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-rw-r--r--source3/libsmb/smb_signing.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/source3/libsmb/smb_signing.c b/source3/libsmb/smb_signing.c
index 8a056f659f..9010dbf5cb 100644
--- a/source3/libsmb/smb_signing.c
+++ b/source3/libsmb/smb_signing.c
@@ -46,15 +46,23 @@ static void store_sequence_for_reply(struct outstanding_packet_lookup **list,
uint16 mid, uint32 reply_seq_num)
{
struct outstanding_packet_lookup *t;
- struct outstanding_packet_lookup *tmp;
-
+
t = smb_xmalloc(sizeof(*t));
ZERO_STRUCTP(t);
- DLIST_ADD_END(*list, t, tmp);
t->mid = mid;
t->reply_seq_num = reply_seq_num;
+ /*
+ * Add to the *start* of the list not the end of the list.
+ * This ensures that the *last* send sequence with this mid
+ * is returned by preference.
+ * This can happen if the mid wraps and one of the early
+ * mid numbers didn't get a reply and is still lurking on
+ * the list. JRA. Found by Fran Fabrizio <fran@cis.uab.edu>.
+ */
+
+ DLIST_ADD(*list, t);
DEBUG(10,("store_sequence_for_reply: stored seq = %u mid = %u\n",
(unsigned int)reply_seq_num, (unsigned int)mid ));
}