Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
selftests/net: packetdrill: remove tests for tcp_rcv_*big
Since commit 1d2fbaad7cd8 ("tcp: stronger sk_rcvbuf checks")
has been reverted we need to remove the corresponding tests.
Link: https://lore.kernel.org/20260227003359.2391017-1-kuba@kernel.org
Link: https://patch.msgid.link/20260227033446.2596457-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-77
-44
tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt
-44
tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt
···
1
-
// SPDX-License-Identifier: GPL-2.0
2
-
3
-
--mss=1000
4
-
5
-
`./defaults.sh`
6
-
7
-
0 `nstat -n`
8
-
9
-
// Establish a connection.
10
-
+0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
11
-
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
12
-
+0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [10000], 4) = 0
13
-
+0 bind(3, ..., ...) = 0
14
-
+0 listen(3, 1) = 0
15
-
16
-
+0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
17
-
+0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 0>
18
-
+.1 < . 1:1(0) ack 1 win 257
19
-
20
-
+0 accept(3, ..., ...) = 4
21
-
22
-
+0 < P. 1:4001(4000) ack 1 win 257
23
-
+0 > . 1:1(0) ack 4001 win 5000
24
-
25
-
// packet in sequence : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
26
-
+0 < P. 4001:54001(50000) ack 1 win 257
27
-
+0 > . 1:1(0) ack 4001 win 5000
28
-
29
-
// ooo packet. : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
30
-
+1 < P. 5001:55001(50000) ack 1 win 257
31
-
+0 > . 1:1(0) ack 4001 win 5000
32
-
33
-
// SKB_DROP_REASON_TCP_INVALID_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
34
-
+0 < P. 70001:80001(10000) ack 1 win 257
35
-
+0 > . 1:1(0) ack 4001 win 5000
36
-
37
-
+0 read(4, ..., 100000) = 4000
38
-
39
-
// If queue is empty, accept a packet even if its end_seq is above wup + rcv_wnd
40
-
+0 < P. 4001:54001(50000) ack 1 win 257
41
-
+0 > . 1:1(0) ack 54001 win 0
42
-
43
-
// Check LINUX_MIB_BEYOND_WINDOW has been incremented 3 times.
44
-
+0 `nstat | grep TcpExtBeyondWindow | grep -q " 3 "`
-33
tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt
-33
tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt
···
1
-
// SPDX-License-Identifier: GPL-2.0
2
-
3
-
--mss=1000
4
-
5
-
`./defaults.sh`
6
-
7
-
0 `nstat -n`
8
-
9
-
// Establish a connection.
10
-
+0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
11
-
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
12
-
+0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [20000], 4) = 0
13
-
+0 bind(3, ..., ...) = 0
14
-
+0 listen(3, 1) = 0
15
-
16
-
+0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
17
-
+0 > S. 0:0(0) ack 1 win 18980 <mss 1460,nop,wscale 0>
18
-
+.1 < . 1:1(0) ack 1 win 257
19
-
20
-
+0 accept(3, ..., ...) = 4
21
-
22
-
+0 < P. 1:20001(20000) ack 1 win 257
23
-
+.04 > . 1:1(0) ack 20001 win 18000
24
-
25
-
+0 setsockopt(4, SOL_SOCKET, SO_RCVBUF, [12000], 4) = 0
26
-
+0 < P. 20001:80001(60000) ack 1 win 257
27
-
+0 > . 1:1(0) ack 20001 win 18000
28
-
29
-
+0 read(4, ..., 20000) = 20000
30
-
// A too big packet is accepted if the receive queue is empty
31
-
+0 < P. 20001:80001(60000) ack 1 win 257
32
-
+0 > . 1:1(0) ack 80001 win 0
33
-