[openwrt/openwrt] wireguard-tools: add tunlink option for hostroute

[LEDE Commits]

dedeckeh pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/47b2ee2d9a9a1790f9bf8a528640c333af39e4ba

commit 47b2ee2d9a9a1790f9bf8a528640c333af39e4ba
Author: Aaron Goodman <aaronjg at stanford.edu>
AuthorDate: Wed Aug 26 21:27:40 2020 -0400

    wireguard-tools: add tunlink option for hostroute
    
    In a multi-wan setup, netifd may need guidance on which wan device to
    use to create the route to the remote peer.
    
    This commit adds a 'tunlink' option similar to other tunneling interfaces
    such as 6in4, 6rd, gre, etc.
    
    Signed-off-by: Aaron Goodman <aaronjg at stanford.edu>
---
 package/network/utils/wireguard-tools/Makefile           | 2 +-
 package/network/utils/wireguard-tools/files/wireguard.sh | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/package/network/utils/wireguard-tools/Makefile b/package/network/utils/wireguard-tools/Makefile
index 2137a8b4a1..fb7c0b6ee6 100644
--- a/package/network/utils/wireguard-tools/Makefile
+++ b/package/network/utils/wireguard-tools/Makefile
@@ -12,7 +12,7 @@ include $(INCLUDE_DIR)/kernel.mk
 PKG_NAME:=wireguard-tools
 
 PKG_VERSION:=1.0.20200513
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=wireguard-tools-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://git.zx2c4.com/wireguard-tools/snapshot/
diff --git a/package/network/utils/wireguard-tools/files/wireguard.sh b/package/network/utils/wireguard-tools/files/wireguard.sh
index ccac34e45f..63261aea71 100644
--- a/package/network/utils/wireguard-tools/files/wireguard.sh
+++ b/package/network/utils/wireguard-tools/files/wireguard.sh
@@ -112,6 +112,7 @@ proto_wireguard_setup() {
 	config_get fwmark "${config}" "fwmark"
 	config_get ip6prefix "${config}" "ip6prefix"
 	config_get nohostroute "${config}" "nohostroute"
+	config_get tunlink "${config}" "tunlink"
 
 	ip link del dev "${config}" 2>/dev/null
 	ip link add dev "${config}" type wireguard
@@ -173,7 +174,7 @@ proto_wireguard_setup() {
 		sed -E 's/\[?([0-9.:a-f]+)\]?:([0-9]+)/\1 \2/' | \
 		while IFS=$'\t ' read -r key address port; do
 			[ -n "${port}" ] || continue
-			proto_add_host_dependency "${config}" "${address}"
+			proto_add_host_dependency "${config}" "${address}" "${tunlink}"
 		done
 	fi