You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

144 lines
3.0 KiB

# /usr/lib/dynamic_dns/dynamic_dns_functions.sh
#
# Written by Eric Paul Bishop, Janary 2008
# Distributed under the terms of the GNU General Public License (GPL) version 2.0
#
# This script is (loosely) based on the one posted by exobyte in the forums here:
# http://forum.openwrt.org/viewtopic.php?id=14040
. /lib/functions.sh
. /lib/functions/network.sh
#loads all options for a given package and section
#also, sets all_option_variables to a list of the variable names
load_all_config_options()
{
pkg_name="$1"
section_id="$2"
ALL_OPTION_VARIABLES=""
# this callback loads all the variables
# in the section_id section when we do
# config_load. We need to redefine
# the option_cb for different sections
# so that the active one isn't still active
# after we're done with it. For reference
# the $1 variable is the name of the option
# and $2 is the name of the section
config_cb()
{
if [ ."$2" = ."$section_id" ]; then
option_cb()
{
ALL_OPTION_VARIABLES="$ALL_OPTION_VARIABLES $1"
}
else
option_cb() { return 0; }
fi
}
config_load "$pkg_name"
for var in $ALL_OPTION_VARIABLES
do
config_get "$var" "$section_id" "$var"
done
}
get_current_ip()
{
#if ip source is not defined, assume we want to get ip from wan
if [ "$ip_source" != "interface" ] && [ "$ip_source" != "web" ] && [ "$ip_source" != "script" ]
then
ip_source="network"
fi
if [ "$ip_source" = "network" ]
then
if [ -z "$ip_network" ]
then
ip_network="wan"
fi
fi
current_ip='';
if [ "$ip_source" = "network" ]
then
network_get_ipaddr current_ip "$ip_network" || return
elif [ "$ip_source" = "interface" ]
then
current_ip=$(ifconfig $ip_interface | grep -o 'inet addr:[0-9.]*' | grep -o "$ip_regex")
elif [ "$ip_source" = "script" ]
then
# get ip from script
current_ip=$($ip_script)
else
# get ip from web
# we check each url in order in ip_url variable, and if no ips are found we use dyndns ip checker
# ip is set to FIRST expression in page that matches the ip_regex regular expression
for addr in $ip_url
do
if [ -z "$current_ip" ]
then
current_ip=$(echo $( wget -O - $addr 2>/dev/null) | grep -o "$ip_regex")
fi
done
#here we hard-code the dyndns checkip url in case no url was specified
if [ -z "$current_ip" ]
then
current_ip=$(echo $( wget -O - http://checkip.dyndns.org 2>/dev/null) | grep -o "$ip_regex")
fi
fi
echo "$current_ip"
}
verbose_echo()
{
if [ "$verbose_mode" = 1 ]
then
echo $1
fi
}
syslog_echo()
{
if [ "$use_syslog" = 1 ]
then
echo $1|logger -t ddns-scripts-$service_id
fi
}
start_daemon_for_all_ddns_sections()
{
local event_interface="$1"
SECTIONS=""
config_cb()
{
SECTIONS="$SECTIONS $2"
}
config_load "ddns"
for section in $SECTIONS
do
local iface
config_get iface "$section" interface "wan"
[ -z "$event_interface" -o "$iface" = "$event_interface" ] || continue
/usr/lib/ddns/dynamic_dns_updater.sh $section 0 > /dev/null 2>&1 &
done
}
monotonic_time()
{
local uptime
read uptime < /proc/uptime
echo "${uptime%%.*}"
}