# DEBUG="echo"
+do_sysctl() {
+ [ -n "$2" ] && \
+ sysctl -n -e -w "$1=$2" >/dev/null || \
+ sysctl -n -e "$1"
+}
+
+map_sysctls() {
+ local cfg="$1"
+ local ifn="$2"
+
+ local fam
+ for fam in ipv4 ipv6; do
+ if [ -d /proc/sys/net/$fam ]; then
+ local key
+ for key in /proc/sys/net/$fam/*/$ifn/*; do
+ local val
+ config_get val "$cfg" "${fam}_${key##*/}"
+ [ -n "$val" ] && echo -n "$val" > "$key"
+ done
+ fi
+ done
+}
+
find_config() {
local iftype device iface ifaces ifn
for ifn in $interfaces; do
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 -qsE "^nameserver ${dns//./\\.}$" /tmp/resolv.conf.auto || {
+ add="${add:+$add }$dns"
+ echo "nameserver $dns" >> /tmp/resolv.conf.auto
+ }
+ done
+
+ [ -n "$cfg" ] && {
+ uci_toggle_state network "$cfg" dns "$add"
+ uci_toggle_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="$*"
ifconfig "$iface" down
ifconfig "$iface" hw ether "$vifmac" up
}
+
+ # Apply sysctl settings
+ map_sysctls "$config" "$iface"
}
# Setup VLAN interfaces
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
for dev in $(sort_list "$devices" "$iface"); do
append newdevs "$dev"
done
- uci_set_state network "$config" device "$newdevs"
+ uci_toggle_state network "$config" device "$newdevs"
+ $DEBUG ifconfig "$iface" 0.0.0.0
+ $DEBUG do_sysctl "net.ipv6.conf.$iface.disable_ipv6" 1
$DEBUG brctl addif "br-$config" "$iface"
# Bridge existed already. No further processing necesary
} || {
config_get_bool stp "$config" stp 0
$DEBUG brctl addbr "br-$config"
$DEBUG brctl setfd "br-$config" 0
- $DEBUG ifconfig "br-$config" up
+ $DEBUG ifconfig "$iface" 0.0.0.0
+ $DEBUG do_sysctl "net.ipv6.conf.$iface.disable_ipv6" 1
$DEBUG brctl addif "br-$config" "$iface"
$DEBUG brctl stp "br-$config" $stp
+ [ -z "$macaddr" ] && macaddr="$(cat /sys/class/net/$iface/address)"
+ $DEBUG ifconfig "br-$config" hw ether $macaddr up
# Creating the bridge here will have triggered a hotplug event, which will
# result in another setup_interface() call, so we simply stop processing
# the current event at this point.
}
- ifconfig "$iface" up 2>/dev/null >/dev/null
+ ifconfig "$iface" ${macaddr:+hw ether "${macaddr}"} up 2>/dev/null >/dev/null
return 1
}
;;
local device
config_get device "$1" device
- uci_set_state network "$config" ifname "$ifname"
- uci_set_state network "$config" device "$device"
+ uci_toggle_state network "$config" ifname "$ifname"
+ uci_toggle_state network "$config" device "$device"
}
setup_interface_none() {
config_get ip6addr "$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
+
+ case "$ip6addr" in
+ */*) ;;
+ *:*) ip6addr="$ip6addr/64" ;;
+ esac
[ -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 $ns" >> /tmp/resolv.conf.auto
- }
- done
- }
+ [ -z "$ip6addr" ] || $DEBUG ifconfig "${iface%:*}" add "$ip6addr"
+ [ -z "$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'"
sleep 1
}
- # Check whether this interface has an IPv6 address
- # defined and ensure that the kmod is loaded since
- # ifup could be triggered before modules are loaded.
- local hasipv6
- config_get hasipv6 "$config" ip6addr
- [ -n "$hasipv6" ] && [ ! -d /proc/sys/net/ipv6 ] && {
- grep -q '^ipv6' /etc/modules.d/* && insmod ipv6
- }
-
# Interface settings
- grep "$iface:" /proc/net/dev > /dev/null && {
- local mtu macaddr
+ grep -qE "^ *$iface:" /proc/net/dev && {
+ local mtu macaddr txqueuelen
config_get mtu "$config" mtu
config_get macaddr "$config" macaddr
+ config_get txqueuelen "$config" txqueuelen
[ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
- $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} up
+ $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} ${txqueuelen:+txqueuelen $txqueuelen} up
}
set_interface_ifname "$config" "$iface"
- pidfile="/var/run/$iface.pid"
[ -n "$proto" ] || config_get proto "$config" proto
case "$proto" in
static)
setup_interface_static "$iface" "$config"
;;
dhcp)
- # prevent udhcpc from starting more than once
- lock "/var/lock/dhcp-$iface"
- 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-$iface"
- else
- local ipaddr netmask hostname proto1 clientid
- config_get ipaddr "$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" "$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" ${ipaddr:+-r $ipaddr} ${hostname:+-H $hostname} ${clientid:+-c $clientid} -b -p "$pidfile" ${dhcpopts:- -R &}
- lock -u "/var/lock/dhcp-$iface"
- fi
+ # kill running udhcpc instance
+ local pidfile="/var/run/dhcp-${iface}.pid"
+ service_kill udhcpc "$pidfile"
+
+ local ipaddr netmask hostname proto1 clientid vendorid broadcast reqopts
+ 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 "$config" broadcast 0
+ config_get reqopts "$config" reqopts
+
+ [ -z "$ipaddr" ] || \
+ $DEBUG ifconfig "$iface" "$ipaddr" ${netmask:+netmask "$netmask"}
+
+ # additional request options
+ local opt dhcpopts
+ for opt in $reqopts; do
+ append dhcpopts "-O $opt"
+ done
+
+ # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
+ [ "$proto1" != "$proto" ] && append dhcpopts "-n -q" || append dhcpopts "-O rootpath -R &"
+ [ "$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 \
+ ${dhcpopts}
;;
none)
setup_interface_none "$iface" "$config"
fi
;;
esac
- [ "$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-${ifname}.pid"
+ service_kill udhcpc "$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 $1 }'); do
brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null
+ do_sysctl "net.ipv6.conf.$dev.disable_ipv6" 0
done
}
}
projects / openwrt.git / blobdiff