@ -21,16 +21,17 @@
. /lib/functions/network.sh . /lib/functions/network.sh
# GLOBAL VARIABLES # # GLOBAL VARIABLES #
VERSION = "2.7.5 "
VERSION = "2.7.6 "
SECTION_ID = "" # hold config's section name SECTION_ID = "" # hold config's section name
VERBOSE_MODE = 1 # default mode is log to console, but easily changed with parameter
VERBOSE = 1 # default mode is log to console, but easily changed with parameter
MYPROG = $( basename $0 ) # my program call name
LOGFILE = "" # logfile - all files are set in dynamic_dns_updater.sh LOGFILE = "" # logfile - all files are set in dynamic_dns_updater.sh
PIDFILE = "" # pid file PIDFILE = "" # pid file
UPDFILE = "" # store UPTIME of last update UPDFILE = "" # store UPTIME of last update
DATFILE = "" # save stdout data of WGet and other external programs called DATFILE = "" # save stdout data of WGet and other external programs called
ERRFILE = "" # save stderr output of WGet and other external programs called ERRFILE = "" # save stderr output of WGet and other external programs called
TLDFILE = /usr/lib/ddns/tld_names .dat.gz # TLD file used by split_FQDN
TLDFILE = /usr/share/public_suffix_list .dat.gz # TLD file used by split_FQDN
CHECK_SECONDS = 0 # calculated seconds out of given CHECK_SECONDS = 0 # calculated seconds out of given
FORCE_SECONDS = 0 # interval and unit FORCE_SECONDS = 0 # interval and unit
@ -48,7 +49,7 @@ URL_USER="" # url encoded $username from config file
URL_PASS = "" # url encoded $password from config file URL_PASS = "" # url encoded $password from config file
URL_PENC = "" # url encoded $param_enc from config file URL_PENC = "" # url encoded $param_enc from config file
SRV _ANSWER= "" # Answer given by service on success
UPD _ANSWER= "" # Answer given by service on success
ERR_LAST = 0 # used to save $? return code of program and function calls ERR_LAST = 0 # used to save $? return code of program and function calls
ERR_UPDATE = 0 # error counter on different local and registered ip ERR_UPDATE = 0 # error counter on different local and registered ip
@ -61,8 +62,8 @@ IPV4_REGEX="[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}"
# IPv6 ( ( 0-9a-f 1-4char ":") min 1x) ( ( 0-9a-f 1-4char )optional) ( (":" 0-9a-f 1-4char ) min 1x) # IPv6 ( ( 0-9a-f 1-4char ":") min 1x) ( ( 0-9a-f 1-4char )optional) ( (":" 0-9a-f 1-4char ) min 1x)
IPV6_REGEX = "\(\([0-9A-Fa-f]\{1,4\}:\)\{1,\}\)\(\([0-9A-Fa-f]\{1,4\}\)\{0,1\}\)\(\(:[0-9A-Fa-f]\{1,4\}\)\{1,\}\)" IPV6_REGEX = "\(\([0-9A-Fa-f]\{1,4\}:\)\{1,\}\)\(\([0-9A-Fa-f]\{1,4\}\)\{0,1\}\)\(\(:[0-9A-Fa-f]\{1,4\}\)\{1,\}\)"
# detect if called by dynamic_dns_ lucihelper.sh script, disable retrys (empty variable == false)
[ " $( basename $0 ) " = "dynamic_dns_ lucihelper.sh"] && LUCI_HELPER = "TRUE" || LUCI_HELPER = ""
# detect if called by ddns- lucihelper.sh script, disable retrys (empty variable == false)
[ " $MYPROG " = "ddns- lucihelper.sh"] && LUCI_HELPER = "TRUE" || LUCI_HELPER = ""
# Name Server Lookup Programs # Name Server Lookup Programs
BIND_HOST = $( which host) BIND_HOST = $( which host)
@ -88,23 +89,23 @@ UCLIENT_FETCH_SSL=$(find /lib /usr/lib -name libustream-ssl.so* 2>/dev/null)
# Global configuration settings # Global configuration settings
# allow NON-public IP's # allow NON-public IP's
ALLOW_LOCAL_IP = $( uci -q get ddns.global.allow_local_ip) || ALLOW_LOCAL_IP = 0
upd_privateip = $( uci -q get ddns.global.allow_local_ip) || upd_privateip = 0
# directory to store run information to. # directory to store run information to.
RUNDIR = $( uci -q get ddns.global.run_dir) || RUNDIR = "/var/run/ddns"
[ -d $RUNDIR ] || mkdir -p -m755 $RUNDIR
ddns_rundir = $( uci -q get ddns.global.run_dir) || ddns_rundir = "/var/run/ddns"
[ -d $ddns_rundir ] || mkdir -p -m755 $ddns_rundir
# directory to store log files # directory to store log files
LOGDIR = $( uci -q get ddns.global.log_dir) || LOGDIR = "/var/log/ddns"
[ -d $LOGDIR ] || mkdir -p -m755 $LOGDIR
ddns_logdir = $( uci -q get ddns.global.log_dir) || ddns_logdir = "/var/log/ddns"
[ -d $ddns_logdir ] || mkdir -p -m755 $ddns_logdir
# number of lines to before rotate logfile # number of lines to before rotate logfile
LOGLINES = $( uci -q get ddns.global.log_lines) || LOGLINES = 250
LOGLINES = $(( LOGLINES+ 1 )) # correct sed handling
ddns_loglines = $( uci -q get ddns.global.log_lines) || ddns_loglines = 250
ddns_loglines = $(( ddns_loglines+ 1 )) # correct sed handling
# format to show date information in log and luci-app-ddns default ISO 8601 format # format to show date information in log and luci-app-ddns default ISO 8601 format
DATE_FORMAT = $( uci -q get ddns.global.date_format) || DATE_FORMAT = "%F %R"
DATE_PROG = " date +' $DATE_FORMAT ' "
ddns_dateformat = $( uci -q get ddns.global.date_format) || ddns_dateformat = "%F %R"
DATE_PROG = " date +' $ddns_dateformat ' "
# USE_CURL if GNU Wget and cURL installed normally Wget is used by do_transfer() # USE_CURL if GNU Wget and cURL installed normally Wget is used by do_transfer()
# to change this use global option use_curl '1' # to change this use global option use_curl '1'
@ -180,7 +181,7 @@ start_daemon_for_all_ddns_sections()
for __SECTIONID in $__SECTIONS ; do for __SECTIONID in $__SECTIONS ; do
config_get __IFACE " $__SECTIONID " interface "wan" config_get __IFACE " $__SECTIONID " interface "wan"
[ -z " $__EVENTIF " -o " $__IFACE " = " $__EVENTIF " ] || continue [ -z " $__EVENTIF " -o " $__IFACE " = " $__EVENTIF " ] || continue
/usr/lib/ddns/dynamic_dns_updater.sh $__SECTIONID 0 >/dev/null 2>& 1 &
/usr/lib/ddns/dynamic_dns_updater.sh -v "0" -S " $__SECTIONID " -- start
done done
} }
@ -188,7 +189,7 @@ start_daemon_for_all_ddns_sections()
# $1 = section # $1 = section
stop_section_processes( ) { stop_section_processes( ) {
local __PID = 0 local __PID = 0
local __PIDFILE = " $RUNDIR / $1 .pid "
local __PIDFILE = " $ddns_rundir / $1 .pid "
[ $# -ne 1 ] && write_log 12 "Error calling 'stop_section_processes()' - wrong number of parameters" [ $# -ne 1 ] && write_log 12 "Error calling 'stop_section_processes()' - wrong number of parameters"
[ -e " $__PIDFILE " ] && { [ -e " $__PIDFILE " ] && {
@ -253,14 +254,14 @@ write_log() {
esac esac
# verbose echo # verbose echo
[ $VERBOSE_MODE -gt 0 -o $__EXIT -gt 0 ] && echo -e " $__MSG "
[ $VERBOSE -gt 0 -o $__EXIT -gt 0 ] && echo -e " $__MSG "
# write to logfile # write to logfile
if [ ${ use_logfile :- 1 } -eq 1 -o $VERBOSE_MODE -gt 1 ] ; then
if [ ${ use_logfile :- 1 } -eq 1 -o $VERBOSE -gt 1 ] ; then
echo -e " $__MSG " >> $LOGFILE echo -e " $__MSG " >> $LOGFILE
# VERBOSE_MODE > 1 then NO loop so NO truncate log to $LOGLINES lines
[ $VERBOSE_MODE -gt 1 ] || sed -i -e :a -e '$q;N;' $LOGLINES ',$D;ba' $LOGFILE
# VERBOSE > 1 then NO loop so NO truncate log to $ddns_loglines lines
[ $VERBOSE -gt 1 ] || sed -i -e :a -e '$q;N;' $ddns_loglines ',$D;ba' $LOGFILE
fi fi
[ $LUCI_HELPER ] && return # nothing else todo when running LuCI helper script
[ -n " $LUCI_HELPER " ] && return # nothing else todo when running LuCI helper script
[ $__LEVEL -eq 7 ] && return # no syslog for debug messages [ $__LEVEL -eq 7 ] && return # no syslog for debug messages
__CMD = $( echo -e " $__CMD " | tr -d '\n' | tr '\t' ' ' ) # remove \n \t chars __CMD = $( echo -e " $__CMD " | tr -d '\n' | tr '\t' ' ' ) # remove \n \t chars
[ $__EXIT -eq 1 ] && { [ $__EXIT -eq 1 ] && {
@ -269,6 +270,7 @@ write_log() {
} }
[ $use_syslog -eq 0 ] && return [ $use_syslog -eq 0 ] && return
[ $(( use_syslog + __LEVEL)) -le 7 ] && $__CMD [ $(( use_syslog + __LEVEL)) -le 7 ] && $__CMD
return return
} }
@ -314,22 +316,22 @@ urlencode() {
} }
# extract url or script for given DDNS Provider from # extract url or script for given DDNS Provider from
# file /usr/lib /ddns/services for IPv4 or from
# file /usr/lib /ddns/services_ipv6 for IPv6
# file /etc /ddns/services for IPv4 or from
# file /etc /ddns/services_ipv6 for IPv6
# $1 Name of Variable to store url to # $1 Name of Variable to store url to
# $2 Name of Variable to store script to # $2 Name of Variable to store script to
# $3 Name of Variable to store service answer to # $3 Name of Variable to store service answer to
get_service_data( ) { get_service_data( ) {
[ $# -ne 3 ] && write_log 12 "Error calling 'get_service_data()' - wrong number of parameters" [ $# -ne 3 ] && write_log 12 "Error calling 'get_service_data()' - wrong number of parameters"
__FILE = "/usr/lib/ddns/services" # IPv4
[ $use_ipv6 -ne 0 ] && __FILE = "/usr/lib /ddns/services_ipv6" # IPv6
__FILE = "/etc/ddns/services" # IPv4
[ $use_ipv6 -ne 0 ] && __FILE = "/etc /ddns/services_ipv6" # IPv6
# workaround with variables; pipe create subshell with no give back of variable content # workaround with variables; pipe create subshell with no give back of variable content
mkfifo pipe_$$ mkfifo pipe_$$
# only grep without # or whitespace at linestart | remove " # only grep without # or whitespace at linestart | remove "
# grep -v -E "(^#|^[[:space:]]*$)" $__FILE | sed -e s/\"//g > pipe_$$ & # grep -v -E "(^#|^[[:space:]]*$)" $__FILE | sed -e s/\"//g > pipe_$$ &
sed '/^#/d/^[ \t]*$/ds/\"//g' $__FILE > pipe_$$ &
sed '/^#/d; /^[ \t]*$/d; s/\"//g' $__FILE > pipe_$$ &
while read __SERVICE __DATA __ANSWER; do while read __SERVICE __DATA __ANSWER; do
if [ " $__SERVICE " = " $service_name " ] ; then if [ " $__SERVICE " = " $service_name " ] ; then
@ -533,7 +535,7 @@ verify_host_port() {
[ $use_ipv6 -eq 0 -a -z " $__IPV4 " ] && __ERR = 4 [ $use_ipv6 -eq 0 -a -z " $__IPV4 " ] && __ERR = 4
[ $use_ipv6 -eq 1 -a -z " $__IPV6 " ] && __ERR = 6 [ $use_ipv6 -eq 1 -a -z " $__IPV6 " ] && __ERR = 6
[ $__ERR -gt 0 ] && { [ $__ERR -gt 0 ] && {
[ $LUCI_HELPER ] && return 4
[ -n " $LUCI_HELPER " ] && return 4
write_log 14 " Verify host Error '4' - Forced IP Version IPv $__ERR don't match " write_log 14 " Verify host Error '4' - Forced IP Version IPv $__ERR don't match "
} }
fi fi
@ -586,10 +588,10 @@ verify_dns() {
# DNS uses port 53 # DNS uses port 53
verify_host_port " $1 " "53" verify_host_port " $1 " "53"
__ERR = $? __ERR = $?
if [ $LUCI_HELPER ] ; then # no retry if called by LuCI helper script
if [ -n " $LUCI_HELPER " ] ; then # no retry if called by LuCI helper script
return $__ERR return $__ERR
elif [ $__ERR -ne 0 -a $VERBOSE_MODE -gt 1 ] ; then # VERBOSE_MOD E > 1 then NO retry
write_log 4 " Verify DNS server ' $1 ' failed - Verbose Mode: $VERBOSE_MODE - NO retry on error "
elif [ $__ERR -ne 0 -a $VERBOSE -gt 1 ] ; then # VERBOSE > 1 then NO retry
write_log 4 " Verify DNS server ' $1 ' failed - Verbose Mode: $VERBOSE - NO retry on error "
return $__ERR return $__ERR
elif [ $__ERR -ne 0 ] ; then elif [ $__ERR -ne 0 ] ; then
__CNT = $(( $__CNT + 1 )) # increment error counter __CNT = $(( $__CNT + 1 )) # increment error counter
@ -639,17 +641,17 @@ verify_proxy() {
fi fi
# No Port detected - EXITING # No Port detected - EXITING
[ -z " $__PORT " ] && { [ -z " $__PORT " ] && {
[ $LUCI_HELPER ] && return 5
[ -n " $LUCI_HELPER " ] && return 5
write_log 14 "Invalid Proxy server Error '5' - proxy port missing" write_log 14 "Invalid Proxy server Error '5' - proxy port missing"
} }
while [ $__ERR -gt 0 ] ; do while [ $__ERR -gt 0 ] ; do
verify_host_port " $__HOST " " $__PORT " verify_host_port " $__HOST " " $__PORT "
__ERR = $? __ERR = $?
if [ $LUCI_HELPER ] ; then # no retry if called by LuCI helper script
if [ -n " $LUCI_HELPER " ] ; then # no retry if called by LuCI helper script
return $__ERR return $__ERR
elif [ $__ERR -gt 0 -a $VERBOSE_MODE -gt 1 ] ; then # VERBOSE_MOD E > 1 then NO retry
write_log 4 " Verify Proxy server ' $1 ' failed - Verbose Mode: $VERBOSE_MODE - NO retry on error "
elif [ $__ERR -gt 0 -a $VERBOSE -gt 1 ] ; then # VERBOSE > 1 then NO retry
write_log 4 " Verify Proxy server ' $1 ' failed - Verbose Mode: $VERBOSE - NO retry on error "
return $__ERR return $__ERR
elif [ $__ERR -gt 0 ] ; then elif [ $__ERR -gt 0 ] ; then
__CNT = $(( $__CNT + 1 )) # increment error counter __CNT = $(( $__CNT + 1 )) # increment error counter
@ -809,14 +811,14 @@ do_transfer() {
eval $__RUNPROG # DO transfer eval $__RUNPROG # DO transfer
__ERR = $? # save error code __ERR = $? # save error code
[ $__ERR -eq 0 ] && return 0 # no error leave [ $__ERR -eq 0 ] && return 0 # no error leave
[ $LUCI_HELPER ] && return 1 # no retry if called by LuCI helper script
[ -n " $LUCI_HELPER " ] && return 1 # no retry if called by LuCI helper script
write_log 3 " $__PROG Error: ' $__ERR ' " write_log 3 " $__PROG Error: ' $__ERR ' "
write_log 7 " $( cat $ERRFILE ) " # report error write_log 7 " $( cat $ERRFILE ) " # report error
[ $VERBOSE_MODE -gt 1 ] && {
# VERBOSE_MODE > 1 then NO retry
write_log 4 " Transfer failed - Verbose Mode: $VERBOSE_MODE - NO retry on error "
[ $VERBOSE -gt 1 ] && {
# VERBOSE > 1 then NO retry
write_log 4 " Transfer failed - Verbose Mode: $VERBOSE - NO retry on error "
return 1 return 1
} }
@ -841,7 +843,7 @@ send_update() {
[ $# -ne 1 ] && write_log 12 "Error calling 'send_update()' - wrong number of parameters" [ $# -ne 1 ] && write_log 12 "Error calling 'send_update()' - wrong number of parameters"
if [ $ALLOW_LOCAL_IP -eq 0 ] ; then
if [ $upd_privateip -eq 0 ] ; then
# verify given IP / no private IPv4's / no IPv6 addr starting with fxxx of with ":" # verify given IP / no private IPv4's / no IPv6 addr starting with fxxx of with ":"
[ $use_ipv6 -eq 0 ] && __IP = $( echo $1 | grep -v -E "(^0|^10\.|^100\.6[4-9]\.|^100\.[7-9][0-9]\.|^100\.1[0-1][0-9]\.|^100\.12[0-7]\.|^127|^169\.254|^172\.1[6-9]\.|^172\.2[0-9]\.|^172\.3[0-1]\.|^192\.168)" ) [ $use_ipv6 -eq 0 ] && __IP = $( echo $1 | grep -v -E "(^0|^10\.|^100\.6[4-9]\.|^100\.[7-9][0-9]\.|^100\.1[0-1][0-9]\.|^100\.12[0-7]\.|^127|^169\.254|^172\.1[6-9]\.|^172\.2[0-9]\.|^172\.3[0-1]\.|^192\.168)" )
[ $use_ipv6 -eq 1 ] && __IP = $( echo $1 | grep "^[0-9a-eA-E]" ) [ $use_ipv6 -eq 1 ] && __IP = $( echo $1 | grep "^[0-9a-eA-E]" )
@ -870,9 +872,9 @@ send_update() {
write_log 7 " DDNS Provider answered:\n $( cat $DATFILE ) " write_log 7 " DDNS Provider answered:\n $( cat $DATFILE ) "
[ -z " $SRV _ANSWER " ] && return 0 # not set then ignore
[ -z " $UPD _ANSWER " ] && return 0 # not set then ignore
grep -i -E " $SRV _ANSWER " $DATFILE >/dev/null 2>& 1
grep -i -E " $UPD _ANSWER " $DATFILE >/dev/null 2>& 1
return $? # "0" if found return $? # "0" if found
fi fi
} }
@ -886,91 +888,123 @@ get_local_ip () {
write_log 7 " Detect local IP on ' $ip_source ' " write_log 7 " Detect local IP on ' $ip_source ' "
while : ; do while : ; do
case $ip_source in
network)
# set correct program
[ $use_ipv6 -eq 0 ] && __RUNPROG = "network_get_ipaddr" \
|| __RUNPROG = "network_get_ipaddr6"
eval " $__RUNPROG __DATA $ip_network " || \
write_log 13 " Can not detect local IP using $__RUNPROG ' $ip_network ' - Error: ' $? ' "
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected on network ' $ip_network ' "
; ;
interface)
write_log 7 " #> ifconfig $ip_interface > $DATFILE 2> $ERRFILE "
ifconfig $ip_interface >$DATFILE 2>$ERRFILE
if [ -n " $ip_network " ] ; then
# set correct program
[ $use_ipv6 -eq 0 ] && __RUNPROG = "network_get_ipaddr" \
|| __RUNPROG = "network_get_ipaddr6 "
eval " $__RUNPROG __DATA $ip_network " || \
write_log 13 " Can not detect local IP using $__RUNPROG ' $ip_network ' - Error: ' $? ' "
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected on network ' $ip_network ' "
elif [ -n " $ip_interface " ] ; then
local __DATA4 = "" ; local __DATA6 = ""
if [ -n " $( which ip) " ] ; then # ip program installed
write_log 7 " #> ip -o addr show dev $ip_interface scope global >$DATFILE 2> $ERRFILE "
ip -o addr show dev $ip_interface scope global >$DATFILE 2>$ERRFILE
__ERR = $? __ERR = $?
if [ $__ERR -eq 0 ] ; then if [ $__ERR -eq 0 ] ; then
if [ $use_ipv6 -eq 0 ] ; then
__DATA = $( awk '
/inet addr:/ { # Filter IPv4
# inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
$1 = "" ; # remove inet
$3 = "" ; # remove Bcast: ...
$4 = "" ; # remove Mask: ...
FS = ":" ; # separator ":"
$0 = $0 ; # reread to activate separator
$1 = "" ; # remove addr
FS = " " ; # set back separator to default " "
$0 = $0 ; # reread to activate separator (remove whitespaces)
print $1 ; # print IPv4 addr
} ' $DATFILE
)
else
__DATA = $( awk '
/inet6/ && /: [ 0-9a-eA-E] / { # Filter IPv6 exclude fxxx
# inet6 addr: 2001:db8::xxxx:xxxx/32 Scope:Global
FS = "/" ; # separator "/"
$0 = $0 ; # reread to activate separator
$2 = "" ; # remove everything behind "/"
FS = " " ; # set back separator to default " "
$0 = $0 ; # reread to activate separator
print $3 ; # print IPv6 addr
} ' $DATFILE
)
fi
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected on interface ' $ip_interface ' "
# DATFILE (sample)
# 5: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP qlen 1000\ link/ether 08:00:27:d0:10:32 brd ff:ff:ff:ff:ff:ff
# 5: eth1 inet 172.27.10.128/24 brd 172.27.10.255 scope global eth1\ valid_lft forever preferred_lft forever
# 5: eth1 inet 172.55.55.155/24 brd 172.27.10.255 scope global eth1\ valid_lft 12345sec preferred_lft 12345sec
# 5: eth1 inet6 2002:b0c7:f326::806b:c629:b8b9:433/128 scope global dynamic \ valid_lft 8026sec preferred_lft 8026sec
# 5: eth1 inet6 fd43:5368:6f6d:6500:806b:c629:b8b9:433/128 scope global dynamic \ valid_lft 8026sec preferred_lft 8026sec
# 5: eth1 inet6 fd43:5368:6f6d:6500:a00:27ff:fed0:1032/64 scope global dynamic \ valid_lft 14352sec preferred_lft 14352sec
# 5: eth1 inet6 2002:b0c7:f326::a00:27ff:fed0:1032/64 scope global dynamic \ valid_lft 14352sec preferred_lft 14352sec
# remove remove remove replace remove remove
# BROADCAST inet6 fxxx sec forever=>-1 between / and pref.. linestart to inet
sed -i " /BROADCAST/d; /inet6 f/d; s/sec//g; s/forever/-1/g; s/\/.*preferred_lft//g; s/^.* $ip_interface *//g " $DATFILE
local __TIME4 = 0; local __TIME6 = 0
local __TYP __ADR __TIME
while read __TYP __ADR __TIME; do
__TIME = ${ __TIME :- 0 } # supress shell errors on last (empty) line of DATFILE
# IPversion no "-1" record stored - now "-1" record or new time > oldtime
[ " $__TYP " = "inet6" -a $__TIME6 -ge 0 -a \( $__TIME -lt 0 -o $__TIME -gt $__TIME6 \) ] && {
__DATA6 = " $__ADR "
__TIME6 = " $__TIME "
}
[ " $__TYP " = "inet" -a $__TIME4 -ge 0 -a \( $__TIME -lt 0 -o $__TIME -gt $__TIME4 \) ] && {
__DATA4 = " $__ADR "
__TIME4 = " $__TIME "
}
done < $DATFILE
else else
write_log 3 " ifconfig Error: ' $__ERR ' "
write_log 3 " ip Error: ' $__ERR ' "
write_log 7 " $( cat $ERRFILE ) " # report error write_log 7 " $( cat $ERRFILE ) " # report error
fi fi
; ;
script)
write_log 7 " #> $ip_script > $DATFILE 2> $ERRFILE "
eval $ip_script >$DATFILE 2>$ERRFILE
else # use deprecated ifconfig
write_log 7 " #> ifconfig $ip_interface > $DATFILE 2> $ERRFILE "
ifconfig $ip_interface >$DATFILE 2>$ERRFILE
__ERR = $? __ERR = $?
if [ $__ERR -eq 0 ] ; then if [ $__ERR -eq 0 ] ; then
__DATA = $( cat $DATFILE )
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected via script ' $ip_script ' "
__DATA4 = $( awk '
/inet addr:/ { # Filter IPv4
# inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
$1 = "" ; # remove inet
$3 = "" ; # remove Bcast: ...
$4 = "" ; # remove Mask: ...
FS = ":" ; # separator ":"
$0 = $0 ; # reread to activate separator
$1 = "" ; # remove addr
FS = " " ; # set back separator to default " "
$0 = $0 ; # reread to activate separator (remove whitespaces)
print $1 ; # print IPv4 addr
} ' $DATFILE
)
__DATA6 = $( awk '
/inet6/ && /: [ 0-9a-eA-E] / { # Filter IPv6 exclude fxxx
# inet6 addr: 2001:db8::xxxx:xxxx/32 Scope:Global
FS = "/" ; # separator "/"
$0 = $0 ; # reread to activate separator
$2 = "" ; # remove everything behind "/"
FS = " " ; # set back separator to default " "
$0 = $0 ; # reread to activate separator
print $3 ; # print IPv6 addr
} ' $DATFILE
)
else else
write_log 3 " $ip_script Error: ' $__ERR ' "
write_log 3 " ifconfig Error: '$__ERR ' "
write_log 7 " $( cat $ERRFILE ) " # report error write_log 7 " $( cat $ERRFILE ) " # report error
fi fi
; ;
web)
do_transfer " $ip_url "
# use correct regular expression
[ $use_ipv6 -eq 0 ] \
&& __DATA = $( grep -m 1 -o " $IPV4_REGEX " $DATFILE ) \
|| __DATA = $( grep -m 1 -o " $IPV6_REGEX " $DATFILE )
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected on web at ' $ip_url ' "
; ;
*)
write_log 12 " Error in 'get_local_ip()' - unhandled ip_source ' $ip_source ' "
; ;
esac
fi
[ $use_ipv6 -eq 0 ] && __DATA = " $__DATA4 " || __DATA = " $__DATA6 "
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected on interface ' $ip_interface ' "
elif [ -n " $ip_script " ] ; then
write_log 7 " #> $ip_script > $DATFILE 2> $ERRFILE "
eval $ip_script >$DATFILE 2>$ERRFILE
__ERR = $?
if [ $__ERR -eq 0 ] ; then
__DATA = $( cat $DATFILE )
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected via script ' $ip_script ' "
else
write_log 3 " $ip_script Error: ' $__ERR ' "
write_log 7 " $( cat $ERRFILE ) " # report error
fi
elif [ -n " $ip_url " ] ; then
do_transfer " $ip_url "
# use correct regular expression
[ $use_ipv6 -eq 0 ] \
&& __DATA = $( grep -m 1 -o " $IPV4_REGEX " $DATFILE ) \
|| __DATA = $( grep -m 1 -o " $IPV6_REGEX " $DATFILE )
[ -n " $__DATA " ] && write_log 7 " Local IP ' $__DATA ' detected on web at ' $ip_url ' "
else
write_log 12 " Error in 'get_local_ip()' - unhandled ip_source ' $ip_source ' "
fi
# valid data found return here # valid data found return here
[ -n " $__DATA " ] && { [ -n " $__DATA " ] && {
eval " $1 =\" $__DATA \" " eval " $1 =\" $__DATA \" "
return 0 return 0
} }
[ $LUCI_HELPER ] && return 1 # no retry if called by LuCI helper script
[ -n " $LUCI_HELPER " ] && return 1 # no retry if called by LuCI helper script
write_log 7 " Data detected:\n $( cat $DATFILE ) "
write_log 7 "Data detected:"
write_log 7 " $( cat $DATFILE ) "
[ $VERBOSE_MODE -gt 1 ] && {
# VERBOSE_MODE > 1 then NO retry
write_log 4 " Get local IP via ' $ip_source ' failed - Verbose Mode: $VERBOSE_MODE - NO retry on error "
[ $VERBOSE -gt 1 ] && {
# VERBOSE > 1 then NO retry
write_log 4 " Get local IP via ' $ip_source ' failed - Verbose Mode: $VERBOSE - NO retry on error "
return 1 return 1
} }
@ -1107,11 +1141,11 @@ get_registered_ip() {
__ERR = 127 __ERR = 127
fi fi
[ $LUCI_HELPER ] && return $__ERR # no retry if called by LuCI helper script
[ -n " $LUCI_HELPER " ] && return $__ERR # no retry if called by LuCI helper script
[ -n " $2 " ] && return $__ERR # $2 is given -> no retry [ -n " $2 " ] && return $__ERR # $2 is given -> no retry
[ $VERBOSE_MODE -gt 1 ] && {
# VERBOSE_MODE > 1 then NO retry
write_log 4 " Get registered/public IP for ' $lookup_host ' failed - Verbose Mode: $VERBOSE_MODE - NO retry on error "
[ $VERBOSE -gt 1 ] && {
# VERBOSE > 1 then NO retry
write_log 4 " Get registered/public IP for ' $lookup_host ' failed - Verbose Mode: $VERBOSE - NO retry on error "
return $__ERR return $__ERR
} }
@ -1156,7 +1190,7 @@ trap_handler() {
fi ; ; fi ; ;
1) write_log 6 " PID ' $$ ' received 'SIGHUP' at $( eval $DATE_PROG ) " 1) write_log 6 " PID ' $$ ' received 'SIGHUP' at $( eval $DATE_PROG ) "
# reload config via starting the script again # reload config via starting the script again
eval " /usr/lib/ddns/dynamic_dns_updater.sh $SECTION_ID $VERBOSE_MODE & "
/usr/lib/ddns/dynamic_dns_updater.sh -v "0" -S " $__SECTIONID " -- start || true
exit 0 ; ; # and leave this one exit 0 ; ; # and leave this one
2) write_log 5 " PID ' $$ ' terminated by 'SIGINT' at $( eval $DATE_PROG ) \n " ; ; 2) write_log 5 " PID ' $$ ' terminated by 'SIGINT' at $( eval $DATE_PROG ) \n " ; ;
3) write_log 5 " PID ' $$ ' terminated by 'SIGQUIT' at $( eval $DATE_PROG ) \n " ; ; 3) write_log 5 " PID ' $$ ' terminated by 'SIGQUIT' at $( eval $DATE_PROG ) \n " ; ;
Christian Schoenebeck
8 years ago