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John Siu's questions

Martin Hope
John Siu
Asked: 2024-12-05 23:24:16 +0800 CST
  • 5

环境

这是 vps Ubuntu 服务器 22.04.5。Wireguard 使用 tuntap 而不是内核模块。

脚本

/etc/wireguard/gw0.sh如果从命令行运行，可以正确启动 wireguard：

# cleanup
echo "$(date) - cleanup"
/usr/sbin/ip link del gw0 2>&1
/usr/sbin/iptables -t nat -D POSTROUTING -s 10.0.0.0/24 -o venet0 -j MASQUERADE 2>&1

# setup
echo "$(date) - setup"
#/usr/sbin/ip tuntap add dev gw0 mode tun
/usr/bin/wireguard gw0 2>&1
/usr/sbin/ip a add 10.0.0.1/24 dev gw0
/usr/bin/wg set gw0 listen-port 12345
/usr/bin/wg set gw0 private-key /etc/wireguard/gw0.key
# wg0
/usr/bin/wg set gw0 peer <wg0 key> allowed-ips 10.0.0.2/32
# wg1
/usr/bin/wg set gw0 peer <wg1 key> allowed-ips 10.0.0.3/32

# start
echo "$(date) - start"
/usr/sbin/ip link set gw0 up 2>&1
/usr/sbin/iptables -t nat -A POSTROUTING -s 10.0.0.0/24 -o venet0 -j MASQUERADE 2>&1

# end
echo "$(date) - end"

exit 0

输出：

# /etc/wireguard/gw0.sh
Thu Dec  5 10:03:32 EST 2024 - cleanup
Cannot find device "gw0"
Thu Dec  5 10:03:32 EST 2024 - setup
┌──────────────────────────────────────────────────────┐
│                                                      │
│   Running wireguard-go is not required because this  │
│   kernel has first class support for WireGuard. For  │
│   information on installing the kernel module,       │
│   please visit:                                      │
│         https://www.wireguard.com/install/           │
│                                                      │
└──────────────────────────────────────────────────────┘
Thu Dec  5 10:03:32 EST 2024 - start
Thu Dec  5 10:03:33 EST 2024 - end

系统服务

/etc/systemd/system/gw0.service：

[Unit]
Description = Start Wireguard gw0
After = network-online.target
Wants = network-online.target
[Service]
Type = oneshot
ExecStart = /usr/bin/bash -c "/etc/wireguard/gw0.sh >> /tmp/gw0.log"

[Install]
WantedBy=multi-user.target

启动服务总是会出现超时错误，并且没有wireguard进程：

# systemctl start gw0.service
Job for gw0.service failed because a timeout was exceeded.
See "systemctl status gw0.service" and "journalctl -xeu gw0.service" for details.

# systemctl status gw0.service
× gw0.service - Start Wireguard gw0
     Loaded: loaded (/etc/systemd/system/gw0.service; disabled; vendor preset: enabled)
     Active: failed (Result: timeout) since Thu 2024-12-05 10:12:07 EST; 34s ago
    Process: 95515 ExecStart=/usr/bin/bash -c /etc/wireguard/gw0.sh >> /tmp/gw0.log (code=exited, status=0/SUCCESS)
   Main PID: 95515 (code=exited, status=0/SUCCESS)

Dec 05 10:10:37 mybox systemd[1]: Starting Start Wireguard gw0...
Dec 05 10:12:07 mybox systemd[1]: gw0.service: State 'stop-sigterm' timed out. Killing.
Dec 05 10:12:07 mybox systemd[1]: gw0.service: Failed with result 'timeout'.
Dec 05 10:12:07 mybox systemd[1]: Failed to start Start Wireguard gw0.

# journalctl -xeu gw0.service
Dec 05 10:10:37 mybox systemd[1]: Starting Start Wireguard gw0...
░░ Subject: A start job for unit gw0.service has begun execution
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit gw0.service has begun execution.
░░
░░ The job identifier is 2611.
Dec 05 10:12:07 mybox systemd[1]: gw0.service: State 'stop-sigterm' timed out. Killing.
Dec 05 10:12:07 mybox systemd[1]: gw0.service: Failed with result 'timeout'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit gw0.service has entered the 'failed' state with result 'timeout'.
Dec 05 10:12:07 mybox systemd[1]: Failed to start Start Wireguard gw0.
░░ Subject: A start job for unit gw0.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit gw0.service has finished with a failure.
░░
░░ The job identifier is 2611 and the job result is failed.

但是，/tmp/gw0.log显示脚本已完成：

Thu Dec  5 10:10:37 EST 2024 - cleanup
Thu Dec  5 10:10:37 EST 2024 - setup
┌──────────────────────────────────────────────────────┐
│                                                      │
│   Running wireguard-go is not required because this  │
│   kernel has first class support for WireGuard. For  │
│   information on installing the kernel module,       │
│   please visit:                                      │
│         https://www.wireguard.com/install/           │
│                                                      │
└──────────────────────────────────────────────────────┘
Thu Dec  5 10:10:37 EST 2024 - start
Thu Dec  5 10:10:37 EST 2024 - end

问题

有人知道该如何gw0.service工作吗？

systemd