When processing an incoming ABORT, SHUTDOWN_COMPLETE or ERROR (NAT related)
chunk, take always the T-bit into account, when checking the verification tag. MFC after: 3 days
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=252718
@ -4568,8 +4568,10 @@ __attribute__((noinline))
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if ((ch->chunk_type == SCTP_ABORT_ASSOCIATION) ||
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(ch->chunk_type == SCTP_SHUTDOWN_COMPLETE) ||
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(ch->chunk_type == SCTP_PACKET_DROPPED)) {
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if ((vtag_in == asoc->my_vtag) ||
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((ch->chunk_flags & SCTP_HAD_NO_TCB) &&
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/* Take the T-bit always into account. */
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if ((((ch->chunk_flags & SCTP_HAD_NO_TCB) == 0) &&
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(vtag_in == asoc->my_vtag)) ||
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(((ch->chunk_flags & SCTP_HAD_NO_TCB) == SCTP_HAD_NO_TCB) &&
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(vtag_in == asoc->peer_vtag))) {
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/* this is valid */
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} else {
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