package/base-files/default/etc/hotplug.d/net/10-net

   1 #!/bin/sh
   2 # Copyright (C) 2006 OpenWrt.org
   3
   4 find_name()
   5 {
   6         for ifname in lan wan wifi ${ifnames}; do
   7                 IFTYPE="${ifname}"
   8                 eval "IFPROTO=\"\${${IFTYPE}_proto}\""
   9                 eval "IFACE=\"\${${IFTYPE}_ifname}\""
  10                 case "$IFPROTO" in
  11                         ""|none);;
  12                         static|dhcp)
  13                                 [ "${IFACE}" = "$INTERFACE" ] && return 0
  14                                 [ "${IFACE%%[0-9]*}" = "br" ] && {
  15                                         eval "ifs=\"\${${IFTYPE}_ifnames}\""
  16                                         for part in $ifs; do
  17                                                 [ "$part" = "$INTERFACE" ] && return 0
  18                                         done
  19                                 }
  20                         ;;
  21                         pppoa)
  22                                 [ "$INTERFACE" = "atm0" \
  23                                   -a -x /sbin/ifup.${IFPROTO} ] && return 0
  24                         ;;
  25                         *)
  26                                 eval "device=\"\${${IFTYPE}_device}\""
  27                                 [ "$device" = "$INTERFACE" \
  28                                   -a -x /sbin/ifup.${IFPROTO} ] && return 0
  29                         ;;
  30                 esac
  31         done
  32         IFACE=""
  33         IFTYPE=""
  34         IFPROTO=""
  35         return 255
  36 }
  37
  38 do_ifup() {
  39         if="$3"
  40         eval "if_proto=\"\${${2}_proto}\""
  41
  42         pidfile=/var/run/${if}.pid
  43         [ -f $pidfile ] && $DEBUG kill $(cat $pidfile)
  44
  45         case "$1" in
  46                 static)
  47                         eval "ip=\"\${${2}_ipaddr}\""
  48                         eval "ip6=\"\${${2}_ip6addr}\""
  49                         eval "netmask=\"\${${2}_netmask}\""
  50                         eval "gateway=\"\${${2}_gateway}\""
  51                         eval "dns=\"\${${2}_dns}\""
  52                         eval "static_route=\"\${${2}_static_route}\""
  53
  54                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  55                         [ -n "$ip6" ] && $DEBUG ifconfig $if add $ip6
  56
  57                         [ -n "$static_route" ] && {
  58                                 for route in $static_route; do
  59                                         if [ "$(echo $route | cut -d \/ -f2)" != "32" ];
  60                                         then
  61                                                 route add -net $(echo $route | cut -d \/ -f1) netmask $(echo $route | cut -d \/ -f1) dev $if
  62                                         else
  63                                                 route add -host $(echo $route | cut -d \/ -f1) dev $if
  64                                         fi
  65                                 done
  66                         }
  67
  68                         ${gateway:+$DEBUG route add default gw $gateway}
  69
  70                         [ -f /tmp/resolv.conf ] || {
  71                                 debug "# --- creating /tmp/resolv.conf ---"
  72                                 for ns in $dns; do
  73                                         echo "nameserver $ns" >> /tmp/resolv.conf
  74                                 done
  75                         }
  76
  77                         env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" &
  78                 ;;
  79                 dhcp)
  80                         eval "ip=\"\${${2}_ipaddr}\""
  81                         eval "netmask=\"\${${2}_netmask}\""
  82                         eval "hostname=\"\${${2}_hostname}\""
  83
  84                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  85
  86                         args="-i $if ${ip:+-r $ip} -b -p $pidfile"
  87                         hostname="${hostname%%.*}"
  88                         args="$args${hostname:+ -H $hostname}"
  89                         [ "$if_proto" = "pptp" ] && args="$args -n -q" || args="$args -R &"
  90                         ${DEBUG:-eval} "udhcpc $args"
  91                         # hotplug events are handled by /usr/share/udhcpc/default.script
  92                 ;;
  93                 *)
  94                         if [ -x "/sbin/ifup.$1" ]; then
  95                                 ( $DEBUG . /sbin/ifup.$1 ${2} $3 )
  96                         fi
  97                 ;;
  98         esac
  99 }
 100
 101 do_register()
 102 {
 103         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
 104                 find_name || {
 105                         case "${INTERFACE%%[0-9]*}" in
 106                                 wds)
 107                                         for ifname in lan wifi; do
 108                                                 eval "if=\"\${${ifname}_ifname}\""
 109                                                 [ -z "$IFPROTO" ] && [ "$if" = "br0" ] && {
 110                                                         eval "IFPROTO=\"\${${2}_proto}\""
 111                                                         IFTYPE="${tmp}"
 112                                                 }
 113                                         done
 114                                         [ -z "$IFPROTO" ] && return 0
 115                                 ;;
 116                                 atm)
 117                                         for tmp in lan wan wifi ${ifnames}; do
 118                                                 eval "if_proto=\"\${${2}_proto}\""
 119                                                 [ "$if_proto" = "pppoa" ] && {
 120                                                         do_ifup "pppoa" "$tmp" "$INTERFACE"
 121                                                         return 0
 122                                                 }
 123                                         done
 124                                 ;;
 125                                 *)
 126                                         return 0
 127                                 ;;
 128                         esac
 129                 }
 130         }
 131
 132         case "${INTERFACE%%[0-9]*}" in
 133                 ppp|atm);;
 134                 *)
 135                         eval "mac=\"\${${IFTYPE}_hwaddr}\""
 136                         ${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac}
 137                 ;;
 138         esac
 139
 140         eval "if=\"\${${IFTYPE}_ifname}\""
 141         if [ "${if%%[0-9]}" = "br" ]; then
 142                 if_valid "$INTERFACE" && {
 143                         ifconfig "$if" 2>&- >&- || {
 144                                 eval "stp=\"\${${IFTYPE}_stp}\""
 145                                 $DEBUG brctl addbr "$if"
 146                                 $DEBUG brctl setfd "$if" 0
 147                                 $DEBUG brctl stp "$if" "${stp:-0}"
 148                         }
 149
 150                         if [ "$INTERFACE" != "$if" ]; then
 151                                 $DEBUG ifconfig "$INTERFACE" 0.0.0.0 up
 152                                 $DEBUG brctl addif "$if" "$INTERFACE"
 153                                 $DEBUG ifconfig "$INTERFACE" allmulti
 154                         else
 155                                 do_ifup "$IFPROTO" "$IFTYPE" "$if"
 156                         fi
 157                 }
 158         else
 159                 [ "${INTERFACE%%[0-9]*}" = "ppp" ] || do_ifup "$IFPROTO" "$IFTYPE" "$if"
 160         fi
 161 }
 162
 163 do_unregister() {
 164         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
 165                 find_name || return 0
 166         }
 167
 168         [ "${IFACE%%[0-9]*}" = "br" ] && {
 169                 if [ "$INTERFACE" != "$IFACE" ]; then
 170                         brctl delif "$IFACE" "$INTERFACE" 2>&- >&-
 171                 else
 172                         brctl delbr "$IFACE" 2>&- >&-
 173                 fi
 174         }
 175
 176         case "$IFPROTO" in
 177                 pppoe|pppoa|pptp)
 178                         killall pppd 2>&- >&-
 179                 ;;
 180                 dhcp)
 181                         [ -f /var/run/${INTERFACE}.pid ] && kill "$(cat /var/run/${INTERFACE}.pid)" 2>&- >&-
 182                 ;;
 183         esac
 184
 185         [ "${INTERFACE%%[0-9]*}" = "atm" ] || ifconfig "$INTERFACE" 0.0.0.0 down 2>&-
 186 }
 187
 188 case "$ACTION" in
 189         add|register) do_register;;
 190         remove|unregister) do_unregister;;
 191 esac