net/wireguard: Update rc.d script to let the user define which wg interfaces to manage

Most people will likely want to put wireguard_interfaces="wg0" in /etc/rc.conf

Reported by:	Jason A. Donenfeld <Jason@zx2c4.com>

2 files changed, 15 insertions, 7 deletions

diff --git a/net/wireguard/Makefile b/net/wireguard/Makefile
index ba5bd1b76986..b1fb92e8f6be 100644
--- a/net/wireguard/Makefile
+++ b/net/wireguard/Makefile
@@ -2,6 +2,7 @@
 
 PORTNAME=	wireguard
 PORTVERSION=	0.0.20181018
+PORTREVISION=	1
 CATEGORIES=	net
 MASTER_SITES=	https://git.zx2c4.com/WireGuard/snapshot/
 DISTNAME=	WireGuard-${PORTVERSION}
diff --git a/net/wireguard/files/wireguard.in b/net/wireguard/files/wireguard.in
index decf54f75d09..7caaa8597ab6 100644
--- a/net/wireguard/files/wireguard.in
+++ b/net/wireguard/files/wireguard.in
@@ -5,6 +5,13 @@
 # PROVIDE: wireguard
 # REQUIRE: DAEMON
 # KEYWORD: shutdown
+#
+# wireguard_enable (bool):    Set to "YES" to enable wireguard.
+#                             (default: "NO")
+#
+# wireguard_interfaces (str): List of interfaces to bring up/down
+#                             on start/stop. (eg: "wg0 wg1")
+#                             (default: "")
 
 . /etc/rc.subr
 
@@ -16,20 +23,20 @@ stop_cmd="${name}_stop"
 
 wireguard_start()
 {
-	for f in %%PREFIX%%/etc/wireguard/*.conf; do
-		%%PREFIX%%/bin/wg-quick up ${f}
+	for interface in ${wireguard_interfaces}; do
+		%%PREFIX%%/bin/wg-quick up ${interface}
 	done
 }
 
 wireguard_stop()
 {
-	%%PREFIX%%/bin/wg show interfaces | while IFS= read -r interfaces;
-	do
-		for interface in $interfaces; do
-			%%PREFIX%%/wg-quick down ${interface}
-		done
+	for interface in ${wireguard_interfaces}; do
+		%%PREFIX%%/bin/wg-quick down ${interface}
 	done
 }
 
 load_rc_config $name
+
+: ${wireguard_interfaces=""}
+
 run_rc_command "$1"