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
  51                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  52                         [ -n "$ip6" ] && $DEBUG ifconfig $if add $ip6
  53
  54                         ${gateway:+$DEBUG route add default gw $gateway}
  55
  56                         [ -f /tmp/resolv.conf ] || {
  57                                 debug "# --- creating /tmp/resolv.conf ---"
  58                                 for ns in $dns; do
  59                                         echo "nameserver $ns" >> /tmp/resolv.conf
  60                                 done
  61                         }
  62
  63                         env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" &
  64                 ;;
  65                 dhcp)
  66                         eval "ip=\"\${${2}_ipaddr}\""
  67                         eval "netmask=\"\${${2}_netmask}\""
  68                         eval "hostname=\"\${${2}_hostname}\""
  69
  70                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  71
  72                         args="-i $if ${ip:+-r $ip} -b -p $pidfile"
  73                         hostname="${hostname%%.*}"
  74                         args="$args${hostname:+ -H $hostname}"
  75                         [ "$if_proto" = "pptp" ] && args="$args -n -q" || args="$args -R &"
  76                         ${DEBUG:-eval} "udhcpc $args"
  77                         # hotplug events are handled by /usr/share/udhcpc/default.script
  78                 ;;
  79                 *)
  80                         if [ -x "/sbin/ifup.$1" ]; then
  81                                 ( $DEBUG . /sbin/ifup.$1 ${2} $3 )
  82                         fi
  83                 ;;
  84         esac
  85 }
  86
  87 do_register()
  88 {
  89         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
  90                 find_name || {
  91                         case "${INTERFACE%%[0-9]*}" in
  92                                 wds)
  93                                         for ifname in lan wifi; do
  94                                                 eval "if=\"\${${ifname}_ifname}\""
  95                                                 [ -z "$IFPROTO" ] && [ "$if" = "br0" ] && {
  96                                                         eval "IFPROTO=\"\${${2}_proto}\""
  97                                                         IFTYPE="${tmp}"
  98                                                 }
  99                                         done
 100                                         [ -z "$IFPROTO" ] && return 0
 101                                 ;;
 102                                 atm)
 103                                         for tmp in lan wan wifi ${ifnames}; do
 104                                                 eval "if_proto=\"\${${2}_proto}\""
 105                                                 [ "$if_proto" = "pppoa" ] && {
 106                                                         do_ifup "pppoa" "$tmp" "$INTERFACE"
 107                                                         return 0
 108                                                 }
 109                                         done
 110                                 ;;
 111                                 *)
 112                                         return 0
 113                                 ;;
 114                         esac
 115                 }
 116         }
 117
 118         case "${INTERFACE%%[0-9]*}" in
 119                 ppp|atm);;
 120                 *)
 121                         eval "mac=\"\${${IFTYPE}_hwaddr}\""
 122                         ${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac}
 123                 ;;
 124         esac
 125
 126         eval "if=\"\${${IFTYPE}_ifname}\""
 127         if [ "${if%%[0-9]}" = "br" ]; then
 128                 if_valid "$INTERFACE" && {
 129                         ifconfig "$if" 2>&- >&- || {
 130                                 eval "stp=\"\${${IFTYPE}_stp}\""
 131                                 $DEBUG brctl addbr "$if"
 132                                 $DEBUG brctl setfd "$if" 0
 133                                 $DEBUG brctl stp "$if" "${stp:-0}"
 134                         }
 135
 136                         if [ "$INTERFACE" != "$if" ]; then
 137                                 $DEBUG ifconfig "$INTERFACE" 0.0.0.0 up
 138                                 $DEBUG brctl addif "$if" "$INTERFACE"
 139                                 $DEBUG ifconfig "$INTERFACE" allmulti
 140                         else
 141                                 do_ifup "$IFPROTO" "$IFTYPE" "$if"
 142                         fi
 143                 }
 144         else
 145                 [ "${INTERFACE%%[0-9]*}" = "ppp" ] || do_ifup "$IFPROTO" "$IFTYPE" "$if"
 146         fi
 147 }
 148
 149 do_unregister() {
 150         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
 151                 find_name || return 0
 152         }
 153
 154         [ "${IFACE%%[0-9]*}" = "br" ] && {
 155                 if [ "$INTERFACE" != "$IFACE" ]; then
 156                         brctl delif "$IFACE" "$INTERFACE" 2>&- >&-
 157                 else
 158                         brctl delbr "$IFACE" 2>&- >&-
 159                 fi
 160         }
 161
 162         case "$IFPROTO" in
 163                 pppoe|pppoa|pptp)
 164                         killall pppd 2>&- >&-
 165                 ;;
 166                 dhcp)
 167                         [ -f /var/run/${INTERFACE}.pid ] && kill "$(cat /var/run/${INTERFACE}.pid)" 2>&- >&-
 168                 ;;
 169         esac
 170
 171         [ "${INTERFACE%%[0-9]*}" = "atm" ] || ifconfig "$INTERFACE" 0.0.0.0 down 2>&-
 172 }
 173
 174 case "$ACTION" in
 175         add|register) do_register;;
 176         remove|unregister) do_unregister;;
 177 esac