Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#!/usr/bin/env python3
2# SPDX-License-Identifier: GPL-2.0
3
4from lib.py import ksft_run, ksft_exit
5from lib.py import ksft_eq, KsftSkipEx
6from lib.py import NetDrvEpEnv
7from lib.py import bkg, cmd, rand_port, wait_port_listen
8from lib.py import ksft_disruptive
9
10
11def require_devmem(cfg):
12 if not hasattr(cfg, "_devmem_probed"):
13 port = rand_port()
14 probe_command = f"./ncdevmem -f {cfg.ifname}"
15 cfg._devmem_supported = cmd(probe_command, fail=False, shell=True).ret == 0
16 cfg._devmem_probed = True
17
18 if not cfg._devmem_supported:
19 raise KsftSkipEx("Test requires devmem support")
20
21
22@ksft_disruptive
23def check_rx(cfg) -> None:
24 cfg.require_v6()
25 require_devmem(cfg)
26
27 port = rand_port()
28 listen_cmd = f"./ncdevmem -l -f {cfg.ifname} -s {cfg.v6} -p {port}"
29
30 with bkg(listen_cmd) as socat:
31 wait_port_listen(port)
32 cmd(f"echo -e \"hello\\nworld\"| socat -u - TCP6:[{cfg.v6}]:{port}", host=cfg.remote, shell=True)
33
34 ksft_eq(socat.stdout.strip(), "hello\nworld")
35
36
37def main() -> None:
38 with NetDrvEpEnv(__file__) as cfg:
39 ksft_run([check_rx],
40 args=(cfg, ))
41 ksft_exit()
42
43
44if __name__ == "__main__":
45 main()