Revert "init: check MODE_HTTP/MODE_HTTPS to minimize nfqws processes"

This reverts commit e6303e988e.
This commit is contained in:
bol-van 2021-12-10 20:14:19 +03:00
parent e6303e988e
commit 79a984b607
3 changed files with 341 additions and 581 deletions

View File

@ -1,130 +1,60 @@
# init script functions library for desktop linux systems
. /lib/functions/network.sh
[ -n "$ZAPRET_BASE" ] || ZAPRET_BASE=/opt/zapret
# SHOULD EDIT config
. "$ZAPRET_BASE/config"
exists()
{
which "$1" >/dev/null 2>/dev/null
}
existf()
{
type "$1" >/dev/null 2>/dev/null
}
is_linked_to_busybox()
{
local IFS F P
IFS=:
for path in $PATH; do
F=$path/$1
P="$(readlink $F)"
if [ -z "$P" ] && [ -x $F ] && [ ! -L $F ]; then return 1; fi
[ "${P%busybox*}" != "$P" ] && return
done
}
user_exists()
{
id -u $1 >/dev/null 2>/dev/null
}
useradd_compat()
{
# $1 - username
# skip for readonly systems
[ -w "/etc" ] && {
if exists useradd ; then
useradd --no-create-home --system --shell /bin/false $1
elif is_linked_to_busybox adduser ; then
# busybox has special adduser syntax
adduser -S -H -D $1
elif exists adduser; then
adduser --no-create-home --system --disabled-login $1
fi
}
user_exists $1
}
prepare_user()
{
# $WS_USER is required to prevent redirection of the traffic originating from TPWS itself
# otherwise infinite loop will occur
# also its good idea not to run tpws as root
user_exists $WS_USER || {
# fallback to daemon if we cant add WS_USER
useradd_compat $WS_USER || {
for user in daemon nobody; do
user_exists $user && {
WS_USER=$user
return 0
}
done
return 1
}
}
}
# this complex user selection allows to survive in any locked/readonly/minimalistic environment
[ -n "$WS_USER" ] || WS_USER=tpws
if prepare_user; then
USEROPT="--user=$WS_USER"
else
WS_USER=1
USEROPT="--uid $WS_USER:$WS_USER"
fi
PIDDIR=/var/run
IPSET_CR="$ZAPRET_BASE/ipset/create_ipset.sh"
[ -n "$QNUM" ] || QNUM=200
[ -n "$NFQWS" ] || NFQWS="$ZAPRET_BASE/nfq/nfqws"
NFQWS_OPT_BASE="$USEROPT --dpi-desync-fwmark=$DESYNC_MARK"
NFQWS_OPT_DESYNC_HTTP="${NFQWS_OPT_DESYNC_HTTP:-$NFQWS_OPT_DESYNC}"
NFQWS_OPT_DESYNC_HTTPS="${NFQWS_OPT_DESYNC_HTTPS:-$NFQWS_OPT_DESYNC}"
NFQWS_OPT_DESYNC_HTTP6="${NFQWS_OPT_DESYNC_HTTP6:-$NFQWS_OPT_DESYNC_HTTP}"
NFQWS_OPT_DESYNC_HTTPS6="${NFQWS_OPT_DESYNC_HTTPS6:-$NFQWS_OPT_DESYNC_HTTPS}"
[ -n "$TPPORT" ] || TPPORT=988
[ -n "$TPWS" ] || TPWS="$ZAPRET_BASE/tpws/tpws"
[ -n "$WS_USER" ] || WS_USER=daemon
TPWS_LOCALHOST4=127.0.0.127
HOSTLIST="$ZAPRET_BASE/ipset/zapret-hosts.txt.gz"
[ -f "$HOSTLIST" ] || HOSTLIST="$ZAPRET_BASE/ipset/zapret-hosts.txt"
[ -f "$HOSTLIST" ] || HOSTLIST="$ZAPRET_BASE/ipset/zapret-hosts-user.txt"
TPWS_OPT_BASE="$USEROPT"
TPWS_OPT_BASE4="--bind-addr=$TPWS_LOCALHOST4"
TPWS_OPT_BASE6="--bind-addr=::1"
TPWS_WAIT="--bind-wait-ifup=30 --bind-wait-ip=30"
TPWS_WAIT_SOCKS6="$TPWS_WAIT --bind-wait-ip-linklocal=30"
# first wait for lan to ifup, then wait for bind-wait-ip-linklocal seconds for link local address and bind-wait-ip for any ipv6 as the worst case
TPWS_OPT_BASE6_PRE="--bind-linklocal=prefer $TPWS_WAIT --bind-wait-ip-linklocal=3"
[ -n "$DESYNC_MARK" ] || DESYNC_MARK=0x40000000
[ -n "$OPENWRT_LAN" ] || OPENWRT_LAN=lan
# max wait time for the link local ipv6 on the LAN interface
LINKLOCAL_WAIT_SEC=5
CUSTOM_SCRIPT="$ZAPRET_BASE/init.d/sysv/custom"
IPSET_CR="$ZAPRET_BASE/ipset/create_ipset.sh"
CUSTOM_SCRIPT="$ZAPRET_BASE/init.d/openwrt/custom"
[ -f "$CUSTOM_SCRIPT" ] && . "$CUSTOM_SCRIPT"
IPSET_EXCLUDE="-m set ! --match-set nozapret"
IPSET_EXCLUDE6="-m set ! --match-set nozapret6"
NFQWS_OPT_DESYNC_HTTP="${NFQWS_OPT_DESYNC_HTTP:-$NFQWS_OPT_DESYNC}"
NFQWS_OPT_DESYNC_HTTPS="${NFQWS_OPT_DESYNC_HTTPS:-$NFQWS_OPT_DESYNC}"
NFQWS_OPT_DESYNC_HTTP6="${NFQWS_OPT_DESYNC_HTTP6:-$NFQWS_OPT_DESYNC_HTTP}"
NFQWS_OPT_DESYNC_HTTPS6="${NFQWS_OPT_DESYNC_HTTPS6:-$NFQWS_OPT_DESYNC_HTTPS}"
on_off_function()
exists()
{
# $1 : function name on
# $2 : function name off
# $3 : 0 - off, 1 - on
local F="$1"
[ "$3" = "1" ] || F="$2"
shift
shift
shift
"$F" "$@"
which "$1" >/dev/null 2>/dev/null
}
existf()
{
type "$1" >/dev/null 2>/dev/null
}
# can be multiple ipv6 outgoing interfaces
# uplink from isp, tunnelbroker, vpn, ...
# want them all. who knows what's the real one that blocks sites
# dont want any manual configuration - want to do it automatically
# standard network_find_wan[6] return only the first
# we use low level function from network.sh to avoid this limitation
# it can change theoretically and stop working
network_find_wan_all()
{
__network_ifstatus "$1" "" "[@.route[@.target='0.0.0.0' && !@.table]].interface" "" 10 2>/dev/null && return
network_find_wan $1
}
network_find_wan6_all()
{
__network_ifstatus "$1" "" "[@.route[@.target='::' && !@.table]].interface" "" 10 2>/dev/null && return
network_find_wan6 $1
}
ipt()
{
iptables -C "$@" >/dev/null 2>/dev/null || iptables -I "$@"
@ -133,10 +63,6 @@ ipt_del()
{
iptables -C "$@" >/dev/null 2>/dev/null && iptables -D "$@"
}
ipt_add_del()
{
on_off_function ipt ipt_del "$@"
}
ipt6()
{
ip6tables -C "$@" >/dev/null 2>/dev/null || ip6tables -I "$@"
@ -145,10 +71,6 @@ ipt6_del()
{
ip6tables -C "$@" >/dev/null 2>/dev/null && ip6tables -D "$@"
}
ipt6_add_del()
{
on_off_function ipt6 ipt6_del "$@"
}
# there's no route_localnet for ipv6
# the best we can is to route to link local of the incoming interface
@ -158,355 +80,212 @@ ipt6_add_del()
get_ipv6_linklocal()
{
# $1 - interface name. if empty - any interface
local dev
[ -n "$1" ] && dev="dev $1"
ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope link.*$/\1/;t;d' | head -n 1
# $1 - interface name. if empty - any interface
if exists ip ; then
local dev
[ -n "$1" ] && dev="dev $1"
ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope link.*$/\1/;t;d' | head -n 1
else
ifconfig $1 | sed -re 's/^.*inet6 addr: ([^ ]*)\/[0-9]* Scope:Link.*$/\1/;t;d' | head -n 1
fi
}
get_ipv6_global()
{
# $1 - interface name. if empty - any interface
local dev
[ -n "$1" ] && dev="dev $1"
ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope global.*$/\1/;t;d' | head -n 1
# $1 - interface name. if empty - any interface
if exists ip ; then
local dev
[ -n "$1" ] && dev="dev $1"
ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope global.*$/\1/;t;d' | head -n 1
else
ifconfig $1 | sed -re 's/^.*inet6 addr: ([^ ]*)\/[0-9]* Scope:Global.*$/\1/;t;d' | head -n 1
fi
}
iface_is_up()
{
# $1 - interface name
[ -f /sys/class/net/$1/operstate ] || return
local state
read state </sys/class/net/$1/operstate
[ "$state" != "down" ]
}
wait_ifup()
{
# $1 - interface name
local ct=0
while
iface_is_up $1 && return
[ "$ct" -ge "$IFUP_WAIT_SEC" ] && break
echo waiting for ifup of $1 for another $(($IFUP_WAIT_SEC - $ct)) seconds ...
ct=$(($ct+1))
sleep 1
do :; done
false
}
dnat6_target()
{
# $1 - lan network name
# $2 - var to store target ip6
# get target ip address for DNAT. prefer link locals
# tpws should be as inaccessible from outside as possible
# link local address can appear not immediately after ifup
# DNAT6_TARGET=- means attempt was made but address was not found (to avoid multiple re-attempts)
# $1 - lan network name
# $2 - var to store target ip6
# get target ip address for DNAT. prefer link locals
# tpws should be as inaccessible from outside as possible
# link local address can appear not immediately after ifup
# DNAT6_TARGET=- means attempt was made but address was not found (to avoid multiple re-attempts)
local DNAT6_TARGET DVAR=DNAT6_TARGET_$1
DVAR=$(echo $DVAR | sed 's/[^a-zA-Z0-9_]/_/g')
eval DNAT6_TARGET="\$$DVAR"
[ -n "$2" ] && eval $2=''
[ -n "$DNAT6_TARGET" ] || {
local ct=0
while
DNAT6_TARGET=$(get_ipv6_linklocal $1)
[ -n "$DNAT6_TARGET" ] && break
[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break
echo $1: waiting for the link local for another $(($LINKLOCAL_WAIT_SEC - $ct)) seconds ...
ct=$(($ct+1))
sleep 1
do :; done
local DNAT6_TARGET DVAR=DNAT6_TARGET_$1
DVAR=$(echo $DVAR | sed 's/[^a-zA-Z0-9_]/_/g')
eval DNAT6_TARGET="\$$DVAR"
[ -n "$2" ] && eval $2=''
[ -n "$DNAT6_TARGET" ] || {
# no reason to query if its down
network_is_up $1 || return
[ -n "$DNAT6_TARGET" ] || {
echo $1: no link local. getting global
DNAT6_TARGET=$(get_ipv6_global $1)
[ -n "$DNAT6_TARGET" ] || {
echo $1: could not get any address
DNAT6_TARGET=-
}
}
eval $DVAR="$DNAT6_TARGET"
}
[ -n "$2" ] && eval $2="$DNAT6_TARGET"
}
local DEVICE
network_get_device DEVICE $1
prepare_tpws_fw4()
{
# otherwise linux kernel will treat 127.0.0.0/8 as "martian" ip and refuse routing to it
# NOTE : kernels <3.6 do not have this feature. consider upgrading or change DNAT to REDIRECT and do not bind to 127.0.0.0/8
[ -n "$IFACE_LAN" ] && {
iptables -N input_rule_zapret 2>/dev/null
iptables -F input_rule_zapret
iptables -A input_rule_zapret -d $TPWS_LOCALHOST4 -j RETURN
iptables -A input_rule_zapret -d 127.0.0.0/8 -j DROP
for lan in $IFACE_LAN ; do
ipt INPUT -i $lan -j input_rule_zapret
sysctl -q -w net.ipv4.conf.$lan.route_localnet=1
done
}
}
unprepare_tpws_fw4()
{
[ -n "$IFACE_LAN" ] && {
for lan in $IFACE_LAN ; do
ipt_del INPUT -i $lan -j input_rule_zapret
sysctl -q -w net.ipv4.conf.$lan.route_localnet=0
done
iptables -F input_rule_zapret 2>/dev/null
iptables -X input_rule_zapret 2>/dev/null
}
}
unprepare_tpws_fw()
{
unprepare_tpws_fw4
}
local ct=0
while
DNAT6_TARGET=$(get_ipv6_linklocal $DEVICE)
[ -n "$DNAT6_TARGET" ] && break
[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break
echo $DEVICE: waiting for the link local for another $(($LINKLOCAL_WAIT_SEC - $ct)) seconds ...
ct=$(($ct+1))
sleep 1
do :; done
print_op()
{
if [ "$1" = "1" ]; then
echo "Adding ip$4tables rule for $3 : $2"
else
echo "Deleting ip$4tables rule for $3 : $2"
fi
}
fw_tpws4()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv4
# $3 - tpws port
[ "$DISABLE_IPV4" = "1" ] || {
[ "$1" = 1 ] && prepare_tpws_fw4
print_op $1 "$2" "tpws (port $3)"
for lan in $IFACE_LAN ; do
ipt_add_del $1 PREROUTING -t nat -i $lan -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3
done
if [ -n "$IFACE_WAN" ]; then
for wan in $IFACE_WAN; do
ipt_add_del $1 OUTPUT -t nat -o $wan -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3
done
else
ipt_add_del $1 OUTPUT -t nat -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3
fi
}
}
fw_tpws6()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv6
# $3 - tpws port
[ "$DISABLE_IPV6" = "1" ] || {
print_op $1 "$2" "tpws (port $3)" 6
local DNAT6
for lan in $IFACE_LAN ; do
dnat6_target $lan DNAT6
[ "$DNAT6" != "-" ] && ipt6_add_del $1 PREROUTING -t nat -i $lan -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [$DNAT6]:$3
done
if [ -n "$IFACE_WAN" ]; then
for wan in $IFACE_WAN; do
ipt6_add_del $1 OUTPUT -t nat -o $wan -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [::1]:$3
done
else
ipt6_add_del $1 OUTPUT -t nat -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [::1]:$3
fi
}
}
fw_tpws()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv4
# $3 - iptable filter for ipv6
# $4 - tpws port
fw_tpws4 $1 "$2" $4
fw_tpws6 $1 "$3" $4
[ -n "$DNAT6_TARGET" ] || {
echo $DEVICE: no link local. getting global
DNAT6_TARGET=$(get_ipv6_global $DEVICE)
[ -n "$DNAT6_TARGET" ] || {
echo $DEVICE: could not get any address
DNAT6_TARGET=-
}
}
eval $DVAR="$DNAT6_TARGET"
}
[ -n "$2" ] && eval $2="$DNAT6_TARGET"
}
fw_nfqws_pre4()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv4
# $3 - queue number
[ "$DISABLE_IPV4" = "1" ] || {
print_op $1 "$2" "nfqws prerouting (qnum $3)"
if [ -n "$IFACE_WAN" ]; then
for wan in $IFACE_WAN; do
ipt_add_del $1 PREROUTING -t mangle -i $wan -p tcp $2 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $3 --queue-bypass
done
else
ipt_add_del $1 PREROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $3 --queue-bypass
fi
}
# $1 - filter ipv4
# $2 - queue number
local DEVICE wan_iface
[ "$DISABLE_IPV4" = "1" ] || {
network_find_wan_all wan_iface
for ext_iface in $wan_iface; do
network_get_device DEVICE $ext_iface
ipt PREROUTING -t mangle -i $DEVICE -p tcp $1 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $2 --queue-bypass
done
}
}
fw_nfqws_pre6()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv6
# $3 - queue number
[ "$DISABLE_IPV6" = "1" ] || {
print_op $1 "$2" "nfqws prerouting (qnum $3)" 6
if [ -n "$IFACE_WAN" ]; then
for wan in $IFACE_WAN; do
ipt6_add_del $1 PREROUTING -t mangle -i $wan -p tcp $2 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $3 --queue-bypass
done
else
ipt6_add_del $1 PREROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $3 --queue-bypass
fi
}
# $1 - filter ipv6
# $2 - queue number
local DEVICE wan_iface
[ "$DISABLE_IPV6" = "1" ] || {
network_find_wan6_all wan_iface
for ext_iface in $wan_iface; do
network_get_device DEVICE $ext_iface
ipt6 PREROUTING -t mangle -i $DEVICE -p tcp $1 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $2 --queue-bypass
done
}
}
fw_nfqws_pre()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv4
# $3 - iptable filter for ipv6
# $4 - queue number
fw_nfqws_pre4 $1 "$2" $4
fw_nfqws_pre6 $1 "$3" $4
# $1 - filter ipv4
# $2 - filter ipv6
# $3 - queue number
fw_nfqws_pre4 "$1" $3
fw_nfqws_pre6 "$2" $3
}
fw_nfqws_post4()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv4
# $3 - queue number
[ "$DISABLE_IPV4" = "1" ] || {
print_op $1 "$2" "nfqws postrouting (qnum $3)"
if [ -n "$IFACE_WAN" ]; then
for wan in $IFACE_WAN; do
ipt_add_del $1 POSTROUTING -t mangle -o $wan -p tcp $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass
done
else
ipt_add_del $1 POSTROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass
fi
}
# $1 - filter ipv4
# $2 - queue number
local DEVICE wan_iface
[ "$DISABLE_IPV4" = "1" ] || {
network_find_wan_all wan_iface
for ext_iface in $wan_iface; do
network_get_device DEVICE $ext_iface
ipt POSTROUTING -t mangle -o $DEVICE -p tcp $1 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $2 --queue-bypass
done
}
}
fw_nfqws_post6()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv6
# $3 - queue number
[ "$DISABLE_IPV6" = "1" ] || {
print_op $1 "$2" "nfqws postrouting (qnum $3)" 6
if [ -n "$IFACE_WAN" ]; then
for wan in $IFACE_WAN; do
ipt6_add_del $1 POSTROUTING -t mangle -o $wan -p tcp $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass
done
else
ipt6_add_del $1 POSTROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass
fi
}
# $1 - filter ipv6
# $2 - queue number
local DEVICE wan_iface
[ "$DISABLE_IPV6" = "1" ] || {
network_find_wan6_all wan_iface
for ext_iface in $wan_iface; do
network_get_device DEVICE $ext_iface
ipt6 POSTROUTING -t mangle -o $DEVICE -p tcp $1 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $2 --queue-bypass
done
}
}
fw_nfqws_post()
{
# $1 - 1 - add, 0 - del
# $2 - iptable filter for ipv4
# $3 - iptable filter for ipv6
# $4 - queue number
fw_nfqws_post4 $1 "$2" $4
fw_nfqws_post6 $1 "$3" $4
# $1 - filter ipv4
# $2 - filter ipv6
# $3 - queue number
fw_nfqws_post4 "$1" $3
fw_nfqws_post6 "$2" $3
}
run_daemon()
IPT_OWNER="-m owner ! --uid-owner $WS_USER"
fw_tpws4()
{
# $1 - daemon number : 1,2,3,...
# $2 - daemon
# $3 - daemon args
# use $PIDDIR/$DAEMONBASE$1.pid as pidfile
# $1 - filter ipv6
# $2 - tpws port
local DAEMONBASE=$(basename $2)
local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
echo "Starting daemon $1: $2 $3"
if exists start-stop-daemon ; then
start-stop-daemon -S -p "$PIDFILE" -m -b -x "$2" -- $3
else
if [ -f "$PIDFILE" ] && pgrep -F "$PIDFILE" "$DAEMONBASE" >/dev/null; then
echo already running
else
"$2" $3 >/dev/null 2>/dev/null &
PID=$!
if [ -n "$PID" ]; then
echo $PID >$PIDFILE
else
echo could not start daemon $1 : $2 $3
false
fi
fi
fi
local DEVICE wan_iface
[ "$DISABLE_IPV4" = "1" ] || {
network_find_wan_all wan_iface
for ext_iface in $wan_iface; do
network_get_device DEVICE $ext_iface
ipt OUTPUT -t nat -o $DEVICE $IPT_OWNER -p tcp $1 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$2
done
# allow localnet route only to special tpws IP
iptables -N input_rule_zapret 2>/dev/null
ipt input_rule_zapret -d 127.0.0.0/8 -j DROP
ipt input_rule_zapret -d $TPWS_LOCALHOST4 -j RETURN
for lan in $OPENWRT_LAN; do
network_get_device DEVICE $lan
[ -n "$DEVICE" ] || continue
ipt prerouting_rule -t nat -i $DEVICE -p tcp $1 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$2
ipt input_rule -i $DEVICE -j input_rule_zapret
sysctl -qw net.ipv4.conf.$DEVICE.route_localnet=1
done
}
}
stop_daemon()
fw_tpws6()
{
# $1 - daemon number : 1,2,3,...
# $2 - daemon
# use $PIDDIR/$DAEMONBASE$1.pid as pidfile
local DAEMONBASE=$(basename $2)
local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
echo "Stopping daemon $1: $2"
if exists start-stop-daemon ; then
start-stop-daemon -K -p "$PIDFILE" -x "$2"
else
if [ -f "$PIDFILE" ]; then
read PID <"$PIDFILE"
kill $PID
rm -f "$PIDFILE"
else
echo no pidfile : $PIDFILE
fi
fi
# $1 - filter ipv6
# $2 - tpws port
local DEVICE wan_iface DNAT6
[ "$DISABLE_IPV6" = "1" ] || {
network_find_wan6_all wan_iface
for ext_iface in $wan_iface; do
network_get_device DEVICE $ext_iface
ipt6 OUTPUT -t nat -o $DEVICE $IPT_OWNER -p tcp $1 $IPSET_EXCLUDE6 dst -j DNAT --to [::1]:$2
done
for lan in $OPENWRT_LAN; do
network_get_device DEVICE $lan
[ -n "$DEVICE" ] || continue
dnat6_target $lan DNAT6
[ "$DNAT6" != '-' ] && ipt6 PREROUTING -t nat -i $DEVICE -p tcp $1 $IPSET_EXCLUDE6 dst -j DNAT --to [$DNAT6]:$2
done
}
}
do_daemon()
fw_tpws()
{
# $1 - 1 - run, 0 - stop
on_off_function run_daemon stop_daemon "$@"
# $1 - filter ipv4
# $2 - filter ipv6
# $3 - tpws port
fw_tpws4 "$1" $3
fw_tpws6 "$2" $3
}
do_tpws()
{
# $1 : 1 - run, 0 - stop
# $2 : daemon number
# $3 : daemon args
[ "$DISABLE_IPV4" = "1" ] && [ "$DISABLE_IPV6" = "1" ] && return 0
local OPT="$TPWS_OPT_BASE"
[ "$DISABLE_IPV4" = "1" ] || OPT="$OPT $TPWS_OPT_BASE4"
[ "$DISABLE_IPV6" = "1" ] || {
OPT="$OPT $TPWS_OPT_BASE6"
for lan in $IFACE_LAN; do
OPT="$OPT --bind-iface6=$lan $TPWS_OPT_BASE6_PRE"
done
}
do_daemon $1 $2 "$TPWS" "$OPT $3"
}
do_tpws_socks()
{
# $1 : 1 - run, 0 - stop
# $2 : daemon number
# $3 : daemon args
[ "$DISABLE_IPV4" = "1" ] && [ "$DISABLE_IPV6" = "1" ] && return 0
local opt="$TPWS_OPT_BASE --socks"
tpws_apply_socks_binds opt
do_daemon $1 $2 "$TPWS" "$opt $3"
}
do_nfqws()
{
# $1 : 1 - run, 0 - stop
# $2 : daemon number
# $3 : daemon args
do_daemon $1 $2 "$NFQWS" "$NFQWS_OPT_BASE $3"
}
filter_apply_port_target()
{
# $1 - var name of iptables filter
@ -522,7 +301,6 @@ filter_apply_port_target()
fi
eval $1="\"\$$1 $f\""
}
filter_apply_ipset_target4()
{
# $1 - var name of ipv4 iptables filter
@ -544,11 +322,6 @@ filter_apply_ipset_target()
filter_apply_ipset_target4 $1
filter_apply_ipset_target6 $2
}
filter_apply_hostlist_target()
{
# $1 - var name of tpws or nfqws params
[ "$MODE_FILTER" = "hostlist" ] && eval $1="\"\$$1 --hostlist=$HOSTLIST\""
}
get_nfqws_qnums()
{
@ -556,7 +329,7 @@ get_nfqws_qnums()
# $2 - var name for ipv4 https
# $3 - var name for ipv6 http
# $4 - var name for ipv6 https
local _qn _qns _qn6 _qns6
local _qn=x _qns=x _qn6=x _qns6=x
[ "$DISABLE_IPV4" = "1" ] || {
_qn=$QNUM
@ -580,49 +353,99 @@ get_nfqws_qnums()
}
[ "$NFQWS_OPT_DESYNC_HTTPS6" = "$NFQWS_OPT_DESYNC_HTTP6" ] && _qns6=$_qn6;
}
[ "$MODE_HTTP" = 1 ] && {
eval $1=$_qn
eval $3=$_qn6
}
[ "$MODE_HTTPS" = 1 ] && {
eval $2=$_qns
eval $4=$_qns6
}
eval $1=$_qn
eval $2=$_qns
eval $3=$_qn6
eval $4=$_qns6
}
tpws_apply_socks_binds()
{
local o
[ "$DISABLE_IPV4" = "1" ] || o="--bind-addr=127.0.0.1"
[ "$DISABLE_IPV6" = "1" ] || o="$o --bind-addr=::1"
for lan in $IFACE_LAN; do
[ "$DISABLE_IPV4" = "1" ] || o="$o --bind-iface4=$lan $TPWS_WAIT"
[ "$DISABLE_IPV6" = "1" ] || o="$o --bind-iface6=$lan --bind-linklocal=unwanted $TPWS_WAIT_SOCKS6"
done
eval $1="\"\$$1 $o\""
}
create_ipset()
{
echo "Creating ipset"
"$IPSET_CR" "$@"
echo "Creating ipset"
"$IPSET_CR" "$@"
}
zapret_do_firewall()
is_flow_offload_avail()
{
# $1 - 1 - add, 0 - del
# $1 = '' for ipv4, '6' for ipv6
grep -q FLOWOFFLOAD /proc/net/ip$1_tables_targets
}
list_nfqws_rules()
{
# $1 = '' for ipv4, '6' for ipv6
ip$1tables -S POSTROUTING -t mangle | \
grep -E "NFQUEUE --queue-num $QNUM --queue-bypass|NFQUEUE --queue-num $(($QNUM+1)) --queue-bypass|NFQUEUE --queue-num $(($QNUM+2)) --queue-bypass|NFQUEUE --queue-num $(($QNUM+3)) --queue-bypass" | \
sed -re 's/^-A POSTROUTING (.*) -j NFQUEUE.*$/\1/' -e "s/-m mark ! --mark $DESYNC_MARK\/$DESYNC_MARK//"
}
reverse_nfqws_rule()
{
sed -e 's/-o /-i /' -e 's/--dport /--sport /' -e 's/--dports /--sports /' -e 's/ dst$/ src/' -e 's/ dst / src /'
}
apply_flow_offloading_enable_rule()
{
# $1 = '' for ipv4, '6' for ipv6
local i off='-j FLOWOFFLOAD'
[ "$FLOWOFFLOAD" = "hardware" ] && off="$off --hw"
i="forwarding_rule_zapret -m comment --comment zapret_traffic_offloading_enable -m conntrack --ctstate RELATED,ESTABLISHED $off"
echo enabling ipv${1:-4} flow offloading : $i
ip$1tables -A $i
}
apply_flow_offloading_exempt_rule()
{
# $1 = '' for ipv4, '6' for ipv6
local i v
v=$1
shift
i="forwarding_rule_zapret $@ -m comment --comment zapret_traffic_offloading_exemption -j RETURN"
echo applying ipv${v:-4} flow offloading exemption : $i
ip${v}tables -A $i
}
flow_offloading_exempt_v()
{
# $1 = '' for ipv4, '6' for ipv6
is_flow_offload_avail $1 || return 0
ipt$1_del forwarding_rule -j forwarding_rule_zapret
ip$1tables -F forwarding_rule_zapret 2>/dev/null
ip$1tables -X forwarding_rule_zapret 2>/dev/null
[ "$FLOWOFFLOAD" = 'software' -o "$FLOWOFFLOAD" = 'hardware' ] && {
ip$1tables -N forwarding_rule_zapret
list_nfqws_rules $1 |
while read rule; do
apply_flow_offloading_exempt_rule "$1" $rule
done
list_nfqws_rules $1 | grep -v "connbytes" | reverse_nfqws_rule |
while read rule; do
apply_flow_offloading_exempt_rule "$1" $rule
done
apply_flow_offloading_enable_rule $1
ipt$1 forwarding_rule -j forwarding_rule_zapret
}
return 0
}
flow_offloading_exempt()
{
[ "$DISABLE_IPV4" = "1" ] || flow_offloading_exempt_v
[ "$DISABLE_IPV6" = "1" ] || flow_offloading_exempt_v 6
}
zapret_apply_firewall()
{
local first_packet_only="-m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes 1:4"
local desync="-m mark ! --mark $DESYNC_MARK/$DESYNC_MARK"
local f4 f6 qn qns qn6 qns6
# always create ipsets. ip_exclude ipset is required
[ "$1" != "1" ] || create_ipset no-update
create_ipset no-update
case "${MODE}" in
tpws)
@ -632,123 +455,60 @@ zapret_do_firewall()
filter_apply_port_target f4
f6=$f4
filter_apply_ipset_target f4 f6
fw_tpws $1 "$f4" "$f6" $TPPORT
fw_tpws "$f4" "$f6" $TPPORT
fi
;;
nfqws)
# quite complex but we need to minimize nfqws processes to save RAM
if [ ! "$MODE_HTTP" = "1" ] && [ ! "$MODE_HTTPS" = "1" ]; then
echo both http and https are disabled. not applying redirection.
else
get_nfqws_qnums qn qns qn6 qns6
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn" ] && [ "$qn" = "$qns" ]; then
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ $qn = $qns ]; then
filter_apply_port_target f4
f4="$f4 $first_packet_only"
filter_apply_ipset_target4 f4
fw_nfqws_post4 $1 "$f4 $desync" $qn
fw_nfqws_post4 "$f4 $desync" $qn
else
if [ -n "$qn" ]; then
if [ "$MODE_HTTP" = "1" ]; then
f4="--dport 80"
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f4="$f4 $first_packet_only"
filter_apply_ipset_target4 f4
fw_nfqws_post4 $1 "$f4 $desync" $qn
fw_nfqws_post4 "$f4 $desync" $qn
fi
if [ -n "$qns" ]; then
if [ "$MODE_HTTPS" = "1" ]; then
f4="--dport 443 $first_packet_only"
filter_apply_ipset_target4 f4
fw_nfqws_post4 $1 "$f4 $desync" $qns
fw_nfqws_post4 "$f4 $desync" $qns
fi
fi
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn6" ] && [ "$qn6" = "$qns6" ]; then
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ $qn6 = $qns6 ]; then
filter_apply_port_target f6
f6="$f6 $first_packet_only"
filter_apply_ipset_target6 f6
fw_nfqws_post6 $1 "$f6 $desync" $qn6
fw_nfqws_post6 "$f6 $desync" $qn6
else
if [ -n "$qn6" ]; then
if [ "$MODE_HTTP" = "1" ]; then
f6="--dport 80"
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f6="$f6 $first_packet_only"
filter_apply_ipset_target6 f6
fw_nfqws_post6 $1 "$f6 $desync" $qn6
fw_nfqws_post6 "$f6 $desync" $qn6
fi
if [ -n "$qns6" ]; then
if [ "$MODE_HTTPS" = "1" ]; then
f6="--dport 443 $first_packet_only"
filter_apply_ipset_target6 f6
fw_nfqws_post6 $1 "$f6 $desync" $qns6
fw_nfqws_post6 "$f6 $desync" $qns6
fi
fi
fi
;;
custom)
existf zapret_custom_firewall && zapret_custom_firewall $1
;;
esac
[ "$1" = 0 ] && unprepare_tpws_fw
return 0
}
zapret_apply_firewall()
{
zapret_do_firewall 1 "$@"
}
zapret_unapply_firewall()
{
zapret_do_firewall 0 "$@"
}
zapret_do_daemons()
{
# $1 - 1 - run, 0 - stop
local opt qn qns qn6 qns6
case "${MODE}" in
tpws)
opt="--port=$TPPORT $TPWS_OPT"
filter_apply_hostlist_target opt
do_tpws $1 1 "$opt"
;;
tpws-socks)
opt="--port=$TPPORT $TPWS_OPT"
filter_apply_hostlist_target opt
do_tpws_socks $1 1 "$opt"
;;
nfqws)
get_nfqws_qnums qn qns qn6 qns6
[ -z "$qn" ] || {
opt="--qnum=$qn $NFQWS_OPT_DESYNC_HTTP"
filter_apply_hostlist_target opt
do_nfqws $1 1 "$opt"
}
[ -z "$qns" ] || [ "$qns" = "$qn" ] || {
opt="--qnum=$qns $NFQWS_OPT_DESYNC_HTTPS"
filter_apply_hostlist_target opt
do_nfqws $1 2 "$opt"
}
[ -z "$qn6" ] || [ "$qn6" = "$qn" ] || [ "$qn6" = "$qns" ] || {
opt="--qnum=$qn6 $NFQWS_OPT_DESYNC_HTTP6"
filter_apply_hostlist_target opt
do_nfqws $1 3 "$opt"
}
[ -z "$qns6" ] || [ "$qns6" = "$qn" ] || [ "$qns6" = "$qns" ] || [ "$qns6" = "$qn6" ] || {
opt="--qnum=$qns6 $NFQWS_OPT_DESYNC_HTTPS6"
filter_apply_hostlist_target opt
do_nfqws $1 4 "$opt"
}
;;
custom)
existf zapret_custom_daemons && zapret_custom_daemons $1
existf zapret_custom_firewall && zapret_custom_firewall
;;
esac
flow_offloading_exempt
return 0
}
zapret_run_daemons()
{
zapret_do_daemons 1 "$@"
}
zapret_stop_daemons()
{
zapret_do_daemons 0 "$@"
}

View File

@ -121,25 +121,27 @@ start_service() {
nfqws)
# quite complex but we need to minimize nfqws processes to save RAM
get_nfqws_qnums qn qns qn6 qns6
[ -z "$qn" ] || {
[ "$DISABLE_IPV4" = "1" ] || {
opt="--qnum=$qn $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_HTTP"
filter_apply_hostlist_target opt
run_daemon 1 "$NFQWS" "$opt"
[ "$qns" = "$qn" ] || {
opt="--qnum=$qns $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_HTTPS"
filter_apply_hostlist_target opt
run_daemon 2 "$NFQWS" "$opt"
}
}
[ -z "$qns" ] || [ "$qns" = "$qn" ] || {
opt="--qnum=$qns $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_HTTPS"
filter_apply_hostlist_target opt
run_daemon 2 "$NFQWS" "$opt"
}
[ -z "$qn6" ] || [ "$qn6" = "$qn" ] || [ "$qn6" = "$qns" ] || {
opt="--qnum=$qn6 $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_HTTP6"
filter_apply_hostlist_target opt
run_daemon 3 "$NFQWS" "$opt"
}
[ -z "$qns6" ] || [ "$qns6" = "$qn" ] || [ "$qns6" = "$qns" ] || [ "$qns6" = "$qn6" ] || {
opt="--qnum=$qns6 $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_HTTPS6"
filter_apply_hostlist_target opt
run_daemon 4 "$NFQWS" "$opt"
[ "$DISABLE_IPV6" = "1" ] || {
[ "$qn6" = "$qn" ] || [ "$qn6" = "$qns" ] || {
opt="--qnum=$qn6 $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_HTTP6"
filter_apply_hostlist_target opt
run_daemon 3 "$NFQWS" "$opt"
}
[ "$qns6" = "$qn" ] || [ "$qns6" = "$qns" ] || [ "$qns6" = "$qn6" ] || {
opt="--qnum=$qns6 $NFQWS_OPT_BASE $NFQWS_OPT_DESYNC_HTTPS6"
filter_apply_hostlist_target opt
run_daemon 4 "$NFQWS" "$opt"
}
}
;;
custom)

View File

@ -556,7 +556,7 @@ get_nfqws_qnums()
# $2 - var name for ipv4 https
# $3 - var name for ipv6 http
# $4 - var name for ipv6 https
local _qn _qns _qn6 _qns6
local _qn=x _qns=x _qn6=x _qns6=x
[ "$DISABLE_IPV4" = "1" ] || {
_qn=$QNUM
@ -580,14 +580,10 @@ get_nfqws_qnums()
}
[ "$NFQWS_OPT_DESYNC_HTTPS6" = "$NFQWS_OPT_DESYNC_HTTP6" ] && _qns6=$_qn6;
}
[ "$MODE_HTTP" = 1 ] && {
eval $1=$_qn
eval $3=$_qn6
}
[ "$MODE_HTTPS" = 1 ] && {
eval $2=$_qns
eval $4=$_qns6
}
eval $1=$_qn
eval $2=$_qns
eval $3=$_qn6
eval $4=$_qns6
}
tpws_apply_socks_binds()
@ -641,37 +637,37 @@ zapret_do_firewall()
echo both http and https are disabled. not applying redirection.
else
get_nfqws_qnums qn qns qn6 qns6
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn" ] && [ "$qn" = "$qns" ]; then
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ $qn = $qns ]; then
filter_apply_port_target f4
f4="$f4 $first_packet_only"
filter_apply_ipset_target4 f4
fw_nfqws_post4 $1 "$f4 $desync" $qn
else
if [ -n "$qn" ]; then
if [ "$MODE_HTTP" = "1" ]; then
f4="--dport 80"
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f4="$f4 $first_packet_only"
filter_apply_ipset_target4 f4
fw_nfqws_post4 $1 "$f4 $desync" $qn
fi
if [ -n "$qns" ]; then
if [ "$MODE_HTTPS" = "1" ]; then
f4="--dport 443 $first_packet_only"
filter_apply_ipset_target4 f4
fw_nfqws_post4 $1 "$f4 $desync" $qns
fi
fi
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn6" ] && [ "$qn6" = "$qns6" ]; then
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ $qn6 = $qns6 ]; then
filter_apply_port_target f6
f6="$f6 $first_packet_only"
filter_apply_ipset_target6 f6
fw_nfqws_post6 $1 "$f6 $desync" $qn6
else
if [ -n "$qn6" ]; then
if [ "$MODE_HTTP" = "1" ]; then
f6="--dport 80"
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f6="$f6 $first_packet_only"
filter_apply_ipset_target6 f6
fw_nfqws_post6 $1 "$f6 $desync" $qn6
fi
if [ -n "$qns6" ]; then
if [ "$MODE_HTTPS" = "1" ]; then
f6="--dport 443 $first_packet_only"
filter_apply_ipset_target6 f6
fw_nfqws_post6 $1 "$f6 $desync" $qns6
@ -715,25 +711,27 @@ zapret_do_daemons()
;;
nfqws)
get_nfqws_qnums qn qns qn6 qns6
[ -z "$qn" ] || {
[ "$DISABLE_IPV4" = "1" ] || {
opt="--qnum=$qn $NFQWS_OPT_DESYNC_HTTP"
filter_apply_hostlist_target opt
do_nfqws $1 1 "$opt"
[ "$qns" = "$qn" ] || {
opt="--qnum=$qns $NFQWS_OPT_DESYNC_HTTPS"
filter_apply_hostlist_target opt
do_nfqws $1 2 "$opt"
}
}
[ -z "$qns" ] || [ "$qns" = "$qn" ] || {
opt="--qnum=$qns $NFQWS_OPT_DESYNC_HTTPS"
filter_apply_hostlist_target opt
do_nfqws $1 2 "$opt"
}
[ -z "$qn6" ] || [ "$qn6" = "$qn" ] || [ "$qn6" = "$qns" ] || {
opt="--qnum=$qn6 $NFQWS_OPT_DESYNC_HTTP6"
filter_apply_hostlist_target opt
do_nfqws $1 3 "$opt"
}
[ -z "$qns6" ] || [ "$qns6" = "$qn" ] || [ "$qns6" = "$qns" ] || [ "$qns6" = "$qn6" ] || {
opt="--qnum=$qns6 $NFQWS_OPT_DESYNC_HTTPS6"
filter_apply_hostlist_target opt
do_nfqws $1 4 "$opt"
[ "$DISABLE_IPV6" = "1" ] || {
[ "$qn6" = "$qn" ] || [ "$qn6" = "$qns" ] || {
opt="--qnum=$qn6 $NFQWS_OPT_DESYNC_HTTP6"
filter_apply_hostlist_target opt
do_nfqws $1 3 "$opt"
}
[ "$qns6" = "$qn" ] || [ "$qns6" = "$qns" ] || [ "$qns6" = "$qn6" ] || {
opt="--qnum=$qns6 $NFQWS_OPT_DESYNC_HTTPS6"
filter_apply_hostlist_target opt
do_nfqws $1 4 "$opt"
}
}
;;
custom)