From 4f43c3962b552d67fe2a25579c92ebfba97e2b21 Mon Sep 17 00:00:00 2001 From: Lars Thorsen Date: Fri, 1 Dec 2017 10:08:24 +0100 Subject: [crypto] Add engine_ctrl_cmd_string() to API --- lib/crypto/c_src/crypto.c | 13 ++++++--- lib/crypto/doc/src/crypto.xml | 51 ++++++++++++++++++++++++++++++++ lib/crypto/src/crypto.erl | 42 ++++++++++++++++++++++++--- lib/crypto/test/engine_SUITE.erl | 63 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 161 insertions(+), 8 deletions(-) diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index 3914a48679..6957d25774 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -587,7 +587,7 @@ static ErlNifFunc nif_funcs[] = { {"engine_finish_nif", 1, engine_finish_nif}, {"engine_free_nif", 1, engine_free_nif}, {"engine_load_dynamic_nif", 0, engine_load_dynamic_nif}, - {"engine_ctrl_cmd_strings_nif", 2, engine_ctrl_cmd_strings_nif}, + {"engine_ctrl_cmd_strings_nif", 3, engine_ctrl_cmd_strings_nif}, {"engine_register_nif", 2, engine_register_nif}, {"engine_unregister_nif", 2, engine_unregister_nif}, {"engine_add_nif", 1, engine_add_nif}, @@ -4994,7 +4994,7 @@ static ERL_NIF_TERM engine_ctrl_cmd_strings_nif(ErlNifEnv* env, int argc, const unsigned int cmds_len = 0; char **cmds = NULL; struct engine_ctx *ctx; - int i; + int i, optional = 0; // Get Engine if (!enif_get_resource(env, argv[0], engine_ctx_rtype, (void**)&ctx)) { @@ -5018,11 +5018,16 @@ static ERL_NIF_TERM engine_ctrl_cmd_strings_nif(ErlNifEnv* env, int argc, const } } + if(!enif_get_int(env, argv[2], &optional)) { + PRINTF_ERR0("engine_ctrl_cmd_strings_nif Leaved: Parameter optional not an integer"); + return enif_make_badarg(env); + } + for(i = 0; i < cmds_len; i+=2) { PRINTF_ERR2("Cmd: %s:%s\r\n", cmds[i] ? cmds[i] : "(NULL)", cmds[i+1] ? cmds[i+1] : "(NULL)"); - if(!ENGINE_ctrl_cmd_string(ctx->engine, cmds[i], cmds[i+1], 0)) { + if(!ENGINE_ctrl_cmd_string(ctx->engine, cmds[i], cmds[i+1], optional)) { PRINTF_ERR2("Command failed: %s:%s\r\n", cmds[i] ? cmds[i] : "(NULL)", cmds[i+1] ? cmds[i+1] : "(NULL)"); @@ -5031,7 +5036,7 @@ static ERL_NIF_TERM engine_ctrl_cmd_strings_nif(ErlNifEnv* env, int argc, const PRINTF_ERR0("engine_ctrl_cmd_strings_nif Leaved: {error, ctrl_cmd_failed}"); goto error; } -} + } error: for(i = 0; cmds != NULL && cmds[i] != NULL; i++) diff --git a/lib/crypto/doc/src/crypto.xml b/lib/crypto/doc/src/crypto.xml index dbc42812a8..464799b320 100644 --- a/lib/crypto/doc/src/crypto.xml +++ b/lib/crypto/doc/src/crypto.xml @@ -1060,6 +1060,57 @@ _FloatValue = rand:uniform(). % [0.0; 1.0[ + + engine_ctrl_cmd_string(Engine, CmdName, CmdArg) -> Result + Sends ctrl commands to an OpenSSL engine + + Engine = term() + CmdName = unicode:chardata() + CmdArg = unicode:chardata() + Result = ok | {error, Reason::term()} + + +

+ Sends ctrl commands to the OpenSSL engine given by Engine. + This function is the same as calling engine_ctrl_cmd_string/4 with + Optional set to false. +

+

+ The function throws a badarg if the parameters are in wrong format. + It may also throw the exception notsup in case there is + no engine support in the underlying OpenSSL implementation. +

+ + + + + engine_ctrl_cmd_string(Engine, CmdName, CmdArg, Optional) -> Result + Sends ctrl commands to an OpenSSL engine + + Engine = term() + CmdName = unicode:chardata() + CmdArg = unicode:chardata() + Optional = boolean() + Result = ok | {error, Reason::term()} + + +

+ Sends ctrl commands to the OpenSSL engine given by Engine. + Optional is a boolean argument that can relax the semantics of the function. + If set to true it will only return failure if the ENGINE supported the given + command name but failed while executing it, if the ENGINE doesn't support the command + name it will simply return success without doing anything. In this case we assume + the user is only supplying commands specific to the given ENGINE so we set this to + false. +

+

+ The function throws a badarg if the parameters are in wrong format. + It may also throw the exception notsup in case there is + no engine support in the underlying OpenSSL implementation. +

+ + + diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl index 641e526537..1a1b4f98b5 100644 --- a/lib/crypto/src/crypto.erl +++ b/lib/crypto/src/crypto.erl @@ -51,7 +51,9 @@ engine_load/3, engine_load/4, engine_unload/1, - engine_list/0 + engine_list/0, + engine_ctrl_cmd_string/3, + engine_ctrl_cmd_string/4 ]). -export_type([engine_ref/0, @@ -648,7 +650,7 @@ engine_load(EngineId, PreCmds, PostCmds, EngineMethods) when is_list(PreCmds), engine_load_1(Engine, PreCmds, PostCmds, EngineMethods) -> try - ok = engine_nif_wrapper(engine_ctrl_cmd_strings_nif(Engine, ensure_bin_cmds(PreCmds))), + ok = engine_nif_wrapper(engine_ctrl_cmd_strings_nif(Engine, ensure_bin_cmds(PreCmds), 0)), ok = engine_nif_wrapper(engine_add_nif(Engine)), ok = engine_nif_wrapper(engine_init_nif(Engine)), engine_load_2(Engine, PostCmds, EngineMethods), @@ -662,7 +664,7 @@ engine_load_1(Engine, PreCmds, PostCmds, EngineMethods) -> engine_load_2(Engine, PostCmds, EngineMethods) -> try - ok = engine_nif_wrapper(engine_ctrl_cmd_strings_nif(Engine, ensure_bin_cmds(PostCmds))), + ok = engine_nif_wrapper(engine_ctrl_cmd_strings_nif(Engine, ensure_bin_cmds(PostCmds), 0)), [ok = engine_nif_wrapper(engine_register_nif(Engine, engine_method_atom_to_int(Method))) || Method <- EngineMethods], ok @@ -728,6 +730,35 @@ engine_list(Engine0, IdList) -> end end. +%%---------------------------------------------------------------------- +%% Function: engine_ctrl_cmd_string/3 +%%---------------------------------------------------------------------- +-spec engine_ctrl_cmd_string(Engine::term(), + CmdName::unicode:chardata(), + CmdArg::unicode:chardata()) -> + ok | {error, Reason::term()}. +engine_ctrl_cmd_string(Engine, CmdName, CmdArg) -> + engine_ctrl_cmd_string(Engine, CmdName, CmdArg, false). + +%%---------------------------------------------------------------------- +%% Function: engine_ctrl_cmd_string/4 +%%---------------------------------------------------------------------- +-spec engine_ctrl_cmd_string(Engine::term(), + CmdName::unicode:chardata(), + CmdArg::unicode:chardata(), + Optional::boolean()) -> + ok | {error, Reason::term()}. +engine_ctrl_cmd_string(Engine, CmdName, CmdArg, Optional) -> + case engine_ctrl_cmd_strings_nif(Engine, + ensure_bin_cmds([{CmdName, CmdArg}]), + bool_to_int(Optional)) of + ok -> + ok; + notsup -> + erlang:error(notsup); + {error, Error} -> + {error, Error} + end. %%-------------------------------------------------------------------- %%% On load @@ -1227,7 +1258,7 @@ engine_init_nif(_Engine) -> ?nif_stub. engine_finish_nif(_Engine) -> ?nif_stub. engine_free_nif(_Engine) -> ?nif_stub. engine_load_dynamic_nif() -> ?nif_stub. -engine_ctrl_cmd_strings_nif(_Engine, _Cmds) -> ?nif_stub. +engine_ctrl_cmd_strings_nif(_Engine, _Cmds, _Optional) -> ?nif_stub. engine_add_nif(_Engine) -> ?nif_stub. engine_remove_nif(_Engine) -> ?nif_stub. engine_register_nif(_Engine, _EngineMethod) -> ?nif_stub. @@ -1270,6 +1301,9 @@ engine_methods_convert_to_bitmask(engine_method_none, _BitMask) -> engine_methods_convert_to_bitmask([M |Ms], BitMask) -> engine_methods_convert_to_bitmask(Ms, BitMask bor engine_method_atom_to_int(M)). +bool_to_int(true) -> 1; +bool_to_int(false) -> 0. + engine_method_atom_to_int(engine_method_rsa) -> 16#0001; engine_method_atom_to_int(engine_method_dsa) -> 16#0002; engine_method_atom_to_int(engine_method_dh) -> 16#0004; diff --git a/lib/crypto/test/engine_SUITE.erl b/lib/crypto/test/engine_SUITE.erl index 06cce832ac..f206f967c7 100644 --- a/lib/crypto/test/engine_SUITE.erl +++ b/lib/crypto/test/engine_SUITE.erl @@ -44,6 +44,8 @@ all() -> pre_command_fail_bad_value, pre_command_fail_bad_key, failed_engine_init, + ctrl_cmd_string, + ctrl_cmd_string_optional, {group, engine_stored_key} ]. @@ -354,6 +356,67 @@ failed_engine_init(Config) when is_list(Config) -> {skip, "Engine not supported on this OpenSSL version"} end. + +ctrl_cmd_string()-> + [{doc, "Test that a not known optional ctrl comand do not fail"}]. +ctrl_cmd_string(Config) when is_list(Config) -> + try + case crypto:get_test_engine() of + {error, notexist} -> + {skip, "OTP Test engine not found"}; + {ok, Engine} -> + case crypto:engine_load(<<"dynamic">>, + [{<<"SO_PATH">>, Engine}, + {<<"ID">>, <<"MD5">>}, + <<"LOAD">>], + []) of + {ok, E} -> + case crypto:engine_ctrl_cmd_string(E, <<"TEST">>, <<"17">>) of + ok -> + ct:fail(fail_ctrl_cmd_should_fail); + {error,ctrl_cmd_failed} -> + ok + end, + ok = crypto:engine_unload(E); + {error, bad_engine_id} -> + {skip, "Dynamic Engine not supported"} + end + end + catch + error:notsup -> + {skip, "Engine not supported on this OpenSSL version"} + end. + +ctrl_cmd_string_optional()-> + [{doc, "Test that a not known optional ctrl comand do not fail"}]. +ctrl_cmd_string_optional(Config) when is_list(Config) -> + try + case crypto:get_test_engine() of + {error, notexist} -> + {skip, "OTP Test engine not found"}; + {ok, Engine} -> + case crypto:engine_load(<<"dynamic">>, + [{<<"SO_PATH">>, Engine}, + {<<"ID">>, <<"MD5">>}, + <<"LOAD">>], + []) of + {ok, E} -> + case crypto:engine_ctrl_cmd_string(E, <<"TEST">>, <<"17">>, true) of + ok -> + ok; + _ -> + ct:fail(fail_ctrl_cmd_string) + end, + ok = crypto:engine_unload(E); + {error, bad_engine_id} -> + {skip, "Dynamic Engine not supported"} + end + end + catch + error:notsup -> + {skip, "Engine not supported on this OpenSSL version"} + end. + %%%---------------------------------------------------------------- %%% Pub/priv key storage tests. Thoose are for testing the crypto.erl %%% support for using priv/pub keys stored in an engine. -- cgit v1.2.3