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authorWei Yongjun <yjwei@cn.fujitsu.com>2008-06-19 16:07:48 -0700
committerDavid S. Miller <davem@davemloft.net>2008-06-19 16:07:48 -0700
commit7115e632f90952454ab6426e0d2151327162a30f (patch)
tree73e075f91f62d980c6eab66b549f0ec381f75891 /fs
parent0344f1c66b544609e867bd24aa7bfa789dfa9830 (diff)
sctp: Validate Initiate Tag when handling ICMP message
This patch add to validate initiate tag and chunk type if verification tag is 0 when handling ICMP message. RFC 4960, Appendix C. ICMP Handling ICMP6) An implementation MUST validate that the Verification Tag contained in the ICMP message matches the Verification Tag of the peer. If the Verification Tag is not 0 and does NOT match, discard the ICMP message. If it is 0 and the ICMP message contains enough bytes to verify that the chunk type is an INIT chunk and that the Initiate Tag matches the tag of the peer, continue with ICMP7. If the ICMP message is too short or the chunk type or the Initiate Tag does not match, silently discard the packet. 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>
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