[systemd-devel] Problem: Renaming the USB network interface makes SYSTEMD_WANTS not working

[Charles]

Hello,

Adding NAME="mywifi" to an udev rule causes the SYSTEMD_WANTS service to not be executed. Removing NAME="mywifi" and the service is executed. How come?
​

> /etc/udev/rules.d/10-network.rules
> SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="...", TAG+="systemd", ENV{SYSTEMD_WANTS}="test.service"

/etc/systemd/system/test.service

> [Service]
> Type=simple
> ExecStart=/bin/echo %n started!

First try, it works:
I type:

> # journalctl -f -u test.service

I plug the USB Wi-Fi device and it prints:

> "test.service started!"

Note that ip link show returns wlan1.

Now I add NAME="mywifi" which gives:

> /etc/udev/rules.d/10-network.rules
> SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="...", NAME="mywifi", TAG+="systemd", ENV{SYSTEMD_WANTS}="test.service"

I plug the USB Wi-Fi device and it prints nothing.
Note that ip link show returns mywifi.
I remove NAME="mywifi" and it prints "test.service started!" again.

I really do not understand. When using RUN, it works all the time. SYSTEMD_WANTS seems to work only when the interface is not renamed. I tried also to rename it with a .link file, it got renamed but the service is still not triggered.

Hope you can help me out.
Thanks in advance for your time,
Charles

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