add cname section
[openwrt/svn-archive/archive.git] / package / base-files / files / lib / network / config.sh
index 358e610f62b3114b58c637ba04e820649526782f..29d021af92c1ce92a5a891ec421ac25e0bfbd001 100755 (executable)
@@ -3,6 +3,29 @@
 
 # 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 $interfaces; do
@@ -83,15 +106,15 @@ add_dns() {
        local dns
        local add
        for dns in "$@"; do
-               grep -qsF "nameserver $dns" /tmp/resolv.conf.auto || {
+               grep -qsE "^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 "$add"
+               uci_toggle_state network "$cfg" dns "$add"
+               uci_toggle_state network "$cfg" resolv_dns "$add"
        }
 }
 
@@ -103,7 +126,7 @@ remove_dns() {
                [ -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
+                               sed -i -e "/^nameserver ${dns//./\\.}$/d" /tmp/resolv.conf.auto
                        done
                }
 
@@ -129,7 +152,7 @@ sort_list() {
 prepare_interface() {
        local iface="$1"
        local config="$2"
-       local vifmac="$3"
+       local macaddr="$3"
 
        # if we're called for the bridge interface itself, don't bother trying
        # to create any interfaces here. The scripts have already done that, otherwise
@@ -143,13 +166,18 @@ prepare_interface() {
                # make sure the interface is removed from any existing bridge and deconfigured,
                # (deconfigured only if the interface is not set to proto=none)
                unbridge "$iface"
+
+               local mtu macaddr txqueuelen
+               config_get mtu "$config" mtu
+               [ -n "$macaddr" ] || config_get macaddr "$config" macaddr
+               config_get txqueuelen "$config" txqueuelen
+               [ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
+               $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} ${txqueuelen:+txqueuelen $txqueuelen} up
+
                [ "$proto" = none ] || ifconfig "$iface" 0.0.0.0
 
-               # Change interface MAC address if requested
-               [ -n "$vifmac" ] && {
-                       ifconfig "$iface" down
-                       ifconfig "$iface" hw ether "$vifmac" up
-               }
+               # Apply sysctl settings
+               map_sysctls "$config" "$iface"
        }
 
        # Setup VLAN interfaces
@@ -164,34 +192,30 @@ prepare_interface() {
                        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
                                        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" "$iface"
                                        # Bridge existed already. No further processing necesary
                                } || {
-                                       local stp
+                                       local stp igmp_snooping
                                        config_get_bool stp "$config" stp 0
+                                       config_get_bool igmp_snooping "$config" igmp_snooping 1
                                        $DEBUG brctl addbr "br-$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)"
+                                       echo $igmp_snooping > /sys/devices/virtual/net/br-$config/bridge/multicast_snooping 2>/dev/null
+                                       $DEBUG ifconfig "br-$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.
@@ -210,8 +234,8 @@ set_interface_ifname() {
 
        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() {
@@ -235,10 +259,15 @@ setup_interface_static() {
        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 "$ip6addr"
+       [ -z "$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 "$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
@@ -325,14 +354,6 @@ setup_interface() {
        }
 
        # Interface settings
-       grep "$iface:" /proc/net/dev > /dev/null && {
-               local mtu macaddr txqueuelen
-               config_get mtu "$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} ${txqueuelen:+txqueuelen $txqueuelen} up
-       }
        set_interface_ifname "$config" "$iface"
 
        [ -n "$proto" ] || config_get proto "$config" proto
@@ -345,7 +366,7 @@ setup_interface() {
                        local pidfile="/var/run/dhcp-${iface}.pid"
                        service_kill udhcpc "$pidfile"
 
-                       local ipaddr netmask hostname proto1 clientid vendorid broadcast
+                       local ipaddr netmask hostname proto1 clientid vendorid broadcast reqopts
                        config_get ipaddr "$config" ipaddr
                        config_get netmask "$config" netmask
                        config_get hostname "$config" hostname
@@ -353,13 +374,19 @@ setup_interface() {
                        config_get clientid "$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 $opt"
+                       done
+
                        # don't stay running in background if dhcp is not the main proto on the interface (e.g. when using pptp)
-                       local dhcpopts
-                       [ ."$proto1" != ."$proto" ] && dhcpopts="-n -q"
+                       [ "$proto1" != "$proto" ] && append dhcpopts "-n -q" || append dhcpopts "-O rootpath -R &"
                        [ "$broadcast" = 1 ] && broadcast="-O broadcast" || broadcast=
 
                        $DEBUG eval udhcpc -t 0 -i "$iface" \
@@ -368,7 +395,7 @@ setup_interface() {
                                ${clientid:+-c $clientid} \
                                ${vendorid:+-V $vendorid} \
                                -b -p "$pidfile" $broadcast \
-                               ${dhcpopts:- -O rootpath -R &}
+                               ${dhcpopts}
                ;;
                none)
                        setup_interface_none "$iface" "$config"
@@ -411,6 +438,7 @@ unbridge() {
 
                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
        }
 }