#!/bin/sh /etc/rc.common # Copyright (C) 2008 Alina Friedrichsen # Special thanks to bittorf wireless )) START=50 BIN=/usr/sbin/olsrd CONF=/var/etc/olsrd.conf PID=/var/run/olsrd.pid OLSRD_OLSRD_SCHEMA='ignore:internal config_file:internal DebugLevel=0 IpVersion=4 AllowNoInt:bool=1 Pollrate=0.025 TcRedundancy=2 MprCoverage=3 LinkQualityFishEye=1 LinkQualityWinSize=100 LinkQualityDijkstraLimit=0+9.0 LinkQualityLevel=2 UseHysteresis:bool=0 FIBMetric=flat ClearScreen:bool=1 Willingness=3 LinkQualityAging=0.1 LinkQualityAlgorithm=etx_fpm' OLSRD_IPCCONNECT_SCHEMA='ignore:internal Host:list Net:list2' OLSRD_LOADPLUGIN_SCHEMA='ignore:internal library:internal Host:list Net:list2 Ping:list redistribute:list NonOlsrIf:list name:list lat lon latlon_infile HNA:list2 hosts:list2' OLSRD_INTERFACE_SCHEMA='ignore:internal interface:internal AutoDetectChanges:bool Ip4Broadcast=255.255.255.255 HelloInterval=2.0 HelloValidityTime=40.0 TcInterval=5.0 TcValidityTime=100.0 MidInterval=18.0 MidValidityTime=324.0 HnaInterval=18.0 HnaValidityTime=108.0' T=' ' N=' ' validate_varname() { local varname=$1 [ -z "$varname" -o "$varname" != "${varname%%[!A-Za-z0-9_]*}" ] && return 1 return 0 } validate_ifname() { local ifname=$1 [ -z "$ifname" -o "$ifname" != "${ifname%%[!A-Za-z0-9.:_-]*}" ] && return 1 return 0 } validate_olsrd_option() { local str=$1 [ -z "$str" -o "$str" != "${str%%[! 0-9A-Za-z./:_-]*}" ] && return 1 return 0 } get_ifname() { IFNAME= local interface=$1 validate_varname "$interface" || return 1 local ifname config_get ifname "$interface" ifname validate_ifname "$ifname" || return 1 IFNAME=$ifname return 0 } system_config() { local cfg=$1 local cfgt local hostname local latlon config_get cfgt "$cfg" TYPE if [ "$cfgt" = "system" ]; then config_get hostname "$cfg" hostname hostname=${hostname:-OpenWrt} SYSTEM_HOSTNAME=$hostname fi if [ -z "$SYSTEM_LAT" -o -z "$SYSTEM_LON" ]; then config_get latlon "$cfg" latlon IFS=" ${T}${N}," set -- $latlon unset IFS SYSTEM_LAT=$1 SYSTEM_LON=$2 fi } olsrd_find_config_file() { local cfg=$1 validate_varname "$cfg" || return 0 config_get_bool ignore "$cfg" ignore 0 [ "$ignore" -ne 0 ] && return 0 config_get OLSRD_CONFIG_FILE "$cfg" config_file return 0 } warning_invalid_value() { local package=$1 validate_varname "$package" || package= local config=$2 validate_varname "$config" || config= local option=$3 validate_varname "$option" || option= echo -n "Warning: Invalid value" 1>&2 if [ -n "$package" -a -n "$config" ]; then echo -n " in option '$package.$config${option:+.}$option'" 1>&2 fi echo ", skipped" 1>&2 return 0 } olsrd_write_option() { local param=$1 local cfg=$2 validate_varname "$cfg" || return 1 local option=$3 validate_varname "$option" || return 1 local value=$4 local option_type=$5 if [ "$option_type" = bool ]; then case "$value" in 1|on|true|enabled|yes) value=yes;; 0|off|false|disabled|no) value=no;; *) warning_invalid_value olsrd "$cfg" "$option"; return 1;; esac fi if ! validate_olsrd_option "$value"; then warning_invalid_value olsrd "$cfg" "$option" return 1 fi if [ "$value" != "${value%%[G-Zg-z_-]*}" ]; then if [ "$value" != "yes" -a "$value" != "no" ]; then value="\"$value\"" fi fi echo -n "${N}$param$option $value" return 0 } olsrd_write_plparam() { local param=$1 local cfg=$2 validate_varname "$cfg" || return 1 local option=$3 validate_varname "$option" || return 1 local value=$4 local option_type=$5 local _option if [ "$option_type" = bool ]; then case "$value" in 1|on|true|enabled|yes) value=yes;; 0|off|false|disabled|no) value=no;; *) warning_invalid_value olsrd "$cfg" "$option"; return 1;; esac fi if ! validate_olsrd_option "$value"; then warning_invalid_value olsrd "$cfg" "$option" return 1 fi IFS='-_' set -- $option option="$*" unset IFS _option="$option" if [ "$option" = 'hosts' ]; then set -- $value option=$1 shift value="$*" fi echo -n "${N}${param}PlParam \"$option\" \"$value\"" return 0 } config_update_schema() { unset IFS local schema_varname=$1 validate_varname "$schema_varname" || return 1 local command=$2 validate_varname "$command" || return 1 local option=$3 validate_varname "$option" || return 1 local value=$4 local schema local cur_option case "$varname" in *_LENGTH) return 0;; *_ITEM*) return 0;; esac eval "export -n -- \"schema=\${$schema_varname}\"" for cur_option in $schema; do [ "${cur_option%%[:=]*}" = "$option" ] && return 0 done if [ "$command" = list ]; then set -- $value if [ "$#" -ge "3" ]; then schema_entry="$option:list3" elif [ "$#" -ge "2" ]; then schema_entry="$option:list2" else schema_entry="$option:list" fi else schema_entry="$option" fi append "$schema_varname" "$schema_entry" return 0 } config_write_options() { unset IFS local schema=$1 local cfg=$2 validate_varname "$cfg" || return 1 local write_func=$3 [ -z "$write_func" ] && output_func=echo local write_param=$4 local schema_entry local option local option_length local option_type local default local value local list_size local list_item local list_value local i local position for schema_entry in $schema; do default=${schema_entry#*[=]} [ "$default" = "$schema_entry" ] && default= option=${schema_entry%%[=]*} IFS=':' set -- $option unset IFS option=$1 option_type=$2 validate_varname "$option" || continue [ -z "$option_type" ] || validate_varname "$option_type" || continue [ "$option_type" = internal ] && continue config_get value "$cfg" "$option" if [ -z "$value" ]; then IFS='+' set -- $default unset IFS value=$* elif [ "$value" = '-' -a -n "$default" ]; then continue fi [ -z "$value" ] && continue case "$option_type" in list) list_size=1;; list2) list_size=2;; list3) list_size=3;; *) list_size=0;; esac if [ "$list_size" -gt 0 ]; then config_get option_length "$cfg" "${option}_LENGTH" if [ -n "$option_length" ]; then i=1 while [ "$i" -le "$option_length" ]; do config_get list_value "$cfg" "${option}_ITEM$i" "$write_func" "$write_param" "$cfg" "$option" "$list_value" "$option_type" || break i=$((i + 1)) done else list_value= i=0 for list_item in $value; do append "list_value" "$list_item" i=$((i + 1)) position=$((i % list_size)) if [ "$position" -eq 0 ]; then "$write_func" "$write_param" "$cfg" "$option" "$list_value" "$option_type" || break list_value= fi done [ "$position" -ne 0 ] && "$write_func" "$write_param" "$cfg" "$option" "$list_value" "$option_type" fi else "$write_func" "$write_param" "$cfg" "$option" "$value" "$option_type" fi done return 0 } olsrd_write_olsrd() { local cfg=$1 validate_varname "$cfg" || return 0 local ignore config_get_bool ignore "$cfg" ignore 0 [ "$ignore" -ne 0 ] && return 0 [ "$OLSRD_COUNT" -gt 0 ] && return 0 config_write_options "$OLSRD_OLSRD_SCHEMA" "$cfg" olsrd_write_option echo OLSRD_COUNT=$((OLSRD_COUNT + 1)) return 0 } olsrd_write_ipcconnect() { local cfg=$1 validate_varname "$cfg" || return 0 local ignore config_get_bool ignore "$cfg" ignore 0 [ "$ignore" -ne 0 ] && return 0 [ "$IPCCONNECT_COUNT" -gt 0 ] && return 0 echo -n "${N}IpcConnect${N}{" config_write_options "$OLSRD_IPCCONNECT_SCHEMA" "$cfg" olsrd_write_option "${T}" echo "${N}}" IPCCONNECT_COUNT=$((IPCCONNECT_COUNT + 1)) return 0 } olsrd_write_hna4() { local cfg=$1 validate_varname "$cfg" || return 0 local ignore config_get_bool ignore "$cfg" ignore 0 [ "$ignore" -ne 0 ] && return 0 config_get netaddr "$cfg" netaddr if ! validate_olsrd_option "$netaddr"; then warning_invalid_value olsrd "$cfg" "netaddr" return 0 fi config_get netmask "$cfg" netmask if ! validate_olsrd_option "$netmask"; then warning_invalid_value olsrd "$cfg" "netmask" return 0 fi [ "$HNA4_COUNT" -le 0 ] && echo -n "${N}Hna4${N}{" echo -n "${N}${T}$netaddr $netmask" HNA4_COUNT=$((HNA4_COUNT + 1)) return 0 } olsrd_write_hna6() { local cfg=$1 validate_varname "$cfg" || return 0 local ignore config_get_bool ignore "$cfg" ignore 0 [ "$ignore" -ne 0 ] && return 0 config_get netaddr "$cfg" netaddr if ! validate_olsrd_option "$netaddr"; then warning_invalid_value olsrd "$cfg" "netaddr" return 0 fi config_get prefix "$cfg" prefix if ! validate_olsrd_option "$prefix"; then warning_invalid_value olsrd "$cfg" "prefix" return 0 fi [ "$HNA6_COUNT" -le 0 ] && echo -n "${N}Hna6${N}{" echo -n "${N}${T}$netaddr $prefix" HNA6_COUNT=$((HNA6_COUNT + 1)) return 0 } olsrd_write_loadplugin() { local cfg=$1 validate_varname "$cfg" || return 0 local ignore local name local suffix local lat local lon local latlon_infile config_get_bool ignore "$cfg" ignore 0 [ "$ignore" -ne 0 ] && return 0 config_get library "$cfg" library if ! validate_olsrd_option "$library"; then warning_invalid_value olsrd "$cfg" "library" return 0 fi if ! [ -x "/lib/$library" -o -x "/usr/lib/$library" -o -x "/usr/local/lib/$library" ]; then echo "Warning: Plugin library '$library' not found, skipped" 1>&2 return 0 fi case "$library" in olsrd_nameservice.*) config_get name "$cfg" name [ -z "$name" ] && config_set "$cfg" name $SYSTEM_HOSTNAME config_get suffix "$cfg" suffix [ -z "$suffix" ] && config_set "$cfg" suffix '.olsr' config_get lat "$cfg" lat config_get lon "$cfg" lon config_get latlon_infile "$cfg" latlon_infile if [ \( -z "$lat" -o -z "$lat" \) -a -z "$latlon_infile" ]; then if [ -f '/var/run/latlon.txt' ]; then config_set "$cfg" lat '' config_set "$cfg" lon '' config_set "$cfg" latlon_infile '/var/run/latlon.txt' else config_set "$cfg" lat "$SYSTEM_LAT" config_set "$cfg" lon "$SYSTEM_LON" fi fi config_get latlon_file "$cfg" latlon_file [ -z "$latlon_file" ] && config_set "$cfg" latlon_file '/var/run/latlon.js' ;; esac echo -n "${N}LoadPlugin \"$library\"${N}{" config_write_options "$OLSRD_LOADPLUGIN_SCHEMA" "$cfg" olsrd_write_plparam "${T}" echo "${N}}" return 0 } olsrd_write_interface() { local cfg=$1 validate_varname "$cfg" || return 0 local ignore local interfaces local interface local ifnames config_get_bool ignore "$cfg" ignore 0 [ "$ignore" -ne 0 ] && return 0 ifnames= config_get interfaces "$cfg" interface for interface in $interfaces; do if validate_varname "$interface"; then if get_ifname "$interface"; then ifnames="$ifnames \"$IFNAME\"" else echo "Warning: Interface '$interface' not found, skipped" 1>&2 fi else warning_invalid_value olsrd "$cfg" "interface" fi done [ -z "$ifnames" ] && return 0 echo -n "${N}Interface$ifnames${N}{" config_write_options "$OLSRD_INTERFACE_SCHEMA" "$cfg" olsrd_write_option "${T}" echo "${N}}" INTERFACES_COUNT=$((INTERFACES_COUNT + 1)) return 0 } olsrd_update_schema() { local command="$1" validate_varname "$command" || return 0 local varname="$2" validate_varname "$varname" || return 0 local value="$3" local cfg="$CONFIG_SECTION" local cfgt local cur_varname config_get cfgt "$cfg" TYPE case "$cfgt" in olsrd) config_update_schema OLSRD_OLSRD_SCHEMA "$command" "$varname" "$value";; IpcConnect) config_update_schema OLSRD_IPCCONNECT_SCHEMA "$command" "$varname" "$value";; LoadPlugin) config_update_schema OLSRD_LOADPLUGIN_SCHEMA "$command" "$varname" "$value";; Interface) config_update_schema OLSRD_INTERFACE_SCHEMA "$command" "$varname" "$value";; esac return 0 } olsrd_write_config() { OLSRD_COUNT=0 config_foreach olsrd_write_olsrd olsrd IPCCONNECT_COUNT=0 config_foreach olsrd_write_ipcconnect IpcConnect HNA4_COUNT=0 config_foreach olsrd_write_hna4 Hna4 [ "$HNA4_COUNT" -gt 0 ] && echo "${N}}" HNA6_COUNT=0 config_foreach olsrd_write_hna6 Hna6 [ "$HNA6_COUNT" -gt 0 ] && echo "${N}}" config_foreach olsrd_write_loadplugin LoadPlugin INTERFACES_COUNT=0 config_foreach olsrd_write_interface Interface echo return 0 } start() { ### check for running instance if [ -s $PID ]; then if kill -0 $(cat $PID) 2>&-; then echo "there is already a running instance ($(cat $PID))" return 1 fi fi SYSTEM_HOSTNAME= SYSTEM_LAT= SYSTEM_LON= config_load system config_foreach system_config system option_cb() { olsrd_update_schema "option" "$@" } list_cb() { olsrd_update_schema "list" "$@" } include /lib/network scan_interfaces config_load olsrd reset_cb OLSRD_CONFIG_FILE= config_foreach olsrd_find_config_file olsrd if [ -z "$OLSRD_CONFIG_FILE" ]; then ### generate config mkdir -p ${CONF%/*} olsrd_write_config > $CONF if [ "$INTERFACES_COUNT" -gt 0 -a "$OLSRD_COUNT" -gt 0 ]; then OLSRD_CONFIG_FILE=$CONF fi fi [ -z "$OLSRD_CONFIG_FILE" ] && return 1 ### start olsrd start-stop-daemon -b -m -p $PID -x $BIN -S -- -f $CONF -nofork } stop() { ### stop olsrd start-stop-daemon -q -p $PID -a ${BIN##*/} -K } restart() { ### override generic restart because we need some time between stop and start stop; sleep 3; start }