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author | Xufeng Zhang <xufeng.zhang@windriver.com> | 2013-01-23 16:44:34 +0000 |
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committer | David S. Miller <davem@davemloft.net> | 2013-01-27 19:32:23 -0500 |
commit | 9839ff0dead906e85e4d17490aeff87a5859a157 (patch) | |
tree | 973d58fb33113475e1141648684f579666beec94 /Documentation/filesystems/ubifs.txt | |
parent | 75356a8143426a1301bc66c4fb920dcb1bd5e934 (diff) | |
download | linux-stable-9839ff0dead906e85e4d17490aeff87a5859a157.tar.gz linux-stable-9839ff0dead906e85e4d17490aeff87a5859a157.tar.bz2 linux-stable-9839ff0dead906e85e4d17490aeff87a5859a157.zip |
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>
Diffstat (limited to 'Documentation/filesystems/ubifs.txt')
0 files changed, 0 insertions, 0 deletions