mirror of
https://github.com/bol-van/zapret.git
synced 2025-04-19 05:22:58 +03:00
415 lines
11 KiB
Plaintext
415 lines
11 KiB
Plaintext
# init script functions library for desktop linux systems
|
|
|
|
[ -n "$ZAPRET_BASE" ] || ZAPRET_BASE=/opt/zapret
|
|
# SHOULD EDIT config
|
|
. "$ZAPRET_BASE/config"
|
|
|
|
PIDDIR=/var/run
|
|
|
|
IPSET_CR=$ZAPRET_BASE/ipset/create_ipset.sh
|
|
|
|
QNUM=200
|
|
NFQWS=$ZAPRET_BASE/nfq/nfqws
|
|
NFQWS_OPT_BASE="--qnum=$QNUM"
|
|
|
|
TPWS_USER=tpws
|
|
TPPORT_HTTP=1188
|
|
TPPORT_HTTPS=1189
|
|
TPWS=$ZAPRET_BASE/tpws/tpws
|
|
TPWS_HOSTLIST=$ZAPRET_BASE/ipset/zapret-hosts.txt.gz
|
|
[ -f "$TPWS_HOSTLIST" ] || TPWS_HOSTLIST=$ZAPRET_BASE/ipset/zapret-hosts-user.txt
|
|
TPWS_OPT_BASE="--user=$TPWS_USER --bind-addr=127.0.0.1"
|
|
TPWS_OPT_BASE6="--user=$TPWS_USER --bind-addr=::1"
|
|
# first wait for lan to ifup, then wait for bind-wait-ip-linklocal seconds for link local address and bind-wait-ip for any ipv6 as the worst case
|
|
TPWS_OPT_BASE6_PRE="--user=$TPWS_USER --bind-linklocal=prefer --bind-wait-ifup=30 --bind-wait-ip=30 --bind-wait-ip-linklocal=3"
|
|
TPWS_OPT_BASE_HTTP="--port=$TPPORT_HTTP"
|
|
TPWS_OPT_BASE_HTTPS="--port=$TPPORT_HTTPS"
|
|
|
|
[ -n "$IFACE_WAN" ] && IPT_OWAN="-o $IFACE_WAN"
|
|
[ -n "$IFACE_WAN" ] && IPT_IWAN="-i $IFACE_WAN"
|
|
[ -n "$IFACE_LAN" ] && IPT_ILAN="-i $IFACE_LAN"
|
|
|
|
# max wait time for the link local ipv6 on the LAN interface
|
|
LINKLOCAL_WAIT_SEC=5
|
|
|
|
exists()
|
|
{
|
|
which $1 >/dev/null 2>/dev/null
|
|
}
|
|
|
|
ipt()
|
|
{
|
|
iptables -C $@ 2>/dev/null || iptables -I $@
|
|
}
|
|
ipt_del()
|
|
{
|
|
iptables -C $@ 2>/dev/null && iptables -D $@
|
|
}
|
|
ipt_add_del()
|
|
{
|
|
if [ "$1" = "1" ]; then
|
|
shift
|
|
ipt $@
|
|
else
|
|
shift
|
|
ipt_del $@
|
|
fi
|
|
}
|
|
ipt6()
|
|
{
|
|
ip6tables -C $@ 2>/dev/null || ip6tables -I $@
|
|
}
|
|
ipt6_del()
|
|
{
|
|
ip6tables -C $@ 2>/dev/null && ip6tables -D $@
|
|
}
|
|
ipt6_add_del()
|
|
{
|
|
if [ "$1" = "1" ]; then
|
|
shift
|
|
ipt6 $@
|
|
else
|
|
shift
|
|
ipt6_del $@
|
|
fi
|
|
}
|
|
|
|
# there's no route_localnet for ipv6
|
|
# the best we can is to route to link local of the incoming interface
|
|
# OUTPUT - can DNAT to ::1
|
|
# PREROUTING - can't DNAT to ::1. can DNAT to link local of -i interface or to any global addr
|
|
# not a good idea to expose tpws to the world (bind to ::)
|
|
|
|
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
|
|
}
|
|
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
|
|
}
|
|
|
|
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 - $ct)) seconds ...
|
|
ct=$(($ct+1))
|
|
sleep 1
|
|
do :; done
|
|
false
|
|
}
|
|
|
|
|
|
dnat6_target()
|
|
{
|
|
# get target ip address for DNAT. prefer link locals
|
|
# tpws should be as inaccessible from outside as possible
|
|
# link local address can appear not immediately after ifup
|
|
|
|
# DNAT6_TARGET=- means attempt was made but address was not found (to avoid multiple re-attempts)
|
|
[ -n "$DNAT6_TARGET" ] || {
|
|
local ct=0
|
|
while
|
|
DNAT6_TARGET=$(get_ipv6_linklocal $IFACE_LAN)
|
|
[ -n "$DNAT6_TARGET" ] && break
|
|
[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break
|
|
echo waiting for the link local for another $(($LINKLOCAL_WAIT_SEC - $ct)) seconds ...
|
|
ct=$(($ct+1))
|
|
sleep 1
|
|
do :; done
|
|
|
|
[ -n "$DNAT6_TARGET" ] || {
|
|
echo no link local. getting global
|
|
DNAT6_TARGET=$(get_ipv6_global $IFACE_LAN)
|
|
[ -n "$DNAT6_TARGET" ] || {
|
|
echo could not get any address
|
|
DNAT6_TARGET=-
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
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_tpws()
|
|
{
|
|
# $1 - 1 - add, 0 - del
|
|
# $2 - iptable filter for ipv4
|
|
# $3 - iptable filter for ipv6
|
|
# $4 - tpws port
|
|
[ "$DISABLE_IPV4" = "1" ] || {
|
|
print_op $1 "$2" "tpws"
|
|
[ -n "$IFACE_LAN" ] && {
|
|
ipt_add_del $1 PREROUTING -t nat $IPT_ILAN -p tcp $2 -j DNAT --to 127.0.0.1:$4
|
|
}
|
|
ipt_add_del $1 OUTPUT -t nat $IPT_OWAN -m owner ! --uid-owner $TPWS_USER -p tcp $2 -j DNAT --to 127.0.0.1:$4
|
|
}
|
|
[ "$DISABLE_IPV6" = "1" ] || {
|
|
print_op $1 "$3" "tpws" 6
|
|
[ -n "$IFACE_LAN" ] && {
|
|
dnat6_target
|
|
[ "$DNAT6_TARGET" != "-" ] && ipt6_add_del $1 PREROUTING -t nat $IPT_ILAN -p tcp $3 -j DNAT --to [$DNAT6_TARGET]:$4
|
|
}
|
|
ipt6_add_del $1 OUTPUT -t nat $IPT_OWAN -m owner ! --uid-owner $TPWS_USER -p tcp $3 -j DNAT --to [::1]:$4
|
|
}
|
|
}
|
|
fw_nfqws_pre()
|
|
{
|
|
# $1 - 1 - add, 0 - del
|
|
# $2 - iptable filter for ipv4
|
|
# $3 - iptable filter for ipv6
|
|
[ "$DISABLE_IPV4" = "1" ] || {
|
|
print_op $1 "$2" "nfqws prerouting"
|
|
ipt_add_del $1 PREROUTING -t raw $IPT_IWAN -p tcp --tcp-flags SYN,ACK SYN,ACK $2 -j NFQUEUE --queue-num $QNUM --queue-bypass
|
|
}
|
|
[ "$DISABLE_IPV6" = "1" ] || {
|
|
print_op $1 "$3" "nfqws prerouting" 6
|
|
ipt6_add_del $1 PREROUTING -t raw $IPT_IWAN -p tcp --tcp-flags SYN,ACK SYN,ACK $3 -j NFQUEUE --queue-num $QNUM --queue-bypass
|
|
}
|
|
}
|
|
fw_nfqws_post()
|
|
{
|
|
# $1 - 1 - add, 0 - del
|
|
# $2 - iptable filter for ipv4
|
|
# $3 - iptable filter for ipv6
|
|
[ "$DISABLE_IPV4" = "1" ] || {
|
|
print_op $1 "$2" "nfqws postrouting"
|
|
ipt_add_del $1 POSTROUTING -t mangle $IPT_OWAN -p tcp $2 -j NFQUEUE --queue-num $QNUM --queue-bypass
|
|
}
|
|
[ "$DISABLE_IPV6" = "1" ] || {
|
|
print_op $1 "$3" "nfqws postrouting" 6
|
|
ipt6_add_del $1 POSTROUTING -t mangle $IPT_OWAN -p tcp $3 -j NFQUEUE --queue-num $QNUM --queue-bypass
|
|
}
|
|
}
|
|
|
|
|
|
run_daemon()
|
|
{
|
|
# $1 - daemon number : 1,2,3,...
|
|
# $2 - daemon
|
|
# $3 - daemon args
|
|
# use $PIDDIR/$DAEMONBASE$1.pid as pidfile
|
|
local DAEMONBASE=$(basename $2)
|
|
local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
|
|
echo "Starting daemon $1: $2 $3"
|
|
if exists start-stop-daemon ; then
|
|
start-stop-daemon --start --pidfile "$PIDFILE" --background --make-pidfile --exec "$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
|
|
}
|
|
stop_daemon()
|
|
{
|
|
# $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: $2"
|
|
if exists start-stop-daemon ; then
|
|
start-stop-daemon --stop --pidfile "$PIDFILE" --exec "$2"
|
|
else
|
|
if [ -f "$PIDFILE" ]; then
|
|
read PID <"$PIDFILE"
|
|
kill $PID
|
|
rm -f "$PIDFILE"
|
|
else
|
|
echo no pidfile : $PIDFILE
|
|
fi
|
|
fi
|
|
}
|
|
|
|
prepare_tpws()
|
|
{
|
|
# $TPWS_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
|
|
id -u $TPWS_USER >/dev/null 2>/dev/null || useradd --no-create-home --system --shell /bin/false $TPWS_USER
|
|
# otherwise linux kernel will treat 127.0.0.1 as "martian" ip and refuse routing to it
|
|
# NOTE : kernels <3.6 do not have this feature. consider upgrading or change DNAT to REDIRECT and do not bind to 127.0.0.1
|
|
[ -n "$IFACE_LAN" ] && sysctl -qw net.ipv4.conf.$IFACE_LAN.route_localnet=1
|
|
}
|
|
|
|
run_tpws()
|
|
{
|
|
prepare_tpws
|
|
[ "$DISABLE_IPV4" = "1" ] || run_daemon $1 $TPWS "$TPWS_OPT_BASE $2"
|
|
[ "$DISABLE_IPV6" = "1" ] || {
|
|
run_daemon $((60+$1)) $TPWS "$TPWS_OPT_BASE6 $2"
|
|
[ -n "$IFACE_LAN" ] && run_daemon $((660+$1)) $TPWS "$TPWS_OPT_BASE6_PRE --bind-iface6=$IFACE_LAN $2"
|
|
}
|
|
}
|
|
stop_tpws()
|
|
{
|
|
[ "$DISABLE_IPV4" = "1" ] || stop_daemon $1 $TPWS
|
|
[ "$DISABLE_IPV6" = "1" ] || {
|
|
stop_daemon $((60+$1)) $TPWS
|
|
[ -n "$IFACE_LAN" ] && stop_daemon $((660+$1)) $TPWS
|
|
}
|
|
}
|
|
|
|
|
|
create_ipset()
|
|
{
|
|
echo "Creating ipset"
|
|
"$IPSET_CR"
|
|
}
|
|
|
|
|
|
|
|
zapret_do_firewall()
|
|
{
|
|
# $1 - 1 - add, 0 - del
|
|
|
|
case "${MODE}" in
|
|
tpws_hostlist)
|
|
[ "$1" = "1" ] && prepare_tpws
|
|
fw_tpws $1 "--dport 80" "--dport 80" $TPPORT_HTTP
|
|
;;
|
|
tpws_ipset)
|
|
[ "$1" = "1" ] && create_ipset
|
|
[ "$1" = "1" ] && prepare_tpws
|
|
fw_tpws $1 "--dport 80 -m set --match-set zapret dst" "--dport 80 -m set --match-set zapret6 dst" $TPPORT_HTTP
|
|
;;
|
|
tpws_ipset_https)
|
|
[ "$1" = "1" ] && create_ipset
|
|
[ "$1" = "1" ] && prepare_tpws
|
|
fw_tpws $1 "--dport 80 -m set --match-set zapret dst" "--dport 80 -m set --match-set zapret6 dst" $TPPORT_HTTP
|
|
fw_tpws $1 "--dport 443 -m set --match-set zapret dst" "--dport 443 -m set --match-set zapret6 dst" $TPPORT_HTTPS
|
|
;;
|
|
tpws_all)
|
|
[ "$1" = "1" ] && prepare_tpws
|
|
fw_tpws $1 "--dport 80" "--dport 80" $TPPORT_HTTP
|
|
;;
|
|
tpws_all_https)
|
|
[ "$1" = "1" ] && prepare_tpws
|
|
fw_tpws $1 "--dport 80" "--dport 80" $TPPORT_HTTP
|
|
fw_tpws $1 "--dport 443" "--dport 443" $TPPORT_HTTPS
|
|
;;
|
|
nfqws_ipset)
|
|
[ "$1" = "1" ] && create_ipset
|
|
fw_nfqws_pre $1 "--sport 80 -m set --match-set zapret src" "--sport 80 -m set --match-set zapret6 src"
|
|
fw_nfqws_post $1 "--dport 80 -m set --match-set zapret dst" "--dport 80 -m set --match-set zapret6 dst"
|
|
;;
|
|
nfqws_ipset_https)
|
|
[ "$1" = "1" ] && create_ipset
|
|
fw_nfqws_pre $1 "-m multiport --sports 80,443 -m set --match-set zapret src" "-m multiport --sports 80,443 -m set --match-set zapret6 src"
|
|
fw_nfqws_post $1 "--dport 80 -m set --match-set zapret dst" "--dport 80 -m set --match-set zapret6 dst"
|
|
;;
|
|
nfqws_all)
|
|
fw_nfqws_pre $1 "--sport 80" "--sport 80"
|
|
fw_nfqws_post $1 "--dport 80" "--dport 80"
|
|
;;
|
|
nfqws_all_https)
|
|
fw_nfqws_pre $1 "-m multiport --sports 80,443" "-m multiport --sports 80,443"
|
|
fw_nfqws_post $1 "--dport 80" "--dport 80"
|
|
;;
|
|
ipset)
|
|
[ "$1" = "1" ] && create_ipset
|
|
;;
|
|
custom)
|
|
# PLACEHOLDER
|
|
echo !!! NEED ATTENTION !!!
|
|
echo Configure iptables for required actions
|
|
echo Study how other sections work
|
|
;;
|
|
esac
|
|
}
|
|
zapret_apply_firewall()
|
|
{
|
|
zapret_do_firewall 1 $@
|
|
}
|
|
zapret_unapply_firewall()
|
|
{
|
|
zapret_do_firewall 0 $@
|
|
}
|
|
|
|
zapret_run_daemons()
|
|
{
|
|
case "${MODE}" in
|
|
tpws_hostlist)
|
|
run_tpws 1 "$TPWS_OPT_BASE_HTTP $TPWS_OPT_HTTP --hostlist=$TPWS_HOSTLIST"
|
|
;;
|
|
tpws_ipset)
|
|
run_tpws 1 "$TPWS_OPT_BASE_HTTP $TPWS_OPT_HTTP"
|
|
;;
|
|
tpws_ipset_https|tpws_all_https)
|
|
run_tpws 1 "$TPWS_OPT_BASE_HTTP $TPWS_OPT_HTTP"
|
|
run_tpws 2 "$TPWS_OPT_BASE_HTTPS $TPWS_OPT_HTTPS"
|
|
;;
|
|
tpws_all)
|
|
run_tpws 1 "$TPWS_OPT_BASE_HTTP $TPWS_OPT_HTTP"
|
|
;;
|
|
nfqws_ipset|nfqws_ipset_https|nfqws_all|nfqws_all_https)
|
|
run_daemon 1 $NFQWS "$NFQWS_OPT_BASE $NFQWS_OPT"
|
|
;;
|
|
ipset)
|
|
create_ipset
|
|
;;
|
|
custom)
|
|
# PLACEHOLDER
|
|
echo !!! NEED ATTENTION !!!
|
|
echo Start daemon\(s\)
|
|
echo Study how other sections work
|
|
run_daemon 1 /bin/sleep 20
|
|
;;
|
|
esac
|
|
}
|
|
zapret_stop_daemons()
|
|
{
|
|
case "${MODE}" in
|
|
tpws_hostlist|tpws_all|tpws_ipset)
|
|
stop_tpws 1
|
|
;;
|
|
tpws_ipset_https|tpws_all_https)
|
|
stop_tpws 1
|
|
stop_tpws 2
|
|
;;
|
|
nfqws_ipset|nfqws_ipset_https|nfqws_all|nfqws_all_https)
|
|
stop_daemon 1 $NFQWS
|
|
;;
|
|
custom)
|
|
# PLACEHOLDER
|
|
echo !!! NEED ATTENTION !!!
|
|
echo Stop daemon\(s\) previously started.
|
|
echo Study how other sections work.
|
|
;;
|
|
esac
|
|
}
|