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
76 grep -qsF "nameserver $dns" /tmp
/resolv.conf.auto ||
{
77 add
="${add:+$add }$dns"
78 echo "nameserver $dns" >> /tmp
/resolv.conf.auto
82 uci_set_state network
"$cfg" dns
"$add"
85 # remove dns entries of the given iface
90 config_get dns
"$cfg" dns
92 sed -i -e "/^nameserver $dns$/d" /tmp
/resolv.conf.auto
95 uci_revert_state network
"$cfg" dns
98 # sort the device list, drop duplicates
108 # Create the interface, if necessary.
109 # Return status 0 indicates that the setup_interface() call should continue
110 # Return status 1 means that everything is set up already.
112 prepare_interface
() {
117 # if we're called for the bridge interface itself, don't bother trying
118 # to create any interfaces here. The scripts have already done that, otherwise
119 # the bridge interface wouldn't exist.
120 [ "br-$config" = "$iface" -o -e "$iface" ] && return 0;
122 ifconfig
"$iface" 2>/dev
/null
>/dev
/null
&& {
124 config_get proto
"$config" proto
126 # make sure the interface is removed from any existing bridge and deconfigured,
127 # (deconfigured only if the interface is not set to proto=none)
129 [ "$proto" = none
] || ifconfig
"$iface" 0.0.0.0
131 # Change interface MAC address if requested
132 [ -n "$vifmac" ] && {
133 ifconfig
"$iface" down
134 ifconfig
"$iface" hw ether
"$vifmac" up
138 # Setup VLAN interfaces
139 add_vlan
"$iface" && return 1
140 ifconfig
"$iface" 2>/dev
/null
>/dev
/null ||
return 0
144 config_get iftype
"$config" type
148 config_get macaddr
"$config" macaddr
149 [ -x /usr
/sbin
/brctl
] && {
150 ifconfig
"br-$config" 2>/dev
/null
>/dev
/null
&& {
151 local newdevs devices
152 config_get devices
"$config" device
153 for dev
in $
(sort_list
"$devices" "$iface"); do
154 append newdevs
"$dev"
156 uci_set_state network
"$config" device
"$newdevs"
157 $DEBUG ifconfig
"$iface" 0.0.0.0
158 $DEBUG brctl addif
"br-$config" "$iface"
159 # Bridge existed already. No further processing necesary
162 config_get_bool stp
"$config" stp
0
163 $DEBUG brctl addbr
"br-$config"
164 $DEBUG brctl setfd
"br-$config" 0
165 $DEBUG ifconfig
"br-$config" up
166 $DEBUG ifconfig
"$iface" 0.0.0.0
167 $DEBUG brctl addif
"br-$config" "$iface"
168 $DEBUG brctl stp
"br-$config" $stp
169 # Creating the bridge here will have triggered a hotplug event, which will
170 # result in another setup_interface() call, so we simply stop processing
171 # the current event at this point.
173 ifconfig
"$iface" ${macaddr:+hw ether "${macaddr}"} up
2>/dev
/null
>/dev
/null
181 set_interface_ifname
() {
186 config_get device
"$1" device
187 uci_set_state network
"$config" ifname
"$ifname"
188 uci_set_state network
"$config" device
"$device"
191 setup_interface_none
() {
192 env
-i ACTION
="ifup" INTERFACE
="$2" DEVICE
="$1" PROTO
=none
/sbin
/hotplug-call
"iface" &
195 setup_interface_static
() {
199 local ipaddr netmask ip6addr
200 config_get ipaddr
"$config" ipaddr
201 config_get netmask
"$config" netmask
202 config_get ip6addr
"$config" ip6addr
203 [ -z "$ipaddr" -o -z "$netmask" ] && [ -z "$ip6addr" ] && return 1
205 local gateway ip6gw dns bcast
206 config_get gateway
"$config" gateway
207 config_get ip6gw
"$config" ip6gw
208 config_get dns
"$config" dns
209 config_get bcast
"$config" broadcast
211 [ -z "$ipaddr" ] ||
$DEBUG ifconfig
"$iface" "$ipaddr" netmask
"$netmask" broadcast
"${bcast:-+}"
212 [ -z "$ip6addr" ] ||
$DEBUG ifconfig
"$iface" add
"$ip6addr"
213 [ -z "$gateway" ] ||
$DEBUG route add default gw
"$gateway" dev
"$iface"
214 [ -z "$ip6gw" ] ||
$DEBUG route
-A inet6 add default gw
"$ip6gw" dev
"$iface"
217 grep "$ns" /tmp
/resolv.conf.auto
2>/dev
/null
>/dev
/null ||
{
218 echo "nameserver $ns" >> /tmp
/resolv.conf.auto
223 config_get
type "$config" TYPE
224 [ "$type" = "alias" ] && return 0
226 env
-i ACTION
="ifup" INTERFACE
="$config" DEVICE
="$iface" PROTO
=static
/sbin
/hotplug-call
"iface" &
229 setup_interface_alias
() {
235 config_get cfg
"$config" interface
236 [ "$parent" == "$cfg" ] ||
return 0
240 config_get ctr
"$parent" alias_count
0
242 config_set
"$parent" alias_count
"$ctr"
246 config_get list
"$parent" aliases
247 append list
"$config"
248 config_set
"$parent" aliases
"$list"
251 set_interface_ifname
"$config" "$iface"
254 config_get proto
"$config" proto
"static"
257 setup_interface_static
"$iface" "$config"
260 echo "Unsupported type '$proto' for alias config '$config'"
267 local iface_main
="$1"
273 [ -n "$config" ] ||
{
274 config
=$
(find_config
"$iface_main")
275 [ "$?" = 0 ] ||
return 1
278 prepare_interface
"$iface_main" "$config" "$vifmac" ||
return 0
280 [ "$iface_main" = "br-$config" ] && {
281 # need to bring up the bridge and wait a second for
282 # it to switch to the 'forwarding' state, otherwise
283 # it will lose its routes...
284 ifconfig
"$iface_main" up
289 grep "$iface_main:" /proc
/net
/dev
> /dev
/null
&& {
291 config_get mtu
"$config" mtu
292 config_get macaddr
"$config" macaddr
293 [ -n "$macaddr" ] && $DEBUG ifconfig
"$iface_main" down
294 $DEBUG ifconfig
"$iface_main" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
296 set_interface_ifname
"$config" "$iface_main"
298 [ -n "$proto" ] || config_get proto
"$config" proto
301 config_get ip6addr_main
"$config" ip6addr
302 setup_interface_static
"$iface_main" "$config"
305 local lockfile
="/var/lock/dhcp-$iface_main"
308 # prevent udhcpc from starting more than once
309 local pidfile
="/var/run/dhcp-${iface_main}.pid"
310 local pid
="$(cat "$pidfile" 2>/dev/null)"
311 if [ -d "/proc/$pid" ] && grep -qs udhcpc
"/proc/${pid}/cmdline"; then
314 local ipaddr netmask hostname proto1 clientid
315 config_get ipaddr
"$config" ipaddr
316 config_get netmask
"$config" netmask
317 config_get hostname
"$config" hostname
318 config_get proto1
"$config" proto
319 config_get clientid
"$config" clientid
321 [ -z "$ipaddr" ] || \
322 $DEBUG ifconfig
"$iface_main" "$ipaddr" ${netmask:+netmask "$netmask"}
324 # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
326 [ .
"$proto1" != .
"$proto" ] && dhcpopts
="-n -q"
327 $DEBUG eval udhcpc
-t 0 -i "$iface_main" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -O rootpath -R &}
332 setup_interface_none
"$iface_main" "$config"
335 if ( eval "type setup_interface_$proto" ) >/dev
/null
2>/dev
/null
; then
336 eval "setup_interface_$proto '$iface_main' '$config' '$proto'"
338 echo "Interface type $proto not supported."
343 [ "$proto" = none
] ||
{
344 for ifn
in `ifconfig | grep "^$iface_main:" | awk '{print $1}'`; do
350 config_set
"$config" aliases
""
351 config_set
"$config" alias_count
0
352 config_foreach setup_interface_alias
alias "$config" "$iface_main"
353 config_get aliases
"$config" aliases
354 [ -z "$aliases" ] || uci_set_state network
"$config" aliases
"$aliases"
356 # put the ip6addr back to the beginning to become the main ip again
357 [ -z "$ip6addr_main" ] ||
{
358 $DEBUG ifconfig
"$iface_main" del
"$ip6addr_main"
359 $DEBUG ifconfig
"$iface_main" add
"$ip6addr_main"
363 stop_interface_dhcp
() {
367 config_get ifname
"$config" ifname
369 local lock
="/var/lock/dhcp-${ifname}"
370 [ -f "$lock" ] && lock
-u "$lock"
372 local pidfile
="/var/run/dhcp-${ifname}.pid"
373 local pid
="$(cat "$pidfile" 2>/dev/null)"
374 [ -d "/proc/$pid" ] && {
375 grep -qs udhcpc
"/proc/$pid/cmdline" && kill -TERM $pid && \
376 while grep -qs udhcpc
"/proc/$pid/cmdline"; do sleep 1; done
380 uci
-P /var
/state revert
"network.$config"
387 [ -x /usr
/sbin
/brctl
] ||
return 0
388 brctl show
2>/dev
/null |
grep "$dev" >/dev
/null
&& {
389 # interface is still part of a bridge, correct that
391 for brdev
in $
(brctl show |
awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
392 brctl delif
"$brdev" "$dev" 2>/dev
/null
>/dev
/null