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wg_client
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#!/bin/sh
# shellcheck disable=SC2039,SC2155,SC2124,SC2046
VERSION="v4.17.9"
#============================================================================================ © 2021-2022 Martineau v4.17.9
#
# Maintainer: Martineau
# Last Updated Date: 01-Jul-2022
#
# Description:
#
# Acknowledgement:
#
# Contributors: odkrys,ZebMcKayhan,Torson,The Chief,archiel
Parse() {
#
# Parse "Word1,Word2|Word3" ",|" VAR1 VAR2 REST
# (Effectivley executes VAR1="Word1";VAR2="Word2";REST="Word3")
local TEXT IFS
TEXT="$1"
IFS="$2"
shift 2
read -r -- "$@" <<EOF
$TEXT
EOF
}
# shellcheck disable=SC2034,SC2120
ANSIColours() {
local ACTION=$1
cRESET=
aBOLD=;aDIM=;aUNDER=;aBLINK=;aREVERSE=
aBOLDr=;aDIMr=;aUNDERr=;aBLINKr=;aREVERSEr=
cBLA=;cRED=;cGRE=;cYEL=;cBLU=;cMAG=;cCYA=;cGRA=;cFGRESET=
cBGRA=;cBRED=;cBGRE=;cBYEL=;cBBLU=;cBMAG=;cBCYA=;cBWHT=
cWRED=;cWGRE=;cWYEL=;cWBLU=;cWMAG=;cWCYA=;cWGRA=
cYBLU=
cRED_=;cGRE_=
if [ "$ACTION" != "disable" ];then
cRESET="\e[0m";
aBOLD="\e[1m";aDIM="\e[2m";aUNDER="\e[4m";aBLINK="\e[5m";aREVERSE="\e[7m"
aBOLDr="\e[21m";aDIMr="\e[22m";aUNDERr="\e[24m";aBLINKr="\e[25m";aREVERSEr="\e[27m"
cBLA="\e[30m";cRED="\e[31m";cGRE="\e[32m";cYEL="\e[33m";cBLU="\e[34m";cMAG="\e[35m";cCYA="\e[36m";cGRA="\e[37m";cFGRESET="\e[39m"
cBGRA="\e[90m";cBRED="\e[91m";cBGRE="\e[92m";cBYEL="\e[93m";cBBLU="\e[94m";cBMAG="\e[95m";cBCYA="\e[96m";cBWHT="\e[97m"
aBOLD="\e[1m";aDIM="\e[2m";aUNDER="\e[4m";aBLINK="\e[5m";aREVERSE="\e[7m"
cWRED="\e[41m";cWGRE="\e[42m";cWYEL="\e[43m";cWBLU="\e[44m";cWMAG="\e[45m";cWCYA="\e[46m";cWGRA="\e[47m"
cYBLU="\e[93;48;5;21m"
cRED_="\e[41m";cGRE_="\e[42m"
fi
xHOME="\e[H";xERASE="\e[2J";xERASEDOWN="\e[J";xERASEUP="\e[1J";xCSRPOS="\e[s";xPOSCSR="\e[u";xERASEEOL="\e[K";xQUERYCSRPOS="\e[6n"
xGoto="\e[Line;Columnf"
}
Is_HND() {
# Use the following at the command line otherwise 'return X' makes the SSH session terminate!
#[ -n "$(/bin/uname -m | grep "aarch64")" ] && echo Y || echo N
[ -n "$(/bin/uname -m | grep "aarch64")" ] && { echo Y; return 0; } || { echo N; return 1; } # v4.14.6
}
Is_AX() {
# Kernel is '4.1.52+' (i.e. isn't '2.6.36*') and it isn't HND
# Use the following at the command line otherwise 'return X' makes the SSH session terminate!
# [ -n "(/bin/uname -r | grep "^4")" ] && [ -z "$(/bin/uname -m | grep "aarch64")" ] && echo Y || echo N
[ -n "$(/bin/uname -r | grep "^4")" ] && [ -z "$(/bin/uname -m | grep "aarch64")" ] && { echo Y; return 0; } || { echo N; return 1; } # v4.14.6
}
Is_IPv4 () {
grep -oE '^([0-9]{1,3}\.){3}[0-9]{1,3}$' # IPv4 format
}
Is_IPv4_CIDR () {
grep -oE '^([0-9]{1,3}\.){3}[0-9]{1,3}/(3[012]|[12]?[0-9])$' # IPv4 CIDR range notation
}
Is_IPv6() {
# Note this matches compression anywhere in the address, though it won't match the loopback address ::1
grep -oE '([A-Fa-f0-9]{1,4}::?){1,7}[A-Fa-f0-9]{1,4}' # IPv6 format -very crude
}
Get_WAN_IF_Name() {
# echo $([ -n "$(nvram get wan0_pppoe_ifname)" ] && echo $(nvram get wan0_pppoe_ifname) || echo $(nvram get wan0_ifname))
# nvram get wan0_gw_ifname
# nvram get wan0_proto
local IF_NAME=$(ip route | awk '/^default/{print $NF}') # Should ALWAYS be 100% reliable ?
local IF_NAME=$(nvram get wan0_ifname) # ...but use the NVRAM e.g. DHCP/Static ?
# Usually this is probably valid for both eth0/ppp0e ?
if [ "$(nvram get wan0_gw_ifname)" != "$IF_NAME" ];then
local IF_NAME=$(nvram get wan0_gw_ifname)
fi
if [ ! -z "$(nvram get wan0_pppoe_ifname)" ];then
local IF_NAME="$(nvram get wan0_pppoe_ifname)" # PPPoE
fi
echo $IF_NAME
}
Firewall_delete() {
iptables -t mangle -D FORWARD -o $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'" 2>/dev/null
iptables -t mangle -D FORWARD -i $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'" 2>/dev/null
iptables -t mangle -D FORWARD -o $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'" 2>/dev/null
iptables -t mangle -D PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'" 2>/dev/null
ip6tables -t filter -D FORWARD -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'client'" 2>/dev/null # v4.14.6 @ZebMcKayhan
#if [ $FIRMWARE -ge 38601 ];then # Guest #1 SSID VLANs SNB @ZebMcKayhan
iptables -t filter -D FORWARD -i br1 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN" 2>/dev/null
iptables -t filter -D FORWARD -i br2 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN" 2>/dev/null
iptables -t nat -D POSTROUTING -s $(nvram get lan_ipaddr)/16 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'" 2>/dev/null
iptables -t nat -D PREROUTING -s $(nvram get lan_ipaddr)/16 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'" 2>/dev/null
#else
iptables -t nat -D POSTROUTING -s $(nvram get lan_ipaddr)/24 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'" 2>/dev/null
#fi
iptables -t nat -D PREROUTING -p tcp -m tcp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'" 2>/dev/null
iptables -t nat -D PREROUTING -p udp -m udp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'" 2>/dev/null
iptables -t nat -F WGDNS${VPN_NUM} 2>/dev/null # v4.14.8 @ZebMcKayhan
iptables -t nat -X WGDNS${VPN_NUM} 2>/dev/null # v4.14.8 @ZebMcKayhan
if [ "$USE_IPV6" == "Y" ];then # v4.08
ip6tables -t mangle -D FORWARD -o $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'" 2>/dev/null
ip6tables -t mangle -D FORWARD -i $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'" 2>/dev/null
ip6tables -t mangle -D FORWARD -o $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'" 2>/dev/null
ip6tables -D FORWARD -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "LAN to WireGuard 'client'" 2>/dev/null # v4.14.10
ip6tables -t mangle -D PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'" 2>/dev/null
ip6tables -t filter -D FORWARD -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "LAN to WireGuard 'client'" 2>/dev/null # v4.14.6 @ZebMcKayhan
#if [ $FIRMWARE -ge 38601 ];then # Guest #1 SSID VLANs SNB @ZebMcKayhan
ip6tables -t filter -D FORWARD -i br1 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN" 2>/dev/null
ip6tables -t filter -D FORWARD -i br2 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN" 2>/dev/null
[ -n "$(nvram get ipv6_rtr_addr)" ] && ip6tables -t nat -D PREROUTING -s $(nvram get ipv6_rtr_addr)/64 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'" 2>/dev/null
#else
[ -n "$(nvram get ipv6_rtr_addr)" ] && ip6tables -t nat -D POSTROUTING -s $(nvram get ipv6_rtr_addr)/64 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'" 2>/dev/null
#fi
[ -z "$(nvram get ipv6_rtr_addr)" ] && ip6tables -t nat -D POSTROUTING -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'" 2>/dev/null # v4.19.9
ip6tables -t nat -D PREROUTING -p tcp -m tcp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'" 2>/dev/null
ip6tables -t nat -D PREROUTING -p udp -m udp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'" 2>/dev/null
ip6tables -t nat -F WGDNS${VPN_NUM} 2>/dev/null # v4.14.8 @ZebMcKayhan
ip6tables -t nat -X WGDNS${VPN_NUM} 2>/dev/null # v4.14.8 @ZebMcKayhan
fi
}
# Adapted from RMerlin's 'vpnrouting.sh'
create_client_list(){
local PEERDNS_LIST=${PEER_DNS_LIST//,/ } # v4.17.8 v4.14.8 @ZebMcKayhan
# v4.09 Use new 'policy' table layout
[ $(sqlite3 $SQL_DATABASE "SELECT COUNT(peer) FROM policy WHERE peer='$WG_INTERFACE';") -eq 0 ] && { logger -t "wg_manager-${MODE}${VPN_NAME}" "Warning: No Selective Routing rules found";return 1; }
sqlite3 $SQL_DATABASE "SELECT iface,srcip,dstip FROM policy WHERE peer='$WG_INTERFACE' ORDER BY iface DESC;" | while read RULE
do
[ -z "$RULE" ] && continue
local TARGET_ROUTE=$(echo $RULE | awk -F '|' '{print $1}')
if [ "$TARGET_ROUTE" = "WAN" ]
then
local TARGET_LOOKUP="main"
#WAN_PRIO=$((WAN_PRIO+1))
local RULE_PRIO=$WAN_PRIO
local TARGET_NAME="WAN"
else
local TARGET_LOOKUP=$VPN_TBL
#VPN_PRIO=$((VPN_PRIO+1))
local RULE_PRIO=$VPN_PRIO
local TARGET_NAME="VPN 'client' Peer $VPN_UNIT"
fi
local VPN_IP=$(echo $RULE | awk -F '|' '{print $2}')
if [ "$VPN_IP" != "Any" ] && [ -n "$VPN_IP" ] # v4.09
then
local SRCC="from"
local SRCA="$VPN_IP"
else
local SRCC=""
local SRCA=""
fi
local DST_IP=$(echo $RULE | awk -F '|' '{print $3}')
if [ "$DST_IP" != "Any" ] && [ -n "$DST_IP" ] # v4.09
then
local DSTC="to"
local DSTA="$DST_IP"
else
local DSTC=""
local DSTA=""
fi
if [ -n "$SRCC" ] || [ -n "$DSTC" ]
then
if [ -z "$(echo "$SRCA" | grep ":")" ] && [ -z "$(echo "$DSTA" | grep ":")" ];then # v4.13 IPv4 ONLY
ip rule add $SRCC $SRCA $DSTC $DSTA table $TARGET_LOOKUP priority $RULE_PRIO
fi
if [ "$USE_IPV6" == "Y" ];then # v 4.13 v4.08
if [ -n "$(echo "$SRCA" | grep ":")" ] || [ -n "$(echo "$DSTA" | grep ":")" ];then
ip -6 rule add $SRCC $SRCA $DSTC $DSTA table $TARGET_LOOKUP priority $RULE_PRIO # v4.13 IPv6 ONLY
fi
fi
echo -en $cBCYA
[ "$DSTC" == "to" ] && DSTC="to "
logger -t "wg_manager-${MODE}${VPN_NAME}" "Adding WireGuard 'client' Peer route ${SRCA}${DSTC}$DSTA through $TARGET_NAME"
echo -en $cRESET
if [ -n "$PEERDNS_LIST" ] && [ "$TARGET_LOOKUP" != "main" ] && [ "$VPN_IP" != "Any" ];then # v4.17.9 @ZebMcKayhan
for PEER_DNS in $PEERDNS_LIST # v4.14.8 @ZebMcKayhan
do
if [ -z "$(echo "$PEER_DNS" | grep -F ":")" ] && [ -z "$(echo "$VPN_IP" | grep -F ":")" ];then # v4.14.8 v4.13
cmd iptables -t nat -A WGDNS$VPN_NUM -s ${VPN_IP} -j DNAT --to-destination $PEER_DNS -m comment --comment "WireGuard 'client${VPN_NUM} DNS'" # v4.05
fi
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$PEER_DNS" | grep -F ":")" ] && [ -n "$(echo "$VPN_IP" | grep -F ":")" ];then # v4.14.8 v4.13
# For the following to work @ZebMcKayhan uses 'opkg install xtables-addons_legacy'
#
cmd ip6tables -t nat -A WGDNS$VPN_NUM -s ${VPN_IP} -j DNAT --to-destination $PEER_DNS -m comment --comment "WireGuard 'client${VPN_NUM} DNS'"
fi
done
fi
fi
done
}
purge_client_list(){
IP_LIST=$(ip rule show | cut -d ":" -f 1)
for PRIO in $IP_LIST
do
if [ "$PRIO" -ge "$START_PRIO" ] && [ "$PRIO" -le "$END_PRIO" ]
then
cmd ip rule del prio $PRIO
[ "$USE_IPV6" == "Y" ] && cmd ip -6 rule del prio $PRIO # v4.14.8 @ZebMcKayhan
#echo -en $cBCYA"\t"
logger -t "wg_manager-${MODE}${VPN_NAME}" "Removing WireGuard® 'client' Peer rule $PRIO from routing policy"
echo -en $cRESET
fi
done
}
Manage_Passthru(){
local SERVER_DEVICEPEERS=$(sqlite3 $SQL_DATABASE "SELECT server,ip_subnet FROM passthru where client='$WG_INTERFACE';" | tr '\n' ' ')
local PASSTHRU_SERVER=
local PASSTHRU=
local ACTION="add"
[ -n "$1" ] && ACTION=$1 # "del" or "add"
if [ -n "$SERVER_DEVICEPEERS" ];then
unset DONE;while [ -z ${DONE+x} ];do ip rule del prio 998${VPN_NUM} 2>/dev/null;[ $? -gt 0 ] && DONE=1;done # v4.17.1 v4.16.19
unset DONE;while [ -z ${DONE+x} ];do ip -6 rule del prio 998${VPN_NUM} 2>/dev/null;[ $? -gt 0 ] && DONE=1;done # v4.17.1 v4.16.19
for ITEM in $SERVER_DEVICEPEERS # wg21|all or wg22|SGS8 or wg21|10.0.0.0/27
do
Parse "$ITEM" "|" PASSTHRU_SERVER PASSTHRU
if [ "$PASSTHRU" == "all" ];then
# Use 'server' peer clients subnet
local IP_ADDR=$(sqlite3 $SQL_DATABASE "SELECT subnet FROM servers where peer='$PASSTHRU_SERVER';")
local TYPE="Subnet"
else
local IP_ADDR=$(sqlite3 $SQL_DATABASE "SELECT ip FROM devices where name='$PASSTHRU';" 2> /dev/null)
[ -z "$IP_ADDR" ] && local IP_ADDR=$PASSTHRU
local TYPE="I/P"
local DESC=$(sqlite3 $SQL_DATABASE "SELECT tag FROM clients where peer='$PASSTHRU';") # v4.16.16
if [ -z "$DESC" ] && [ -f ${CONFIG_DIR}${PASSTHRU}.conf ];then # v4.16.17 @archiel
local DESC=$(grep -FB1 "[Interface]" ${CONFIG_DIR}${PASSTHRU}.conf | grep -vF "[Interface]") # v4.16.16
local DESC=$(printf "%s" "$DESC" | sed 's/^[ \t]*//;s/[ \t]*$//') # v4.16.16
fi
[ -z "$DESC" ] && local DESC="# $PASSTHRU" # v4.16.16
fi
if [ -n "$IP_ADDR" ];then
for PASSTHRU_IP in $(echo "$IP_ADDR" | tr ',' ' ')
do
if [ "$PASSTHRU_ONLY" != "Y" ];then # Called from wg_manager ?
iptables -t nat -D POSTROUTING -s $IP_ADDR -o wg1$VPN_NUM -j MASQUERADE 2> /dev/null # v4.16.14
ip6tables -t nat -D POSTROUTING -s $IP_ADDR -o wg1$VPN_NUM -j MASQUERADE 2> /dev/null # v4.16.14
fi
done
if [ "$PASSTHRU_ONLY" == "Y" ];then
logger -t "wg_manager-${MODE}${VPN_NAME}" "'server' peer ($PASSTHRU_SERVER) RPDB" "'pass-thru': $WG_INTERFACE rules removed"
local FLUSH="Y" # Force
fi
if [ "$ACTION" != "del" ];then
for PASSTHRU_IP in $(echo "$IP_ADDR" | tr ',' ' ') # v4.16.14
do
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$PASSTHRU_IP" | grep -F ":")" ];then # v4.16.14
cmd ip -6 rule $ACTION from $PASSTHRU_IP table 12$VPN_NUM prio 998$VPN_NUM # v4.16.15
cmd ip6tables -t nat -I POSTROUTING -s $PASSTHRU_IP -o wg1$VPN_NUM -j MASQUERADE # v4.16.15
DASH6="-6 " # v4.16.15 v4.16.14
else
if [ -n "$(echo "$PASSTHRU_IP" | Is_IPv4_CIDR)" ] || [ -n "$(echo "$PASSTHRU_IP" | Is_IPv4)" ];then # v4.16.14
cmd ip rule $ACTION from $PASSTHRU_IP table 12$VPN_NUM prio 998$VPN_NUM # v4.16.14
cmd iptables -t nat -I POSTROUTING -s $PASSTHRU_IP -o wg1$VPN_NUM -j MASQUERADE # v4.16.15
fi
fi
logger -t "wg_manager-${MODE}${VPN_NAME}" "'server' peer ($PASSTHRU_SERVER) RPDB" "'$TYPE pass-thru': 'ip ${DASH6}rule $ACTION from $PASSTHRU_IP table 12$VPN_NUM' $DESC" # # v4.16.16 v4.16.14
DASH6= # v4.16.14
done
fi
if [ "$ACTION" == "add" ];then
# Ensure target WireGuard 'client' peer routing policy table contains WireGuard 'server' peer IP/network in the passthru tunnel @chongnt
if [ -n "$(wg show interfaces | grep "$PASSTHRU_SERVER")" ];then
while read ROUTE; do
ip route $ACTION $ROUTE table 12$VPN_NUM 2>/dev/null
local FLUSH="Y"
done << EOR
$(ip route | grep "$PASSTHRU_SERVER")
EOR
fi
if [ "$USE_IPV6" == "Y" ];then # v4.16.7
if [ -n "$(wg show interfaces | grep "$PASSTHRU_SERVER")" ];then
while read ROUTE; do
ip -6 route $ACTION $ROUTE table 12$VPN_NUM 2>/dev/null # v4.16.7
local FLUSH="Y"
done << EOR
$(ip -6 route | grep "$PASSTHRU_SERVER")
EOR
fi
fi
fi
fi
done
if [ "$FLUSH" == "Y" ];then
#ip route show cache
cmd ip route flush cache
if [ "$USE_IPV6" == "Y" ];then
#ip -6 route show cache
# The following ALWAYS issues
# 'Failed to send flush request: No such process', so try it anyway, a reboot will fix it!
[ "$SHOWCMDS" == "Y" ] && echo -e "[?] ip -6 route flush cache $cBRED>>>>'Failed to send flush request: No such process'$cRESET.....ALWAYS FAILS!!!!"
ip -6 route flush cache 2>/dev/null # v4.16.7
fi
else
[ "$ACTION" != "del" ] && logger -t "wg_manager-${MODE}${VPN_NAME}" "Warning 'server' peer ($PASSTHRU_SERVER) route not found - is it UP? FLUSH="$FLUSH
fi
fi
}
Process_Pre_Post_Commands() {
# v4.14.1
while read LINE; do
local CMDTYPE=$1
# %p - Listen Port ONLY recognised by Martineau's WireGuard Manager/wg-quick2
# %wan - WAN Interface ONLY recognised by Martineau's WireGuard Manager/wg-quick2
# %net - Network Tunnel Subnet ONLY recognised by Martineau's WireGuard Manager/wg-quick2
# %lan - LAN Subnet ONLY recognised by Martineau's WireGuard Manager/wg-quick2
# %pos - Firewall insert point ONLY recognised by Martineau's WireGuard Manager/wg-quick2
# %num - Peer instance e.g. 1 ONLY recognised by Martineau's WireGuard Manager/wg-quick2
local CMD="$(echo "$LINE" | sed "s/\%wan/$WAN_IF/g;s/\%net/$SUBNET_PREFIX4/g;s/\%lan/$LAN_SUBNET/g;s/\%pos/$POS/g;s/\%num/$VPN_NUM/g;s/\%p/$LISTEN_PORT/g;s/\%i/$WG_INTERFACE/g")" # v4.17.5 v4.16.3 v4.14.1
if [ -n "$CMD" ];then
logger -t "wg_manager-${MODE}${VPN_NAME}" "Executing $CMDTYPE: '$CMD'" # v4.17
[ "$SHOWCMDS" == "Y" ] && echo -e "[>] ${CMDTYPE}" >&2
if [ -n "$(echo "$CMDTYPE" | grep "Up")" ];then # v4.4.4
cmd $CMD # v4.15.2
else
$CMD 2>/dev/null # v4.4.4
fi
fi
done << EOR
$(grep -E "^${1}" ${CONFIG_DIR}${WG_INTERFACE}.conf | tr ';' '\n' | sed 's/^.*=//')
EOR
}
Firewall_Rule_Exists() {
# v4.15.3
local CMD="$@"
local RULE_EXISTS="N"
local CHECK_DUPLICATE=$(echo "$CMD" | sed 's/-[IA]/-C/')
if [ -z "$(echo "$CMD" | grep -Fo "comment" )" ];then
$CHECK_DUPLICATE -m comment --comment "WireGuard 'client'" 2>/dev/null # v4.15.2
RC=$?
[ $RC -eq 0 ] && local RULE_EXISTS="Y"
fi
if [ "$RULE_EXISTS" == "N" ];then
$CHECK_DUPLICATE 2>/dev/null # v4.15.2
RC=$?
[ $RC -eq 0 ] && local RULE_EXISTS="Y"
fi
echo "$RULE_EXISTS"
}
cmd() {
local TAG="#"
local CMD=$(echo "$@" | awk '{print $1}')
local THIS="$@" # v4.16.9
if [ "$CMD" == ">>" ];then # v4.16.9
local TAG=">>" # v4.16.9
local THIS="$(echo "$@" | awk '{$1=""}1')" # v4.16.9
local THIS="$(echo "$THIS" | awk '{$1=$1};1')" # v4.16.9
fi
# shellcheck disable=SC2145
[ "$SHOWCMDS" == "Y" ] && echo "[$TAG] $@" >&2 # v4.16.9 v4.15.1
case $CMD in # v4.15.2
*tables*) # v4.15.2
if [ "$(Firewall_Rule_Exists "$@")" == "Y" ];then # v4.15.2
#logger -t "wg_manager-${MODE}${VPN_NAME}" "..........duplicate; skipped!"
# shellcheck disable=SC2034
DEBUG_DUPLICATE="======================================================= $@"
return
fi
;;
esac
#[ "$TAG" == ">>" ] && $THIS || $@ # v4.16.9
"$@"
}
Manage_IPV6_PRIO() {
# add | {get vpn_num}
local ACTION=$1
local VPN_NUM=$2
if [ "$ACTION" == "add" ];then
local CNT=$(ip -6 rule | grep -E "^998.:" | wc -l)
local IPV6PRIO=$((9989 - $CNT))
else
local IPV6PRIO=$(ip -6 rule | grep -E "from all lookup 12$VPN_NUM$"| awk '{print $1}' | sed 's/://')
fi
echo "$IPV6PRIO"
}
#=============================================Main=============================================================
#For verbose debugging, uncomment the following two lines, and uncomment the last line of this script
#set -x
#(
# shellcheck disable=SC2068
Main() { true; } # Syntax that is Atom Shellchecker compatible!
CONFIG_DIR="/opt/etc/wireguard.d/" # Conform to "standards" # v1.05 @elorimer
INSTALL_DIR="/jffs/addons/wireguard/"
SQL_DATABASE="/opt/etc/wireguard.d/WireGuard.db" # v1.08
FIRMWARE=$(echo $(nvram get buildno) | awk 'BEGIN { FS = "." } {printf("%03d%02d",$1,$2)}')
WAN_IF=$(Get_WAN_IF_Name)
if [ -f ${INSTALL_DIR}WireguardVPN.conf ] && [ -z "$(grep -E "^NOCOLOR|^NOCOLOUR" ${INSTALL_DIR}WireguardVPN.conf)" ];then # v4.15.3
ANSIColours
fi
modprobe xt_set
modprobe xt_comment
VPN_ID=$1
[ -z "$1" ] && VPN_ID="wg0"
[ "${VPN_ID:0:3}" == "wg1" ] && { MODE="client"; TXT="to"; } || { MODE="server"; TXT="Hosted at"; }
VPN_NUM=${VPN_ID#"${VPN_ID%?}"} # i.e. 'client' Peer prio '99x[0|1]' where the RPDB rules for 'client' Peers 'wg11'-wg15' are '991x-995x'
WG_INTERFACE=$VPN_ID
[ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ] && VPN_NAME=$VPN_ID || VPN_NAME=$WG_INTERFACE # v4.10
LAN_ADDR=$(nvram get lan_ipaddr) # v4.05
LAN_SUBNET=${LAN_ADDR%.*} # v4.05
IPV6_SERVICE=$(nvram get ipv6_service)
if [ "$IPV6_SERVICE" != "disabled" ];then # v4.1
case $IPV6_SERVICE in
native|ipv6pt|dhcp6|6to4|6in4|6rd)
# ip -6 addr | grep "scope global"
USE_IPV6="Y"; IPV6_TXT="(IPv6) " # 4.08
LAN_SUBNET_IPV6=$(nvram get ipv6_prefix) # v4.14.6
LAN_ADDR_IPV6=$(nvram get ipv6_rtr_addr) # v4.14.6
;;
other)
:
;;
spoof|simulate)
USE_IPV6="Y"; IPV6_TXT="(IPv6) Simulate " # v4.14
;;
esac
fi
# Override IPv6 ?
if [ -f /jffs/addons/wireguard/WireguardVPN.conf ] && [ -n "$(grep -E "^NOIPV6" /jffs/addons/wireguard/WireguardVPN.conf)" ];then # v4.12
USE_IPV6="N"; IPV6_TXT=
logger -t "wg_manager-${MODE}${VPN_NAME}" "'NOIPV6' directive found ('WireguardVPN.conf')- IPv6 configuration forced to IPv4" # v4.12
fi
WAN_IPV4=$(ip -4 addr | sed -ne 's|^.* inet \([^/]*\)/.* scope global.*$|\1|p' | awk '{print $1}' | head -1) # v4.14.6
[ "$USE_IPV6" == "Y" ] && WAN_IPV6=$(ip -6 addr | sed -ne 's|^.* inet6 \([^/]*\)/.* scope global.*$|\1|p' | head -1) # v4.14.6
[ -n "$(echo "$@" | grep "force")" ] && FORCE="force"
[ -n "$(echo "$@" | grep "debug")" ] && SHOWCMDS="Y" # v4.14.7
# Is this a standard 'client' Peer interface 'wg11-wg15' # v1.03
if [ -z "$(echo "$VPN_ID" | grep -oE "^wg[0-2]")" ];then # v4.02 v1.03
# Non-standard so identfy if it's a 'client' or 'server' Peer
if [ -f ${CONFIG_DIR}${VPN_ID}.conf ];then # v1.03
if [ -n "$(grep -E "^Endpoint" ${CONFIG_DIR}${VPN_ID}.conf)" ];then # v1.03
MODE="client"
TXT="to"
SOCKET="$(awk '/^Endpoint/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf)" # v1.03
LOCALIP="$(awk -F "[ :]" '/^Endpoint/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf)" # v1.03
else
echo -e $cBRED"\a\n\t***ERROR: WireGuard '$MODE' not supported by $0!\n"$cRESET
exit 87
fi
fi
fi
[ -n "$(echo "$@" | grep "policy")" ] && POLICY_MODE="in Policy Mode " || POLICY_MODE=
# Read the database to set the Annotation Description and LOCAL peer endpoint etc.
if [ "$MODE" == "client" ];then # v1.03
if [ -z "$LOCALIP" ];then
LOCALIP=$(sqlite3 $SQL_DATABASE "SELECT subnet FROM clients where peer='$WG_INTERFACE';")
[ -z "$LOCALIP" ] && { echo -e $cBRED"\a\n\t***ERROR: WireGuard '$MODE' doesn't have a LOCAL IP Address! - try 'peer $WG_INTERFACE ip=xxx.xxx.xxx.xxx/32'?\n"$cRESET ; exit 87 ; } # v4.13
#export LocalIP=$LOCALIP
fi
PEER_DNS_LIST=$(sqlite3 $SQL_DATABASE "SELECT dns FROM clients where peer='$WG_INTERFACE';") # V4.16 v4.05
[ -z "$SOCKET" ] && SOCKET=$(sqlite3 $SQL_DATABASE "SELECT socket FROM clients where peer='$WG_INTERFACE';")
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.09
START_PRIO=99${VPN_NUM}0
END_PRIO=99${VPN_NUM}9
WAN_PRIO=99${VPN_NUM}0
VPN_PRIO=99${VPN_NUM}1
VPN_TBL=12$VPN_NUM
VPN_UNIT=$VPN_ID
else # v4.10
START_PRIO=99999
END_PRIO=99999
VPN_PRIO=99999
WAN_PRIO=99999
fi
else
SOCKET=$(nvram get wan_gateway)":"$(awk '/Listen/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf) # v1.03
fi
DESC=$(sqlite3 $SQL_DATABASE "SELECT tag FROM clients where peer='$WG_INTERFACE';")
[ -z "$DESC" ] && DESC=$(grep -FB1 "[Interface]" ${CONFIG_DIR}${WG_INTERFACE}.conf | grep -vF "[Interface]") # v4.14
DESC=$(printf "%s" "$DESC" | sed 's/^[ \t]*//;s/[ \t]*$//')
[ -z "$DESC" ] && DESC="# Unidentified"
# Called from wg_manager? in response to 'peer wg2X passthru [add|del]'
if [ "$2" == "passthru_rules" ];then
PASSTHRU_ONLY="Y"
Manage_Passthru $3
exit 0
fi
if [ "$1" != "disable" ] && [ "$2" != "disable" ];then
Firewall_delete
if [ -n "$LOCALIP" ] || [ "$MODE" == "client" ];then # v1.03
logger -t "wg_manager-${MODE}${VPN_NAME}" "Initialising WireGuard® VPN $MODE Peer ($VPN_ID) ${POLICY_MODE}${TXT} $SOCKET ($DESC)"
echo -e $cBCYA"\twg_manager-${MODE}${VPN_NAME}: Initialising WireGuard® VPN '$MODE' Peer (${cBMAG}$VPN_ID${cBCYA}) ${POLICY_MODE}${TXT} $SOCKET (${cBMAG}$DESC${cBCYA}) ${cBWHT}DNS=$PEER_DNS_LIST"$cRESET # v4.16
if [ -n "$PEER_DNS_LIST" ];then # v4.16 v4.05
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.09
cmd iptables -t nat -N WGDNS${VPN_NUM} # v4.05
[ $? -gt 0 ] && { echo -e $cBRED"\a\n\t"; logger -st "wg_manager-${MODE}${VPN_NAME}" "***ERROR Failed to create -t nat WGDNS${VPN_NUM}."; echo -e $cRESET; exit 99; }
if [ "$USE_IPV6" == "Y" ];then # v4.11
cmd ip6tables -t nat -N WGDNS${VPN_NUM} # v4.11
fi
[ $? -gt 0 ] && { echo -e $cBRED"\a\n\t"; logger -st "wg_manager-${MODE}${VPN_NAME}" "***ERROR IPv6 Failed to create -t nat WGDNS${VPN_NUM}."; echo -e $cRESET; exit 99; }
else
cmd iptables -t nat -N WGDNS${VPN_NUM} # v4.09
[ $? -gt 0 ] && { echo -e $cBRED"\a\n\t"; logger -st "wg_manager-${MODE}${VPN_NAME}" "***ERROR Failed to create -t nat WGDNS${VPN_NUM}."; echo -e $cRESET; exit 99; }
if [ "$USE_IPV6" == "Y" ];then # v4.11
cmd ip6tables -t nat -N WGDNS${VPN_NUM} # v4.11
fi
[ $? -gt 0 ] && { echo -e $cBRED"\a\n\t"; logger -st "wg_manager-${MODE}${VPN_NAME}" "***ERROR IPv6 Failed to create -t nat WGDNS${WG_INTERFACE}."; echo -e $cRESET; exit 99; }
fi
fi
ip link del dev $VPN_ID 2>/dev/null
cmd ip link add dev $VPN_ID type wireguard
# v4.17.4 now allows .conf to contain comments in directives e.g. Unraid generates
# 'AllowedIPs=0.0.0.0/0 # ALL Traffic'
# so strip them and delete completely empty lines from the .conf executed by wg
grep -vE "^#" ${CONFIG_DIR}$VPN_ID.conf | sed '/^[Dd][Nn][Ss]/d; /^MTU/d; /^Address/d; /^PreU/d; /^PreD/d; /^Post/d; /^Table/d; /^SaveC/d; /^FWmark/d; s/#.*$//g; /^\s*$/d' > /tmp/$VPN_ID.$$ # v4.17.5 @johndoe85 v4.17.4 @endiz v4.16.2
[ "$SHOWCMDS" == "Y" ] && echo -e "[#] wg setconf $VPN_ID /tmp/$VPN_ID.$$ #(${CONFIG_DIR}$VPN_ID.conf)" # v4.16.2 v4.14.13
echo -en ${cWRED} # v4.14.13
wg setconf $VPN_ID /tmp/$VPN_ID.$$ # v4.16.2 v4.14.13
if [ $? -ne 0 ];then
# Syntax ERROR? # v4.14.13
# e.g. Endpoint DDNS not valid/resolved?
echo -en $cRESET
cmd ip link del dev $VPN_ID # v4.14.13
[ "$USE_IPV6" == "Y" ] && cmd ip -6 link del dev $VPN_ID
logger -t "wg_manager-${MODE}${VPN_NAME}" "***ERROR Initialisation ABORTED"
echo -e ${cRESET}$cBRED"\a\n\t***ERROR Initialisation ABORTED - 'wg setconf $VPN_ID /tmp/$VPN_ID.$$ (${CONFIG_DIR}$VPN_ID.conf)' FAILED\n"$cRESET
echo -en $cRESET
exit 1 # v4.14.13
fi
echo -en $cRESET # v4.16.6
# Suppress the message if a domain is supplied i.e.'Error: any valid prefix is expected rather than "'xxx.com"
# v4.12 Assign both IPv4 and IPv6 IPs to interface as required
LOCALIPS=${LOCALIP//,/ } # v4.16.3 v4.11
for LOCALIP in $LOCALIPS
do
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$LOCALIP" | grep -F ":")" ];then # v4.12
cmd ip -6 address add dev $VPN_ID $LOCALIP # v4.02D
else
if [ -n "$(echo "$LOCALIP" | Is_IPv4_CIDR)" ] || [ -n "$(echo "$LOCALIP" | Is_IPv4)" ];then
cmd ip address add dev $VPN_ID $LOCALIP # v4.02
SUBNET_PREFIX4=${LOCALIP%.*} # v4.16.3
fi
fi
done
cmd ip link set up dev $VPN_ID # v4.14.12
[ "$USE_IPV6" == "Y" ] && cmd ip -6 link set up dev $VPN_ID # v4.14.12
# WireGuard should set the MTU correctly without explicitly having to issue 'ifconfig $VPN_ID mtu $MTU' ????
MTU=$(sqlite3 $SQL_DATABASE "SELECT mtu FROM clients where peer='$WG_INTERFACE';") # v4.09
# Fibre MTU 1500 then 1440 (- 60) for IPv4 and 1420 (-80) for IPv6 <<=== Default 1420???
# PPoE MTU 1492 then 1432 (- 60) for IPv4 and 1412 (-80) for IPv6
# Lowest value is 1280 for IPv6
# 1380 is common in some cases?
if [ -z "$MTU" ] || [ "$MTU" == "Auto" ];then # v4.17.2
if [ "$SHOWCMDS" == "Y" ];then # v4.17.2
echo -e "[ ] Auto $(ifconfig $VPN_ID | awk '/MTU:/ { print $(NF-1)}') determined by WireGuard®" # v4.17.2 v4.09 v1.02
fi
else
# WireGuard ISP provided or overridden/supplied by user. e.g. TorGuard pushes MTU=1292
cmd ifconfig $VPN_ID mtu $MTU
fi
cmd ifconfig $VPN_ID txqueuelen 1000
TIMESTAMP=$(date +%s)
sqlite3 $SQL_DATABASE "INSERT into session values('$WG_INTERFACE','Start','$TIMESTAMP');" # v1.08
sqlite3 $SQL_DATABASE "INSERT into traffic values('$WG_INTERFACE','$TIMESTAMP','0','0','0','0');"
if [ -z "$(iptables-save | grep WGM_ACL)" ];then # v4.16.3
cmd iptables -N WGM_ACL_F 2>/dev/null # v4.16.3
cmd iptables -I FORWARD "$(($(iptables -nvL FORWARD --line -t filter | grep -Em 1 ".*\*.*\*.*state.*ESTABLISHED" | cut -d' ' -f1)+1))" -i wg+ -j WGM_ACL_F -m comment --comment "Wireguard ACL" # v4.16.3
fi
POS=$(($(iptables -nvL FORWARD --line -t filter | grep -Em 1 ".*WGM_ACL_F" | cut -d' ' -f1)+1)) # v4.16.3
# v4.14 Process 'PreUp' commands
Process_Pre_Post_Commands "PreUp"
# User Exit @Torson
if [ -f ${INSTALL_DIR}Scripts/${VPN_ID}-route-up.sh ];then
logger -t "wg_manager-${MODE}${VPN_NAME}" "Executing Event:${VPN_ID}-route-up.sh"
[ "$SHOWCMDS" == "Y" ] && echo -e "[+] ${VPN_ID}-route-up.sh"
sh ${INSTALL_DIR}Scripts/${VPN_ID}-route-up.sh
fi
host="$(wg show $VPN_ID endpoints | sed -n 's/.*\t\(.*\):.*/\1/p')"
if [ -n "$(echo "$host" | Is_IPv4)" ];then # v4.08
#cmd ip route add $(ip route get $host | sed '/ via [0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}/{s/^\(.* via [0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\).*/\1/}' | head -n 1)
if [ $(ip route show $host | wc -l) -eq 0 ];then # v4.16.10
cmd ip route add $(ip -o route get $host | awk '{print $1" "$2" "$3}')
fi
else
hostipv6="$(wg show $VPN_ID endpoints | grep -oE "\[.*\]" | tr -d '[]')"
cmd ip -6 route add ::/0 dev $VPN_ID table 12$VPN_NUM prio 999$VPN_NUM
if [ $(ip -6 route show $hostipv6 | wc -l) -eq 0 ];then # v4.16.11
cmd ip -6 route add $(ip -6 -o route get $hostipv6 | awk '{print $1" "$2" "$3}') # v4.16.10
fi
fi
# If there is ALREADY an ACTIVE WireGuard VPN Client, then tough! - make this one the default!!!!
if [ -z "$POLICY_MODE" ];then
if [ "$(wg show interfaces | grep -E "wg[0-1]" | wc -w)" -gt 1 ];then
for THIS in $(wg show interfaces | grep -E "wg[0-1]")
do
ip route del 0/1 dev $THIS 2>/dev/null
ip route del 128/1 dev $THIS 2>/dev/null
if [ "$USE_IPV6" == "Y" ];then
ip -6 route del 0::/1 dev $THIS 2>/dev/null # v4.16
ip -6 route del 8000::/1 dev $THIS 2>/dev/null # v4.16
fi
done
fi
# 0.0.0.0/0 Default
if [ -n "$(awk '/^AllowedIPs/ {print $0}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "0.0.0.0/0")" ] || [ -n "$(awk '/^AllowedIPs/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "::0/0")" ];then # v4.14
if [ "$(awk '/^AllowedIPs/ {print $0}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "0.0.0.0/0")" == "0.0.0.0/0" ];then # v4.14
if [ -z "$(ip route show 0/1 | grep "dev $VPN_ID")" ];then # v4.16.11
cmd ip route add 0/1 dev $VPN_ID
cmd ip route add 128/1 dev $VPN_ID
fi
fi
if [ "$USE_IPV6" == "Y" ];then
#cmd ip -6 route add 0::/1 dev $VPN_ID table 12$VPN_NUM
#cmd ip -6 route add 8000::/1 dev $VPN_ID table 12$VPN_NUM
if [ "$(awk '/^AllowedIPs/ {print $0}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "::0/0")" == "::0/0" ];then # v4.14
#IPV6PRIO=$(Manage_IPV6_PRIO "add") # v4.16
#cmd ip -6 rule add from all table 12$VPN_NUM prio $IPV6PRIO # v4.16
if [ -z "$(ip -6 route show ::/1 | grep "dev $VPN_ID")" ];then # v4.16.11
cmd ip -6 route add 0::/1 dev $VPN_ID
cmd ip -6 route add 8000::/1 dev $VPN_ID
fi
fi
fi
else
for ALLOWIP in $(awk '/^AllowedIPs/ {$1="";$2="";print $0}' ${CONFIG_DIR}${VPN_ID}.conf | tr ',' ' ')
do
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$ALLOWIP" | grep -F ":")" ];then # v4.12
cmd ip -6 route add $ALLOWIP dev $VPN_ID
else
if [ -n "$(echo "$ALLOWIP" | Is_IPv4_CIDR)" ] || [ -n "$(echo "$ALLOWIP" | Is_IPv4)" ];then
cmd ip route add $ALLOWIP dev $VPN_ID
fi
fi
done
fi
# Could be anything really.... e.g. 0.0.0.0/0,::0/0
#if [ -n "$(awk '/^AllowedIPs/ {print $0}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "0.0.0.0/0")" ] || [ -n "$(awk '/^AllowedIPs/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "::0/0")" ];then
if [ -n "$PEER_DNS_LIST" ];then # V4.16
for PEER_DNS in $(echo "$PEER_DNS_LIST" | tr ',' ' ') # v4.16
do
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.09
if [ -n "$(echo "${LAN_SUBNET}.0/24" | Is_IPv4_CIDR)" ];then
if [ -z "$(echo "$PEER_DNS" | grep -F ":")" ];then # v4.16 @archiel
cmd iptables -t nat -A WGDNS$VPN_NUM -s ${LAN_SUBNET}.0/24 -j DNAT --to-destination $PEER_DNS -m comment --comment "WireGuard 'client${VPN_NUM} DNS'" # v4.05
fi
fi
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$PEER_DNS" | grep -F ":")" ];then
# ipv6_service=dhcp6
# ipv6_prefix=2a02:c7f:xxxx:yyyy::
# ipv6_prefix_length=56
# ipv6_rtr_addr=2a02:c7f:xxxx:yyyy::1
if [ -n "$(nvram get ipv6_rtr_addr)" ];then
cmd ip6tables -t nat -A WGDNS$VPN_NUM -s $(nvram get ipv6_prefix)/$(nvram get ipv6_prefix_length) -j DNAT --to-destination $PEER_DNS -m comment --comment "WireGuard 'client${VPN_NUM} DNS'"
else
cmd ip6tables -t nat -A WGDNS$VPN_NUM -j DNAT --to-destination $PEER_DNS -m comment --comment "WireGuard 'client${VPN_NUM} DNS'"
fi
fi
else
[ -z "$(echo "$PEER_DNS" | grep -F ":")" ] && cmd iptables -t nat -A WGDNS$WG_INTERFACE -s ${LAN_SUBNET}.0/24 -j DNAT --to-destination $PEER_DNS -m comment --comment "WireGuard 'client${WG_INTERFACE} DNS'" # v4.09
fi
done
fi
#fi
else
# [ -z "$(ip -6 route show dev $VPN_ID match ::/0" 2>/dev/null) ] && ip -6 route add "::/0" dev "$VPN_ID" prio 999$VPN_NUM
#cmd ip -6 route add ::/0 dev $VPN_ID table 12$VPN_NUM
#cmd ip -6 route add default dev $VPN_ID metric 1 pref medium table 12$VPN_NUM # v4.16
#cmd ip -6 route add 0::/1 dev $VPN_ID table 12$VPN_NUM
#cmd ip -6 route add 8000::/1 dev $VPN_ID table 12$VPN_NUM
#ip rule add from $(nvram get lan_ipaddr | cut -d"." -f1-3).0/24 table 12$VPN_NUM prio 99$VPN_NUM"9"
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.09
VPN_IP_LIST=$(sqlite3 $SQL_DATABASE "SELECT * FROM policy WHERE peer='$WG_INTERFACE';")
create_client_list
else
echo -e "\a\n\t";logger -st "wg_manager-{$MODE}${VPN_NAME}" "Policy mode not supported for non 'wg1*' prefix '$MODE' Peer '$WG_INTERFACE'"
echo -e
fi
# IPSets ?
if [ -n "$(sqlite3 $SQL_DATABASE "SELECT ipset FROM ipset WHERE peer='${WG_INTERFACE}';")" ];then
IPSETS=$(sqlite3 $SQL_DATABASE "SELECT ipset FROM ipset WHERE peer='${WG_INTERFACE}';" | tr '\n' ' ')
for IPSET in $IPSETS
do
ipset list $IPSET -n >/dev/null 2>&1;if [ $? -eq 0 ]; then
IPSET_FAMILY=$(ipset list $IPSET | awk '/^Header/ {print $3}')
[ "$IPSET_FAMILY" == "inet6" ] && IPV_TEXT="IPv6" || IPV_TEXT="IPv4"
DSTSRC=$(sqlite3 $SQL_DATABASE "SELECT dstsrc FROM ipset WHERE ipset='$IPSET' AND peer='${WG_INTERFACE}';")
FWMARK=$(sqlite3 $SQL_DATABASE "SELECT fwmark FROM ipset WHERE ipset='$IPSET' AND peer='${WG_INTERFACE}';")
TAG_MARK=$(sqlite3 /opt/etc/wireguard.d/WireGuard.db "select fwmark from fwmark where peer='${WG_INTERFACE}';") # v4.12 # v4.12
ip rule del from 0/0 fwmark $TAG_MARK"/"$TAG_MARK table 12$VPN_NUM prio 999$VPN_NUM 2>/dev/null # v4.12
cmd ip rule add from 0/0 fwmark $TAG_MARK"/"$TAG_MARK table 12$VPN_NUM prio 999$VPN_NUM # v4.12
echo 0 >/proc/sys/net/ipv4/conf/$WG_INTERFACE/rp_filter # v4.12
if [ "$USE_IPV6" == "Y" ];then
ip -6 rule del from ::/0 fwmark $TAG_MARK"/"$TAG_MARK table 12$VPN_NUM prio 999$VPN_NUM 2>/dev/null # v4.13
cmd ip -6 rule add from ::/0 fwmark $TAG_MARK"/"$TAG_MARK table 12$VPN_NUM prio 999$VPN_NUM # v4.13
fi
# Differentiate between IPSETs containing IPv4 or IPv6 IPs
if [ "$IPSET_FAMILY" = "inet6" ];then # IPv6
ADD_IPV6_RULE="Y" # v4.16
else
# Presumed IPv4
ADD_IPV4_RULE="Y" # v4.16
fi
# IPSets containing MACs can only be 'src'; and should be applied to both IPv4 and IPv6 firewall?
# hash:mac
# hash:ip,mac
# NOTE: Preferable to actually explicitly define both an IPv4 and IPV6 IPSet?
if [ -n "$(ipset list $IPSET | grep -E "hash:mac|hash:ip,mac")" ];then # v4.16 @ZebMcKayhan
DSTSRC="src"
ADD_IPV4_RULE="Y" # v4.16 @ZebMcKayhan
ADD_IPV6_RULE="Y" # v4.16 @ZebMcKayhan
IPV_TEXT="IPv4/IPv6" # v4.16
fi
if [ "$ADD_IPV4_RULE" == "Y" ] || [ "$ADD_IPV6_RULE" == "Y" ];then
if [ "$ADD_IPV4_RULE" == "Y" ] && [ "$IPSET_FAMILY" != "inet6" ];then
iptables -t mangle -D PREROUTING -m set --match-set $IPSET $DSTSRC -j MARK --set-mark ${FWMARK}/${FWMARK} -m comment --comment "WireGuard 'client'" 2>/dev/null # v4.12
cmd iptables -t mangle -A PREROUTING -m set --match-set $IPSET $DSTSRC -j MARK --set-mark ${FWMARK}/${FWMARK} -m comment --comment "WireGuard 'client'" # v4.12
fi
if [ "$ADD_IPV6_RULE" == "Y" ] && [ "$USE_IPV6" == "Y" ];then
ip6tables -t mangle -D PREROUTING -m set --match-set $IPSET $DSTSRC -j MARK --set-mark ${FWMARK}/${FWMARK} -m comment --comment "WireGuard 'client'" 2>/dev/null # v4.12
cmd ip6tables -t mangle -A PREROUTING -m set --match-set $IPSET $DSTSRC -j MARK --set-mark ${FWMARK}/${FWMARK} -m comment --comment "WireGuard 'client'" # v4.12
fi
logger -t "wg_manager-${MODE}${VPN_NAME}" "Adding $IPV_TEXT IPSet '$IPSET' route through VPN 'client' Peer" $WG_INTERFACE
else
logger -t "wg_manager-${MODE}${VPN_NAME}" "***ERROR IPSet '$IPSET' unknown IPv4/IPv6 type for routing through VPN 'client' Peer "$WG_INTERFACE
# shellcheck disable=SC2027
echo -e $cBRED"\a\n\t***ERROR IPSet '$IPSET' unidentified IPv4/IPv6 type for routing through VPN 'client' Peer "$WG_INTERFACE"\n"$cRESET
fi
else
logger -t "wg_manager-${MODE}${VPN_NAME}" "***ERROR IPSet '$IPSET' does NOT EXIST! for routing through VPN 'client' Peer "$WG_INTERFACE
fi
ADD_IPV4_RULE=
ADD_IPV6_RULE=
done
fi
fi
#if [ -n "$(awk '/^AllowedIPs/ {print $0}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "0.0.0.0/0")" ] || [ -n "$(awk '/^AllowedIPs/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "::0/0")" ];then # v4.14
#if [ -n "$(awk '/^AllowedIPs/ {print $0}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "0.0.0.0/0")" ];then
cmd ip route add 0/1 dev $VPN_ID table 12$VPN_NUM
cmd ip route add 128/1 dev $VPN_ID table 12$VPN_NUM
#fi
if [ "$USE_IPV6" == "Y" ];then # v4.08
#if [ -n "$(awk '/^AllowedIPs/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf | grep -oF "::0/0")" ];then
cmd ip -6 route add 0::/1 dev $VPN_ID table 12$VPN_NUM
cmd ip -6 route add 8000::/1 dev $VPN_ID table 12$VPN_NUM
#fi
fi
#fi
ip route show table main dev $(nvram get lan_ifname) | while read ROUTE
do
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.09
cmd ip route add table 12$VPN_NUM $ROUTE dev $(nvram get lan_ifname)
else
cmd ip route add table 120 $ROUTE dev $(nvram get lan_ifname) # v4.10
fi
done
if [ "$USE_IPV6" == "Y" ];then
#cmd ip -6 route add $(echo $LOCALIP | sed 's/::/|/' | cut -d"|" -f1)::0/64 dev $VPN_ID proto kernel scope link src $LOCALIP # v4.11
ip -6 route show table main dev $(nvram get lan_ifname) | while read ROUTE
do
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.10
[ -z "$(echo "$ROUTE" | grep "expires")" ] && cmd ip -6 route add table 12$VPN_NUM $ROUTE dev $(nvram get lan_ifname)
else
cmd ip -6 route add table 120 dev $(nvram get lan_ifname)
fi
done
fi
# PASSTHRU ?
Manage_Passthru
# User Exit @ZebMcKayhan
if [ -f ${INSTALL_DIR}Scripts/${VPN_ID}-up.sh ];then
logger -t "wg_manager-${MODE}${VPN_NAME}" "Executing Event:${VPN_ID}-up.sh"
[ "$SHOWCMDS" == "Y" ] && echo -e "[+] ${VPN_ID}-up.sh"
sh ${INSTALL_DIR}Scripts/${VPN_ID}-up.sh # v4.08
fi
if [ -f /jffs/addons/wireguard/WireguardVPN.conf ] && [ -z "$(grep -E "^NOTCPMSS" /jffs/addons/wireguard/WireguardVPN.conf)" ];then # v4.12
cmd iptables -t mangle -I FORWARD -o $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'"
cmd iptables -t mangle -I FORWARD -i $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'"
else
logger -t "wg_manager-${MODE}${VPN_NAME}" "'NOTCPMSS' directive found ('WireguardVPN.conf') -t mangle FORWARD chain TCP '-j TCPMSS --clamp-mss-to-pmtu' NOT configured" # v4.12
fi
if [ -f /jffs/addons/wireguard/WireguardVPN.conf ] && [ -z "$(grep -E "^NOSETXMARK" /jffs/addons/wireguard/WireguardVPN.conf)" ];then # v4.12
cmd iptables -t mangle -I FORWARD -o $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'"
cmd iptables -t mangle -I PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'"
else
logger -t "wg_manager-${MODE}${VPN_NAME}" "'NOSETXMARK' directive found ('WireguardVPN.conf') -t mangle FORWARD/PREROUTING chain'-j MARK --set-xmark 0x01/0x7' NOT configured" # v4.12
fi
if [ $FIRMWARE -ge 38601 ] && [ -n "$(brctl show | grep -E "\.50[1-2]")" ];then # Allow Guest #1 SSID VLANs SNB @ZebMcKayhan
cmd iptables -t filter -I FORWARD -i br1 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN"
cmd iptables -t filter -I FORWARD -i br2 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN"
cmd iptables -t nat -I POSTROUTING -s $(nvram get lan_ipaddr)/16 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'"
else
cmd iptables -t nat -I POSTROUTING -s $(nvram get lan_ipaddr)/24 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'"
fi
if [ -n "$PEER_DNS_LIST" ];then
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.10
cmd iptables -t nat -I PREROUTING -p tcp -m tcp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'"
cmd iptables -t nat -I PREROUTING -p udp -m udp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'"
else
cmd iptables -t nat -I PREROUTING -p tcp -m tcp --dport 53 -j WGDNS${WG_INTERFACE} -m comment --comment "WireGuard 'client${WG_INTERFACE} DNS'"
cmd iptables -t nat -I PREROUTING -p udp -m udp --dport 53 -j WGDNS${WG_INTERFACE} -m comment --comment "WireGuard 'client${WG_INTERFACE} DNS'"
fi
fi
if [ "$USE_IPV6" == "Y" ];then
if [ -f /jffs/addons/wireguard/WireguardVPN.conf ] && [ -z "$(grep -E "^NOTCPMSS" /jffs/addons/wireguard/WireguardVPN.conf)" ];then # v4.12
cmd ip6tables -t mangle -I FORWARD -o $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'"
cmd ip6tables -t mangle -I FORWARD -i $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'client'"
else
logger -t "wg_manager-${MODE}${VPN_NAME}" "'NOTCPMSS' directive found ('WireguardVPN.conf') IPv6 -t mangle FORWARD chain TCP '-j TCPMSS --clamp-mss-to-pmtu' NOT configured" # v4.12
fi
if [ -f /jffs/addons/wireguard/WireguardVPN.conf ] && [ -z "$(grep -E "^NOSETXMARK" /jffs/addons/wireguard/WireguardVPN.conf)" ];then # v4.12
cmd ip6tables -t mangle -I FORWARD -o $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'"
cmd ip6tables -t mangle -I PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'client'"
else
logger -t "wg_manager-${MODE}${VPN_NAME}" "'NOSETXMARK' directive found ('WireguardVPN.conf') IPv6 -t mangle FORWARD/PREROUTING chain'-j MARK --set-xmark 0x01/0x7' NOT configured" # v4.12
fi
# v386.4 Firmware is missing 'ip6tables -I FORWARD -i br0 -j ACCEPT' ?
POS=$(ip6tables --line -nvL FORWARD | grep -im 1 "drop .*all.*state INVALID" | awk '{print $1}') # v4.14.11 v4.14.10
[ -z "$(ip6tables-save | grep "Fix LAN to ANY by Martineau")" ] && ip6tables -I FORWARD $((POS+1)) -i br0 -j ACCEPT -m comment --comment "Fix LAN to ANY by Martineau" # v4.14.10
ip6tables -I FORWARD $((POS+1)) -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "LAN to WireGuard 'client'" # v4.14.10 @ZebMcKayhan
if [ $FIRMWARE -ge 38601 ] && [ -n "$(brctl show | grep -E "\.50[1-2]")" ];then # Allow Guest #1 SSID VLANs SNB @ZebMcKayhan
cmd ip6tables -t filter -I FORWARD -i br1 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN"
cmd ip6tables -t filter -I FORWARD -i br2 -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard Guest_VLAN"
[ -n "$(nvram get ipv6_rtr_addr)" ] && cmd ip6tables -t nat -I POSTROUTING -s $(nvram get ipv6_rtr_addr)/64 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'"
else
[ -n "$(nvram get ipv6_rtr_addr)" ] && cmd ip6tables -t nat -I POSTROUTING -s $(nvram get ipv6_rtr_addr)/64 -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'"
fi
[ -z "$(nvram get ipv6_rtr_addr)" ] && cmd ip6tables -t nat -I POSTROUTING -o $VPN_ID -j MASQUERADE -m comment --comment "WireGuard 'client'"
if [ -n "$PEER_DNS_LIST" ];then
if [ -n "$(echo "$VPN_NUM" | grep -oE '^[0-9]+$')" ]; then # v4.10
cmd ip6tables -t nat -I PREROUTING -p tcp -m tcp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'"
cmd ip6tables -t nat -I PREROUTING -p udp -m udp --dport 53 -j WGDNS${VPN_NUM} -m comment --comment "WireGuard 'client${VPN_NUM} DNS'"
else
cmd ip6tables -t nat -I PREROUTING -p tcp -m tcp --dport 53 -j WGDNS${WG_INTERFACE} -m comment --comment "WireGuard 'client${WG_INTERFACE} DNS'"
cmd ip6tables -t nat -I PREROUTING -p udp -m udp --dport 53 -j WGDNS${WG_INTERFACE} -m comment --comment "WireGuard 'client${WG_INTERFACE} DNS'"
fi
fi
fi
# Shouldn't fire as I use '-t nat WGDNSx' chain
# if [ "$wgdns" != "" ] && [ ! -f /tmp/resolv.dnsmasq_backup.$WG_INTERFACE ]; then {
# cp /tmp/resolv.dnsmasq /tmp/resolv.dnsmasq_backup..$WG_INTERFACE 2>/dev/null
# echo "server=$wgdns" > /tmp/resolv.dnsmasq
# service restart_dnsmasq
# }
# fi
# v4.14 Process 'PostUp' commands
Process_Pre_Post_Commands "PostUp"
if [ -f /jffs/addons/wireguard/WireguardVPN.conf ] && [ -n "$(grep -E "^CHK_ENDPOINT" ${INSTALL_DIR}WireguardVPN.conf)" ];then # v# v4.14
# e.g. the following would use the curl command for ALL interfaces except 'wg14' (TorGuard)
# CHK_ENDPOINT = curl -s https://am.i.mullvad.net/connected , * wg14-
# Full feature URL check https://mullvad.net/en/check/ (e.g. Mullvad hijacks DNS requests see https://schnerring.net/blog/use-custom-dns-servers-with-mullvad-and-any-wg_manager-client/)
CHK_ENDPOINT=$( awk "/^CHK_ENDPOINT.*\*/" ${INSTALL_DIR}WireguardVPN.conf) # v4.16.12 v4.14
[ -z "$CHK_ENDPOINT" ] && CHK_ENDPOINT=$( awk "/^CHK_ENDPOINT.*${WG_INTERFACE}/" ${INSTALL_DIR}WireguardVPN.conf) # v4.16.12
if [ -n "$CHK_ENDPOINT" ];then # v4.14
END_POINT_INTERFACES=$(echo "$CHK_ENDPOINT" | awk -F ',' '{print $2}')
CMD_ENDPOINT=$(echo "$CHK_ENDPOINT" | tr '=' ',' | awk -F ',' '{print $2}')
if [ -n "$(echo "$END_POINT_INTERFACES" | grep -F "*")" ] || [ -n "$(echo "$END_POINT_INTERFACES" | grep "$WG_INTERFACE")" ] ;then
if [ -z "$(echo "$END_POINT_INTERFACES" | grep "${WG_INTERFACE}-")" ];then
CHK_ENDPOINT=$($CMD_ENDPOINT) # v4.14
echo -en $cBGRE
if [ -z "$(echo "$CHK_ENDPOINT" | grep -i "not connected")" ];then # v4.14
echo -en $cBCYA"\t"
logger -st "wg_manager-${MODE}${VPN_NAME}" $CHK_ENDPOINT
#echo -en $cBGRE"\t"
fi
else
# shellcheck disable=SC2027