#
# description: Startup/shutdown script for nodogsplash captive portal
#
+# Alexander Couzens <lynxis@fe80.eu> 2014
# P. Kube 2007
#
# (Based on wifidog startup script
# Comment by that author: Could be better, but it's working as expected)
#
+START=95
+STOP=95
+
+USE_PROCD=1
IPT=/usr/sbin/iptables
WD_DIR=/usr/bin
-OPTIONS=""
-START=65
-STOP=65
# -s -d 5 runs in background, with level 5 (not so verbose) messages to syslog
# -f -d 7 runs in foreground, with level 7 (verbose) debug messages to terminal
-# N.B.: -f will fail if starting at boot from rcS
-#OPTIONS="-s -d 5"
-
-start() {
- echo "Starting nodogsplash ... "
- if $WD_DIR/ndsctl status 2> /dev/null; then
- echo "FAILED: nodogsplash already running"
- else
- if test_module && $WD_DIR/nodogsplash $OPTIONS; then
- echo "OK: nodogsplash started"
- else
- echo "FAILED: nodogsplash exited with non 0 status"
- fi
- fi
+OPTIONS="-s -f -d 5"
+CONFIGFILE="/tmp/invalid_nodogsplash.conf"
+
+# nolog(loglevel message ...)
+nolog() {
+ local level=$1
+ shift
+ logger -s -t nodogsplash -p daemon.$level $@
}
-stop() {
- echo "Stopping nodogsplash ... "
- if $WD_DIR/ndsctl status 2> /dev/null; then
- if $WD_DIR/ndsctl stop; then
- echo "OK: nodogsplash stopped"
- else
- echo "FAILED: ndsctl stop exited with non 0 status"
- fi
- else
- echo "FAILED: nodogsplash was not running"
- fi
+# append_config_option <cfgfile> <uci_cfg_obj> <option_name> <config_counterpart> [<optional default>]
+# append "$config_counterpart $value" to cfgfile if option_name exists
+# e.g. append_config_option "$CONFIGFILE" "$cfg" bind_address BindAddress 0.0.0.0
+# will append "BindAddress 192.168.1.1" if uci bind_address is '192.168.1.1'
+append_config_option() {
+ local val=""
+ local cfg="$1"
+ local config_file="$2"
+ local option_name="$3"
+ local config_counterpart="$4"
+ local default="$5"
+ config_get val "$cfg" "$option_name" "$default"
+ [ -n "$val" ] && echo "" >> $config_file
+}
+
+setup_user_authentication() {
+ local cfg="$1"
+ local val
+
+ config_get_bool val "$cfg" authenticate_immediately 0
+ [ $val -gt 0 ] && echo "AuthenticateImmediately yes" >> $CONFIGFILE
+
+ config_get val "$cfg" username
+ if [ -n "${val}" ] ; then
+ echo "UsernameAuthentication" >> $CONFIGFILE
+ echo "Username ${val}" >> $CONFIGFILE
+ fi
+
+ config_get val "$cfg" password
+ if [ -n "${val}" ] ; then
+ echo "PasswordAuthentication" >> $CONFIGFILE
+ echo "Password ${val}" >> $CONFIGFILE
+ fi
+}
+
+setup_mac_lists() {
+ local cfg="$1"
+ local MAC=""
+ local val
+
+ append_mac() {
+ append MAC $1 ,
+ }
+
+ config_get val "$cfg" macmechanism
+ if [ -z "${val}" ] ; then
+ # check if we have AllowedMACList or BlockedMACList defined they will be ignored
+ config_get val "$cfg" allowedmac
+ if [ -n "${val}" ] ; then
+ echo "Ignoring allowedmac - macmechanism not \"allow\"" >&2
+ fi
+
+ config_get val "$cfg" blockedmac
+ if [ -n "${val}" ] ; then
+ echo "Ignoring blockedmac - macmechanism not \"block\"" >&2
+ fi
+ elif [ "${val}" == "allow" ] ; then
+ MAC=""
+ config_list_foreach "$cfg" allowedmac append_mac
+ echo "AllowedMACList $MAC" >> $CONFIGFILE
+ elif [ "${val}" == "block" ] ; then
+ MAC=""
+ config_list_foreach "$cfg" blockedmac append_mac
+ echo "BlockedMACList $MAC" >> $CONFIGFILE
+ else
+ nolog error "$cfg Invalid macmechanism '$val' - allow or block are valid."
+ return 1
+ fi
+ MAC=""
+ config_list_foreach "$cfg" trustedmac append_mac
+ [ -n "$MAC" ] && echo "TrustedMACList $MAC" >> $CONFIGFILE
+}
+
+setup_firewall() {
+ local cfg="$1"
+ local uciname
+ local val
+
+ append_firewall() {
+ echo " FirewallRule $1" >> $CONFIGFILE
+ }
+
+ for rule in $(echo authenticated-users preauthenticated-users users-to-router trusted-users trusted-users-to-router)
+ do
+ uci_name=${rule//-/_}
+ # uci does not allow - dashes
+ echo "FirewallRuleSet $rule {" >> $CONFIGFILE
+ config_list_foreach "$cfg" ${uci_name} append_firewall
+ echo "}" >> $CONFIGFILE
+ config_get val "$cfg" policy_${uci_name}
+ [ -n "${val}" ] && echo "EmptyRuleSetPolicy $rule $val" >> $CONFIGFILE
+ done
+}
+
+generate_uci_config() {
+ local cfg="$1"
+ local val
+ local ifname
+ local download
+ local upload
+
+ CONFIGFILE="/tmp/etc/nodogsplash_$cfg.conf"
+
+ echo "# auto-generated config file from /etc/config/nodogsplash" > $CONFIGFILE
+ config_get val "$cfg" network
+ if [ ! -n "${val}" ] ; then
+ nolog error "$cfg missing network"
+ return 1
+ fi
+
+ if ! network_get_device ifname $val ; then
+ nolog error "$cfg can not find ifname for network '${val}'"
+ return 1
+ fi
+
+ echo "GatewayInterface $ifname" >> $CONFIGFILE
+ config_get val "$cfg" externalnetwork
+ [ -n "${val}" ] && network_get_device ifname ${val} && echo "ExternalInterface $ifname" >> $CONFIGFILE
+
+ append_config_option "$CONFIGFILE" "$cfg" gatewayname GatewayName
+ append_config_option "$CONFIGFILE" "$cfg" gatewayaddress GatewayAddress
+ append_config_option "$CONFIGFILE" "$cfg" gatewayport GatewayPort
+ append_config_option "$CONFIGFILE" "$cfg" maxclients MaxClients
+ append_config_option "$CONFIGFILE" "$cfg" imagedir ImagesDir
+ append_config_option "$CONFIGFILE" "$cfg" redirecturl RedirectURL
+ append_config_option "$CONFIGFILE" "$cfg" clientidletimeout ClientIdleTimeout
+ append_config_option "$CONFIGFILE" "$cfg" clientforcetimeout ClientForceTimeout
+ append_config_option "$CONFIGFILE" "$cfg" gatewayiprange GatewayIPRange
+ append_config_option "$CONFIGFILE" "$cfg" passwordattempts PasswordAttempts
+ append_config_option "$CONFIGFILE" "$cfg" macmechanism MACMechanism
+ append_config_option "$CONFIGFILE" "$cfg" uploadlimit UploadLimit
+ append_config_option "$CONFIGFILE" "$cfg" downloadlimit DownloadLimit
+
+ config_get download "$cfg" downloadlimit
+ config_get upload "$cfg" uploadlimit
+ [ -n "$upload" -o -n "$download" ] && echo "TrafficControl yes" >> $CONFIGFILE
+
+ setup_mac_lists "$cfg"
+ setup_user_authentication "$cfg"
+ setup_firewall "$cfg"
+}
+
+# setup configuration and start instance
+create_instance() {
+ local cfg="$1"
+ local manual_config
+ local val
+ CONFIGFILE="/tmp/etc/nodogsplash_$cfg.conf"
+
+ config_get_bool val "$cfg" disabled 0
+ [ $val -gt 0 ] && return 0
+
+ config_get manual_config "$cfg" config ""
+ if [ ! -n "$manual_config" ] ; then
+ generate_uci_config "$cfg"
+ else
+ # check if configration exists
+ if [ ! -f "$manual_config" ] ; then
+ nolog error "Configuration file '$file' doesn't exists"
+ return 0
+ fi
+ CONFIGFILE="$manual_config"
+ fi
+
+ if ! test_module ; then
+ logger -s -t nodogsplash -p daemon.error "nodogsplash is missing some kernel modules"
+ fi
+
+ procd_open_instance $cfg
+ procd_set_param command /usr/bin/nodogsplash -c $CONFIGFILE $OPTIONS
+ procd_set_param respawn
+ procd_set_param file $CONFIGFILE
+ procd_close_instance
+}
+
+start_service() {
+ include /lib/functions
+
+ mkdir -p /tmp/etc/
+ config_load nodogsplash
+
+ config_foreach create_instance instance
+}
+
+stop_service() {
+ # nodogsplash doesn't exit fast enought, when procd terminates it.
+ # otherwise procd will restart nodogsplash twice. first time starting nodogsplash fails, second time it succeeds
+ sleep 1
}
status() {
- $WD_DIR/ndsctl status
+ $WD_DIR/ndsctl status
}
+# Test if we got all modules loaded
test_module() {
### Test ipt_mark with iptables
do_module_tests "ipt_mac"
do_module_tests "ipt_mark"
- # if not using traffic control,
- # you can comment out the following 3 lines:
- do_module_tests "imq" "numdevs=2"
- do_module_tests "ipt_IMQ"
- do_module_tests "sch_htb"
+
+ # test for imq modules, only if TrafficControl is enabled in conf
+ if ( grep -q -E '^[[:space:]]*TrafficControl[[:space:]]+(yes|true|1)' "$NDS_CONF" ) ; then
+ do_module_tests "imq" "numdevs=2"
+ do_module_tests "ipt_IMQ"
+ do_module_tests "sch_htb"
+ fi
}
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