diff options
Diffstat (limited to 'lib')
81 files changed, 4092 insertions, 2872 deletions
diff --git a/lib/asn1/src/asn1ct.erl b/lib/asn1/src/asn1ct.erl index f36d71a601..81a2735a0d 100644 --- a/lib/asn1/src/asn1ct.erl +++ b/lib/asn1/src/asn1ct.erl @@ -1335,25 +1335,39 @@ test_value(Module, Type, Value) -> in_process(fun() -> case catch Module:encode(Type, Value) of {ok, Bytes} -> - NewBytes = prepare_bytes(Bytes), - case Module:decode(Type, NewBytes) of - {ok, Value} -> - {ok, {Module, Type, Value}}; - {ok, Res} -> - {error, {asn1, - {encode_decode_mismatch, - {{Module, Type, Value}, Res}}}}; - Error -> - {error, {asn1, - {{decode, - {Module, Type, Value}, Error}}}} - end; + test_value_decode(Module, Type, Value, Bytes); + Bytes when is_binary(Bytes) -> + test_value_decode(Module, Type, Value, Bytes); Error -> {error, {asn1, {encode, {{Module, Type, Value}, Error}}}} end end). + +test_value_decode(Module, Type, Value, Bytes) -> + NewBytes = prepare_bytes(Bytes), + case Module:decode(Type, NewBytes) of + {ok,Value} -> {ok, {Module,Type,Value}}; + {ok,Value,<<>>} -> {ok, {Module,Type,Value}}; + Value -> {ok, {Module,Type,Value}}; + {Value,<<>>} -> {ok, {Module,Type,Value}}; + + %% Errors: + {ok, Res} -> + {error, {asn1, + {encode_decode_mismatch, + {{Module, Type, Value}, Res}}}}; + {ok, Res, Rest} -> + {error, {asn1, + {encode_decode_mismatch, + {{Module, Type, Value}, {Res,Rest}}}}}; + Error -> + {error, {asn1, + {{decode, + {Module, Type, Value}, Error}}}} + end. + value(Module, Type) -> value(Module, Type, []). value(Module, Type, Includes) -> diff --git a/lib/asn1/src/asn1ct_gen.erl b/lib/asn1/src/asn1ct_gen.erl index 84c7f39d55..efbc6d6380 100644 --- a/lib/asn1/src/asn1ct_gen.erl +++ b/lib/asn1/src/asn1ct_gen.erl @@ -707,6 +707,7 @@ gen_exports([_|_]=L0, Prefix, Arity) -> pgen_dispatcher(Erules, []) -> gen_info_functions(Erules); pgen_dispatcher(Gen, Types) -> + %% MODULE HEAD emit(["-export([encode/2,decode/2]).",nl,nl]), gen_info_functions(Gen), @@ -714,6 +715,7 @@ pgen_dispatcher(Gen, Types) -> NoFinalPadding = lists:member(no_final_padding, Options), NoOkWrapper = proplists:get_bool(no_ok_wrapper, Options), + %% ENCODER Call = case Gen of #gen{erule=per,aligned=true} -> asn1ct_func:need({per,complete,1}), @@ -740,6 +742,7 @@ pgen_dispatcher(Gen, Types) -> end, emit([nl,nl]), + %% DECODER ReturnRest = proplists:get_bool(undec_rest, Gen#gen.options), Data = case Gen#gen.erule =:= ber andalso ReturnRest of true -> "Data0"; @@ -747,6 +750,12 @@ pgen_dispatcher(Gen, Types) -> end, emit(["decode(Type, ",Data,") ->",nl]), + + case NoOkWrapper of + false -> emit(["try",nl]); + true -> ok + end, + DecWrap = case {Gen,ReturnRest} of {#gen{erule=ber},false} -> @@ -754,32 +763,38 @@ pgen_dispatcher(Gen, Types) -> "element(1, ber_decode_nif(Data))"; {#gen{erule=ber},true} -> asn1ct_func:need({ber,ber_decode_nif,1}), - emit(["{Data,Rest} = ber_decode_nif(Data0),",nl]), + emit([" {Data,Rest} = ber_decode_nif(Data0),",nl]), "Data"; {_,_} -> "Data" end, - emit([case NoOkWrapper of - false -> "try"; - true -> "case" - end, " decode_disp(Type, ",DecWrap,") of",nl]), - case Gen of - #gen{erule=ber} -> - emit([" Result ->",nl]); - #gen{erule=per} -> - emit([" {Result,Rest} ->",nl]) - end, - case ReturnRest of - false -> result_line(NoOkWrapper, ["Result"]); - true -> result_line(NoOkWrapper, ["Result","Rest"]) + + DecodeDisp = ["decode_disp(Type, ",DecWrap,")"], + case {Gen,ReturnRest} of + {#gen{erule=ber},true} -> + emit([" Result = ",DecodeDisp,",",nl]), + result_line(NoOkWrapper, ["Result","Rest"]); + {#gen{erule=ber},false} -> + emit([" Result = ",DecodeDisp,",",nl]), + result_line(NoOkWrapper, ["Result"]); + + + {#gen{erule=per},true} -> + emit([" {Result,Rest} = ",DecodeDisp,",",nl]), + result_line(NoOkWrapper, ["Result","Rest"]); + {#gen{erule=per},false} -> + emit([" {Result,_Rest} = ",DecodeDisp,",",nl]), + result_line(NoOkWrapper, ["Result"]) end, + case NoOkWrapper of false -> emit([nl,try_catch(),nl,nl]); true -> - emit([nl,"end.",nl,nl]) + emit([".",nl,nl]) end, + %% REST of MODULE gen_decode_partial_incomplete(Gen), gen_partial_inc_dispatcher(Gen), @@ -787,7 +802,7 @@ pgen_dispatcher(Gen, Types) -> gen_dispatcher(Types, "decode_disp", "dec_"). result_line(NoOkWrapper, Items) -> - S = [" "|case NoOkWrapper of + S = [" "|case NoOkWrapper of false -> result_line_1(["ok"|Items]); true -> result_line_1(Items) end], diff --git a/lib/common_test/doc/src/Makefile b/lib/common_test/doc/src/Makefile index b60b04c4ae..293ef591cb 100644 --- a/lib/common_test/doc/src/Makefile +++ b/lib/common_test/doc/src/Makefile @@ -60,6 +60,7 @@ XML_REF6_FILES = common_test_app.xml XML_PART_FILES = part.xml XML_CHAPTER_FILES = \ + introduction.xml \ basics_chapter.xml \ getting_started_chapter.xml \ install_chapter.xml \ @@ -74,8 +75,7 @@ XML_CHAPTER_FILES = \ event_handler_chapter.xml \ ct_hooks_chapter.xml \ dependencies_chapter.xml \ - notes.xml \ - notes_history.xml + notes.xml BOOK_FILES = book.xml diff --git a/lib/compiler/doc/src/Makefile b/lib/compiler/doc/src/Makefile index 254445c111..13210de040 100644 --- a/lib/compiler/doc/src/Makefile +++ b/lib/compiler/doc/src/Makefile @@ -39,7 +39,7 @@ XML_APPLICATION_FILES = ref_man.xml XML_REF3_FILES = compile.xml XML_PART_FILES = -XML_CHAPTER_FILES = notes.xml notes_history.xml +XML_CHAPTER_FILES = notes.xml BOOK_FILES = book.xml diff --git a/lib/compiler/doc/src/notes.xml b/lib/compiler/doc/src/notes.xml index 433fc3b86e..2aec75a2aa 100644 --- a/lib/compiler/doc/src/notes.xml +++ b/lib/compiler/doc/src/notes.xml @@ -510,6 +510,22 @@ </section> + +<section><title>Compiler 6.0.3.1</title> + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fail labels on guard BIFs weren't taken into account + during an optimization pass, and a bug in the validation + pass sometimes prevented this from being noticed when a + fault occurred.</p> + <p> + Own Id: OTP-14522 Aux Id: ERIERL-48 </p> + </item> + </list> + </section> +</section> + <section><title>Compiler 6.0.3</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/lib/compiler/src/beam_listing.erl b/lib/compiler/src/beam_listing.erl index 9422f9a78a..73c6501fe5 100644 --- a/lib/compiler/src/beam_listing.erl +++ b/lib/compiler/src/beam_listing.erl @@ -23,6 +23,7 @@ -include("core_parse.hrl"). -include("v3_kernel.hrl"). +-include("beam_disasm.hrl"). -import(lists, [foreach/2]). diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl index b0d0da0f66..327fecf0e6 100644 --- a/lib/compiler/src/compile.erl +++ b/lib/compiler/src/compile.erl @@ -787,8 +787,10 @@ asm_passes() -> | binary_passes()]. binary_passes() -> - [{native_compile,fun test_native/1,fun native_compile/2}, - {unless,binary,?pass(save_binary,not_werror)}]. + [{iff,'to_dis',?pass(to_dis)}, + {native_compile,fun test_native/1,fun native_compile/2}, + {unless,binary,?pass(save_binary,not_werror)} + ]. %%% %%% Compiler passes. @@ -1764,6 +1766,21 @@ listing(LFun, Ext, Code, St) -> {error,St#compile{errors=St#compile.errors ++ Es}} end. +to_dis(Code, #compile{module=Module,ofile=Outfile}=St) -> + Loaded = code:is_loaded(Module), + Sticky = code:is_sticky(Module), + _ = [code:unstick_mod(Module) || Sticky], + + {module,Module} = code:load_binary(Module, "", Code), + DestDir = filename:dirname(Outfile), + DisFile = filename:join(DestDir, atom_to_list(Module) ++ ".dis"), + ok = erts_debug:dis_to_file(Module, DisFile), + + %% Restore loaded module + _ = [{module, Module} = code:load_file(Module) || Loaded =/= false], + [code:stick_mod(Module) || Sticky], + {ok,Code,St}. + output_encoding(F, #compile{encoding = none}) -> ok = io:setopts(F, [{encoding, epp:default_encoding()}]); output_encoding(F, #compile{encoding = Encoding}) -> diff --git a/lib/compiler/test/compile_SUITE.erl b/lib/compiler/test/compile_SUITE.erl index 8fe2a93f95..daebbe9d9d 100644 --- a/lib/compiler/test/compile_SUITE.erl +++ b/lib/compiler/test/compile_SUITE.erl @@ -408,6 +408,7 @@ do_file_listings(DataDir, PrivDir, [File|Files]) -> ok = file:delete(filename:join(Listings, File ++ ".core")), do_listing(Simple, TargetDir, to_core, ".core"), do_listing(Simple, TargetDir, to_kernel, ".kernel"), + do_listing(Simple, TargetDir, to_dis, ".dis"), %% Final clean up. lists:foreach(fun(F) -> ok = file:delete(F) end, @@ -423,6 +424,7 @@ listings_big(Config) when is_list(Config) -> do_listing(Big, TargetDir, 'E'), do_listing(Big, TargetDir, 'P'), do_listing(Big, TargetDir, dkern, ".kernel"), + do_listing(Big, TargetDir, to_dis, ".dis"), TargetNoext = filename:rootname(Target, code:objfile_extension()), {ok,big} = compile:file(TargetNoext, [from_asm,{outdir,TargetDir}]), diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index b29c5082ba..f05bfa10b3 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -4011,7 +4011,7 @@ static int get_pkey_private_key(ErlNifEnv *env, ERL_NIF_TERM algorithm, ERL_NIF_ return PKEY_BADARG; password = get_key_password(env, key); *pkey = ENGINE_load_private_key(e, id, NULL, password); - if (!pkey) + if (!*pkey) return PKEY_BADARG; enif_free(id); #else @@ -4657,7 +4657,6 @@ static ERL_NIF_TERM pkey_crypt_nif(ErlNifEnv *env, int argc, const ERL_NIF_TERM enif_alloc_binary(outlen, &out_bin); - ERL_VALGRIND_ASSERT_MEM_DEFINED(out_bin.data, out_bin.size); if (is_private) { if (is_encrypt) { /* private_encrypt */ @@ -4795,7 +4794,6 @@ static ERL_NIF_TERM privkey_to_pubkey_nif(ErlNifEnv* env, int argc, const ERL_NI EVP_PKEY *pkey; ERL_NIF_TERM alg = argv[0]; ERL_NIF_TERM result[8]; - if (get_pkey_private_key(env, alg, argv[1], &pkey) != PKEY_OK) { return enif_make_badarg(env); } diff --git a/lib/crypto/c_src/otp_test_engine.c b/lib/crypto/c_src/otp_test_engine.c index a66bee2ddf..5c6122c06a 100644 --- a/lib/crypto/c_src/otp_test_engine.c +++ b/lib/crypto/c_src/otp_test_engine.c @@ -218,9 +218,9 @@ EVP_PKEY* test_key_load(ENGINE *er, const char *id, UI_METHOD *ui_method, void * fclose(f); if (!pkey) { - fprintf(stderr, "%s:%d Key read from file failed. ", __FILE__,__LINE__); + fprintf(stderr, "%s:%d Key read from file %s failed.\r\n", __FILE__,__LINE__,id); if (callback_data) - fprintf(stderr, "Pwd = \"%s\". ", (char *)callback_data); + fprintf(stderr, "Pwd = \"%s\".\r\n", (char *)callback_data); fprintf(stderr, "Contents of file \"%s\":\r\n",id); f = fopen(id, "r"); { /* Print the contents of the key file */ @@ -228,12 +228,14 @@ EVP_PKEY* test_key_load(ENGINE *er, const char *id, UI_METHOD *ui_method, void * while (!feof(f)) { switch (c=fgetc(f)) { case '\n': - case '\r': putc('\r',stdout); putc('\n',stdout); break; - default: putc(c, stdout); + case '\r': putc('\r',stderr); putc('\n',stderr); break; + default: putc(c, stderr); } } } + fprintf(stderr, "File contents printed.\r\n"); fclose(f); + return NULL; } return pkey; diff --git a/lib/crypto/doc/src/Makefile b/lib/crypto/doc/src/Makefile index a902779383..aa987d2b39 100644 --- a/lib/crypto/doc/src/Makefile +++ b/lib/crypto/doc/src/Makefile @@ -39,7 +39,7 @@ XML_REF3_FILES = crypto.xml XML_REF6_FILES = crypto_app.xml XML_PART_FILES = usersguide.xml -XML_CHAPTER_FILES = notes.xml licenses.xml fips.xml engine_load.xml +XML_CHAPTER_FILES = notes.xml licenses.xml fips.xml engine_load.xml engine_keys.xml BOOK_FILES = book.xml diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml index 3ab8f9c832..c681ead797 100644 --- a/lib/crypto/doc/src/crypto.xml +++ b/lib/crypto/doc/src/crypto.xml @@ -136,11 +136,12 @@ See also <seealso marker="#supports-0">crypto:supports/0</seealso> </p> + <marker id="engine_key_ref_type"/> <code>engine_key_ref() = #{engine := engine_ref(), key_id := key_id(), password => password()}</code> - <code>engine_key_ref() = term()</code> + <code>engine_ref() = term()</code> <p>The result of a call to <seealso marker="#engine_load-3">engine_load/3</seealso>. </p> @@ -628,6 +629,10 @@ <p>Fetches the corresponding public key from a private key stored in an Engine. The key must be of the type indicated by the Type parameter. </p> + <p> + May throw exception notsup in case there is + no engine support in the underlying OpenSSL implementation. + </p> </desc> </func> diff --git a/lib/crypto/doc/src/engine_keys.xml b/lib/crypto/doc/src/engine_keys.xml new file mode 100644 index 0000000000..38714fed8a --- /dev/null +++ b/lib/crypto/doc/src/engine_keys.xml @@ -0,0 +1,129 @@ +<?xml version="1.0" encoding="utf-8" ?> +<!DOCTYPE chapter SYSTEM "chapter.dtd"> + +<chapter> + <header> + <copyright> + <year>2017</year><year>2017</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + </legalnotice> + <title>Engine Stored Keys</title> + <prepared>Hans Nilsson</prepared> + <date>2017-11-10</date> + <file>engine_keys.xml</file> + </header> + <p> + <marker id="engine_key"></marker> + This chapter describes the support in the crypto application for using public and private keys stored in encryption engines. + </p> + + <section> + <title>Background</title> + <p> + <url href="https://www.openssl.org/">OpenSSL</url> exposes an Engine API, which makes + it possible to plug in alternative implementations for some of the cryptographic + operations implemented by OpenSSL. + See the chapter <seealso marker="crypto:engine_load#engine_load">Engine Load</seealso> + for details and how to load an Engine. + </p> + <p> + An engine could among other tasks provide a storage for + private or public keys. Such a storage could be made safer than the normal file system. Thoose techniques are not + described in this User's Guide. Here we concentrate on how to use private or public keys stored in + such an engine. + </p> + <p> + The storage engine must call <c>ENGINE_set_load_privkey_function</c> and <c>ENGINE_set_load_pubkey_function</c>. + See the OpenSSL cryptolib's <url href="https://www.openssl.org/docs/manpages.html">manpages</url>. + </p> + <p> + OTP/Crypto requires that the user provides two or three items of information about the key. The application used + by the user is usually on a higher level, for example in + <seealso marker="ssl:ssl#key_option_def">SSL</seealso>. If using + the crypto application directly, it is required that: + </p> + <list> + <item>an Engine is loaded, see the chapter on <seealso marker="crypto:engine_load#engine_load">Engine Load</seealso> + or the <seealso marker="crypto:crypto#engine_load-3">Reference Manual</seealso> + </item> + <item>a reference to a key in the Engine is available. This should be an Erlang string or binary and depends + on the Engine loaded + </item> + <item>an Erlang map is constructed with the Engine reference, the key reference and possibly a key passphrase if + needed by the Engine. See the <seealso marker="crypto:crypto#engine_key_ref_type">Reference Manual</seealso> for + details of the map. + </item> + </list> + </section> + + <section> + <title>Use Cases</title> + <section> + <title>Sign with an engine stored private key</title> + <p> + This example shows how to construct a key reference that is used in a sign operation. + The actual key is stored in the engine that is loaded at prompt 1. + </p> + <code> +1> {ok, EngineRef} = crypto:engine_load(....). +... +{ok,#Ref<0.2399045421.3028942852.173962>} +2> PrivKey = #{engine => EngineRef, + key_id => "id of the private key in Engine"}. +... +3> Signature = crypto:sign(rsa, sha, <<"The message">>, PrivKey). +<<65,6,125,254,54,233,84,77,83,63,168,28,169,214,121,76, + 207,177,124,183,156,185,160,243,36,79,125,230,231,...>> + </code> + </section> + + <section> + <title>Verify with an engine stored public key</title> + <p> + Here the signature and message in the last example is verifyed using the public key. + The public key is stored in an engine, only to exemplify that it is possible. The public + key could of course be handled openly as usual. + </p> + <code> +4> PublicKey = #{engine => EngineRef, + key_id => "id of the public key in Engine"}. +... +5> crypto:verify(rsa, sha, <<"The message">>, Signature, PublicKey). +true +6> + </code> + </section> + + <section> + <title>Using a password protected private key</title> + <p> + The same example as the first sign example, except that a password protects the key down in the Engine. + </p> + <code> +6> PrivKeyPwd = #{engine => EngineRef, + key_id => "id of the pwd protected private key in Engine", + password => "password"}. +... +7> crypto:sign(rsa, sha, <<"The message">>, PrivKeyPwd). +<<140,80,168,101,234,211,146,183,231,190,160,82,85,163, + 175,106,77,241,141,120,72,149,181,181,194,154,175,76, + 223,...>> +8> + </code> + + </section> + + </section> +</chapter> diff --git a/lib/crypto/doc/src/usersguide.xml b/lib/crypto/doc/src/usersguide.xml index f637a1db79..e2ba1fe160 100644 --- a/lib/crypto/doc/src/usersguide.xml +++ b/lib/crypto/doc/src/usersguide.xml @@ -49,4 +49,5 @@ <xi:include href="licenses.xml"/> <xi:include href="fips.xml"/> <xi:include href="engine_load.xml"/> + <xi:include href="engine_keys.xml"/> </part> diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl index 9ba1623348..91e154280f 100644 --- a/lib/crypto/src/crypto.erl +++ b/lib/crypto/src/crypto.erl @@ -1100,7 +1100,7 @@ ec_curve(X) -> privkey_to_pubkey(Alg, EngineMap) when Alg == rsa; Alg == dss; Alg == ecdsa -> - case privkey_to_pubkey_nif(Alg, format_pkey(Alg,EngineMap)) of + case notsup_to_error(privkey_to_pubkey_nif(Alg, format_pkey(Alg,EngineMap))) of [_|_]=L -> map_ensure_bin_as_int(L); X -> X end. diff --git a/lib/crypto/test/engine_SUITE.erl b/lib/crypto/test/engine_SUITE.erl index 72bd59f8ab..5967331d8e 100644 --- a/lib/crypto/test/engine_SUITE.erl +++ b/lib/crypto/test/engine_SUITE.erl @@ -53,10 +53,15 @@ groups() -> sign_verify_dsa, sign_verify_ecdsa, sign_verify_rsa_pwd, + sign_verify_rsa_pwd_bad_pwd, priv_encrypt_pub_decrypt_rsa, priv_encrypt_pub_decrypt_rsa_pwd, pub_encrypt_priv_decrypt_rsa, pub_encrypt_priv_decrypt_rsa_pwd, + get_pub_from_priv_key_rsa, + get_pub_from_priv_key_rsa_pwd, + get_pub_from_priv_key_rsa_pwd_no_pwd, + get_pub_from_priv_key_rsa_pwd_bad_pwd, get_pub_from_priv_key_dsa, get_pub_from_priv_key_ecdsa ]}]. @@ -382,6 +387,18 @@ sign_verify_rsa_pwd(Config) -> key_id => key_id(Config, "rsa_public_key_pwd.pem")}, sign_verify(rsa, sha, Priv, Pub). +sign_verify_rsa_pwd_bad_pwd(Config) -> + Priv = #{engine => engine_ref(Config), + key_id => key_id(Config, "rsa_private_key_pwd.pem"), + password => "Bad password"}, + Pub = #{engine => engine_ref(Config), + key_id => key_id(Config, "rsa_public_key_pwd.pem")}, + try sign_verify(rsa, sha, Priv, Pub) of + _ -> {fail, "PWD prot pubkey sign succeded with no pwd!"} + catch + error:badarg -> ok + end. + priv_encrypt_pub_decrypt_rsa(Config) -> Priv = #{engine => engine_ref(Config), key_id => key_id(Config, "rsa_private_key.pem")}, @@ -406,35 +423,74 @@ pub_encrypt_priv_decrypt_rsa(Config) -> pub_encrypt_priv_decrypt_rsa_pwd(Config) -> Priv = #{engine => engine_ref(Config), - key_id => key_id(Config, "rsa_private_key.pem"), + key_id => key_id(Config, "rsa_private_key_pwd.pem"), password => "password"}, Pub = #{engine => engine_ref(Config), - key_id => key_id(Config, "rsa_public_key.pem")}, + key_id => key_id(Config, "rsa_public_key_pwd.pem")}, pub_enc_priv_dec(rsa, Pub, Priv, rsa_pkcs1_padding). get_pub_from_priv_key_rsa(Config) -> Priv = #{engine => engine_ref(Config), key_id => key_id(Config, "rsa_private_key.pem")}, - Pub = crypto:privkey_to_pubkey(rsa, Priv), - ct:log("rsa Pub = ~p",[Pub]), - sign_verify(rsa, sha, Priv, Pub). + try crypto:privkey_to_pubkey(rsa, Priv) of + Pub -> + ct:log("rsa Pub = ~p",[Pub]), + sign_verify(rsa, sha, Priv, Pub) + catch + error:notsup -> {skip, "RSA not implemented"} + end. + +get_pub_from_priv_key_rsa_pwd(Config) -> + Priv = #{engine => engine_ref(Config), + key_id => key_id(Config, "rsa_private_key_pwd.pem"), + password => "password"}, + try crypto:privkey_to_pubkey(rsa, Priv) of + Pub -> + ct:log("rsa Pub = ~p",[Pub]), + sign_verify(rsa, sha, Priv, Pub) + catch + error:notsup -> {skip, "RSA not supported"} + end. + +get_pub_from_priv_key_rsa_pwd_no_pwd(Config) -> + Priv = #{engine => engine_ref(Config), + key_id => key_id(Config, "rsa_private_key_pwd.pem")}, + try crypto:privkey_to_pubkey(rsa, Priv) of + _ -> {fail, "PWD prot pubkey fetch succeded although no pwd!"} + catch + error:badarg -> ok + end. + +get_pub_from_priv_key_rsa_pwd_bad_pwd(Config) -> + Priv = #{engine => engine_ref(Config), + key_id => key_id(Config, "rsa_private_key_pwd.pem"), + password => "Bad password"}, + try crypto:privkey_to_pubkey(rsa, Priv) of + _ -> {fail, "PWD prot pubkey fetch succeded with bad pwd!"} + catch + error:badarg -> ok + end. get_pub_from_priv_key_dsa(Config) -> Priv = #{engine => engine_ref(Config), key_id => key_id(Config, "dsa_private_key.pem")}, - Pub = crypto:privkey_to_pubkey(dss, Priv), - ct:log("dsa Pub = ~p",[Pub]), - sign_verify(dss, sha, Priv, Pub). + try crypto:privkey_to_pubkey(dss, Priv) of + Pub -> + ct:log("dsa Pub = ~p",[Pub]), + sign_verify(dss, sha, Priv, Pub) + catch + error:notsup -> {skip, "DSA not supported"} + end. get_pub_from_priv_key_ecdsa(Config) -> Priv = #{engine => engine_ref(Config), key_id => key_id(Config, "ecdsa_private_key.pem")}, - Pub = crypto:privkey_to_pubkey(ecdsa, Priv), - case Pub of - notsup -> {skip, "ECDSA not implemented"}; - _ -> + try crypto:privkey_to_pubkey(ecdsa, Priv) of + Pub -> ct:log("ecdsa Pub = ~p",[Pub]), sign_verify(ecdsa, sha, Priv, Pub) + catch + error:notsup -> {skip, "ECDSA not supported"} end. %%%================================================================ diff --git a/lib/debugger/doc/src/Makefile b/lib/debugger/doc/src/Makefile index 0f724b6f17..cc0b8861d3 100644 --- a/lib/debugger/doc/src/Makefile +++ b/lib/debugger/doc/src/Makefile @@ -41,7 +41,7 @@ XML_APPLICATION_FILES = ref_man.xml XML_REF3_FILES = debugger.xml i.xml int.xml XML_PART_FILES = part.xml -XML_CHAPTER_FILES = debugger_chapter.xml notes.xml +XML_CHAPTER_FILES = introduction.xml debugger_chapter.xml notes.xml BOOK_FILES = book.xml diff --git a/lib/debugger/test/guard_SUITE.erl b/lib/debugger/test/guard_SUITE.erl index f7874f79df..e781ea932f 100644 --- a/lib/debugger/test/guard_SUITE.erl +++ b/lib/debugger/test/guard_SUITE.erl @@ -390,7 +390,7 @@ all_types() -> {atom, xxxx}, {ref, make_ref()}, {pid, self()}, - {port, open_port({spawn, efile}, [])}, + {port, make_port()}, {function, fun(X) -> X+1, "" end}, {binary, list_to_binary([])}]. @@ -435,6 +435,9 @@ type_test(binary, X) when binary(X) -> type_test(function, X) when function(X) -> function. +make_port() -> + hd(erlang:ports()). + const_guard(Config) when is_list(Config) -> if (0 == 0) and ((0 == 0) or (0 == 0)) -> diff --git a/lib/dialyzer/test/small_SUITE_data/results/maps_sum b/lib/dialyzer/test/small_SUITE_data/results/maps_sum index bd192bdb93..b29ac77d88 100644 --- a/lib/dialyzer/test/small_SUITE_data/results/maps_sum +++ b/lib/dialyzer/test/small_SUITE_data/results/maps_sum @@ -1,4 +1,4 @@ -maps_sum.erl:15: Invalid type specification for function maps_sum:wrong1/1. The success typing is (map()) -> any() +maps_sum.erl:15: Invalid type specification for function maps_sum:wrong1/1. The success typing is (maps:iterator() | map()) -> any() maps_sum.erl:26: Function wrong2/1 has no local return maps_sum.erl:27: The call lists:foldl(fun((_,_,_) -> any()),0,Data::any()) will never return since it differs in the 1st argument from the success typing arguments: (fun((_,_) -> any()),any(),[any()]) diff --git a/lib/eldap/doc/src/Makefile b/lib/eldap/doc/src/Makefile index ac869e446f..aff1da4a9a 100644 --- a/lib/eldap/doc/src/Makefile +++ b/lib/eldap/doc/src/Makefile @@ -37,7 +37,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN) XML_APPLICATION_FILES = ref_man.xml XML_REF3_FILES = eldap.xml -XML_PART_FILES = release_notes.xml usersguide.xml +XML_PART_FILES = usersguide.xml XML_CHAPTER_FILES = notes.xml BOOK_FILES = book.xml diff --git a/lib/erl_interface/doc/src/Makefile b/lib/erl_interface/doc/src/Makefile index a96ef62786..8ef7e9648c 100644 --- a/lib/erl_interface/doc/src/Makefile +++ b/lib/erl_interface/doc/src/Makefile @@ -53,7 +53,7 @@ XML_APPLICATION_FILES = ref_man.xml #ref_man_ei.xml ref_man_erl_interface.xml XML_PART_FILES = \ part.xml -XML_CHAPTER_FILES = ei_users_guide.xml notes.xml notes_history.xml +XML_CHAPTER_FILES = ei_users_guide.xml notes.xml XML_FILES = $(XML_REF1_FILES) $(XML_REF3_FILES) $(BOOK_FILES) \ $(XML_APPLICATION_FILES) $(XML_PART_FILES) $(XML_CHAPTER_FILES) diff --git a/lib/erl_interface/src/Makefile b/lib/erl_interface/src/Makefile index 31f34d4bba..135522397b 100644 --- a/lib/erl_interface/src/Makefile +++ b/lib/erl_interface/src/Makefile @@ -29,5 +29,5 @@ include $(ERL_TOP)/make/target.mk debug opt shared purify quantify purecov gcov: $(make_verbose)$(MAKE) -f $(TARGET)/Makefile TYPE=$@ -clean depend docs release release_docs tests release_tests check: +clean depend docs release release_docs tests release_tests check xmllint: $(make_verbose)$(MAKE) -f $(TARGET)/Makefile $@ diff --git a/lib/erl_interface/src/Makefile.in b/lib/erl_interface/src/Makefile.in index 4f393e952c..69b5b6003d 100644 --- a/lib/erl_interface/src/Makefile.in +++ b/lib/erl_interface/src/Makefile.in @@ -854,3 +854,5 @@ endif release_docs: release_tests: + +xmllint: diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl index a3a936322a..462a1f9dcd 100644 --- a/lib/hipe/cerl/erl_bif_types.erl +++ b/lib/hipe/cerl/erl_bif_types.erl @@ -1701,24 +1701,6 @@ type(maps, size, 1, Xs, Opaques) -> t_from_range(LowerBound, UpperBound) end end, Opaques); -type(maps, to_list, 1, Xs, Opaques) -> - strict(maps, to_list, 1, Xs, - fun ([Map]) -> - DefK = t_map_def_key(Map, Opaques), - DefV = t_map_def_val(Map, Opaques), - Pairs = t_map_entries(Map, Opaques), - EType = lists:foldl( - fun({K,_,V},EType0) -> - case t_is_none(V) of - true -> t_subtract(EType0, t_tuple([K,t_any()])); - false -> t_sup(EType0, t_tuple([K,V])) - end - end, t_tuple([DefK, DefV]), Pairs), - case t_is_none(EType) of - true -> t_nil(); - false -> t_list(EType) - end - end, Opaques); type(maps, update, 3, Xs, Opaques) -> strict(maps, update, 3, Xs, fun ([Key, Value, Map]) -> @@ -2648,8 +2630,6 @@ arg_types(maps, put, 3) -> [t_any(), t_any(), t_map()]; arg_types(maps, size, 1) -> [t_map()]; -arg_types(maps, to_list, 1) -> - [t_map()]; arg_types(maps, update, 3) -> [t_any(), t_any(), t_map()]; arg_types(M, F, A) when is_atom(M), is_atom(F), diff --git a/lib/hipe/doc/src/Makefile b/lib/hipe/doc/src/Makefile index 63154abd6a..1c774d3357 100644 --- a/lib/hipe/doc/src/Makefile +++ b/lib/hipe/doc/src/Makefile @@ -38,7 +38,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN) XML_APPLICATION_FILES = ref_man.xml XML_REF3_FILES = -XML_PART_FILES = +XML_PART_FILES = hipe_app.xml XML_CHAPTER_FILES = notes.xml BOOK_FILES = book.xml diff --git a/lib/hipe/doc/src/hipe_app.xml b/lib/hipe/doc/src/hipe_app.xml index 9299c6d73f..aaeb06193d 100644 --- a/lib/hipe/doc/src/hipe_app.xml +++ b/lib/hipe/doc/src/hipe_app.xml @@ -99,17 +99,6 @@ each mode.</p> </item> - <tag>Optimization for <c>receive</c> with unique references</tag> - <item><p>The BEAM compiler can do an optimization when - a <c>receive</c> statement is <em>only</em> waiting for messages - containing a reference created before the receive. All messages - that existed in the queue when the reference was created will be - bypassed, as they cannot possibly contain the reference. HiPE - does not implement this optimization.</p> - <p>An example of this is when - <c>gen_server:call()</c> waits for the reply message.</p> - </item> - </taglist> </section> <section> diff --git a/lib/hipe/icode/hipe_beam_to_icode.erl b/lib/hipe/icode/hipe_beam_to_icode.erl index cb4c1cfbd3..4c7fbad711 100644 --- a/lib/hipe/icode/hipe_beam_to_icode.erl +++ b/lib/hipe/icode/hipe_beam_to_icode.erl @@ -415,11 +415,13 @@ trans_fun([{wait_timeout,{_,Lbl},Reg}|Instructions], Env) -> SuspTmout = hipe_icode:mk_if(suspend_msg_timeout,[], map_label(Lbl),hipe_icode:label_name(DoneLbl)), Movs ++ [SetTmout, SuspTmout, DoneLbl | trans_fun(Instructions,Env1)]; -%%--- recv_mark/1 & recv_set/1 --- XXX: Handle better?? +%%--- recv_mark/1 & recv_set/1 --- trans_fun([{recv_mark,{f,_}}|Instructions], Env) -> - trans_fun(Instructions,Env); + Mark = hipe_icode:mk_primop([],recv_mark,[]), + [Mark | trans_fun(Instructions,Env)]; trans_fun([{recv_set,{f,_}}|Instructions], Env) -> - trans_fun(Instructions,Env); + Set = hipe_icode:mk_primop([],recv_set,[]), + [Set | trans_fun(Instructions,Env)]; %%-------------------------------------------------------------------- %%--- Translation of arithmetics {bif,ArithOp, ...} --- %%-------------------------------------------------------------------- diff --git a/lib/hipe/icode/hipe_icode_primops.erl b/lib/hipe/icode/hipe_icode_primops.erl index 50ece05259..ec9e3c8608 100644 --- a/lib/hipe/icode/hipe_icode_primops.erl +++ b/lib/hipe/icode/hipe_icode_primops.erl @@ -67,6 +67,8 @@ is_safe(fp_mul) -> false; is_safe(fp_sub) -> false; is_safe(mktuple) -> true; is_safe(next_msg) -> false; +is_safe(recv_mark) -> false; +is_safe(recv_set) -> false; is_safe(redtest) -> false; is_safe(select_msg) -> false; is_safe(self) -> true; @@ -165,6 +167,8 @@ fails(fp_mul) -> false; fails(fp_sub) -> false; fails(mktuple) -> false; fails(next_msg) -> false; +fails(recv_mark) -> false; +fails(recv_set) -> false; fails(redtest) -> false; fails(select_msg) -> false; fails(self) -> false; @@ -709,6 +713,10 @@ type(Primop, Args) -> erl_types:t_any(); next_msg -> erl_types:t_any(); + recv_mark -> + erl_types:t_any(); + recv_set -> + erl_types:t_any(); select_msg -> erl_types:t_any(); set_timeout -> @@ -883,6 +891,10 @@ type(Primop) -> erl_types:t_any(); next_msg -> erl_types:t_any(); + recv_mark -> + erl_types:t_any(); + recv_set -> + erl_types:t_any(); select_msg -> erl_types:t_any(); set_timeout -> diff --git a/lib/hipe/icode/hipe_icode_range.erl b/lib/hipe/icode/hipe_icode_range.erl index 287b1c80fe..37360cee73 100644 --- a/lib/hipe/icode/hipe_icode_range.erl +++ b/lib/hipe/icode/hipe_icode_range.erl @@ -1160,6 +1160,8 @@ basic_type(#gc_test{}) -> not_analysed; %% Message handling basic_type(check_get_msg) -> not_analysed; basic_type(next_msg) -> not_analysed; +basic_type(recv_mark) -> not_analysed; +basic_type(recv_set) -> not_analysed; basic_type(select_msg) -> not_analysed; basic_type(suspend_msg) -> not_analysed; %% Functions diff --git a/lib/hipe/rtl/hipe_rtl_primops.erl b/lib/hipe/rtl/hipe_rtl_primops.erl index 850a75f71b..35ae2da895 100644 --- a/lib/hipe/rtl/hipe_rtl_primops.erl +++ b/lib/hipe/rtl/hipe_rtl_primops.erl @@ -291,6 +291,10 @@ gen_primop({Op,Dst,Args,Cont,Fail}, IsGuard, ConstTab) -> gen_select_msg(Dst, Cont); clear_timeout -> gen_clear_timeout(Dst, GotoCont); + recv_mark -> + gen_recv_mark(Dst, GotoCont); + recv_set -> + gen_recv_set(Dst, Cont); set_timeout -> %% BIF call: am_set_timeout -> nbif_set_timeout -> hipe_set_timeout [hipe_rtl:mk_call(Dst, set_timeout, Args, Cont, Fail, not_remote)]; @@ -1064,6 +1068,27 @@ gen_tuple_header(Ptr, Arity) -> %%% %%% Receives +%%% recv_mark is: +%%% p->msg.saved_last = p->msg.last; +gen_recv_mark([], GotoCont) -> + TmpLast = hipe_rtl:mk_new_reg(), + [load_p_field(TmpLast, ?P_MSG_LAST), + store_p_field(TmpLast, ?P_MSG_SAVED_LAST), + GotoCont]. + +%%% recv_set is: +%%% if (p->msg.saved_last) +%%% p->msg.save = p->msg.saved_last; +gen_recv_set([], Cont) -> + TmpSave = hipe_rtl:mk_new_reg(), + TrueLbl = hipe_rtl:mk_new_label(), + [load_p_field(TmpSave, ?P_MSG_SAVED_LAST), + hipe_rtl:mk_branch(TmpSave, ne, hipe_rtl:mk_imm(0), + hipe_rtl:label_name(TrueLbl), Cont), + TrueLbl, + store_p_field(TmpSave, ?P_MSG_SAVE), + hipe_rtl:mk_goto(Cont)]. + gen_check_get_msg(Dsts, GotoCont, Fail) -> gen_check_get_msg_outofline(Dsts, GotoCont, Fail). diff --git a/lib/hipe/test/basic_SUITE_data/basic_receive.erl b/lib/hipe/test/basic_SUITE_data/basic_receive.erl index 5f865d7b7a..20e3f350e8 100644 --- a/lib/hipe/test/basic_SUITE_data/basic_receive.erl +++ b/lib/hipe/test/basic_SUITE_data/basic_receive.erl @@ -12,6 +12,7 @@ test() -> ok = test_wait_timeout(), ok = test_double_timeout(), ok = test_reschedule(), + ok = test_recv_mark(), ok. %%-------------------------------------------------------------------- @@ -54,3 +55,91 @@ doit(First) -> erts_debug:set_internal_state(hipe_test_reschedule_suspend, 1). %%-------------------------------------------------------------------- +%% Check that we cannot cause a recv_mark,recv_set pair to misbehave and +%% deadlock the process. + +test_recv_mark() -> + ok = test_recv_mark(fun disturber_nop/0), + ok = test_recv_mark(fun disturber_receive/0), + ok = test_recv_mark(fun disturber_other/0), + ok = test_recv_mark(fun disturber_recurse/0), + ok = test_recv_mark_after(self(), fun disturber_after_recurse/0, false), + ok = test_recv_mark(fun disturber_other_recurse/0), + ok = test_recv_mark(fun disturber_other_after/0), + ok = test_recv_mark_nested(). + +test_recv_mark(Disturber) -> + Ref = make_ref(), + self() ! Ref, + Disturber(), + receive Ref -> ok + after 0 -> error(failure) + end. + +disturber_nop() -> ok. + +disturber_receive() -> + self() ! message, + receive message -> ok end. + +disturber_other() -> + Ref = make_ref(), + self() ! Ref, + receive Ref -> ok end. + +disturber_recurse() -> + aborted = (catch test_recv_mark(fun() -> throw(aborted) end)), + ok. + +test_recv_mark_after(Recipient, Disturber, IsInner) -> + Ref = make_ref(), + Recipient ! Ref, + Disturber(), + receive + Ref -> ok + after 0 -> + case IsInner of + true -> expected; + false -> error(failure) + end + end. + +disturber_after_recurse() -> + NoOp = fun() -> ok end, + BlackHole = spawn(NoOp), + expected = test_recv_mark_after(BlackHole, NoOp, true), + ok. + +disturber_other_recurse() -> + aborted = (catch disturber_other_recurse(fun() -> throw(aborted) end)), + ok. + +disturber_other_recurse(InnerD) -> + Ref = make_ref(), + self() ! Ref, + InnerD(), + receive Ref -> ok + after 0 -> error(failure) + end. + +disturber_other_after() -> + BlackHole = spawn(fun() -> ok end), + Ref = make_ref(), + BlackHole ! Ref, + receive Ref -> error(imposible) + after 0 -> ok + end. + +test_recv_mark_nested() -> + Ref1 = make_ref(), + self() ! Ref1, + begin + Ref2 = make_ref(), + self() ! Ref2, + receive Ref2 -> ok end + end, + receive Ref1 -> ok + after 0 -> error(failure) + end. + +%%-------------------------------------------------------------------- diff --git a/lib/inets/doc/src/Makefile b/lib/inets/doc/src/Makefile index 14f12ee949..cbfa5c9e30 100644 --- a/lib/inets/doc/src/Makefile +++ b/lib/inets/doc/src/Makefile @@ -39,6 +39,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN) XML_APPLICATION_FILES = ref_man.xml XML_CHAPTER_FILES = \ + introduction.xml \ inets_services.xml \ http_client.xml \ http_server.xml \ diff --git a/lib/inets/doc/src/httpc.xml b/lib/inets/doc/src/httpc.xml index 29e4b22632..58714328c5 100644 --- a/lib/inets/doc/src/httpc.xml +++ b/lib/inets/doc/src/httpc.xml @@ -287,8 +287,7 @@ {autoredirect, boolean()} | {proxy_auth, {userstring(), passwordstring()}} | {version, http_version()} | - {relaxed, boolean()} | - {url_encode, boolean()}</v> + {relaxed, boolean()}</v> <v>timeout() = integer() >= 0 | infinity</v> <v>Options = options()</v> <v>options() = [option()]</v> @@ -379,13 +378,6 @@ from the HTTP-standard are enabled.</p> <p>Default is <c>false</c>.</p> </item> - - <tag><c><![CDATA[url_encode]]></c></tag> - <item> - <p>Applies Percent-encoding, also known as URL encoding on the - URL.</p> - <p>Default is <c>false</c>.</p> - </item> </taglist> <p>Option (<c>option()</c>) details:</p> diff --git a/lib/inets/src/http_client/httpc.erl b/lib/inets/src/http_client/httpc.erl index bf2da82603..2efe2c2858 100644 --- a/lib/inets/src/http_client/httpc.erl +++ b/lib/inets/src/http_client/httpc.erl @@ -175,10 +175,10 @@ request(Method, (Method =:= delete) orelse (Method =:= trace) andalso (is_atom(Profile) orelse is_pid(Profile)) -> - case uri_parse(Url, Options) of - {error, Reason} -> + case uri_string:parse(uri_string:normalize(Url)) of + {error, Reason, _} -> {error, Reason}; - {ok, ParsedUrl} -> + ParsedUrl -> case header_parse(Headers) of {error, Reason} -> {error, Reason}; @@ -189,10 +189,10 @@ request(Method, end. do_request(Method, {Url, Headers, ContentType, Body}, HTTPOptions, Options, Profile) -> - case uri_parse(Url, Options) of - {error, Reason} -> + case uri_string:parse(uri_string:normalize(Url)) of + {error, Reason, _} -> {error, Reason}; - {ok, ParsedUrl} -> + ParsedUrl -> handle_request(Method, Url, ParsedUrl, Headers, ContentType, Body, HTTPOptions, Options, Profile) @@ -312,23 +312,28 @@ store_cookies(SetCookieHeaders, Url) -> store_cookies(SetCookieHeaders, Url, Profile) when is_atom(Profile) orelse is_pid(Profile) -> - try - begin + case uri_string:parse(uri_string:normalize(Url)) of + {error, Bad, _} -> + {error, {parse_failed, Bad}}; + URI -> + Scheme = scheme_to_atom(maps:get(scheme, URI, '')), + Host = maps:get(host, URI, ""), + Port = maps:get(port, URI, default_port(Scheme)), + Path = maps:get(path, URI, ""), %% Since the Address part is not actually used %% by the manager when storing cookies, we dont %% care about ipv6-host-with-brackets. - {ok, {_, _, Host, Port, Path, _}} = uri_parse(Url), Address = {Host, Port}, ProfileName = profile_name(Profile), Cookies = httpc_cookie:cookies(SetCookieHeaders, Path, Host), httpc_manager:store_cookies(Cookies, Address, ProfileName), ok - end - catch - error:{badmatch, Bad} -> - {error, {parse_failed, Bad}} end. +default_port(http) -> + 80; +default_port(https) -> + 443. %%-------------------------------------------------------------------------- %% cookie_header(Url) -> Header | {error, Reason} @@ -495,7 +500,7 @@ service_info(Pid) -> %%% Internal functions %%%======================================================================== handle_request(Method, Url, - {Scheme, UserInfo, Host, Port, Path, Query}, + URI, Headers0, ContentType, Body0, HTTPOptions0, Options0, Profile) -> @@ -520,37 +525,40 @@ handle_request(Method, Url, throw({error, {bad_body, Body0}}) end, - HTTPOptions = http_options(HTTPOptions0), - Options = request_options(Options0), - Sync = proplists:get_value(sync, Options), - Stream = proplists:get_value(stream, Options), - Host2 = http_request:normalize_host(Scheme, Host, Port), - HeadersRecord = header_record(NewHeaders, Host2, HTTPOptions), - Receiver = proplists:get_value(receiver, Options), - SocketOpts = proplists:get_value(socket_opts, Options), - BracketedHost = proplists:get_value(ipv6_host_with_brackets, - Options), - MaybeEscPath = maybe_encode_uri(HTTPOptions, Path), - MaybeEscQuery = maybe_encode_uri(HTTPOptions, Query), - AbsUri = maybe_encode_uri(HTTPOptions, Url), + HTTPOptions = http_options(HTTPOptions0), + Options = request_options(Options0), + Sync = proplists:get_value(sync, Options), + Stream = proplists:get_value(stream, Options), + Receiver = proplists:get_value(receiver, Options), + SocketOpts = proplists:get_value(socket_opts, Options), + BracketedHost = proplists:get_value(ipv6_host_with_brackets, + Options), + + Scheme = scheme_to_atom(maps:get(scheme, URI, '')), + Userinfo = maps:get(userinfo, URI, ""), + Host = http_util:maybe_add_brackets(maps:get(host, URI, ""), BracketedHost), + Port = maps:get(port, URI, default_port(Scheme)), + Host2 = http_request:normalize_host(Scheme, Host, Port), + Path = maps:get(path, URI, ""), + Query = add_question_mark(maps:get(query, URI, "")), + HeadersRecord = header_record(NewHeaders, Host2, HTTPOptions), Request = #request{from = Receiver, - scheme = Scheme, - address = {host_address(Host, BracketedHost), Port}, - path = MaybeEscPath, - pquery = MaybeEscQuery, + scheme = Scheme, + address = {Host, Port}, + path = Path, + pquery = Query, method = Method, headers = HeadersRecord, content = {ContentType, Body}, settings = HTTPOptions, - abs_uri = AbsUri, - userinfo = UserInfo, + abs_uri = Url, + userinfo = Userinfo, stream = Stream, headers_as_is = headers_as_is(Headers0, Options), socket_opts = SocketOpts, started = Started, ipv6_host_with_brackets = BracketedHost}, - case httpc_manager:request(Request, profile_name(Profile)) of {ok, RequestId} -> handle_answer(RequestId, Sync, Options); @@ -565,14 +573,31 @@ handle_request(Method, Url, Error end. + +add_question_mark(<<>>) -> + <<>>; +add_question_mark([]) -> + []; +add_question_mark(Comp) when is_binary(Comp) -> + <<$?, Comp/binary>>; +add_question_mark(Comp) when is_list(Comp) -> + [$?|Comp]. + + +scheme_to_atom("http") -> + http; +scheme_to_atom("https") -> + https; +scheme_to_atom('') -> + ''; +scheme_to_atom(Scheme) -> + throw({error, {bad_scheme, Scheme}}). + + ensure_chunked_encoding(Hdrs) -> Key = "transfer-encoding", lists:keystore(Key, 1, Hdrs, {Key, "chunked"}). -maybe_encode_uri(#http_options{url_encode = true}, URI) -> - http_uri:encode(URI); -maybe_encode_uri(_, URI) -> - URI. mk_chunkify_fun(ProcessBody) -> fun(eof_body) -> @@ -1190,17 +1215,6 @@ validate_headers(RequestHeaders, _, _) -> %% These functions is just simple wrappers to parse specifically HTTP URIs %%-------------------------------------------------------------------------- -scheme_defaults() -> - [{http, 80}, {https, 443}]. - -uri_parse(URI) -> - http_uri:parse(URI, [{scheme_defaults, scheme_defaults()}]). - -uri_parse(URI, Opts) -> - http_uri:parse(URI, [{scheme_defaults, scheme_defaults()} | Opts]). - - -%%-------------------------------------------------------------------------- header_parse([]) -> ok; header_parse([{Field, Value}|T]) when is_list(Field), is_list(Value) -> @@ -1221,10 +1235,6 @@ child_name(Pid, [{Name, Pid} | _]) -> child_name(Pid, [_ | Children]) -> child_name(Pid, Children). -host_address(Host, false) -> - Host; -host_address(Host, true) -> - string:strip(string:strip(Host, right, $]), left, $[). check_body_gen({Fun, _}) when is_function(Fun) -> ok; diff --git a/lib/inets/src/http_client/httpc_handler.erl b/lib/inets/src/http_client/httpc_handler.erl index 6907bf5262..1482f4f922 100644 --- a/lib/inets/src/http_client/httpc_handler.erl +++ b/lib/inets/src/http_client/httpc_handler.erl @@ -109,7 +109,7 @@ start_link(Parent, Request, Options, ProfileName) -> %% to be called by the httpc manager process. %%-------------------------------------------------------------------- send(Request, Pid) -> - call(Request, Pid, 5000). + call(Request, Pid). %%-------------------------------------------------------------------- @@ -712,12 +712,16 @@ do_handle_info({'EXIT', _, _}, State = #state{request = undefined}) -> do_handle_info({'EXIT', _, _}, State) -> {noreply, State#state{status = close}}. - call(Msg, Pid) -> - call(Msg, Pid, infinity). - -call(Msg, Pid, Timeout) -> - gen_server:call(Pid, Msg, Timeout). + try gen_server:call(Pid, Msg) + catch + exit:{noproc, _} -> + {error, closed}; + exit:{normal, _} -> + {error, closed}; + exit:{{shutdown, _},_} -> + {error, closed} + end. cast(Msg, Pid) -> gen_server:cast(Pid, Msg). diff --git a/lib/inets/src/http_client/httpc_manager.erl b/lib/inets/src/http_client/httpc_manager.erl index a63864493f..ffdf1603b3 100644 --- a/lib/inets/src/http_client/httpc_manager.erl +++ b/lib/inets/src/http_client/httpc_manager.erl @@ -849,11 +849,11 @@ pipeline_or_keep_alive(#request{id = Id, from = From} = Request, HandlerPid, #state{handler_db = HandlerDb} = State) -> - case (catch httpc_handler:send(Request, HandlerPid)) of + case httpc_handler:send(Request, HandlerPid) of ok -> HandlerInfo = {Id, HandlerPid, From}, ets:insert(HandlerDb, HandlerInfo); - _ -> % timeout pipelining failed + {error, closed} -> % timeout pipelining failed start_handler(Request, State) end. diff --git a/lib/inets/src/http_client/httpc_response.erl b/lib/inets/src/http_client/httpc_response.erl index 91638f5d2e..58ab9144df 100644 --- a/lib/inets/src/http_client/httpc_response.erl +++ b/lib/inets/src/http_client/httpc_response.erl @@ -190,7 +190,7 @@ parse_status_code(<<?CR, ?LF, Rest/binary>>, StatusCodeStr, MaxHeaderSize, Result, true) -> parse_headers(Rest, [], [], MaxHeaderSize, [" ", list_to_integer(lists:reverse( - string:strip(StatusCodeStr))) + string:trim(StatusCodeStr))) | Result], true); parse_status_code(<<?SP, Rest/binary>>, StatusCodeStr, @@ -377,58 +377,173 @@ status_server_error_50x(Response, Request) -> {stop, {Request#request.id, Msg}}. -redirect(Response = {StatusLine, Headers, Body}, Request) -> +redirect(Response = {_, Headers, _}, Request) -> {_, Data} = format_response(Response), case Headers#http_response_h.location of - undefined -> - transparent(Response, Request); - RedirUrl -> - UrlParseOpts = [{ipv6_host_with_brackets, - Request#request.ipv6_host_with_brackets}], - case uri_parse(RedirUrl, UrlParseOpts) of - {error, no_scheme} when - (Request#request.settings)#http_options.relaxed -> - NewLocation = fix_relative_uri(Request, RedirUrl), - redirect({StatusLine, Headers#http_response_h{ - location = NewLocation}, - Body}, Request); - {error, Reason} -> - {ok, error(Request, Reason), Data}; - %% Automatic redirection - {ok, {Scheme, _, Host, Port, Path, Query}} -> - HostPort = http_request:normalize_host(Scheme, Host, Port), - NewHeaders = - (Request#request.headers)#http_request_h{host = HostPort}, - NewRequest = - Request#request{redircount = - Request#request.redircount+1, - scheme = Scheme, - headers = NewHeaders, - address = {Host,Port}, - path = Path, - pquery = Query, - abs_uri = - atom_to_list(Scheme) ++ "://" ++ - Host ++ ":" ++ - integer_to_list(Port) ++ - Path ++ Query}, - {redirect, NewRequest, Data} - end + undefined -> + transparent(Response, Request); + RedirUrl -> + Brackets = Request#request.ipv6_host_with_brackets, + case uri_string:parse(RedirUrl) of + {error, Reason, _} -> + {ok, error(Request, Reason), Data}; + %% Automatic redirection + URI -> + {Host, Port0} = Request#request.address, + Port = maybe_to_integer(Port0), + Path = Request#request.path, + Scheme = atom_to_list(Request#request.scheme), + Query = Request#request.pquery, + URIMap = resolve_uri(Scheme, Host, Port, Path, Query, URI), + TScheme = list_to_atom(maps:get(scheme, URIMap)), + THost = http_util:maybe_add_brackets(maps:get(host, URIMap), Brackets), + TPort = maps:get(port, URIMap), + TPath = maps:get(path, URIMap), + TQuery = maps:get(query, URIMap, ""), + NewURI = uri_string:normalize( + uri_string:recompose(URIMap)), + HostPort = http_request:normalize_host(TScheme, THost, TPort), + NewHeaders = + (Request#request.headers)#http_request_h{host = HostPort}, + NewRequest = + Request#request{redircount = + Request#request.redircount+1, + scheme = TScheme, + headers = NewHeaders, + address = {THost,TPort}, + path = TPath, + pquery = TQuery, + abs_uri = NewURI}, + {redirect, NewRequest, Data} + end + end. + + +%% RFC3986 - 5.2.2. Transform References +resolve_uri(Scheme, Host, Port, Path, Query, URI) -> + resolve_uri(Scheme, Host, Port, Path, Query, URI, #{}). +%% +resolve_uri(Scheme, Host, Port, Path, Query, URI, Map0) -> + case maps:is_key(scheme, URI) of + true -> + Port = get_port(URI), + maybe_add_query( + Map0#{scheme => maps:get(scheme, URI), + host => maps:get(host, URI), + port => Port, + path => maps:get(path, URI)}, + URI); + false -> + Map = Map0#{scheme => Scheme}, + resolve_authority(Host, Port, Path, Query, URI, Map) + end. + + +get_port(URI) -> + Scheme = maps:get(scheme, URI), + case maps:get(port, URI, undefined) of + undefined -> + get_default_port(Scheme); + Port -> + Port + end. + + +get_default_port("http") -> + 80; +get_default_port("https") -> + 443. + + +resolve_authority(Host, Port, Path, Query, RelURI, Map) -> + case maps:is_key(host, RelURI) of + true -> + Port = get_port(RelURI), + maybe_add_query( + Map#{host => maps:get(host, RelURI), + port => Port, + path => maps:get(path, RelURI)}, + RelURI); + false -> + Map1 = Map#{host => Host, + port => Port}, + resolve_path(Path, Query, RelURI, Map1) + end. + + +maybe_add_query(Map, RelURI) -> + case maps:is_key(query, RelURI) of + true -> + Map#{query => maps:get(query, RelURI)}; + false -> + Map + end. + + +resolve_path(Path, Query, RelURI, Map) -> + case maps:is_key(path, RelURI) of + true -> + Path1 = calculate_path(Path, maps:get(path, RelURI)), + maybe_add_query( + Map#{path => Path1}, + RelURI); + false -> + Map1 = Map#{path => Path}, + resolve_query(Query, RelURI, Map1) + end. + + +calculate_path(BaseP, RelP) -> + case starts_with_slash(RelP) of + true -> + RelP; + false -> + merge_paths(BaseP, RelP) + end. + + +starts_with_slash([$/|_]) -> + true; +starts_with_slash(<<$/,_/binary>>) -> + true; +starts_with_slash(_) -> + false. + + +%% RFC3986 - 5.2.3. Merge Paths +merge_paths("", RelP) -> + [$/|RelP]; +merge_paths(BaseP, RelP) when is_list(BaseP) -> + do_merge_paths(lists:reverse(BaseP), RelP); +merge_paths(BaseP, RelP) when is_binary(BaseP) -> + B = binary_to_list(BaseP), + R = binary_to_list(RelP), + Res = merge_paths(B, R), + list_to_binary(Res). + + +do_merge_paths([$/|_] = L, RelP) -> + lists:reverse(L) ++ RelP; +do_merge_paths([_|T], RelP) -> + do_merge_paths(T, RelP). + + +resolve_query(Query, RelURI, Map) -> + case maps:is_key(query, RelURI) of + true -> + Map#{query => maps:get(query, RelURI)}; + false -> + Map#{query => Query} end. -maybe_to_list(Port) when is_integer(Port) -> - integer_to_list(Port); -maybe_to_list(Port) when is_list(Port) -> + +maybe_to_integer(Port) when is_list(Port) -> + {Port1, _} = string:to_integer(Port), + Port1; +maybe_to_integer(Port) when is_integer(Port) -> Port. -%%% Guessing that we received a relative URI, fix it to become an absoluteURI -fix_relative_uri(Request, RedirUrl) -> - {Server, Port0} = Request#request.address, - Port = maybe_to_list(Port0), - Path = Request#request.path, - atom_to_list(Request#request.scheme) ++ "://" ++ Server ++ ":" ++ Port - ++ Path ++ RedirUrl. - + error(#request{id = Id}, Reason) -> {Id, {error, Reason}}. @@ -478,18 +593,3 @@ format_response({StatusLine, Headers, Body}) -> {Body, <<>>} end, {{StatusLine, http_response:header_list(Headers), NewBody}, Data}. - -%%-------------------------------------------------------------------------- -%% These functions is just simple wrappers to parse specifically HTTP URIs -%%-------------------------------------------------------------------------- - -scheme_defaults() -> - [{http, 80}, {https, 443}]. - -uri_parse(URI, Opts) -> - http_uri:parse(URI, [{scheme_defaults, scheme_defaults()} | Opts]). - - -%%-------------------------------------------------------------------------- - - diff --git a/lib/inets/src/http_lib/http_util.erl b/lib/inets/src/http_lib/http_util.erl index 487d04f7aa..5577b00cc8 100644 --- a/lib/inets/src/http_lib/http_util.erl +++ b/lib/inets/src/http_lib/http_util.erl @@ -27,7 +27,8 @@ convert_month/1, is_hostname/1, timestamp/0, timeout/2, - html_encode/1 + html_encode/1, + maybe_add_brackets/2 ]). @@ -194,6 +195,24 @@ html_encode(Chars) -> lists:append([char_to_html_entity(Char, Reserved) || Char <- Chars]). +maybe_add_brackets(Addr, false) -> + Addr; +maybe_add_brackets(Addr, true) when is_list(Addr) -> + case is_ipv6_address(Addr) of + true -> + [$[|Addr] ++ "]"; + false -> + Addr + end; +maybe_add_brackets(Addr, true) when is_binary(Addr) -> + case is_ipv6_address(Addr) of + true -> + <<$[,Addr/binary,$]>>; + false -> + Addr + end. + + %%%======================================================================== %%% Internal functions %%%======================================================================== @@ -205,3 +224,14 @@ char_to_html_entity(Char, Reserved) -> false -> [Char] end. + +is_ipv6_address(Addr) when is_binary(Addr) -> + B = binary_to_list(Addr), + is_ipv6_address(B); +is_ipv6_address(Addr) when is_list(Addr) -> + case inet:parse_ipv6strict_address(Addr) of + {ok, _ } -> + true; + {error, _} -> + false + end. diff --git a/lib/inets/test/httpc_SUITE.erl b/lib/inets/test/httpc_SUITE.erl index cc166d522e..e0e0c6b6e5 100644 --- a/lib/inets/test/httpc_SUITE.erl +++ b/lib/inets/test/httpc_SUITE.erl @@ -58,7 +58,7 @@ all() -> groups() -> [ {http, [], real_requests()}, - {sim_http, [], only_simulated()}, + {sim_http, [], only_simulated() ++ [process_leak_on_keepalive]}, {https, [], real_requests()}, {sim_https, [], only_simulated()}, {misc, [], misc()} @@ -68,6 +68,7 @@ real_requests()-> [ head, get, + get_query_string, post, delete, post_stream, @@ -119,7 +120,6 @@ only_simulated() -> empty_response_header, remote_socket_close, remote_socket_close_async, - process_leak_on_keepalive, transfer_encoding, transfer_encoding_identity, redirect_loop, @@ -128,6 +128,7 @@ only_simulated() -> redirect_found, redirect_see_other, redirect_temporary_redirect, + redirect_relative_uri, port_in_host_header, redirect_port_in_host_header, relaxed, @@ -244,6 +245,15 @@ get(Config) when is_list(Config) -> {ok, {{_,200,_}, [_ | _], BinBody}} = httpc:request(get, Request, [], [{body_format, binary}]), true = is_binary(BinBody). + + +get_query_string() -> + [{doc, "Test http get request with query string against local server"}]. +get_query_string(Config) when is_list(Config) -> + Request = {url(group_name(Config), "/dummy.html?foo=bar", Config), []}, + {ok, {{_,200,_}, [_ | _], Body = [_ | _]}} = httpc:request(get, Request, [], []), + + inets_test_lib:check_body(Body). %%-------------------------------------------------------------------- post() -> [{"Test http post request against local server. We do in this case " @@ -577,7 +587,26 @@ redirect_temporary_redirect(Config) when is_list(Config) -> {ok, {{_,200,_}, [_ | _], [_|_]}} = httpc:request(post, {URL307, [],"text/plain", "foobar"}, [], []). +%%------------------------------------------------------------------------- +redirect_relative_uri() -> + [{doc, "The server SHOULD generate a Location header field in the response " + "containing a preferred URI reference for the new permanent URI. The user " + "agent MAY use the Location field value for automatic redirection. The server's " + "response payload usually contains a short hypertext note with a " + "hyperlink to the new URI(s)."}]. +redirect_relative_uri(Config) when is_list(Config) -> + + URL301 = url(group_name(Config), "/301_rel_uri.html", Config), + + {ok, {{_,200,_}, [_ | _], [_|_]}} + = httpc:request(get, {URL301, []}, [], []), + {ok, {{_,200,_}, [_ | _], []}} + = httpc:request(head, {URL301, []}, [], []), + + {ok, {{_,200,_}, [_ | _], [_|_]}} + = httpc:request(post, {URL301, [],"text/plain", "foobar"}, + [], []). %%------------------------------------------------------------------------- redirect_loop() -> [{"doc, Test redirect loop detection"}]. @@ -1713,6 +1742,9 @@ content_length(["content-length:" ++ Value | _]) -> content_length([_Head | Tail]) -> content_length(Tail). +handle_uri("GET","/dummy.html?foo=bar",_,_,_,_) -> + "HTTP/1.0 200 OK\r\n\r\nTEST"; + handle_uri(_,"/just_close.html",_,_,_,_) -> close; handle_uri(_,"/no_content.html",_,_,_,_) -> @@ -1778,6 +1810,23 @@ handle_uri(_,"/301.html",Port,_,Socket,_) -> "Content-Length:" ++ integer_to_list(length(Body)) ++ "\r\n\r\n" ++ Body; + +handle_uri("HEAD","/301_rel_uri.html",_,_,_,_) -> + NewUri = "/dummy.html", + "HTTP/1.1 301 Moved Permanently\r\n" ++ + "Location:" ++ NewUri ++ "\r\n" ++ + "Content-Length:0\r\n\r\n"; + +handle_uri(_,"/301_rel_uri.html",_,_,_,_) -> + NewUri = "/dummy.html", + Body = "<HTML><BODY><a href=" ++ NewUri ++ + ">New place</a></BODY></HTML>", + "HTTP/1.1 301 Moved Permanently\r\n" ++ + "Location:" ++ NewUri ++ "\r\n" ++ + "Content-Length:" ++ integer_to_list(length(Body)) + ++ "\r\n\r\n" ++ Body; + + handle_uri("HEAD","/302.html",Port,_,Socket,_) -> NewUri = url_start(Socket) ++ integer_to_list(Port) ++ "/dummy.html", diff --git a/lib/inets/test/httpd_basic_SUITE.erl b/lib/inets/test/httpd_basic_SUITE.erl index 931cd076cc..94d22ea76c 100644 --- a/lib/inets/test/httpd_basic_SUITE.erl +++ b/lib/inets/test/httpd_basic_SUITE.erl @@ -303,7 +303,10 @@ escaped_url_in_error_body(Config) when is_list(Config) -> %% Ask for a non-existing page(1) Path = "/<b>this_is_bold<b>", HTMLEncodedPath = http_util:html_encode(Path), - URL2 = URL1 ++ Path, + URL2 = uri_string:recompose(#{scheme => "http", + host => "localhost", + port => Port, + path => Path}), {ok, {404, Body3}} = httpc:request(get, {URL2, []}, [{url_encode, true}, {version, "HTTP/1.0"}], diff --git a/lib/jinterface/doc/src/Makefile b/lib/jinterface/doc/src/Makefile index 7eb0e20b4d..37de0a35c5 100644 --- a/lib/jinterface/doc/src/Makefile +++ b/lib/jinterface/doc/src/Makefile @@ -46,12 +46,11 @@ XML_PART_FILES = \ part.xml XML_CHAPTER_FILES = \ notes.xml \ - notes_history.xml \ jinterface_users_guide.xml BOOK_FILES = book.xml -XML_FILES = $(BOOK_FILES) $(XML_APPLICATION_FILES) $(XML_REF3_FILES) \ +XML_FILES = $(BOOK_FILES) $(XML_APP_FILES) $(XML_REF3_FILES) \ $(XML_PART_FILES) $(XML_CHAPTER_FILES) GIF_FILES = diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/Makefile b/lib/jinterface/java_src/com/ericsson/otp/erlang/Makefile index e55cfa62ea..001acfdd2e 100644 --- a/lib/jinterface/java_src/com/ericsson/otp/erlang/Makefile +++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/Makefile @@ -130,7 +130,6 @@ release_spec: opt release_docs_spec: - - +xmllint: # ---------------------------------------------------- diff --git a/lib/kernel/doc/src/Makefile b/lib/kernel/doc/src/Makefile index c9d23ac4c4..0759f362d4 100644 --- a/lib/kernel/doc/src/Makefile +++ b/lib/kernel/doc/src/Makefile @@ -71,7 +71,7 @@ XML_REF4_FILES = app.xml config.xml XML_REF6_FILES = kernel_app.xml XML_PART_FILES = -XML_CHAPTER_FILES = notes.xml notes_history.xml +XML_CHAPTER_FILES = notes.xml BOOK_FILES = book.xml diff --git a/lib/kernel/doc/src/gen_tcp.xml b/lib/kernel/doc/src/gen_tcp.xml index 070782e1f3..e6104b0c76 100644 --- a/lib/kernel/doc/src/gen_tcp.xml +++ b/lib/kernel/doc/src/gen_tcp.xml @@ -51,6 +51,7 @@ server() -> {ok, Sock} = gen_tcp:accept(LSock), {ok, Bin} = do_recv(Sock, []), ok = gen_tcp:close(Sock), + ok = gen_tcp:close(LSock), Bin. do_recv(Sock, Bs) -> @@ -309,9 +310,9 @@ do_recv(Sock, Bs) -> <seealso marker="inet#setopts/2"><c>inet:setopts/2</c></seealso>. </p></item> </taglist> - <p>The returned socket <c><anno>ListenSocket</anno></c> can only be - used in calls to - <seealso marker="#accept/1"><c>accept/1,2</c></seealso>.</p> + <p>The returned socket <c><anno>ListenSocket</anno></c> should be used + in calls to <seealso marker="#accept/1"><c>accept/1,2</c></seealso> to + accept incoming connection requests.</p> <note> <p>The default values for options specified to <c>listen</c> can be affected by the Kernel configuration parameter diff --git a/lib/kernel/src/erts_debug.erl b/lib/kernel/src/erts_debug.erl index 2887014c1c..3456c8511e 100644 --- a/lib/kernel/src/erts_debug.erl +++ b/lib/kernel/src/erts_debug.erl @@ -21,7 +21,7 @@ %% Low-level debugging support. EXPERIMENTAL! --export([size/1,df/1,df/2,df/3,ic/1]). +-export([size/1,df/1,df/2,df/3,dis_to_file/2,ic/1]). %% This module contains the following *experimental* BIFs: %% disassemble/1 @@ -378,6 +378,16 @@ df(Mod, Func, Arity) when is_atom(Mod), is_atom(Func) -> catch _:_ -> {undef,Mod} end. +-spec dis_to_file(module(), file:filename()) -> df_ret(). + +dis_to_file(Mod, Name) when is_atom(Mod) -> + try Mod:module_info(functions) of + Fs0 when is_list(Fs0) -> + Fs = [{Mod,Func,Arity} || {Func,Arity} <- Fs0], + dff(Name, Fs) + catch _:_ -> {undef,Mod} + end. + dff(Name, Fs) -> case file:open(Name, [write,raw,delayed_write]) of {ok,F} -> diff --git a/lib/mnesia/doc/src/Makefile b/lib/mnesia/doc/src/Makefile index da7a9e9516..82fcf66256 100644 --- a/lib/mnesia/doc/src/Makefile +++ b/lib/mnesia/doc/src/Makefile @@ -48,6 +48,7 @@ XML_PART_FILES = \ XML_CHAPTER_FILES = \ Mnesia_chap1.xml \ + Mnesia_overview.xml \ Mnesia_chap2.xml \ Mnesia_chap3.xml \ Mnesia_chap4.xml \ diff --git a/lib/observer/doc/src/Makefile b/lib/observer/doc/src/Makefile index a3b0663041..11bfee1bdb 100644 --- a/lib/observer/doc/src/Makefile +++ b/lib/observer/doc/src/Makefile @@ -48,12 +48,12 @@ XML_PART_FILES = \ part.xml XML_CHAPTER_FILES = \ + introduction_ug.xml \ crashdump_ug.xml \ etop_ug.xml \ observer_ug.xml \ ttb_ug.xml \ - notes.xml \ - notes_history.xml + notes.xml BOOK_FILES = book.xml diff --git a/lib/runtime_tools/doc/src/Makefile b/lib/runtime_tools/doc/src/Makefile index dad229e193..ec19a4ce59 100644 --- a/lib/runtime_tools/doc/src/Makefile +++ b/lib/runtime_tools/doc/src/Makefile @@ -45,7 +45,7 @@ XML_REF3_FILES = dbg.xml dyntrace.xml erts_alloc_config.xml system_information.x XML_REF6_FILES = runtime_tools_app.xml XML_PART_FILES = part.xml -XML_CHAPTER_FILES = notes.xml notes_history.xml LTTng.xml +XML_CHAPTER_FILES = notes.xml LTTng.xml GENERATED_XML_FILES = DTRACE.xml SYSTEMTAP.xml @@ -54,7 +54,8 @@ BOOK_FILES = book.xml XML_FILES = \ $(BOOK_FILES) $(XML_CHAPTER_FILES) \ $(XML_PART_FILES) $(XML_REF3_FILES) \ - $(XML_REF6_FILES) $(XML_APPLICATION_FILES) + $(XML_REF6_FILES) $(XML_APPLICATION_FILES) \ + $(GENERATED_XML_FILES) GIF_FILES = @@ -89,7 +90,6 @@ SPECS_FLAGS = -I../../include -I../../../kernel/src # ---------------------------------------------------- # Targets # ---------------------------------------------------- -$(XML_FILES): $(GENERATED_XML_FILES) %.xml: $(ERL_TOP)/HOWTO/%.md $(ERL_TOP)/make/emd2exml $(ERL_TOP)/make/emd2exml $< $@ diff --git a/lib/sasl/doc/src/Makefile b/lib/sasl/doc/src/Makefile index 76746e44e7..baf563ca62 100644 --- a/lib/sasl/doc/src/Makefile +++ b/lib/sasl/doc/src/Makefile @@ -47,8 +47,7 @@ XML_REF6_FILES = sasl_app.xml XML_PART_FILES = part.xml XML_CHAPTER_FILES = sasl_intro.xml \ error_logging.xml \ - notes.xml \ - notes_history.xml + notes.xml BOOK_FILES = book.xml diff --git a/lib/ssh/doc/src/Makefile b/lib/ssh/doc/src/Makefile index e066b787f3..f54f5e0708 100644 --- a/lib/ssh/doc/src/Makefile +++ b/lib/ssh/doc/src/Makefile @@ -52,9 +52,9 @@ XML_PART_FILES = \ usersguide.xml XML_CHAPTER_FILES = notes.xml \ introduction.xml \ - ssh_protocol.xml \ using_ssh.xml \ configure_algos.xml +# ssh_protocol.xml \ BOOK_FILES = book.xml diff --git a/lib/ssh/doc/src/notes.xml b/lib/ssh/doc/src/notes.xml index ef3e94a1e1..c9e153f30c 100644 --- a/lib/ssh/doc/src/notes.xml +++ b/lib/ssh/doc/src/notes.xml @@ -30,12 +30,37 @@ <file>notes.xml</file> </header> -<section><title>Ssh 4.6.1</title> +<section><title>Ssh 4.6.2</title> <section><title>Fixed Bugs and Malfunctions</title> <list> <item> <p> + Trailing white space was removed at end of the + hello-string. This caused interoperability problems with + some other ssh-implementations (e.g OpenSSH 7.3p1 on + Solaris 11)</p> + <p> + Own Id: OTP-14763 Aux Id: ERIERL-74 </p> + </item> + <item> + <p> + Fixes that tcp connections that was immediately closed + (SYN, SYNACK, ACK, RST) by a client could be left in a + zombie state.</p> + <p> + Own Id: OTP-14778 Aux Id: ERIERL-104 </p> + </item> + </list> + </section> + +</section> + +<section><title>Ssh 4.6.1</title> + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> Fixed broken printout</p> <p> Own Id: OTP-14645</p> diff --git a/lib/ssh/src/ssh.hrl b/lib/ssh/src/ssh.hrl index d6d412db43..3dee1c5521 100644 --- a/lib/ssh/src/ssh.hrl +++ b/lib/ssh/src/ssh.hrl @@ -63,8 +63,8 @@ -define(uint16(X), << ?UINT16(X) >> ). -define(uint32(X), << ?UINT32(X) >> ). -define(uint64(X), << ?UINT64(X) >> ). --define(string(X), << ?STRING(list_to_binary(X)) >> ). -define(string_utf8(X), << ?STRING(unicode:characters_to_binary(X)) >> ). +-define(string(X), ?string_utf8(X)). -define(binary(X), << ?STRING(X) >>). %% Cipher details diff --git a/lib/ssh/src/ssh_connection_handler.erl b/lib/ssh/src/ssh_connection_handler.erl index 802bf62570..0ca960ef96 100644 --- a/lib/ssh/src/ssh_connection_handler.erl +++ b/lib/ssh/src/ssh_connection_handler.erl @@ -325,23 +325,32 @@ renegotiate_data(ConnectionHandler) -> %% Internal process state %%==================================================================== -record(data, { - starter :: pid(), + starter :: pid() + | undefined, auth_user :: string() | undefined, connection_state :: #connection{}, - latest_channel_id = 0 :: non_neg_integer(), + latest_channel_id = 0 :: non_neg_integer() + | undefined, idle_timer_ref :: undefined | infinity | reference(), idle_timer_value = infinity :: infinity | pos_integer(), - transport_protocol :: atom(), % ex: tcp - transport_cb :: atom(), % ex: gen_tcp - transport_close_tag :: atom(), % ex: tcp_closed - ssh_params :: #ssh{}, - socket :: inet:socket(), - decrypted_data_buffer = <<>> :: binary(), - encrypted_data_buffer = <<>> :: binary(), + transport_protocol :: atom() + | undefined, % ex: tcp + transport_cb :: atom() + | undefined, % ex: gen_tcp + transport_close_tag :: atom() + | undefined, % ex: tcp_closed + ssh_params :: #ssh{} + | undefined, + socket :: inet:socket() + | undefined, + decrypted_data_buffer = <<>> :: binary() + | undefined, + encrypted_data_buffer = <<>> :: binary() + | undefined, undecrypted_packet_length :: undefined | non_neg_integer(), key_exchange_init_msg :: #ssh_msg_kexinit{} | undefined, @@ -370,16 +379,17 @@ init_connection_handler(Role, Socket, Opts) -> StartState, D); - {stop, enotconn} -> - %% Handles the abnormal sequence: - %% SYN-> - %% <-SYNACK - %% ACK-> - %% RST-> - exit({shutdown, "TCP connection to server was prematurely closed by the client"}); - - {stop, OtherError} -> - exit({shutdown, {init,OtherError}}) + {stop, Error} -> + Sups = ?GET_INTERNAL_OPT(supervisors, Opts), + C = #connection{system_supervisor = proplists:get_value(system_sup, Sups), + sub_system_supervisor = proplists:get_value(subsystem_sup, Sups), + connection_supervisor = proplists:get_value(connection_sup, Sups) + }, + gen_statem:enter_loop(?MODULE, + [], + {init_error,Error}, + #data{connection_state=C, + socket=Socket}) end. @@ -531,6 +541,21 @@ renegotiation(_) -> false. callback_mode() -> handle_event_function. + +handle_event(_, _Event, {init_error,Error}, _) -> + case Error of + enotconn -> + %% Handles the abnormal sequence: + %% SYN-> + %% <-SYNACK + %% ACK-> + %% RST-> + {stop, {shutdown,"TCP connenction to server was prematurely closed by the client"}}; + + OtherError -> + {stop, {shutdown,{init,OtherError}}} + end; + %%% ######## {hello, client|server} #### %% The very first event that is sent when the we are set as controlling process of Socket handle_event(_, socket_control, {hello,_}, D) -> diff --git a/lib/ssh/src/ssh_transport.erl b/lib/ssh/src/ssh_transport.erl index 892db6b64f..90a94a7e86 100644 --- a/lib/ssh/src/ssh_transport.erl +++ b/lib/ssh/src/ssh_transport.erl @@ -2027,12 +2027,6 @@ same(Algs) -> [{client2server,Algs}, {server2client,Algs}]. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% trim_tail(Str) -> - lists:reverse(trim_head(lists:reverse(Str))). - -trim_head([$\s|Cs]) -> trim_head(Cs); -trim_head([$\t|Cs]) -> trim_head(Cs); -trim_head([$\n|Cs]) -> trim_head(Cs); -trim_head([$\r|Cs]) -> trim_head(Cs); -trim_head(Cs) -> Cs. - - + lists:takewhile(fun(C) -> + C=/=$\r andalso C=/=$\n + end, Str). diff --git a/lib/ssh/test/ssh_engine_SUITE.erl b/lib/ssh/test/ssh_engine_SUITE.erl index 035446932b..daf93891e9 100644 --- a/lib/ssh/test/ssh_engine_SUITE.erl +++ b/lib/ssh/test/ssh_engine_SUITE.erl @@ -57,7 +57,6 @@ init_per_suite(Config) -> ?CHECK_CRYPTO( case load_engine() of {ok,E} -> - ssh_dbg:messages(fun ct:pal/2), [{engine,E}|Config]; {error, notsup} -> {skip, "Engine not supported on this OpenSSL version"}; diff --git a/lib/ssh/test/ssh_options_SUITE.erl b/lib/ssh/test/ssh_options_SUITE.erl index 8b454ffe5d..144ec7f8fd 100644 --- a/lib/ssh/test/ssh_options_SUITE.erl +++ b/lib/ssh/test/ssh_options_SUITE.erl @@ -36,7 +36,9 @@ id_string_no_opt_client/1, id_string_no_opt_server/1, id_string_own_string_client/1, + id_string_own_string_client_trail_space/1, id_string_own_string_server/1, + id_string_own_string_server_trail_space/1, id_string_random_client/1, id_string_random_server/1, max_sessions_sftp_start_channel_parallel/1, @@ -116,9 +118,11 @@ all() -> hostkey_fingerprint_check_list, id_string_no_opt_client, id_string_own_string_client, + id_string_own_string_client_trail_space, id_string_random_client, id_string_no_opt_server, id_string_own_string_server, + id_string_own_string_server_trail_space, id_string_random_server, {group, hardening_tests} ]. @@ -1035,6 +1039,19 @@ id_string_own_string_client(Config) -> end. %%-------------------------------------------------------------------- +id_string_own_string_client_trail_space(Config) -> + {Server, _Host, Port} = fake_daemon(Config), + {error,_} = ssh:connect("localhost", Port, [{id_string,"Pelle "}], 1000), + receive + {id,Server,"SSH-2.0-Pelle \r\n"} -> + ok; + {id,Server,Other} -> + ct:fail("Unexpected id: ~s.",[Other]) + after 5000 -> + {fail,timeout} + end. + +%%-------------------------------------------------------------------- id_string_random_client(Config) -> {Server, _Host, Port} = fake_daemon(Config), {error,_} = ssh:connect("localhost", Port, [{id_string,random}], 1000), @@ -1063,6 +1080,12 @@ id_string_own_string_server(Config) -> {ok,"SSH-2.0-Olle\r\n"} = gen_tcp:recv(S1, 0, 2000). %%-------------------------------------------------------------------- +id_string_own_string_server_trail_space(Config) -> + {_Server, Host, Port} = ssh_test_lib:std_daemon(Config, [{id_string,"Olle "}]), + {ok,S1}=ssh_test_lib:gen_tcp_connect(Host,Port,[{active,false},{packet,line}]), + {ok,"SSH-2.0-Olle \r\n"} = gen_tcp:recv(S1, 0, 2000). + +%%-------------------------------------------------------------------- id_string_random_server(Config) -> {_Server, Host, Port} = ssh_test_lib:std_daemon(Config, [{id_string,random}]), {ok,S1}=ssh_test_lib:gen_tcp_connect(Host,Port,[{active,false},{packet,line}]), diff --git a/lib/ssh/vsn.mk b/lib/ssh/vsn.mk index 5154658e8a..59775d2d7f 100644 --- a/lib/ssh/vsn.mk +++ b/lib/ssh/vsn.mk @@ -1,5 +1,5 @@ #-*-makefile-*- ; force emacs to enter makefile-mode -SSH_VSN = 4.6.1 +SSH_VSN = 4.6.2 APP_VSN = "ssh-$(SSH_VSN)" diff --git a/lib/ssl/doc/src/Makefile b/lib/ssl/doc/src/Makefile index d54ef47461..f9128e8e45 100644 --- a/lib/ssl/doc/src/Makefile +++ b/lib/ssl/doc/src/Makefile @@ -43,9 +43,9 @@ XML_REF6_FILES = ssl_app.xml XML_PART_FILES = usersguide.xml XML_CHAPTER_FILES = \ + ssl_introduction.xml \ ssl_protocol.xml \ using_ssl.xml \ - pkix_certs.xml \ ssl_distribution.xml \ notes.xml diff --git a/lib/ssl/doc/src/pkix_certs.xml b/lib/ssl/doc/src/pkix_certs.xml deleted file mode 100644 index f365acef4d..0000000000 --- a/lib/ssl/doc/src/pkix_certs.xml +++ /dev/null @@ -1,59 +0,0 @@ -<?xml version="1.0" encoding="utf-8" ?> -<!DOCTYPE chapter SYSTEM "chapter.dtd"> - -<chapter> - <header> - <copyright> - <year>2003</year><year>2016</year> - <holder>Ericsson AB. All Rights Reserved.</holder> - </copyright> - <legalnotice> - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. - - </legalnotice> - - <title>PKIX Certificates</title> - <prepared>UAB/F/P Peter Högfeldt</prepared> - <docno></docno> - <date>2003-06-09</date> - <rev>A</rev> - <file>pkix_certs.xml</file> - </header> - - <section> - <title>Introduction to Certificates</title> - <p>Certificates were originally defined by ITU (CCITT) and the latest - definitions are described in <cite id="X.509"></cite>, but those definitions - are (as always) not working. - </p> - <p>Working certificate definitions for the Internet Community are found - in the the PKIX RFCs <cite id="rfc3279"></cite> and <cite id="rfc3280"></cite>. - The parsing of certificates in the Erlang/OTP SSL application is - based on those RFCS. - </p> - <p>Certificates are defined in terms of ASN.1 (<cite id="X.680"></cite>). - For an introduction to ASN.1 see <url href="http://asn1.elibel.tm.fr/">ASN.1 Information Site</url>. - </p> - </section> - - <section> - <title>PKIX Certificates</title> - <p>Certificate handling is now handled by the <c>public_key</c> application.</p> - <p> - DER encoded certificates returned by <c>ssl:peercert/1</c> can for example - be decoded by the <c>public_key:pkix_decode_cert/2</c> function. - </p> - </section> -</chapter> - - diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml index ac5a69c69b..8fcda78ed5 100644 --- a/lib/ssl/doc/src/ssl.xml +++ b/lib/ssl/doc/src/ssl.xml @@ -203,7 +203,9 @@ <tag><c>{certfile, path()}</c></tag> <item><p>Path to a file containing the user certificate.</p></item> - <tag><c>{key, {'RSAPrivateKey'| 'DSAPrivateKey' | 'ECPrivateKey' + <tag> + <marker id="key_option_def"/> + <c>{key, {'RSAPrivateKey'| 'DSAPrivateKey' | 'ECPrivateKey' |'PrivateKeyInfo', public_key:der_encoded()} | #{algorithm := rsa | dss | ecdsa, engine := crypto:engine_ref(), key_id := crypto:key_id(), password => crypto:password()}</c></tag> <item><p>The DER-encoded user's private key or a map refering to a crypto diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl index 387d632ef8..eed49ca090 100644 --- a/lib/ssl/src/dtls_connection.erl +++ b/lib/ssl/src/dtls_connection.erl @@ -39,20 +39,18 @@ -export([start_fsm/8, start_link/7, init/1]). %% State transition handling --export([next_record/1, next_event/3, next_event/4]). +-export([next_record/1, next_event/3, next_event/4, handle_common_event/4]). %% Handshake handling --export([renegotiate/2, - reinit_handshake_data/1, - send_handshake/2, queue_handshake/2, queue_change_cipher/2, - select_sni_extension/1, empty_connection_state/2]). +-export([renegotiate/2, send_handshake/2, + queue_handshake/2, queue_change_cipher/2, + reinit_handshake_data/1, select_sni_extension/1, empty_connection_state/2]). %% Alert and close handling -export([encode_alert/3,send_alert/2, close/5, protocol_name/0]). %% Data handling - --export([encode_data/3, passive_receive/2, next_record_if_active/1, handle_common_event/4, +-export([encode_data/3, passive_receive/2, next_record_if_active/1, send/3, socket/5, setopts/3, getopts/3]). %% gen_statem state functions @@ -64,6 +62,9 @@ %%==================================================================== %% Internal application API +%%==================================================================== +%%==================================================================== +%% Setup %%==================================================================== start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker} = Opts, User, {CbModule, _,_, _} = CbInfo, @@ -79,6 +80,220 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker} Error end. +%%-------------------------------------------------------------------- +-spec start_link(atom(), host(), inet:port_number(), port(), list(), pid(), tuple()) -> + {ok, pid()} | ignore | {error, reason()}. +%% +%% Description: Creates a gen_statem process which calls Module:init/1 to +%% initialize. +%%-------------------------------------------------------------------- +start_link(Role, Host, Port, Socket, Options, User, CbInfo) -> + {ok, proc_lib:spawn_link(?MODULE, init, [[Role, Host, Port, Socket, Options, User, CbInfo]])}. + +init([Role, Host, Port, Socket, Options, User, CbInfo]) -> + process_flag(trap_exit, true), + State0 = initial_state(Role, Host, Port, Socket, Options, User, CbInfo), + try + State = ssl_connection:ssl_config(State0#state.ssl_options, Role, State0), + gen_statem:enter_loop(?MODULE, [], init, State) + catch + throw:Error -> + gen_statem:enter_loop(?MODULE, [], error, {Error,State0}) + end. +%%==================================================================== +%% State transition handling +%%==================================================================== +next_record(#state{unprocessed_handshake_events = N} = State) when N > 0 -> + {no_record, State#state{unprocessed_handshake_events = N-1}}; + +next_record(#state{protocol_buffers = + #protocol_buffers{dtls_cipher_texts = [#ssl_tls{epoch = Epoch} = CT | Rest]} + = Buffers, + connection_states = #{current_read := #{epoch := Epoch}} = ConnectionStates} = State) -> + CurrentRead = dtls_record:get_connection_state_by_epoch(Epoch, ConnectionStates, read), + case dtls_record:replay_detect(CT, CurrentRead) of + false -> + decode_cipher_text(State#state{connection_states = ConnectionStates}) ; + true -> + %% Ignore replayed record + next_record(State#state{protocol_buffers = + Buffers#protocol_buffers{dtls_cipher_texts = Rest}, + connection_states = ConnectionStates}) + end; +next_record(#state{protocol_buffers = + #protocol_buffers{dtls_cipher_texts = [#ssl_tls{epoch = Epoch} | Rest]} + = Buffers, + connection_states = #{current_read := #{epoch := CurrentEpoch}} = ConnectionStates} = State) + when Epoch > CurrentEpoch -> + %% TODO Buffer later Epoch message, drop it for now + next_record(State#state{protocol_buffers = + Buffers#protocol_buffers{dtls_cipher_texts = Rest}, + connection_states = ConnectionStates}); +next_record(#state{protocol_buffers = + #protocol_buffers{dtls_cipher_texts = [ _ | Rest]} + = Buffers, + connection_states = ConnectionStates} = State) -> + %% Drop old epoch message + next_record(State#state{protocol_buffers = + Buffers#protocol_buffers{dtls_cipher_texts = Rest}, + connection_states = ConnectionStates}); +next_record(#state{role = server, + socket = {Listener, {Client, _}}, + transport_cb = gen_udp} = State) -> + dtls_udp_listener:active_once(Listener, Client, self()), + {no_record, State}; +next_record(#state{role = client, + socket = {_Server, Socket}, + transport_cb = Transport} = State) -> + dtls_socket:setopts(Transport, Socket, [{active,once}]), + {no_record, State}; +next_record(State) -> + {no_record, State}. + +next_event(StateName, Record, State) -> + next_event(StateName, Record, State, []). + +next_event(connection = StateName, no_record, + #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> + case next_record_if_active(State0) of + {no_record, State} -> + ssl_connection:hibernate_after(StateName, State, Actions); + {#ssl_tls{epoch = CurrentEpoch, + type = ?HANDSHAKE, + version = Version} = Record, State1} -> + State = dtls_version(StateName, Version, State1), + {next_state, StateName, State, + [{next_event, internal, {protocol_record, Record}} | Actions]}; + {#ssl_tls{epoch = CurrentEpoch} = Record, State} -> + {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]}; + {#ssl_tls{epoch = Epoch, + type = ?HANDSHAKE, + version = _Version}, State1} = _Record when Epoch == CurrentEpoch-1 -> + {State2, MoreActions} = send_handshake_flight(State1, CurrentEpoch), + {NextRecord, State} = next_record(State2), + next_event(StateName, NextRecord, State, Actions ++ MoreActions); + %% From FLIGHT perspective CHANGE_CIPHER_SPEC is treated as a handshake + {#ssl_tls{epoch = Epoch, + type = ?CHANGE_CIPHER_SPEC, + version = _Version}, State1} = _Record when Epoch == CurrentEpoch-1 -> + {State2, MoreActions} = send_handshake_flight(State1, CurrentEpoch), + {NextRecord, State} = next_record(State2), + next_event(StateName, NextRecord, State, Actions ++ MoreActions); + {#ssl_tls{epoch = _Epoch, + version = _Version}, State1} -> + %% TODO maybe buffer later epoch + {Record, State} = next_record(State1), + next_event(StateName, Record, State, Actions); + {#alert{} = Alert, State} -> + {next_state, StateName, State, [{next_event, internal, Alert} | Actions]} + end; +next_event(connection = StateName, Record, + #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> + case Record of + #ssl_tls{epoch = CurrentEpoch, + type = ?HANDSHAKE, + version = Version} = Record -> + State = dtls_version(StateName, Version, State0), + {next_state, StateName, State, + [{next_event, internal, {protocol_record, Record}} | Actions]}; + #ssl_tls{epoch = CurrentEpoch} -> + {next_state, StateName, State0, [{next_event, internal, {protocol_record, Record}} | Actions]}; + #ssl_tls{epoch = Epoch, + type = ?HANDSHAKE, + version = _Version} when Epoch == CurrentEpoch-1 -> + {State1, MoreActions} = send_handshake_flight(State0, CurrentEpoch), + {NextRecord, State} = next_record(State1), + next_event(StateName, NextRecord, State, Actions ++ MoreActions); + %% From FLIGHT perspective CHANGE_CIPHER_SPEC is treated as a handshake + #ssl_tls{epoch = Epoch, + type = ?CHANGE_CIPHER_SPEC, + version = _Version} when Epoch == CurrentEpoch-1 -> + {State1, MoreActions} = send_handshake_flight(State0, CurrentEpoch), + {NextRecord, State} = next_record(State1), + next_event(StateName, NextRecord, State, Actions ++ MoreActions); + _ -> + next_event(StateName, no_record, State0, Actions) + end; +next_event(StateName, Record, + #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> + case Record of + no_record -> + {next_state, StateName, State0, Actions}; + #ssl_tls{epoch = CurrentEpoch, + version = Version} = Record -> + State = dtls_version(StateName, Version, State0), + {next_state, StateName, State, + [{next_event, internal, {protocol_record, Record}} | Actions]}; + #ssl_tls{epoch = _Epoch, + version = _Version} = _Record -> + %% TODO maybe buffer later epoch + {Record, State} = next_record(State0), + next_event(StateName, Record, State, Actions); + #alert{} = Alert -> + {next_state, StateName, State0, [{next_event, internal, Alert} | Actions]} + end. +handle_call(Event, From, StateName, State) -> + ssl_connection:handle_call(Event, From, StateName, State, ?MODULE). + +handle_common_event(internal, #alert{} = Alert, StateName, + #state{negotiated_version = Version} = State) -> + handle_own_alert(Alert, Version, StateName, State); +%%% DTLS record protocol level handshake messages +handle_common_event(internal, #ssl_tls{type = ?HANDSHAKE, + fragment = Data}, + StateName, + #state{protocol_buffers = Buffers0, + negotiated_version = Version} = State0) -> + try + case dtls_handshake:get_dtls_handshake(Version, Data, Buffers0) of + {[], Buffers} -> + {Record, State} = next_record(State0#state{protocol_buffers = Buffers}), + next_event(StateName, Record, State); + {Packets, Buffers} -> + State = State0#state{protocol_buffers = Buffers}, + Events = dtls_handshake_events(Packets), + {next_state, StateName, + State#state{unprocessed_handshake_events = unprocessed_events(Events)}, Events} + end + catch throw:#alert{} = Alert -> + handle_own_alert(Alert, Version, StateName, State0) + end; +%%% DTLS record protocol level application data messages +handle_common_event(internal, #ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, StateName, State) -> + {next_state, StateName, State, [{next_event, internal, {application_data, Data}}]}; +%%% DTLS record protocol level change cipher messages +handle_common_event(internal, #ssl_tls{type = ?CHANGE_CIPHER_SPEC, fragment = Data}, StateName, State) -> + {next_state, StateName, State, [{next_event, internal, #change_cipher_spec{type = Data}}]}; +%%% DTLS record protocol level Alert messages +handle_common_event(internal, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, StateName, + #state{negotiated_version = Version} = State) -> + case decode_alerts(EncAlerts) of + Alerts = [_|_] -> + handle_alerts(Alerts, {next_state, StateName, State}); + #alert{} = Alert -> + handle_own_alert(Alert, Version, StateName, State) + end; +%% Ignore unknown TLS record level protocol messages +handle_common_event(internal, #ssl_tls{type = _Unknown}, StateName, State) -> + {next_state, StateName, State}. + +%%==================================================================== +%% Handshake handling +%%==================================================================== + +renegotiate(#state{role = client} = State, Actions) -> + %% Handle same way as if server requested + %% the renegotiation + {next_state, connection, State, + [{next_event, internal, #hello_request{}} | Actions]}; + +renegotiate(#state{role = server} = State0, Actions) -> + HelloRequest = ssl_handshake:hello_request(), + State1 = prepare_flight(State0), + {State2, MoreActions} = send_handshake(HelloRequest, State1), + {Record, State} = next_record(State2), + next_event(hello, Record, State, Actions ++ MoreActions). + send_handshake(Handshake, #state{connection_states = ConnectionStates} = State) -> #{epoch := Epoch} = ssl_record:current_connection_state(ConnectionStates, write), send_handshake_flight(queue_handshake(Handshake, State), Epoch). @@ -104,85 +319,12 @@ queue_handshake(Handshake0, #state{tls_handshake_history = Hist0, next_sequence => Seq +1}, tls_handshake_history = Hist}. - -send_handshake_flight(#state{socket = Socket, - transport_cb = Transport, - flight_buffer = #{handshakes := Flight, - change_cipher_spec := undefined}, - negotiated_version = Version, - connection_states = ConnectionStates0} = State0, Epoch) -> - %% TODO remove hardcoded Max size - {Encoded, ConnectionStates} = - encode_handshake_flight(lists:reverse(Flight), Version, 1400, Epoch, ConnectionStates0), - send(Transport, Socket, Encoded), - {State0#state{connection_states = ConnectionStates}, []}; - -send_handshake_flight(#state{socket = Socket, - transport_cb = Transport, - flight_buffer = #{handshakes := [_|_] = Flight0, - change_cipher_spec := ChangeCipher, - handshakes_after_change_cipher_spec := []}, - negotiated_version = Version, - connection_states = ConnectionStates0} = State0, Epoch) -> - {HsBefore, ConnectionStates1} = - encode_handshake_flight(lists:reverse(Flight0), Version, 1400, Epoch, ConnectionStates0), - {EncChangeCipher, ConnectionStates} = encode_change_cipher(ChangeCipher, Version, Epoch, ConnectionStates1), - - send(Transport, Socket, [HsBefore, EncChangeCipher]), - {State0#state{connection_states = ConnectionStates}, []}; - -send_handshake_flight(#state{socket = Socket, - transport_cb = Transport, - flight_buffer = #{handshakes := [_|_] = Flight0, - change_cipher_spec := ChangeCipher, - handshakes_after_change_cipher_spec := Flight1}, - negotiated_version = Version, - connection_states = ConnectionStates0} = State0, Epoch) -> - {HsBefore, ConnectionStates1} = - encode_handshake_flight(lists:reverse(Flight0), Version, 1400, Epoch-1, ConnectionStates0), - {EncChangeCipher, ConnectionStates2} = - encode_change_cipher(ChangeCipher, Version, Epoch-1, ConnectionStates1), - {HsAfter, ConnectionStates} = - encode_handshake_flight(lists:reverse(Flight1), Version, 1400, Epoch, ConnectionStates2), - send(Transport, Socket, [HsBefore, EncChangeCipher, HsAfter]), - {State0#state{connection_states = ConnectionStates}, []}; - -send_handshake_flight(#state{socket = Socket, - transport_cb = Transport, - flight_buffer = #{handshakes := [], - change_cipher_spec := ChangeCipher, - handshakes_after_change_cipher_spec := Flight1}, - negotiated_version = Version, - connection_states = ConnectionStates0} = State0, Epoch) -> - {EncChangeCipher, ConnectionStates1} = - encode_change_cipher(ChangeCipher, Version, Epoch-1, ConnectionStates0), - {HsAfter, ConnectionStates} = - encode_handshake_flight(lists:reverse(Flight1), Version, 1400, Epoch, ConnectionStates1), - send(Transport, Socket, [EncChangeCipher, HsAfter]), - {State0#state{connection_states = ConnectionStates}, []}. - queue_change_cipher(ChangeCipher, #state{flight_buffer = Flight, connection_states = ConnectionStates0} = State) -> ConnectionStates = dtls_record:next_epoch(ConnectionStates0, write), State#state{flight_buffer = Flight#{change_cipher_spec => ChangeCipher}, connection_states = ConnectionStates}. - -send_alert(Alert, #state{negotiated_version = Version, - socket = Socket, - transport_cb = Transport, - connection_states = ConnectionStates0} = State0) -> - {BinMsg, ConnectionStates} = - encode_alert(Alert, Version, ConnectionStates0), - send(Transport, Socket, BinMsg), - State0#state{connection_states = ConnectionStates}. - -close(downgrade, _,_,_,_) -> - ok; -%% Other -close(_, Socket, Transport, _,_) -> - dtls_socket:close(Transport,Socket). - reinit_handshake_data(#state{protocol_buffers = Buffers} = State) -> State#state{premaster_secret = undefined, public_key_info = undefined, @@ -200,54 +342,81 @@ select_sni_extension(#client_hello{extensions = HelloExtensions}) -> HelloExtensions#hello_extensions.sni; select_sni_extension(_) -> undefined. + empty_connection_state(ConnectionEnd, BeastMitigation) -> Empty = ssl_record:empty_connection_state(ConnectionEnd, BeastMitigation), dtls_record:empty_connection_state(Empty). -socket(Pid, Transport, Socket, Connection, _) -> - dtls_socket:socket(Pid, Transport, Socket, Connection). +%%==================================================================== +%% Alert and close handling +%%==================================================================== +encode_alert(#alert{} = Alert, Version, ConnectionStates) -> + dtls_record:encode_alert_record(Alert, Version, ConnectionStates). -setopts(Transport, Socket, Other) -> - dtls_socket:setopts(Transport, Socket, Other). -getopts(Transport, Socket, Tag) -> - dtls_socket:getopts(Transport, Socket, Tag). +send_alert(Alert, #state{negotiated_version = Version, + socket = Socket, + transport_cb = Transport, + connection_states = ConnectionStates0} = State0) -> + {BinMsg, ConnectionStates} = + encode_alert(Alert, Version, ConnectionStates0), + send(Transport, Socket, BinMsg), + State0#state{connection_states = ConnectionStates}. + +close(downgrade, _,_,_,_) -> + ok; +%% Other +close(_, Socket, Transport, _,_) -> + dtls_socket:close(Transport,Socket). protocol_name() -> "DTLS". %%==================================================================== -%% tls_connection_sup API -%%==================================================================== +%% Data handling +%%==================================================================== -%%-------------------------------------------------------------------- --spec start_link(atom(), host(), inet:port_number(), port(), list(), pid(), tuple()) -> - {ok, pid()} | ignore | {error, reason()}. -%% -%% Description: Creates a gen_fsm process which calls Module:init/1 to -%% initialize. To ensure a synchronized start-up procedure, this function -%% does not return until Module:init/1 has returned. -%%-------------------------------------------------------------------- -start_link(Role, Host, Port, Socket, Options, User, CbInfo) -> - {ok, proc_lib:spawn_link(?MODULE, init, [[Role, Host, Port, Socket, Options, User, CbInfo]])}. +encode_data(Data, Version, ConnectionStates0)-> + dtls_record:encode_data(Data, Version, ConnectionStates0). -init([Role, Host, Port, Socket, Options, User, CbInfo]) -> - process_flag(trap_exit, true), - State0 = initial_state(Role, Host, Port, Socket, Options, User, CbInfo), - try - State = ssl_connection:ssl_config(State0#state.ssl_options, Role, State0), - gen_statem:enter_loop(?MODULE, [], init, State) - catch - throw:Error -> - gen_statem:enter_loop(?MODULE, [], error, {Error,State0}) +passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) -> + case Buffer of + <<>> -> + {Record, State} = next_record(State0), + next_event(StateName, Record, State); + _ -> + {Record, State} = ssl_connection:read_application_data(<<>>, State0), + next_event(StateName, Record, State) end. +next_record_if_active(State = + #state{socket_options = + #socket_options{active = false}}) -> + {no_record ,State}; -callback_mode() -> - [state_functions, state_enter]. +next_record_if_active(State) -> + next_record(State). + +send(Transport, {_, {{_,_}, _} = Socket}, Data) -> + send(Transport, Socket, Data); +send(Transport, Socket, Data) -> + dtls_socket:send(Transport, Socket, Data). + +socket(Pid, Transport, Socket, Connection, _) -> + dtls_socket:socket(Pid, Transport, Socket, Connection). + +setopts(Transport, Socket, Other) -> + dtls_socket:setopts(Transport, Socket, Other). + +getopts(Transport, Socket, Tag) -> + dtls_socket:getopts(Transport, Socket, Tag). %%-------------------------------------------------------------------- %% State functions %%-------------------------------------------------------------------- - +%%-------------------------------------------------------------------- +-spec init(gen_statem:event_type(), + {start, timeout()} | term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- init(enter, _, State) -> {keep_state, State}; init({call, From}, {start, Timeout}, @@ -292,7 +461,12 @@ init({call, _} = Type, Event, #state{role = server} = State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State#state{flight_state = reliable}, ?MODULE); init(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). - + +%%-------------------------------------------------------------------- +-spec error(gen_statem:event_type(), + {start, timeout()} | term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- error(enter, _, State) -> {keep_state, State}; error({call, From}, {start, _Timeout}, {Error, State}) -> @@ -399,6 +573,10 @@ hello(state_timeout, Event, State) -> hello(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). +%%-------------------------------------------------------------------- +-spec abbreviated(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- abbreviated(enter, _, State0) -> {State, Actions} = handle_flight_timer(State0), {keep_state, State, Actions}; @@ -418,7 +596,10 @@ abbreviated(state_timeout, Event, State) -> handle_state_timeout(Event, ?FUNCTION_NAME, State); abbreviated(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). - +%%-------------------------------------------------------------------- +-spec certify(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- certify(enter, _, State0) -> {State, Actions} = handle_flight_timer(State0), {keep_state, State, Actions}; @@ -431,6 +612,10 @@ certify(state_timeout, Event, State) -> certify(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). +%%-------------------------------------------------------------------- +-spec cipher(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- cipher(enter, _, State0) -> {State, Actions} = handle_flight_timer(State0), {keep_state, State, Actions}; @@ -451,6 +636,11 @@ cipher(state_timeout, Event, State) -> cipher(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). +%%-------------------------------------------------------------------- +-spec connection(gen_statem:event_type(), + #hello_request{} | #client_hello{}| term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- connection(enter, _, State) -> {keep_state, State}; connection(info, Event, State) -> @@ -492,136 +682,24 @@ connection(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). %%TODO does this make sense for DTLS ? +%%-------------------------------------------------------------------- +-spec downgrade(gen_statem:event_type(), term(), #state{}) -> + gen_statem:state_function_result(). +%%-------------------------------------------------------------------- downgrade(enter, _, State) -> {keep_state, State}; downgrade(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). %%-------------------------------------------------------------------- -%% Description: This function is called by a gen_fsm when it receives any -%% other message than a synchronous or asynchronous event -%% (or a system message). +%% gen_statem callbacks %%-------------------------------------------------------------------- +callback_mode() -> + [state_functions, state_enter]. -%% raw data from socket, unpack records -handle_info({Protocol, _, _, _, Data}, StateName, - #state{data_tag = Protocol} = State0) -> - case next_dtls_record(Data, State0) of - {Record, State} -> - next_event(StateName, Record, State); - #alert{} = Alert -> - ssl_connection:handle_normal_shutdown(Alert, StateName, State0), - {stop, {shutdown, own_alert}} - end; -handle_info({CloseTag, Socket}, StateName, - #state{socket = Socket, - socket_options = #socket_options{active = Active}, - protocol_buffers = #protocol_buffers{dtls_cipher_texts = CTs}, - close_tag = CloseTag, - negotiated_version = Version} = State) -> - %% Note that as of DTLS 1.2 (TLS 1.1), - %% failure to properly close a connection no longer requires that a - %% session not be resumed. This is a change from DTLS 1.0 to conform - %% with widespread implementation practice. - case (Active == false) andalso (CTs =/= []) of - false -> - case Version of - {254, N} when N =< 253 -> - ok; - _ -> - %% As invalidate_sessions here causes performance issues, - %% we will conform to the widespread implementation - %% practice and go aginst the spec - %%invalidate_session(Role, Host, Port, Session) - ok - end, - ssl_connection:handle_normal_shutdown(?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), StateName, State), - {stop, {shutdown, transport_closed}}; - true -> - %% Fixes non-delivery of final DTLS record in {active, once}. - %% Basically allows the application the opportunity to set {active, once} again - %% and then receive the final message. - next_event(StateName, no_record, State) - end; - -handle_info(new_cookie_secret, StateName, - #state{protocol_specific = #{current_cookie_secret := Secret} = CookieInfo} = State) -> - erlang:send_after(dtls_v1:cookie_timeout(), self(), new_cookie_secret), - {next_state, StateName, State#state{protocol_specific = - CookieInfo#{current_cookie_secret => dtls_v1:cookie_secret(), - previous_cookie_secret => Secret}}}; -handle_info(Msg, StateName, State) -> - ssl_connection:StateName(info, Msg, State, ?MODULE). - -handle_call(Event, From, StateName, State) -> - ssl_connection:handle_call(Event, From, StateName, State, ?MODULE). - -handle_common_event(internal, #alert{} = Alert, StateName, - #state{negotiated_version = Version} = State) -> - handle_own_alert(Alert, Version, StateName, State); -%%% DTLS record protocol level handshake messages -handle_common_event(internal, #ssl_tls{type = ?HANDSHAKE, - fragment = Data}, - StateName, - #state{protocol_buffers = Buffers0, - negotiated_version = Version} = State0) -> - try - case dtls_handshake:get_dtls_handshake(Version, Data, Buffers0) of - {[], Buffers} -> - {Record, State} = next_record(State0#state{protocol_buffers = Buffers}), - next_event(StateName, Record, State); - {Packets, Buffers} -> - State = State0#state{protocol_buffers = Buffers}, - Events = dtls_handshake_events(Packets), - {next_state, StateName, - State#state{unprocessed_handshake_events = unprocessed_events(Events)}, Events} - end - catch throw:#alert{} = Alert -> - handle_own_alert(Alert, Version, StateName, State0) - end; -%%% DTLS record protocol level application data messages -handle_common_event(internal, #ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, StateName, State) -> - {next_state, StateName, State, [{next_event, internal, {application_data, Data}}]}; -%%% DTLS record protocol level change cipher messages -handle_common_event(internal, #ssl_tls{type = ?CHANGE_CIPHER_SPEC, fragment = Data}, StateName, State) -> - {next_state, StateName, State, [{next_event, internal, #change_cipher_spec{type = Data}}]}; -%%% DTLS record protocol level Alert messages -handle_common_event(internal, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, StateName, - #state{negotiated_version = Version} = State) -> - case decode_alerts(EncAlerts) of - Alerts = [_|_] -> - handle_alerts(Alerts, {next_state, StateName, State}); - #alert{} = Alert -> - handle_own_alert(Alert, Version, StateName, State) - end; -%% Ignore unknown TLS record level protocol messages -handle_common_event(internal, #ssl_tls{type = _Unknown}, StateName, State) -> - {next_state, StateName, State}. - -handle_state_timeout(flight_retransmission_timeout, StateName, - #state{flight_state = {retransmit, NextTimeout}} = State0) -> - {State1, Actions} = send_handshake_flight(State0#state{flight_state = {retransmit, NextTimeout}}, - retransmit_epoch(StateName, State0)), - {Record, State} = next_record(State1), - next_event(StateName, Record, State, Actions). - -send(Transport, {_, {{_,_}, _} = Socket}, Data) -> - send(Transport, Socket, Data); -send(Transport, Socket, Data) -> - dtls_socket:send(Transport, Socket, Data). -%%-------------------------------------------------------------------- -%% Description:This function is called by a gen_fsm when it is about -%% to terminate. It should be the opposite of Module:init/1 and do any -%% necessary cleaning up. When it returns, the gen_fsm terminates with -%% Reason. The return value is ignored. -%%-------------------------------------------------------------------- terminate(Reason, StateName, State) -> ssl_connection:terminate(Reason, StateName, State). -%%-------------------------------------------------------------------- -%% code_change(OldVsn, StateName, State, Extra) -> {ok, StateName, NewState} -%% Description: Convert process state when code is changed -%%-------------------------------------------------------------------- code_change(_OldVsn, StateName, State, _Extra) -> {ok, StateName, State}. @@ -631,55 +709,6 @@ format_status(Type, Data) -> %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- -handle_client_hello(#client_hello{client_version = ClientVersion} = Hello, - #state{connection_states = ConnectionStates0, - port = Port, session = #session{own_certificate = Cert} = Session0, - renegotiation = {Renegotiation, _}, - session_cache = Cache, - session_cache_cb = CacheCb, - negotiated_protocol = CurrentProtocol, - key_algorithm = KeyExAlg, - ssl_options = SslOpts} = State0) -> - - case dtls_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb, - ConnectionStates0, Cert, KeyExAlg}, Renegotiation) of - #alert{} = Alert -> - handle_own_alert(Alert, ClientVersion, hello, State0); - {Version, {Type, Session}, - ConnectionStates, Protocol0, ServerHelloExt, HashSign} -> - Protocol = case Protocol0 of - undefined -> CurrentProtocol; - _ -> Protocol0 - end, - - State = prepare_flight(State0#state{connection_states = ConnectionStates, - negotiated_version = Version, - hashsign_algorithm = HashSign, - session = Session, - negotiated_protocol = Protocol}), - - ssl_connection:hello(internal, {common_client_hello, Type, ServerHelloExt}, - State, ?MODULE) - end. - -encode_handshake_flight(Flight, Version, MaxFragmentSize, Epoch, ConnectionStates) -> - Fragments = lists:map(fun(Handshake) -> - dtls_handshake:fragment_handshake(Handshake, MaxFragmentSize) - end, Flight), - dtls_record:encode_handshake(Fragments, Version, Epoch, ConnectionStates). - -encode_change_cipher(#change_cipher_spec{}, Version, Epoch, ConnectionStates) -> - dtls_record:encode_change_cipher_spec(Version, Epoch, ConnectionStates). - -encode_data(Data, Version, ConnectionStates0)-> - dtls_record:encode_data(Data, Version, ConnectionStates0). - -encode_alert(#alert{} = Alert, Version, ConnectionStates) -> - dtls_record:encode_alert_record(Alert, Version, ConnectionStates). - -decode_alerts(Bin) -> - ssl_alert:decode(Bin). - initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, _}, User, {CbModule, DataTag, CloseTag, ErrorTag}) -> #ssl_options{beast_mitigation = BeastMitigation} = SSLOptions, @@ -733,153 +762,10 @@ next_dtls_record(Data, #state{protocol_buffers = #protocol_buffers{ Alert end. -next_record(#state{unprocessed_handshake_events = N} = State) when N > 0 -> - {no_record, State#state{unprocessed_handshake_events = N-1}}; - -next_record(#state{protocol_buffers = - #protocol_buffers{dtls_cipher_texts = [#ssl_tls{epoch = Epoch} = CT | Rest]} - = Buffers, - connection_states = #{current_read := #{epoch := Epoch}} = ConnectionStates} = State) -> - CurrentRead = dtls_record:get_connection_state_by_epoch(Epoch, ConnectionStates, read), - case dtls_record:replay_detect(CT, CurrentRead) of - false -> - decode_cipher_text(State#state{connection_states = ConnectionStates}) ; - true -> - %% Ignore replayed record - next_record(State#state{protocol_buffers = - Buffers#protocol_buffers{dtls_cipher_texts = Rest}, - connection_states = ConnectionStates}) - end; -next_record(#state{protocol_buffers = - #protocol_buffers{dtls_cipher_texts = [#ssl_tls{epoch = Epoch} | Rest]} - = Buffers, - connection_states = #{current_read := #{epoch := CurrentEpoch}} = ConnectionStates} = State) - when Epoch > CurrentEpoch -> - %% TODO Buffer later Epoch message, drop it for now - next_record(State#state{protocol_buffers = - Buffers#protocol_buffers{dtls_cipher_texts = Rest}, - connection_states = ConnectionStates}); -next_record(#state{protocol_buffers = - #protocol_buffers{dtls_cipher_texts = [ _ | Rest]} - = Buffers, - connection_states = ConnectionStates} = State) -> - %% Drop old epoch message - next_record(State#state{protocol_buffers = - Buffers#protocol_buffers{dtls_cipher_texts = Rest}, - connection_states = ConnectionStates}); -next_record(#state{role = server, - socket = {Listener, {Client, _}}, - transport_cb = gen_udp} = State) -> - dtls_udp_listener:active_once(Listener, Client, self()), - {no_record, State}; -next_record(#state{role = client, - socket = {_Server, Socket}, - transport_cb = Transport} = State) -> - dtls_socket:setopts(Transport, Socket, [{active,once}]), - {no_record, State}; -next_record(State) -> - {no_record, State}. - -next_record_if_active(State = - #state{socket_options = - #socket_options{active = false}}) -> - {no_record ,State}; - -next_record_if_active(State) -> - next_record(State). - -passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) -> - case Buffer of - <<>> -> - {Record, State} = next_record(State0), - next_event(StateName, Record, State); - _ -> - {Record, State} = ssl_connection:read_application_data(<<>>, State0), - next_event(StateName, Record, State) - end. - -next_event(StateName, Record, State) -> - next_event(StateName, Record, State, []). - -next_event(connection = StateName, no_record, - #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> - case next_record_if_active(State0) of - {no_record, State} -> - ssl_connection:hibernate_after(StateName, State, Actions); - {#ssl_tls{epoch = CurrentEpoch, - type = ?HANDSHAKE, - version = Version} = Record, State1} -> - State = dtls_version(StateName, Version, State1), - {next_state, StateName, State, - [{next_event, internal, {protocol_record, Record}} | Actions]}; - {#ssl_tls{epoch = CurrentEpoch} = Record, State} -> - {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]}; - {#ssl_tls{epoch = Epoch, - type = ?HANDSHAKE, - version = _Version}, State1} = _Record when Epoch == CurrentEpoch-1 -> - {State2, MoreActions} = send_handshake_flight(State1, CurrentEpoch), - {NextRecord, State} = next_record(State2), - next_event(StateName, NextRecord, State, Actions ++ MoreActions); - %% From FLIGHT perspective CHANGE_CIPHER_SPEC is treated as a handshake - {#ssl_tls{epoch = Epoch, - type = ?CHANGE_CIPHER_SPEC, - version = _Version}, State1} = _Record when Epoch == CurrentEpoch-1 -> - {State2, MoreActions} = send_handshake_flight(State1, CurrentEpoch), - {NextRecord, State} = next_record(State2), - next_event(StateName, NextRecord, State, Actions ++ MoreActions); - {#ssl_tls{epoch = _Epoch, - version = _Version}, State1} -> - %% TODO maybe buffer later epoch - {Record, State} = next_record(State1), - next_event(StateName, Record, State, Actions); - {#alert{} = Alert, State} -> - {next_state, StateName, State, [{next_event, internal, Alert} | Actions]} - end; -next_event(connection = StateName, Record, - #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> - case Record of - #ssl_tls{epoch = CurrentEpoch, - type = ?HANDSHAKE, - version = Version} = Record -> - State = dtls_version(StateName, Version, State0), - {next_state, StateName, State, - [{next_event, internal, {protocol_record, Record}} | Actions]}; - #ssl_tls{epoch = CurrentEpoch} -> - {next_state, StateName, State0, [{next_event, internal, {protocol_record, Record}} | Actions]}; - #ssl_tls{epoch = Epoch, - type = ?HANDSHAKE, - version = _Version} when Epoch == CurrentEpoch-1 -> - {State1, MoreActions} = send_handshake_flight(State0, CurrentEpoch), - {NextRecord, State} = next_record(State1), - next_event(StateName, NextRecord, State, Actions ++ MoreActions); - %% From FLIGHT perspective CHANGE_CIPHER_SPEC is treated as a handshake - #ssl_tls{epoch = Epoch, - type = ?CHANGE_CIPHER_SPEC, - version = _Version} when Epoch == CurrentEpoch-1 -> - {State1, MoreActions} = send_handshake_flight(State0, CurrentEpoch), - {NextRecord, State} = next_record(State1), - next_event(StateName, NextRecord, State, Actions ++ MoreActions); - _ -> - next_event(StateName, no_record, State0, Actions) - end; -next_event(StateName, Record, - #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> - case Record of - no_record -> - {next_state, StateName, State0, Actions}; - #ssl_tls{epoch = CurrentEpoch, - version = Version} = Record -> - State = dtls_version(StateName, Version, State0), - {next_state, StateName, State, - [{next_event, internal, {protocol_record, Record}} | Actions]}; - #ssl_tls{epoch = _Epoch, - version = _Version} = _Record -> - %% TODO maybe buffer later epoch - {Record, State} = next_record(State0), - next_event(StateName, Record, State, Actions); - #alert{} = Alert -> - {next_state, StateName, State0, [{next_event, internal, Alert} | Actions]} - end. +dtls_handshake_events(Packets) -> + lists:map(fun(Packet) -> + {next_event, internal, {handshake, Packet}} + end, Packets). decode_cipher_text(#state{protocol_buffers = #protocol_buffers{dtls_cipher_texts = [ CT | Rest]} = Buffers, connection_states = ConnStates0} = State) -> @@ -897,6 +783,142 @@ dtls_version(hello, Version, #state{role = server} = State) -> dtls_version(_,_, State) -> State. +handle_client_hello(#client_hello{client_version = ClientVersion} = Hello, + #state{connection_states = ConnectionStates0, + port = Port, session = #session{own_certificate = Cert} = Session0, + renegotiation = {Renegotiation, _}, + session_cache = Cache, + session_cache_cb = CacheCb, + negotiated_protocol = CurrentProtocol, + key_algorithm = KeyExAlg, + ssl_options = SslOpts} = State0) -> + + case dtls_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb, + ConnectionStates0, Cert, KeyExAlg}, Renegotiation) of + #alert{} = Alert -> + handle_own_alert(Alert, ClientVersion, hello, State0); + {Version, {Type, Session}, + ConnectionStates, Protocol0, ServerHelloExt, HashSign} -> + Protocol = case Protocol0 of + undefined -> CurrentProtocol; + _ -> Protocol0 + end, + + State = prepare_flight(State0#state{connection_states = ConnectionStates, + negotiated_version = Version, + hashsign_algorithm = HashSign, + session = Session, + negotiated_protocol = Protocol}), + + ssl_connection:hello(internal, {common_client_hello, Type, ServerHelloExt}, + State, ?MODULE) + end. + + +%% raw data from socket, unpack records +handle_info({Protocol, _, _, _, Data}, StateName, + #state{data_tag = Protocol} = State0) -> + case next_dtls_record(Data, State0) of + {Record, State} -> + next_event(StateName, Record, State); + #alert{} = Alert -> + ssl_connection:handle_normal_shutdown(Alert, StateName, State0), + {stop, {shutdown, own_alert}} + end; +handle_info({CloseTag, Socket}, StateName, + #state{socket = Socket, + socket_options = #socket_options{active = Active}, + protocol_buffers = #protocol_buffers{dtls_cipher_texts = CTs}, + close_tag = CloseTag, + negotiated_version = Version} = State) -> + %% Note that as of DTLS 1.2 (TLS 1.1), + %% failure to properly close a connection no longer requires that a + %% session not be resumed. This is a change from DTLS 1.0 to conform + %% with widespread implementation practice. + case (Active == false) andalso (CTs =/= []) of + false -> + case Version of + {254, N} when N =< 253 -> + ok; + _ -> + %% As invalidate_sessions here causes performance issues, + %% we will conform to the widespread implementation + %% practice and go aginst the spec + %%invalidate_session(Role, Host, Port, Session) + ok + end, + ssl_connection:handle_normal_shutdown(?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), StateName, State), + {stop, {shutdown, transport_closed}}; + true -> + %% Fixes non-delivery of final DTLS record in {active, once}. + %% Basically allows the application the opportunity to set {active, once} again + %% and then receive the final message. + next_event(StateName, no_record, State) + end; + +handle_info(new_cookie_secret, StateName, + #state{protocol_specific = #{current_cookie_secret := Secret} = CookieInfo} = State) -> + erlang:send_after(dtls_v1:cookie_timeout(), self(), new_cookie_secret), + {next_state, StateName, State#state{protocol_specific = + CookieInfo#{current_cookie_secret => dtls_v1:cookie_secret(), + previous_cookie_secret => Secret}}}; +handle_info(Msg, StateName, State) -> + ssl_connection:StateName(info, Msg, State, ?MODULE). + +handle_state_timeout(flight_retransmission_timeout, StateName, + #state{flight_state = {retransmit, NextTimeout}} = State0) -> + {State1, Actions} = send_handshake_flight(State0#state{flight_state = {retransmit, NextTimeout}}, + retransmit_epoch(StateName, State0)), + {Record, State} = next_record(State1), + next_event(StateName, Record, State, Actions). + +handle_alerts([], Result) -> + Result; +handle_alerts(_, {stop,_} = Stop) -> + Stop; +handle_alerts([Alert | Alerts], {next_state, StateName, State}) -> + handle_alerts(Alerts, ssl_connection:handle_alert(Alert, StateName, State)); +handle_alerts([Alert | Alerts], {next_state, StateName, State, _Actions}) -> + handle_alerts(Alerts, ssl_connection:handle_alert(Alert, StateName, State)). + +handle_own_alert(Alert, Version, StateName, #state{transport_cb = gen_udp, + role = Role, + ssl_options = Options} = State0) -> + case ignore_alert(Alert, State0) of + {true, State} -> + log_ignore_alert(Options#ssl_options.log_alert, StateName, Alert, Role), + {next_state, StateName, State}; + {false, State} -> + ssl_connection:handle_own_alert(Alert, Version, StateName, State) + end; +handle_own_alert(Alert, Version, StateName, State) -> + ssl_connection:handle_own_alert(Alert, Version, StateName, State). + +encode_handshake_flight(Flight, Version, MaxFragmentSize, Epoch, ConnectionStates) -> + Fragments = lists:map(fun(Handshake) -> + dtls_handshake:fragment_handshake(Handshake, MaxFragmentSize) + end, Flight), + dtls_record:encode_handshake(Fragments, Version, Epoch, ConnectionStates). + +encode_change_cipher(#change_cipher_spec{}, Version, Epoch, ConnectionStates) -> + dtls_record:encode_change_cipher_spec(Version, Epoch, ConnectionStates). + +decode_alerts(Bin) -> + ssl_alert:decode(Bin). + +unprocessed_events(Events) -> + %% The first handshake event will be processed immediately + %% as it is entered first in the event queue and + %% when it is processed there will be length(Events)-1 + %% handshake events left to process before we should + %% process more TLS-records received on the socket. + erlang:length(Events)-1. + +update_handshake_history(#hello_verify_request{}, _, Hist) -> + Hist; +update_handshake_history(_, Handshake, Hist) -> + %% DTLS never needs option "v2_hello_compatible" to be true + ssl_handshake:update_handshake_history(Hist, iolist_to_binary(Handshake), false). prepare_flight(#state{flight_buffer = Flight, connection_states = ConnectionStates0, protocol_buffers = @@ -937,67 +959,67 @@ new_timeout(N) when N =< 30 -> new_timeout(_) -> 60. -dtls_handshake_events(Packets) -> - lists:map(fun(Packet) -> - {next_event, internal, {handshake, Packet}} - end, Packets). +send_handshake_flight(#state{socket = Socket, + transport_cb = Transport, + flight_buffer = #{handshakes := Flight, + change_cipher_spec := undefined}, + negotiated_version = Version, + connection_states = ConnectionStates0} = State0, Epoch) -> + %% TODO remove hardcoded Max size + {Encoded, ConnectionStates} = + encode_handshake_flight(lists:reverse(Flight), Version, 1400, Epoch, ConnectionStates0), + send(Transport, Socket, Encoded), + {State0#state{connection_states = ConnectionStates}, []}; -renegotiate(#state{role = client} = State, Actions) -> - %% Handle same way as if server requested - %% the renegotiation - %% Hs0 = ssl_handshake:init_handshake_history(), - {next_state, connection, State, - [{next_event, internal, #hello_request{}} | Actions]}; +send_handshake_flight(#state{socket = Socket, + transport_cb = Transport, + flight_buffer = #{handshakes := [_|_] = Flight0, + change_cipher_spec := ChangeCipher, + handshakes_after_change_cipher_spec := []}, + negotiated_version = Version, + connection_states = ConnectionStates0} = State0, Epoch) -> + {HsBefore, ConnectionStates1} = + encode_handshake_flight(lists:reverse(Flight0), Version, 1400, Epoch, ConnectionStates0), + {EncChangeCipher, ConnectionStates} = encode_change_cipher(ChangeCipher, Version, Epoch, ConnectionStates1), -renegotiate(#state{role = server} = State0, Actions) -> - HelloRequest = ssl_handshake:hello_request(), - State1 = prepare_flight(State0), - {State2, MoreActions} = send_handshake(HelloRequest, State1), - {Record, State} = next_record(State2), - next_event(hello, Record, State, Actions ++ MoreActions). + send(Transport, Socket, [HsBefore, EncChangeCipher]), + {State0#state{connection_states = ConnectionStates}, []}; -handle_alerts([], Result) -> - Result; -handle_alerts(_, {stop,_} = Stop) -> - Stop; -handle_alerts([Alert | Alerts], {next_state, StateName, State}) -> - handle_alerts(Alerts, ssl_connection:handle_alert(Alert, StateName, State)); -handle_alerts([Alert | Alerts], {next_state, StateName, State, _Actions}) -> - handle_alerts(Alerts, ssl_connection:handle_alert(Alert, StateName, State)). +send_handshake_flight(#state{socket = Socket, + transport_cb = Transport, + flight_buffer = #{handshakes := [_|_] = Flight0, + change_cipher_spec := ChangeCipher, + handshakes_after_change_cipher_spec := Flight1}, + negotiated_version = Version, + connection_states = ConnectionStates0} = State0, Epoch) -> + {HsBefore, ConnectionStates1} = + encode_handshake_flight(lists:reverse(Flight0), Version, 1400, Epoch-1, ConnectionStates0), + {EncChangeCipher, ConnectionStates2} = + encode_change_cipher(ChangeCipher, Version, Epoch-1, ConnectionStates1), + {HsAfter, ConnectionStates} = + encode_handshake_flight(lists:reverse(Flight1), Version, 1400, Epoch, ConnectionStates2), + send(Transport, Socket, [HsBefore, EncChangeCipher, HsAfter]), + {State0#state{connection_states = ConnectionStates}, []}; + +send_handshake_flight(#state{socket = Socket, + transport_cb = Transport, + flight_buffer = #{handshakes := [], + change_cipher_spec := ChangeCipher, + handshakes_after_change_cipher_spec := Flight1}, + negotiated_version = Version, + connection_states = ConnectionStates0} = State0, Epoch) -> + {EncChangeCipher, ConnectionStates1} = + encode_change_cipher(ChangeCipher, Version, Epoch-1, ConnectionStates0), + {HsAfter, ConnectionStates} = + encode_handshake_flight(lists:reverse(Flight1), Version, 1400, Epoch, ConnectionStates1), + send(Transport, Socket, [EncChangeCipher, HsAfter]), + {State0#state{connection_states = ConnectionStates}, []}. retransmit_epoch(_StateName, #state{connection_states = ConnectionStates}) -> #{epoch := Epoch} = ssl_record:current_connection_state(ConnectionStates, write), Epoch. -update_handshake_history(#hello_verify_request{}, _, Hist) -> - Hist; -update_handshake_history(_, Handshake, Hist) -> - %% DTLS never needs option "v2_hello_compatible" to be true - ssl_handshake:update_handshake_history(Hist, iolist_to_binary(Handshake), false). - -unprocessed_events(Events) -> - %% The first handshake event will be processed immediately - %% as it is entered first in the event queue and - %% when it is processed there will be length(Events)-1 - %% handshake events left to process before we should - %% process more TLS-records received on the socket. - erlang:length(Events)-1. - -handle_own_alert(Alert, Version, StateName, #state{transport_cb = gen_udp, - role = Role, - ssl_options = Options} = State0) -> - case ignore_alert(Alert, State0) of - {true, State} -> - log_ignore_alert(Options#ssl_options.log_alert, StateName, Alert, Role), - {next_state, StateName, State}; - {false, State} -> - ssl_connection:handle_own_alert(Alert, Version, StateName, State) - end; -handle_own_alert(Alert, Version, StateName, State) -> - ssl_connection:handle_own_alert(Alert, Version, StateName, State). - - ignore_alert(#alert{level = ?FATAL}, #state{protocol_specific = #{ignored_alerts := N, max_ignored_alerts := N}} = State) -> {false, State}; diff --git a/lib/ssl/src/dtls_handshake.erl b/lib/ssl/src/dtls_handshake.erl index 37a46b862e..1d6f0a42c8 100644 --- a/lib/ssl/src/dtls_handshake.erl +++ b/lib/ssl/src/dtls_handshake.erl @@ -16,6 +16,11 @@ %% limitations under the License. %% %% %CopyrightEnd% + +%%---------------------------------------------------------------------- +%% Purpose: Help funtions for handling the DTLS (specific parts of) +%%% SSL/TLS/DTLS handshake protocol +%%---------------------------------------------------------------------- -module(dtls_handshake). -include("dtls_connection.hrl"). @@ -24,15 +29,21 @@ -include("ssl_internal.hrl"). -include("ssl_alert.hrl"). +%% Handshake handling -export([client_hello/8, client_hello/9, cookie/4, hello/4, - hello_verify_request/2, get_dtls_handshake/3, fragment_handshake/2, - handshake_bin/2, encode_handshake/3]). + hello_verify_request/2]). + +%% Handshake encoding +-export([fragment_handshake/2, encode_handshake/3]). + +%% Handshake decodeing +-export([get_dtls_handshake/3]). -type dtls_handshake() :: #client_hello{} | #hello_verify_request{} | ssl_handshake:ssl_handshake(). %%==================================================================== -%% Internal application API +%% Handshake handling %%==================================================================== %%-------------------------------------------------------------------- -spec client_hello(host(), inet:port_number(), ssl_record:connection_states(), @@ -66,7 +77,8 @@ client_hello(Host, Port, Cookie, ConnectionStates, CipherSuites = ssl_handshake:available_suites(UserSuites, TLSVersion), Extensions = ssl_handshake:client_hello_extensions(TLSVersion, CipherSuites, - SslOpts, ConnectionStates, Renegotiation), + SslOpts, ConnectionStates, + Renegotiation), Id = ssl_session:client_id({Host, Port, SslOpts}, Cache, CacheCb, OwnCert), #client_hello{session_id = Id, @@ -87,11 +99,11 @@ hello(#server_hello{server_version = Version, random = Random, case dtls_record:is_acceptable_version(Version, SupportedVersions) of true -> handle_server_hello_extensions(Version, SessionId, Random, CipherSuite, - Compression, HelloExt, SslOpt, ConnectionStates0, Renegotiation); + Compression, HelloExt, SslOpt, + ConnectionStates0, Renegotiation); false -> ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION) end; - hello(#client_hello{client_version = ClientVersion} = Hello, #ssl_options{versions = Versions} = SslOpts, Info, Renegotiation) -> @@ -107,7 +119,7 @@ cookie(Key, Address, Port, #client_hello{client_version = {Major, Minor}, <<?BYTE(Major), ?BYTE(Minor)>>, Random, SessionId, CipherSuites, CompressionMethods], crypto:hmac(sha, Key, CookieData). - +%%-------------------------------------------------------------------- -spec hello_verify_request(binary(), dtls_record:dtls_version()) -> #hello_verify_request{}. %% %% Description: Creates a hello verify request message sent by server to @@ -117,11 +129,8 @@ hello_verify_request(Cookie, Version) -> #hello_verify_request{protocol_version = Version, cookie = Cookie}. %%-------------------------------------------------------------------- - -encode_handshake(Handshake, Version, Seq) -> - {MsgType, Bin} = enc_handshake(Handshake, Version), - Len = byte_size(Bin), - [MsgType, ?uint24(Len), ?uint16(Seq), ?uint24(0), ?uint24(Len), Bin]. +%%% Handshake encoding +%%-------------------------------------------------------------------- fragment_handshake(Bin, _) when is_binary(Bin)-> %% This is the change_cipher_spec not a "real handshake" but part of the flight @@ -129,10 +138,15 @@ fragment_handshake(Bin, _) when is_binary(Bin)-> fragment_handshake([MsgType, Len, Seq, _, Len, Bin], Size) -> Bins = bin_fragments(Bin, Size), handshake_fragments(MsgType, Seq, Len, Bins, []). +encode_handshake(Handshake, Version, Seq) -> + {MsgType, Bin} = enc_handshake(Handshake, Version), + Len = byte_size(Bin), + [MsgType, ?uint24(Len), ?uint16(Seq), ?uint24(0), ?uint24(Len), Bin]. + +%%-------------------------------------------------------------------- +%%% Handshake decodeing +%%-------------------------------------------------------------------- -handshake_bin([Type, Length, Data], Seq) -> - handshake_bin(Type, Length, Seq, Data). - %%-------------------------------------------------------------------- -spec get_dtls_handshake(dtls_record:dtls_version(), binary(), #protocol_buffers{}) -> {[dtls_handshake()], #protocol_buffers{}}. @@ -147,16 +161,19 @@ get_dtls_handshake(Version, Fragment, ProtocolBuffers) -> %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- -handle_client_hello(Version, #client_hello{session_id = SugesstedId, - cipher_suites = CipherSuites, - compression_methods = Compressions, - random = Random, - extensions = - #hello_extensions{elliptic_curves = Curves, - signature_algs = ClientHashSigns} = HelloExt}, +handle_client_hello(Version, + #client_hello{session_id = SugesstedId, + cipher_suites = CipherSuites, + compression_methods = Compressions, + random = Random, + extensions = + #hello_extensions{elliptic_curves = Curves, + signature_algs = ClientHashSigns} + = HelloExt}, #ssl_options{versions = Versions, signature_algs = SupportedHashSigns} = SslOpts, - {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert, _}, Renegotiation) -> + {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert, _}, + Renegotiation) -> case dtls_record:is_acceptable_version(Version, Versions) of true -> TLSVersion = dtls_v1:corresponding_tls_version(Version), @@ -164,7 +181,8 @@ handle_client_hello(Version, #client_hello{session_id = SugesstedId, ClientHashSigns, SupportedHashSigns, Cert,TLSVersion), ECCCurve = ssl_handshake:select_curve(Curves, ssl_handshake:supported_ecc(TLSVersion)), {Type, #session{cipher_suite = CipherSuite} = Session1} - = ssl_handshake:select_session(SugesstedId, CipherSuites, AvailableHashSigns, Compressions, + = ssl_handshake:select_session(SugesstedId, CipherSuites, + AvailableHashSigns, Compressions, Port, Session0#session{ecc = ECCCurve}, TLSVersion, SslOpts, Cache, CacheCb, Cert), case CipherSuite of @@ -190,7 +208,8 @@ handle_client_hello_extensions(Version, Type, Random, CipherSuites, HelloExt, SslOpts, Session0, ConnectionStates0, Renegotiation, HashSign) -> try ssl_handshake:handle_client_hello_extensions(dtls_record, Random, CipherSuites, HelloExt, dtls_v1:corresponding_tls_version(Version), - SslOpts, Session0, ConnectionStates0, Renegotiation) of + SslOpts, Session0, + ConnectionStates0, Renegotiation) of #alert{} = Alert -> Alert; {Session, ConnectionStates, Protocol, ServerHelloExt} -> @@ -212,7 +231,7 @@ handle_server_hello_extensions(Version, SessionId, Random, CipherSuite, end. -%%%%%%% Encodeing %%%%%%%%%%%%% +%%-------------------------------------------------------------------- enc_handshake(#hello_verify_request{protocol_version = {Major, Minor}, cookie = Cookie}, _Version) -> @@ -220,7 +239,6 @@ enc_handshake(#hello_verify_request{protocol_version = {Major, Minor}, {?HELLO_VERIFY_REQUEST, <<?BYTE(Major), ?BYTE(Minor), ?BYTE(CookieLength), Cookie:CookieLength/binary>>}; - enc_handshake(#hello_request{}, _Version) -> {?HELLO_REQUEST, <<>>}; enc_handshake(#client_hello{client_version = {Major, Minor}, @@ -243,19 +261,29 @@ enc_handshake(#client_hello{client_version = {Major, Minor}, ?BYTE(CookieLength), Cookie/binary, ?UINT16(CsLength), BinCipherSuites/binary, ?BYTE(CmLength), BinCompMethods/binary, ExtensionsBin/binary>>}; - enc_handshake(#server_hello{} = HandshakeMsg, Version) -> {Type, <<?BYTE(Major), ?BYTE(Minor), Rest/binary>>} = ssl_handshake:encode_handshake(HandshakeMsg, Version), {DTLSMajor, DTLSMinor} = dtls_v1:corresponding_dtls_version({Major, Minor}), {Type, <<?BYTE(DTLSMajor), ?BYTE(DTLSMinor), Rest/binary>>}; - enc_handshake(HandshakeMsg, Version) -> ssl_handshake:encode_handshake(HandshakeMsg, dtls_v1:corresponding_tls_version(Version)). +handshake_bin(#handshake_fragment{ + type = Type, + length = Len, + message_seq = Seq, + fragment_length = Len, + fragment_offset = 0, + fragment = Fragment}) -> + handshake_bin(Type, Len, Seq, Fragment). +handshake_bin(Type, Length, Seq, FragmentData) -> + <<?BYTE(Type), ?UINT24(Length), + ?UINT16(Seq), ?UINT24(0), ?UINT24(Length), + FragmentData:Length/binary>>. + bin_fragments(Bin, Size) -> bin_fragments(Bin, size(Bin), Size, 0, []). - bin_fragments(Bin, BinSize, FragSize, Offset, Fragments) -> case (BinSize - Offset - FragSize) > 0 of true -> @@ -279,7 +307,7 @@ address_to_bin({A,B,C,D}, Port) -> address_to_bin({A,B,C,D,E,F,G,H}, Port) -> <<A:16,B:16,C:16,D:16,E:16,F:16,G:16,H:16,Port:16>>. -%%%%%%% Decodeing %%%%%%%%%%%%% +%%-------------------------------------------------------------------- handle_fragments(Version, FragmentData, Buffers0, Acc) -> Fragments = decode_handshake_fragments(FragmentData), @@ -322,7 +350,6 @@ decode_handshake(_Version, ?CLIENT_HELLO, <<?UINT24(_), ?UINT16(_), compression_methods = Comp_methods, extensions = DecodedExtensions }; - decode_handshake(_Version, ?HELLO_VERIFY_REQUEST, <<?UINT24(_), ?UINT16(_), ?UINT24(_), ?UINT24(_), ?BYTE(Major), ?BYTE(Minor), @@ -330,7 +357,6 @@ decode_handshake(_Version, ?HELLO_VERIFY_REQUEST, <<?UINT24(_), ?UINT16(_), Cookie:CookieLength/binary>>) -> #hello_verify_request{protocol_version = {Major, Minor}, cookie = Cookie}; - decode_handshake(Version, Tag, <<?UINT24(_), ?UINT16(_), ?UINT24(_), ?UINT24(_), Msg/binary>>) -> %% DTLS specifics stripped @@ -370,9 +396,10 @@ reassemble(Version, #handshake_fragment{message_seq = Seq} = Fragment, end; reassemble(_, #handshake_fragment{message_seq = FragSeq} = Fragment, #protocol_buffers{dtls_handshake_next_seq = Seq, - dtls_handshake_later_fragments = LaterFragments} = Buffers0) when FragSeq > Seq-> - {more_data, - Buffers0#protocol_buffers{dtls_handshake_later_fragments = [Fragment | LaterFragments]}}; + dtls_handshake_later_fragments = LaterFragments} + = Buffers0) when FragSeq > Seq-> + {more_data, + Buffers0#protocol_buffers{dtls_handshake_later_fragments = [Fragment | LaterFragments]}}; reassemble(_, _, Buffers) -> %% Disregard fragments FragSeq < Seq {more_data, Buffers}. @@ -396,26 +423,6 @@ merge_fragment(Frag0, [Frag1 | Rest]) -> Frag -> merge_fragment(Frag, Rest) end. - -is_complete_handshake(#handshake_fragment{length = Length, fragment_length = Length}) -> - true; -is_complete_handshake(_) -> - false. - -next_fragments(LaterFragments) -> - case lists:keysort(#handshake_fragment.message_seq, LaterFragments) of - [] -> - {[], []}; - [#handshake_fragment{message_seq = Seq} | _] = Fragments -> - split_frags(Fragments, Seq, []) - end. - -split_frags([#handshake_fragment{message_seq = Seq} = Frag | Rest], Seq, Acc) -> - split_frags(Rest, Seq, [Frag | Acc]); -split_frags(Frags, _, Acc) -> - {lists:reverse(Acc), Frags}. - - %% Duplicate merge_fragments(#handshake_fragment{ fragment_offset = PreviousOffSet, @@ -486,17 +493,26 @@ merge_fragments(#handshake_fragment{ %% No merge there is a gap merge_fragments(Previous, Current) -> [Previous, Current]. - -handshake_bin(#handshake_fragment{ - type = Type, - length = Len, - message_seq = Seq, - fragment_length = Len, - fragment_offset = 0, - fragment = Fragment}) -> - handshake_bin(Type, Len, Seq, Fragment). -handshake_bin(Type, Length, Seq, FragmentData) -> - <<?BYTE(Type), ?UINT24(Length), - ?UINT16(Seq), ?UINT24(0), ?UINT24(Length), - FragmentData:Length/binary>>. +next_fragments(LaterFragments) -> + case lists:keysort(#handshake_fragment.message_seq, LaterFragments) of + [] -> + {[], []}; + [#handshake_fragment{message_seq = Seq} | _] = Fragments -> + split_frags(Fragments, Seq, []) + end. + +split_frags([#handshake_fragment{message_seq = Seq} = Frag | Rest], Seq, Acc) -> + split_frags(Rest, Seq, [Frag | Acc]); +split_frags(Frags, _, Acc) -> + {lists:reverse(Acc), Frags}. + +is_complete_handshake(#handshake_fragment{length = Length, fragment_length = Length}) -> + true; +is_complete_handshake(_) -> + false. + + + + + diff --git a/lib/ssl/src/dtls_record.erl b/lib/ssl/src/dtls_record.erl index a8520717e5..2dcc6efc91 100644 --- a/lib/ssl/src/dtls_record.erl +++ b/lib/ssl/src/dtls_record.erl @@ -32,13 +32,15 @@ %% Handling of incoming data -export([get_dtls_records/2, init_connection_states/2, empty_connection_state/1]). -%% Decoding --export([decode_cipher_text/2]). +-export([save_current_connection_state/2, next_epoch/2, get_connection_state_by_epoch/3, replay_detect/2, + init_connection_state_seq/2, current_connection_state_epoch/2]). %% Encoding -export([encode_handshake/4, encode_alert_record/3, - encode_change_cipher_spec/3, encode_data/3]). --export([encode_plain_text/5]). + encode_change_cipher_spec/3, encode_data/3, encode_plain_text/5]). + +%% Decoding +-export([decode_cipher_text/2]). %% Protocol version handling -export([protocol_version/1, lowest_protocol_version/1, lowest_protocol_version/2, @@ -46,9 +48,6 @@ is_higher/2, supported_protocol_versions/0, is_acceptable_version/2, hello_version/2]). --export([save_current_connection_state/2, next_epoch/2, get_connection_state_by_epoch/3, replay_detect/2]). - --export([init_connection_state_seq/2, current_connection_state_epoch/2]). -export_type([dtls_version/0, dtls_atom_version/0]). @@ -60,7 +59,7 @@ -compile(inline). %%==================================================================== -%% Internal application API +%% Handling of incoming data %%==================================================================== %%-------------------------------------------------------------------- -spec init_connection_states(client | server, one_n_minus_one | zero_n | disabled) -> @@ -86,7 +85,6 @@ init_connection_states(Role, BeastMitigation) -> empty_connection_state(Empty) -> Empty#{epoch => undefined, replay_window => init_replay_window(?REPLAY_WINDOW_SIZE)}. - %%-------------------------------------------------------------------- -spec save_current_connection_state(ssl_record:connection_states(), read | write) -> ssl_record:connection_states(). @@ -137,6 +135,34 @@ set_connection_state_by_epoch(ReadState, Epoch, #{saved_read := #{epoch := Epoch States#{saved_read := ReadState}. %%-------------------------------------------------------------------- +-spec init_connection_state_seq(dtls_version(), ssl_record:connection_states()) -> + ssl_record:connection_state(). +%% +%% Description: Copy the read sequence number to the write sequence number +%% This is only valid for DTLS in the first client_hello +%%-------------------------------------------------------------------- +init_connection_state_seq({254, _}, + #{current_read := #{epoch := 0, sequence_number := Seq}, + current_write := #{epoch := 0} = Write} = ConnnectionStates0) -> + ConnnectionStates0#{current_write => Write#{sequence_number => Seq}}; +init_connection_state_seq(_, ConnnectionStates) -> + ConnnectionStates. + +%%-------------------------------------------------------- +-spec current_connection_state_epoch(ssl_record:connection_states(), read | write) -> + integer(). +%% +%% Description: Returns the epoch the connection_state record +%% that is currently defined as the current connection state. +%%-------------------------------------------------------------------- +current_connection_state_epoch(#{current_read := #{epoch := Epoch}}, + read) -> + Epoch; +current_connection_state_epoch(#{current_write := #{epoch := Epoch}}, + write) -> + Epoch. + +%%-------------------------------------------------------------------- -spec get_dtls_records(binary(), binary()) -> {[binary()], binary()} | #alert{}. %% %% Description: Given old buffer and new data from UDP/SCTP, packs up a records @@ -148,55 +174,10 @@ get_dtls_records(Data, <<>>) -> get_dtls_records(Data, Buffer) -> get_dtls_records_aux(list_to_binary([Buffer, Data]), []). -get_dtls_records_aux(<<?BYTE(?APPLICATION_DATA),?BYTE(MajVer),?BYTE(MinVer), - ?UINT16(Epoch), ?UINT48(SequenceNumber), - ?UINT16(Length), Data:Length/binary, Rest/binary>>, - Acc) -> - get_dtls_records_aux(Rest, [#ssl_tls{type = ?APPLICATION_DATA, - version = {MajVer, MinVer}, - epoch = Epoch, sequence_number = SequenceNumber, - fragment = Data} | Acc]); -get_dtls_records_aux(<<?BYTE(?HANDSHAKE),?BYTE(MajVer),?BYTE(MinVer), - ?UINT16(Epoch), ?UINT48(SequenceNumber), - ?UINT16(Length), - Data:Length/binary, Rest/binary>>, Acc) when MajVer >= 128 -> - get_dtls_records_aux(Rest, [#ssl_tls{type = ?HANDSHAKE, - version = {MajVer, MinVer}, - epoch = Epoch, sequence_number = SequenceNumber, - fragment = Data} | Acc]); -get_dtls_records_aux(<<?BYTE(?ALERT),?BYTE(MajVer),?BYTE(MinVer), - ?UINT16(Epoch), ?UINT48(SequenceNumber), - ?UINT16(Length), Data:Length/binary, - Rest/binary>>, Acc) -> - get_dtls_records_aux(Rest, [#ssl_tls{type = ?ALERT, - version = {MajVer, MinVer}, - epoch = Epoch, sequence_number = SequenceNumber, - fragment = Data} | Acc]); -get_dtls_records_aux(<<?BYTE(?CHANGE_CIPHER_SPEC),?BYTE(MajVer),?BYTE(MinVer), - ?UINT16(Epoch), ?UINT48(SequenceNumber), - ?UINT16(Length), Data:Length/binary, Rest/binary>>, - Acc) -> - get_dtls_records_aux(Rest, [#ssl_tls{type = ?CHANGE_CIPHER_SPEC, - version = {MajVer, MinVer}, - epoch = Epoch, sequence_number = SequenceNumber, - fragment = Data} | Acc]); -get_dtls_records_aux(<<0:1, _CT:7, ?BYTE(_MajVer), ?BYTE(_MinVer), - ?UINT16(Length), _/binary>>, - _Acc) when Length > ?MAX_CIPHER_TEXT_LENGTH -> - ?ALERT_REC(?FATAL, ?RECORD_OVERFLOW); - -get_dtls_records_aux(<<1:1, Length0:15, _/binary>>,_Acc) - when Length0 > ?MAX_CIPHER_TEXT_LENGTH -> - ?ALERT_REC(?FATAL, ?RECORD_OVERFLOW); - -get_dtls_records_aux(Data, Acc) -> - case size(Data) =< ?MAX_CIPHER_TEXT_LENGTH + ?INITIAL_BYTES of - true -> - {lists:reverse(Acc), Data}; - false -> - ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE) - end. +%%==================================================================== +%% Encoding DTLS records +%%==================================================================== %%-------------------------------------------------------------------- -spec encode_handshake(iolist(), dtls_version(), integer(), ssl_record:connection_states()) -> @@ -245,11 +226,19 @@ encode_plain_text(Type, Version, Epoch, Data, ConnectionStates) -> {CipherText, Write} = encode_dtls_cipher_text(Type, Version, CipherFragment, Write1), {CipherText, set_connection_state_by_epoch(Write, Epoch, ConnectionStates, write)}. +%%==================================================================== +%% Decoding +%%==================================================================== decode_cipher_text(#ssl_tls{epoch = Epoch} = CipherText, ConnnectionStates0) -> ReadState = get_connection_state_by_epoch(Epoch, ConnnectionStates0, read), decode_cipher_text(CipherText, ReadState, ConnnectionStates0). + +%%==================================================================== +%% Protocol version handling +%%==================================================================== + %%-------------------------------------------------------------------- -spec protocol_version(dtls_atom_version() | dtls_version()) -> dtls_version() | dtls_atom_version(). @@ -381,35 +370,6 @@ supported_protocol_versions([_|_] = Vsns) -> is_acceptable_version(Version, Versions) -> lists:member(Version, Versions). - -%%-------------------------------------------------------------------- --spec init_connection_state_seq(dtls_version(), ssl_record:connection_states()) -> - ssl_record:connection_state(). -%% -%% Description: Copy the read sequence number to the write sequence number -%% This is only valid for DTLS in the first client_hello -%%-------------------------------------------------------------------- -init_connection_state_seq({254, _}, - #{current_read := #{epoch := 0, sequence_number := Seq}, - current_write := #{epoch := 0} = Write} = ConnnectionStates0) -> - ConnnectionStates0#{current_write => Write#{sequence_number => Seq}}; -init_connection_state_seq(_, ConnnectionStates) -> - ConnnectionStates. - -%%-------------------------------------------------------- --spec current_connection_state_epoch(ssl_record:connection_states(), read | write) -> - integer(). -%% -%% Description: Returns the epoch the connection_state record -%% that is currently defined as the current connection state. -%%-------------------------------------------------------------------- -current_connection_state_epoch(#{current_read := #{epoch := Epoch}}, - read) -> - Epoch; -current_connection_state_epoch(#{current_write := #{epoch := Epoch}}, - write) -> - Epoch. - -spec hello_version(dtls_version(), [dtls_version()]) -> dtls_version(). hello_version(Version, Versions) -> case dtls_v1:corresponding_tls_version(Version) of @@ -438,15 +398,93 @@ initial_connection_state(ConnectionEnd, BeastMitigation) -> server_verify_data => undefined }. -lowest_list_protocol_version(Ver, []) -> - Ver; -lowest_list_protocol_version(Ver1, [Ver2 | Rest]) -> - lowest_list_protocol_version(lowest_protocol_version(Ver1, Ver2), Rest). +get_dtls_records_aux(<<?BYTE(?APPLICATION_DATA),?BYTE(MajVer),?BYTE(MinVer), + ?UINT16(Epoch), ?UINT48(SequenceNumber), + ?UINT16(Length), Data:Length/binary, Rest/binary>>, + Acc) -> + get_dtls_records_aux(Rest, [#ssl_tls{type = ?APPLICATION_DATA, + version = {MajVer, MinVer}, + epoch = Epoch, sequence_number = SequenceNumber, + fragment = Data} | Acc]); +get_dtls_records_aux(<<?BYTE(?HANDSHAKE),?BYTE(MajVer),?BYTE(MinVer), + ?UINT16(Epoch), ?UINT48(SequenceNumber), + ?UINT16(Length), + Data:Length/binary, Rest/binary>>, Acc) when MajVer >= 128 -> + get_dtls_records_aux(Rest, [#ssl_tls{type = ?HANDSHAKE, + version = {MajVer, MinVer}, + epoch = Epoch, sequence_number = SequenceNumber, + fragment = Data} | Acc]); +get_dtls_records_aux(<<?BYTE(?ALERT),?BYTE(MajVer),?BYTE(MinVer), + ?UINT16(Epoch), ?UINT48(SequenceNumber), + ?UINT16(Length), Data:Length/binary, + Rest/binary>>, Acc) -> + get_dtls_records_aux(Rest, [#ssl_tls{type = ?ALERT, + version = {MajVer, MinVer}, + epoch = Epoch, sequence_number = SequenceNumber, + fragment = Data} | Acc]); +get_dtls_records_aux(<<?BYTE(?CHANGE_CIPHER_SPEC),?BYTE(MajVer),?BYTE(MinVer), + ?UINT16(Epoch), ?UINT48(SequenceNumber), + ?UINT16(Length), Data:Length/binary, Rest/binary>>, + Acc) -> + get_dtls_records_aux(Rest, [#ssl_tls{type = ?CHANGE_CIPHER_SPEC, + version = {MajVer, MinVer}, + epoch = Epoch, sequence_number = SequenceNumber, + fragment = Data} | Acc]); -highest_list_protocol_version(Ver, []) -> - Ver; -highest_list_protocol_version(Ver1, [Ver2 | Rest]) -> - highest_list_protocol_version(highest_protocol_version(Ver1, Ver2), Rest). +get_dtls_records_aux(<<0:1, _CT:7, ?BYTE(_MajVer), ?BYTE(_MinVer), + ?UINT16(Length), _/binary>>, + _Acc) when Length > ?MAX_CIPHER_TEXT_LENGTH -> + ?ALERT_REC(?FATAL, ?RECORD_OVERFLOW); + +get_dtls_records_aux(<<1:1, Length0:15, _/binary>>,_Acc) + when Length0 > ?MAX_CIPHER_TEXT_LENGTH -> + ?ALERT_REC(?FATAL, ?RECORD_OVERFLOW); + +get_dtls_records_aux(Data, Acc) -> + case size(Data) =< ?MAX_CIPHER_TEXT_LENGTH + ?INITIAL_BYTES of + true -> + {lists:reverse(Acc), Data}; + false -> + ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE) + end. +%%-------------------------------------------------------------------- + +init_replay_window(Size) -> + #{size => Size, + top => Size, + bottom => 0, + mask => 0 bsl 64 + }. + +replay_detect(#ssl_tls{sequence_number = SequenceNumber}, #{replay_window := Window}) -> + is_replay(SequenceNumber, Window). + + +is_replay(SequenceNumber, #{bottom := Bottom}) when SequenceNumber < Bottom -> + true; +is_replay(SequenceNumber, #{size := Size, + top := Top, + bottom := Bottom, + mask := Mask}) when (SequenceNumber >= Bottom) andalso (SequenceNumber =< Top) -> + Index = (SequenceNumber rem Size), + (Index band Mask) == 1; + +is_replay(_, _) -> + false. + +update_replay_window(SequenceNumber, #{replay_window := #{size := Size, + top := Top, + bottom := Bottom, + mask := Mask0} = Window0} = ConnectionStates) -> + NoNewBits = SequenceNumber - Top, + Index = SequenceNumber rem Size, + Mask = (Mask0 bsl NoNewBits) bor Index, + Window = Window0#{top => SequenceNumber, + bottom => Bottom + NoNewBits, + mask => Mask}, + ConnectionStates#{replay_window := Window}. + +%%-------------------------------------------------------------------- encode_dtls_cipher_text(Type, {MajVer, MinVer}, Fragment, #{epoch := Epoch, sequence_number := Seq} = WriteState) -> @@ -490,6 +528,7 @@ encode_plain_text(Type, Version, Fragment, #{compression_state := CompS0, ssl_cipher:cipher(BulkCipherAlgo, CipherS0, MAC, Fragment, TLSVersion), {CipherFragment, WriteState0#{cipher_state => CipherS1}}. +%%-------------------------------------------------------------------- decode_cipher_text(#ssl_tls{type = Type, version = Version, epoch = Epoch, sequence_number = Seq, @@ -541,6 +580,7 @@ decode_cipher_text(#ssl_tls{type = Type, version = Version, false -> ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC) end. +%%-------------------------------------------------------------------- calc_mac_hash(Type, Version, #{mac_secret := MacSecret, security_parameters := #security_parameters{mac_algorithm = MacAlg}}, @@ -549,16 +589,6 @@ calc_mac_hash(Type, Version, #{mac_secret := MacSecret, mac_hash(Version, MacAlg, MacSecret, Epoch, SeqNo, Type, Length, Fragment). -highest_protocol_version() -> - highest_protocol_version(supported_protocol_versions()). - -lowest_protocol_version() -> - lowest_protocol_version(supported_protocol_versions()). - -sufficient_dtlsv1_2_crypto_support() -> - CryptoSupport = crypto:supports(), - proplists:get_bool(sha256, proplists:get_value(hashs, CryptoSupport)). - mac_hash({Major, Minor}, MacAlg, MacSecret, Epoch, SeqNo, Type, Length, Fragment) -> Value = [<<?UINT16(Epoch), ?UINT48(SeqNo), ?BYTE(Type), ?BYTE(Major), ?BYTE(Minor), ?UINT16(Length)>>, @@ -568,37 +598,25 @@ mac_hash({Major, Minor}, MacAlg, MacSecret, Epoch, SeqNo, Type, Length, Fragment calc_aad(Type, {MajVer, MinVer}, Epoch, SeqNo) -> <<?UINT16(Epoch), ?UINT48(SeqNo), ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>. -init_replay_window(Size) -> - #{size => Size, - top => Size, - bottom => 0, - mask => 0 bsl 64 - }. +%%-------------------------------------------------------------------- -replay_detect(#ssl_tls{sequence_number = SequenceNumber}, #{replay_window := Window}) -> - is_replay(SequenceNumber, Window). +lowest_list_protocol_version(Ver, []) -> + Ver; +lowest_list_protocol_version(Ver1, [Ver2 | Rest]) -> + lowest_list_protocol_version(lowest_protocol_version(Ver1, Ver2), Rest). +highest_list_protocol_version(Ver, []) -> + Ver; +highest_list_protocol_version(Ver1, [Ver2 | Rest]) -> + highest_list_protocol_version(highest_protocol_version(Ver1, Ver2), Rest). -is_replay(SequenceNumber, #{bottom := Bottom}) when SequenceNumber < Bottom -> - true; -is_replay(SequenceNumber, #{size := Size, - top := Top, - bottom := Bottom, - mask := Mask}) when (SequenceNumber >= Bottom) andalso (SequenceNumber =< Top) -> - Index = (SequenceNumber rem Size), - (Index band Mask) == 1; +highest_protocol_version() -> + highest_protocol_version(supported_protocol_versions()). -is_replay(_, _) -> - false. +lowest_protocol_version() -> + lowest_protocol_version(supported_protocol_versions()). + +sufficient_dtlsv1_2_crypto_support() -> + CryptoSupport = crypto:supports(), + proplists:get_bool(sha256, proplists:get_value(hashs, CryptoSupport)). -update_replay_window(SequenceNumber, #{replay_window := #{size := Size, - top := Top, - bottom := Bottom, - mask := Mask0} = Window0} = ConnectionStates) -> - NoNewBits = SequenceNumber - Top, - Index = SequenceNumber rem Size, - Mask = (Mask0 bsl NoNewBits) bor Index, - Window = Window0#{top => SequenceNumber, - bottom => Bottom + NoNewBits, - mask => Mask}, - ConnectionStates#{replay_window := Window}. diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index d83c9cb59f..79485833e0 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -44,10 +44,21 @@ -export([send/2, recv/3, close/2, shutdown/2, new_user/2, get_opts/2, set_opts/2, peer_certificate/1, renegotiation/1, negotiated_protocol/1, prf/5, - get_sslsocket/1, handshake_complete/3, - connection_information/2, handle_common_event/5 + connection_information/2 ]). +%% Alert and close handling +-export([handle_own_alert/4, handle_alert/3, + handle_normal_shutdown/3 + ]). + +%% Data handling +-export([write_application_data/3, read_application_data/2]). + +%% Help functions for tls|dtls_connection.erl +-export([handle_session/7, ssl_config/3, + prepare_connection/2, hibernate_after/3]). + %% General gen_statem state functions with extra callback argument %% to determine if it is an SSL/TLS or DTLS gen_statem machine -export([init/4, hello/4, abbreviated/4, certify/4, cipher/4, @@ -56,21 +67,15 @@ %% gen_statem callbacks -export([terminate/3, format_status/2]). -%% --export([handle_info/3, handle_call/5, handle_session/7, ssl_config/3, - prepare_connection/2, hibernate_after/3]). - -%% Alert and close handling --export([handle_own_alert/4,handle_alert/3, - handle_normal_shutdown/3 - ]). +%% Erlang Distribution export +-export([get_sslsocket/1, handshake_complete/3]). -%% Data handling --export([write_application_data/3, read_application_data/2]). +%% TODO: do not export, call state function instead +-export([handle_info/3, handle_call/5, handle_common_event/5]). %%==================================================================== -%% Internal application API -%%==================================================================== +%% Setup +%%==================================================================== %%-------------------------------------------------------------------- -spec connect(tls_connection | dtls_connection, host(), inet:port_number(), @@ -166,6 +171,16 @@ socket_control(dtls_connection = Connection, {_, Socket}, Pid, Transport, Listen {error, Reason} -> {error, Reason} end. + +start_or_recv_cancel_timer(infinity, _RecvFrom) -> + undefined; +start_or_recv_cancel_timer(Timeout, RecvFrom) -> + erlang:send_after(Timeout, self(), {cancel_start_or_recv, RecvFrom}). + +%%==================================================================== +%% User events +%%==================================================================== + %%-------------------------------------------------------------------- -spec send(pid(), iodata()) -> ok | {error, reason()}. %% @@ -281,6 +296,197 @@ handshake_complete(ConnectionPid, Node, DHandle) -> prf(ConnectionPid, Secret, Label, Seed, WantedLength) -> call(ConnectionPid, {prf, Secret, Label, Seed, WantedLength}). +%%==================================================================== +%% Alert and close handling +%%==================================================================== +handle_own_alert(Alert, Version, StateName, + #state{role = Role, + transport_cb = Transport, + socket = Socket, + protocol_cb = Connection, + connection_states = ConnectionStates, + ssl_options = SslOpts} = State) -> + try %% Try to tell the other side + {BinMsg, _} = + Connection:encode_alert(Alert, Version, ConnectionStates), + Connection:send(Transport, Socket, BinMsg) + catch _:_ -> %% Can crash if we are in a uninitialized state + ignore + end, + try %% Try to tell the local user + log_alert(SslOpts#ssl_options.log_alert, Role, Connection:protocol_name(), StateName, Alert#alert{role = Role}), + handle_normal_shutdown(Alert,StateName, State) + catch _:_ -> + ok + end, + {stop, {shutdown, own_alert}}. + +handle_normal_shutdown(Alert, _, #state{socket = Socket, + transport_cb = Transport, + protocol_cb = Connection, + start_or_recv_from = StartFrom, + tracker = Tracker, + role = Role, renegotiation = {false, first}}) -> + alert_user(Transport, Tracker,Socket, StartFrom, Alert, Role, Connection); + +handle_normal_shutdown(Alert, StateName, #state{socket = Socket, + socket_options = Opts, + transport_cb = Transport, + protocol_cb = Connection, + user_application = {_Mon, Pid}, + tracker = Tracker, + start_or_recv_from = RecvFrom, role = Role}) -> + alert_user(Transport, Tracker, Socket, StateName, Opts, Pid, RecvFrom, Alert, Role, Connection). + +handle_alert(#alert{level = ?FATAL} = Alert, StateName, + #state{socket = Socket, transport_cb = Transport, + protocol_cb = Connection, + ssl_options = SslOpts, start_or_recv_from = From, host = Host, + port = Port, session = Session, user_application = {_Mon, Pid}, + role = Role, socket_options = Opts, tracker = Tracker}) -> + invalidate_session(Role, Host, Port, Session), + log_alert(SslOpts#ssl_options.log_alert, Role, Connection:protocol_name(), + StateName, Alert#alert{role = opposite_role(Role)}), + alert_user(Transport, Tracker, Socket, StateName, Opts, Pid, From, Alert, Role, Connection), + {stop, normal}; + +handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert, + StateName, State) -> + handle_normal_shutdown(Alert, StateName, State), + {stop, {shutdown, peer_close}}; + +handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, + #state{role = Role, ssl_options = SslOpts, protocol_cb = Connection, renegotiation = {true, internal}} = State) -> + log_alert(SslOpts#ssl_options.log_alert, Role, + Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}), + handle_normal_shutdown(Alert, StateName, State), + {stop, {shutdown, peer_close}}; + +handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, + #state{role = Role, + ssl_options = SslOpts, renegotiation = {true, From}, + protocol_cb = Connection} = State0) -> + log_alert(SslOpts#ssl_options.log_alert, Role, + Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}), + gen_statem:reply(From, {error, renegotiation_rejected}), + {Record, State1} = Connection:next_record(State0), + %% Go back to connection! + State = Connection:reinit_handshake_data(State1#state{renegotiation = undefined}), + Connection:next_event(connection, Record, State); + +%% Gracefully log and ignore all other warning alerts +handle_alert(#alert{level = ?WARNING} = Alert, StateName, + #state{ssl_options = SslOpts, protocol_cb = Connection, role = Role} = State0) -> + log_alert(SslOpts#ssl_options.log_alert, Role, + Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}), + {Record, State} = Connection:next_record(State0), + Connection:next_event(StateName, Record, State). + +%%==================================================================== +%% Data handling +%%==================================================================== +write_application_data(Data0, {FromPid, _} = From, + #state{socket = Socket, + negotiated_version = Version, + protocol_cb = Connection, + transport_cb = Transport, + connection_states = ConnectionStates0, + socket_options = SockOpts, + ssl_options = #ssl_options{renegotiate_at = RenegotiateAt}} = State) -> + Data = encode_packet(Data0, SockOpts), + + case time_to_renegotiate(Data, ConnectionStates0, RenegotiateAt) of + true -> + Connection:renegotiate(State#state{renegotiation = {true, internal}}, + [{next_event, {call, From}, {application_data, Data0}}]); + false -> + {Msgs, ConnectionStates} = + Connection:encode_data(Data, Version, ConnectionStates0), + NewState = State#state{connection_states = ConnectionStates}, + case Connection:send(Transport, Socket, Msgs) of + ok when FromPid =:= self() -> + hibernate_after(connection, NewState, []); + Error when FromPid =:= self() -> + {stop, {shutdown, Error}, NewState}; + ok -> + hibernate_after(connection, NewState, [{reply, From, ok}]); + Result -> + hibernate_after(connection, NewState, [{reply, From, Result}]) + end + end. + +read_application_data(Data, #state{user_application = {_Mon, Pid}, + socket = Socket, + protocol_cb = Connection, + transport_cb = Transport, + socket_options = SOpts, + bytes_to_read = BytesToRead, + start_or_recv_from = RecvFrom, + timer = Timer, + user_data_buffer = Buffer0, + tracker = Tracker} = State0) -> + Buffer1 = if + Buffer0 =:= <<>> -> Data; + Data =:= <<>> -> Buffer0; + true -> <<Buffer0/binary, Data/binary>> + end, + case get_data(SOpts, BytesToRead, Buffer1) of + {ok, ClientData, Buffer} -> % Send data + case State0 of + #state{ + ssl_options = #ssl_options{erl_dist = true}, + protocol_specific = #{d_handle := DHandle}} -> + State = + State0#state{ + user_data_buffer = Buffer, + bytes_to_read = undefined}, + try erlang:dist_ctrl_put_data(DHandle, ClientData) of + _ + when SOpts#socket_options.active =:= false; + Buffer =:= <<>> -> + %% Passive mode, wait for active once or recv + %% Active and empty, get more data + Connection:next_record_if_active(State); + _ -> %% We have more data + read_application_data(<<>>, State) + catch _:Reason -> + death_row(State, Reason) + end; + _ -> + SocketOpt = + deliver_app_data( + Transport, Socket, SOpts, + ClientData, Pid, RecvFrom, Tracker, Connection), + cancel_timer(Timer), + State = + State0#state{ + user_data_buffer = Buffer, + start_or_recv_from = undefined, + timer = undefined, + bytes_to_read = undefined, + socket_options = SocketOpt + }, + if + SocketOpt#socket_options.active =:= false; + Buffer =:= <<>> -> + %% Passive mode, wait for active once or recv + %% Active and empty, get more data + Connection:next_record_if_active(State); + true -> %% We have more data + read_application_data(<<>>, State) + end + end; + {more, Buffer} -> % no reply, we need more data + Connection:next_record(State0#state{user_data_buffer = Buffer}); + {passive, Buffer} -> + Connection:next_record_if_active(State0#state{user_data_buffer = Buffer}); + {error,_Reason} -> %% Invalid packet in packet mode + deliver_packet_error(Transport, Socket, SOpts, Buffer1, Pid, RecvFrom, Tracker, Connection), + stop_normal(State0) + end. +%%==================================================================== +%% Help functions for tls|dtls_connection.erl +%%==================================================================== %%-------------------------------------------------------------------- -spec handle_session(#server_hello{}, ssl_record:ssl_version(), binary(), ssl_record:connection_states(), _,_, #state{}) -> @@ -349,7 +555,7 @@ ssl_config(Opts, Role, State) -> ssl_options = Opts}. %%==================================================================== -%% gen_statem state functions +%% gen_statem general state functions with connection cb argument %%==================================================================== %%-------------------------------------------------------------------- -spec init(gen_statem:event_type(), @@ -408,7 +614,6 @@ hello(Type, Msg, State, Connection) -> %%-------------------------------------------------------------------- abbreviated({call, From}, Msg, State, Connection) -> handle_call(Msg, From, ?FUNCTION_NAME, State, Connection); - abbreviated(internal, #finished{verify_data = Data} = Finished, #state{role = server, negotiated_version = Version, @@ -429,7 +634,6 @@ abbreviated(internal, #finished{verify_data = Data} = Finished, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0) end; - abbreviated(internal, #finished{verify_data = Data} = Finished, #state{role = client, tls_handshake_history = Handshake0, session = #session{master_secret = MasterSecret}, @@ -449,7 +653,6 @@ abbreviated(internal, #finished{verify_data = Data} = Finished, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0) end; - %% only allowed to send next_protocol message after change cipher spec %% & before finished message and it is not allowed during renegotiation abbreviated(internal, #next_protocol{selected_protocol = SelectedProtocol}, @@ -490,7 +693,6 @@ certify(internal, #certificate{asn1_certificates = []}, State, _) -> Alert = ?ALERT_REC(?FATAL,?HANDSHAKE_FAILURE), handle_own_alert(Alert, Version, ?FUNCTION_NAME, State); - certify(internal, #certificate{asn1_certificates = []}, #state{role = server, ssl_options = #ssl_options{verify = verify_peer, @@ -499,7 +701,6 @@ certify(internal, #certificate{asn1_certificates = []}, {Record, State} = Connection:next_record(State0#state{client_certificate_requested = false}), Connection:next_event(?FUNCTION_NAME, Record, State); - certify(internal, #certificate{}, #state{role = server, negotiated_version = Version, @@ -507,7 +708,6 @@ certify(internal, #certificate{}, State, _) -> Alert = ?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE, unrequested_certificate), handle_own_alert(Alert, Version, ?FUNCTION_NAME, State); - certify(internal, #certificate{} = Cert, #state{negotiated_version = Version, role = Role, @@ -524,7 +724,6 @@ certify(internal, #certificate{} = Cert, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State) end; - certify(internal, #server_key_exchange{exchange_keys = Keys}, #state{role = client, negotiated_version = Version, key_algorithm = Alg, @@ -557,7 +756,6 @@ certify(internal, #server_key_exchange{exchange_keys = Keys}, Version, ?FUNCTION_NAME, State) end end; - certify(internal, #certificate_request{}, #state{role = client, negotiated_version = Version, key_algorithm = Alg} = State, _) @@ -565,8 +763,7 @@ certify(internal, #certificate_request{}, Alg == psk; Alg == dhe_psk; Alg == ecdhe_psk; Alg == rsa_psk; Alg == srp_dss; Alg == srp_rsa; Alg == srp_anon -> handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE), - Version, certify, State); - + Version, ?FUNCTION_NAME, State); certify(internal, #certificate_request{} = CertRequest, #state{session = #session{own_certificate = Cert}, role = client, @@ -580,7 +777,6 @@ certify(internal, #certificate_request{} = CertRequest, Connection:next_event(?FUNCTION_NAME, Record, State#state{cert_hashsign_algorithm = NegotiatedHashSign}) end; - %% PSK and RSA_PSK might bypass the Server-Key-Exchange certify(internal, #server_hello_done{}, #state{session = #session{master_secret = undefined}, @@ -599,7 +795,6 @@ certify(internal, #server_hello_done{}, State0#state{premaster_secret = PremasterSecret}), client_certify_and_key_exchange(State, Connection) end; - certify(internal, #server_hello_done{}, #state{session = #session{master_secret = undefined}, ssl_options = #ssl_options{user_lookup_fun = PSKLookup}, @@ -620,7 +815,6 @@ certify(internal, #server_hello_done{}, State0#state{premaster_secret = RSAPremasterSecret}), client_certify_and_key_exchange(State, Connection) end; - %% Master secret was determined with help of server-key exchange msg certify(internal, #server_hello_done{}, #state{session = #session{master_secret = MasterSecret} = Session, @@ -636,7 +830,6 @@ certify(internal, #server_hello_done{}, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0) end; - %% Master secret is calculated from premaster_secret certify(internal, #server_hello_done{}, #state{session = Session0, @@ -654,7 +847,6 @@ certify(internal, #server_hello_done{}, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0) end; - certify(internal = Type, #client_key_exchange{} = Msg, #state{role = server, client_certificate_requested = true, @@ -662,7 +854,6 @@ certify(internal = Type, #client_key_exchange{} = Msg, Connection) -> %% We expect a certificate here handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection); - certify(internal, #client_key_exchange{exchange_keys = Keys}, State = #state{key_algorithm = KeyAlg, negotiated_version = Version}, Connection) -> try @@ -672,7 +863,6 @@ certify(internal, #client_key_exchange{exchange_keys = Keys}, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State) end; - certify(Type, Msg, State, Connection) -> handle_common_event(Type, Msg, ?FUNCTION_NAME, State, Connection). @@ -684,10 +874,8 @@ certify(Type, Msg, State, Connection) -> %%-------------------------------------------------------------------- cipher({call, From}, Msg, State, Connection) -> handle_call(Msg, From, ?FUNCTION_NAME, State, Connection); - cipher(info, Msg, State, _) -> handle_info(Msg, ?FUNCTION_NAME, State); - cipher(internal, #certificate_verify{signature = Signature, hashsign_algorithm = CertHashSign}, #state{role = server, @@ -710,14 +898,12 @@ cipher(internal, #certificate_verify{signature = Signature, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State0) end; - %% client must send a next protocol message if we are expecting it cipher(internal, #finished{}, #state{role = server, expecting_next_protocol_negotiation = true, negotiated_protocol = undefined, negotiated_version = Version} = State0, _Connection) -> handle_own_alert(?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), Version, ?FUNCTION_NAME, State0); - cipher(internal, #finished{verify_data = Data} = Finished, #state{negotiated_version = Version, host = Host, @@ -740,7 +926,6 @@ cipher(internal, #finished{verify_data = Data} = Finished, #alert{} = Alert -> handle_own_alert(Alert, Version, ?FUNCTION_NAME, State) end; - %% only allowed to send next_protocol message after change cipher spec %% & before finished message and it is not allowed during renegotiation cipher(internal, #next_protocol{selected_protocol = SelectedProtocol}, @@ -1075,7 +1260,6 @@ handle_info( {'DOWN', MonitorRef, _, _, _}, _, #state{user_application={MonitorRef,_Pid}} = State) -> stop_normal(State); - %%% So that terminate will be run when supervisor issues shutdown handle_info({'EXIT', _Sup, shutdown}, _StateName, State) -> {stop, shutdown, State}; @@ -1084,21 +1268,17 @@ handle_info({'EXIT', Socket, normal}, _StateName, #state{socket = Socket} = Stat {stop, {shutdown, transport_closed}, State}; handle_info({'EXIT', Socket, Reason}, _StateName, #state{socket = Socket} = State) -> {stop, {shutdown, Reason}, State}; - handle_info(allow_renegotiate, StateName, State) -> {next_state, StateName, State#state{allow_renegotiate = true}}; - handle_info({cancel_start_or_recv, StartFrom}, StateName, #state{renegotiation = {false, first}} = State) when StateName =/= connection -> {stop_and_reply, {shutdown, user_timeout}, {reply, StartFrom, {error, timeout}}, State#state{timer = undefined}}; - handle_info({cancel_start_or_recv, RecvFrom}, StateName, #state{start_or_recv_from = RecvFrom} = State) when RecvFrom =/= undefined -> {next_state, StateName, State#state{start_or_recv_from = undefined, bytes_to_read = undefined, timer = undefined}, [{reply, RecvFrom, {error, timeout}}]}; - handle_info({cancel_start_or_recv, _RecvFrom}, StateName, State) -> {next_state, StateName, State#state{timer = undefined}}; @@ -1107,41 +1287,9 @@ handle_info(Msg, StateName, #state{socket = Socket, error_tag = Tag} = State) -> error_logger:info_report(Report), {next_state, StateName, State}. - - -send_dist_data(StateName, State, DHandle, Acc) -> - case erlang:dist_ctrl_get_data(DHandle) of - none -> - erlang:dist_ctrl_get_data_notification(DHandle), - hibernate_after(StateName, State, lists:reverse(Acc)); - Data -> - send_dist_data( - StateName, State, DHandle, - [{next_event, {call, {self(), undefined}}, {application_data, Data}} - |Acc]) - end. - -%% Overload mitigation -eat_msgs(Msg) -> - receive Msg -> eat_msgs(Msg) - after 0 -> ok - end. - -%% When running with erl_dist the stop reason 'normal' -%% would be too silent and prevent cleanup -stop_normal(State) -> - Reason = - case State of - #state{ssl_options = #ssl_options{erl_dist = true}} -> - {shutdown, normal}; - _ -> - normal - end, - {stop, Reason, State}. - -%%-------------------------------------------------------------------- -%% gen_statem callbacks -%%-------------------------------------------------------------------- +%%==================================================================== +%% general gen_statem callbacks +%%==================================================================== terminate(_, _, #state{terminated = true}) -> %% Happens when user closes the connection using ssl:close/1 %% we want to guarantee that Transport:close has been called @@ -1150,7 +1298,6 @@ terminate(_, _, #state{terminated = true}) -> %% returning. In both cases terminate has been run manually %% before run by gen_statem which will end up here ok; - terminate({shutdown, transport_closed} = Reason, _StateName, #state{protocol_cb = Connection, socket = Socket, transport_cb = Transport} = State) -> @@ -1177,7 +1324,6 @@ terminate(Reason, connection, #state{negotiated_version = Version, {BinAlert, ConnectionStates} = terminate_alert(Reason, Version, ConnectionStates0, Connection), Connection:send(Transport, Socket, BinAlert), Connection:close(Reason, Socket, Transport, ConnectionStates, Check); - terminate(Reason, _StateName, #state{transport_cb = Transport, protocol_cb = Connection, socket = Socket } = State) -> @@ -1211,155 +1357,6 @@ format_status(terminate, [_, StateName, State]) -> }}]}]. %%-------------------------------------------------------------------- -%%% -%%-------------------------------------------------------------------- -write_application_data(Data0, {FromPid, _} = From, - #state{socket = Socket, - negotiated_version = Version, - protocol_cb = Connection, - transport_cb = Transport, - connection_states = ConnectionStates0, - socket_options = SockOpts, - ssl_options = #ssl_options{renegotiate_at = RenegotiateAt}} = State) -> - Data = encode_packet(Data0, SockOpts), - - case time_to_renegotiate(Data, ConnectionStates0, RenegotiateAt) of - true -> - Connection:renegotiate(State#state{renegotiation = {true, internal}}, - [{next_event, {call, From}, {application_data, Data0}}]); - false -> - {Msgs, ConnectionStates} = - Connection:encode_data(Data, Version, ConnectionStates0), - NewState = State#state{connection_states = ConnectionStates}, - case Connection:send(Transport, Socket, Msgs) of - ok when FromPid =:= self() -> - hibernate_after(connection, NewState, []); - Error when FromPid =:= self() -> - {stop, {shutdown, Error}, NewState}; - ok -> - hibernate_after(connection, NewState, [{reply, From, ok}]); - Result -> - hibernate_after(connection, NewState, [{reply, From, Result}]) - end - end. - -read_application_data(Data, #state{user_application = {_Mon, Pid}, - socket = Socket, - protocol_cb = Connection, - transport_cb = Transport, - socket_options = SOpts, - bytes_to_read = BytesToRead, - start_or_recv_from = RecvFrom, - timer = Timer, - user_data_buffer = Buffer0, - tracker = Tracker} = State0) -> - Buffer1 = if - Buffer0 =:= <<>> -> Data; - Data =:= <<>> -> Buffer0; - true -> <<Buffer0/binary, Data/binary>> - end, - case get_data(SOpts, BytesToRead, Buffer1) of - {ok, ClientData, Buffer} -> % Send data - case State0 of - #state{ - ssl_options = #ssl_options{erl_dist = true}, - protocol_specific = #{d_handle := DHandle}} -> - State = - State0#state{ - user_data_buffer = Buffer, - bytes_to_read = undefined}, - try erlang:dist_ctrl_put_data(DHandle, ClientData) of - _ - when SOpts#socket_options.active =:= false; - Buffer =:= <<>> -> - %% Passive mode, wait for active once or recv - %% Active and empty, get more data - Connection:next_record_if_active(State); - _ -> %% We have more data - read_application_data(<<>>, State) - catch _:Reason -> - death_row(State, Reason) - end; - _ -> - SocketOpt = - deliver_app_data( - Transport, Socket, SOpts, - ClientData, Pid, RecvFrom, Tracker, Connection), - cancel_timer(Timer), - State = - State0#state{ - user_data_buffer = Buffer, - start_or_recv_from = undefined, - timer = undefined, - bytes_to_read = undefined, - socket_options = SocketOpt - }, - if - SocketOpt#socket_options.active =:= false; - Buffer =:= <<>> -> - %% Passive mode, wait for active once or recv - %% Active and empty, get more data - Connection:next_record_if_active(State); - true -> %% We have more data - read_application_data(<<>>, State) - end - end; - {more, Buffer} -> % no reply, we need more data - Connection:next_record(State0#state{user_data_buffer = Buffer}); - {passive, Buffer} -> - Connection:next_record_if_active(State0#state{user_data_buffer = Buffer}); - {error,_Reason} -> %% Invalid packet in packet mode - deliver_packet_error(Transport, Socket, SOpts, Buffer1, Pid, RecvFrom, Tracker, Connection), - stop_normal(State0) - end. -%%-------------------------------------------------------------------- -%%% -%%-------------------------------------------------------------------- -handle_alert(#alert{level = ?FATAL} = Alert, StateName, - #state{socket = Socket, transport_cb = Transport, - protocol_cb = Connection, - ssl_options = SslOpts, start_or_recv_from = From, host = Host, - port = Port, session = Session, user_application = {_Mon, Pid}, - role = Role, socket_options = Opts, tracker = Tracker} = State) -> - invalidate_session(Role, Host, Port, Session), - log_alert(SslOpts#ssl_options.log_alert, Role, Connection:protocol_name(), - StateName, Alert#alert{role = opposite_role(Role)}), - alert_user(Transport, Tracker, Socket, StateName, Opts, Pid, From, Alert, Role, Connection), - stop_normal(State); - -handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert, - StateName, State) -> - handle_normal_shutdown(Alert, StateName, State), - {stop, {shutdown, peer_close}}; - -handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, - #state{role = Role, ssl_options = SslOpts, protocol_cb = Connection, renegotiation = {true, internal}} = State) -> - log_alert(SslOpts#ssl_options.log_alert, Role, - Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}), - handle_normal_shutdown(Alert, StateName, State), - {stop, {shutdown, peer_close}}; - -handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, - #state{role = Role, - ssl_options = SslOpts, renegotiation = {true, From}, - protocol_cb = Connection} = State0) -> - log_alert(SslOpts#ssl_options.log_alert, Role, - Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}), - gen_statem:reply(From, {error, renegotiation_rejected}), - {Record, State1} = Connection:next_record(State0), - %% Go back to connection! - State = Connection:reinit_handshake_data(State1#state{renegotiation = undefined}), - Connection:next_event(connection, Record, State); - -%% Gracefully log and ignore all other warning alerts -handle_alert(#alert{level = ?WARNING} = Alert, StateName, - #state{ssl_options = SslOpts, protocol_cb = Connection, role = Role} = State0) -> - log_alert(SslOpts#ssl_options.log_alert, Role, - Connection:protocol_name(), StateName, Alert#alert{role = opposite_role(Role)}), - {Record, State} = Connection:next_record(State0), - Connection:next_event(StateName, Record, State). - -%%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- connection_info(#state{sni_hostname = SNIHostname, @@ -1476,7 +1473,6 @@ handle_peer_cert_key(client, _, ECDHKey = public_key:generate_key(PublicKeyParams), PremasterSecret = ssl_handshake:premaster_secret(PublicKey, ECDHKey), master_secret(PremasterSecret, State#state{diffie_hellman_keys = ECDHKey}); - %% We do currently not support cipher suites that use fixed DH. %% If we want to implement that the following clause can be used %% to extract DH parameters form cert. @@ -1496,7 +1492,6 @@ certify_client(#state{client_certificate_requested = true, role = client, = State, Connection) -> Certificate = ssl_handshake:certificate(OwnCert, CertDbHandle, CertDbRef, client), Connection:queue_handshake(Certificate, State); - certify_client(#state{client_certificate_requested = false} = State, _) -> State. @@ -1549,7 +1544,6 @@ certify_client_key_exchange(#encrypted_premaster_secret{premaster_secret= EncPMS #state{private_key = Key} = State, Connection) -> PremasterSecret = ssl_handshake:premaster_secret(EncPMS, Key), calculate_master_secret(PremasterSecret, State, Connection, certify, cipher); - certify_client_key_exchange(#client_diffie_hellman_public{dh_public = ClientPublicDhKey}, #state{diffie_hellman_params = #'DHParameter'{} = Params, diffie_hellman_keys = {_, ServerDhPrivateKey}} = State, @@ -1561,14 +1555,12 @@ certify_client_key_exchange(#client_ec_diffie_hellman_public{dh_public = ClientP #state{diffie_hellman_keys = ECDHKey} = State, Connection) -> PremasterSecret = ssl_handshake:premaster_secret(#'ECPoint'{point = ClientPublicEcDhPoint}, ECDHKey), calculate_master_secret(PremasterSecret, State, Connection, certify, cipher); - certify_client_key_exchange(#client_psk_identity{} = ClientKey, #state{ssl_options = #ssl_options{user_lookup_fun = PSKLookup}} = State0, Connection) -> PremasterSecret = ssl_handshake:premaster_secret(ClientKey, PSKLookup), calculate_master_secret(PremasterSecret, State0, Connection, certify, cipher); - certify_client_key_exchange(#client_dhe_psk_identity{} = ClientKey, #state{diffie_hellman_params = #'DHParameter'{} = Params, diffie_hellman_keys = {_, ServerDhPrivateKey}, @@ -1578,7 +1570,6 @@ certify_client_key_exchange(#client_dhe_psk_identity{} = ClientKey, PremasterSecret = ssl_handshake:premaster_secret(ClientKey, ServerDhPrivateKey, Params, PSKLookup), calculate_master_secret(PremasterSecret, State0, Connection, certify, cipher); - certify_client_key_exchange(#client_ecdhe_psk_identity{} = ClientKey, #state{diffie_hellman_keys = ServerEcDhPrivateKey, ssl_options = @@ -1587,7 +1578,6 @@ certify_client_key_exchange(#client_ecdhe_psk_identity{} = ClientKey, PremasterSecret = ssl_handshake:premaster_secret(ClientKey, ServerEcDhPrivateKey, PSKLookup), calculate_master_secret(PremasterSecret, State, Connection, certify, cipher); - certify_client_key_exchange(#client_rsa_psk_identity{} = ClientKey, #state{private_key = Key, ssl_options = @@ -1595,7 +1585,6 @@ certify_client_key_exchange(#client_rsa_psk_identity{} = ClientKey, Connection) -> PremasterSecret = ssl_handshake:premaster_secret(ClientKey, Key, PSKLookup), calculate_master_secret(PremasterSecret, State0, Connection, certify, cipher); - certify_client_key_exchange(#client_srp_public{} = ClientKey, #state{srp_params = Params, srp_keys = Key @@ -1610,7 +1599,6 @@ certify_server(#state{key_algorithm = Algo} = State, _) when Algo == dh_anon; Algo == ecdhe_psk; Algo == srp_anon -> State; - certify_server(#state{cert_db = CertDbHandle, cert_db_ref = CertDbRef, session = #session{own_certificate = OwnCert}} = State, Connection) -> @@ -1644,7 +1632,6 @@ key_exchange(#state{role = server, key_algorithm = Algo, PrivateKey}), State = Connection:queue_handshake(Msg, State0), State#state{diffie_hellman_keys = DHKeys}; - key_exchange(#state{role = server, private_key = Key, key_algorithm = Algo} = State, _) when Algo == ecdh_ecdsa; Algo == ecdh_rsa -> State#state{diffie_hellman_keys = Key}; @@ -1670,7 +1657,6 @@ key_exchange(#state{role = server, key_algorithm = Algo, PrivateKey}), State = Connection:queue_handshake(Msg, State0), State#state{diffie_hellman_keys = ECDHKeys}; - key_exchange(#state{role = server, key_algorithm = psk, ssl_options = #ssl_options{psk_identity = undefined}} = State, _) -> State; @@ -1691,7 +1677,6 @@ key_exchange(#state{role = server, key_algorithm = psk, ServerRandom, PrivateKey}), Connection:queue_handshake(Msg, State0); - key_exchange(#state{role = server, key_algorithm = dhe_psk, ssl_options = #ssl_options{psk_identity = PskIdentityHint}, hashsign_algorithm = HashSignAlgo, @@ -1713,7 +1698,6 @@ key_exchange(#state{role = server, key_algorithm = dhe_psk, PrivateKey}), State = Connection:queue_handshake(Msg, State0), State#state{diffie_hellman_keys = DHKeys}; - key_exchange(#state{role = server, key_algorithm = ecdhe_psk, ssl_options = #ssl_options{psk_identity = PskIdentityHint}, hashsign_algorithm = HashSignAlgo, @@ -1735,7 +1719,6 @@ key_exchange(#state{role = server, key_algorithm = ecdhe_psk, PrivateKey}), State = Connection:queue_handshake(Msg, State0), State#state{diffie_hellman_keys = ECDHKeys}; - key_exchange(#state{role = server, key_algorithm = rsa_psk, ssl_options = #ssl_options{psk_identity = undefined}} = State, _) -> State; @@ -1756,7 +1739,6 @@ key_exchange(#state{role = server, key_algorithm = rsa_psk, ServerRandom, PrivateKey}), Connection:queue_handshake(Msg, State0); - key_exchange(#state{role = server, key_algorithm = Algo, ssl_options = #ssl_options{user_lookup_fun = LookupFun}, hashsign_algorithm = HashSignAlgo, @@ -1787,7 +1769,6 @@ key_exchange(#state{role = server, key_algorithm = Algo, State = Connection:queue_handshake(Msg, State0), State#state{srp_params = SrpParams, srp_keys = Keys}; - key_exchange(#state{role = client, key_algorithm = rsa, public_key_info = PublicKeyInfo, @@ -1795,7 +1776,6 @@ key_exchange(#state{role = client, premaster_secret = PremasterSecret} = State0, Connection) -> Msg = rsa_key_exchange(ssl:tls_version(Version), PremasterSecret, PublicKeyInfo), Connection:queue_handshake(Msg, State0); - key_exchange(#state{role = client, key_algorithm = Algorithm, negotiated_version = Version, @@ -1816,7 +1796,6 @@ key_exchange(#state{role = client, Algorithm == ecdh_anon -> Msg = ssl_handshake:key_exchange(client, ssl:tls_version(Version), {ecdh, Keys}), Connection:queue_handshake(Msg, State0); - key_exchange(#state{role = client, ssl_options = SslOpts, key_algorithm = psk, @@ -1824,7 +1803,6 @@ key_exchange(#state{role = client, Msg = ssl_handshake:key_exchange(client, ssl:tls_version(Version), {psk, SslOpts#ssl_options.psk_identity}), Connection:queue_handshake(Msg, State0); - key_exchange(#state{role = client, ssl_options = SslOpts, key_algorithm = dhe_psk, @@ -1855,7 +1833,6 @@ key_exchange(#state{role = client, Msg = rsa_psk_key_exchange(ssl:tls_version(Version), SslOpts#ssl_options.psk_identity, PremasterSecret, PublicKeyInfo), Connection:queue_handshake(Msg, State0); - key_exchange(#state{role = client, key_algorithm = Algorithm, negotiated_version = Version, @@ -2244,10 +2221,7 @@ set_socket_opts(_,_, _, [{active, _} = Opt| _], SockOpts, _) -> set_socket_opts(ConnectionCb, Transport, Socket, [Opt | Opts], SockOpts, Other) -> set_socket_opts(ConnectionCb, Transport, Socket, Opts, SockOpts, [Opt | Other]). -start_or_recv_cancel_timer(infinity, _RecvFrom) -> - undefined; -start_or_recv_cancel_timer(Timeout, RecvFrom) -> - erlang:send_after(Timeout, self(), {cancel_start_or_recv, RecvFrom}). + hibernate_after(connection = StateName, #state{ssl_options=#ssl_options{hibernate_after = HibernateAfter}} = State, @@ -2632,45 +2606,6 @@ log_alert(true, Role, ProtocolName, StateName, Alert) -> log_alert(false, _, _, _, _) -> ok. -handle_own_alert(Alert, Version, StateName, - #state{role = Role, - transport_cb = Transport, - socket = Socket, - protocol_cb = Connection, - connection_states = ConnectionStates, - ssl_options = SslOpts} = State) -> - try %% Try to tell the other side - {BinMsg, _} = - Connection:encode_alert(Alert, Version, ConnectionStates), - Connection:send(Transport, Socket, BinMsg) - catch _:_ -> %% Can crash if we are in a uninitialized state - ignore - end, - try %% Try to tell the local user - log_alert(SslOpts#ssl_options.log_alert, Role, Connection:protocol_name(), StateName, Alert#alert{role = Role}), - handle_normal_shutdown(Alert,StateName, State) - catch _:_ -> - ok - end, - {stop, {shutdown, own_alert}}. - -handle_normal_shutdown(Alert, _, #state{socket = Socket, - transport_cb = Transport, - protocol_cb = Connection, - start_or_recv_from = StartFrom, - tracker = Tracker, - role = Role, renegotiation = {false, first}}) -> - alert_user(Transport, Tracker,Socket, StartFrom, Alert, Role, Connection); - -handle_normal_shutdown(Alert, StateName, #state{socket = Socket, - socket_options = Opts, - transport_cb = Transport, - protocol_cb = Connection, - user_application = {_Mon, Pid}, - tracker = Tracker, - start_or_recv_from = RecvFrom, role = Role}) -> - alert_user(Transport, Tracker, Socket, StateName, Opts, Pid, RecvFrom, Alert, Role, Connection). - invalidate_session(client, Host, Port, Session) -> ssl_manager:invalidate_session(Host, Port, Session); invalidate_session(server, _, Port, Session) -> @@ -2727,3 +2662,34 @@ new_emulated([], EmOpts) -> EmOpts; new_emulated(NewEmOpts, _) -> NewEmOpts. +%%---------------Erlang distribution -------------------------------------- + +send_dist_data(StateName, State, DHandle, Acc) -> + case erlang:dist_ctrl_get_data(DHandle) of + none -> + erlang:dist_ctrl_get_data_notification(DHandle), + hibernate_after(StateName, State, lists:reverse(Acc)); + Data -> + send_dist_data( + StateName, State, DHandle, + [{next_event, {call, {self(), undefined}}, {application_data, Data}} + |Acc]) + end. + +%% Overload mitigation +eat_msgs(Msg) -> + receive Msg -> eat_msgs(Msg) + after 0 -> ok + end. + +%% When running with erl_dist the stop reason 'normal' +%% would be too silent and prevent cleanup +stop_normal(State) -> + Reason = + case State of + #state{ssl_options = #ssl_options{erl_dist = true}} -> + {shutdown, normal}; + _ -> + normal + end, + {stop, Reason, State}. diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl index 8681765284..1560340ccf 100644 --- a/lib/ssl/src/ssl_handshake.erl +++ b/lib/ssl/src/ssl_handshake.erl @@ -44,46 +44,44 @@ #client_key_exchange{} | #finished{} | #certificate_verify{} | #hello_request{} | #next_protocol{}. -%% Handshake messages +%% Create handshake messages -export([hello_request/0, server_hello/4, server_hello_done/0, - certificate/4, certificate_request/5, key_exchange/3, + certificate/4, client_certificate_verify/6, certificate_request/5, key_exchange/3, finished/5, next_protocol/1]). %% Handle handshake messages --export([certify/7, client_certificate_verify/6, certificate_verify/6, verify_signature/5, +-export([certify/7, certificate_verify/6, verify_signature/5, master_secret/4, server_key_exchange_hash/2, verify_connection/6, - init_handshake_history/0, update_handshake_history/3, verify_server_key/5 + init_handshake_history/0, update_handshake_history/3, verify_server_key/5, + select_version/3 ]). -%% Encode/Decode +%% Encode -export([encode_handshake/2, encode_hello_extensions/1, - encode_client_protocol_negotiation/2, encode_protocols_advertised_on_server/1, - decode_handshake/3, decode_hello_extensions/1, + encode_client_protocol_negotiation/2, encode_protocols_advertised_on_server/1]). +%% Decode +-export([decode_handshake/3, decode_hello_extensions/1, decode_server_key/3, decode_client_key/3, decode_suites/2 ]). %% Cipher suites handling --export([available_suites/2, available_signature_algs/2, cipher_suites/2, - select_session/11, supported_ecc/1, available_signature_algs/4]). +-export([available_suites/2, available_signature_algs/2, available_signature_algs/4, + cipher_suites/2, prf/6, select_session/11, supported_ecc/1, + premaster_secret/2, premaster_secret/3, premaster_secret/4]). %% Extensions handling -export([client_hello_extensions/5, handle_client_hello_extensions/9, %% Returns server hello extensions - handle_server_hello_extensions/9, select_curve/2, select_curve/3 + handle_server_hello_extensions/9, select_curve/2, select_curve/3, + select_hashsign/4, select_hashsign/5, + select_hashsign_algs/3 ]). -%% MISC --export([select_version/3, prf/6, select_hashsign/4, select_hashsign/5, - select_hashsign_algs/3, - premaster_secret/2, premaster_secret/3, premaster_secret/4]). - %%==================================================================== -%% Internal application API +%% Create handshake messages %%==================================================================== -%% ---------- Create handshake messages ---------- - %%-------------------------------------------------------------------- -spec hello_request() -> #hello_request{}. %% @@ -119,31 +117,6 @@ server_hello(SessionId, Version, ConnectionStates, Extensions) -> server_hello_done() -> #server_hello_done{}. -client_hello_extensions(Version, CipherSuites, - #ssl_options{signature_algs = SupportedHashSigns, - eccs = SupportedECCs} = SslOpts, ConnectionStates, Renegotiation) -> - {EcPointFormats, EllipticCurves} = - case advertises_ec_ciphers(lists:map(fun ssl_cipher:suite_definition/1, CipherSuites)) of - true -> - client_ecc_extensions(SupportedECCs); - false -> - {undefined, undefined} - end, - SRP = srp_user(SslOpts), - - #hello_extensions{ - renegotiation_info = renegotiation_info(tls_record, client, - ConnectionStates, Renegotiation), - srp = SRP, - signature_algs = available_signature_algs(SupportedHashSigns, Version), - ec_point_formats = EcPointFormats, - elliptic_curves = EllipticCurves, - alpn = encode_alpn(SslOpts#ssl_options.alpn_advertised_protocols, Renegotiation), - next_protocol_negotiation = - encode_client_protocol_negotiation(SslOpts#ssl_options.next_protocol_selector, - Renegotiation), - sni = sni(SslOpts#ssl_options.server_name_indication)}. - %%-------------------------------------------------------------------- -spec certificate(der_cert(), db_handle(), certdb_ref(), client | server) -> #certificate{} | #alert{}. %% @@ -171,14 +144,6 @@ certificate(OwnCert, CertDbHandle, CertDbRef, server) -> end. %%-------------------------------------------------------------------- --spec next_protocol(binary()) -> #next_protocol{}. -%% -%% Description: Creates a next protocol message -%%------------------------------------------------------------------- -next_protocol(SelectedProtocol) -> - #next_protocol{selected_protocol = SelectedProtocol}. - -%%-------------------------------------------------------------------- -spec client_certificate_verify(undefined | der_cert(), binary(), ssl_record:ssl_version(), term(), public_key:private_key(), ssl_handshake_history()) -> @@ -346,22 +311,51 @@ key_exchange(server, Version, {srp, {PublicKey, _}, finished(Version, Role, PrfAlgo, MasterSecret, {Handshake, _}) -> % use the current handshake #finished{verify_data = calc_finished(Version, Role, PrfAlgo, MasterSecret, Handshake)}. +%%-------------------------------------------------------------------- +-spec next_protocol(binary()) -> #next_protocol{}. +%% +%% Description: Creates a next protocol message +%%------------------------------------------------------------------- +next_protocol(SelectedProtocol) -> + #next_protocol{selected_protocol = SelectedProtocol}. -%% ---------- Handle handshake messages ---------- +%%==================================================================== +%% Handle handshake messages +%%==================================================================== +%%-------------------------------------------------------------------- +-spec certify(#certificate{}, db_handle(), certdb_ref(), #ssl_options{}, term(), + client | server, inet:hostname() | inet:ip_address()) -> {der_cert(), public_key_info()} | #alert{}. +%% +%% Description: Handles a certificate handshake message +%%-------------------------------------------------------------------- +certify(#certificate{asn1_certificates = ASN1Certs}, CertDbHandle, CertDbRef, + Opts, CRLDbHandle, Role, Host) -> -verify_server_key(#server_key_params{params_bin = EncParams, - signature = Signature}, - HashSign = {HashAlgo, _}, - ConnectionStates, Version, PubKeyInfo) -> - #{security_parameters := SecParams} = - ssl_record:pending_connection_state(ConnectionStates, read), - #security_parameters{client_random = ClientRandom, - server_random = ServerRandom} = SecParams, - Hash = server_key_exchange_hash(HashAlgo, - <<ClientRandom/binary, - ServerRandom/binary, - EncParams/binary>>), - verify_signature(Version, Hash, HashSign, Signature, PubKeyInfo). + ServerName = server_name(Opts#ssl_options.server_name_indication, Host, Role), + [PeerCert | _] = ASN1Certs, + try + {TrustedCert, CertPath} = + ssl_certificate:trusted_cert_and_path(ASN1Certs, CertDbHandle, CertDbRef, + Opts#ssl_options.partial_chain), + ValidationFunAndState = validation_fun_and_state(Opts#ssl_options.verify_fun, Role, + CertDbHandle, CertDbRef, ServerName, + Opts#ssl_options.crl_check, CRLDbHandle, CertPath), + case public_key:pkix_path_validation(TrustedCert, + CertPath, + [{max_path_length, Opts#ssl_options.depth}, + {verify_fun, ValidationFunAndState}]) of + {ok, {PublicKeyInfo,_}} -> + {PeerCert, PublicKeyInfo}; + {error, Reason} -> + path_validation_alert(Reason) + end + catch + error:{badmatch,{asn1, Asn1Reason}} -> + %% ASN-1 decode of certificate somehow failed + ?ALERT_REC(?FATAL, ?CERTIFICATE_UNKNOWN, {failed_to_decode_certificate, Asn1Reason}); + error:OtherReason -> + ?ALERT_REC(?FATAL, ?INTERNAL_ERROR, {unexpected_error, OtherReason}) + end. %%-------------------------------------------------------------------- -spec certificate_verify(binary(), public_key_info(), ssl_record:ssl_version(), term(), @@ -404,43 +398,55 @@ verify_signature(_, Hash, {HashAlgo, _SignAlg}, Signature, {?'id-ecPublicKey', PublicKey, PublicKeyParams}) -> public_key:verify({digest, Hash}, HashAlgo, Signature, {PublicKey, PublicKeyParams}). - %%-------------------------------------------------------------------- --spec certify(#certificate{}, db_handle(), certdb_ref(), #ssl_options{}, term(), - client | server, inet:hostname() | inet:ip_address()) -> {der_cert(), public_key_info()} | #alert{}. +-spec master_secret(ssl_record:ssl_version(), #session{} | binary(), ssl_record:connection_states(), + client | server) -> {binary(), ssl_record:connection_states()} | #alert{}. %% -%% Description: Handles a certificate handshake message -%%-------------------------------------------------------------------- -certify(#certificate{asn1_certificates = ASN1Certs}, CertDbHandle, CertDbRef, - Opts, CRLDbHandle, Role, Host) -> +%% Description: Sets or calculates the master secret and calculate keys, +%% updating the pending connection states. The Mastersecret and the update +%% connection states are returned or an alert if the calculation fails. +%%------------------------------------------------------------------- +master_secret(Version, #session{master_secret = Mastersecret}, + ConnectionStates, Role) -> + #{security_parameters := SecParams} = + ssl_record:pending_connection_state(ConnectionStates, read), + try master_secret(Version, Mastersecret, SecParams, + ConnectionStates, Role) + catch + exit:_ -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, key_calculation_failure) + end; - ServerName = server_name(Opts#ssl_options.server_name_indication, Host, Role), - [PeerCert | _] = ASN1Certs, - try - {TrustedCert, CertPath} = - ssl_certificate:trusted_cert_and_path(ASN1Certs, CertDbHandle, CertDbRef, - Opts#ssl_options.partial_chain), - ValidationFunAndState = validation_fun_and_state(Opts#ssl_options.verify_fun, Role, - CertDbHandle, CertDbRef, ServerName, - Opts#ssl_options.crl_check, CRLDbHandle, CertPath), - case public_key:pkix_path_validation(TrustedCert, - CertPath, - [{max_path_length, Opts#ssl_options.depth}, - {verify_fun, ValidationFunAndState}]) of - {ok, {PublicKeyInfo,_}} -> - {PeerCert, PublicKeyInfo}; - {error, Reason} -> - path_validation_alert(Reason) - end +master_secret(Version, PremasterSecret, ConnectionStates, Role) -> + #{security_parameters := SecParams} = + ssl_record:pending_connection_state(ConnectionStates, read), + + #security_parameters{prf_algorithm = PrfAlgo, + client_random = ClientRandom, + server_random = ServerRandom} = SecParams, + try master_secret(Version, + calc_master_secret(Version,PrfAlgo,PremasterSecret, + ClientRandom, ServerRandom), + SecParams, ConnectionStates, Role) catch - error:{badmatch,{asn1, Asn1Reason}} -> - %% ASN-1 decode of certificate somehow failed - ?ALERT_REC(?FATAL, ?CERTIFICATE_UNKNOWN, {failed_to_decode_certificate, Asn1Reason}); - error:OtherReason -> - ?ALERT_REC(?FATAL, ?INTERNAL_ERROR, {unexpected_error, OtherReason}) + exit:_ -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, master_secret_calculation_failure) end. %%-------------------------------------------------------------------- +-spec server_key_exchange_hash(md5sha | md5 | sha | sha224 |sha256 | sha384 | sha512, binary()) -> binary(). +%% +%% Description: Calculate server key exchange hash +%%-------------------------------------------------------------------- +server_key_exchange_hash(md5sha, Value) -> + MD5 = crypto:hash(md5, Value), + SHA = crypto:hash(sha, Value), + <<MD5/binary, SHA/binary>>; + +server_key_exchange_hash(Hash, Value) -> + crypto:hash(Hash, Value). + +%%-------------------------------------------------------------------- -spec verify_connection(ssl_record:ssl_version(), #finished{}, client | server, integer(), binary(), ssl_handshake_history()) -> verified | #alert{}. %% @@ -487,292 +493,31 @@ update_handshake_history(Handshake, % special-case SSL2 client hello update_handshake_history({Handshake0, _Prev}, Data, _) -> {[Data|Handshake0], Handshake0}. -%% %%-------------------------------------------------------------------- -%% -spec decrypt_premaster_secret(binary(), #'RSAPrivateKey'{}) -> binary(). - -%% %% -%% %% Description: Public key decryption using the private key. -%% %%-------------------------------------------------------------------- -%% decrypt_premaster_secret(Secret, RSAPrivateKey) -> -%% try public_key:decrypt_private(Secret, RSAPrivateKey, -%% [{rsa_pad, rsa_pkcs1_padding}]) -%% catch -%% _:_ -> -%% throw(?ALERT_REC(?FATAL, ?DECRYPT_ERROR)) -%% end. - -premaster_secret(OtherPublicDhKey, MyPrivateKey, #'DHParameter'{} = Params) -> - try - public_key:compute_key(OtherPublicDhKey, MyPrivateKey, Params) - catch - error:computation_failed -> - throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) - end; -premaster_secret(PublicDhKey, PrivateDhKey, #server_dh_params{dh_p = Prime, dh_g = Base}) -> - try - crypto:compute_key(dh, PublicDhKey, PrivateDhKey, [Prime, Base]) - catch - error:computation_failed -> - throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) - end; -premaster_secret(#client_srp_public{srp_a = ClientPublicKey}, ServerKey, #srp_user{prime = Prime, - verifier = Verifier}) -> - case crypto:compute_key(srp, ClientPublicKey, ServerKey, {host, [Verifier, Prime, '6a']}) of - error -> - throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)); - PremasterSecret -> - PremasterSecret - end; -premaster_secret(#server_srp_params{srp_n = Prime, srp_g = Generator, srp_s = Salt, srp_b = Public}, - ClientKeys, {Username, Password}) -> - case ssl_srp_primes:check_srp_params(Generator, Prime) of - ok -> - DerivedKey = crypto:hash(sha, [Salt, crypto:hash(sha, [Username, <<$:>>, Password])]), - case crypto:compute_key(srp, Public, ClientKeys, {user, [DerivedKey, Prime, Generator, '6a']}) of - error -> - throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)); - PremasterSecret -> - PremasterSecret - end; - _ -> - throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) - end; -premaster_secret(#client_rsa_psk_identity{ - identity = PSKIdentity, - exchange_keys = #encrypted_premaster_secret{premaster_secret = EncPMS} - }, #'RSAPrivateKey'{} = Key, PSKLookup) -> - PremasterSecret = premaster_secret(EncPMS, Key), - psk_secret(PSKIdentity, PSKLookup, PremasterSecret); -premaster_secret(#server_dhe_psk_params{ - hint = IdentityHint, - dh_params = #server_dh_params{dh_y = PublicDhKey} = Params}, - PrivateDhKey, - LookupFun) -> - PremasterSecret = premaster_secret(PublicDhKey, PrivateDhKey, Params), - psk_secret(IdentityHint, LookupFun, PremasterSecret); - -premaster_secret(#server_ecdhe_psk_params{ - hint = IdentityHint, - dh_params = #server_ecdh_params{ - public = ECServerPubKey}}, - PrivateEcDhKey, - LookupFun) -> - PremasterSecret = premaster_secret(#'ECPoint'{point = ECServerPubKey}, PrivateEcDhKey), - psk_secret(IdentityHint, LookupFun, PremasterSecret); - -premaster_secret({rsa_psk, PSKIdentity}, PSKLookup, RSAPremasterSecret) -> - psk_secret(PSKIdentity, PSKLookup, RSAPremasterSecret); - -premaster_secret(#client_ecdhe_psk_identity{ - identity = PSKIdentity, - dh_public = PublicEcDhPoint}, PrivateEcDhKey, PSKLookup) -> - PremasterSecret = premaster_secret(#'ECPoint'{point = PublicEcDhPoint}, PrivateEcDhKey), - psk_secret(PSKIdentity, PSKLookup, PremasterSecret). - -premaster_secret(#client_dhe_psk_identity{ - identity = PSKIdentity, - dh_public = PublicDhKey}, PrivateKey, #'DHParameter'{} = Params, PSKLookup) -> - PremasterSecret = premaster_secret(PublicDhKey, PrivateKey, Params), - psk_secret(PSKIdentity, PSKLookup, PremasterSecret). - -premaster_secret(#client_psk_identity{identity = PSKIdentity}, PSKLookup) -> - psk_secret(PSKIdentity, PSKLookup); -premaster_secret({psk, PSKIdentity}, PSKLookup) -> - psk_secret(PSKIdentity, PSKLookup); -premaster_secret(#'ECPoint'{} = ECPoint, #'ECPrivateKey'{} = ECDHKeys) -> - public_key:compute_key(ECPoint, ECDHKeys); -premaster_secret(EncSecret, #'RSAPrivateKey'{} = RSAPrivateKey) -> - try public_key:decrypt_private(EncSecret, RSAPrivateKey, - [{rsa_pad, rsa_pkcs1_padding}]) - catch - _:_ -> - throw(?ALERT_REC(?FATAL, ?DECRYPT_ERROR)) - end. -%%-------------------------------------------------------------------- --spec server_key_exchange_hash(md5sha | md5 | sha | sha224 |sha256 | sha384 | sha512, binary()) -> binary(). -%% -%% Description: Calculate server key exchange hash -%%-------------------------------------------------------------------- -server_key_exchange_hash(md5sha, Value) -> - MD5 = crypto:hash(md5, Value), - SHA = crypto:hash(sha, Value), - <<MD5/binary, SHA/binary>>; - -server_key_exchange_hash(Hash, Value) -> - crypto:hash(Hash, Value). -%%-------------------------------------------------------------------- --spec prf(ssl_record:ssl_version(), non_neg_integer(), binary(), binary(), [binary()], non_neg_integer()) -> - {ok, binary()} | {error, undefined}. -%% -%% Description: use the TLS PRF to generate key material -%%-------------------------------------------------------------------- -prf({3,0}, _, _, _, _, _) -> - {error, undefined}; -prf({3,_N}, PRFAlgo, Secret, Label, Seed, WantedLength) -> - {ok, tls_v1:prf(PRFAlgo, Secret, Label, Seed, WantedLength)}. - - -%%-------------------------------------------------------------------- --spec select_hashsign(#hash_sign_algos{} | undefined, undefined | binary(), - atom(), [atom()], ssl_record:ssl_version()) -> - {atom(), atom()} | undefined | #alert{}. - -%% -%% Description: Handles signature_algorithms hello extension (server) -%%-------------------------------------------------------------------- -select_hashsign(_, undefined, _, _, _Version) -> - {null, anon}; -%% The signature_algorithms extension was introduced with TLS 1.2. Ignore it if we have -%% negotiated a lower version. -select_hashsign(HashSigns, Cert, KeyExAlgo, - undefined, {Major, Minor} = Version) when Major >= 3 andalso Minor >= 3-> - select_hashsign(HashSigns, Cert, KeyExAlgo, tls_v1:default_signature_algs(Version), Version); -select_hashsign(#hash_sign_algos{hash_sign_algos = HashSigns}, Cert, KeyExAlgo, SupportedHashSigns, - {Major, Minor}) when Major >= 3 andalso Minor >= 3 -> - #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp), - #'OTPCertificate'{tbsCertificate = TBSCert, - signatureAlgorithm = {_,SignAlgo, _}} = public_key:pkix_decode_cert(Cert, otp), - #'OTPSubjectPublicKeyInfo'{algorithm = {_, SubjAlgo, _}} = - TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo, - - Sign = sign_algo(SignAlgo), - SubSing = sign_algo(SubjAlgo), - - case lists:filter(fun({_, S} = Algos) when S == Sign -> - is_acceptable_hash_sign(Algos, Sign, - SubSing, KeyExAlgo, SupportedHashSigns); - (_) -> - false - end, HashSigns) of - [] -> - ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_signature_algorithm); - [HashSign | _] -> - HashSign - end; -select_hashsign(_, Cert, _, _, Version) -> - #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp), - #'OTPSubjectPublicKeyInfo'{algorithm = {_,Algo, _}} = TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo, - select_hashsign_algs(undefined, Algo, Version). -%%-------------------------------------------------------------------- --spec select_hashsign(#certificate_request{}, binary(), - [atom()], ssl_record:ssl_version()) -> - {atom(), atom()} | #alert{}. - -%% -%% Description: Handles signature algorithms selection for certificate requests (client) -%%-------------------------------------------------------------------- -select_hashsign(#certificate_request{}, undefined, _, {Major, Minor}) when Major >= 3 andalso Minor >= 3-> - %% There client does not have a certificate and will send an empty reply, the server may fail - %% or accept the connection by its own preference. No signature algorihms needed as there is - %% no certificate to verify. - {undefined, undefined}; - -select_hashsign(#certificate_request{hashsign_algorithms = #hash_sign_algos{hash_sign_algos = HashSigns}, - certificate_types = Types}, Cert, SupportedHashSigns, - {Major, Minor}) when Major >= 3 andalso Minor >= 3-> - #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp), - #'OTPCertificate'{tbsCertificate = TBSCert, - signatureAlgorithm = {_,SignAlgo, _}} = public_key:pkix_decode_cert(Cert, otp), - #'OTPSubjectPublicKeyInfo'{algorithm = {_, SubjAlgo, _}} = - TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo, - - Sign = sign_algo(SignAlgo), - SubSign = sign_algo(SubjAlgo), - - case is_acceptable_cert_type(SubSign, HashSigns, Types) andalso is_supported_sign(Sign, HashSigns) of - true -> - case lists:filter(fun({_, S} = Algos) when S == SubSign -> - is_acceptable_hash_sign(Algos, SupportedHashSigns); - (_) -> - false - end, HashSigns) of - [] -> - ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_signature_algorithm); - [HashSign | _] -> - HashSign - end; - false -> - ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_signature_algorithm) - end; -select_hashsign(#certificate_request{}, Cert, _, Version) -> - select_hashsign(undefined, Cert, undefined, [], Version). - -%%-------------------------------------------------------------------- --spec select_hashsign_algs({atom(), atom()}| undefined, oid(), ssl_record:ssl_version()) -> - {atom(), atom()}. - -%% Description: For TLS 1.2 hash function and signature algorithm pairs can be -%% negotiated with the signature_algorithms extension, -%% for previous versions always use appropriate defaults. -%% RFC 5246, Sect. 7.4.1.4.1. Signature Algorithms -%% If the client does not send the signature_algorithms extension, the -%% server MUST do the following: (e.i defaults for TLS 1.2) -%% -%% - If the negotiated key exchange algorithm is one of (RSA, DHE_RSA, -%% DH_RSA, RSA_PSK, ECDH_RSA, ECDHE_RSA), behave as if client had -%% sent the value {sha1,rsa}. -%% -%% - If the negotiated key exchange algorithm is one of (DHE_DSS, -%% DH_DSS), behave as if the client had sent the value {sha1,dsa}. -%% -%% - If the negotiated key exchange algorithm is one of (ECDH_ECDSA, -%% ECDHE_ECDSA), behave as if the client had sent value {sha1,ecdsa}. - -%%-------------------------------------------------------------------- -select_hashsign_algs(HashSign, _, {Major, Minor}) when HashSign =/= undefined andalso - Major >= 3 andalso Minor >= 3 -> - HashSign; -select_hashsign_algs(undefined, ?rsaEncryption, {Major, Minor}) when Major >= 3 andalso Minor >= 3 -> - {sha, rsa}; -select_hashsign_algs(undefined,?'id-ecPublicKey', _) -> - {sha, ecdsa}; -select_hashsign_algs(undefined, ?rsaEncryption, _) -> - {md5sha, rsa}; -select_hashsign_algs(undefined, ?'id-dsa', _) -> - {sha, dsa}. - - -%%-------------------------------------------------------------------- --spec master_secret(ssl_record:ssl_version(), #session{} | binary(), ssl_record:connection_states(), - client | server) -> {binary(), ssl_record:connection_states()} | #alert{}. -%% -%% Description: Sets or calculates the master secret and calculate keys, -%% updating the pending connection states. The Mastersecret and the update -%% connection states are returned or an alert if the calculation fails. -%%------------------------------------------------------------------- -master_secret(Version, #session{master_secret = Mastersecret}, - ConnectionStates, Role) -> - #{security_parameters := SecParams} = - ssl_record:pending_connection_state(ConnectionStates, read), - try master_secret(Version, Mastersecret, SecParams, - ConnectionStates, Role) - catch - exit:_ -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, key_calculation_failure) - end; - -master_secret(Version, PremasterSecret, ConnectionStates, Role) -> +verify_server_key(#server_key_params{params_bin = EncParams, + signature = Signature}, + HashSign = {HashAlgo, _}, + ConnectionStates, Version, PubKeyInfo) -> #{security_parameters := SecParams} = ssl_record:pending_connection_state(ConnectionStates, read), - - #security_parameters{prf_algorithm = PrfAlgo, - client_random = ClientRandom, + #security_parameters{client_random = ClientRandom, server_random = ServerRandom} = SecParams, - try master_secret(Version, - calc_master_secret(Version,PrfAlgo,PremasterSecret, - ClientRandom, ServerRandom), - SecParams, ConnectionStates, Role) - catch - exit:_ -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, master_secret_calculation_failure) - end. + Hash = server_key_exchange_hash(HashAlgo, + <<ClientRandom/binary, + ServerRandom/binary, + EncParams/binary>>), + verify_signature(Version, Hash, HashSign, Signature, PubKeyInfo). + +select_version(RecordCB, ClientVersion, Versions) -> + do_select_version(RecordCB, ClientVersion, Versions). + +%%==================================================================== +%% Encode handshake +%%==================================================================== -%%-------------Encode/Decode -------------------------------- encode_handshake(#next_protocol{selected_protocol = SelectedProtocol}, _Version) -> PaddingLength = 32 - ((byte_size(SelectedProtocol) + 2) rem 32), {?NEXT_PROTOCOL, <<?BYTE((byte_size(SelectedProtocol))), SelectedProtocol/binary, ?BYTE(PaddingLength), 0:(PaddingLength * 8)>>}; - encode_handshake(#server_hello{server_version = {Major, Minor}, random = Random, session_id = Session_ID, @@ -894,71 +639,6 @@ encode_hello_extensions([#sni{hostname = Hostname} | Rest], Acc) -> ?UINT16(HostLen), HostnameBin/binary, Acc/binary>>). -enc_server_key_exchange(Version, Params, {HashAlgo, SignAlgo}, - ClientRandom, ServerRandom, PrivateKey) -> - EncParams = encode_server_key(Params), - case HashAlgo of - null -> - #server_key_params{params = Params, - params_bin = EncParams, - hashsign = {null, anon}, - signature = <<>>}; - _ -> - Hash = - server_key_exchange_hash(HashAlgo, <<ClientRandom/binary, - ServerRandom/binary, - EncParams/binary>>), - Signature = digitally_signed(Version, Hash, HashAlgo, PrivateKey), - #server_key_params{params = Params, - params_bin = EncParams, - hashsign = {HashAlgo, SignAlgo}, - signature = Signature} - end. - -%%-------------------------------------------------------------------- --spec decode_client_key(binary(), ssl_cipher:key_algo(), ssl_record:ssl_version()) -> - #encrypted_premaster_secret{} - | #client_diffie_hellman_public{} - | #client_ec_diffie_hellman_public{} - | #client_psk_identity{} - | #client_dhe_psk_identity{} - | #client_ecdhe_psk_identity{} - | #client_rsa_psk_identity{} - | #client_srp_public{}. -%% -%% Description: Decode client_key data and return appropriate type -%%-------------------------------------------------------------------- -decode_client_key(ClientKey, Type, Version) -> - dec_client_key(ClientKey, key_exchange_alg(Type), Version). - -%%-------------------------------------------------------------------- --spec decode_server_key(binary(), ssl_cipher:key_algo(), ssl_record:ssl_version()) -> - #server_key_params{}. -%% -%% Description: Decode server_key data and return appropriate type -%%-------------------------------------------------------------------- -decode_server_key(ServerKey, Type, Version) -> - dec_server_key(ServerKey, key_exchange_alg(Type), Version). - -%% -%% Description: Encode and decode functions for ALPN extension data. -%%-------------------------------------------------------------------- - -%% While the RFC opens the door to allow ALPN during renegotiation, in practice -%% this does not work and it is recommended to ignore any ALPN extension during -%% renegotiation, as done here. -encode_alpn(_, true) -> - undefined; -encode_alpn(undefined, _) -> - undefined; -encode_alpn(Protocols, _) -> - #alpn{extension_data = lists:foldl(fun encode_protocol/2, <<>>, Protocols)}. - -decode_alpn(undefined) -> - undefined; -decode_alpn(#alpn{extension_data=Data}) -> - decode_protocols(Data, []). - encode_client_protocol_negotiation(undefined, _) -> undefined; encode_client_protocol_negotiation(_, false) -> @@ -972,6 +652,10 @@ encode_protocols_advertised_on_server(undefined) -> encode_protocols_advertised_on_server(Protocols) -> #next_protocol_negotiation{extension_data = lists:foldl(fun encode_protocol/2, <<>>, Protocols)}. +%%==================================================================== +%% Decode handshake +%%==================================================================== + decode_handshake(_, ?HELLO_REQUEST, <<>>) -> #hello_request{}; decode_handshake(_, ?NEXT_PROTOCOL, <<?BYTE(SelectedProtocolLength), @@ -1004,7 +688,6 @@ decode_handshake(_Version, ?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:3 cipher_suite = Cipher_suite, compression_method = Comp_method, extensions = HelloExtensions}; - decode_handshake(_Version, ?CERTIFICATE, <<?UINT24(ACLen), ASN1Certs:ACLen/binary>>) -> #certificate{asn1_certificates = certs_to_list(ASN1Certs)}; decode_handshake(_Version, ?SERVER_KEY_EXCHANGE, Keys) -> @@ -1051,83 +734,30 @@ decode_hello_extensions({client, <<?UINT16(ExtLen), Extensions:ExtLen/binary>>}) decode_hello_extensions(Extensions) -> dec_hello_extensions(Extensions, #hello_extensions{}). -dec_server_key(<<?UINT16(PLen), P:PLen/binary, - ?UINT16(GLen), G:GLen/binary, - ?UINT16(YLen), Y:YLen/binary, _/binary>> = KeyStruct, - ?KEY_EXCHANGE_DIFFIE_HELLMAN, Version) -> - Params = #server_dh_params{dh_p = P, dh_g = G, dh_y = Y}, - {BinMsg, HashSign, Signature} = dec_server_key_params(PLen + GLen + YLen + 6, KeyStruct, Version), - #server_key_params{params = Params, - params_bin = BinMsg, - hashsign = HashSign, - signature = Signature}; -%% ECParameters with named_curve -%% TODO: explicit curve -dec_server_key(<<?BYTE(?NAMED_CURVE), ?UINT16(CurveID), - ?BYTE(PointLen), ECPoint:PointLen/binary, - _/binary>> = KeyStruct, - ?KEY_EXCHANGE_EC_DIFFIE_HELLMAN, Version) -> - Params = #server_ecdh_params{curve = {namedCurve, tls_v1:enum_to_oid(CurveID)}, - public = ECPoint}, - {BinMsg, HashSign, Signature} = dec_server_key_params(PointLen + 4, KeyStruct, Version), - #server_key_params{params = Params, - params_bin = BinMsg, - hashsign = HashSign, - signature = Signature}; -dec_server_key(<<?UINT16(Len), PskIdentityHint:Len/binary, _/binary>> = KeyStruct, - KeyExchange, Version) - when KeyExchange == ?KEY_EXCHANGE_PSK; KeyExchange == ?KEY_EXCHANGE_RSA_PSK -> - Params = #server_psk_params{ - hint = PskIdentityHint}, - {BinMsg, HashSign, Signature} = dec_server_key_params(Len + 2, KeyStruct, Version), - #server_key_params{params = Params, - params_bin = BinMsg, - hashsign = HashSign, - signature = Signature}; +%%-------------------------------------------------------------------- +-spec decode_server_key(binary(), ssl_cipher:key_algo(), ssl_record:ssl_version()) -> + #server_key_params{}. +%% +%% Description: Decode server_key data and return appropriate type +%%-------------------------------------------------------------------- +decode_server_key(ServerKey, Type, Version) -> + dec_server_key(ServerKey, key_exchange_alg(Type), Version). -dec_server_key(<<?UINT16(Len), IdentityHint:Len/binary, - ?UINT16(PLen), P:PLen/binary, - ?UINT16(GLen), G:GLen/binary, - ?UINT16(YLen), Y:YLen/binary, _/binary>> = KeyStruct, - ?KEY_EXCHANGE_DHE_PSK, Version) -> - DHParams = #server_dh_params{dh_p = P, dh_g = G, dh_y = Y}, - Params = #server_dhe_psk_params{ - hint = IdentityHint, - dh_params = DHParams}, - {BinMsg, HashSign, Signature} = dec_server_key_params(Len + PLen + GLen + YLen + 8, KeyStruct, Version), - #server_key_params{params = Params, - params_bin = BinMsg, - hashsign = HashSign, - signature = Signature}; -dec_server_key(<<?UINT16(Len), IdentityHint:Len/binary, - ?BYTE(?NAMED_CURVE), ?UINT16(CurveID), - ?BYTE(PointLen), ECPoint:PointLen/binary, - _/binary>> = KeyStruct, - ?KEY_EXCHANGE_EC_DIFFIE_HELLMAN_PSK, Version) -> - DHParams = #server_ecdh_params{ - curve = {namedCurve, tls_v1:enum_to_oid(CurveID)}, - public = ECPoint}, - Params = #server_ecdhe_psk_params{ - hint = IdentityHint, - dh_params = DHParams}, - {BinMsg, HashSign, Signature} = dec_server_key_params(Len + 2 + PointLen + 4, KeyStruct, Version), - #server_key_params{params = Params, - params_bin = BinMsg, - hashsign = HashSign, - signature = Signature}; -dec_server_key(<<?UINT16(NLen), N:NLen/binary, - ?UINT16(GLen), G:GLen/binary, - ?BYTE(SLen), S:SLen/binary, - ?UINT16(BLen), B:BLen/binary, _/binary>> = KeyStruct, - ?KEY_EXCHANGE_SRP, Version) -> - Params = #server_srp_params{srp_n = N, srp_g = G, srp_s = S, srp_b = B}, - {BinMsg, HashSign, Signature} = dec_server_key_params(NLen + GLen + SLen + BLen + 7, KeyStruct, Version), - #server_key_params{params = Params, - params_bin = BinMsg, - hashsign = HashSign, - signature = Signature}; -dec_server_key(_, KeyExchange, _) -> - throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, {unknown_or_malformed_key_exchange, KeyExchange})). +%%-------------------------------------------------------------------- +-spec decode_client_key(binary(), ssl_cipher:key_algo(), ssl_record:ssl_version()) -> + #encrypted_premaster_secret{} + | #client_diffie_hellman_public{} + | #client_ec_diffie_hellman_public{} + | #client_psk_identity{} + | #client_dhe_psk_identity{} + | #client_ecdhe_psk_identity{} + | #client_rsa_psk_identity{} + | #client_srp_public{}. +%% +%% Description: Decode client_key data and return appropriate type +%%-------------------------------------------------------------------- +decode_client_key(ClientKey, Type, Version) -> + dec_client_key(ClientKey, key_exchange_alg(Type), Version). %%-------------------------------------------------------------------- -spec decode_suites('2_bytes'|'3_bytes', binary()) -> list(). @@ -1139,7 +769,9 @@ decode_suites('2_bytes', Dec) -> decode_suites('3_bytes', Dec) -> from_3bytes(Dec). -%%-------------Cipeher suite handling -------------------------------- +%%==================================================================== +%% Cipher suite handling +%%==================================================================== available_suites(UserSuites, Version) -> lists:filtermap(fun(Suite) -> @@ -1152,61 +784,37 @@ available_suites(ServerCert, UserSuites, Version, undefined, Curve) -> available_suites(ServerCert, UserSuites, Version, HashSigns, Curve) -> Suites = available_suites(ServerCert, UserSuites, Version, undefined, Curve), filter_hashsigns(Suites, [ssl_cipher:suite_definition(Suite) || Suite <- Suites], HashSigns, []). -filter_hashsigns([], [], _, Acc) -> - lists:reverse(Acc); -filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, - Acc) when KeyExchange == dhe_ecdsa; - KeyExchange == ecdhe_ecdsa -> - do_filter_hashsigns(ecdsa, Suite, Suites, Algos, HashSigns, Acc); -filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, - Acc) when KeyExchange == rsa; - KeyExchange == dhe_rsa; - KeyExchange == ecdhe_rsa; - KeyExchange == srp_rsa; - KeyExchange == rsa_psk -> - do_filter_hashsigns(rsa, Suite, Suites, Algos, HashSigns, Acc); -filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, Acc) when - KeyExchange == dhe_dss; - KeyExchange == srp_dss -> - do_filter_hashsigns(dsa, Suite, Suites, Algos, HashSigns, Acc); -filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, Acc) when - KeyExchange == dh_dss; - KeyExchange == dh_rsa; - KeyExchange == dh_ecdsa; - KeyExchange == ecdh_rsa; - KeyExchange == ecdh_ecdsa -> - %% Fixed DH certificates MAY be signed with any hash/signature - %% algorithm pair appearing in the hash_sign extension. The names - %% DH_DSS, DH_RSA, ECDH_ECDSA, and ECDH_RSA are historical. - filter_hashsigns(Suites, Algos, HashSigns, [Suite| Acc]); -filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, Acc) when - KeyExchange == dh_anon; - KeyExchange == ecdh_anon; - KeyExchange == srp_anon; - KeyExchange == psk; - KeyExchange == dhe_psk; - KeyExchange == ecdhe_psk -> - %% In this case hashsigns is not used as the kexchange is anonaymous - filter_hashsigns(Suites, Algos, HashSigns, [Suite| Acc]). - -do_filter_hashsigns(SignAlgo, Suite, Suites, Algos, HashSigns, Acc) -> - case lists:keymember(SignAlgo, 2, HashSigns) of - true -> - filter_hashsigns(Suites, Algos, HashSigns, [Suite| Acc]); - false -> - filter_hashsigns(Suites, Algos, HashSigns, Acc) - end. - -unavailable_ecc_suites(no_curve) -> - ssl_cipher:ec_keyed_suites(); -unavailable_ecc_suites(_) -> - []. +available_signature_algs(undefined, _) -> + undefined; +available_signature_algs(SupportedHashSigns, Version) when Version >= {3, 3} -> + #hash_sign_algos{hash_sign_algos = SupportedHashSigns}; +available_signature_algs(_, _) -> + undefined. +available_signature_algs(undefined, SupportedHashSigns, _, Version) when + Version >= {3,3} -> + SupportedHashSigns; +available_signature_algs(#hash_sign_algos{hash_sign_algos = ClientHashSigns}, SupportedHashSigns, + _, Version) when Version >= {3,3} -> + sets:to_list(sets:intersection(sets:from_list(ClientHashSigns), + sets:from_list(SupportedHashSigns))); +available_signature_algs(_, _, _, _) -> + undefined. cipher_suites(Suites, false) -> [?TLS_EMPTY_RENEGOTIATION_INFO_SCSV | Suites]; cipher_suites(Suites, true) -> Suites. +%%-------------------------------------------------------------------- +-spec prf(ssl_record:ssl_version(), non_neg_integer(), binary(), binary(), [binary()], non_neg_integer()) -> + {ok, binary()} | {error, undefined}. +%% +%% Description: use the TLS PRF to generate key material +%%-------------------------------------------------------------------- +prf({3,0}, _, _, _, _, _) -> + {error, undefined}; +prf({3,_N}, PRFAlgo, Secret, Label, Seed, WantedLength) -> + {ok, tls_v1:prf(PRFAlgo, Secret, Label, Seed, WantedLength)}. select_session(SuggestedSessionId, CipherSuites, HashSigns, Compressions, Port, #session{ecc = ECCCurve} = Session, Version, @@ -1227,68 +835,121 @@ select_session(SuggestedSessionId, CipherSuites, HashSigns, Compressions, Port, {resumed, Resumed} end. -%% Deprecated? supported_ecc({Major, Minor}) when ((Major == 3) and (Minor >= 1)) orelse (Major > 3) -> Curves = tls_v1:ecc_curves(Minor), #elliptic_curves{elliptic_curve_list = Curves}; supported_ecc(_) -> #elliptic_curves{elliptic_curve_list = []}. -%%-------------certificate handling -------------------------------- - -certificate_types(_, {N, M}) when N >= 3 andalso M >= 3 -> - case proplists:get_bool(ecdsa, - proplists:get_value(public_keys, crypto:supports())) of - true -> - <<?BYTE(?ECDSA_SIGN), ?BYTE(?RSA_SIGN), ?BYTE(?DSS_SIGN)>>; - false -> - <<?BYTE(?RSA_SIGN), ?BYTE(?DSS_SIGN)>> +premaster_secret(OtherPublicDhKey, MyPrivateKey, #'DHParameter'{} = Params) -> + try + public_key:compute_key(OtherPublicDhKey, MyPrivateKey, Params) + catch + error:computation_failed -> + throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) + end; +premaster_secret(PublicDhKey, PrivateDhKey, #server_dh_params{dh_p = Prime, dh_g = Base}) -> + try + crypto:compute_key(dh, PublicDhKey, PrivateDhKey, [Prime, Base]) + catch + error:computation_failed -> + throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) end; +premaster_secret(#client_srp_public{srp_a = ClientPublicKey}, ServerKey, #srp_user{prime = Prime, + verifier = Verifier}) -> + case crypto:compute_key(srp, ClientPublicKey, ServerKey, {host, [Verifier, Prime, '6a']}) of + error -> + throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)); + PremasterSecret -> + PremasterSecret + end; +premaster_secret(#server_srp_params{srp_n = Prime, srp_g = Generator, srp_s = Salt, srp_b = Public}, + ClientKeys, {Username, Password}) -> + case ssl_srp_primes:check_srp_params(Generator, Prime) of + ok -> + DerivedKey = crypto:hash(sha, [Salt, crypto:hash(sha, [Username, <<$:>>, Password])]), + case crypto:compute_key(srp, Public, ClientKeys, {user, [DerivedKey, Prime, Generator, '6a']}) of + error -> + throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)); + PremasterSecret -> + PremasterSecret + end; + _ -> + throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) + end; +premaster_secret(#client_rsa_psk_identity{ + identity = PSKIdentity, + exchange_keys = #encrypted_premaster_secret{premaster_secret = EncPMS} + }, #'RSAPrivateKey'{} = Key, PSKLookup) -> + PremasterSecret = premaster_secret(EncPMS, Key), + psk_secret(PSKIdentity, PSKLookup, PremasterSecret); +premaster_secret(#server_dhe_psk_params{ + hint = IdentityHint, + dh_params = #server_dh_params{dh_y = PublicDhKey} = Params}, + PrivateDhKey, + LookupFun) -> + PremasterSecret = premaster_secret(PublicDhKey, PrivateDhKey, Params), + psk_secret(IdentityHint, LookupFun, PremasterSecret); +premaster_secret(#server_ecdhe_psk_params{ + hint = IdentityHint, + dh_params = #server_ecdh_params{ + public = ECServerPubKey}}, + PrivateEcDhKey, + LookupFun) -> + PremasterSecret = premaster_secret(#'ECPoint'{point = ECServerPubKey}, PrivateEcDhKey), + psk_secret(IdentityHint, LookupFun, PremasterSecret); +premaster_secret({rsa_psk, PSKIdentity}, PSKLookup, RSAPremasterSecret) -> + psk_secret(PSKIdentity, PSKLookup, RSAPremasterSecret); +premaster_secret(#client_ecdhe_psk_identity{ + identity = PSKIdentity, + dh_public = PublicEcDhPoint}, PrivateEcDhKey, PSKLookup) -> + PremasterSecret = premaster_secret(#'ECPoint'{point = PublicEcDhPoint}, PrivateEcDhKey), + psk_secret(PSKIdentity, PSKLookup, PremasterSecret). +premaster_secret(#client_dhe_psk_identity{ + identity = PSKIdentity, + dh_public = PublicDhKey}, PrivateKey, #'DHParameter'{} = Params, PSKLookup) -> + PremasterSecret = premaster_secret(PublicDhKey, PrivateKey, Params), + psk_secret(PSKIdentity, PSKLookup, PremasterSecret). +premaster_secret(#client_psk_identity{identity = PSKIdentity}, PSKLookup) -> + psk_secret(PSKIdentity, PSKLookup); +premaster_secret({psk, PSKIdentity}, PSKLookup) -> + psk_secret(PSKIdentity, PSKLookup); +premaster_secret(#'ECPoint'{} = ECPoint, #'ECPrivateKey'{} = ECDHKeys) -> + public_key:compute_key(ECPoint, ECDHKeys); +premaster_secret(EncSecret, #'RSAPrivateKey'{} = RSAPrivateKey) -> + try public_key:decrypt_private(EncSecret, RSAPrivateKey, + [{rsa_pad, rsa_pkcs1_padding}]) + catch + _:_ -> + throw(?ALERT_REC(?FATAL, ?DECRYPT_ERROR)) + end. +%%==================================================================== +%% Extensions handling +%%==================================================================== +client_hello_extensions(Version, CipherSuites, + #ssl_options{signature_algs = SupportedHashSigns, + eccs = SupportedECCs} = SslOpts, ConnectionStates, Renegotiation) -> + {EcPointFormats, EllipticCurves} = + case advertises_ec_ciphers(lists:map(fun ssl_cipher:suite_definition/1, CipherSuites)) of + true -> + client_ecc_extensions(SupportedECCs); + false -> + {undefined, undefined} + end, + SRP = srp_user(SslOpts), -certificate_types({KeyExchange, _, _, _}, _) when KeyExchange == rsa; - KeyExchange == dh_rsa; - KeyExchange == dhe_rsa; - KeyExchange == ecdhe_rsa -> - <<?BYTE(?RSA_SIGN)>>; - -certificate_types({KeyExchange, _, _, _}, _) when KeyExchange == dh_dss; - KeyExchange == dhe_dss; - KeyExchange == srp_dss -> - <<?BYTE(?DSS_SIGN)>>; - -certificate_types({KeyExchange, _, _, _}, _) when KeyExchange == dh_ecdsa; - KeyExchange == dhe_ecdsa; - KeyExchange == ecdh_ecdsa; - KeyExchange == ecdhe_ecdsa -> - <<?BYTE(?ECDSA_SIGN)>>; - -certificate_types(_, _) -> - <<?BYTE(?RSA_SIGN)>>. - -certificate_authorities(CertDbHandle, CertDbRef) -> - Authorities = certificate_authorities_from_db(CertDbHandle, CertDbRef), - Enc = fun(#'OTPCertificate'{tbsCertificate=TBSCert}) -> - OTPSubj = TBSCert#'OTPTBSCertificate'.subject, - DNEncodedBin = public_key:pkix_encode('Name', OTPSubj, otp), - DNEncodedLen = byte_size(DNEncodedBin), - <<?UINT16(DNEncodedLen), DNEncodedBin/binary>> - end, - list_to_binary([Enc(Cert) || {_, Cert} <- Authorities]). - -certificate_authorities_from_db(CertDbHandle, CertDbRef) when is_reference(CertDbRef) -> - ConnectionCerts = fun({{Ref, _, _}, Cert}, Acc) when Ref == CertDbRef -> - [Cert | Acc]; - (_, Acc) -> - Acc - end, - ssl_pkix_db:foldl(ConnectionCerts, [], CertDbHandle); -certificate_authorities_from_db(_CertDbHandle, {extracted, CertDbData}) -> - %% Cache disabled, Ref contains data - lists:foldl(fun({decoded, {_Key,Cert}}, Acc) -> [Cert | Acc] end, - [], CertDbData). - - -%%-------------Extension handling -------------------------------- + #hello_extensions{ + renegotiation_info = renegotiation_info(tls_record, client, + ConnectionStates, Renegotiation), + srp = SRP, + signature_algs = available_signature_algs(SupportedHashSigns, Version), + ec_point_formats = EcPointFormats, + elliptic_curves = EllipticCurves, + alpn = encode_alpn(SslOpts#ssl_options.alpn_advertised_protocols, Renegotiation), + next_protocol_negotiation = + encode_client_protocol_negotiation(SslOpts#ssl_options.next_protocol_selector, + Renegotiation), + sni = sni(SslOpts#ssl_options.server_name_indication)}. handle_client_hello_extensions(RecordCB, Random, ClientCipherSuites, #hello_extensions{renegotiation_info = Info, @@ -1365,233 +1026,205 @@ handle_server_hello_extensions(RecordCB, Random, CipherSuite, Compression, ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, too_many_protocols_in_server_hello) end. -select_version(RecordCB, ClientVersion, Versions) -> - do_select_version(RecordCB, ClientVersion, Versions). - -do_select_version(_, ClientVersion, []) -> - ClientVersion; -do_select_version(RecordCB, ClientVersion, [Version | Versions]) -> - case RecordCB:is_higher(Version, ClientVersion) of - true -> - %% Version too high for client - keep looking - do_select_version(RecordCB, ClientVersion, Versions); - false -> - %% Version ok for client - look for a higher - do_select_version(RecordCB, ClientVersion, Versions, Version) - end. -%% -do_select_version(_, _, [], GoodVersion) -> - GoodVersion; -do_select_version( - RecordCB, ClientVersion, [Version | Versions], GoodVersion) -> - BetterVersion = - case RecordCB:is_higher(Version, ClientVersion) of - true -> - %% Version too high for client - GoodVersion; - false -> - %% Version ok for client - case RecordCB:is_higher(Version, GoodVersion) of - true -> - %% Use higher version - Version; - false -> - GoodVersion - end - end, - do_select_version(RecordCB, ClientVersion, Versions, BetterVersion). +select_curve(Client, Server) -> + select_curve(Client, Server, false). -renegotiation_info(_, client, _, false) -> - #renegotiation_info{renegotiated_connection = undefined}; -renegotiation_info(_RecordCB, server, ConnectionStates, false) -> - ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), - case maps:get(secure_renegotiation, ConnectionState) of - true -> - #renegotiation_info{renegotiated_connection = ?byte(0)}; - false -> - #renegotiation_info{renegotiated_connection = undefined} - end; -renegotiation_info(_RecordCB, client, ConnectionStates, true) -> - ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), - case maps:get(secure_renegotiation, ConnectionState) of - true -> - Data = maps:get(client_verify_data, ConnectionState), - #renegotiation_info{renegotiated_connection = Data}; - false -> - #renegotiation_info{renegotiated_connection = undefined} +select_curve(#elliptic_curves{elliptic_curve_list = ClientCurves}, + #elliptic_curves{elliptic_curve_list = ServerCurves}, + ServerOrder) -> + case ServerOrder of + false -> + select_shared_curve(ClientCurves, ServerCurves); + true -> + select_shared_curve(ServerCurves, ClientCurves) end; +select_curve(undefined, _, _) -> + %% Client did not send ECC extension use default curve if + %% ECC cipher is negotiated + {namedCurve, ?secp256r1}. -renegotiation_info(_RecordCB, server, ConnectionStates, true) -> - ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), - case maps:get(secure_renegotiation, ConnectionState) of - true -> - CData = maps:get(client_verify_data, ConnectionState), - SData = maps:get(server_verify_data, ConnectionState), - #renegotiation_info{renegotiated_connection = <<CData/binary, SData/binary>>}; - false -> - #renegotiation_info{renegotiated_connection = undefined} - end. +%%-------------------------------------------------------------------- +-spec select_hashsign(#hash_sign_algos{} | undefined, undefined | binary(), + atom(), [atom()], ssl_record:ssl_version()) -> + {atom(), atom()} | undefined | #alert{}. -handle_renegotiation_info(_RecordCB, _, #renegotiation_info{renegotiated_connection = ?byte(0)}, - ConnectionStates, false, _, _) -> - {ok, ssl_record:set_renegotiation_flag(true, ConnectionStates)}; +%% +%% Description: Handles signature_algorithms hello extension (server) +%%-------------------------------------------------------------------- +select_hashsign(_, undefined, _, _, _Version) -> + {null, anon}; +%% The signature_algorithms extension was introduced with TLS 1.2. Ignore it if we have +%% negotiated a lower version. +select_hashsign(HashSigns, Cert, KeyExAlgo, + undefined, {Major, Minor} = Version) when Major >= 3 andalso Minor >= 3-> + select_hashsign(HashSigns, Cert, KeyExAlgo, tls_v1:default_signature_algs(Version), Version); +select_hashsign(#hash_sign_algos{hash_sign_algos = HashSigns}, Cert, KeyExAlgo, SupportedHashSigns, + {Major, Minor}) when Major >= 3 andalso Minor >= 3 -> + #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp), + #'OTPCertificate'{tbsCertificate = TBSCert, + signatureAlgorithm = {_,SignAlgo, _}} = public_key:pkix_decode_cert(Cert, otp), + #'OTPSubjectPublicKeyInfo'{algorithm = {_, SubjAlgo, _}} = + TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo, -handle_renegotiation_info(_RecordCB, server, undefined, ConnectionStates, _, _, CipherSuites) -> - case is_member(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV, CipherSuites) of - true -> - {ok, ssl_record:set_renegotiation_flag(true, ConnectionStates)}; - false -> - {ok, ssl_record:set_renegotiation_flag(false, ConnectionStates)} + Sign = sign_algo(SignAlgo), + SubSing = sign_algo(SubjAlgo), + + case lists:filter(fun({_, S} = Algos) when S == Sign -> + is_acceptable_hash_sign(Algos, Sign, + SubSing, KeyExAlgo, SupportedHashSigns); + (_) -> + false + end, HashSigns) of + [] -> + ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_signature_algorithm); + [HashSign | _] -> + HashSign end; +select_hashsign(_, Cert, _, _, Version) -> + #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp), + #'OTPSubjectPublicKeyInfo'{algorithm = {_,Algo, _}} = TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo, + select_hashsign_algs(undefined, Algo, Version). +%%-------------------------------------------------------------------- +-spec select_hashsign(#certificate_request{}, binary(), + [atom()], ssl_record:ssl_version()) -> + {atom(), atom()} | #alert{}. -handle_renegotiation_info(_RecordCB, _, undefined, ConnectionStates, false, _, _) -> - {ok, ssl_record:set_renegotiation_flag(false, ConnectionStates)}; +%% +%% Description: Handles signature algorithms selection for certificate requests (client) +%%-------------------------------------------------------------------- +select_hashsign(#certificate_request{}, undefined, _, {Major, Minor}) when Major >= 3 andalso Minor >= 3-> + %% There client does not have a certificate and will send an empty reply, the server may fail + %% or accept the connection by its own preference. No signature algorihms needed as there is + %% no certificate to verify. + {undefined, undefined}; + +select_hashsign(#certificate_request{hashsign_algorithms = #hash_sign_algos{hash_sign_algos = HashSigns}, + certificate_types = Types}, Cert, SupportedHashSigns, + {Major, Minor}) when Major >= 3 andalso Minor >= 3-> + #'OTPCertificate'{tbsCertificate = TBSCert} = public_key:pkix_decode_cert(Cert, otp), + #'OTPCertificate'{tbsCertificate = TBSCert, + signatureAlgorithm = {_,SignAlgo, _}} = public_key:pkix_decode_cert(Cert, otp), + #'OTPSubjectPublicKeyInfo'{algorithm = {_, SubjAlgo, _}} = + TBSCert#'OTPTBSCertificate'.subjectPublicKeyInfo, -handle_renegotiation_info(_RecordCB, client, #renegotiation_info{renegotiated_connection = ClientServerVerify}, - ConnectionStates, true, _, _) -> - ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), - CData = maps:get(client_verify_data, ConnectionState), - SData = maps:get(server_verify_data, ConnectionState), - case <<CData/binary, SData/binary>> == ClientServerVerify of + Sign = sign_algo(SignAlgo), + SubSign = sign_algo(SubjAlgo), + + case is_acceptable_cert_type(SubSign, HashSigns, Types) andalso is_supported_sign(Sign, HashSigns) of true -> - {ok, ConnectionStates}; + case lists:filter(fun({_, S} = Algos) when S == SubSign -> + is_acceptable_hash_sign(Algos, SupportedHashSigns); + (_) -> + false + end, HashSigns) of + [] -> + ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_signature_algorithm); + [HashSign | _] -> + HashSign + end; false -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, client_renegotiation) + ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_signature_algorithm) end; -handle_renegotiation_info(_RecordCB, server, #renegotiation_info{renegotiated_connection = ClientVerify}, - ConnectionStates, true, _, CipherSuites) -> - - case is_member(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV, CipherSuites) of - true -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, {server_renegotiation, empty_renegotiation_info_scsv}); - false -> - ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), - Data = maps:get(client_verify_data, ConnectionState), - case Data == ClientVerify of - true -> - {ok, ConnectionStates}; - false -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, server_renegotiation) - end - end; - -handle_renegotiation_info(RecordCB, client, undefined, ConnectionStates, true, SecureRenegotation, _) -> - handle_renegotiation_info(RecordCB, ConnectionStates, SecureRenegotation); +select_hashsign(#certificate_request{}, Cert, _, Version) -> + select_hashsign(undefined, Cert, undefined, [], Version). -handle_renegotiation_info(RecordCB, server, undefined, ConnectionStates, true, SecureRenegotation, CipherSuites) -> - case is_member(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV, CipherSuites) of - true -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, {server_renegotiation, empty_renegotiation_info_scsv}); - false -> - handle_renegotiation_info(RecordCB, ConnectionStates, SecureRenegotation) - end. +%%-------------------------------------------------------------------- +-spec select_hashsign_algs({atom(), atom()}| undefined, oid(), ssl_record:ssl_version()) -> + {atom(), atom()}. -handle_renegotiation_info(_RecordCB, ConnectionStates, SecureRenegotation) -> - ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), - case {SecureRenegotation, maps:get(secure_renegotiation, ConnectionState)} of - {_, true} -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, already_secure); - {true, false} -> - ?ALERT_REC(?FATAL, ?NO_RENEGOTIATION); - {false, false} -> - {ok, ConnectionStates} - end. +%% Description: For TLS 1.2 hash function and signature algorithm pairs can be +%% negotiated with the signature_algorithms extension, +%% for previous versions always use appropriate defaults. +%% RFC 5246, Sect. 7.4.1.4.1. Signature Algorithms +%% If the client does not send the signature_algorithms extension, the +%% server MUST do the following: (e.i defaults for TLS 1.2) +%% +%% - If the negotiated key exchange algorithm is one of (RSA, DHE_RSA, +%% DH_RSA, RSA_PSK, ECDH_RSA, ECDHE_RSA), behave as if client had +%% sent the value {sha1,rsa}. +%% +%% - If the negotiated key exchange algorithm is one of (DHE_DSS, +%% DH_DSS), behave as if the client had sent the value {sha1,dsa}. +%% +%% - If the negotiated key exchange algorithm is one of (ECDH_ECDSA, +%% ECDHE_ECDSA), behave as if the client had sent value {sha1,ecdsa}. -hello_extensions_list(#hello_extensions{renegotiation_info = RenegotiationInfo, - srp = SRP, - signature_algs = HashSigns, - ec_point_formats = EcPointFormats, - elliptic_curves = EllipticCurves, - alpn = ALPN, - next_protocol_negotiation = NextProtocolNegotiation, - sni = Sni}) -> - [Ext || Ext <- [RenegotiationInfo, SRP, HashSigns, - EcPointFormats, EllipticCurves, ALPN, NextProtocolNegotiation, Sni], Ext =/= undefined]. +%%-------------------------------------------------------------------- +select_hashsign_algs(HashSign, _, {Major, Minor}) when HashSign =/= undefined andalso + Major >= 3 andalso Minor >= 3 -> + HashSign; +select_hashsign_algs(undefined, ?rsaEncryption, {Major, Minor}) when Major >= 3 andalso Minor >= 3 -> + {sha, rsa}; +select_hashsign_algs(undefined,?'id-ecPublicKey', _) -> + {sha, ecdsa}; +select_hashsign_algs(undefined, ?rsaEncryption, _) -> + {md5sha, rsa}; +select_hashsign_algs(undefined, ?'id-dsa', _) -> + {sha, dsa}. srp_user(#ssl_options{srp_identity = {UserName, _}}) -> #srp{username = UserName}; srp_user(_) -> undefined. -client_ecc_extensions(SupportedECCs) -> - CryptoSupport = proplists:get_value(public_keys, crypto:supports()), - case proplists:get_bool(ecdh, CryptoSupport) of - true -> - EcPointFormats = #ec_point_formats{ec_point_format_list = [?ECPOINT_UNCOMPRESSED]}, - EllipticCurves = SupportedECCs, - {EcPointFormats, EllipticCurves}; - _ -> - {undefined, undefined} - end. +%%-------------------------------------------------------------------- +%%% Internal functions +%%-------------------------------------------------------------------- +%%------------- Create handshake messages ---------------------------- -server_ecc_extension(_Version, EcPointFormats) -> - CryptoSupport = proplists:get_value(public_keys, crypto:supports()), - case proplists:get_bool(ecdh, CryptoSupport) of +int_to_bin(I) -> + L = (length(integer_to_list(I, 16)) + 1) div 2, + <<I:(L*8)>>. + +certificate_types(_, {N, M}) when N >= 3 andalso M >= 3 -> + case proplists:get_bool(ecdsa, + proplists:get_value(public_keys, crypto:supports())) of true -> - handle_ecc_point_fmt_extension(EcPointFormats); + <<?BYTE(?ECDSA_SIGN), ?BYTE(?RSA_SIGN), ?BYTE(?DSS_SIGN)>>; false -> - undefined - end. - -handle_ecc_point_fmt_extension(undefined) -> - undefined; -handle_ecc_point_fmt_extension(_) -> - #ec_point_formats{ec_point_format_list = [?ECPOINT_UNCOMPRESSED]}. - -advertises_ec_ciphers([]) -> - false; -advertises_ec_ciphers([{ecdh_ecdsa, _,_,_} | _]) -> - true; -advertises_ec_ciphers([{ecdhe_ecdsa, _,_,_} | _]) -> - true; -advertises_ec_ciphers([{ecdh_rsa, _,_,_} | _]) -> - true; -advertises_ec_ciphers([{ecdhe_rsa, _,_,_} | _]) -> - true; -advertises_ec_ciphers([{ecdh_anon, _,_,_} | _]) -> - true; -advertises_ec_ciphers([{ecdhe_psk, _,_,_} | _]) -> - true; -advertises_ec_ciphers([_| Rest]) -> - advertises_ec_ciphers(Rest). - -select_curve(Client, Server) -> - select_curve(Client, Server, false). - -select_curve(#elliptic_curves{elliptic_curve_list = ClientCurves}, - #elliptic_curves{elliptic_curve_list = ServerCurves}, - ServerOrder) -> - case ServerOrder of - false -> - select_shared_curve(ClientCurves, ServerCurves); - true -> - select_shared_curve(ServerCurves, ClientCurves) + <<?BYTE(?RSA_SIGN), ?BYTE(?DSS_SIGN)>> end; -select_curve(undefined, _, _) -> - %% Client did not send ECC extension use default curve if - %% ECC cipher is negotiated - {namedCurve, ?secp256r1}. +certificate_types({KeyExchange, _, _, _}, _) when KeyExchange == rsa; + KeyExchange == dh_rsa; + KeyExchange == dhe_rsa; + KeyExchange == ecdhe_rsa -> + <<?BYTE(?RSA_SIGN)>>; +certificate_types({KeyExchange, _, _, _}, _) when KeyExchange == dh_dss; + KeyExchange == dhe_dss; + KeyExchange == srp_dss -> + <<?BYTE(?DSS_SIGN)>>; +certificate_types({KeyExchange, _, _, _}, _) when KeyExchange == dh_ecdsa; + KeyExchange == dhe_ecdsa; + KeyExchange == ecdh_ecdsa; + KeyExchange == ecdhe_ecdsa -> + <<?BYTE(?ECDSA_SIGN)>>; +certificate_types(_, _) -> + <<?BYTE(?RSA_SIGN)>>. -select_shared_curve([], _) -> - no_curve; -select_shared_curve([Curve | Rest], Curves) -> - case lists:member(Curve, Curves) of - true -> - {namedCurve, Curve}; - false -> - select_shared_curve(Rest, Curves) - end. +certificate_authorities(CertDbHandle, CertDbRef) -> + Authorities = certificate_authorities_from_db(CertDbHandle, CertDbRef), + Enc = fun(#'OTPCertificate'{tbsCertificate=TBSCert}) -> + OTPSubj = TBSCert#'OTPTBSCertificate'.subject, + DNEncodedBin = public_key:pkix_encode('Name', OTPSubj, otp), + DNEncodedLen = byte_size(DNEncodedBin), + <<?UINT16(DNEncodedLen), DNEncodedBin/binary>> + end, + list_to_binary([Enc(Cert) || {_, Cert} <- Authorities]). -sni(undefined) -> - undefined; -sni(disable) -> - undefined; -sni(Hostname) -> - #sni{hostname = Hostname}. +certificate_authorities_from_db(CertDbHandle, CertDbRef) when is_reference(CertDbRef) -> + ConnectionCerts = fun({{Ref, _, _}, Cert}, Acc) when Ref == CertDbRef -> + [Cert | Acc]; + (_, Acc) -> + Acc + end, + ssl_pkix_db:foldl(ConnectionCerts, [], CertDbHandle); +certificate_authorities_from_db(_CertDbHandle, {extracted, CertDbData}) -> + %% Cache disabled, Ref contains data + lists:foldl(fun({decoded, {_Key,Cert}}, Acc) -> [Cert | Acc] end, + [], CertDbData). + +%%-------------Handle handshake messages -------------------------------- -%%-------------------------------------------------------------------- -%%% Internal functions -%%-------------------------------------------------------------------- validation_fun_and_state({Fun, UserState0}, Role, CertDbHandle, CertDbRef, ServerNameIndication, CRLCheck, CRLDbHandle, CertPath) -> {fun(OtpCert, {extension, _} = Extension, {SslState, UserState}) -> @@ -1683,17 +1316,6 @@ path_validation_alert({bad_cert, unknown_ca}) -> path_validation_alert(Reason) -> ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, Reason). -encrypted_premaster_secret(Secret, RSAPublicKey) -> - try - PreMasterSecret = public_key:encrypt_public(Secret, RSAPublicKey, - [{rsa_pad, - rsa_pkcs1_padding}]), - #encrypted_premaster_secret{premaster_secret = PreMasterSecret} - catch - _:_-> - throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, premaster_encryption_failed)) - end. - digitally_signed(Version, Hashes, HashAlgo, PrivateKey) -> try do_digitally_signed(Version, Hashes, HashAlgo, PrivateKey) of Signature -> @@ -1719,6 +1341,106 @@ do_digitally_signed({3, _}, Hash, HashAlgo, #{algorithm := Alg} = Engine) -> do_digitally_signed(_Version, Hash, HashAlgo, Key) -> public_key:sign({digest, Hash}, HashAlgo, Key). +bad_key(#'DSAPrivateKey'{}) -> + unacceptable_dsa_key; +bad_key(#'RSAPrivateKey'{}) -> + unacceptable_rsa_key; +bad_key(#'ECPrivateKey'{}) -> + unacceptable_ecdsa_key. + +crl_check(_, false, _,_,_, _, _) -> + valid; +crl_check(_, peer, _, _,_, valid, _) -> %% Do not check CAs with this option. + valid; +crl_check(OtpCert, Check, CertDbHandle, CertDbRef, {Callback, CRLDbHandle}, _, CertPath) -> + Options = [{issuer_fun, {fun(_DP, CRL, Issuer, DBInfo) -> + ssl_crl:trusted_cert_and_path(CRL, Issuer, {CertPath, + DBInfo}) + end, {CertDbHandle, CertDbRef}}}, + {update_crl, fun(DP, CRL) -> Callback:fresh_crl(DP, CRL) end}, + {undetermined_details, true} + ], + case dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) of + no_dps -> + crl_check_same_issuer(OtpCert, Check, + dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer), + Options); + DpsAndCRLs -> %% This DP list may be empty if relevant CRLs existed + %% but could not be retrived, will result in {bad_cert, revocation_status_undetermined} + case public_key:pkix_crls_validate(OtpCert, DpsAndCRLs, Options) of + {bad_cert, {revocation_status_undetermined, _}} -> + crl_check_same_issuer(OtpCert, Check, dps_and_crls(OtpCert, Callback, + CRLDbHandle, same_issuer), Options); + Other -> + Other + end + end. + +crl_check_same_issuer(OtpCert, best_effort, Dps, Options) -> + case public_key:pkix_crls_validate(OtpCert, Dps, Options) of + {bad_cert, {revocation_status_undetermined, _}} -> + valid; + Other -> + Other + end; +crl_check_same_issuer(OtpCert, _, Dps, Options) -> + public_key:pkix_crls_validate(OtpCert, Dps, Options). + +dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) -> + case public_key:pkix_dist_points(OtpCert) of + [] -> + no_dps; + DistPoints -> + Issuer = OtpCert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.issuer, + CRLs = distpoints_lookup(DistPoints, Issuer, Callback, CRLDbHandle), + dps_and_crls(DistPoints, CRLs, []) + end; + +dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer) -> + DP = #'DistributionPoint'{distributionPoint = {fullName, GenNames}} = + public_key:pkix_dist_point(OtpCert), + CRLs = lists:flatmap(fun({directoryName, Issuer}) -> + Callback:select(Issuer, CRLDbHandle); + (_) -> + [] + end, GenNames), + [{DP, {CRL, public_key:der_decode('CertificateList', CRL)}} || CRL <- CRLs]. + +dps_and_crls([], _, Acc) -> + Acc; +dps_and_crls([DP | Rest], CRLs, Acc) -> + DpCRL = [{DP, {CRL, public_key:der_decode('CertificateList', CRL)}} || CRL <- CRLs], + dps_and_crls(Rest, CRLs, DpCRL ++ Acc). + +distpoints_lookup([],_, _, _) -> + []; +distpoints_lookup([DistPoint | Rest], Issuer, Callback, CRLDbHandle) -> + Result = + try Callback:lookup(DistPoint, Issuer, CRLDbHandle) + catch + error:undef -> + %% The callback module still uses the 2-argument + %% version of the lookup function. + Callback:lookup(DistPoint, CRLDbHandle) + end, + case Result of + not_available -> + distpoints_lookup(Rest, Issuer, Callback, CRLDbHandle); + CRLs -> + CRLs + end. + +encrypted_premaster_secret(Secret, RSAPublicKey) -> + try + PreMasterSecret = public_key:encrypt_public(Secret, RSAPublicKey, + [{rsa_pad, + rsa_pkcs1_padding}]), + #encrypted_premaster_secret{premaster_secret = PreMasterSecret} + catch + _:_-> + throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, premaster_encryption_failed)) + end. + calc_certificate_verify({3, 0}, HashAlgo, MasterSecret, Handshake) -> ssl_v3:certificate_verify(HashAlgo, MasterSecret, lists:reverse(Handshake)); calc_certificate_verify({3, N}, HashAlgo, _MasterSecret, Handshake) -> @@ -1771,24 +1493,7 @@ calc_master_secret({3,0}, _PrfAlgo, PremasterSecret, ClientRandom, ServerRandom) calc_master_secret({3,_}, PrfAlgo, PremasterSecret, ClientRandom, ServerRandom) -> tls_v1:master_secret(PrfAlgo, PremasterSecret, ClientRandom, ServerRandom). - -handle_renegotiation_extension(Role, RecordCB, Version, Info, Random, NegotiatedCipherSuite, - ClientCipherSuites, Compression, - ConnectionStates0, Renegotiation, SecureRenegotation) -> - case handle_renegotiation_info(RecordCB, Role, Info, ConnectionStates0, - Renegotiation, SecureRenegotation, - ClientCipherSuites) of - {ok, ConnectionStates} -> - hello_pending_connection_states(RecordCB, Role, - Version, - NegotiatedCipherSuite, - Random, - Compression, - ConnectionStates); - #alert{} = Alert -> - throw(Alert) - end. - + %% Update pending connection states with parameters exchanged via %% hello messages %% NOTE : Role is the role of the receiver of the hello message @@ -1828,7 +1533,43 @@ hello_security_parameters(server, Version, #{security_parameters := SecParams}, compression_algorithm = Compression }. -%%-------------Encode/Decode -------------------------------- +select_compression(_CompressionMetodes) -> + ?NULL. + +do_select_version(_, ClientVersion, []) -> + ClientVersion; +do_select_version(RecordCB, ClientVersion, [Version | Versions]) -> + case RecordCB:is_higher(Version, ClientVersion) of + true -> + %% Version too high for client - keep looking + do_select_version(RecordCB, ClientVersion, Versions); + false -> + %% Version ok for client - look for a higher + do_select_version(RecordCB, ClientVersion, Versions, Version) + end. +%% +do_select_version(_, _, [], GoodVersion) -> + GoodVersion; +do_select_version( + RecordCB, ClientVersion, [Version | Versions], GoodVersion) -> + BetterVersion = + case RecordCB:is_higher(Version, ClientVersion) of + true -> + %% Version too high for client + GoodVersion; + false -> + %% Version ok for client + case RecordCB:is_higher(Version, GoodVersion) of + true -> + %% Use higher version + Version; + false -> + GoodVersion + end + end, + do_select_version(RecordCB, ClientVersion, Versions, BetterVersion). + +%%-------------Encode handshakes -------------------------------- encode_server_key(#server_dh_params{dh_p = P, dh_g = G, dh_y = Y}) -> PLen = byte_size(P), @@ -1934,6 +1675,126 @@ encode_protocol(Protocol, Acc) -> Len = byte_size(Protocol), <<Acc/binary, ?BYTE(Len), Protocol/binary>>. +enc_server_key_exchange(Version, Params, {HashAlgo, SignAlgo}, + ClientRandom, ServerRandom, PrivateKey) -> + EncParams = encode_server_key(Params), + case HashAlgo of + null -> + #server_key_params{params = Params, + params_bin = EncParams, + hashsign = {null, anon}, + signature = <<>>}; + _ -> + Hash = + server_key_exchange_hash(HashAlgo, <<ClientRandom/binary, + ServerRandom/binary, + EncParams/binary>>), + Signature = digitally_signed(Version, Hash, HashAlgo, PrivateKey), + #server_key_params{params = Params, + params_bin = EncParams, + hashsign = {HashAlgo, SignAlgo}, + signature = Signature} + end. + +%% While the RFC opens the door to allow ALPN during renegotiation, in practice +%% this does not work and it is recommended to ignore any ALPN extension during +%% renegotiation, as done here. +encode_alpn(_, true) -> + undefined; +encode_alpn(undefined, _) -> + undefined; +encode_alpn(Protocols, _) -> + #alpn{extension_data = lists:foldl(fun encode_protocol/2, <<>>, Protocols)}. + +hello_extensions_list(#hello_extensions{renegotiation_info = RenegotiationInfo, + srp = SRP, + signature_algs = HashSigns, + ec_point_formats = EcPointFormats, + elliptic_curves = EllipticCurves, + alpn = ALPN, + next_protocol_negotiation = NextProtocolNegotiation, + sni = Sni}) -> + [Ext || Ext <- [RenegotiationInfo, SRP, HashSigns, + EcPointFormats, EllipticCurves, ALPN, NextProtocolNegotiation, Sni], Ext =/= undefined]. + +%%-------------Decode handshakes--------------------------------- +dec_server_key(<<?UINT16(PLen), P:PLen/binary, + ?UINT16(GLen), G:GLen/binary, + ?UINT16(YLen), Y:YLen/binary, _/binary>> = KeyStruct, + ?KEY_EXCHANGE_DIFFIE_HELLMAN, Version) -> + Params = #server_dh_params{dh_p = P, dh_g = G, dh_y = Y}, + {BinMsg, HashSign, Signature} = dec_server_key_params(PLen + GLen + YLen + 6, KeyStruct, Version), + #server_key_params{params = Params, + params_bin = BinMsg, + hashsign = HashSign, + signature = Signature}; +%% ECParameters with named_curve +%% TODO: explicit curve +dec_server_key(<<?BYTE(?NAMED_CURVE), ?UINT16(CurveID), + ?BYTE(PointLen), ECPoint:PointLen/binary, + _/binary>> = KeyStruct, + ?KEY_EXCHANGE_EC_DIFFIE_HELLMAN, Version) -> + Params = #server_ecdh_params{curve = {namedCurve, tls_v1:enum_to_oid(CurveID)}, + public = ECPoint}, + {BinMsg, HashSign, Signature} = dec_server_key_params(PointLen + 4, KeyStruct, Version), + #server_key_params{params = Params, + params_bin = BinMsg, + hashsign = HashSign, + signature = Signature}; +dec_server_key(<<?UINT16(Len), PskIdentityHint:Len/binary, _/binary>> = KeyStruct, + KeyExchange, Version) + when KeyExchange == ?KEY_EXCHANGE_PSK; KeyExchange == ?KEY_EXCHANGE_RSA_PSK -> + Params = #server_psk_params{ + hint = PskIdentityHint}, + {BinMsg, HashSign, Signature} = dec_server_key_params(Len + 2, KeyStruct, Version), + #server_key_params{params = Params, + params_bin = BinMsg, + hashsign = HashSign, + signature = Signature}; +dec_server_key(<<?UINT16(Len), IdentityHint:Len/binary, + ?UINT16(PLen), P:PLen/binary, + ?UINT16(GLen), G:GLen/binary, + ?UINT16(YLen), Y:YLen/binary, _/binary>> = KeyStruct, + ?KEY_EXCHANGE_DHE_PSK, Version) -> + DHParams = #server_dh_params{dh_p = P, dh_g = G, dh_y = Y}, + Params = #server_dhe_psk_params{ + hint = IdentityHint, + dh_params = DHParams}, + {BinMsg, HashSign, Signature} = dec_server_key_params(Len + PLen + GLen + YLen + 8, KeyStruct, Version), + #server_key_params{params = Params, + params_bin = BinMsg, + hashsign = HashSign, + signature = Signature}; +dec_server_key(<<?UINT16(Len), IdentityHint:Len/binary, + ?BYTE(?NAMED_CURVE), ?UINT16(CurveID), + ?BYTE(PointLen), ECPoint:PointLen/binary, + _/binary>> = KeyStruct, + ?KEY_EXCHANGE_EC_DIFFIE_HELLMAN_PSK, Version) -> + DHParams = #server_ecdh_params{ + curve = {namedCurve, tls_v1:enum_to_oid(CurveID)}, + public = ECPoint}, + Params = #server_ecdhe_psk_params{ + hint = IdentityHint, + dh_params = DHParams}, + {BinMsg, HashSign, Signature} = dec_server_key_params(Len + 2 + PointLen + 4, KeyStruct, Version), + #server_key_params{params = Params, + params_bin = BinMsg, + hashsign = HashSign, + signature = Signature}; +dec_server_key(<<?UINT16(NLen), N:NLen/binary, + ?UINT16(GLen), G:GLen/binary, + ?BYTE(SLen), S:SLen/binary, + ?UINT16(BLen), B:BLen/binary, _/binary>> = KeyStruct, + ?KEY_EXCHANGE_SRP, Version) -> + Params = #server_srp_params{srp_n = N, srp_g = G, srp_s = S, srp_b = B}, + {BinMsg, HashSign, Signature} = dec_server_key_params(NLen + GLen + SLen + BLen + 7, KeyStruct, Version), + #server_key_params{params = Params, + params_bin = BinMsg, + hashsign = HashSign, + signature = Signature}; +dec_server_key(_, KeyExchange, _) -> + throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, {unknown_or_malformed_key_exchange, KeyExchange})). + dec_client_key(PKEPMS, ?KEY_EXCHANGE_RSA, {3, 0}) -> #encrypted_premaster_secret{premaster_secret = PKEPMS}; dec_client_key(<<?UINT16(_), PKEPMS/binary>>, ?KEY_EXCHANGE_RSA, _) -> @@ -2079,6 +1940,11 @@ dec_sni(<<?BYTE(?SNI_NAMETYPE_HOST_NAME), ?UINT16(Len), dec_sni(<<?BYTE(_), ?UINT16(Len), _:Len, Rest/binary>>) -> dec_sni(Rest); dec_sni(_) -> undefined. +decode_alpn(undefined) -> + undefined; +decode_alpn(#alpn{extension_data=Data}) -> + decode_protocols(Data, []). + decode_next_protocols({next_protocol_negotiation, Protocols}) -> decode_protocols(Protocols, []). @@ -2123,6 +1989,7 @@ from_2bytes(<<>>, Acc) -> lists:reverse(Acc); from_2bytes(<<?UINT16(N), Rest/binary>>, Acc) -> from_2bytes(Rest, [?uint16(N) | Acc]). + key_exchange_alg(rsa) -> ?KEY_EXCHANGE_RSA; key_exchange_alg(Alg) when Alg == dhe_rsa; Alg == dhe_dss; @@ -2146,8 +2013,123 @@ key_exchange_alg(Alg) key_exchange_alg(_) -> ?NULL. +%%-------------Cipher suite handling ----------------------------- +select_cipher_suite(CipherSuites, Suites, false) -> + select_cipher_suite(CipherSuites, Suites); +select_cipher_suite(CipherSuites, Suites, true) -> + select_cipher_suite(Suites, CipherSuites). + +select_cipher_suite([], _) -> + no_suite; +select_cipher_suite([Suite | ClientSuites], SupportedSuites) -> + case is_member(Suite, SupportedSuites) of + true -> + Suite; + false -> + select_cipher_suite(ClientSuites, SupportedSuites) + end. + +is_member(Suite, SupportedSuites) -> + lists:member(Suite, SupportedSuites). + +psk_secret(PSKIdentity, PSKLookup) -> + case handle_psk_identity(PSKIdentity, PSKLookup) of + {ok, PSK} when is_binary(PSK) -> + Len = erlang:byte_size(PSK), + <<?UINT16(Len), 0:(Len*8), ?UINT16(Len), PSK/binary>>; + #alert{} = Alert -> + Alert; + _ -> + throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) + end. + +psk_secret(PSKIdentity, PSKLookup, PremasterSecret) -> + case handle_psk_identity(PSKIdentity, PSKLookup) of + {ok, PSK} when is_binary(PSK) -> + Len = erlang:byte_size(PremasterSecret), + PSKLen = erlang:byte_size(PSK), + <<?UINT16(Len), PremasterSecret/binary, ?UINT16(PSKLen), PSK/binary>>; + #alert{} = Alert -> + Alert; + _ -> + throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) + end. + +handle_psk_identity(_PSKIdentity, LookupFun) + when LookupFun == undefined -> + error; +handle_psk_identity(PSKIdentity, {Fun, UserState}) -> + Fun(psk, PSKIdentity, UserState). + +filter_hashsigns([], [], _, Acc) -> + lists:reverse(Acc); +filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, + Acc) when KeyExchange == dhe_ecdsa; + KeyExchange == ecdhe_ecdsa -> + do_filter_hashsigns(ecdsa, Suite, Suites, Algos, HashSigns, Acc); + +filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, + Acc) when KeyExchange == rsa; + KeyExchange == dhe_rsa; + KeyExchange == ecdhe_rsa; + KeyExchange == srp_rsa; + KeyExchange == rsa_psk -> + do_filter_hashsigns(rsa, Suite, Suites, Algos, HashSigns, Acc); +filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, Acc) when + KeyExchange == dhe_dss; + KeyExchange == srp_dss -> + do_filter_hashsigns(dsa, Suite, Suites, Algos, HashSigns, Acc); +filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, Acc) when + KeyExchange == dh_dss; + KeyExchange == dh_rsa; + KeyExchange == dh_ecdsa; + KeyExchange == ecdh_rsa; + KeyExchange == ecdh_ecdsa -> + %% Fixed DH certificates MAY be signed with any hash/signature + %% algorithm pair appearing in the hash_sign extension. The names + %% DH_DSS, DH_RSA, ECDH_ECDSA, and ECDH_RSA are historical. + filter_hashsigns(Suites, Algos, HashSigns, [Suite| Acc]); +filter_hashsigns([Suite | Suites], [{KeyExchange,_,_,_} | Algos], HashSigns, Acc) when + KeyExchange == dh_anon; + KeyExchange == ecdh_anon; + KeyExchange == srp_anon; + KeyExchange == psk; + KeyExchange == dhe_psk; + KeyExchange == ecdhe_psk -> + %% In this case hashsigns is not used as the kexchange is anonaymous + filter_hashsigns(Suites, Algos, HashSigns, [Suite| Acc]). + +do_filter_hashsigns(SignAlgo, Suite, Suites, Algos, HashSigns, Acc) -> + case lists:keymember(SignAlgo, 2, HashSigns) of + true -> + filter_hashsigns(Suites, Algos, HashSigns, [Suite| Acc]); + false -> + filter_hashsigns(Suites, Algos, HashSigns, Acc) + end. + +unavailable_ecc_suites(no_curve) -> + ssl_cipher:ec_keyed_suites(); +unavailable_ecc_suites(_) -> + []. %%-------------Extension handling -------------------------------- +handle_renegotiation_extension(Role, RecordCB, Version, Info, Random, NegotiatedCipherSuite, + ClientCipherSuites, Compression, + ConnectionStates0, Renegotiation, SecureRenegotation) -> + case handle_renegotiation_info(RecordCB, Role, Info, ConnectionStates0, + Renegotiation, SecureRenegotation, + ClientCipherSuites) of + {ok, ConnectionStates} -> + hello_pending_connection_states(RecordCB, Role, + Version, + NegotiatedCipherSuite, + Random, + Compression, + ConnectionStates); + #alert{} = Alert -> + throw(Alert) + end. + %% Receive protocols, choose one from the list, return it. handle_alpn_extension(_, {error, Reason}) -> ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, Reason); @@ -2210,150 +2192,6 @@ handle_srp_extension(undefined, Session) -> handle_srp_extension(#srp{username = Username}, Session) -> Session#session{srp_username = Username}. -%%-------------Misc -------------------------------- - -select_cipher_suite(CipherSuites, Suites, false) -> - select_cipher_suite(CipherSuites, Suites); -select_cipher_suite(CipherSuites, Suites, true) -> - select_cipher_suite(Suites, CipherSuites). - -select_cipher_suite([], _) -> - no_suite; -select_cipher_suite([Suite | ClientSuites], SupportedSuites) -> - case is_member(Suite, SupportedSuites) of - true -> - Suite; - false -> - select_cipher_suite(ClientSuites, SupportedSuites) - end. - -int_to_bin(I) -> - L = (length(integer_to_list(I, 16)) + 1) div 2, - <<I:(L*8)>>. - -is_member(Suite, SupportedSuites) -> - lists:member(Suite, SupportedSuites). - -select_compression(_CompressionMetodes) -> - ?NULL. - -available_signature_algs(undefined, _) -> - undefined; -available_signature_algs(SupportedHashSigns, Version) when Version >= {3, 3} -> - #hash_sign_algos{hash_sign_algos = SupportedHashSigns}; -available_signature_algs(_, _) -> - undefined. - -psk_secret(PSKIdentity, PSKLookup) -> - case handle_psk_identity(PSKIdentity, PSKLookup) of - {ok, PSK} when is_binary(PSK) -> - Len = erlang:byte_size(PSK), - <<?UINT16(Len), 0:(Len*8), ?UINT16(Len), PSK/binary>>; - #alert{} = Alert -> - Alert; - _ -> - throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) - end. - -psk_secret(PSKIdentity, PSKLookup, PremasterSecret) -> - case handle_psk_identity(PSKIdentity, PSKLookup) of - {ok, PSK} when is_binary(PSK) -> - Len = erlang:byte_size(PremasterSecret), - PSKLen = erlang:byte_size(PSK), - <<?UINT16(Len), PremasterSecret/binary, ?UINT16(PSKLen), PSK/binary>>; - #alert{} = Alert -> - Alert; - _ -> - throw(?ALERT_REC(?FATAL, ?ILLEGAL_PARAMETER)) - end. - -handle_psk_identity(_PSKIdentity, LookupFun) - when LookupFun == undefined -> - error; -handle_psk_identity(PSKIdentity, {Fun, UserState}) -> - Fun(psk, PSKIdentity, UserState). - -crl_check(_, false, _,_,_, _, _) -> - valid; -crl_check(_, peer, _, _,_, valid, _) -> %% Do not check CAs with this option. - valid; -crl_check(OtpCert, Check, CertDbHandle, CertDbRef, {Callback, CRLDbHandle}, _, CertPath) -> - Options = [{issuer_fun, {fun(_DP, CRL, Issuer, DBInfo) -> - ssl_crl:trusted_cert_and_path(CRL, Issuer, {CertPath, - DBInfo}) - end, {CertDbHandle, CertDbRef}}}, - {update_crl, fun(DP, CRL) -> Callback:fresh_crl(DP, CRL) end}, - {undetermined_details, true} - ], - case dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) of - no_dps -> - crl_check_same_issuer(OtpCert, Check, - dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer), - Options); - DpsAndCRLs -> %% This DP list may be empty if relevant CRLs existed - %% but could not be retrived, will result in {bad_cert, revocation_status_undetermined} - case public_key:pkix_crls_validate(OtpCert, DpsAndCRLs, Options) of - {bad_cert, {revocation_status_undetermined, _}} -> - crl_check_same_issuer(OtpCert, Check, dps_and_crls(OtpCert, Callback, - CRLDbHandle, same_issuer), Options); - Other -> - Other - end - end. - -crl_check_same_issuer(OtpCert, best_effort, Dps, Options) -> - case public_key:pkix_crls_validate(OtpCert, Dps, Options) of - {bad_cert, {revocation_status_undetermined, _}} -> - valid; - Other -> - Other - end; -crl_check_same_issuer(OtpCert, _, Dps, Options) -> - public_key:pkix_crls_validate(OtpCert, Dps, Options). - -dps_and_crls(OtpCert, Callback, CRLDbHandle, ext) -> - case public_key:pkix_dist_points(OtpCert) of - [] -> - no_dps; - DistPoints -> - Issuer = OtpCert#'OTPCertificate'.tbsCertificate#'OTPTBSCertificate'.issuer, - CRLs = distpoints_lookup(DistPoints, Issuer, Callback, CRLDbHandle), - dps_and_crls(DistPoints, CRLs, []) - end; - -dps_and_crls(OtpCert, Callback, CRLDbHandle, same_issuer) -> - DP = #'DistributionPoint'{distributionPoint = {fullName, GenNames}} = - public_key:pkix_dist_point(OtpCert), - CRLs = lists:flatmap(fun({directoryName, Issuer}) -> - Callback:select(Issuer, CRLDbHandle); - (_) -> - [] - end, GenNames), - [{DP, {CRL, public_key:der_decode('CertificateList', CRL)}} || CRL <- CRLs]. - -dps_and_crls([], _, Acc) -> - Acc; -dps_and_crls([DP | Rest], CRLs, Acc) -> - DpCRL = [{DP, {CRL, public_key:der_decode('CertificateList', CRL)}} || CRL <- CRLs], - dps_and_crls(Rest, CRLs, DpCRL ++ Acc). - -distpoints_lookup([],_, _, _) -> - []; -distpoints_lookup([DistPoint | Rest], Issuer, Callback, CRLDbHandle) -> - Result = - try Callback:lookup(DistPoint, Issuer, CRLDbHandle) - catch - error:undef -> - %% The callback module still uses the 2-argument - %% version of the lookup function. - Callback:lookup(DistPoint, CRLDbHandle) - end, - case Result of - not_available -> - distpoints_lookup(Rest, Issuer, Callback, CRLDbHandle); - CRLs -> - CRLs - end. sign_algo(?rsaEncryption) -> rsa; @@ -2404,7 +2242,6 @@ is_acceptable_hash_sign(_, _, _, KeyExAlgo, _) when true; is_acceptable_hash_sign(_,_, _,_,_) -> false. - is_acceptable_hash_sign(Algos, SupportedHashSigns) -> lists:member(Algos, SupportedHashSigns). @@ -2424,27 +2261,164 @@ sign_type(dsa) -> sign_type(ecdsa) -> ?ECDSA_SIGN. - -bad_key(#'DSAPrivateKey'{}) -> - unacceptable_dsa_key; -bad_key(#'RSAPrivateKey'{}) -> - unacceptable_rsa_key; -bad_key(#'ECPrivateKey'{}) -> - unacceptable_ecdsa_key. - -available_signature_algs(undefined, SupportedHashSigns, _, Version) when - Version >= {3,3} -> - SupportedHashSigns; -available_signature_algs(#hash_sign_algos{hash_sign_algos = ClientHashSigns}, SupportedHashSigns, - _, Version) when Version >= {3,3} -> - sets:to_list(sets:intersection(sets:from_list(ClientHashSigns), - sets:from_list(SupportedHashSigns))); -available_signature_algs(_, _, _, _) -> - undefined. - server_name(_, _, server) -> undefined; %% Not interesting to check your own name. server_name(undefined, Host, client) -> {fallback, Host}; %% Fallback to Host argument to connect server_name(SNI, _, client) -> SNI. %% If Server Name Indication is available + +client_ecc_extensions(SupportedECCs) -> + CryptoSupport = proplists:get_value(public_keys, crypto:supports()), + case proplists:get_bool(ecdh, CryptoSupport) of + true -> + EcPointFormats = #ec_point_formats{ec_point_format_list = [?ECPOINT_UNCOMPRESSED]}, + EllipticCurves = SupportedECCs, + {EcPointFormats, EllipticCurves}; + _ -> + {undefined, undefined} + end. + +server_ecc_extension(_Version, EcPointFormats) -> + CryptoSupport = proplists:get_value(public_keys, crypto:supports()), + case proplists:get_bool(ecdh, CryptoSupport) of + true -> + handle_ecc_point_fmt_extension(EcPointFormats); + false -> + undefined + end. + +handle_ecc_point_fmt_extension(undefined) -> + undefined; +handle_ecc_point_fmt_extension(_) -> + #ec_point_formats{ec_point_format_list = [?ECPOINT_UNCOMPRESSED]}. + +advertises_ec_ciphers([]) -> + false; +advertises_ec_ciphers([{ecdh_ecdsa, _,_,_} | _]) -> + true; +advertises_ec_ciphers([{ecdhe_ecdsa, _,_,_} | _]) -> + true; +advertises_ec_ciphers([{ecdh_rsa, _,_,_} | _]) -> + true; +advertises_ec_ciphers([{ecdhe_rsa, _,_,_} | _]) -> + true; +advertises_ec_ciphers([{ecdh_anon, _,_,_} | _]) -> + true; +advertises_ec_ciphers([{ecdhe_psk, _,_,_} | _]) -> + true; +advertises_ec_ciphers([_| Rest]) -> + advertises_ec_ciphers(Rest). + +select_shared_curve([], _) -> + no_curve; +select_shared_curve([Curve | Rest], Curves) -> + case lists:member(Curve, Curves) of + true -> + {namedCurve, Curve}; + false -> + select_shared_curve(Rest, Curves) + end. + +sni(undefined) -> + undefined; +sni(disable) -> + undefined; +sni(Hostname) -> + #sni{hostname = Hostname}. + +renegotiation_info(_, client, _, false) -> + #renegotiation_info{renegotiated_connection = undefined}; +renegotiation_info(_RecordCB, server, ConnectionStates, false) -> + ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), + case maps:get(secure_renegotiation, ConnectionState) of + true -> + #renegotiation_info{renegotiated_connection = ?byte(0)}; + false -> + #renegotiation_info{renegotiated_connection = undefined} + end; +renegotiation_info(_RecordCB, client, ConnectionStates, true) -> + ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), + case maps:get(secure_renegotiation, ConnectionState) of + true -> + Data = maps:get(client_verify_data, ConnectionState), + #renegotiation_info{renegotiated_connection = Data}; + false -> + #renegotiation_info{renegotiated_connection = undefined} + end; + +renegotiation_info(_RecordCB, server, ConnectionStates, true) -> + ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), + case maps:get(secure_renegotiation, ConnectionState) of + true -> + CData = maps:get(client_verify_data, ConnectionState), + SData = maps:get(server_verify_data, ConnectionState), + #renegotiation_info{renegotiated_connection = <<CData/binary, SData/binary>>}; + false -> + #renegotiation_info{renegotiated_connection = undefined} + end. + +handle_renegotiation_info(_RecordCB, _, #renegotiation_info{renegotiated_connection = ?byte(0)}, + ConnectionStates, false, _, _) -> + {ok, ssl_record:set_renegotiation_flag(true, ConnectionStates)}; + +handle_renegotiation_info(_RecordCB, server, undefined, ConnectionStates, _, _, CipherSuites) -> + case is_member(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV, CipherSuites) of + true -> + {ok, ssl_record:set_renegotiation_flag(true, ConnectionStates)}; + false -> + {ok, ssl_record:set_renegotiation_flag(false, ConnectionStates)} + end; + +handle_renegotiation_info(_RecordCB, _, undefined, ConnectionStates, false, _, _) -> + {ok, ssl_record:set_renegotiation_flag(false, ConnectionStates)}; + +handle_renegotiation_info(_RecordCB, client, #renegotiation_info{renegotiated_connection = ClientServerVerify}, + ConnectionStates, true, _, _) -> + ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), + CData = maps:get(client_verify_data, ConnectionState), + SData = maps:get(server_verify_data, ConnectionState), + case <<CData/binary, SData/binary>> == ClientServerVerify of + true -> + {ok, ConnectionStates}; + false -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, client_renegotiation) + end; +handle_renegotiation_info(_RecordCB, server, #renegotiation_info{renegotiated_connection = ClientVerify}, + ConnectionStates, true, _, CipherSuites) -> + + case is_member(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV, CipherSuites) of + true -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, {server_renegotiation, empty_renegotiation_info_scsv}); + false -> + ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), + Data = maps:get(client_verify_data, ConnectionState), + case Data == ClientVerify of + true -> + {ok, ConnectionStates}; + false -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, server_renegotiation) + end + end; + +handle_renegotiation_info(RecordCB, client, undefined, ConnectionStates, true, SecureRenegotation, _) -> + handle_renegotiation_info(RecordCB, ConnectionStates, SecureRenegotation); + +handle_renegotiation_info(RecordCB, server, undefined, ConnectionStates, true, SecureRenegotation, CipherSuites) -> + case is_member(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV, CipherSuites) of + true -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, {server_renegotiation, empty_renegotiation_info_scsv}); + false -> + handle_renegotiation_info(RecordCB, ConnectionStates, SecureRenegotation) + end. + +handle_renegotiation_info(_RecordCB, ConnectionStates, SecureRenegotation) -> + ConnectionState = ssl_record:current_connection_state(ConnectionStates, read), + case {SecureRenegotation, maps:get(secure_renegotiation, ConnectionState)} of + {_, true} -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, already_secure); + {true, false} -> + ?ALERT_REC(?FATAL, ?NO_RENEGOTIATION); + {false, false} -> + {ok, ConnectionStates} + end. diff --git a/lib/ssl/src/ssl_record.erl b/lib/ssl/src/ssl_record.erl index 003ad4994b..dd6a3e8521 100644 --- a/lib/ssl/src/ssl_record.erl +++ b/lib/ssl/src/ssl_record.erl @@ -53,11 +53,11 @@ -type ssl_atom_version() :: tls_record:tls_atom_version(). -type connection_states() :: term(). %% Map -type connection_state() :: term(). %% Map + %%==================================================================== -%% Internal application API +%% Connection state handling %%==================================================================== - %%-------------------------------------------------------------------- -spec current_connection_state(connection_states(), read | write) -> connection_state(). @@ -267,6 +267,9 @@ set_pending_cipher_state(#{pending_read := Read, pending_read => Read#{cipher_state => ServerState}, pending_write => Write#{cipher_state => ClientState}}. +%%==================================================================== +%% Compression +%%==================================================================== uncompress(?NULL, Data, CS) -> {Data, CS}. @@ -282,6 +285,11 @@ compress(?NULL, Data, CS) -> compressions() -> [?byte(?NULL)]. + +%%==================================================================== +%% Payload encryption/decryption +%%==================================================================== + %%-------------------------------------------------------------------- -spec cipher(ssl_version(), iodata(), connection_state(), MacHash::binary()) -> {CipherFragment::binary(), connection_state()}. diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl index 62452808ae..43422fab8d 100644 --- a/lib/ssl/src/tls_connection.erl +++ b/lib/ssl/src/tls_connection.erl @@ -45,10 +45,8 @@ %% Setup -export([start_fsm/8, start_link/7, init/1]). --export([encode_data/3, encode_alert/3]). - %% State transition handling --export([next_record/1, next_event/3, next_event/4]). +-export([next_record/1, next_event/3, next_event/4, handle_common_event/4]). %% Handshake handling -export([renegotiate/2, send_handshake/2, @@ -56,11 +54,11 @@ reinit_handshake_data/1, select_sni_extension/1, empty_connection_state/2]). %% Alert and close handling --export([send_alert/2, close/5, protocol_name/0]). +-export([encode_alert/3, send_alert/2, close/5, protocol_name/0]). %% Data handling --export([passive_receive/2, next_record_if_active/1, handle_common_event/4, send/3, - socket/5, setopts/3, getopts/3]). +-export([encode_data/3, passive_receive/2, next_record_if_active/1, send/3, + socket/5, setopts/3, getopts/3]). %% gen_statem state functions -export([init/3, error/3, downgrade/3, %% Initiation and take down states @@ -72,6 +70,9 @@ %%==================================================================== %% Internal application API %%==================================================================== +%%==================================================================== +%% Setup +%%==================================================================== start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = false},_, Tracker} = Opts, User, {CbModule, _,_, _} = CbInfo, Timeout) -> @@ -100,6 +101,168 @@ start_fsm(Role, Host, Port, Socket, {#ssl_options{erl_dist = true},_, Tracker} = Error end. +%%-------------------------------------------------------------------- +-spec start_link(atom(), host(), inet:port_number(), port(), list(), pid(), tuple()) -> + {ok, pid()} | ignore | {error, reason()}. +%% +%% Description: Creates a gen_statem process which calls Module:init/1 to +%% initialize. +%%-------------------------------------------------------------------- +start_link(Role, Host, Port, Socket, Options, User, CbInfo) -> + {ok, proc_lib:spawn_link(?MODULE, init, [[Role, Host, Port, Socket, Options, User, CbInfo]])}. + +init([Role, Host, Port, Socket, Options, User, CbInfo]) -> + process_flag(trap_exit, true), + State0 = initial_state(Role, Host, Port, Socket, Options, User, CbInfo), + try + State = ssl_connection:ssl_config(State0#state.ssl_options, Role, State0), + gen_statem:enter_loop(?MODULE, [], init, State) + catch throw:Error -> + gen_statem:enter_loop(?MODULE, [], error, {Error, State0}) + end. +%%==================================================================== +%% State transition handling +%%==================================================================== +next_record(#state{unprocessed_handshake_events = N} = State) when N > 0 -> + {no_record, State#state{unprocessed_handshake_events = N-1}}; + +next_record(#state{protocol_buffers = + #protocol_buffers{tls_packets = [], tls_cipher_texts = [CT | Rest]} + = Buffers, + connection_states = ConnStates0, + ssl_options = #ssl_options{padding_check = Check}} = State) -> + case tls_record:decode_cipher_text(CT, ConnStates0, Check) of + {Plain, ConnStates} -> + {Plain, State#state{protocol_buffers = + Buffers#protocol_buffers{tls_cipher_texts = Rest}, + connection_states = ConnStates}}; + #alert{} = Alert -> + {Alert, State} + end; +next_record(#state{protocol_buffers = #protocol_buffers{tls_packets = [], tls_cipher_texts = []}, + socket = Socket, + transport_cb = Transport} = State) -> + case tls_socket:setopts(Transport, Socket, [{active,once}]) of + ok -> + {no_record, State}; + _ -> + {socket_closed, State} + end; +next_record(State) -> + {no_record, State}. + +next_event(StateName, Record, State) -> + next_event(StateName, Record, State, []). + +next_event(StateName, socket_closed, State, _) -> + ssl_connection:handle_normal_shutdown(?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), StateName, State), + {stop, {shutdown, transport_closed}, State}; +next_event(connection = StateName, no_record, State0, Actions) -> + case next_record_if_active(State0) of + {no_record, State} -> + ssl_connection:hibernate_after(StateName, State, Actions); + {socket_closed, State} -> + next_event(StateName, socket_closed, State, Actions); + {#ssl_tls{} = Record, State} -> + {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]}; + {#alert{} = Alert, State} -> + {next_state, StateName, State, [{next_event, internal, Alert} | Actions]} + end; +next_event(StateName, Record, State, Actions) -> + case Record of + no_record -> + {next_state, StateName, State, Actions}; + #ssl_tls{} = Record -> + {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]}; + #alert{} = Alert -> + {next_state, StateName, State, [{next_event, internal, Alert} | Actions]} + end. + +handle_common_event(internal, #alert{} = Alert, StateName, + #state{negotiated_version = Version} = State) -> + ssl_connection:handle_own_alert(Alert, Version, StateName, State); +%%% TLS record protocol level handshake messages +handle_common_event(internal, #ssl_tls{type = ?HANDSHAKE, fragment = Data}, + StateName, #state{protocol_buffers = + #protocol_buffers{tls_handshake_buffer = Buf0} = Buffers, + negotiated_version = Version, + ssl_options = Options} = State0) -> + try + {Packets, Buf} = tls_handshake:get_tls_handshake(Version,Data,Buf0, Options), + State1 = + State0#state{protocol_buffers = + Buffers#protocol_buffers{tls_handshake_buffer = Buf}}, + case Packets of + [] -> + assert_buffer_sanity(Buf, Options), + {Record, State} = next_record(State1), + next_event(StateName, Record, State); + _ -> + Events = tls_handshake_events(Packets), + case StateName of + connection -> + ssl_connection:hibernate_after(StateName, State1, Events); + _ -> + {next_state, StateName, + State1#state{unprocessed_handshake_events = unprocessed_events(Events)}, Events} + end + end + catch throw:#alert{} = Alert -> + ssl_connection:handle_own_alert(Alert, Version, StateName, State0) + end; +%%% TLS record protocol level application data messages +handle_common_event(internal, #ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, StateName, State) -> + {next_state, StateName, State, [{next_event, internal, {application_data, Data}}]}; +%%% TLS record protocol level change cipher messages +handle_common_event(internal, #ssl_tls{type = ?CHANGE_CIPHER_SPEC, fragment = Data}, StateName, State) -> + {next_state, StateName, State, [{next_event, internal, #change_cipher_spec{type = Data}}]}; +%%% TLS record protocol level Alert messages +handle_common_event(internal, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, StateName, + #state{negotiated_version = Version} = State) -> + try decode_alerts(EncAlerts) of + Alerts = [_|_] -> + handle_alerts(Alerts, {next_state, StateName, State}); + [] -> + ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, empty_alert), + Version, StateName, State); + #alert{} = Alert -> + ssl_connection:handle_own_alert(Alert, Version, StateName, State) + catch + _:_ -> + ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, alert_decode_error), + Version, StateName, State) + + end; +%% Ignore unknown TLS record level protocol messages +handle_common_event(internal, #ssl_tls{type = _Unknown}, StateName, State) -> + {next_state, StateName, State}. +%%==================================================================== +%% Handshake handling +%%==================================================================== +renegotiate(#state{role = client} = State, Actions) -> + %% Handle same way as if server requested + %% the renegotiation + Hs0 = ssl_handshake:init_handshake_history(), + {next_state, connection, State#state{tls_handshake_history = Hs0}, + [{next_event, internal, #hello_request{}} | Actions]}; + +renegotiate(#state{role = server, + socket = Socket, + transport_cb = Transport, + negotiated_version = Version, + connection_states = ConnectionStates0} = State0, Actions) -> + HelloRequest = ssl_handshake:hello_request(), + Frag = tls_handshake:encode_handshake(HelloRequest, Version), + Hs0 = ssl_handshake:init_handshake_history(), + {BinMsg, ConnectionStates} = + tls_record:encode_handshake(Frag, Version, ConnectionStates0), + send(Transport, Socket, BinMsg), + State1 = State0#state{connection_states = + ConnectionStates, + tls_handshake_history = Hs0}, + {Record, State} = next_record(State1), + next_event(hello, Record, State, Actions). + send_handshake(Handshake, State) -> send_handshake_flight(queue_handshake(Handshake, State)). @@ -128,15 +291,6 @@ queue_change_cipher(Msg, #state{negotiated_version = Version, State0#state{connection_states = ConnectionStates, flight_buffer = Flight0 ++ [BinChangeCipher]}. -send_alert(Alert, #state{negotiated_version = Version, - socket = Socket, - transport_cb = Transport, - connection_states = ConnectionStates0} = State0) -> - {BinMsg, ConnectionStates} = - encode_alert(Alert, Version, ConnectionStates0), - send(Transport, Socket, BinMsg), - State0#state{connection_states = ConnectionStates}. - reinit_handshake_data(State) -> %% premaster_secret, public_key_info and tls_handshake_info %% are only needed during the handshake phase. @@ -155,8 +309,17 @@ select_sni_extension(_) -> empty_connection_state(ConnectionEnd, BeastMitigation) -> ssl_record:empty_connection_state(ConnectionEnd, BeastMitigation). -encode_data(Data, Version, ConnectionStates0)-> - tls_record:encode_data(Data, Version, ConnectionStates0). +%%==================================================================== +%% Alert and close handling +%%==================================================================== +send_alert(Alert, #state{negotiated_version = Version, + socket = Socket, + transport_cb = Transport, + connection_states = ConnectionStates0} = State0) -> + {BinMsg, ConnectionStates} = + encode_alert(Alert, Version, ConnectionStates0), + send(Transport, Socket, BinMsg), + State0#state{connection_states = ConnectionStates}. %%-------------------------------------------------------------------- -spec encode_alert(#alert{}, ssl_record:ssl_version(), ssl_record:connection_states()) -> @@ -166,42 +329,66 @@ encode_data(Data, Version, ConnectionStates0)-> %%-------------------------------------------------------------------- encode_alert(#alert{} = Alert, Version, ConnectionStates) -> tls_record:encode_alert_record(Alert, Version, ConnectionStates). - +%% User closes or recursive call! +close({close, Timeout}, Socket, Transport = gen_tcp, _,_) -> + tls_socket:setopts(Transport, Socket, [{active, false}]), + Transport:shutdown(Socket, write), + _ = Transport:recv(Socket, 0, Timeout), + ok; +%% Peer closed socket +close({shutdown, transport_closed}, Socket, Transport = gen_tcp, ConnectionStates, Check) -> + close({close, 0}, Socket, Transport, ConnectionStates, Check); +%% We generate fatal alert +close({shutdown, own_alert}, Socket, Transport = gen_tcp, ConnectionStates, Check) -> + %% Standard trick to try to make sure all + %% data sent to the tcp port is really delivered to the + %% peer application before tcp port is closed so that the peer will + %% get the correct TLS alert message and not only a transport close. + %% Will return when other side has closed or after timout millisec + %% e.g. we do not want to hang if something goes wrong + %% with the network but we want to maximise the odds that + %% peer application gets all data sent on the tcp connection. + close({close, ?DEFAULT_TIMEOUT}, Socket, Transport, ConnectionStates, Check); +close(downgrade, _,_,_,_) -> + ok; +%% Other +close(_, Socket, Transport, _,_) -> + Transport:close(Socket). protocol_name() -> "TLS". -%%==================================================================== -%% tls_connection_sup API -%%==================================================================== -%%-------------------------------------------------------------------- --spec start_link(atom(), host(), inet:port_number(), port(), list(), pid(), tuple()) -> - {ok, pid()} | ignore | {error, reason()}. -%% -%% Description: Creates a gen_fsm process which calls Module:init/1 to -%% initialize. To ensure a synchronized start-up procedure, this function -%% does not return until Module:init/1 has returned. -%%-------------------------------------------------------------------- -start_link(Role, Host, Port, Socket, Options, User, CbInfo) -> - {ok, proc_lib:spawn_link(?MODULE, init, [[Role, Host, Port, Socket, Options, User, CbInfo]])}. +%%==================================================================== +%% Data handling +%%==================================================================== +encode_data(Data, Version, ConnectionStates0)-> + tls_record:encode_data(Data, Version, ConnectionStates0). -init([Role, Host, Port, Socket, Options, User, CbInfo]) -> - process_flag(trap_exit, true), - State0 = initial_state(Role, Host, Port, Socket, Options, User, CbInfo), - try - State = ssl_connection:ssl_config(State0#state.ssl_options, Role, State0), - gen_statem:enter_loop(?MODULE, [], init, State) - catch throw:Error -> - gen_statem:enter_loop(?MODULE, [], error, {Error, State0}) +passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) -> + case Buffer of + <<>> -> + {Record, State} = next_record(State0), + next_event(StateName, Record, State); + _ -> + {Record, State} = ssl_connection:read_application_data(<<>>, State0), + next_event(StateName, Record, State) end. -callback_mode() -> - state_functions. +next_record_if_active(State = + #state{socket_options = + #socket_options{active = false}}) -> + {no_record ,State}; +next_record_if_active(State) -> + next_record(State). + +send(Transport, Socket, Data) -> + tls_socket:send(Transport, Socket, Data). socket(Pid, Transport, Socket, Connection, Tracker) -> tls_socket:socket(Pid, Transport, Socket, Connection, Tracker). setopts(Transport, Socket, Other) -> tls_socket:setopts(Transport, Socket, Other). + getopts(Transport, Socket, Tag) -> tls_socket:getopts(Transport, Socket, Tag). @@ -394,134 +581,18 @@ death_row(Type, Event, State) -> downgrade(Type, Event, State) -> ssl_connection:?FUNCTION_NAME(Type, Event, State, ?MODULE). -%%-------------------------------------------------------------------- -%% Event handling functions called by state functions to handle -%% common or unexpected events for the state. -%%-------------------------------------------------------------------- -handle_call(Event, From, StateName, State) -> - ssl_connection:handle_call(Event, From, StateName, State, ?MODULE). - -%% raw data from socket, unpack records -handle_info({Protocol, _, Data}, StateName, - #state{data_tag = Protocol} = State0) -> - case next_tls_record(Data, State0) of - {Record, State} -> - next_event(StateName, Record, State); - #alert{} = Alert -> - ssl_connection:handle_normal_shutdown(Alert, StateName, State0), - {stop, {shutdown, own_alert}} - end; -handle_info({CloseTag, Socket}, StateName, - #state{socket = Socket, close_tag = CloseTag, - socket_options = #socket_options{active = Active}, - protocol_buffers = #protocol_buffers{tls_cipher_texts = CTs}, - negotiated_version = Version} = State) -> - - %% Note that as of TLS 1.1, - %% failure to properly close a connection no longer requires that a - %% session not be resumed. This is a change from TLS 1.0 to conform - %% with widespread implementation practice. - - case (Active == false) andalso (CTs =/= []) of - false -> - case Version of - {1, N} when N >= 1 -> - ok; - _ -> - %% As invalidate_sessions here causes performance issues, - %% we will conform to the widespread implementation - %% practice and go aginst the spec - %%invalidate_session(Role, Host, Port, Session) - ok - end, - - ssl_connection:handle_normal_shutdown(?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), StateName, State), - {stop, {shutdown, transport_closed}}; - true -> - %% Fixes non-delivery of final TLS record in {active, once}. - %% Basically allows the application the opportunity to set {active, once} again - %% and then receive the final message. - next_event(StateName, no_record, State) - end; -handle_info(Msg, StateName, State) -> - ssl_connection:StateName(info, Msg, State, ?MODULE). - -handle_common_event(internal, #alert{} = Alert, StateName, - #state{negotiated_version = Version} = State) -> - ssl_connection:handle_own_alert(Alert, Version, StateName, State); - -%%% TLS record protocol level handshake messages -handle_common_event(internal, #ssl_tls{type = ?HANDSHAKE, fragment = Data}, - StateName, #state{protocol_buffers = - #protocol_buffers{tls_handshake_buffer = Buf0} = Buffers, - negotiated_version = Version, - ssl_options = Options} = State0) -> - try - {Packets, Buf} = tls_handshake:get_tls_handshake(Version,Data,Buf0, Options), - State1 = - State0#state{protocol_buffers = - Buffers#protocol_buffers{tls_handshake_buffer = Buf}}, - case Packets of - [] -> - assert_buffer_sanity(Buf, Options), - {Record, State} = next_record(State1), - next_event(StateName, Record, State); - _ -> - Events = tls_handshake_events(Packets), - case StateName of - connection -> - ssl_connection:hibernate_after(StateName, State1, Events); - _ -> - {next_state, StateName, - State1#state{unprocessed_handshake_events = unprocessed_events(Events)}, Events} - end - end - catch throw:#alert{} = Alert -> - ssl_connection:handle_own_alert(Alert, Version, StateName, State0) - end; -%%% TLS record protocol level application data messages -handle_common_event(internal, #ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, StateName, State) -> - {next_state, StateName, State, [{next_event, internal, {application_data, Data}}]}; -%%% TLS record protocol level change cipher messages -handle_common_event(internal, #ssl_tls{type = ?CHANGE_CIPHER_SPEC, fragment = Data}, StateName, State) -> - {next_state, StateName, State, [{next_event, internal, #change_cipher_spec{type = Data}}]}; -%%% TLS record protocol level Alert messages -handle_common_event(internal, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, StateName, - #state{negotiated_version = Version} = State) -> - try decode_alerts(EncAlerts) of - Alerts = [_|_] -> - handle_alerts(Alerts, {next_state, StateName, State}); - [] -> - ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, empty_alert), - Version, StateName, State); - #alert{} = Alert -> - ssl_connection:handle_own_alert(Alert, Version, StateName, State) - catch - _:_ -> - ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, alert_decode_error), - Version, StateName, State) - - end; -%% Ignore unknown TLS record level protocol messages -handle_common_event(internal, #ssl_tls{type = _Unknown}, StateName, State) -> - {next_state, StateName, State}. - -send(Transport, Socket, Data) -> - tls_socket:send(Transport, Socket, Data). - -%%-------------------------------------------------------------------- +%-------------------------------------------------------------------- %% gen_statem callbacks %%-------------------------------------------------------------------- +callback_mode() -> + state_functions. + terminate(Reason, StateName, State) -> catch ssl_connection:terminate(Reason, StateName, State). format_status(Type, Data) -> ssl_connection:format_status(Type, Data). -%%-------------------------------------------------------------------- -%% code_change(OldVsn, StateName, State, Extra) -> {ok, StateName, NewState} -%% Description: Convert process state when code is changed -%%-------------------------------------------------------------------- code_change(_OldVsn, StateName, State0, {Direction, From, To}) -> State = convert_state(State0, Direction, From, To), {ok, StateName, State}; @@ -531,19 +602,6 @@ code_change(_OldVsn, StateName, State, _) -> %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- -encode_handshake(Handshake, Version, ConnectionStates0, Hist0, V2HComp) -> - Frag = tls_handshake:encode_handshake(Handshake, Version), - Hist = ssl_handshake:update_handshake_history(Hist0, Frag, V2HComp), - {Encoded, ConnectionStates} = - tls_record:encode_handshake(Frag, Version, ConnectionStates0), - {Encoded, ConnectionStates, Hist}. - -encode_change_cipher(#change_cipher_spec{}, Version, ConnectionStates) -> - tls_record:encode_change_cipher_spec(Version, ConnectionStates). - -decode_alerts(Bin) -> - ssl_alert:decode(Bin). - initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, Tracker}, User, {CbModule, DataTag, CloseTag, ErrorTag}) -> #ssl_options{beast_mitigation = BeastMitigation} = SSLOptions, @@ -593,108 +651,59 @@ next_tls_record(Data, #state{protocol_buffers = #protocol_buffers{tls_record_buf #alert{} = Alert -> Alert end. -next_record(#state{unprocessed_handshake_events = N} = State) when N > 0 -> - {no_record, State#state{unprocessed_handshake_events = N-1}}; - -next_record(#state{protocol_buffers = - #protocol_buffers{tls_packets = [], tls_cipher_texts = [CT | Rest]} - = Buffers, - connection_states = ConnStates0, - ssl_options = #ssl_options{padding_check = Check}} = State) -> - case tls_record:decode_cipher_text(CT, ConnStates0, Check) of - {Plain, ConnStates} -> - {Plain, State#state{protocol_buffers = - Buffers#protocol_buffers{tls_cipher_texts = Rest}, - connection_states = ConnStates}}; - #alert{} = Alert -> - {Alert, State} - end; -next_record(#state{protocol_buffers = #protocol_buffers{tls_packets = [], tls_cipher_texts = []}, - socket = Socket, - transport_cb = Transport} = State) -> - case tls_socket:setopts(Transport, Socket, [{active,once}]) of - ok -> - {no_record, State}; - _ -> - {socket_closed, State} - end; -next_record(State) -> - {no_record, State}. - -next_record_if_active(State = - #state{socket_options = - #socket_options{active = false}}) -> - {no_record ,State}; - -next_record_if_active(State) -> - next_record(State). - -passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) -> - case Buffer of - <<>> -> - {Record, State} = next_record(State0), - next_event(StateName, Record, State); - _ -> - {Record, State} = ssl_connection:read_application_data(<<>>, State0), - next_event(StateName, Record, State) - end. - -next_event(StateName, Record, State) -> - next_event(StateName, Record, State, []). - -next_event(StateName, socket_closed, State, _) -> - ssl_connection:handle_normal_shutdown(?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), StateName, State), - {stop, {shutdown, transport_closed}, State}; -next_event(connection = StateName, no_record, State0, Actions) -> - case next_record_if_active(State0) of - {no_record, State} -> - ssl_connection:hibernate_after(StateName, State, Actions); - {socket_closed, State} -> - next_event(StateName, socket_closed, State, Actions); - {#ssl_tls{} = Record, State} -> - {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]}; - {#alert{} = Alert, State} -> - {next_state, StateName, State, [{next_event, internal, Alert} | Actions]} - end; -next_event(StateName, Record, State, Actions) -> - case Record of - no_record -> - {next_state, StateName, State, Actions}; - #ssl_tls{} = Record -> - {next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]}; - #alert{} = Alert -> - {next_state, StateName, State, [{next_event, internal, Alert} | Actions]} - end. tls_handshake_events(Packets) -> lists:map(fun(Packet) -> {next_event, internal, {handshake, Packet}} end, Packets). +handle_call(Event, From, StateName, State) -> + ssl_connection:handle_call(Event, From, StateName, State, ?MODULE). + +%% raw data from socket, unpack records +handle_info({Protocol, _, Data}, StateName, + #state{data_tag = Protocol} = State0) -> + case next_tls_record(Data, State0) of + {Record, State} -> + next_event(StateName, Record, State); + #alert{} = Alert -> + ssl_connection:handle_normal_shutdown(Alert, StateName, State0), + {stop, {shutdown, own_alert}} + end; +handle_info({CloseTag, Socket}, StateName, + #state{socket = Socket, close_tag = CloseTag, + socket_options = #socket_options{active = Active}, + protocol_buffers = #protocol_buffers{tls_cipher_texts = CTs}, + negotiated_version = Version} = State) -> -renegotiate(#state{role = client} = State, Actions) -> - %% Handle same way as if server requested - %% the renegotiation - Hs0 = ssl_handshake:init_handshake_history(), - {next_state, connection, State#state{tls_handshake_history = Hs0}, - [{next_event, internal, #hello_request{}} | Actions]}; + %% Note that as of TLS 1.1, + %% failure to properly close a connection no longer requires that a + %% session not be resumed. This is a change from TLS 1.0 to conform + %% with widespread implementation practice. -renegotiate(#state{role = server, - socket = Socket, - transport_cb = Transport, - negotiated_version = Version, - connection_states = ConnectionStates0} = State0, Actions) -> - HelloRequest = ssl_handshake:hello_request(), - Frag = tls_handshake:encode_handshake(HelloRequest, Version), - Hs0 = ssl_handshake:init_handshake_history(), - {BinMsg, ConnectionStates} = - tls_record:encode_handshake(Frag, Version, ConnectionStates0), - send(Transport, Socket, BinMsg), - State1 = State0#state{connection_states = - ConnectionStates, - tls_handshake_history = Hs0}, - {Record, State} = next_record(State1), - next_event(hello, Record, State, Actions). + case (Active == false) andalso (CTs =/= []) of + false -> + case Version of + {1, N} when N >= 1 -> + ok; + _ -> + %% As invalidate_sessions here causes performance issues, + %% we will conform to the widespread implementation + %% practice and go aginst the spec + %%invalidate_session(Role, Host, Port, Session) + ok + end, + + ssl_connection:handle_normal_shutdown(?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), StateName, State), + {stop, {shutdown, transport_closed}}; + true -> + %% Fixes non-delivery of final TLS record in {active, once}. + %% Basically allows the application the opportunity to set {active, once} again + %% and then receive the final message. + next_event(StateName, no_record, State) + end; +handle_info(Msg, StateName, State) -> + ssl_connection:StateName(info, Msg, State, ?MODULE). handle_alerts([], Result) -> Result; @@ -705,43 +714,18 @@ handle_alerts([Alert | Alerts], {next_state, StateName, State}) -> handle_alerts([Alert | Alerts], {next_state, StateName, State, _Actions}) -> handle_alerts(Alerts, ssl_connection:handle_alert(Alert, StateName, State)). +encode_handshake(Handshake, Version, ConnectionStates0, Hist0, V2HComp) -> + Frag = tls_handshake:encode_handshake(Handshake, Version), + Hist = ssl_handshake:update_handshake_history(Hist0, Frag, V2HComp), + {Encoded, ConnectionStates} = + tls_record:encode_handshake(Frag, Version, ConnectionStates0), + {Encoded, ConnectionStates, Hist}. -%% User closes or recursive call! -close({close, Timeout}, Socket, Transport = gen_tcp, _,_) -> - tls_socket:setopts(Transport, Socket, [{active, false}]), - Transport:shutdown(Socket, write), - _ = Transport:recv(Socket, 0, Timeout), - ok; -%% Peer closed socket -close({shutdown, transport_closed}, Socket, Transport = gen_tcp, ConnectionStates, Check) -> - close({close, 0}, Socket, Transport, ConnectionStates, Check); -%% We generate fatal alert -close({shutdown, own_alert}, Socket, Transport = gen_tcp, ConnectionStates, Check) -> - %% Standard trick to try to make sure all - %% data sent to the tcp port is really delivered to the - %% peer application before tcp port is closed so that the peer will - %% get the correct TLS alert message and not only a transport close. - %% Will return when other side has closed or after timout millisec - %% e.g. we do not want to hang if something goes wrong - %% with the network but we want to maximise the odds that - %% peer application gets all data sent on the tcp connection. - close({close, ?DEFAULT_TIMEOUT}, Socket, Transport, ConnectionStates, Check); -close(downgrade, _,_,_,_) -> - ok; -%% Other -close(_, Socket, Transport, _,_) -> - Transport:close(Socket). - -convert_state(#state{ssl_options = Options} = State, up, "5.3.5", "5.3.6") -> - State#state{ssl_options = convert_options_partial_chain(Options, up)}; -convert_state(#state{ssl_options = Options} = State, down, "5.3.6", "5.3.5") -> - State#state{ssl_options = convert_options_partial_chain(Options, down)}. +encode_change_cipher(#change_cipher_spec{}, Version, ConnectionStates) -> + tls_record:encode_change_cipher_spec(Version, ConnectionStates). -convert_options_partial_chain(Options, up) -> - {Head, Tail} = lists:split(5, tuple_to_list(Options)), - list_to_tuple(Head ++ [{partial_chain, fun(_) -> unknown_ca end}] ++ Tail); -convert_options_partial_chain(Options, down) -> - list_to_tuple(proplists:delete(partial_chain, tuple_to_list(Options))). +decode_alerts(Bin) -> + ssl_alert:decode(Bin). gen_handshake(GenConnection, StateName, Type, Event, #state{negotiated_version = Version} = State) -> @@ -806,3 +790,14 @@ assert_buffer_sanity(Bin, _) -> throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, malformed_handshake_data)) end. + +convert_state(#state{ssl_options = Options} = State, up, "5.3.5", "5.3.6") -> + State#state{ssl_options = convert_options_partial_chain(Options, up)}; +convert_state(#state{ssl_options = Options} = State, down, "5.3.6", "5.3.5") -> + State#state{ssl_options = convert_options_partial_chain(Options, down)}. + +convert_options_partial_chain(Options, up) -> + {Head, Tail} = lists:split(5, tuple_to_list(Options)), + list_to_tuple(Head ++ [{partial_chain, fun(_) -> unknown_ca end}] ++ Tail); +convert_options_partial_chain(Options, down) -> + list_to_tuple(proplists:delete(partial_chain, tuple_to_list(Options))). diff --git a/lib/ssl/src/tls_handshake.erl b/lib/ssl/src/tls_handshake.erl index b54540393a..a38c5704a6 100644 --- a/lib/ssl/src/tls_handshake.erl +++ b/lib/ssl/src/tls_handshake.erl @@ -32,13 +32,19 @@ -include("ssl_cipher.hrl"). -include_lib("public_key/include/public_key.hrl"). --export([client_hello/8, hello/4, - get_tls_handshake/4, encode_handshake/2, decode_handshake/4]). +%% Handshake handling +-export([client_hello/8, hello/4]). + +%% Handshake encoding +-export([encode_handshake/2]). + +%% Handshake decodeing +-export([get_tls_handshake/4, decode_handshake/4]). -type tls_handshake() :: #client_hello{} | ssl_handshake:ssl_handshake(). %%==================================================================== -%% Internal application API +%% Handshake handling %%==================================================================== %%-------------------------------------------------------------------- -spec client_hello(host(), inet:port_number(), ssl_record:connection_states(), @@ -54,15 +60,18 @@ client_hello(Host, Port, ConnectionStates, } = SslOpts, Cache, CacheCb, Renegotiation, OwnCert) -> Version = tls_record:highest_protocol_version(Versions), - #{security_parameters := SecParams} = ssl_record:pending_connection_state(ConnectionStates, read), + #{security_parameters := SecParams} = + ssl_record:pending_connection_state(ConnectionStates, read), AvailableCipherSuites = ssl_handshake:available_suites(UserSuites, Version), Extensions = ssl_handshake:client_hello_extensions(Version, AvailableCipherSuites, - SslOpts, ConnectionStates, Renegotiation), + SslOpts, ConnectionStates, + Renegotiation), CipherSuites = case Fallback of true -> - [?TLS_FALLBACK_SCSV | ssl_handshake:cipher_suites(AvailableCipherSuites, Renegotiation)]; + [?TLS_FALLBACK_SCSV | + ssl_handshake:cipher_suites(AvailableCipherSuites, Renegotiation)]; false -> ssl_handshake:cipher_suites(AvailableCipherSuites, Renegotiation) end, @@ -85,8 +94,8 @@ client_hello(Host, Port, ConnectionStates, ssl_record:connection_states(), alpn | npn, binary() | undefined}| {tls_record:tls_version(), {resumed | new, #session{}}, ssl_record:connection_states(), binary() | undefined, - #hello_extensions{}, {ssl_cipher:hash(), ssl_cipher:sign_algo()} | undefined} | - #alert{}. + #hello_extensions{}, {ssl_cipher:hash(), ssl_cipher:sign_algo()} | + undefined} | #alert{}. %% %% Description: Handles a received hello message %%-------------------------------------------------------------------- @@ -99,7 +108,8 @@ hello(#server_hello{server_version = Version, random = Random, case tls_record:is_acceptable_version(Version, SupportedVersions) of true -> handle_server_hello_extensions(Version, SessionId, Random, CipherSuite, - Compression, HelloExt, SslOpt, ConnectionStates0, Renegotiation); + Compression, HelloExt, SslOpt, + ConnectionStates0, Renegotiation); false -> ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION) end; @@ -127,18 +137,29 @@ hello(#client_hello{client_version = ClientVersion, ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE, malformed_handshake_data) end. + +%%-------------------------------------------------------------------- +%%% Handshake encodeing +%%-------------------------------------------------------------------- + %%-------------------------------------------------------------------- -spec encode_handshake(tls_handshake(), tls_record:tls_version()) -> iolist(). %% %% Description: Encode a handshake packet -%%--------------------------------------------------------------------x +%%-------------------------------------------------------------------- encode_handshake(Package, Version) -> {MsgType, Bin} = enc_handshake(Package, Version), Len = byte_size(Bin), [MsgType, ?uint24(Len), Bin]. + +%%-------------------------------------------------------------------- +%%% Handshake decodeing +%%-------------------------------------------------------------------- + %%-------------------------------------------------------------------- --spec get_tls_handshake(tls_record:tls_version(), binary(), binary() | iolist(), #ssl_options{}) -> +-spec get_tls_handshake(tls_record:tls_version(), binary(), binary() | iolist(), + #ssl_options{}) -> {[tls_handshake()], binary()}. %% %% Description: Given buffered and new data from ssl_record, collects @@ -153,37 +174,45 @@ get_tls_handshake(Version, Data, Buffer, Options) -> %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- -handle_client_hello(Version, #client_hello{session_id = SugesstedId, - cipher_suites = CipherSuites, - compression_methods = Compressions, - random = Random, - extensions = #hello_extensions{elliptic_curves = Curves, - signature_algs = ClientHashSigns} = HelloExt}, +handle_client_hello(Version, + #client_hello{session_id = SugesstedId, + cipher_suites = CipherSuites, + compression_methods = Compressions, + random = Random, + extensions = + #hello_extensions{elliptic_curves = Curves, + signature_algs = ClientHashSigns} + = HelloExt}, #ssl_options{versions = Versions, signature_algs = SupportedHashSigns, eccs = SupportedECCs, honor_ecc_order = ECCOrder} = SslOpts, - {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert, _}, Renegotiation) -> + {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert, _}, + Renegotiation) -> case tls_record:is_acceptable_version(Version, Versions) of true -> AvailableHashSigns = ssl_handshake:available_signature_algs( ClientHashSigns, SupportedHashSigns, Cert, Version), ECCCurve = ssl_handshake:select_curve(Curves, SupportedECCs, ECCOrder), {Type, #session{cipher_suite = CipherSuite} = Session1} - = ssl_handshake:select_session(SugesstedId, CipherSuites, AvailableHashSigns, Compressions, - Port, Session0#session{ecc = ECCCurve}, Version, - SslOpts, Cache, CacheCb, Cert), + = ssl_handshake:select_session(SugesstedId, CipherSuites, + AvailableHashSigns, Compressions, + Port, Session0#session{ecc = ECCCurve}, + Version, SslOpts, Cache, CacheCb, Cert), case CipherSuite of no_suite -> ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY, no_suitable_ciphers); _ -> {KeyExAlg,_,_,_} = ssl_cipher:suite_definition(CipherSuite), - case ssl_handshake:select_hashsign(ClientHashSigns, Cert, KeyExAlg, SupportedHashSigns, Version) of + case ssl_handshake:select_hashsign(ClientHashSigns, Cert, KeyExAlg, + SupportedHashSigns, Version) of #alert{} = Alert -> Alert; HashSign -> - handle_client_hello_extensions(Version, Type, Random, CipherSuites, HelloExt, - SslOpts, Session1, ConnectionStates0, + handle_client_hello_extensions(Version, Type, Random, + CipherSuites, HelloExt, + SslOpts, Session1, + ConnectionStates0, Renegotiation, HashSign) end end; @@ -191,6 +220,59 @@ handle_client_hello(Version, #client_hello{session_id = SugesstedId, ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION) end. +handle_client_hello_extensions(Version, Type, Random, CipherSuites, + HelloExt, SslOpts, Session0, ConnectionStates0, + Renegotiation, HashSign) -> + try ssl_handshake:handle_client_hello_extensions(tls_record, Random, CipherSuites, + HelloExt, Version, SslOpts, + Session0, ConnectionStates0, + Renegotiation) of + #alert{} = Alert -> + Alert; + {Session, ConnectionStates, Protocol, ServerHelloExt} -> + {Version, {Type, Session}, ConnectionStates, Protocol, + ServerHelloExt, HashSign} + catch throw:Alert -> + Alert + end. + + +handle_server_hello_extensions(Version, SessionId, Random, CipherSuite, + Compression, HelloExt, SslOpt, ConnectionStates0, Renegotiation) -> + case ssl_handshake:handle_server_hello_extensions(tls_record, Random, CipherSuite, + Compression, HelloExt, Version, + SslOpt, ConnectionStates0, + Renegotiation) of + #alert{} = Alert -> + Alert; + {ConnectionStates, ProtoExt, Protocol} -> + {Version, SessionId, ConnectionStates, ProtoExt, Protocol} + end. +%%-------------------------------------------------------------------- +enc_handshake(#hello_request{}, _Version) -> + {?HELLO_REQUEST, <<>>}; +enc_handshake(#client_hello{client_version = {Major, Minor}, + random = Random, + session_id = SessionID, + cipher_suites = CipherSuites, + compression_methods = CompMethods, + extensions = HelloExtensions}, _Version) -> + SIDLength = byte_size(SessionID), + BinCompMethods = list_to_binary(CompMethods), + CmLength = byte_size(BinCompMethods), + BinCipherSuites = list_to_binary(CipherSuites), + CsLength = byte_size(BinCipherSuites), + ExtensionsBin = ssl_handshake:encode_hello_extensions(HelloExtensions), + + {?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, + ?BYTE(SIDLength), SessionID/binary, + ?UINT16(CsLength), BinCipherSuites/binary, + ?BYTE(CmLength), BinCompMethods/binary, ExtensionsBin/binary>>}; + +enc_handshake(HandshakeMsg, Version) -> + ssl_handshake:encode_handshake(HandshakeMsg, Version). + +%%-------------------------------------------------------------------- get_tls_handshake_aux(Version, <<?BYTE(Type), ?UINT24(Length), Body:Length/binary,Rest/binary>>, #ssl_options{v2_hello_compatible = V2Hello} = Opts, Acc) -> @@ -219,11 +301,12 @@ decode_handshake(_Version, ?CLIENT_HELLO, Bin, true) -> decode_handshake(_Version, ?CLIENT_HELLO, Bin, false) -> decode_hello(Bin); -decode_handshake(_Version, ?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, - ?BYTE(SID_length), Session_ID:SID_length/binary, - ?UINT16(Cs_length), CipherSuites:Cs_length/binary, - ?BYTE(Cm_length), Comp_methods:Cm_length/binary, - Extensions/binary>>, _) -> +decode_handshake(_Version, ?CLIENT_HELLO, + <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, + ?BYTE(SID_length), Session_ID:SID_length/binary, + ?UINT16(Cs_length), CipherSuites:Cs_length/binary, + ?BYTE(Cm_length), Comp_methods:Cm_length/binary, + Extensions/binary>>, _) -> DecodedExtensions = ssl_handshake:decode_hello_extensions({client, Extensions}), @@ -268,53 +351,3 @@ decode_v2_hello(<<?BYTE(Major), ?BYTE(Minor), compression_methods = [?NULL], extensions = #hello_extensions{} }. - -enc_handshake(#hello_request{}, _Version) -> - {?HELLO_REQUEST, <<>>}; -enc_handshake(#client_hello{client_version = {Major, Minor}, - random = Random, - session_id = SessionID, - cipher_suites = CipherSuites, - compression_methods = CompMethods, - extensions = HelloExtensions}, _Version) -> - SIDLength = byte_size(SessionID), - BinCompMethods = list_to_binary(CompMethods), - CmLength = byte_size(BinCompMethods), - BinCipherSuites = list_to_binary(CipherSuites), - CsLength = byte_size(BinCipherSuites), - ExtensionsBin = ssl_handshake:encode_hello_extensions(HelloExtensions), - - {?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, - ?BYTE(SIDLength), SessionID/binary, - ?UINT16(CsLength), BinCipherSuites/binary, - ?BYTE(CmLength), BinCompMethods/binary, ExtensionsBin/binary>>}; - -enc_handshake(HandshakeMsg, Version) -> - ssl_handshake:encode_handshake(HandshakeMsg, Version). - - -handle_client_hello_extensions(Version, Type, Random, CipherSuites, - HelloExt, SslOpts, Session0, ConnectionStates0, Renegotiation, HashSign) -> - try ssl_handshake:handle_client_hello_extensions(tls_record, Random, CipherSuites, - HelloExt, Version, SslOpts, - Session0, ConnectionStates0, Renegotiation) of - #alert{} = Alert -> - Alert; - {Session, ConnectionStates, Protocol, ServerHelloExt} -> - {Version, {Type, Session}, ConnectionStates, Protocol, ServerHelloExt, HashSign} - catch throw:Alert -> - Alert - end. - - -handle_server_hello_extensions(Version, SessionId, Random, CipherSuite, - Compression, HelloExt, SslOpt, ConnectionStates0, Renegotiation) -> - case ssl_handshake:handle_server_hello_extensions(tls_record, Random, CipherSuite, - Compression, HelloExt, Version, - SslOpt, ConnectionStates0, Renegotiation) of - #alert{} = Alert -> - Alert; - {ConnectionStates, ProtoExt, Protocol} -> - {Version, SessionId, ConnectionStates, ProtoExt, Protocol} - end. - diff --git a/lib/ssl/src/tls_record.erl b/lib/ssl/src/tls_record.erl index 4ac6cdc6b5..ab179c1bf0 100644 --- a/lib/ssl/src/tls_record.erl +++ b/lib/ssl/src/tls_record.erl @@ -39,15 +39,15 @@ encode_change_cipher_spec/2, encode_data/3]). -export([encode_plain_text/4]). +%% Decoding +-export([decode_cipher_text/3]). + %% Protocol version handling -export([protocol_version/1, lowest_protocol_version/1, lowest_protocol_version/2, highest_protocol_version/1, highest_protocol_version/2, is_higher/2, supported_protocol_versions/0, is_acceptable_version/1, is_acceptable_version/2, hello_version/2]). -%% Decoding --export([decode_cipher_text/3]). - -export_type([tls_version/0, tls_atom_version/0]). -type tls_version() :: ssl_record:ssl_version(). @@ -56,13 +56,12 @@ -compile(inline). %%==================================================================== -%% Internal application API +%% Handling of incoming data %%==================================================================== %%-------------------------------------------------------------------- -spec init_connection_states(client | server, one_n_minus_one | zero_n | disabled) -> ssl_record:connection_states(). -%% % - % +%% %% Description: Creates a connection_states record with appropriate %% values for the initial SSL connection setup. %%-------------------------------------------------------------------- @@ -87,6 +86,10 @@ get_tls_records(Data, <<>>) -> get_tls_records(Data, Buffer) -> get_tls_records_aux(list_to_binary([Buffer, Data]), []). +%%==================================================================== +%% Encoding +%%==================================================================== + %%-------------------------------------------------------------------- -spec encode_handshake(iolist(), tls_version(), ssl_record:connection_states()) -> {iolist(), ssl_record:connection_states()}. @@ -141,6 +144,74 @@ encode_data(Frag, Version, Data = split_bin(Frag, ?MAX_PLAIN_TEXT_LENGTH, Version, BCA, BeastMitigation), encode_iolist(?APPLICATION_DATA, Data, Version, ConnectionStates). +%%==================================================================== +%% Decoding +%%==================================================================== + +%%-------------------------------------------------------------------- +-spec decode_cipher_text(#ssl_tls{}, ssl_record:connection_states(), boolean()) -> + {#ssl_tls{}, ssl_record:connection_states()}| #alert{}. +%% +%% Description: Decode cipher text +%%-------------------------------------------------------------------- +decode_cipher_text(#ssl_tls{type = Type, version = Version, + fragment = CipherFragment} = CipherText, + #{current_read := + #{compression_state := CompressionS0, + sequence_number := Seq, + cipher_state := CipherS0, + security_parameters := + #security_parameters{ + cipher_type = ?AEAD, + bulk_cipher_algorithm = + BulkCipherAlgo, + compression_algorithm = CompAlg} + } = ReadState0} = ConnnectionStates0, _) -> + AAD = calc_aad(Type, Version, ReadState0), + case ssl_cipher:decipher_aead(BulkCipherAlgo, CipherS0, Seq, AAD, CipherFragment, Version) of + {PlainFragment, CipherS1} -> + {Plain, CompressionS1} = ssl_record:uncompress(CompAlg, + PlainFragment, CompressionS0), + ConnnectionStates = ConnnectionStates0#{ + current_read => ReadState0#{ + cipher_state => CipherS1, + sequence_number => Seq + 1, + compression_state => CompressionS1}}, + {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates}; + #alert{} = Alert -> + Alert + end; + +decode_cipher_text(#ssl_tls{type = Type, version = Version, + fragment = CipherFragment} = CipherText, + #{current_read := + #{compression_state := CompressionS0, + sequence_number := Seq, + security_parameters := + #security_parameters{compression_algorithm = CompAlg} + } = ReadState0} = ConnnectionStates0, PaddingCheck) -> + case ssl_record:decipher(Version, CipherFragment, ReadState0, PaddingCheck) of + {PlainFragment, Mac, ReadState1} -> + MacHash = ssl_cipher:calc_mac_hash(Type, Version, PlainFragment, ReadState1), + case ssl_record:is_correct_mac(Mac, MacHash) of + true -> + {Plain, CompressionS1} = ssl_record:uncompress(CompAlg, + PlainFragment, CompressionS0), + ConnnectionStates = ConnnectionStates0#{ + current_read => ReadState1#{ + sequence_number => Seq + 1, + compression_state => CompressionS1}}, + {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates}; + false -> + ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC) + end; + #alert{} = Alert -> + Alert + end. + +%%==================================================================== +%% Protocol version handling +%%==================================================================== %%-------------------------------------------------------------------- -spec protocol_version(tls_atom_version() | tls_version()) -> @@ -278,11 +349,6 @@ supported_protocol_versions([_|_] = Vsns) -> end end. -%%-------------------------------------------------------------------- -%% -%% Description: ssl version 2 is not acceptable security risks are too big. -%% -%%-------------------------------------------------------------------- -spec is_acceptable_version(tls_version()) -> boolean(). is_acceptable_version({N,_}) when N >= ?LOWEST_MAJOR_SUPPORTED_VERSION -> @@ -302,6 +368,7 @@ hello_version(Version, _) when Version >= {3, 3} -> Version; hello_version(_, Versions) -> lowest_protocol_version(Versions). + %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- @@ -376,37 +443,17 @@ get_tls_records_aux(Data, Acc) -> false -> ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE) end. - +%%-------------------------------------------------------------------- encode_plain_text(Type, Version, Data, #{current_write := Write0} = ConnectionStates) -> {CipherFragment, Write1} = do_encode_plain_text(Type, Version, Data, Write0), {CipherText, Write} = encode_tls_cipher_text(Type, Version, CipherFragment, Write1), {CipherText, ConnectionStates#{current_write => Write}}. -lowest_list_protocol_version(Ver, []) -> - Ver; -lowest_list_protocol_version(Ver1, [Ver2 | Rest]) -> - lowest_list_protocol_version(lowest_protocol_version(Ver1, Ver2), Rest). - -highest_list_protocol_version(Ver, []) -> - Ver; -highest_list_protocol_version(Ver1, [Ver2 | Rest]) -> - highest_list_protocol_version(highest_protocol_version(Ver1, Ver2), Rest). - encode_tls_cipher_text(Type, {MajVer, MinVer}, Fragment, #{sequence_number := Seq} = Write) -> Length = erlang:iolist_size(Fragment), {[<<?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer), ?UINT16(Length)>>, Fragment], Write#{sequence_number => Seq +1}}. -highest_protocol_version() -> - highest_protocol_version(supported_protocol_versions()). - -lowest_protocol_version() -> - lowest_protocol_version(supported_protocol_versions()). - -sufficient_tlsv1_2_crypto_support() -> - CryptoSupport = crypto:supports(), - proplists:get_bool(sha256, proplists:get_value(hashs, CryptoSupport)). - encode_iolist(Type, Data, Version, ConnectionStates0) -> {ConnectionStates, EncodedMsg} = lists:foldl(fun(Text, {CS0, Encoded}) -> @@ -415,6 +462,31 @@ encode_iolist(Type, Data, Version, ConnectionStates0) -> {CS1, [Enc | Encoded]} end, {ConnectionStates0, []}, Data), {lists:reverse(EncodedMsg), ConnectionStates}. +%%-------------------------------------------------------------------- +do_encode_plain_text(Type, Version, Data, #{compression_state := CompS0, + security_parameters := + #security_parameters{ + cipher_type = ?AEAD, + compression_algorithm = CompAlg} + } = WriteState0) -> + {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0), + WriteState1 = WriteState0#{compression_state => CompS1}, + AAD = calc_aad(Type, Version, WriteState1), + ssl_record:cipher_aead(Version, Comp, WriteState1, AAD); +do_encode_plain_text(Type, Version, Data, #{compression_state := CompS0, + security_parameters := + #security_parameters{compression_algorithm = CompAlg} + }= WriteState0) -> + {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0), + WriteState1 = WriteState0#{compression_state => CompS1}, + MacHash = ssl_cipher:calc_mac_hash(Type, Version, Comp, WriteState1), + ssl_record:cipher(Version, Comp, WriteState1, MacHash); +do_encode_plain_text(_,_,_,CS) -> + exit({cs, CS}). +%%-------------------------------------------------------------------- +calc_aad(Type, {MajVer, MinVer}, + #{sequence_number := SeqNo}) -> + <<?UINT64(SeqNo), ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>. %% 1/n-1 splitting countermeasure Rizzo/Duong-Beast, RC4 chiphers are %% not vulnerable to this attack. @@ -440,89 +512,25 @@ do_split_bin(Bin, ChunkSize, Acc) -> _ -> lists:reverse(Acc, [Bin]) end. - %%-------------------------------------------------------------------- --spec decode_cipher_text(#ssl_tls{}, ssl_record:connection_states(), boolean()) -> - {#ssl_tls{}, ssl_record:connection_states()}| #alert{}. -%% -%% Description: Decode cipher text -%%-------------------------------------------------------------------- -decode_cipher_text(#ssl_tls{type = Type, version = Version, - fragment = CipherFragment} = CipherText, - #{current_read := - #{compression_state := CompressionS0, - sequence_number := Seq, - cipher_state := CipherS0, - security_parameters := - #security_parameters{ - cipher_type = ?AEAD, - bulk_cipher_algorithm = - BulkCipherAlgo, - compression_algorithm = CompAlg} - } = ReadState0} = ConnnectionStates0, _) -> - AAD = calc_aad(Type, Version, ReadState0), - case ssl_cipher:decipher_aead(BulkCipherAlgo, CipherS0, Seq, AAD, CipherFragment, Version) of - {PlainFragment, CipherS1} -> - {Plain, CompressionS1} = ssl_record:uncompress(CompAlg, - PlainFragment, CompressionS0), - ConnnectionStates = ConnnectionStates0#{ - current_read => ReadState0#{ - cipher_state => CipherS1, - sequence_number => Seq + 1, - compression_state => CompressionS1}}, - {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates}; - #alert{} = Alert -> - Alert - end; +lowest_list_protocol_version(Ver, []) -> + Ver; +lowest_list_protocol_version(Ver1, [Ver2 | Rest]) -> + lowest_list_protocol_version(lowest_protocol_version(Ver1, Ver2), Rest). -decode_cipher_text(#ssl_tls{type = Type, version = Version, - fragment = CipherFragment} = CipherText, - #{current_read := - #{compression_state := CompressionS0, - sequence_number := Seq, - security_parameters := - #security_parameters{compression_algorithm = CompAlg} - } = ReadState0} = ConnnectionStates0, PaddingCheck) -> - case ssl_record:decipher(Version, CipherFragment, ReadState0, PaddingCheck) of - {PlainFragment, Mac, ReadState1} -> - MacHash = ssl_cipher:calc_mac_hash(Type, Version, PlainFragment, ReadState1), - case ssl_record:is_correct_mac(Mac, MacHash) of - true -> - {Plain, CompressionS1} = ssl_record:uncompress(CompAlg, - PlainFragment, CompressionS0), - ConnnectionStates = ConnnectionStates0#{ - current_read => ReadState1#{ - sequence_number => Seq + 1, - compression_state => CompressionS1}}, - {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates}; - false -> - ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC) - end; - #alert{} = Alert -> - Alert - end. +highest_list_protocol_version(Ver, []) -> + Ver; +highest_list_protocol_version(Ver1, [Ver2 | Rest]) -> + highest_list_protocol_version(highest_protocol_version(Ver1, Ver2), Rest). + +highest_protocol_version() -> + highest_protocol_version(supported_protocol_versions()). + +lowest_protocol_version() -> + lowest_protocol_version(supported_protocol_versions()). + +sufficient_tlsv1_2_crypto_support() -> + CryptoSupport = crypto:supports(), + proplists:get_bool(sha256, proplists:get_value(hashs, CryptoSupport)). -do_encode_plain_text(Type, Version, Data, #{compression_state := CompS0, - security_parameters := - #security_parameters{ - cipher_type = ?AEAD, - compression_algorithm = CompAlg} - } = WriteState0) -> - {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0), - WriteState1 = WriteState0#{compression_state => CompS1}, - AAD = calc_aad(Type, Version, WriteState1), - ssl_record:cipher_aead(Version, Comp, WriteState1, AAD); -do_encode_plain_text(Type, Version, Data, #{compression_state := CompS0, - security_parameters := - #security_parameters{compression_algorithm = CompAlg} - }= WriteState0) -> - {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0), - WriteState1 = WriteState0#{compression_state => CompS1}, - MacHash = ssl_cipher:calc_mac_hash(Type, Version, Comp, WriteState1), - ssl_record:cipher(Version, Comp, WriteState1, MacHash); -do_encode_plain_text(_,_,_,CS) -> - exit({cs, CS}). -calc_aad(Type, {MajVer, MinVer}, - #{sequence_number := SeqNo}) -> - <<?UINT64(SeqNo), ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>. diff --git a/lib/stdlib/doc/src/Makefile b/lib/stdlib/doc/src/Makefile index aeed79408b..af27efa6c1 100644 --- a/lib/stdlib/doc/src/Makefile +++ b/lib/stdlib/doc/src/Makefile @@ -105,7 +105,8 @@ XML_REF3_FILES = \ XML_REF6_FILES = stdlib_app.xml XML_PART_FILES = part.xml -XML_CHAPTER_FILES = io_protocol.xml unicode_usage.xml notes.xml notes_history.xml assert_hrl.xml +XML_CHAPTER_FILES = introduction.xml io_protocol.xml unicode_usage.xml \ + notes.xml assert_hrl.xml BOOK_FILES = book.xml diff --git a/lib/stdlib/doc/src/maps.xml b/lib/stdlib/doc/src/maps.xml index 8c7270816b..987d92989d 100644 --- a/lib/stdlib/doc/src/maps.xml +++ b/lib/stdlib/doc/src/maps.xml @@ -33,16 +33,31 @@ <p>This module contains functions for maps processing.</p> </description> + <datatypes> + <datatype> + <name name="iterator"/> + <desc> + <p>An iterator representing the key value associations in a map.</p> + <p>Created using <seealso marker="#iterator-1"><c>maps:iterator/1</c></seealso>.</p> + <p>Consumed by <seealso marker="#next-1"><c>maps:next/1</c></seealso>, + <seealso marker="#filter-2"><c>maps:filter/2</c></seealso>, + <seealso marker="#fold-3"><c>maps:fold/3</c></seealso> and + <seealso marker="#map-2"><c>maps:map/2</c></seealso>.</p> + </desc> + </datatype> + </datatypes> + <funcs> <func> <name name="filter" arity="2"/> <fsummary>Select pairs that satisfy a predicate.</fsummary> <desc> - <p>Returns a map <c><anno>Map2</anno></c> for which predicate - <c><anno>Pred</anno></c> holds true in <c><anno>Map1</anno></c>.</p> + <p>Returns a map <c><anno>Map</anno></c> for which predicate + <c><anno>Pred</anno></c> holds true in <c><anno>MapOrIter</anno></c>.</p> <p>The call fails with a <c>{badmap,Map}</c> exception if - <c><anno>Map1</anno></c> is not a map, or with <c>badarg</c> if - <c><anno>Pred</anno></c> is not a function of arity 2.</p> + <c><anno>MapOrIter</anno></c> is not a map or valid iterator, + or with <c>badarg</c> if <c><anno>Pred</anno></c> is not a + function of arity 2.</p> <p><em>Example:</em></p> <code type="none"> > M = #{a => 2, b => 3, c=> 4, "a" => 1, "b" => 2, "c" => 4}, @@ -76,12 +91,16 @@ <fsummary></fsummary> <desc> <p>Calls <c>F(K, V, AccIn)</c> for every <c><anno>K</anno></c> to value - <c><anno>V</anno></c> association in <c><anno>Map</anno></c> in + <c><anno>V</anno></c> association in <c><anno>MapOrIter</anno></c> in any order. Function <c>fun F/3</c> must return a new accumulator, which is passed to the next successive call. This function returns the final value of the accumulator. The initial accumulator value <c><anno>Init</anno></c> is returned if the map is empty.</p> + <p>The call fails with a <c>{badmap,Map}</c> exception if + <c><anno>MapOrIter</anno></c> is not a map or valid iterator, + or with <c>badarg</c> if <c><anno>Fun</anno></c> is not a + function of arity 3.</p> <p><em>Example:</em></p> <code type="none"> > Fun = fun(K,V,AccIn) when is_list(K) -> AccIn + V end, @@ -169,6 +188,32 @@ false</code> </func> <func> + <name name="iterator" arity="1"/> + <fsummary>Create a map iterator.</fsummary> + <desc> + <p>Returns a map iterator <c><anno>Iterator</anno></c> that can + be used by <seealso marker="#next-1"><c>maps:next/1</c></seealso> + to traverse the key-value associations in a map. When iterating + over a map, the memory usage is guaranteed to be bounded no matter + the size of the map.</p> + <p>The call fails with a <c>{badmap,Map}</c> exception if + <c><anno>Map</anno></c> is not a map.</p> + <p><em>Example:</em></p> + <code type="none"> +> M = #{ a => 1, b => 2 }. +#{a => 1,b => 2} +> I = maps:iterator(M). +[{a,1},{b,2}] +> {K1, V1, I2} = maps:next(I). +{a,1,[{b,2}]} +> {K2, V2, I3} = maps:next(I2). +{b,2,[]} +> maps:next(I3). +none</code> + </desc> + </func> + + <func> <name name="keys" arity="1"/> <fsummary></fsummary> <desc> @@ -188,12 +233,16 @@ false</code> <name name="map" arity="2"/> <fsummary></fsummary> <desc> - <p>Produces a new map <c><anno>Map2</anno></c> by calling function + <p>Produces a new map <c><anno>Map</anno></c> by calling function <c>fun F(K, V1)</c> for every <c><anno>K</anno></c> to value - <c><anno>V1</anno></c> association in <c><anno>Map1</anno></c> in + <c><anno>V1</anno></c> association in <c><anno>MapOrIter</anno></c> in any order. Function <c>fun F/2</c> must return value <c><anno>V2</anno></c> to be associated with key <c><anno>K</anno></c> - for the new map <c><anno>Map2</anno></c>.</p> + for the new map <c><anno>Map</anno></c>.</p> + <p>The call fails with a <c>{badmap,Map}</c> exception if + <c><anno>MapOrIter</anno></c> is not a map or valid iterator, + or with <c>badarg</c> if <c><anno>Fun</anno></c> is not a + function of arity 2.</p> <p><em>Example:</em></p> <code type="none"> > Fun = fun(K,V1) when is_list(K) -> V1*2 end, @@ -234,6 +283,35 @@ false</code> </func> <func> + <name name="next" arity="1"/> + <fsummary>Get the next key and value from an iterator.</fsummary> + <desc> + <p>Returns the next key-value association in + <c><anno>Iterator</anno></c> and a new iterator for the + remaining associations in the iterator. + </p> + <p> + If there are no more associations in the iterator, + <c>none</c> is returned. + </p> + <p><em>Example:</em></p> + <code type="none"> +> Map = #{a => 1, b => 2, c => 3}. +#{a => 1,b => 2,c => 3} +> Iter = maps:iterator(Map). +[{a,1},{b,2},{c,3}] +> {_, _, Iter1} = maps:next(Iter). +{a,1,[{b,2},{c,3}]} +> {_, _, Iter2} = maps:next(Iter1). +{b,2,[{c,3}]} +> {_, _, Iter3} = maps:next(Iter2). +{c,3,[]} +> maps:next(Iter3). +none</code> + </desc> + </func> + + <func> <name name="put" arity="3"/> <fsummary></fsummary> <desc> diff --git a/lib/stdlib/doc/src/uri_string.xml b/lib/stdlib/doc/src/uri_string.xml index 9ace2b0a05..21f470e763 100644 --- a/lib/stdlib/doc/src/uri_string.xml +++ b/lib/stdlib/doc/src/uri_string.xml @@ -31,7 +31,8 @@ <modulesummary>URI processing functions.</modulesummary> <description> <p>This module contains functions for parsing and handling URIs - (<url href="https://www.ietf.org/rfc/rfc3986.txt">RFC 3986</url>). + (<url href="https://www.ietf.org/rfc/rfc3986.txt">RFC 3986</url>) and + form-urlencoded query strings (<url href="https://www.w3.org/TR/html5/forms.html">HTML5</url>). </p> <p>A URI is an identifier consisting of a sequence of characters matching the syntax rule named <em>URI</em> in <url href="https://www.ietf.org/rfc/rfc3986.txt">RFC 3986</url>. @@ -71,6 +72,13 @@ <item>Transforming URIs into a normalized form<br></br> <seealso marker="#normalize/1"><c>normalize/1</c></seealso> </item> + <item>Composing form-urlencoded query strings from a list of key-value pairs<br></br> + <seealso marker="#compose_query/1"><c>compose_query/1</c></seealso><br></br> + <seealso marker="#compose_query/2"><c>compose_query/2</c></seealso> + </item> + <item>Dissecting form-urlencoded query strings into a list of key-value pairs<br></br> + <seealso marker="#dissect_query/1"><c>dissect_query/1</c></seealso> + </item> </list> <p>There are four different encodings present during the handling of URIs:</p> <list type="bulleted"> @@ -102,12 +110,15 @@ <desc> <p>Error tuple indicating the type of error. Possible values of the second component:</p> <list type="bulleted"> + <item><c>invalid_character</c></item> + <item><c>invalid_encoding</c></item> <item><c>invalid_input</c></item> <item><c>invalid_map</c></item> <item><c>invalid_percent_encoding</c></item> <item><c>invalid_scheme</c></item> <item><c>invalid_uri</c></item> <item><c>invalid_utf8</c></item> + <item><c>missing_value</c></item> </list> <p>The third component is a term providing additional information about the cause of the error.</p> @@ -134,6 +145,91 @@ <funcs> <func> + <name name="compose_query" arity="1"/> + <fsummary>Compose urlencoded query string.</fsummary> + <desc> + <p>Composes a form-urlencoded <c><anno>QueryString</anno></c> based on a + <c><anno>QueryList</anno></c>, a list of non-percent-encoded key-value pairs. + Form-urlencoding is defined in section + 4.10.22.6 of the <url href="https://www.w3.org/TR/html5/forms.html">HTML5</url> + specification. + </p> + <p>See also the opposite operation <seealso marker="#dissect_query/1"> + <c>dissect_query/1</c></seealso>. + </p> + <p><em>Example:</em></p> + <pre> +1> <input>uri_string:compose_query([{"foo bar","1"},{"city","örebro"}]).</input> +<![CDATA["foo+bar=1&city=%C3%B6rebro"]]> +2> <![CDATA[uri_string:compose_query([{<<"foo bar">>,<<"1">>}, +2> {<<"city">>,<<"örebro"/utf8>>}]).]]> +<![CDATA[<<"foo+bar=1&city=%C3%B6rebro">>]]> + </pre> + </desc> + </func> + + <func> + <name name="compose_query" arity="2"/> + <fsummary>Compose urlencoded query string.</fsummary> + <desc> + <p>Same as <c>compose_query/1</c> but with an additional + <c><anno>Options</anno></c> parameter, that controls the encoding ("charset") + used by the encoding algorithm. There are two supported encodings: <c>utf8</c> + (or <c>unicode</c>) and <c>latin1</c>. + </p> + <p>Each character in the entry's name and value that cannot be expressed using + the selected character encoding, is replaced by a string consisting of a U+0026 + AMPERSAND character (<![CDATA[&]]>), a "#" (U+0023) character, one or more ASCII + digits representing the Unicode code point of the character in base ten, and + finally a ";" (U+003B) character. + </p> + <p>Bytes that are out of the range 0x2A, 0x2D, 0x2E, 0x30 to 0x39, 0x41 to 0x5A, 0x5F, + 0x61 to 0x7A, are percent-encoded (U+0025 PERCENT SIGN character (%) followed by + uppercase ASCII hex digits representing the hexadecimal value of the byte). + </p> + <p>See also the opposite operation <seealso marker="#dissect_query/1"> + <c>dissect_query/1</c></seealso>. + </p> + <p><em>Example:</em></p> + <pre> +1> <input>uri_string:compose_query([{"foo bar","1"},{"city","örebro"}],</input> +1> [{encoding, latin1}]). +<![CDATA["foo+bar=1&city=%F6rebro" +2> uri_string:compose_query([{<<"foo bar">>,<<"1">>}, +2> {<<"city">>,<<"東京"/utf8>>}], [{encoding, latin1}]).]]> +<![CDATA[<<"foo+bar=1&city=%26%2326481%3B%26%2320140%3B">>]]> + </pre> + </desc> + </func> + + <func> + <name name="dissect_query" arity="1"/> + <fsummary>Dissect query string.</fsummary> + <desc> + <p>Dissects an urlencoded <c><anno>QueryString</anno></c> and returns a + <c><anno>QueryList</anno></c>, a list of non-percent-encoded key-value pairs. + Form-urlencoding is defined in section + 4.10.22.6 of the <url href="https://www.w3.org/TR/html5/forms.html">HTML5</url> + specification. + </p> + <p>It is not as strict for its input as the decoding algorithm defined by + <url href="https://www.w3.org/TR/html5/forms.html">HTML5</url> + and accepts all unicode characters.</p> + <p>See also the opposite operation <seealso marker="#compose_query/1"> + <c>compose_query/1</c></seealso>. + </p> + <p><em>Example:</em></p> + <pre> +1> <input><![CDATA[uri_string:dissect_query("foo+bar=1&city=%C3%B6rebro").]]></input> +[{"foo bar","1"},{"city","örebro"}] +2> <![CDATA[uri_string:dissect_query(<<"foo+bar=1&city=%26%2326481%3B%26%2320140%3B">>).]]> +<![CDATA[[{<<"foo bar">>,<<"1">>}, + {<<"city">>,<<230,157,177,228,186,172>>}] ]]> + </pre> + </desc> + </func> + + <func> <name name="normalize" arity="1"/> <fsummary>Syntax-based normalization.</fsummary> <desc> diff --git a/lib/stdlib/src/io_lib.erl b/lib/stdlib/src/io_lib.erl index 9d447418f8..3c8430b820 100644 --- a/lib/stdlib/src/io_lib.erl +++ b/lib/stdlib/src/io_lib.erl @@ -963,7 +963,18 @@ limit_tail(Other, D) -> %% maps:from_list() creates a map with the same internal ordering of %% the selected associations as in Map. limit_map(Map, D) -> - maps:from_list(erts_internal:maps_to_list(Map, D)). + limit_map(maps:iterator(Map), D, []). + +limit_map(_I, 0, Acc) -> + maps:from_list(Acc); +limit_map(I, D, Acc) -> + case maps:next(I) of + {K, V, NextI} -> + limit_map(NextI, D-1, [{K,V} | Acc]); + none -> + maps:from_list(Acc) + end. + %% maps:from_list(limit_map_body(erts_internal:maps_to_list(Map, D), D)). %% limit_map_body(_, 0) -> [{'...', '...'}]; diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl index 505613b80e..89e1931d2d 100644 --- a/lib/stdlib/src/io_lib_pretty.erl +++ b/lib/stdlib/src/io_lib_pretty.erl @@ -478,9 +478,19 @@ print_length(Term, _D, _RF, _Enc, _Str) -> print_length_map(_Map, 1, _RF, _Enc, _Str) -> {"#{...}", 6}; print_length_map(Map, D, RF, Enc, Str) when is_map(Map) -> - Pairs = print_length_map_pairs(erts_internal:maps_to_list(Map, D), D, RF, Enc, Str), + Pairs = print_length_map_pairs(limit_map(maps:iterator(Map), D, []), D, RF, Enc, Str), {{map, Pairs}, list_length(Pairs, 3)}. +limit_map(_I, 0, Acc) -> + Acc; +limit_map(I, D, Acc) -> + case maps:next(I) of + {K, V, NextI} -> + limit_map(NextI, D-1, [{K,V} | Acc]); + none -> + Acc + end. + print_length_map_pairs([], _D, _RF, _Enc, _Str) -> []; print_length_map_pairs(_Pairs, 1, _RF, _Enc, _Str) -> diff --git a/lib/stdlib/src/maps.erl b/lib/stdlib/src/maps.erl index 5dafdb282a..a13f340709 100644 --- a/lib/stdlib/src/maps.erl +++ b/lib/stdlib/src/maps.erl @@ -23,7 +23,8 @@ -export([get/3, filter/2,fold/3, map/2, size/1, update_with/3, update_with/4, - without/2, with/2]). + without/2, with/2, + iterator/1, next/1]). %% BIFs -export([get/2, find/2, from_list/1, @@ -31,6 +32,15 @@ new/0, put/3, remove/2, take/2, to_list/1, update/3, values/1]). +-opaque iterator() :: {term(), term(), iterator()} + | none | nonempty_improper_list(integer(),map()). + +-export_type([iterator/0]). + +-dialyzer({no_improper_lists, iterator/1}). + +-define(IS_ITERATOR(I), is_tuple(I) andalso tuple_size(I) == 3; I == none; is_integer(hd(I)) andalso is_map(tl(I))). + %% Shadowed by erl_bif_types: maps:get/2 -spec get(Key,Map) -> Value when Key :: term(), @@ -39,7 +49,6 @@ get(_,_) -> erlang:nif_error(undef). - -spec find(Key,Map) -> {ok, Value} | error when Key :: term(), Map :: map(), @@ -114,14 +123,20 @@ remove(_,_) -> erlang:nif_error(undef). take(_,_) -> erlang:nif_error(undef). -%% Shadowed by erl_bif_types: maps:to_list/1 -spec to_list(Map) -> [{Key,Value}] when Map :: map(), Key :: term(), Value :: term(). -to_list(_) -> erlang:nif_error(undef). +to_list(Map) when is_map(Map) -> + to_list_internal(erts_internal:map_next(0, Map, [])); +to_list(Map) -> + erlang:error({badmap,Map},[Map]). +to_list_internal([Iter, Map | Acc]) when is_integer(Iter) -> + to_list_internal(erts_internal:map_next(Iter, Map, Acc)); +to_list_internal(Acc) -> + Acc. %% Shadowed by erl_bif_types: maps:update/3 -spec update(Key,Value,Map1) -> Map2 when @@ -192,47 +207,80 @@ get(Key,Map,Default) -> erlang:error({badmap,Map},[Key,Map,Default]). --spec filter(Pred,Map1) -> Map2 when +-spec filter(Pred,MapOrIter) -> Map when Pred :: fun((Key, Value) -> boolean()), Key :: term(), Value :: term(), - Map1 :: map(), - Map2 :: map(). + MapOrIter :: map() | iterator(), + Map :: map(). filter(Pred,Map) when is_function(Pred,2), is_map(Map) -> - maps:from_list([{K,V}||{K,V}<-maps:to_list(Map),Pred(K,V)]); + maps:from_list(filter_1(Pred, iterator(Map))); +filter(Pred,Iterator) when is_function(Pred,2), ?IS_ITERATOR(Iterator) -> + maps:from_list(filter_1(Pred, Iterator)); filter(Pred,Map) -> erlang:error(error_type(Map),[Pred,Map]). - --spec fold(Fun,Init,Map) -> Acc when +filter_1(Pred, Iter) -> + case next(Iter) of + {K, V, NextIter} -> + case Pred(K,V) of + true -> + [{K,V} | filter_1(Pred, NextIter)]; + false -> + filter_1(Pred, NextIter) + end; + none -> + [] + end. + +-spec fold(Fun,Init,MapOrIter) -> Acc when Fun :: fun((K, V, AccIn) -> AccOut), Init :: term(), Acc :: term(), AccIn :: term(), AccOut :: term(), - Map :: map(), + MapOrIter :: map() | iterator(), K :: term(), V :: term(). fold(Fun,Init,Map) when is_function(Fun,3), is_map(Map) -> - lists:foldl(fun({K,V},A) -> Fun(K,V,A) end,Init,maps:to_list(Map)); + fold_1(Fun,Init,iterator(Map)); +fold(Fun,Init,Iterator) when is_function(Fun,3), ?IS_ITERATOR(Iterator) -> + fold_1(Fun,Init,Iterator); fold(Fun,Init,Map) -> erlang:error(error_type(Map),[Fun,Init,Map]). --spec map(Fun,Map1) -> Map2 when +fold_1(Fun, Acc, Iter) -> + case next(Iter) of + {K, V, NextIter} -> + fold_1(Fun, Fun(K,V,Acc), NextIter); + none -> + Acc + end. + +-spec map(Fun,MapOrIter) -> Map when Fun :: fun((K, V1) -> V2), - Map1 :: map(), - Map2 :: map(), + MapOrIter :: map() | iterator(), + Map :: map(), K :: term(), V1 :: term(), V2 :: term(). map(Fun,Map) when is_function(Fun, 2), is_map(Map) -> - maps:from_list([{K,Fun(K,V)}||{K,V}<-maps:to_list(Map)]); + maps:from_list(map_1(Fun, iterator(Map))); +map(Fun,Iterator) when is_function(Fun, 2), ?IS_ITERATOR(Iterator) -> + maps:from_list(map_1(Fun, Iterator)); map(Fun,Map) -> erlang:error(error_type(Map),[Fun,Map]). +map_1(Fun, Iter) -> + case next(Iter) of + {K, V, NextIter} -> + [{K, Fun(K, V)} | map_1(Fun, NextIter)]; + none -> + [] + end. -spec size(Map) -> non_neg_integer() when Map :: map(). @@ -242,6 +290,26 @@ size(Map) when is_map(Map) -> size(Val) -> erlang:error({badmap,Val},[Val]). +-spec iterator(Map) -> Iterator when + Map :: map(), + Iterator :: iterator(). + +iterator(M) when is_map(M) -> [0 | M]; +iterator(M) -> erlang:error({badmap, M}, [M]). + +-spec next(Iterator) -> {Key, Value, NextIterator} | 'none' when + Iterator :: iterator(), + Key :: term(), + Value :: term(), + NextIterator :: iterator(). +next({K, V, I}) -> + {K, V, I}; +next([Path | Map]) when is_integer(Path), is_map(Map) -> + erts_internal:map_next(Path, Map, iterator); +next(none) -> + none; +next(Iter) -> + erlang:error(badarg, [Iter]). -spec without(Ks,Map1) -> Map2 when Ks :: [K], @@ -250,11 +318,10 @@ size(Val) -> K :: term(). without(Ks,M) when is_list(Ks), is_map(M) -> - lists:foldl(fun(K, M1) -> ?MODULE:remove(K, M1) end, M, Ks); + lists:foldl(fun(K, M1) -> maps:remove(K, M1) end, M, Ks); without(Ks,M) -> erlang:error(error_type(M),[Ks,M]). - -spec with(Ks, Map1) -> Map2 when Ks :: [K], Map1 :: map(), @@ -263,17 +330,17 @@ without(Ks,M) -> with(Ks,Map1) when is_list(Ks), is_map(Map1) -> Fun = fun(K, List) -> - case ?MODULE:find(K, Map1) of - {ok, V} -> - [{K, V} | List]; - error -> - List - end - end, - ?MODULE:from_list(lists:foldl(Fun, [], Ks)); + case maps:find(K, Map1) of + {ok, V} -> + [{K, V} | List]; + error -> + List + end + end, + maps:from_list(lists:foldl(Fun, [], Ks)); with(Ks,M) -> erlang:error(error_type(M),[Ks,M]). -error_type(M) when is_map(M) -> badarg; +error_type(M) when is_map(M); ?IS_ITERATOR(M) -> badarg; error_type(V) -> {badmap, V}. diff --git a/lib/stdlib/src/uri_string.erl b/lib/stdlib/src/uri_string.erl index 22212da222..a84679c595 100644 --- a/lib/stdlib/src/uri_string.erl +++ b/lib/stdlib/src/uri_string.erl @@ -226,7 +226,8 @@ %%------------------------------------------------------------------------- %% External API %%------------------------------------------------------------------------- --export([normalize/1, parse/1, +-export([compose_query/1, compose_query/2, + dissect_query/1, normalize/1, parse/1, recompose/1, transcode/2]). -export_type([error/0, uri_map/0, uri_string/0]). @@ -381,6 +382,76 @@ transcode(URIString, Options) when is_list(URIString) -> end. +%%------------------------------------------------------------------------- +%% Functions for working with the query part of a URI as a list +%% of key/value pairs. +%% HTML5 - 4.10.22.6 URL-encoded form data +%%------------------------------------------------------------------------- + +%%------------------------------------------------------------------------- +%% Compose urlencoded query string from a list of unescaped key/value pairs. +%% (application/x-www-form-urlencoded encoding algorithm) +%%------------------------------------------------------------------------- +-spec compose_query(QueryList) -> QueryString when + QueryList :: [{uri_string(), uri_string()}], + QueryString :: uri_string() + | error(). +compose_query(List) -> + compose_query(List, [{encoding, utf8}]). + + +-spec compose_query(QueryList, Options) -> QueryString when + QueryList :: [{uri_string(), uri_string()}], + Options :: [{encoding, atom()}], + QueryString :: uri_string() + | error(). +compose_query([],_Options) -> + []; +compose_query(List, Options) -> + try compose_query(List, Options, false, <<>>) + catch + throw:{error, Atom, RestData} -> {error, Atom, RestData} + end. +%% +compose_query([{Key,Value}|Rest], Options, IsList, Acc) -> + Separator = get_separator(Rest), + K = form_urlencode(Key, Options), + V = form_urlencode(Value, Options), + IsListNew = IsList orelse is_list(Key) orelse is_list(Value), + compose_query(Rest, Options, IsListNew, <<Acc/binary,K/binary,"=",V/binary,Separator/binary>>); +compose_query([], _Options, IsList, Acc) -> + case IsList of + true -> convert_to_list(Acc, utf8); + false -> Acc + end. + + +%%------------------------------------------------------------------------- +%% Dissect a query string into a list of unescaped key/value pairs. +%% (application/x-www-form-urlencoded decoding algorithm) +%%------------------------------------------------------------------------- +-spec dissect_query(QueryString) -> QueryList when + QueryString :: uri_string(), + QueryList :: [{uri_string(), uri_string()}] + | error(). +dissect_query(<<>>) -> + []; +dissect_query([]) -> + []; +dissect_query(QueryString) when is_list(QueryString) -> + try + B = convert_to_binary(QueryString, utf8, utf8), + dissect_query_key(B, true, [], <<>>, <<>>) + catch + throw:{error, Atom, RestData} -> {error, Atom, RestData} + end; +dissect_query(QueryString) -> + try dissect_query_key(QueryString, false, [], <<>>, <<>>) + catch + throw:{error, Atom, RestData} -> {error, Atom, RestData} + end. + + %%%======================================================================== %%% Internal functions %%%======================================================================== @@ -585,6 +656,7 @@ maybe_add_path(Map) -> end. + -spec parse_scheme(binary(), uri_map()) -> {binary(), uri_map()}. parse_scheme(?STRING_REST($:, Rest), URI) -> {_, URI1} = parse_hier(Rest, URI), @@ -1673,6 +1745,161 @@ percent_encode_segment(Segment) -> %%------------------------------------------------------------------------- +%% Helper functions for compose_query +%%------------------------------------------------------------------------- + +%% Returns separator to be used between key-value pairs +get_separator(L) when length(L) =:= 0 -> + <<>>; +get_separator(_L) -> + <<"&">>. + + +%% HTML5 - 4.10.22.6 URL-encoded form data - encoding +form_urlencode(Cs, [{encoding, latin1}]) when is_list(Cs) -> + B = convert_to_binary(Cs, utf8, utf8), + html5_byte_encode(base10_encode(B)); +form_urlencode(Cs, [{encoding, latin1}]) when is_binary(Cs) -> + html5_byte_encode(base10_encode(Cs)); +form_urlencode(Cs, [{encoding, Encoding}]) + when is_list(Cs), Encoding =:= utf8; Encoding =:= unicode -> + B = convert_to_binary(Cs, utf8, Encoding), + html5_byte_encode(B); +form_urlencode(Cs, [{encoding, Encoding}]) + when is_binary(Cs), Encoding =:= utf8; Encoding =:= unicode -> + html5_byte_encode(Cs); +form_urlencode(Cs, [{encoding, Encoding}]) when is_list(Cs); is_binary(Cs) -> + throw({error,invalid_encoding, Encoding}); +form_urlencode(Cs, _) -> + throw({error,invalid_input, Cs}). + + +%% For each character in the entry's name and value that cannot be expressed using +%% the selected character encoding, replace the character by a string consisting of +%% a U+0026 AMPERSAND character (&), a "#" (U+0023) character, one or more ASCII +%% digits representing the Unicode code point of the character in base ten, and +%% finally a ";" (U+003B) character. +base10_encode(Cs) -> + base10_encode(Cs, <<>>). +%% +base10_encode(<<>>, Acc) -> + Acc; +base10_encode(<<H/utf8,T/binary>>, Acc) when H > 255 -> + Base10 = convert_to_binary(integer_to_list(H,10), utf8, utf8), + base10_encode(T, <<Acc/binary,"&#",Base10/binary,$;>>); +base10_encode(<<H/utf8,T/binary>>, Acc) -> + base10_encode(T, <<Acc/binary,H>>). + + +html5_byte_encode(B) -> + html5_byte_encode(B, <<>>). +%% +html5_byte_encode(<<>>, Acc) -> + Acc; +html5_byte_encode(<<$ ,T/binary>>, Acc) -> + html5_byte_encode(T, <<Acc/binary,$+>>); +html5_byte_encode(<<H,T/binary>>, Acc) -> + case is_url_char(H) of + true -> + html5_byte_encode(T, <<Acc/binary,H>>); + false -> + <<A:4,B:4>> = <<H>>, + html5_byte_encode(T, <<Acc/binary,$%,(?DEC2HEX(A)),(?DEC2HEX(B))>>) + end; +html5_byte_encode(H, _Acc) -> + throw({error,invalid_input, H}). + + +%% Return true if input char can appear in form-urlencoded string +%% Allowed chararacters: +%% 0x2A, 0x2D, 0x2E, 0x30 to 0x39, 0x41 to 0x5A, +%% 0x5F, 0x61 to 0x7A +is_url_char(C) + when C =:= 16#2A; C =:= 16#2D; + C =:= 16#2E; C =:= 16#5F; + 16#30 =< C, C =< 16#39; + 16#41 =< C, C =< 16#5A; + 16#61 =< C, C =< 16#7A -> true; +is_url_char(_) -> false. + + +%%------------------------------------------------------------------------- +%% Helper functions for dissect_query +%%------------------------------------------------------------------------- +dissect_query_key(<<$=,T/binary>>, IsList, Acc, Key, Value) -> + dissect_query_value(T, IsList, Acc, Key, Value); +dissect_query_key(<<"&#",T/binary>>, IsList, Acc, Key, Value) -> + dissect_query_key(T, IsList, Acc, <<Key/binary,"&#">>, Value); +dissect_query_key(<<$&,_T/binary>>, _IsList, _Acc, _Key, _Value) -> + throw({error, missing_value, "&"}); +dissect_query_key(<<H,T/binary>>, IsList, Acc, Key, Value) -> + dissect_query_key(T, IsList, Acc, <<Key/binary,H>>, Value); +dissect_query_key(B, _, _, _, _) -> + throw({error, missing_value, B}). + + +dissect_query_value(<<$&,T/binary>>, IsList, Acc, Key, Value) -> + K = form_urldecode(IsList, Key), + V = form_urldecode(IsList, Value), + dissect_query_key(T, IsList, [{K,V}|Acc], <<>>, <<>>); +dissect_query_value(<<H,T/binary>>, IsList, Acc, Key, Value) -> + dissect_query_value(T, IsList, Acc, Key, <<Value/binary,H>>); +dissect_query_value(<<>>, IsList, Acc, Key, Value) -> + K = form_urldecode(IsList, Key), + V = form_urldecode(IsList, Value), + lists:reverse([{K,V}|Acc]). + + +%% Form-urldecode input based on RFC 1866 [8.2.1] +form_urldecode(true, B) -> + Result = base10_decode(form_urldecode(B, <<>>)), + convert_to_list(Result, utf8); +form_urldecode(false, B) -> + base10_decode(form_urldecode(B, <<>>)); +form_urldecode(<<>>, Acc) -> + Acc; +form_urldecode(<<$+,T/binary>>, Acc) -> + form_urldecode(T, <<Acc/binary,$ >>); +form_urldecode(<<$%,C0,C1,T/binary>>, Acc) -> + case is_hex_digit(C0) andalso is_hex_digit(C1) of + true -> + V = ?HEX2DEC(C0)*16+?HEX2DEC(C1), + form_urldecode(T, <<Acc/binary, V>>); + false -> + L = convert_to_list(<<$%,C0,C1,T/binary>>, utf8), + throw({error, invalid_percent_encoding, L}) + end; +form_urldecode(<<H/utf8,T/binary>>, Acc) -> + form_urldecode(T, <<Acc/binary,H/utf8>>); +form_urldecode(<<H,_/binary>>, _Acc) -> + throw({error, invalid_character, [H]}). + +base10_decode(Cs) -> + base10_decode(Cs, <<>>). +% +base10_decode(<<>>, Acc) -> + Acc; +base10_decode(<<"&#",T/binary>>, Acc) -> + base10_decode_unicode(T, Acc); +base10_decode(<<H/utf8,T/binary>>, Acc) -> + base10_decode(T,<<Acc/binary,H/utf8>>); +base10_decode(<<H,_/binary>>, _) -> + throw({error, invalid_input, [H]}). + + +base10_decode_unicode(B, Acc) -> + base10_decode_unicode(B, 0, Acc). +%% +base10_decode_unicode(<<H/utf8,T/binary>>, Codepoint, Acc) when $0 =< H, H =< $9 -> + Res = Codepoint * 10 + (H - $0), + base10_decode_unicode(T, Res, Acc); +base10_decode_unicode(<<$;,T/binary>>, Codepoint, Acc) -> + base10_decode(T, <<Acc/binary,Codepoint/utf8>>); +base10_decode_unicode(<<H,_/binary>>, _, _) -> + throw({error, invalid_input, [H]}). + + +%%------------------------------------------------------------------------- %% Helper functions for normalize %%------------------------------------------------------------------------- diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl index f329a07b7a..07c8b60cbd 100644 --- a/lib/stdlib/test/ets_SUITE.erl +++ b/lib/stdlib/test/ets_SUITE.erl @@ -6369,7 +6369,7 @@ very_big_num(0, Result) -> Result. make_port() -> - open_port({spawn, "efile"}, [eof]). + hd(erlang:ports()). make_pid() -> spawn_link(fun sleeper/0). diff --git a/lib/stdlib/test/io_SUITE.erl b/lib/stdlib/test/io_SUITE.erl index e2c73371cd..13929bdbb6 100644 --- a/lib/stdlib/test/io_SUITE.erl +++ b/lib/stdlib/test/io_SUITE.erl @@ -2138,8 +2138,8 @@ otp_14175(_Config) -> "#{}" = p(#{}, 1), "#{...}" = p(#{a => 1}, 1), "#{#{} => a}" = p(#{#{} => a}, 2), - "#{a => 1,...}" = p(#{a => 1, b => 2}, 2), - "#{a => 1,b => 2}" = p(#{a => 1, b => 2}, -1), + mt("#{a => 1,...}", p(#{a => 1, b => 2}, 2)), + mt("#{a => 1,b => 2}", p(#{a => 1, b => 2}, -1)), M = #{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2, kccccccccccccccccccc => v3,kddddddddddddddddddd => v4, diff --git a/lib/stdlib/test/maps_SUITE.erl b/lib/stdlib/test/maps_SUITE.erl index 42e669a799..a75751b31d 100644 --- a/lib/stdlib/test/maps_SUITE.erl +++ b/lib/stdlib/test/maps_SUITE.erl @@ -30,6 +30,7 @@ -export([t_update_with_3/1, t_update_with_4/1, t_get_3/1, t_filter_2/1, t_fold_3/1,t_map_2/1,t_size_1/1, + t_iterator_1/1, t_with_2/1,t_without_2/1]). %%-define(badmap(V,F,Args), {'EXIT', {{badmap,V}, [{maps,F,Args,_}|_]}}). @@ -47,6 +48,7 @@ all() -> [t_update_with_3,t_update_with_4, t_get_3,t_filter_2, t_fold_3,t_map_2,t_size_1, + t_iterator_1, t_with_2,t_without_2]. t_update_with_3(Config) when is_list(Config) -> @@ -127,6 +129,8 @@ t_filter_2(Config) when is_list(Config) -> Pred2 = fun(K,V) -> is_list(K) andalso (V rem 2) =:= 0 end, #{a := 2,c := 4} = maps:filter(Pred1,M), #{"b" := 2,"c" := 4} = maps:filter(Pred2,M), + #{a := 2,c := 4} = maps:filter(Pred1,maps:iterator(M)), + #{"b" := 2,"c" := 4} = maps:filter(Pred2,maps:iterator(M)), %% error case ?badmap(a,filter,[_,a]) = (catch maps:filter(fun(_,_) -> ok end,id(a))), ?badarg(filter,[<<>>,#{}]) = (catch maps:filter(id(<<>>),#{})), @@ -139,6 +143,8 @@ t_fold_3(Config) when is_list(Config) -> Tot0 = lists:sum(Vs), Tot1 = maps:fold(fun({k,_},V,A) -> A + V end, 0, M0), true = Tot0 =:= Tot1, + Tot2 = maps:fold(fun({k,_},V,A) -> A + V end, 0, maps:iterator(M0)), + true = Tot0 =:= Tot2, %% error case ?badmap(a,fold,[_,0,a]) = (catch maps:fold(fun(_,_,_) -> ok end,0,id(a))), @@ -151,12 +157,48 @@ t_map_2(Config) when is_list(Config) -> #{ {k,1} := 1, {k,200} := 200} = M0, M1 = maps:map(fun({k,_},V) -> V + 42 end, M0), #{ {k,1} := 43, {k,200} := 242} = M1, + M2 = maps:map(fun({k,_},V) -> V + 42 end, maps:iterator(M0)), + #{ {k,1} := 43, {k,200} := 242} = M2, %% error case ?badmap(a,map,[_,a]) = (catch maps:map(fun(_,_) -> ok end, id(a))), ?badarg(map,[<<>>,#{}]) = (catch maps:map(id(<<>>),#{})), ok. +t_iterator_1(Config) when is_list(Config) -> + + %% Small map test + M0 = #{ a => 1, b => 2 }, + I0 = maps:iterator(M0), + {K1,V1,I1} = maps:next(I0), + {K2,V2,I2} = maps:next(I1), + none = maps:next(I2), + + KVList = lists:sort([{K1,V1},{K2,V2}]), + KVList = lists:sort(maps:to_list(M0)), + + %% Large map test + + Vs2 = lists:seq(1,200), + M2 = maps:from_list([{{k,I},I}||I<-Vs2]), + KVList2 = lists:sort(iter_kv(maps:iterator(M2))), + KVList2 = lists:sort(maps:to_list(M2)), + + %% Larger map test + + Vs3 = lists:seq(1,10000), + M3 = maps:from_list([{{k,I},I}||I<-Vs3]), + KVList3 = lists:sort(iter_kv(maps:iterator(M3))), + KVList3 = lists:sort(maps:to_list(M3)), + ok. + +iter_kv(I) -> + case maps:next(I) of + none -> + []; + {K,V,NI} -> + [{K,V} | iter_kv(NI)] + end. t_size_1(Config) when is_list(Config) -> 0 = maps:size(#{}), diff --git a/lib/stdlib/test/uri_string_SUITE.erl b/lib/stdlib/test/uri_string_SUITE.erl index c625da56c6..fef356355c 100644 --- a/lib/stdlib/test/uri_string_SUITE.erl +++ b/lib/stdlib/test/uri_string_SUITE.erl @@ -38,7 +38,10 @@ recompose_query/1, recompose_parse_query/1, recompose_path/1, recompose_parse_path/1, recompose_autogen/1, parse_recompose_autogen/1, - transcode_basic/1, transcode_options/1, transcode_mixed/1, transcode_negative/1 + transcode_basic/1, transcode_options/1, transcode_mixed/1, transcode_negative/1, + compose_query/1, compose_query_latin1/1, compose_query_negative/1, + dissect_query/1, dissect_query_negative/1, + interop_query_latin1/1, interop_query_utf8/1 ]). @@ -107,7 +110,14 @@ all() -> transcode_basic, transcode_options, transcode_mixed, - transcode_negative + transcode_negative, + compose_query, + compose_query_latin1, + compose_query_negative, + dissect_query, + dissect_query_negative, + interop_query_latin1, + interop_query_utf8 ]. groups() -> @@ -823,6 +833,65 @@ transcode_negative(_Config) -> {error,invalid_input,<<"ö">>} = uri_string:transcode("foo%F6bar", [{in_encoding, utf8},{out_encoding, utf8}]). +compose_query(_Config) -> + [] = uri_string:compose_query([]), + "foo=1&bar=2" = uri_string:compose_query([{<<"foo">>,"1"}, {"bar", "2"}]), + "foo=1&b%C3%A4r=2" = uri_string:compose_query([{"foo","1"}, {"bär", "2"}],[{encoding,utf8}]), + "foo=1&b%C3%A4r=2" = uri_string:compose_query([{"foo","1"}, {"bär", "2"}],[{encoding,unicode}]), + "foo=1&b%E4r=2" = uri_string:compose_query([{"foo","1"}, {"bär", "2"}],[{encoding,latin1}]), + "foo+bar=1&%E5%90%88=2" = uri_string:compose_query([{"foo bar","1"}, {"合", "2"}]), + "foo+bar=1&%26%2321512%3B=2" = + uri_string:compose_query([{"foo bar","1"}, {"合", "2"}],[{encoding,latin1}]), + "foo+bar=1&%C3%B6=2" = uri_string:compose_query([{<<"foo bar">>,<<"1">>}, {"ö", <<"2">>}]), + <<"foo+bar=1&%C3%B6=2">> = + uri_string:compose_query([{<<"foo bar">>,<<"1">>}, {<<"ö"/utf8>>, <<"2">>}]). + +compose_query_latin1(_Config) -> + Q = uri_string:compose_query([{"合foö bar","1"}, {"合", "合"}],[{encoding,latin1}]), + Q1 = uri_string:transcode(Q, [{in_encoding, latin1}]), + [{"合foö bar","1"}, {"合", "合"}] = uri_string:dissect_query(Q1), + Q2 = uri_string:compose_query([{<<"合foö bar"/utf8>>,<<"1">>}, {<<"合"/utf8>>, <<"合"/utf8>>}], + [{encoding,latin1}]), + Q3 = uri_string:transcode(Q2, [{in_encoding, latin1}]), + [{<<"合foö bar"/utf8>>,<<"1">>}, {<<"合"/utf8>>, <<"合"/utf8>>}] = + uri_string:dissect_query(Q3). + +compose_query_negative(_Config) -> + {error,invalid_input,4} = uri_string:compose_query([{"",4}]), + {error,invalid_input,5} = uri_string:compose_query([{5,""}]), + {error,invalid_encoding,utf16} = + uri_string:compose_query([{"foo bar","1"}, {<<"ö">>, "2"}],[{encoding,utf16}]). + +dissect_query(_Config) -> + [] = uri_string:dissect_query(""), + [{"foo","1"}, {"amp;bar", "2"}] = uri_string:dissect_query("foo=1&bar=2"), + [{"foo","1"}, {"bar", "2"}] = uri_string:dissect_query("foo=1&bar=2"), + [{"foo","1;bar=2"}] = uri_string:dissect_query("foo=1;bar=2"), + [{"foo","1"}, {"bar", "222"}] = uri_string:dissect_query([<<"foo=1&bar=2">>,"22"]), + [{"foo","ö"}, {"bar", "2"}] = uri_string:dissect_query("foo=%C3%B6&bar=2"), + [{<<"foo">>,<<"ö"/utf8>>}, {<<"bar">>, <<"2">>}] = + uri_string:dissect_query(<<"foo=%C3%B6&bar=2">>), + [{"foo bar","1"},{"ö","2"}] = + uri_string:dissect_query([<<"foo+bar=1&">>,<<"%C3%B6=2">>]), + [{"foo bar","1"},{[21512],"2"}] = + uri_string:dissect_query("foo+bar=1&%26%2321512%3B=2"), + [{<<"foo bar">>,<<"1">>},{<<"合"/utf8>>,<<"2">>}] = + uri_string:dissect_query(<<"foo+bar=1&%26%2321512%3B=2">>), + [{"föo bar","1"},{"ö","2"}] = + uri_string:dissect_query("föo+bar=1&%C3%B6=2"), + [{<<"föo bar"/utf8>>,<<"1">>},{<<"ö"/utf8>>,<<"2">>}] = + uri_string:dissect_query(<<"föo+bar=1&%C3%B6=2"/utf8>>). + +dissect_query_negative(_Config) -> + {error,missing_value,"&"} = + uri_string:dissect_query("foo1&bar=2"), + {error,invalid_percent_encoding,"%XX%B6"} = uri_string:dissect_query("foo=%XX%B6&bar=2"), + {error,invalid_input,[153]} = + uri_string:dissect_query("foo=%99%B6&bar=2"), + {error,invalid_character,"ö"} = uri_string:dissect_query(<<"föo+bar=1&%C3%B6=2">>), + {error,invalid_input,<<"ö">>} = + uri_string:dissect_query([<<"foo+bar=1&">>,<<"%C3%B6=2ö">>]). + normalize(_Config) -> "/a/g" = uri_string:normalize("/a/b/c/./../../g"), <<"mid/6">> = uri_string:normalize(<<"mid/content=5/../6">>), @@ -842,3 +911,16 @@ normalize(_Config) -> uri_string:normalize(<<"sftp://localhost:22">>), <<"tftp://localhost">> = uri_string:normalize(<<"tftp://localhost:69">>). + +interop_query_utf8(_Config) -> + Q = uri_string:compose_query([{"foo bar","1"}, {"合", "2"}]), + Uri = uri_string:recompose(#{path => "/", query => Q}), + #{query := Q1} = uri_string:parse(Uri), + [{"foo bar","1"}, {"合", "2"}] = uri_string:dissect_query(Q1). + +interop_query_latin1(_Config) -> + Q = uri_string:compose_query([{"foo bar","1"}, {"合", "2"}], [{encoding,latin1}]), + Uri = uri_string:recompose(#{path => "/", query => Q}), + Uri1 = uri_string:transcode(Uri, [{in_encoding, latin1}]), + #{query := Q1} = uri_string:parse(Uri1), + [{"foo bar","1"}, {"合", "2"}] = uri_string:dissect_query(Q1). diff --git a/lib/tools/doc/src/Makefile b/lib/tools/doc/src/Makefile index 7011f869cd..b554781382 100644 --- a/lib/tools/doc/src/Makefile +++ b/lib/tools/doc/src/Makefile @@ -58,8 +58,7 @@ XML_CHAPTER_FILES = \ lcnt_chapter.xml \ erlang_mode_chapter.xml \ xref_chapter.xml \ - notes.xml \ - notes_history.xml + notes.xml BOOK_FILES = book.xml |