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" = .
"$1" ] && {
27 local cfgfile
="${1:-network}"
32 config_set
"$2" auto
1
35 local iftype ifname device proto
36 config_get iftype
"$CONFIG_SECTION" TYPE
39 append interfaces
"$CONFIG_SECTION"
40 config_get proto
"$CONFIG_SECTION" proto
41 config_get iftype
"$CONFIG_SECTION" type
42 config_get ifname
"$CONFIG_SECTION" ifname
43 config_get device
"$CONFIG_SECTION" device
"$ifname"
44 config_set
"$CONFIG_SECTION" device
"$device"
47 config_set
"$CONFIG_SECTION" ifnames
"$device"
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}"
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 # add dns entries if they are not in resolv.conf yet
75 # We may be called by pppd's ip-up which has a nonstandard umask set.
76 # Create an empty file here and force its permission to 0644, otherwise
77 # dnsmasq will not be able to re-read the resolv.conf.auto .
78 [ ! -f /tmp
/resolv.conf.auto
] && {
79 touch /tmp
/resolv.conf.auto
80 chmod 0644 /tmp
/resolv.conf.auto
86 grep -qsF "nameserver $dns" /tmp
/resolv.conf.auto ||
{
87 add
="${add:+$add }$dns"
88 echo "nameserver $dns" >> /tmp
/resolv.conf.auto
93 uci_set_state network
"$cfg" dns
"$add"
94 uci_set_state network
"$cfg" resolv_dns
"$add"
98 # remove dns entries of the given iface
103 [ -f /tmp
/resolv.conf.auto
] && {
104 local dns
=$
(uci_get_state network
"$cfg" resolv_dns
)
106 sed -i -e "/^nameserver $dns$/d" /tmp
/resolv.conf.auto
110 uci_revert_state network
"$cfg" dns
111 uci_revert_state network
"$cfg" resolv_dns
115 # sort the device list, drop duplicates
125 # Create the interface, if necessary.
126 # Return status 0 indicates that the setup_interface() call should continue
127 # Return status 1 means that everything is set up already.
129 prepare_interface
() {
134 # if we're called for the bridge interface itself, don't bother trying
135 # to create any interfaces here. The scripts have already done that, otherwise
136 # the bridge interface wouldn't exist.
137 [ "br-$config" = "$iface" -o -e "$iface" ] && return 0;
139 ifconfig
"$iface" 2>/dev
/null
>/dev
/null
&& {
141 config_get proto
"$config" proto
143 # make sure the interface is removed from any existing bridge and deconfigured,
144 # (deconfigured only if the interface is not set to proto=none)
146 [ "$proto" = none
] || ifconfig
"$iface" 0.0.0.0
148 # Change interface MAC address if requested
149 [ -n "$vifmac" ] && {
150 ifconfig
"$iface" down
151 ifconfig
"$iface" hw ether
"$vifmac" up
155 # Setup VLAN interfaces
156 add_vlan
"$iface" && return 1
157 ifconfig
"$iface" 2>/dev
/null
>/dev
/null ||
return 0
161 config_get iftype
"$config" type
165 config_get macaddr
"$config" macaddr
166 [ -x /usr
/sbin
/brctl
] && {
167 # Remove IPv6 link local addr before adding the iface to the bridge
168 local llv6
="$(ifconfig "$iface")"
171 llv6
="${llv6#* fe80:}"
172 ifconfig
"$iface" del
"fe80:${llv6%% *}"
176 ifconfig
"br-$config" 2>/dev
/null
>/dev
/null
&& {
177 local newdevs devices
178 config_get devices
"$config" device
179 for dev
in $
(sort_list
"$devices" "$iface"); do
180 append newdevs
"$dev"
182 uci_set_state network
"$config" device
"$newdevs"
183 $DEBUG ifconfig
"$iface" 0.0.0.0
184 $DEBUG brctl addif
"br-$config" "$iface"
185 # Bridge existed already. No further processing necesary
188 config_get_bool stp
"$config" stp
0
189 $DEBUG brctl addbr
"br-$config"
190 $DEBUG brctl setfd
"br-$config" 0
191 $DEBUG ifconfig
"br-$config" up
192 $DEBUG ifconfig
"$iface" 0.0.0.0
193 $DEBUG brctl addif
"br-$config" "$iface"
194 $DEBUG brctl stp
"br-$config" $stp
195 # Creating the bridge here will have triggered a hotplug event, which will
196 # result in another setup_interface() call, so we simply stop processing
197 # the current event at this point.
199 ifconfig
"$iface" ${macaddr:+hw ether "${macaddr}"} up
2>/dev
/null
>/dev
/null
207 set_interface_ifname
() {
212 config_get device
"$1" device
213 uci_set_state network
"$config" ifname
"$ifname"
214 uci_set_state network
"$config" device
"$device"
217 setup_interface_none
() {
218 env
-i ACTION
="ifup" INTERFACE
="$2" DEVICE
="$1" PROTO
=none
/sbin
/hotplug-call
"iface" &
221 setup_interface_static
() {
225 local ipaddr netmask ip6addr
226 config_get ipaddr
"$config" ipaddr
227 config_get netmask
"$config" netmask
228 config_get ip6addr
"$config" ip6addr
229 [ -z "$ipaddr" -o -z "$netmask" ] && [ -z "$ip6addr" ] && return 1
231 local gateway ip6gw dns bcast
232 config_get gateway
"$config" gateway
233 config_get ip6gw
"$config" ip6gw
234 config_get dns
"$config" dns
235 config_get bcast
"$config" broadcast
237 [ -z "$ipaddr" ] ||
$DEBUG ifconfig
"$iface" "$ipaddr" netmask
"$netmask" broadcast
"${bcast:-+}"
238 [ -z "$ip6addr" ] ||
$DEBUG ifconfig
"$iface" add
"$ip6addr"
239 [ -z "$gateway" ] ||
$DEBUG route add default gw
"$gateway" dev
"$iface"
240 [ -z "$ip6gw" ] ||
$DEBUG route
-A inet6 add default gw
"$ip6gw" dev
"$iface"
241 [ -z "$dns" ] || add_dns
"$config" $dns
243 config_get
type "$config" TYPE
244 [ "$type" = "alias" ] && return 0
246 env
-i ACTION
="ifup" INTERFACE
="$config" DEVICE
="$iface" PROTO
=static
/sbin
/hotplug-call
"iface" &
249 setup_interface_alias
() {
255 config_get cfg
"$config" interface
256 [ "$parent" == "$cfg" ] ||
return 0
258 # parent device and ifname
259 local p_device p_type
260 config_get p_device
"$cfg" device
261 config_get p_type
"$cfg" type
263 # select alias ifname
264 local layer use_iface
265 config_get layer
"$config" layer
2
266 case "$layer:$p_type" in
267 # layer 3: e.g. pppoe-wan or pptp-vpn
268 3:*) use_iface
="$iface" ;;
270 # layer 2 and parent is bridge: e.g. br-wan
271 2:bridge
) use_iface
="br-$cfg" ;;
273 # layer 1: e.g. eth0 or ath0
274 *) use_iface
="$p_device" ;;
279 config_get ctr
"$parent" alias_count
0
281 config_set
"$parent" alias_count
"$ctr"
285 config_get list
"$parent" aliases
286 append list
"$config"
287 config_set
"$parent" aliases
"$list"
289 use_iface
="$use_iface:$ctr"
290 set_interface_ifname
"$config" "$use_iface"
293 config_get proto
"$config" proto
"static"
296 setup_interface_static
"$use_iface" "$config"
299 echo "Unsupported type '$proto' for alias config '$config'"
311 [ -n "$config" ] ||
{
312 config
=$
(find_config
"$iface")
313 [ "$?" = 0 ] ||
return 1
316 prepare_interface
"$iface" "$config" "$vifmac" ||
return 0
318 [ "$iface" = "br-$config" ] && {
319 # need to bring up the bridge and wait a second for
320 # it to switch to the 'forwarding' state, otherwise
321 # it will lose its routes...
327 grep "$iface:" /proc
/net
/dev
> /dev
/null
&& {
329 config_get mtu
"$config" mtu
330 config_get macaddr
"$config" macaddr
331 [ -n "$macaddr" ] && $DEBUG ifconfig
"$iface" down
332 $DEBUG ifconfig
"$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
334 set_interface_ifname
"$config" "$iface"
336 [ -n "$proto" ] || config_get proto
"$config" proto
339 setup_interface_static
"$iface" "$config"
342 local lockfile
="/var/lock/dhcp-$iface"
345 # prevent udhcpc from starting more than once
346 local pidfile
="/var/run/dhcp-${iface}.pid"
347 local pid
="$(cat "$pidfile" 2>/dev/null)"
348 if [ -d "/proc/$pid" ] && grep -qs udhcpc
"/proc/${pid}/cmdline"; then
351 local ipaddr netmask hostname proto1 clientid
352 config_get ipaddr
"$config" ipaddr
353 config_get netmask
"$config" netmask
354 config_get hostname
"$config" hostname
355 config_get proto1
"$config" proto
356 config_get clientid
"$config" clientid
358 [ -z "$ipaddr" ] || \
359 $DEBUG ifconfig
"$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
361 # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
363 [ .
"$proto1" != .
"$proto" ] && dhcpopts
="-n -q"
364 $DEBUG eval udhcpc
-t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -O rootpath -R &}
369 setup_interface_none
"$iface" "$config"
372 if ( eval "type setup_interface_$proto" ) >/dev
/null
2>/dev
/null
; then
373 eval "setup_interface_$proto '$iface' '$config' '$proto'"
375 echo "Interface type $proto not supported."
382 stop_interface_dhcp
() {
386 config_get ifname
"$config" ifname
388 local lock
="/var/lock/dhcp-${ifname}"
389 [ -f "$lock" ] && lock
-u "$lock"
393 local pidfile
="/var/run/dhcp-${ifname}.pid"
394 local pid
="$(cat "$pidfile" 2>/dev/null)"
395 [ -d "/proc/$pid" ] && {
396 grep -qs udhcpc
"/proc/$pid/cmdline" && kill -TERM $pid && \
397 while grep -qs udhcpc
"/proc/$pid/cmdline"; do sleep 1; done
401 uci
-P /var
/state revert
"network.$config"
408 [ -x /usr
/sbin
/brctl
] ||
return 0
409 brctl show
2>/dev
/null |
grep "$dev" >/dev
/null
&& {
410 # interface is still part of a bridge, correct that
412 for brdev
in $
(brctl show |
awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
413 brctl delif
"$brdev" "$dev" 2>/dev
/null
>/dev
/null