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 "$@"; do
}
done
- uci_set_state network "$cfg" dns "$add"
+ [ -n "$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="$1"
- local dns
- config_get dns "$cfg" dns
- for dns in $dns; do
- sed -i -e "/^nameserver $dns$/d" /tmp/resolv.conf.auto
- done
+ [ -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" dns
+ uci_revert_state network "$cfg" resolv_dns
+ }
}
# sort the device list, drop duplicates
config_get iftype "$config" type
case "$iftype" in
bridge)
+ local macaddr
+ config_get macaddr "$config" macaddr
[ -x /usr/sbin/brctl ] && {
+ # Remove IPv6 link local addr before adding the iface to the bridge
+ local llv6="$(ifconfig "$iface")"
+ case "$llv6" in
+ *fe80:*/64*)
+ llv6="${llv6#* fe80:}"
+ ifconfig "$iface" del "fe80:${llv6%% *}"
+ ;;
+ esac
+
ifconfig "br-$config" 2>/dev/null >/dev/null && {
local newdevs devices
config_get devices "$config" device
# 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'"
}
setup_interface() {
- local iface_main="$1"
+ local iface="$1"
local config="$2"
local proto="$3"
local vifmac="$4"
- local ip6addr_main=
[ -n "$config" ] || {
- config=$(find_config "$iface_main")
+ config=$(find_config "$iface")
[ "$?" = 0 ] || return 1
}
- prepare_interface "$iface_main" "$config" "$vifmac" || return 0
+ prepare_interface "$iface" "$config" "$vifmac" || return 0
- [ "$iface_main" = "br-$config" ] && {
+ [ "$iface" = "br-$config" ] && {
# need to bring up the bridge and wait a second for
# it to switch to the 'forwarding' state, otherwise
# it will lose its routes...
- ifconfig "$iface_main" up
+ ifconfig "$iface" up
sleep 1
}
# Interface settings
- grep "$iface_main:" /proc/net/dev > /dev/null && {
+ grep "$iface:" /proc/net/dev > /dev/null && {
local mtu macaddr
config_get mtu "$config" mtu
config_get macaddr "$config" macaddr
- [ -n "$macaddr" ] && $DEBUG ifconfig "$iface_main" down
- $DEBUG ifconfig "$iface_main" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
+ [ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
+ $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
}
- set_interface_ifname "$config" "$iface_main"
+ set_interface_ifname "$config" "$iface"
[ -n "$proto" ] || config_get proto "$config" proto
case "$proto" in
static)
- config_get ip6addr_main "$config" ip6addr
- setup_interface_static "$iface_main" "$config"
+ setup_interface_static "$iface" "$config"
;;
dhcp)
- local lockfile="/var/lock/dhcp-$iface_main"
+ local lockfile="/var/lock/dhcp-$iface"
lock "$lockfile"
# prevent udhcpc from starting more than once
- local pidfile="/var/run/dhcp-${iface_main}.pid"
+ local pidfile="/var/run/dhcp-${iface}.pid"
local pid="$(cat "$pidfile" 2>/dev/null)"
if [ -d "/proc/$pid" ] && grep -qs udhcpc "/proc/${pid}/cmdline"; then
lock -u "$lockfile"
config_get clientid "$config" clientid
[ -z "$ipaddr" ] || \
- $DEBUG ifconfig "$iface_main" "$ipaddr" ${netmask:+netmask "$netmask"}
+ $DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
# 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_main" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -O rootpath -R &}
+ $DEBUG eval udhcpc -t 0 -i "$iface" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -O rootpath -R &}
lock -u "$lockfile"
fi
;;
none)
- setup_interface_none "$iface_main" "$config"
+ setup_interface_none "$iface" "$config"
;;
*)
if ( eval "type setup_interface_$proto" ) >/dev/null 2>/dev/null; then
- eval "setup_interface_$proto '$iface_main' '$config' '$proto'"
+ eval "setup_interface_$proto '$iface' '$config' '$proto'"
else
echo "Interface type $proto not supported."
return 1
fi
;;
esac
- [ "$proto" = none ] || {
- for ifn in `ifconfig | grep "^$iface_main:" | awk '{print $1}'`; do
- ifconfig "$ifn" down
- done
- }
-
- local aliases
- config_set "$config" aliases ""
- config_set "$config" alias_count 0
- config_foreach setup_interface_alias alias "$config" "$iface_main"
- config_get aliases "$config" aliases
- [ -z "$aliases" ] || uci_set_state network "$config" aliases "$aliases"
-
- # put the ip6addr back to the beginning to become the main ip again
- [ -z "$ip6addr_main" ] || {
- $DEBUG ifconfig "$iface_main" del "$ip6addr_main"
- $DEBUG ifconfig "$iface_main" add "$ip6addr_main"
- }
}
stop_interface_dhcp() {
local config="$1"
- local iface
+ local ifname
config_get ifname "$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" ] && {
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