mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/
synced 2026-04-18 06:33:43 -04:00
445e0cc38d
We make sure tcpi_rcv_mss and tp->scaling_ratio are correctly updated if no in-order packet has been received yet. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250711114006.480026-6-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
28 lines
785 B
Plaintext
28 lines
785 B
Plaintext
// SPDX-License-Identifier: GPL-2.0
|
|
|
|
--mss=1000
|
|
|
|
`./defaults.sh
|
|
sysctl -q net.ipv4.tcp_rmem="4096 131072 $((32*1024*1024))"`
|
|
|
|
+0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
|
|
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
|
|
+0 bind(3, ..., ...) = 0
|
|
+0 listen(3, 1) = 0
|
|
|
|
+0 < S 0:0(0) win 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7>
|
|
+0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10>
|
|
+.1 < . 1:1(0) ack 1 win 257
|
|
|
|
+0 accept(3, ..., ...) = 4
|
|
|
|
+0 < . 2001:11001(9000) ack 1 win 257
|
|
+0 > . 1:1(0) ack 1 win 81 <nop,nop,sack 2001:11001>
|
|
|
|
// check that ooo packet properly updates tcpi_rcv_mss
|
|
+0 %{ assert tcpi_rcv_mss == 1000, tcpi_rcv_mss }%
|
|
|
|
+0 < . 11001:21001(10000) ack 1 win 257
|
|
+0 > . 1:1(0) ack 1 win 81 <nop,nop,sack 2001:21001>
|
|
|