wireguard: bump to release 0.0.20171005 for 17.01

WireGuard is well documented for being an experimental project, not
currently ready to be stabilized. As such, it's important for packagers
to always keep the project up to date in all contexts.

However, it is common for some projects, such as LEDE/OpenWrt to have
stable branches, which don't expect a lot of churn or modification.

The WireGuard that happened to ship with 17.01 is broken and crufty and
shouldn't be used at all. It's highly unlikely that there's anybody out
there even using it; it won't work with anything else.

So, this commit updates the 17.01 package to the latest upstream
version. Because the 17.01 stable branch can't be updated all the time,
it's important that this bump here in this commit is a stable one.

I believe 0.0.20171005 to be a fairly stable snapshot, which should be
suitable for the 17.01 branch. As stated earlier, the 0.0.20170115
currently in this branch is highly problematic. 0.0.20171005 offers
extremely important changes.

I'll continue to send package bumps for 17.01, but only for snapshot
releases that I think fix an important bug or provide a noted increase
in stability, or have similar goals to this commit.

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

net/wireguard/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2016 Jason A. Donenfeld <Jason@zx2c4.com>
+# Copyright (C) 2016-2017 Jason A. Donenfeld <Jason@zx2c4.com>
 # Copyright (C) 2016 Baptiste Jonglez <openwrt@bitsofnetworks.org>
 # Copyright (C) 2016-2017 Dan Luedtke <mail@danrl.com>
 #
@@ -11,12 +11,12 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=wireguard
 
-PKG_VERSION:=0.0.20170115
+PKG_VERSION:=0.0.20171005
 PKG_RELEASE:=1
 
 PKG_SOURCE:=WireGuard-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=https://git.zx2c4.com/WireGuard/snapshot/
-PKG_MD5SUM:=7e5f9f4699a2d4ace90d0df5d81bf0f67205ee08c45b95e0acc379bedef5ffe8
+PKG_HASH:=832a3b7cbb510f6986fd0c3a6b2d86bc75fc9f23b6754d8f46bc58ea8e02d608
 
 PKG_LICENSE:=GPL-2.0
 PKG_LICENSE_FILES:=COPYING
@@ -33,9 +33,12 @@ include $(INCLUDE_DIR)/package.mk
 define Package/wireguard/Default
   SECTION:=net
   CATEGORY:=Network
-  URL:=https://www.wireguard.io
+  SUBMENU:=VPN
+  URL:=https://www.wireguard.com
   MAINTAINER:=Baptiste Jonglez <openwrt@bitsofnetworks.org>, \
-              Dan Luedtke <mail@danrl.com>
+              Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>, \
+              Dan Luedtke <mail@danrl.com>, \
+              Jason A. Donenfeld <Jason@zx2c4.com>
 endef
 
 define Package/wireguard/Default/description
@@ -44,8 +47,7 @@ define Package/wireguard/Default/description
   more useful than IPSec, while avoiding the massive headache. It intends to
   be considerably more performant than OpenVPN.  WireGuard is designed as a
   general purpose VPN for running on embedded interfaces and super computers
-  alike, fit for many different circumstances.
+  alike, fit for many different circumstances. It uses UDP.
-  It runs over UDP.
 endef
 
 define Package/wireguard
@@ -65,6 +67,10 @@ define Build/Compile
 	$(call Build/Compile/Default)
 endef
 
+define Package/wireguard/install
+  true
+endef
+
 define Package/wireguard/description
   $(call Package/wireguard/Default/description)
 endef
@@ -94,7 +100,7 @@ define KernelPackage/wireguard
   CATEGORY:=Kernel modules
   SUBMENU:=Network Support
   TITLE:=Wireguard kernel module
-  DEPENDS:=+IPV6:kmod-udptunnel6 +kmod-udptunnel4 +kmod-ipt-hashlimit
+  DEPENDS:=+IPV6:kmod-udptunnel6 +kmod-udptunnel4
   FILES:= $(PKG_BUILD_DIR)/src/wireguard.$(LINUX_KMOD_SUFFIX)
   AUTOLOAD:=$(call AutoProbe,wireguard)
 endef

net/wireguard/files/wireguard.sh

@@ -21,7 +21,7 @@ proto_wireguard_init_config() {
   proto_config_add_string "private_key"
   proto_config_add_int    "listen_port"
   proto_config_add_int    "mtu"
-  proto_config_add_string "preshared_key"
+  proto_config_add_string "fwmark"
   available=1
   no_proto_task=1
 }
@@ -31,6 +31,7 @@ proto_wireguard_setup_peer() {
   local peer_config="$1"
 
   local public_key
+  local preshared_key
   local allowed_ips
   local route_allowed_ips
   local endpoint_host
@@ -38,6 +39,7 @@ proto_wireguard_setup_peer() {
   local persistent_keepalive
 
   config_get      public_key           "${peer_config}" "public_key"
+  config_get      preshared_key        "${peer_config}" "preshared_key"
   config_get      allowed_ips          "${peer_config}" "allowed_ips"
   config_get_bool route_allowed_ips    "${peer_config}" "route_allowed_ips" 0
   config_get      endpoint_host        "${peer_config}" "endpoint_host"
@@ -47,6 +49,9 @@ proto_wireguard_setup_peer() {
   # peer configuration
   echo "[Peer]"                                         >> "${wg_cfg}"
   echo "PublicKey=${public_key}"                        >> "${wg_cfg}"
+  if [ "${preshared_key}" ]; then
+    echo "PresharedKey=${preshared_key}"                >> "${wg_cfg}"
+  fi
   for allowed_ip in $allowed_ips; do
     echo "AllowedIPs=${allowed_ip}"                     >> "${wg_cfg}"
   done
@@ -77,9 +82,15 @@ proto_wireguard_setup_peer() {
         *:*/*)
           proto_add_ipv6_route "${allowed_ip%%/*}" "${allowed_ip##*/}"
         ;;
-        */*)
+        *.*/*)
           proto_add_ipv4_route "${allowed_ip%%/*}" "${allowed_ip##*/}"
         ;;
+        *:*)
+          proto_add_ipv6_route "${allowed_ip%%/*}" "128"
+        ;;
+        *.*)
+          proto_add_ipv4_route "${allowed_ip%%/*}" "32"
+        ;;
       esac
     done
   fi
@@ -94,7 +105,6 @@ proto_wireguard_setup() {
   local private_key
   local listen_port
   local mtu
-  local preshared_key
 
   # load configuration
   config_load network
@@ -102,7 +112,7 @@ proto_wireguard_setup() {
   config_get listen_port   "${config}" "listen_port"
   config_get addresses     "${config}" "addresses"
   config_get mtu           "${config}" "mtu"
-  config_get preshared_key "${config}" "preshared_key"
+  config_get fwmark        "${config}" "fwmark"
 
   # create interface
   ip link del dev "${config}" 2>/dev/null
@@ -122,8 +132,8 @@ proto_wireguard_setup() {
   if [ "${listen_port}" ]; then
     echo "ListenPort=${listen_port}"     >> "${wg_cfg}"
   fi
-  if [ "${preshared_key}" ]; then
+  if [ "${fwmark}" ]; then
-    echo "PresharedKey=${preshared_key}" >> "${wg_cfg}"
+    echo "FwMark=${fwmark}" >> "${wg_cfg}"
   fi
   config_foreach proto_wireguard_setup_peer "wireguard_${config}"
 
@@ -164,7 +174,6 @@ 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
-    echo "adding host depedency for ${address} at ${config}"
     proto_add_host_dependency "${config}" "${address}"
   done