/
wg_server
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/
wg_server
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#!/bin/sh
# shellcheck disable=SC2039,SC2155,SC2124
VERSION="v4.17.1"
#============================================================================================ © 2021-2022 Martineau v4.17.1
#
# Maintainer: Martineau
# Last Updated Date: 08-May-2022
#
# Description:
#
# Acknowledgement:
#
# Contributors: odkrys,ZebMcKayhan,Torson,chongnt,Bearnet
# 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_IPv4() {
grep -oE '^([0-9]{1,3}\.){3}[0-9]{1,3}$' # IPv4 format
}
Is_IPv4_CIDR () {
grep -oE '^([0-9]{1,3}\.){3}[0-9]{1,3}/[0-9]{1,2}$' # 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
}
Is_Private_IPv6 () {
grep -oE "(::1$)|([fF][cCdD])"
}
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 PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'server'" 2>/dev/null
iptables -t mangle -D FORWARD -o $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'server'" 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 'server'" 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 'server'" 2>/dev/null
iptables -D INPUT -p udp --dport $wgport -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
iptables -D INPUT -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
iptables -D FORWARD -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
iptables -D FORWARD -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
iptables -D FORWARD -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "LAN to WireGuard 'server clients'" 2>/dev/null
iptables -D OUTPUT -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
iptables -t nat -D PREROUTING -p udp --dport $wgport -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
local LOCALIPS=${SUBNET//,/ } # v4.16.4 v4.11
for THIS in $LOCALIPS # v4.11
do # v4.11
if [ -z "$(echo "$THIS" | grep -F ":")" ] ;then # v4.11
iptables -t nat -D POSTROUTING -s $THIS -o wg1+ -j MASQUERADE -m comment --comment "WireGuard 'server'" 2>/dev/null # v1.11
iptables -t nat -D POSTROUTING -s $THIS -o br0 -j MASQUERADE -m comment --comment "WireGuard 'server clients to LAN'" 2>/dev/null # v4.14.2
fi
done
if [ "$(nvram get ipv6_service)" != "disabled" ];then
ip6tables -t mangle -D PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'server'" 2>/dev/null
ip6tables -t mangle -D FORWARD -o $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'server'" 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 'server'" 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 'server'" 2>/dev/null
ip6tables -D INPUT -p udp --dport $wgport -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
ip6tables -D INPUT -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
ip6tables -D FORWARD -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
ip6tables -D FORWARD -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
ip6tables -D FORWARD -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "LAN to WireGuard 'server clients'" 2>/dev/null
ip6tables -D OUTPUT -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null
ip6tables -t nat -D PREROUTING -p udp --dport $wgport -j ACCEPT -m comment --comment "WireGuard 'server'" 2>/dev/null # v4.14.1
local LOCALIPS=${SUBNET//,/ } # v4.16.4 v4.11
for THIS in $LOCALIPS # v4.11
do # v4.11
if [ -n "$(echo "$THIS" | grep -F ":")" ] ;then # v4.11
ip6tables -t nat -D POSTROUTING -s $THIS -o wg1+ -j MASQUERADE -m comment --comment "WireGuard 'server'" 2>/dev/null # v4.14.1
ip6tables -t nat -D POSTROUTING -s $THIS -o br0 -j MASQUERADE -m comment --comment "WireGuard 'server clients to LAN'" 2>/dev/null # v4.14.1
fi
done
fi
}
Manage_Passthru() {
local PASSTHRU_CLIENTS=$(sqlite3 $SQL_DATABASE "SELECT client FROM passthru where server='$WG_INTERFACE';" | sort | uniq | tr '\n' ' ')
local VPN_ID= # v4.13 Fix @chongnt
local ACTION="add"
[ -n "$1" ] && ACTION=$1 # "del" or "add"
if [ -n "$PASSTHRU_CLIENTS" ];then
local IP_ADDR=$(sqlite3 $SQL_DATABASE "SELECT subnet FROM servers where peer='$WG_INTERFACE';")
for VPN_ID in $PASSTHRU_CLIENTS # wg11 wg14
do
local VPN_NUM=${VPN_ID#"${VPN_ID%?}"}
local TABLE=12$VPN_NUM
[ "$VPN_ID" == "wan" ] && TABLE="main"
if [ "$ACTION" == "add" ];then
if [ "$VPN_ID" != "wan" ];then
# Ensure target WireGuard 'client' peer routing policy table contains WireGuard 'server' peer IP/network in the passthru tunnel @chongnt
while read ROUTE; do
cmd ip route $ACTION $ROUTE table $TABLE 2>/dev/null && FLUSH="Y"
done << EOR
$(ip route | grep "$WG_INTERFACE")
EOR
if [ "$USE_IPV6" == "Y" ];then # v4.16.9
# Ensure target WireGuard 'client' peer IPv6 routing policy table contains WireGuard 'server' peer IP/network in the passthru tunnel @chongnt
while read ROUTE; do
cmd ip -6 route $ACTION $ROUTE table $TABLE 2>/dev/null && FLUSH="Y"
done << EOR
$(ip -6 route | grep "$WG_INTERFACE")
EOR
fi
fi
for PASSTHRU_IP in $(echo "$IP_ADDR" | tr ',' ' ') # v4.16.11
do
[ -z "$(echo "$PASSTHRU_IP" | grep -F ":")" ] && cmd ip rule $ACTION from $PASSTHRU_IP table $TABLE prio 998$VPN_NUM # v4.16.11 v4.14 v4.13 Fix @chongnt
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$PASSTHRU_IP" | grep -F ":")" ];then # v4.16.11
cmd ip -6 rule $ACTION from $PASSTHRU_IP table $TABLE prio 998$VPN_NUM # v4.16.11 v4.16.9
DASH6="-6 " # v4.16.11
fi
logger -t "wg_manager-${MODE}${VPN_NAME}" "'client' peer ($PASSTHRU_CLIENTS) RPDB" "'pass-thru': 'ip ${DASH6}rule $ACTION from $PASSTHRU_IP table $TABLE'"
DASH6= # v4.16.11
done
else
ip rule $ACTION from $IP_ADDR table $TABLE prio 998$VPN_NUM 2>/dev/null # v4.14
[ "$USE_IPV6" == "Y" ] && ip -6 rule $ACTION from $IP_ADDR table $TABLE prio 998$VPN_NUM 2>/dev/null # v4.16.9
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
#logger -st "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=$1
local CMD="$(echo "$LINE" | sed "s/\%wan/$WAN_IF/g;s/\%net/$SUBNET_PREFIX4/g;s/\%lan/$LAN_PREFIX/g;s/\%pos/$POS/g;s/\%p/$LISTEN_PORT/g;s/\%i/$WG_INTERFACE/g")" # v4.14.4 v4.14.1
if [ -n "$CMD" ];then
logger -t "wg_manager-${MODE}${VPN_NAME}" "Executing $CMDTYPE: '$CMD'"
[ "$SHOWCMDS" == "Y" ] && echo -e "[>] ${CMDTYPE}" >&2
if [ -n "$(echo "$CMDTYPE" | grep "Up")" ];then # v4.4.4
cmd $CMD
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() {
local CMD="$@"
local RULE_EXISTS="N"
local CHECK_DUPLICATE=$(echo "$CMD" | sed 's/-[IA]/-C/')
if [ -z "$(echo "$CMD" | grep -Fo "comment" )" ];then
$CHECK_DUPLICATE -m comment --comment "WireGuard 'server'" 2>/dev/null
RC=$?
[ $RC -eq 0 ] && local RULE_EXISTS="Y"
fi
if [ "$RULE_EXISTS" == "N" ];then
$CHECK_DUPLICATE 2>/dev/null
RC=$?
[ $RC -eq 0 ] && local RULE_EXISTS="Y"
fi
echo "$RULE_EXISTS"
}
cmd() {
local CMD=$(echo "$@" | awk '{print $1}')
[ "$SHOWCMDS" == "Y" ] && echo "[#] $*" >&2 # v4.15.1
case $CMD in
*tables*)
if [ "$(Firewall_Rule_Exists "$@")" == "Y" ];then
#logger -t "wg_manager-${MODE}${VPN_NAME}" "..........duplicate; skipped!"
# shellcheck disable=SC2034
DEBUG_DUPLICATE="======================================================= $@"
return
fi
;;
esac
"$@"
}
#For verbose debugging, uncomment the following two lines, and uncomment the last line of this script
#set -x
#(
Main() { true; } # Syntax that is Atom Shellchecker compatible!
SQL_DATABASE="/opt/etc/wireguard.d/WireGuard.db" # v1.13
CONFIG_DIR="/opt/etc/wireguard.d/" # Conform to "standards" # v1.08 @elorimer
INSTALL_DIR="/jffs/addons/wireguard/"
LANIPADDR=$(nvram get lan_ipaddr)
LAN_PREFIX=${LANIPADDR%.*}
POS=$(($(iptables -nvL FORWARD --line -t filter | grep -Em 1 ".*\*.*\*.*state.*ESTABLISHED" | cut -d' ' -f1)+1))
VPN_ID=$1
[ -z "$1" ] && VPN_ID="wg21"
VPN_NAME=$VPN_ID
if [ -f ${INSTALL_DIR}WireguardVPN.conf ] && [ -z "$(grep -E "^NOCOLOR|^NOCOLOUR" ${INSTALL_DIR}WireguardVPN.conf)" ];then # v4.15.4
ANSIColours
fi
[ ! -f ${CONFIG_DIR}${VPN_ID}.conf ] && { echo -e $cBRED"\a\n\t***ERROR $cBWHT'${CONFIG_DIR}${VPN_ID}.conf'$cBRED not found"; exit 99 ;} # v4.16.6
modprobe xt_set
modprobe xt_comment # v1.13 Hotfix
[ -n "$(echo "$@" | grep "debug")" ] && SHOWCMDS="Y" # v4.14.4
[ -n "$(echo "$@" | grep "wg-quick")" ] && EXECUTE="wg-quick" # v4.14.5
WG_INTERFACE=$VPN_ID
VPN_NUM=${VPN_ID#"${VPN_ID%?}"} # v4.02
WAN_IF=$(Get_WAN_IF_Name)
wgport=$(awk '/^Listen/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf) # v4.14.4
SUBNET=$(sqlite3 $SQL_DATABASE "SELECT subnet FROM servers where peer='$WG_INTERFACE';") # v1.09 @here1310
SOCKET=$(nvram get wan0_gateway)":"$wgport # v4.04
DESC=$(sqlite3 $SQL_DATABASE "SELECT tag FROM servers where peer='$WG_INTERFACE';")
DESC=$(printf "%s" "$DESC" | sed 's/^[ \t]*//;s/[ \t]*$//')
[ -z "$DESC" ] && DESC="# Unidentified"
IPV6_SERVICE=$(nvram get ipv6_service) # v4.14.1
if [ "$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 $1}' | head -1) # v4.14.1
[ "$USE_IPV6" == "Y" ] && { WAN_IPV6=$(ip -6 addr | sed -ne 's|^.* inet6 \([^/]*\)/.* scope global.*$|\1|p' | head -1); IPV6_TXT=$IPV6_TXT"[$WAN_IPV6] "; } # v4.14.1
if [ "$USE_IPV6" != "Y" ];then
# CIDR ?
if [ -z "$(echo "$SUBNET" | Is_IPv4_CIDR)" ];then
SUBNET_PREFIX=${SUBNET%.*}
SUBNET=$SUBNET_PREFIX".0/24"
IPV6_TXT= # v4.16.1
fi
fi
LISTEN_PORT=$(awk '/^ListenPort/ {print $3}' ${CONFIG_DIR}${WG_INTERFACE}.conf)
ADDRESS_TXT= # v4.16.1
for THIS in ${SUBNET//,/ } # v4.16.4 v4.16.1
do # v4.16.1
IP=${THIS%/*}
[ -n "$(echo "$IP" | grep -F ":")" ] && IP="[$IP]" || SUBNET_PREFIX4=${IP%.*} # v4.16.4
[ -n "$ADDRESS_TXT" ] && ADDRESS_TXT=${ADDRESS_TXT}","${IP} || ADDRESS_TXT=${IP} # v4.16.1
done
ADDRESS_TXT=$ADDRESS_TXT":"$LISTEN_PORT # v4.16.1
if [ "$2" != "disable" ];then
logger -t "wg_manager-server${VPN_NAME}" "Initialising WireGuard® VPN ${IPV6_TXT}'Server' Peer ($VPN_ID) on $ADDRESS_TXT" # v4.16.1 @ZebMcKayhan
echo -e $cBCYA"\twg_manager-server${VPN_NAME}: Initialising WireGuard® VPN ${IPV6_TXT}'Server' Peer (${cBMAG}${VPN_ID}${cBCYA}) on $ADDRESS_TXT (${cBMAG}${DESC}${cBCYA})"$cRESET # v4.16.1 @ZebMcKayhan
ip link del dev $VPN_ID 2>/dev/null
cmd ip link add dev $VPN_ID type wireguard
if [ "$USE_IPV6" == "Y" ];then # v4.05
ip -6 link del dev $VPN_ID 2>/dev/null
cmd ip -6 link add dev $VPN_ID type wireguard
fi
cmd wg set $VPN_ID fwmark $wgport
grep -v "#" ${CONFIG_DIR}$VPN_ID.conf | sed '/^DNS/d; /^MTU/d; /^Address/d; /^PreU/d; /^PreD/d; /^Post/d; /^Table/d; /^SaveC/d; /^FWmark/d' > /tmp/$VPN_ID.$$ # v4.16.2
[ "$SHOWCMDS" == "Y" ] && echo -e "[#] wg setconf $VPN_ID /tmp/$VPN_ID.$$ #(${CONFIG_DIR}$VPN_ID.conf)" # v.4.16.3 v4.14.5
echo -en ${cWRED}
wg setconf $VPN_ID /tmp/$VPN_ID.$$ # v4.16.2
if [ $? -ne 0 ];then # v4.14.5
# Syntax ERROR?
# e.g. Endpoint DDNS not valid/resolved?
echo -en $cRESET
cmd ip link del dev $VPN_ID # v4.14.5
[ "$USE_IPV6" == "Y" ] && cmd ip -6 link del dev $VPN_ID
logger -t "wg_manager-server${VPN_NAME}" "***ERROR Initialisation ABORTED" # v4.14.5
echo -e ${cRESET}$cBRED"\a\n\t***ERROR Initialisation ABORTED - 'wg setconf $VPN_ID /tmp/$VPN_ID.$$ (${CONFIG_DIR}$VPN_ID.conf)' FAILED\n"$cRESET
echo -en $cRESET
exit 1 # v4.14.5
fi
echo -en $cRESET
# v4.14 Process 'PreUp' commands
Process_Pre_Post_Commands "PreUp" # v4.14.1
cmd ip link set up dev $VPN_ID
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$SUBNET" | grep ":")" ];then # v4.05
cmd ip -6 link set up dev $VPN_ID
fi
# v4.12 Assign both IPv4 and IPv6 IPs to interface as required
LOCALIPS=$(echo "$SUBNET" | tr ',' ' ')
for LOCALIP in $LOCALIPS # v4.10
do
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$LOCALIP" | grep -F ":")" ];then # v4.10
# Assumed Private IPv6 but user may have created 'server' Peer with non-Private IPv6? # v4.16.1
cmd ip -6 address add dev $VPN_ID $LOCALIP # v4.10
else
if [ -n "$(echo "$LOCALIP" | Is_IPv4_CIDR)" ] || [ -n "$(echo "$LOCALIP" | Is_IPv4)" ];then
cmd ip address add dev $VPN_ID $LOCALIP # v4.10
fi
fi
done
#MTU=$(awk '/^#?MTU/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf) # v4.15.7 @Bearnet
MTU=$(awk '/^MTU/ {print $3}' ${CONFIG_DIR}${VPN_ID}.conf) # v4.16.1 v4.15.7 @Bearnet
if [ -z "$MTU" ];then
cmd ifconfig $VPN_ID mtu 1420 # v4.15.5
else
cmd ifconfig $VPN_ID mtu $MTU # v4.15.5 v1.02
sed -i 's/^MTU/#MTU/' ${CONFIG_DIR}${VPN_ID}.conf
fi
TIMESTAMP=$(date +%s)
sqlite3 $SQL_DATABASE "INSERT into session values('$WG_INTERFACE','Start','$TIMESTAMP');" # v1.13
# Site-to-Site identify remote site peer
# Extract '# Cabin LAN'
if [ "$(sqlite3 $SQL_DATABASE "SELECT auto FROM servers WHERE peer='$WG_INTERFACE';")" == "S" ];then # v4.15.1
SITE2SITE_PEER=$(awk '/^#.*LAN/ {print $2}' ${CONFIG_DIR}${WG_INTERFACE}.conf ) # v4.15.1
sqlite3 $SQL_DATABASE "INSERT into traffic values('$SITE2SITE_PEER','$TIMESTAMP','*','*','*','*');" # v4.15.1
# What if the Remote Site-to-Site Peer acquires a new IP address after the initial handshake?
# (NOTE: Mullvad Endpoints seem to be IPv4 address rather than DDNS name)
# Need a monitor that refreshes the Remote DDNS IP if the handshake is dormant.
# Use
# "wg show WG_INTERFACE latest-handshakes"
# if [ latest handshake is > than say 135 ]; then force resolution of DDNS name to it's current IP Address
# "wg set WG_INTERFACE peer $PUB_KEY endpoint SiteA_DDNS:51820"
# fi
#
# see /jffs/addons/wireguard/wg_ChkEndpointDDNS.sh
ENDPOINTS=$(awk '/^Endpoint/ {print $3}' ${CONFIG_DIR}${WG_INTERFACE}.conf | tr '\n' ' ') # v4.15.8
DDNS_FOUND=0
for ENDPOINT in $ENDPOINTS
do
[ "$(echo "$ENDPOINT" | tr ":" " " | wc -w)" -gt 2 ] && continue # v4.15.8
# So not IPv6...
DDNS=$(echo "$ENDPOINT" | awk -F ":" '{print $1}') # v4.15.8
if [ -z "$(echo "$DDNS" | Is_IPv4_CIDR)" ] && [ -z "$(echo "$DDNS" | Is_IPv4)" ];then # v4.15.8
DDNS_FOUND=1 # NOT IPv4 so must be DDNS so monitor it # v4.15.8
break
fi
done
if [ $DDNS_FOUND -eq 1 ];then # v4.15.3
cru a WireGuard_ChkDDNS${WG_INTERFACE} "*/5 * * * * ${INSTALL_DIR}wg_ChkEndpointDDNS.sh $WG_INTERFACE" # v4.15.3
logger -t "wg_manager-server${VPN_NAME}" "Endpoint DDNS refresh monitor started - cru #WireGuard_ChkDDNS${WG_INTERFACE}#."
fi
fi
cmd ifconfig $VPN_ID txqueuelen 1000
Firewall_delete
if [ "$EXECUTE" != "wg-quick" ];then
cmd ip route add default dev $VPN_ID table 2${VPN_NUM}"0" # v4.03
# shellcheck disable=SC2046
cmd ip rule add fwmark $(printf "%#07x\n" "2${VPN_NUM}0") table 2${VPN_NUM}"0" prio 98${VPN_NUM}0 # v4.03
if [ "$USE_IPV6" == "Y" ];then # v4.05
cmd ip -6 route add default dev $VPN_ID table 2${VPN_NUM}"0" # v4.03
# shellcheck disable=SC2046
cmd ip -6 rule add fwmark $(printf "%#07x\n" "2${VPN_NUM}0") table 2${VPN_NUM}"0" prio 98${VPN_NUM}0 # v4.03
fi
#Manage_Passthru "add"
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 'server'"
cmd iptables -t mangle -I FORWARD -i $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'server'"
else
logger -t "wg_manager-${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 'server'"
cmd iptables -t mangle -I PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'server'"
else
logger -t "wg_manager-${MODE}${VPN_NAME}" "'NOSETXMARK' directive found ('WireguardVPN.conf') -t mangle FORWARD/PREROUTING chain'-j MARK --set-xmark 0x01/0x7' NOT configured" # v4.12
fi
cmd iptables -I INPUT -p udp --dport $wgport -j ACCEPT -m comment --comment "WireGuard 'server'"
cmd iptables -I INPUT -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'"
#cmd iptables -I FORWARD -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'"
if [ -z "$(iptables-save | grep WGM_ACL)" ];then # v4.16
cmd iptables -N WGM_ACL_F 2>/dev/null # v4.16
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
fi
POS=$(($(iptables -nvL FORWARD --line -t filter | grep -Em 1 ".*WGM_ACL_F" | cut -d' ' -f1)+1)) # v4.16.3
cmd iptables -I FORWARD $POS -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" # # v4.16.3 v4.15.10 @ZebMcKayhan
cmd iptables -I FORWARD $POS -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "LAN to WireGuard 'server clients'" # # v4.16.3 v4.14.1
cmd iptables -I OUTPUT -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'"
cmd iptables -t nat -I PREROUTING -p udp --dport $wgport -j ACCEPT -m comment --comment "WireGuard 'server'"
for THIS in ${SUBNET//,/ } # v4.16.4 v4.15.10
do
if [ -z "$(echo "$THIS" | grep -F ":" )" ];then # v4.15.10
cmd iptables -t nat -I POSTROUTING -s $THIS -o br0 -j MASQUERADE -m comment --comment "WireGuard 'server clients to LAN'" # v4.14.2
else
cmd ip6tables -t nat -I POSTROUTING -s $THIS -o br0 -j MASQUERADE -m comment --comment "WireGuard 'server clients to LAN'" # v4.15.11 @ZebMcKayhan
fi
done
if [ "$USE_IPV6" == "Y" ];then # v4.05
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 'server'"
cmd ip6tables -t mangle -I FORWARD -i $VPN_ID -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu -m comment --comment "WireGuard 'server'"
else
logger -t "wg_manager-${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 'server'"
cmd ip6tables -t mangle -I PREROUTING -i $VPN_ID -j MARK --set-xmark 0x01/0x7 -m comment --comment "WireGuard 'server'"
else
logger -t "wg_manager-${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
cmd ip6tables -I INPUT -p udp --dport $wgport -j ACCEPT -m comment --comment "WireGuard 'server'"
cmd ip6tables -I INPUT -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'"
#cmd ip6tables -I FORWARD -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'"
if [ -z "$(iptables-save | grep WGM_ACL)" ];then # v4.16.3
cmd ip6tables -N WGM_ACL_F 2>/dev/null # v4.16.3
cmd ip6tables -I FORWARD "$(($(iptables -nvL FORWARD --line -t filter | grep -Em 1 ".*\*.*\*.*state.*ESTABLISHED" | cut -d' ' -f1)+1))" -i wg2+ -j WGM_ACL_F -m comment --comment "Wireguard ACL" # v4.16.3
fi
POS=$(($(ip6tables -nvL FORWARD --line -t filter | grep -Em 1 ".*WGM_ACL_F" | cut -d' ' -f1)+1)) # v4.16.3
cmd ip6tables -I FORWARD $POS -i $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'" # # v4.16.3 v4.15.10 @ZebMcKayhan
cmd ip6tables -I FORWARD $POS -i br0 -o $VPN_ID -j ACCEPT -m comment --comment "LAN to WireGuard 'server clients'" # v# v4.16.3 4.14.1
cmd ip6tables -I OUTPUT -o $VPN_ID -j ACCEPT -m comment --comment "WireGuard 'server'"
fi
fi
for ALLOWIP in $(awk '/^AllowedIPs/ {$1="";$2="";print $0}' ${CONFIG_DIR}${VPN_ID}.conf | tr ',' ' ') # v4.14.1
do
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$ALLOWIP" | grep -F ":")" ];then
cmd ip -6 route add $ALLOWIP dev $VPN_ID
else
if [ -n "$(echo "$ALLOWIP" | Is_IPv4_CIDR)" ] || [ -n "$(echo "$ALLOWIP" | Is_IPv4)" ];then
#[ "$(echo "$ALLOWIP" | grep -o "^.*\.")" != "$(echo "$SUBNET" | grep -o "^.*\.")" ] && cmd ip route add $ALLOWIP dev $VPN_ID # v4.15.3
cmd ip route add $ALLOWIP dev $VPN_ID # v4.15.5 v4.15.3
fi
fi
done
# User Exit @ZebMcKayhan
if [ -f ${INSTALL_DIR}Scripts/${VPN_ID}-up.sh ];then
logger -t "wg_manager-server${VPN_NAME}" "Executing ${VPN_ID}-up.sh"
[ "$SHOWCMDS" == "Y" ] && echo -e "[+] ${VPN_ID}-up.sh"
sh ${INSTALL_DIR}Scripts/${VPN_ID}-up.sh
fi
# v4.14 Process 'PostUp' commands
Process_Pre_Post_Commands "PostUp" # v4.14.1
echo -en ${cRESET}$cBGRE"\t"
logger -st "wg_manager-server${VPN_NAME}" "Initialisation complete."
# If there are Passthru devices, ask if the 'client' Peers should be restarted if they are UP?
PASSTHRU_CLIENTS=$(sqlite3 $SQL_DATABASE "SELECT client FROM passthru where server='$VPN_ID';" | sort | uniq | tr '\n' ' ')
if [ -n "$PASSTHRU_CLIENTS" ];then
for WG_INTERFACE in $PASSTHRU_CLIENTS
do
# Need to Restart the 'client' Peer if it is UP
if [ -n "$(wg show interfaces | grep "$WG_INTERFACE")" ];then
[ "$(sqlite3 $SQL_DATABASE "SELECT auto FROM clients WHERE peer='$WG_INTERFACE';")" == "P" ] && POLICY="policy" || POLICY=
CMD="restart"
echo -e $cBWHT"\a\n\tWireGuard 'client' Peer needs to be ${CMD}ed to refresh Passthru rules"
echo -e $cBWHT"\tPress$cBRED y$cRESET to$cBRED $CMD 'client' Peer (${cRESET}${WG_INTERFACE}$cBRED) or press$cBGRE [Enter] to SKIP."
read -r "ANS"
if [ "$ANS" == "y" ];then
${INSTALL_DIR}wg_client $WG_INTERFACE "disable" $POLICY
${INSTALL_DIR}wg_client $WG_INTERFACE $POLICY
fi
fi
done
fi
echo -e $cRESET
else
# v4.14 Process 'PreDown' commands
Process_Pre_Post_Commands "PreDown" # v4.14.1
cru d WireGuard_ChkDDNS${WG_INTERFACE} # v4.18.8
for ALLOWIP in $(awk '/^AllowedIPs/ {$1="";$2="";print $0}' ${CONFIG_DIR}${VPN_ID}.conf | tr ',' ' ') # v4.14.1
do
if [ "$USE_IPV6" == "Y" ] && [ -n "$(echo "$ALLOWIP" | grep -F ":")" ];then
ip -6 route del $ALLOWIP dev $VPN_ID 2>/dev/null
else
if [ -n "$(echo "$ALLOWIP" | Is_IPv4_CIDR)" ] || [ -n "$(echo "$ALLOWIP" | Is_IPv4)" ];then
ip route del $ALLOWIP dev $VPN_ID 2>/dev/null
fi
fi
done
ip link del dev $VPN_ID 2>/dev/null
TIMESTAMP=$(date +%s)
sqlite3 $SQL_DATABASE "INSERT into session values('$WG_INTERFACE','End','$TIMESTAMP');" # v1.13
# Site-to-Site identify remote site peer
# Extract '# Cabin LAN'
if [ "$(sqlite3 $SQL_DATABASE "SELECT auto FROM servers WHERE peer='$WG_INTERFACE';")" == "S" ];then # v4.15.1
SITE2SITE_PEER=$(awk '/^#.*LAN/ {print $2}' ${CONFIG_DIR}${WG_INTERFACE}.conf ) # v4.15.1
#sqlite3 $SQL_DATABASE "INSERT into traffic values('$SITE2SITE_PEER','$TIMESTAMP','*','*','*','*');" # v4.15.9 v4.15.1
fi
Firewall_delete
#Manage_Passthru "del"
ip route flush table 2${VPN_NUM}"0" 2>/dev/null # v4.03
ip rule del prio 98${VPN_NUM}0 2>/dev/null # v4.03
ip route flush cache 2>/dev/null # v4.03
ip -6 route flush table 2${VPN_NUM}"0" 2>/dev/null # v4.03
ip -6 rule del prio 98${VPN_NUM}0 2>/dev/null # v4.03
ip -6 route flush cache 2>/dev/null # v4.03
# User Exit @ZebMcKayhan
if [ -f ${INSTALL_DIR}Scripts/${VPN_ID}-down.sh ];then
logger -t "wg_manager-server${VPN_NAME}" "Executing ${VPN_ID}-down.sh"
[ "$SHOWCMDS" == "Y" ] && echo -e "[+] ${VPN_ID}-down.sh"
sh ${INSTALL_DIR}Scripts/${VPN_ID}-down.sh
fi
# v4.14 Process 'PostDown' commands
Process_Pre_Post_Commands "PostDown" # v4.14.1
rm /tmp/$VPN_ID.* 2>/dev/null # v4.16.3
logger -t "wg_manager-server${VPN_NAME}" "WireGuard® VPN 'server' Peer ($VPN_ID) on" $ADDRESS_TXT "Terminated" # v4.16.1
echo -e ${cRESET}$cBGRE"\twg_manager-server${VPN_NAME}: WireGuard® VPN ${IPV6_TXT}'Server' Peer (${cBMAG}$VPN_ID$cBGRE) on $ADDRESS_TXT (${cBMAG}${DESC}${cBGRE}) ${cBRED}Terminated\n"$cRESET # 4.16.1
fi
#) 2>&1 | logger -t $(basename $0)"[$$_***DEBUG]"