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wg-quick: verify wireguard interface in more clever way

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This helps with old Debian which has ancient iproute2, as well as paving
the path toward this script supporting userspace implementations.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2017-10-01 21:42:32 +02:00
parent a566bde126
commit cbd2b0531f
1 changed files with 1 additions and 1 deletions
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src/wg-quick.bash
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@ -249,7 +249,7 @@ cmd_up() {
}
cmd_down() {
[[ -n $(ip link show dev "$INTERFACE" type wireguard 2>/dev/null) ]] || die "\`$INTERFACE' is not a WireGuard interface"
[[ " $(wg show interfaces) " == *" $INTERFACE "* ]] || die "\`$INTERFACE' is not a WireGuard interface"
execute_hook "$PRE_DOWN"
[[ $SAVE_CONFIG -eq 0 ]] || save_config
unset_dns