Revision 9839ff0dead906e85e4d17490aeff87a5859a157 authored by Xufeng Zhang on 23 January 2013, 16:44:34 UTC, committed by David S. Miller on 28 January 2013, 00:32:23 UTC
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>
1 parent 75356a8
| File | Mode | Size |
|---|---|---|
| README.dvb-usb | -rw-r--r-- | 9.7 KB |
| avermedia.txt | -rw-r--r-- | 13.6 KB |
| bt8xx.txt | -rw-r--r-- | 3.8 KB |
| cards.txt | -rw-r--r-- | 4.7 KB |
| ci.txt | -rw-r--r-- | 6.6 KB |
| contributors.txt | -rw-r--r-- | 3.0 KB |
| faq.txt | -rw-r--r-- | 5.7 KB |
| get_dvb_firmware | -rwxr-xr-x | 24.5 KB |
| it9137.txt | -rw-r--r-- | 289 bytes |
| lmedm04.txt | -rw-r--r-- | 2.0 KB |
| opera-firmware.txt | -rw-r--r-- | 482 bytes |
| readme.txt | -rw-r--r-- | 1.6 KB |
| technisat.txt | -rw-r--r-- | 2.6 KB |
| ttusb-dec.txt | -rw-r--r-- | 1.1 KB |
| udev.txt | -rw-r--r-- | 2.2 KB |
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