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" ] && {
28 local mode iftype iface ifname device
33 config_set "$2" auto 1
36 config_get iftype "$CONFIG_SECTION" TYPE
39 config_get proto "$CONFIG_SECTION" proto
40 append interfaces "$CONFIG_SECTION"
41 config_get iftype "$CONFIG_SECTION" type
42 config_get ifname "$CONFIG_SECTION" ifname
43 config_get device "$CONFIG_SECTION" device
44 config_set "$CONFIG_SECTION" device "${device:-$ifname}"
47 config_set "$CONFIG_SECTION" ifnames "${device:-$ifname}"
48 config_set "$CONFIG_SECTION" ifname br-"$CONFIG_SECTION"
51 ( type "scan_$proto" ) >/dev/null 2>/dev/null && eval "scan_$proto '$CONFIG_SECTION'"
55 config_load "${cfgfile:-network}"
61 [ "$1" = "$vif" ] || ifconfig "$1" >/dev/null 2>/dev/null || {
62 ifconfig "$vif" up 2>/dev/null >/dev/null || add_vlan "$vif"
63 $DEBUG vconfig add "$vif" "${1##*\.}"
69 # sort the device list, drop duplicates
79 # Create the interface, if necessary.
80 # Return status 0 indicates that the setup_interface() call should continue
81 # Return status 1 means that everything is set up already.
89 # if we're called for the bridge interface itself, don't bother trying
90 # to create any interfaces here. The scripts have already done that, otherwise
91 # the bridge interface wouldn't exist.
92 [ "br-$config" = "$iface" -o -e "$iface" ] && return 0;
94 ifconfig "$iface" 2>/dev/null >/dev/null && {
95 config_get proto "$config" proto
97 # make sure the interface is removed from any existing bridge and deconfigured,
98 # (deconfigured only if the interface is not set to proto=none)
100 [ "$proto" = none ] || ifconfig "$iface" 0.0.0.0
102 # Change interface MAC address if requested
103 [ -n "$vifmac" ] && {
104 ifconfig "$iface" down
105 ifconfig "$iface" hw ether "$vifmac" up
109 # Setup VLAN interfaces
110 add_vlan "$iface" && return 1
111 ifconfig "$iface" 2>/dev/null >/dev/null || return 0
114 config_get iftype "$config" type
115 config_get stp "$config" stp
118 [ -x /usr/sbin/brctl ] && {
119 ifconfig "br-$config" 2>/dev/null >/dev/null && {
122 config_get devices "$config" device
123 for dev in $(sort_list "$devices" "$iface"); do
124 append newdevs "$dev"
126 uci_set_state network "$config" device "$newdevs"
127 $DEBUG brctl addif "br-$config" "$iface"
128 # Bridge existed already. No further processing necesary
130 $DEBUG brctl addbr "br-$config"
131 $DEBUG brctl setfd "br-$config" 0
132 $DEBUG ifconfig "br-$config" up
133 $DEBUG brctl addif "br-$config" "$iface"
134 $DEBUG brctl stp "br-$config" ${stp:-0}
135 # Creating the bridge here will have triggered a hotplug event, which will
136 # result in another setup_interface() call, so we simply stop processing
137 # the current event at this point.
139 ifconfig "$iface" up 2>/dev/null >/dev/null
147 set_interface_ifname() {
151 config_get device "$1" device
152 uci_set_state network "$config" ifname "$ifname"
153 uci_set_state network "$config" device "$device"
156 setup_interface_none() {
157 env -i ACTION="ifup" INTERFACE="$2" DEVICE="$1" PROTO=none /sbin/hotplug-call "iface" &
160 setup_interface_static() {
164 config_get ipaddr "$config" ipaddr
165 config_get netmask "$config" netmask
166 config_get ip6addr "$config" ip6addr
167 [ -z "$ipaddr" -o -z "$netmask" ] && [ -z "$ip6addr" ] && return 1
169 config_get gateway "$config" gateway
170 config_get ip6gw "$config" ip6gw
171 config_get dns "$config" dns
172 config_get bcast "$config" broadcast
174 [ -z "$ipaddr" ] || $DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask" broadcast "${bcast:-+}"
175 [ -z "$ip6addr" ] || $DEBUG ifconfig "$iface" add "$ip6addr"
176 [ -z "$gateway" ] || $DEBUG route add default gw "$gateway" dev "$iface"
177 [ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw" dev "$iface"
180 grep "$ns" /tmp/resolv.conf.auto 2>/dev/null >/dev/null || {
181 echo "nameserver $ns" >> /tmp/resolv.conf.auto
186 config_get type "$config" TYPE
187 [ "$type" = "alias" ] && return 0
189 env -i ACTION="ifup" INTERFACE="$config" DEVICE="$iface" PROTO=static /sbin/hotplug-call "iface" &
192 setup_interface_alias() {
197 config_get cfg "$config" interface
198 [ "$parent" == "$cfg" ] || return 0
201 config_get ctr "$parent" alias_count
203 config_set "$parent" alias_count "$ctr"
206 config_get list "$parent" aliases
207 append list "$config"
208 config_set "$parent" aliases "$list"
210 set_interface_ifname "$config" "$iface:$ctr"
211 config_get proto "$config" proto
212 case "${proto:-static}" in
214 setup_interface_static "$iface:$ctr" "$config"
217 echo "Unsupported type '$proto' for alias config '$config'"
230 [ -n "$config" ] || {
231 config=$(find_config "$iface")
232 [ "$?" = 0 ] || return 1
234 proto="${3:-$(config_get "$config" proto)}"
236 prepare_interface "$iface" "$config" "$vifmac" || return 0
238 [ "$iface" = "br-$config" ] && {
239 # need to bring up the bridge and wait a second for
240 # it to switch to the 'forwarding' state, otherwise
241 # it will lose its routes...
247 config_get mtu "$config" mtu
248 config_get macaddr "$config" macaddr
249 grep "$iface:" /proc/net/dev > /dev/null && {
250 [ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
251 $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
253 set_interface_ifname "$config" "$iface"
255 pidfile="/var/run/$iface.pid"
258 setup_interface_static "$iface" "$config"
261 # prevent udhcpc from starting more than once
262 lock "/var/lock/dhcp-$iface"
263 pid="$(cat "$pidfile" 2>/dev/null)"
264 if [ -d "/proc/$pid" ] && grep udhcpc "/proc/${pid}/cmdline" >/dev/null 2>/dev/null; then
265 lock -u "/var/lock/dhcp-$iface"
268 config_get ipaddr "$config" ipaddr
269 config_get netmask "$config" netmask
270 config_get hostname "$config" hostname
271 config_get proto1 "$config" proto
272 config_get clientid "$config" clientid
274 [ -z "$ipaddr" ] || \
275 $DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
277 # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
278 [ ."$proto1" != ."$proto" ] && dhcpopts="-n -q"
279 $DEBUG eval udhcpc -t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -R &}
280 lock -u "/var/lock/dhcp-$iface"
284 setup_interface_none "$iface" "$config"
287 if ( eval "type setup_interface_$proto" ) >/dev/null 2>/dev/null; then
288 eval "setup_interface_$proto '$iface' '$config' '$proto'"
290 echo "Interface type $proto not supported."
295 [ "$proto" = none ] || {
296 for ifn in `ifconfig | grep "^$iface:" | awk '{print $1}'`; do
300 config_set "$config" aliases ""
301 config_set "$config" alias_count 0
302 config_foreach setup_interface_alias alias "$config" "$iface"
303 config_get aliases "$config" aliases
304 [ -z "$aliases" ] || uci_set_state network "$config" aliases "$aliases"
311 [ -x /usr/sbin/brctl ] || return 0
312 brctl show | grep "$dev" >/dev/null && {
313 # interface is still part of a bridge, correct that
315 for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
316 brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null