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

   1 #!/bin/sh
   2 setup_eth()
   3 {
   4         [ -f /proc/net/wl0 ] && {
   5                 lsmod | grep wlcompat >&- || insmod wlcompat
   6         }
   7         iwconfig "$INTERFACE" 2>&- | grep -v 'no wireless' >&- && {
   8                 /sbin/wifi
   9         }
  10         if="$(echo "$INTERFACE" | sed s,eth,et,)"
  11         ifconfig "$INTERFACE" up 2>&- >&-
  12         for vlan in $(seq 0 15); do
  13                 [ "$(nvram get vlan${vlan}hwname)" = "$if" ] && \
  14                         $DEBUG vconfig add "$INTERFACE" "$vlan"
  15         done
  16 }
  17
  18 find_name()
  19 {
  20         pppoa_ifname="atm0" # hack for ppp over atm, which has no ${proto}_ifname
  21         interfaces="lan wan wifi $(nvram get ifnames)"
  22         for ifname in $interfaces; do
  23                 IFTYPE="${ifname}"
  24                 IFPROTO="$(nvram get ${IFTYPE}_proto)"
  25                 IFACE="$(nvram get ${IFTYPE}_ifname)"
  26                 case "$IFPROTO" in
  27                         ""|none);;
  28                         static|dhcp)
  29                                 [ "${IFACE}" = "$INTERFACE" ] && return 0
  30                                 [ "${IFACE%%[0-9]*}" = "br" ] && {
  31                                         for part in $(nvram get ${IFTYPE}_ifnames); do
  32                                                 [ "$part" = "$INTERFACE" ] && return 0
  33                                         done
  34                                 }
  35                         ;;
  36                         *)
  37                                 [ "$(nvram get ${IFPROTO}_ifname)" = "$INTERFACE" \
  38                                   -a -x /sbin/ifup.${IFPROTO} ] && return 0
  39                         ;;
  40                 esac
  41         done
  42         IFACE=""
  43         IFTYPE=""
  44         IFPROTO=""
  45         return 255
  46 }
  47
  48 do_ifup() {
  49         if="$3"
  50         if_proto="$(nvram get ${2}_proto)"
  51
  52         pidfile=/var/run/${if}.pid
  53         [ -f $pidfile ] && $DEBUG kill $(cat $pidfile)
  54
  55         case "$1" in
  56                 static)
  57                         ip=$(nvram get ${2}_ipaddr)
  58                         netmask=$(nvram get ${2}_netmask)
  59                         gateway=$(nvram get ${2}_gateway)
  60
  61                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  62                         ${gateway:+$DEBUG route add default gw $gateway}
  63
  64                         [ -f /etc/resolv.conf ] || {
  65                                 debug "# --- creating /etc/resolv.conf ---"
  66                                 for dns in $(nvram get ${2}_dns); do
  67                                         echo "nameserver $dns" >> /etc/resolv.conf
  68                                 done
  69                         }
  70
  71                         env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" &
  72                 ;;
  73                 dhcp)
  74                         DHCP_IP=$(nvram get ${2}_ipaddr)
  75                         DHCP_NETMASK=$(nvram get ${2}_netmask)
  76                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  77
  78                         DHCP_ARGS="-i $if ${DHCP_IP:+-r $DHCP_IP} -b -p $pidfile"
  79                         DHCP_HOSTNAME=$(nvram get ${2}_hostname)
  80                         DHCP_HOSTNAME=${DHCP_HOSTNAME%%.*}
  81                         [ -z $DHCP_HOSTNAME ] || DHCP_ARGS="$DHCP_ARGS -H $DHCP_HOSTNAME"
  82                         [ "$if_proto" = "pptp" ] && DHCP_ARGS="$DHCP_ARGS -n -q" || DHCP_ARGS="$DHCP_ARGS -R &"
  83                         oldpid=$(cat $pidfile)
  84                         ${DEBUG:-eval} "udhcpc $DHCP_ARGS"
  85                         pidof udhcpc | grep "$oldpid" >&- 2>&- && {
  86                                 sleep 1
  87                                 kill -9 $oldpid
  88                         }
  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} $3 )
  94                         fi
  95                 ;;
  96         esac
  97 }
  98
  99 do_register()
 100 {
 101         case "${INTERFACE%%[0-9]*}" in
 102                 eth) setup_eth;;
 103         esac
 104
 105         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
 106                 find_name || {
 107                         case "${INTERFACE%%[0-9]*}" in
 108                                 wds)
 109                                         for tmp in lan wifi; do
 110                                                 [ -z "$IFPROTO" ] && [ "$(nvram get ${tmp}_ifname)" = "br0" ] && {
 111                                                         IFPROTO="$(nvram get ${tmp}_proto)"
 112                                                         IFTYPE="${tmp}"
 113                                                 }
 114                                         done
 115                                         [ -z "$IFPROTO" ] && return 0
 116                                 ;;
 117                                 atm)
 118                                         for tmp in lan wan wifi $(nvram get ifnames); do
 119                                                 [ "$(nvram get ${tmp}_proto)" = "pppoa" ] && {
 120                                                         do_ifup "pppoa" "$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                         mac=$(nvram get ${IFTYPE}_hwaddr)
 136                         ${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac}
 137                 ;;
 138         esac
 139
 140         if="$(nvram get ${IFTYPE}_ifname)"
 141         if [ "${if%%[0-9]}" = "br" ]; then
 142                 if_valid "$INTERFACE" && {
 143                         ifconfig "$if" 2>&- >&- || {
 144                                 stp=$(nvram get ${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                                 brctl addif "$if" "$INTERFACE"
 153                         else
 154                                 do_ifup "$IFPROTO" "$IFTYPE" "$if"
 155                         fi
 156                 }
 157         else
 158                 [ "${INTERFACE%%[0-9]*}" = "ppp" ] || do_ifup "$IFPROTO" "$IFTYPE" "$if"
 159         fi
 160 }
 161
 162 do_unregister() {
 163         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && find_name
 164         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && return 0
 165
 166         [ "${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         register) do_register;;
 188         unregister) do_unregister;;
 189 esac