root / vlans / if-up.d / vmrouter @ cf51ea5b
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#!/bin/bash |
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# |
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# if-up.d hook to do some weird networking stuff on IP-less interfaces |
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# |
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# Example: |
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# |
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# auto bond0.90 |
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# iface bond0.90 inet manual |
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# ip-routing-table 90 |
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# ip-routes 62.217.124.0/26 |
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# ip-gateway 62.217.124.1 |
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# ip-forwarding 1 |
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# ip-proxy-arp 1 |
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# arp-ip 62.217.124.58 |
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# |
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# iface bond0.90 inet6 manual |
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# ip-routing-table 90 |
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# ip-routes 2001:648:2ffc:105::/64 |
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# ip-gateway 2001:648:2ffc:105::1 |
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# ip-forwarding 1 |
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# ip-proxy-ndp 1 |
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|
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PATH=/usr/sbin:/usr/bin:/sbin:/bin |
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|
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ip link set $IFACE up |
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|
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if [ "$ADDRFAM" = "inet" ]; then |
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IP="ip" |
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elif [ "$ADDRFAM" = "inet6" ]; then |
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IP="ip -6" |
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else |
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exit 0 |
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fi |
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|
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if [ -n "$IF_IP_ROUTING_TABLE" ]; then |
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TABLE="table $IF_IP_ROUTING_TABLE" |
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else |
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# bail out early if there's no ip-routing-table defined |
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exit 0 |
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fi |
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|
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while $IP rule del iif $IFACE;do :; done 2>/dev/null |
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$IP rule add iif $IFACE $TABLE |
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|
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for route in $IF_IP_ROUTES; do |
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$IP route add $route dev $IFACE table main |
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$IP route add $route dev $IFACE $TABLE |
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done |
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|
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if [ -n "$IF_IP_GATEWAY" ]; then |
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$IP route add default via $IF_IP_GATEWAY dev $IFACE $TABLE |
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fi |
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|
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if [ -n "$IF_IP_FORWARDING" ]; then |
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[ "$ADDRFAM" = "inet" ] && echo 1 > /proc/sys/net/ipv4/conf/all/forwarding |
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[ "$ADDRFAM" = "inet6" ] && echo 1 > /proc/sys/net/ipv6/conf/all/forwarding |
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fi |
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|
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[ "$IF_IP_PROXY_NDP" = "1" ] && [ "$ADDRFAM" = "inet6" ] && echo 1 > /proc/sys/net/ipv6/conf/$IFACE/proxy_ndp |
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|
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if [ "$ADDRFAM" = "inet" ]; then |
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if [ -n "$IF_ARP_IP" ]; then |
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arptables -D OUTPUT -o $IFACE --opcode request -j mangle 2>/dev/null || true |
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arptables -A OUTPUT -o $IFACE --opcode request -j mangle --mangle-ip-s $IF_ARP_IP |
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fi |
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fi |