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init: deduplicate shell code
This commit is contained in:
bol-van
parent
717b337291
commit
5a1ca8d481
161
common/ipt.sh
161
common/ipt.sh
@ -83,6 +83,167 @@ filter_apply_ipset_target()
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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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ipt_print_op()
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{
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if [ "$1" = "1" ]; then
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echo "Adding ip$4tables rule for $3 : $2"
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else
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echo "Deleting ip$4tables rule for $3 : $2"
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fi
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}
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_fw_tpws4()
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{
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# $1 - 1 - add, 0 - del
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# $2 - iptable filter for ipv4
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# $3 - tpws port
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# $4 - lan interface names space separated
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# $5 - wan interface names space separated
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[ "$DISABLE_IPV4" = "1" ] || {
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local i rule
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[ "$1" = 1 ] && prepare_tpws_fw4
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ipt_print_op $1 "$2" "tpws (port $3)"
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rule="-p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3"
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for i in $4 ; do
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ipt_add_del $1 PREROUTING -t nat -i $i $rule
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done
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rule="-m owner ! --uid-owner $WS_USER $rule"
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if [ -n "$5" ]; then
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for i in $5; do
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ipt_add_del $1 OUTPUT -t nat -o $i $rule
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done
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else
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ipt_add_del $1 OUTPUT -t nat $rule
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fi
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}
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}
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_fw_tpws6()
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{
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# $1 - 1 - add, 0 - del
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# $2 - iptable filter for ipv6
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# $3 - tpws port
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# $4 - lan interface names space separated
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# $5 - wan interface names space separated
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[ "$DISABLE_IPV6" = "1" ] || {
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local i rule DNAT6
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ipt_print_op $1 "$2" "tpws (port $3)" 6
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rule="-p tcp $2 $IPSET_EXCLUDE6 dst"
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for i in $4 ; do
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_dnat6_target $i DNAT6
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[ -n "$DNAT6" -a "$DNAT6" != "-" ] && ipt6_add_del $1 PREROUTING -t nat -i $i $rule -j DNAT --to [$DNAT6]:$3
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done
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rule="-m owner ! --uid-owner $WS_USER $rule -j DNAT --to [::1]:$3"
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if [ -n "$5" ]; then
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for i in $5; do
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ipt6_add_del $1 OUTPUT -t nat -o $i $rule
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done
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else
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ipt6_add_del $1 OUTPUT -t nat $rule
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fi
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}
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}
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fw_tpws()
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{
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# $1 - 1 - add, 0 - del
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# $2 - iptable filter for ipv4
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# $3 - iptable filter for ipv6
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# $4 - tpws port
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fw_tpws4 $1 "$2" $4
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fw_tpws6 $1 "$3" $4
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}
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_fw_nfqws_post4()
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{
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# $1 - 1 - add, 0 - del
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# $2 - iptable filter for ipv4
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# $3 - queue number
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# $4 - wan interface names space separated
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[ "$DISABLE_IPV4" = "1" ] || {
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local i
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ipt_print_op $1 "$2" "nfqws postrouting (qnum $3)"
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rule="-p tcp $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass"
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if [ -n "$4" ] ; then
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for i in $4; do
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ipt_add_del $1 POSTROUTING -t mangle -o $i $rule
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done
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else
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ipt_add_del $1 POSTROUTING -t mangle $rule
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fi
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}
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}
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_fw_nfqws_post6()
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{
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# $1 - 1 - add, 0 - del
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# $2 - iptable filter for ipv6
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# $3 - queue number
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# $4 - wan interface names space separated
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[ "$DISABLE_IPV6" = "1" ] || {
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local i
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ipt_print_op $1 "$2" "nfqws postrouting (qnum $3)" 6
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rule="-p tcp $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass"
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if [ -n "$4" ] ; then
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for i in $4; do
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ipt6_add_del $1 POSTROUTING -t mangle -o $i $rule
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done
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else
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ipt6_add_del $1 POSTROUTING -t mangle $rule
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fi
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}
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}
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fw_nfqws_post()
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{
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# $1 - 1 - add, 0 - del
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# $2 - iptable filter for ipv4
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# $3 - iptable filter for ipv6
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# $4 - queue number
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fw_nfqws_post4 $1 "$2" $4
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fw_nfqws_post6 $1 "$3" $4
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}
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zapret_do_firewall_ipt()
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{
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# $1 - 1 - add, 0 - del
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@ -49,3 +49,63 @@ wait_ifup()
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do :; done
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false
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}
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_dnat6_target()
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{
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# $1 - interface 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 $2=''
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[ -n "$DNAT6_TARGET" ] || {
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local ct=0
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while
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DNAT6_TARGET=$(get_ipv6_linklocal $1)
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[ -n "$DNAT6_TARGET" ] && break
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[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break
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echo $1: 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 $1: no link local. getting global
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DNAT6_TARGET=$(get_ipv6_global $1)
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[ -n "$DNAT6_TARGET" ] || {
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echo $1: 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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# $2,$3,... - interface names
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[ "$DISABLE_IPV4" = "1" ] || {
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local enable="$1"
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shift
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while [ -n "$1" ]; do
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sysctl -q -w net.ipv4.conf.$1.route_localnet="$enable"
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shift
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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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@ -164,7 +164,8 @@ nft_add_nfqws_flow_exempt_rule()
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{
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# $1 - rule (must be all filters in one var)
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nft_add_rule flow_offload $(nft_clean_nfqws_rule $1) return comment \"direct flow offloading exemption\"
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nft_add_rule flow_offload $(nft_reverse_nfqws_rule $1) return comment \"reverse flow offloading exemption\"
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# do not need this because of oifname @wanif/@wanif6 filter in forward chain
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#nft_add_rule flow_offload $(nft_reverse_nfqws_rule $1) return comment \"reverse flow offloading exemption\"
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}
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nft_hw_offload_supported()
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@ -181,7 +182,11 @@ nft_hw_offload_supported()
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nft_apply_flow_offloading()
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{
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# ft can be absent
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nft_add_rule flow_offload meta l4proto "{ tcp, udp }" flow add @ft 2>/dev/null && nft_add_rule forward jump flow_offload
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nft_add_rule flow_offload meta l4proto "{ tcp, udp }" flow add @ft 2>/dev/null && {
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# allow only outgoing packets to initiate flow offload
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nft_add_rule forward oifname @wanif jump flow_offload
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nft_add_rule forward oifname @wanif6 jump flow_offload
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}
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}
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@ -260,7 +265,8 @@ flush set inet $ZAPRET_NFT_TABLE lanif"
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case "$FLOWOFFLOAD" in
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software)
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ALLDEVS=$(unique $1 $2 $3)
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nft_create_or_update_flowtable '' $ALLDEVS
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# unbound flowtable may cause error in older nft version
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nft_create_or_update_flowtable '' $ALLDEVS 2>/dev/null
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;;
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hardware)
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ALLDEVS=$(unique $1 $2 $3)
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@ -285,6 +291,93 @@ nft_only()
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esac
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}
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nft_print_op()
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{
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echo "Adding nftables ipv$3 rule for $2 : $1"
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}
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_nft_fw_tpws4()
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{
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# $1 - filter ipv4
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# $2 - tpws port
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# $4 - not-empty if wan interface filtering required
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[ "$DISABLE_IPV4" = "1" ] || {
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local filter="$1" port="$2"
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nft_print_op "$filter" "tpws (port $2)" 4
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nft_add_rule dnat_output skuid != $WS_USER ${3:+oifname @wanif }meta l4proto tcp $filter ip daddr != @nozapret dnat ip to $TPWS_LOCALHOST4:$port
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nft_add_rule dnat_pre iifname @lanif meta l4proto tcp $filter ip daddr != @nozapret dnat ip to $TPWS_LOCALHOST4:$port
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prepare_route_localnet
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}
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}
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_nft_fw_tpws6()
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{
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# $1 - filter ipv6
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# $2 - tpws port
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# $3 - lan interface names space separated
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# $4 - not-empty if wan interface filtering required
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[ "$DISABLE_IPV6" = "1" ] || {
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local filter="$1" port="$2" DNAT6 i
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nft_print_op "$filter" "tpws (port $port)" 6
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nft_add_rule dnat_output skuid != $WS_USER ${4:+oifname @wanif6 }meta l4proto tcp $filter ip6 daddr != @nozapret6 dnat ip6 to [::1]:$port
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_set_route_localnet 1 $3
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for i in $3; do
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_dnat6_target $i DNAT6
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[ -n "$DNAT6" -a "$DNAT6" != '-' ] && nft_add_rule dnat_pre iifname $i meta l4proto tcp $filter ip6 daddr != @nozapret6 dnat ip6 to [$DNAT6]:$port
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shift
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done
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}
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}
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nft_fw_tpws()
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{
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# $1 - filter ipv4
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# $2 - filter ipv6
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# $3 - tpws port
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nft_fw_tpws4 "$1" $3
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nft_fw_tpws6 "$2" $3
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}
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_nft_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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# $3 - not-empty if wan interface filtering required
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[ "$DISABLE_IPV4" = "1" ] || {
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local filter="$1" port="$2" rule
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nft_print_op "$filter" "nfqws postrouting (qnum $port)" 4
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rule="${3:+oifname @wanif }meta l4proto tcp $filter ip daddr != @nozapret"
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nft_add_rule postrouting $rule queue num $port bypass
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nft_add_nfqws_flow_exempt_rule "$rule"
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}
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}
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_nft_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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# $3 - not-empty if wan interface filtering required
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[ "$DISABLE_IPV6" = "1" ] || {
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local filter="$1" port="$2" rule
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nft_print_op "$filter" "nfqws postrouting (qnum $port)" 6
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rule="${3:+oifname @wanif6 }meta l4proto tcp $filter ip6 daddr != @nozapret6"
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nft_add_rule postrouting $rule queue num $port bypass
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nft_add_nfqws_flow_exempt_rule "$rule"
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}
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}
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nft_fw_nfqws_post()
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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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nft_fw_nfqws_post4 "$1" $3
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nft_fw_nfqws_post6 "$2" $3
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}
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zapret_reload_ifsets()
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{
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nft_only nft_create_table ; nft_fill_ifsets_overload
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@ -44,261 +44,109 @@ NFQWS_OPT_DESYNC_HTTPS6="${NFQWS_OPT_DESYNC_HTTPS6:-$NFQWS_OPT_DESYNC_HTTPS}"
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# we use low level function from network.sh to avoid this limitation
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# it can change theoretically and stop working
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network_find_wan_all()
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network_find_wan4_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 $1
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}
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network_find_wan_all()
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{
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network_find_wan4_all "$@"
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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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}
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route_localnet()
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{
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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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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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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 - $ct)) seconds ...
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ct=$(($ct+1))
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sleep 1
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do :; done
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[ -n "$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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network_is_up $1 || {
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[ -n "$2" ] && eval $2=''
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return
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}
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[ -n "$2" ] && eval $2="$DNAT6_TARGET"
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}
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local DEVICE
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network_get_device DEVICE $1
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_dnat6_target $DEVICE $2
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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=$1
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done
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}
|
||||
}
|
||||
prepare_route_localnet()
|
||||
{
|
||||
set_route_localnet 1
|
||||
}
|
||||
unprepare_route_localnet()
|
||||
{
|
||||
set_route_localnet 0
|
||||
}
|
||||
prepare_tpws_fw4()
|
||||
{
|
||||
# otherwise linux kernel will treat 127.0.0.0/8 as "martian" ip and refuse routing to it
|
||||
# NOTE : kernels <3.6 do not have this feature. consider upgrading or change DNAT to REDIRECT and do not bind to 127.0.0.0/8
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
iptables -N input_rule_zapret 2>/dev/null
|
||||
ipt input_rule_zapret -d $TPWS_LOCALHOST4 -j RETURN
|
||||
ipta input_rule_zapret -d 127.0.0.0/8 -j DROP
|
||||
ipt INPUT ! -i lo -j input_rule_zapret
|
||||
|
||||
prepare_route_localnet
|
||||
}
|
||||
}
|
||||
unprepare_tpws_fw4()
|
||||
{
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
unprepare_route_localnet
|
||||
|
||||
ipt_del INPUT ! -i lo -j input_rule_zapret
|
||||
iptables -F input_rule_zapret 2>/dev/null
|
||||
iptables -X input_rule_zapret 2>/dev/null
|
||||
}
|
||||
}
|
||||
unprepare_tpws_fw()
|
||||
{
|
||||
unprepare_tpws_fw4
|
||||
local DLAN
|
||||
call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
|
||||
_set_route_localnet $1 $DLAN
|
||||
}
|
||||
|
||||
fw_nfqws_pre4()
|
||||
|
||||
fw_nfqws_post_x()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $2 - filter
|
||||
# $3 - queue number
|
||||
# $4 - ip version : 4 or 6
|
||||
|
||||
local DEVICE wan_iface
|
||||
network_find_wan${4}_all ifaces
|
||||
call_for_multiple_items network_get_device DWAN "$ifaces"
|
||||
|
||||
[ "$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 PREROUTING -t mangle -i $DEVICE -p tcp $2 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $3 --queue-bypass
|
||||
done
|
||||
}
|
||||
}
|
||||
fw_nfqws_pre6()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv6
|
||||
# $3 - queue number
|
||||
|
||||
local DEVICE wan_iface
|
||||
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
network_find_wan6_all wan_iface
|
||||
for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
|
||||
ipt6_add_del $1 PREROUTING -t mangle -i $DEVICE -p tcp $2 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $3 --queue-bypass
|
||||
done
|
||||
}
|
||||
}
|
||||
fw_nfqws_pre()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - filter ipv6
|
||||
# $4 - queue number
|
||||
|
||||
fw_nfqws_pre4 $1 "$2" $4
|
||||
fw_nfqws_pre6 $1 "$3" $4
|
||||
_fw_nfqws_post${4} $1 "$2" $3 "$(unique $DWAN)"
|
||||
}
|
||||
fw_nfqws_post4()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - queue number
|
||||
|
||||
local DEVICE wan_iface
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
network_find_wan_all wan_iface
|
||||
for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
|
||||
ipt_add_del $1 POSTROUTING -t mangle -o $DEVICE -p tcp $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass
|
||||
done
|
||||
}
|
||||
fw_nfqws_post_x $1 "$2" $3 4
|
||||
}
|
||||
fw_nfqws_post6()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv6
|
||||
# $3 - queue number
|
||||
|
||||
local DEVICE wan_iface
|
||||
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
network_find_wan6_all wan_iface
|
||||
for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
|
||||
ipt6_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_x $1 "$2" $3 6
|
||||
}
|
||||
fw_nfqws_post()
|
||||
fw_tpws_x()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - filter ipv6
|
||||
# $4 - queue number
|
||||
# $2 - filter
|
||||
# $3 - tpws port
|
||||
# $4 - ip version : 4 or 6
|
||||
|
||||
fw_nfqws_post4 $1 "$2" $4
|
||||
fw_nfqws_post6 $1 "$3" $4
|
||||
local script ifaces DLAN DWAN
|
||||
|
||||
call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
|
||||
|
||||
network_find_wan${4}_all ifaces
|
||||
call_for_multiple_items network_get_device DWAN "$ifaces"
|
||||
|
||||
_fw_tpws${4} $1 "$2" $3 "$DLAN" "$(unique $DWAN)"
|
||||
}
|
||||
|
||||
|
||||
IPT_OWNER="-m owner ! --uid-owner $WS_USER"
|
||||
fw_tpws4()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - tpws port
|
||||
|
||||
local lan DEVICE ext_iface wan_iface
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
network_find_wan_all wan_iface
|
||||
for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
|
||||
ipt_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_tpws_x $1 "$2" $3 4
|
||||
}
|
||||
fw_tpws6()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv6
|
||||
# $3 - tpws port
|
||||
|
||||
local lan DEVICE ext_iface wan_iface DNAT6
|
||||
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
network_find_wan6_all wan_iface
|
||||
for ext_iface in $wan_iface; do
|
||||
network_get_device DEVICE $ext_iface
|
||||
ipt6_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_x $1 "$2" $3 6
|
||||
}
|
||||
fw_tpws()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - filter ipv4
|
||||
# $3 - filter ipv6
|
||||
# $4 - tpws port
|
||||
|
||||
fw_tpws4 $1 "$2" $4
|
||||
fw_tpws6 $1 "$3" $4
|
||||
nft_fw_tpws4()
|
||||
{
|
||||
_nft_fw_tpws4 "$1" $2 always_apply_wan_filter
|
||||
}
|
||||
nft_fw_tpws6()
|
||||
{
|
||||
local script ifaces DLAN
|
||||
call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
|
||||
_nft_fw_tpws6 "$1" $2 "$DLAN" always_apply_wan_filter
|
||||
}
|
||||
nft_fw_nfqws_post4()
|
||||
{
|
||||
_nft_fw_nfqws_post4 "$1" $2 always_apply_wan_filter
|
||||
}
|
||||
nft_fw_nfqws_post6()
|
||||
{
|
||||
_nft_fw_nfqws_post6 "$1" $2 always_apply_wan_filter
|
||||
}
|
||||
|
||||
|
||||
@ -384,13 +232,14 @@ flow_offloading_unexempt()
|
||||
}
|
||||
|
||||
|
||||
|
||||
nft_fill_ifsets_overload()
|
||||
{
|
||||
local script ifaces DLAN DWAN DWAN6
|
||||
|
||||
call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
|
||||
|
||||
network_find_wan_all ifaces
|
||||
network_find_wan4_all ifaces
|
||||
call_for_multiple_items network_get_device DWAN "$ifaces"
|
||||
|
||||
network_find_wan6_all ifaces
|
||||
@ -399,75 +248,12 @@ nft_fill_ifsets_overload()
|
||||
nft_fill_ifsets "$DLAN" "$DWAN" "$DWAN6"
|
||||
}
|
||||
|
||||
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
|
||||
# $2 - queue number
|
||||
|
||||
local rule
|
||||
|
||||
[ "$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
|
||||
# $2 - queue number
|
||||
|
||||
local rule
|
||||
|
||||
[ "$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" $3
|
||||
local DLAN
|
||||
call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
|
||||
_nft_fw_tpws6 "$1" $2 "$DLAN"
|
||||
}
|
||||
|
||||
@ -98,245 +98,52 @@ IPSET_EXCLUDE="-m set ! --match-set nozapret"
|
||||
IPSET_EXCLUDE6="-m set ! --match-set nozapret6"
|
||||
|
||||
|
||||
# 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 ::)
|
||||
|
||||
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)
|
||||
|
||||
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 - $ct)) seconds ...
|
||||
ct=$(($ct+1))
|
||||
sleep 1
|
||||
do :; done
|
||||
|
||||
[ -n "$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"
|
||||
_dnat6_target "$@"
|
||||
}
|
||||
|
||||
set_route_localnet()
|
||||
{
|
||||
# $1 - 1 = enable, 0 = disable
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
local lan
|
||||
for lan in $IFACE_LAN ; do
|
||||
sysctl -q -w net.ipv4.conf.$lan.route_localnet=$1
|
||||
done
|
||||
}
|
||||
}
|
||||
prepare_route_localnet()
|
||||
{
|
||||
set_route_localnet 1
|
||||
}
|
||||
unprepare_route_localnet()
|
||||
{
|
||||
set_route_localnet 0
|
||||
}
|
||||
prepare_tpws_fw4()
|
||||
{
|
||||
# otherwise linux kernel will treat 127.0.0.0/8 as "martian" ip and refuse routing to it
|
||||
# NOTE : kernels <3.6 do not have this feature. consider upgrading or change DNAT to REDIRECT and do not bind to 127.0.0.0/8
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
[ -n "$IFACE_LAN" ] && {
|
||||
local lan
|
||||
iptables -N input_rule_zapret 2>/dev/null
|
||||
iptables -F input_rule_zapret
|
||||
iptables -A input_rule_zapret -d $TPWS_LOCALHOST4 -j RETURN
|
||||
iptables -A input_rule_zapret -d 127.0.0.0/8 -j DROP
|
||||
ipt INPUT ! -i lo -j input_rule_zapret
|
||||
prepare_route_localnet
|
||||
}
|
||||
}
|
||||
}
|
||||
unprepare_tpws_fw4()
|
||||
{
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
[ -n "$IFACE_LAN" ] && {
|
||||
local lan
|
||||
unprepare_route_localnet
|
||||
ipt_del INPUT ! -i lo -j input_rule_zapret
|
||||
iptables -F input_rule_zapret 2>/dev/null
|
||||
iptables -X input_rule_zapret 2>/dev/null
|
||||
}
|
||||
}
|
||||
}
|
||||
unprepare_tpws_fw()
|
||||
{
|
||||
unprepare_tpws_fw4
|
||||
_set_route_localnet $1 "$IFACE_LAN"
|
||||
}
|
||||
|
||||
|
||||
ipt_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
|
||||
ipt_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" ] || {
|
||||
ipt_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
|
||||
}
|
||||
|
||||
|
||||
fw_nfqws_pre4()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - iptable filter for ipv4
|
||||
# $3 - queue number
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
ipt_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
|
||||
}
|
||||
}
|
||||
fw_nfqws_pre6()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - iptable filter for ipv6
|
||||
# $3 - queue number
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
ipt_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
|
||||
}
|
||||
}
|
||||
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
|
||||
}
|
||||
fw_nfqws_post4()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - iptable filter for ipv4
|
||||
# $3 - queue number
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
ipt_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
|
||||
}
|
||||
_fw_nfqws_post4 $1 "$2" $3 "$IFACE_WAN"
|
||||
}
|
||||
fw_nfqws_post6()
|
||||
{
|
||||
# $1 - 1 - add, 0 - del
|
||||
# $2 - iptable filter for ipv6
|
||||
# $3 - queue number
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
ipt_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
|
||||
}
|
||||
_fw_nfqws_post6 $1 "$2" $3 "$IFACE_WAN"
|
||||
}
|
||||
fw_nfqws_post()
|
||||
fw_tpws4()
|
||||
{
|
||||
# $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
|
||||
_fw_tpws4 $1 "$2" $3 "$IFACE_LAN" "$IFACE_WAN"
|
||||
}
|
||||
fw_tpws6()
|
||||
{
|
||||
_fw_tpws6 $1 "$2" $3 "$IFACE_LAN" "$IFACE_WAN"
|
||||
}
|
||||
nft_fw_tpws4()
|
||||
{
|
||||
_nft_fw_tpws4 "$1" $2 "$IFACE_WAN"
|
||||
}
|
||||
nft_fw_tpws6()
|
||||
{
|
||||
_nft_fw_tpws6 "$1" $2 "$IFACE_LAN" "$IFACE_WAN"
|
||||
}
|
||||
nft_fw_nfqws_post4()
|
||||
{
|
||||
_nft_fw_nfqws_post4 "$1" $2 "$IFACE_WAN"
|
||||
}
|
||||
nft_fw_nfqws_post6()
|
||||
{
|
||||
_nft_fw_nfqws_post6 "$1" $2 "$IFACE_WAN"
|
||||
}
|
||||
nft_fill_ifsets_overload()
|
||||
{
|
||||
nft_fill_ifsets "$IFACE_LAN" "$IFACE_WAN" "$IFACE_WAN"
|
||||
}
|
||||
|
||||
|
||||
filter_apply_hostlist_target()
|
||||
{
|
||||
@ -520,90 +327,3 @@ zapret_stop_daemons()
|
||||
zapret_do_daemons 0 "$@"
|
||||
}
|
||||
|
||||
|
||||
nft_fill_ifsets_overload()
|
||||
{
|
||||
nft_fill_ifsets "$IFACE_LAN" "$IFACE_WAN" "$IFACE_WAN"
|
||||
}
|
||||
|
||||
nft_print_op()
|
||||
{
|
||||
echo "Adding nftables ipv$3 rule for $2 : $1"
|
||||
}
|
||||
|
||||
nft_fw_tpws4()
|
||||
{
|
||||
# $1 - filter ipv4
|
||||
# $2 - tpws port
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
nft_print_op "$1" "tpws (port $2)" 4
|
||||
nft_add_rule dnat_output skuid != $WS_USER ${IFACE_WAN:+oifname @wanif }meta l4proto tcp $1 ip daddr != @nozapret dnat ip to $TPWS_LOCALHOST4:$2
|
||||
[ -n "$IFACE_LAN" ] && {
|
||||
prepare_route_localnet
|
||||
nft_add_rule dnat_pre iifname @lanif meta l4proto tcp $1 ip daddr != @nozapret dnat ip to $TPWS_LOCALHOST4:$2
|
||||
}
|
||||
}
|
||||
}
|
||||
nft_fw_tpws6()
|
||||
{
|
||||
# $1 - filter ipv6
|
||||
# $2 - tpws port
|
||||
|
||||
local lan DNAT6
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
nft_print_op "$1" "tpws (port $2)" 6
|
||||
nft_add_rule dnat_output skuid != $WS_USER ${IFACE_WAN:+oifname @wanif6 }meta l4proto tcp $1 ip6 daddr != @nozapret6 dnat ip6 to [::1]:$2
|
||||
for lan in $IFACE_LAN ; do
|
||||
dnat6_target $lan DNAT6
|
||||
[ "$DNAT6" != '-' ] && nft_add_rule dnat_pre iifname $lan 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
|
||||
# $2 - queue number
|
||||
|
||||
local rule
|
||||
|
||||
[ "$DISABLE_IPV4" = "1" ] || {
|
||||
nft_print_op "$1" "nfqws postrouting (qnum $2)" 4
|
||||
rule="${IFACE_WAN:+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
|
||||
# $2 - queue number
|
||||
|
||||
local rule
|
||||
|
||||
[ "$DISABLE_IPV6" = "1" ] || {
|
||||
nft_print_op "$1" "nfqws postrouting (qnum $2)" 6
|
||||
rule="${IFACE_WAN:+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
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user