mipv6-1.0-v2.4.22.patch

mobile ipv6协议Linux实现源代码

+ */
+
+#ifndef _NET_MIPV6_H
+#define _NET_MIPV6_H
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <linux/in6.h>
+
+/*
+ *
+ * Mobile IPv6 Protocol constants
+ *
+ */
+#define DHAAD_RETRIES			4	/* transmissions	*/
+#define INITIAL_BINDACK_TIMEOUT		1	/* seconds 		*/
+#define INITIAL_DHAAD_TIMEOUT		3	/* seconds		*/
+#define INITIAL_SOLICIT_TIMER		3	/* seconds		*/
+#define MAX_BINDACK_TIMEOUT		32 	/* seconds		*/
+#define MAX_NONCE_LIFE			240	/* seconds		*/
+#define MAX_TOKEN_LIFE			210	/* seconds		*/
+#define MAX_RR_BINDING_LIFE		420	/* seconds		*/
+#define MAX_UPDATE_RATE			3	/* 1/s (min delay=1s) 	*/
+#define PREFIX_ADV_RETRIES		3	/* transmissions	*/
+#define PREFIX_ADV_TIMEOUT		3	/* seconds		*/
+
+#define MAX_FAST_UPDATES		5 	/* transmissions	*/
+#define MAX_PFX_ADV_DELAY		1000	/* seconds		*/
+#define SLOW_UPDATE_RATE		10	/* 1/10s (max delay=10s)*/
+#define INITIAL_BINDACK_DAD_TIMEOUT	3	/* seconds		*/
+
+/*
+ *
+ * Mobile IPv6 Protocol configuration variable defaults
+ *
+ */
+#define DefHomeRtrAdvInterval		1000	/* seconds		*/
+#define DefMaxMobPfxAdvInterval		86400	/* seconds		*/
+#define DefMinDelayBetweenRAs		3	/* seconds (min 0.03)	*/
+#define DefMinMobPfxAdvInterval		600	/* seconds		*/
+#define DefInitialBindackTimeoutFirstReg	1.5 /* seconds		*/
+
+/* This is not actually specified in the draft, but is needed to avoid
+ * prefix solicitation storm when valid lifetime of a prefix is smaller
+ * than MAX_PFX_ADV_DELAY
+ */
+#define MIN_PFX_SOL_DELAY		5	/* seconds		*/
+
+/* Mobile IPv6 ICMP types		  */
+/*
+ * TODO: Check with IANA
+ */
+#define MIPV6_DHAAD_REQUEST		150
+#define MIPV6_DHAAD_REPLY		151
+#define MIPV6_PREFIX_SOLICIT		152
+#define MIPV6_PREFIX_ADV		153
+
+/* Binding update flag codes              */
+#define MIPV6_BU_F_ACK			0x80
+#define MIPV6_BU_F_HOME			0x40
+#define MIPV6_BU_F_LLADDR		0x20
+#define MIPV6_BU_F_KEYMGM		0x10
+
+/* Binding ackknowledgment flag codes */
+#define MIPV6_BA_F_KEYMGM		0x80
+
+/* Binding error status */
+#define MIPV6_BE_HAO_WO_BINDING		1
+#define MIPV6_BE_UNKNOWN_MH_TYPE	2
+
+/* Mobility Header */
+struct mipv6_mh
+{
+	__u8	payload;		/* Payload Protocol 		*/
+	__u8	length;			/* MH Length 			*/
+	__u8	type;			/* MH Type			*/
+	__u8	reserved;		/* Reserved			*/
+	__u16	checksum;		/* Checksum			*/
+	__u8	data[0];		/* Message specific data	*/
+} __attribute__ ((packed));
+
+/* Mobility Header type */
+#define IPPROTO_MOBILITY                62 /* TODO: No official protocol number at this point */                
+/* Mobility Header Message Types */
+
+#define MIPV6_MH_BRR			0
+#define MIPV6_MH_HOTI			1
+#define MIPV6_MH_COTI			2
+#define MIPV6_MH_HOT			3
+#define MIPV6_MH_COT			4
+#define MIPV6_MH_BU			5
+#define MIPV6_MH_BA			6
+#define MIPV6_MH_BE			7
+
+/*
+ * Status codes for Binding Acknowledgements
+ */
+#define SUCCESS				0
+#define REASON_UNSPECIFIED		128
+#define ADMINISTRATIVELY_PROHIBITED	129
+#define INSUFFICIENT_RESOURCES		130
+#define HOME_REGISTRATION_NOT_SUPPORTED	131
+#define NOT_HOME_SUBNET			132
+#define NOT_HA_FOR_MN			133
+#define DUPLICATE_ADDR_DETECT_FAIL	134
+#define SEQUENCE_NUMBER_OUT_OF_WINDOW	135
+#define EXPIRED_HOME_NONCE_INDEX	136
+#define EXPIRED_CAREOF_NONCE_INDEX	137
+#define EXPIRED_NONCES			138
+#define REG_TYPE_CHANGE_FORBIDDEN       139
+/*
+ * Values for mipv6_flags in struct inet6_skb_parm
+ */
+
+#define MIPV6_RCV_TUNNEL		0x1
+#define MIPV6_SND_HAO			0x2
+
+
+/*
+ * Mobility Header Message structures
+ */
+
+struct mipv6_mh_brr
+{
+	__u16		reserved;
+	/* Mobility options */
+} __attribute__ ((packed));
+
+struct mipv6_mh_bu
+{
+	__u16		sequence;	/* sequence number of BU	*/
+	__u8		flags;		/* flags			*/
+	__u8		reserved;	/* reserved bits		*/
+	__u16		lifetime;	/* lifetime of BU		*/
+	/* Mobility options */
+} __attribute__ ((packed));
+
+struct mipv6_mh_ba
+{
+	__u8		status;		/* statuscode			*/
+	__u8		reserved;	/* reserved bits		*/
+	__u16		sequence;	/* sequence number of BA	*/
+	__u16		lifetime;	/* lifetime in CN's bcache	*/
+	/* Mobility options */
+} __attribute__ ((packed));
+
+struct mipv6_mh_be
+{
+	__u8		status;
+	__u8		reserved;
+	struct in6_addr	home_addr;
+	/* Mobility options */
+} __attribute__ ((packed));
+
+struct mipv6_mh_addr_ti
+{
+	__u16		reserved;	/* Reserved			*/
+	u_int8_t	init_cookie[8]; /* HoT/CoT Init Cookie		*/
+	/* Mobility options */
+} __attribute__ ((packed));
+
+struct mipv6_mh_addr_test
+{
+	__u16		nonce_index;    /* Home/Care-of Nonce Index	*/
+	u_int8_t	init_cookie[8]; /* HoT/CoT Init Cookie		*/
+	u_int8_t	kgen_token[8];	/* Home/Care-of key generation token */
+	/* Mobility options */
+} __attribute__ ((packed));
+
+/*
+ * Mobility Options for various MH types.
+ */
+#define MIPV6_OPT_PAD1			0x00
+#define MIPV6_OPT_PADN			0x01
+#define MIPV6_OPT_BIND_REFRESH_ADVICE	0x02
+#define MIPV6_OPT_ALTERNATE_COA		0x03
+#define MIPV6_OPT_NONCE_INDICES		0x04
+#define MIPV6_OPT_AUTH_DATA		0x05
+
+#define MIPV6_SEQ_GT(x,y) \
+        ((short int)(((__u16)(x)) - ((__u16)(y))) > 0)
+
+/*
+ * Mobility Option structures
+ */
+
+struct mipv6_mo
+{
+	__u8		type;
+	__u8		length;
+	__u8		value[0];	/* type specific data */
+} __attribute__ ((packed));
+
+struct mipv6_mo_pad1
+{
+	__u8		type;
+} __attribute__ ((packed));
+
+struct mipv6_mo_padn
+{
+	__u8		type;
+	__u8		length;
+	__u8		data[0];
+} __attribute__ ((packed));
+
+struct mipv6_mo_alt_coa
+{
+	__u8		type;
+	__u8		length;
+	struct in6_addr	addr;		/* alternate care-of-address	*/
+} __attribute__ ((packed));
+
+struct mipv6_mo_nonce_indices
+{
+	__u8		type;
+	__u8		length;
+	__u16		home_nonce_i;	/* Home Nonce Index		*/
+	__u16		careof_nonce_i;	/* Careof Nonce Index		*/
+} __attribute__ ((packed)); 
+
+struct mipv6_mo_bauth_data
+{
+	__u8		type;
+	__u8		length;
+	__u8		data[0];
+} __attribute__ ((packed)); 
+
+struct mipv6_mo_br_advice
+{
+	__u8		type;
+	__u8		length;
+	__u16		refresh_interval; /* Refresh Interval		*/
+} __attribute__ ((packed));
+
+/*
+ * Home Address Destination Option structure
+ */
+struct mipv6_dstopt_homeaddr
+{
+	__u8		type;		/* type-code for option 	*/
+	__u8		length;		/* option length 		*/
+	struct in6_addr	addr;		/* home address 		*/
+} __attribute__ ((packed));
+
+#endif /* _NET_MIPV6_H */
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/include/net/ndisc.h devel/include/net/ndisc.h
--- linux-2.4/include/net/ndisc.h	Sat Aug  2 00:07:53 2003
+++ devel/include/net/ndisc.h	Thu Oct  2 13:39:14 2003
@@ -21,6 +21,10 @@
 #define ND_OPT_REDIRECT_HDR		4
 #define ND_OPT_MTU			5
 
+/* Mobile IPv6 specific ndisc options */ 
+#define ND_OPT_RTR_ADV_INTERVAL		7 
+#define ND_OPT_HOME_AGENT_INFO		8  
+
 #define MAX_RTR_SOLICITATION_DELAY	HZ
 
 #define ND_REACHABLE_TIME		(30*HZ)
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/include/net/sock.h devel/include/net/sock.h
--- linux-2.4/include/net/sock.h	Sat Aug  2 00:07:53 2003
+++ devel/include/net/sock.h	Thu Oct  2 13:36:16 2003
@@ -146,7 +146,9 @@
 	struct in6_addr 	rcv_saddr;
 	struct in6_addr		daddr;
 	struct in6_addr		*daddr_cache;
-
+#if defined(CONFIG_IPV6_SUBTREES)
+	struct in6_addr		*saddr_cache;
+#endif
 	__u32			flow_label;
 	__u32			frag_size;
 	int			hop_limit;
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/net/Makefile devel/net/Makefile
--- linux-2.4/net/Makefile	Sat Aug  2 00:07:53 2003
+++ devel/net/Makefile	Tue Aug  5 14:11:49 2003
@@ -23,6 +23,7 @@
 ifneq ($(CONFIG_IPV6),n)
 ifneq ($(CONFIG_IPV6),)
 subdir-$(CONFIG_NETFILTER)	+= ipv6/netfilter
+subdir-$(CONFIG_IPV6_MOBILITY)	+= ipv6/mobile_ip6
 endif
 endif
 
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/net/core/neighbour.c devel/net/core/neighbour.c
--- linux-2.4/net/core/neighbour.c	Sat Aug  2 00:07:57 2003
+++ devel/net/core/neighbour.c	Tue Aug 26 11:08:56 2003
@@ -358,7 +358,7 @@
 	if (!creat)
 		return NULL;
 
-	n = kmalloc(sizeof(*n) + key_len, GFP_KERNEL);
+	n = kmalloc(sizeof(*n) + key_len, GFP_ATOMIC);
 	if (n == NULL)
 		return NULL;
 
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/net/ipv6/Config.in devel/net/ipv6/Config.in
--- linux-2.4/net/ipv6/Config.in	Sat Aug  2 00:07:57 2003
+++ devel/net/ipv6/Config.in	Wed Sep 24 14:29:27 2003
@@ -1,9 +1,15 @@
 #
 # IPv6 configuration
 # 
-
+bool '    IPv6: routing by source address (EXPERIMENTAL)' CONFIG_IPV6_SUBTREES
 #bool '    IPv6: flow policy support' CONFIG_RT6_POLICY
 #bool '    IPv6: firewall support' CONFIG_IPV6_FIREWALL
+
+if [ "$CONFIG_IPV6" != "n" ]; then
+	dep_tristate '    IPv6: IPv6 over IPv6 Tunneling (EXPERIMENTAL)' CONFIG_IPV6_TUNNEL $CONFIG_IPV6
+fi
+
+source net/ipv6/mobile_ip6/Config.in
 
 if [ "$CONFIG_NETFILTER" != "n" ]; then
    source net/ipv6/netfilter/Config.in
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/net/ipv6/Makefile devel/net/ipv6/Makefile
--- linux-2.4/net/ipv6/Makefile	Sat Aug  2 00:07:57 2003
+++ devel/net/ipv6/Makefile	Wed Sep 24 14:29:27 2003
@@ -9,13 +9,27 @@
 
 O_TARGET := ipv6.o
 
+export-objs :=	ipv6_tunnel.o
+
 obj-y :=	af_inet6.o anycast.o ip6_output.o ip6_input.o addrconf.o sit.o \
 		route.o ip6_fib.o ipv6_sockglue.o ndisc.o udp.o raw.o \
 		protocol.o icmp.o mcast.o reassembly.o tcp_ipv6.o \
 		exthdrs.o sysctl_net_ipv6.o datagram.o proc.o \
 		ip6_flowlabel.o
 
+ifeq ($(CONFIG_IPV6_TUNNEL),y)
+obj-y += ipv6_tunnel.o
+endif
+
+ifeq ($(CONFIG_IPV6_MOBILITY),m)
+obj-y += mipglue.o
+endif
+
 obj-m  := $(O_TARGET)
+
+ifeq ($(CONFIG_IPV6_TUNNEL),m)
+obj-m += ipv6_tunnel.o
+endif
 
 #obj-$(CONFIG_IPV6_FIREWALL) += ip6_fw.o
 
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/net/ipv6/addrconf.c devel/net/ipv6/addrconf.c
--- linux-2.4/net/ipv6/addrconf.c	Sat Aug  2 00:07:57 2003
+++ devel/net/ipv6/addrconf.c	Thu Sep 18 23:43:09 2003
@@ -68,6 +68,8 @@
 
 #include <asm/uaccess.h>
 
+#include <net/mipglue.h>
+
 #define IPV6_MAX_ADDRESSES 16
 
 /* Set to 3 to get tracing... */
@@ -105,7 +107,7 @@
 
 static void addrconf_dad_start(struct inet6_ifaddr *ifp);
 static void addrconf_dad_timer(unsigned long data);
-static void addrconf_dad_completed(struct inet6_ifaddr *ifp);
+void addrconf_dad_completed(struct inet6_ifaddr *ifp);
 static void addrconf_rs_timer(unsigned long data);
 static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifa);
 
@@ -330,38 +332,6 @@
 	return idev;
 }
 
-void ipv6_addr_prefix(struct in6_addr *prefix,
-	struct in6_addr *addr, int prefix_len)
-{
-	unsigned long mask;
-	int ncopy, nbits;
-
-	memset(prefix, 0, sizeof(*prefix));
-
-	if (prefix_len <= 0)
-		return;
-	if (prefix_len > 128)
-		prefix_len = 128;
-
-	ncopy = prefix_len / 32;
-	switch (ncop