From: Jason A. Donenfeld <Jason@zx2c4.com>
Date: Sat, 5 May 2018 01:54:55 +0000 (+0200)
Subject: wg-quick: preliminary support for go implementation
X-Git-Tag: v1.0.20191226~135
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b64881c7ac934f3ef8e9c74b815357fbe981ccb;p=thirdparty%2Fwireguard-tools.git

wg-quick: preliminary support for go implementation

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---

diff --git a/src/wg-quick.bash b/src/wg-quick.bash
index f8c1ce7..cd66b4d 100755
--- a/src/wg-quick.bash
+++ b/src/wg-quick.bash
@@ -83,7 +83,13 @@ auto_su() {
 }
 
 add_if() {
-	cmd ip link add "$INTERFACE" type wireguard
+	local ret
+	if ! cmd ip link add "$INTERFACE" type wireguard; then
+		ret=$?
+		[[ -e /sys/module/wireguard ]] || ! command -v wireguard-go >/dev/null && return $ret
+		echo "[!] Missing WireGuard kernel module. Falling back to slow userspace implementation."
+		cmd wireguard-go "$INTERFACE"
+	fi
 }
 
 del_if() {