Fix the handling of unordered fragmented user messages using DATA chunks.
There were two bugs: * There was an accounting bug resulting in reporting a too small a_rwnd. * There are a bug when abandoning messages in the reassembly queue. MFC after: 4 weeks
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=306082
@ -809,6 +809,8 @@ sctp_handle_old_unordered_data(struct sctp_tcb *stcb,
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tchk = TAILQ_FIRST(&control->reasm);
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if (tchk->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) {
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TAILQ_REMOVE(&control->reasm, tchk, sctp_next);
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asoc->size_on_reasm_queue -= tchk->send_size;
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sctp_ucount_decr(asoc->cnt_on_reasm_queue);
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nc->first_frag_seen = 1;
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nc->fsn_included = tchk->rec.data.fsn_num;
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nc->data = tchk->data;
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@ -5322,6 +5324,9 @@ sctp_flush_reassm_for_str_seq(struct sctp_tcb *stcb,
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/* Not found */
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return;
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}
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if (old && !ordered && SCTP_TSN_GT(control->fsn_included, cumtsn)) {
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return;
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}
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TAILQ_FOREACH_SAFE(chk, &control->reasm, sctp_next, nchk) {
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/* Purge hanging chunks */
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if (old && (ordered == 0)) {
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