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-rw-r--r--net/dccp/feat.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index ad6f9e2..23cea0e 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -665,11 +665,22 @@ int dccp_feat_insert_opts(struct dccp_sock *dp, struct dccp_request_sock *dreq,
return -1;
if (pos->needs_mandatory && dccp_insert_option_mandatory(skb))
return -1;
- /*
- * Enter CHANGING after transmitting the Change option (6.6.2).
- */
- if (pos->state == FEAT_INITIALISING)
- pos->state = FEAT_CHANGING;
+
+ if (skb->sk->sk_state == DCCP_OPEN &&
+ (opt == DCCPO_CONFIRM_R || opt == DCCPO_CONFIRM_L)) {
+ /*
+ * Confirms don't get retransmitted (6.6.3) once the
+ * connection is in state OPEN
+ */
+ dccp_feat_list_pop(pos);
+ } else {
+ /*
+ * Enter CHANGING after transmitting the Change
+ * option (6.6.2).
+ */
+ if (pos->state == FEAT_INITIALISING)
+ pos->state = FEAT_CHANGING;
+ }
}
return 0;
}
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