return 1
}
+# add dns entries if they are not in resolv.conf yet
+add_dns() {
+ local cfg="$1"; shift
+
+ remove_dns "$cfg"
+
+ # We may be called by pppd's ip-up which has a nonstandard umask set.
+ # Create an empty file here and force its permission to 0644, otherwise
+ # dnsmasq will not be able to re-read the resolv.conf.auto .
+ [ ! -f /tmp/resolv.conf.auto ] && {
+ touch /tmp/resolv.conf.auto
+ chmod 0644 /tmp/resolv.conf.auto
+ }
+
+ local dns
+ local add
+ for dns in "$@"; do
+ grep -qsF "nameserver $dns" /tmp/resolv.conf.auto || {
+ add="${add:+$add }$dns"
+ echo "nameserver $dns" >> /tmp/resolv.conf.auto
+ }
+ done
+
+ [ -n "$cfg" ] && {
+ uci_set_state network "$cfg" dns "$add"
+ uci_set_state network "$cfg" resolv_dns "$add"
+ }
+}
+
+# remove dns entries of the given iface
+remove_dns() {
+ local cfg="$1"
+
+ [ -n "$cfg" ] && {
+ [ -f /tmp/resolv.conf.auto ] && {
+ local dns=$(uci_get_state network "$cfg" resolv_dns)
+ for dns in $dns; do
+ sed -i -e "/^nameserver $dns$/d" /tmp/resolv.conf.auto
+ done
+ }
+
+ uci_revert_state network "$cfg" dns
+ uci_revert_state network "$cfg" resolv_dns
+ }
+}
+
# sort the device list, drop duplicates
sort_list() {
local arg="$*"
config_get iftype "$config" type
case "$iftype" in
bridge)
+ local macaddr
+ config_get macaddr "$config" macaddr
[ -x /usr/sbin/brctl ] && {
ifconfig "br-$config" 2>/dev/null >/dev/null && {
local newdevs devices
append newdevs "$dev"
done
uci_set_state network "$config" device "$newdevs"
+ $DEBUG ifconfig "$iface" 0.0.0.0
$DEBUG brctl addif "br-$config" "$iface"
# Bridge existed already. No further processing necesary
} || {
$DEBUG brctl addbr "br-$config"
$DEBUG brctl setfd "br-$config" 0
$DEBUG ifconfig "br-$config" up
+ $DEBUG ifconfig "$iface" 0.0.0.0
$DEBUG brctl addif "br-$config" "$iface"
$DEBUG brctl stp "br-$config" $stp
# Creating the bridge here will have triggered a hotplug event, which will
# result in another setup_interface() call, so we simply stop processing
# the current event at this point.
}
- ifconfig "$iface" up 2>/dev/null >/dev/null
+ ifconfig "$iface" ${macaddr:+hw ether "${macaddr}"} up 2>/dev/null >/dev/null
return 1
}
;;
[ -z "$ip6addr" ] || $DEBUG ifconfig "$iface" add "$ip6addr"
[ -z "$gateway" ] || $DEBUG route add default gw "$gateway" dev "$iface"
[ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw" dev "$iface"
- [ -z "$dns" ] || {
- for ns in $dns; do
- grep "$ns" /tmp/resolv.conf.auto 2>/dev/null >/dev/null || {
- echo "nameserver $ns" >> /tmp/resolv.conf.auto
- }
- done
- }
+ [ -z "$dns" ] || add_dns "$config" $dns
config_get type "$config" TYPE
[ "$type" = "alias" ] && return 0
config_get cfg "$config" interface
[ "$parent" == "$cfg" ] || return 0
+ # parent device and ifname
+ local p_device p_type
+ config_get p_device "$cfg" device
+ config_get p_type "$cfg" type
+
+ # select alias ifname
+ local layer use_iface
+ config_get layer "$config" layer 2
+ case "$layer:$p_type" in
+ # layer 3: e.g. pppoe-wan or pptp-vpn
+ 3:*) use_iface="$iface" ;;
+
+ # layer 2 and parent is bridge: e.g. br-wan
+ 2:bridge) use_iface="br-$cfg" ;;
+
+ # layer 1: e.g. eth0 or ath0
+ *) use_iface="$p_device" ;;
+ esac
+
# alias counter
local ctr
config_get ctr "$parent" alias_count 0
append list "$config"
config_set "$parent" aliases "$list"
- iface="$iface:$ctr"
- set_interface_ifname "$config" "$iface"
+ use_iface="$use_iface:$ctr"
+ set_interface_ifname "$config" "$use_iface"
local proto
config_get proto "$config" proto "static"
case "${proto}" in
static)
- setup_interface_static "$iface" "$config"
+ setup_interface_static "$use_iface" "$config"
;;
*)
echo "Unsupported type '$proto' for alias config '$config'"
}
set_interface_ifname "$config" "$iface"
- pidfile="/var/run/$iface.pid"
[ -n "$proto" ] || config_get proto "$config" proto
case "$proto" in
static)
setup_interface_static "$iface" "$config"
;;
dhcp)
+ local lockfile="/var/lock/dhcp-$iface"
+ lock "$lockfile"
+
# prevent udhcpc from starting more than once
- lock "/var/lock/dhcp-$iface"
+ local pidfile="/var/run/dhcp-${iface}.pid"
local pid="$(cat "$pidfile" 2>/dev/null)"
- if [ -d "/proc/$pid" ] && grep udhcpc "/proc/${pid}/cmdline" >/dev/null 2>/dev/null; then
- lock -u "/var/lock/dhcp-$iface"
+ if [ -d "/proc/$pid" ] && grep -qs udhcpc "/proc/${pid}/cmdline"; then
+ lock -u "$lockfile"
else
local ipaddr netmask hostname proto1 clientid
config_get ipaddr "$config" ipaddr
# don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
local dhcpopts
[ ."$proto1" != ."$proto" ] && dhcpopts="-n -q"
- $DEBUG eval udhcpc -t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -R &}
- lock -u "/var/lock/dhcp-$iface"
+ $DEBUG eval udhcpc -t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -O rootpath -R &}
+ lock -u "$lockfile"
fi
;;
none)
fi
;;
esac
- [ "$proto" = none ] || {
- for ifn in `ifconfig | grep "^$iface:" | awk '{print $1}'`; do
- ifconfig "$ifn" down
- done
+}
+
+stop_interface_dhcp() {
+ local config="$1"
+
+ local ifname
+ config_get ifname "$config" ifname
+
+ local lock="/var/lock/dhcp-${ifname}"
+ [ -f "$lock" ] && lock -u "$lock"
+
+ remove_dns "$config"
+
+ local pidfile="/var/run/dhcp-${ifname}.pid"
+ local pid="$(cat "$pidfile" 2>/dev/null)"
+ [ -d "/proc/$pid" ] && {
+ grep -qs udhcpc "/proc/$pid/cmdline" && kill -TERM $pid && \
+ while grep -qs udhcpc "/proc/$pid/cmdline"; do sleep 1; done
+ rm -f "$pidfile"
}
- local aliases
- config_set "$config" aliases ""
- config_set "$config" alias_count 0
- config_foreach setup_interface_alias alias "$config" "$iface"
- config_get aliases "$config" aliases
- [ -z "$aliases" ] || uci_set_state network "$config" aliases "$aliases"
+ uci -P /var/state revert "network.$config"
}
unbridge() {
local brdev
[ -x /usr/sbin/brctl ] || return 0
- brctl show | grep "$dev" >/dev/null && {
+ brctl show 2>/dev/null | grep "$dev" >/dev/null && {
# interface is still part of a bridge, correct that
for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
projects / openwrt.git / blobdiff