Author: tuexen
Date: Thu Feb 4 21:02:29 2010
New Revision: 203503
URL: http://svn.freebsd.org/changeset/base/203503
Log:
Restore the checksum received before processing the packet.
MFC after: 1 week
Modified:
head/sys/netinet/sctp_input.c
Modified: head/sys/netinet/sctp_input.c
==============================================================================
--- head/sys/netinet/sctp_input.c Thu Feb 4 19:49:41 2010
(r203502)
+++ head/sys/netinet/sctp_input.c Thu Feb 4 21:02:29 2010
(r203503)
@@ -5806,6 +5806,7 @@ sctp_input_with_port(struct mbuf *i_pak,
}
sh->checksum = 0; /* prepare for calc */
calc_check = sctp_calculate_cksum(m, iphlen);
+ sh->checksum = check;
SCTP_STAT_INCR(sctps_recvswcrc);
if (calc_check != check) {
SCTPDBG(SCTP_DEBUG_INPUT1, "Bad CSUM on SCTP packet
calc_check:%x check:%x m:%p mlen:%d iphlen:%d\n",
@@ -5831,7 +5832,6 @@ sctp_input_with_port(struct mbuf *i_pak,
SCTP_STAT_INCR_COUNTER32(sctps_checksumerrors);
goto bad;
}
- sh->checksum = calc_check;
sctp_skip_csum_4:
/* destination port of 0 is illegal, based on RFC2960. */
if (sh->dest_port == 0) {
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