diff options
| author |   Florin Coras <fcoras@cisco.com> | 2017-09-24 19:43:08 -0400 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2017-09-25 19:23:24 +0000 |
| commit | f1762d6fa8cbc1a8fae691e568e73e94d5dcbc93 (patch) | |
| tree | a2ecedb34dbfb805855bc3ede0f098f03b4f9b78 /src/vnet/tcp/tcp_output.c | |
| parent | 95524c3a2ed435bf05781a8c052305a6327c90b0 (diff) | |
tcp: do not sample rtt for retransmitted segments
Change-Id: I365c31607332a944ef498369881332b515894ed7
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp_output.c')
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index be29f05f65c..cb1fcc9ab49 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -918,7 +918,24 @@ tcp_send_reset (tcp_connection_t * tc) opts_write_len = tcp_options_write ((u8 *) (th + 1), &tc->snd_opts); ASSERT (opts_write_len == tc->snd_opts_len); vnet_buffer (b)->tcp.connection_index = tc->c_c_index; - tcp_enqueue_to_output_now (vm, b, bi, tc->c_is_ip4); + if (tc->c_is_ip4) + { + ip4_header_t *ih4; + ih4 = vlib_buffer_push_ip4 (vm, b, &tc->c_lcl_ip.ip4, + &tc->c_rmt_ip.ip4, IP_PROTOCOL_TCP, 0); + th->checksum = ip4_tcp_udp_compute_checksum (vm, b, ih4); + } + else + { + int bogus = ~0; + ip6_header_t *ih6; + ih6 = vlib_buffer_push_ip6 (vm, b, &tc->c_lcl_ip.ip6, + &tc->c_rmt_ip.ip6, IP_PROTOCOL_TCP); + th->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ih6, &bogus); + ASSERT (!bogus); + } + tcp_enqueue_to_ip_lookup_now (vm, b, bi, tc->c_is_ip4); + TCP_EVT_DBG (TCP_EVT_RST_SENT, tc); } void @@ -1324,7 +1341,7 @@ tcp_rtx_timeout_cc (tcp_connection_t * tc) tc->ssthresh = clib_max (tcp_flight_size (tc) / 2, 2 * tc->snd_mss); tc->cwnd = tcp_loss_wnd (tc); tc->snd_congestion = tc->snd_una_max; - + tc->rtt_ts = 0; tcp_recovery_on (tc); } |