]> bbs.cooldavid.org Git - net-next-2.6.git/blame - include/net/addrconf.h
git://bbs.cooldavid.org / net-next-2.6.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[IPV6] MIP6: Kill unnecessary ifdefs.
[net-next-2.6.git] / include / net / addrconf.h
CommitLineData
1da177e4
LT		 1#ifndef _ADDRCONF_H
2#define _ADDRCONF_H
3
4#define RETRANS_TIMER HZ
5
6#define MAX_RTR_SOLICITATIONS 3
7#define RTR_SOLICITATION_INTERVAL (4*HZ)
8
9#define MIN_VALID_LIFETIME (2*3600) /* 2 hours */
10
11#define TEMP_VALID_LIFETIME (7*86400)
12#define TEMP_PREFERRED_LIFETIME (86400)
13#define REGEN_MAX_RETRY (5)
14#define MAX_DESYNC_FACTOR (600)
15
16#define ADDR_CHECK_FREQUENCY (120*HZ)
17
18#define IPV6_MAX_ADDRESSES 16
19
6a800d45
PM		 20#include <linux/in6.h>
21
1da177e4
LT		 22struct prefix_info {
23 __u8 type;
24 __u8 length;
25 __u8 prefix_len;
26
27#if defined(__BIG_ENDIAN_BITFIELD)
28 __u8 onlink : 1,
29 autoconf : 1,
30 reserved : 6;
31#elif defined(__LITTLE_ENDIAN_BITFIELD)
32 __u8 reserved : 6,
33 autoconf : 1,
34 onlink : 1;
35#else
36#error "Please fix <asm/byteorder.h>"
37#endif
e69a4adc
AV		 38 __be32 valid;
39 __be32 prefered;
40 __be32 reserved2;
1da177e4
LT		 41
42 struct in6_addr prefix;
43};
44
45
46#ifdef __KERNEL__
47
1da177e4
LT		 48#include <linux/netdevice.h>
49#include <net/if_inet6.h>
e4553edd 50#include <net/ipv6.h>
1da177e4
LT		 51
52#define IN6_ADDR_HSIZE 16
53
54extern int addrconf_init(void);
55extern void addrconf_cleanup(void);
56
57extern int addrconf_add_ifaddr(void __user *arg);
58extern int addrconf_del_ifaddr(void __user *arg);
59extern int addrconf_set_dstaddr(void __user *arg);
60
61extern int ipv6_chk_addr(struct in6_addr *addr,
62 struct net_device *dev,
63 int strict);
65d4ed92 64#ifdef CONFIG_IPV6_MIP6
3b9f9a1c 65extern int ipv6_chk_home_addr(struct in6_addr *addr);
65d4ed92 66#endif
1da177e4
LT		 67extern struct inet6_ifaddr * ipv6_get_ifaddr(struct in6_addr *addr,
68 struct net_device *dev,
69 int strict);
70extern int ipv6_get_saddr(struct dst_entry *dst,
71 struct in6_addr *daddr,
72 struct in6_addr *saddr);
73extern int ipv6_dev_get_saddr(struct net_device *dev,
74 struct in6_addr *daddr,
75 struct in6_addr *saddr);
95c385b4
NH		 76extern int ipv6_get_lladdr(struct net_device *dev,
77 struct in6_addr *addr,
78 unsigned char banned_flags);
1da177e4
LT		 79extern int ipv6_rcv_saddr_equal(const struct sock *sk,
80 const struct sock *sk2);
81extern void addrconf_join_solict(struct net_device *dev,
82 struct in6_addr *addr);
83extern void addrconf_leave_solict(struct inet6_dev *idev,
84 struct in6_addr *addr);
85
86/*
87 * multicast prototypes (mcast.c)
88 */
89extern int ipv6_sock_mc_join(struct sock *sk, int ifindex,
90 struct in6_addr *addr);
91extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
92 struct in6_addr *addr);
93extern void ipv6_sock_mc_close(struct sock *sk);
94extern int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,
95 struct in6_addr *src_addr);
96
97extern int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr);
98extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, struct in6_addr *addr);
99extern int ipv6_dev_mc_dec(struct net_device *dev, struct in6_addr *addr);
100extern void ipv6_mc_up(struct inet6_dev *idev);
101extern void ipv6_mc_down(struct inet6_dev *idev);
102extern void ipv6_mc_init_dev(struct inet6_dev *idev);
103extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
104extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
105
106extern int ipv6_chk_mcast_addr(struct net_device *dev, struct in6_addr *group,
107 struct in6_addr *src_addr);
108extern int ipv6_is_mld(struct sk_buff *skb, int nexthdr);
109
110extern void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len);
111
112extern int ipv6_get_hoplimit(struct net_device *dev);
113
114/*
115 * anycast prototypes (anycast.c)
116 */
117extern int ipv6_sock_ac_join(struct sock *sk,int ifindex,struct in6_addr *addr);
118extern int ipv6_sock_ac_drop(struct sock *sk,int ifindex,struct in6_addr *addr);
119extern void ipv6_sock_ac_close(struct sock *sk);
120extern int inet6_ac_check(struct sock *sk, struct in6_addr *addr, int ifindex);
121
122extern int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr);
123extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr);
124extern int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr);
125
126
127/* Device notifier */
128extern int register_inet6addr_notifier(struct notifier_block *nb);
129extern int unregister_inet6addr_notifier(struct notifier_block *nb);
130
131static inline struct inet6_dev *
132__in6_dev_get(struct net_device *dev)
133{
8814c4b5 134 return rcu_dereference(dev->ip6_ptr);
1da177e4
LT		 135}
136
1da177e4
LT		 137static inline struct inet6_dev *
138in6_dev_get(struct net_device *dev)
139{
140 struct inet6_dev *idev = NULL;
8814c4b5
YH		 141 rcu_read_lock();
142 idev = __in6_dev_get(dev);
1da177e4
LT		 143 if (idev)
144 atomic_inc(&idev->refcnt);
8814c4b5 145 rcu_read_unlock();
1da177e4
LT		 146 return idev;
147}
148
149extern void in6_dev_finish_destroy(struct inet6_dev *idev);
150
151static inline void
152in6_dev_put(struct inet6_dev *idev)
153{
154 if (atomic_dec_and_test(&idev->refcnt))
155 in6_dev_finish_destroy(idev);
156}
157
158#define __in6_dev_put(idev) atomic_dec(&(idev)->refcnt)
159#define in6_dev_hold(idev) atomic_inc(&(idev)->refcnt)
160
161
162extern void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp);
163
164static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
165{
166 if (atomic_dec_and_test(&ifp->refcnt))
167 inet6_ifa_finish_destroy(ifp);
168}
169
170#define __in6_ifa_put(ifp) atomic_dec(&(ifp)->refcnt)
171#define in6_ifa_hold(ifp) atomic_inc(&(ifp)->refcnt)
172
173
174extern void addrconf_forwarding_on(void);
175/*
176 * Hash function taken from net_alias.c
177 */
178
179static __inline__ u8 ipv6_addr_hash(const struct in6_addr *addr)
180{
181 __u32 word;
182
183 /*
184 * We perform the hash function over the last 64 bits of the address
185 * This will include the IEEE address token on links that support it.
186 */
187
e69a4adc 188 word = (__force u32)(addr->s6_addr32[2] ^ addr->s6_addr32[3]);
1da177e4
LT		 189 word ^= (word >> 16);
190 word ^= (word >> 8);
191
192 return ((word ^ (word >> 4)) & 0x0f);
193}
194
195/*
196 * compute link-local solicited-node multicast address
197 */
198
199static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
200 struct in6_addr *solicited)
201{
202 ipv6_addr_set(solicited,
203 __constant_htonl(0xFF020000), 0,
204 __constant_htonl(0x1),
205 __constant_htonl(0xFF000000) | addr->s6_addr32[3]);
206}
207
208
209static inline void ipv6_addr_all_nodes(struct in6_addr *addr)
210{
211 ipv6_addr_set(addr,
212 __constant_htonl(0xFF020000), 0, 0,
213 __constant_htonl(0x1));
214}
215
216static inline void ipv6_addr_all_routers(struct in6_addr *addr)
217{
218 ipv6_addr_set(addr,
219 __constant_htonl(0xFF020000), 0, 0,
220 __constant_htonl(0x2));
221}
222
223static inline int ipv6_addr_is_multicast(const struct in6_addr *addr)
224{
225 return (addr->s6_addr32[0] & __constant_htonl(0xFF000000)) == __constant_htonl(0xFF000000);
226}
227
228static inline int ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
229{
230 return (addr->s6_addr32[0] == htonl(0xff020000) &&
231 addr->s6_addr32[1] == 0 &&
232 addr->s6_addr32[2] == 0 &&
233 addr->s6_addr32[3] == htonl(0x00000001));
234}
235
236static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
237{
238 return (addr->s6_addr32[0] == htonl(0xff020000) &&
239 addr->s6_addr32[1] == 0 &&
240 addr->s6_addr32[2] == 0 &&
241 addr->s6_addr32[3] == htonl(0x00000002));
242}
243
20380731
ACM		 244#ifdef CONFIG_PROC_FS
245extern int if6_proc_init(void);
246extern void if6_proc_exit(void);
247#endif
248
1da177e4
LT		 249#endif
250#endif
Clone of davem's net-next-2.6 tree