Author: tuexen
Date: Wed Aug 19 12:02:28 2009
New Revision: 196376
URL: http://svn.freebsd.org/changeset/base/196376
Log:
Fix a bug in the handling of unreliable messages
which results in stalled associations.
Approved by: re, rrs (mentor)
MFC after: immediately
Modified:
head/sys/netinet/sctputil.c
Modified: head/sys/netinet/sctputil.c
==============================================================================
--- head/sys/netinet/sctputil.c Wed Aug 19 03:58:12 2009 (r196375)
+++ head/sys/netinet/sctputil.c Wed Aug 19 12:02:28 2009 (r196376)
@@ -4667,8 +4667,10 @@ sctp_release_pr_sctp_chunk(struct sctp_t
stcb->asoc.peers_rwnd += tp1->send_size;
stcb->asoc.peers_rwnd +=
SCTP_BASE_SYSCTL(sctp_peer_chunk_oh);
sctp_ulp_notify(SCTP_NOTIFY_DG_FAIL, stcb, reason, tp1,
so_locked);
- sctp_m_freem(tp1->data);
- tp1->data = NULL;
+ if (tp1->data) {
+ sctp_m_freem(tp1->data);
+ tp1->data = NULL;
+ }
do_wakeup_routine = 1;
if (PR_SCTP_BUF_ENABLED(tp1->flags)) {
stcb->asoc.sent_queue_cnt_removeable--;
@@ -4715,12 +4717,14 @@ next_on_sent:
*/
chk = tp1;
ret_sz += tp1->book_size;
- sctp_ulp_notify(SCTP_NOTIFY_DG_FAIL, stcb, reason, tp1,
so_locked);
sctp_free_bufspace(stcb, &stcb->asoc, tp1, 1);
- sctp_m_freem(tp1->data);
+ sctp_ulp_notify(SCTP_NOTIFY_DG_FAIL, stcb, reason, tp1,
so_locked);
+ if (tp1->data) {
+ sctp_m_freem(tp1->data);
+ tp1->data = NULL;
+ }
/* No flight involved here book the size to 0 */
tp1->book_size = 0;
- tp1->data = NULL;
if (tp1->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG) {
foundeom = 1;
}
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