From 7acaafb61b0d3de7f70f47b366babd2b1b7c28a2 Mon Sep 17 00:00:00 2001 From: Jo-Philipp Wich Date: Thu, 2 Dec 2010 22:41:03 +0000 Subject: 6to4: support multiple internal networks, use state vars for radvd config SVN-Revision: 24219 --- package/6to4/Makefile | 2 +- package/6to4/files/6to4.sh | 167 +++++++++++++++++++++++++++++++-------------- 2 files changed, 115 insertions(+), 54 deletions(-) (limited to 'package') diff --git a/package/6to4/Makefile b/package/6to4/Makefile index 3becce9c5f..c106570118 100644 --- a/package/6to4/Makefile +++ b/package/6to4/Makefile @@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=6to4 -PKG_VERSION:=2 +PKG_VERSION:=3 PKG_RELEASE:=1 include $(INCLUDE_DIR)/package.mk diff --git a/package/6to4/files/6to4.sh b/package/6to4/files/6to4.sh index 31dd4b7c88..cb4a463b01 100755 --- a/package/6to4/files/6to4.sh +++ b/package/6to4/files/6to4.sh @@ -18,6 +18,72 @@ find_6to4_prefix() { printf "2002:%02x%02x:%02x%02x\n" $1 $2 $3 $4 } +set_6to4_radvd_interface() { + local cfgid="$1" + local lanif="${2:-lan}" + local ifsection="" + + find_ifsection() { + local net + local cfg="$1" + config_get net "$cfg" interface + + [ "$net" = "$lanif" ] && { + ifsection="$cfg" + return 1 + } + } + + config_foreach find_ifsection interface + + [ -z "$ifsection" ] && { + ifsection="iface_$sid" + uci_set_state radvd "$ifsection" "" interface + uci_set_state radvd "$ifsection" interface "$lanif" + } + + uci_set_state radvd "$ifsection" ignore 0 + uci_set_state radvd "$ifsection" IgnoreIfMissing 1 + uci_set_state radvd "$ifsection" AdvSendAdvert 1 + uci_set_state radvd "$ifsection" MaxRtrAdvInterval 30 +} + +set_6to4_radvd_prefix() { + local cfgid="$1" + local lanif="${2:-lan}" + local wanif="${3:-wan}" + local prefix="${4:-0:0:0:1::/64}" + local pfxsection="" + + find_pfxsection() { + local net base + local cfg="$1" + config_get net "$cfg" interface + config_get base "$cfg" Base6to4Interface + + [ "$net" = "$lanif" ] && [ "$base" = "$wanif" ] && { + pfxsection="$cfg" + return 1 + } + } + + config_foreach find_pfxsection prefix + + [ -z "$pfxsection" ] && { + pfxsection="prefix_${sid}_${lanif}" + uci_set_state radvd "$pfxsection" "" prefix + uci_set_state radvd "$pfxsection" ignore 0 + uci_set_state radvd "$pfxsection" interface "$lanif" + uci_set_state radvd "$pfxsection" prefix "$prefix" + uci_set_state radvd "$pfxsection" AdvOnLink 1 + uci_set_state radvd "$pfxsection" AdvAutonomous 1 + uci_set_state radvd "$pfxsection" AdvValidLifetime 300 + uci_set_state radvd "$pfxsection" AdvPreferredLifetime 120 + uci_set_state radvd "$pfxsection" Base6to4Interface "$wanif" + } +} + + # Hook into scan_interfaces() to synthesize a .device option # This is needed for /sbin/ifup to properly dispatch control # to setup_interface_6to4() even if no .ifname is set in @@ -98,48 +164,43 @@ setup_interface_6to4() { uci_set_state network "$cfg" defaultroute 1 } - # find delegation target - local adv_interface - config_get adv_interface "$cfg" adv_interface - - local adv_ifname - config_get adv_ifname "${adv_interface:-lan}" ifname - - local adv_subnet=$(uci_get network "$cfg" adv_subnet) - - grep -qs "^ *$adv_ifname:" /proc/net/dev && { - local subnet6="$prefix6:${adv_subnet:-1}::1/64" - - logger -t "$link" " * Advertising IPv6 subnet $subnet6 on ${adv_interface:-lan} ($adv_ifname)" - ip -6 addr add $subnet6 dev $adv_ifname - uci_set_state network "$cfg" adv_subnet "$subnet6" - uci_set_state network "$cfg" adv_ifname "$adv_ifname" - - [ -f /etc/config/radvd ] && /etc/init.d/radvd enabled && { - local sid="6to4_$cfg" - - uci -q batch <<-EOF - revert radvd.iface_$sid - revert radvd.prefix_$sid - set radvd.iface_$sid=interface - set radvd.iface_$sid.ignore=0 - set radvd.iface_$sid.interface=${adv_interface:-lan} - set radvd.iface_$sid.IgnoreIfMissing=1 - set radvd.iface_$sid.AdvSendAdvert=1 - set radvd.iface_$sid.MaxRtrAdvInterval=30 - set radvd.prefix_$sid=prefix - set radvd.prefix_$sid.ignore=0 - set radvd.prefix_$sid.interface=${adv_interface:-lan} - set radvd.prefix_$sid.prefix=0:0:0:${adv_subnet:-1}::/64 - set radvd.prefix_$sid.AdvOnLink=1 - set radvd.prefix_$sid.AdvAutonomous=1 - set radvd.prefix_$sid.AdvValidLifetime=300 - set radvd.prefix_$sid.AdvPreferredLifetime=120 - set radvd.prefix_$sid.Base6to4Interface=$wancfg - EOF - - /etc/init.d/radvd restart - } + [ -f /etc/config/radvd ] && /etc/init.d/radvd enabled && { + local sid="6to4_$cfg" + + uci_revert_state radvd + config_load radvd + + # find delegation target + local adv_interface + config_get adv_interface "$cfg" adv_interface + + local adv_subnet=$(uci_get network "$cfg" adv_subnet) + adv_subnet=$((0x${adv_subnet:-1})) + + local adv_subnets="" + + for adv_interface in ${adv_interface:-lan}; do + local adv_ifname + config_get adv_ifname "${adv_interface:-lan}" ifname + + grep -qs "^ *$adv_ifname:" /proc/net/dev && { + local subnet6="$(printf "%s:%x::1/64" "$prefix6" $adv_subnet)" + + logger -t "$link" " * Advertising IPv6 subnet $subnet6 on ${adv_interface:-lan} ($adv_ifname)" + ip -6 addr add $subnet6 dev $adv_ifname + + set_6to4_radvd_interface "$sid" "$adv_interface" + set_6to4_radvd_prefix "$sid" "$adv_interface" \ + "$wancfg" "$(printf "0:0:0:%x::/64" $adv_subnet)" + + adv_subnets="${adv_subnets:+$adv_subnets }$adv_ifname:$subnet6" + adv_subnet=$(($adv_subnet + 1)) + } + done + + uci_set_state network "$cfg" adv_subnets "$adv_subnets" + + /etc/init.d/radvd restart } logger -t "$link" "... started" @@ -157,24 +218,24 @@ stop_interface_6to4() { local local6=$(uci_get_state network "$cfg" ip6addr) local defaultroute=$(uci_get_state network "$cfg" defaultroute) - local adv_subnet=$(uci_get_state network "$cfg" adv_subnet) - local adv_ifname=$(uci_get_state network "$cfg" adv_ifname) + local adv_subnets=$(uci_get_state network "$cfg" adv_subnets) grep -qs "^ *$link:" /proc/net/dev && { logger -t "$link" "Shutting down ..." env -i ACTION="ifdown" INTERFACE="$cfg" DEVICE="$link" PROTO=6to4 /sbin/hotplug-call "iface" & - [ -n "$adv_subnet" ] && [ -n "$adv_ifname" ] && { - local sid="6to4_$cfg" - - uci -q batch <<-EOF - revert radvd.iface_$sid - revert radvd.prefix_$sid - EOF - + [ -n "$adv_subnets" ] && { + uci_revert_state radvd /etc/init.d/radvd enabled && /etc/init.d/radvd restart - ip -6 addr del $adv_subnet dev $adv_ifname + local adv_subnet + for adv_subnet in $adv_subnets; do + local ifname="${adv_subnet%%:*}" + local subnet="${adv_subnet#*:}" + + logger -t "$link" " * Removing IPv6 subnet $subnet from interface $ifname" + ip -6 addr del $subnet dev $ifname + done } [ "$defaultroute" = "1" ] && { -- cgit v1.2.3