| 1 | alias debug=${DEBUG:-:}
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| 2 |
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| 3 | # valid interface?
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| 4 | if_valid() (
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| 5 | ifconfig "$1" >&- 2>&- ||
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| 6 | [ "${1%%[0-9]}" = br ] || {
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| 7 | [ "${1%%[0-9]}" = vlan ] && (
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| 8 | i=${1#vlan}
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| 9 | hwname=$(nvram get vlan${i}hwname)
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| 10 | hwaddr=$(nvram get ${hwname}macaddr)
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| 11 | [ -z "$hwaddr" ] && return 1
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| 12 |
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| 13 | vif=$(ifconfig -a | awk \
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| 14 | '/^eth.*'$hwaddr'/ {print $1; exit}' IGNORECASE=1)
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| 15 | debug "# vlan$i => $vif"
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| 16 |
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| 17 | $DEBUG ifconfig $vif up
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| 18 | $DEBUG vconfig add $vif $i 2>&-
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| 19 | )
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| 20 | } || { debug "# missing interface '$1' ignored"; false; }
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| 21 | )
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| 22 |
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| 23 | do_ifup() {
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| 24 | if_proto=$(nvram get ${2}_proto)
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| 25 | if=$(nvram get ${2}_ifname)
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| 26 | [ "${if%%[0-9]}" = ppp ] && if=$(nvram get ${2}_device)
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| 27 |
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| 28 | pidfile=/var/run/${if}.pid
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| 29 | [ -f $pidfile ] && $DEBUG kill $(<$pidfile)
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| 30 |
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| 31 | case $1 in
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| 32 | static)
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| 33 | ip=$(nvram get ${2}_ipaddr)
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| 34 | netmask=$(nvram get ${2}_netmask)
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| 35 | gateway=$(nvram get ${2}_gateway)
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| 36 | mtu=$(nvram get ${2}_mtu)
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| 37 | static_route=$(nvram get ${2}_static_route)
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| 38 |
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| 39 | $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} ${mtu:+mtu $(($mtu))} broadcast + up
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| 40 | ${gateway:+$DEBUG route add default gw $gateway}
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| 41 |
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| 42 | [ -n "$static_route" ] && for route in $static_route; do
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| 43 | eval "set $(echo $route | sed 's/:/ /g')"
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| 44 | [ "$2" = "255.255.255.255" ] && opt=-host
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| 45 | $DEBUG route add ${opt:-"-net"} $1 netmask $2 gw $3 metric $4
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| 46 | done
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| 47 |
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| 48 | [ -f /etc/resolv.conf ] || {
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| 49 | debug "# --- creating /etc/resolv.conf ---"
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| 50 | for dns in $(nvram get ${2}_dns); do
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| 51 | echo "nameserver $dns" >>/etc/resolv.conf
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| 52 | done
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| 53 | }
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| 54 |
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| 55 | env -i ACTION=ifup INTERFACE="${2}" PROTO=static /sbin/hotplug iface &
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| 56 | ;;
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| 57 | dhcp)
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| 58 | DHCP_IP=$(nvram get ${2}_ipaddr)
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| 59 | DHCP_NETMASK=$(nvram get ${2}_netmask)
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| 60 | mtu=$(nvram get ${2}_mtu)
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| 61 | $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} ${mtu:+mtu $(($mtu))} broadcast + up
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| 62 |
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| 63 | DHCP_ARGS="-i $if ${DHCP_IP:+-r $DHCP_IP} -b -p $pidfile"
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| 64 | DHCP_HOSTNAME=$(nvram get ${2}_hostname)
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| 65 | DHCP_HOSTNAME=${DHCP_HOSTNAME%%.*}
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| 66 | [ -z $DHCP_HOSTNAME ] || DHCP_ARGS="$DHCP_ARGS -H $DHCP_HOSTNAME"
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| 67 | [ "$if_proto" = pptp ] && DHCP_ARGS="$DHCP_ARGS -n -q" || DHCP_ARGS="$DHCP_ARGS -R &"
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| 68 | [ -r $pidfile ] && oldpid=$(<$pidfile)
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| 69 | ${DEBUG:-eval} "udhcpc $DHCP_ARGS"
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| 70 | [ -n "$oldpid" ] && pidof udhcpc | grep "$oldpid" >&- 2>&- && {
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| 71 | sleep 1
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| 72 | kill -9 $oldpid
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| 73 | }
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| 74 | # hotplug events are handled by /usr/share/udhcpc/default.script
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| 75 | ;;
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| 76 | none|"")
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| 77 | ;;
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| 78 | *)
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| 79 | [ -x "/sbin/ifup.$1" ] && { $DEBUG /sbin/ifup.$1 ${2}; exit; }
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| 80 | echo "### ifup ${2}: ignored ${2}_proto=\"$1\" (not supported)"
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| 81 | ;;
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| 82 | esac
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| 83 | }
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| 84 |
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