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-rw-r--r--net/dccp/options.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/dccp/options.c b/net/dccp/options.c
index 9074ca7977b2..14b621227323 100644
--- a/net/dccp/options.c
+++ b/net/dccp/options.c
@@ -563,6 +563,14 @@ int dccp_insert_options(struct sock *sk, struct sk_buff *skb)
dccp_insert_options_feat(sk, skb))
return -1;
+ /*
+ * Obtain RTT sample from Request/Response exchange.
+ * This is currently used in CCID 3 initialisation.
+ */
+ if (DCCP_SKB_CB(skb)->dccpd_type == DCCP_PKT_REQUEST &&
+ dccp_insert_option_timestamp(sk, skb))
+ return -1;
+
/* XXX: insert other options when appropriate */
if (DCCP_SKB_CB(skb)->dccpd_opt_len != 0) {