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authorLars Thorsen <[email protected]>2018-08-15 12:26:44 +0200
committerLars Thorsen <[email protected]>2018-08-21 14:45:43 +0200
commit5b51f9d9875750f27f2fa8a75f22e0fcb9a6bec0 (patch)
tree3b96eba95abb656fc9c0e27ce18192aa529834bf /lib/crypto/src/crypto.erl
parent70aceaec7a985c27787f37ce07e4b072ec52ed61 (diff)
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Updated the engine load functionality
- engine_load/3/4 can be called multiple times for same engine if it allows it (eg doesn't contain global data) - ensure_engine_loaded/2/3 is new functions that guarantees that the engine is just loaded once by adding it to OpenSSL internal engine list and check that before loading. - ensure_engine_unloaded/1/2 is new functions that is used to unload engines loaded with ensure_engine_loaded (remove it from OpenSSL internal engine list and then unload). - new utility functions engine_by_id/1, engine_add/1, engine_remove/1, engine_get_id/1 and engine_get_name/1
Diffstat (limited to 'lib/crypto/src/crypto.erl')
-rw-r--r--lib/crypto/src/crypto.erl174
1 files changed, 146 insertions, 28 deletions
diff --git a/lib/crypto/src/crypto.erl b/lib/crypto/src/crypto.erl
index 1a1b4f98b5..0d85b94b57 100644
--- a/lib/crypto/src/crypto.erl
+++ b/lib/crypto/src/crypto.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2017. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2018. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
@@ -51,9 +51,18 @@
engine_load/3,
engine_load/4,
engine_unload/1,
+ engine_by_id/1,
engine_list/0,
engine_ctrl_cmd_string/3,
- engine_ctrl_cmd_string/4
+ engine_ctrl_cmd_string/4,
+ engine_add/1,
+ engine_remove/1,
+ engine_get_id/1,
+ engine_get_name/1,
+ ensure_engine_loaded/2,
+ ensure_engine_loaded/3,
+ ensure_engine_unloaded/1,
+ ensure_engine_unloaded/2
]).
-export_type([engine_ref/0,
@@ -444,7 +453,7 @@ sign(Algorithm, Type, Data, Key, Options) ->
-type engine_key_ref() :: #{engine := engine_ref(),
key_id := key_id(),
password => password(),
- term() => term()
+ term() => term()
}.
-type pk_algs() :: rsa | ecdsa | dss .
@@ -604,7 +613,7 @@ compute_key(ecdh, Others, My, Curve) ->
-type engine_method_type() :: engine_method_rsa | engine_method_dsa | engine_method_dh |
engine_method_rand | engine_method_ecdh | engine_method_ecdsa |
engine_method_ciphers | engine_method_digests | engine_method_store |
- engine_method_pkey_meths | engine_method_pkey_asn1_meths |
+ engine_method_pkey_meths | engine_method_pkey_asn1_meths |
engine_method_ec.
-type engine_ref() :: term().
@@ -621,7 +630,8 @@ engine_get_all_methods() ->
PreCmds::[{unicode:chardata(), unicode:chardata()}],
PostCmds::[{unicode:chardata(), unicode:chardata()}]) ->
{ok, Engine::engine_ref()} | {error, Reason::term()}.
-engine_load(EngineId, PreCmds, PostCmds) when is_list(PreCmds), is_list(PostCmds) ->
+engine_load(EngineId, PreCmds, PostCmds) when is_list(PreCmds),
+ is_list(PostCmds) ->
engine_load(EngineId, PreCmds, PostCmds, engine_get_all_methods()).
%%----------------------------------------------------------------------
@@ -638,28 +648,26 @@ engine_load(EngineId, PreCmds, PostCmds, EngineMethods) when is_list(PreCmds),
ok = notsup_to_error(engine_load_dynamic_nif()),
case notsup_to_error(engine_by_id_nif(ensure_bin_chardata(EngineId))) of
{ok, Engine} ->
- ok = engine_load_1(Engine, PreCmds, PostCmds, EngineMethods),
- {ok, Engine};
+ engine_load_1(Engine, PreCmds, PostCmds, EngineMethods);
{error, Error1} ->
{error, Error1}
end
catch
- throw:Error2 ->
- Error2
+ throw:Error2 ->
+ Error2
end.
engine_load_1(Engine, PreCmds, PostCmds, EngineMethods) ->
try
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),
- ok
+ {ok, Engine}
catch
- throw:Error ->
- %% The engine couldn't initialise, release the structural reference
- ok = engine_free_nif(Engine),
- throw(Error)
+ throw:Error ->
+ %% The engine couldn't initialise, release the structural reference
+ ok = engine_free_nif(Engine),
+ throw(Error)
end.
engine_load_2(Engine, PostCmds, EngineMethods) ->
@@ -689,7 +697,6 @@ engine_unload(Engine, EngineMethods) ->
try
[ok = engine_nif_wrapper(engine_unregister_nif(Engine, engine_method_atom_to_int(Method))) ||
Method <- EngineMethods],
- ok = engine_nif_wrapper(engine_remove_nif(Engine)),
%% Release the functional reference from engine_init_nif
ok = engine_nif_wrapper(engine_finish_nif(Engine)),
%% Release the structural reference from engine_by_id_nif
@@ -700,6 +707,41 @@ engine_unload(Engine, EngineMethods) ->
end.
%%----------------------------------------------------------------------
+%% Function: engine_by_id/1
+%%----------------------------------------------------------------------
+engine_by_id(EngineId) ->
+ try
+ notsup_to_error(engine_by_id_nif(ensure_bin_chardata(EngineId)))
+ catch
+ throw:Error ->
+ Error
+ end.
+
+%%----------------------------------------------------------------------
+%% Function: engine_add/1
+%%----------------------------------------------------------------------
+engine_add(Engine) ->
+ notsup_to_error(engine_add_nif(Engine)).
+
+%%----------------------------------------------------------------------
+%% Function: engine_remove/1
+%%----------------------------------------------------------------------
+engine_remove(Engine) ->
+ notsup_to_error(engine_remove_nif(Engine)).
+
+%%----------------------------------------------------------------------
+%% Function: engine_get_id/1
+%%----------------------------------------------------------------------
+engine_get_id(Engine) ->
+ notsup_to_error(engine_get_id_nif(Engine)).
+
+%%----------------------------------------------------------------------
+%% Function: engine_get_name/1
+%%----------------------------------------------------------------------
+engine_get_name(Engine) ->
+ notsup_to_error(engine_get_name_nif(Engine)).
+
+%%----------------------------------------------------------------------
%% Function: engine_list/0
%%----------------------------------------------------------------------
-spec engine_list() ->
@@ -710,9 +752,9 @@ engine_list() ->
[];
{ok, Engine} ->
case notsup_to_error(engine_get_id_nif(Engine)) of
- {ok, <<>>} ->
+ <<>> ->
engine_list(Engine, []);
- {ok, EngineId} ->
+ EngineId ->
engine_list(Engine, [EngineId])
end
end.
@@ -723,9 +765,9 @@ engine_list(Engine0, IdList) ->
lists:reverse(IdList);
{ok, Engine1} ->
case notsup_to_error(engine_get_id_nif(Engine1)) of
- {ok, <<>>} ->
+ <<>> ->
engine_list(Engine1, IdList);
- {ok, EngineId} ->
+ EngineId ->
engine_list(Engine1, [EngineId |IdList])
end
end.
@@ -734,7 +776,7 @@ engine_list(Engine0, IdList) ->
%% Function: engine_ctrl_cmd_string/3
%%----------------------------------------------------------------------
-spec engine_ctrl_cmd_string(Engine::term(),
- CmdName::unicode:chardata(),
+ CmdName::unicode:chardata(),
CmdArg::unicode:chardata()) ->
ok | {error, Reason::term()}.
engine_ctrl_cmd_string(Engine, CmdName, CmdArg) ->
@@ -744,13 +786,13 @@ engine_ctrl_cmd_string(Engine, CmdName, CmdArg) ->
%% Function: engine_ctrl_cmd_string/4
%%----------------------------------------------------------------------
-spec engine_ctrl_cmd_string(Engine::term(),
- CmdName::unicode:chardata(),
+ 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}]),
+ case engine_ctrl_cmd_strings_nif(Engine,
+ ensure_bin_cmds([{CmdName, CmdArg}]),
bool_to_int(Optional)) of
ok ->
ok;
@@ -760,6 +802,82 @@ engine_ctrl_cmd_string(Engine, CmdName, CmdArg, Optional) ->
{error, Error}
end.
+%%----------------------------------------------------------------------
+%% Function: ensure_engine_loaded/2
+%% Special version of load that only uses dynamic engine to load
+%%----------------------------------------------------------------------
+ensure_engine_loaded(EngineId, LibPath) ->
+ ensure_engine_loaded(EngineId, LibPath, engine_get_all_methods()).
+
+%%----------------------------------------------------------------------
+%% Function: ensure_engine_loaded/3
+%% Special version of load that only uses dynamic engine to load
+%%----------------------------------------------------------------------
+ensure_engine_loaded(EngineId, LibPath, EngineMethods) ->
+ try
+ List = crypto:engine_list(),
+ case lists:member(EngineId, List) of
+ true ->
+ notsup_to_error(engine_by_id_nif(ensure_bin_chardata(EngineId)));
+ false ->
+ ok = notsup_to_error(engine_load_dynamic_nif()),
+ case notsup_to_error(engine_by_id_nif(ensure_bin_chardata(<<"dynamic">>))) of
+ {ok, Engine} ->
+ PreCommands = [{<<"SO_PATH">>, ensure_bin_chardata(LibPath)},
+ {<<"ID">>, ensure_bin_chardata(EngineId)},
+ <<"LOAD">>],
+ ensure_engine_loaded_1(Engine, PreCommands, EngineMethods);
+ {error, Error1} ->
+ {error, Error1}
+ end
+ end
+ catch
+ throw:Error2 ->
+ Error2
+ end.
+
+ensure_engine_loaded_1(Engine, PreCmds, Methods) ->
+ try
+ 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)),
+ ensure_engine_loaded_2(Engine, Methods),
+ {ok, Engine}
+ catch
+ throw:Error ->
+ %% The engine couldn't initialise, release the structural reference
+ ok = engine_free_nif(Engine),
+ throw(Error)
+ end.
+
+ensure_engine_loaded_2(Engine, Methods) ->
+ try
+ [ok = engine_nif_wrapper(engine_register_nif(Engine, engine_method_atom_to_int(Method))) ||
+ Method <- Methods],
+ ok
+ catch
+ throw:Error ->
+ %% The engine registration failed, release the functional reference
+ ok = engine_finish_nif(Engine),
+ throw(Error)
+ end.
+%%----------------------------------------------------------------------
+%% Function: ensure_engine_unloaded/1
+%%----------------------------------------------------------------------
+ensure_engine_unloaded(Engine) ->
+ ensure_engine_unloaded(Engine, engine_get_all_methods()).
+
+%%----------------------------------------------------------------------
+%% Function: ensure_engine_unloaded/2
+%%----------------------------------------------------------------------
+ensure_engine_unloaded(Engine, EngineMethods) ->
+ case engine_remove(Engine) of
+ ok ->
+ engine_unload(Engine, EngineMethods);
+ {error, E} ->
+ {error, E}
+ end.
+
%%--------------------------------------------------------------------
%%% On load
%%--------------------------------------------------------------------
@@ -827,7 +945,7 @@ path2bin(Path) when is_list(Path) ->
max_bytes() ->
?MAX_BYTES_TO_NIF.
-notsup_to_error(notsup) ->
+notsup_to_error(notsup) ->
erlang:error(notsup);
notsup_to_error(Other) ->
Other.
@@ -1104,7 +1222,7 @@ privkey_to_pubkey(Alg, EngineMap) when Alg == rsa; Alg == dss; Alg == ecdsa ->
error:notsup ->
{error, notsup}
end.
-
+
privkey_to_pubkey_nif(_Alg, _EngineMap) -> ?nif_stub.
@@ -1266,6 +1384,7 @@ engine_unregister_nif(_Engine, _EngineMethod) -> ?nif_stub.
engine_get_first_nif() -> ?nif_stub.
engine_get_next_nif(_Engine) -> ?nif_stub.
engine_get_id_nif(_Engine) -> ?nif_stub.
+engine_get_name_nif(_Engine) -> ?nif_stub.
engine_get_all_methods_nif() -> ?nif_stub.
%%--------------------------------------------------------------------
@@ -1323,7 +1442,7 @@ get_test_engine() ->
Type = erlang:system_info(system_architecture),
LibDir = filename:join([code:priv_dir(crypto), "lib"]),
ArchDir = filename:join([LibDir, Type]),
- case filelib:is_dir(ArchDir) of
+ case filelib:is_dir(ArchDir) of
true -> check_otp_test_engine(ArchDir);
false -> check_otp_test_engine(LibDir)
end.
@@ -1341,4 +1460,3 @@ check_otp_test_engine(LibDir) ->
{error, notexist}
end
end.
-