mirror of
https://github.com/bol-van/zapret.git
synced 2025-05-24 22:32:58 +03:00
nftables support
This commit is contained in:
@@ -2,14 +2,22 @@
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[ -n "$ZAPRET_BASE" ] || ZAPRET_BASE=/opt/zapret
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. "$ZAPRET_BASE/config"
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. "$ZAPRET_BASE/common/base.sh"
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. "$ZAPRET_BASE/common/fwtype.sh"
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. "$ZAPRET_BASE/common/queue.sh"
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. "$ZAPRET_BASE/common/linux_iphelper.sh"
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. "$ZAPRET_BASE/common/ipt.sh"
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. "$ZAPRET_BASE/common/nft.sh"
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. "$ZAPRET_BASE/common/linux_fw.sh"
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[ -n "$QNUM" ] || QNUM=200
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[ -n "$TPPORT" ] || TPPORT=988
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[ -n "$WS_USER" ] || WS_USER=daemon
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TPWS_LOCALHOST4=127.0.0.127
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[ -n "$DESYNC_MARK" ] || DESYNC_MARK=0x40000000
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[ -n "$OPENWRT_LAN" ] || OPENWRT_LAN=lan
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TPWS_LOCALHOST4=127.0.0.127
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# max wait time for the link local ipv6 on the LAN interface
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LINKLOCAL_WAIT_SEC=5
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@@ -26,14 +34,6 @@ NFQWS_OPT_DESYNC_HTTPS="${NFQWS_OPT_DESYNC_HTTPS:-$NFQWS_OPT_DESYNC}"
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NFQWS_OPT_DESYNC_HTTP6="${NFQWS_OPT_DESYNC_HTTP6:-$NFQWS_OPT_DESYNC_HTTP}"
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NFQWS_OPT_DESYNC_HTTPS6="${NFQWS_OPT_DESYNC_HTTPS6:-$NFQWS_OPT_DESYNC_HTTPS}"
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exists()
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{
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which "$1" >/dev/null 2>/dev/null
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}
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existf()
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{
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type "$1" >/dev/null 2>/dev/null
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}
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# can be multiple ipv6 outgoing interfaces
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@@ -46,341 +46,268 @@ existf()
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network_find_wan_all()
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{
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__network_ifstatus "$1" "" "[@.route[@.target='0.0.0.0' && !@.table]].interface" "" 10 2>/dev/null && return
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network_find_wan $1
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__network_ifstatus "$1" "" "[@.route[@.target='0.0.0.0' && !@.table]].interface" "" 10 2>/dev/null && return
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network_find_wan $1
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}
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network_find_wan6_all()
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{
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__network_ifstatus "$1" "" "[@.route[@.target='::' && !@.table]].interface" "" 10 2>/dev/null && return
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network_find_wan6 $1
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__network_ifstatus "$1" "" "[@.route[@.target='::' && !@.table]].interface" "" 10 2>/dev/null && return
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network_find_wan6 $1
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}
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ipt()
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route_localnet()
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{
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iptables -C "$@" >/dev/null 2>/dev/null || iptables -I "$@"
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}
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ipt_del()
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{
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iptables -C "$@" >/dev/null 2>/dev/null && iptables -D "$@"
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}
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ipt6()
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{
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ip6tables -C "$@" >/dev/null 2>/dev/null || ip6tables -I "$@"
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}
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ipt6_del()
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{
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ip6tables -C "$@" >/dev/null 2>/dev/null && ip6tables -D "$@"
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}
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# there's no route_localnet for ipv6
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# the best we can is to route to link local of the incoming interface
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# OUTPUT - can DNAT to ::1
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# PREROUTING - can't DNAT to ::1. can DNAT to link local of -i interface or to any global addr
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# not a good idea to expose tpws to the world (bind to ::)
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get_ipv6_linklocal()
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{
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# $1 - interface name. if empty - any interface
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if exists ip ; then
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local dev
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[ -n "$1" ] && dev="dev $1"
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ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope link.*$/\1/;t;d' | head -n 1
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else
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ifconfig $1 | sed -re 's/^.*inet6 addr: ([^ ]*)\/[0-9]* Scope:Link.*$/\1/;t;d' | head -n 1
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fi
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}
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get_ipv6_global()
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{
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# $1 - interface name. if empty - any interface
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if exists ip ; then
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local dev
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[ -n "$1" ] && dev="dev $1"
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ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope global.*$/\1/;t;d' | head -n 1
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else
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ifconfig $1 | sed -re 's/^.*inet6 addr: ([^ ]*)\/[0-9]* Scope:Global.*$/\1/;t;d' | head -n 1
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fi
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for lan in $OPENWRT_LAN; do
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network_get_device DEVICE $lan
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[ -n "$DEVICE" ] || continue
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sysctl -qw net.ipv4.conf.$DEVICE.route_localnet=1
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done
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}
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dnat6_target()
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{
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# $1 - lan network name
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# $2 - var to store target ip6
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# get target ip address for DNAT. prefer link locals
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# tpws should be as inaccessible from outside as possible
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# link local address can appear not immediately after ifup
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# DNAT6_TARGET=- means attempt was made but address was not found (to avoid multiple re-attempts)
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# $1 - lan network name
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# $2 - var to store target ip6
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# get target ip address for DNAT. prefer link locals
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# tpws should be as inaccessible from outside as possible
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# link local address can appear not immediately after ifup
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# DNAT6_TARGET=- means attempt was made but address was not found (to avoid multiple re-attempts)
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local DNAT6_TARGET DVAR=DNAT6_TARGET_$1
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DVAR=$(echo $DVAR | sed 's/[^a-zA-Z0-9_]/_/g')
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eval DNAT6_TARGET="\$$DVAR"
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[ -n "$2" ] && eval $2=''
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local DNAT6_TARGET DVAR=DNAT6_TARGET_$1
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DVAR=$(echo $DVAR | sed 's/[^a-zA-Z0-9_]/_/g')
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eval DNAT6_TARGET="\$$DVAR"
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[ -n "$2" ] && eval $2=''
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[ -n "$DNAT6_TARGET" ] || {
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# no reason to query if its down
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network_is_up $1 || return
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[ -n "$DNAT6_TARGET" ] || {
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# no reason to query if its down
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network_is_up $1 || return
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local DEVICE
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network_get_device DEVICE $1
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local DEVICE
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network_get_device DEVICE $1
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local ct=0
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while
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DNAT6_TARGET=$(get_ipv6_linklocal $DEVICE)
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[ -n "$DNAT6_TARGET" ] && break
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[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break
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echo $DEVICE: waiting for the link local for another $(($LINKLOCAL_WAIT_SEC - $ct)) seconds ...
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ct=$(($ct+1))
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sleep 1
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do :; done
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local ct=0
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while
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DNAT6_TARGET=$(get_ipv6_linklocal $DEVICE)
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[ -n "$DNAT6_TARGET" ] && break
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[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break
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echo $DEVICE: waiting for the link local for another $(($LINKLOCAL_WAIT_SEC - $ct)) seconds ...
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ct=$(($ct+1))
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sleep 1
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do :; done
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[ -n "$DNAT6_TARGET" ] || {
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echo $DEVICE: no link local. getting global
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DNAT6_TARGET=$(get_ipv6_global $DEVICE)
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[ -n "$DNAT6_TARGET" ] || {
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echo $DEVICE: could not get any address
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DNAT6_TARGET=-
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}
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}
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eval $DVAR="$DNAT6_TARGET"
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}
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[ -n "$2" ] && eval $2="$DNAT6_TARGET"
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[ -n "$DNAT6_TARGET" ] || {
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echo $DEVICE: no link local. getting global
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DNAT6_TARGET=$(get_ipv6_global $DEVICE)
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[ -n "$DNAT6_TARGET" ] || {
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echo $DEVICE: could not get any address
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DNAT6_TARGET=-
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}
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}
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eval $DVAR="$DNAT6_TARGET"
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}
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[ -n "$2" ] && eval $2="$DNAT6_TARGET"
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}
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set_route_localnet()
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{
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# $1 - 1 = enable, 0 = disable
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[ "$DISABLE_IPV4" = "1" ] || {
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local lan DEVICE
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for lan in $OPENWRT_LAN; do
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network_get_device DEVICE $lan
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[ -n "$DEVICE" ] || continue
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sysctl -q -w net.ipv4.conf.$DEVICE.route_localnet=$1
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done
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}
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}
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prepare_route_localnet()
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{
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set_route_localnet 1
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}
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unprepare_route_localnet()
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{
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set_route_localnet 0
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}
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prepare_tpws_fw4()
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{
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# otherwise linux kernel will treat 127.0.0.0/8 as "martian" ip and refuse routing to it
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# NOTE : kernels <3.6 do not have this feature. consider upgrading or change DNAT to REDIRECT and do not bind to 127.0.0.0/8
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[ "$DISABLE_IPV4" = "1" ] || {
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iptables -N input_rule_zapret 2>/dev/null
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ipt input_rule_zapret -d $TPWS_LOCALHOST4 -j RETURN
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ipta input_rule_zapret -d 127.0.0.0/8 -j DROP
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ipt INPUT ! -i lo -j input_rule_zapret
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prepare_route_localnet
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}
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}
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unprepare_tpws_fw4()
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{
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[ "$DISABLE_IPV4" = "1" ] || {
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unprepare_route_localnet
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ipt_del INPUT ! -i lo -j input_rule_zapret
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iptables -F input_rule_zapret 2>/dev/null
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iptables -X input_rule_zapret 2>/dev/null
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}
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}
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unprepare_tpws_fw()
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{
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unprepare_tpws_fw4
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}
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fw_nfqws_pre4()
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{
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# $1 - filter ipv4
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# $2 - queue number
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# $1 - 1 - add, 0 - del
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# $2 - filter ipv4
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# $3 - queue number
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local DEVICE wan_iface
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local DEVICE wan_iface
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[ "$DISABLE_IPV4" = "1" ] || {
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network_find_wan_all wan_iface
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for ext_iface in $wan_iface; do
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network_get_device DEVICE $ext_iface
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ipt PREROUTING -t mangle -i $DEVICE -p tcp $1 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $2 --queue-bypass
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done
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}
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[ "$DISABLE_IPV4" = "1" ] || {
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network_find_wan_all wan_iface
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for ext_iface in $wan_iface; do
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network_get_device DEVICE $ext_iface
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ipt_add_del $1 PREROUTING -t mangle -i $DEVICE -p tcp $2 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $3 --queue-bypass
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done
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}
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}
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fw_nfqws_pre6()
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{
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# $1 - filter ipv6
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# $2 - queue number
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# $1 - 1 - add, 0 - del
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# $2 - filter ipv6
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# $3 - queue number
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local DEVICE wan_iface
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local DEVICE wan_iface
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[ "$DISABLE_IPV6" = "1" ] || {
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network_find_wan6_all wan_iface
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for ext_iface in $wan_iface; do
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network_get_device DEVICE $ext_iface
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ipt6 PREROUTING -t mangle -i $DEVICE -p tcp $1 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $2 --queue-bypass
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done
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}
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[ "$DISABLE_IPV6" = "1" ] || {
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network_find_wan6_all wan_iface
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for ext_iface in $wan_iface; do
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network_get_device DEVICE $ext_iface
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ipt6_add_del $1 PREROUTING -t mangle -i $DEVICE -p tcp $2 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $3 --queue-bypass
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done
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}
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}
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fw_nfqws_pre()
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{
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# $1 - filter ipv4
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# $2 - filter ipv6
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# $3 - queue number
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# $1 - 1 - add, 0 - del
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# $2 - filter ipv4
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# $3 - filter ipv6
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# $4 - queue number
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fw_nfqws_pre4 "$1" $3
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fw_nfqws_pre6 "$2" $3
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fw_nfqws_pre4 $1 "$2" $4
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fw_nfqws_pre6 $1 "$3" $4
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}
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fw_nfqws_post4()
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{
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# $1 - filter ipv4
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# $2 - queue number
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# $1 - 1 - add, 0 - del
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# $2 - filter ipv4
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# $3 - queue number
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local DEVICE wan_iface
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local DEVICE wan_iface
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[ "$DISABLE_IPV4" = "1" ] || {
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network_find_wan_all wan_iface
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for ext_iface in $wan_iface; do
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network_get_device DEVICE $ext_iface
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ipt POSTROUTING -t mangle -o $DEVICE -p tcp $1 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $2 --queue-bypass
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done
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}
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[ "$DISABLE_IPV4" = "1" ] || {
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network_find_wan_all wan_iface
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for ext_iface in $wan_iface; do
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network_get_device DEVICE $ext_iface
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ipt_add_del $1 POSTROUTING -t mangle -o $DEVICE -p tcp $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass
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done
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}
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}
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fw_nfqws_post6()
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{
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# $1 - filter ipv6
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# $2 - queue number
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# $1 - 1 - add, 0 - del
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# $2 - filter ipv6
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# $3 - queue number
|
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local DEVICE wan_iface
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local DEVICE wan_iface
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|
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[ "$DISABLE_IPV6" = "1" ] || {
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network_find_wan6_all wan_iface
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for ext_iface in $wan_iface; do
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network_get_device DEVICE $ext_iface
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ipt6 POSTROUTING -t mangle -o $DEVICE -p tcp $1 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $2 --queue-bypass
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||||
done
|
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}
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
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||||
network_find_wan6_all wan_iface
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for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
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||||
ipt6_add_del $1 POSTROUTING -t mangle -o $DEVICE -p tcp $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass
|
||||
done
|
||||
}
|
||||
}
|
||||
fw_nfqws_post()
|
||||
{
|
||||
# $1 - filter ipv4
|
||||
# $2 - filter ipv6
|
||||
# $3 - queue number
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - filter ipv6
|
||||
# $4 - queue number
|
||||
|
||||
fw_nfqws_post4 "$1" $3
|
||||
fw_nfqws_post6 "$2" $3
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||||
fw_nfqws_post4 $1 "$2" $4
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||||
fw_nfqws_post6 $1 "$3" $4
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||||
}
|
||||
|
||||
|
||||
IPT_OWNER="-m owner ! --uid-owner $WS_USER"
|
||||
fw_tpws4()
|
||||
{
|
||||
# $1 - filter ipv6
|
||||
# $2 - tpws port
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - tpws port
|
||||
|
||||
local DEVICE wan_iface
|
||||
local lan DEVICE ext_iface wan_iface
|
||||
|
||||
[ "$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
|
||||
}
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
network_find_wan_all wan_iface
|
||||
for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
|
||||
ipt_add_del $1 OUTPUT -t nat -o $DEVICE $IPT_OWNER -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3
|
||||
done
|
||||
[ "$1" = 1 ] && prepare_tpws_fw4
|
||||
for lan in $OPENWRT_LAN; do
|
||||
network_get_device DEVICE $lan
|
||||
[ -n "$DEVICE" ] || continue
|
||||
ipt_add_del $1 PREROUTING -t nat -i $DEVICE -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3
|
||||
done
|
||||
}
|
||||
}
|
||||
fw_tpws6()
|
||||
{
|
||||
# $1 - filter ipv6
|
||||
# $2 - tpws port
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv6
|
||||
# $3 - tpws port
|
||||
|
||||
local DEVICE wan_iface DNAT6
|
||||
local lan DEVICE ext_iface wan_iface DNAT6
|
||||
|
||||
[ "$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]:$2
|
||||
done
|
||||
}
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
network_find_wan6_all wan_iface
|
||||
for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
|
||||
ipt6_add_del $1 OUTPUT -t nat -o $DEVICE $IPT_OWNER -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [::1]:$3
|
||||
done
|
||||
for lan in $OPENWRT_LAN; do
|
||||
network_get_device DEVICE $lan
|
||||
[ -n "$DEVICE" ] || continue
|
||||
dnat6_target $lan DNAT6
|
||||
[ "$DNAT6" != '-' ] && ipt6_add_del $1 PREROUTING -t nat -i $DEVICE -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [$DNAT6]:$3
|
||||
done
|
||||
}
|
||||
}
|
||||
fw_tpws()
|
||||
{
|
||||
# $1 - filter ipv4
|
||||
# $2 - filter ipv6
|
||||
# $3 - tpws port
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - filter ipv6
|
||||
# $4 - tpws port
|
||||
|
||||
fw_tpws4 "$1" $3
|
||||
fw_tpws6 "$2" $3
|
||||
fw_tpws4 $1 "$2" $4
|
||||
fw_tpws6 $1 "$3" $4
|
||||
}
|
||||
|
||||
filter_apply_port_target()
|
||||
{
|
||||
# $1 - var name of iptables filter
|
||||
local f
|
||||
if [ "$MODE_HTTP" = "1" ] && [ "$MODE_HTTPS" = "1" ]; then
|
||||
f="-m multiport --dports 80,443"
|
||||
elif [ "$MODE_HTTPS" = "1" ]; then
|
||||
f="--dport 443"
|
||||
elif [ "$MODE_HTTP" = "1" ]; then
|
||||
f="--dport 80"
|
||||
else
|
||||
echo WARNING !!! HTTP and HTTPS are both disabled
|
||||
fi
|
||||
eval $1="\"\$$1 $f\""
|
||||
}
|
||||
filter_apply_ipset_target4()
|
||||
{
|
||||
# $1 - var name of ipv4 iptables filter
|
||||
if [ "$MODE_FILTER" = "ipset" ]; then
|
||||
eval $1="\"\$$1 -m set --match-set zapret dst\""
|
||||
fi
|
||||
}
|
||||
filter_apply_ipset_target6()
|
||||
{
|
||||
# $1 - var name of ipv4 iptables filter
|
||||
if [ "$MODE_FILTER" = "ipset" ]; then
|
||||
eval $1="\"\$$1 -m set --match-set zapret6 dst\""
|
||||
fi
|
||||
}
|
||||
filter_apply_ipset_target()
|
||||
{
|
||||
# $1 - var name of ipv4 iptables filter
|
||||
# $2 - var name of ipv6 iptables filter
|
||||
filter_apply_ipset_target4 $1
|
||||
filter_apply_ipset_target6 $2
|
||||
}
|
||||
|
||||
get_nfqws_qnums()
|
||||
{
|
||||
# $1 - var name for ipv4 http
|
||||
# $2 - var name for ipv4 https
|
||||
# $3 - var name for ipv6 http
|
||||
# $4 - var name for ipv6 https
|
||||
local _qn _qns _qn6 _qns6
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
_qn=$QNUM
|
||||
_qns=$_qn
|
||||
[ "$NFQWS_OPT_DESYNC_HTTP" = "$NFQWS_OPT_DESYNC_HTTPS" ] || _qns=$(($QNUM+1))
|
||||
}
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
_qn6=$(($QNUM+2))
|
||||
_qns6=$(($QNUM+3))
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
if [ "$NFQWS_OPT_DESYNC_HTTP6" = "$NFQWS_OPT_DESYNC_HTTP" ]; then
|
||||
_qn6=$_qn;
|
||||
elif [ "$NFQWS_OPT_DESYNC_HTTP6" = "$NFQWS_OPT_DESYNC_HTTPS" ]; then
|
||||
_qn6=$_qns;
|
||||
fi
|
||||
if [ "$NFQWS_OPT_DESYNC_HTTPS6" = "$NFQWS_OPT_DESYNC_HTTP" ]; then
|
||||
_qns6=$_qn;
|
||||
elif [ "$NFQWS_OPT_DESYNC_HTTPS6" = "$NFQWS_OPT_DESYNC_HTTPS" ]; then
|
||||
_qns6=$_qns;
|
||||
fi
|
||||
}
|
||||
[ "$NFQWS_OPT_DESYNC_HTTPS6" = "$NFQWS_OPT_DESYNC_HTTP6" ] && _qns6=$_qn6;
|
||||
}
|
||||
if [ "$MODE_HTTP" = 1 ]; then
|
||||
eval $1=$_qn
|
||||
eval $3=$_qn6
|
||||
else
|
||||
eval $1=
|
||||
eval $3=
|
||||
fi
|
||||
if [ "$MODE_HTTPS" = 1 ]; then
|
||||
eval $2=$_qns
|
||||
eval $4=$_qns6
|
||||
else
|
||||
eval $2=
|
||||
eval $4=
|
||||
fi
|
||||
}
|
||||
|
||||
create_ipset()
|
||||
{
|
||||
echo "Creating ipset"
|
||||
"$IPSET_CR" "$@"
|
||||
echo "Creating ip list table (firewall type $FWTYPE)"
|
||||
"$IPSET_CR" "$@"
|
||||
}
|
||||
|
||||
|
||||
is_flow_offload_avail()
|
||||
{
|
||||
# $1 = '' for ipv4, '6' for ipv6
|
||||
grep -q FLOWOFFLOAD /proc/net/ip$1_tables_targets
|
||||
}
|
||||
list_nfqws_rules()
|
||||
{
|
||||
# $1 = '' for ipv4, '6' for ipv6
|
||||
@@ -390,7 +317,7 @@ list_nfqws_rules()
|
||||
}
|
||||
reverse_nfqws_rule()
|
||||
{
|
||||
sed -e 's/-o /-i /' -e 's/--dport /--sport /' -e 's/--dports /--sports /' -e 's/ dst$/ src/' -e 's/ dst / src /'
|
||||
sed -e 's/-o /-i /g' -e 's/--dport /--sport /g' -e 's/--dports /--sports /g' -e 's/ dst$/ src/' -e 's/ dst / src /g'
|
||||
}
|
||||
apply_flow_offloading_enable_rule()
|
||||
{
|
||||
@@ -411,15 +338,19 @@ apply_flow_offloading_exempt_rule()
|
||||
echo applying ipv${v:-4} flow offloading exemption : $i
|
||||
ip${v}tables -A $i
|
||||
}
|
||||
flow_offloading_unexempt_v()
|
||||
{
|
||||
ipt$1_del FORWARD -j forwarding_rule_zapret
|
||||
ip$1tables -F forwarding_rule_zapret 2>/dev/null
|
||||
ip$1tables -X forwarding_rule_zapret 2>/dev/null
|
||||
}
|
||||
flow_offloading_exempt_v()
|
||||
{
|
||||
# $1 = '' for ipv4, '6' for ipv6
|
||||
|
||||
is_flow_offload_avail $1 || return 0
|
||||
is_ipt_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
|
||||
flow_offloading_unexempt_v $1
|
||||
|
||||
[ "$FLOWOFFLOAD" = 'software' -o "$FLOWOFFLOAD" = 'hardware' ] && {
|
||||
ip$1tables -N forwarding_rule_zapret
|
||||
@@ -436,7 +367,7 @@ flow_offloading_exempt_v()
|
||||
|
||||
apply_flow_offloading_enable_rule $1
|
||||
|
||||
ipt$1 forwarding_rule -j forwarding_rule_zapret
|
||||
ipt$1 FORWARD -j forwarding_rule_zapret
|
||||
}
|
||||
|
||||
return 0
|
||||
@@ -446,75 +377,137 @@ flow_offloading_exempt()
|
||||
[ "$DISABLE_IPV4" = "1" ] || flow_offloading_exempt_v
|
||||
[ "$DISABLE_IPV6" = "1" ] || flow_offloading_exempt_v 6
|
||||
}
|
||||
|
||||
|
||||
zapret_apply_firewall()
|
||||
flow_offloading_unexempt()
|
||||
{
|
||||
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
|
||||
create_ipset no-update
|
||||
|
||||
case "${MODE_OVERRIDE:-$MODE}" in
|
||||
tpws)
|
||||
if [ ! "$MODE_HTTP" = "1" ] && [ ! "$MODE_HTTPS" = "1" ]; then
|
||||
echo both http and https are disabled. not applying redirection.
|
||||
else
|
||||
filter_apply_port_target f4
|
||||
f6=$f4
|
||||
filter_apply_ipset_target f4 f6
|
||||
fw_tpws "$f4" "$f6" $TPPORT
|
||||
fi
|
||||
;;
|
||||
|
||||
nfqws)
|
||||
# quite complex but we need to minimize nfqws processes to save RAM
|
||||
get_nfqws_qnums qn qns qn6 qns6
|
||||
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn" ] && [ "$qn" = "$qns" ]; then
|
||||
filter_apply_port_target f4
|
||||
f4="$f4 $first_packet_only"
|
||||
filter_apply_ipset_target4 f4
|
||||
fw_nfqws_post4 "$f4 $desync" $qn
|
||||
else
|
||||
if [ -n "$qn" ]; then
|
||||
f4="--dport 80"
|
||||
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f4="$f4 $first_packet_only"
|
||||
filter_apply_ipset_target4 f4
|
||||
fw_nfqws_post4 "$f4 $desync" $qn
|
||||
fi
|
||||
if [ -n "$qns" ]; then
|
||||
f4="--dport 443 $first_packet_only"
|
||||
filter_apply_ipset_target4 f4
|
||||
fw_nfqws_post4 "$f4 $desync" $qns
|
||||
fi
|
||||
fi
|
||||
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn6" ] && [ "$qn6" = "$qns6" ]; then
|
||||
filter_apply_port_target f6
|
||||
f6="$f6 $first_packet_only"
|
||||
filter_apply_ipset_target6 f6
|
||||
fw_nfqws_post6 "$f6 $desync" $qn6
|
||||
else
|
||||
if [ -n "$qn6" ]; then
|
||||
f6="--dport 80"
|
||||
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f6="$f6 $first_packet_only"
|
||||
filter_apply_ipset_target6 f6
|
||||
fw_nfqws_post6 "$f6 $desync" $qn6
|
||||
fi
|
||||
if [ -n "$qns6" ]; then
|
||||
f6="--dport 443 $first_packet_only"
|
||||
filter_apply_ipset_target6 f6
|
||||
fw_nfqws_post6 "$f6 $desync" $qns6
|
||||
fi
|
||||
fi
|
||||
;;
|
||||
custom)
|
||||
existf zapret_custom_firewall && zapret_custom_firewall
|
||||
;;
|
||||
esac
|
||||
|
||||
flow_offloading_exempt
|
||||
|
||||
return 0
|
||||
[ "$DISABLE_IPV4" = "1" ] || flow_offloading_unexempt_v
|
||||
[ "$DISABLE_IPV6" = "1" ] || flow_offloading_unexempt_v 6
|
||||
}
|
||||
|
||||
|
||||
|
||||
nft_fill_ifsets()
|
||||
{
|
||||
local script elements i wan_iface DEVICE DLAN DWAN DWAN6 ALLDEVS flags
|
||||
|
||||
# if large sets exist nft works very ineffectively
|
||||
# looks like it analyzes the whole table blob to find required data pieces
|
||||
# calling all in one shot helps not to waste cpu time many times
|
||||
|
||||
script="flush set inet $ZAPRET_NFT_TABLE wanif
|
||||
flush set inet $ZAPRET_NFT_TABLE wanif6
|
||||
flush set inet $ZAPRET_NFT_TABLE lanif"
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
network_find_wan_all wan_iface
|
||||
for i in $wan_iface; do
|
||||
network_get_device DEVICE $i
|
||||
DWAN="$DWAN $DEVICE"
|
||||
done
|
||||
[ -n "$DWAN" ] && {
|
||||
make_comma_list elements $DWAN
|
||||
script="${script}
|
||||
add element inet $ZAPRET_NFT_TABLE wanif { $elements }"
|
||||
}
|
||||
}
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
network_find_wan6_all wan_iface
|
||||
for i in $wan_iface; do
|
||||
network_get_device DEVICE $i
|
||||
DWAN6="$DWAN6 $DEVICE"
|
||||
done
|
||||
[ -n "$DWAN6" ] && {
|
||||
make_comma_list elements $DWAN6
|
||||
script="${script}
|
||||
add element inet $ZAPRET_NFT_TABLE wanif6 { $elements }"
|
||||
}
|
||||
}
|
||||
for i in $OPENWRT_LAN; do
|
||||
network_get_device DEVICE $i
|
||||
DLAN="$DLAN $DEVICE"
|
||||
done
|
||||
[ -n "$DLAN" ] && {
|
||||
make_comma_list elements $DLAN
|
||||
script="${script}
|
||||
add element inet $ZAPRET_NFT_TABLE lanif { $elements }"
|
||||
}
|
||||
echo "$script" | nft -f -
|
||||
|
||||
[ "$FLOWOFFLOAD" = 'software' -o "$FLOWOFFLOAD" = 'hardware' ] && {
|
||||
ALLDEVS=$(for i in $DLAN $DWAN $DWAN6; do echo $i; done | sort -u | xargs)
|
||||
[ "$FLOWOFFLOAD" = 'hardware' ] && nft_hw_offload_supported $ALLDEVS && flags=offload
|
||||
nft_create_or_update_flowtable "$flags" $ALLDEVS
|
||||
}
|
||||
}
|
||||
|
||||
nft_fw_tpws4()
|
||||
{
|
||||
# $1 - filter ipv4
|
||||
# $2 - tpws port
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
nft_add_rule dnat_output skuid != $WS_USER oifname @wanif meta l4proto tcp $1 ip daddr != @nozapret dnat ip to $TPWS_LOCALHOST4:$2
|
||||
nft_add_rule dnat_pre iifname @lanif meta l4proto tcp $1 ip daddr != @nozapret dnat ip to $TPWS_LOCALHOST4:$2
|
||||
prepare_route_localnet
|
||||
}
|
||||
}
|
||||
nft_fw_tpws6()
|
||||
{
|
||||
# $1 - filter ipv6
|
||||
# $2 - tpws port
|
||||
|
||||
local lan DEVICE DNAT6
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
nft_add_rule dnat_output skuid != $WS_USER oifname @wanif6 meta l4proto tcp $1 ip6 daddr != @nozapret6 dnat ip6 to [::1]:$2
|
||||
for lan in $OPENWRT_LAN; do
|
||||
network_get_device DEVICE $lan
|
||||
[ -n "$DEVICE" ] || continue
|
||||
dnat6_target $lan DNAT6
|
||||
[ "$DNAT6" != '-' ] && nft_add_rule dnat_pre iifname $DEVICE meta l4proto tcp $1 ip6 daddr != @nozapret6 dnat ip6 to [$DNAT6]:$2
|
||||
done
|
||||
}
|
||||
}
|
||||
nft_fw_tpws()
|
||||
{
|
||||
# $1 - filter ipv4
|
||||
# $2 - filter ipv6
|
||||
# $3 - tpws port
|
||||
|
||||
nft_fw_tpws4 "$1" $3
|
||||
nft_fw_tpws6 "$2" $3
|
||||
}
|
||||
|
||||
nft_fw_nfqws_post4()
|
||||
{
|
||||
# $1 - filter ipv4
|
||||
# $2 - queue number
|
||||
|
||||
local DEVICE wan_iface rule
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
rule="oifname @wanif meta l4proto tcp $1 ip daddr != @nozapret"
|
||||
nft_add_rule postrouting $rule queue num $2 bypass
|
||||
nft_add_nfqws_flow_exempt_rule "$rule"
|
||||
}
|
||||
}
|
||||
nft_fw_nfqws_post6()
|
||||
{
|
||||
# $1 - filter ipv6
|
||||
# $2 - queue number
|
||||
|
||||
local DEVICE wan_iface rule
|
||||
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
rule="oifname @wanif6 meta l4proto tcp $1 ip6 daddr != @nozapret6"
|
||||
nft_add_rule postrouting $rule queue num $2 bypass
|
||||
nft_add_nfqws_flow_exempt_rule "$rule"
|
||||
}
|
||||
}
|
||||
nft_fw_nfqws_post()
|
||||
{
|
||||
# $1 - filter ipv4
|
||||
# $2 - filter ipv6
|
||||
# $3 - queue number
|
||||
|
||||
nft_fw_nfqws_post4 "$1" $3
|
||||
nft_fw_nfqws_post6 "$2" $3
|
||||
}
|
||||
|
Reference in New Issue
Block a user