219 lines
7.0 KiB
Bash
Executable File
219 lines
7.0 KiB
Bash
Executable File
#!/bin/sh
|
|
# map.sh - IPv4-in-IPv6 tunnel backend
|
|
#
|
|
# Author: Steven Barth <cyrus@openwrt.org>
|
|
# Copyright (c) 2014 cisco Systems, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License version 2
|
|
# as published by the Free Software Foundation
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
|
|
[ -n "$INCLUDE_ONLY" ] || {
|
|
. /lib/functions.sh
|
|
. /lib/functions/network.sh
|
|
. ../netifd-proto.sh
|
|
init_proto "$@"
|
|
}
|
|
|
|
proto_map_setup() {
|
|
local cfg="$1"
|
|
local iface="$2"
|
|
local link="map-$cfg"
|
|
|
|
# uncomment for legacy MAP0 mode
|
|
#export LEGACY=1
|
|
|
|
local type mtu ttl tunlink zone
|
|
local rule ipaddr ip4prefixlen ip6prefix ip6prefixlen peeraddr ealen psidlen psid offset
|
|
json_get_vars type mtu ttl tunlink zone
|
|
json_get_vars rule ipaddr ip4prefixlen ip6prefix ip6prefixlen peeraddr ealen psidlen psid offset
|
|
|
|
[ -z "$zone" ] && zone="wan"
|
|
[ -z "$type" ] && type="map-e"
|
|
[ -z "$ip4prefixlen" ] && ip4prefixlen=32
|
|
|
|
( proto_add_host_dependency "$cfg" "::" "$tunlink" )
|
|
|
|
if [ -z "$rule" ]; then
|
|
rule="type=$type,ipv6prefix=$ip6prefix,prefix6len=$ip6prefixlen,ipv4prefix=$ipaddr,prefix4len=$ip4prefixlen"
|
|
[ -n "$psid" ] && rule="$rule,psid=$psid"
|
|
[ -n "$psidlen" ] && rule="$rule,psidlen=$psidlen"
|
|
[ -n "$offset" ] && rule="$rule,offset=$offset"
|
|
[ -n "$ealen" ] && rule="$rule,ealen=$ealen"
|
|
if [ "$type" = "map-t" ]; then
|
|
rule="$rule,dmr=$peeraddr"
|
|
else
|
|
rule="$rule,br=$peeraddr"
|
|
fi
|
|
fi
|
|
|
|
echo "rule=$rule" > /tmp/map-$cfg.rules
|
|
RULE_DATA=$(mapcalc ${tunlink:-\*} $rule)
|
|
if [ "$?" != 0 ]; then
|
|
proto_notify_error "$cfg" "INVALID_MAP_RULE"
|
|
proto_block_restart "$cfg"
|
|
return
|
|
fi
|
|
|
|
echo "$RULE_DATA" >> /tmp/map-$cfg.rules
|
|
eval $RULE_DATA
|
|
|
|
if [ -z "$RULE_BMR" ]; then
|
|
proto_notify_error "$cfg" "NO_MATCHING_PD"
|
|
proto_block_restart "$cfg"
|
|
return
|
|
fi
|
|
|
|
k=$RULE_BMR
|
|
if [ "$type" = "lw4o6" -o "$type" = "map-e" ]; then
|
|
proto_init_update "$link" 1
|
|
proto_add_ipv4_address $(eval "echo \$RULE_${k}_IPV4ADDR") "" "" ""
|
|
|
|
proto_add_tunnel
|
|
json_add_string mode ipip6
|
|
json_add_int mtu "${mtu:-1280}"
|
|
json_add_int ttl "${ttl:-64}"
|
|
json_add_string local $(eval "echo \$RULE_${k}_IPV6ADDR")
|
|
json_add_string remote $(eval "echo \$RULE_${k}_BR")
|
|
json_add_string link $(eval "echo \$RULE_${k}_PD6IFACE")
|
|
|
|
if [ "$type" = "map-e" ]; then
|
|
json_add_array "fmrs"
|
|
for i in $(seq $RULE_COUNT); do
|
|
[ "$(eval "echo \$RULE_${i}_FMR")" != 1 ] && continue
|
|
fmr="$(eval "echo \$RULE_${i}_IPV6PREFIX")/$(eval "echo \$RULE_${i}_PREFIX6LEN")"
|
|
fmr="$fmr,$(eval "echo \$RULE_${i}_IPV4PREFIX")/$(eval "echo \$RULE_${i}_PREFIX4LEN")"
|
|
fmr="$fmr,$(eval "echo \$RULE_${i}_EALEN"),$(eval "echo \$RULE_${i}_OFFSET")"
|
|
json_add_string "" "$fmr"
|
|
done
|
|
json_close_array
|
|
fi
|
|
|
|
proto_close_tunnel
|
|
elif [ "$type" = "map-t" -a -f "/proc/net/nat46/control" ]; then
|
|
proto_init_update "$link" 1
|
|
local style="MAP"
|
|
[ "$LEGACY" = 1 ] && style="MAP0"
|
|
|
|
echo add $link > /proc/net/nat46/control
|
|
local cfgstr="local.style $style local.v4 $(eval "echo \$RULE_${k}_IPV4PREFIX")/$(eval "echo \$RULE_${k}_PREFIX4LEN")"
|
|
cfgstr="$cfgstr local.v6 $(eval "echo \$RULE_${k}_IPV6PREFIX")/$(eval "echo \$RULE_${k}_PREFIX6LEN")"
|
|
cfgstr="$cfgstr local.ea-len $(eval "echo \$RULE_${k}_EALEN") local.psid-offset $(eval "echo \$RULE_${k}_OFFSET")"
|
|
cfgstr="$cfgstr remote.v4 0.0.0.0/0 remote.v6 $(eval "echo \$RULE_${k}_DMR") remote.style RFC6052 remote.ea-len 0 remote.psid-offset 0"
|
|
echo config $link $cfgstr > /proc/net/nat46/control
|
|
|
|
for i in $(seq $RULE_COUNT); do
|
|
[ "$(eval "echo \$RULE_${i}_FMR")" != 1 ] && continue
|
|
local cfgstr="remote.style $style remote.v4 $(eval "echo \$RULE_${i}_IPV4PREFIX")/$(eval "echo \$RULE_${i}_PREFIX4LEN")"
|
|
cfgstr="$cfgstr remote.v6 $(eval "echo \$RULE_${i}_IPV6PREFIX")/$(eval "echo \$RULE_${i}_PREFIX6LEN")"
|
|
cfgstr="$cfgstr remote.ea-len $(eval "echo \$RULE_${i}_EALEN") remote.psid-offset $(eval "echo \$RULE_${i}_OFFSET")"
|
|
echo insert $link $cfgstr > /proc/net/nat46/control
|
|
done
|
|
else
|
|
proto_notify_error "$cfg" "UNSUPPORTED_TYPE"
|
|
proto_block_restart "$cfg"
|
|
fi
|
|
|
|
proto_add_ipv4_route "0.0.0.0" 0
|
|
proto_add_data
|
|
[ "$zone" != "-" ] && json_add_string zone "$zone"
|
|
|
|
json_add_array firewall
|
|
if [ -z "$(eval "echo \$RULE_${k}_PORTSETS")" ]; then
|
|
json_add_object ""
|
|
json_add_string type nat
|
|
json_add_string target SNAT
|
|
json_add_string family inet
|
|
json_add_string snat_ip $(eval "echo \$RULE_${k}_IPV4ADDR")
|
|
json_close_object
|
|
else
|
|
for portset in $(eval "echo \$RULE_${k}_PORTSETS"); do
|
|
for proto in icmp tcp udp; do
|
|
json_add_object ""
|
|
json_add_string type nat
|
|
json_add_string target SNAT
|
|
json_add_string family inet
|
|
json_add_string proto "$proto"
|
|
json_add_boolean connlimit_ports 1
|
|
json_add_string snat_ip $(eval "echo \$RULE_${k}_IPV4ADDR")
|
|
json_add_string snat_port "$portset"
|
|
json_close_object
|
|
done
|
|
done
|
|
fi
|
|
if [ "$type" = "map-t" ]; then
|
|
json_add_object ""
|
|
json_add_string type rule
|
|
json_add_string family inet6
|
|
json_add_string proto all
|
|
json_add_string direction in
|
|
json_add_string dest "$zone"
|
|
json_add_string src "$zone"
|
|
json_add_string src_ip $(eval "echo \$RULE_${k}_IPV6ADDR")
|
|
json_add_string target ACCEPT
|
|
json_close_object
|
|
json_add_object ""
|
|
json_add_string type rule
|
|
json_add_string family inet6
|
|
json_add_string proto all
|
|
json_add_string direction out
|
|
json_add_string dest "$zone"
|
|
json_add_string src "$zone"
|
|
json_add_string dest_ip $(eval "echo \$RULE_${k}_IPV6ADDR")
|
|
json_add_string target ACCEPT
|
|
json_close_object
|
|
proto_add_ipv6_route $(eval "echo \$RULE_${k}_IPV6ADDR") 128
|
|
fi
|
|
json_close_array
|
|
proto_close_data
|
|
|
|
proto_send_update "$cfg"
|
|
|
|
if [ "$type" = "lw4o6" -o "$type" = "map-e" ]; then
|
|
json_init
|
|
json_add_string name "${cfg}_local"
|
|
json_add_string ifname "@$(eval "echo \$RULE_${k}_PD6IFACE")"
|
|
json_add_string proto "static"
|
|
json_add_array ip6addr
|
|
json_add_string "" "$(eval "echo \$RULE_${k}_IPV6ADDR")"
|
|
json_close_array
|
|
json_close_object
|
|
ubus call network add_dynamic "$(json_dump)"
|
|
fi
|
|
}
|
|
|
|
proto_map_teardown() {
|
|
local cfg="$1"
|
|
ifdown "${cfg}_local"
|
|
rm -f /tmp/map-$cfg.rules
|
|
}
|
|
|
|
proto_map_init_config() {
|
|
no_device=1
|
|
available=1
|
|
|
|
proto_config_add_string "rule"
|
|
proto_config_add_string "ipaddr"
|
|
proto_config_add_int "ip4prefixlen"
|
|
proto_config_add_string "ip6prefix"
|
|
proto_config_add_int "ip6prefixlen"
|
|
proto_config_add_string "peeraddr"
|
|
proto_config_add_int "psidlen"
|
|
proto_config_add_int "psid"
|
|
proto_config_add_int "offset"
|
|
|
|
proto_config_add_string "tunlink"
|
|
proto_config_add_int "mtu"
|
|
proto_config_add_int "ttl"
|
|
proto_config_add_string "zone"
|
|
}
|
|
|
|
[ -n "$INCLUDE_ONLY" ] || {
|
|
add_protocol map
|
|
}
|