diff options
Diffstat (limited to 'lib/ssl/src')
28 files changed, 3086 insertions, 3263 deletions
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile index fabf8a4e0d..7514ad2aa2 100644 --- a/lib/ssl/src/Makefile +++ b/lib/ssl/src/Makefile @@ -1,19 +1,19 @@ # # %CopyrightBegin% -# -# Copyright Ericsson AB 1999-2009. All Rights Reserved. -# +# +# Copyright Ericsson AB 1999-2010. All Rights Reserved. +# # 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. -# +# # %CopyrightEnd% # @@ -46,9 +46,6 @@ MODULES= \ ssl_server \ ssl_sup \ ssl_prim \ - ssl_pkix \ - ssl_pem \ - ssl_base64 \ inet_ssl_dist \ ssl_certificate\ ssl_certificate_db\ @@ -71,8 +68,6 @@ INTERNAL_HRL_FILES = \ ssl_alert.hrl ssl_cipher.hrl ssl_handshake.hrl ssl_internal.hrl \ ssl_record.hrl -PUBLIC_HRL_FILES = ssl_pkix.hrl - ERL_FILES= $(MODULES:%=%.erl) TARGET_FILES= $(MODULES:%=$(EBIN)/%.$(EMULATOR)) @@ -85,15 +80,12 @@ APP_TARGET= $(EBIN)/$(APP_FILE) APPUP_SRC= $(APPUP_FILE).src APPUP_TARGET= $(EBIN)/$(APPUP_FILE) -INCLUDE = ../include - # ---------------------------------------------------- # FLAGS # ---------------------------------------------------- EXTRA_ERLC_FLAGS = +warn_unused_vars ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/kernel/src \ -pz $(ERL_TOP)/lib/public_key/ebin \ - -I$(INCLUDE) \ $(EXTRA_ERLC_FLAGS) -DVSN=\"$(VSN)\" @@ -101,7 +93,7 @@ ERL_COMPILE_FLAGS += -I$(ERL_TOP)/lib/kernel/src \ # Targets # ---------------------------------------------------- -debug opt: $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET) $(PUBLIC_HRL_FILES) +debug opt: $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET) clean: rm -f $(TARGET_FILES) $(APP_TARGET) $(APPUP_TARGET) @@ -113,9 +105,6 @@ $(APP_TARGET): $(APP_SRC) ../vsn.mk $(APPUP_TARGET): $(APPUP_SRC) ../vsn.mk sed -e 's;%VSN%;$(VSN);' $< > $@ -$(PUBLIC_HRL_FILES): - cp -f $(PUBLIC_HRL_FILES) $(INCLUDE) - docs: # ---------------------------------------------------- @@ -126,8 +115,6 @@ include $(ERL_TOP)/make/otp_release_targets.mk release_spec: opt $(INSTALL_DIR) $(RELSYSDIR)/src $(INSTALL_DATA) $(ERL_FILES) $(INTERNAL_HRL_FILES) $(RELSYSDIR)/src - $(INSTALL_DIR) $(RELSYSDIR)/include - $(INSTALL_DATA) $(PUBLIC_HRL_FILES) $(RELSYSDIR)/include $(INSTALL_DIR) $(RELSYSDIR)/ebin $(INSTALL_DATA) $(TARGET_FILES) $(APP_TARGET) \ $(APPUP_TARGET) $(RELSYSDIR)/ebin diff --git a/lib/ssl/src/inet_ssl_dist.erl b/lib/ssl/src/inet_ssl_dist.erl index f62aefd35a..6c0fbc0618 100644 --- a/lib/ssl/src/inet_ssl_dist.erl +++ b/lib/ssl/src/inet_ssl_dist.erl @@ -1,8 +1,8 @@ -%%<copyright> -%% <year>2000-2008</year> -%% <holder>Ericsson AB, All Rights Reserved</holder> -%%</copyright> -%%<legalnotice> +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2000-2011. All Rights Reserved. +%% %% 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 @@ -14,8 +14,9 @@ %% the License for the specific language governing rights and limitations %% under the License. %% -%% The Initial Developer of the Original Code is Ericsson AB. -%%</legalnotice> +%% %CopyrightEnd% +%% + %% -module(inet_ssl_dist). @@ -135,6 +136,9 @@ accept_connection(AcceptPid, Socket, MyNode, Allowed, SetupTime) -> [self(), AcceptPid, Socket, MyNode, Allowed, SetupTime]). +%% Suppress dialyzer warning, we do not really care about old ssl code +%% as we intend to remove it. +-spec(do_accept(_,_,_,_,_,_) -> no_return()). do_accept(Kernel, AcceptPid, Socket, MyNode, Allowed, SetupTime) -> process_flag(priority, max), receive @@ -167,8 +171,8 @@ do_accept(Kernel, AcceptPid, Socket, MyNode, Allowed, SetupTime) -> ssl_prim:getll(S) end, f_address = fun get_remote_id/2, - mf_tick = {?MODULE, tick}, - mf_getstat = {?MODULE,getstat} + mf_tick = fun ?MODULE:tick/1, + mf_getstat = fun ?MODULE:getstat/1 }, dist_util:handshake_other_started(HSData); {false,IP} -> @@ -204,6 +208,9 @@ setup(Node, Type, MyNode, LongOrShortNames,SetupTime) -> LongOrShortNames, SetupTime]). +%% Suppress dialyzer warning, we do not really care about old ssl code +%% as we intend to remove it. +-spec(do_setup(_,_,_,_,_,_) -> no_return()). do_setup(Kernel, Node, Type, MyNode, LongOrShortNames,SetupTime) -> process_flag(priority, max), ?trace("~p~n",[{inet_ssl_dist,self(),setup,Node}]), @@ -258,8 +265,8 @@ do_setup(Kernel, Node, Type, MyNode, LongOrShortNames,SetupTime) -> protocol = ssl, family = inet} end, - mf_tick = {?MODULE, tick}, - mf_getstat = {?MODULE,getstat}, + mf_tick = fun ?MODULE:tick/1, + mf_getstat = fun ?MODULE:getstat/1, request_type = Type }, dist_util:handshake_we_started(HSData); diff --git a/lib/ssl/src/ssl.app.src b/lib/ssl/src/ssl.app.src index 2a7d451341..b9716786e6 100644 --- a/lib/ssl/src/ssl.app.src +++ b/lib/ssl/src/ssl.app.src @@ -7,10 +7,6 @@ ssl_server, ssl_broker, ssl_broker_sup, - ssl_base64, - ssl_pem, - ssl_pkix, - ssl_pkix_oid, ssl_prim, inet_ssl_dist, ssl_tls1, @@ -28,11 +24,10 @@ ssl_cipher, ssl_certificate_db, ssl_certificate, - ssl_alert, - 'OTP-PKIX' + ssl_alert ]}, {registered, [ssl_sup, ssl_server, ssl_broker_sup]}, - {applications, [kernel, stdlib]}, + {applications, [crypto, public_key, kernel, stdlib]}, {env, []}, {mod, {ssl_app, []}}]}. diff --git a/lib/ssl/src/ssl.appup.src b/lib/ssl/src/ssl.appup.src index e8ae6846aa..cf8867245b 100644 --- a/lib/ssl/src/ssl.appup.src +++ b/lib/ssl/src/ssl.appup.src @@ -1,26 +1,19 @@ %% -*- erlang -*- {"%VSN%", [ - {"3.10", [{restart_application, ssl}]}, - {"3.10.1", [{restart_application, ssl}]}, - {"3.10.2", [{restart_application, ssl}]}, - {"3.10.3", [{restart_application, ssl}]}, - {"3.10.4", [{restart_application, ssl}]}, - {"3.10.5", [{restart_application, ssl}]}, - {"3.10.6", [{restart_application, ssl}]}, - {"3.10.7", [{restart_application, ssl}]}, - {"3.10.8", [{restart_application, ssl}]}, - {"3.10.9", [{restart_application, ssl}]} + {"4.1.4", [{restart_application, ssl}]}, + {"4.1.3", [{restart_application, ssl}]}, + {"4.1.2", [{restart_application, ssl}]}, + {"4.1.1", [{restart_application, ssl}]}, + {"4.1", [{restart_application, ssl}]}, + {"4.0.1", [{restart_application, ssl}]} ], [ - {"3.10", [{restart_application, ssl}]}, - {"3.10.1", [{restart_application, ssl}]}, - {"3.10.2", [{restart_application, ssl}]}, - {"3.10.3", [{restart_application, ssl}]}, - {"3.10.4", [{restart_application, ssl}]}, - {"3.10.5", [{restart_application, ssl}]}, - {"3.10.6", [{restart_application, ssl}]}, - {"3.10.8", [{restart_application, ssl}]}, - {"3.10.9", [{restart_application, ssl}]} + {"4.1.4", [{restart_application, ssl}]}, + {"4.1.3", [{restart_application, ssl}]}, + {"4.1.2", [{restart_application, ssl}]}, + {"4.1.1", [{restart_application, ssl}]}, + {"4.1", [{restart_application, ssl}]}, + {"4.0.1", [{restart_application, ssl}]} ]}. diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl index 3cd4c7fdbd..a5e8e7e5c2 100644 --- a/lib/ssl/src/ssl.erl +++ b/lib/ssl/src/ssl.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2010. All Rights Reserved. +%% Copyright Ericsson AB 1999-2011. All Rights Reserved. %% %% 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 @@ -34,10 +34,14 @@ %% Should be deprecated as soon as old ssl is removed %%-deprecated({pid, 1, next_major_release}). +-deprecated({peercert, 2, next_major_release}). -include("ssl_int.hrl"). -include("ssl_internal.hrl"). -include("ssl_record.hrl"). +-include("ssl_cipher.hrl"). + +-include_lib("public_key/include/public_key.hrl"). -record(config, {ssl, %% SSL parameters inet_user, %% User set inet options @@ -45,24 +49,46 @@ inet_ssl, %% inet options for internal ssl socket cb %% Callback info }). +-type option() :: socketoption() | ssloption() | transportoption(). +-type socketoption() :: term(). %% See gen_tcp and inet, import spec later when there is one to import +-type ssloption() :: {verify, verify_type()} | + {verify_fun, {fun(), InitialUserState::term()}} | + {fail_if_no_peer_cert, boolean()} | {depth, integer()} | + {cert, Der::binary()} | {certfile, path()} | {key, Der::binary()} | + {keyfile, path()} | {password, string()} | {cacerts, [Der::binary()]} | + {cacertfile, path()} | {dh, Der::binary()} | {dhfile, path()} | + {ciphers, ciphers()} | {ssl_imp, ssl_imp()} | {reuse_sessions, boolean()} | + {reuse_session, fun()} | {hibernate_after, integer()|undefined}. + +-type verify_type() :: verify_none | verify_peer. +-type path() :: string(). +-type ciphers() :: [erl_cipher_suite()] | + string(). % (according to old API) +-type ssl_imp() :: new | old. + +-type transportoption() :: {CallbackModule::atom(), DataTag::atom(), ClosedTag::atom()}. + %%-------------------------------------------------------------------- -%% Function: start([, Type]) -> ok +-spec start() -> ok | {error, reason()}. +-spec start(permanent | transient | temporary) -> ok | {error, reason()}. %% -%% Type = permanent | transient | temporary -%% Vsns = [Vsn] -%% Vsn = ssl3 | tlsv1 | 'tlsv1.1' -%% -%% Description: Starts the ssl application. Default type +%% Description: Utility function that starts the ssl, +%% crypto and public_key applications. Default type %% is temporary. see application(3) %%-------------------------------------------------------------------- start() -> + application:start(crypto), + application:start(public_key), application:start(ssl). + start(Type) -> + application:start(crypto, Type), + application:start(public_key, Type), application:start(ssl, Type). %%-------------------------------------------------------------------- -%% Function: stop() -> ok +-spec stop() -> ok. %% %% Description: Stops the ssl application. %%-------------------------------------------------------------------- @@ -70,7 +96,13 @@ stop() -> application:stop(ssl). %%-------------------------------------------------------------------- -%% Function: connect(Address, Port, Options[, Timeout]) -> {ok, Socket} +-spec connect(host() | port(), [option()]) -> {ok, #sslsocket{}} | + {error, reason()}. +-spec connect(host() | port(), [option()] | port_num(), timeout() | list()) -> + {ok, #sslsocket{}} | {error, reason()}. +-spec connect(host() | port(), port_num(), list(), timeout()) -> + {ok, #sslsocket{}} | {error, reason()}. + %% %% Description: Connect to a ssl server. %%-------------------------------------------------------------------- @@ -96,13 +128,13 @@ connect(Socket, SslOptions0, Timeout) when is_port(Socket) -> {error, Reason} end; -connect(Address, Port, Options) -> - connect(Address, Port, Options, infinity). +connect(Host, Port, Options) -> + connect(Host, Port, Options, infinity). -connect(Address, Port, Options0, Timeout) -> - case proplists:get_value(ssl_imp, Options0, old) of +connect(Host, Port, Options0, Timeout) -> + case proplists:get_value(ssl_imp, Options0, new) of new -> - new_connect(Address, Port, Options0, Timeout); + new_connect(Host, Port, Options0, Timeout); old -> %% Allow the option reuseaddr to be present %% so that new and old ssl can be run by the same @@ -110,20 +142,21 @@ connect(Address, Port, Options0, Timeout) -> %% that hardcodes reuseaddr to true in its portprogram. Options1 = proplists:delete(reuseaddr, Options0), Options = proplists:delete(ssl_imp, Options1), - old_connect(Address, Port, Options, Timeout); + old_connect(Host, Port, Options, Timeout); Value -> {error, {eoptions, {ssl_imp, Value}}} end. %%-------------------------------------------------------------------- -%% Function: listen(Port, Options) -> {ok, ListenSock} | {error, Reason} +-spec listen(port_num(), [option()]) ->{ok, #sslsocket{}} | {error, reason()}. + %% %% Description: Creates a ssl listen socket. %%-------------------------------------------------------------------- listen(_Port, []) -> {error, enooptions}; listen(Port, Options0) -> - case proplists:get_value(ssl_imp, Options0, old) of + case proplists:get_value(ssl_imp, Options0, new) of new -> new_listen(Port, Options0); old -> @@ -139,7 +172,10 @@ listen(Port, Options0) -> end. %%-------------------------------------------------------------------- -%% Function: transport_accept(ListenSocket[, Timeout]) -> {ok, Socket}. +-spec transport_accept(#sslsocket{}) -> {ok, #sslsocket{}} | + {error, reason()}. +-spec transport_accept(#sslsocket{}, timeout()) -> {ok, #sslsocket{}} | + {error, reason()}. %% %% Description: Performs transport accept on a ssl listen socket %%-------------------------------------------------------------------- @@ -147,14 +183,14 @@ transport_accept(ListenSocket) -> transport_accept(ListenSocket, infinity). transport_accept(#sslsocket{pid = {ListenSocket, #config{cb=CbInfo, ssl=SslOpts}}, - fd = new_ssl} = SslSocket, Timeout) -> + fd = new_ssl}, Timeout) -> %% The setopt could have been invoked on the listen socket %% and options should be inherited. EmOptions = emulated_options(), {ok, InetValues} = inet:getopts(ListenSocket, EmOptions), ok = inet:setopts(ListenSocket, internal_inet_values()), - {CbModule,_,_} = CbInfo, + {CbModule,_,_, _} = CbInfo, case CbModule:accept(ListenSocket, Timeout) of {ok, Socket} -> ok = inet:setopts(ListenSocket, InetValues), @@ -163,8 +199,7 @@ transport_accept(#sslsocket{pid = {ListenSocket, #config{cb=CbInfo, ssl=SslOpts} {SslOpts, socket_options(InetValues)}, self(), CbInfo], case ssl_connection_sup:start_child(ConnArgs) of {ok, Pid} -> - CbModule:controlling_process(Socket, Pid), - {ok, SslSocket#sslsocket{pid = Pid}}; + ssl_connection:socket_control(Socket, Pid, CbModule); {error, Reason} -> {error, Reason} end; @@ -178,8 +213,10 @@ transport_accept(#sslsocket{} = ListenSocket, Timeout) -> ssl_broker:transport_accept(Pid, ListenSocket, Timeout). %%-------------------------------------------------------------------- -%% Function: ssl_accept(ListenSocket[, Timeout]) -> {ok, Socket} | -%% {error, Reason} +-spec ssl_accept(#sslsocket{}) -> ok | {error, reason()}. +-spec ssl_accept(#sslsocket{} | port(), timeout()| [option()]) -> + ok | {ok, #sslsocket{}} | {error, reason()}. +-spec ssl_accept(port(), [option()], timeout()) -> {ok, #sslsocket{}} | {error, reason()}. %% %% Description: Performs accept on a ssl listen socket. e.i. performs %% ssl handshake. @@ -187,22 +224,9 @@ transport_accept(#sslsocket{} = ListenSocket, Timeout) -> ssl_accept(ListenSocket) -> ssl_accept(ListenSocket, infinity). -ssl_accept(#sslsocket{pid = Pid, fd = new_ssl}, Timeout) -> - gen_fsm:send_event(Pid, socket_control), - try gen_fsm:sync_send_all_state_event(Pid, started, Timeout) of - connected -> - ok; - {error, _} = Error -> - Error - catch - exit:{noproc, _} -> - {error, closed}; - exit:{timeout, _} -> - {error, timeout}; - exit:{normal, _} -> - {error, closed} - end; - +ssl_accept(#sslsocket{fd = new_ssl} = Socket, Timeout) -> + ssl_connection:handshake(Socket, Timeout); + ssl_accept(ListenSocket, SslOptions) when is_port(ListenSocket) -> ssl_accept(ListenSocket, SslOptions, infinity); @@ -218,19 +242,19 @@ ssl_accept(Socket, SslOptions, Timeout) when is_port(Socket) -> try handle_options(SslOptions ++ InetValues, server) of {ok, #config{cb=CbInfo,ssl=SslOpts, emulated=EmOpts}} -> {ok, Port} = inet:port(Socket), - ssl_connection:accept(Port, Socket, - {SslOpts, EmOpts}, - self(), CbInfo, Timeout) + ssl_connection:ssl_accept(Port, Socket, + {SslOpts, EmOpts}, + self(), CbInfo, Timeout) catch Error = {error, _Reason} -> Error end. %%-------------------------------------------------------------------- -%% Function: close() -> ok +-spec close(#sslsocket{}) -> term(). %% %% Description: Close a ssl connection %%-------------------------------------------------------------------- -close(#sslsocket{pid = {ListenSocket, #config{cb={CbMod,_, _}}}, fd = new_ssl}) -> +close(#sslsocket{pid = {ListenSocket, #config{cb={CbMod,_, _, _}}}, fd = new_ssl}) -> CbMod:close(ListenSocket); close(#sslsocket{pid = Pid, fd = new_ssl}) -> ssl_connection:close(Pid); @@ -239,7 +263,7 @@ close(Socket = #sslsocket{}) -> ssl_broker:close(Socket). %%-------------------------------------------------------------------- -%% Function: send(Socket, Data) -> ok +-spec send(#sslsocket{}, iodata()) -> ok | {error, reason()}. %% %% Description: Sends data over the ssl connection %%-------------------------------------------------------------------- @@ -251,7 +275,8 @@ send(#sslsocket{} = Socket, Data) -> ssl_broker:send(Socket, Data). %%-------------------------------------------------------------------- -%% Function: recv(Socket, Length [,Timeout]) -> {ok, Data} | {error, reason} +-spec recv(#sslsocket{}, integer()) -> {ok, binary()| list()} | {error, reason()}. +-spec recv(#sslsocket{}, integer(), timeout()) -> {ok, binary()| list()} | {error, reason()}. %% %% Description: Receives data when active = false %%-------------------------------------------------------------------- @@ -265,8 +290,8 @@ recv(Socket = #sslsocket{}, Length, Timeout) -> ssl_broker:recv(Socket, Length, Timeout). %%-------------------------------------------------------------------- -%% Function: controlling_process(Socket, NewOwner) -> ok | {error, Reason} -%% +-spec controlling_process(#sslsocket{}, pid()) -> ok | {error, reason()}. +%% %% Description: Changes process that receives the messages when active = true %% or once. %%-------------------------------------------------------------------- @@ -279,11 +304,8 @@ controlling_process(Socket, NewOwner) when is_pid(NewOwner) -> ssl_broker:controlling_process(Socket, NewOwner). %%-------------------------------------------------------------------- -%% Function: connection_info(Socket) -> {ok, {Protocol, CipherSuite}} | -%% {error, Reason} -%% Protocol = sslv3 | tlsv1 | tlsv1.1 -%% CipherSuite = {KeyExchange, Chipher, Hash, Exportable} -%% +-spec connection_info(#sslsocket{}) -> {ok, {tls_atom_version(), erl_cipher_suite()}} | + {error, reason()}. %% %% Description: Returns ssl protocol and cipher used for the connection %%-------------------------------------------------------------------- @@ -295,9 +317,9 @@ connection_info(#sslsocket{} = Socket) -> ssl_broker:connection_info(Socket). %%-------------------------------------------------------------------- -%% Function: peercert(Socket[, Opts]) -> {ok, Cert} | {error, Reason} +-spec peercert(#sslsocket{}) ->{ok, der_cert()} | {error, reason()}. %% -%% Description: +%% Description: Returns the peercert. %%-------------------------------------------------------------------- peercert(Socket) -> peercert(Socket, []). @@ -307,14 +329,7 @@ peercert(#sslsocket{pid = Pid, fd = new_ssl}, Opts) -> {ok, undefined} -> {error, no_peercert}; {ok, BinCert} -> - PKOpts = [case Opt of ssl -> otp; pkix -> plain end || - Opt <- Opts, Opt =:= ssl orelse Opt =:= pkix], - case PKOpts of - [Opt] -> - public_key:pkix_decode_cert(BinCert, Opt); - [] -> - {ok, BinCert} - end; + decode_peercert(BinCert, Opts); {error, Reason} -> {error, Reason} end; @@ -323,15 +338,44 @@ peercert(#sslsocket{} = Socket, Opts) -> ensure_old_ssl_started(), case ssl_broker:peercert(Socket) of {ok, Bin} -> - ssl_pkix:decode_cert(Bin, Opts); + decode_peercert(Bin, Opts); {error, Reason} -> {error, Reason} end. + +decode_peercert(BinCert, Opts) -> + PKOpts = [case Opt of ssl -> otp; pkix -> plain end || + Opt <- Opts, Opt =:= ssl orelse Opt =:= pkix], + case PKOpts of + [Opt] -> + select_part(Opt, public_key:pkix_decode_cert(BinCert, Opt), Opts); + [] -> + {ok, BinCert} + end. + +select_part(otp, Cert, Opts) -> + case lists:member(subject, Opts) of + true -> + TBS = Cert#'OTPCertificate'.tbsCertificate, + {ok, TBS#'OTPTBSCertificate'.subject}; + false -> + {ok, Cert} + end; + +select_part(plain, Cert, Opts) -> + case lists:member(subject, Opts) of + true -> + TBS = Cert#'Certificate'.tbsCertificate, + {ok, TBS#'TBSCertificate'.subject}; + false -> + {ok, Cert} + end. + %%-------------------------------------------------------------------- -%% Function: peername(Socket) -> {ok, {Address, Port}} | {error, Reason} +-spec peername(#sslsocket{}) -> {ok, {tuple(), port_num()}} | {error, reason()}. %% -%% Description: +%% Description: same as inet:peername/1. %%-------------------------------------------------------------------- peername(#sslsocket{fd = new_ssl, pid = Pid}) -> ssl_connection:peername(Pid); @@ -341,9 +385,10 @@ peername(#sslsocket{} = Socket) -> ssl_broker:peername(Socket). %%-------------------------------------------------------------------- -%% Function: cipher_suites() -> -%% -%% Description: +-spec cipher_suites() -> [erl_cipher_suite()]. +-spec cipher_suites(erlang | openssl) -> [erl_cipher_suite()] | [string()]. + +%% Description: Returns all supported cipher suites. %%-------------------------------------------------------------------- cipher_suites() -> cipher_suites(erlang). @@ -357,9 +402,9 @@ cipher_suites(openssl) -> [ssl_cipher:openssl_suite_name(S) || S <- ssl_cipher:suites(Version)]. %%-------------------------------------------------------------------- -%% Function: getopts(Socket, OptTags) -> {ok, Options} | {error, Reason} +-spec getopts(#sslsocket{}, [atom()]) -> {ok, [{atom(), term()}]} | {error, reason()}. %% -%% Description: +%% Description: Gets options %%-------------------------------------------------------------------- getopts(#sslsocket{fd = new_ssl, pid = Pid}, OptTags) when is_pid(Pid) -> ssl_connection:get_opts(Pid, OptTags); @@ -370,9 +415,9 @@ getopts(#sslsocket{} = Socket, Options) -> ssl_broker:getopts(Socket, Options). %%-------------------------------------------------------------------- -%% Function: setopts(Socket, Options) -> ok | {error, Reason} +-spec setopts(#sslsocket{}, [proplists:property()]) -> ok | {error, reason()}. %% -%% Description: +%% Description: Sets options %%-------------------------------------------------------------------- setopts(#sslsocket{fd = new_ssl, pid = Pid}, Opts0) when is_pid(Pid) -> Opts = proplists:expand([{binary, [{mode, binary}]}, @@ -385,18 +430,18 @@ setopts(#sslsocket{} = Socket, Options) -> ssl_broker:setopts(Socket, Options). %%--------------------------------------------------------------- -%% Function: shutdown(Socket, How) -> ok | {error, Reason} -%% +-spec shutdown(#sslsocket{}, read | write | read_write) -> ok | {error, reason()}. +%% %% Description: Same as gen_tcp:shutdown/2 %%-------------------------------------------------------------------- -shutdown(#sslsocket{pid = {ListenSocket, #config{cb={CbMod,_, _}}}, fd = new_ssl}, How) -> +shutdown(#sslsocket{pid = {ListenSocket, #config{cb={CbMod,_, _, _}}}, fd = new_ssl}, How) -> CbMod:shutdown(ListenSocket, How); shutdown(#sslsocket{pid = Pid, fd = new_ssl}, How) -> ssl_connection:shutdown(Pid, How). %%-------------------------------------------------------------------- -%% Function: sockname(Socket) -> {ok, {Address, Port}} | {error, Reason} -%% +-spec sockname(#sslsocket{}) -> {ok, {tuple(), port_num()}} | {error, reason()}. +%% %% Description: Same as inet:sockname/1 %%-------------------------------------------------------------------- sockname(#sslsocket{fd = new_ssl, pid = {ListenSocket, _}}) -> @@ -410,9 +455,9 @@ sockname(#sslsocket{} = Socket) -> ssl_broker:sockname(Socket). %%--------------------------------------------------------------- -%% Function: seed(Data) -> ok | {error, edata} +-spec seed(term()) ->term(). %% -%% Description: +%% Description: Only used by old ssl. %%-------------------------------------------------------------------- %% TODO: crypto:seed ? seed(Data) -> @@ -420,20 +465,17 @@ seed(Data) -> ssl_server:seed(Data). %%--------------------------------------------------------------- -%% Function: session_id(Socket) -> {ok, PropList} | {error, Reason} +-spec session_info(#sslsocket{}) -> {ok, list()} | {error, reason()}. %% -%% Description: +%% Description: Returns list of session info currently [{session_id, session_id(), +%% {cipher_suite, cipher_suite()}] %%-------------------------------------------------------------------- session_info(#sslsocket{pid = Pid, fd = new_ssl}) -> ssl_connection:session_info(Pid). %%--------------------------------------------------------------- -%% Function: versions() -> [{SslAppVer, SupportedSslVer, AvailableSslVsn}] -%% -%% SslAppVer = string() - t.ex: ssl-4.0 -%% SupportedSslVer = [SslVer] -%% AvailableSslVsn = [SSLVer] -%% SSLVer = sslv3 | tlsv1 | 'tlsv1.1' +-spec versions() -> [{ssl_app, string()} | {supported, [tls_atom_version()]} | + {available, [tls_atom_version()]}]. %% %% Description: Returns a list of relevant versions. %%-------------------------------------------------------------------- @@ -444,9 +486,105 @@ versions() -> [{ssl_app, ?VSN}, {supported, SupportedVsns}, {available, AvailableVsns}]. +%%--------------------------------------------------------------- +-spec renegotiate(#sslsocket{}) -> ok | {error, reason()}. +%% +%% Description: Initiates a renegotiation. +%%-------------------------------------------------------------------- renegotiate(#sslsocket{pid = Pid, fd = new_ssl}) -> ssl_connection:renegotiation(Pid). +%%--------------------------------------------------------------- +-spec format_error({error, term()}) -> list(). +%% +%% Description: Creates error string. +%%-------------------------------------------------------------------- +format_error({error, Reason}) -> + format_error(Reason); +format_error(Reason) when is_list(Reason) -> + Reason; +format_error(closed) -> + "The connection is closed"; +format_error(ecacertfile) -> + "Own CA certificate file is invalid."; +format_error(ecertfile) -> + "Own certificate file is invalid."; +format_error(ekeyfile) -> + "Own private key file is invalid."; +format_error(esslaccept) -> + "Server SSL handshake procedure between client and server failed."; +format_error(esslconnect) -> + "Client SSL handshake procedure between client and server failed."; +format_error({eoptions, Options}) -> + lists:flatten(io_lib:format("Error in options list: ~p~n", [Options])); + +%%%%%%%%%%%% START OLD SSL format_error %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +format_error(ebadsocket) -> + "Connection not found (internal error)."; +format_error(ebadstate) -> + "Connection not in connect state (internal error)."; +format_error(ebrokertype) -> + "Wrong broker type (internal error)."; +format_error(echaintoolong) -> + "The chain of certificates provided by peer is too long."; +format_error(ecipher) -> + "Own list of specified ciphers is invalid."; +format_error(ekeymismatch) -> + "Own private key does not match own certificate."; +format_error(enoissuercert) -> + "Cannot find certificate of issuer of certificate provided by peer."; +format_error(enoservercert) -> + "Attempt to do accept without having set own certificate."; +format_error(enotlistener) -> + "Attempt to accept on a non-listening socket."; +format_error(enoproxysocket) -> + "No proxy socket found (internal error or max number of file " + "descriptors exceeded)."; +format_error(enooptions) -> + "List of options is empty."; +format_error(enotstarted) -> + "The SSL application has not been started."; +format_error(eoptions) -> + "Invalid list of options."; +format_error(epeercert) -> + "Certificate provided by peer is in error."; +format_error(epeercertexpired) -> + "Certificate provided by peer has expired."; +format_error(epeercertinvalid) -> + "Certificate provided by peer is invalid."; +format_error(eselfsignedcert) -> + "Certificate provided by peer is self signed."; +format_error(esslerrssl) -> + "SSL protocol failure. Typically because of a fatal alert from peer."; +format_error(ewantconnect) -> + "Protocol wants to connect, which is not supported in this " + "version of the SSL application."; +format_error(ex509lookup) -> + "Protocol wants X.509 lookup, which is not supported in this " + "version of the SSL application."; +format_error({badcall, _Call}) -> + "Call not recognized for current mode (active or passive) and state " + "of socket."; +format_error({badcast, _Cast}) -> + "Call not recognized for current mode (active or passive) and state " + "of socket."; + +format_error({badinfo, _Info}) -> + "Call not recognized for current mode (active or passive) and state " + "of socket."; + +%%%%%%%%%%%%%%%%%% END OLD SSL format_error %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +format_error(Error) -> + case (catch inet:format_error(Error)) of + "unkknown POSIX" ++ _ -> + no_format(Error); + {'EXIT', _} -> + no_format(Error); + Other -> + Other + end. + %%%-------------------------------------------------------------- %%% Internal functions %%%-------------------------------------------------------------------- @@ -463,7 +601,7 @@ do_new_connect(Address, Port, #config{cb=CbInfo, inet_user=UserOpts, ssl=SslOpts, emulated=EmOpts,inet_ssl=SocketOpts}, Timeout) -> - {CbModule, _, _} = CbInfo, + {CbModule, _, _, _} = CbInfo, try CbModule:connect(Address, Port, SocketOpts, Timeout) of {ok, Socket} -> ssl_connection:connect(Address, Port, Socket, {SslOpts,EmOpts}, @@ -473,8 +611,10 @@ do_new_connect(Address, Port, catch exit:{function_clause, _} -> {error, {eoptions, {cb_info, CbInfo}}}; + exit:badarg -> + {error, {eoptions, {inet_options, UserOpts}}}; exit:{badarg, _} -> - {error,{eoptions, {inet_options, UserOpts}}} + {error, {eoptions, {inet_options, UserOpts}}} end. old_connect(Address, Port, Options, Timeout) -> @@ -485,7 +625,7 @@ old_connect(Address, Port, Options, Timeout) -> new_listen(Port, Options0) -> try {ok, Config} = handle_options(Options0, server), - #config{cb={CbModule, _, _},inet_user=Options} = Config, + #config{cb={CbModule, _, _, _},inet_user=Options} = Config, case CbModule:listen(Port, Options) of {ok, ListenSocket} -> {ok, #sslsocket{pid = {ListenSocket, Config}, fd = new_ssl}}; @@ -502,75 +642,86 @@ old_listen(Port, Options) -> {ok, Pid} = ssl_broker:start_broker(listener), ssl_broker:listen(Pid, Port, Options). -handle_options(Opts0, Role) -> +handle_options(Opts0, _Role) -> Opts = proplists:expand([{binary, [{mode, binary}]}, {list, [{mode, list}]}], Opts0), ReuseSessionFun = fun(_, _, _, _) -> true end, - AcceptBadCa = fun({bad_cert,unknown_ca}, Acc) -> Acc; - (Other, Acc) -> [Other | Acc] - end, - - VerifyFun = - fun(ErrorList) -> - case lists:foldl(AcceptBadCa, [], ErrorList) of - [] -> true; - [_|_] -> false - end - end, + DefaultVerifyNoneFun = + {fun(_,{bad_cert, _}, UserState) -> + {valid, UserState}; + (_,{extension, _}, UserState) -> + {unknown, UserState}; + (_, valid, UserState) -> + {valid, UserState}; + (_, valid_peer, UserState) -> + {valid, UserState} + end, []}, - UserFailIfNoPeerCert = validate_option(fail_if_no_peer_cert, - proplists:get_value(fail_if_no_peer_cert, Opts, false)), + VerifyNoneFun = handle_option(verify_fun, Opts, DefaultVerifyNoneFun), - {Verify, FailIfNoPeerCert, CaCertDefault} = + UserFailIfNoPeerCert = handle_option(fail_if_no_peer_cert, Opts, false), + UserVerifyFun = handle_option(verify_fun, Opts, undefined), + CaCerts = handle_option(cacerts, Opts, undefined), + + {Verify, FailIfNoPeerCert, CaCertDefault, VerifyFun} = %% Handle 0, 1, 2 for backwards compatibility case proplists:get_value(verify, Opts, verify_none) of 0 -> - {verify_none, false, ca_cert_default(verify_none, Role)}; + {verify_none, false, + ca_cert_default(verify_none, VerifyNoneFun, CaCerts), VerifyNoneFun}; 1 -> - {verify_peer, false, ca_cert_default(verify_peer, Role)}; + {verify_peer, false, + ca_cert_default(verify_peer, UserVerifyFun, CaCerts), UserVerifyFun}; 2 -> - {verify_peer, true, ca_cert_default(verify_peer, Role)}; + {verify_peer, true, + ca_cert_default(verify_peer, UserVerifyFun, CaCerts), UserVerifyFun}; verify_none -> - {verify_none, false, ca_cert_default(verify_none, Role)}; + {verify_none, false, + ca_cert_default(verify_none, VerifyNoneFun, CaCerts), VerifyNoneFun}; verify_peer -> - {verify_peer, UserFailIfNoPeerCert, ca_cert_default(verify_peer, Role)}; + {verify_peer, UserFailIfNoPeerCert, + ca_cert_default(verify_peer, UserVerifyFun, CaCerts), UserVerifyFun}; Value -> throw({error, {eoptions, {verify, Value}}}) - end, + end, CertFile = handle_option(certfile, Opts, ""), SSLOptions = #ssl_options{ versions = handle_option(versions, Opts, []), verify = validate_option(verify, Verify), - verify_fun = handle_option(verify_fun, Opts, VerifyFun), + verify_fun = VerifyFun, fail_if_no_peer_cert = FailIfNoPeerCert, verify_client_once = handle_option(verify_client_once, Opts, false), - validate_extensions_fun = handle_option(validate_extensions_fun, Opts, undefined), depth = handle_option(depth, Opts, 1), + cert = handle_option(cert, Opts, undefined), certfile = CertFile, - keyfile = handle_option(keyfile, Opts, CertFile), key = handle_option(key, Opts, undefined), + keyfile = handle_option(keyfile, Opts, CertFile), password = handle_option(password, Opts, ""), + cacerts = CaCerts, cacertfile = handle_option(cacertfile, Opts, CaCertDefault), + dh = handle_option(dh, Opts, undefined), dhfile = handle_option(dhfile, Opts, undefined), ciphers = handle_option(ciphers, Opts, []), %% Server side option reuse_session = handle_option(reuse_session, Opts, ReuseSessionFun), reuse_sessions = handle_option(reuse_sessions, Opts, true), + secure_renegotiate = handle_option(secure_renegotiate, Opts, false), renegotiate_at = handle_option(renegotiate_at, Opts, ?DEFAULT_RENEGOTIATE_AT), - debug = handle_option(debug, Opts, []) + debug = handle_option(debug, Opts, []), + hibernate_after = handle_option(hibernate_after, Opts, undefined) }, - CbInfo = proplists:get_value(cb_info, Opts, {gen_tcp, tcp, tcp_closed}), - SslOptions = [versions, verify, verify_fun, validate_extensions_fun, + CbInfo = proplists:get_value(cb_info, Opts, {gen_tcp, tcp, tcp_closed, tcp_error}), + SslOptions = [versions, verify, verify_fun, fail_if_no_peer_cert, verify_client_once, - depth, certfile, keyfile, - key, password, cacertfile, dhfile, ciphers, + depth, cert, certfile, key, keyfile, + password, cacerts, cacertfile, dh, dhfile, ciphers, debug, reuse_session, reuse_sessions, ssl_imp, - cb_info, renegotiate_at], + cb_info, renegotiate_at, secure_renegotiate, hibernate_after], SockOpts = lists:foldl(fun(Key, PropList) -> proplists:delete(Key, PropList) @@ -592,7 +743,25 @@ validate_option(ssl_imp, Value) when Value == new; Value == old -> validate_option(verify, Value) when Value == verify_none; Value == verify_peer -> Value; -validate_option(verify_fun, Value) when is_function(Value) -> +validate_option(verify_fun, undefined) -> + undefined; +%% Backwards compatibility +validate_option(verify_fun, Fun) when is_function(Fun) -> + {fun(_,{bad_cert, _} = Reason, OldFun) -> + case OldFun([Reason]) of + true -> + {valid, OldFun}; + false -> + {fail, Reason} + end; + (_,{extension, _}, UserState) -> + {unknown, UserState}; + (_, valid, UserState) -> + {valid, UserState}; + (_, valid_peer, UserState) -> + {valid, UserState} + end, Fun}; +validate_option(verify_fun, {Fun, _} = Value) when is_function(Fun) -> Value; validate_option(fail_if_no_peer_cert, Value) when Value == true; Value == false -> @@ -600,29 +769,38 @@ validate_option(fail_if_no_peer_cert, Value) validate_option(verify_client_once, Value) when Value == true; Value == false -> Value; - -validate_option(validate_extensions_fun, Value) when Value == undefined; is_function(Value) -> - Value; validate_option(depth, Value) when is_integer(Value), Value >= 0, Value =< 255-> Value; -validate_option(certfile, Value) when is_list(Value) -> +validate_option(cert, Value) when Value == undefined; + is_binary(Value) -> Value; -validate_option(keyfile, Value) when is_list(Value) -> +validate_option(certfile, Value) when Value == undefined; is_list(Value) -> Value; -validate_option(key, Value) when Value == undefined; - is_tuple(Value) -> - %% element(1, Value)=='RSAPrivateKey' -> + +validate_option(key, undefined) -> + undefined; +validate_option(key, {KeyType, Value}) when is_binary(Value), + KeyType == rsa; + KeyType == dsa -> + {KeyType, Value}; +validate_option(keyfile, Value) when is_list(Value) -> Value; validate_option(password, Value) when is_list(Value) -> Value; +validate_option(cacerts, Value) when Value == undefined; + is_list(Value) -> + Value; %% certfile must be present in some cases otherwhise it can be set %% to the empty string. validate_option(cacertfile, undefined) -> ""; validate_option(cacertfile, Value) when is_list(Value), Value =/= "" -> Value; +validate_option(dh, Value) when Value == undefined; + is_binary(Value) -> + Value; validate_option(dhfile, undefined = Value) -> Value; validate_option(dhfile, Value) when is_list(Value), Value =/= "" -> @@ -641,11 +819,19 @@ validate_option(reuse_session, Value) when is_function(Value) -> validate_option(reuse_sessions, Value) when Value == true; Value == false -> Value; + +validate_option(secure_renegotiate, Value) when Value == true; + Value == false -> + Value; validate_option(renegotiate_at, Value) when is_integer(Value) -> - min(Value, ?DEFAULT_RENEGOTIATE_AT); + erlang:min(Value, ?DEFAULT_RENEGOTIATE_AT); validate_option(debug, Value) when is_list(Value); Value == true -> Value; +validate_option(hibernate_after, undefined) -> + undefined; +validate_option(hibernate_after, Value) when is_integer(Value), Value >= 0 -> + Value; validate_option(Opt, Value) -> throw({error, {eoptions, {Opt, Value}}}). @@ -676,14 +862,16 @@ validate_inet_option(active, Value) validate_inet_option(_, _) -> ok. -ca_cert_default(verify_none, _) -> +%% The option cacerts overrides cacertsfile +ca_cert_default(_,_, [_|_]) -> + undefined; +ca_cert_default(verify_none, _, _) -> undefined; -%% Client may leave verification up to the user -ca_cert_default(verify_peer, client) -> +ca_cert_default(verify_peer, {Fun,_}, _) when is_function(Fun) -> undefined; -%% Server that wants to verify_peer must have +%% Server that wants to verify_peer and has no verify_fun must have %% some trusted certs. -ca_cert_default(verify_peer, server) -> +ca_cert_default(verify_peer, undefined, _) -> "". emulated_options() -> @@ -727,11 +915,14 @@ emulated_options([], Inet,Emulated) -> cipher_suites(Version, []) -> ssl_cipher:suites(Version); -cipher_suites(Version, [{_,_,_,_}| _] = Ciphers0) -> +cipher_suites(Version, [{_,_,_,_}| _] = Ciphers0) -> %% Backwards compatibility + Ciphers = [{KeyExchange, Cipher, Hash} || {KeyExchange, Cipher, Hash, _} <- Ciphers0], + cipher_suites(Version, Ciphers); +cipher_suites(Version, [{_,_,_}| _] = Ciphers0) -> Ciphers = [ssl_cipher:suite(C) || C <- Ciphers0], cipher_suites(Version, Ciphers); cipher_suites(Version, [Cipher0 | _] = Ciphers0) when is_binary(Cipher0) -> - Supported = ssl_cipher:suites(Version), + Supported = ssl_cipher:suites(Version) ++ ssl_cipher:anonymous_suites(), case [Cipher || Cipher <- Ciphers0, lists:member(Cipher, Supported)] of [] -> Supported; @@ -747,85 +938,8 @@ cipher_suites(Version, Ciphers0) -> Ciphers = [ssl_cipher:openssl_suite(C) || C <- string:tokens(Ciphers0, ":")], cipher_suites(Version, Ciphers). -format_error({error, Reason}) -> - format_error(Reason); -format_error(closed) -> - "Connection closed for the operation in question."; -format_error(ebadsocket) -> - "Connection not found (internal error)."; -format_error(ebadstate) -> - "Connection not in connect state (internal error)."; -format_error(ebrokertype) -> - "Wrong broker type (internal error)."; -format_error(ecacertfile) -> - "Own CA certificate file is invalid."; -format_error(ecertfile) -> - "Own certificate file is invalid."; -format_error(echaintoolong) -> - "The chain of certificates provided by peer is too long."; -format_error(ecipher) -> - "Own list of specified ciphers is invalid."; -format_error(ekeyfile) -> - "Own private key file is invalid."; -format_error(ekeymismatch) -> - "Own private key does not match own certificate."; -format_error(enoissuercert) -> - "Cannot find certificate of issuer of certificate provided by peer."; -format_error(enoservercert) -> - "Attempt to do accept without having set own certificate."; -format_error(enotlistener) -> - "Attempt to accept on a non-listening socket."; -format_error(enoproxysocket) -> - "No proxy socket found (internal error or max number of file " - "descriptors exceeded)."; -format_error(enooptions) -> - "List of options is empty."; -format_error(enotstarted) -> - "The SSL application has not been started."; -format_error(eoptions) -> - "Invalid list of options."; -format_error(epeercert) -> - "Certificate provided by peer is in error."; -format_error(epeercertexpired) -> - "Certificate provided by peer has expired."; -format_error(epeercertinvalid) -> - "Certificate provided by peer is invalid."; -format_error(eselfsignedcert) -> - "Certificate provided by peer is self signed."; -format_error(esslaccept) -> - "Server SSL handshake procedure between client and server failed."; -format_error(esslconnect) -> - "Client SSL handshake procedure between client and server failed."; -format_error(esslerrssl) -> - "SSL protocol failure. Typically because of a fatal alert from peer."; -format_error(ewantconnect) -> - "Protocol wants to connect, which is not supported in this " - "version of the SSL application."; -format_error(ex509lookup) -> - "Protocol wants X.509 lookup, which is not supported in this " - "version of the SSL application."; -format_error({badcall, _Call}) -> - "Call not recognized for current mode (active or passive) and state " - "of socket."; -format_error({badcast, _Cast}) -> - "Call not recognized for current mode (active or passive) and state " - "of socket."; - -format_error({badinfo, _Info}) -> - "Call not recognized for current mode (active or passive) and state " - "of socket."; -format_error(Error) -> - case (catch inet:format_error(Error)) of - "unkknown POSIX" ++ _ -> - no_format(Error); - {'EXIT', _} -> - no_format(Error); - Other -> - Other - end. - no_format(Error) -> - io_lib:format("No format string for error: \"~p\" available.", [Error]). + lists:flatten(io_lib:format("No format string for error: \"~p\" available.", [Error])). %% Start old ssl port program if needed. ensure_old_ssl_started() -> @@ -860,10 +974,6 @@ version() -> end, {ok, {SSLVsn, CompVsn, LibVsn}}. -min(N,M) when N < M -> - N; -min(_, M) -> - M. %% Only used to remove exit messages from old ssl %% First is a nonsense clause to provide some diff --git a/lib/ssl/src/ssl_alert.erl b/lib/ssl/src/ssl_alert.erl index d3f9c833f1..eb1228afa4 100644 --- a/lib/ssl/src/ssl_alert.erl +++ b/lib/ssl/src/ssl_alert.erl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2007-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% %% 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. -%% +%% %% %CopyrightEnd% %% @@ -32,76 +32,87 @@ -export([alert_txt/1, reason_code/2]). +%%==================================================================== +%% Internal application API +%%==================================================================== +%%-------------------------------------------------------------------- +-spec reason_code(#alert{}, client | server) -> closed | esslconnect | + esslaccept | string(). +%% +%% Description: Returns the error reason that will be returned to the +%% user. +%%-------------------------------------------------------------------- + reason_code(#alert{description = ?CLOSE_NOTIFY}, _) -> closed; reason_code(#alert{description = ?HANDSHAKE_FAILURE}, client) -> esslconnect; reason_code(#alert{description = ?HANDSHAKE_FAILURE}, server) -> esslaccept; -reason_code(#alert{description = ?CERTIFICATE_EXPIRED}, _) -> - epeercertexpired; -reason_code(#alert{level = ?FATAL}, _) -> - esslerrssl; reason_code(#alert{description = Description}, _) -> description_txt(Description). +%%-------------------------------------------------------------------- +-spec alert_txt(#alert{}) -> string(). +%% +%% Description: Returns the error string for given alert. +%%-------------------------------------------------------------------- + alert_txt(#alert{level = Level, description = Description, where = {Mod,Line}}) -> Mod ++ ":" ++ integer_to_list(Line) ++ ":" ++ level_txt(Level) ++" "++ description_txt(Description). +%%-------------------------------------------------------------------- +%%% Internal functions +%%-------------------------------------------------------------------- level_txt(?WARNING) -> "Warning:"; level_txt(?FATAL) -> "Fatal error:". description_txt(?CLOSE_NOTIFY) -> - "close_notify"; + "close notify"; description_txt(?UNEXPECTED_MESSAGE) -> - "unexpected_message"; + "unexpected message"; description_txt(?BAD_RECORD_MAC) -> - "bad_record_mac"; + "bad record mac"; description_txt(?DECRYPTION_FAILED) -> - "decryption_failed"; + "decryption failed"; description_txt(?RECORD_OVERFLOW) -> - "record_overflow"; + "record overflow"; description_txt(?DECOMPRESSION_FAILURE) -> - "decompression_failure"; + "decompression failure"; description_txt(?HANDSHAKE_FAILURE) -> - "handshake_failure"; + "handshake failure"; description_txt(?BAD_CERTIFICATE) -> - "bad_certificate"; + "bad certificate"; description_txt(?UNSUPPORTED_CERTIFICATE) -> - "unsupported_certificate"; + "unsupported certificate"; description_txt(?CERTIFICATE_REVOKED) -> - "certificate_revoked"; + "certificate revoked"; description_txt(?CERTIFICATE_EXPIRED) -> - "certificate_expired"; + "certificate expired"; description_txt(?CERTIFICATE_UNKNOWN) -> - "certificate_unknown"; + "certificate unknown"; description_txt(?ILLEGAL_PARAMETER) -> - "illegal_parameter"; + "illegal parameter"; description_txt(?UNKNOWN_CA) -> - "unknown_ca"; + "unknown ca"; description_txt(?ACCESS_DENIED) -> - "access_denied"; + "access denied"; description_txt(?DECODE_ERROR) -> - "decode_error"; + "decode error"; description_txt(?DECRYPT_ERROR) -> - "decrypt_error"; + "decrypt error"; description_txt(?EXPORT_RESTRICTION) -> - "export_restriction"; + "export restriction"; description_txt(?PROTOCOL_VERSION) -> - "protocol_version"; + "protocol version"; description_txt(?INSUFFICIENT_SECURITY) -> - "insufficient_security"; + "insufficient security"; description_txt(?INTERNAL_ERROR) -> - "internal_error"; + "internal error"; description_txt(?USER_CANCELED) -> - "user_canceled"; + "user canceled"; description_txt(?NO_RENEGOTIATION) -> - "no_renegotiation". - - - - - + "no renegotiation". diff --git a/lib/ssl/src/ssl_app.erl b/lib/ssl/src/ssl_app.erl index 6ca1c42631..c9f81726b9 100644 --- a/lib/ssl/src/ssl_app.erl +++ b/lib/ssl/src/ssl_app.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2009. All Rights Reserved. +%% Copyright Ericsson AB 1998-2011. All Rights Reserved. %% %% 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 @@ -27,14 +27,16 @@ -export([start/2, stop/1]). -%% start/2(Type, StartArgs) -> {ok, Pid} | {ok, Pid, State} | -%% {error, Reason} -%% +%%-------------------------------------------------------------------- +-spec start(normal | {takeover, node()} | {failover, node()}, list()) -> + ignore | {ok, pid()} | {error, term()}. +%%-------------------------------------------------------------------- start(_Type, _StartArgs) -> ssl_sup:start_link(). -%% stop(State) -> void() -%% +%-------------------------------------------------------------------- +-spec stop(term())-> ok. +%%-------------------------------------------------------------------- stop(_State) -> ok. diff --git a/lib/ssl/src/ssl_base64.erl b/lib/ssl/src/ssl_base64.erl deleted file mode 100644 index cfc42407e8..0000000000 --- a/lib/ssl/src/ssl_base64.erl +++ /dev/null @@ -1,129 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2003-2009. All Rights Reserved. -%% -%% 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. -%% -%% %CopyrightEnd% -%% - -%% - -%%% Purpose : Base 64 encoding and decoding. - --module(ssl_base64). - --export([encode/1, encode_split/1, decode/1, join_decode/1]). - --define(st(X,A), ((X-A+256) div 256)). --define(CHARS, 64). - -%% A PEM encoding consists of characters A-Z, a-z, 0-9, +, / and -%% =. Each character encodes a 6 bits value from 0 to 63 (A = 0, / = -%% 63); = is a padding character. -%% - -%% -%% encode(Bytes|Binary) -> Chars -%% -%% Take 3 bytes a time (3 x 8 = 24 bits), and make 4 characters out of -%% them (4 x 6 = 24 bits). -%% -encode(Bs) when is_list(Bs) -> - encode(list_to_binary(Bs)); -encode(<<B:3/binary, Bs/binary>>) -> - <<C1:6, C2:6, C3:6, C4:6>> = B, - [enc(C1), enc(C2), enc(C3), enc(C4)| encode(Bs)]; -encode(<<B:2/binary>>) -> - <<C1:6, C2:6, C3:6, _:6>> = <<B/binary, 0>>, - [enc(C1), enc(C2), enc(C3), $=]; -encode(<<B:1/binary>>) -> - <<C1:6, C2:6, _:12>> = <<B/binary, 0, 0>>, - [enc(C1), enc(C2), $=, $=]; -encode(<<>>) -> - []. - -%% -%% encode_split(Bytes|Binary) -> Lines -%% -%% The encoding is divided into lines separated by <NL>, and each line -%% is precisely 64 characters long (excluding the <NL> characters, -%% except the last line which 64 characters long or shorter. <NL> may -%% follow the last line. -%% -encode_split(Bs) -> - split(encode(Bs)). - -%% -%% decode(Chars) -> Binary -%% -decode(Cs) -> - list_to_binary(decode1(Cs)). - -decode1([C1, C2, $=, $=]) -> - <<B1, _:16>> = <<(dec(C1)):6, (dec(C2)):6, 0:12>>, - [B1]; -decode1([C1, C2, C3, $=]) -> - <<B1, B2, _:8>> = <<(dec(C1)):6, (dec(C2)):6, (dec(C3)):6, (dec(0)):6>>, - [B1, B2]; -decode1([C1, C2, C3, C4| Cs]) -> - Bin = <<(dec(C1)):6, (dec(C2)):6, (dec(C3)):6, (dec(C4)):6>>, - [Bin| decode1(Cs)]; -decode1([]) -> - []. - -%% -%% join_decode(Lines) -> Binary -%% -%% Remove <NL> before decoding. -%% -join_decode(Cs) -> - decode(join(Cs)). - -%% -%% Locals -%% - -%% enc/1 and dec/1 -%% -%% Mapping: 0-25 -> A-Z, 26-51 -> a-z, 52-61 -> 0-9, 62 -> +, 63 -> / -%% -enc(C) -> - 65 + C + 6*?st(C,26) - 75*?st(C,52) -15*?st(C,62) + 3*?st(C,63). - -dec(C) -> - 62*?st(C,43) + ?st(C,47) + (C-59)*?st(C,48) - 69*?st(C,65) - 6*?st(C,97). - -%% split encoding into lines -%% -split(Cs) -> - split(Cs, ?CHARS). - -split([], _N) -> - [$\n]; -split(Cs, 0) -> - [$\n| split(Cs, ?CHARS)]; -split([C| Cs], N) -> - [C| split(Cs, N-1)]. - -%% join lines of encodings -%% -join([$\r, $\n| Cs]) -> - join(Cs); -join([$\n| Cs]) -> - join(Cs); -join([C| Cs]) -> - [C| join(Cs)]; -join([]) -> - []. - diff --git a/lib/ssl/src/ssl_certificate.erl b/lib/ssl/src/ssl_certificate.erl index 686e90a70c..8c0c2bfa5d 100644 --- a/lib/ssl/src/ssl_certificate.erl +++ b/lib/ssl/src/ssl_certificate.erl @@ -28,91 +28,155 @@ -include("ssl_handshake.hrl"). -include("ssl_alert.hrl"). -include("ssl_internal.hrl"). --include("ssl_debug.hrl"). -include_lib("public_key/include/public_key.hrl"). --export([trusted_cert_and_path/3, +-export([trusted_cert_and_path/2, certificate_chain/2, file_to_certificats/1, - validate_extensions/6]). + validate_extension/3, + is_valid_extkey_usage/2, + is_valid_key_usage/2, + select_extension/2, + extensions_list/1, + signature_type/1 + ]). %%==================================================================== %% Internal application API %%==================================================================== -trusted_cert_and_path(CertChain, CertDbRef, Verify) -> - [Cert | RestPath] = lists:reverse(CertChain), - {ok, OtpCert} = public_key:pkix_decode_cert(Cert, otp), - IssuerAnPath = +%%-------------------------------------------------------------------- +-spec trusted_cert_and_path([der_cert()], certdb_ref()) -> + {der_cert() | unknown_ca, [der_cert()]}. +%% +%% Description: Extracts the root cert (if not presents tries to +%% look it up, if not found {bad_cert, unknown_ca} will be added verification +%% errors. Returns {RootCert, Path, VerifyErrors} +%%-------------------------------------------------------------------- +trusted_cert_and_path(CertChain, CertDbRef) -> + Path = [Cert | _] = lists:reverse(CertChain), + OtpCert = public_key:pkix_decode_cert(Cert, otp), + SignedAndIssuerID = case public_key:pkix_is_self_signed(OtpCert) of true -> {ok, IssuerId} = public_key:pkix_issuer_id(OtpCert, self), - {IssuerId, RestPath}; - false -> + {self, IssuerId}; + false -> case public_key:pkix_issuer_id(OtpCert, other) of {ok, IssuerId} -> - {IssuerId, [Cert | RestPath]}; + {other, IssuerId}; {error, issuer_not_found} -> case find_issuer(OtpCert, no_candidate) of {ok, IssuerId} -> - {IssuerId, [Cert | RestPath]}; + {other, IssuerId}; Other -> - {Other, RestPath} + Other end end end, - case IssuerAnPath of - {{error, issuer_not_found}, _ } -> - %% The root CA was not sent and can not be found, we fail if verify = true - not_valid(?ALERT_REC(?FATAL, ?UNKNOWN_CA), Verify, {Cert, RestPath}); - {{SerialNr, Issuer}, Path} -> - case ssl_certificate_db:lookup_trusted_cert(CertDbRef, - SerialNr, Issuer) of + case SignedAndIssuerID of + {error, issuer_not_found} -> + %% The root CA was not sent and can not be found. + {unknown_ca, Path}; + {self, _} when length(Path) == 1 -> + {selfsigned_peer, Path}; + {_ ,{SerialNr, Issuer}} -> + case ssl_manager:lookup_trusted_cert(CertDbRef, SerialNr, Issuer) of {ok, {BinCert,_}} -> - {BinCert, Path, []}; + {BinCert, Path}; _ -> - %% Fail if verify = true - not_valid(?ALERT_REC(?FATAL, ?UNKNOWN_CA), - Verify, {Cert, RestPath}) + %% Root CA could not be verified + {unknown_ca, Path} end end. - +%%-------------------------------------------------------------------- +-spec certificate_chain(undefined | binary(), certdb_ref()) -> + {error, no_cert} | {ok, [der_cert()]}. +%% +%% Description: Return the certificate chain to send to peer. +%%-------------------------------------------------------------------- certificate_chain(undefined, _CertsDbRef) -> {error, no_cert}; certificate_chain(OwnCert, CertsDbRef) -> - {ok, ErlCert} = public_key:pkix_decode_cert(OwnCert, otp), + ErlCert = public_key:pkix_decode_cert(OwnCert, otp), certificate_chain(ErlCert, OwnCert, CertsDbRef, [OwnCert]). - -file_to_certificats(File) -> +%%-------------------------------------------------------------------- +-spec file_to_certificats(string()) -> [der_cert()]. +%% +%% Description: Return list of DER encoded certificates. +%%-------------------------------------------------------------------- +file_to_certificats(File) -> {ok, List} = ssl_manager:cache_pem_file(File), - [Bin || {cert, Bin, not_encrypted} <- List]. - - -%% Validates ssl/tls specific extensions -validate_extensions([], ValidationState, UnknownExtensions, _, AccErr, _) -> - {UnknownExtensions, ValidationState, AccErr}; - -validate_extensions([#'Extension'{extnID = ?'id-ce-extKeyUsage', - extnValue = KeyUse, - critical = true} | Rest], - ValidationState, UnknownExtensions, Verify, AccErr0, Role) -> + [Bin || {'Certificate', Bin, not_encrypted} <- List]. +%%-------------------------------------------------------------------- +-spec validate_extension(term(), #'Extension'{} | {bad_cert, atom()} | valid, + term()) -> {valid, term()} | + {fail, tuple()} | + {unknown, term()}. +%% +%% Description: Validates ssl/tls specific extensions +%%-------------------------------------------------------------------- +validate_extension(_,{extension, #'Extension'{extnID = ?'id-ce-extKeyUsage', + extnValue = KeyUse}}, Role) -> case is_valid_extkey_usage(KeyUse, Role) of true -> - validate_extensions(Rest, ValidationState, UnknownExtensions, - Verify, AccErr0, Role); + {valid, Role}; false -> - AccErr = - not_valid_extension({bad_cert, invalid_ext_key_usage}, Verify, AccErr0), - validate_extensions(Rest, ValidationState, UnknownExtensions, Verify, AccErr, Role) + {fail, {bad_cert, invalid_ext_key_usage}} end; +validate_extension(_, {bad_cert, _} = Reason, _) -> + {fail, Reason}; +validate_extension(_, {extension, _}, Role) -> + {unknown, Role}; +validate_extension(_, valid, Role) -> + {valid, Role}; +validate_extension(_, valid_peer, Role) -> + {valid, Role}. + +%%-------------------------------------------------------------------- +-spec is_valid_key_usage(list(), term()) -> boolean(). +%% +%% Description: Checks if Use is a valid key usage. +%%-------------------------------------------------------------------- +is_valid_key_usage(KeyUse, Use) -> + lists:member(Use, KeyUse). + +%%-------------------------------------------------------------------- +-spec select_extension(term(), list()) -> undefined | #'Extension'{}. +%% +%% Description: Selects the extension identified by Id if present in +%% a list of extensions. +%%-------------------------------------------------------------------- +select_extension(_, []) -> + undefined; +select_extension(Id, [#'Extension'{extnID = Id} = Extension | _]) -> + Extension; +select_extension(Id, [_ | Extensions]) -> + select_extension(Id, Extensions). + +%%-------------------------------------------------------------------- +-spec extensions_list(asn1_NOVALUE | list()) -> list(). +%% +%% Description: Handles that +%%-------------------------------------------------------------------- +extensions_list(asn1_NOVALUE) -> + []; +extensions_list(Extensions) -> + Extensions. + +%%-------------------------------------------------------------------- +-spec signature_type(term()) -> rsa | dsa . +%% +%% Description: +%%-------------------------------------------------------------------- +signature_type(RSA) when RSA == ?sha1WithRSAEncryption; + RSA == ?md5WithRSAEncryption -> + rsa; +signature_type(?'id-dsa-with-sha1') -> + dsa. -validate_extensions([Extension | Rest], ValidationState, UnknownExtensions, - Verify, AccErr, Role) -> - validate_extensions(Rest, ValidationState, [Extension | UnknownExtensions], - Verify, AccErr, Role). - %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- @@ -148,10 +212,10 @@ certificate_chain(_CertsDbRef, Chain, _SerialNr, _Issuer, true) -> {ok, lists:reverse(Chain)}; certificate_chain(CertsDbRef, Chain, SerialNr, Issuer, _SelfSigned) -> - case ssl_certificate_db:lookup_trusted_cert(CertsDbRef, + case ssl_manager:lookup_trusted_cert(CertsDbRef, SerialNr, Issuer) of {ok, {IssuerCert, ErlCert}} -> - {ok, ErlCert} = public_key:pkix_decode_cert(IssuerCert, otp), + ErlCert = public_key:pkix_decode_cert(IssuerCert, otp), certificate_chain(ErlCert, IssuerCert, CertsDbRef, [IssuerCert | Chain]); _ -> @@ -164,7 +228,7 @@ certificate_chain(CertsDbRef, Chain, SerialNr, Issuer, _SelfSigned) -> end. find_issuer(OtpCert, PrevCandidateKey) -> - case ssl_certificate_db:issuer_candidate(PrevCandidateKey) of + case ssl_manager:issuer_candidate(PrevCandidateKey) of no_more_candidates -> {error, issuer_not_found}; {Key, {_Cert, ErlCertCandidate}} -> @@ -176,22 +240,9 @@ find_issuer(OtpCert, PrevCandidateKey) -> end end. -not_valid(Alert, true, _) -> - throw(Alert); -not_valid(_, false, {ErlCert, Path}) -> - {ErlCert, Path, [{bad_cert, unknown_ca}]}. - is_valid_extkey_usage(KeyUse, client) -> %% Client wants to verify server is_valid_key_usage(KeyUse,?'id-kp-serverAuth'); is_valid_extkey_usage(KeyUse, server) -> %% Server wants to verify client is_valid_key_usage(KeyUse, ?'id-kp-clientAuth'). - -is_valid_key_usage(KeyUse, Use) -> - lists:member(Use, KeyUse). - -not_valid_extension(Error, true, _) -> - throw(Error); -not_valid_extension(Error, false, AccErrors) -> - [Error | AccErrors]. diff --git a/lib/ssl/src/ssl_certificate_db.erl b/lib/ssl/src/ssl_certificate_db.erl index b8c3c6f6b7..3eceefa304 100644 --- a/lib/ssl/src/ssl_certificate_db.erl +++ b/lib/ssl/src/ssl_certificate_db.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% Copyright Ericsson AB 2007-2011. All Rights Reserved. %% %% 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 @@ -22,20 +22,21 @@ %%---------------------------------------------------------------------- -module(ssl_certificate_db). - +-include("ssl_internal.hrl"). -include_lib("public_key/include/public_key.hrl"). -export([create/0, remove/1, add_trusted_certs/3, remove_trusted_certs/2, lookup_trusted_cert/3, issuer_candidate/1, - lookup_cached_certs/1, cache_pem_file/3]). + lookup_cached_certs/1, cache_pem_file/4, uncache_pem_file/2, lookup/2]). + +-type time() :: {non_neg_integer(), non_neg_integer(), non_neg_integer()}. %%==================================================================== %% Internal application API %%==================================================================== %%-------------------------------------------------------------------- -%% Function: create() -> Db -%% Db = term() - Reference to the crated database +-spec create() -> certdb_ref(). %% %% Description: Creates a new certificate db. %% Note: lookup_trusted_cert/3 may be called from any process but only @@ -47,8 +48,7 @@ create() -> ets:new(ssl_pid_to_file, [bag, private])]. %%-------------------------------------------------------------------- -%% Function: delete(Db) -> _ -%% Db = Database refererence as returned by create/0 +-spec remove(certdb_ref()) -> term(). %% %% Description: Removes database db %%-------------------------------------------------------------------- @@ -56,11 +56,9 @@ remove(Dbs) -> lists:foreach(fun(Db) -> true = ets:delete(Db) end, Dbs). %%-------------------------------------------------------------------- -%% Function: lookup_trusted_cert(Ref, SerialNumber, Issuer) -> {BinCert,DecodedCert} -%% Ref = ref() -%% SerialNumber = integer() -%% Issuer = {rdnSequence, IssuerAttrs} -%% BinCert = binary() +-spec lookup_trusted_cert(reference(), serialnumber(), issuer()) -> + undefined | {ok, {der_cert(), #'OTPCertificate'{}}}. + %% %% Description: Retrives the trusted certificate identified by %% <SerialNumber, Issuer>. Ref is used as it is specified @@ -78,16 +76,16 @@ lookup_cached_certs(File) -> ets:lookup(certificate_db_name(), {file, File}). %%-------------------------------------------------------------------- -%% Function: add_trusted_certs(Pid, File, Db) -> {ok, Ref} -%% Pid = pid() -%% File = string() -%% Db = Database refererence as returned by create/0 -%% Ref = ref() +-spec add_trusted_certs(pid(), string() | {der, list()}, certdb_ref()) -> {ok, certdb_ref()}. %% %% Description: Adds the trusted certificates from file <File> to the %% runtime database. Returns Ref that should be handed to lookup_trusted_cert %% together with the cert serialnumber and issuer. %%-------------------------------------------------------------------- +add_trusted_certs(_Pid, {der, DerList}, [CerDb, _,_]) -> + NewRef = make_ref(), + add_certs_from_der(DerList, NewRef, CerDb), + {ok, NewRef}; add_trusted_certs(Pid, File, [CertsDb, FileToRefDb, PidToFileDb]) -> Ref = case lookup(File, FileToRefDb) of undefined -> @@ -101,20 +99,39 @@ add_trusted_certs(Pid, File, [CertsDb, FileToRefDb, PidToFileDb]) -> end, insert(Pid, File, PidToFileDb), {ok, Ref}. - %%-------------------------------------------------------------------- -%% Function: cache_pem_file(Pid, File, Db) -> FileContent +-spec cache_pem_file(pid(), string(), time(), certdb_ref()) -> term(). %% %% Description: Cache file as binary in DB %%-------------------------------------------------------------------- -cache_pem_file(Pid, File, [CertsDb, _FileToRefDb, PidToFileDb]) -> - Res = {ok, Content} = public_key:pem_to_der(File), - insert({file, File}, Content, CertsDb), +cache_pem_file(Pid, File, Time, [CertsDb, _FileToRefDb, PidToFileDb]) -> + {ok, PemBin} = file:read_file(File), + Content = public_key:pem_decode(PemBin), + insert({file, File}, {Time, Content}, CertsDb), insert(Pid, File, PidToFileDb), - Res. + {ok, Content}. + +%-------------------------------------------------------------------- +-spec uncache_pem_file(string(), certdb_ref()) -> no_return(). +%% +%% Description: If a cached file is no longer valid (changed on disk) +%% we must terminate the connections using the old file content, and +%% when those processes are finish the cache will be cleaned. It is +%% a rare but possible case a new ssl client/server is started with +%% a filename with the same name as previously started client/server +%% but with different content. +%% -------------------------------------------------------------------- +uncache_pem_file(File, [_CertsDb, _FileToRefDb, PidToFileDb]) -> + Pids = select(PidToFileDb, [{{'$1', File},[],['$$']}]), + lists:foreach(fun([Pid]) -> + exit(Pid, shutdown) + end, Pids). + + %%-------------------------------------------------------------------- -%% Function: remove_trusted_certs(Pid, Db) -> _ +-spec remove_trusted_certs(pid(), certdb_ref()) -> term(). + %% %% Description: Removes trusted certs originating from %% the file associated to Pid from the runtime database. @@ -144,15 +161,13 @@ remove_trusted_certs(Pid, [CertsDb, FileToRefDb, PidToFileDb]) -> end. %%-------------------------------------------------------------------- -%% Function: issuer_candidate() -> {Key, Candidate} | no_more_candidates +-spec issuer_candidate(no_candidate | cert_key() | {file, term()}) -> + {cert_key(),{der_cert(), #'OTPCertificate'{}}} | no_more_candidates. %% -%% Candidate -%% -%% %% Description: If a certificat does not define its issuer through %% the extension 'ce-authorityKeyIdentifier' we can %% try to find the issuer in the database over known -%% certificates. +%% certificates. %%-------------------------------------------------------------------- issuer_candidate(no_candidate) -> Db = certificate_db_name(), @@ -179,6 +194,22 @@ issuer_candidate(PrevCandidateKey) -> end. %%-------------------------------------------------------------------- +-spec lookup(term(), term()) -> term() | undefined. +%% +%% Description: Looks up an element in a certificat <Db>. +%%-------------------------------------------------------------------- +lookup(Key, Db) -> + case ets:lookup(Db, Key) of + [] -> + undefined; + Contents -> + Pick = fun({_, Data}) -> Data; + ({_,_,Data}) -> Data + end, + [Pick(Data) || Data <- Contents] + end. + +%%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- certificate_db_name() -> @@ -196,29 +227,32 @@ ref_count(Key, Db,N) -> delete(Key, Db) -> _ = ets:delete(Db, Key). -lookup(Key, Db) -> - case ets:lookup(Db, Key) of - [] -> - undefined; - Contents -> - Pick = fun({_, Data}) -> Data; - ({_,_,Data}) -> Data - end, - [Pick(Data) || Data <- Contents] - end. +select(Db, MatchSpec)-> + ets:select(Db, MatchSpec). remove_certs(Ref, CertsDb) -> ets:match_delete(CertsDb, {{Ref, '_', '_'}, '_'}). +add_certs_from_der(DerList, Ref, CertsDb) -> + Add = fun(Cert) -> add_certs(Cert, Ref, CertsDb) end, + [Add(Cert) || Cert <- DerList]. + add_certs_from_file(File, Ref, CertsDb) -> - Decode = fun(Cert) -> - {ok, ErlCert} = public_key:pkix_decode_cert(Cert, otp), - TBSCertificate = ErlCert#'OTPCertificate'.tbsCertificate, - SerialNumber = TBSCertificate#'OTPTBSCertificate'.serialNumber, - Issuer = public_key:pkix_normalize_general_name( - TBSCertificate#'OTPTBSCertificate'.issuer), - insert({Ref, SerialNumber, Issuer}, {Cert,ErlCert}, CertsDb) - end, - {ok,Der} = public_key:pem_to_der(File), - [Decode(Cert) || {cert, Cert, not_encrypted} <- Der]. + Add = fun(Cert) -> add_certs(Cert, Ref, CertsDb) end, + {ok, PemBin} = file:read_file(File), + PemEntries = public_key:pem_decode(PemBin), + [Add(Cert) || {'Certificate', Cert, not_encrypted} <- PemEntries]. +add_certs(Cert, Ref, CertsDb) -> + try ErlCert = public_key:pkix_decode_cert(Cert, otp), + TBSCertificate = ErlCert#'OTPCertificate'.tbsCertificate, + SerialNumber = TBSCertificate#'OTPTBSCertificate'.serialNumber, + Issuer = public_key:pkix_normalize_name( + TBSCertificate#'OTPTBSCertificate'.issuer), + insert({Ref, SerialNumber, Issuer}, {Cert,ErlCert}, CertsDb) + catch + error:_ -> + Report = io_lib:format("SSL WARNING: Ignoring a CA cert as " + "it could not be correctly decoded.~n", []), + error_logger:info_report(Report) + end. diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl index 3d3d11b7f3..72f02a4362 100644 --- a/lib/ssl/src/ssl_cipher.erl +++ b/lib/ssl/src/ssl_cipher.erl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2007-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% %% 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. -%% +%% %% %CopyrightEnd% %% @@ -28,27 +28,25 @@ -include("ssl_internal.hrl"). -include("ssl_record.hrl"). -include("ssl_cipher.hrl"). --include("ssl_debug.hrl"). +-include("ssl_alert.hrl"). +-include_lib("public_key/include/public_key.hrl"). -export([security_parameters/2, suite_definition/1, - decipher/4, cipher/4, - suite/1, suites/1, - openssl_suite/1, openssl_suite_name/1]). + decipher/5, cipher/4, + suite/1, suites/1, anonymous_suites/0, + openssl_suite/1, openssl_suite_name/1, filter/2]). -compile(inline). %%-------------------------------------------------------------------- -%% Function: security_parameters(CipherSuite, SecParams) -> -%% #security_parameters{} -%% -%% CipherSuite - as defined in ssl_cipher.hrl -%% SecParams - #security_parameters{} +-spec security_parameters(cipher_suite(), #security_parameters{}) -> + #security_parameters{}. %% %% Description: Returns a security parameters record where the %% cipher values has been updated according to <CipherSuite> %%------------------------------------------------------------------- security_parameters(CipherSuite, SecParams) -> - { _, Cipher, Hash, Exportable} = suite_definition(CipherSuite), + { _, Cipher, Hash} = suite_definition(CipherSuite), SecParams#security_parameters{ cipher_suite = CipherSuite, bulk_cipher_algorithm = bulk_cipher_algorithm(Cipher), @@ -58,19 +56,14 @@ security_parameters(CipherSuite, SecParams) -> key_material_length = key_material(Cipher), iv_size = iv_size(Cipher), mac_algorithm = mac_algorithm(Hash), - hash_size = hash_size(Hash), - exportable = Exportable}. + hash_size = hash_size(Hash)}. %%-------------------------------------------------------------------- -%% Function: cipher(Method, CipherState, Mac, Data) -> -%% {Encrypted, UpdateCipherState} +-spec cipher(cipher_enum(), #cipher_state{}, binary(), binary()) -> + {binary(), #cipher_state{}}. %% -%% Method - integer() (as defined in ssl_cipher.hrl) -%% CipherState, UpdatedCipherState - #cipher_state{} -%% Data, Encrypted - binary() -%% -%% Description: Encrypts the data and the mac using method, updating -%% the cipher state +%% Description: Encrypts the data and the MAC using chipher described +%% by cipher_enum() and updating the cipher state %%------------------------------------------------------------------- cipher(?NULL, CipherState, <<>>, Fragment) -> GenStreamCipherList = [Fragment, <<>>], @@ -81,20 +74,12 @@ cipher(?RC4, CipherState, Mac, Fragment) -> S -> S end, GenStreamCipherList = [Fragment, Mac], - - ?DBG_HEX(GenStreamCipherList), - ?DBG_HEX(State0), {State1, T} = crypto:rc4_encrypt_with_state(State0, GenStreamCipherList), - ?DBG_HEX(T), {T, CipherState#cipher_state{state = State1}}; cipher(?DES, CipherState, Mac, Fragment) -> block_cipher(fun(Key, IV, T) -> crypto:des_cbc_encrypt(Key, IV, T) end, block_size(des_cbc), CipherState, Mac, Fragment); -cipher(?DES40, CipherState, Mac, Fragment) -> - block_cipher(fun(Key, IV, T) -> - crypto:des_cbc_encrypt(Key, IV, T) - end, block_size(des_cbc), CipherState, Mac, Fragment); cipher(?'3DES', CipherState, Mac, Fragment) -> block_cipher(fun(<<K1:8/binary, K2:8/binary, K3:8/binary>>, IV, T) -> crypto:des3_cbc_encrypt(K1, K2, K3, IV, T) @@ -104,101 +89,94 @@ cipher(?AES, CipherState, Mac, Fragment) -> crypto:aes_cbc_128_encrypt(Key, IV, T); (Key, IV, T) when byte_size(Key) =:= 32 -> crypto:aes_cbc_256_encrypt(Key, IV, T) - end, block_size(aes_128_cbc), CipherState, Mac, Fragment); + end, block_size(aes_128_cbc), CipherState, Mac, Fragment). %% cipher(?IDEA, CipherState, Mac, Fragment) -> %% block_cipher(fun(Key, IV, T) -> %% crypto:idea_cbc_encrypt(Key, IV, T) %% end, block_size(idea_cbc), CipherState, Mac, Fragment); -cipher(?RC2, CipherState, Mac, Fragment) -> - block_cipher(fun(Key, IV, T) -> - crypto:rc2_40_cbc_encrypt(Key, IV, T) - end, block_size(rc2_cbc_40), CipherState, Mac, Fragment). block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0, Mac, Fragment) -> TotSz = byte_size(Mac) + erlang:iolist_size(Fragment) + 1, {PaddingLength, Padding} = get_padding(TotSz, BlockSz), L = [Fragment, Mac, PaddingLength, Padding], - ?DBG_HEX(Key), - ?DBG_HEX(IV), - ?DBG_HEX(L), T = Fun(Key, IV, L), - ?DBG_HEX(T), NextIV = next_iv(T, IV), {T, CS0#cipher_state{iv=NextIV}}. %%-------------------------------------------------------------------- -%% Function: decipher(Method, CipherState, Mac, Data) -> -%% {Decrypted, UpdateCipherState} -%% -%% Method - integer() (as defined in ssl_cipher.hrl) -%% CipherState, UpdatedCipherState - #cipher_state{} -%% Data, Encrypted - binary() +-spec decipher(cipher_enum(), integer(), #cipher_state{}, binary(), tls_version()) -> + {binary(), binary(), #cipher_state{}} | #alert{}. %% -%% Description: Decrypts the data and the mac using method, updating -%% the cipher state +%% Description: Decrypts the data and the MAC using cipher described +%% by cipher_enum() and updating the cipher state. %%------------------------------------------------------------------- -decipher(?NULL, _HashSz, CipherState, Fragment) -> +decipher(?NULL, _HashSz, CipherState, Fragment, _) -> {Fragment, <<>>, CipherState}; -decipher(?RC4, HashSz, CipherState, Fragment) -> - ?DBG_TERM(CipherState#cipher_state.key), +decipher(?RC4, HashSz, CipherState, Fragment, _) -> State0 = case CipherState#cipher_state.state of undefined -> crypto:rc4_set_key(CipherState#cipher_state.key); S -> S end, - ?DBG_HEX(State0), - ?DBG_HEX(Fragment), - {State1, T} = crypto:rc4_encrypt_with_state(State0, Fragment), - ?DBG_HEX(T), - GSC = generic_stream_cipher_from_bin(T, HashSz), - #generic_stream_cipher{content=Content, mac=Mac} = GSC, - {Content, Mac, CipherState#cipher_state{state=State1}}; -decipher(?DES, HashSz, CipherState, Fragment) -> - block_decipher(fun(Key, IV, T) -> - crypto:des_cbc_decrypt(Key, IV, T) - end, CipherState, HashSz, Fragment); -decipher(?DES40, HashSz, CipherState, Fragment) -> + try crypto:rc4_encrypt_with_state(State0, Fragment) of + {State, Text} -> + GSC = generic_stream_cipher_from_bin(Text, HashSz), + #generic_stream_cipher{content = Content, mac = Mac} = GSC, + {Content, Mac, CipherState#cipher_state{state = State}} + catch + _:_ -> + %% This is a DECRYPTION_FAILED but + %% "differentiating between bad_record_mac and decryption_failed + %% alerts may permit certain attacks against CBC mode as used in + %% TLS [CBCATT]. It is preferable to uniformly use the + %% bad_record_mac alert to hide the specific type of the error." + ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC) + end; + +decipher(?DES, HashSz, CipherState, Fragment, Version) -> block_decipher(fun(Key, IV, T) -> crypto:des_cbc_decrypt(Key, IV, T) - end, CipherState, HashSz, Fragment); -decipher(?'3DES', HashSz, CipherState, Fragment) -> + end, CipherState, HashSz, Fragment, Version); +decipher(?'3DES', HashSz, CipherState, Fragment, Version) -> block_decipher(fun(<<K1:8/binary, K2:8/binary, K3:8/binary>>, IV, T) -> crypto:des3_cbc_decrypt(K1, K2, K3, IV, T) - end, CipherState, HashSz, Fragment); -decipher(?AES, HashSz, CipherState, Fragment) -> + end, CipherState, HashSz, Fragment, Version); +decipher(?AES, HashSz, CipherState, Fragment, Version) -> block_decipher(fun(Key, IV, T) when byte_size(Key) =:= 16 -> crypto:aes_cbc_128_decrypt(Key, IV, T); (Key, IV, T) when byte_size(Key) =:= 32 -> crypto:aes_cbc_256_decrypt(Key, IV, T) - end, CipherState, HashSz, Fragment); -%% decipher(?IDEA, HashSz, CipherState, Fragment) -> + end, CipherState, HashSz, Fragment, Version). +%% decipher(?IDEA, HashSz, CipherState, Fragment, Version) -> %% block_decipher(fun(Key, IV, T) -> %% crypto:idea_cbc_decrypt(Key, IV, T) -%% end, CipherState, HashSz, Fragment); -decipher(?RC2, HashSz, CipherState, Fragment) -> - block_decipher(fun(Key, IV, T) -> - crypto:rc2_40_cbc_decrypt(Key, IV, T) - end, CipherState, HashSz, Fragment). +%% end, CipherState, HashSz, Fragment, Version); block_decipher(Fun, #cipher_state{key=Key, iv=IV} = CipherState0, - HashSz, Fragment) -> - ?DBG_HEX(Key), - ?DBG_HEX(IV), - ?DBG_HEX(Fragment), - T = Fun(Key, IV, Fragment), - ?DBG_HEX(T), - GBC = generic_block_cipher_from_bin(T, HashSz), - ok = check_padding(GBC), %% TODO kolla ocks�... - Content = GBC#generic_block_cipher.content, - Mac = GBC#generic_block_cipher.mac, - CipherState1 = CipherState0#cipher_state{iv=next_iv(Fragment, IV)}, - {Content, Mac, CipherState1}. - + HashSz, Fragment, Version) -> + try Fun(Key, IV, Fragment) of + Text -> + GBC = generic_block_cipher_from_bin(Text, HashSz), + case is_correct_padding(GBC, Version) of + true -> + Content = GBC#generic_block_cipher.content, + Mac = GBC#generic_block_cipher.mac, + CipherState1 = CipherState0#cipher_state{iv=next_iv(Fragment, IV)}, + {Content, Mac, CipherState1}; + false -> + ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC) + end + catch + _:_ -> + %% This is a DECRYPTION_FAILED but + %% "differentiating between bad_record_mac and decryption_failed + %% alerts may permit certain attacks against CBC mode as used in + %% TLS [CBCATT]. It is preferable to uniformly use the + %% bad_record_mac alert to hide the specific type of the error." + ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC) + end. %%-------------------------------------------------------------------- -%% Function: suites(Version) -> [Suite] -%% -%% Version = version() -%% Suite = binary() from ssl_cipher.hrl +-spec suites(tls_version()) -> [cipher_suite()]. %% %% Description: Returns a list of supported cipher suites. %%-------------------------------------------------------------------- @@ -208,294 +186,138 @@ suites({3, N}) when N == 1; N == 2 -> ssl_tls1:suites(). %%-------------------------------------------------------------------- -%% Function: suite_definition(CipherSuite) -> -%% {KeyExchange, Cipher, Hash, Exportable} -%% +-spec anonymous_suites() -> [cipher_suite()]. %% -%% CipherSuite - as defined in ssl_cipher.hrl -%% KeyExchange - rsa | dh_dss | dh_rsa | dh_anon | dhe_dss | dhe_rsa -%% krb5 | *_export (old ssl) -%% Cipher - null | rc4_128 | idea_cbc | des_cbc | '3des_ede_cbc' -%% des40_cbc | dh_dss | aes_128_cbc | aes_256_cbc | -%% rc2_cbc_40 | rc4_40 -%% Hash - null | md5 | sha -%% Exportable - export | no_export | ignore(?) +%% Description: Returns a list of the anonymous cipher suites, only supported +%% if explicitly set by user. Intended only for testing. +%%-------------------------------------------------------------------- +anonymous_suites() -> + [?TLS_DH_anon_WITH_RC4_128_MD5, + ?TLS_DH_anon_WITH_DES_CBC_SHA, + ?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA, + ?TLS_DH_anon_WITH_AES_128_CBC_SHA, + ?TLS_DH_anon_WITH_AES_256_CBC_SHA]. + +%%-------------------------------------------------------------------- +-spec suite_definition(cipher_suite()) -> erl_cipher_suite(). %% -%% Description: Returns a security parameters record where the -%% cipher values has been updated according to <CipherSuite> -%% Note: since idea is unsupported on the openssl version used by -%% crypto (as of OTP R12B), we've commented away the idea stuff +%% Description: Return erlang cipher suite definition. +%% Note: Currently not supported suites are commented away. +%% They should be supported or removed in the future. %%------------------------------------------------------------------- %% TLS v1.1 suites suite_definition(?TLS_NULL_WITH_NULL_NULL) -> - {null, null, null, ignore}; -suite_definition(?TLS_RSA_WITH_NULL_MD5) -> - {rsa, null, md5, ignore}; -suite_definition(?TLS_RSA_WITH_NULL_SHA) -> - {rsa, null, sha, ignore}; -suite_definition(?TLS_RSA_WITH_RC4_128_MD5) -> % ok - {rsa, rc4_128, md5, no_export}; -suite_definition(?TLS_RSA_WITH_RC4_128_SHA) -> % ok - {rsa, rc4_128, sha, no_export}; -%% suite_definition(?TLS_RSA_WITH_IDEA_CBC_SHA) -> % unsupported -%% {rsa, idea_cbc, sha, no_export}; -suite_definition(?TLS_RSA_WITH_DES_CBC_SHA) -> % ok - {rsa, des_cbc, sha, no_export}; + {null, null, null}; +%% suite_definition(?TLS_RSA_WITH_NULL_MD5) -> +%% {rsa, null, md5}; +%% suite_definition(?TLS_RSA_WITH_NULL_SHA) -> +%% {rsa, null, sha}; +suite_definition(?TLS_RSA_WITH_RC4_128_MD5) -> + {rsa, rc4_128, md5}; +suite_definition(?TLS_RSA_WITH_RC4_128_SHA) -> + {rsa, rc4_128, sha}; +%% suite_definition(?TLS_RSA_WITH_IDEA_CBC_SHA) -> +%% {rsa, idea_cbc, sha}; +suite_definition(?TLS_RSA_WITH_DES_CBC_SHA) -> + {rsa, des_cbc, sha}; suite_definition(?TLS_RSA_WITH_3DES_EDE_CBC_SHA) -> - {rsa, '3des_ede_cbc', sha, no_export}; -suite_definition(?TLS_DH_DSS_WITH_DES_CBC_SHA) -> - {dh_dss, des_cbc, sha, no_export}; -suite_definition(?TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA) -> - {dh_dss, '3des_ede_cbc', sha, no_export}; -suite_definition(?TLS_DH_RSA_WITH_DES_CBC_SHA) -> - {dh_rsa, des_cbc, sha, no_export}; -suite_definition(?TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA) -> - {dh_rsa, '3des_ede_cbc', sha, no_export}; + {rsa, '3des_ede_cbc', sha}; suite_definition(?TLS_DHE_DSS_WITH_DES_CBC_SHA) -> - {dhe_dss, des_cbc, sha, no_export}; + {dhe_dss, des_cbc, sha}; suite_definition(?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA) -> - {dhe_dss, '3des_ede_cbc', sha, no_export}; + {dhe_dss, '3des_ede_cbc', sha}; suite_definition(?TLS_DHE_RSA_WITH_DES_CBC_SHA) -> - {dhe_rsa, des_cbc, sha, no_export}; + {dhe_rsa, des_cbc, sha}; suite_definition(?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA) -> - {dhe_rsa, '3des_ede_cbc', sha, no_export}; -suite_definition(?TLS_DH_anon_WITH_RC4_128_MD5) -> - {dh_anon, rc4_128, md5, no_export}; -suite_definition(?TLS_DH_anon_WITH_DES_CBC_SHA) -> - {dh_anon, des40_cbc, sha, no_export}; -suite_definition(?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA) -> - {dh_anon, '3des_ede_cbc', sha, no_export}; + {dhe_rsa, '3des_ede_cbc', sha}; %%% TSL V1.1 AES suites -suite_definition(?TLS_RSA_WITH_AES_128_CBC_SHA) -> % ok - {rsa, aes_128_cbc, sha, ignore}; -suite_definition(?TLS_DH_DSS_WITH_AES_128_CBC_SHA) -> - {dh_dss, aes_128_cbc, sha, ignore}; -suite_definition(?TLS_DH_RSA_WITH_AES_128_CBC_SHA) -> - {dh_rsa, aes_128_cbc, sha, ignore}; +suite_definition(?TLS_RSA_WITH_AES_128_CBC_SHA) -> + {rsa, aes_128_cbc, sha}; suite_definition(?TLS_DHE_DSS_WITH_AES_128_CBC_SHA) -> - {dhe_dss, aes_128_cbc, sha, ignore}; + {dhe_dss, aes_128_cbc, sha}; suite_definition(?TLS_DHE_RSA_WITH_AES_128_CBC_SHA) -> - {dhe_rsa, aes_128_cbc, sha, ignore}; -suite_definition(?TLS_DH_anon_WITH_AES_128_CBC_SHA) -> - {dh_anon, aes_128_cbc, sha, ignore}; -suite_definition(?TLS_RSA_WITH_AES_256_CBC_SHA) -> % ok - {rsa, aes_256_cbc, sha, ignore}; -suite_definition(?TLS_DH_DSS_WITH_AES_256_CBC_SHA) -> - {dh_dss, aes_256_cbc, sha, ignore}; -suite_definition(?TLS_DH_RSA_WITH_AES_256_CBC_SHA) -> - {dh_rsa, aes_256_cbc, sha, ignore}; + {dhe_rsa, aes_128_cbc, sha}; +suite_definition(?TLS_RSA_WITH_AES_256_CBC_SHA) -> + {rsa, aes_256_cbc, sha}; suite_definition(?TLS_DHE_DSS_WITH_AES_256_CBC_SHA) -> - {dhe_dss, aes_256_cbc, sha, ignore}; + {dhe_dss, aes_256_cbc, sha}; suite_definition(?TLS_DHE_RSA_WITH_AES_256_CBC_SHA) -> - {dhe_rsa, aes_256_cbc, sha, ignore}; + {dhe_rsa, aes_256_cbc, sha}; + +%%% DH-ANON deprecated by TLS spec and not available +%%% by default, but good for testing purposes. +suite_definition(?TLS_DH_anon_WITH_RC4_128_MD5) -> + {dh_anon, rc4_128, md5}; +suite_definition(?TLS_DH_anon_WITH_DES_CBC_SHA) -> + {dh_anon, des_cbc, sha}; +suite_definition(?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA) -> + {dh_anon, '3des_ede_cbc', sha}; +suite_definition(?TLS_DH_anon_WITH_AES_128_CBC_SHA) -> + {dh_anon, aes_128_cbc, sha}; suite_definition(?TLS_DH_anon_WITH_AES_256_CBC_SHA) -> - {dh_anon, aes_256_cbc, sha, ignore}; - -%% TSL V1.1 KRB SUITES -suite_definition(?TLS_KRB5_WITH_DES_CBC_SHA) -> - {krb5, des_cbc, sha, ignore}; -suite_definition(?TLS_KRB5_WITH_3DES_EDE_CBC_SHA) -> - {krb5, '3des_ede_cbc', sha, ignore}; -suite_definition(?TLS_KRB5_WITH_RC4_128_SHA) -> - {krb5, rc4_128, sha, ignore}; -%% suite_definition(?TLS_KRB5_WITH_IDEA_CBC_SHA) -> -%% {krb5, idea_cbc, sha, ignore}; -suite_definition(?TLS_KRB5_WITH_DES_CBC_MD5) -> - {krb5, des_cbc, md5, ignore}; -suite_definition(?TLS_KRB5_WITH_3DES_EDE_CBC_MD5) -> - {krb5, '3des_ede_cbc', md5, ignore}; -suite_definition(?TLS_KRB5_WITH_RC4_128_MD5) -> - {krb5, rc4_128, md5, ignore}; -%% suite_definition(?TLS_KRB5_WITH_IDEA_CBC_MD5) -> -%% {krb5, idea_cbc, md5, ignore}; - -suite_definition(?TLS_RSA_EXPORT1024_WITH_RC4_56_MD5) -> - {rsa, rc4_56, md5, export}; -suite_definition(?TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5) -> - {rsa, rc2_cbc_56, md5, export}; -suite_definition(?TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA) -> - {rsa, des_cbc, sha, export}; -suite_definition(?TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA) -> - {dhe_dss, des_cbc, sha, export}; -suite_definition(?TLS_RSA_EXPORT1024_WITH_RC4_56_SHA) -> - {rsa, rc4_56, sha, export}; -suite_definition(?TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA) -> - {dhe_dss, rc4_56, sha, export}; -suite_definition(?TLS_DHE_DSS_WITH_RC4_128_SHA) -> - {dhe_dss, rc4_128, sha, export}; - -%% Export suites TLS 1.0 OR SSLv3-only servers. -suite_definition(?TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA) -> - {krb5_export, des40_cbc, sha, export}; -suite_definition(?TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA) -> - {krb5_export, rc2_cbc_40, sha, export}; -suite_definition(?TLS_KRB5_EXPORT_WITH_RC4_40_SHA) -> - {krb5_export, des40_cbc, sha, export}; -suite_definition(?TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5) -> - {krb5_export, des40_cbc, md5, export}; -suite_definition(?TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5) -> - {krb5_export, rc2_cbc_40, md5, export}; -suite_definition(?TLS_KRB5_EXPORT_WITH_RC4_40_MD5) -> - {krb5_export, rc2_cbc_40, md5, export}; -suite_definition(?TLS_RSA_EXPORT_WITH_RC4_40_MD5) -> % ok - {rsa, rc4_40, md5, export}; -suite_definition(?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5) -> % ok - {rsa, rc2_cbc_40, md5, export}; -suite_definition(?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA) -> - {rsa, des40_cbc, sha, export}; -suite_definition(?TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA) -> - {dh_dss, des40_cbc, sha, export}; -suite_definition(?TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA) -> - {dh_rsa, des40_cbc, sha, export}; -suite_definition(?TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA) -> - {dhe_dss, des40_cbc, sha, export}; -suite_definition(?TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA) -> - {dhe_rsa, des40_cbc, sha, export}; -suite_definition(?TLS_DH_anon_EXPORT_WITH_RC4_40_MD5) -> - {dh_anon, rc4_40, md5, export}; -suite_definition(?TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA) -> - {dh_anon, des40_cbc, sha, export}. + {dh_anon, aes_256_cbc, sha}. + +%%-------------------------------------------------------------------- +-spec suite(erl_cipher_suite()) -> cipher_suite(). +%% +%% Description: Return TLS cipher suite definition. +%%-------------------------------------------------------------------- %% TLS v1.1 suites -suite({rsa, null, md5, ignore}) -> - ?TLS_RSA_WITH_NULL_MD5; -suite({rsa, null, sha, ignore}) -> - ?TLS_RSA_WITH_NULL_SHA; -suite({rsa, rc4_128, md5, no_export}) -> +%%suite({rsa, null, md5}) -> +%% ?TLS_RSA_WITH_NULL_MD5; +%%suite({rsa, null, sha}) -> +%% ?TLS_RSA_WITH_NULL_SHA; +suite({rsa, rc4_128, md5}) -> ?TLS_RSA_WITH_RC4_128_MD5; -suite({rsa, rc4_128, sha, no_export}) -> +suite({rsa, rc4_128, sha}) -> ?TLS_RSA_WITH_RC4_128_SHA; -%% suite({rsa, idea_cbc, sha, no_export}) -> +%% suite({rsa, idea_cbc, sha}) -> %% ?TLS_RSA_WITH_IDEA_CBC_SHA; -suite({rsa, des_cbc, sha, no_export}) -> +suite({rsa, des_cbc, sha}) -> ?TLS_RSA_WITH_DES_CBC_SHA; -suite({rsa, '3des_ede_cbc', sha, no_export}) -> +suite({rsa, '3des_ede_cbc', sha}) -> ?TLS_RSA_WITH_3DES_EDE_CBC_SHA; -suite({dh_dss, des_cbc, sha, no_export}) -> - ?TLS_DH_DSS_WITH_DES_CBC_SHA; -suite({dh_dss, '3des_ede_cbc', sha, no_export}) -> - ?TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA; -suite({dh_rsa, des_cbc, sha, no_export}) -> - ?TLS_DH_RSA_WITH_DES_CBC_SHA; -suite({dh_rsa, '3des_ede_cbc', sha, no_export}) -> - ?TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA; -suite({dhe_dss, des_cbc, sha, no_export}) -> +suite({dhe_dss, des_cbc, sha}) -> ?TLS_DHE_DSS_WITH_DES_CBC_SHA; -suite({dhe_dss, '3des_ede_cbc', sha, no_export}) -> +suite({dhe_dss, '3des_ede_cbc', sha}) -> ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA; -suite({dhe_rsa, des_cbc, sha, no_export}) -> +suite({dhe_rsa, des_cbc, sha}) -> ?TLS_DHE_RSA_WITH_DES_CBC_SHA; -suite({dhe_rsa, '3des_ede_cbc', sha, no_export}) -> +suite({dhe_rsa, '3des_ede_cbc', sha}) -> ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA; -suite({dh_anon, rc4_128, md5, no_export}) -> +suite({dh_anon, rc4_128, md5}) -> ?TLS_DH_anon_WITH_RC4_128_MD5; -suite({dh_anon, des40_cbc, sha, no_export}) -> +suite({dh_anon, des_cbc, sha}) -> ?TLS_DH_anon_WITH_DES_CBC_SHA; -suite({dh_anon, '3des_ede_cbc', sha, no_export}) -> +suite({dh_anon, '3des_ede_cbc', sha}) -> ?TLS_DH_anon_WITH_3DES_EDE_CBC_SHA; %%% TSL V1.1 AES suites -suite({rsa, aes_128_cbc, sha, ignore}) -> +suite({rsa, aes_128_cbc, sha}) -> ?TLS_RSA_WITH_AES_128_CBC_SHA; -suite({dh_dss, aes_128_cbc, sha, ignore}) -> - ?TLS_DH_DSS_WITH_AES_128_CBC_SHA; -suite({dh_rsa, aes_128_cbc, sha, ignore}) -> - ?TLS_DH_RSA_WITH_AES_128_CBC_SHA; -suite({dhe_dss, aes_128_cbc, sha, ignore}) -> +suite({dhe_dss, aes_128_cbc, sha}) -> ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA; -suite({dhe_rsa, aes_128_cbc, sha, ignore}) -> +suite({dhe_rsa, aes_128_cbc, sha}) -> ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA; -suite({dh_anon, aes_128_cbc, sha, ignore}) -> +suite({dh_anon, aes_128_cbc, sha}) -> ?TLS_DH_anon_WITH_AES_128_CBC_SHA; -suite({rsa, aes_256_cbc, sha, ignore}) -> +suite({rsa, aes_256_cbc, sha}) -> ?TLS_RSA_WITH_AES_256_CBC_SHA; -suite({dh_dss, aes_256_cbc, sha, ignore}) -> - ?TLS_DH_DSS_WITH_AES_256_CBC_SHA; -suite({dh_rsa, aes_256_cbc, sha, ignore}) -> - ?TLS_DH_RSA_WITH_AES_256_CBC_SHA; -suite({dhe_dss, aes_256_cbc, sha, ignore}) -> +suite({dhe_dss, aes_256_cbc, sha}) -> ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA; -suite({dhe_rsa, aes_256_cbc, sha, ignore}) -> +suite({dhe_rsa, aes_256_cbc, sha}) -> ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA; -suite({dh_anon, aes_256_cbc, sha, ignore}) -> - ?TLS_DH_anon_WITH_AES_256_CBC_SHA; - -%% TSL V1.1 KRB SUITES -suite({krb5, des_cbc, sha, ignore}) -> - ?TLS_KRB5_WITH_DES_CBC_SHA; -suite({krb5_cbc, '3des_ede_cbc', sha, ignore}) -> - ?TLS_KRB5_WITH_3DES_EDE_CBC_SHA; -suite({krb5, rc4_128, sha, ignore}) -> - ?TLS_KRB5_WITH_RC4_128_SHA; -%% suite({krb5_cbc, idea_cbc, sha, ignore}) -> -%% ?TLS_KRB5_WITH_IDEA_CBC_SHA; -suite({krb5_cbc, md5, ignore}) -> - ?TLS_KRB5_WITH_DES_CBC_MD5; -suite({krb5_ede_cbc, des_cbc, md5, ignore}) -> - ?TLS_KRB5_WITH_3DES_EDE_CBC_MD5; -suite({krb5_128, rc4_128, md5, ignore}) -> - ?TLS_KRB5_WITH_RC4_128_MD5; -%% suite({krb5, idea_cbc, md5, ignore}) -> -%% ?TLS_KRB5_WITH_IDEA_CBC_MD5; - -%% Export suites TLS 1.0 OR SSLv3-only servers. -suite({rsa, rc4_40, md5, export}) -> - ?TLS_RSA_EXPORT_WITH_RC4_40_MD5; -suite({rsa, rc2_cbc_40, md5, export}) -> - ?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5; -suite({rsa, des40_cbc, sha, export}) -> - ?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA; -suite({rsa, rc4_56, md5, export}) -> - ?TLS_RSA_EXPORT1024_WITH_RC4_56_MD5; -suite({rsa, rc2_cbc_56, md5, export}) -> - ?TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5; -suite({rsa, des_cbc, sha, export}) -> - ?TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA; -suite({dhe_dss, des_cbc, sha, export}) -> - ?TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA; -suite({rsa, rc4_56, sha, export}) -> - ?TLS_RSA_EXPORT1024_WITH_RC4_56_SHA; -suite({dhe_dss, rc4_56, sha, export}) -> - ?TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA; -suite({dhe_dss, rc4_128, sha, export}) -> - ?TLS_DHE_DSS_WITH_RC4_128_SHA; -suite({krb5_export, des40_cbc, sha, export}) -> - ?TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA; -suite({krb5_export, rc2_cbc_40, sha, export}) -> - ?TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA; -suite({krb5_export, rc4_cbc_40, sha, export}) -> - ?TLS_KRB5_EXPORT_WITH_RC4_40_SHA; -suite({krb5_export, des40_cbc, md5, export}) -> - ?TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5; -suite({krb5_export, rc2_cbc_40, md5, export}) -> - ?TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5; -suite({krb5_export, rc4_cbc_40, md5, export}) -> - ?TLS_KRB5_EXPORT_WITH_RC4_40_MD5; -suite({rsa_export, rc4_cbc_40, md5, export}) -> - ?TLS_RSA_EXPORT_WITH_RC4_40_MD5; -suite({rsa_export, rc2_cbc_40, md5, export}) -> - ?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5; -suite({rsa_export, des40_cbc, sha, export}) -> - ?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA; -suite({dh_dss_export, des40_cbc, sha, export}) -> - ?TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA; -suite({dh_rsa_export, des40_cbc, sha, export}) -> - ?TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA; -suite({dhe_dss_export, des40_cbc, sha, export}) -> - ?TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA; -suite({dhe_rsa_export, des40_cbc, sha, export}) -> - ?TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA; -suite({dh_anon_export, rc4_40, md5, export}) -> - ?TLS_DH_anon_EXPORT_WITH_RC4_40_MD5; -suite({dh_anon_export, des40_cbc, sha, export}) -> - ?TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA. - +suite({dh_anon, aes_256_cbc, sha}) -> + ?TLS_DH_anon_WITH_AES_256_CBC_SHA. +%%-------------------------------------------------------------------- +-spec openssl_suite(openssl_cipher_suite()) -> cipher_suite(). +%% +%% Description: Return TLS cipher suite definition. +%%-------------------------------------------------------------------- %% translate constants <-> openssl-strings -%% TODO: Is there a pattern in the nameing -%% that is useable to make a nicer function defention? - openssl_suite("DHE-RSA-AES256-SHA") -> ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA; openssl_suite("DHE-DSS-AES256-SHA") -> @@ -514,46 +336,21 @@ openssl_suite("DHE-DSS-AES128-SHA") -> ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA; openssl_suite("AES128-SHA") -> ?TLS_RSA_WITH_AES_128_CBC_SHA; -%% TODO: Do we want to support this? -%% openssl_suite("DHE-DSS-RC4-SHA") -> -%% ?TLS_DHE_DSS_WITH_RC4_128_SHA; %%openssl_suite("IDEA-CBC-SHA") -> %% ?TLS_RSA_WITH_IDEA_CBC_SHA; openssl_suite("RC4-SHA") -> ?TLS_RSA_WITH_RC4_128_SHA; openssl_suite("RC4-MD5") -> ?TLS_RSA_WITH_RC4_128_MD5; -%% TODO: Do we want to support this? -openssl_suite("EXP1024-RC4-MD5") -> - ?TLS_RSA_EXPORT1024_WITH_RC4_56_MD5; -openssl_suite("EXP1024-RC2-CBC-MD5") -> - ?TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5; -openssl_suite("EXP1024-DES-CBC-SHA") -> - ?TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA; -openssl_suite("EXP1024-DHE-DSS-DES-CBC-SHA") -> - ?TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA; -openssl_suite("EXP1024-RC4-SHA") -> - ?TLS_RSA_EXPORT1024_WITH_RC4_56_SHA; -openssl_suite("EXP1024-DHE-DSS-RC4-SHA") -> - ?TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA; -openssl_suite("DHE-DSS-RC4-SHA") -> - ?TLS_DHE_DSS_WITH_RC4_128_SHA; - openssl_suite("EDH-RSA-DES-CBC-SHA") -> ?TLS_DHE_RSA_WITH_DES_CBC_SHA; openssl_suite("DES-CBC-SHA") -> - ?TLS_RSA_WITH_DES_CBC_SHA; -openssl_suite("EXP-EDH-RSA-DES-CBC-SHA") -> - ?TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA; -openssl_suite("EXP-EDH-DSS-DES-CBC-SHA") -> - ?TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA; -openssl_suite("EXP-DES-CBC-SHA") -> - ?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA; -openssl_suite("EXP-RC2-CBC-MD5") -> - ?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5; -openssl_suite("EXP-RC4-MD5") -> - ?TLS_RSA_EXPORT_WITH_RC4_40_MD5. - + ?TLS_RSA_WITH_DES_CBC_SHA. +%%-------------------------------------------------------------------- +-spec openssl_suite_name(cipher_suite()) -> openssl_cipher_suite(). +%% +%% Description: Return openssl cipher suite name. +%%------------------------------------------------------------------- openssl_suite_name(?TLS_DHE_RSA_WITH_AES_256_CBC_SHA) -> "DHE-RSA-AES256-SHA"; openssl_suite_name(?TLS_DHE_DSS_WITH_AES_256_CBC_SHA) -> @@ -582,37 +379,28 @@ openssl_suite_name(?TLS_DHE_RSA_WITH_DES_CBC_SHA) -> "EDH-RSA-DES-CBC-SHA"; openssl_suite_name(?TLS_RSA_WITH_DES_CBC_SHA) -> "DES-CBC-SHA"; -openssl_suite_name(?TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA) -> - "EXP-EDH-RSA-DES-CBC-SHA"; -openssl_suite_name(?TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA) -> - "EXP-EDH-DSS-DES-CBC-SHA"; -openssl_suite_name(?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA) -> - "EXP-DES-CBC-SHA"; -openssl_suite_name(?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5) -> - "EXP-RC2-CBC-MD5"; -openssl_suite_name(?TLS_RSA_EXPORT_WITH_RC4_40_MD5) -> - "EXP-RC4-MD5"; - -openssl_suite_name(?TLS_RSA_EXPORT1024_WITH_RC4_56_MD5) -> - "EXP1024-RC4-MD5"; -openssl_suite_name(?TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5) -> - "EXP1024-RC2-CBC-MD5"; -openssl_suite_name(?TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA) -> - "EXP1024-DES-CBC-SHA"; -openssl_suite_name(?TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA) -> - "EXP1024-DHE-DSS-DES-CBC-SHA"; -openssl_suite_name(?TLS_RSA_EXPORT1024_WITH_RC4_56_SHA) -> - "EXP1024-RC4-SHA"; -openssl_suite_name(?TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA) -> - "EXP1024-DHE-DSS-RC4-SHA"; -openssl_suite_name(?TLS_DHE_DSS_WITH_RC4_128_SHA) -> - "DHE-DSS-RC4-SHA"; - %% No oppenssl name openssl_suite_name(Cipher) -> suite_definition(Cipher). %%-------------------------------------------------------------------- +-spec filter(undefined | binary(), [cipher_suite()]) -> [cipher_suite()]. +%% +%% Description: . +%%------------------------------------------------------------------- +filter(undefined, Ciphers) -> + Ciphers; +filter(DerCert, Ciphers) -> + OtpCert = public_key:pkix_decode_cert(DerCert, otp), + SigAlg = OtpCert#'OTPCertificate'.signatureAlgorithm, + case ssl_certificate:signature_type(SigAlg#'SignatureAlgorithm'.algorithm) of + rsa -> + filter_rsa(OtpCert, Ciphers -- dsa_signed_suites()); + dsa -> + Ciphers -- rsa_signed_suites() + end. + +%%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- @@ -621,15 +409,8 @@ bulk_cipher_algorithm(null) -> %% Not supported yet %% bulk_cipher_algorithm(idea_cbc) -> %% ?IDEA; -bulk_cipher_algorithm(Cipher) when Cipher == rc2_cbc_40; - Cipher == rc2_cbc_56 -> - ?RC2; -bulk_cipher_algorithm(Cipher) when Cipher == rc4_40; - Cipher == rc4_56; - Cipher == rc4_128 -> +bulk_cipher_algorithm(rc4_128) -> ?RC4; -bulk_cipher_algorithm(des40_cbc) -> - ?DES40; bulk_cipher_algorithm(des_cbc) -> ?DES; bulk_cipher_algorithm('3des_ede_cbc') -> @@ -639,15 +420,10 @@ bulk_cipher_algorithm(Cipher) when Cipher == aes_128_cbc; ?AES. type(Cipher) when Cipher == null; - Cipher == rc4_40; - Cipher == rc4_56; Cipher == rc4_128 -> ?STREAM; type(Cipher) when Cipher == idea_cbc; - Cipher == rc2_cbc_40; - Cipher == rc2_cbc_56; - Cipher == des40_cbc; Cipher == des_cbc; Cipher == '3des_ede_cbc'; Cipher == aes_128_cbc; @@ -659,13 +435,6 @@ key_material(null) -> key_material(Cipher) when Cipher == idea_cbc; Cipher == rc4_128 -> 16; -key_material(Cipher) when Cipher == rc2_cbc_56; - Cipher == rc4_56 -> - 7; -key_material(Cipher) when Cipher == rc2_cbc_40; - Cipher == rc4_40; - Cipher == des40_cbc -> - 5; key_material(des_cbc) -> 8; key_material('3des_ede_cbc') -> @@ -678,14 +447,9 @@ key_material(aes_256_cbc) -> expanded_key_material(null) -> 0; expanded_key_material(Cipher) when Cipher == idea_cbc; - Cipher == rc2_cbc_40; - Cipher == rc2_cbc_56; - Cipher == rc4_40; - Cipher == rc4_56; Cipher == rc4_128 -> 16; -expanded_key_material(Cipher) when Cipher == des_cbc; - Cipher == des40_cbc -> +expanded_key_material(Cipher) when Cipher == des_cbc -> 8; expanded_key_material('3des_ede_cbc') -> 24; @@ -696,13 +460,7 @@ expanded_key_material(Cipher) when Cipher == aes_128_cbc; effective_key_bits(null) -> 0; -effective_key_bits(Cipher) when Cipher == rc2_cbc_40; - Cipher == rc4_40; - Cipher == des40_cbc -> - 40; -effective_key_bits(Cipher) when Cipher == rc2_cbc_56; - Cipher == rc4_56; - Cipher == des_cbc -> +effective_key_bits(des_cbc) -> 56; effective_key_bits(Cipher) when Cipher == idea_cbc; Cipher == rc4_128; @@ -714,17 +472,12 @@ effective_key_bits(aes_256_cbc) -> 256. iv_size(Cipher) when Cipher == null; - Cipher == rc4_40; - Cipher == rc4_56; Cipher == rc4_128 -> 0; iv_size(Cipher) -> block_size(Cipher). block_size(Cipher) when Cipher == idea_cbc; - Cipher == rc2_cbc_40; - Cipher == rc2_cbc_56; - Cipher == des40_cbc; Cipher == des_cbc; Cipher == '3des_ede_cbc' -> 8; @@ -763,9 +516,18 @@ generic_stream_cipher_from_bin(T, HashSz) -> #generic_stream_cipher{content=Content, mac=Mac}. -check_padding(_GBC) -> - ok. - +is_correct_padding(_, {3, 0}) -> + true; +%% For interoperability reasons we do not check the padding in TLS 1.0 as it +%% is not strictly required and breaks interopability with for instance +%% Google. +is_correct_padding(_, {3, 1}) -> + true; +%% Padding must be check in TLS 1.1 and after +is_correct_padding(#generic_block_cipher{padding_length = Len, padding = Padding}, _) -> + list_to_binary(lists:duplicate(Len, Len)) == Padding. + + get_padding(Length, BlockSize) -> get_padding_aux(BlockSize, Length rem BlockSize). @@ -782,3 +544,51 @@ next_iv(Bin, IV) -> <<_:FirstPart/binary, NextIV:IVSz/binary>> = Bin, NextIV. +rsa_signed_suites() -> + dhe_rsa_suites() ++ rsa_suites(). + +dhe_rsa_suites() -> + [?TLS_DHE_RSA_WITH_AES_256_CBC_SHA, + ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, + ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA, + ?TLS_DHE_RSA_WITH_DES_CBC_SHA]. + +rsa_suites() -> + [?TLS_RSA_WITH_AES_256_CBC_SHA, + ?TLS_RSA_WITH_3DES_EDE_CBC_SHA, + ?TLS_RSA_WITH_AES_128_CBC_SHA, + %%?TLS_RSA_WITH_IDEA_CBC_SHA, + ?TLS_RSA_WITH_RC4_128_SHA, + ?TLS_RSA_WITH_RC4_128_MD5, + ?TLS_RSA_WITH_DES_CBC_SHA]. + +dsa_signed_suites() -> + dhe_dss_suites(). + +dhe_dss_suites() -> + [?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, + ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, + ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, + ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA]. + +filter_rsa(OtpCert, RsaCiphers) -> + TBSCert = OtpCert#'OTPCertificate'.tbsCertificate, + TBSExtensions = TBSCert#'OTPTBSCertificate'.extensions, + Extensions = ssl_certificate:extensions_list(TBSExtensions), + case ssl_certificate:select_extension(?'id-ce-keyUsage', Extensions) of + undefined -> + RsaCiphers; + #'Extension'{extnValue = KeyUse} -> + Result = filter_rsa_suites(keyEncipherment, + KeyUse, RsaCiphers, rsa_suites()), + filter_rsa_suites(digitalSignature, + KeyUse, Result, dhe_rsa_suites()) + end. + +filter_rsa_suites(Use, KeyUse, CipherSuits, RsaSuites) -> + case ssl_certificate:is_valid_key_usage(KeyUse, Use) of + true -> + CipherSuits; + false -> + CipherSuits -- RsaSuites + end. diff --git a/lib/ssl/src/ssl_cipher.hrl b/lib/ssl/src/ssl_cipher.hrl index 4304c501b7..8bd68cc190 100644 --- a/lib/ssl/src/ssl_cipher.hrl +++ b/lib/ssl/src/ssl_cipher.hrl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2007-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% %% 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. -%% +%% %% %CopyrightEnd% %% @@ -26,6 +26,14 @@ -ifndef(ssl_cipher). -define(ssl_cipher, true). +-type cipher() :: null |rc4_128 | idea_cbc | des40_cbc | des_cbc | '3des_ede_cbc' + | aes_128_cbc | aes_256_cbc. +-type hash() :: null | sha | md5. +-type erl_cipher_suite() :: {key_algo(), cipher(), hash()}. +-type cipher_suite() :: binary(). +-type cipher_enum() :: integer(). +-type openssl_cipher_suite() :: string(). + %%% SSL cipher protocol %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -define(CHANGE_CIPHER_SPEC_PROTO, 1). % _PROTO to not clash with % SSL record protocol @@ -57,7 +65,7 @@ %% TLS_NULL_WITH_NULL_NULL = { 0x00,0x00 }; -define(TLS_NULL_WITH_NULL_NULL, <<?BYTE(16#00), ?BYTE(16#00)>>). -%%% The following CipherSuite definitions require that the server +%%% The following cipher suite definitions require that the server %%% provide an RSA certificate that can be used for key exchange. The %%% server may request either an RSA or a DSS signature-capable %%% certificate in the certificate request message. @@ -68,24 +76,15 @@ %% TLS_RSA_WITH_NULL_SHA = { 0x00,0x02 }; -define(TLS_RSA_WITH_NULL_SHA, <<?BYTE(16#00), ?BYTE(16#02)>>). -%% TLS_RSA_EXPORT_WITH_RC4_40_MD5 = { 0x00,0x03 }; --define(TLS_RSA_EXPORT_WITH_RC4_40_MD5, <<?BYTE(16#00), ?BYTE(16#03)>>). - %% TLS_RSA_WITH_RC4_128_MD5 = { 0x00,0x04 }; -define(TLS_RSA_WITH_RC4_128_MD5, <<?BYTE(16#00), ?BYTE(16#04)>>). %% TLS_RSA_WITH_RC4_128_SHA = { 0x00,0x05 }; -define(TLS_RSA_WITH_RC4_128_SHA, <<?BYTE(16#00), ?BYTE(16#05)>>). -%% TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 = { 0x00,0x06 }; --define(TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5, <<?BYTE(16#00), ?BYTE(16#06)>>). - %% TLS_RSA_WITH_IDEA_CBC_SHA = { 0x00,0x07 }; -define(TLS_RSA_WITH_IDEA_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#07)>>). -%% TLS_RSA_EXPORT_WITH_DES40_CBC_SHA = { 0x00,0x08 }; --define(TLS_RSA_EXPORT_WITH_DES40_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#08)>>). - %% TLS_RSA_WITH_DES_CBC_SHA = { 0x00,0x09 }; -define(TLS_RSA_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#09)>>). @@ -106,51 +105,33 @@ %%% provided by the client must use the parameters (group and %%% generator) described by the server. -%% TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA = { 0x00,0x0B }; --define(TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#0B)>>). - %% TLS_DH_DSS_WITH_DES_CBC_SHA = { 0x00,0x0C }; -define(TLS_DH_DSS_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#0C)>>). %% TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA = { 0x00,0x0D }; -define(TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#0D)>>). -%% TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA = { 0x00,0x0E }; --define(TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#0E)>>). - %% TLS_DH_RSA_WITH_DES_CBC_SHA = { 0x00,0x0F }; -define(TLS_DH_RSA_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#0F)>>). %% TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA = { 0x00,0x10 }; -define(TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#10)>>). -%% TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA = { 0x00,0x11 }; --define(TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#11)>>). - %% TLS_DHE_DSS_WITH_DES_CBC_SHA = { 0x00,0x12 }; -define(TLS_DHE_DSS_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#12)>>). %% TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA = { 0x00,0x13 }; -define(TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#13)>>). -%% TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA = { 0x00,0x14 }; --define(TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#14)>>). - %% TLS_DHE_RSA_WITH_DES_CBC_SHA = { 0x00,0x15 }; -define(TLS_DHE_RSA_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#15)>>). %% TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA = { 0x00,0x16 }; -define(TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#16)>>). -%% TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 = { 0x00,0x17 }; --define(TLS_DH_anon_EXPORT_WITH_RC4_40_MD5, <<?BYTE(16#00), ?BYTE(16#17)>>). - %% TLS_DH_anon_WITH_RC4_128_MD5 = { 0x00,0x18 }; -define(TLS_DH_anon_WITH_RC4_128_MD5, <<?BYTE(16#00),?BYTE(16#18)>>). -%% TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA = { 0x00,0x19 }; --define(TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#19)>>). - %% TLS_DH_anon_WITH_DES_CBC_SHA = { 0x00,0x1A }; -define(TLS_DH_anon_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#1A)>>). @@ -222,32 +203,9 @@ %% TLS_KRB5_WITH_IDEA_CBC_MD5 = { 0x00,0x25 }; -define(TLS_KRB5_WITH_IDEA_CBC_MD5, <<?BYTE(16#00), ?BYTE(16#25)>>). -%% TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA = { 0x00,0x26 }; --define(TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA, <<?BYTE(16#00), ?BYTE(16#26)>>). - -%% TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA = { 0x00,0x27 }; --define(TLS_KRB5_EXPORT_WITH_RC2_CBC_40_SHA, <<?BYTE(16#00), ?BYTE(16#27)>>). - -%% TLS_KRB5_EXPORT_WITH_RC4_40_SHA = { 0x00,0x28 }; --define(TLS_KRB5_EXPORT_WITH_RC4_40_SHA, <<?BYTE(16#00), ?BYTE(16#28)>>). - -%% TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5 = { 0x00,0x29 }; --define(TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5, <<?BYTE(16#00), ?BYTE(16#29)>>). - -%% TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5 = { 0x00,0x2A }; --define(TLS_KRB5_EXPORT_WITH_RC2_CBC_40_MD5, <<?BYTE(16#00), ?BYTE(16#2A)>>). - -%% TLS_KRB5_EXPORT_WITH_RC4_40_MD5 = { 0x00,0x2B }; --define(TLS_KRB5_EXPORT_WITH_RC4_40_MD5, <<?BYTE(16#00), ?BYTE(16#2B)>>). - -%% Additional TLS ciphersuites from draft-ietf-tls-56-bit-ciphersuites-00.txt - --define(TLS_RSA_EXPORT1024_WITH_RC4_56_MD5, <<?BYTE(16#00), ?BYTE(16#60)>>). --define(TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5, <<?BYTE(16#00), ?BYTE(16#61)>>). --define(TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#62)>>). --define(TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA, <<?BYTE(16#00), ?BYTE(16#63)>>). --define(TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, <<?BYTE(16#00), ?BYTE(16#64)>>). --define(TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA, <<?BYTE(16#00), ?BYTE(16#65)>>). --define(TLS_DHE_DSS_WITH_RC4_128_SHA, <<?BYTE(16#00), ?BYTE(16#66)>>). +%% RFC 5746 - Not a real cipher suite used to signal empty "renegotiation_info" extension +%% to avoid handshake failure from old servers that do not ignore +%% hello extension data as they should. +-define(TLS_EMPTY_RENEGOTIATION_INFO_SCSV, <<?BYTE(16#00), ?BYTE(16#FF)>>). -endif. % -ifdef(ssl_cipher). diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl index 8ff001b172..2c452837f8 100644 --- a/lib/ssl/src/ssl_connection.erl +++ b/lib/ssl/src/ssl_connection.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% Copyright Ericsson AB 2007-2011. All Rights Reserved. %% %% 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 @@ -29,7 +29,6 @@ -behaviour(gen_fsm). --include("ssl_debug.hrl"). -include("ssl_handshake.hrl"). -include("ssl_alert.hrl"). -include("ssl_record.hrl"). @@ -39,7 +38,8 @@ -include_lib("public_key/include/public_key.hrl"). %% Internal application API --export([send/2, send/3, recv/3, connect/7, accept/6, close/1, shutdown/2, +-export([send/2, recv/3, connect/7, ssl_accept/6, handshake/2, + socket_control/3, close/1, shutdown/2, new_user/2, get_opts/2, set_opts/2, info/1, session_info/1, peer_certificate/1, sockname/1, peername/1, renegotiation/1]). @@ -57,22 +57,23 @@ transport_cb, % atom() - callback module data_tag, % atom() - ex tcp. close_tag, % atom() - ex tcp_closed + error_tag, % atom() - ex tcp_error host, % string() | ipadress() port, % integer() socket, % socket() ssl_options, % #ssl_options{} socket_options, % #socket_options{} connection_states, % #connection_states{} from ssl_record.hrl + tls_packets = [], % Not yet handled decode ssl/tls packets. tls_record_buffer, % binary() buffer of incomplete records tls_handshake_buffer, % binary() buffer of incomplete handshakes %% {{md5_hash, sha_hash}, {prev_md5, prev_sha}} (binary()) tls_handshake_hashes, % see above tls_cipher_texts, % list() received but not deciphered yet - own_cert, % binary() - session, % #session{} from ssl_handshake.erl + session, % #session{} from ssl_handshake.hrl session_cache, % session_cache_cb, % - negotiated_version, % #protocol_version{} + negotiated_version, % tls_version() supported_protocol_versions, % [atom()] client_certificate_requested = false, key_algorithm, % atom as defined by cipher_suite @@ -85,57 +86,105 @@ from, % term(), where to reply bytes_to_read, % integer(), # bytes to read in passive mode user_data_buffer, % binary() -%% tls_buffer, % Keeps a lookahead one packet if available log_alert, % boolean() renegotiation, % {boolean(), From | internal | peer} recv_during_renegotiation, %boolean() - send_queue % queue() + send_queue, % queue() + terminated = false % }). -define(DEFAULT_DIFFIE_HELLMAN_PARAMS, #'DHParameter'{prime = ?DEFAULT_DIFFIE_HELLMAN_PRIME, base = ?DEFAULT_DIFFIE_HELLMAN_GENERATOR}). +-type state_name() :: hello | abbreviated | certify | cipher | connection. +-type gen_fsm_state_return() :: {next_state, state_name(), #state{}} | + {next_state, state_name(), #state{}, timeout()} | + {stop, term(), #state{}}. + %%==================================================================== %% Internal application API %%==================================================================== %%-------------------------------------------------------------------- -%% Function: +-spec send(pid(), iodata()) -> ok | {error, reason()}. %% -%% Description: +%% Description: Sends data over the ssl connection %%-------------------------------------------------------------------- send(Pid, Data) -> - sync_send_all_state_event(Pid, {application_data, erlang:iolist_to_binary(Data)}, infinity). -send(Pid, Data, Timeout) -> - sync_send_all_state_event(Pid, {application_data, erlang:iolist_to_binary(Data)}, Timeout). + sync_send_all_state_event(Pid, {application_data, + %% iolist_to_binary should really + %% be called iodata_to_binary() + erlang:iolist_to_binary(Data)}, infinity). + %%-------------------------------------------------------------------- -%% Function: +-spec recv(pid(), integer(), timeout()) -> + {ok, binary() | list()} | {error, reason()}. %% -%% Description: +%% Description: Receives data when active = false %%-------------------------------------------------------------------- recv(Pid, Length, Timeout) -> sync_send_all_state_event(Pid, {recv, Length}, Timeout). %%-------------------------------------------------------------------- -%% Function: +-spec connect(host(), port_num(), port(), {#ssl_options{}, #socket_options{}}, + pid(), tuple(), timeout()) -> + {ok, #sslsocket{}} | {error, reason()}. %% -%% Description: +%% Description: Connect to a ssl server. %%-------------------------------------------------------------------- connect(Host, Port, Socket, Options, User, CbInfo, Timeout) -> - start_fsm(client, Host, Port, Socket, Options, User, CbInfo, - Timeout). + try start_fsm(client, Host, Port, Socket, Options, User, CbInfo, + Timeout) + catch + exit:{noproc, _} -> + {error, ssl_not_started} + end. +%%-------------------------------------------------------------------- +-spec ssl_accept(port_num(), port(), {#ssl_options{}, #socket_options{}}, + pid(), tuple(), timeout()) -> + {ok, #sslsocket{}} | {error, reason()}. +%% +%% Description: Performs accept on a ssl listen socket. e.i. performs +%% ssl handshake. %%-------------------------------------------------------------------- -%% Function: +ssl_accept(Port, Socket, Opts, User, CbInfo, Timeout) -> + try start_fsm(server, "localhost", Port, Socket, Opts, User, + CbInfo, Timeout) + catch + exit:{noproc, _} -> + {error, ssl_not_started} + end. + +%%-------------------------------------------------------------------- +-spec handshake(#sslsocket{}, timeout()) -> ok | {error, reason()}. %% -%% Description: +%% Description: Starts ssl handshake. %%-------------------------------------------------------------------- -accept(Port, Socket, Opts, User, CbInfo, Timeout) -> - start_fsm(server, "localhost", Port, Socket, Opts, User, - CbInfo, Timeout). +handshake(#sslsocket{pid = Pid}, Timeout) -> + case sync_send_all_state_event(Pid, start, Timeout) of + connected -> + ok; + Error -> + Error + end. +%-------------------------------------------------------------------- +-spec socket_control(port(), pid(), atom()) -> + {ok, #sslsocket{}} | {error, reason()}. +%% +%% Description: Set the ssl process to own the accept socket +%%-------------------------------------------------------------------- +socket_control(Socket, Pid, CbModule) -> + case CbModule:controlling_process(Socket, Pid) of + ok -> + {ok, sslsocket(Pid)}; + {error, Reason} -> + {error, Reason} + end. + %%-------------------------------------------------------------------- -%% Function: +-spec close(pid()) -> ok | {error, reason()}. %% -%% Description: +%% Description: Close a ssl connection %%-------------------------------------------------------------------- close(ConnectionPid) -> case sync_send_all_state_event(ConnectionPid, close) of @@ -146,80 +195,78 @@ close(ConnectionPid) -> end. %%-------------------------------------------------------------------- -%% Function: +-spec shutdown(pid(), atom()) -> ok | {error, reason()}. %% -%% Description: +%% Description: Same as gen_tcp:shutdown/2 %%-------------------------------------------------------------------- shutdown(ConnectionPid, How) -> sync_send_all_state_event(ConnectionPid, {shutdown, How}). - %%-------------------------------------------------------------------- -%% Function: +-spec new_user(pid(), pid()) -> ok | {error, reason()}. %% -%% Description: +%% Description: Changes process that receives the messages when active = true +%% or once. %%-------------------------------------------------------------------- new_user(ConnectionPid, User) -> sync_send_all_state_event(ConnectionPid, {new_user, User}). %%-------------------------------------------------------------------- -%% Function: +-spec sockname(pid()) -> {ok, {tuple(), port_num()}} | {error, reason()}. %% -%% Description: +%% Description: Same as inet:sockname/1 %%-------------------------------------------------------------------- sockname(ConnectionPid) -> sync_send_all_state_event(ConnectionPid, sockname). %%-------------------------------------------------------------------- -%% Function: +-spec peername(pid()) -> {ok, {tuple(), port_num()}} | {error, reason()}. %% -%% Description: +%% Description: Same as inet:peername/1 %%-------------------------------------------------------------------- peername(ConnectionPid) -> sync_send_all_state_event(ConnectionPid, peername). %%-------------------------------------------------------------------- -%% Function: +-spec get_opts(pid(), list()) -> {ok, list()} | {error, reason()}. %% -%% Description: +%% Description: Same as inet:getopts/2 %%-------------------------------------------------------------------- -get_opts({ListenSocket, {_SslOpts, SockOpts}, _}, OptTags) -> - get_socket_opts(ListenSocket, OptTags, SockOpts, []); get_opts(ConnectionPid, OptTags) -> sync_send_all_state_event(ConnectionPid, {get_opts, OptTags}). %%-------------------------------------------------------------------- -%% Function: +-spec set_opts(pid(), list()) -> ok | {error, reason()}. %% -%% Description: +%% Description: Same as inet:setopts/2 %%-------------------------------------------------------------------- set_opts(ConnectionPid, Options) -> sync_send_all_state_event(ConnectionPid, {set_opts, Options}). %%-------------------------------------------------------------------- -%% Function: +-spec info(pid()) -> {ok, {atom(), tuple()}} | {error, reason()}. %% -%% Description: +%% Description: Returns ssl protocol and cipher used for the connection %%-------------------------------------------------------------------- info(ConnectionPid) -> sync_send_all_state_event(ConnectionPid, info). %%-------------------------------------------------------------------- -%% Function: +-spec session_info(pid()) -> {ok, list()} | {error, reason()}. %% -%% Description: +%% Description: Returns info about the ssl session %%-------------------------------------------------------------------- session_info(ConnectionPid) -> sync_send_all_state_event(ConnectionPid, session_info). %%-------------------------------------------------------------------- -%% Function: +-spec peer_certificate(pid()) -> {ok, binary()| undefined} | {error, reason()}. %% -%% Description: +%% Description: Returns the peer cert %%-------------------------------------------------------------------- peer_certificate(ConnectionPid) -> sync_send_all_state_event(ConnectionPid, peer_certificate). %%-------------------------------------------------------------------- -%% Function: +-spec renegotiation(pid()) -> ok | {error, reason()}. %% -%% Description: +%% Description: Starts a renegotiation of the ssl session. %%-------------------------------------------------------------------- renegotiation(ConnectionPid) -> sync_send_all_state_event(ConnectionPid, renegotiate). @@ -229,7 +276,8 @@ renegotiation(ConnectionPid) -> %%==================================================================== %%-------------------------------------------------------------------- -%% Function: start_link() -> {ok,Pid} | ignore | {error,Error} +-spec start_link(atom(), host(), port_num(), 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 @@ -243,127 +291,119 @@ start_link(Role, Host, Port, Socket, Options, User, CbInfo) -> %% gen_fsm callbacks %%==================================================================== %%-------------------------------------------------------------------- -%% Function: init(Args) -> {ok, StateName, State} | -%% {ok, StateName, State, Timeout} | -%% ignore | -%% {stop, StopReason} +-spec init(list()) -> {ok, state_name(), #state{}, timeout()} | {stop, term()}. +%% Possible return values not used now. +%% | {ok, state_name(), #state{}} | +%% ignore %% Description:Whenever a gen_fsm is started using gen_fsm:start/[3,4] or %% gen_fsm:start_link/3,4, this function is called by the new process to %% initialize. %%-------------------------------------------------------------------- -init([Role, Host, Port, Socket, {SSLOpts, _} = Options, +init([Role, Host, Port, Socket, {SSLOpts0, _} = Options, User, CbInfo]) -> State0 = initial_state(Role, Host, Port, Socket, Options, User, CbInfo), Hashes0 = ssl_handshake:init_hashes(), - try ssl_init(SSLOpts, Role) of + try ssl_init(SSLOpts0, Role) of {ok, Ref, CacheRef, OwnCert, Key, DHParams} -> + Session = State0#state.session, State = State0#state{tls_handshake_hashes = Hashes0, - own_cert = OwnCert, + session = Session#session{own_certificate = OwnCert}, cert_db_ref = Ref, session_cache = CacheRef, private_key = Key, diffie_hellman_params = DHParams}, - {ok, hello, State} + {ok, hello, State, get_timeout(State)} catch throw:Error -> {stop, Error} end. - + %%-------------------------------------------------------------------- -%% Function: -%% state_name(Event, State) -> {next_state, NextStateName, NextState}| -%% {next_state, NextStateName, -%% NextState, Timeout} | -%% {stop, Reason, NewState} +%% -spec state_name(event(), #state{}) -> gen_fsm_state_return() %% %% Description:There should be one instance of this function for each %% possible state name. Whenever a gen_fsm receives an event sent %% using gen_fsm:send_event/2, the instance of this function with the %% same name as the current state name StateName is called to handle %% the event. It is also called if a timeout occurs. +%% +%%-------------------------------------------------------------------- +-spec hello(start | #hello_request{} | #client_hello{} | #server_hello{} | term(), + #state{}) -> gen_fsm_state_return(). %%-------------------------------------------------------------------- -hello(socket_control, #state{host = Host, port = Port, role = client, - ssl_options = SslOpts, - transport_cb = Transport, socket = Socket, - connection_states = ConnectionStates} - = State0) -> +hello(start, #state{host = Host, port = Port, role = client, + ssl_options = SslOpts, + session = #session{own_certificate = Cert} = Session0, + transport_cb = Transport, socket = Socket, + connection_states = ConnectionStates, + renegotiation = {Renegotiation, _}} = State0) -> Hello = ssl_handshake:client_hello(Host, Port, - ConnectionStates, SslOpts), + ConnectionStates, + SslOpts, Renegotiation, Cert), + Version = Hello#client_hello.client_version, Hashes0 = ssl_handshake:init_hashes(), {BinMsg, CS2, Hashes1} = encode_handshake(Hello, Version, ConnectionStates, Hashes0), Transport:send(Socket, BinMsg), - State = State0#state{connection_states = CS2, + State1 = State0#state{connection_states = CS2, negotiated_version = Version, %% Requested version - session = - #session{session_id = Hello#client_hello.session_id, - is_resumable = false}, - tls_handshake_hashes = Hashes1}, - {next_state, hello, next_record(State)}; - -hello(socket_control, #state{role = server} = State) -> - {next_state, hello, next_record(State)}; + session = + Session0#session{session_id = Hello#client_hello.session_id, + is_resumable = false}, + tls_handshake_hashes = Hashes1}, + {Record, State} = next_record(State1), + next_state(hello, Record, State); + +hello(start, #state{role = server} = State0) -> + {Record, State} = next_record(State0), + next_state(hello, Record, State); -hello(#hello_request{}, #state{role = client} = State) -> - {next_state, hello, State}; +hello(#hello_request{}, #state{role = client} = State0) -> + {Record, State} = next_record(State0), + next_state(hello, Record, State); hello(#server_hello{cipher_suite = CipherSuite, compression_method = Compression} = Hello, - #state{session = Session0 = #session{session_id = OldId}, + #state{session = #session{session_id = OldId}, connection_states = ConnectionStates0, role = client, negotiated_version = ReqVersion, - host = Host, port = Port, - session_cache = Cache, - session_cache_cb = CacheCb} = State0) -> - - {Version, NewId, ConnectionStates1} = - ssl_handshake:hello(Hello, ConnectionStates0), - - {KeyAlgorithm, _, _, _} = - ssl_cipher:suite_definition(CipherSuite), - - PremasterSecret = make_premaster_secret(ReqVersion, KeyAlgorithm), - - State = State0#state{key_algorithm = KeyAlgorithm, - negotiated_version = Version, - connection_states = ConnectionStates1, - premaster_secret = PremasterSecret}, - - case ssl_session:is_new(OldId, NewId) of - true -> - Session = Session0#session{session_id = NewId, - cipher_suite = CipherSuite, - compression_method = Compression}, - {next_state, certify, - next_record(State#state{session = Session})}; - false -> - Session = CacheCb:lookup(Cache, {{Host, Port}, NewId}), - case ssl_handshake:master_secret(Version, Session, - ConnectionStates1, client) of - {_, ConnectionStates2} -> - {next_state, abbreviated, - next_record(State#state{ - connection_states = ConnectionStates2, - session = Session})}; - #alert{} = Alert -> - handle_own_alert(Alert, Version, hello, State), - {stop, normal, State} - end + renegotiation = {Renegotiation, _}, + ssl_options = SslOptions} = State0) -> + case ssl_handshake:hello(Hello, SslOptions, ConnectionStates0, Renegotiation) of + {Version, NewId, ConnectionStates} -> + {KeyAlgorithm, _, _} = + ssl_cipher:suite_definition(CipherSuite), + + PremasterSecret = make_premaster_secret(ReqVersion, KeyAlgorithm), + + State = State0#state{key_algorithm = KeyAlgorithm, + negotiated_version = Version, + connection_states = ConnectionStates, + premaster_secret = PremasterSecret}, + + case ssl_session:is_new(OldId, NewId) of + true -> + handle_new_session(NewId, CipherSuite, Compression, State); + false -> + handle_resumed_session(NewId, State#state{connection_states = ConnectionStates}) + end; + #alert{} = Alert -> + handle_own_alert(Alert, ReqVersion, hello, State0), + {stop, normal, State0} end; hello(Hello = #client_hello{client_version = ClientVersion}, State = #state{connection_states = ConnectionStates0, - port = Port, session = Session0, - session_cache = Cache, + port = Port, session = #session{own_certificate = Cert} = Session0, + renegotiation = {Renegotiation, _}, + session_cache = Cache, session_cache_cb = CacheCb, ssl_options = SslOpts}) -> - - case ssl_handshake:hello(Hello, {Port, SslOpts, - Session0, Cache, CacheCb, - ConnectionStates0}) of + case ssl_handshake:hello(Hello, SslOpts, {Port, Session0, Cache, CacheCb, + ConnectionStates0, Cert}, Renegotiation) of {Version, {Type, Session}, ConnectionStates} -> do_server_hello(Type, State#state{connection_states = ConnectionStates, @@ -372,50 +412,73 @@ hello(Hello = #client_hello{client_version = ClientVersion}, #alert{} = Alert -> handle_own_alert(Alert, ClientVersion, hello, State), {stop, normal, State} - end. + end; + +hello(timeout, State) -> + { next_state, hello, State, hibernate }; -abbreviated(socket_control, #state{role = server} = State) -> - {next_state, abbreviated, State}; -abbreviated(#hello_request{}, State) -> - {next_state, certify, State}; +hello(Msg, State) -> + handle_unexpected_message(Msg, hello, State). +%%-------------------------------------------------------------------- +-spec abbreviated(#hello_request{} | #finished{} | term(), + #state{}) -> gen_fsm_state_return(). +%%-------------------------------------------------------------------- +abbreviated(#hello_request{}, State0) -> + {Record, State} = next_record(State0), + next_state(hello, Record, State); -abbreviated(Finished = #finished{}, +abbreviated(#finished{verify_data = Data} = Finished, #state{role = server, negotiated_version = Version, tls_handshake_hashes = Hashes, - session = #session{master_secret = MasterSecret}} = - State0) -> + session = #session{master_secret = MasterSecret}, + connection_states = ConnectionStates0} = + State) -> case ssl_handshake:verify_connection(Version, Finished, client, MasterSecret, Hashes) of - verified -> - State = ack_connection(State0), - next_state_connection(State); + verified -> + ConnectionStates = ssl_record:set_client_verify_data(current_both, Data, ConnectionStates0), + next_state_connection(abbreviated, + ack_connection(State#state{connection_states = ConnectionStates})); #alert{} = Alert -> - handle_own_alert(Alert, Version, abbreviated, State0), - {stop, normal, State0} + handle_own_alert(Alert, Version, abbreviated, State), + {stop, normal, State} end; -abbreviated(Finished = #finished{}, +abbreviated(#finished{verify_data = Data} = Finished, #state{role = client, tls_handshake_hashes = Hashes0, session = #session{master_secret = MasterSecret}, - negotiated_version = Version} = State0) -> + negotiated_version = Version, + connection_states = ConnectionStates0} = State) -> case ssl_handshake:verify_connection(Version, Finished, server, MasterSecret, Hashes0) of verified -> - {ConnectionStates, Hashes} = finalize_client_handshake(State0), - State = ack_connection(State0), - next_state_connection(State#state{tls_handshake_hashes = Hashes, - connection_states = - ConnectionStates}); + ConnectionStates1 = ssl_record:set_server_verify_data(current_read, Data, ConnectionStates0), + {ConnectionStates, Hashes} = + finalize_handshake(State#state{connection_states = ConnectionStates1}, abbreviated), + next_state_connection(abbreviated, + ack_connection(State#state{tls_handshake_hashes = Hashes, + connection_states = + ConnectionStates})); #alert{} = Alert -> - handle_own_alert(Alert, Version, abbreviated, State0), - {stop, normal, State0} - end. + handle_own_alert(Alert, Version, abbreviated, State), + {stop, normal, State} + end; + +abbreviated(timeout, State) -> + { next_state, abbreviated, State, hibernate }; -certify(socket_control, #state{role = server} = State) -> - {next_state, certify, State}; -certify(#hello_request{}, State) -> - {next_state, certify, State}; +abbreviated(Msg, State) -> + handle_unexpected_message(Msg, abbreviated, State). + +%%-------------------------------------------------------------------- +-spec certify(#hello_request{} | #certificate{} | #server_key_exchange{} | + #certificate_request{} | #server_hello_done{} | #client_key_exchange{} | term(), + #state{}) -> gen_fsm_state_return(). +%%-------------------------------------------------------------------- +certify(#hello_request{}, State0) -> + {Record, State} = next_record(State0), + next_state(hello, Record, State); certify(#certificate{asn1_certificates = []}, #state{role = server, negotiated_version = Version, @@ -430,9 +493,9 @@ certify(#certificate{asn1_certificates = []}, #state{role = server, ssl_options = #ssl_options{verify = verify_peer, fail_if_no_peer_cert = false}} = - State) -> - {next_state, certify, - next_record(State#state{client_certificate_requested = false})}; + State0) -> + {Record, State} = next_record(State0#state{client_certificate_requested = false}), + next_state(certify, Record, State); certify(#certificate{} = Cert, #state{negotiated_version = Version, @@ -441,8 +504,7 @@ certify(#certificate{} = Cert, ssl_options = Opts} = State) -> case ssl_handshake:certify(Cert, CertDbRef, Opts#ssl_options.depth, Opts#ssl_options.verify, - Opts#ssl_options.verify_fun, - Opts#ssl_options.validate_extensions_fun, Role) of + Opts#ssl_options.verify_fun, Role) of {PeerCert, PublicKeyInfo} -> handle_peer_cert(PeerCert, PublicKeyInfo, State#state{client_certificate_requested = false}); @@ -454,28 +516,24 @@ certify(#certificate{} = Cert, certify(#server_key_exchange{} = KeyExchangeMsg, #state{role = client, negotiated_version = Version, key_algorithm = Alg} = State0) - when Alg == dhe_dss; Alg == dhe_rsa ->%%Not imp:Alg == dh_anon;Alg == krb5 -> + when Alg == dhe_dss; Alg == dhe_rsa; Alg == dh_anon -> case handle_server_key(KeyExchangeMsg, State0) of - #state{} = State -> - {next_state, certify, next_record(State)}; + #state{} = State1 -> + {Record, State} = next_record(State1), + next_state(certify, Record, State); #alert{} = Alert -> handle_own_alert(Alert, Version, certify_server_keyexchange, State0), {stop, normal, State0} end; -certify(#server_key_exchange{}, - State = #state{role = client, negotiated_version = Version, - key_algorithm = Alg}) - when Alg == rsa; Alg == dh_dss; Alg == dh_rsa -> - Alert = ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE), - handle_own_alert(Alert, Version, certify_server_key_exchange, State), - {stop, normal, State}; - -certify(#certificate_request{}, State) -> - NewState = State#state{client_certificate_requested = true}, - {next_state, certify, next_record(NewState)}; +certify(#server_key_exchange{} = Msg, + #state{role = client, key_algorithm = rsa} = State) -> + handle_unexpected_message(Msg, certify_server_keyexchange, State); +certify(#certificate_request{}, State0) -> + {Record, State} = next_record(State0#state{client_certificate_requested = true}), + next_state(certify, Record, State); %% Master secret was determined with help of server-key exchange msg certify(#server_hello_done{}, @@ -483,7 +541,7 @@ certify(#server_hello_done{}, connection_states = ConnectionStates0, negotiated_version = Version, premaster_secret = undefined, - role = client} = State0) -> + role = client} = State0) -> case ssl_handshake:master_secret(Version, Session, ConnectionStates0, client) of {MasterSecret, ConnectionStates1} -> @@ -515,280 +573,164 @@ certify(#server_hello_done{}, {stop, normal, State0} end; -certify(#client_key_exchange{}, - State = #state{role = server, - client_certificate_requested = true, - ssl_options = #ssl_options{fail_if_no_peer_cert = true}, - negotiated_version = Version}) -> +certify(#client_key_exchange{} = Msg, + #state{role = server, + client_certificate_requested = true, + ssl_options = #ssl_options{fail_if_no_peer_cert = true}} = State) -> %% We expect a certificate here - Alert = ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE), - handle_own_alert(Alert, Version, - certify_server_waiting_certificate, State), - {stop, normal, State}; + handle_unexpected_message(Msg, certify_client_key_exchange, State); - -certify(#client_key_exchange{exchange_keys - = #encrypted_premaster_secret{premaster_secret - = EncPMS}}, - #state{negotiated_version = Version, - connection_states = ConnectionStates0, - session = Session0, - private_key = Key} = State0) -> - try ssl_handshake:decrypt_premaster_secret(EncPMS, Key) of - PremasterSecret -> - case ssl_handshake:master_secret(Version, PremasterSecret, - ConnectionStates0, server) of - {MasterSecret, ConnectionStates} -> - Session = Session0#session{master_secret = MasterSecret}, - State = State0#state{connection_states = ConnectionStates, - session = Session}, - {next_state, cipher, next_record(State)}; - #alert{} = Alert -> - handle_own_alert(Alert, Version, - certify_client_key_exchange, State0), - {stop, normal, State0} - end +certify(#client_key_exchange{exchange_keys = Keys}, + State = #state{key_algorithm = KeyAlg, negotiated_version = Version}) -> + try + certify_client_key_exchange(ssl_handshake:decode_client_key(Keys, KeyAlg, Version), State) catch #alert{} = Alert -> - handle_own_alert(Alert, Version, certify_client_key_exchange, - State0), - {stop, normal, State0} + handle_own_alert(Alert, Version, certify_client_key_exchange, State), + {stop, normal, State} end; -certify(#client_key_exchange{exchange_keys = #client_diffie_hellman_public{ - dh_public = ClientPublicDhKey}}, - #state{negotiated_version = Version, - diffie_hellman_params = #'DHParameter'{prime = P, - base = G}, - diffie_hellman_keys = {_, ServerDhPrivateKey}, - role = Role, - session = Session, - connection_states = ConnectionStates0} = State0) -> - - PMpint = crypto:mpint(P), - GMpint = crypto:mpint(G), - PremasterSecret = crypto:dh_compute_key(mpint_binary(ClientPublicDhKey), - ServerDhPrivateKey, - [PMpint, GMpint]), - +certify(timeout, State) -> + { next_state, certify, State, hibernate }; + +certify(Msg, State) -> + handle_unexpected_message(Msg, certify, State). + +certify_client_key_exchange(#encrypted_premaster_secret{premaster_secret= EncPMS}, + #state{negotiated_version = Version, + connection_states = ConnectionStates0, + session = Session0, + private_key = Key} = State0) -> + PremasterSecret = ssl_handshake:decrypt_premaster_secret(EncPMS, Key), case ssl_handshake:master_secret(Version, PremasterSecret, - ConnectionStates0, Role) of + ConnectionStates0, server) of {MasterSecret, ConnectionStates} -> - State = State0#state{session = - Session#session{master_secret - = MasterSecret}, - connection_states = ConnectionStates}, - {next_state, cipher, next_record(State)}; + Session = Session0#session{master_secret = MasterSecret}, + State1 = State0#state{connection_states = ConnectionStates, + session = Session}, + {Record, State} = next_record(State1), + next_state(cipher, Record, State); + #alert{} = Alert -> + handle_own_alert(Alert, Version, + certify_client_key_exchange, State0), + {stop, normal, State0} + end; + +certify_client_key_exchange(#client_diffie_hellman_public{dh_public = ClientPublicDhKey}, + #state{negotiated_version = Version, + diffie_hellman_params = #'DHParameter'{prime = P, + base = G}, + diffie_hellman_keys = {_, ServerDhPrivateKey}} = State0) -> + case dh_master_secret(crypto:mpint(P), crypto:mpint(G), ClientPublicDhKey, ServerDhPrivateKey, State0) of + #state{} = State1 -> + {Record, State} = next_record(State1), + next_state(cipher, Record, State); #alert{} = Alert -> handle_own_alert(Alert, Version, certify_client_key_exchange, State0), {stop, normal, State0} end. -cipher(socket_control, #state{role = server} = State) -> - {next_state, cipher, State}; -cipher(#hello_request{}, State) -> - {next_state, cipher, State}; +%%-------------------------------------------------------------------- +-spec cipher(#hello_request{} | #certificate_verify{} | #finished{} | term(), + #state{}) -> gen_fsm_state_return(). +%%-------------------------------------------------------------------- +cipher(#hello_request{}, State0) -> + {Record, State} = next_record(State0), + next_state(hello, Record, State); cipher(#certificate_verify{signature = Signature}, #state{role = server, public_key_info = PublicKeyInfo, negotiated_version = Version, session = #session{master_secret = MasterSecret}, - key_algorithm = Algorithm, tls_handshake_hashes = Hashes - } = State) -> + } = State0) -> case ssl_handshake:certificate_verify(Signature, PublicKeyInfo, - Version, MasterSecret, - Algorithm, Hashes) of + Version, MasterSecret, Hashes) of valid -> - {next_state, cipher, next_record(State)}; + {Record, State} = next_record(State0), + next_state(cipher, Record, State); #alert{} = Alert -> - handle_own_alert(Alert, Version, cipher, State), - {stop, normal, State} + handle_own_alert(Alert, Version, cipher, State0), + {stop, normal, State0} end; -cipher(#finished{} = Finished, +cipher(#finished{verify_data = Data} = Finished, #state{negotiated_version = Version, host = Host, port = Port, role = Role, session = #session{master_secret = MasterSecret} = Session0, - tls_handshake_hashes = Hashes} = State0) -> - + tls_handshake_hashes = Hashes0} = State) -> case ssl_handshake:verify_connection(Version, Finished, opposite_role(Role), - MasterSecret, Hashes) of + MasterSecret, Hashes0) of verified -> - State = ack_connection(State0), Session = register_session(Role, Host, Port, Session0), - case Role of - client -> - next_state_connection(State#state{session = Session}); - server -> - {NewConnectionStates, NewHashes} = - finalize_server_handshake(State#state{ - session = Session}), - next_state_connection(State#state{connection_states = - NewConnectionStates, - session = Session, - tls_handshake_hashes = - NewHashes}) - end; + cipher_role(Role, Data, Session, State); #alert{} = Alert -> - handle_own_alert(Alert, Version, cipher, State0), - {stop, normal, State0} - end. + handle_own_alert(Alert, Version, cipher, State), + {stop, normal, State} + end; -connection(socket_control, #state{role = server} = State) -> - {next_state, connection, State}; -connection(#hello_request{}, State = #state{host = Host, port = Port, - socket = Socket, - ssl_options = SslOpts, - negotiated_version = Version, - transport_cb = Transport, - connection_states = ConnectionStates0, - tls_handshake_hashes = Hashes0}) -> +cipher(timeout, State) -> + { next_state, cipher, State, hibernate }; - Hello = ssl_handshake:client_hello(Host, Port, - ConnectionStates0, SslOpts), +cipher(Msg, State) -> + handle_unexpected_message(Msg, cipher, State). + +%%-------------------------------------------------------------------- +-spec connection(#hello_request{} | #client_hello{} | term(), + #state{}) -> gen_fsm_state_return(). +%%-------------------------------------------------------------------- +connection(#hello_request{}, #state{host = Host, port = Port, + socket = Socket, + session = #session{own_certificate = Cert}, + ssl_options = SslOpts, + negotiated_version = Version, + transport_cb = Transport, + connection_states = ConnectionStates0, + renegotiation = {Renegotiation, _}, + tls_handshake_hashes = Hashes0} = State0) -> + Hello = ssl_handshake:client_hello(Host, Port, ConnectionStates0, + SslOpts, Renegotiation, Cert), + {BinMsg, ConnectionStates1, Hashes1} = encode_handshake(Hello, Version, ConnectionStates0, Hashes0), Transport:send(Socket, BinMsg), - {next_state, hello, next_record(State#state{connection_states = - ConnectionStates1, - tls_handshake_hashes = Hashes1})}; + {Record, State} = next_record(State0#state{connection_states = + ConnectionStates1, + tls_handshake_hashes = Hashes1}), + next_state(hello, Record, State); connection(#client_hello{} = Hello, #state{role = server} = State) -> - hello(Hello, State). + hello(Hello, State); + +connection(timeout, State) -> + {next_state, connection, State, hibernate}; +connection(Msg, State) -> + handle_unexpected_message(Msg, connection, State). %%-------------------------------------------------------------------- -%% Function: -%% handle_event(Event, StateName, State) -> {next_state, NextStateName, -%% NextState} | -%% {next_state, NextStateName, -%% NextState, Timeout} | -%% {stop, Reason, NewState} +-spec handle_event(term(), state_name(), #state{}) -> term(). +%% As it is not currently used gen_fsm_state_return() makes +%% dialyzer unhappy! +%% %% Description: Whenever a gen_fsm receives an event sent using %% gen_fsm:send_all_state_event/2, this function is called to handle -%% the event. +%% the event. Not currently used! %%-------------------------------------------------------------------- -handle_event(#ssl_tls{type = ?HANDSHAKE, fragment = Data}, - StateName, - State0 = #state{key_algorithm = KeyAlg, - tls_handshake_buffer = Buf0, - negotiated_version = Version}) -> - Handle = - fun({#hello_request{} = Packet, _}, {next_state, connection = SName, State}) -> - %% This message should not be included in handshake - %% message hashes. Starts new handshake (renegotiation) - Hs0 = ssl_handshake:init_hashes(), - ?MODULE:SName(Packet, State#state{tls_handshake_hashes=Hs0, - renegotiation = {true, peer}}); - ({#hello_request{} = Packet, _}, {next_state, SName, State}) -> - %% This message should not be included in handshake - %% message hashes. Already in negotiation so it will be ignored! - ?MODULE:SName(Packet, State); - ({#client_hello{} = Packet, Raw}, {next_state, connection = SName, State}) -> - Hs0 = ssl_handshake:init_hashes(), - Hs1 = ssl_handshake:update_hashes(Hs0, Raw), - ?MODULE:SName(Packet, State#state{tls_handshake_hashes=Hs1, - renegotiation = {true, peer}}); - ({Packet, Raw}, {next_state, SName, State = #state{tls_handshake_hashes=Hs0}}) -> - Hs1 = ssl_handshake:update_hashes(Hs0, Raw), - ?MODULE:SName(Packet, State#state{tls_handshake_hashes=Hs1}); - (_, StopState) -> StopState - end, - try - {Packets, Buf} = ssl_handshake:get_tls_handshake(Data,Buf0, KeyAlg,Version), - Start = {next_state, StateName, State0#state{tls_handshake_buffer = Buf}}, - lists:foldl(Handle, Start, Packets) - catch throw:#alert{} = Alert -> - handle_own_alert(Alert, Version, StateName, State0), - {stop, normal, State0} - end; - -handle_event(#ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, - StateName, State0) -> - case application_data(Data, State0) of - Stop = {stop,_,_} -> - Stop; - State -> - {next_state, StateName, State} - end; - -handle_event(#ssl_tls{type = ?CHANGE_CIPHER_SPEC, fragment = <<1>>} = - _ChangeCipher, - StateName, - State = #state{connection_states = ConnectionStates0}) -> - ?DBG_TERM(_ChangeCipher), - ConnectionStates1 = - ssl_record:activate_pending_connection_state(ConnectionStates0, read), - {next_state, StateName, - next_record(State#state{connection_states = ConnectionStates1})}; - -handle_event(#ssl_tls{type = ?ALERT, fragment = Data}, StateName, State) -> - Alerts = decode_alerts(Data), - ?DBG_TERM(Alerts), - [alert_event(A) || A <- Alerts], - {next_state, StateName, State}; - -handle_event(#alert{level = ?FATAL} = Alert, connection, - #state{from = From, user_application = {_Mon, Pid}, - log_alert = Log, - host = Host, port = Port, session = Session, - role = Role, socket_options = Opts} = State) -> - invalidate_session(Role, Host, Port, Session), - log_alert(Log, connection, Alert), - alert_user(Opts#socket_options.active, Pid, From, Alert, Role), - {stop, normal, State}; -handle_event(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert, - connection, #state{from = From, - role = Role, - user_application = {_Mon, Pid}, - socket_options = Opts} = State) -> - alert_user(Opts#socket_options.active, Pid, From, Alert, Role), - {stop, normal, State}; - -handle_event(#alert{level = ?FATAL} = Alert, StateName, - #state{from = From, host = Host, port = Port, session = Session, - log_alert = Log, role = Role} = State) -> - invalidate_session(Role, Host, Port, Session), - log_alert(Log, StateName, Alert), - alert_user(From, Alert, Role), - {stop, normal, State}; -handle_event(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert, - _, #state{from = From, role = Role} = State) -> - alert_user(From, Alert, Role), - {stop, normal, State}; - -handle_event(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, - #state{log_alert = Log, renegotiation = {true, internal}} = State) -> - log_alert(Log, StateName, Alert), - {stop, normal, State}; - -handle_event(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, - #state{log_alert = Log, renegotiation = {true, From}} = State) -> - log_alert(Log, StateName, Alert), - gen_fsm:reply(From, {error, renegotiation_rejected}), - {next_state, connection, next_record(State)}; - -handle_event(#alert{level = ?WARNING, description = ?USER_CANCELED} = Alert, StateName, - #state{log_alert = Log} = State) -> - log_alert(Log, StateName, Alert), - {next_state, StateName, next_record(State)}. +handle_event(_Event, StateName, State) -> + {next_state, StateName, State, get_timeout(State)}. %%-------------------------------------------------------------------- -%% Function: -%% handle_sync_event(Event, From, StateName, -%% State) -> {next_state, NextStateName, NextState} | -%% {next_state, NextStateName, NextState, -%% Timeout} | -%% {reply, Reply, NextStateName, NextState}| -%% {reply, Reply, NextStateName, NextState, -%% Timeout} | -%% {stop, Reason, NewState} | -%% {stop, Reason, Reply, NewState} +-spec handle_sync_event(term(), from(), state_name(), #state{}) -> + gen_fsm_state_return() | + {reply, reply(), state_name(), #state{}} | + {reply, reply(), state_name(), #state{}, timeout()} | + {stop, reason(), reply(), #state{}}. +%% %% Description: Whenever a gen_fsm receives an event sent using %% gen_fsm:sync_send_all_state_event/2,3, this function is called to handle %% the event. @@ -811,7 +753,8 @@ handle_sync_event({application_data, Data0}, From, connection, {Msgs, [], ConnectionStates} -> Result = Transport:send(Socket, Msgs), {reply, Result, - connection, State#state{connection_states = ConnectionStates}}; + connection, State#state{connection_states = ConnectionStates}, + get_timeout(State)}; {Msgs, RestData, ConnectionStates} -> if Msgs =/= [] -> @@ -824,58 +767,93 @@ handle_sync_event({application_data, Data0}, From, connection, renegotiation = {true, internal}}) end catch throw:Error -> - {reply, Error, connection, State} + {reply, Error, connection, State, get_timeout(State)} end; handle_sync_event({application_data, Data}, From, StateName, #state{send_queue = Queue} = State) -> %% In renegotiation priorities handshake, send data when handshake is finished - {next_state, StateName, State#state{send_queue = queue:in({From, Data}, Queue)}}; -handle_sync_event(started, From, StateName, State) -> - {next_state, StateName, State#state{from = From}}; - -handle_sync_event(close, From, _StateName, State) -> - {stop, normal, ok, State#state{from = From}}; - -handle_sync_event({shutdown, How}, From, StateName, - #state{transport_cb = CbModule, + {next_state, StateName, + State#state{send_queue = queue:in({From, Data}, Queue)}, + get_timeout(State)}; + +handle_sync_event(start, From, hello, State) -> + hello(start, State#state{from = From}); + +%% The two clauses below could happen if a server upgrades a socket in +%% active mode. Note that in this case we are lucky that +%% controlling_process has been evalueated before receiving handshake +%% messages from client. The server should put the socket in passive +%% mode before telling the client that it is willing to upgrade +%% and before calling ssl:ssl_accept/2. These clauses are +%% here to make sure it is the users problem and not owers if +%% they upgrade a active socket. +handle_sync_event(start, _, connection, State) -> + {reply, connected, connection, State, get_timeout(State)}; +handle_sync_event(start, From, StateName, State) -> + {next_state, StateName, State#state{from = From}, get_timeout(State)}; + +handle_sync_event(close, _, StateName, State) -> + %% Run terminate before returning + %% so that the reuseaddr inet-option will work + %% as intended. + (catch terminate(user_close, StateName, State)), + {stop, normal, ok, State#state{terminated = true}}; + +handle_sync_event({shutdown, How0}, _, StateName, + #state{transport_cb = Transport, + negotiated_version = Version, + connection_states = ConnectionStates, socket = Socket} = State) -> - case CbModule:shutdown(Socket, How) of + case How0 of + How when How == write; How == both -> + Alert = ?ALERT_REC(?WARNING, ?CLOSE_NOTIFY), + {BinMsg, _} = + encode_alert(Alert, Version, ConnectionStates), + Transport:send(Socket, BinMsg); + _ -> + ok + end, + + case Transport:shutdown(Socket, How0) of ok -> - {reply, ok, StateName, State}; + {reply, ok, StateName, State, get_timeout(State)}; Error -> - {stop, normal, Error, State#state{from = From}} + {stop, normal, Error, State} end; handle_sync_event({recv, N}, From, connection = StateName, State0) -> passive_receive(State0#state{bytes_to_read = N, from = From}, StateName); %% Doing renegotiate wait with handling request until renegotiate is -%% finished. Will be handled by next_state_connection/1. +%% finished. Will be handled by next_state_connection/2. handle_sync_event({recv, N}, From, StateName, State) -> - {next_state, StateName, State#state{bytes_to_read = N, from = From, - recv_during_renegotiation = true}}; + {next_state, StateName, + State#state{bytes_to_read = N, from = From, + recv_during_renegotiation = true}, + get_timeout(State)}; handle_sync_event({new_user, User}, _From, StateName, State =#state{user_application = {OldMon, _}}) -> NewMon = erlang:monitor(process, User), erlang:demonitor(OldMon, [flush]), - {reply, ok, StateName, State#state{user_application = {NewMon,User}}}; + {reply, ok, StateName, State#state{user_application = {NewMon,User}}, + get_timeout(State)}; handle_sync_event({get_opts, OptTags}, _From, StateName, #state{socket = Socket, socket_options = SockOpts} = State) -> OptsReply = get_socket_opts(Socket, OptTags, SockOpts, []), - {reply, OptsReply, StateName, State}; + {reply, OptsReply, StateName, State, get_timeout(State)}; handle_sync_event(sockname, _From, StateName, #state{socket = Socket} = State) -> SockNameReply = inet:sockname(Socket), - {reply, SockNameReply, StateName, State}; + {reply, SockNameReply, StateName, State, get_timeout(State)}; handle_sync_event(peername, _From, StateName, #state{socket = Socket} = State) -> PeerNameReply = inet:peername(Socket), - {reply, PeerNameReply, StateName, State}; + {reply, PeerNameReply, StateName, State, get_timeout(State)}; handle_sync_event({set_opts, Opts0}, _From, StateName, #state{socket_options = Opts1, @@ -885,27 +863,38 @@ handle_sync_event({set_opts, Opts0}, _From, StateName, State1 = State0#state{socket_options = Opts}, if Opts#socket_options.active =:= false -> - {reply, ok, StateName, State1}; + {reply, ok, StateName, State1, get_timeout(State1)}; Buffer =:= <<>>, Opts1#socket_options.active =:= false -> %% Need data, set active once - {reply, ok, StateName, next_record_if_active(State1)}; + {Record, State2} = next_record_if_active(State1), + case next_state(StateName, Record, State2) of + {next_state, StateName, State, Timeout} -> + {reply, ok, StateName, State, Timeout}; + {stop, Reason, State} -> + {stop, Reason, State} + end; Buffer =:= <<>> -> %% Active once already set - {reply, ok, StateName, State1}; + {reply, ok, StateName, State1, get_timeout(State1)}; true -> case application_data(<<>>, State1) of Stop = {stop,_,_} -> Stop; - State -> - {reply, ok, StateName, State} + {Record, State2} -> + case next_state(StateName, Record, State2) of + {next_state, StateName, State, Timeout} -> + {reply, ok, StateName, State, Timeout}; + {stop, Reason, State} -> + {stop, Reason, State} + end end - end; + end; handle_sync_event(renegotiate, From, connection, State) -> renegotiate(State#state{renegotiation = {true, From}}); handle_sync_event(renegotiate, _, StateName, State) -> - {reply, {error, already_renegotiating}, StateName, State}; + {reply, {error, already_renegotiating}, StateName, State, get_timeout(State)}; handle_sync_event(info, _, StateName, #state{negotiated_version = Version, @@ -913,101 +902,125 @@ handle_sync_event(info, _, StateName, AtomVersion = ssl_record:protocol_version(Version), {reply, {ok, {AtomVersion, ssl_cipher:suite_definition(Suite)}}, - StateName, State}; + StateName, State, get_timeout(State)}; handle_sync_event(session_info, _, StateName, #state{session = #session{session_id = Id, cipher_suite = Suite}} = State) -> {reply, [{session_id, Id}, {cipher_suite, ssl_cipher:suite_definition(Suite)}], - StateName, State}; + StateName, State, get_timeout(State)}; handle_sync_event(peer_certificate, _, StateName, #state{session = #session{peer_certificate = Cert}} = State) -> - {reply, {ok, Cert}, StateName, State}. + {reply, {ok, Cert}, StateName, State, get_timeout(State)}. %%-------------------------------------------------------------------- -%% Function: -%% handle_info(Info,StateName,State)-> {next_state, NextStateName, NextState}| -%% {next_state, NextStateName, NextState, -%% Timeout} | -%% {stop, Reason, NewState} +-spec handle_info(msg(),state_name(), #state{}) -> + {next_state, state_name(), #state{}}| + {next_state, state_name(), #state{}, timeout()} | + {stop, reason(), #state{}}. +%% %% 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). %%-------------------------------------------------------------------- %% raw data from TCP, unpack records -handle_info({Protocol, _, Data}, StateName, State = +handle_info({Protocol, _, Data}, StateName, #state{data_tag = Protocol, - negotiated_version = Version, - tls_record_buffer = Buf0, - tls_cipher_texts = CT0}) -> - case ssl_record:get_tls_records(Data, Buf0) of - {Records, Buf1} -> - CT1 = CT0 ++ Records, - {next_state, StateName, - next_record(State#state{tls_record_buffer = Buf1, - tls_cipher_texts = CT1})}; + negotiated_version = Version} = State0) -> + case next_tls_record(Data, State0) of + {Record, State} -> + next_state(StateName, Record, State); #alert{} = Alert -> - handle_own_alert(Alert, Version, StateName, State), - {stop, normal, State} + handle_own_alert(Alert, Version, StateName, State0), + {stop, normal, State0} end; handle_info({CloseTag, Socket}, _StateName, #state{socket = Socket, close_tag = CloseTag, - negotiated_version = Version, host = Host, - port = Port, socket_options = Opts, + negotiated_version = Version, + socket_options = Opts, user_application = {_Mon,Pid}, from = From, - role = Role, session = Session} = State) -> - %% Debug option maybe, the user do NOT want to see these in their logs - %% error_logger:info_report("SSL: Peer did not send close notify alert."), + role = Role} = 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 Version of {1, N} when N >= 1 -> ok; _ -> - invalidate_session(Role, Host, Port, Session) + %% 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, alert_user(Opts#socket_options.active, Pid, From, ?ALERT_REC(?WARNING, ?CLOSE_NOTIFY), Role), {stop, normal, State}; +handle_info({ErrorTag, Socket, econnaborted}, StateName, + #state{socket = Socket, from = User, role = Role, + error_tag = ErrorTag} = State) when StateName =/= connection -> + alert_user(User, ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE), Role), + {stop, normal, State}; + +handle_info({ErrorTag, Socket, Reason}, _, + #state{socket = Socket, from = User, + role = Role, error_tag = ErrorTag} = State) -> + Report = io_lib:format("SSL: Socket error: ~p ~n", [Reason]), + error_logger:info_report(Report), + alert_user(User, ?ALERT_REC(?FATAL, ?CLOSE_NOTIFY), Role), + {stop, normal, State}; + handle_info({'DOWN', MonitorRef, _, _, _}, _, State = #state{user_application={MonitorRef,_Pid}}) -> {stop, normal, State}; -handle_info(A, StateName, State) -> - io:format("SSL: Bad info (state ~w): ~w\n", [StateName, A]), - {stop, bad_info, State}. +handle_info(Msg, StateName, State) -> + Report = io_lib:format("SSL: Got unexpected info: ~p ~n", [Msg]), + error_logger:info_report(Report), + {next_state, StateName, State, get_timeout(State)}. %%-------------------------------------------------------------------- -%% Function: terminate(Reason, StateName, State) -> void() +-spec terminate(reason(), state_name(), #state{}) -> term(). +%% %% 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, connection, #state{negotiated_version = Version, +terminate(_, _, #state{terminated = true}) -> + %% Happens when user closes the connection using ssl:close/1 + %% we want to guarantee that Transport:close has been called + %% when ssl:close/1 returns. + ok; +terminate(Reason, connection, #state{negotiated_version = Version, connection_states = ConnectionStates, transport_cb = Transport, socket = Socket, send_queue = SendQueue, renegotiation = Renegotiate}) -> notify_senders(SendQueue), notify_renegotiater(Renegotiate), - {BinAlert, _} = encode_alert(?ALERT_REC(?WARNING,?CLOSE_NOTIFY), - Version, ConnectionStates), + BinAlert = terminate_alert(Reason, Version, ConnectionStates), Transport:send(Socket, BinAlert), + workaround_transport_delivery_problems(Socket, Transport, Reason), Transport:close(Socket); -terminate(_Reason, _StateName, #state{transport_cb = Transport, +terminate(Reason, _StateName, #state{transport_cb = Transport, socket = Socket, send_queue = SendQueue, renegotiation = Renegotiate}) -> notify_senders(SendQueue), notify_renegotiater(Renegotiate), + workaround_transport_delivery_problems(Socket, Transport, Reason), Transport:close(Socket). %%-------------------------------------------------------------------- -%% Function: +-spec code_change(term(), state_name(), #state{}, list()) -> {ok, state_name(), #state{}}. +%% %% code_change(OldVsn, StateName, State, Extra) -> {ok, StateName, NewState} %% Description: Convert process state when code is changed %%-------------------------------------------------------------------- @@ -1017,126 +1030,127 @@ code_change(_OldVsn, StateName, State, _Extra) -> %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- -start_fsm(Role, Host, Port, Socket, Opts, User, {CbModule, _,_} = CbInfo, +start_fsm(Role, Host, Port, Socket, Opts, User, {CbModule, _,_, _} = CbInfo, Timeout) -> - case ssl_connection_sup:start_child([Role, Host, Port, Socket, - Opts, User, CbInfo]) of - {ok, Pid} -> - CbModule:controlling_process(Socket, Pid), - send_event(Pid, socket_control), - case sync_send_all_state_event(Pid, started, Timeout) of - connected -> - {ok, sslsocket(Pid)}; - {error, Reason} -> - {error, Reason} - end; - {error, Reason} -> - {error, Reason} + try + {ok, Pid} = ssl_connection_sup:start_child([Role, Host, Port, Socket, + Opts, User, CbInfo]), + {ok, SslSocket} = socket_control(Socket, Pid, CbModule), + ok = handshake(SslSocket, Timeout), + {ok, SslSocket} + catch + error:{badmatch, {error, _} = Error} -> + Error end. - + ssl_init(SslOpts, Role) -> {ok, CertDbRef, CacheRef, OwnCert} = init_certificates(SslOpts, Role), PrivateKey = init_private_key(SslOpts#ssl_options.key, SslOpts#ssl_options.keyfile, SslOpts#ssl_options.password, Role), - DHParams = init_diffie_hellman(SslOpts#ssl_options.dhfile, Role), + DHParams = init_diffie_hellman(SslOpts#ssl_options.dh, SslOpts#ssl_options.dhfile, Role), {ok, CertDbRef, CacheRef, OwnCert, PrivateKey, DHParams}. -init_certificates(#ssl_options{cacertfile = CACertFile, - certfile = CertFile}, Role) -> - - case ssl_manager:connection_init(CACertFile, Role) of - {ok, CertDbRef, CacheRef} -> - init_certificates(CertDbRef, CacheRef, CertFile, Role); - {error, {badmatch, _Error}} -> - Report = io_lib:format("SSL: Error ~p Initializing: ~p ~n", - [_Error, CACertFile]), - error_logger:error_report(Report), - throw(ecacertfile); - {error, _Error} -> - Report = io_lib:format("SSL: Error ~p Initializing: ~p ~n", - [_Error, CACertFile]), - error_logger:error_report(Report), - throw(ecacertfile) - end. -init_certificates(CertDbRef, CacheRef, CertFile, client) -> +init_certificates(#ssl_options{cacerts = CaCerts, + cacertfile = CACertFile, + certfile = CertFile, + cert = Cert}, Role) -> + {ok, CertDbRef, CacheRef} = + try + Certs = case CaCerts of + undefined -> + CACertFile; + _ -> + {der, CaCerts} + end, + {ok, _, _} = ssl_manager:connection_init(Certs, Role) + catch + Error:Reason -> + handle_file_error(?LINE, Error, Reason, CACertFile, ecacertfile, + erlang:get_stacktrace()) + end, + init_certificates(Cert, CertDbRef, CacheRef, CertFile, Role). + +init_certificates(undefined, CertDbRef, CacheRef, "", _) -> + {ok, CertDbRef, CacheRef, undefined}; + +init_certificates(undefined, CertDbRef, CacheRef, CertFile, client) -> try [OwnCert] = ssl_certificate:file_to_certificats(CertFile), {ok, CertDbRef, CacheRef, OwnCert} - catch _E:_R -> + catch _Error:_Reason -> {ok, CertDbRef, CacheRef, undefined} end; -init_certificates(CertDbRef, CacheRef, CertFile, server) -> - try +init_certificates(undefined, CertDbRef, CacheRef, CertFile, server) -> + try [OwnCert] = ssl_certificate:file_to_certificats(CertFile), {ok, CertDbRef, CacheRef, OwnCert} - catch - _E:{badmatch, _R={error,_}} -> - Report = io_lib:format("SSL: ~p: ~p:~p ~s~n ~p~n", - [?LINE, _E,_R, CertFile, - erlang:get_stacktrace()]), - error_logger:error_report(Report), - throw(ecertfile); - _E:_R -> - Report = io_lib:format("SSL: ~p: ~p:~p ~s~n ~p~n", - [?LINE, _E,_R, CertFile, - erlang:get_stacktrace()]), - error_logger:error_report(Report), - throw(ecertfile) - end. - -init_private_key(undefined, "", _Password, client) -> + catch + Error:Reason -> + handle_file_error(?LINE, Error, Reason, CertFile, ecertfile, + erlang:get_stacktrace()) + end; +init_certificates(Cert, CertDbRef, CacheRef, _, _) -> + {ok, CertDbRef, CacheRef, Cert}. + +init_private_key(undefined, "", _Password, _Client) -> undefined; init_private_key(undefined, KeyFile, Password, _) -> - try - {ok, List} = ssl_manager:cache_pem_file(KeyFile), - [Der] = [Der || Der = {PKey, _ , _} <- List, - PKey =:= rsa_private_key orelse - PKey =:= dsa_private_key], - {ok, Decoded} = public_key:decode_private_key(Der,Password), - Decoded - catch - _E:{badmatch, _R={error,_}} -> - Report = io_lib:format("SSL: ~p: ~p:~p ~s~n ~p~n", - [?LINE, _E,_R, KeyFile, - erlang:get_stacktrace()]), - error_logger:error_report(Report), - throw(ekeyfile); - _E:_R -> - Report = io_lib:format("SSL: ~p: ~p:~p ~s~n ~p~n", - [?LINE, _E,_R, KeyFile, - erlang:get_stacktrace()]), - error_logger:error_report(Report), - throw(ekeyfile) + try + {ok, List} = ssl_manager:cache_pem_file(KeyFile), + [PemEntry] = [PemEntry || PemEntry = {PKey, _ , _} <- List, + PKey =:= 'RSAPrivateKey' orelse + PKey =:= 'DSAPrivateKey'], + public_key:pem_entry_decode(PemEntry, Password) + catch + Error:Reason -> + handle_file_error(?LINE, Error, Reason, KeyFile, ekeyfile, + erlang:get_stacktrace()) end; -init_private_key(PrivateKey, _, _,_) -> - PrivateKey. -init_diffie_hellman(_, client) -> +init_private_key({rsa, PrivateKey}, _, _,_) -> + public_key:der_decode('RSAPrivateKey', PrivateKey); +init_private_key({dsa, PrivateKey},_,_,_) -> + public_key:der_decode('DSAPrivateKey', PrivateKey). + +-spec(handle_file_error(_,_,_,_,_,_) -> no_return()). +handle_file_error(Line, Error, {badmatch, Reason}, File, Throw, Stack) -> + file_error(Line, Error, Reason, File, Throw, Stack); +handle_file_error(Line, Error, Reason, File, Throw, Stack) -> + file_error(Line, Error, Reason, File, Throw, Stack). + +-spec(file_error(_,_,_,_,_,_) -> no_return()). +file_error(Line, Error, Reason, File, Throw, Stack) -> + Report = io_lib:format("SSL: ~p: ~p:~p ~s~n ~p~n", + [Line, Error, Reason, File, Stack]), + error_logger:error_report(Report), + throw(Throw). + +init_diffie_hellman(Params, _,_) when is_binary(Params)-> + public_key:der_decode('DHParameter', Params); +init_diffie_hellman(_,_, client) -> undefined; -init_diffie_hellman(undefined, _) -> +init_diffie_hellman(_,undefined, _) -> ?DEFAULT_DIFFIE_HELLMAN_PARAMS; -init_diffie_hellman(DHParamFile, server) -> - {ok, List} = ssl_manager:cache_pem_file(DHParamFile), - case [Der || Der = {dh_params, _ , _} <- List] of - [Der] -> - {ok, Decoded} = public_key:decode_dhparams(Der), - Decoded; - [] -> - ?DEFAULT_DIFFIE_HELLMAN_PARAMS +init_diffie_hellman(_, DHParamFile, server) -> + try + {ok, List} = ssl_manager:cache_pem_file(DHParamFile), + case [Entry || Entry = {'DHParameter', _ , _} <- List] of + [Entry] -> + public_key:pem_entry_decode(Entry); + [] -> + ?DEFAULT_DIFFIE_HELLMAN_PARAMS + end + catch + Error:Reason -> + handle_file_error(?LINE, Error, Reason, + DHParamFile, edhfile, erlang:get_stacktrace()) end. -send_event(FsmPid, Event) -> - gen_fsm:send_event(FsmPid, Event). - - -send_all_state_event(FsmPid, Event) -> - gen_fsm:send_all_state_event(FsmPid, Event). - sync_send_all_state_event(FsmPid, Event) -> - sync_send_all_state_event(FsmPid, Event, ?DEFAULT_TIMEOUT). + sync_send_all_state_event(FsmPid, Event, infinity). sync_send_all_state_event(FsmPid, Event, Timeout) -> try gen_fsm:sync_send_all_state_event(FsmPid, Event, Timeout) @@ -1146,29 +1160,28 @@ sync_send_all_state_event(FsmPid, Event, Timeout) -> exit:{timeout, _} -> {error, timeout}; exit:{normal, _} -> + {error, closed}; + exit:{shutdown, _} -> {error, closed} end. -%% Events: #alert{} -alert_event(Alert) -> - send_all_state_event(self(), Alert). - %% We do currently not support cipher suites that use fixed DH. %% If we want to implement that we should add a code %% here to extract DH parameters form cert. handle_peer_cert(PeerCert, PublicKeyInfo, #state{session = Session} = State0) -> - State = State0#state{session = + State1 = State0#state{session = Session#session{peer_certificate = PeerCert}, public_key_info = PublicKeyInfo}, - {next_state, certify, next_record(State)}. + {Record, State} = next_record(State1), + next_state(certify, Record, State). certify_client(#state{client_certificate_requested = true, role = client, connection_states = ConnectionStates0, transport_cb = Transport, negotiated_version = Version, cert_db_ref = CertDbRef, - own_cert = OwnCert, + session = #session{own_certificate = OwnCert}, socket = Socket, tls_handshake_hashes = Hashes0} = State) -> Certificate = ssl_handshake:certificate(OwnCert, CertDbRef, client), @@ -1184,91 +1197,125 @@ verify_client_cert(#state{client_certificate_requested = true, role = client, connection_states = ConnectionStates0, transport_cb = Transport, negotiated_version = Version, - own_cert = OwnCert, socket = Socket, - key_algorithm = KeyAlg, private_key = PrivateKey, - session = #session{master_secret = MasterSecret}, + session = #session{master_secret = MasterSecret, + own_certificate = OwnCert}, tls_handshake_hashes = Hashes0} = State) -> + case ssl_handshake:client_certificate_verify(OwnCert, MasterSecret, - Version, KeyAlg, - PrivateKey, Hashes0) of - ignore -> %% No key or cert or fixed_diffie_hellman - State; - Verified -> + Version, PrivateKey, Hashes0) of + #certificate_verify{} = Verified -> {BinVerified, ConnectionStates1, Hashes1} = - encode_handshake(Verified, KeyAlg, Version, + encode_handshake(Verified, Version, ConnectionStates0, Hashes0), Transport:send(Socket, BinVerified), State#state{connection_states = ConnectionStates1, - tls_handshake_hashes = Hashes1} + tls_handshake_hashes = Hashes1}; + ignore -> + State; + #alert{} = Alert -> + handle_own_alert(Alert, Version, certify, State) + end; verify_client_cert(#state{client_certificate_requested = false} = State) -> State. do_server_hello(Type, #state{negotiated_version = Version, - session = Session, - connection_states = ConnectionStates0} + session = #session{session_id = SessId} = Session, + connection_states = ConnectionStates0, + renegotiation = {Renegotiation, _}} = State0) when is_atom(Type) -> + ServerHello = - ssl_handshake:server_hello(Session#session.session_id, Version, - ConnectionStates0), - State = server_hello(ServerHello, State0), + ssl_handshake:server_hello(SessId, Version, + ConnectionStates0, Renegotiation), + State1 = server_hello(ServerHello, State0), case Type of new -> - do_server_hello(ServerHello, State); + new_server_hello(ServerHello, State1); resumed -> + ConnectionStates1 = State1#state.connection_states, case ssl_handshake:master_secret(Version, Session, - ConnectionStates0, server) of - {_, ConnectionStates1} -> - State1 = State#state{connection_states=ConnectionStates1, - session = Session}, + ConnectionStates1, server) of + {_, ConnectionStates2} -> + State2 = State1#state{connection_states=ConnectionStates2, + session = Session}, {ConnectionStates, Hashes} = - finalize_server_handshake(State1), - Resumed = State1#state{connection_states = - ConnectionStates, - tls_handshake_hashes = Hashes}, - {next_state, abbreviated, next_record(Resumed)}; + finalize_handshake(State2, abbreviated), + State3 = State2#state{connection_states = + ConnectionStates, + tls_handshake_hashes = Hashes}, + {Record, State} = next_record(State3), + next_state(abbreviated, Record, State); #alert{} = Alert -> - handle_own_alert(Alert, Version, hello, State), - {stop, normal, State} + handle_own_alert(Alert, Version, hello, State1), + {stop, normal, State1} end - end; + end. -do_server_hello(#server_hello{cipher_suite = CipherSuite, +new_server_hello(#server_hello{cipher_suite = CipherSuite, compression_method = Compression, session_id = SessionId}, #state{session = Session0, negotiated_version = Version} = State0) -> try server_certify_and_key_exchange(State0) of #state{} = State1 -> - State = server_hello_done(State1), + State2 = server_hello_done(State1), Session = Session0#session{session_id = SessionId, cipher_suite = CipherSuite, compression_method = Compression}, - {next_state, certify, State#state{session = Session}} + {Record, State} = next_record(State2#state{session = Session}), + next_state(certify, Record, State) catch #alert{} = Alert -> handle_own_alert(Alert, Version, hello, State0), {stop, normal, State0} end. +handle_new_session(NewId, CipherSuite, Compression, #state{session = Session0} = State0) -> + Session = Session0#session{session_id = NewId, + cipher_suite = CipherSuite, + compression_method = Compression}, + {Record, State} = next_record(State0#state{session = Session}), + next_state(certify, Record, State). + +handle_resumed_session(SessId, #state{connection_states = ConnectionStates0, + negotiated_version = Version, + host = Host, port = Port, + session_cache = Cache, + session_cache_cb = CacheCb} = State0) -> + Session = CacheCb:lookup(Cache, {{Host, Port}, SessId}), + case ssl_handshake:master_secret(Version, Session, + ConnectionStates0, client) of + {_, ConnectionStates1} -> + {Record, State} = + next_record(State0#state{ + connection_states = ConnectionStates1, + session = Session}), + next_state(abbreviated, Record, State); + #alert{} = Alert -> + handle_own_alert(Alert, Version, hello, State0), + {stop, normal, State0} + end. + + client_certify_and_key_exchange(#state{negotiated_version = Version} = State0) -> try do_client_certify_and_key_exchange(State0) of State1 = #state{} -> - {ConnectionStates, Hashes} = finalize_client_handshake(State1), - State = State1#state{connection_states = ConnectionStates, + {ConnectionStates, Hashes} = finalize_handshake(State1, certify), + State2 = State1#state{connection_states = ConnectionStates, %% Reinitialize client_certificate_requested = false, tls_handshake_hashes = Hashes}, - {next_state, cipher, next_record(State)} - + {Record, State} = next_record(State2), + next_state(cipher, Record, State) catch #alert{} = Alert -> - handle_own_alert(Alert, Version, certify_foo, State0), + handle_own_alert(Alert, Version, client_certify_and_key_exchange, State0), {stop, normal, State0} end. @@ -1288,8 +1335,7 @@ server_hello(ServerHello, #state{transport_cb = Transport, connection_states = ConnectionStates0, tls_handshake_hashes = Hashes0} = State) -> CipherSuite = ServerHello#server_hello.cipher_suite, - {KeyAlgorithm, _, _, _} = ssl_cipher:suite_definition(CipherSuite), - %% Version = ServerHello#server_hello.server_version, TODO ska kontrolleras + {KeyAlgorithm, _, _} = ssl_cipher:suite_definition(CipherSuite), {BinMsg, ConnectionStates1, Hashes1} = encode_handshake(ServerHello, Version, ConnectionStates0, Hashes0), Transport:send(Socket, BinMsg), @@ -1301,25 +1347,26 @@ server_hello_done(#state{transport_cb = Transport, socket = Socket, negotiated_version = Version, connection_states = ConnectionStates, - tls_handshake_hashes = Hashes} = State0) -> + tls_handshake_hashes = Hashes} = State) -> HelloDone = ssl_handshake:server_hello_done(), - + {BinHelloDone, NewConnectionStates, NewHashes} = encode_handshake(HelloDone, Version, ConnectionStates, Hashes), Transport:send(Socket, BinHelloDone), - State = State0#state{connection_states = NewConnectionStates, - tls_handshake_hashes = NewHashes}, - next_record(State). - -certify_server(#state{transport_cb = Transport, - socket = Socket, - negotiated_version = Version, - connection_states = ConnectionStates, - tls_handshake_hashes = Hashes, - cert_db_ref = CertDbRef, - own_cert = OwnCert} = State) -> + State#state{connection_states = NewConnectionStates, + tls_handshake_hashes = NewHashes}. +certify_server(#state{key_algorithm = dh_anon} = State) -> + State; + +certify_server(#state{transport_cb = Transport, + socket = Socket, + negotiated_version = Version, + connection_states = ConnectionStates, + tls_handshake_hashes = Hashes, + cert_db_ref = CertDbRef, + session = #session{own_certificate = OwnCert}} = State) -> case ssl_handshake:certificate(OwnCert, CertDbRef, server) of CertMsg = #certificate{} -> {BinCertMsg, NewConnectionStates, NewHashes} = @@ -1332,20 +1379,10 @@ certify_server(#state{transport_cb = Transport, throw(Alert) end. -key_exchange(#state{role = server, key_algorithm = Algo} = State) - when Algo == rsa; - Algo == dh_dss; - Algo == dh_rsa -> +key_exchange(#state{role = server, key_algorithm = rsa} = State) -> State; - -%key_exchange(#state{role = server, key_algorithm = rsa_export} = State) -> - %% TODO when the public key in the server certificate is - %% less than or equal to 512 bits in length dont send key_exchange - %% but do it otherwise -% State; - key_exchange(#state{role = server, key_algorithm = Algo, - diffie_hellman_params = Params, + diffie_hellman_params = #'DHParameter'{prime = P, base = G} = Params, private_key = PrivateKey, connection_states = ConnectionStates0, negotiated_version = Version, @@ -1354,11 +1391,9 @@ key_exchange(#state{role = server, key_algorithm = Algo, transport_cb = Transport } = State) when Algo == dhe_dss; - Algo == dhe_dss_export; Algo == dhe_rsa; - Algo == dhe_rsa_export -> - - Keys = public_key:gen_key(Params), + Algo == dh_anon -> + Keys = crypto:dh_generate_key([crypto:mpint(P), crypto:mpint(G)]), ConnectionState = ssl_record:pending_connection_state(ConnectionStates0, read), SecParams = ConnectionState#connection_state.security_parameters, @@ -1375,11 +1410,6 @@ key_exchange(#state{role = server, key_algorithm = Algo, diffie_hellman_keys = Keys, tls_handshake_hashes = Hashes1}; - -%% key_algorithm = dh_anon is not supported. Should be by default disabled -%% if support is implemented and then we need a key_exchange clause for it -%% here. - key_exchange(#state{role = client, connection_states = ConnectionStates0, key_algorithm = rsa, @@ -1394,7 +1424,6 @@ key_exchange(#state{role = client, Transport:send(Socket, BinMsg), State#state{connection_states = ConnectionStates1, tls_handshake_hashes = Hashes1}; - key_exchange(#state{role = client, connection_states = ConnectionStates0, key_algorithm = Algorithm, @@ -1403,32 +1432,13 @@ key_exchange(#state{role = client, socket = Socket, transport_cb = Transport, tls_handshake_hashes = Hashes0} = State) when Algorithm == dhe_dss; - Algorithm == dhe_dss_export; Algorithm == dhe_rsa; - Algorithm == dhe_rsa_export -> + Algorithm == dh_anon -> Msg = ssl_handshake:key_exchange(client, {dh, DhPubKey}), {BinMsg, ConnectionStates1, Hashes1} = encode_handshake(Msg, Version, ConnectionStates0, Hashes0), Transport:send(Socket, BinMsg), State#state{connection_states = ConnectionStates1, - tls_handshake_hashes = Hashes1}; - -key_exchange(#state{role = client, - connection_states = ConnectionStates0, - key_algorithm = Algorithm, - negotiated_version = Version, - client_certificate_requested = ClientCertReq, - own_cert = OwnCert, - diffie_hellman_keys = DhKeys, - socket = Socket, transport_cb = Transport, - tls_handshake_hashes = Hashes0} = State) - when Algorithm == dh_dss; - Algorithm == dh_rsa -> - Msg = dh_key_exchange(OwnCert, DhKeys, ClientCertReq), - {BinMsg, ConnectionStates1, Hashes1} = - encode_handshake(Msg, Version, ConnectionStates0, Hashes0), - Transport:send(Socket, BinMsg), - State#state{connection_states = ConnectionStates1, tls_handshake_hashes = Hashes1}. rsa_key_exchange(PremasterSecret, PublicKeyInfo = {Algorithm, _, _}) @@ -1442,17 +1452,6 @@ rsa_key_exchange(PremasterSecret, PublicKeyInfo = {Algorithm, _, _}) rsa_key_exchange(_, _) -> throw (?ALERT_REC(?FATAL,?HANDSHAKE_FAILURE)). -dh_key_exchange(OwnCert, DhKeys, true) -> - case public_key:pkix_is_fixed_dh_cert(OwnCert) of - true -> - ssl_handshake:key_exchange(client, fixed_diffie_hellman); - false -> - {DhPubKey, _} = DhKeys, - ssl_handshake:key_exchange(client, {dh, DhPubKey}) - end; -dh_key_exchange(_, {DhPubKey, _}, false) -> - ssl_handshake:key_exchange(client, {dh, DhPubKey}). - request_client_cert(#state{ssl_options = #ssl_options{verify = verify_peer}, connection_states = ConnectionStates0, cert_db_ref = CertDbRef, @@ -1471,45 +1470,52 @@ request_client_cert(#state{ssl_options = #ssl_options{verify = verify_none}} = State) -> State. -finalize_client_handshake(#state{connection_states = ConnectionStates0} - = State) -> - ConnectionStates1 = - cipher_protocol(State#state{connection_states = - ConnectionStates0}), - ConnectionStates2 = - ssl_record:activate_pending_connection_state(ConnectionStates1, +finalize_handshake(State, StateName) -> + ConnectionStates0 = cipher_protocol(State), + ConnectionStates = + ssl_record:activate_pending_connection_state(ConnectionStates0, write), - finished(State#state{connection_states = ConnectionStates2}). + finished(State#state{connection_states = ConnectionStates}, StateName). - -finalize_server_handshake(State) -> - ConnectionStates0 = cipher_protocol(State), - ConnectionStates = - ssl_record:activate_pending_connection_state(ConnectionStates0, - write), - finished(State#state{connection_states = ConnectionStates}). - -cipher_protocol(#state{connection_states = ConnectionStates, +cipher_protocol(#state{connection_states = ConnectionStates0, socket = Socket, negotiated_version = Version, transport_cb = Transport}) -> - {BinChangeCipher, NewConnectionStates} = + {BinChangeCipher, ConnectionStates} = encode_change_cipher(#change_cipher_spec{}, - Version, ConnectionStates), + Version, ConnectionStates0), Transport:send(Socket, BinChangeCipher), - NewConnectionStates. + ConnectionStates. finished(#state{role = Role, socket = Socket, negotiated_version = Version, transport_cb = Transport, session = Session, - connection_states = ConnectionStates, - tls_handshake_hashes = Hashes}) -> + connection_states = ConnectionStates0, + tls_handshake_hashes = Hashes0}, StateName) -> MasterSecret = Session#session.master_secret, - Finished = ssl_handshake:finished(Version, Role, MasterSecret, Hashes), - {BinFinished, NewConnectionStates, NewHashes} = - encode_handshake(Finished, Version, ConnectionStates, Hashes), + Finished = ssl_handshake:finished(Version, Role, MasterSecret, Hashes0), + ConnectionStates1 = save_verify_data(Role, Finished, ConnectionStates0, StateName), + {BinFinished, ConnectionStates, Hashes} = + encode_handshake(Finished, Version, ConnectionStates1, Hashes0), Transport:send(Socket, BinFinished), - {NewConnectionStates, NewHashes}. + {ConnectionStates, Hashes}. + +save_verify_data(client, #finished{verify_data = Data}, ConnectionStates, certify) -> + ssl_record:set_client_verify_data(current_write, Data, ConnectionStates); +save_verify_data(server, #finished{verify_data = Data}, ConnectionStates, cipher) -> + ssl_record:set_server_verify_data(current_both, Data, ConnectionStates); +save_verify_data(client, #finished{verify_data = Data}, ConnectionStates, abbreviated) -> + ssl_record:set_client_verify_data(current_both, Data, ConnectionStates); +save_verify_data(server, #finished{verify_data = Data}, ConnectionStates, abbreviated) -> + ssl_record:set_server_verify_data(current_write, Data, ConnectionStates). + +handle_server_key(#server_key_exchange{params = + #server_dh_params{dh_p = P, + dh_g = G, + dh_y = ServerPublicDhKey}, + signed_params = <<>>}, + #state{key_algorithm = dh_anon} = State) -> + dh_master_secret(P, G, ServerPublicDhKey, undefined, State); handle_server_key( #server_key_exchange{params = @@ -1517,17 +1523,16 @@ handle_server_key( dh_g = G, dh_y = ServerPublicDhKey}, signed_params = Signed}, - #state{session = Session, negotiated_version = Version, role = Role, - public_key_info = PubKeyInfo, + #state{public_key_info = PubKeyInfo, key_algorithm = KeyAlgo, - connection_states = ConnectionStates0} = State) -> + connection_states = ConnectionStates} = State) -> PLen = size(P), GLen = size(G), YLen = size(ServerPublicDhKey), ConnectionState = - ssl_record:pending_connection_state(ConnectionStates0, read), + ssl_record:pending_connection_state(ConnectionStates, read), SecParams = ConnectionState#connection_state.security_parameters, #security_parameters{client_random = ClientRandom, server_random = ServerRandom} = SecParams, @@ -1541,52 +1546,70 @@ handle_server_key( case verify_dh_params(Signed, Hash, PubKeyInfo) of true -> - PMpint = mpint_binary(P), - GMpint = mpint_binary(G), - Keys = {_, ClientDhPrivateKey} = - crypto:dh_generate_key([PMpint,GMpint]), - PremasterSecret = - crypto:dh_compute_key(mpint_binary(ServerPublicDhKey), - ClientDhPrivateKey, [PMpint, GMpint]), - case ssl_handshake:master_secret(Version, PremasterSecret, - ConnectionStates0, Role) of - {MasterSecret, ConnectionStates} -> - State#state{diffie_hellman_keys = Keys, - session = - Session#session{master_secret - = MasterSecret}, - connection_states = ConnectionStates}; - #alert{} = Alert -> - Alert - end; + dh_master_secret(P, G, ServerPublicDhKey, undefined, State); false -> - ?ALERT_REC(?FATAL,?HANDSHAKE_FAILURE) + ?ALERT_REC(?FATAL, ?DECRYPT_ERROR) end. -verify_dh_params(Signed, Hash, {?rsaEncryption, PubKey, _PubKeyparams}) -> +verify_dh_params(Signed, Hashes, {?rsaEncryption, PubKey, _PubKeyParams}) -> case public_key:decrypt_public(Signed, PubKey, [{rsa_pad, rsa_pkcs1_padding}]) of - Hash -> + Hashes -> true; _ -> false + end; +verify_dh_params(Signed, Hash, {?'id-dsa', PublicKey, PublicKeyParams}) -> + public_key:verify(Hash, none, Signed, {PublicKey, PublicKeyParams}). + +dh_master_secret(Prime, Base, PublicDhKey, undefined, State) -> + PMpint = mpint_binary(Prime), + GMpint = mpint_binary(Base), + Keys = {_, PrivateDhKey} = + crypto:dh_generate_key([PMpint,GMpint]), + dh_master_secret(PMpint, GMpint, PublicDhKey, PrivateDhKey, State#state{diffie_hellman_keys = Keys}); + +dh_master_secret(PMpint, GMpint, PublicDhKey, PrivateDhKey, + #state{session = Session, + negotiated_version = Version, role = Role, + connection_states = ConnectionStates0} = State) -> + PremasterSecret = + crypto:dh_compute_key(mpint_binary(PublicDhKey), PrivateDhKey, + [PMpint, GMpint]), + case ssl_handshake:master_secret(Version, PremasterSecret, + ConnectionStates0, Role) of + {MasterSecret, ConnectionStates} -> + State#state{ + session = + Session#session{master_secret = MasterSecret}, + connection_states = ConnectionStates}; + #alert{} = Alert -> + Alert end. +cipher_role(client, Data, Session, #state{connection_states = ConnectionStates0} = State) -> + ConnectionStates = ssl_record:set_server_verify_data(current_both, Data, ConnectionStates0), + next_state_connection(cipher, ack_connection(State#state{session = Session, + connection_states = ConnectionStates})); + +cipher_role(server, Data, Session, #state{connection_states = ConnectionStates0} = State) -> + ConnectionStates1 = ssl_record:set_client_verify_data(current_read, Data, ConnectionStates0), + {ConnectionStates, Hashes} = + finalize_handshake(State#state{connection_states = ConnectionStates1, + session = Session}, cipher), + next_state_connection(cipher, ack_connection(State#state{connection_states = + ConnectionStates, + session = Session, + tls_handshake_hashes = + Hashes})). encode_alert(#alert{} = Alert, Version, ConnectionStates) -> - ?DBG_TERM(Alert), ssl_record:encode_alert_record(Alert, Version, ConnectionStates). encode_change_cipher(#change_cipher_spec{}, Version, ConnectionStates) -> - ?DBG_TERM(#change_cipher_spec{}), ssl_record:encode_change_cipher_spec(Version, ConnectionStates). -encode_handshake(HandshakeRec, Version, ConnectionStates, Hashes) -> - encode_handshake(HandshakeRec, undefined, Version, - ConnectionStates, Hashes). - -encode_handshake(HandshakeRec, SigAlg, Version, ConnectionStates0, Hashes0) -> - ?DBG_TERM(HandshakeRec), - Frag = ssl_handshake:encode_handshake(HandshakeRec, Version, SigAlg), +encode_handshake(HandshakeRec, Version, ConnectionStates0, Hashes0) -> + Frag = ssl_handshake:encode_handshake(HandshakeRec, Version), Hashes1 = ssl_handshake:update_hashes(Hashes0, Frag), {E, ConnectionStates1} = ssl_record:encode_handshake(Frag, Version, ConnectionStates0), @@ -1622,14 +1645,14 @@ decode_alerts(<<>>, Acc) -> passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName) -> case Buffer of <<>> -> - State = next_record(State0), - {next_state, StateName, State}; + {Record, State} = next_record(State0), + next_state(StateName, Record, State); _ -> case application_data(<<>>, State0) of Stop = {stop, _, _} -> Stop; - State -> - {next_state, StateName, State} + {Record, State} -> + next_state(StateName, Record, State) end end. @@ -1644,8 +1667,6 @@ application_data(Data, #state{user_application = {_Mon, Pid}, true -> <<Buffer0/binary, Data/binary>> end, case get_data(SOpts, BytesToRead, Buffer1) of - {ok, <<>>, Buffer} -> % no reply, we need more data - next_record(State0#state{user_data_buffer = Buffer}); {ok, ClientData, Buffer} -> % Send data SocketOpt = deliver_app_data(SOpts, ClientData, Pid, From), State = State0#state{user_data_buffer = Buffer, @@ -1654,19 +1675,23 @@ application_data(Data, #state{user_application = {_Mon, Pid}, socket_options = SocketOpt }, if - SocketOpt#socket_options.active =:= false -> - State; %% Passive mode, wait for active once or recv - Buffer =:= <<>> -> %% Active and empty, get more data - next_record(State); - true -> %% We have more data - application_data(<<>>, State) + SocketOpt#socket_options.active =:= false; Buffer =:= <<>> -> + %% Passive mode, wait for active once or recv + %% Active and empty, get more data + next_record_if_active(State); + true -> %% We have more data + application_data(<<>>, State) end; + {more, Buffer} -> % no reply, we need more data + next_record(State0#state{user_data_buffer = Buffer}); {error,_Reason} -> %% Invalid packet in packet mode deliver_packet_error(SOpts, Buffer1, Pid, From), {stop, normal, State0} end. %% Picks ClientData +get_data(_, _, <<>>) -> + {more, <<>>}; get_data(#socket_options{active=Active, packet=Raw}, BytesToRead, Buffer) when Raw =:= raw; Raw =:= 0 -> %% Raw Mode if @@ -1679,13 +1704,13 @@ get_data(#socket_options{active=Active, packet=Raw}, BytesToRead, Buffer) {ok, Data, Rest}; true -> %% Passive Mode not enough data - {ok, <<>>, Buffer} + {more, Buffer} end; get_data(#socket_options{packet=Type, packet_size=Size}, _, Buffer) -> PacketOpts = [{packet_size, Size}], case decode_packet(Type, Buffer, PacketOpts) of {more, _} -> - {ok, <<>>, Buffer}; + {more, Buffer}; Decoded -> Decoded end. @@ -1727,33 +1752,42 @@ deliver_app_data(SOpts = #socket_options{active=Active, packet=Type}, SO end. -format_reply(#socket_options{active=false, mode=Mode, header=Header}, Data) -> - {ok, format_reply(Mode, Header, Data)}; -format_reply(#socket_options{active=_, mode=Mode, header=Header}, Data) -> - {ssl, sslsocket(), format_reply(Mode, Header, Data)}. +format_reply(#socket_options{active = false, mode = Mode, packet = Packet, + header = Header}, Data) -> + {ok, format_reply(Mode, Packet, Header, Data)}; +format_reply(#socket_options{active = _, mode = Mode, packet = Packet, + header = Header}, Data) -> + {ssl, sslsocket(), format_reply(Mode, Packet, Header, Data)}. -deliver_packet_error(SO= #socket_options{active=Active}, Data, Pid, From) -> +deliver_packet_error(SO= #socket_options{active = Active}, Data, Pid, From) -> send_or_reply(Active, Pid, From, format_packet_error(SO, Data)). -format_packet_error(#socket_options{active=false, mode=Mode}, Data) -> - {error, {invalid_packet, format_reply(Mode, raw, Data)}}; -format_packet_error(#socket_options{active=_, mode=Mode}, Data) -> - {ssl_error, sslsocket(), {invalid_packet, format_reply(Mode, raw, Data)}}. - -format_reply(list, _, Data) -> binary_to_list(Data); -format_reply(binary, 0, Data) -> Data; -format_reply(binary, raw, Data) -> Data; -format_reply(binary, N, Data) -> % Header mode - <<Header:N/binary, Rest/binary>> = Data, - [binary_to_list(Header), Rest]. - -%% tcp_closed -send_or_reply(false, _Pid, undefined, _Data) -> - Report = io_lib:format("SSL(debug): Unexpected Data ~p ~n",[_Data]), - error_logger:error_report(Report), - erlang:error({badarg, _Pid, undefined, _Data}), - ok; -send_or_reply(false, _Pid, From, Data) -> +format_packet_error(#socket_options{active = false, mode = Mode}, Data) -> + {error, {invalid_packet, format_reply(Mode, raw, 0, Data)}}; +format_packet_error(#socket_options{active = _, mode = Mode}, Data) -> + {ssl_error, sslsocket(), {invalid_packet, format_reply(Mode, raw, 0, Data)}}. + +format_reply(binary, _, N, Data) when N > 0 -> % Header mode + header(N, Data); +format_reply(binary, _, _, Data) -> + Data; +format_reply(list, Packet, _, Data) + when Packet == http; Packet == {http, headers}; Packet == http_bin; Packet == {http_bin, headers} -> + Data; +format_reply(list, _,_, Data) -> + binary_to_list(Data). + +header(0, <<>>) -> + <<>>; +header(_, <<>>) -> + []; +header(0, Binary) -> + Binary; +header(N, Binary) -> + <<?BYTE(ByteN), NewBinary/binary>> = Binary, + [ByteN | header(N-1, NewBinary)]. + +send_or_reply(false, _Pid, From, Data) when From =/= undefined -> gen_fsm:reply(From, Data); send_or_reply(_, Pid, _From, Data) -> send_user(Pid, Data). @@ -1766,40 +1800,131 @@ opposite_role(server) -> send_user(Pid, Msg) -> Pid ! Msg. -next_record(#state{tls_cipher_texts = [], socket = Socket} = State) -> +handle_tls_handshake(Handle, StateName, #state{tls_packets = [Packet]} = State) -> + FsmReturn = {next_state, StateName, State#state{tls_packets = []}}, + Handle(Packet, FsmReturn); + +handle_tls_handshake(Handle, StateName, #state{tls_packets = [Packet | Packets]} = State0) -> + FsmReturn = {next_state, StateName, State0#state{tls_packets = Packets}}, + case Handle(Packet, FsmReturn) of + {next_state, NextStateName, State, _Timeout} -> + handle_tls_handshake(Handle, NextStateName, State); + {stop, _,_} = Stop -> + Stop + end. + +next_state(_, #alert{} = Alert, #state{negotiated_version = Version} = State) -> + handle_own_alert(Alert, Version, decipher_error, State), + {stop, normal, State}; + +next_state(Next, no_record, State) -> + {next_state, Next, State, get_timeout(State)}; + +next_state(Next, #ssl_tls{type = ?ALERT, fragment = EncAlerts}, State) -> + Alerts = decode_alerts(EncAlerts), + handle_alerts(Alerts, {next_state, Next, State, get_timeout(State)}); + +next_state(StateName, #ssl_tls{type = ?HANDSHAKE, fragment = Data}, + State0 = #state{tls_handshake_buffer = Buf0, negotiated_version = Version}) -> + Handle = + fun({#hello_request{} = Packet, _}, {next_state, connection = SName, State}) -> + %% This message should not be included in handshake + %% message hashes. Starts new handshake (renegotiation) + Hs0 = ssl_handshake:init_hashes(), + ?MODULE:SName(Packet, State#state{tls_handshake_hashes=Hs0, + renegotiation = {true, peer}}); + ({#hello_request{} = Packet, _}, {next_state, SName, State}) -> + %% This message should not be included in handshake + %% message hashes. Already in negotiation so it will be ignored! + ?MODULE:SName(Packet, State); + ({#client_hello{} = Packet, Raw}, {next_state, connection = SName, State}) -> + Hs0 = ssl_handshake:init_hashes(), + Hs1 = ssl_handshake:update_hashes(Hs0, Raw), + ?MODULE:SName(Packet, State#state{tls_handshake_hashes=Hs1, + renegotiation = {true, peer}}); + ({Packet, Raw}, {next_state, SName, State = #state{tls_handshake_hashes=Hs0}}) -> + Hs1 = ssl_handshake:update_hashes(Hs0, Raw), + ?MODULE:SName(Packet, State#state{tls_handshake_hashes=Hs1}); + (_, StopState) -> StopState + end, + try + {Packets, Buf} = ssl_handshake:get_tls_handshake(Data,Buf0), + State = State0#state{tls_packets = Packets, tls_handshake_buffer = Buf}, + handle_tls_handshake(Handle, StateName, State) + catch throw:#alert{} = Alert -> + handle_own_alert(Alert, Version, StateName, State0), + {stop, normal, State0} + end; + +next_state(StateName, #ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, State0) -> + case application_data(Data, State0) of + Stop = {stop,_,_} -> + Stop; + {Record, State} -> + next_state(StateName, Record, State) + end; +next_state(StateName, #ssl_tls{type = ?CHANGE_CIPHER_SPEC, fragment = <<1>>} = + _ChangeCipher, + #state{connection_states = ConnectionStates0} = State0) -> + ConnectionStates1 = + ssl_record:activate_pending_connection_state(ConnectionStates0, read), + {Record, State} = next_record(State0#state{connection_states = ConnectionStates1}), + next_state(StateName, Record, State); +next_state(StateName, #ssl_tls{type = _Unknown}, State0) -> + %% Ignore unknown type + {Record, State} = next_record(State0), + next_state(StateName, Record, State). + +next_tls_record(Data, #state{tls_record_buffer = Buf0, + tls_cipher_texts = CT0} = State0) -> + case ssl_record:get_tls_records(Data, Buf0) of + {Records, Buf1} -> + CT1 = CT0 ++ Records, + next_record(State0#state{tls_record_buffer = Buf1, + tls_cipher_texts = CT1}); + #alert{} = Alert -> + Alert + end. + +next_record(#state{tls_packets = [], tls_cipher_texts = [], socket = Socket} = State) -> inet:setopts(Socket, [{active,once}]), - State; -next_record(#state{tls_cipher_texts = [CT | Rest], + {no_record, State}; +next_record(#state{tls_packets = [], tls_cipher_texts = [CT | Rest], connection_states = ConnStates0} = State) -> - {Plain, ConnStates} = ssl_record:decode_cipher_text(CT, ConnStates0), - gen_fsm:send_all_state_event(self(), Plain), - State#state{tls_cipher_texts = Rest, connection_states = ConnStates}. - + case ssl_record:decode_cipher_text(CT, ConnStates0) of + {Plain, ConnStates} -> + {Plain, State#state{tls_cipher_texts = Rest, connection_states = ConnStates}}; + #alert{} = Alert -> + {Alert, State} + end; +next_record(State) -> + {no_record, State}. next_record_if_active(State = #state{socket_options = #socket_options{active = false}}) -> - State; + {no_record ,State}; next_record_if_active(State) -> next_record(State). -next_state_connection(#state{send_queue = Queue0, - negotiated_version = Version, - socket = Socket, - transport_cb = Transport, - connection_states = ConnectionStates0, - ssl_options = #ssl_options{renegotiate_at = RenegotiateAt} - } = State) -> +next_state_connection(StateName, #state{send_queue = Queue0, + negotiated_version = Version, + socket = Socket, + transport_cb = Transport, + connection_states = ConnectionStates0, + ssl_options = #ssl_options{renegotiate_at = RenegotiateAt} + } = State) -> %% Send queued up data case queue:out(Queue0) of {{value, {From, Data}}, Queue} -> case encode_data(Data, Version, ConnectionStates0, RenegotiateAt) of {Msgs, [], ConnectionStates} -> Result = Transport:send(Socket, Msgs), - gen_fsm:reply(From, Result), - next_state_connection(State#state{connection_states = ConnectionStates, - send_queue = Queue}); + gen_fsm:reply(From, Result), + next_state_connection(StateName, + State#state{connection_states = ConnectionStates, + send_queue = Queue}); %% This is unlikely to happen. User configuration of the %% undocumented test option renegotiation_at can make it more likely. {Msgs, RestData, ConnectionStates} -> @@ -1817,14 +1942,22 @@ next_state_connection(#state{send_queue = Queue0, next_state_is_connection(State) end. +%% In next_state_is_connection/1: clear tls_handshake_hashes, +%% premaster_secret and public_key_info (only needed during handshake) +%% to reduce memory foot print of a connection. next_state_is_connection(State = #state{recv_during_renegotiation = true, socket_options = #socket_options{active = false}}) -> - passive_receive(State#state{recv_during_renegotiation = false}, connection); - -next_state_is_connection(State) -> - {next_state, connection, next_record_if_active(State)}. + passive_receive(State#state{recv_during_renegotiation = false, + premaster_secret = undefined, + public_key_info = undefined, + tls_handshake_hashes = {<<>>, <<>>}}, connection); +next_state_is_connection(State0) -> + {Record, State} = next_record_if_active(State0), + next_state(connection, Record, State#state{premaster_secret = undefined, + public_key_info = undefined, + tls_handshake_hashes = {<<>>, <<>>}}). register_session(_, _, _, #session{is_resumable = true} = Session) -> Session; %% Already registered @@ -1843,7 +1976,7 @@ invalidate_session(server, _, Port, Session) -> ssl_manager:invalidate_session(Port, Session). initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions}, User, - {CbModule, DataTag, CloseTag}) -> + {CbModule, DataTag, CloseTag, ErrorTag}) -> ConnectionStates = ssl_record:init_connection_states(Role), SessionCacheCb = case application:get_env(ssl, session_cb) of @@ -1863,6 +1996,7 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions}, User, transport_cb = CbModule, data_tag = DataTag, close_tag = CloseTag, + error_tag = ErrorTag, role = Role, host = Host, port = Port, @@ -1934,10 +2068,61 @@ set_socket_opts(Socket, [{active, Active}| Opts], SockOpts, Other) -> set_socket_opts(Socket, [Opt | Opts], SockOpts, Other) -> set_socket_opts(Socket, Opts, SockOpts, [Opt | Other]). +handle_alerts([], Result) -> + Result; +handle_alerts(_, {stop, _, _} = Stop) -> + %% If it is a fatal alert immediately close + Stop; +handle_alerts([Alert | Alerts], {next_state, StateName, State, _Timeout}) -> + handle_alerts(Alerts, handle_alert(Alert, StateName, State)). + +handle_alert(#alert{level = ?FATAL} = Alert, StateName, + #state{from = From, host = Host, port = Port, session = Session, + user_application = {_Mon, Pid}, + log_alert = Log, role = Role, socket_options = Opts} = State) -> + invalidate_session(Role, Host, Port, Session), + log_alert(Log, StateName, Alert), + alert_user(StateName, Opts, Pid, From, Alert, Role), + {stop, normal, State}; + +handle_alert(#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} = Alert, + StateName, #state{from = From, role = Role, + user_application = {_Mon, Pid}, socket_options = Opts} = State) -> + alert_user(StateName, Opts, Pid, From, Alert, Role), + {stop, normal, State}; + +handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, + #state{log_alert = Log, renegotiation = {true, internal}, from = From, + role = Role} = State) -> + log_alert(Log, StateName, Alert), + alert_user(From, Alert, Role), + {stop, normal, State}; + +handle_alert(#alert{level = ?WARNING, description = ?NO_RENEGOTIATION} = Alert, StateName, + #state{log_alert = Log, renegotiation = {true, From}} = State0) -> + log_alert(Log, StateName, Alert), + gen_fsm:reply(From, {error, renegotiation_rejected}), + {Record, State} = next_record(State0), + next_state(connection, Record, State); + +handle_alert(#alert{level = ?WARNING, description = ?USER_CANCELED} = Alert, StateName, + #state{log_alert = Log} = State0) -> + log_alert(Log, StateName, Alert), + {Record, State} = next_record(State0), + next_state(StateName, Record, State). + +alert_user(connection, Opts, Pid, From, Alert, Role) -> + alert_user(Opts#socket_options.active, Pid, From, Alert, Role); +alert_user(_, _, _, From, Alert, Role) -> + alert_user(From, Alert, Role). + alert_user(From, Alert, Role) -> alert_user(false, no_pid, From, Alert, Role). alert_user(false = Active, Pid, From, Alert, Role) -> + %% If there is an outstanding ssl_accept | recv + %% From will be defined and send_or_reply will + %% send the appropriate error message. ReasonCode = ssl_alert:reason_code(Alert, Role), send_or_reply(Active, Pid, From, {error, ReasonCode}); alert_user(Active, Pid, From, Alert, Role) -> @@ -1950,13 +2135,13 @@ alert_user(Active, Pid, From, Alert, Role) -> {ssl_error, sslsocket(), ReasonCode}) end. -log_alert(true, StateName, Alert) -> +log_alert(true, Info, Alert) -> Txt = ssl_alert:alert_txt(Alert), - error_logger:format("SSL: ~p: ~s\n", [StateName, Txt]); + error_logger:format("SSL: ~p: ~s\n", [Info, Txt]); log_alert(false, _, _) -> ok. -handle_own_alert(Alert, Version, StateName, +handle_own_alert(Alert, Version, Info, #state{transport_cb = Transport, socket = Socket, from = User, @@ -1965,20 +2150,25 @@ handle_own_alert(Alert, Version, StateName, log_alert = Log}) -> try %% Try to tell the other side {BinMsg, _} = - encode_alert(Alert, Version, ConnectionStates), + encode_alert(Alert, Version, ConnectionStates), + linux_workaround_transport_delivery_problems(Alert, Socket), Transport:send(Socket, BinMsg) catch _:_ -> %% Can crash if we are in a uninitialized state ignore end, try %% Try to tell the local user - log_alert(Log, StateName, Alert), + log_alert(Log, Info, Alert), alert_user(User, Alert, Role) catch _:_ -> ok end. -make_premaster_secret({MajVer, MinVer}, Alg) when Alg == rsa; - Alg == dh_dss; - Alg == dh_rsa -> + +handle_unexpected_message(Msg, Info, #state{negotiated_version = Version} = State) -> + Alert = ?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE), + handle_own_alert(Alert, Version, {Info, Msg}, State), + {stop, normal, State}. + +make_premaster_secret({MajVer, MinVer}, rsa) -> Rand = crypto:rand_bytes(?NUM_OF_PREMASTERSECRET_BYTES-2), <<?BYTE(MajVer), ?BYTE(MinVer), Rand/binary>>; make_premaster_secret(_, _) -> @@ -1996,9 +2186,12 @@ ack_connection(#state{renegotiation = {true, Initiater}} = State) ack_connection(#state{renegotiation = {true, From}} = State) -> gen_fsm:reply(From, ok), State#state{renegotiation = undefined}; -ack_connection(#state{renegotiation = {false, first}, from = From} = State) -> +ack_connection(#state{renegotiation = {false, first}, + from = From} = State) when From =/= undefined -> gen_fsm:reply(From, connected), - State#state{renegotiation = undefined}. + State#state{renegotiation = undefined}; +ack_connection(State) -> + State. renegotiate(#state{role = client} = State) -> %% Handle same way as if server requested @@ -2009,16 +2202,18 @@ renegotiate(#state{role = server, socket = Socket, transport_cb = Transport, negotiated_version = Version, - connection_states = ConnectionStates0} = State) -> + connection_states = ConnectionStates0} = State0) -> HelloRequest = ssl_handshake:hello_request(), - Frag = ssl_handshake:encode_handshake(HelloRequest, Version, undefined), + Frag = ssl_handshake:encode_handshake(HelloRequest, Version), Hs0 = ssl_handshake:init_hashes(), {BinMsg, ConnectionStates} = ssl_record:encode_handshake(Frag, Version, ConnectionStates0), Transport:send(Socket, BinMsg), - {next_state, hello, next_record(State#state{connection_states = - ConnectionStates, - tls_handshake_hashes = Hs0})}. + {Record, State} = next_record(State0#state{connection_states = + ConnectionStates, + tls_handshake_hashes = Hs0}), + next_state(hello, Record, State). + notify_senders(SendQueue) -> lists:foreach(fun({From, _}) -> gen_fsm:reply(From, {error, closed}) @@ -2028,3 +2223,39 @@ notify_renegotiater({true, From}) when not is_atom(From) -> gen_fsm:reply(From, {error, closed}); notify_renegotiater(_) -> ok. + +terminate_alert(Reason, Version, ConnectionStates) when Reason == normal; Reason == shutdown; + Reason == user_close -> + {BinAlert, _} = encode_alert(?ALERT_REC(?WARNING, ?CLOSE_NOTIFY), + Version, ConnectionStates), + BinAlert; +terminate_alert(_, Version, ConnectionStates) -> + {BinAlert, _} = encode_alert(?ALERT_REC(?FATAL, ?INTERNAL_ERROR), + Version, ConnectionStates), + BinAlert. + +workaround_transport_delivery_problems(_,_, user_close) -> + ok; +workaround_transport_delivery_problems(Socket, Transport, _) -> + %% Standard trick to try to make sure all + %% data sent to to tcp port is really sent + %% before tcp port is closed so that the peer will + %% get a correct error message. + inet:setopts(Socket, [{active, false}]), + Transport:shutdown(Socket, write), + Transport:recv(Socket, 0). + +linux_workaround_transport_delivery_problems(#alert{level = ?FATAL}, Socket) -> + case os:type() of + {unix, linux} -> + inet:setopts(Socket, [{nodelay, true}]); + _ -> + ok + end; +linux_workaround_transport_delivery_problems(_, _) -> + ok. + +get_timeout(#state{ssl_options=#ssl_options{hibernate_after=undefined}}) -> + infinity; +get_timeout(#state{ssl_options=#ssl_options{hibernate_after=HibernateAfter}}) -> + HibernateAfter. diff --git a/lib/ssl/src/ssl_handshake.erl b/lib/ssl/src/ssl_handshake.erl index 9f5ac7106a..1f4c44d115 100644 --- a/lib/ssl/src/ssl_handshake.erl +++ b/lib/ssl/src/ssl_handshake.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% Copyright Ericsson AB 2007-2011. All Rights Reserved. %% %% 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 @@ -28,36 +28,34 @@ -include("ssl_cipher.hrl"). -include("ssl_alert.hrl"). -include("ssl_internal.hrl"). --include("ssl_debug.hrl"). -include_lib("public_key/include/public_key.hrl"). --export([master_secret/4, client_hello/4, server_hello/3, hello/2, - hello_request/0, certify/7, certificate/3, - client_certificate_verify/6, - certificate_verify/6, certificate_request/2, - key_exchange/2, server_key_exchange_hash/2, finished/4, - verify_connection/5, - get_tls_handshake/4, - server_hello_done/0, sig_alg/1, - encode_handshake/3, init_hashes/0, - update_hashes/2, decrypt_premaster_secret/2]). +-export([master_secret/4, client_hello/6, server_hello/4, hello/4, + hello_request/0, certify/6, certificate/3, + client_certificate_verify/5, certificate_verify/5, + certificate_request/2, key_exchange/2, server_key_exchange_hash/2, + finished/4, verify_connection/5, get_tls_handshake/2, + decode_client_key/3, server_hello_done/0, + encode_handshake/2, init_hashes/0, update_hashes/2, + decrypt_premaster_secret/2]). + +-type tls_handshake() :: #client_hello{} | #server_hello{} | + #server_hello_done{} | #certificate{} | #certificate_request{} | + #client_key_exchange{} | #finished{} | #certificate_verify{} | + #hello_request{}. %%==================================================================== %% Internal application API %%==================================================================== %%-------------------------------------------------------------------- -%% Function: client_hello(Host, Port, ConnectionStates, SslOpts) -> -%% #client_hello{} -%% Host -%% Port -%% ConnectionStates = #connection_states{} -%% SslOpts = #ssl_options{} +-spec client_hello(host(), port_num(), #connection_states{}, + #ssl_options{}, boolean(), der_cert()) -> #client_hello{}. %% %% Description: Creates a client hello message. %%-------------------------------------------------------------------- client_hello(Host, Port, ConnectionStates, #ssl_options{versions = Versions, - ciphers = Ciphers} - = SslOpts) -> + ciphers = UserSuites} + = SslOpts, Renegotiation, OwnCert) -> Fun = fun(Version) -> ssl_record:protocol_version(Version) @@ -65,27 +63,26 @@ client_hello(Host, Port, ConnectionStates, #ssl_options{versions = Versions, Version = ssl_record:highest_protocol_version(lists:map(Fun, Versions)), Pending = ssl_record:pending_connection_state(ConnectionStates, read), SecParams = Pending#connection_state.security_parameters, - - Id = ssl_manager:client_session_id(Host, Port, SslOpts), + Ciphers = available_suites(UserSuites, Version), + + Id = ssl_manager:client_session_id(Host, Port, SslOpts, OwnCert), #client_hello{session_id = Id, client_version = Version, - cipher_suites = Ciphers, + cipher_suites = cipher_suites(Ciphers, Renegotiation), compression_methods = ssl_record:compressions(), - random = SecParams#security_parameters.client_random + random = SecParams#security_parameters.client_random, + renegotiation_info = + renegotiation_info(client, ConnectionStates, Renegotiation) }. %%-------------------------------------------------------------------- -%% Function: server_hello(Host, Port, SessionId, -%% Version, ConnectionStates) -> #server_hello{} -%% SessionId -%% Version -%% ConnectionStates -%% +-spec server_hello(session_id(), tls_version(), #connection_states{}, + boolean()) -> #server_hello{}. %% %% Description: Creates a server hello message. %%-------------------------------------------------------------------- -server_hello(SessionId, Version, ConnectionStates) -> +server_hello(SessionId, Version, ConnectionStates, Renegotiation) -> Pending = ssl_record:pending_connection_state(ConnectionStates, read), SecParams = Pending#connection_state.security_parameters, #server_hello{server_version = Version, @@ -93,11 +90,13 @@ server_hello(SessionId, Version, ConnectionStates) -> compression_method = SecParams#security_parameters.compression_algorithm, random = SecParams#security_parameters.server_random, - session_id = SessionId + session_id = SessionId, + renegotiation_info = + renegotiation_info(server, ConnectionStates, Renegotiation) }. %%-------------------------------------------------------------------- -%% Function: hello_request() -> #hello_request{} +-spec hello_request() -> #hello_request{}. %% %% Description: Creates a hello request message sent by server to %% trigger renegotiation. @@ -106,116 +105,124 @@ hello_request() -> #hello_request{}. %%-------------------------------------------------------------------- -%% Function: hello(Hello, Info) -> -%% {Version, Id, NewConnectionStates} | -%% #alert{} -%% -%% Hello = #client_hello{} | #server_hello{} -%% Info = ConnectionStates | {Port, Session, ConnectionStates} -%% ConnectionStates = #connection_states{} +-spec hello(#server_hello{} | #client_hello{}, #ssl_options{}, + #connection_states{} | {port_num(), #session{}, cache_ref(), + atom(), #connection_states{}, binary()}, + boolean()) -> {tls_version(), session_id(), #connection_states{}}| + {tls_version(), {resumed | new, #session{}}, + #connection_states{}} | #alert{}. %% %% Description: Handles a recieved hello message %%-------------------------------------------------------------------- hello(#server_hello{cipher_suite = CipherSuite, server_version = Version, compression_method = Compression, random = Random, - session_id = SessionId}, ConnectionStates) -> - NewConnectionStates = - hello_pending_connection_states(client, CipherSuite, Random, - Compression, ConnectionStates), - {Version, SessionId, NewConnectionStates}; - -hello(#client_hello{client_version = ClientVersion, random = Random} = Hello, - {Port, #ssl_options{versions = Versions} = SslOpts, - Session0, Cache, CacheCb, ConnectionStates0}) -> + session_id = SessionId, renegotiation_info = Info}, + #ssl_options{secure_renegotiate = SecureRenegotation}, + ConnectionStates0, Renegotiation) -> + + case ssl_record:is_acceptable_version(Version) of + true -> + case handle_renegotiation_info(client, Info, ConnectionStates0, + Renegotiation, SecureRenegotation, []) of + {ok, ConnectionStates1} -> + ConnectionStates = + hello_pending_connection_states(client, CipherSuite, Random, + Compression, ConnectionStates1), + {Version, SessionId, ConnectionStates}; + #alert{} = Alert -> + Alert + end; + false -> + ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION) + end; + +hello(#client_hello{client_version = ClientVersion, random = Random, + cipher_suites = CipherSuites, + renegotiation_info = Info} = Hello, + #ssl_options{versions = Versions, + secure_renegotiate = SecureRenegotation} = SslOpts, + {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert}, Renegotiation) -> Version = select_version(ClientVersion, Versions), case ssl_record:is_acceptable_version(Version) of true -> {Type, #session{cipher_suite = CipherSuite, compression_method = Compression} = Session} = select_session(Hello, Port, Session0, Version, - SslOpts, Cache, CacheCb), + SslOpts, Cache, CacheCb, Cert), case CipherSuite of no_suite -> ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY); _ -> - ConnectionStates = - hello_pending_connection_states(server, - CipherSuite, - Random, - Compression, - ConnectionStates0), - {Version, {Type, Session}, ConnectionStates} + case handle_renegotiation_info(server, Info, ConnectionStates0, + Renegotiation, SecureRenegotation, + CipherSuites) of + {ok, ConnectionStates1} -> + ConnectionStates = + hello_pending_connection_states(server, + CipherSuite, + Random, + Compression, + ConnectionStates1), + {Version, {Type, Session}, ConnectionStates}; + #alert{} = Alert -> + Alert + end end; false -> ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION) end. %%-------------------------------------------------------------------- -%% Function: certify(Certs, CertDbRef, MaxPathLen) -> -%% {PeerCert, PublicKeyInfo} | #alert{} -%% -%% Certs = #certificate{} -%% CertDbRef = reference() -%% MaxPathLen = integer() | nolimit +-spec certify(#certificate{}, term(), integer() | nolimit, + verify_peer | verify_none, {fun(), term}, + client | server) -> {der_cert(), public_key_info()} | #alert{}. %% %% Description: Handles a certificate handshake message %%-------------------------------------------------------------------- -certify(#certificate{asn1_certificates = ASN1Certs}, CertDbRef, - MaxPathLen, Verify, VerifyFun, ValidateFun, Role) -> +certify(#certificate{asn1_certificates = ASN1Certs}, CertDbRef, + MaxPathLen, _Verify, VerifyFunAndState, Role) -> [PeerCert | _] = ASN1Certs, - VerifyBool = verify_bool(Verify), - ValidateExtensionFun = - case ValidateFun of + ValidationFunAndState = + case VerifyFunAndState of undefined -> - fun(Extensions, ValidationState, Verify0, AccError) -> - ssl_certificate:validate_extensions(Extensions, ValidationState, - [], Verify0, AccError, Role) - end; - Fun -> - fun(Extensions, ValidationState, Verify0, AccError) -> - {NewExtensions, NewValidationState, NewAccError} - = ssl_certificate:validate_extensions(Extensions, ValidationState, - [], Verify0, AccError, Role), - Fun(NewExtensions, NewValidationState, Verify0, NewAccError) - end + {fun(OtpCert, ExtensionOrError, SslState) -> + ssl_certificate:validate_extension(OtpCert, + ExtensionOrError, SslState) + end, Role}; + {Fun, UserState0} -> + {fun(OtpCert, ExtensionOrError, {SslState, UserState}) -> + case ssl_certificate:validate_extension(OtpCert, + ExtensionOrError, + SslState) of + {valid, NewSslState} -> + {valid, {NewSslState, UserState}}; + {fail, Reason} -> + apply_user_fun(Fun, OtpCert, Reason, UserState, + SslState); + {unknown, _} -> + apply_user_fun(Fun, OtpCert, + ExtensionOrError, UserState, SslState) + end + end, {Role, UserState0}} end, - try - %% Allow missing root_cert and check that with VerifyFun - ssl_certificate:trusted_cert_and_path(ASN1Certs, CertDbRef, false) of - {TrustedErlCert, CertPath, VerifyErrors} -> - Result = public_key:pkix_path_validation(TrustedErlCert, - CertPath, - [{max_path_length, - MaxPathLen}, - {verify, VerifyBool}, - {validate_extensions_fun, - ValidateExtensionFun}, - {acc_errors, - VerifyErrors}]), - case Result of - {error, Reason} -> - path_validation_alert(Reason, Verify); - {ok, {PublicKeyInfo,_, []}} -> - {PeerCert, PublicKeyInfo}; - {ok, {PublicKeyInfo,_, AccErrors = [Error | _]}} -> - case VerifyFun(AccErrors) of - true -> - {PeerCert, PublicKeyInfo}; - false -> - path_validation_alert(Error, Verify) - end - end - catch - throw:Alert -> - Alert + + {TrustedErlCert, CertPath} = + ssl_certificate:trusted_cert_and_path(ASN1Certs, CertDbRef), + + case public_key:pkix_path_validation(TrustedErlCert, + CertPath, + [{max_path_length, + MaxPathLen}, + {verify_fun, ValidationFunAndState}]) of + {ok, {PublicKeyInfo,_}} -> + {PeerCert, PublicKeyInfo}; + {error, Reason} -> + path_validation_alert(Reason) end. - + %%-------------------------------------------------------------------- -%% Function: certificate(OwnCert, CertDbRef, Role) -> #certificate{} -%% -%% OwnCert = binary() -%% CertDbRef = term() as returned by ssl_certificate_db:create() +-spec certificate(der_cert(), term(), client | server) -> #certificate{} | #alert{}. %% %% Description: Creates a certificate message. %%-------------------------------------------------------------------- @@ -227,7 +234,7 @@ certificate(OwnCert, CertDbRef, client) -> {error, _} -> %% If no suitable certificate is available, the client %% SHOULD send a certificate message containing no - %% certificates. (chapter 7.4.6. rfc 4346) + %% certificates. (chapter 7.4.6. RFC 4346) [] end, #certificate{asn1_certificates = Chain}; @@ -241,57 +248,62 @@ certificate(OwnCert, CertDbRef, server) -> end. %%-------------------------------------------------------------------- -%% Function: client_certificate_verify(Cert, ConnectionStates) -> -%% #certificate_verify{} | ignore -%% Cert = #'OTPcertificate'{} -%% ConnectionStates = #connection_states{} +-spec client_certificate_verify(undefined | der_cert(), binary(), + tls_version(), private_key(), + {{binary(), binary()},{binary(), binary()}}) -> + #certificate_verify{} | ignore | #alert{}. %% %% Description: Creates a certificate_verify message, called by the client. %%-------------------------------------------------------------------- -client_certificate_verify(undefined, _, _, _, _, _) -> +client_certificate_verify(undefined, _, _, _, _) -> ignore; -client_certificate_verify(_, _, _, _, undefined, _) -> +client_certificate_verify(_, _, _, undefined, _) -> ignore; -client_certificate_verify(OwnCert, MasterSecret, Version, Algorithm, +client_certificate_verify(OwnCert, MasterSecret, Version, PrivateKey, {Hashes0, _}) -> case public_key:pkix_is_fixed_dh_cert(OwnCert) of true -> - ignore; + ?ALERT_REC(?FATAL, ?UNSUPPORTED_CERTIFICATE); false -> Hashes = calc_certificate_verify(Version, MasterSecret, - Algorithm, Hashes0), + alg_oid(PrivateKey), Hashes0), Signed = digitally_signed(Hashes, PrivateKey), #certificate_verify{signature = Signed} end. %%-------------------------------------------------------------------- -%% Function: certificate_verify(Signature, PublicKeyInfo) -> valid | #alert{} -%% -%% Signature = binary() -%% PublicKeyInfo = {Algorithm, PublicKey, PublicKeyParams} +-spec certificate_verify(binary(), public_key_info(), tls_version(), + binary(), {_, {binary(), binary()}}) -> valid | #alert{}. %% %% Description: Checks that the certificate_verify message is valid. %%-------------------------------------------------------------------- -certificate_verify(Signature, {_, PublicKey, _}, Version, - MasterSecret, Algorithm, {_, Hashes0}) - when Algorithm == rsa; - Algorithm == dh_rsa; - Algorithm == dhe_rsa -> +certificate_verify(Signature, {?'rsaEncryption'= Algorithm, PublicKey, _}, Version, + MasterSecret, {_, Hashes0}) -> Hashes = calc_certificate_verify(Version, MasterSecret, Algorithm, Hashes0), - case public_key:decrypt_public(Signature, PublicKey, + case public_key:decrypt_public(Signature, PublicKey, [{rsa_pad, rsa_pkcs1_padding}]) of Hashes -> valid; _ -> ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE) + end; +certificate_verify(Signature, {?'id-dsa' = Algorithm, PublicKey, PublicKeyParams}, Version, + MasterSecret, {_, Hashes0}) -> + Hashes = calc_certificate_verify(Version, MasterSecret, + Algorithm, Hashes0), + case public_key:verify(Hashes, none, Signature, {PublicKey, PublicKeyParams}) of + true -> + valid; + false -> + ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE) end. -%% TODO dsa clause + %%-------------------------------------------------------------------- -%% Function: certificate_request(ConnectionStates, CertDbRef) -> -%% #certificate_request{} +-spec certificate_request(#connection_states{}, certdb_ref()) -> + #certificate_request{}. %% %% Description: Creates a certificate_request message, called by the server. %%-------------------------------------------------------------------- @@ -307,11 +319,12 @@ certificate_request(ConnectionStates, CertDbRef) -> }. %%-------------------------------------------------------------------- -%% Function: key_exchange(Role, Secret, Params) -> -%% #client_key_exchange{} | #server_key_exchange{} -%% -%% Secret - -%% Params - +-spec key_exchange(client | server, + {premaster_secret, binary(), public_key_info()} | + {dh, binary()} | + {dh, {binary(), binary()}, #'DHParameter'{}, key_algo(), + binary(), binary(), private_key()}) -> + #client_key_exchange{} | #server_key_exchange{}. %% %% Description: Creates a keyexchange message. %%-------------------------------------------------------------------- @@ -319,18 +332,14 @@ key_exchange(client, {premaster_secret, Secret, {_, PublicKey, _}}) -> EncPremasterSecret = encrypted_premaster_secret(Secret, PublicKey), #client_key_exchange{exchange_keys = EncPremasterSecret}; -key_exchange(client, fixed_diffie_hellman) -> - #client_key_exchange{exchange_keys = - #client_diffie_hellman_public{ - dh_public = <<>> - }}; + key_exchange(client, {dh, <<?UINT32(Len), PublicKey:Len/binary>>}) -> #client_key_exchange{ exchange_keys = #client_diffie_hellman_public{ dh_public = PublicKey} }; -key_exchange(server, {dh, {<<?UINT32(_), PublicKey/binary>>, _}, +key_exchange(server, {dh, {<<?UINT32(Len), PublicKey:Len/binary>>, _}, #'DHParameter'{prime = P, base = G}, KeyAlgo, ClientRandom, ServerRandom, PrivateKey}) -> <<?UINT32(_), PBin/binary>> = crypto:mpint(P), @@ -339,31 +348,28 @@ key_exchange(server, {dh, {<<?UINT32(_), PublicKey/binary>>, _}, GLen = byte_size(GBin), YLen = byte_size(PublicKey), ServerDHParams = #server_dh_params{dh_p = PBin, - dh_g = GBin, dh_y = PublicKey}, - - Hash = - server_key_exchange_hash(KeyAlgo, <<ClientRandom/binary, - ServerRandom/binary, - ?UINT16(PLen), PBin/binary, - ?UINT16(GLen), GBin/binary, - ?UINT16(YLen), PublicKey/binary>>), - Signed = digitally_signed(Hash, PrivateKey), - #server_key_exchange{params = ServerDHParams, - signed_params = Signed}; -key_exchange(_, _) -> - %%TODO : Real imp - #server_key_exchange{}. - -%%-------------------------------------------------------------------- -%% Function: master_secret(Version, Session/PremasterSecret, -%% ConnectionStates, Role) -> -%% {MasterSecret, NewConnectionStates} | #alert{} -%% Version = #protocol_version{} -%% Session = #session{} (session contains master secret) -%% PremasterSecret = binary() -%% ConnectionStates = #connection_states{} -%% Role = client | server -%% + dh_g = GBin, dh_y = PublicKey}, + + case KeyAlgo of + dh_anon -> + #server_key_exchange{params = ServerDHParams, + signed_params = <<>>}; + _ -> + Hash = + server_key_exchange_hash(KeyAlgo, <<ClientRandom/binary, + ServerRandom/binary, + ?UINT16(PLen), PBin/binary, + ?UINT16(GLen), GBin/binary, + ?UINT16(YLen), PublicKey/binary>>), + Signed = digitally_signed(Hash, PrivateKey), + #server_key_exchange{params = ServerDHParams, + signed_params = Signed} + end. + +%%-------------------------------------------------------------------- +-spec master_secret(tls_version(), #session{} | binary(), #connection_states{}, + client | server) -> {binary(), #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. @@ -400,9 +406,8 @@ master_secret(Version, PremasterSecret, ConnectionStates, Role) -> end. %%-------------------------------------------------------------------- -%% Function: finished(Version, Role, MacSecret, Hashes) -> #finished{} -%% -%% ConnectionStates = #connection_states{} +-spec finished(tls_version(), client | server, binary(), {{binary(), binary()},_}) -> + #finished{}. %% %% Description: Creates a handshake finished message %%------------------------------------------------------------------- @@ -411,15 +416,8 @@ finished(Version, Role, MasterSecret, {Hashes, _}) -> % use the current hashes calc_finished(Version, Role, MasterSecret, Hashes)}. %%-------------------------------------------------------------------- -%% Function: verify_connection(Finished, Role, -%% MasterSecret, Hashes) -> verified | #alert{} -%% -%% Finished = #finished{} -%% Role = client | server - the role of the process that sent the finished -%% message. -%% MasterSecret = binary() -%% Hashes = binary() - {md5_hash, sha_hash} -%% +-spec verify_connection(tls_version(), #finished{}, client | server, binary(), + {_, {binary(), binary()}}) -> verified | #alert{}. %% %% Description: Checks the ssl handshake finished message to verify %% the connection. @@ -427,92 +425,153 @@ finished(Version, Role, MasterSecret, {Hashes, _}) -> % use the current hashes verify_connection(Version, #finished{verify_data = Data}, Role, MasterSecret, {_, {MD5, SHA}}) -> %% use the previous hashes - ?DBG_HEX(crypto:md5_final(MD5)), - ?DBG_HEX(crypto:sha_final(SHA)), case calc_finished(Version, Role, MasterSecret, {MD5, SHA}) of Data -> verified; - _E -> - ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE) + _ -> + ?ALERT_REC(?FATAL, ?DECRYPT_ERROR) end. - +%%-------------------------------------------------------------------- +-spec server_hello_done() -> #server_hello_done{}. +%% +%% Description: Creates a server hello done message. +%%-------------------------------------------------------------------- server_hello_done() -> #server_hello_done{}. %%-------------------------------------------------------------------- -%% Function: encode_handshake(HandshakeRec) -> BinHandshake -%% HandshakeRec = #client_hello | #server_hello{} | server_hello_done | -%% #certificate{} | #client_key_exchange{} | #finished{} | -%% #client_certify_request{} +-spec encode_handshake(tls_handshake(), tls_version()) -> iolist(). %% -%% encode a handshake packet to binary +%% Description: Encode a handshake packet to binary %%-------------------------------------------------------------------- -encode_handshake(Package, Version, KeyAlg) -> - SigAlg = sig_alg(KeyAlg), - {MsgType, Bin} = enc_hs(Package, Version, SigAlg), +encode_handshake(Package, Version) -> + {MsgType, Bin} = enc_hs(Package, Version), Len = byte_size(Bin), [MsgType, ?uint24(Len), Bin]. %%-------------------------------------------------------------------- -%% Function: get_tls_handshake(Data, Buffer) -> Result -%% Result = {[#handshake{}], [Raw], NewBuffer} -%% Data = Buffer = NewBuffer = Raw = binary() +-spec get_tls_handshake(binary(), binary() | iolist()) -> + {[tls_handshake()], binary()}. %% %% Description: Given buffered and new data from ssl_record, collects -%% and returns it as a list of #handshake, also returns leftover +%% and returns it as a list of handshake messages, also returns leftover %% data. %%-------------------------------------------------------------------- -get_tls_handshake(Data, <<>>, KeyAlg, Version) -> - get_tls_handshake_aux(Data, KeyAlg, Version, []); -get_tls_handshake(Data, Buffer, KeyAlg, Version) -> - get_tls_handshake_aux(list_to_binary([Buffer, Data]), - KeyAlg, Version, []). +get_tls_handshake(Data, <<>>) -> + get_tls_handshake_aux(Data, []); +get_tls_handshake(Data, Buffer) -> + get_tls_handshake_aux(list_to_binary([Buffer, Data]), []). -get_tls_handshake_aux(<<?BYTE(Type), ?UINT24(Length), - Body:Length/binary,Rest/binary>>, KeyAlg, - Version, Acc) -> - Raw = <<?BYTE(Type), ?UINT24(Length), Body/binary>>, - H = dec_hs(Type, Body, key_exchange_alg(KeyAlg), Version), - get_tls_handshake_aux(Rest, KeyAlg, Version, [{H,Raw} | Acc]); -get_tls_handshake_aux(Data, _KeyAlg, _Version, Acc) -> - {lists:reverse(Acc), Data}. +%%-------------------------------------------------------------------- +-spec decode_client_key(binary(), key_algo(), tls_version()) -> + #encrypted_premaster_secret{} | #client_diffie_hellman_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 init_hashes() ->{{binary(), binary()}, {binary(), binary()}}. + +%% +%% Description: Calls crypto hash (md5 and sha) init functions to +%% initalize the hash context. +%%-------------------------------------------------------------------- +init_hashes() -> + T = {crypto:md5_init(), crypto:sha_init()}, + {T, T}. + +%%-------------------------------------------------------------------- +-spec update_hashes({{binary(), binary()}, {binary(), binary()}}, Data ::term()) -> + {{binary(), binary()}, {binary(), binary()}}. +%% +%% Description: Calls crypto hash (md5 and sha) update functions to +%% update the hash context with Data. +%%-------------------------------------------------------------------- +update_hashes(Hashes, % special-case SSL2 client hello + <<?CLIENT_HELLO, ?UINT24(_), ?BYTE(Major), ?BYTE(Minor), + ?UINT16(CSLength), ?UINT16(0), + ?UINT16(CDLength), + CipherSuites:CSLength/binary, + ChallengeData:CDLength/binary>>) -> + update_hashes(Hashes, + <<?CLIENT_HELLO, ?BYTE(Major), ?BYTE(Minor), + ?UINT16(CSLength), ?UINT16(0), + ?UINT16(CDLength), + CipherSuites:CSLength/binary, + ChallengeData:CDLength/binary>>); +update_hashes({{MD50, SHA0}, _Prev}, Data) -> + {MD51, SHA1} = {crypto:md5_update(MD50, Data), + crypto:sha_update(SHA0, Data)}, + {{MD51, SHA1}, {MD50, SHA0}}. + +%%-------------------------------------------------------------------- +-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. + +%%-------------------------------------------------------------------- +-spec server_key_exchange_hash(rsa | dhe_rsa| dhe_dss | dh_anon, binary()) -> binary(). + +%% +%% Description: Calculate server key exchange hash +%%-------------------------------------------------------------------- +server_key_exchange_hash(Algorithm, Value) when Algorithm == rsa; + Algorithm == dhe_rsa -> + MD5 = crypto:md5(Value), + SHA = crypto:sha(Value), + <<MD5/binary, SHA/binary>>; + +server_key_exchange_hash(dhe_dss, Value) -> + crypto:sha(Value). %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- -verify_bool(verify_peer) -> - true; -verify_bool(verify_none) -> - false. +get_tls_handshake_aux(<<?BYTE(Type), ?UINT24(Length), + Body:Length/binary,Rest/binary>>, Acc) -> + Raw = <<?BYTE(Type), ?UINT24(Length), Body/binary>>, + H = dec_hs(Type, Body), + get_tls_handshake_aux(Rest, [{H,Raw} | Acc]); +get_tls_handshake_aux(Data, Acc) -> + {lists:reverse(Acc), Data}. -path_validation_alert({bad_cert, cert_expired}, _) -> +path_validation_alert({bad_cert, cert_expired}) -> ?ALERT_REC(?FATAL, ?CERTIFICATE_EXPIRED); -path_validation_alert({bad_cert, invalid_issuer}, _) -> +path_validation_alert({bad_cert, invalid_issuer}) -> ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE); -path_validation_alert({bad_cert, invalid_signature} , _) -> +path_validation_alert({bad_cert, invalid_signature}) -> ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE); -path_validation_alert({bad_cert, name_not_permitted}, _) -> +path_validation_alert({bad_cert, name_not_permitted}) -> ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE); -path_validation_alert({bad_cert, unknown_critical_extension}, _) -> +path_validation_alert({bad_cert, unknown_critical_extension}) -> ?ALERT_REC(?FATAL, ?UNSUPPORTED_CERTIFICATE); -path_validation_alert({bad_cert, cert_revoked}, _) -> +path_validation_alert({bad_cert, cert_revoked}) -> ?ALERT_REC(?FATAL, ?CERTIFICATE_REVOKED); -path_validation_alert(_, _) -> +path_validation_alert({bad_cert, selfsigned_peer}) -> + ?ALERT_REC(?FATAL, ?BAD_CERTIFICATE); +path_validation_alert({bad_cert, unknown_ca}) -> + ?ALERT_REC(?FATAL, ?UNKNOWN_CA); +path_validation_alert(_) -> ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE). select_session(Hello, Port, Session, Version, - #ssl_options{ciphers = UserSuites} = SslOpts, Cache, CacheCb) -> + #ssl_options{ciphers = UserSuites} = SslOpts, Cache, CacheCb, Cert) -> SuggestedSessionId = Hello#client_hello.session_id, SessionId = ssl_manager:server_session_id(Port, SuggestedSessionId, - SslOpts), + SslOpts, Cert), - Suites = case UserSuites of - [] -> - ssl_cipher:suites(Version); - _ -> - UserSuites - end, - + Suites = available_suites(Cert, UserSuites, Version), case ssl_session:is_new(SuggestedSessionId, SessionId) of true -> CipherSuite = @@ -525,7 +584,119 @@ select_session(Hello, Port, Session, Version, false -> {resumed, CacheCb:lookup(Cache, {Port, SessionId})} end. - + +available_suites(UserSuites, Version) -> + case UserSuites of + [] -> + ssl_cipher:suites(Version); + _ -> + UserSuites + end. + +available_suites(ServerCert, UserSuites, Version) -> + ssl_cipher:filter(ServerCert, available_suites(UserSuites, Version)). + +cipher_suites(Suites, false) -> + [?TLS_EMPTY_RENEGOTIATION_INFO_SCSV | Suites]; +cipher_suites(Suites, true) -> + Suites. + +renegotiation_info(client, _, false) -> + #renegotiation_info{renegotiated_connection = undefined}; +renegotiation_info(server, ConnectionStates, false) -> + CS = ssl_record:current_connection_state(ConnectionStates, read), + case CS#connection_state.secure_renegotiation of + true -> + #renegotiation_info{renegotiated_connection = ?byte(0)}; + false -> + #renegotiation_info{renegotiated_connection = undefined} + end; +renegotiation_info(client, ConnectionStates, true) -> + CS = ssl_record:current_connection_state(ConnectionStates, read), + case CS#connection_state.secure_renegotiation of + true -> + Data = CS#connection_state.client_verify_data, + #renegotiation_info{renegotiated_connection = Data}; + false -> + #renegotiation_info{renegotiated_connection = undefined} + end; + +renegotiation_info(server, ConnectionStates, true) -> + CS = ssl_record:current_connection_state(ConnectionStates, read), + case CS#connection_state.secure_renegotiation of + true -> + CData = CS#connection_state.client_verify_data, + SData =CS#connection_state.server_verify_data, + #renegotiation_info{renegotiated_connection = <<CData/binary, SData/binary>>}; + false -> + #renegotiation_info{renegotiated_connection = undefined} + end. + +handle_renegotiation_info(_, #renegotiation_info{renegotiated_connection = ?byte(0)}, + ConnectionStates, false, _, _) -> + {ok, ssl_record:set_renegotiation_flag(true, ConnectionStates)}; + +handle_renegotiation_info(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(_, undefined, ConnectionStates, false, _, _) -> + {ok, ssl_record:set_renegotiation_flag(false, ConnectionStates)}; + +handle_renegotiation_info(client, #renegotiation_info{renegotiated_connection = ClientServerVerify}, + ConnectionStates, true, _, _) -> + CS = ssl_record:current_connection_state(ConnectionStates, read), + CData = CS#connection_state.client_verify_data, + SData = CS#connection_state.server_verify_data, + case <<CData/binary, SData/binary>> == ClientServerVerify of + true -> + {ok, ConnectionStates}; + false -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE) + end; +handle_renegotiation_info(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); + false -> + CS = ssl_record:current_connection_state(ConnectionStates, read), + Data = CS#connection_state.client_verify_data, + case Data == ClientVerify of + true -> + {ok, ConnectionStates}; + false -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE) + end + end; + +handle_renegotiation_info(client, undefined, ConnectionStates, true, SecureRenegotation, _) -> + handle_renegotiation_info(ConnectionStates, SecureRenegotation); + +handle_renegotiation_info(server, undefined, ConnectionStates, true, SecureRenegotation, CipherSuites) -> + case is_member(?TLS_EMPTY_RENEGOTIATION_INFO_SCSV, CipherSuites) of + true -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE); + false -> + handle_renegotiation_info(ConnectionStates, SecureRenegotation) + end. + +handle_renegotiation_info(ConnectionStates, SecureRenegotation) -> + CS = ssl_record:current_connection_state(ConnectionStates, read), + case {SecureRenegotation, CS#connection_state.secure_renegotiation} of + {_, true} -> + ?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE); + {true, false} -> + ?ALERT_REC(?FATAL, ?NO_RENEGOTIATION); + {false, false} -> + {ok, ConnectionStates} + end. + %% Update pending connection states with parameters exchanged via %% hello messages %% NOTE : Role is the role of the receiver of the hello message @@ -597,15 +768,13 @@ master_secret(Version, MasterSecret, #security_parameters{ hash_size = HashSize, key_material_length = KML, expanded_key_material_length = EKML, - iv_size = IVS, - exportable = Exportable}, + iv_size = IVS}, ConnectionStates, Role) -> {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, ServerWriteKey, ClientIV, ServerIV} = - setup_keys(Version, Exportable, MasterSecret, ServerRandom, + setup_keys(Version, MasterSecret, ServerRandom, ClientRandom, HashSize, KML, EKML, IVS), - ?DBG_HEX(ClientWriteKey), - ?DBG_HEX(ClientIV), + ConnStates1 = ssl_record:set_master_secret(MasterSecret, ConnectionStates), ConnStates2 = ssl_record:set_mac_secret(ClientWriteMacSecret, ServerWriteMacSecret, @@ -618,7 +787,7 @@ master_secret(Version, MasterSecret, #security_parameters{ ServerCipherState, Role)}. -dec_hs(?HELLO_REQUEST, <<>>, _, _) -> +dec_hs(?HELLO_REQUEST, <<>>) -> #hello_request{}; %% Client hello v2. @@ -628,85 +797,125 @@ dec_hs(?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), ?UINT16(CSLength), ?UINT16(0), ?UINT16(CDLength), CipherSuites:CSLength/binary, - ChallengeData:CDLength/binary>>, - _, _) -> - ?DBG_HEX(CipherSuites), - ?DBG_HEX(CipherSuites), + ChallengeData:CDLength/binary>>) -> #client_hello{client_version = {Major, Minor}, random = ssl_ssl2:client_random(ChallengeData, CDLength), session_id = 0, cipher_suites = from_3bytes(CipherSuites), - compression_methods = [?NULL] + compression_methods = [?NULL], + renegotiation_info = undefined }; dec_hs(?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, - _FutureCompatData/binary>>, - _, _) -> + Extensions/binary>>) -> + + RenegotiationInfo = proplists:get_value(renegotiation_info, dec_hello_extensions(Extensions), + undefined), #client_hello{ client_version = {Major,Minor}, random = Random, session_id = Session_ID, cipher_suites = from_2bytes(CipherSuites), - compression_methods = Comp_methods + compression_methods = Comp_methods, + renegotiation_info = RenegotiationInfo }; + dec_hs(?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?BYTE(SID_length), Session_ID:SID_length/binary, - Cipher_suite:2/binary, ?BYTE(Comp_method)>>, _, _) -> + Cipher_suite:2/binary, ?BYTE(Comp_method)>>) -> #server_hello{ server_version = {Major,Minor}, random = Random, session_id = Session_ID, cipher_suite = Cipher_suite, - compression_method = Comp_method - }; -dec_hs(?CERTIFICATE, <<?UINT24(ACLen), ASN1Certs:ACLen/binary>>, _, _) -> + compression_method = Comp_method, + renegotiation_info = undefined}; + +dec_hs(?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, + ?BYTE(SID_length), Session_ID:SID_length/binary, + Cipher_suite:2/binary, ?BYTE(Comp_method), + ?UINT16(ExtLen), Extensions:ExtLen/binary>>) -> + + RenegotiationInfo = proplists:get_value(renegotiation_info, dec_hello_extensions(Extensions, []), + undefined), + #server_hello{ + server_version = {Major,Minor}, + random = Random, + session_id = Session_ID, + cipher_suite = Cipher_suite, + compression_method = Comp_method, + renegotiation_info = RenegotiationInfo}; +dec_hs(?CERTIFICATE, <<?UINT24(ACLen), ASN1Certs:ACLen/binary>>) -> #certificate{asn1_certificates = certs_to_list(ASN1Certs)}; -dec_hs(?SERVER_KEY_EXCHANGE, <<?UINT16(ModLen), Mod:ModLen/binary, - ?UINT16(ExpLen), Exp:ExpLen/binary, - ?UINT16(_), Sig/binary>>, - ?KEY_EXCHANGE_RSA, _) -> - #server_key_exchange{params = #server_rsa_params{rsa_modulus = Mod, - rsa_exponent = Exp}, - signed_params = Sig}; + dec_hs(?SERVER_KEY_EXCHANGE, <<?UINT16(PLen), P:PLen/binary, ?UINT16(GLen), G:GLen/binary, ?UINT16(YLen), Y:YLen/binary, - ?UINT16(_), Sig/binary>>, - ?KEY_EXCHANGE_DIFFIE_HELLMAN, _) -> + ?UINT16(0)>>) -> %% May happen if key_algorithm is dh_anon + #server_key_exchange{params = #server_dh_params{dh_p = P,dh_g = G, + dh_y = Y}, + signed_params = <<>>}; +dec_hs(?SERVER_KEY_EXCHANGE, <<?UINT16(PLen), P:PLen/binary, + ?UINT16(GLen), G:GLen/binary, + ?UINT16(YLen), Y:YLen/binary, + ?UINT16(Len), Sig:Len/binary>>) -> #server_key_exchange{params = #server_dh_params{dh_p = P,dh_g = G, dh_y = Y}, signed_params = Sig}; dec_hs(?CERTIFICATE_REQUEST, <<?BYTE(CertTypesLen), CertTypes:CertTypesLen/binary, - ?UINT16(CertAuthsLen), CertAuths:CertAuthsLen/binary>>, _, _) -> - %% TODO: maybe we should chop up CertAuths into a list? + ?UINT16(CertAuthsLen), CertAuths:CertAuthsLen/binary>>) -> #certificate_request{certificate_types = CertTypes, certificate_authorities = CertAuths}; -dec_hs(?SERVER_HELLO_DONE, <<>>, _, _) -> +dec_hs(?SERVER_HELLO_DONE, <<>>) -> #server_hello_done{}; -dec_hs(?CERTIFICATE_VERIFY,<<?UINT16(_), Signature/binary>>, _, _)-> +dec_hs(?CERTIFICATE_VERIFY,<<?UINT16(_), Signature/binary>>)-> #certificate_verify{signature = Signature}; -dec_hs(?CLIENT_KEY_EXCHANGE, PKEPMS, ?KEY_EXCHANGE_RSA, {3, 0}) -> - PreSecret = #encrypted_premaster_secret{premaster_secret = PKEPMS}, - #client_key_exchange{exchange_keys = PreSecret}; -dec_hs(?CLIENT_KEY_EXCHANGE, <<?UINT16(_), PKEPMS/binary>>, - ?KEY_EXCHANGE_RSA, _) -> - PreSecret = #encrypted_premaster_secret{premaster_secret = PKEPMS}, - #client_key_exchange{exchange_keys = PreSecret}; -dec_hs(?CLIENT_KEY_EXCHANGE, <<>>, ?KEY_EXCHANGE_DIFFIE_HELLMAN, _) -> - %% TODO: Should check whether the cert already contains a suitable DH-key (7.4.7.2) - throw(?ALERT_REC(?FATAL, implicit_public_value_encoding)); -dec_hs(?CLIENT_KEY_EXCHANGE, <<?UINT16(DH_YLen), DH_Y:DH_YLen/binary>>, - ?KEY_EXCHANGE_DIFFIE_HELLMAN, _) -> - #client_key_exchange{exchange_keys = - #client_diffie_hellman_public{dh_public = DH_Y}}; -dec_hs(?FINISHED, VerifyData, _, _) -> +dec_hs(?CLIENT_KEY_EXCHANGE, PKEPMS) -> + #client_key_exchange{exchange_keys = PKEPMS}; +dec_hs(?FINISHED, VerifyData) -> #finished{verify_data = VerifyData}; -dec_hs(_, _, _, _) -> +dec_hs(_, _) -> throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE)). +dec_client_key(PKEPMS, ?KEY_EXCHANGE_RSA, {3, 0}) -> + #encrypted_premaster_secret{premaster_secret = PKEPMS}; +dec_client_key(<<?UINT16(_), PKEPMS/binary>>, ?KEY_EXCHANGE_RSA, _) -> + #encrypted_premaster_secret{premaster_secret = PKEPMS}; +dec_client_key(<<>>, ?KEY_EXCHANGE_DIFFIE_HELLMAN, _) -> + throw(?ALERT_REC(?FATAL, ?UNSUPPORTED_CERTIFICATE)); +dec_client_key(<<?UINT16(DH_YLen), DH_Y:DH_YLen/binary>>, + ?KEY_EXCHANGE_DIFFIE_HELLMAN, _) -> + #client_diffie_hellman_public{dh_public = DH_Y}. + +dec_hello_extensions(<<>>) -> + []; +dec_hello_extensions(<<?UINT16(ExtLen), Extensions:ExtLen/binary>>) -> + dec_hello_extensions(Extensions, []); +dec_hello_extensions(_) -> + []. + +dec_hello_extensions(<<>>, Acc) -> + Acc; +dec_hello_extensions(<<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), Info:Len/binary, Rest/binary>>, Acc) -> + RenegotiateInfo = case Len of + 1 -> % Initial handshake + Info; % should be <<0>> will be matched in handle_renegotiation_info + _ -> + VerifyLen = Len - 1, + <<?BYTE(VerifyLen), VerifyInfo/binary>> = Info, + VerifyInfo + end, + dec_hello_extensions(Rest, [{renegotiation_info, + #renegotiation_info{renegotiated_connection = RenegotiateInfo}} | Acc]); +dec_hello_extensions(<<?UINT16(_), ?UINT16(Len), _Unknown:Len, Rest/binary>>, Acc) -> + dec_hello_extensions(Rest, Acc); +%% Need this clause? +dec_hello_extensions(_, Acc) -> + Acc. + encrypted_premaster_secret(Secret, RSAPublicKey) -> try PreMasterSecret = public_key:encrypt_public(Secret, RSAPublicKey, @@ -718,14 +927,6 @@ encrypted_premaster_secret(Secret, RSAPublicKey) -> throw(?ALERT_REC(?FATAL, ?HANDSHAKE_FAILURE)) end. -decrypt_premaster_secret(Secret, RSAPrivateKey) -> - try public_key:decrypt_private(Secret, RSAPrivateKey, - [{rsa_pad, rsa_pkcs1_padding}]) - catch - _:_ -> - throw(?ALERT_REC(?FATAL, ?DECRYPTION_FAILED)) - end. - %% encode/decode stream of certificate data to/from list of certificate data certs_to_list(ASN1Certs) -> certs_to_list(ASN1Certs, []). @@ -741,50 +942,45 @@ certs_from_list(ACList) -> <<?UINT24(CertLen), Cert/binary>> end || Cert <- ACList]). -enc_hs(#hello_request{}, _Version, _) -> +enc_hs(#hello_request{}, _Version) -> {?HELLO_REQUEST, <<>>}; -enc_hs(#client_hello{ - client_version = {Major, Minor}, - random = Random, - session_id = SessionID, - cipher_suites = CipherSuites, - compression_methods = CompMethods}, _Version, _) -> +enc_hs(#client_hello{client_version = {Major, Minor}, + random = Random, + session_id = SessionID, + cipher_suites = CipherSuites, + compression_methods = CompMethods, + renegotiation_info = RenegotiationInfo}, _Version) -> SIDLength = byte_size(SessionID), BinCompMethods = list_to_binary(CompMethods), CmLength = byte_size(BinCompMethods), BinCipherSuites = list_to_binary(CipherSuites), CsLength = byte_size(BinCipherSuites), + Extensions = hello_extensions(RenegotiationInfo), + ExtensionsBin = enc_hello_extensions(Extensions), {?CLIENT_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?BYTE(SIDLength), SessionID/binary, ?UINT16(CsLength), BinCipherSuites/binary, - ?BYTE(CmLength), BinCompMethods/binary>>}; -enc_hs(#server_hello{ - server_version = {Major, Minor}, - random = Random, - session_id = Session_ID, - cipher_suite = Cipher_suite, - compression_method = Comp_method}, _Version, _) -> + ?BYTE(CmLength), BinCompMethods/binary, ExtensionsBin/binary>>}; + +enc_hs(#server_hello{server_version = {Major, Minor}, + random = Random, + session_id = Session_ID, + cipher_suite = Cipher_suite, + compression_method = Comp_method, + renegotiation_info = RenegotiationInfo}, _Version) -> SID_length = byte_size(Session_ID), + Extensions = hello_extensions(RenegotiationInfo), + ExtensionsBin = enc_hello_extensions(Extensions), {?SERVER_HELLO, <<?BYTE(Major), ?BYTE(Minor), Random:32/binary, ?BYTE(SID_length), Session_ID/binary, - Cipher_suite/binary, ?BYTE(Comp_method)>>}; -enc_hs(#certificate{asn1_certificates = ASN1CertList}, _Version, _) -> + Cipher_suite/binary, ?BYTE(Comp_method), ExtensionsBin/binary>>}; +enc_hs(#certificate{asn1_certificates = ASN1CertList}, _Version) -> ASN1Certs = certs_from_list(ASN1CertList), ACLen = erlang:iolist_size(ASN1Certs), {?CERTIFICATE, <<?UINT24(ACLen), ASN1Certs:ACLen/binary>>}; -enc_hs(#server_key_exchange{params = #server_rsa_params{rsa_modulus = Mod, - rsa_exponent = Exp}, - signed_params = SignedParams}, _Version, _) -> - ModLen = byte_size(Mod), - ExpLen = byte_size(Exp), - SignedLen = byte_size(SignedParams), - {?SERVER_KEY_EXCHANGE, <<?UINT16(ModLen),Mod/binary, - ?UINT16(ExpLen), Exp/binary, - ?UINT16(SignedLen), SignedParams/binary>> - }; enc_hs(#server_key_exchange{params = #server_dh_params{ dh_p = P, dh_g = G, dh_y = Y}, - signed_params = SignedParams}, _Version, _) -> + signed_params = SignedParams}, _Version) -> PLen = byte_size(P), GLen = byte_size(G), YLen = byte_size(Y), @@ -796,21 +992,21 @@ enc_hs(#server_key_exchange{params = #server_dh_params{ }; enc_hs(#certificate_request{certificate_types = CertTypes, certificate_authorities = CertAuths}, - _Version, _) -> + _Version) -> CertTypesLen = byte_size(CertTypes), CertAuthsLen = byte_size(CertAuths), {?CERTIFICATE_REQUEST, <<?BYTE(CertTypesLen), CertTypes/binary, ?UINT16(CertAuthsLen), CertAuths/binary>> }; -enc_hs(#server_hello_done{}, _Version, _) -> +enc_hs(#server_hello_done{}, _Version) -> {?SERVER_HELLO_DONE, <<>>}; -enc_hs(#client_key_exchange{exchange_keys = ExchangeKeys}, Version, _) -> +enc_hs(#client_key_exchange{exchange_keys = ExchangeKeys}, Version) -> {?CLIENT_KEY_EXCHANGE, enc_cke(ExchangeKeys, Version)}; -enc_hs(#certificate_verify{signature = BinSig}, _, _) -> +enc_hs(#certificate_verify{signature = BinSig}, _) -> EncSig = enc_bin_sig(BinSig), {?CERTIFICATE_VERIFY, EncSig}; -enc_hs(#finished{verify_data = VerifyData}, _Version, _) -> +enc_hs(#finished{verify_data = VerifyData}, _Version) -> {?FINISHED, VerifyData}. enc_cke(#encrypted_premaster_secret{premaster_secret = PKEPMS},{3, 0}) -> @@ -826,29 +1022,29 @@ enc_bin_sig(BinSig) -> Size = byte_size(BinSig), <<?UINT16(Size), BinSig/binary>>. -init_hashes() -> - T = {crypto:md5_init(), crypto:sha_init()}, - {T, T}. +%% Renegotiation info, only current extension +hello_extensions(#renegotiation_info{renegotiated_connection = undefined}) -> + []; +hello_extensions(#renegotiation_info{} = Info) -> + [Info]. + +enc_hello_extensions(Extensions) -> + enc_hello_extensions(Extensions, <<>>). +enc_hello_extensions([], <<>>) -> + <<>>; +enc_hello_extensions([], Acc) -> + Size = byte_size(Acc), + <<?UINT16(Size), Acc/binary>>; + +enc_hello_extensions([#renegotiation_info{renegotiated_connection = ?byte(0) = Info} | Rest], Acc) -> + Len = byte_size(Info), + enc_hello_extensions(Rest, <<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), Info/binary, Acc/binary>>); + +enc_hello_extensions([#renegotiation_info{renegotiated_connection = Info} | Rest], Acc) -> + InfoLen = byte_size(Info), + Len = InfoLen +1, + enc_hello_extensions(Rest, <<?UINT16(?RENEGOTIATION_EXT), ?UINT16(Len), ?BYTE(InfoLen), Info/binary, Acc/binary>>). -update_hashes(Hashes, % special-case SSL2 client hello - <<?CLIENT_HELLO, ?UINT24(_), ?BYTE(Major), ?BYTE(Minor), - ?UINT16(CSLength), ?UINT16(0), - ?UINT16(CDLength), - CipherSuites:CSLength/binary, - ChallengeData:CDLength/binary>>) -> - update_hashes(Hashes, - <<?CLIENT_HELLO, ?BYTE(Major), ?BYTE(Minor), - ?UINT16(CSLength), ?UINT16(0), - ?UINT16(CDLength), - CipherSuites:CSLength/binary, - ChallengeData:CDLength/binary>>); -update_hashes({{MD50, SHA0}, _Prev}, Data) -> - ?DBG_HEX(Data), - {MD51, SHA1} = {crypto:md5_update(MD50, Data), - crypto:sha_update(SHA0, Data)}, - ?DBG_HEX(crypto:md5_final(MD51)), - ?DBG_HEX(crypto:sha_final(SHA1)), - {{MD51, SHA1}, {MD50, SHA0}}. from_3bytes(Bin3) -> from_3bytes(Bin3, []). @@ -868,25 +1064,21 @@ from_2bytes(<<?UINT16(N), Rest/binary>>, Acc) -> certificate_types({KeyExchange, _, _, _}) when KeyExchange == rsa; - KeyExchange == dh_dss; - KeyExchange == dh_rsa; KeyExchange == dhe_dss; KeyExchange == dhe_rsa -> <<?BYTE(?RSA_SIGN), ?BYTE(?DSS_SIGN)>>; certificate_types(_) -> - %%TODO: Is this a good default, - %% is there a case where we like to request - %% a RSA_FIXED_DH or DSS_FIXED_DH <<?BYTE(?RSA_SIGN)>>. certificate_authorities(CertDbRef) -> Authorities = certificate_authorities_from_db(CertDbRef), Enc = fun(#'OTPCertificate'{tbsCertificate=TBSCert}) -> OTPSubj = TBSCert#'OTPTBSCertificate'.subject, - Subj = public_key:pkix_transform(OTPSubj, encode), - {ok, DNEncoded} = 'OTP-PUB-KEY':encode('Name', Subj), - DNEncodedBin = iolist_to_binary(DNEncoded), + DNEncodedBin = public_key:pkix_encode('Name', OTPSubj, otp), + %%Subj = public_key:pkix_transform(OTPSubj, encode), + %% {ok, DNEncoded} = 'OTP-PUB-KEY':encode('Name', Subj), + %% DNEncodedBin = iolist_to_binary(DNEncoded), DNEncodedLen = byte_size(DNEncodedBin), <<?UINT16(DNEncodedLen), DNEncodedBin/binary>> end, @@ -896,7 +1088,7 @@ certificate_authorities_from_db(CertDbRef) -> certificate_authorities_from_db(CertDbRef, no_candidate, []). certificate_authorities_from_db(CertDbRef, PrevKey, Acc) -> - case ssl_certificate_db:issuer_candidate(PrevKey) of + case ssl_manager:issuer_candidate(PrevKey) of no_more_candidates -> lists:reverse(Acc); {{CertDbRef, _, _} = Key, Cert} -> @@ -906,13 +1098,12 @@ certificate_authorities_from_db(CertDbRef, PrevKey, Acc) -> certificate_authorities_from_db(CertDbRef, Key, Acc) end. -digitally_signed(Hashes, #'RSAPrivateKey'{} = Key) -> - public_key:encrypt_private(Hashes, Key, +digitally_signed(Hash, #'RSAPrivateKey'{} = Key) -> + public_key:encrypt_private(Hash, Key, [{rsa_pad, rsa_pkcs1_padding}]); -digitally_signed(Hashes, #'DSAPrivateKey'{} = Key) -> - public_key:sign(Hashes, Key). - - +digitally_signed(Hash, #'DSAPrivateKey'{} = Key) -> + public_key:sign(Hash, none, Key). + calc_master_secret({3,0}, PremasterSecret, ClientRandom, ServerRandom) -> ssl_ssl3:master_secret(PremasterSecret, ClientRandom, ServerRandom); @@ -920,20 +1111,15 @@ calc_master_secret({3,N},PremasterSecret, ClientRandom, ServerRandom) when N == 1; N == 2 -> ssl_tls1:master_secret(PremasterSecret, ClientRandom, ServerRandom). -setup_keys({3,0}, Exportable, MasterSecret, +setup_keys({3,0}, MasterSecret, ServerRandom, ClientRandom, HashSize, KML, EKML, IVS) -> - ssl_ssl3:setup_keys(Exportable, MasterSecret, ServerRandom, + ssl_ssl3:setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, KML, EKML, IVS); -setup_keys({3,1}, _Exportable, MasterSecret, +setup_keys({3,1}, MasterSecret, ServerRandom, ClientRandom, HashSize, KML, _EKML, IVS) -> ssl_tls1:setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, - KML, IVS); - -setup_keys({3,2}, _Exportable, MasterSecret, - ServerRandom, ClientRandom, HashSize, KML, _EKML, _IVS) -> - ssl_tls1:setup_keys(MasterSecret, ServerRandom, - ClientRandom, HashSize, KML). + KML, IVS). calc_finished({3, 0}, Role, MasterSecret, Hashes) -> ssl_ssl3:finished(Role, MasterSecret, Hashes); @@ -947,36 +1133,6 @@ calc_certificate_verify({3, N}, _, Algorithm, Hashes) when N == 1; N == 2 -> ssl_tls1:certificate_verify(Algorithm, Hashes). -server_key_exchange_hash(Algorithm, Value) when Algorithm == rsa; - Algorithm == dh_rsa; - Algorithm == dhe_rsa -> - MD5Context = crypto:md5_init(), - NewMD5Context = crypto:md5_update(MD5Context, Value), - MD5 = crypto:md5_final(NewMD5Context), - - SHAContext = crypto:sha_init(), - NewSHAContext = crypto:sha_update(SHAContext, Value), - SHA = crypto:sha_final(NewSHAContext), - - <<MD5/binary, SHA/binary>>; - -server_key_exchange_hash(Algorithm, Value) when Algorithm == dh_dss; - Algorithm == dhe_dss -> - - SHAContext = crypto:sha_init(), - NewSHAContext = crypto:sha_update(SHAContext, Value), - crypto:sha_final(NewSHAContext). - - -sig_alg(dh_anon) -> - ?SIGNATURE_ANONYMOUS; -sig_alg(Alg) when Alg == dhe_rsa; Alg == rsa; Alg == dh_rsa -> - ?SIGNATURE_RSA; -sig_alg(Alg) when Alg == dh_dss; Alg == dhe_dss -> - ?SIGNATURE_DSA; -sig_alg(_) -> - ?NULL. - key_exchange_alg(rsa) -> ?KEY_EXCHANGE_RSA; key_exchange_alg(Alg) when Alg == dhe_rsa; Alg == dhe_dss; @@ -984,3 +1140,18 @@ key_exchange_alg(Alg) when Alg == dhe_rsa; Alg == dhe_dss; ?KEY_EXCHANGE_DIFFIE_HELLMAN; key_exchange_alg(_) -> ?NULL. + +apply_user_fun(Fun, OtpCert, ExtensionOrError, UserState0, SslState) -> + case Fun(OtpCert, ExtensionOrError, UserState0) of + {valid, UserState} -> + {valid, {SslState, UserState}}; + {fail, _} = Fail -> + Fail; + {unknown, UserState} -> + {unknown, {SslState, UserState}} + end. + +alg_oid(#'RSAPrivateKey'{}) -> + ?'rsaEncryption'; +alg_oid(#'DSAPrivateKey'{}) -> + ?'id-dsa'. diff --git a/lib/ssl/src/ssl_handshake.hrl b/lib/ssl/src/ssl_handshake.hrl index 889d39f2af..fb0ebac7d1 100644 --- a/lib/ssl/src/ssl_handshake.hrl +++ b/lib/ssl/src/ssl_handshake.hrl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% Copyright Ericsson AB 2007-2011. All Rights Reserved. %% %% 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 @@ -26,9 +26,16 @@ -ifndef(ssl_handshake). -define(ssl_handshake, true). +-include_lib("public_key/include/public_key.hrl"). + +-type algo_oid() :: ?'rsaEncryption' | ?'id-dsa'. +-type public_key_params() :: #'Dss-Parms'{} | term(). +-type public_key_info() :: {algo_oid(), #'RSAPublicKey'{} | integer() , public_key_params()}. + -record(session, { session_id, peer_certificate, + own_certificate, compression_method, cipher_suite, master_secret, @@ -81,7 +88,8 @@ random, session_id, % opaque SessionID<0..32> cipher_suites, % cipher_suites<2..2^16-1> - compression_methods % compression_methods<1..2^8-1> + compression_methods, % compression_methods<1..2^8-1>, + renegotiation_info }). -record(server_hello, { @@ -89,7 +97,8 @@ random, session_id, % opaque SessionID<0..32> cipher_suite, % cipher_suites - compression_method % compression_method + compression_method, % compression_method + renegotiation_info }). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -195,6 +204,15 @@ verify_data %opaque verify_data[12] }). +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% Renegotiation info RFC 5746 section 3.2 +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +-define(RENEGOTIATION_EXT, 16#ff01). + +-record(renegotiation_info,{ + renegotiated_connection + }). + -endif. % -ifdef(ssl_handshake). diff --git a/lib/ssl/src/ssl_internal.hrl b/lib/ssl/src/ssl_internal.hrl index 8d19abfe1e..c28daa271e 100644 --- a/lib/ssl/src/ssl_internal.hrl +++ b/lib/ssl/src/ssl_internal.hrl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% Copyright Ericsson AB 2007-2011. All Rights Reserved. %% %% 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 @@ -19,10 +19,29 @@ %% - -ifndef(ssl_internal). -define(ssl_internal, true). +-include_lib("public_key/include/public_key.hrl"). + +-type reason() :: term(). +-type reply() :: term(). +-type msg() :: term(). +-type from() :: term(). +-type host() :: string() | tuple(). +-type port_num() :: integer(). +-type session_id() :: 0 | binary(). +-type tls_version() :: {integer(), integer()}. +-type tls_atom_version() :: sslv3 | tlsv1. +-type cache_ref() :: term(). +-type certdb_ref() :: term(). +-type key_algo() :: null | rsa | dhe_rsa | dhe_dss | dh_anon. +-type der_cert() :: binary(). +-type private_key() :: #'RSAPrivateKey'{} | #'DSAPrivateKey'{}. +-type issuer() :: tuple(). +-type serialnumber() :: integer(). +-type cert_key() :: {reference(), integer(), issuer()}. + %% basic binary constructors -define(BOOLEAN(X), X:8/unsigned-big-integer). -define(BYTE(X), X:8/unsigned-big-integer). @@ -61,10 +80,13 @@ validate_extensions_fun, depth, % integer() certfile, % file() + cert, % der_encoded() keyfile, % file() - key, % + key, % der_encoded() password, % + cacerts, % [der_encoded()] cacertfile, % file() + dh, % der_encoded() dhfile, % file() ciphers, % %% Local policy for the server if it want's to reuse the session @@ -75,7 +97,12 @@ %% will be reused if possible. reuse_sessions, % boolean() renegotiate_at, - debug % + secure_renegotiate, + debug, + hibernate_after % undefined if not hibernating, + % or number of ms of inactivity + % after which ssl_connection will + % go into hibernation }). -record(socket_options, diff --git a/lib/ssl/src/ssl_manager.erl b/lib/ssl/src/ssl_manager.erl index 0151426d43..1bbb03bdde 100644 --- a/lib/ssl/src/ssl_manager.erl +++ b/lib/ssl/src/ssl_manager.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2010. All Rights Reserved. +%% Copyright Ericsson AB 2007-2011. All Rights Reserved. %% %% 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 @@ -24,10 +24,13 @@ -module(ssl_manager). -behaviour(gen_server). +-include("ssl_internal.hrl"). + %% Internal application API --export([start_link/0, start_link/1, +-export([start_link/1, connection_init/2, cache_pem_file/1, - lookup_trusted_cert/3, client_session_id/3, server_session_id/3, + lookup_trusted_cert/3, issuer_candidate/1, client_session_id/4, + server_session_id/4, register_session/2, register_session/3, invalidate_session/2, invalidate_session/3]). @@ -40,6 +43,7 @@ -include("ssl_handshake.hrl"). -include("ssl_internal.hrl"). +-include_lib("kernel/include/file.hrl"). -record(state, { session_cache, @@ -53,68 +57,96 @@ -define('24H_in_sec', 8640). -define(SESSION_VALIDATION_INTERVAL, 60000). -define(CERTIFICATE_CACHE_CLEANUP, 30000). +-define(CLEAN_SESSION_DB, 60000). %%==================================================================== %% API %%==================================================================== %%-------------------------------------------------------------------- -%% Function: start_link() -> {ok,Pid} | ignore | {error,Error} +-spec start_link(list()) -> {ok, pid()} | ignore | {error, term()}. +%% %% Description: Starts the server %%-------------------------------------------------------------------- -start_link() -> - gen_server:start_link({local, ?MODULE}, ?MODULE, [], []). start_link(Opts) -> gen_server:start_link({local, ?MODULE}, ?MODULE, [Opts], []). %%-------------------------------------------------------------------- -%% Function: -%% Description: +-spec connection_init(string()| {der, list()}, client | server) -> + {ok, reference(), cache_ref()}. +%% +%% Description: Do necessary initializations for a new connection. %%-------------------------------------------------------------------- -connection_init(TrustedcertsFile, Role) -> - call({connection_init, TrustedcertsFile, Role}). - -cache_pem_file(File) -> - case ssl_certificate_db:lookup_cached_certs(File) of - [{_,Content}] -> - {ok, Content}; - [] -> - call({cache_pem, File}) - end. - +connection_init(Trustedcerts, Role) -> + call({connection_init, Trustedcerts, Role}). +%%-------------------------------------------------------------------- +-spec cache_pem_file(string()) -> {ok, term()} | {error, reason()}. +%% +%% Description: Cach a pem file and return its content. %%-------------------------------------------------------------------- -%% Function: -%% Description: +cache_pem_file(File) -> + try file:read_file_info(File) of + {ok, #file_info{mtime = LastWrite}} -> + cache_pem_file(File, LastWrite) + catch + _:Reason -> + {error, Reason} + end. %%-------------------------------------------------------------------- -lookup_trusted_cert(SerialNumber, Issuer, Ref) -> +-spec lookup_trusted_cert(reference(), serialnumber(), issuer()) -> + undefined | + {ok, {der_cert(), #'OTPCertificate'{}}}. +%% +%% Description: Lookup the trusted cert with Key = {reference(), +%% serialnumber(), issuer()}. +%% -------------------------------------------------------------------- +lookup_trusted_cert(Ref, SerialNumber, Issuer) -> ssl_certificate_db:lookup_trusted_cert(Ref, SerialNumber, Issuer). - %%-------------------------------------------------------------------- -%% Function: -%% Description: +-spec issuer_candidate(cert_key() | no_candidate) -> + {cert_key(), + {der_cert(), + #'OTPCertificate'{}}} | no_more_candidates. +%% +%% Description: Return next issuer candidate. %%-------------------------------------------------------------------- -client_session_id(Host, Port, SslOpts) -> - call({client_session_id, Host, Port, SslOpts}). - +issuer_candidate(PrevCandidateKey) -> + ssl_certificate_db:issuer_candidate(PrevCandidateKey). %%-------------------------------------------------------------------- -%% Function: -%% Description: +-spec client_session_id(host(), port_num(), #ssl_options{}, + der_cert() | undefined) -> session_id(). +%% +%% Description: Select a session id for the client. %%-------------------------------------------------------------------- -server_session_id(Port, SuggestedSessionId, SslOpts) -> - call({server_session_id, Port, SuggestedSessionId, SslOpts}). +client_session_id(Host, Port, SslOpts, OwnCert) -> + call({client_session_id, Host, Port, SslOpts, OwnCert}). %%-------------------------------------------------------------------- -%% Function: -%% Description: +-spec server_session_id(host(), port_num(), #ssl_options{}, + der_cert()) -> session_id(). +%% +%% Description: Select a session id for the server. +%%-------------------------------------------------------------------- +server_session_id(Port, SuggestedSessionId, SslOpts, OwnCert) -> + call({server_session_id, Port, SuggestedSessionId, SslOpts, OwnCert}). + +%%-------------------------------------------------------------------- +-spec register_session(port_num(), #session{}) -> ok. +-spec register_session(host(), port_num(), #session{}) -> ok. +%% +%% Description: Make the session available for reuse. %%-------------------------------------------------------------------- register_session(Host, Port, Session) -> cast({register_session, Host, Port, Session}). register_session(Port, Session) -> cast({register_session, Port, Session}). - %%-------------------------------------------------------------------- -%% Function: -%% Description: +-spec invalidate_session(port_num(), #session{}) -> ok. +-spec invalidate_session(host(), port_num(), #session{}) -> ok. +%% +%% Description: Make the session unavailable for reuse. After +%% a the session has been marked "is_resumable = false" for some while +%% it will be safe to remove the data from the session database. %%-------------------------------------------------------------------- invalidate_session(Host, Port, Session) -> cast({invalidate_session, Host, Port, Session}). @@ -127,34 +159,36 @@ invalidate_session(Port, Session) -> %%==================================================================== %%-------------------------------------------------------------------- -%% Function: init(Args) -> {ok, State} | -%% {ok, State, Timeout} | -%% ignore | -%% {stop, Reason} +-spec init(list()) -> {ok, #state{}}. +%% Possible return values not used now. +%% | {ok, #state{}, timeout()} | ignore | {stop, term()}. +%% %% Description: Initiates the server %%-------------------------------------------------------------------- -init(Opts) -> +init([Opts]) -> process_flag(trap_exit, true), - CacheCb = proplists:get_value(session_cache, Opts, ssl_session_cache), + CacheCb = proplists:get_value(session_cb, Opts, ssl_session_cache), SessionLifeTime = proplists:get_value(session_lifetime, Opts, ?'24H_in_sec'), CertDb = ssl_certificate_db:create(), - SessionCache = CacheCb:init(), + SessionCache = CacheCb:init(proplists:get_value(session_cb_init_args, Opts, [])), Timer = erlang:send_after(SessionLifeTime * 1000, self(), validate_sessions), {ok, #state{certificate_db = CertDb, session_cache = SessionCache, session_cache_cb = CacheCb, - session_lifetime = SessionLifeTime , + session_lifetime = SessionLifeTime, session_validation_timer = Timer}}. %%-------------------------------------------------------------------- -%% Function: %% handle_call(Request, From, State) -> {reply, Reply, State} | -%% {reply, Reply, State, Timeout} | -%% {noreply, State} | -%% {noreply, State, Timeout} | -%% {stop, Reason, Reply, State} | -%% {stop, Reason, State} +-spec handle_call(msg(), from(), #state{}) -> {reply, reply(), #state{}}. +%% Possible return values not used now. +%% {reply, reply(), #state{}, timeout()} | +%% {noreply, #state{}} | +%% {noreply, #state{}, timeout()} | +%% {stop, reason(), reply(), #state{}} | +%% {stop, reason(), #state{}}. +%% %% Description: Handling call messages %%-------------------------------------------------------------------- handle_call({{connection_init, "", _Role}, Pid}, _From, @@ -163,52 +197,55 @@ handle_call({{connection_init, "", _Role}, Pid}, _From, Result = {ok, make_ref(), Cache}, {reply, Result, State}; -handle_call({{connection_init, TrustedcertsFile, _Role}, Pid}, _From, +handle_call({{connection_init, Trustedcerts, _Role}, Pid}, _From, #state{certificate_db = Db, session_cache = Cache} = State) -> erlang:monitor(process, Pid), Result = try - {ok, Ref} = ssl_certificate_db:add_trusted_certs(Pid, TrustedcertsFile, Db), + {ok, Ref} = ssl_certificate_db:add_trusted_certs(Pid, Trustedcerts, Db), {ok, Ref, Cache} catch - _:{badmatch, Error} -> - {error, Error}; - _E:_R -> - {error, {_R,erlang:get_stacktrace()}} + _:Reason -> + {error, Reason} end, {reply, Result, State}; -handle_call({{client_session_id, Host, Port, SslOpts}, _}, _, +handle_call({{client_session_id, Host, Port, SslOpts, OwnCert}, _}, _, #state{session_cache = Cache, session_cache_cb = CacheCb} = State) -> - Id = ssl_session:id({Host, Port, SslOpts}, Cache, CacheCb), + Id = ssl_session:id({Host, Port, SslOpts}, Cache, CacheCb, OwnCert), {reply, Id, State}; -handle_call({{server_session_id, Port, SuggestedSessionId, SslOpts}, _}, +handle_call({{server_session_id, Port, SuggestedSessionId, SslOpts, OwnCert}, _}, _, #state{session_cache_cb = CacheCb, session_cache = Cache, session_lifetime = LifeTime} = State) -> Id = ssl_session:id(Port, SuggestedSessionId, SslOpts, - Cache, CacheCb, LifeTime), + Cache, CacheCb, LifeTime, OwnCert), {reply, Id, State}; -handle_call({{cache_pem, File},Pid}, _, State = #state{certificate_db = Db}) -> - try ssl_certificate_db:cache_pem_file(Pid,File,Db) of +handle_call({{cache_pem, File, LastWrite}, Pid}, _, + #state{certificate_db = Db} = State) -> + try ssl_certificate_db:cache_pem_file(Pid, File, LastWrite, Db) of Result -> {reply, Result, State} - catch _:{badmatch, Reason} -> - {reply, Reason, State}; - _:Reason -> + catch + _:Reason -> {reply, {error, Reason}, State} end; - -handle_call(_,_, State) -> - {reply, ok, State}. +handle_call({{recache_pem, File, LastWrite}, Pid}, From, + #state{certificate_db = Db} = State) -> + ssl_certificate_db:uncache_pem_file(File, Db), + cast({recache_pem, File, LastWrite, Pid, From}), + {noreply, State}. + %%-------------------------------------------------------------------- -%% Function: handle_cast(Msg, State) -> {noreply, State} | -%% {noreply, State, Timeout} | -%% {stop, Reason, State} +-spec handle_cast(msg(), #state{}) -> {noreply, #state{}}. +%% Possible return values not used now. +%% | {noreply, #state{}, timeout()} | +%% {stop, reason(), #state{}}. +%% %% Description: Handling cast messages %%-------------------------------------------------------------------- handle_cast({register_session, Host, Port, Session}, @@ -229,22 +266,41 @@ handle_cast({register_session, Port, Session}, {noreply, State}; handle_cast({invalidate_session, Host, Port, - #session{session_id = ID}}, + #session{session_id = ID} = Session}, #state{session_cache = Cache, session_cache_cb = CacheCb} = State) -> - CacheCb:delete(Cache, {{Host, Port}, ID}), + CacheCb:update(Cache, {{Host, Port}, ID}, Session#session{is_resumable = false}), + timer:apply_after(?CLEAN_SESSION_DB, CacheCb, delete, [{{Host, Port}, ID}]), {noreply, State}; -handle_cast({invalidate_session, Port, #session{session_id = ID}}, +handle_cast({invalidate_session, Port, #session{session_id = ID} = Session}, #state{session_cache = Cache, session_cache_cb = CacheCb} = State) -> - CacheCb:delete(Cache, {Port, ID}), - {noreply, State}. + CacheCb:update(Cache, {Port, ID}, Session#session{is_resumable = false}), + timer:apply_after(?CLEAN_SESSION_DB, CacheCb, delete, [{Port, ID}]), + {noreply, State}; + +handle_cast({recache_pem, File, LastWrite, Pid, From}, + #state{certificate_db = [_, FileToRefDb, _]} = State0) -> + case ssl_certificate_db:lookup(File, FileToRefDb) of + undefined -> + {reply, Msg, State} = + handle_call({{cache_pem, File, LastWrite}, Pid}, From, State0), + gen_server:reply(From, Msg), + {noreply, State}; + _ -> %% Send message to self letting cleanup messages be handled + %% first so that no reference to the old version of file + %% exists when we cache the new one. + cast({recache_pem, File, LastWrite, Pid, From}), + {noreply, State0} + end. %%-------------------------------------------------------------------- -%% Function: handle_info(Info, State) -> {noreply, State} | -%% {noreply, State, Timeout} | -%% {stop, Reason, State} +-spec handle_info(msg(), #state{}) -> {noreply, #state{}}. +%% Possible return values not used now. +%% |{noreply, #state{}, timeout()} | +%% {stop, reason(), #state{}}. +%% %% Description: Handling all non call/cast messages %%-------------------------------------------------------------------- handle_info(validate_sessions, #state{session_cache_cb = CacheCb, @@ -264,12 +320,14 @@ handle_info({'EXIT', _, _}, State) -> handle_info({'DOWN', _Ref, _Type, _Pid, ecacertfile}, State) -> {noreply, State}; +handle_info({'DOWN', _Ref, _Type, Pid, shutdown}, State) -> + handle_info({remove_trusted_certs, Pid}, State); handle_info({'DOWN', _Ref, _Type, Pid, _Reason}, State) -> erlang:send_after(?CERTIFICATE_CACHE_CLEANUP, self(), {remove_trusted_certs, Pid}), {noreply, State}; handle_info({remove_trusted_certs, Pid}, - State = #state{certificate_db = Db}) -> + #state{certificate_db = Db} = State) -> ssl_certificate_db:remove_trusted_certs(Pid, Db), {noreply, State}; @@ -277,7 +335,8 @@ handle_info(_Info, State) -> {noreply, State}. %%-------------------------------------------------------------------- -%% Function: terminate(Reason, State) -> void() +-spec terminate(reason(), #state{}) -> term(). +%% %% Description: This function is called by a gen_server 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_server terminates with Reason. @@ -293,7 +352,8 @@ terminate(_Reason, #state{certificate_db = Db, ok. %%-------------------------------------------------------------------- -%% Func: code_change(OldVsn, State, Extra) -> {ok, NewState} +-spec code_change(term(), #state{}, list()) -> {ok, #state{}}. +%% %% Description: Convert process state when code is changed %%-------------------------------------------------------------------- code_change(_OldVsn, State, _Extra) -> @@ -332,10 +392,22 @@ init_session_validator([Cache, CacheCb, LifeTime]) -> CacheCb:foldl(fun session_validation/2, LifeTime, Cache). -session_validation({{Host, Port, _}, Session}, LifeTime) -> +session_validation({{{Host, Port}, _}, Session}, LifeTime) -> validate_session(Host, Port, Session, LifeTime), LifeTime; session_validation({{Port, _}, Session}, LifeTime) -> validate_session(Port, Session, LifeTime), LifeTime. - + +cache_pem_file(File, LastWrite) -> + case ssl_certificate_db:lookup_cached_certs(File) of + [{_, {Mtime, Content}}] -> + case LastWrite of + Mtime -> + {ok, Content}; + _ -> + call({recache_pem, File, LastWrite}) + end; + [] -> + call({cache_pem, File, LastWrite}) + end. diff --git a/lib/ssl/src/ssl_pem.erl b/lib/ssl/src/ssl_pem.erl deleted file mode 100644 index 0a1bf0f32a..0000000000 --- a/lib/ssl/src/ssl_pem.erl +++ /dev/null @@ -1,147 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2003-2009. All Rights Reserved. -%% -%% 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. -%% -%% %CopyrightEnd% -%% - -%% - --module(ssl_pem). - -%%% Purpose: Reading and writing of PEM type encoded files for SSL. - -%% NB write_file/2 is only preliminary. - -%% PEM encoded files have the following structure: -%% -%% <text> -%% -----BEGIN SOMETHING-----<CR><LF> -%% <Base64 encoding line><CR><LF> -%% <Base64 encoding line><CR><LF> -%% ... -%% -----END SOMETHING-----<CR><LF> -%% <text> -%% -%% A file can contain several BEGIN/END blocks. Text lines between -%% blocks are ignored. - --export([read_file/1, read_file/2, write_file/2]). - -%% Read a PEM file and return each decoding as a binary. - -read_file(File) -> - read_file(File, no_passwd). - -read_file(File, Passwd) -> - {ok, Fd} = file:open(File, [read]), - Result = decode_file(Fd, Passwd), - file:close(Fd), - Result. - -decode_file(Fd, Passwd) -> - decode_file(Fd, [], [], notag, [Passwd]). - -decode_file(Fd, _RLs, Ens, notag, Info) -> - case io:get_line(Fd, "") of - "-----BEGIN CERTIFICATE REQUEST-----" ++ _ -> - decode_file(Fd, [], Ens, cert_req, Info); - "-----BEGIN CERTIFICATE-----" ++ _ -> - decode_file(Fd, [], Ens, cert, Info); - "-----BEGIN RSA PRIVATE KEY-----" ++ _ -> - decode_file(Fd, [], Ens, rsa_private_key, Info); - eof -> - {ok, lists:reverse(Ens)}; - _ -> - decode_file(Fd, [], Ens, notag, Info) - end; -decode_file(Fd, RLs, Ens, Tag, Info0) -> - case io:get_line(Fd, "") of - "Proc-Type: 4,ENCRYPTED"++_ -> - Info = dek_info(Fd, Info0), - decode_file(Fd, RLs, Ens, Tag, Info); - "-----END" ++ _ -> % XXX sloppy - Cs = lists:flatten(lists:reverse(RLs)), - Bin = ssl_base64:join_decode(Cs), - case Info0 of - [Password, Cipher, SaltHex | Info1] -> - Decoded = decode_key(Bin, Password, Cipher, unhex(SaltHex)), - decode_file(Fd, [], [{Tag, Decoded}| Ens], notag, Info1); - _ -> - decode_file(Fd, [], [{Tag, Bin}| Ens], notag, Info0) - end; - eof -> - {ok, lists:reverse(Ens)}; - L -> - decode_file(Fd, [L|RLs], Ens, Tag, Info0) - end. - -dek_info(Fd, Info) -> - Line = io:get_line(Fd, ""), - [_, DekInfo0] = string:tokens(Line, ": "), - DekInfo1 = string:tokens(DekInfo0, ",\n"), - Info ++ DekInfo1. - -unhex(S) -> - unhex(S, []). - -unhex("", Acc) -> - lists:reverse(Acc); -unhex([D1, D2 | Rest], Acc) -> - unhex(Rest, [erlang:list_to_integer([D1, D2], 16) | Acc]). - -decode_key(Data, Password, "DES-CBC", Salt) -> - Key = password_to_key(Password, Salt, 8), - IV = Salt, - crypto:des_cbc_decrypt(Key, IV, Data); -decode_key(Data, Password, "DES-EDE3-CBC", Salt) -> - Key = password_to_key(Password, Salt, 24), - IV = Salt, - <<Key1:8/binary, Key2:8/binary, Key3:8/binary>> = Key, - crypto:des_ede3_cbc_decrypt(Key1, Key2, Key3, IV, Data). - -write_file(File, Ds) -> - file:write_file(File, encode_file(Ds)). - -encode_file(Ds) -> - [encode_file_1(D) || D <- Ds]. - -encode_file_1({cert, Bin}) -> - %% PKIX (X.509) - ["-----BEGIN CERTIFICATE-----\n", - ssl_base64:encode_split(Bin), - "-----END CERTIFICATE-----\n\n"]; -encode_file_1({cert_req, Bin}) -> - %% PKCS#10 - ["-----BEGIN CERTIFICATE REQUEST-----\n", - ssl_base64:encode_split(Bin), - "-----END CERTIFICATE REQUEST-----\n\n"]; -encode_file_1({rsa_private_key, Bin}) -> - %% PKCS#? - ["XXX Following key assumed not encrypted\n", - "-----BEGIN RSA PRIVATE KEY-----\n", - ssl_base64:encode_split(Bin), - "-----END RSA PRIVATE KEY-----\n\n"]. - -password_to_key(Data, Salt, KeyLen) -> - <<Key:KeyLen/binary, _/binary>> = - password_to_key(<<>>, Data, Salt, KeyLen, <<>>), - Key. - -password_to_key(_, _, _, Len, Acc) when Len =< 0 -> - Acc; -password_to_key(Prev, Data, Salt, Len, Acc) -> - M = crypto:md5([Prev, Data, Salt]), - password_to_key(M, Data, Salt, Len - byte_size(M), <<Acc/binary, M/binary>>). diff --git a/lib/ssl/src/ssl_pkix.erl b/lib/ssl/src/ssl_pkix.erl deleted file mode 100644 index 8f540f74ad..0000000000 --- a/lib/ssl/src/ssl_pkix.erl +++ /dev/null @@ -1,307 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2003-2009. All Rights Reserved. -%% -%% 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. -%% -%% %CopyrightEnd% -%% - -%%% Purpose : API module for decoding of certificates. - --module(ssl_pkix). - --include("ssl_pkix.hrl"). - --export([decode_cert_file/1, decode_cert_file/2, - decode_cert/1, decode_cert/2, encode_cert/1, encoded_tbs_cert/1, - signature_digest/1, decode_rsa_keyfile/2]). - -%% The public API is dprecated by public_key and -%% the internal application API is no longer used ssl. -%% So this file can be compleatly removed in R14. --deprecated({decode_cert_file, 1, next_major_release}). --deprecated({decode_cert_file, 2, next_major_release}). --deprecated({decode_cert, 1, next_major_release}). --deprecated({decode_cert, 2, next_major_release}). - -%%==================================================================== -%% API -%%==================================================================== - -%%-------------------------------------------------------------------- -%% Function: decode_cert_file(File, <Opts>) -> {ok, Cert} | {ok, [Cert]} -%% -%% File = string() -%% Opts = [Opt] -%% Opt = pem | ssl | pkix - ssl and pkix are mutual exclusive -%% Cert = term() -%% -%% Description: Decodes certificats found in file <File>. -%% If the options list is empty the certificate is -%% returned as a DER encoded binary, i.e. {ok, Bin} is returned, where -%% Bin> is the provided input. The options pkix and ssl imply that the -%% certificate is returned as a parsed ASN.1 structure in the form of -%% an Erlang term. The ssl option gives a more elaborate return -%% structure, with more explicit information. In particular object -%% identifiers are replaced by atoms. The option subject implies that -%% only the subject's distinguished name part of the certificate is -%% returned. It can only be used together with the option pkix or the -%% option ssl. -%%-------------------------------------------------------------------- -decode_cert_file(File) -> - decode_cert_file(File, []). - -decode_cert_file(File, Opts) -> - case lists:member(pem, Opts) of - true -> - {ok, List} = ssl_pem:read_file(File), - Certs = [Bin || {cert, Bin} <- List], - NewOpts = lists:delete(pem, Opts), - Fun = fun(Cert) -> - {ok, Decoded} = decode_cert(Cert, NewOpts), - Decoded - end, - case lists:map(Fun, Certs) of - [DecodedCert] -> - {ok, DecodedCert}; - DecodedCerts -> - {ok, DecodedCerts} - end; - false -> - {ok, Bin} = file:read_file(File), - decode_cert(Bin, Opts) - end. -%%-------------------------------------------------------------------- -%% Function: decode_cert(Bin, <Opts>) -> {ok, Cert} -%% Bin - binary() -%% Opts = [Opt] -%% Opt = ssl | pkix | subject - ssl and pkix are mutual exclusive -%% Cert = term() -%% -%% Description: If the options list is empty the certificate is -%% returned as a DER encoded binary, i.e. {ok, Bin} is returned, where -%% Bin> is the provided input. The options pkix and ssl imply that the -%% certificate is returned as a parsed ASN.1 structure in the form of -%% an Erlang term. The ssl option gives a more elaborate return -%% structure, with more explicit information. In particular object -%% identifiers are replaced by atoms. The option subject implies that -%% only the subject's distinguished name part of the certificate is -%% returned. It can only be used together with the option pkix or the -%% option ssl. -%%-------------------------------------------------------------------- -decode_cert(Bin) -> - decode_cert(Bin, []). - -decode_cert(Bin, []) when is_binary(Bin) -> - {ok, Bin}; -decode_cert(Bin, Opts) when is_binary(Bin) -> - - {ok, Cert} = 'OTP-PKIX':decode('Certificate', Bin), - - case {lists:member(ssl, Opts), lists:member(pkix, Opts)} of - {true, false} -> - cert_return(transform(Cert, ssl), Opts); - {false, true} -> - cert_return(transform(Cert, pkix), Opts); - _ -> - {error, eoptions} - end. - -encode_cert(#'Certificate'{} = Cert) -> - {ok, List} = 'OTP-PKIX':encode('Certificate', Cert), - list_to_binary(List). - -decode_rsa_keyfile(KeyFile, Password) -> - {ok, List} = ssl_pem:read_file(KeyFile, Password), - [PrivatKey] = [Bin || {rsa_private_key, Bin} <- List], - 'OTP-PKIX':decode('RSAPrivateKey', PrivatKey). - -%%==================================================================== -%% Application internal API -%%==================================================================== - -%%-------------------------------------------------------------------- -%% Function: encoded_tbs_cert(Cert) -> PKXCert -%% -%% Cert = binary() - Der encoded -%% PKXCert = binary() - Der encoded -%% -%% Description: Extracts the binary TBSCert from the binary Certificate. -%%-------------------------------------------------------------------- -encoded_tbs_cert(Cert) -> - {ok, PKIXCert} = - 'OTP-PKIX':decode_TBSCert_exclusive(Cert), - {'Certificate', - {'Certificate_tbsCertificate', EncodedTBSCert}, _, _} = PKIXCert, - EncodedTBSCert. - -%%-------------------------------------------------------------------- -%%% Internal functions -%%-------------------------------------------------------------------- - -cert_return(Cert, Opts) -> - case lists:member(subject, Opts) of - true -> - {ok, get_subj(Cert)}; - false -> - {ok, Cert} - end. - - -%% Transfrom from PKIX1-Explicit88 to SSL-PKIX. - -transform(#'Certificate'{signature = Signature, - signatureAlgorithm = SignatureAlgorithm, - tbsCertificate = TbsCertificate} = Cert, Type) -> - Cert#'Certificate'{tbsCertificate = transform(TbsCertificate, Type), - signatureAlgorithm = transform(SignatureAlgorithm, Type), - signature = transform(Signature, Type)}; - -%% -record('TBSCertificate',{ -%% version = asn1_DEFAULT, serialNumber, signature, issuer, validity, subject, -%% subjectPublicKeyInfo, issuerUniqueID = asn1_NOVALUE, -%% subjectUniqueID = asn1_NOVALUE, extensions = asn1_NOVALUE}). - -transform(#'TBSCertificate'{signature = Signature, issuer = Issuer, - subject = Subject, extensions = Extensions, - subjectPublicKeyInfo = SPKInfo} = TBSCert, Type) -> - TBSCert#'TBSCertificate'{signature = transform(Signature, Type), - issuer = transform(Issuer, Type), - subject = transform(Subject, Type), - subjectPublicKeyInfo = transform(SPKInfo, Type), - extensions = transform_extensions(Extensions, Type) - }; - -transform(#'AlgorithmIdentifier'{algorithm = Algorithm, - parameters = Params}, ssl) -> - SignAlgAny = - #'SignatureAlgorithm-Any'{algorithm = Algorithm, parameters = Params}, - {ok, AnyEnc} = 'OTP-PKIX':encode('SignatureAlgorithm-Any', SignAlgAny), - {ok, SignAlgCd} = 'OTP-PKIX':decode('SignatureAlgorithm', - list_to_binary(AnyEnc)), - NAlgo = ssl_pkix_oid:id2atom(SignAlgCd#'SignatureAlgorithm'.algorithm), - SignAlgCd#'SignatureAlgorithm'{algorithm = NAlgo}; - -transform({rdnSequence, Lss}, Type) when is_list(Lss) -> - {rdnSequence, [[transform(L, Type) || L <- Ls] || Ls <- Lss]}; -transform({rdnSequence, Lss}, _) -> - {rdnSequence, Lss}; - -transform(#'AttributeTypeAndValue'{} = ATAV, ssl) -> - {ok, ATAVEnc} = - 'OTP-PKIX':encode('AttributeTypeAndValue', ATAV), - {ok, ATAVDec} = 'OTP-PKIX':decode('SSLAttributeTypeAndValue', - list_to_binary(ATAVEnc)), - AttrType = ATAVDec#'SSLAttributeTypeAndValue'.type, - #'AttributeTypeAndValue'{type = ssl_pkix_oid:id2atom(AttrType), - value = - ATAVDec#'SSLAttributeTypeAndValue'.value}; - -transform(#'AttributeTypeAndValue'{} = Att, pkix) -> - Att; - -%% -record('SubjectPublicKeyInfo',{ -%% algorithm, subjectPublicKey}). -%% -%% -record('SubjectPublicKeyInfo_algorithm',{ -%% algo, parameters = asn1_NOVALUE}). -%% -%% -record('SubjectPublicKeyInfo-Any',{ -%% algorithm, subjectPublicKey}). -%% -%% -record('PublicKeyAlgorithm',{ -%% algorithm, parameters = asn1_NOVALUE}). - -transform(#'SubjectPublicKeyInfo'{subjectPublicKey = SubjectPublicKey, - algorithm = Algorithm}, ssl) -> - %% Transform from SubjectPublicKeyInfo (PKIX1Explicit88) - %% to SubjectPublicKeyInfo-Any (SSL-PKIX). - Algo = Algorithm#'AlgorithmIdentifier'.algorithm, - Parameters = Algorithm#'AlgorithmIdentifier'.parameters, - AlgorithmAny = #'PublicKeyAlgorithm'{algorithm = Algo, - parameters = Parameters}, - {0, Bin} = SubjectPublicKey, - SInfoAny = #'SSLSubjectPublicKeyInfo-Any'{algorithm = AlgorithmAny, - subjectPublicKey = Bin}, - - %% Encode according to SubjectPublicKeyInfo-Any, and decode according - %% to SubjectPublicKeyInfo. - {ok, AnyEnc} = - 'OTP-PKIX':encode('SSLSubjectPublicKeyInfo-Any', SInfoAny), - {ok, SInfoCd} = 'OTP-PKIX':decode('SSLSubjectPublicKeyInfo', - list_to_binary(AnyEnc)), - %% Replace object identifier by atom - AlgorithmCd = SInfoCd#'SSLSubjectPublicKeyInfo'.algorithm, - AlgoCd = AlgorithmCd#'SSLSubjectPublicKeyInfo_algorithm'.algo, - Params = AlgorithmCd#'SSLSubjectPublicKeyInfo_algorithm'.parameters, - Key = SInfoCd#'SSLSubjectPublicKeyInfo'.subjectPublicKey, - NAlgoCd = ssl_pkix_oid:id2atom(AlgoCd), - NAlgorithmCd = - #'SubjectPublicKeyInfo_algorithm'{algorithm = NAlgoCd, - parameters = Params}, - #'SubjectPublicKeyInfo'{algorithm = NAlgorithmCd, - subjectPublicKey = Key - }; -transform(#'SubjectPublicKeyInfo'{} = SInfo, pkix) -> - SInfo; - -transform(#'Extension'{extnID = ExtnID} = Ext, ssl) -> - NewExtID = ssl_pkix_oid:id2atom(ExtnID), - ExtAny = setelement(1, Ext, 'Extension-Any'), - {ok, AnyEnc} = 'OTP-PKIX':encode('Extension-Any', ExtAny), - {ok, ExtCd} = 'OTP-PKIX':decode('SSLExtension', list_to_binary(AnyEnc)), - - ExtValue = transform_extension_value(NewExtID, - ExtCd#'SSLExtension'.extnValue, - ssl), - #'Extension'{extnID = NewExtID, - critical = ExtCd#'SSLExtension'.critical, - extnValue = ExtValue}; - -transform(#'Extension'{extnID = ExtnID, extnValue = ExtnValue} = Ext, pkix) -> - NewExtID = ssl_pkix_oid:id2atom(ExtnID), - ExtValue = transform_extension_value(NewExtID, ExtnValue, pkix), - Ext#'Extension'{extnValue = ExtValue}; - -transform(#'AuthorityKeyIdentifier'{authorityCertIssuer = CertIssuer} = Ext, - Type) -> - Ext#'AuthorityKeyIdentifier'{authorityCertIssuer = - transform(CertIssuer, Type)}; - -transform([{directoryName, Value}], Type) -> - [{directoryName, transform(Value, Type)}]; - -transform(X, _) -> - X. - -transform_extension_value('ce-authorityKeyIdentifier', Value, Type) -> - transform(Value, Type); -transform_extension_value(_, Value, _) -> - Value. - -transform_extensions(Exts, Type) when is_list(Exts) -> - [transform(Ext, Type) || Ext <- Exts]; -transform_extensions(Exts, _) -> - Exts. - -get_subj(Cert) -> - (Cert#'Certificate'.tbsCertificate)#'TBSCertificate'.subject. - -signature_digest(BinSignature) -> - case (catch 'OTP-PKIX':decode('DigestInfo', BinSignature)) of - {ok, DigestInfo} -> - list_to_binary(DigestInfo#'DigestInfo'.digest); - _ -> - {error, decode_error} - end. diff --git a/lib/ssl/src/ssl_pkix.hrl b/lib/ssl/src/ssl_pkix.hrl deleted file mode 100644 index a8463369f6..0000000000 --- a/lib/ssl/src/ssl_pkix.hrl +++ /dev/null @@ -1,81 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2003-2009. All Rights Reserved. -%% -%% 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. -%% -%% %CopyrightEnd% -%% - -%% - --ifndef(ssl_pkix). --define(ssl_pkix, true). - --include("OTP-PKIX.hrl"). - -%% The following commented out records are currently defined in OTP-PKIX.hrl -%% and are considered a public interface through ssl_pkix.hrl. -%% NOTE do not include OTP-PKIX.hrl it is an generated file -%% and may change but the following records will still be -%% availanble from this file. - -% -record('Certificate', { -% tbsCertificate, -% signatureAlgorithm, -% signature}). - -% -record('TBSCertificate', { -% version = asn1_DEFAULT, -% serialNumber, -% signature, -% issuer, -% validity, -% subject, -% subjectPublicKeyInfo, -% issuerUniqueID = asn1_NOVALUE, -% subjectUniqueID = asn1_NOVALUE, -% extensions = asn1_NOVALUE}). - -% -record('AttributeTypeAndValue', { -% type, -% value}). - -% -record('SubjectPublicKeyInfo', { -% algorithm, -% subjectPublicKey}). - --record('SubjectPublicKeyInfo_algorithm', { - algorithm, - parameters = asn1_NOVALUE}). - -% -record('FieldID', { -% fieldType, -% parameters}). - -% -record('Characteristic-two', { -% m, -% basis, -% parameters}). - -% -record('ExtensionAttribute', { -% extensionAttributeType, -% extensionAttributeValue}). - -% -record('Extension', { -% extnID, -% critical = asn1_DEFAULT, -% extnValue}). - --endif. % -ifdef(ssl_pkix). - diff --git a/lib/ssl/src/ssl_record.erl b/lib/ssl/src/ssl_record.erl index da48f049f6..f1c0073965 100644 --- a/lib/ssl/src/ssl_record.erl +++ b/lib/ssl/src/ssl_record.erl @@ -29,7 +29,7 @@ -include("ssl_internal.hrl"). -include("ssl_alert.hrl"). -include("ssl_handshake.hrl"). --include("ssl_debug.hrl"). +-include("ssl_cipher.hrl"). %% Connection state handling -export([init_connection_states/1, @@ -38,7 +38,10 @@ set_mac_secret/4, set_master_secret/2, activate_pending_connection_state/2, - set_pending_cipher_state/4]). + set_pending_cipher_state/4, + set_renegotiation_flag/2, + set_client_verify_data/3, + set_server_verify_data/3]). %% Handling of incoming data -export([get_tls_records/2]). @@ -62,10 +65,9 @@ %%==================================================================== %% Internal application API %%==================================================================== + %%-------------------------------------------------------------------- -%% Function: init_connection_states(Role) -> #connection_states{} -%% Role = client | server -%% Random = binary() +-spec init_connection_states(client | server) -> #connection_states{}. %% %% Description: Creates a connection_states record with appropriate %% values for the initial SSL connection setup. @@ -81,9 +83,8 @@ init_connection_states(Role) -> }. %%-------------------------------------------------------------------- -%% Function: current_connection_state(States, Type) -> #connection_state{} -%% States = #connection_states{} -%% Type = read | write +-spec current_connection_state(#connection_states{}, read | write) -> + #connection_state{}. %% %% Description: Returns the instance of the connection_state record %% that is currently defined as the current conection state. @@ -96,9 +97,8 @@ current_connection_state(#connection_states{current_write = Current}, Current. %%-------------------------------------------------------------------- -%% Function: pending_connection_state(States, Type) -> #connection_state{} -%% States = #connection_states{} -%% Type = read | write +-spec pending_connection_state(#connection_states{}, read | write) -> + #connection_state{}. %% %% Description: Returns the instance of the connection_state record %% that is currently defined as the pending conection state. @@ -111,14 +111,11 @@ pending_connection_state(#connection_states{pending_write = Pending}, Pending. %%-------------------------------------------------------------------- -%% Function: update_security_params(Params, States) -> -%% #connection_states{} -%% Params = #security_parameters{} -%% States = #connection_states{} +-spec update_security_params(#security_parameters{}, #security_parameters{}, + #connection_states{}) -> #connection_states{}. %% %% Description: Creates a new instance of the connection_states record -%% where the pending states gets its security parameters -%% updated to <Params>. +%% where the pending states gets its security parameters updated. %%-------------------------------------------------------------------- update_security_params(ReadParams, WriteParams, States = #connection_states{pending_read = Read, @@ -131,14 +128,10 @@ update_security_params(ReadParams, WriteParams, States = WriteParams} }. %%-------------------------------------------------------------------- -%% Function: set_mac_secret(ClientWriteMacSecret, -%% ServerWriteMacSecret, Role, States) -> -%% #connection_states{} -%% MacSecret = binary() -%% States = #connection_states{} -%% Role = server | client +-spec set_mac_secret(binary(), binary(), client | server, + #connection_states{}) -> #connection_states{}. %% -%% update the mac_secret field in pending connection states +%% Description: update the mac_secret field in pending connection states %%-------------------------------------------------------------------- set_mac_secret(ClientWriteMacSecret, ServerWriteMacSecret, client, States) -> set_mac_secret(ServerWriteMacSecret, ClientWriteMacSecret, States); @@ -155,12 +148,9 @@ set_mac_secret(ReadMacSecret, WriteMacSecret, %%-------------------------------------------------------------------- -%% Function: set_master_secret(MasterSecret, States) -> -%% #connection_states{} -%% MacSecret = -%% States = #connection_states{} +-spec set_master_secret(binary(), #connection_states{}) -> #connection_states{}. %% -%% Set master_secret in pending connection states +%% Description: Set master_secret in pending connection states %%-------------------------------------------------------------------- set_master_secret(MasterSecret, States = #connection_states{pending_read = Read, @@ -175,12 +165,94 @@ set_master_secret(MasterSecret, master_secret = MasterSecret}}, States#connection_states{pending_read = Read1, pending_write = Write1}. +%%-------------------------------------------------------------------- +-spec set_renegotiation_flag(boolean(), #connection_states{}) -> #connection_states{}. +%% +%% Description: Set secure_renegotiation in pending connection states +%%-------------------------------------------------------------------- +set_renegotiation_flag(Flag, #connection_states{ + current_read = CurrentRead0, + current_write = CurrentWrite0, + pending_read = PendingRead0, + pending_write = PendingWrite0} + = ConnectionStates) -> + CurrentRead = CurrentRead0#connection_state{secure_renegotiation = Flag}, + CurrentWrite = CurrentWrite0#connection_state{secure_renegotiation = Flag}, + PendingRead = PendingRead0#connection_state{secure_renegotiation = Flag}, + PendingWrite = PendingWrite0#connection_state{secure_renegotiation = Flag}, + ConnectionStates#connection_states{current_read = CurrentRead, + current_write = CurrentWrite, + pending_read = PendingRead, + pending_write = PendingWrite}. + +%%-------------------------------------------------------------------- +-spec set_client_verify_data(current_read | current_write | current_both, + binary(), #connection_states{})-> + #connection_states{}. +%% +%% Description: Set verify data in connection states. +%%-------------------------------------------------------------------- +set_client_verify_data(current_read, Data, + #connection_states{current_read = CurrentRead0, + pending_write = PendingWrite0} + = ConnectionStates) -> + CurrentRead = CurrentRead0#connection_state{client_verify_data = Data}, + PendingWrite = PendingWrite0#connection_state{client_verify_data = Data}, + ConnectionStates#connection_states{current_read = CurrentRead, + pending_write = PendingWrite}; +set_client_verify_data(current_write, Data, + #connection_states{pending_read = PendingRead0, + current_write = CurrentWrite0} + = ConnectionStates) -> + PendingRead = PendingRead0#connection_state{client_verify_data = Data}, + CurrentWrite = CurrentWrite0#connection_state{client_verify_data = Data}, + ConnectionStates#connection_states{pending_read = PendingRead, + current_write = CurrentWrite}; +set_client_verify_data(current_both, Data, + #connection_states{current_read = CurrentRead0, + current_write = CurrentWrite0} + = ConnectionStates) -> + CurrentRead = CurrentRead0#connection_state{client_verify_data = Data}, + CurrentWrite = CurrentWrite0#connection_state{client_verify_data = Data}, + ConnectionStates#connection_states{current_read = CurrentRead, + current_write = CurrentWrite}. +%%-------------------------------------------------------------------- +-spec set_server_verify_data(current_read | current_write | current_both, + binary(), #connection_states{})-> + #connection_states{}. +%% +%% Description: Set verify data in pending connection states. +%%-------------------------------------------------------------------- +set_server_verify_data(current_write, Data, + #connection_states{pending_read = PendingRead0, + current_write = CurrentWrite0} + = ConnectionStates) -> + PendingRead = PendingRead0#connection_state{server_verify_data = Data}, + CurrentWrite = CurrentWrite0#connection_state{server_verify_data = Data}, + ConnectionStates#connection_states{pending_read = PendingRead, + current_write = CurrentWrite}; + +set_server_verify_data(current_read, Data, + #connection_states{current_read = CurrentRead0, + pending_write = PendingWrite0} + = ConnectionStates) -> + CurrentRead = CurrentRead0#connection_state{server_verify_data = Data}, + PendingWrite = PendingWrite0#connection_state{server_verify_data = Data}, + ConnectionStates#connection_states{current_read = CurrentRead, + pending_write = PendingWrite}; + +set_server_verify_data(current_both, Data, + #connection_states{current_read = CurrentRead0, + current_write = CurrentWrite0} + = ConnectionStates) -> + CurrentRead = CurrentRead0#connection_state{server_verify_data = Data}, + CurrentWrite = CurrentWrite0#connection_state{server_verify_data = Data}, + ConnectionStates#connection_states{current_read = CurrentRead, + current_write = CurrentWrite}. %%-------------------------------------------------------------------- -%% Function: activate_pending_connection_state(States, Type) -> -%% #connection_states{} -%% States = #connection_states{} -%% Type = read | write +-spec activate_pending_connection_state(#connection_states{}, read | write) -> + #connection_states{}. %% %% Description: Creates a new instance of the connection_states record %% where the pending state of <Type> has been activated. @@ -191,7 +263,9 @@ activate_pending_connection_state(States = NewCurrent = Pending#connection_state{sequence_number = 0}, SecParams = Pending#connection_state.security_parameters, ConnectionEnd = SecParams#security_parameters.connection_end, - NewPending = empty_connection_state(ConnectionEnd), + EmptyPending = empty_connection_state(ConnectionEnd), + SecureRenegotation = NewCurrent#connection_state.secure_renegotiation, + NewPending = EmptyPending#connection_state{secure_renegotiation = SecureRenegotation}, States#connection_states{current_read = NewCurrent, pending_read = NewPending }; @@ -202,17 +276,17 @@ activate_pending_connection_state(States = NewCurrent = Pending#connection_state{sequence_number = 0}, SecParams = Pending#connection_state.security_parameters, ConnectionEnd = SecParams#security_parameters.connection_end, - NewPending = empty_connection_state(ConnectionEnd), + EmptyPending = empty_connection_state(ConnectionEnd), + SecureRenegotation = NewCurrent#connection_state.secure_renegotiation, + NewPending = EmptyPending#connection_state{secure_renegotiation = SecureRenegotation}, States#connection_states{current_write = NewCurrent, pending_write = NewPending }. %%-------------------------------------------------------------------- -%% Function: set_pending_cipher_state(States, ClientState, -%% ServerState, Role) -> -%% #connection_states{} -%% ClientState = ServerState = #cipher_state{} -%% States = #connection_states{} +-spec set_pending_cipher_state(#connection_states{}, #cipher_state{}, + #cipher_state{}, client | server) -> + #connection_states{}. %% %% Description: Set the cipher state in the specified pending connection state. %%-------------------------------------------------------------------- @@ -231,12 +305,10 @@ set_pending_cipher_state(#connection_states{pending_read = Read, pending_write = Write#connection_state{cipher_state = ClientState}}. %%-------------------------------------------------------------------- -%% Function: get_tls_record(Data, Buffer) -> Result -%% Result = {[#tls_compressed{}], NewBuffer} -%% Data = Buffer = NewBuffer = binary() -%% -%% Description: given old buffer and new data from TCP, packs up a records -%% and returns it as a list of #tls_compressed, also returns leftover +-spec get_tls_records(binary(), binary()) -> {[binary()], binary()} | #alert{}. +%% +%% Description: Given old buffer and new data from TCP, packs up a records +%% and returns it as a list of tls_compressed binaries also returns leftover %% data %%-------------------------------------------------------------------- get_tls_records(Data, <<>>) -> @@ -299,8 +371,8 @@ get_tls_records_aux(Data, Acc) -> {lists:reverse(Acc), Data}. %%-------------------------------------------------------------------- -%% Function: protocol_version(Version) -> #protocol_version{} -%% Version = atom() +-spec protocol_version(tls_atom_version() | tls_version()) -> + tls_version() | tls_atom_version(). %% %% Description: Creates a protocol version record from a version atom %% or vice versa. @@ -311,19 +383,16 @@ protocol_version(tlsv1) -> {3, 1}; protocol_version(sslv3) -> {3, 0}; -protocol_version(sslv2) -> +protocol_version(sslv2) -> %% Backwards compatibility {2, 0}; protocol_version({3, 2}) -> 'tlsv1.1'; protocol_version({3, 1}) -> tlsv1; protocol_version({3, 0}) -> - sslv3; -protocol_version({2, 0}) -> - sslv2. + sslv3. %%-------------------------------------------------------------------- -%% Function: protocol_version(Version1, Version2) -> #protocol_version{} -%% Version1 = Version2 = #protocol_version{} +-spec lowest_protocol_version(tls_version(), tls_version()) -> tls_version(). %% %% Description: Lowes protocol version of two given versions %%-------------------------------------------------------------------- @@ -338,8 +407,7 @@ lowest_protocol_version(Version = {M,_}, lowest_protocol_version(_,Version) -> Version. %%-------------------------------------------------------------------- -%% Function: protocol_version(Versions) -> #protocol_version{} -%% Versions = [#protocol_version{}] +-spec highest_protocol_version([tls_version()]) -> tls_version(). %% %% Description: Highest protocol version present in a list %%-------------------------------------------------------------------- @@ -361,14 +429,13 @@ highest_protocol_version(_, [Version | Rest]) -> highest_protocol_version(Version, Rest). %%-------------------------------------------------------------------- -%% Function: supported_protocol_versions() -> Versions -%% Versions = [#protocol_version{}] -%% +-spec supported_protocol_versions() -> [tls_version()]. +%% %% Description: Protocol versions supported %%-------------------------------------------------------------------- supported_protocol_versions() -> Fun = fun(Version) -> - protocol_version(Version) + protocol_version(Version) end, case application:get_env(ssl, protocol_version) of undefined -> @@ -376,14 +443,20 @@ supported_protocol_versions() -> {ok, []} -> lists:map(Fun, ?DEFAULT_SUPPORTED_VERSIONS); {ok, Vsns} when is_list(Vsns) -> - lists:map(Fun, Vsns); + Versions = lists:filter(fun is_acceptable_version/1, lists:map(Fun, Vsns)), + supported_protocol_versions(Versions); {ok, Vsn} -> - [Fun(Vsn)] + Versions = lists:filter(fun is_acceptable_version/1, [Fun(Vsn)]), + supported_protocol_versions(Versions) end. +supported_protocol_versions([]) -> + ?DEFAULT_SUPPORTED_VERSIONS; +supported_protocol_versions([_|_] = Vsns) -> + Vsns. + %%-------------------------------------------------------------------- -%% Function: is_acceptable_version(Version) -> true | false -%% Version = #protocol_version{} +-spec is_acceptable_version(tls_version()) -> boolean(). %% %% Description: ssl version 2 is not acceptable security risks are too big. %%-------------------------------------------------------------------- @@ -394,7 +467,7 @@ is_acceptable_version(_) -> false. %%-------------------------------------------------------------------- -%% Function: compressions() -> binary() +-spec compressions() -> [binary()]. %% %% Description: return a list of compressions supported (currently none) %%-------------------------------------------------------------------- @@ -402,8 +475,8 @@ compressions() -> [?byte(?NULL)]. %%-------------------------------------------------------------------- -%% Function: decode_cipher_text(CipherText, ConnectionStates0) -> -%% {Plain, ConnectionStates} +-spec decode_cipher_text(#ssl_tls{}, #connection_states{}) -> + {#ssl_tls{}, #connection_states{}}| #alert{}. %% %% Description: Decode cipher text %%-------------------------------------------------------------------- @@ -412,13 +485,77 @@ decode_cipher_text(CipherText, ConnnectionStates0) -> #connection_state{compression_state = CompressionS0, security_parameters = SecParams} = ReadState0, CompressAlg = SecParams#security_parameters.compression_algorithm, - {Compressed, ReadState1} = decipher(CipherText, ReadState0), - {Plain, CompressionS1} = uncompress(CompressAlg, - Compressed, CompressionS0), - ConnnectionStates = ConnnectionStates0#connection_states{ - current_read = ReadState1#connection_state{ - compression_state = CompressionS1}}, - {Plain, ConnnectionStates}. + case decipher(CipherText, ReadState0) of + {Compressed, ReadState1} -> + {Plain, CompressionS1} = uncompress(CompressAlg, + Compressed, CompressionS0), + ConnnectionStates = ConnnectionStates0#connection_states{ + current_read = ReadState1#connection_state{ + compression_state = CompressionS1}}, + {Plain, ConnnectionStates}; + #alert{} = Alert -> + Alert + end. +%%-------------------------------------------------------------------- +-spec encode_data(iolist(), tls_version(), #connection_states{}, integer()) -> + {iolist(), iolist(), #connection_states{}}. +%% +%% Description: Encodes data to send on the ssl-socket. +%%-------------------------------------------------------------------- +encode_data(Frag, Version, ConnectionStates, RenegotiateAt) + when byte_size(Frag) < (?MAX_PLAIN_TEXT_LENGTH - 2048) -> + case encode_plain_text(?APPLICATION_DATA,Version,Frag,ConnectionStates, RenegotiateAt) of + {renegotiate, Data} -> + {[], Data, ConnectionStates}; + {Msg, CS} -> + {Msg, [], CS} + end; + +encode_data(Frag, Version, ConnectionStates, RenegotiateAt) when is_binary(Frag) -> + Data = split_bin(Frag, ?MAX_PLAIN_TEXT_LENGTH - 2048), + encode_data(Data, Version, ConnectionStates, RenegotiateAt); + +encode_data(Data, Version, ConnectionStates0, RenegotiateAt) when is_list(Data) -> + {ConnectionStates, EncodedMsg, NotEncdedData} = + lists:foldl(fun(B, {CS0, Encoded, Rest}) -> + case encode_plain_text(?APPLICATION_DATA, + Version, B, CS0, RenegotiateAt) of + {renegotiate, NotEnc} -> + {CS0, Encoded, [NotEnc | Rest]}; + {Enc, CS1} -> + {CS1, [Enc | Encoded], Rest} + end + end, {ConnectionStates0, [], []}, Data), + {lists:reverse(EncodedMsg), lists:reverse(NotEncdedData), ConnectionStates}. + +%%-------------------------------------------------------------------- +-spec encode_handshake(iolist(), tls_version(), #connection_states{}) -> + {iolist(), #connection_states{}}. +%% +%% Description: Encodes a handshake message to send on the ssl-socket. +%%-------------------------------------------------------------------- +encode_handshake(Frag, Version, ConnectionStates) -> + encode_plain_text(?HANDSHAKE, Version, Frag, ConnectionStates). + +%%-------------------------------------------------------------------- +-spec encode_alert_record(#alert{}, tls_version(), #connection_states{}) -> + {iolist(), #connection_states{}}. +%% +%% Description: Encodes an alert message to send on the ssl-socket. +%%-------------------------------------------------------------------- +encode_alert_record(#alert{level = Level, description = Description}, + Version, ConnectionStates) -> + encode_plain_text(?ALERT, Version, <<?BYTE(Level), ?BYTE(Description)>>, + ConnectionStates). + +%%-------------------------------------------------------------------- +-spec encode_change_cipher_spec(tls_version(), #connection_states{}) -> + {iolist(), #connection_states{}}. +%% +%% Description: Encodes a change_cipher_spec-message to send on the ssl socket. +%%-------------------------------------------------------------------- +encode_change_cipher_spec(Version, ConnectionStates) -> + encode_plain_text(?CHANGE_CIPHER_SPEC, Version, <<1:8>>, ConnectionStates). %%-------------------------------------------------------------------- %%% Internal functions @@ -433,12 +570,10 @@ initial_connection_state(ConnectionEnd) -> }. initial_security_params(ConnectionEnd) -> - #security_parameters{connection_end = ConnectionEnd, - bulk_cipher_algorithm = ?NULL, - mac_algorithm = ?NULL, - compression_algorithm = ?NULL, - cipher_type = ?NULL - }. + SecParams = #security_parameters{connection_end = ConnectionEnd, + compression_algorithm = ?NULL}, + ssl_cipher:security_parameters(?TLS_NULL_WITH_NULL_NULL, + SecParams). empty_connection_state(ConnectionEnd) -> SecParams = empty_security_params(ConnectionEnd), @@ -474,43 +609,6 @@ split_bin(Bin, ChunkSize, Acc) -> lists:reverse(Acc, [Bin]) end. -encode_data(Frag, Version, ConnectionStates, RenegotiateAt) - when byte_size(Frag) < (?MAX_PLAIN_TEXT_LENGTH - 2048) -> - case encode_plain_text(?APPLICATION_DATA,Version,Frag,ConnectionStates, RenegotiateAt) of - {renegotiate, Data} -> - {[], Data, ConnectionStates}; - {Msg, CS} -> - {Msg, [], CS} - end; - -encode_data(Frag, Version, ConnectionStates, RenegotiateAt) when is_binary(Frag) -> - Data = split_bin(Frag, ?MAX_PLAIN_TEXT_LENGTH - 2048), - encode_data(Data, Version, ConnectionStates, RenegotiateAt); - -encode_data(Data, Version, ConnectionStates0, RenegotiateAt) when is_list(Data) -> - {ConnectionStates, EncodedMsg, NotEncdedData} = - lists:foldl(fun(B, {CS0, Encoded, Rest}) -> - case encode_plain_text(?APPLICATION_DATA, - Version, B, CS0, RenegotiateAt) of - {renegotiate, NotEnc} -> - {CS0, Encoded, [NotEnc | Rest]}; - {Enc, CS1} -> - {CS1, [Enc | Encoded], Rest} - end - end, {ConnectionStates0, [], []}, Data), - {lists:reverse(EncodedMsg), lists:reverse(NotEncdedData), ConnectionStates}. - -encode_handshake(Frag, Version, ConnectionStates) -> - encode_plain_text(?HANDSHAKE, Version, Frag, ConnectionStates). - -encode_alert_record(#alert{level = Level, description = Description}, - Version, ConnectionStates) -> - encode_plain_text(?ALERT, Version, <<?BYTE(Level), ?BYTE(Description)>>, - ConnectionStates). - -encode_change_cipher_spec(Version, ConnectionStates) -> - encode_plain_text(?CHANGE_CIPHER_SPEC, Version, <<1:8>>, ConnectionStates). - encode_plain_text(Type, Version, Data, ConnectionStates, RenegotiateAt) -> #connection_states{current_write = #connection_state{sequence_number = Num}} = ConnectionStates, @@ -544,29 +642,35 @@ encode_tls_cipher_text(Type, {MajVer, MinVer}, Fragment) -> cipher(Type, Version, Fragment, CS0) -> Length = erlang:iolist_size(Fragment), - {Hash, CS1=#connection_state{cipher_state = CipherS0, + {MacHash, CS1=#connection_state{cipher_state = CipherS0, security_parameters= #security_parameters{bulk_cipher_algorithm = BCA} }} = hash_and_bump_seqno(CS0, Type, Version, Length, Fragment), - ?DBG_HEX(Fragment), - {Ciphered, CipherS1} = ssl_cipher:cipher(BCA, CipherS0, Hash, Fragment), - ?DBG_HEX(Ciphered), + {Ciphered, CipherS1} = ssl_cipher:cipher(BCA, CipherS0, MacHash, Fragment), CS2 = CS1#connection_state{cipher_state=CipherS1}, {Ciphered, CS2}. decipher(TLS=#ssl_tls{type=Type, version=Version, fragment=Fragment}, CS0) -> SP = CS0#connection_state.security_parameters, - BCA = SP#security_parameters.bulk_cipher_algorithm, % eller Cipher? + BCA = SP#security_parameters.bulk_cipher_algorithm, HashSz = SP#security_parameters.hash_size, CipherS0 = CS0#connection_state.cipher_state, - {T, Mac, CipherS1} = ssl_cipher:decipher(BCA, HashSz, CipherS0, Fragment), - CS1 = CS0#connection_state{cipher_state = CipherS1}, - TLength = size(T), - {Hash, CS2} = hash_and_bump_seqno(CS1, Type, Version, TLength, Fragment), - ok = check_hash(Hash, Mac), - {TLS#ssl_tls{fragment = T}, CS2}. + case ssl_cipher:decipher(BCA, HashSz, CipherS0, Fragment, Version) of + {T, Mac, CipherS1} -> + CS1 = CS0#connection_state{cipher_state = CipherS1}, + TLength = size(T), + {MacHash, CS2} = hash_and_bump_seqno(CS1, Type, Version, TLength, T), + case is_correct_mac(Mac, MacHash) of + true -> + {TLS#ssl_tls{fragment = T}, CS2}; + false -> + ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC) + end; + #alert{} = Alert -> + Alert + end. uncompress(?NULL, Data = #ssl_tls{type = _Type, version = _Version, @@ -587,10 +691,12 @@ hash_and_bump_seqno(#connection_state{sequence_number = SeqNo, Length, Fragment), {Hash, CS0#connection_state{sequence_number = SeqNo+1}}. -check_hash(_, _) -> - ok. %% TODO check this +is_correct_mac(Mac, Mac) -> + true; +is_correct_mac(_M,_H) -> + false. -mac_hash(?NULL, {_,_}, _MacSecret, _SeqNo, _Type, +mac_hash({_,_}, ?NULL, _MacSecret, _SeqNo, _Type, _Length, _Fragment) -> <<>>; mac_hash({3, 0}, MacAlg, MacSecret, SeqNo, Type, Length, Fragment) -> diff --git a/lib/ssl/src/ssl_record.hrl b/lib/ssl/src/ssl_record.hrl index 362b7039d4..5fb0070b91 100644 --- a/lib/ssl/src/ssl_record.hrl +++ b/lib/ssl/src/ssl_record.hrl @@ -60,7 +60,11 @@ compression_state, cipher_state, mac_secret, - sequence_number + sequence_number, + %% RFC 5746 + secure_renegotiation, + client_verify_data, + server_verify_data }). -define(MAX_SEQENCE_NUMBER, 18446744073709552000). %% math:pow(2, 64) - 1 = 1.8446744073709552e19 diff --git a/lib/ssl/src/ssl_session.erl b/lib/ssl/src/ssl_session.erl index bcb10daf69..dc4b7a711c 100644 --- a/lib/ssl/src/ssl_session.erl +++ b/lib/ssl/src/ssl_session.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2009. All Rights Reserved. +%% Copyright Ericsson AB 2007-2010. All Rights Reserved. %% %% 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 @@ -28,15 +28,14 @@ -include("ssl_internal.hrl"). %% Internal application API --export([is_new/2, id/3, id/6, valid_session/2]). +-export([is_new/2, id/4, id/7, valid_session/2]). -define(GEN_UNIQUE_ID_MAX_TRIES, 10). +-type seconds() :: integer(). + %%-------------------------------------------------------------------- -%% Function: is_new(ClientSuggestedId, ServerDecidedId) -> true | false -%% -%% ClientSuggestedId = binary() -%% ServerDecidedId = binary() +-spec is_new(session_id(), session_id()) -> boolean(). %% %% Description: Checks if the session id decided by the server is a %% new or resumed sesion id. @@ -45,23 +44,18 @@ is_new(<<>>, _) -> true; is_new(SessionId, SessionId) -> false; -is_new(_, _) -> +is_new(_ClientSuggestion, _ServerDecision) -> true. %%-------------------------------------------------------------------- -%% Function: id(ClientInfo, Cache, CacheCb) -> SessionId -%% -%% ClientInfo = {HostIP, Port, SslOpts} -%% HostIP = ipadress() -%% Port = integer() -%% CacheCb = atom() -%% SessionId = binary() +-spec id({host(), port_num(), #ssl_options{}}, cache_ref(), atom(), + undefined | binary()) -> binary(). %% %% Description: Should be called by the client side to get an id %% for the client hello message. %%-------------------------------------------------------------------- -id(ClientInfo, Cache, CacheCb) -> - case select_session(ClientInfo, Cache, CacheCb) of +id(ClientInfo, Cache, CacheCb, OwnCert) -> + case select_session(ClientInfo, Cache, CacheCb, OwnCert) of no_session -> <<>>; SessionId -> @@ -69,36 +63,27 @@ id(ClientInfo, Cache, CacheCb) -> end. %%-------------------------------------------------------------------- -%% Function: id(Port, SuggestedSessionId, ReuseFun, CacheCb, -%% SecondLifeTime) -> SessionId -%% -%% Port = integer() -%% SuggestedSessionId = SessionId = binary() -%% ReuseFun = fun(SessionId, PeerCert, Compression, CipherSuite) -> -%% true | false -%% CacheCb = atom() +-spec id(port_num(), binary(), #ssl_options{}, cache_ref(), + atom(), seconds(), binary()) -> binary(). %% %% Description: Should be called by the server side to get an id %% for the server hello message. %%-------------------------------------------------------------------- -id(Port, <<>>, _, Cache, CacheCb, _) -> +id(Port, <<>>, _, Cache, CacheCb, _, _) -> new_id(Port, ?GEN_UNIQUE_ID_MAX_TRIES, Cache, CacheCb); id(Port, SuggestedSessionId, #ssl_options{reuse_sessions = ReuseEnabled, reuse_session = ReuseFun}, - Cache, CacheCb, SecondLifeTime) -> + Cache, CacheCb, SecondLifeTime, OwnCert) -> case is_resumable(SuggestedSessionId, Port, ReuseEnabled, - ReuseFun, Cache, CacheCb, SecondLifeTime) of + ReuseFun, Cache, CacheCb, SecondLifeTime, OwnCert) of true -> SuggestedSessionId; false -> new_id(Port, ?GEN_UNIQUE_ID_MAX_TRIES, Cache, CacheCb) end. %%-------------------------------------------------------------------- -%% Function: valid_session(Session, LifeTime) -> true | false -%% -%% Session = #session{} -%% LifeTime = integer() - seconds +-spec valid_session(#session{}, seconds()) -> boolean(). %% %% Description: Check that the session has not expired %%-------------------------------------------------------------------- @@ -109,19 +94,20 @@ valid_session(#session{time_stamp = TimeStamp}, LifeTime) -> %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- -select_session({HostIP, Port, SslOpts}, Cache, CacheCb) -> +select_session({HostIP, Port, SslOpts}, Cache, CacheCb, OwnCert) -> Sessions = CacheCb:select_session(Cache, {HostIP, Port}), - select_session(Sessions, SslOpts). + select_session(Sessions, SslOpts, OwnCert). -select_session([], _) -> +select_session([], _, _) -> no_session; select_session(Sessions, #ssl_options{ciphers = Ciphers, - reuse_sessions = ReuseSession}) -> + reuse_sessions = ReuseSession}, OwnCert) -> IsResumable = fun(Session) -> ReuseSession andalso (Session#session.is_resumable) andalso lists:member(Session#session.cipher_suite, Ciphers) + andalso (OwnCert == Session#session.own_certificate) end, case [Id || [Id, Session] <- Sessions, IsResumable(Session)] of [] -> @@ -129,7 +115,7 @@ select_session(Sessions, #ssl_options{ciphers = Ciphers, List -> hd(List) end. - + %% If we can not generate a not allready in use session ID in %% ?GEN_UNIQUE_ID_MAX_TRIES we make the new session uncacheable The %% value of ?GEN_UNIQUE_ID_MAX_TRIES is stolen from open SSL which @@ -156,14 +142,16 @@ new_id(Port, Tries, Cache, CacheCb) -> end. is_resumable(SuggestedSessionId, Port, ReuseEnabled, ReuseFun, Cache, - CacheCb, SecondLifeTime) -> + CacheCb, SecondLifeTime, OwnCert) -> case CacheCb:lookup(Cache, {Port, SuggestedSessionId}) of #session{cipher_suite = CipherSuite, + own_certificate = SessionOwnCert, compression_method = Compression, is_resumable = Is_resumable, peer_certificate = PeerCert} = Session -> ReuseEnabled andalso Is_resumable + andalso (OwnCert == SessionOwnCert) andalso valid_session(Session, SecondLifeTime) andalso ReuseFun(SuggestedSessionId, PeerCert, Compression, CipherSuite); diff --git a/lib/ssl/src/ssl_session_cache.erl b/lib/ssl/src/ssl_session_cache.erl index 4a60892235..823bf7acfa 100644 --- a/lib/ssl/src/ssl_session_cache.erl +++ b/lib/ssl/src/ssl_session_cache.erl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2008-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 2008-2010. All Rights Reserved. +%% %% 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. -%% +%% %% %CopyrightEnd% %% @@ -22,23 +22,24 @@ -behaviour(ssl_session_cache_api). --export([init/0, terminate/1, lookup/2, update/3, delete/2, foldl/3, - select_session/2]). +-include("ssl_handshake.hrl"). +-include("ssl_internal.hrl"). + +-export([init/1, terminate/1, lookup/2, update/3, delete/2, foldl/3, + select_session/2]). + +-type key() :: {{host(), port_num()}, session_id()} | {port_num(), session_id()}. %%-------------------------------------------------------------------- -%% Function: init() -> Cache -%% -%% Cache - Reference to the cash (opaque) +-spec init(list()) -> cache_ref(). %% Returns reference to the cache (opaque) %% %% Description: Return table reference. Called by ssl_manager process. %%-------------------------------------------------------------------- -init() -> +init(_) -> ets:new(cache_name(), [set, protected]). %%-------------------------------------------------------------------- -%% Function: terminate(Cache) -> -%% -%% Cache - as returned by create/0 +-spec terminate(cache_ref()) -> any(). %% %% %% Description: Handles cache table at termination of ssl manager. %%-------------------------------------------------------------------- @@ -46,9 +47,7 @@ terminate(Cache) -> ets:delete(Cache). %%-------------------------------------------------------------------- -%% Function: lookup(Cache, Key) -> Session | undefined -%% Cache - as returned by create/0 -%% Session = #session{} +-spec lookup(cache_ref(), key()) -> #session{} | undefined. %% %% Description: Looks up a cach entry. Should be callable from any %% process. @@ -62,9 +61,7 @@ lookup(Cache, Key) -> end. %%-------------------------------------------------------------------- -%% Function: update(Cache, Key, Session) -> _ -%% Cache - as returned by create/0 -%% Session = #session{} +-spec update(cache_ref(), key(), #session{}) -> any(). %% %% Description: Caches a new session or updates a already cached one. %% Will only be called from the ssl_manager process. @@ -73,11 +70,7 @@ update(Cache, Key, Session) -> ets:insert(Cache, {Key, Session}). %%-------------------------------------------------------------------- -%% Function: delete(Cache, HostIP, Port, Id) -> _ -%% Cache - as returned by create/0 -%% HostIP = Host = string() | ipadress() -%% Port = integer() -%% Id = +-spec delete(cache_ref(), key()) -> any(). %% %% Description: Delets a cache entry. %% Will only be called from the ssl_manager process. @@ -86,28 +79,19 @@ delete(Cache, Key) -> ets:delete(Cache, Key). %%-------------------------------------------------------------------- -%% Function: foldl(Fun, Acc0, Cache) -> Acc -%% -%% Fun - fun() -%% Acc0 - term() -%% Cache - cache_ref() -%% +-spec foldl(fun(), term(), cache_ref()) -> term(). %% %% Description: Calls Fun(Elem, AccIn) on successive elements of the %% cache, starting with AccIn == Acc0. Fun/2 must return a new %% accumulator which is passed to the next call. The function returns -%% the final value of the accumulator. Acc0 is returned if the cache is -%% empty. -%% Should be callable from any process +%% the final value of the accumulator. Acc0 is returned if the cache +%% is empty.Should be callable from any process %%-------------------------------------------------------------------- foldl(Fun, Acc0, Cache) -> ets:foldl(Fun, Acc0, Cache). %%-------------------------------------------------------------------- -%% Function: select_session(Cache, PartialKey) -> [Sessions] -%% -%% Cache - as returned by create/0 -%% PartialKey - opaque Key = {PartialKey, SessionId} +-spec select_session(cache_ref(), {host(), port_num()} | port_num()) -> [#session{}]. %% %% Description: Selects a session that could be reused. Should be callable %% from any process. @@ -119,6 +103,5 @@ select_session(Cache, PartialKey) -> %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- - cache_name() -> ssl_otp_session_cache. diff --git a/lib/ssl/src/ssl_session_cache_api.erl b/lib/ssl/src/ssl_session_cache_api.erl index d2e846e9fd..f8416bf327 100644 --- a/lib/ssl/src/ssl_session_cache_api.erl +++ b/lib/ssl/src/ssl_session_cache_api.erl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 2008-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 2008-2010. All Rights Reserved. +%% %% 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. -%% +%% %% %CopyrightEnd% %% @@ -25,7 +25,7 @@ behaviour_info(callbacks) -> [ - {init, 0}, + {init, 1}, {terminate, 1}, {lookup, 2}, {update, 3}, diff --git a/lib/ssl/src/ssl_ssl3.erl b/lib/ssl/src/ssl_ssl3.erl index df809ce275..f2926b2d2f 100644 --- a/lib/ssl/src/ssl_ssl3.erl +++ b/lib/ssl/src/ssl_ssl3.erl @@ -25,12 +25,11 @@ -module(ssl_ssl3). -include("ssl_cipher.hrl"). --include("ssl_debug.hrl"). -include("ssl_internal.hrl"). -include("ssl_record.hrl"). % MD5 and SHA -export([master_secret/3, finished/3, certificate_verify/3, - mac_hash/6, setup_keys/8, + mac_hash/6, setup_keys/7, suites/0]). -compile(inline). @@ -38,10 +37,9 @@ %% Internal application API %%==================================================================== +-spec master_secret(binary(), binary(), binary()) -> binary(). + master_secret(PremasterSecret, ClientRandom, ServerRandom) -> - ?DBG_HEX(PremasterSecret), - ?DBG_HEX(ClientRandom), - ?DBG_HEX(ServerRandom), %% draft-ietf-tls-ssl-version3-00 - 6.2.2 %% key_block = %% MD5(master_secret + SHA(`A' + master_secret + @@ -53,9 +51,10 @@ master_secret(PremasterSecret, ClientRandom, ServerRandom) -> %% MD5(master_secret + SHA(`CCC' + master_secret + %% ServerHello.random + %% ClientHello.random)) + [...]; - B = generate_keyblock(PremasterSecret, ClientRandom, ServerRandom, 48), - ?DBG_HEX(B), - B. + Block = generate_keyblock(PremasterSecret, ClientRandom, ServerRandom, 48), + Block. + +-spec finished(client | server, binary(), {binary(), binary()}) -> binary(). finished(Role, MasterSecret, {MD5Hash, SHAHash}) -> %% draft-ietf-tls-ssl-version3-00 - 5.6.9 Finished @@ -75,8 +74,9 @@ finished(Role, MasterSecret, {MD5Hash, SHAHash}) -> SHA = handshake_hash(?SHA, MasterSecret, Sender, SHAHash), <<MD5/binary, SHA/binary>>. -certificate_verify(Algorithm, MasterSecret, {MD5Hash, SHAHash}) - when Algorithm == rsa; Algorithm == dh_rsa; Algorithm == dhe_rsa -> +-spec certificate_verify(OID::tuple(), binary(), {binary(), binary()}) -> binary(). + +certificate_verify(?'rsaEncryption', MasterSecret, {MD5Hash, SHAHash}) -> %% md5_hash %% MD5(master_secret + pad_2 + %% MD5(handshake_messages + master_secret + pad_1)); @@ -88,35 +88,31 @@ certificate_verify(Algorithm, MasterSecret, {MD5Hash, SHAHash}) SHA = handshake_hash(?SHA, MasterSecret, undefined, SHAHash), <<MD5/binary, SHA/binary>>; -certificate_verify(Algorithm, MasterSecret, {_, SHAHash}) - when Algorithm == dh_dss; Algorithm == dhe_dss -> +certificate_verify(?'id-dsa', MasterSecret, {_, SHAHash}) -> %% sha_hash %% SHA(master_secret + pad_2 + %% SHA(handshake_messages + master_secret + pad_1)); handshake_hash(?SHA, MasterSecret, undefined, SHAHash). +-spec mac_hash(integer(), binary(), integer(), integer(), integer(), binary()) -> binary(). + mac_hash(Method, Mac_write_secret, Seq_num, Type, Length, Fragment) -> %% draft-ietf-tls-ssl-version3-00 - 5.2.3.1 %% hash(MAC_write_secret + pad_2 + %% hash(MAC_write_secret + pad_1 + seq_num + %% SSLCompressed.type + SSLCompressed.length + %% SSLCompressed.fragment)); - case Method of - ?NULL -> ok; - _ -> - ?DBG_HEX(Mac_write_secret), - ?DBG_HEX(hash(Method, Fragment)), - ok - end, Mac = mac_hash(Method, Mac_write_secret, [<<?UINT64(Seq_num), ?BYTE(Type), ?UINT16(Length)>>, Fragment]), - ?DBG_HEX(Mac), Mac. -setup_keys(Exportable, MasterSecret, ServerRandom, ClientRandom, - HS, KML, _EKML, IVS) - when Exportable == no_export; Exportable == ignore -> +-spec setup_keys(binary(), binary(), binary(), + integer(), integer(), term(), integer()) -> + {binary(), binary(), binary(), + binary(), binary(), binary()}. + +setup_keys(MasterSecret, ServerRandom, ClientRandom, HS, KML, _EKML, IVS) -> KeyBlock = generate_keyblock(MasterSecret, ServerRandom, ClientRandom, 2*(HS+KML+IVS)), %% draft-ietf-tls-ssl-version3-00 - 6.2.2 @@ -130,86 +126,26 @@ setup_keys(Exportable, MasterSecret, ServerRandom, ClientRandom, <<ClientWriteMacSecret:HS/binary, ServerWriteMacSecret:HS/binary, ClientWriteKey:KML/binary, ServerWriteKey:KML/binary, ClientIV:IVS/binary, ServerIV:IVS/binary>> = KeyBlock, - ?DBG_HEX(ClientWriteMacSecret), - ?DBG_HEX(ServerWriteMacSecret), - ?DBG_HEX(ClientWriteKey), - ?DBG_HEX(ServerWriteKey), - ?DBG_HEX(ClientIV), - ?DBG_HEX(ServerIV), {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, - ServerWriteKey, ClientIV, ServerIV}; - -setup_keys(export, MasterSecret, ServerRandom, ClientRandom, - HS, KML, EKML, IVS) -> - KeyBlock = generate_keyblock(MasterSecret, ServerRandom, ClientRandom, - 2*(HS+KML)), - %% draft-ietf-tls-ssl-version3-00 - 6.2.2 - %% Exportable encryption algorithms (for which - %% CipherSpec.is_exportable is true) require additional processing as - %% follows to derive their final write keys: - - %% final_client_write_key = MD5(client_write_key + - %% ClientHello.random + - %% ServerHello.random); - %% final_server_write_key = MD5(server_write_key + - %% ServerHello.random + - %% ClientHello.random); + ServerWriteKey, ClientIV, ServerIV}. - %% Exportable encryption algorithms derive their IVs from the random - %% messages: - %% client_write_IV = MD5(ClientHello.random + ServerHello.random); - %% server_write_IV = MD5(ServerHello.random + ClientHello.random); - - <<ClientWriteMacSecret:HS/binary, ServerWriteMacSecret:HS/binary, - ClientWriteKey:KML/binary, ServerWriteKey:KML/binary>> = KeyBlock, - <<ClientIV:IVS/binary, _/binary>> = - hash(?MD5, [ClientRandom, ServerRandom]), - <<ServerIV:IVS/binary, _/binary>> = - hash(?MD5, [ServerRandom, ClientRandom]), - <<FinalClientWriteKey:EKML/binary, _/binary>> = - hash(?MD5, [ClientWriteKey, ClientRandom, ServerRandom]), - <<FinalServerWriteKey:EKML/binary, _/binary>> = - hash(?MD5, [ServerWriteKey, ServerRandom, ClientRandom]), - ?DBG_HEX(ClientWriteMacSecret), - ?DBG_HEX(ServerWriteMacSecret), - ?DBG_HEX(FinalClientWriteKey), - ?DBG_HEX(FinalServerWriteKey), - ?DBG_HEX(ClientIV), - ?DBG_HEX(ServerIV), - {ClientWriteMacSecret, ServerWriteMacSecret, FinalClientWriteKey, - FinalServerWriteKey, ClientIV, ServerIV}. +-spec suites() -> [cipher_suite()]. suites() -> [ - %% TODO: uncomment when supported ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA, - %% ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, + ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, ?TLS_RSA_WITH_AES_256_CBC_SHA, ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, - %% ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, + ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA, - %% ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, + ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, ?TLS_RSA_WITH_AES_128_CBC_SHA, - %%?TLS_DHE_DSS_WITH_RC4_128_SHA, TODO: Support this? - %% ?TLS_RSA_WITH_IDEA_CBC_SHA, Not supported: in later openssl version than OTP requires - + %%?TLS_RSA_WITH_IDEA_CBC_SHA, ?TLS_RSA_WITH_RC4_128_SHA, ?TLS_RSA_WITH_RC4_128_MD5, - %%?TLS_RSA_EXPORT1024_WITH_RC4_56_MD5, - %%?TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5, - %%?TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, - %%?TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA, - %%?TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, - %%?TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA, - %%?TLS_DHE_DSS_WITH_RC4_128_SHA, - ?TLS_RSA_WITH_DES_CBC_SHA - %% ?TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, - %% ?TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, - %% ?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA, - %%?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5, - %%?TLS_RSA_EXPORT_WITH_RC4_40_MD5 ]. %%-------------------------------------------------------------------- @@ -269,8 +205,7 @@ handshake_hash(Method, MasterSecret, Sender, HandshakeHash) -> hash(Method, [MasterSecret, pad_2(Method), InnerHash]). get_sender(client) -> "CLNT"; -get_sender(server) -> "SRVR"; -get_sender(none) -> "". +get_sender(server) -> "SRVR". generate_keyblock(MasterSecret, ServerRandom, ClientRandom, WantedLength) -> gen(MasterSecret, [MasterSecret, ServerRandom, ClientRandom], diff --git a/lib/ssl/src/ssl_sup.erl b/lib/ssl/src/ssl_sup.erl index bd5a02417a..316ed8a4e9 100644 --- a/lib/ssl/src/ssl_sup.erl +++ b/lib/ssl/src/ssl_sup.erl @@ -1,19 +1,19 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1998-2009. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 1998-2010. All Rights Reserved. +%% %% 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. -%% +%% %% %CopyrightEnd% %% @@ -32,16 +32,18 @@ %%%========================================================================= %%% API %%%========================================================================= + +-spec start_link() -> {ok, pid()} | ignore | {error, term()}. + start_link() -> supervisor:start_link({local, ?MODULE}, ?MODULE, []). %%%========================================================================= %%% Supervisor callback %%%========================================================================= -%% init([]) -> {ok, {SupFlags, [ChildSpec]}} -%% -init([]) -> - +-spec init([]) -> {ok, {SupFlags :: tuple(), [ChildSpec :: tuple()]}}. + +init([]) -> %% OLD ssl - moved start to ssl.erl only if old %% ssl is acctualy run! %%Child1 = {ssl_server, {ssl_server, start_link, []}, @@ -67,7 +69,7 @@ init([]) -> session_and_cert_manager_child_spec() -> Opts = manager_opts(), Name = ssl_manager, - StartFunc = {ssl_manager, start_link, Opts}, + StartFunc = {ssl_manager, start_link, [Opts]}, Restart = permanent, Shutdown = 4000, Modules = [ssl_manager], @@ -86,11 +88,12 @@ connection_manager_child_spec() -> manager_opts() -> CbOpts = case application:get_env(ssl, session_cb) of - {ok, Cb} when is_atom(Cb) -> - [{session_cb, Cb}]; - _ -> - [] - end, + {ok, Cb} when is_atom(Cb) -> + InitArgs = session_cb_init_args(), + [{session_cb, Cb}, {session_cb_init_args, InitArgs}]; + _ -> + [] + end, case application:get_env(ssl, session_lifetime) of {ok, Time} when is_integer(Time) -> [{session_lifetime, Time}| CbOpts]; @@ -98,3 +101,10 @@ manager_opts() -> CbOpts end. +session_cb_init_args() -> + case application:get_env(ssl, session_cb_init_args) of + {ok, Args} when is_list(Args) -> + Args; + _ -> + [] + end. diff --git a/lib/ssl/src/ssl_tls1.erl b/lib/ssl/src/ssl_tls1.erl index ce9a135168..5f9850c386 100644 --- a/lib/ssl/src/ssl_tls1.erl +++ b/lib/ssl/src/ssl_tls1.erl @@ -27,15 +27,16 @@ -include("ssl_cipher.hrl"). -include("ssl_internal.hrl"). -include("ssl_record.hrl"). --include("ssl_debug.hrl"). -export([master_secret/3, finished/3, certificate_verify/2, mac_hash/7, - setup_keys/5, setup_keys/6, suites/0]). + setup_keys/6, suites/0]). %%==================================================================== %% Internal application API %%==================================================================== +-spec master_secret(binary(), binary(), binary()) -> binary(). + master_secret(PreMasterSecret, ClientRandom, ServerRandom) -> %% RFC 2246 & 4346 - 8.1 %% master_secret = PRF(pre_master_secret, %% "master secret", ClientHello.random + @@ -43,6 +44,8 @@ master_secret(PreMasterSecret, ClientRandom, ServerRandom) -> prf(PreMasterSecret, <<"master secret">>, [ClientRandom, ServerRandom], 48). +-spec finished(client | server, binary(), {binary(), binary()}) -> binary(). + finished(Role, MasterSecret, {MD5Hash, SHAHash}) -> %% RFC 2246 & 4346 - 7.4.9. Finished %% struct { @@ -56,18 +59,20 @@ finished(Role, MasterSecret, {MD5Hash, SHAHash}) -> SHA = hash_final(?SHA, SHAHash), prf(MasterSecret, finished_label(Role), [MD5, SHA], 12). +-spec certificate_verify(OID::tuple(), {binary(), binary()}) -> binary(). -certificate_verify(Algorithm, {MD5Hash, SHAHash}) when Algorithm == rsa; - Algorithm == dh_rsa; - Algorithm == dhe_rsa -> +certificate_verify(?'rsaEncryption', {MD5Hash, SHAHash}) -> MD5 = hash_final(?MD5, MD5Hash), SHA = hash_final(?SHA, SHAHash), <<MD5/binary, SHA/binary>>; -certificate_verify(Algorithm, {_, SHAHash}) when Algorithm == dh_dss; - Algorithm == dhe_dss -> +certificate_verify(?'id-dsa', {_, SHAHash}) -> hash_final(?SHA, SHAHash). - + +-spec setup_keys(binary(), binary(), binary(), integer(), + integer(), integer()) -> {binary(), binary(), binary(), + binary(), binary(), binary()}. + setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, KeyMatLen, IVSize) -> %% RFC 2246 - 6.3. Key calculation @@ -92,26 +97,30 @@ setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, ServerWriteKey, ClientIV, ServerIV}. -setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, KeyMatLen) -> - %% RFC 4346 - 6.3. Key calculation - %% key_block = PRF(SecurityParameters.master_secret, - %% "key expansion", - %% SecurityParameters.server_random + - %% SecurityParameters.client_random); - %% Then the key_block is partitioned as follows: - %% client_write_MAC_secret[SecurityParameters.hash_size] - %% server_write_MAC_secret[SecurityParameters.hash_size] - %% client_write_key[SecurityParameters.key_material_length] - %% server_write_key[SecurityParameters.key_material_length] - WantedLength = 2 * (HashSize + KeyMatLen), - KeyBlock = prf(MasterSecret, "key expansion", - [ServerRandom, ClientRandom], WantedLength), - <<ClientWriteMacSecret:HashSize/binary, - ServerWriteMacSecret:HashSize/binary, - ClientWriteKey:KeyMatLen/binary, ServerWriteKey:KeyMatLen/binary>> - = KeyBlock, - {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, - ServerWriteKey, undefined, undefined}. +%% TLS v1.1 uncomment when supported. +%% setup_keys(MasterSecret, ServerRandom, ClientRandom, HashSize, KeyMatLen) -> +%% %% RFC 4346 - 6.3. Key calculation +%% %% key_block = PRF(SecurityParameters.master_secret, +%% %% "key expansion", +%% %% SecurityParameters.server_random + +%% %% SecurityParameters.client_random); +%% %% Then the key_block is partitioned as follows: +%% %% client_write_MAC_secret[SecurityParameters.hash_size] +%% %% server_write_MAC_secret[SecurityParameters.hash_size] +%% %% client_write_key[SecurityParameters.key_material_length] +%% %% server_write_key[SecurityParameters.key_material_length] +%% WantedLength = 2 * (HashSize + KeyMatLen), +%% KeyBlock = prf(MasterSecret, "key expansion", +%% [ServerRandom, ClientRandom], WantedLength), +%% <<ClientWriteMacSecret:HashSize/binary, +%% ServerWriteMacSecret:HashSize/binary, +%% ClientWriteKey:KeyMatLen/binary, ServerWriteKey:KeyMatLen/binary>> +%% = KeyBlock, +%% {ClientWriteMacSecret, ServerWriteMacSecret, ClientWriteKey, +%% ServerWriteKey, undefined, undefined}. + +-spec mac_hash(integer(), binary(), integer(), integer(), tls_version(), + integer(), binary()) -> binary(). mac_hash(Method, Mac_write_secret, Seq_num, Type, {Major, Minor}, Length, Fragment) -> @@ -119,51 +128,30 @@ mac_hash(Method, Mac_write_secret, Seq_num, Type, {Major, Minor}, %% HMAC_hash(MAC_write_secret, seq_num + TLSCompressed.type + %% TLSCompressed.version + TLSCompressed.length + %% TLSCompressed.fragment)); - case Method of - ?NULL -> ok; - _ -> - ?DBG_HEX(Mac_write_secret), - ?DBG_HEX(hash(Method, Fragment)), - ok - end, Mac = hmac_hash(Method, Mac_write_secret, [<<?UINT64(Seq_num), ?BYTE(Type), ?BYTE(Major), ?BYTE(Minor), ?UINT16(Length)>>, Fragment]), - ?DBG_HEX(Mac), Mac. +-spec suites() -> [cipher_suite()]. + suites() -> [ - %% TODO: uncomment when supported ?TLS_DHE_RSA_WITH_AES_256_CBC_SHA, - %%?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, + ?TLS_DHE_DSS_WITH_AES_256_CBC_SHA, ?TLS_RSA_WITH_AES_256_CBC_SHA, ?TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, - %% ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, + ?TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA, ?TLS_RSA_WITH_3DES_EDE_CBC_SHA, ?TLS_DHE_RSA_WITH_AES_128_CBC_SHA, - %% ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, + ?TLS_DHE_DSS_WITH_AES_128_CBC_SHA, ?TLS_RSA_WITH_AES_128_CBC_SHA, - %%?TLS_DHE_DSS_WITH_RC4_128_SHA, TODO: Support this? - %% ?TLS_RSA_WITH_IDEA_CBC_SHA, + %%?TLS_RSA_WITH_IDEA_CBC_SHA, ?TLS_RSA_WITH_RC4_128_SHA, ?TLS_RSA_WITH_RC4_128_MD5, - %%?TLS_RSA_EXPORT1024_WITH_RC4_56_MD5, - %%?TLS_RSA_EXPORT1024_WITH_RC2_CBC_56_MD5, - %%?TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA, - %%?TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA, - %%?TLS_RSA_EXPORT1024_WITH_RC4_56_SHA, - %%?TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA, - %%?TLS_DHE_DSS_WITH_RC4_128_SHA, - %%?TLS_DHE_RSA_WITH_DES_CBC_SHA, - %% EDH-DSS-DES-CBC-SHA TODO: ?? + ?TLS_DHE_RSA_WITH_DES_CBC_SHA, ?TLS_RSA_WITH_DES_CBC_SHA - %% ?TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA, - %% ?TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, - %%?TLS_RSA_EXPORT_WITH_DES40_CBC_SHA, - %%?TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5, - %%?TLS_RSA_EXPORT_WITH_RC4_40_MD5 ]. %%-------------------------------------------------------------------- @@ -245,7 +233,3 @@ hash_final(?MD5, Conntext) -> crypto:md5_final(Conntext); hash_final(?SHA, Conntext) -> crypto:sha_final(Conntext). - - - - |