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authortuexen <tuexen@FreeBSD.org>2010-12-16 21:01:02 +0000
committertuexen <tuexen@FreeBSD.org>2010-12-16 21:01:02 +0000
commit8bce5df51898fc82ba0869633041d697295d14bf (patch)
treedeecf1504bcde5528fb54ab3a5ef526afc1734a6 /sys/netinet/sctp_indata.c
parent595eb1de94cae05d53df41a69722750b50bb1a29 (diff)
downloadFreeBSD-src-8bce5df51898fc82ba0869633041d697295d14bf.zip
FreeBSD-src-8bce5df51898fc82ba0869633041d697295d14bf.tar.gz
Bugfix: Take also the nr-mapping array into account when detecting
gaps. Reviewed by: rrs@ MFC after: 3 days.
Diffstat (limited to 'sys/netinet/sctp_indata.c')
-rw-r--r--sys/netinet/sctp_indata.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/sys/netinet/sctp_indata.c b/sys/netinet/sctp_indata.c
index f028ebd..3300c97 100644
--- a/sys/netinet/sctp_indata.c
+++ b/sys/netinet/sctp_indata.c
@@ -2585,8 +2585,9 @@ sctp_process_data(struct mbuf **mm, int iphlen, int *offset, int length,
int num_chunks = 0; /* number of control chunks processed */
int stop_proc = 0;
int chk_length, break_flag, last_chunk;
- int abort_flag = 0, was_a_gap = 0;
+ int abort_flag = 0, was_a_gap;
struct mbuf *m;
+ uint32_t highest_tsn;
/* set the rwnd */
sctp_set_rwnd(stcb, &stcb->asoc);
@@ -2594,11 +2595,12 @@ sctp_process_data(struct mbuf **mm, int iphlen, int *offset, int length,
m = *mm;
SCTP_TCB_LOCK_ASSERT(stcb);
asoc = &stcb->asoc;
- if (compare_with_wrap(stcb->asoc.highest_tsn_inside_map,
- stcb->asoc.cumulative_tsn, MAX_TSN)) {
- /* there was a gap before this data was processed */
- was_a_gap = 1;
+ if (compare_with_wrap(asoc->highest_tsn_inside_nr_map, asoc->highest_tsn_inside_map, MAX_TSN)) {
+ highest_tsn = asoc->highest_tsn_inside_nr_map;
+ } else {
+ highest_tsn = asoc->highest_tsn_inside_map;
}
+ was_a_gap = compare_with_wrap(highest_tsn, stcb->asoc.cumulative_tsn, MAX_TSN);
/*
* setup where we got the last DATA packet from for any SACK that
* may need to go out. Don't bump the net. This is done ONLY when a
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