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_set "$CONFIG_SECTION" device "$ifname"
46 config_set "$CONFIG_SECTION" ifnames "$ifname"
47 config_set "$CONFIG_SECTION" ifname br-"$CONFIG_SECTION"
50 ( type "scan_$proto" ) >/dev/null 2>/dev/null && eval "scan_$proto '$CONFIG_SECTION'"
54 config_load "${cfgfile:-network}"
60 [ "$1" = "$vif" ] || ifconfig "$1" >/dev/null 2>/dev/null || {
61 ifconfig "$vif" up 2>/dev/null >/dev/null || add_vlan "$vif"
62 $DEBUG vconfig add "$vif" "${1##*\.}"
66 # Create the interface, if necessary.
67 # Return status 0 indicates that the setup_interface() call should continue
68 # Return status 1 means that everything is set up already.
74 # if we're called for the bridge interface itself, don't bother trying
75 # to create any interfaces here. The scripts have already done that, otherwise
76 # the bridge interface wouldn't exist.
77 [ "$iface" = "br-$config" ] && return 0;
79 ifconfig "$iface" 2>/dev/null >/dev/null && {
80 # make sure the interface is removed from any existing bridge and brought down
81 ifconfig "$iface" down
85 # Setup VLAN interfaces
89 config_get iftype "$config" type
92 [ -x /usr/sbin/brctl ] && {
93 ifconfig "$iface" up 2>/dev/null >/dev/null
94 ifconfig "br-$config" 2>/dev/null >/dev/null && {
95 $DEBUG brctl addif "br-$config" "$iface"
96 # Bridge existed already. No further processing necesary
98 $DEBUG brctl addbr "br-$config"
99 $DEBUG brctl setfd "br-$config" 0
100 $DEBUG brctl addif "br-$config" "$iface"
101 # Creating the bridge here will have triggered a hotplug event, which will
102 # result in another setup_interface() call, so we simply stop processing
103 # the current event at this point.
118 [ -n "$config" ] || {
119 config=$(find_config "$iface")
120 [ "$?" = 0 ] || return 1
122 proto="${3:-$(config_get "$config" proto)}"
124 prepare_interface "$iface" "$config" || return 0
126 [ "$iface" = "br-$config" ] && {
127 # need to bring up the bridge and wait a second for
128 # it to switch to the 'forwarding' state, otherwise
129 # it will lose its routes...
135 config_get mtu "$config" mtu
136 config_get macaddr "$config" macaddr
137 $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
139 pidfile="/var/run/$iface.pid"
142 config_get ipaddr "$config" ipaddr
143 config_get netmask "$config" netmask
144 [ -z "$ipaddr" -o -z "$netmask" ] && return 1
146 config_get ip6addr "$config" ip6addr
147 config_get gateway "$config" gateway
148 config_get dns "$config" dns
149 config_get bcast "$config" broadcast
151 [ -z "$ipaddr" ] || $DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask"
152 [ -z "$ip6addr" ] || $DEBUG ifconfig "$iface" inet6 add "$ip6addr"
153 [ -z "$gateway" ] || $DEBUG route add default gw "$gateway"
154 [ -z "$bcast" ] || $DEBUG ifconfig "$iface" broadcast "$bcast"
155 [ -z "$dns" -o -f /tmp/resolv.conf.auto ] || {
157 echo "nameserver $ns" >> /tmp/resolv.conf.auto
161 env -i ACTION="ifup" INTERFACE="$config" DEVICE="$iface" PROTO=static /sbin/hotplug-call "iface" &
164 # prevent udhcpc from starting more than once
165 lock "/var/lock/dhcp-$iface"
166 pid="$(cat "$pidfile" 2>/dev/null)"
167 [ -d "/proc/$pid" ] && grep udhcpc "/proc/${pid}/cmdline" >/dev/null 2>/dev/null && {
168 lock -u "/var/lock/dhcp-$iface"
172 config_get ipaddr "$config" ipaddr
173 config_get netmask "$config" netmask
174 config_get hostname "$config" hostname
175 config_get proto1 "$config" proto
177 [ -z "$ipaddr" ] || \
178 $DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
180 # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
181 [ "$proto1" != "$proto" ] && dhcpopts="-n -q"
182 $DEBUG eval udhcpc -t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} -b -p "$pidfile" ${dhcpopts:- -R &}
183 lock -u "/var/lock/dhcp-$iface"
186 if ( eval "type setup_interface_$proto" ) >/dev/null 2>/dev/null; then
187 eval "setup_interface_$proto '$iface' '$config' '$proto'"
189 echo "Interface type $proto not supported."
200 [ -x /usr/sbin/brctl ] || return 0
201 brctl show | grep "$dev" >/dev/null && {
202 # interface is still part of a bridge, correct that
204 for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
205 brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null