mipv6-1.0-v2.4.22.patch

mobile ipv6协议Linux实现源代码

+	if (o > 0) 
+		res = memcmp(&p1->s6_addr[0], &p2->s6_addr[0], o);
+	if (res == 0 && b > 0) {
+		__u8 m = (0xff00 >> b) & 0xff;
+		res = (p1->s6_addr[o] & m) - (p2->s6_addr[o] & m);  
+	}
+	return res;
 }
 
 /*
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/include/net/ipv6_tunnel.h devel/include/net/ipv6_tunnel.h
--- linux-2.4/include/net/ipv6_tunnel.h	Thu Jan  1 02:00:00 1970
+++ devel/include/net/ipv6_tunnel.h	Thu Oct  2 13:41:35 2003
@@ -0,0 +1,92 @@
+/*
+ * $Id: s.ipv6_tunnel.h 1.11 03/09/22 16:45:03+03:00 [e-mail] $
+ */
+
+#ifndef _NET_IPV6_TUNNEL_H
+#define _NET_IPV6_TUNNEL_H
+
+#include <linux/ipv6.h>
+#include <linux/netdevice.h>
+#include <linux/ipv6_tunnel.h>
+#include <linux/skbuff.h>
+#include <asm/atomic.h>
+
+/* capable of sending packets */
+#define IP6_TNL_F_CAP_XMIT 0x10000
+/* capable of receiving packets */
+#define IP6_TNL_F_CAP_RCV 0x20000
+
+#define IP6_TNL_MAX 128
+
+/* IPv6 tunnel */
+
+struct ip6_tnl {
+	struct ip6_tnl *next;	/* next tunnel in list */
+	struct net_device *dev;	/* virtual device associated with tunnel */
+	struct net_device_stats stat;	/* statistics for tunnel device */
+	int recursion;		/* depth of hard_start_xmit recursion */
+	struct ip6_tnl_parm parms;	/* tunnel configuration paramters */
+	struct flowi fl;	/* flowi template for xmit */
+	atomic_t refcnt;        /* nr of identical tunnels used by kernel */
+	struct socket *sock;
+};
+
+#define IP6_TNL_PRE_ENCAP 0
+#define IP6_TNL_PRE_DECAP 1
+#define IP6_TNL_MAXHOOKS 2
+
+#define IP6_TNL_DROP 0
+#define IP6_TNL_ACCEPT 1
+
+typedef int ip6_tnl_hookfn(struct ip6_tnl *t, struct sk_buff *skb);
+
+struct ip6_tnl_hook_ops {
+	struct list_head list;
+	unsigned int hooknum;
+	int priority;
+	ip6_tnl_hookfn *hook;
+};
+
+enum ip6_tnl_hook_priorities {
+	IP6_TNL_PRI_FIRST = INT_MIN,
+	IP6_TNL_PRI_LAST = INT_MAX
+};
+
+/* Tunnel encapsulation limit destination sub-option */
+
+struct ipv6_tlv_tnl_enc_lim {
+	__u8 type;		/* type-code for option         */
+	__u8 length;		/* option length                */
+	__u8 encap_limit;	/* tunnel encapsulation limit   */
+} __attribute__ ((packed));
+
+#ifdef __KERNEL__
+extern int ip6ip6_tnl_create(struct ip6_tnl_parm *p, struct ip6_tnl **pt);
+
+extern struct ip6_tnl *ip6ip6_tnl_lookup(struct in6_addr *remote,
+					 struct in6_addr *local);
+
+void ip6ip6_tnl_change(struct ip6_tnl *t, struct ip6_tnl_parm *p);
+
+extern int ip6ip6_kernel_tnl_add(struct ip6_tnl_parm *p);
+
+extern int ip6ip6_kernel_tnl_del(struct ip6_tnl *t);
+
+extern unsigned int ip6ip6_tnl_inc_max_kdev_count(unsigned int n);
+
+extern unsigned int ip6ip6_tnl_dec_max_kdev_count(unsigned int n);
+
+extern unsigned int ip6ip6_tnl_inc_min_kdev_count(unsigned int n);
+
+extern unsigned int ip6ip6_tnl_dec_min_kdev_count(unsigned int n);
+
+extern void ip6ip6_tnl_register_hook(struct ip6_tnl_hook_ops *reg);
+
+extern void ip6ip6_tnl_unregister_hook(struct ip6_tnl_hook_ops *reg);
+
+#ifdef CONFIG_IPV6_TUNNEL
+extern int __init ip6_tunnel_init(void);
+extern void ip6_tunnel_cleanup(void);
+#endif
+#endif
+#endif
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/include/net/mipglue.h devel/include/net/mipglue.h
--- linux-2.4/include/net/mipglue.h	Thu Jan  1 02:00:00 1970
+++ devel/include/net/mipglue.h	Thu Oct  2 13:41:37 2003
@@ -0,0 +1,262 @@
+/*
+ *	Glue for Mobility support integration to IPv6
+ *
+ *	Authors:
+ *	Antti Tuominen		<[e-mail]>	
+ *
+ *	$Id: s.mipglue.h 1.40 03/09/18 15:59:41+03:00 [e-mail] $
+ *
+ *	This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ */
+
+#ifndef _NET_MIPGLUE_H
+#define _NET_MIPGLUE_H
+
+#ifndef USE_IPV6_MOBILITY
+#if defined(CONFIG_IPV6_MOBILITY) || defined(CONFIG_IPV6_MOBILITY_MODULE)
+#define USE_IPV6_MOBILITY
+#endif
+#endif
+
+/* symbols to indicate whether destination options received should take
+ * effect or not (see exthdrs.c, procrcv.c)
+ */
+#define MIPV6_DSTOPTS_ACCEPT 1
+#define MIPV6_DSTOPTS_DISCARD 0
+
+#define MIPV6_IGN_RTR 0
+#define MIPV6_ADD_RTR 1
+#define MIPV6_CHG_RTR 2
+
+/* MIPV6: Approximate maximum for mobile IPv6 options and headers */
+#define MIPV6_HEADERS 48
+
+#ifdef __KERNEL__
+#include <linux/sched.h>
+#include <linux/in6.h>
+#include <linux/socket.h>
+#include <linux/route.h>
+#include <linux/skbuff.h>
+
+#include <net/mipv6.h>
+#include <net/ipv6.h>
+#include <net/addrconf.h>
+
+#ifdef USE_IPV6_MOBILITY
+
+/* calls a procedure from mipv6-module */
+#define MIPV6_CALLPROC(X) if(mipv6_functions.X) mipv6_functions.X
+
+/* calls a function from mipv6-module, default-value if function not defined
+ */
+#define MIPV6_CALLFUNC(X,Y) (!mipv6_functions.X)?(Y):mipv6_functions.X
+
+/* sets a handler-function to process a call */
+#define MIPV6_SETCALL(X,Y) if(mipv6_functions.X) printk("mipv6: Warning, function assigned twice!\n"); \
+                           mipv6_functions.X = Y
+#define MIPV6_RESETCALL(X) mipv6_functions.X = NULL
+
+/* pointers to mipv6 callable functions */
+struct mipv6_callable_functions {
+	void (*mipv6_initialize_dstopt_rcv) (struct sk_buff *skb);
+	int (*mipv6_finalize_dstopt_rcv) (int process);
+	int (*mipv6_handle_homeaddr) (struct sk_buff *skb, int optoff);
+	int (*mipv6_ra_rcv) (struct sk_buff *skb);
+	void (*mipv6_icmp_rcv) (struct sk_buff *skb);
+	struct ipv6_txoptions * (*mipv6_modify_txoptions) (
+		struct sock *sk,
+		struct sk_buff *skb, 
+		struct ipv6_txoptions *opt,
+		struct flowi *fl,
+		struct dst_entry **dst);
+	void (*mipv6_set_home) (int ifindex, struct in6_addr *homeaddr, int plen,
+				struct in6_addr *homeagent, int plen2);
+	void (*mipv6_get_home_address) (struct inet6_ifaddr *ifp,
+					struct in6_addr *home_addr);
+	void (*mipv6_get_care_of_address)(struct in6_addr *homeaddr, 
+					  struct in6_addr *coa);
+	int (*mipv6_is_home_addr)(struct in6_addr *addr);
+	void (*mipv6_change_router)(void);
+	void (*mipv6_check_dad)(struct in6_addr *home_addr);      
+	void (*mipv6_icmp_handle_homeaddr)(struct sk_buff *skb);
+	int (*mipv6_forward)(struct sk_buff *skb);
+	int (*mipv6_mn_ha_probe)(struct inet6_ifaddr *ifp, u8 *lladdr);
+};
+
+extern struct mipv6_callable_functions mipv6_functions;
+
+extern void mipv6_invalidate_calls(void);
+
+extern int mipv6_handle_dstopt(struct sk_buff *skb, int optoff);
+
+static inline int
+ndisc_mip_mn_ha_probe(struct inet6_ifaddr *ifp, u8 *lladdr)
+{
+	return MIPV6_CALLFUNC(mipv6_mn_ha_probe, 0)(ifp, lladdr);
+}
+
+/* Must only be called for HA, no checks here */
+static inline int ip6_mipv6_forward(struct sk_buff *skb)
+{
+	return MIPV6_CALLFUNC(mipv6_forward, 0)(skb);
+}
+
+/* 
+ * Avoid adding new default routers if the old one is still in use 
+ */
+
+static inline  int ndisc_mipv6_ra_rcv(struct sk_buff *skb)
+{
+	return MIPV6_CALLFUNC(mipv6_ra_rcv, MIPV6_ADD_RTR)(skb);
+}
+
+static inline int ipv6_chk_mip_home_addr(struct in6_addr *addr)
+{
+	return MIPV6_CALLFUNC(mipv6_is_home_addr, 0)(addr);
+}
+
+static inline void ndisc_mipv6_change_router(int change_rtr)
+{
+	if (change_rtr == MIPV6_CHG_RTR)
+		MIPV6_CALLPROC(mipv6_change_router)();
+}
+
+static inline void ndisc_check_mipv6_dad(struct in6_addr *target)
+{
+	MIPV6_CALLPROC(mipv6_check_dad)(target);
+}
+
+static inline void icmpv6_handle_mipv6_homeaddr(struct sk_buff *skb)
+{
+	MIPV6_CALLPROC(mipv6_icmp_handle_homeaddr)(skb);
+}
+
+static inline void mipv6_icmp_rcv(struct sk_buff *skb)
+{
+	MIPV6_CALLPROC(mipv6_icmp_rcv)(skb);
+}
+
+static inline int tcp_v6_get_mipv6_header_len(void)
+{
+	return MIPV6_HEADERS;
+}
+
+static inline struct in6_addr *
+mipv6_get_fake_hdr_daddr(struct in6_addr *hdaddr, struct in6_addr *daddr)
+{
+	return daddr;
+}
+
+static inline void 
+addrconf_set_mipv6_mn_home(int ifindex, struct in6_addr *homeaddr, int plen,
+			   struct in6_addr *homeagent, int plen2)
+{
+	MIPV6_CALLPROC(mipv6_set_home)(ifindex, homeaddr, plen, homeagent, plen2);
+}
+
+static inline void addrconf_get_mipv6_home_address(struct inet6_ifaddr *ifp, 
+						   struct in6_addr *saddr)
+{
+	MIPV6_CALLPROC(mipv6_get_home_address)(ifp, saddr);
+}
+
+static inline struct ipv6_txoptions *
+ip6_add_mipv6_txoptions(struct sock *sk, struct sk_buff *skb, 
+			struct ipv6_txoptions *opt, struct flowi *fl,
+			struct dst_entry **dst)
+{
+	return MIPV6_CALLFUNC(mipv6_modify_txoptions, opt)(sk, skb, opt, fl, dst); 
+
+}
+
+static inline void
+ip6_mark_mipv6_packet(struct ipv6_txoptions *txopt, struct sk_buff *skb)
+{
+	struct inet6_skb_parm *opt;
+	if (txopt) {
+		opt = (struct inet6_skb_parm *)skb->cb;
+		opt->mipv6_flags = txopt->mipv6_flags;
+	}
+}
+
+static inline void 
+ip6_free_mipv6_txoptions(struct ipv6_txoptions *opt,
+			 struct ipv6_txoptions *orig_opt) 
+{
+	if (opt && opt != orig_opt)
+		kfree(opt);
+}
+
+#else /* USE_IPV6_MOBILITY */
+
+#define mipv6_handle_dstopt ip6_tlvopt_unknown
+
+static inline int
+ndisc_mip_mn_ha_probe(struct inet6_ifaddr *ifp, u8 *lladdr)
+{
+	return 0;
+}
+
+static inline int ip6_mipv6_forward(struct sk_buff *skb)
+{
+	return 0;
+}
+
+static inline int ndisc_mipv6_ra_rcv(struct sk_buff *skb)
+{
+	return MIPV6_ADD_RTR;
+}
+
+static inline int ipv6_chk_mip_home_addr(struct in6_addr *addr)
+{
+	return 0;
+}
+
+static inline void ndisc_mipv6_change_router(int change_rtr) {}
+
+static inline void ndisc_check_mipv6_dad(struct in6_addr *target) {}
+
+static inline void icmpv6_handle_mipv6_homeaddr(struct sk_buff *skb) {}
+
+static inline void mipv6_icmp_rcv(struct sk_buff *skb) {}
+
+static inline int tcp_v6_get_mipv6_header_len(void)
+{
+	return 0;
+}
+
+static inline struct in6_addr *
+mipv6_get_fake_hdr_daddr(struct in6_addr *hdaddr, struct in6_addr *daddr)
+{
+	return hdaddr;
+}
+
+static inline void 
+addrconf_set_mipv6_mn_home(int ifindex, struct in6_addr *homeaddr, int plen,
+			   struct in6_addr *homeagent, int plen2) {}
+
+static inline void addrconf_get_mipv6_home_address(struct inet6_ifaddr *ifp, 
+						   struct in6_addr *saddr) {}
+
+static inline struct ipv6_txoptions *
+ip6_add_mipv6_txoptions(struct sock *sk, struct sk_buff *skb,
+			struct ipv6_txoptions *opt, struct flowi *fl,
+			struct dst_entry **dst)
+{
+	return opt;
+}
+
+static inline void
+ip6_mark_mipv6_packet(struct ipv6_txoptions *txopt, struct sk_buff *skb) {}
+
+static inline void 
+ip6_free_mipv6_txoptions(struct ipv6_txoptions *opt, 
+			 struct ipv6_txoptions *orig_opt) {}
+
+#endif /* USE_IPV6_MOBILITY */
+#endif /* __KERNEL__ */
+#endif /* _NET_MIPGLUE_H */
diff -Nur --exclude=RCS --exclude=CVS --exclude=SCCS --exclude=BitKeeper --exclude=ChangeSet linux-2.4/include/net/mipv6.h devel/include/net/mipv6.h
--- linux-2.4/include/net/mipv6.h	Thu Jan  1 02:00:00 1970
+++ devel/include/net/mipv6.h	Mon Sep 29 16:54:17 2003
@@ -0,0 +1,258 @@
+/*
+ *	Mobile IPv6 header-file
+ *
+ *	Authors:
+ *	Sami Kivisaari		<[e-mail]>
+ *
+ *	$Id$
+ *
+ *	This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *