| // SPDX-License-Identifier: GPL-2.0 |
| |
| --mss=1000 |
| |
| `./defaults.sh |
| sysctl -q net.ipv4.tcp_rmem="4096 131072 $((32*1024*1024))"` |
| |
| // Test that a not-yet-accepted socket does not change |
| // its initial sk_rcvbuf (tcp_rmem[1]) when receiving ooo packets. |
| |
| +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 < . 2001:41001(39000) ack 1 win 257 |
| +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:41001> |
| +0 < . 41001:101001(60000) ack 1 win 257 |
| +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:101001> |
| +0 < . 1:1001(1000) ack 1 win 257 |
| +0 > . 1:1(0) ack 1001 <nop,nop,sack 2001:101001> |
| +0 < . 1001:2001(1000) ack 1 win 257 |
| +0 > . 1:1(0) ack 101001 |
| |
| +0 accept(3, ..., ...) = 4 |
| |
| +0 %{ assert SK_MEMINFO_RCVBUF == 131072, SK_MEMINFO_RCVBUF }% |
| |
| +0 close(4) = 0 |
| +0 close(3) = 0 |
| |
| // Test that ooo packets for accepted sockets do increase sk_rcvbuf |
| +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 < . 2001:41001(39000) ack 1 win 257 |
| +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:41001> |
| +0 < . 41001:101001(60000) ack 1 win 257 |
| +0 > . 1:1(0) ack 1 <nop,nop,sack 2001:101001> |
| |
| +0 %{ assert SK_MEMINFO_RCVBUF > 131072, SK_MEMINFO_RCVBUF }% |
| |
