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 $1 zone
  68
  69         [[ "$direction" = "downstream" && ! -z "$zone" ]] || return 0
  70
  71 # First drop SSDP packets then accept all other multicast
  72
  73         json_add_object ""
  74         json_add_string type rule
  75         json_add_string src "$upstream"
  76         json_add_string dest "$zone"
  77         json_add_string family ipv4
  78         json_add_string proto udp
  79         json_add_string dest_ip "239.255.255.250"
  80         json_add_string target DROP
  81         json_close_object
  82
  83         json_add_object ""
  84         json_add_string type rule
  85         json_add_string src "$upstream"
  86         json_add_string dest "$zone"
  87         json_add_string family ipv4
  88         json_add_string proto udp
  89         json_add_string dest_ip "224.0.0.0/4"
  90         json_add_string target ACCEPT
  91         json_close_object
  92 }
  93
  94 igmp_add_firewall_network() {
  95         config_get direction $1 direction
  96         config_get zone $1 zone
  97
  98         [ ! -z "$zone" ] || return
  99
 100         json_add_object ""
 101         json_add_string type rule
 102         json_add_string src "$zone"
 103         json_add_string family ipv4
 104         json_add_string proto igmp
 105         json_add_string target ACCEPT
 106         json_close_object
 107
 108         [[ "$direction" = "upstream" ]] && {
 109                 upstream="$zone"
 110                 config_foreach igmp_add_firewall_routing phyint
 111         }
 112 }
 113
 114 service_triggers() {
 115         procd_add_reload_trigger "igmpproxy"
 116         config_foreach igmp_add_network phyint
 117 }
 118
 119 start_service() {
 120         has_upstream=
 121         netdevs=
 122         logopts=
 123         config_load igmpproxy
 124
 125         config_foreach igmp_header igmpproxy
 126         config_foreach igmp_add_phyint phyint
 127         [ -n "$has_upstream" ] || return
 128
 129         procd_open_instance
 130         procd_set_param command $PROG '-n'
 131         [ -n "$logopts" ] && procd_append_param command $logopts
 132         procd_append_param command $CONFIGFILE
 133         procd_set_param file $CONFIGFILE
 134         procd_set_param netdev $netdevs
 135         procd_set_param respawn
 136
 137         procd_open_data
 138
 139         json_add_array firewall
 140         config_foreach igmp_add_firewall_network phyint
 141         json_close_array
 142
 143         procd_close_data
 144
 145         procd_close_instance
 146 }
 147
 148 service_started() {
 149         procd_set_config_changed firewall
 150 }
 151
 152 stop_service() {
 153         procd_set_config_changed firewall
 154 }