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#!/bin/sh /etc/rc.common
# Copyright (C) 2006-2016 OpenWrt.org
START=80
STOP=10
USE_PROCD=1
COLLECTD_CONF="/tmp/collectd.conf"
LOG="logger -t collectd[$$] -p"
NICEPRIO=5
CONFIG_STRING=""
process_exec() {
printf "<Plugin exec>\n" >> "$COLLECTD_CONF"
config_foreach process_exec_sections exec_input "Exec"
config_foreach process_exec_sections exec_notify "NotificationExec"
printf "</Plugin>\n\n" >> "$COLLECTD_CONF"
}
process_exec_sections() {
local cfg="$1"
local section="$2"
local cmdline cmduser cmdgroup
config_get cmdline "$cfg" cmdline
[ -z "$cmdline" ] && {
$LOG notice "No cmdline option in config $cfg defined"
return 0
}
config_get cmduser "$cfg" cmduser
[ -z "$cmduser" ] && {
$LOG notice "No cmduser option in config $cfg defined"
return 0
}
config_get cmdgroup "$cfg" cmdgroup
if [ -z "$cmdgroup" ]; then
printf "\\t%s \"%s\" \"%s\"\n" "${section}" "${cmduser}" "${cmdline}" >> "$COLLECTD_CONF"
else
printf "\\t%s \"%s:%s\" \"%s\"\n" "${section}" "${cmduser}" "${cmdgroup}" "${cmdline}" >> "$COLLECTD_CONF"
fi
}
process_curl() {
printf "<Plugin curl>\n" >> "$COLLECTD_CONF"
config_foreach process_curl_page curl_page
printf "</Plugin>\n\n" >> "$COLLECTD_CONF"
}
process_curl_page() {
local cfg="$1"
local name url
config_get name "$cfg" name
[ -z "$name" ] && {
$LOG notice "No name option in config $cfg defined"
return 0
}
config_get url "$cfg" url
[ -z "$url" ] && {
$LOG notice "No URL option in config $cfg defined"
return 0
}
printf "\\t<Page \"%s\">\n" "${name}" >> "$COLLECTD_CONF"
printf "\\t\\tURL \"%s\"\n" "${url}" >> "$COLLECTD_CONF"
printf "\\t\\tMeasureResponseTime true\n" >> "$COLLECTD_CONF"
printf "\\t</Page>\n" >> "$COLLECTD_CONF"
}
process_network() {
local cfg="$1"
local TimeToLive Forward CacheFlush
printf "<Plugin network>\n" >> "$COLLECTD_CONF"
config_foreach process_network_sections network_listen "listen"
config_foreach process_network_sections network_server "server"
config_get TimeToLive "$cfg" TimeToLive
[ -z "$TimeToLive" ] || {
printf "\\tTimeToLive %s\n" "${TimeToLive}" >> "$COLLECTD_CONF"
}
config_get CacheFlush "$cfg" CacheFlush
[ -z "$CacheFlush" ] || {
printf "\\tCacheFlush %s\n" "${CacheFlush}" >> "$COLLECTD_CONF"
}
config_get_bool Forward "$cfg" Forward
if [ "$value" = "0" ]; then
printf "\\tForward false\n" >> "$COLLECTD_CONF"
else
printf "\\tForward true\n" >> "$COLLECTD_CONF"
fi
printf "</Plugin>\n\n" >> "$COLLECTD_CONF"
}
process_network_sections() {
local cfg="$1"
local section="$2"
local host port output
config_get host "$cfg" host
[ -z "$host" ] && {
$LOG notice "No host option in config $cfg defined"
return 0
}
if [ "$section" = "server" ]; then
output="Server \"$host\""
else
output="Listen \"$host\""
fi
config_get port "$cfg" port
if [ -z "$port" ]; then
printf "\\t%s\n" "${output}" >> "$COLLECTD_CONF"
else
printf "\\t%s \"%s\"\n" "${output}" "${port}" >> "$COLLECTD_CONF"
fi
}
process_iptables() {
local cfg="$1"
printf "<Plugin iptables>\n" >> "$COLLECTD_CONF"
config_foreach process_iptables_sections iptables_match
printf "</Plugin>\n\n" >> "$COLLECTD_CONF"
}
process_iptables_sections() {
local cfg="$1"
local table chain
config_get table "$cfg" table
[ -z "$table" ] && {
$LOG notice "No table option in config $cfg defined"
return 0
}
config_get chain "$cfg" chain
[ -z "$chain" ] && {
$LOG notice "No chain option in config $cfg defined"
return 0
}
config_get index "$cfg" index
[ -z "$index" ] && {
$LOG notice "No index option in config $cfg defined"
return 0
}
config_get name "$cfg" name
if [ -z "$name" ]; then
printf "\\tChain %s %s %s\n" "${table}" "${chain}" "${index}" >> "$COLLECTD_CONF"
else
printf "\\tChain %s %s %s \"%s\"\n" "${table}" "${chain}" "${index}" "${name}">> "$COLLECTD_CONF"
fi
}
CONFIG_LIST=""
add_list_option() {
local value="$1"
local option="$2"
local indent="$3"
CONFIG_LIST="${CONFIG_LIST}${indent}${option} \"$value\"\n"
}
process_generic() {
local cfg="$1"
local indent="$2"
local json="$3"
local config=""
. /usr/share/libubox/jshn.sh
json_init
json_load_file "$json"
json_select string 1>/dev/null 2>&1
if [ $? -eq 0 ]; then
json_get_keys keys
for key in ${keys}; do
json_get_var option "$key"
config_get value "$cfg" "$option" ""
[ -z "$value" ] || {
config="${config}${indent}${option} \"${value}\"\n"
}
done
json_select ..
fi
json_select bool 1>/dev/null 2>&1
if [ $? -eq 0 ]; then
json_get_keys keys
for key in ${keys}; do
json_get_var option "$key"
config_get_bool value "$cfg" "$option"
if [ "$value" = "0" ]; then
config="${config}${indent}${option} false\n"
fi
if [ "$value" = "1" ]; then
config="${config}${indent}${option} true\n"
fi
done
json_select ..
fi
json_select list 1>/dev/null 2>&1
if [ $? -eq 0 ]; then
json_get_keys keys
for key in ${keys}; do
json_get_var option "$key"
CONFIG_LIST=""
config_list_foreach "$cfg" "$option" add_list_option "$option" "$indent"
config="${config}${CONFIG_LIST}"
done
json_select ..
fi
[ -z "$config" ] || {
printf "%s<Plugin %s>\n" "${CONFIG_STRING}" "$cfg" >> "$COLLECTD_CONF"
echo -e "${config}" >> "$COLLECTD_CONF"
printf "%s</Plugin>\n" "${CONFIG_STRING}" >> "$COLLECTD_CONF"
}
printf "\n" >> "$COLLECTD_CONF"
}
process_plugins() {
local cfg="$1"
local enable keys key option value
config_get enable "$cfg" enable 0
[ "$enable" = "1" ] || return 0
[ -f "/usr/lib/collectd/$cfg.so" ] || {
$LOG notice "Plugin collectd-mod-$cfg not installed"
return 0
}
[ -f "/usr/share/collectd/plugin/$cfg.json" ] || {
$LOG notice "Configuration definition file for $cfg not found"
return 0
}
printf "LoadPlugin %s\n" "$cfg" >> "$COLLECTD_CONF"
case "$cfg" in
exec)
CONFIG_STRING=""
process_exec
;;
curl)
CONFIG_STRING=""
process_curl
;;
network)
CONFIG_STRING=""
process_network "$cfg"
;;
iptables)
CONFIG_STRING=""
process_iptables
;;
*)
CONFIG_STRING=""
process_generic "$cfg" "\\t" "/usr/share/collectd/plugin/$cfg.json"
;;
esac
}
process_config() {
local alt_config_file BaseDir Include PIDFile PluginDir TypesDB
local Interval ReadThreads Hostname
rm -f "$COLLECTD_CONF"
[ -f /etc/config/collectd ] || {
$LOG notice "UCI config not found"
return 0
}
config_load collectd
config_get alt_config_file globals alt_config_file
# If "alt_config_file" specified, use that instead
[ -n "$alt_config_file" ] && [ -f "$alt_config_file" ] && {
rm -f "$COLLECTD_CONF"
ln -s "$alt_config_file" "$COLLECTD_CONF"
return 0
}
# GOBAL CONFIG
config_get BaseDir globals BaseDir "/var/run/collectd"
printf "BaseDir \"%s\"\n" "$BaseDir" >> "$COLLECTD_CONF"
config_get Include globals Include "/tmp/collectd.d"
printf "Include \"%s\"\n" "$Include" >> "$COLLECTD_CONF"
mkdir -p "$Include"
config_get PIDFile globals PIDFile "/var/run/collectd.pid"
printf "PIDFile \"%s\"\n" "$PIDFile" >> "$COLLECTD_CONF"
config_get PluginDir globals PluginDir "/usr/lib/collectd"
printf "PluginDir \"%s\"\n" "$PluginDir" >> "$COLLECTD_CONF"
config_get TypesDB globals TypesDB "/usr/share/collectd/types.db"
printf "TypesDB \"%s\"\n" "$TypesDB" >> "$COLLECTD_CONF"
config_get Interval globals Interval 30
printf "Interval \"%s\"\n" "$Interval" >> "$COLLECTD_CONF"
config_get ReadThreads globals ReadThreads 2
printf "ReadThreads \"%s\"\n" "$ReadThreads" >> "$COLLECTD_CONF"
config_get Hostname globals Hostname "$(uname -n)"
printf "Hostname \"%s\"\n" "$Hostname" >> "$COLLECTD_CONF"
printf "\n" >> "$COLLECTD_CONF"
# PLUGIN CONFIG
config_foreach process_plugins plugin
}
start_service() {
process_config
procd_open_instance
procd_set_param command /usr/sbin/collectd
procd_append_param command -C "$COLLECTD_CONF"
procd_append_param command -f # don't daemonize
procd_set_param nice "$NICEPRIO"
procd_set_param stderr 1
procd_set_param respawn
procd_close_instance
}