mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 07:22:33 +00:00
34528c4807
Quote resolveip hostname argument to avoid bad shell injections. While at it fix pattern match logic in case multiple IPv6 addresses are returned for a hostname as they're seperated by newline by resolveip and not a white space Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
107 lines
2.2 KiB
Bash
Executable File
107 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
|
|
# dslite.sh - IPv4-in-IPv6 tunnel backend
|
|
# Copyright (c) 2013 OpenWrt.org
|
|
|
|
[ -n "$INCLUDE_ONLY" ] || {
|
|
. /lib/functions.sh
|
|
. /lib/functions/network.sh
|
|
. ../netifd-proto.sh
|
|
init_proto "$@"
|
|
}
|
|
|
|
proto_dslite_setup() {
|
|
local cfg="$1"
|
|
local iface="$2"
|
|
local link="ds-$cfg"
|
|
local remoteip6
|
|
|
|
local mtu ttl peeraddr ip6addr tunlink zone weakif
|
|
json_get_vars mtu ttl peeraddr ip6addr tunlink zone weakif
|
|
|
|
[ -z "$peeraddr" ] && {
|
|
proto_notify_error "$cfg" "MISSING_ADDRESS"
|
|
proto_block_restart "$cfg"
|
|
return
|
|
}
|
|
|
|
( proto_add_host_dependency "$cfg" "::" "$tunlink" )
|
|
|
|
remoteip6=$(resolveip -6 "$peeraddr")
|
|
if [ -z "$remoteip6" ]; then
|
|
sleep 3
|
|
remoteip6=$(resolveip -6 "$peeraddr")
|
|
if [ -z "$remoteip6" ]; then
|
|
proto_notify_error "$cfg" "AFTR_DNS_FAIL"
|
|
return
|
|
fi
|
|
fi
|
|
|
|
for ip6 in $remoteip6; do
|
|
peeraddr=$ip6
|
|
break
|
|
done
|
|
|
|
[ -z "$ip6addr" ] && {
|
|
local wanif="$tunlink"
|
|
if [ -z "$wanif" ] && ! network_find_wan6 wanif; then
|
|
proto_notify_error "$cfg" "NO_WAN_LINK"
|
|
return
|
|
fi
|
|
|
|
if ! network_get_ipaddr6 ip6addr "$wanif"; then
|
|
[ -z "$weakif" ] && weakif="lan"
|
|
if ! network_get_ipaddr6 ip6addr "$weakif"; then
|
|
proto_notify_error "$cfg" "NO_WAN_LINK"
|
|
return
|
|
fi
|
|
fi
|
|
}
|
|
|
|
proto_init_update "$link" 1
|
|
proto_add_ipv4_route "0.0.0.0" 0
|
|
proto_add_ipv4_address "192.0.0.2" "" "" "192.0.0.1"
|
|
|
|
proto_add_tunnel
|
|
json_add_string mode ipip6
|
|
json_add_int mtu "${mtu:-1280}"
|
|
json_add_int ttl "${ttl:-64}"
|
|
json_add_string local "$ip6addr"
|
|
json_add_string remote "$peeraddr"
|
|
[ -n "$tunlink" ] && json_add_string link "$tunlink"
|
|
proto_close_tunnel
|
|
|
|
proto_add_data
|
|
[ -n "$zone" ] && json_add_string zone "$zone"
|
|
|
|
json_add_array firewall
|
|
json_add_object ""
|
|
json_add_string type nat
|
|
json_add_string target ACCEPT
|
|
json_close_object
|
|
json_close_array
|
|
proto_close_data
|
|
|
|
proto_send_update "$cfg"
|
|
}
|
|
|
|
proto_dslite_teardown() {
|
|
local cfg="$1"
|
|
}
|
|
|
|
proto_dslite_init_config() {
|
|
no_device=1
|
|
available=1
|
|
|
|
proto_config_add_string "ip6addr"
|
|
proto_config_add_string "peeraddr"
|
|
proto_config_add_string "tunlink"
|
|
proto_config_add_int "mtu"
|
|
proto_config_add_int "ttl"
|
|
proto_config_add_string "zone"
|
|
proto_config_add_string "weakif"
|
|
}
|
|
|
|
[ -n "$INCLUDE_ONLY" ] || {
|
|
add_protocol dslite
|
|
}
|