Author: tuexen
Date: Mon Sep 20 12:19:11 2010
New Revision: 212897
URL: http://svn.freebsd.org/changeset/base/212897
Log:
Fix a locking issue which resulted in aborted associations
due to a corrupted nr-mapping array.
MFC after: 2 weeks.
Modified:
head/sys/netinet/sctp_indata.c
Modified: head/sys/netinet/sctp_indata.c
==============================================================================
--- head/sys/netinet/sctp_indata.c Mon Sep 20 11:53:57 2010
(r212896)
+++ head/sys/netinet/sctp_indata.c Mon Sep 20 12:19:11 2010
(r212897)
@@ -1776,6 +1776,10 @@ sctp_process_a_data_chunk(struct sctp_tc
if (control == NULL) {
goto failed_express_del;
}
+ SCTP_SET_TSN_PRESENT(asoc->nr_mapping_array, gap);
+ if (compare_with_wrap(tsn, asoc->highest_tsn_inside_nr_map,
MAX_TSN)) {
+ asoc->highest_tsn_inside_nr_map = tsn;
+ }
sctp_add_to_readq(stcb->sctp_ep, stcb,
control, &stcb->sctp_socket->so_rcv,
1, SCTP_READ_LOCK_NOT_HELD, SCTP_SO_NOT_LOCKED);
@@ -1791,10 +1795,6 @@ sctp_process_a_data_chunk(struct sctp_tc
}
control = NULL;
- SCTP_SET_TSN_PRESENT(asoc->nr_mapping_array, gap);
- if (compare_with_wrap(tsn, asoc->highest_tsn_inside_nr_map,
MAX_TSN)) {
- asoc->highest_tsn_inside_nr_map = tsn;
- }
goto finish_express_del;
}
failed_express_del:
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