linux/net/sctp
Wei Yongjun 91bd6b1e03 sctp: Drop ICMP packet too big message with MTU larger than current PMTU
If ICMP packet too big message is received with MTU larger than current
PMTU, SCTP will still accept this ICMP message and sync the PMTU of assoc
with the wrong MTU.

Endpoing A                 Endpoint B
(ESTABLISHED)              (ESTABLISHED)
ICMP         --------->
(packet too big, MTU too larger)
                           sync PMTU

This patch fixed the problem by drop that ICMP message.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-23 00:59:52 -07:00
..
associola.c sctp: Rework the tsn map to use generic bitmap. 2008-10-08 14:18:39 -07:00
auth.c sctp: fix random memory dereference with SCTP_HMAC_IDENT option. 2008-08-27 16:09:49 -07:00
bind_addr.c sctp: try harder to figure out address family when checking wildcards 2008-10-01 11:33:06 -04:00
chunk.c SCTP: fix wrong debug counting of datamsg 2008-04-10 01:57:24 -07:00
command.c [SCTP]: Remove sctp_add_cmd_sf wrapper bloat 2008-03-27 17:54:29 -07:00
debug.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
endpointola.c sctp: fix potential panics in the SCTP-AUTH API. 2008-08-21 03:34:25 -07:00
input.c sctp: Drop ICMP packet too big message with MTU larger than current PMTU 2008-10-23 00:59:52 -07:00
inqueue.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
ipv6.c ipv6: added net argument to ICMP6_INC_STATS_BH 2008-10-08 11:14:13 -07:00
Kconfig sctp: Don't abort initialization when CONFIG_PROC_FS=n 2008-07-18 23:03:44 -07:00
Makefile sctp: Don't abort initialization when CONFIG_PROC_FS=n 2008-07-18 23:03:44 -07:00
objcnt.c [NET]: Fix heavy stack usage in seq_file output routines. 2008-04-24 01:02:16 -07:00
output.c sctp: reduce memory footprint of sctp_chunk structure 2008-10-01 11:33:06 -04:00
outqueue.c sctp: reduce memory footprint of sctp_chunk structure 2008-10-01 11:33:06 -04:00
primitive.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
proc.c sctp: remove sctp_assoc_proc_exit() 2008-07-22 14:21:30 -07:00
protocol.c sctp: Drop ipfargok in sctp_xmit function 2008-08-03 21:15:08 -07:00
sm_make_chunk.c sctp: shrink sctp_tsnmap some more by removing gabs array 2008-10-08 14:19:01 -07:00
sm_sideeffect.c sctp: Rework the tsn map to use generic bitmap. 2008-10-08 14:18:39 -07:00
sm_statefuns.c sctp: update SNMP statiscts when T5 timer expired. 2008-10-09 14:33:26 -07:00
sm_statetable.c sctp: Fix to start T5-shutdown-guard timer while enter SHUTDOWN-SENT state 2008-10-01 11:34:16 -04:00
socket.c sctp: try harder to figure out address family when checking wildcards 2008-10-01 11:33:06 -04:00
ssnmap.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
sysctl.c [SCTP]: Stop claiming that this is a "reference implementation" 2008-02-05 10:59:07 -05:00
transport.c sctp: Prevent uninitialized memory access 2008-07-18 23:04:39 -07:00
tsnmap.c sctp: shrink sctp_tsnmap some more by removing gabs array 2008-10-08 14:19:01 -07:00
ulpevent.c sctp: Rework the tsn map to use generic bitmap. 2008-10-08 14:18:39 -07:00
ulpqueue.c net: Remove __skb_insert() calls outside of skbuff internals. 2008-09-21 21:28:51 -07:00