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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0
from os import path
from lib.py import ksft_run, ksft_exit
from lib.py import ksft_eq, KsftSkipEx
from lib.py import NetDrvEpEnv
from lib.py import bkg, cmd, rand_port, wait_port_listen
from lib.py import ksft_disruptive
def require_devmem(cfg):
if not hasattr(cfg, "_devmem_probed"):
probe_command = f"{cfg.bin_local} -f {cfg.ifname}"
cfg._devmem_supported = cmd(probe_command, fail=False, shell=True).ret == 0
cfg._devmem_probed = True
if not cfg._devmem_supported:
raise KsftSkipEx("Test requires devmem support")
@ksft_disruptive
def check_rx(cfg) -> None:
require_devmem(cfg)
port = rand_port()
socat = f"socat -u - TCP{cfg.addr_ipver}:{cfg.addr}:{port},bind={cfg.remote_addr}:{port}"
listen_cmd = f"{cfg.bin_local} -l -f {cfg.ifname} -s {cfg.addr} -p {port} -c {cfg.remote_addr} -v 7"
with bkg(listen_cmd, exit_wait=True) as ncdevmem:
wait_port_listen(port)
cmd(f"yes $(echo -e \x01\x02\x03\x04\x05\x06) | \
head -c 1K | {socat}", host=cfg.remote, shell=True)
ksft_eq(ncdevmem.ret, 0)
@ksft_disruptive
def check_tx(cfg) -> None:
require_devmem(cfg)
port = rand_port()
listen_cmd = f"socat -U - TCP{cfg.addr_ipver}-LISTEN:{port}"
with bkg(listen_cmd) as socat:
wait_port_listen(port)
cmd(f"echo -e \"hello\\nworld\"| {cfg.bin_remote} -f {cfg.ifname} -s {cfg.addr} -p {port}", host=cfg.remote, shell=True)
ksft_eq(socat.stdout.strip(), "hello\nworld")
@ksft_disruptive
def check_tx_chunks(cfg) -> None:
cfg.require_ipver("6")
require_devmem(cfg)
port = rand_port()
listen_cmd = f"socat -U - TCP6-LISTEN:{port}"
with bkg(listen_cmd, exit_wait=True) as socat:
wait_port_listen(port)
cmd(f"echo -e \"hello\\nworld\"| {cfg.bin_remote} -f {cfg.ifname} -s {cfg.addr_v['6']} -p {port} -z 3", host=cfg.remote, shell=True)
ksft_eq(socat.stdout.strip(), "hello\nworld")
def main() -> None:
with NetDrvEpEnv(__file__) as cfg:
cfg.bin_local = path.abspath(path.dirname(__file__) + "/ncdevmem")
cfg.bin_remote = cfg.remote.deploy(cfg.bin_local)
ksft_run([check_rx, check_tx, check_tx_chunks],
args=(cfg, ))
ksft_exit()
if __name__ == "__main__":
main()
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