sctp: fix to check the source address of COOKIE-ECHO chunk
authorWei Yongjun <yjwei@cn.fujitsu.com>
Tue, 19 Apr 2011 21:30:51 +0000 (21:30 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 20 Apr 2011 08:51:05 +0000 (01:51 -0700)
commitde6becdc0844ff92b38ffd9f0c4db1d3de02835f
treef52df91a347ece7e4efc09ca2974e8e38f38a3f8
parent85c5ed4e44a262344ce43b4bf23204107923ca95
sctp: fix to check the source address of COOKIE-ECHO chunk

SCTP does not check whether the source address of COOKIE-ECHO
chunk is the original address of INIT chunk or part of the any
address parameters saved in COOKIE in CLOSED state. So even if
the COOKIE-ECHO chunk is from any address but with correct COOKIE,
the COOKIE-ECHO chunk still be accepted. If the COOKIE is not from
a valid address, the assoc should not be established.

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>
include/net/sctp/structs.h
net/sctp/sm_make_chunk.c
net/sctp/sm_sideeffect.c
net/sctp/sm_statefuns.c