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#!/bin/sh
if [ "$ACTION" = ifup ]; then
. /etc/functions.sh
include /lib/network
scan_interfaces
update_tunnel() {
local cfg="$1"
local proto
config_get proto "$cfg" proto
[ "$proto" = 6in4 ] || return 0
local wandev
config_get wandev "$cfg" wan_device "$(find_6in4_wanif)"
[ "$wandev" = "$DEVICE" ] || return 0
local wanip=$(find_6in4_wanip "$wandev")
[ -n "$wanip" ] && {
local tunnelid
config_get tunnelid "$cfg" tunnelid
local username
config_get username "$cfg" username
local password
config_get password "$cfg" password
[ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
[ "${#password}" == 32 -a -z "${password//[a-f0-9]/}" ] || {
password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
}
uci_set_state network "$cfg" ipaddr "$wanip"
(
local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ipv4b=AUTO&user_id=$username&pass=$password&tunnel_id=$tunnelid"
local try=0
local max=3
while [ $((++try)) -le $max ]; do
wget -qO/dev/null "$url" 2>/dev/null && {
logger -t 6in4-update "Updated tunnel #$tunnelid endpoint to $wanip"
ifup "$cfg"
break
} || {
logger -t 6in4-update "Try $try/$max failed, retrying"
sleep 1
}
done
)&
}
}
}
config_foreach update_tunnel interface
fi
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