+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-
---mss=1000
-
-`./defaults.sh`
-
- 0 `nstat -n`
-
-// Establish a connection.
- +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
- +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
- +0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [10000], 4) = 0
- +0 bind(3, ..., ...) = 0
- +0 listen(3, 1) = 0
-
- +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
- +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 0>
- +.1 < . 1:1(0) ack 1 win 257
-
- +0 accept(3, ..., ...) = 4
-
- +0 < P. 1:4001(4000) ack 1 win 257
- +0 > . 1:1(0) ack 4001 win 5000
-
-// packet in sequence : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
- +0 < P. 4001:54001(50000) ack 1 win 257
- +0 > . 1:1(0) ack 4001 win 5000
-
-// ooo packet. : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
- +1 < P. 5001:55001(50000) ack 1 win 257
- +0 > . 1:1(0) ack 4001 win 5000
-
-// SKB_DROP_REASON_TCP_INVALID_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
- +0 < P. 70001:80001(10000) ack 1 win 257
- +0 > . 1:1(0) ack 4001 win 5000
-
- +0 read(4, ..., 100000) = 4000
-
-// If queue is empty, accept a packet even if its end_seq is above wup + rcv_wnd
- +0 < P. 4001:54001(50000) ack 1 win 257
- +0 > . 1:1(0) ack 54001 win 0
-
-// Check LINUX_MIB_BEYOND_WINDOW has been incremented 3 times.
-+0 `nstat | grep TcpExtBeyondWindow | grep -q " 3 "`
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-
---mss=1000
-
-`./defaults.sh`
-
- 0 `nstat -n`
-
-// Establish a connection.
- +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
- +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
- +0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [20000], 4) = 0
- +0 bind(3, ..., ...) = 0
- +0 listen(3, 1) = 0
-
- +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
- +0 > S. 0:0(0) ack 1 win 18980 <mss 1460,nop,wscale 0>
- +.1 < . 1:1(0) ack 1 win 257
-
- +0 accept(3, ..., ...) = 4
-
- +0 < P. 1:20001(20000) ack 1 win 257
- +.04 > . 1:1(0) ack 20001 win 18000
-
- +0 setsockopt(4, SOL_SOCKET, SO_RCVBUF, [12000], 4) = 0
- +0 < P. 20001:80001(60000) ack 1 win 257
- +0 > . 1:1(0) ack 20001 win 18000
-
- +0 read(4, ..., 20000) = 20000
-// A too big packet is accepted if the receive queue is empty
- +0 < P. 20001:80001(60000) ack 1 win 257
- +0 > . 1:1(0) ack 80001 win 0
-