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imporved gateway nat, and bypass broadcast things

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fancy
2020-05-01 11:26:46 +08:00
parent 6ae12bf5c4
commit f55b09ec12
3 changed files with 15 additions and 6 deletions
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13
cgroup-tproxy.sh
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@@ -84,8 +84,8 @@ case $i in
ip -6 rule delete fwmark $fwmark lookup $table
ip -6 route flush table $table
## may not exist, just ignore, and tracking their existence is not reliable
iptables -t nat -D POSTROUTING -m addrtype ! --src-type LOCAL -j MASQUERADE &> /dev/null
ip6tables -t nat -D POSTROUTING -m addrtype ! --src-type LOCAL -j MASQUERADE &> /dev/null
iptables -t nat -D POSTROUTING -m owner ! --socket-exists -j MASQUERADE &> /dev/null
ip6tables -t nat -D POSTROUTING -m owner ! --socket-exists -j MASQUERADE &> /dev/null
exit 0
;;
--config=*)
@@ -128,6 +128,8 @@ iptables -t mangle -N TPROXY_OUT
iptables -t mangle -A TPROXY_OUT -o lo -j RETURN
iptables -t mangle -A TPROXY_OUT -p icmp -j RETURN
iptables -t mangle -A TPROXY_OUT -m connmark --mark $make_newin -j RETURN
iptables -t mangle -A TPROXY_OUT -m pkttype --pkt-type broadcast -j RETURN
iptables -t mangle -A TPROXY_OUT -m pkttype --pkt-type multicast -j RETURN
iptables -t mangle -A TPROXY_OUT -m mark --mark $mark_noproxy -j RETURN
iptables -t mangle -A TPROXY_OUT -m cgroup --path $cgroup_noproxy -j RETURN
iptables -t mangle -A TPROXY_OUT -m cgroup --path $cgroup_proxy -j MARK --set-mark $fwmark
@@ -155,6 +157,8 @@ ip6tables -t mangle -A PREROUTING -j TPROXY_PRE
ip6tables -t mangle -N TPROXY_OUT
ip6tables -t mangle -A TPROXY_OUT -o lo -j RETURN
ip6tables -t mangle -A TPROXY_OUT -p icmp -j RETURN
ip6tables -t mangle -A TPROXY_OUT -m pkttype --pkt-type broadcast -j RETURN
ip6tables -t mangle -A TPROXY_OUT -m pkttype --pkt-type multicast -j RETURN
ip6tables -t mangle -A TPROXY_OUT -m connmark --mark $make_newin -j RETURN
ip6tables -t mangle -A TPROXY_OUT -m mark --mark $mark_noproxy -j RETURN
ip6tables -t mangle -A TPROXY_OUT -m cgroup --path $cgroup_noproxy -j RETURN
@@ -193,13 +197,14 @@ ip6tables -t mangle -I TPROXY_PRE -m addrtype ! --src-type LOCAL -m conntrack --
## message for user
cat << DOC
noproxy cgroup: $cgroup_noproxy
proxied cgroup: $cgroup_proxy
DOC
if $enable_gateway; then
iptables -t nat -A POSTROUTING -m addrtype ! --src-type LOCAL -j MASQUERADE
ip6tables -t nat -A POSTROUTING -m addrtype ! --src-type LOCAL -j MASQUERADE
iptables -t nat -A POSTROUTING -m owner ! --socket-exists -j MASQUERADE
ip6tables -t nat -A POSTROUTING -m owner ! --socket-exists -j MASQUERADE
sysctl -w net.ipv4.ip_forward=1
sysctl -w net.ipv6.conf.all.forwarding=1
echo "gateway enabled"