From: thepeople <thepeople@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sun, 14 Mar 2010 18:16:29 +0000 (+0000)
Subject: Update wide-dhcpv6 package, from #6820
X-Git-Url: http://git.archive.openwrt.org/?a=commitdiff_plain;h=85dd0c381bcf0223156f94a6619e905e565eb9cb;p=packages.git

Update wide-dhcpv6 package, from #6820

git-svn-id: svn://svn.openwrt.org/openwrt/packages@20212 3c298f89-4303-0410-b956-a3cf2f4a3e73
---

diff --git a/ipv6/wide-dhcpv6/Makefile b/ipv6/wide-dhcpv6/Makefile
index 30119dfdc..32fae025d 100644
--- a/ipv6/wide-dhcpv6/Makefile
+++ b/ipv6/wide-dhcpv6/Makefile
@@ -1,15 +1,9 @@
-#
-# Copyright (C) 2006-2010 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
 
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=wide-dhcpv6
 PKG_VERSION:=20080615
-PKG_RELEASE:=1
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@SF/$(PKG_NAME)
@@ -20,46 +14,122 @@ include $(INCLUDE_DIR)/package.mk
 define Package/wide-dhcpv6/Default
   SECTION:=ipv6
   CATEGORY:=IPv6
-  TITLE:=IPv6 DHCPv6 implementaion for BSD and Linux
-  URL:=http://wide-dhcpv6.sourceforge.net/
+  TITLE:=WIDE-DHCPv6
+  SUBMENU:=wide-dhcpv6
+  DEPENDS:=+kmod-ipv6 
+  URL:=https://sourceforge.net/projects/wide-dhcpv6/
 endef
 
-define Package/wide-dhcpv6/description
-WIDE-DHCPv6 is an open-source implementation of Dynamic Host Configuration
-Protocol for IPv6 (DHCPv6) originally developed by the KAME project. The
-implementation mainly conforms to the following standards: RFC3315,3319,3633,
-3646,4075,4272,etc.
+define Package/wide-dhcpv6-client
+  $(call Package/wide-dhcpv6/Default)
+  TITLE+= client
 endef
 
-define Package/wide-dhcpv6-client
-	$(call Package/wide-dhcpv6/Default)
-	TITLE+= client
+define Package/wide-dhcpv6-client/description
+	WIDE-DHCPv6 is an open-source implementation of Dynamic Host Configuration Protocol
+	for IPv6 (DHCPv6) originally developed by the KAME project. The implementation
+	mainly conforms to the following standards: RFC3315,3319,3633,3646,4075,4272,etc.
+
+	This package installs the client component.
 endef
 
 define Package/wide-dhcpv6-server
-	$(call Package/wide-dhcpv6/Default)
-	TITLE+= server
+  $(call Package/wide-dhcpv6/Default)
+  TITLE+= server
+endef
+
+define Package/wide-dhcpv6-server/description
+	WIDE-DHCPv6 is an open-source implementation of Dynamic Host Configuration Protocol
+	for IPv6 (DHCPv6) originally developed by the KAME project. The implementation
+	mainly conforms to the following standards: RFC3315,3319,3633,3646,4075,4272,etc.
+
+	This package installs the server component.
 endef
 
 define Package/wide-dhcpv6-relay
-	$(call Package/wide-dhcpv6/Default)
-	TITLE+= relay
+  $(call Package/wide-dhcpv6/Default)
+  TITLE+= relay
 endef
 
-define Package/wide-dhcpv6-ctl
-	$(call Package/wide-dhcpv6/Default)
-	TITLE+= ctl
+define Package/wide-dhcpv6-relay/description
+	WIDE-DHCPv6 is an open-source implementation of Dynamic Host Configuration Protocol
+	for IPv6 (DHCPv6) originally developed by the KAME project. The implementation
+	mainly conforms to the following standards: RFC3315,3319,3633,3646,4075,4272,etc.
+
+	This package installs the relay component.
+endef
+
+define Package/wide-dhcpv6-control
+  $(call Package/wide-dhcpv6/Default)
+  TITLE+= client and server control utility
+endef
+
+define Package/wide-dhcpv6-control/description
+	WIDE-DHCPv6 is an open-source implementation of Dynamic Host Configuration Protocol
+	for IPv6 (DHCPv6) originally developed by the KAME project. The implementation
+	mainly conforms to the following standards: RFC3315,3319,3633,3646,4075,4272,etc.
+
+	This package installs the client and server control utility.
+endef
+
+define Build/Configure
+	$(call Build/Configure/Default,--with-localdbdir=/var)
+endef
+
+define Build/Compile	
+	$(MAKE) -C $(PKG_BUILD_DIR) \
+		DESTDIR="$(PKG_INSTALL_DIR)" \
+		all 
+endef
+
+define Package/wide-dhcpv6-client/conffiles
+/etc/config/dhcp6c
 endef
 
 define Package/wide-dhcpv6-client/install
-	$(INSTALL_DIR) $(1)/sbin
-	$(INSTALL_BIN) $(PKG_BUILD_DIR)/dhcp6c $(1)/sbin
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/dhcp6c $(1)/usr/sbin
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) ./files/dhcp6c.conf $(1)/etc/config/dhcp6c
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/dhcp6c.init $(1)/etc/init.d/dhcp6c
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
+	$(INSTALL_DATA) ./files/dhcp6c.hotplug $(1)/etc/hotplug.d/iface/40-dhcp6c	
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/dhcp6c
+	$(INSTALL_DATA) ./files/dhcp6c-dnsmasq.hotplug $(1)/etc/hotplug.d/dhcp6c/10-dnsmasq
+	$(INSTALL_DATA) ./files/dhcp6c-radvd.hotplug $(1)/etc/hotplug.d/dhcp6c/20-radvd
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) ./files/dhcp6c-state $(1)/usr/bin/dhcp6c-state
+endef
 
+define Package/wide-dhcpv6-server/conffiles
+/etc/config/dhcp6s
+endef
+
+define Package/wide-dhcpv6-server/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/dhcp6s $(1)/usr/sbin
 	$(INSTALL_DIR) $(1)/etc
-	$(INSTALL_DATA) ./files/dhcp6c.config $(1)/etc/dhcp6c.conf
+	$(INSTALL_CONF) $(PKG_BUILD_DIR)/dhcp6s.conf.sample $(1)/etc
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) ./files/dhcp6s.conf $(1)/etc/config/dhcp6s
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/dhcp6s.init $(1)/etc/init.d/dhcp6s
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface
+	$(INSTALL_DATA) ./files/dhcp6s.hotplug $(1)/etc/hotplug.d/iface/50-dhcp6s	
+endef
+
+define Package/wide-dhcpv6-relay/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/dhcp6relay $(1)/usr/sbin
+endef
+
+define Package/wide-dhcpv6-control/install
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/dhcp6ctl $(1)/usr/sbin
 endef
 
 $(eval $(call BuildPackage,wide-dhcpv6-client))
 $(eval $(call BuildPackage,wide-dhcpv6-server))
 $(eval $(call BuildPackage,wide-dhcpv6-relay))
-$(eval $(call BuildPackage,wide-dhcpv6-ctl))
+$(eval $(call BuildPackage,wide-dhcpv6-control))
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c-dnsmasq.hotplug b/ipv6/wide-dhcpv6/files/dhcp6c-dnsmasq.hotplug
new file mode 100644
index 000000000..12e18a25c
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6c-dnsmasq.hotplug
@@ -0,0 +1,53 @@
+#!/bin/sh
+
+. /etc/functions.sh
+
+getoption() {
+	local cfg=$1
+	config_get resolvfile "$cfg" resolvfile
+}
+
+config_load dhcp6c
+
+local dns 
+config_get dns basic dns none
+[ $dns != "dnsmasq" ] && return 0
+
+if [ "$ACTION" = "start" ]; then
+
+	local domain_name_servers
+	config_get domain_name_servers state domain_name_servers
+
+	if [ -n "$domain_name_servers" ]; then
+
+		config_load dhcp
+	
+		local resolvfile
+		config_foreach getoption dnsmasq
+
+		if [ -n "$resolvfile" ]; then
+
+			cp -pf $resolvfile "$resolvfile.dhcp6c_backup"
+	
+			for nameserver in $domain_name_servers; do
+				echo nameserver $nameserver >> $resolvfile
+			done
+
+		fi
+	
+	fi
+
+fi
+
+if [ "$ACTION" = "stop" ]; then
+
+	config_load dhcp
+
+	local resolvfile
+	config_foreach getoption dnsmasq
+	if [ -f "$resolvfile.dhcp6c_backup" ]; then
+		mv -f "$resolvfile.dhcp6c_backup" $resolvfile
+	fi 
+
+fi
+
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c-radvd.hotplug b/ipv6/wide-dhcpv6/files/dhcp6c-radvd.hotplug
new file mode 100644
index 000000000..5c08e8c4e
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6c-radvd.hotplug
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+[ -f /etc/config/radvd ] && /etc/init.d/radvd restart
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c-state b/ipv6/wide-dhcpv6/files/dhcp6c-state
new file mode 100644
index 000000000..313439761
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6c-state
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+. /etc/functions.sh
+
+uci_revert_state dhcp6c state
+uci_set_state dhcp6c state "" dhcp6c_state
+uci_set_state dhcp6c state domain_name_servers "$new_domain_name_servers"
+uci_set_state dhcp6c state domain_name "$domain_name"                    
+uci_set_state dhcp6c state ntp_servers "$ntp_servers"                    
+uci_set_state dhcp6c state sip_server_address "$sip_server_address"      
+uci_set_state dhcp6c state sip_domain_name "$sip_domain_name"            
+uci_set_state dhcp6c state nis_server_address "$nis_server_address"      
+uci_set_state dhcp6c state nis_domain_name "$nis_domain_name"            
+uci_set_state dhcp6c state nisp_server_address "$nisp_server_address"    
+uci_set_state dhcp6c state nisp_domain_name "$nisp_domain_name"          
+uci_set_state dhcp6c state bcmcs_server_address "$bcmcs_server_address"  
+uci_set_state dhcp6c state bcmcs_domain_name "$bcmcs_domain_name"
+
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c.conf b/ipv6/wide-dhcpv6/files/dhcp6c.conf
new file mode 100644
index 000000000..9ea543c83
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6c.conf
@@ -0,0 +1,37 @@
+config 'dhcp6c' 'basic'
+	option 'enabled' '0'				# 1 = enabled; 0 = disabled
+	option 'interface' 'wan'			# This is the interface the DHCPv6 client will run on
+	option 'dns' 'dnsmasq'				# Which DNS server you run (only dnsmasq currently supported)
+	
+	# Send options (1 = send; 0 = do not send)
+	option 'pd' '1'					# Prefix Delegation
+	option 'na' '0'					# Non-Temporary Address
+	option 'rapid_commit' '1'			# Rapid Commit
+	
+	# Request options (1 = request; 0 = do not request)
+	option 'domain_name_servers' '1'
+	option 'domain_name' '0'
+	option 'ntp_servers' '0'
+	option 'sip_server_address' '0'
+	option 'sip_domain_name' '0'
+	option 'nis_server_address' '0'
+	option 'nis_domain_name' '0'
+	option 'nisp_server_address' '0'
+	option 'nisp_domain_name' '0'
+	option 'bcmcs_server_address' '0'
+	option 'bcmcs_domain_name' '0'
+	
+	# Script to run when a reply is received
+	option 'script' '/usr/bin/dhcp6c-state'
+
+# Define one or more interfaces on which prefixes should be assigned
+config 'interface' 'loopback'
+	option 'enabled' '1'				# 1 = enabled; 0 = disabled
+	option 'sla_id' '0'				# Site level aggregator identifier specified in decimal (subnet)
+	option 'sla_len' '4'				# Site level aggregator length (64 - size of prefix being delegated)
+							# e.g. /60 from ISP -> 64 - 60 = 4
+
+config 'interface' 'lan'
+	option 'enabled' '1'
+	option 'sla_id' '1'
+	option 'sla_len' '4'
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c.config b/ipv6/wide-dhcpv6/files/dhcp6c.config
index d557ad97c..e69de29bb 100644
--- a/ipv6/wide-dhcpv6/files/dhcp6c.config
+++ b/ipv6/wide-dhcpv6/files/dhcp6c.config
@@ -1,25 +0,0 @@
-# The followings are a sample configuration for requiring the "stateless"
-# DHCPv6 service.
-# interface eth0 {
-#	information-only;
-#};
-
-
-# The followings are a sample configuration to be delegated an IPv6 prefix
-# from an upstream service provider.  With this configuration dhcp6c will
-# send solicit messages containing an IA_PD option, with an IAID 0, on to
-# an upstream PPP link, ppp0.  After receiving some prefixes from a server,
-# dhcp6c will then configure derived IPv6 prefixes with the SLA ID 1 on a
-# local ethernet interface, ne0.  Note that the IAID for the id-assoc
-# statement is 0 according to the default.
-
-interface ppp1 {
-        send ia-pd 0;
-};
-
-id-assoc pd {
-        prefix-interface lan0 {
-                sla-id 1;
-				sla-len 8;
-        };
-};
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c.hotplug b/ipv6/wide-dhcpv6/files/dhcp6c.hotplug
new file mode 100644
index 000000000..947c53c0e
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6c.hotplug
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+include /lib/network
+
+config_load "dhcp6c"
+
+local enabled
+config_get_bool enabled basic enabled 0
+[ $enabled -eq 0 ] && return 0
+
+local client_interface
+config_get client_interface basic interface
+
+if [ "$INTERFACE" = "$client_interface" ] && [ "$ACTION" = "ifup" ]; then
+	/etc/init.d/dhcp6c start
+fi
+
+if [ "$INTERFACE" = "$client_interface" ] && [ "$ACTION" = "ifdown" ]; then
+	/etc/init.d/dhcp6c stop
+fi
diff --git a/ipv6/wide-dhcpv6/files/dhcp6c.init b/ipv6/wide-dhcpv6/files/dhcp6c.init
new file mode 100644
index 000000000..4be165d8a
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6c.init
@@ -0,0 +1,131 @@
+#!/bin/sh /etc/rc.common 
+
+DHCP6C_REQUEST_OPTIONS='domain_name_servers domain_name ntp_servers sip_server_address sip_domain_name nis_server_address nis_domain_name nisp_server_address nisp_domain_name bcmcs_server_address bcmcs_domain_name'
+
+get_ifname() {
+	local interface=$1
+	local ifname
+	scan_interfaces
+	config_get ifname "$interface" ifname
+	printf '%s\n' "$ifname"
+	return 0
+}
+
+dhcp6c_write_interface() {
+	local cfg=$1
+	local sla_id
+	local sla_len
+	local enabled
+	
+	config_get_bool enabled "$cfg" enabled 0
+	 
+	if [ $enabled -ne 0 ]; then
+	
+		config_get sla_id "$cfg" sla_id
+		config_get sla_len "$cfg" sla_len
+
+		printf '\tprefix-interface %s {\n' "$(get_ifname $cfg)"
+		printf '\t\tsla-id %s;\n' "$sla_id"
+		printf '\t\tsla-len %s;\n' "$sla_len"
+		printf '\t};\n'
+	
+	fi
+	
+}
+
+dhcp6c_write_request() {
+	printf '\trequest %s;\n' $1 | sed -e s/_/-/g
+}
+
+dhcp6c_write_config() {
+
+	local pd
+	local na
+	config_get_bool pd basic pd 0
+	config_get_bool na basic na 0
+	
+	printf 'interface %s {\n' "$client_ifname"
+	
+	if [ $pd -ne 0 ]; then
+		printf '\tsend ia-pd 0;\n'
+	fi
+	
+	if [ $na -ne 0 ]; then
+		printf '\tsend ia-na 0;\n'
+	fi
+	
+	local rapid_commit
+	config_get_bool rapid_commit basic rapid_commit 0
+	[ $rapid_commit -ne 0 ] && printf '\tsend rapid-commit;\n'
+	
+	local script
+	config_get script basic script
+	[ "$script" != "" ] && printf '\tscript "%s";\n' "$script"
+	
+	local request
+	local value
+	for request in $DHCP6C_REQUEST_OPTIONS; do
+		config_get_bool value basic "$request" 0
+		[ $value -ne 0 ] && dhcp6c_write_request "$request"
+	done
+
+	printf '};\n\n'
+	
+	if [ $pd -ne 0 ]; then
+		printf 'id-assoc pd 0 {\n'
+		config_foreach dhcp6c_write_interface interface
+		printf '};\n\n'
+	fi
+	
+	if [ $na -ne 0 ]; then
+		printf 'id-assoc na 0 {\n'
+		printf '};\n\n'
+	fi
+	
+	return 0
+}
+
+start() {
+
+	[ ! -e /etc/dhcp6cctlkey ] && `dd if=/dev/urandom count=1 2> /dev/null | md5sum | cut -d" " -f1 > /etc/dhcp6cctlkey`
+
+	[ -e /var/run/dhcp6c.pid ] && return 0
+
+	include /lib/network
+
+	config_load "dhcp6c"
+	
+	local enabled
+	config_get_bool enabled basic enabled 0
+	[ $enabled -eq 0 ] && return 0
+	
+	logger starting dhcp6c
+	
+	local client_interface
+	config_get client_interface basic interface
+	local client_ifname=$(get_ifname "$client_interface")
+	
+	local config_file="/var/etc/dhcp6c.conf"
+	mkdir -m 755 -p /var/etc
+	dhcp6c_write_config > $config_file
+	
+	/usr/sbin/dhcp6c -c $config_file $client_ifname
+	
+	sleep 3
+	ACTION=start /sbin/hotplug-call dhcp6c
+	
+	return 0
+	
+}
+
+stop() {
+
+	logger stopping dhcp6c
+	rm -f /var/etc/dhcp6c.conf
+	kill -TERM `cat /var/run/dhcp6c.pid`
+	ACTION=stop /sbin/hotplug-call dhcp6c
+	return 0
+	
+}
+
+
diff --git a/ipv6/wide-dhcpv6/files/dhcp6s.conf b/ipv6/wide-dhcpv6/files/dhcp6s.conf
new file mode 100644
index 000000000..dda53d1f8
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6s.conf
@@ -0,0 +1,4 @@
+config 'dhcp6s' 'basic'
+	option 'enabled' '0'				# 1 = enabled; 0 = disabled
+	option 'interface' 'lan'			# This is the interface the DHCPv6 server will run on
+	option 'config_file' '/etc/dhcp6s.conf'		# Config file (as this UCI config doesn't fully support all options)
diff --git a/ipv6/wide-dhcpv6/files/dhcp6s.hotplug b/ipv6/wide-dhcpv6/files/dhcp6s.hotplug
new file mode 100644
index 000000000..726014940
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6s.hotplug
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+include /lib/network
+
+config_load "dhcp6s"
+
+local enabled
+config_get_bool enabled basic enabled 0
+[ $enabled -eq 0 ] && return 0
+
+local server_interface
+config_get server_interface basic interface
+
+if [ "$INTERFACE" = "$server_interface" ] && [ "$ACTION" = "ifup" ]; then
+	/etc/init.d/dhcp6s start
+fi
+
+if [ "$INTERFACE" = "$server_interface" ] && [ "$ACTION" = "ifdown" ]; then
+	/etc/init.d/dhcp6s stop
+fi
diff --git a/ipv6/wide-dhcpv6/files/dhcp6s.init b/ipv6/wide-dhcpv6/files/dhcp6s.init
new file mode 100644
index 000000000..fc0da52e9
--- /dev/null
+++ b/ipv6/wide-dhcpv6/files/dhcp6s.init
@@ -0,0 +1,50 @@
+#!/bin/sh /etc/rc.common 
+
+get_ifname() {
+	local interface=$1
+	local ifname
+	scan_interfaces
+	config_get ifname "$interface" ifname
+	printf '%s\n' "$ifname"
+	return 0
+}
+
+start() {
+
+	[ ! -e /etc/dhcp6sctlkey ] && `dd if=/dev/urandom count=1 2> /dev/null | md5sum | cut -d" " -f1 > /etc/dhcp6sctlkey`
+
+	[ -e /var/run/dhcp6s.pid ] && return 0
+
+	include /lib/network
+
+	config_load "dhcp6s"
+	
+	local enabled
+	config_get_bool enabled basic enabled 0
+	[ $enabled -eq 0 ] && return 0
+	
+	logger starting dhcp6s
+	
+	local server_interface 
+	config_get server_interface basic interface
+	local server_ifname=$(get_ifname "$server_interface")
+	
+	local config_file
+	config_get config_file basic config_file
+
+	[ ! -e $config_file ] && return 1
+	
+	/usr/sbin/dhcp6s -c $config_file $server_ifname
+	
+	return 0
+	
+}
+
+stop() {
+
+	logger stopping dhcp6s
+	kill -TERM `cat /var/run/dhcp6s.pid`
+	return 0
+	
+}
+
diff --git a/ipv6/wide-dhcpv6/patches/001-linux_old_compat.patch b/ipv6/wide-dhcpv6/patches/001-linux_old_compat.patch
new file mode 100644
index 000000000..6dca9f3df
--- /dev/null
+++ b/ipv6/wide-dhcpv6/patches/001-linux_old_compat.patch
@@ -0,0 +1,37 @@
+--- wide-dhcpv6-20080615.orig/common.h	2007-03-21 20:52:57.000000000 +1100
++++ wide-dhcpv6-20080615/common.h	2009-11-29 16:00:02.000000000 +1100
+@@ -187,3 +187,34 @@
+ #ifndef HAVE_STRLCPY
+ extern size_t strlcpy __P((char *, const char *, size_t));
+ #endif
++
++/*
++ * compat hacks in case libc and kernel get out of sync:
++ *
++ * glibc 2.4 and uClibc 0.9.29 introduce IPV6_RECVPKTINFO etc. and change IPV6_PKTINFO
++ * This is only supported in Linux kernel >= 2.6.14
++ *
++ * This is only an approximation because the kernel version that libc was compiled against
++ * could be older or newer than the one being run.  But this should not be a problem --
++ * we just keep using the old kernel interface.
++ *
++ * these are placed here because they're needed in all of socket.c, recv.c and send.c
++ */
++#ifdef __linux__
++#  if defined IPV6_RECVHOPLIMIT || defined IPV6_RECVPKTINFO
++#    include <linux/version.h>
++#    if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14)
++#      if defined IPV6_RECVHOPLIMIT && defined IPV6_2292HOPLIMIT
++#        undef IPV6_RECVHOPLIMIT
++#        define IPV6_RECVHOPLIMIT IPV6_2292HOPLIMIT
++#      endif
++#      if defined IPV6_RECVPKTINFO && defined IPV6_2292PKTINFO
++#        undef IPV6_RECVPKTINFO
++#        undef IPV6_PKTINFO
++#        define IPV6_RECVPKTINFO IPV6_2292PKTINFO
++#        define IPV6_PKTINFO IPV6_2292PKTINFO
++#      endif
++#    endif
++#  endif
++#endif
++