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

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