patch-2.1.8 linux/include/net/addrconf.h

• Lines: 136
• Date: Sun Nov 3 11:04:42 1996
• Orig file: v2.1.7/linux/include/net/addrconf.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v2.1.7/linux/include/net/addrconf.h linux/include/net/addrconf.h
@@ -0,0 +1,135 @@
+#ifndef _ADDRCONF_H
+#define _ADDRCONF_H
+
+#define RETRANS_TIMER	HZ
+
+#define MAX_RTR_SOLICITATIONS		3
+#define RTR_SOLICITATION_INTERVAL	(4*HZ)
+
+#define ADDR_CHECK_FREQUENCY		(120*HZ)
+
+struct prefix_info {
+	__u8			type;
+	__u8			length;
+	__u8			prefix_len;
+
+#if defined(__BIG_ENDIAN_BITFIELD)
+	__u8			onlink : 1,
+			 	autoconf : 1,
+				reserved : 6;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+	__u8			reserved : 6,
+				autoconf : 1,
+				onlink : 1;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+	__u32			valid;
+	__u32			prefered;
+	__u32			reserved2;
+
+	struct in6_addr		prefix;
+};
+
+
+#ifdef __KERNEL__
+
+#include <linux/in6.h>
+#include <linux/netdevice.h>
+#include <net/if_inet6.h>
+
+extern struct inet6_ifaddr	*inet6_addr_lst[16];
+extern struct ipv6_mc_list	*inet6_mcast_lst[16];
+extern struct inet6_dev		*inet6_dev_lst;
+
+extern void			addrconf_init(void);
+extern void			addrconf_cleanup(void);
+
+extern int		        addrconf_notify(struct notifier_block *this, 
+						unsigned long event, 
+						void * data);
+
+extern int			addrconf_add_ifaddr(void *arg);
+extern int			addrconf_set_dstaddr(void *arg);
+
+extern struct inet6_ifaddr *	ipv6_chk_addr(struct in6_addr *addr);
+extern struct inet6_ifaddr *	ipv6_get_saddr(struct rt6_info *rt, 
+					       struct in6_addr *daddr);
+extern struct inet6_ifaddr *	ipv6_get_lladdr(struct device *dev);
+
+/*
+ *	multicast prototypes (mcast.c)
+ */
+extern int			ipv6_sock_mc_join(struct sock *sk, 
+						  struct device *dev, 
+						  struct in6_addr *addr);
+extern int			ipv6_sock_mc_drop(struct sock *sk,
+						  struct device *dev, 
+						  struct in6_addr *addr);
+extern void			ipv6_sock_mc_close(struct sock *sk);
+
+extern int			ipv6_dev_mc_inc(struct device *dev,
+						struct in6_addr *addr);
+extern int			ipv6_dev_mc_dec(struct device *dev,
+						struct in6_addr *addr);
+
+extern int			ipv6_chk_mcast_addr(struct device *dev,
+						    struct in6_addr *addr);
+
+extern void			addrconf_prefix_rcv(struct device *dev,
+						    u8 *opt, int len);
+
+extern struct inet6_dev *	ipv6_dev_by_index(int index);
+extern struct inet6_dev *	ipv6_get_idev(struct device *dev);
+
+extern void			addrconf_forwarding_on(void);
+/*
+ *	Hash function taken from net_alias.c
+ */
+
+static __inline__ u8 ipv6_addr_hash(struct in6_addr *addr)
+{	
+	__u32 word;
+	unsigned tmp;
+
+	/* 
+	 * We perform the hash function over the last 64 bits of the address
+	 * This will include the IEEE address token on links that support it.
+	 */
+
+	word = addr->s6_addr[2] ^ addr->s6_addr32[3];
+	tmp  = word ^ (word>>16);
+	tmp ^= (tmp >> 8);
+
+	return ((tmp ^ (tmp >> 4)) & 0x0f);
+}
+
+/*
+ *	compute link-local solicited-node multicast address
+ */
+
+static __inline__ void addrconf_addr_solict_mult(struct in6_addr *addr,
+						 struct in6_addr *solicited)
+{
+	ipv6_addr_set(solicited,
+		      __constant_htonl(0xFF020000), 0,
+		      __constant_htonl(0x1), addr->s6_addr32[3]);
+}
+
+static __inline__ void ipv6_addr_all_nodes(struct in6_addr *addr)
+{
+	ipv6_addr_set(addr,
+		      __constant_htonl(0xFF020000), 0, 0,
+		      __constant_htonl(0x1));
+}
+
+static __inline__ void ipv6_addr_all_routers(struct in6_addr *addr)
+{
+	ipv6_addr_set(addr,
+		      __constant_htonl(0xFF020000), 0, 0,
+		      __constant_htonl(0x2));
+}
+
+
+#endif
+#endif