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 ${IFTYPE}_ifname)"
  26                 [ -z "$IFPROTO" -o "$IFPROTO" = "none" ] || {
  27                         [ "${IFACE}" = "$INTERFACE" ] && return 0
  28                         case "$IFPROTO" in
  29                                 static|dhcp)
  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                 }
  42         done
  43         IFACE=""
  44         IFTYPE=""
  45         IFPROTO=""
  46         return 255
  47 }
  48
  49 do_ifup() {
  50         if="$3"
  51         if_proto="$(nvram get ${2}_proto)"
  52
  53         pidfile=/var/run/${if}.pid
  54         [ -f $pidfile ] && $DEBUG kill $(cat $pidfile)
  55
  56         case "$1" in
  57                 static)
  58                         ip=$(nvram get ${2}_ipaddr)
  59                         netmask=$(nvram get ${2}_netmask)
  60                         gateway=$(nvram get ${2}_gateway)
  61
  62                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  63                         ${gateway:+$DEBUG route add default gw $gateway}
  64
  65                         [ -f /etc/resolv.conf ] || {
  66                                 debug "# --- creating /etc/resolv.conf ---"
  67                                 for dns in $(nvram get ${2}_dns); do
  68                                         echo "nameserver $dns" >> /etc/resolv.conf
  69                                 done
  70                         }
  71
  72                         env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" &
  73                 ;;
  74                 dhcp)
  75                         DHCP_IP=$(nvram get ${2}_ipaddr)
  76                         DHCP_NETMASK=$(nvram get ${2}_netmask)
  77                         $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
  78
  79                         DHCP_ARGS="-i $if ${DHCP_IP:+-r $DHCP_IP} -b -p $pidfile"
  80                         DHCP_HOSTNAME=$(nvram get ${2}_hostname)
  81                         DHCP_HOSTNAME=${DHCP_HOSTNAME%%.*}
  82                         [ -z $DHCP_HOSTNAME ] || DHCP_ARGS="$DHCP_ARGS -H $DHCP_HOSTNAME"
  83                         [ "$if_proto" = "pptp" ] && DHCP_ARGS="$DHCP_ARGS -n -q" || DHCP_ARGS="$DHCP_ARGS -R &"
  84                         oldpid=$(cat $pidfile)
  85                         ${DEBUG:-eval} "udhcpc $DHCP_ARGS"
  86                         pidof udhcpc | grep "$oldpid" >&- 2>&- && {
  87                                 sleep 1
  88                                 kill -9 $oldpid
  89                         }
  90                         # hotplug events are handled by /usr/share/udhcpc/default.script
  91                 ;;
  92                 *)
  93                         if [ -x "/sbin/ifup.$1" ]; then
  94                                 ( $DEBUG . /sbin/ifup.$1 ${2} $3 )
  95                         fi
  96                 ;;
  97         esac
  98 }
  99
 100 do_register()
 101 {
 102         case "${INTERFACE%%[0-9]*}" in
 103                 eth) setup_eth;;
 104         esac
 105
 106         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
 107                 find_name || {
 108                         case "${INTERFACE%%[0-9]*}" in
 109                                 wds)
 110                                         for tmp in lan wifi; do
 111                                                 [ -z "$IFPROTO" ] && [ "$(nvram get ${tmp}_ifname)" = "br0" ] && {
 112                                                         IFPROTO="$(nvram get ${tmp}_proto)"
 113                                                         IFTYPE="${tmp}"
 114                                                 }
 115                                         done
 116                                         [ -z "$IFPROTO" ] && return 0
 117                                 ;;
 118                                 atm)
 119                                         for tmp in lan wan wifi $(nvram get ifnames); do
 120                                                 [ "$(nvram get ${tmp}_proto)" = "pppoa" ] && {
 121                                                         do_ifup "pppoa" "$tmp" "$INTERFACE"
 122                                                         return 0
 123                                                 }
 124                                         done
 125                                 ;;
 126                                 *)
 127                                         return 0
 128                                 ;;
 129                         esac
 130                 }
 131         }
 132
 133         case "${INTERFACE%%[0-9]*}" in
 134                 ppp|atm);;
 135                 *)
 136                         mac=$(nvram get ${IFTYPE}_hwaddr)
 137                         ${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac}
 138                 ;;
 139         esac
 140
 141         if="$(nvram get ${IFTYPE}_ifname)"
 142         if [ "${if%%[0-9]}" = "br" ]; then
 143                 if_valid "$INTERFACE" && {
 144                         ifconfig "$if" 2>&- >&- || {
 145                                 stp=$(nvram get ${IFTYPE}_stp)
 146                                 $DEBUG brctl addbr "$if"
 147                                 $DEBUG brctl setfd "$if" 0
 148                                 $DEBUG brctl stp "$if" "${stp:-0}"
 149                         }
 150
 151                         if [ "$INTERFACE" != "$if" ]; then
 152                                 $DEBUG ifconfig "$INTERFACE" 0.0.0.0 up
 153                                 brctl addif "$if" "$INTERFACE"
 154                         else
 155                                 do_ifup "$IFPROTO" "$IFTYPE" "$if"
 156                         fi
 157                 }
 158         else
 159                 do_ifup "$IFPROTO" "$IFTYPE" "$if"
 160         fi
 161 }
 162
 163 do_unregister() {
 164         [ "${INTERFACE%%[0-9]*}" = "atm" ] || ifconfig "$INTERFACE" 0.0.0.0 down 2>&-
 165         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && find_name
 166         [ -z "$IFTYPE" -o -z "$IFPROTO" ] && return 0
 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 "$IFPROTO" in
 177                 pppoe|pppoa|pptp)
 178                         killall ifup.${IFPROTO}
 179                         killall pppd
 180                 ;;
 181                 dhcp)
 182                         [ -f /var/run/${INTERFACE}.pid ] && kill "$(cat /var/run/${INTERFACE}.pid)" 2>&- >&-
 183                 ;;
 184         esac
 185 }
 186
 187 case "$ACTION" in
 188         register) do_register;;
 189         unregister) do_unregister;;
 190 esac