diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/diameter/src/transport/diameter_sctp.erl | 88 |
1 files changed, 52 insertions, 36 deletions
diff --git a/lib/diameter/src/transport/diameter_sctp.erl b/lib/diameter/src/transport/diameter_sctp.erl index 9a65834647..79b8b851fb 100644 --- a/lib/diameter/src/transport/diameter_sctp.erl +++ b/lib/diameter/src/transport/diameter_sctp.erl @@ -68,6 +68,7 @@ -record(transport, {parent :: pid(), mode :: {accept, pid()} + | accept | {connect, {list(inet:ip_address()), uint(), list()}} %% {RAs, RP, Errors} | connect, @@ -349,6 +350,11 @@ terminate(_, #transport{assoc_id = undefined}) -> ok; terminate(_, #transport{socket = Sock, + mode = accept, + assoc_id = Id}) -> + close(Sock, Id); + +terminate(_, #transport{socket = Sock, mode = {accept, _}, assoc_id = Id}) -> close(Sock, Id); @@ -380,13 +386,16 @@ start_timer(S) -> %% Incoming message from SCTP. l({sctp, Sock, _RA, _RP, Data} = Msg, #listener{socket = Sock} = S) -> - setopts(Sock), - case find(Data, S) of + Id = assoc_id(Data), + + try find(Id, Data, S) of {TPid, NewS} -> - TPid ! Msg, + TPid ! {peeloff, peeloff(Sock, Id, TPid), Msg}, NewS; false -> S + after + setopts(Sock) end; %% Transport is asking message to be sent. See send/3 for why the send @@ -454,15 +463,19 @@ t(T,S) -> %% transition/2 -%% Incoming message. -transition({sctp, Sock, _RA, _RP, Data}, #transport{socket = Sock, - mode = {accept, _}} - = S) -> - recv(Data, S); +%% Listening process is transfering ownership of an association. +transition({peeloff, Sock, {sctp, LSock, _RA, _RP, _Data} = Msg}, + #transport{mode = {accept, _}, + socket = LSock} + = S) -> + transition(Msg, S#transport{socket = Sock}); -transition({sctp, Sock, _RA, _RP, Data}, #transport{socket = Sock} = S) -> +%% Incoming message. +transition({sctp, _Sock, _RA, _RP, Data}, #transport{socket = Sock} = S) -> setopts(Sock), recv(Data, S); +%% Don't match on Sock since in R15B01 it can be the listening socket +%% in the (peeled-off) accept case, which is likely a bug. %% Outgoing message. transition({diameter, {send, Msg}}, S) -> @@ -480,13 +493,18 @@ transition({diameter, {close, Pid}}, #transport{parent = Pid}) -> transition({diameter, {tls, _Ref, _Type, _Bool}}, _) -> stop; +%% Parent process has died. +transition({'DOWN', _, process, Pid, _}, #transport{parent = Pid}) -> + stop; + %% Listener process has died. transition({'DOWN', _, process, Pid, _}, #transport{mode = {accept, Pid}}) -> stop; -%% Parent process has died. -transition({'DOWN', _, process, Pid, _}, #transport{parent = Pid}) -> - stop; +%% Ditto but we have ownership of the association. It might be that +%% we'll go down anyway though. +transition({'DOWN', _, process, _Pid, _}, #transport{mode = accept}) -> + ok; %% Request for the local port number. transition({resolve_port, Pid}, #transport{socket = Sock}) @@ -545,14 +563,6 @@ send(Bin, #transport{streams = {_, OS}, %% send/3 -%% Messages have to be sent from the controlling process, which is -%% probably a bug. Sending from here causes an inet_reply, Sock, -%% Status} message to be sent to the controlling process while -%% gen_sctp:send/4 here hangs. -send(StreamId, Bin, #transport{assoc_id = AId, - mode = {accept, LPid}}) -> - LPid ! {send, AId, StreamId, Bin}; - send(StreamId, Bin, #transport{socket = Sock, assoc_id = AId}) -> send(Sock, AId, StreamId, Bin). @@ -635,21 +645,15 @@ up(#transport{parent = Pid, S#transport{mode = C}; up(#transport{parent = Pid, - mode = {accept, _}} + mode = {accept = A, _}} = S) -> diameter_peer:up(Pid), - S. + S#transport{mode = A}. -%% find/2 +%% find/3 -find({[#sctp_sndrcvinfo{assoc_id = Id}], _} - = Data, - #listener{tmap = T} - = S) -> - f(ets:lookup(T, Id), Data, S); - -find({_, Rec} = Data, #listener{tmap = T} = S) -> - f(ets:lookup(T, assoc_id(Rec)), Data, S). +find(Id, Data, #listener{tmap = T} = S) -> + f(ets:lookup(T, Id), Data, S). %% New association and a transport waiting for one: use it. f([], @@ -690,17 +694,29 @@ f([], _, _) -> %% assoc_id/1 -assoc_id(#sctp_shutdown_event{assoc_id = Id}) -> +assoc_id({[#sctp_sndrcvinfo{assoc_id = Id}], _}) -> + Id; +assoc_id({_, Rec}) -> + id(Rec). + +id(#sctp_shutdown_event{assoc_id = Id}) -> Id; -assoc_id(#sctp_assoc_change{assoc_id = Id}) -> +id(#sctp_assoc_change{assoc_id = Id}) -> Id; -assoc_id(#sctp_sndrcvinfo{assoc_id = Id}) -> +id(#sctp_sndrcvinfo{assoc_id = Id}) -> Id; -assoc_id(#sctp_paddr_change{assoc_id = Id}) -> +id(#sctp_paddr_change{assoc_id = Id}) -> Id; -assoc_id(#sctp_adaptation_event{assoc_id = Id}) -> +id(#sctp_adaptation_event{assoc_id = Id}) -> Id. +%% peeloff/3 + +peeloff(LSock, Id, TPid) -> + {ok, Sock} = gen_sctp:peeloff(LSock, Id), + ok = gen_sctp:controlling_process(Sock, TPid), + Sock. + %% connect/4 connect(_, [], _, Reasons) -> |