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authorMicael Karlberg <[email protected]>2011-03-07 13:23:00 +0100
committerMicael Karlberg <[email protected]>2011-03-07 13:23:00 +0100
commit0674fe5dfde78dd611ee17d97541c4f02fddf774 (patch)
treeef23074d46e14a2af8b983315986d97226aca419 /lib/ssl/src/ssl_manager.erl
parentd9ca1a4e66bed40b4bf4ed7b9e734192d6f6d00a (diff)
parent29a6063aadd2b3b81442a711ee262ff347ca88fc (diff)
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Merge branch 'dev' into bmk/snmp/snmpc/OTP-9004
Diffstat (limited to 'lib/ssl/src/ssl_manager.erl')
-rw-r--r--lib/ssl/src/ssl_manager.erl89
1 files changed, 64 insertions, 25 deletions
diff --git a/lib/ssl/src/ssl_manager.erl b/lib/ssl/src/ssl_manager.erl
index 3b02d96562..f845b1ecc0 100644
--- a/lib/ssl/src/ssl_manager.erl
+++ b/lib/ssl/src/ssl_manager.erl
@@ -29,8 +29,8 @@
%% 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]).
@@ -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, Db),
+ cast({recache_pem, File, LastWrite, Pid, From}),
+ {noreply, State}.
+
%%--------------------------------------------------------------------
-spec handle_cast(msg(), #state{}) -> {noreply, #state{}}.
%% Possible return values not used now.
@@ -259,7 +269,21 @@ handle_cast({invalidate_session, Port, #session{session_id = ID}},
#state{session_cache = Cache,
session_cache_cb = CacheCb} = State) ->
CacheCb:delete(Cache, {Port, ID}),
- {noreply, State}.
+ {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.
%%--------------------------------------------------------------------
-spec handle_info(msg(), #state{}) -> {noreply, #state{}}.
@@ -286,12 +310,14 @@ 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 +388,16 @@ 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.