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-rw-r--r--lib/ssl/src/ssl_manager.erl86
1 files changed, 61 insertions, 25 deletions
diff --git a/lib/ssl/src/ssl_manager.erl b/lib/ssl/src/ssl_manager.erl
index 3b02d96562..dc613eec11 100644
--- a/lib/ssl/src/ssl_manager.erl
+++ b/lib/ssl/src/ssl_manager.erl
@@ -29,13 +29,13 @@
%% Internal application API
-export([start_link/1,
connection_init/2, cache_pem_file/1,
- lookup_trusted_cert/3, issuer_candidate/1, 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]).
% Spawn export
--export([init_session_validator/1]).
+-export([init_session_validator/1, recache_pem/4]).
%% gen_server callbacks
-export([init/1, handle_call/3, handle_cast/2, handle_info/2,
@@ -43,6 +43,7 @@
-include("ssl_handshake.hrl").
-include("ssl_internal.hrl").
+-include_lib("kernel/include/file.hrl").
-record(state, {
session_cache,
@@ -76,16 +77,17 @@ start_link(Opts) ->
connection_init(Trustedcerts, Role) ->
call({connection_init, Trustedcerts, Role}).
%%--------------------------------------------------------------------
--spec cache_pem_file(string()) -> {ok, term()}.
+-spec cache_pem_file(string()) -> {ok, term()} | {error, reason()}.
%%
-%% Description: Cach a pem file and
+%% Description: Cach a pem file and return its content.
%%--------------------------------------------------------------------
-cache_pem_file(File) ->
- case ssl_certificate_db:lookup_cached_certs(File) of
- [{_,Content}] ->
- {ok, Content};
- [] ->
- call({cache_pem, File})
+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.
%%--------------------------------------------------------------------
-spec lookup_trusted_cert(reference(), serialnumber(), issuer()) ->
@@ -106,20 +108,21 @@ lookup_trusted_cert(Ref, SerialNumber, Issuer) ->
issuer_candidate(PrevCandidateKey) ->
ssl_certificate_db:issuer_candidate(PrevCandidateKey).
%%--------------------------------------------------------------------
--spec client_session_id(host(), port_num(), #ssl_options{}) -> session_id().
+-spec client_session_id(host(), port_num(), #ssl_options{},
+ der_cert() | undefined) -> session_id().
%%
%% Description: Select a session id for the client.
%%--------------------------------------------------------------------
-client_session_id(Host, Port, SslOpts) ->
- call({client_session_id, Host, Port, SslOpts}).
+client_session_id(Host, Port, SslOpts, OwnCert) ->
+ call({client_session_id, Host, Port, SslOpts, OwnCert}).
%%--------------------------------------------------------------------
--spec server_session_id(host(), port_num(), #ssl_options{}) -> session_id().
+-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) ->
- call({server_session_id, Port, SuggestedSessionId, SslOpts}).
+server_session_id(Port, SuggestedSessionId, SslOpts, OwnCert) ->
+ call({server_session_id, Port, SuggestedSessionId, SslOpts, OwnCert}).
%%--------------------------------------------------------------------
-spec register_session(port_num(), #session{}) -> ok.
@@ -201,28 +204,35 @@ handle_call({{connection_init, Trustedcerts, _Role}, Pid}, _From,
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
_:Reason ->
{reply, {error, Reason}, State}
- end.
+ end;
+handle_call({{recache_pem, File, LastWrite}, Pid}, From,
+ #state{certificate_db = Db} = State) ->
+ ssl_certificate_db:uncache_pem_file(File, Pid, Db),
+ spawn_link(?MODULE, recache_pem, [File, Db, LastWrite, From]),
+ {noreply, State}.
+
%%--------------------------------------------------------------------
-spec handle_cast(msg(), #state{}) -> {noreply, #state{}}.
%% Possible return values not used now.
@@ -286,12 +296,14 @@ 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};
@@ -362,3 +374,27 @@ session_validation({{{Host, Port}, _}, Session}, 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.
+
+
+recache_pem(File, Db, LastWrite, From) ->
+ case ssl_certificate_db:ref_count(File, Db, 0) of
+ 0 ->
+ Result = call({cache_pem, File, LastWrite}),
+ gen_server:reply(From, Result);
+ _ ->
+ timer:sleep(1000),
+ recache_pem(File, Db, LastWrite, From)
+ end.