package/network/services/igmpproxy/files/igmpproxy.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (C) 2010-2014 OpenWrt.org
   3
   4 START=99
   5 USE_PROCD=1
   6 PROG=/usr/sbin/igmpproxy
   7 CONFIGFILE=/var/etc/igmpproxy.conf
   8
   9 igmp_header() {
  10         local quickleave verbose
  11         config_get_bool quickleave "$1" quickleave 0
  12         config_get verbose "$1" verbose 1
  13
  14         [ $verbose = "0" ] && logopts="-d"
  15         [ $verbose = "2" ] && logopts="-v"
  16         [ $verbose = "3" ] && logopts="-v -v"
  17
  18         mkdir -p /var/etc
  19         rm -f /var/etc/igmpproxy.conf
  20         [ $quickleave -gt 0 ] && echo "quickleave" >> /var/etc/igmpproxy.conf
  21
  22         [ -L /etc/igmpproxy.conf ] || ln -nsf /var/etc/igmpproxy.conf /etc/igmpproxy.conf
  23 }
  24
  25 igmp_add_phyint() {
  26         local network direction altnets device up
  27
  28         config_get network $1 network
  29         config_get direction $1 direction
  30         config_get altnets $1 altnet
  31
  32         local status="$(ubus -S call "network.interface.$network" status)"
  33         [ -n "$status" ] || return
  34
  35         json_load "$status"
  36         json_get_var device l3_device
  37         json_get_var up up
  38
  39         [ -n "$device" -a "$up" = "1" ] || {
  40                 procd_append_param error "$network is not up"
  41                 return;
  42         }
  43
  44         append netdevs "$device"
  45
  46         [ "$direction" = "upstream" ] && has_upstream=1
  47
  48         echo -e "\nphyint $device $direction ratelimit 0 threshold 1" >> /var/etc/igmpproxy.conf
  49
  50         if [ -n "$altnets" ]; then
  51                 local altnet
  52                 for altnet in $altnets; do
  53                         echo -e "\taltnet $altnet" >> /var/etc/igmpproxy.conf
  54                 done
  55         fi
  56 }
  57
  58 igmp_add_network() {
  59         local network
  60
  61         config_get network $1 network
  62         procd_add_interface_trigger "interface.*" $network /etc/init.d/igmpproxy reload
  63 }
  64
  65 igmp_add_firewall_routing() {
  66         config_get direction $1 direction
  67         config_get zone $1 zone
  68
  69         if [ "$direction" != "downstream" ] || [ -z "$zone" ]; then
  70                 return 0
  71         fi
  72
  73 # First drop SSDP packets then accept all other multicast
  74
  75         json_add_object ""
  76         json_add_string type rule
  77         json_add_string src "$upstream"
  78         json_add_string dest "$zone"
  79         json_add_string family ipv4
  80         json_add_string proto udp
  81         json_add_string dest_ip "239.255.255.250"
  82         json_add_string target DROP
  83         json_close_object
  84
  85         json_add_object ""
  86         json_add_string type rule
  87         json_add_string src "$upstream"
  88         json_add_string dest "$zone"
  89         json_add_string family ipv4
  90         json_add_string proto udp
  91         json_add_string dest_ip "224.0.0.0/4"
  92         json_add_string target ACCEPT
  93         json_close_object
  94 }
  95
  96 igmp_add_firewall_network() {
  97         config_get direction $1 direction
  98         config_get zone $1 zone
  99
 100         [ ! -z "$zone" ] || return
 101
 102         json_add_object ""
 103         json_add_string type rule
 104         json_add_string src "$zone"
 105         json_add_string family ipv4
 106         json_add_string proto igmp
 107         json_add_string target ACCEPT
 108         json_close_object
 109
 110         [ "$direction" = "upstream" ] && {
 111                 upstream="$zone"
 112                 config_foreach igmp_add_firewall_routing phyint
 113         }
 114 }
 115
 116 service_triggers() {
 117         procd_add_reload_trigger "igmpproxy"
 118         config_foreach igmp_add_network phyint
 119 }
 120
 121 start_service() {
 122         has_upstream=
 123         netdevs=
 124         logopts=
 125         config_load igmpproxy
 126
 127         config_foreach igmp_header igmpproxy
 128         config_foreach igmp_add_phyint phyint
 129         [ -n "$has_upstream" ] || return
 130
 131         procd_open_instance
 132         procd_set_param command $PROG '-n'
 133         [ -n "$logopts" ] && procd_append_param command $logopts
 134         procd_append_param command $CONFIGFILE
 135         procd_set_param file $CONFIGFILE
 136         procd_set_param netdev $netdevs
 137         procd_set_param respawn
 138
 139         procd_open_data
 140
 141         json_add_array firewall
 142         config_foreach igmp_add_firewall_network phyint
 143         json_close_array
 144
 145         procd_close_data
 146
 147         procd_close_instance
 148 }
 149
 150 service_started() {
 151         procd_set_config_changed firewall
 152 }
 153
 154 stop_service() {
 155         procd_set_config_changed firewall
 156 }