Include the received chunk padding when reporting an unknown chunk.
MFC after: 1 week
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parent
dbdf98e9a9
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39cbb549cc
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=275574
@ -5477,10 +5477,12 @@ __attribute__((noinline))
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if ((ch->chunk_type & 0x40) && (stcb != NULL)) {
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struct mbuf *mm;
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struct sctp_paramhdr *phd;
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int len;
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mm = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr),
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0, M_NOWAIT, 1, MT_DATA);
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if (mm) {
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len = min(SCTP_SIZE32(chk_length), (uint32_t) (length - *offset));
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phd = mtod(mm, struct sctp_paramhdr *);
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/*
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* We cheat and use param type since
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@ -5490,11 +5492,11 @@ __attribute__((noinline))
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* names.
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*/
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phd->param_type = htons(SCTP_CAUSE_UNRECOG_CHUNK);
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phd->param_length = htons(chk_length + sizeof(*phd));
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phd->param_length = htons(len + sizeof(*phd));
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SCTP_BUF_LEN(mm) = sizeof(*phd);
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SCTP_BUF_NEXT(mm) = SCTP_M_COPYM(m, *offset, chk_length, M_NOWAIT);
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SCTP_BUF_NEXT(mm) = SCTP_M_COPYM(m, *offset, len, M_NOWAIT);
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if (SCTP_BUF_NEXT(mm)) {
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if (sctp_pad_lastmbuf(SCTP_BUF_NEXT(mm), SCTP_SIZE32(chk_length) - chk_length, NULL) == NULL) {
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if (sctp_pad_lastmbuf(SCTP_BUF_NEXT(mm), SCTP_SIZE32(len) - len, NULL) == NULL) {
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sctp_m_freem(mm);
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} else {
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#ifdef SCTP_MBUF_LOGGING
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