Date: Sun, 7 Jul 2013 17:06:33 +0000 (UTC) From: Michael Tuexen <tuexen@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r252977 - stable/9/sys/netinet Message-ID: <201307071706.r67H6XrS065696@svn.freebsd.org>
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Author: tuexen Date: Sun Jul 7 17:06:33 2013 New Revision: 252977 URL: http://svnweb.freebsd.org/changeset/base/252977 Log: MFC r252718: When processing an incoming ABORT, SHUTDOWN_COMPLETE or ERROR (NAT related) chunk, take always the T-bit into account, when checking the verification tag. Modified: stable/9/sys/netinet/sctp_input.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/netinet/sctp_input.c ============================================================================== --- stable/9/sys/netinet/sctp_input.c Sun Jul 7 17:04:23 2013 (r252976) +++ stable/9/sys/netinet/sctp_input.c Sun Jul 7 17:06:33 2013 (r252977) @@ -4568,8 +4568,10 @@ __attribute__((noinline)) if ((ch->chunk_type == SCTP_ABORT_ASSOCIATION) || (ch->chunk_type == SCTP_SHUTDOWN_COMPLETE) || (ch->chunk_type == SCTP_PACKET_DROPPED)) { - if ((vtag_in == asoc->my_vtag) || - ((ch->chunk_flags & SCTP_HAD_NO_TCB) && + /* Take the T-bit always into account. */ + if ((((ch->chunk_flags & SCTP_HAD_NO_TCB) == 0) && + (vtag_in == asoc->my_vtag)) || + (((ch->chunk_flags & SCTP_HAD_NO_TCB) == SCTP_HAD_NO_TCB) && (vtag_in == asoc->peer_vtag))) { /* this is valid */ } else {
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