8a9124dfc0
Changed the verify of DNS server and proxy at script start to retry the verify if there are connection problems during verify plus some minor changes. Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>
442 lines
20 KiB
Bash
Executable file
442 lines
20 KiB
Bash
Executable file
#!/bin/sh
|
|
# /usr/lib/ddns/dynamic_dns_updater.sh
|
|
#
|
|
# Original written by Eric Paul Bishop, January 2008
|
|
# Distributed under the terms of the GNU General Public License (GPL) version 2.0
|
|
# (Loosely) based on the script on the one posted by exobyte in the forums here:
|
|
# http://forum.openwrt.org/viewtopic.php?id=14040
|
|
#
|
|
# extended and partial rewritten in August 2014
|
|
# by Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
|
|
# to support:
|
|
# - IPv6 DDNS services
|
|
# - DNS Server to retrieve registered IP including TCP transport
|
|
# - Proxy Server to send out updates
|
|
# - force_interval=0 to run once
|
|
# - the usage of BIND's host command instead of BusyBox's nslookup if installed
|
|
# - extended Verbose Mode and log file support for better error detection
|
|
#
|
|
# variables in small chars are read from /etc/config/ddns
|
|
# variables in big chars are defined inside these scripts as global vars
|
|
# variables in big chars beginning with "__" are local defined inside functions only
|
|
#set -vx #script debugger
|
|
|
|
[ $# -lt 1 -o -n "${2//[0-3]/}" -o ${#2} -gt 1 ] && {
|
|
echo -e "\n USAGE:"
|
|
echo -e " $0 [SECTION] [VERBOSE_MODE]\n"
|
|
echo " [SECTION] - service section as defined in /etc/config/ddns"
|
|
echo " [VERBOSE_MODE] - '0' NO output to console"
|
|
echo " '1' output to console"
|
|
echo " '2' output to console AND logfile"
|
|
echo " + run once WITHOUT retry on error"
|
|
echo " '3' output to console AND logfile"
|
|
echo " + run once WITHOUT retry on error"
|
|
echo -e " + NOT sending update to DDNS service\n"
|
|
exit 1
|
|
}
|
|
|
|
. /usr/lib/ddns/dynamic_dns_functions.sh # global vars are also defined here
|
|
|
|
SECTION_ID="$1"
|
|
VERBOSE_MODE=${2:-1} #default mode is log to console
|
|
|
|
# set file names
|
|
PIDFILE="$RUNDIR/$SECTION_ID.pid" # Process ID file
|
|
UPDFILE="$RUNDIR/$SECTION_ID.update" # last update successful send (system uptime)
|
|
LOGFILE="$LOGDIR/$SECTION_ID.log" # log file
|
|
|
|
# VERBOSE_MODE > 1 delete logfile if exist to create an empty one
|
|
# only with this data of this run for easier diagnostic
|
|
# new one created by verbose_echo function
|
|
[ $VERBOSE_MODE -gt 1 -a -f $LOGFILE ] && rm -f $LOGFILE
|
|
|
|
################################################################################
|
|
# Leave this comment here, to clearly document variable names that are expected/possible
|
|
# Use load_all_config_options to load config options, which is a much more flexible solution.
|
|
#
|
|
# config_load "ddns"
|
|
# config_get <variable> $SECTION_ID <option]>
|
|
#
|
|
# defined options (also used as variable):
|
|
#
|
|
# enable self-explanatory
|
|
# interface network interface used by hotplug.d i.e. 'wan' or 'wan6'
|
|
#
|
|
# service_name Which DDNS service do you use or "custom"
|
|
# update_url URL to use to update your "custom" DDNS service
|
|
# update_script SCRIPT to use to update your "custom" DDNS service
|
|
#
|
|
# domain Your DNS name / replace [DOMAIN] in update_url
|
|
# username Username of your DDNS service account / replace [USERNAME] in update_url
|
|
# password Password of your DDNS service account / replace [PASSWORD] in update_url
|
|
#
|
|
# use_https use HTTPS to update DDNS service
|
|
# cacert file or directory where HTTPS can find certificates to verify server; 'IGNORE' ignore check of server certificate
|
|
#
|
|
# use_syslog log activity to syslog
|
|
#
|
|
# ip_source source to detect current local IP ('network' or 'web' or 'script' or 'interface')
|
|
# ip_network local defined network to read IP from i.e. 'wan' or 'wan6'
|
|
# ip_url URL to read local address from i.e. http://checkip.dyndns.com/ or http://checkipv6.dyndns.com/
|
|
# ip_script full path and name of your script to detect local IP
|
|
# ip_interface physical interface to use for detecting
|
|
#
|
|
# check_interval check for changes every !!! checks below 10 minutes make no sense because the Internet
|
|
# check_unit 'days' 'hours' 'minutes' !!! needs about 5-10 minutes to sync an IP-change for an DNS entry
|
|
#
|
|
# force_interval force to send an update to your service if no change was detected
|
|
# force_unit 'days' 'hours' 'minutes' !!! force_interval="0" runs this script once for use i.e. with cron
|
|
#
|
|
# retry_interval if error was detected retry in
|
|
# retry_unit 'days' 'hours' 'minutes' 'seconds'
|
|
# retry_count #NEW# number of retries before scripts stops
|
|
#
|
|
# use_ipv6 #NEW# detecting/sending IPv6 address
|
|
# force_ipversion #NEW# force usage of IPv4 or IPv6 for the whole detection and update communication
|
|
# dns_server #NEW# using a non default dns server to get Registered IP from Internet
|
|
# force_dnstcp #NEW# force communication with DNS server via TCP instead of default UDP
|
|
# proxy #NEW# using a proxy for communication !!! ALSO used to detect local IP via web => return proxy's IP !!!
|
|
# use_logfile #NEW# self-explanatory "/var/log/ddns/$SECTION_ID.log"
|
|
#
|
|
# some functionality needs
|
|
# - GNU Wget or cURL installed for sending updates to DDNS service
|
|
# - BIND host installed to detect Registered IP
|
|
#
|
|
################################################################################
|
|
|
|
# verify and load SECTION_ID is exists
|
|
[ "$(uci_get ddns $SECTION_ID)" != "service" ] && {
|
|
[ $VERBOSE_MODE -le 1 ] && VERBOSE_MODE=2 # force console out and logfile output
|
|
[ -f $LOGFILE ] && rm -f $LOGFILE # clear logfile before first entry
|
|
verbose_echo "\n ************** =: ************** ************** **************"
|
|
verbose_echo " STARTED =: PID '$$' at $(eval $DATE_PROG)"
|
|
verbose_echo " UCI CONFIG =:\n$(uci -q show ddns | grep '=service' | sort)"
|
|
critical_error "Service '$SECTION_ID' not defined"
|
|
}
|
|
load_all_config_options "ddns" "$SECTION_ID"
|
|
|
|
verbose_echo "\n ************** =: ************** ************** **************"
|
|
verbose_echo " STARTED =: PID '$$' at $(eval $DATE_PROG)"
|
|
case $VERBOSE_MODE in
|
|
0) verbose_echo " verbose mode =: '0' - run normal, NO console output";;
|
|
1) verbose_echo " verbose mode =: '1' - run normal, console mode";;
|
|
2) verbose_echo " verbose mode =: '2' - run once, NO retry on error";;
|
|
3) verbose_echo " verbose mode =: '3' - run once, NO retry on error, NOT sending update";;
|
|
*) critical_error "ERROR detecting VERBOSE_MODE '$VERBOSE_MODE'"
|
|
esac
|
|
verbose_echo " UCI CONFIG =:\n$(uci -q show ddns.$SECTION_ID | sort)"
|
|
|
|
# set defaults if not defined
|
|
[ -z "$enabled" ] && enabled=0
|
|
[ -z "$retry_count" ] && retry_count=5
|
|
[ -z "$use_syslog" ] && use_syslog=0 # not use syslog
|
|
[ -z "$use_https" ] && use_https=0 # not use https
|
|
[ -z "$use_logfile" ] && use_logfile=1 # NEW - use logfile by default
|
|
[ -z "$use_ipv6" ] && use_ipv6=0 # NEW - use IPv4 by default
|
|
[ -z "$force_ipversion" ] && force_ipversion=0 # NEW - default let system decide
|
|
[ -z "$force_dnstcp" ] && force_dnstcp=0 # NEW - default UDP
|
|
[ -z "$ip_source" ] && ip_source="network"
|
|
[ "$ip_source" = "network" -a -z "$ip_network" -a $use_ipv6 -eq 0 ] && ip_network="wan" # IPv4: default wan
|
|
[ "$ip_source" = "network" -a -z "$ip_network" -a $use_ipv6 -eq 1 ] && ip_network="wan6" # IPv6: default wan6
|
|
[ "$ip_source" = "web" -a -z "$ip_url" -a $use_ipv6 -eq 0 ] && ip_url="http://checkip.dyndns.com"
|
|
[ "$ip_source" = "web" -a -z "$ip_url" -a $use_ipv6 -eq 1 ] && ip_url="http://checkipv6.dyndns.com"
|
|
[ "$ip_source" = "interface" -a -z "$ip_interface" ] && ip_interface="eth1"
|
|
|
|
# check configuration and enabled state
|
|
[ -z "$domain" -o -z "$username" -o -z "$password" ] && critical_error "Service Configuration not correctly configured"
|
|
[ $enabled -eq 0 ] && critical_error "Service Configuration is disabled"
|
|
|
|
# verify script if configured and executable
|
|
if [ "$ip_source" = "script" ]; then
|
|
[ -z "$ip_script" ] && critical_error "No script defined to detect local IP"
|
|
[ -x "$ip_script" ] || critical_error "Script to detect local IP not found or not executable"
|
|
fi
|
|
|
|
# compute update interval in seconds
|
|
get_seconds CHECK_SECONDS ${check_interval:-10} ${check_unit:-"minutes"} # default 10 min
|
|
get_seconds FORCE_SECONDS ${force_interval:-72} ${force_unit:-"hours"} # default 3 days
|
|
get_seconds RETRY_SECONDS ${retry_interval:-60} ${retry_unit:-"seconds"} # default 60 sec
|
|
verbose_echo "check interval =: $CHECK_SECONDS seconds"
|
|
verbose_echo "force interval =: $FORCE_SECONDS seconds"
|
|
verbose_echo "retry interval =: $RETRY_SECONDS seconds"
|
|
verbose_echo " retry counter =: $retry_count times"
|
|
|
|
# determine what update url we're using if a service_name is supplied
|
|
# otherwise update_url is set inside configuration (custom service)
|
|
# or update_script is set inside configuration (custom update script)
|
|
[ -n "$service_name" ] && get_service_data update_url update_script
|
|
[ -z "$update_url" -a -z "$update_script" ] && critical_error "no update_url found/defined or no update_script found/defined"
|
|
[ -n "$update_script" -a ! -f "$update_script" ] && critical_error "custom update_script not found"
|
|
|
|
#kill old process if it exists & set new pid file
|
|
if [ -d $RUNDIR ]; then
|
|
#if process is already running, stop it
|
|
if [ -e "$PIDFILE" ]; then
|
|
OLD_PID=$(cat $PIDFILE)
|
|
ps | grep -q "^[\t ]*$OLD_PID" && {
|
|
verbose_echo " old process =: PID '$OLD_PID'"
|
|
kill $OLD_PID
|
|
} || verbose_echo "old process id =: PID 'none'"
|
|
else
|
|
verbose_echo "old process id =: PID 'none'"
|
|
fi
|
|
else
|
|
#make dir since it doesn't exist
|
|
mkdir -p $RUNDIR
|
|
verbose_echo "old process id =: PID 'none'"
|
|
fi
|
|
echo $$ > $PIDFILE
|
|
|
|
# determine when the last update was
|
|
# the following lines should prevent multiple updates if hotplug fires multiple startups
|
|
# as described in Ticket #7820, but did not function if never an update take place
|
|
# i.e. after a reboot (/var is linked to /tmp)
|
|
# using uptime as reference because date might not be updated via NTP client
|
|
get_uptime CURR_TIME
|
|
[ -e "$UPDFILE" ] && {
|
|
LAST_TIME=$(cat $UPDFILE)
|
|
# check also LAST > CURR because link of /var/run to /tmp might be removed
|
|
# i.e. boxes with larger filesystems
|
|
[ -z "$LAST_TIME" ] && LAST_TIME=0
|
|
[ $LAST_TIME -gt $CURR_TIME ] && LAST_TIME=0
|
|
}
|
|
if [ $LAST_TIME -eq 0 ]; then
|
|
verbose_echo " last update =: never"
|
|
else
|
|
EPOCH_TIME=$(( $(date +%s) - CURR_TIME + LAST_TIME ))
|
|
EPOCH_TIME="date -d @$EPOCH_TIME +'$DATE_FORMAT'"
|
|
verbose_echo " last update =: $(eval $EPOCH_TIME)"
|
|
fi
|
|
|
|
# we need time here because hotplug.d is fired by netifd
|
|
# but IP addresses are not set by DHCP/DHCPv6 etc.
|
|
verbose_echo " waiting =: 10 seconds for interfaces to fully come up"
|
|
sleep 10
|
|
|
|
# verify DNS server:
|
|
# do with retry's because there might be configurations
|
|
# not directly could connect to outside dns when interface is already up
|
|
ERR_VERIFY=0 # reset err counter
|
|
while [ -n "$dns_server" ]; do
|
|
[ $ERR_VERIFY -eq 0 ] && verbose_echo "******* VERIFY =: DNS server '$dns_server'"
|
|
verify_dns "$dns_server"
|
|
ERR_LAST=$? # save return value
|
|
[ $ERR_LAST -eq 0 ] && break # everything ok leave while loop
|
|
ERR_VERIFY=$(( $ERR_VERIFY + 1 ))
|
|
# if error count > retry_count leave here with critical error
|
|
[ $ERR_VERIFY -gt $retry_count ] && {
|
|
case $ERR_LAST in
|
|
2) critical_error "Invalid DNS server Error: '2' - nslookup can not resolve host";;
|
|
3) critical_error "Invalid DNS server Error: '3' - nc (netcat) can not connect";;
|
|
*) critical_error "Invalid DNS server Error: '$ERR_LAST' - unspecific error";;
|
|
esac
|
|
}
|
|
case $ERR_LAST in
|
|
2) syslog_err "Invalid DNS server Error: '2' - nslookup can not resolve host - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds\n";;
|
|
3) syslog_err "Invalid DNS server Error: '3' - nc (netcat) can not connect - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds\n";;
|
|
*) syslog_err "Invalid DNS server Error: '$ERR_LAST' - unspecific error - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds\n";;
|
|
esac
|
|
[ $VERBOSE_MODE -gt 1 ] && {
|
|
# VERBOSE_MODE > 1 then NO retry
|
|
verbose_echo "\n!!!!!!!!! ERROR =: Verbose Mode - NO retry\n"
|
|
break
|
|
}
|
|
verbose_echo "******** RETRY =: DNS server '$dns_server' - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds"
|
|
sleep $RETRY_SECONDS
|
|
done
|
|
|
|
# verify Proxy server and set environment
|
|
# do with retry's because there might be configurations
|
|
# not directly could connect to outside dns when interface is already up
|
|
ERR_VERIFY=0 # reset err counter
|
|
[ -n "$proxy" ] && {
|
|
[ $ERR_VERIFY -eq 0 ] && verbose_echo "******* VERIFY =: Proxy server 'http://$proxy'"
|
|
verify_proxy "$proxy"
|
|
ERR_LAST=$? # save return value
|
|
[ $ERR_LAST -eq 0 ] && {
|
|
# everything ok set proxy and leave while loop
|
|
export HTTP_PROXY="http://$proxy"
|
|
export HTTPS_PROXY="http://$proxy"
|
|
export http_proxy="http://$proxy"
|
|
export https_proxy="http://$proxy"
|
|
break
|
|
}
|
|
ERR_VERIFY=$(( $ERR_VERIFY + 1 ))
|
|
# if error count > retry_count leave here with critical error
|
|
[ $ERR_VERIFY -gt $retry_count ] && {
|
|
case $ERR_LAST in
|
|
2) critical_error "Invalid Proxy server Error '2' - nslookup can not resolve host";;
|
|
3) critical_error "Invalid Proxy server Error '3' - nc (netcat) can not connect";;
|
|
*) critical_error "Invalid Proxy server Error '$ERR_LAST' - unspecific error";;
|
|
esac
|
|
}
|
|
case $ERR_LAST in
|
|
2) syslog_err "Invalid Proxy server Error '2' - nslookup can not resolve host - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds\n";;
|
|
3) syslog_err "Invalid Proxy server Error '3' - nc (netcat) can not connect - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds\n";;
|
|
*) syslog_err "Invalid Proxy server Error '$ERR_LAST' - unspecific error - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds\n";;
|
|
esac
|
|
[ $VERBOSE_MODE -gt 1 ] && {
|
|
# VERBOSE_MODE > 1 then NO retry
|
|
verbose_echo "\n!!!!!!!!! ERROR =: Verbose Mode - NO retry\n"
|
|
break
|
|
}
|
|
verbose_echo "******** RETRY =: Proxy server 'http://$proxy' - retry $ERR_VERIFY/$retry_count in $RETRY_SECONDS seconds"
|
|
sleep $RETRY_SECONDS
|
|
}
|
|
|
|
# let's check if there is already an IP registered at the web
|
|
# but ignore errors if not
|
|
verbose_echo "******* DETECT =: Registered IP"
|
|
get_registered_ip REGISTERED_IP
|
|
|
|
# loop endlessly, checking ip every check_interval and forcing an updating once every force_interval
|
|
# NEW: ### Luci Ticket 538
|
|
# a "force_interval" of "0" will run this script only once
|
|
# the update is only done once when an interface goes up
|
|
# or you run /etc/init.d/ddns start or you can use a cron job
|
|
# it will force an update without check when lastupdate happen
|
|
# but it will verify after "check_interval" if update is seen in the web
|
|
# and retries on error retry_count times
|
|
# CHANGES: ### Ticket 16363
|
|
# modified nslookup / sed / grep to detect registered ip
|
|
# NEW: ### Ticket 7820
|
|
# modified nslookup to support non standard dns_server (needs to be defined in /etc/config/ddns)
|
|
# support for BIND host command.
|
|
# Wait for interface to fully come up, before the first update is done
|
|
verbose_echo "*** START LOOP =: $(eval $DATE_PROG)"
|
|
# we run NOT once
|
|
[ $FORCE_SECONDS -gt 0 -o $VERBOSE_MODE -le 1 ] && syslog_info "Starting main loop"
|
|
|
|
while : ; do
|
|
|
|
# read local IP
|
|
verbose_echo "******* DETECT =: Local IP"
|
|
get_local_ip LOCAL_IP
|
|
ERR_LAST=$? # save return value
|
|
# Error in function
|
|
[ $ERR_LAST -gt 0 ] && {
|
|
if [ $VERBOSE_MODE -le 1 ]; then # VERBOSE_MODE <= 1 then retry
|
|
# we can't read local IP
|
|
ERR_LOCAL_IP=$(( $ERR_LOCAL_IP + 1 ))
|
|
[ $ERR_LOCAL_IP -gt $retry_count ] && critical_error "Can not detect local IP"
|
|
verbose_echo "\n!!!!!!!!! ERROR =: detecting local IP - retry $ERR_LOCAL_IP/$retry_count in $RETRY_SECONDS seconds\n"
|
|
syslog_err "Error detecting local IP - retry $ERR_LOCAL_IP/$retry_count in $RETRY_SECONDS seconds"
|
|
sleep $RETRY_SECONDS
|
|
continue # jump back to the beginning of while loop
|
|
else
|
|
verbose_echo "\n!!!!!!!!! ERROR =: detecting local IP - NO retry\n"
|
|
fi
|
|
}
|
|
ERR_LOCAL_IP=0 # reset err counter
|
|
|
|
# prepare update
|
|
# never updated or forced immediate then NEXT_TIME = 0
|
|
[ $FORCE_SECONDS -eq 0 -o $LAST_TIME -eq 0 ] \
|
|
&& NEXT_TIME=0 \
|
|
|| NEXT_TIME=$(( $LAST_TIME + $FORCE_SECONDS ))
|
|
# get current uptime
|
|
get_uptime CURR_TIME
|
|
|
|
# send update when current time > next time or local ip different from registered ip (as loop on error)
|
|
ERR_SEND=0
|
|
while [ $CURR_TIME -ge $NEXT_TIME -o "$LOCAL_IP" != "$REGISTERED_IP" ]; do
|
|
if [ $VERBOSE_MODE -gt 2 ]; then
|
|
verbose_echo " VERBOSE MODE =: NO UPDATE send to DDNS provider"
|
|
elif [ "$LOCAL_IP" != "$REGISTERED_IP" ]; then
|
|
verbose_echo "******* UPDATE =: LOCAL: '$LOCAL_IP' <> REGISTERED: '$REGISTERED_IP'"
|
|
else
|
|
verbose_echo "******* FORCED =: LOCAL: '$LOCAL_IP' == REGISTERED: '$REGISTERED_IP'"
|
|
fi
|
|
# only send if VERBOSE_MODE < 3
|
|
ERR_LAST=0
|
|
[ $VERBOSE_MODE -lt 3 ] && {
|
|
send_update "$LOCAL_IP"
|
|
ERR_LAST=$? # save return value
|
|
}
|
|
|
|
# Error in function
|
|
if [ $ERR_LAST -gt 0 ]; then
|
|
if [ $VERBOSE_MODE -le 1 ]; then # VERBOSE_MODE <=1 then retry
|
|
# error sending local IP
|
|
ERR_SEND=$(( $ERR_SEND + 1 ))
|
|
[ $ERR_SEND -gt $retry_count ] && critical_error "can not send update to DDNS Provider"
|
|
verbose_echo "\n!!!!!!!!! ERROR =: sending update - retry $ERR_SEND/$retry_count in $RETRY_SECONDS seconds\n"
|
|
syslog_err "Error sending update - retry $ERR_SEND/$retry_count in $RETRY_SECONDS seconds"
|
|
sleep $RETRY_SECONDS
|
|
continue # re-loop
|
|
else
|
|
verbose_echo "\n!!!!!!!!! ERROR =: sending update to DDNS service - NO retry\n"
|
|
break
|
|
fi
|
|
else
|
|
# we send data so save "last time"
|
|
get_uptime LAST_TIME
|
|
echo $LAST_TIME > $UPDFILE # save LASTTIME to file
|
|
[ "$LOCAL_IP" != "$REGISTERED_IP" ] \
|
|
&& syslog_notice "Changed IP: '$LOCAL_IP' successfully send" \
|
|
|| syslog_notice "Forced Update: IP: '$LOCAL_IP' successfully send"
|
|
break # leave while
|
|
fi
|
|
done
|
|
|
|
# now we wait for check interval before testing if update was recognized
|
|
# only sleep if VERBOSE_MODE <= 2 because nothing send so do not wait
|
|
[ $VERBOSE_MODE -le 2 ] && {
|
|
verbose_echo "****** WAITING =: $CHECK_SECONDS seconds (Check Interval) before continue"
|
|
sleep $CHECK_SECONDS
|
|
} || verbose_echo " VERBOSE MODE =: NO WAITING for Check Interval\n"
|
|
|
|
# read at DDNS service registered IP (in loop on error)
|
|
REGISTERED_IP=""
|
|
ERR_REG_IP=0
|
|
while : ; do
|
|
verbose_echo "******* DETECT =: Registered IP"
|
|
get_registered_ip REGISTERED_IP
|
|
ERR_LAST=$? # save return value
|
|
|
|
# No Error in function we leave while loop
|
|
[ $ERR_LAST -eq 0 ] && break
|
|
|
|
# we can't read Registered IP
|
|
if [ $VERBOSE_MODE -le 1 ]; then # VERBOSE_MODE <=1 then retry
|
|
ERR_REG_IP=$(( $ERR_REG_IP + 1 ))
|
|
[ $ERR_REG_IP -gt $retry_count ] && critical_error "can not detect registered local IP"
|
|
verbose_echo "\n!!!!!!!!! ERROR =: detecting Registered IP - retry $ERR_REG_IP/$retry_count in $RETRY_SECONDS seconds\n"
|
|
syslog_err "Error detecting Registered IP - retry $ERR_REG_IP/$retry_count in $RETRY_SECONDS seconds"
|
|
sleep $RETRY_SECONDS
|
|
else
|
|
verbose_echo "\n!!!!!!!!! ERROR =: detecting Registered IP - NO retry\n"
|
|
break # leave while loop
|
|
fi
|
|
done
|
|
|
|
# IP's are still different
|
|
if [ "$LOCAL_IP" != "$REGISTERED_IP" ]; then
|
|
if [ $VERBOSE_MODE -le 1 ]; then # VERBOSE_MODE <=1 then retry
|
|
ERR_UPDATE=$(( $ERR_UPDATE + 1 ))
|
|
[ $ERR_UPDATE -gt $retry_count ] && critical_error "Registered IP <> Local IP - LocalIP: '$LOCAL_IP' - RegisteredIP: '$REGISTERED_IP'"
|
|
verbose_echo "\n!!!!!!!!! ERROR =: Registered IP <> Local IP - starting retry $ERR_UPDATE/$retry_count\n"
|
|
syslog_warn "Warning: Registered IP <> Local IP - starting retry $ERR_UPDATE/$retry_count"
|
|
continue # loop to beginning
|
|
else
|
|
verbose_echo "\n!!!!!!!!! ERROR =: Registered IP <> Local IP - LocalIP: '$LOCAL_IP' - RegisteredIP: '$REGISTERED_IP' - NO retry\n"
|
|
fi
|
|
fi
|
|
|
|
# we checked successful the last update
|
|
ERR_UPDATE=0 # reset error counter
|
|
|
|
# force_update=0 or VERBOSE_MODE > 1 - leave the main loop
|
|
[ $FORCE_SECONDS -eq 0 -o $VERBOSE_MODE -gt 1 ] && {
|
|
verbose_echo "****** LEAVING =: $(eval $DATE_PROG)"
|
|
syslog_info "Leaving"
|
|
break
|
|
}
|
|
verbose_echo "********* LOOP =: $(eval $DATE_PROG)"
|
|
syslog_info "Rerun IP check"
|
|
done
|
|
|
|
verbose_echo "****** STOPPED =: PID '$$' at $(eval $DATE_PROG)\n"
|
|
syslog_info "Done"
|
|
|
|
exit 0
|