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-rw-r--r--include/net/addrconf.h136
1 files changed, 136 insertions, 0 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
new file mode 100644
index 000000000..03f9982bd
--- /dev/null
+++ b/include/net/addrconf.h
@@ -0,0 +1,136 @@
+#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 int addrconf_get_ifindex(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