wg-quick: darwin: support being called from launchd

This causes wg-quick up to wait for the monitor to exit before it exits,
so that launchd can correctly wait on it.

Reported-by: Cameron Palmer <cameron@promon.no>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2019-06-19 13:18:34 +02:00
parent 15f2e2ef34
commit b30e74b595
3 changed files with 53 additions and 1 deletions

12
contrib/launchd/README Normal file
View file

@ -0,0 +1,12 @@
WireGuard for Launchd
=====================
The example `com.wireguard.wg0.plist` file may be used for running wg-quick(8)
as a launchd service. Note that the `PATH` variable is modified to point to
the PATH used by Homebrew or Macports, so that it uses the non-system bash(1).
Usage
-----
$ sudo cp com.wireguard.wg0.plist /Library/LaunchDaemons
$ sudo launchctl load /Library/LaunchDaemons/com.wireguard.wg0.plist

View file

@ -0,0 +1,25 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd";>
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.wireguard.wg0</string>
<key>ProgramArguments</key>
<array>
<string>/usr/local/bin/wg-quick</string>
<string>up</string>
<string>/usr/local/etc/wireguard/wg0.conf</string>
</array>
<key>OnDemand</key>
<false/>
<key>RunAtLoad</key>
<true/>
<key>TimeOut</key>
<integer>90</integer>
<key>EnvironmentVariables</key>
<dict>
<key>PATH</key>
<string>/usr/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin</string>
</dict>
</dict>
</plist>

View file

@ -81,6 +81,17 @@ parse_options() {
shopt -u nocasematch
}
detect_launchd() {
unset LAUNCHED_BY_LAUNCHD
local line
while read -r line; do
if [[ $line =~ ^\s*domain\ =\ ]]; then
LAUNCHED_BY_LAUNCHD=1
break
fi
done < <(launchctl procinfo $$ 2>/dev/null)
}
read_bool() {
case "$2" in
true) printf -v "$1" 1 ;;
@ -308,7 +319,8 @@ monitor_daemon() {
set_dns
sleep 2 && kill -ALRM $pid 2>/dev/null &
fi
done < <(route -n monitor)) & disown
done < <(route -n monitor)) &
[[ -n $LAUNCHED_BY_LAUNCHD ]] || disown
}
add_route() {
@ -463,6 +475,7 @@ if [[ $# -eq 1 && ( $1 == --help || $1 == -h || $1 == help ) ]]; then
cmd_usage
elif [[ $# -eq 2 && $1 == up ]]; then
auto_su
detect_launchd
parse_options "$2"
cmd_up
elif [[ $# -eq 2 && $1 == down ]]; then
@ -482,4 +495,6 @@ else
exit 1
fi
[[ -n $LAUNCHED_BY_LAUNCHD ]] && wait
exit 0