# DEBUG="echo"
+do_sysctl() {
+ [ -n "$2" ] && \
+ sysctl -n -e -w "$1=$2" >/dev/null || \
+ sysctl -n -e "$1"
+}
+
find_config() {
local iftype device iface ifaces ifn
for ifn in $interfaces; do
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 "$cfg" resolv_dns
+ }
}
# sort the device list, drop duplicates
local macaddr
config_get macaddr "$config" macaddr
[ -x /usr/sbin/brctl ] && {
+ # Disable IPv6 for bridge ports
+ do_sysctl net.ipv6.conf.$iface.disable_ipv6 1
+ [ "${iface##wlan}" != "$iface" ] && \
+ do_sysctl net.ipv6.conf.mon.$iface.disable_ipv6 1
+
ifconfig "br-$config" 2>/dev/null >/dev/null && {
local newdevs devices
config_get devices "$config" device
config_get ip6addr "$config" ip6addr
[ -z "$ipaddr" -o -z "$netmask" ] && [ -z "$ip6addr" ] && return 1
- local gateway ip6gw dns bcast
+ local gateway ip6gw dns bcast metric
config_get gateway "$config" gateway
config_get ip6gw "$config" ip6gw
config_get dns "$config" dns
config_get bcast "$config" broadcast
+ config_get metric "$config" metric
[ -z "$ipaddr" ] || $DEBUG ifconfig "$iface" "$ipaddr" netmask "$netmask" broadcast "${bcast:-+}"
[ -z "$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 $ns" >> /tmp/resolv.conf.auto
- }
- done
- }
+ [ -z "$gateway" ] || $DEBUG route add default gw "$gateway" ${metric:+metric $metric} dev "$iface"
+ [ -z "$ip6gw" ] || $DEBUG route -A inet6 add default gw "$ip6gw" ${metric:+metric $metric} dev "$iface"
+ [ -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 && {
- local mtu macaddr
+ grep "$iface:" /proc/net/dev > /dev/null && {
+ local mtu macaddr txqueuelen
config_get mtu "$config" mtu
config_get macaddr "$config" macaddr
- [ -n "$macaddr" ] && $DEBUG ifconfig "$iface_main" down
- $DEBUG ifconfig "$iface_main" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
+ config_get txqueuelen "$config" txqueuelen
+ [ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
+ $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} ${txqueuelen:+txqueuelen $txqueuelen} up
}
- set_interface_ifname "$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"
- lock "$lockfile"
-
- # prevent udhcpc from starting more than once
- local pidfile="/var/run/dhcp-${iface_main}.pid"
- local pid="$(cat "$pidfile" 2>/dev/null)"
- 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
- config_get netmask "$config" netmask
- config_get hostname "$config" hostname
- config_get proto1 "$config" proto
- config_get clientid "$config" clientid
-
- [ -z "$ipaddr" ] || \
- $DEBUG ifconfig "$iface_main" "$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" ${dhcpopts:- -O rootpath -R &}
- lock -u "$lockfile"
- fi
+ # kill running udhcpc instance
+ local pidfile="/var/run/dhcp-${iface}.pid"
+ service_kill udhcpc "$pidfile"
+
+ local ipaddr netmask hostname proto1 clientid vendorid broadcast
+ config_get ipaddr "$config" ipaddr
+ config_get netmask "$config" netmask
+ config_get hostname "$config" hostname
+ config_get proto1 "$config" proto
+ config_get clientid "$config" clientid
+ config_get vendorid "$config" vendorid
+ config_get_bool broadcast "$config" broadcast 0
+
+ [ -z "$ipaddr" ] || \
+ $DEBUG ifconfig "$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"
+ [ "$broadcast" = 1 ] && broadcast="-O broadcast" || broadcast=
+
+ $DEBUG eval udhcpc -t 0 -i "$iface" \
+ ${ipaddr:+-r $ipaddr} \
+ ${hostname:+-H $hostname} \
+ ${clientid:+-c $clientid} \
+ ${vendorid:+-V $vendorid} \
+ -b -p "$pidfile" $broadcast \
+ ${dhcpopts:- -O rootpath -R &}
;;
none)
- setup_interface_none "$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" ] && {
- grep -qs udhcpc "/proc/$pid/cmdline" && kill -TERM $pid && \
- while grep -qs udhcpc "/proc/$pid/cmdline"; do sleep 1; done
- rm -f "$pidfile"
- }
+ service_kill udhcpc "$pidfile"
uci -P /var/state revert "network.$config"
}
for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null
+ do_sysctl net.ipv6.conf.$dev.disable_ipv6 0
+ [ "${dev##wlan}" != "$dev" ] && \
+ do_sysctl net.ipv6.conf.mon.$dev.disable_ipv6 0
done
}
}
projects / openwrt.git / blobdiff