2 # Copyright (C) 2006 OpenWrt.org
7 local iftype device iface ifaces ifn
8 for ifn in $interfaces; do
9 config_get iftype "$ifn" type
10 config_get iface "$ifn" ifname
12 bridge) config_get ifaces "$ifn" ifnames;;
14 config_get device "$ifn" device
15 for ifc in $device $iface $ifaces; do
16 [ "$ifc" = "$1" ] && {
27 local mode iftype iface ifname device
32 config_set "$2" auto 1
35 config_get iftype "$CONFIG_SECTION" TYPE
38 config_get proto "$CONFIG_SECTION" proto
39 append interfaces "$CONFIG_SECTION"
40 config_get iftype "$CONFIG_SECTION" type
41 config_get ifname "$CONFIG_SECTION" ifname
42 config_set "$CONFIG_SECTION" device "$ifname"
45 config_set "$CONFIG_SECTION" ifnames "$ifname"
46 config_set "$CONFIG_SECTION" ifname br-"$CONFIG_SECTION"
49 ( type "scan_$proto" ) >/dev/null 2>/dev/null && eval "scan_$proto '$CONFIG_SECTION'"
59 [ "$1" = "$vif" ] || ifconfig "$1" >/dev/null 2>/dev/null || {
60 ifconfig "$vif" up 2>/dev/null >/dev/null || add_vlan "$vif"
61 $DEBUG vconfig add "$vif" "${1##*\.}"
65 # Create the interface, if necessary.
66 # Return status 0 indicates that the setup_interface() call should continue
67 # Return status 1 means that everything is set up already.
73 # if we're called for the bridge interface itself, don't bother trying
74 # to create any interfaces here. The scripts have already done that, otherwise
75 # the bridge interface wouldn't exist.
76 [ "$iface" = "br-$config" ] && return 0;
78 ifconfig "$iface" 2>/dev/null >/dev/null && {
79 # make sure the interface is removed from any existing bridge and brought down
80 ifconfig "$iface" down
84 # Setup VLAN interfaces
88 config_get iftype "$config" type
91 [ -x /usr/sbin/brctl ] && {
92 ifconfig "$iface" up 2>/dev/null >/dev/null
93 ifconfig "br-$config" 2>/dev/null >/dev/null && {
94 $DEBUG brctl addif "br-$config" "$iface"
95 # Bridge existed already. No further processing necesary
97 $DEBUG brctl addbr "br-$config"
98 $DEBUG brctl setfd "br-$config" 0
99 $DEBUG brctl addif "br-$config" "$iface"
100 # Creating the bridge here will have triggered a hotplug event, which will
101 # result in another setup_interface() call, so we simply stop processing
102 # the current event at this point.
117 [ -n "$config" ] || {
118 config=$(find_config "$iface")
119 [ "$?" = 0 ] || return 1
121 proto="${3:-$(config_get "$config" proto)}"
123 prepare_interface "$iface" "$config" || return 0
125 [ "$iface" = "br-$config" ] && {
126 # need to bring up the bridge and wait a second for
127 # it to switch to the 'forwarding' state, otherwise
128 # it will lose its routes...
134 config_get mtu "$config" mtu
135 config_get macaddr "$config" macaddr
136 $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
138 pidfile="/var/run/$iface.pid"
141 config_get ipaddr "$config" ipaddr
142 config_get netmask "$config" netmask
143 [ -z "$ipaddr" -o -z "$netmask" ] && return 1
145 config_get ip6addr "$config" ip6addr
146 config_get gateway "$config" gateway
147 config_get dns "$config" dns
148 config_get bcast "$config" broadcast
150 [ -z "$ipaddr" ] || $DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask"
151 [ -z "$ip6addr" ] || $DEBUG ifconfig "$iface" inet6 add "$ip6addr"
152 [ -z "$gateway" ] || $DEBUG route add default gw "$gateway"
153 [ -z "$bcast" ] || $DEBUG ifconfig "$iface" broadcast "$bcast"
154 [ -z "$dns" -o -f /tmp/resolv.conf.auto ] || {
156 echo "nameserver $ns" >> /tmp/resolv.conf.auto
160 env -i ACTION="ifup" INTERFACE="$config" DEVICE="$iface" PROTO=static /sbin/hotplug "iface" &
163 # prevent udhcpc from starting more than once
164 lock "/var/lock/dhcp-$iface"
165 pid="$(cat "$pidfile" 2>/dev/null)"
166 [ -d "/proc/$pid" ] && grep udhcpc "/proc/${pid}/cmdline" >/dev/null 2>/dev/null && {
167 lock -u "/var/lock/dhcp-$iface"
171 config_get ipaddr "$config" ipaddr
172 config_get netmask "$config" netmask
173 config_get hostname "$config" hostname
174 config_get proto1 "$config" proto
176 [ -z "$ipaddr" ] || \
177 $DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
179 # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
180 [ "$proto1" != "$proto" ] && dhcpopts="-n -q"
181 $DEBUG eval udhcpc -t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} -b -p "$pidfile" ${dhcpopts:- -R &}
182 lock -u "/var/lock/dhcp-$iface"
185 if ( eval "type setup_interface_$proto" ) >/dev/null 2>/dev/null; then
186 eval "setup_interface_$proto '$iface' '$config' '$proto'"
188 echo "Interface type $proto not supported."
199 brctl show | grep "$dev" >/dev/null && {
200 # interface is still part of a bridge, correct that
202 for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
203 brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null