iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
9839ff0dea
linux/net/sctp
History
Xufeng Zhang 9839ff0dea sctp: set association state to established in dupcook_a handler 
While sctp handling a duplicate COOKIE-ECHO and the action is
'Association restart', sctp_sf_do_dupcook_a() will processing
the unexpected COOKIE-ECHO for peer restart, but it does not set
the association state to SCTP_STATE_ESTABLISHED, so the association
could stuck in SCTP_STATE_SHUTDOWN_PENDING state forever.
This violates the sctp specification:
  RFC 4960 5.2.4. Handle a COOKIE ECHO when a TCB Exists
  Action
  A) In this case, the peer may have restarted. .....
     After this, the endpoint shall enter the ESTABLISHED state.

To resolve this problem, adding a SCTP_CMD_NEW_STATE cmd to the
command list before SCTP_CMD_REPLY cmd, this will set the restart
association to SCTP_STATE_ESTABLISHED state properly and also avoid
I-bit being set in the DATA chunk header when COOKIE_ACK is bundled
with DATA chunks.

Signed-off-by: Xufeng Zhang <xufeng.zhang@windriver.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-27 19:32:23 -05:00
..
associola.c sctp: Add RCU protection to assoc->transport_addr_list 2012-12-07 14:15:04 -05:00
auth.c sctp: fix bogus if statement in sctp_auth_recv_cid() 2012-08-16 13:36:29 -07:00
bind_addr.c sctp: Make sysctl tunables per net 2012-08-14 23:32:16 -07:00
chunk.c sctp: fix -ENOMEM result with invalid user space pointer in sendto() syscall 2012-11-28 11:11:17 -05:00
command.c
debug.c
endpointola.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
input.c sctp: fix a typo in prototype of __sctp_rcv_lookup() 2012-10-04 15:53:48 -04:00
inqueue.c sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call 2012-12-03 13:32:15 -05:00
ipv6.c sctp: fix CONFIG_SCTP_DBG_MSG=y null pointer dereference in sctp_v6_get_dst() 2012-11-30 12:21:27 -05:00
Kconfig sctp: fix Kconfig bug in default cookie hmac selection 2013-01-07 09:27:06 -08:00
Makefile
objcnt.c sctp: Make the proc files per network namespace. 2012-08-14 23:29:53 -07:00
output.c sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call 2012-12-03 13:32:15 -05:00
outqueue.c sctp: refactor sctp_outq_teardown to insure proper re-initalization 2013-01-17 18:39:56 -05:00
primitive.c sctp: Push struct net down to sctp_chunk_event_lookup 2012-08-14 23:30:37 -07:00
probe.c sctp: jsctp_sf_eat_sack: fix jprobes function signature mismatch 2012-12-15 17:14:39 -08:00
proc.c sctp: Add RCU protection to assoc->transport_addr_list 2012-12-07 14:15:04 -05:00
protocol.c sctp: Change defaults on cookie hmac selection 2012-12-15 17:14:38 -08:00
sm_make_chunk.c sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call 2012-12-03 13:32:15 -05:00
sm_sideeffect.c sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call 2012-12-03 13:32:15 -05:00
sm_statefuns.c sctp: set association state to established in dupcook_a handler 2013-01-27 19:32:23 -05:00
sm_statetable.c sctp: Make sysctl tunables per net 2012-08-14 23:32:16 -07:00
socket.c sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call 2012-12-03 13:32:15 -05:00
ssnmap.c
sysctl.c sctp: Make hmac algorithm selection for cookie generation dynamic 2012-10-26 02:22:18 -04:00
transport.c sctp: Add RCU protection to assoc->transport_addr_list 2012-12-07 14:15:04 -05:00
tsnmap.c sctp: use bitmap_weight 2012-11-17 22:01:18 -05:00
ulpevent.c netvm: prevent a stream-specific deadlock 2012-07-31 18:42:47 -07:00
ulpqueue.c sctp: Clean up type-punning in sctp_cmd_t union 2012-11-03 14:54:55 -04:00