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| author | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2007-03-20 15:27:17 -0300 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:27:02 -0700 |
| commit | 89560b53b92a07c529e13a462aa7fd87a844f1f5 (patch) | |
| tree | 89409bee68da1ee44b7945315efecd779d7fe60a /net/dccp/input.c | |
| parent | 7dfee1a9c07f80a82aa5fbad340146f2b5c794b4 (diff) | |
| download | lwn-89560b53b92a07c529e13a462aa7fd87a844f1f5.tar.gz lwn-89560b53b92a07c529e13a462aa7fd87a844f1f5.zip | |
[DCCP]: Sample RTT from SYN exchange
Function:
Diffstat (limited to 'net/dccp/input.c')
| -rw-r--r-- | net/dccp/input.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/dccp/input.c b/net/dccp/input.c index bd578c87b2e7..da6ec185ed5b 100644 --- a/net/dccp/input.c +++ b/net/dccp/input.c @@ -300,6 +300,14 @@ static int dccp_rcv_request_sent_state_process(struct sock *sk, if (dccp_parse_options(sk, skb)) goto out_invalid_packet; + /* Obtain RTT sample from SYN exchange (used by CCID 3) */ + if (dp->dccps_options_received.dccpor_timestamp_echo) { + struct timeval now; + + dccp_timestamp(sk, &now); + dp->dccps_syn_rtt = dccp_sample_rtt(sk, &now, NULL); + } + if (dccp_msk(sk)->dccpms_send_ack_vector && dccp_ackvec_add(dp->dccps_hc_rx_ackvec, sk, DCCP_SKB_CB(skb)->dccpd_seq, |