projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[NETNS][IPV6]: inet6_addr - ipv6_get_ifaddr namespace aware
[GitHub/mt8127/android_kernel_alcatel_ttab.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
c7dc89c0 20#include <linux/in.h>
6a800d45
PM		 21#include <linux/in6.h>
22
1da177e4
LT		 23struct prefix_info {
24 __u8 type;
25 __u8 length;
26 __u8 prefix_len;
27
28#if defined(__BIG_ENDIAN_BITFIELD)
29 __u8 onlink : 1,
30 autoconf : 1,
31 reserved : 6;
32#elif defined(__LITTLE_ENDIAN_BITFIELD)
33 __u8 reserved : 6,
34 autoconf : 1,
35 onlink : 1;
36#else
37#error "Please fix <asm/byteorder.h>"
38#endif
e69a4adc
AV		 39 __be32 valid;
40 __be32 prefered;
41 __be32 reserved2;
1da177e4
LT		 42
43 struct in6_addr prefix;
44};
45
46
47#ifdef __KERNEL__
48
1da177e4
LT		 49#include <linux/netdevice.h>
50#include <net/if_inet6.h>
e4553edd 51#include <net/ipv6.h>
1da177e4
LT		 52
53#define IN6_ADDR_HSIZE 16
54
55extern int addrconf_init(void);
56extern void addrconf_cleanup(void);
57
58extern int addrconf_add_ifaddr(void __user *arg);
59extern int addrconf_del_ifaddr(void __user *arg);
60extern int addrconf_set_dstaddr(void __user *arg);
61
bfeade08
DL		 62extern int ipv6_chk_addr(struct net *net,
63 struct in6_addr *addr,
1da177e4
LT		 64 struct net_device *dev,
65 int strict);
bfeade08 66
59fbb3a6 67#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
3b9f9a1c 68extern int ipv6_chk_home_addr(struct in6_addr *addr);
65d4ed92 69#endif
1cab3da6
DL		 70extern struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net,
71 struct in6_addr *addr,
72 struct net_device *dev,
73 int strict);
74
1da177e4
LT		 75extern int ipv6_get_saddr(struct dst_entry *dst,
76 struct in6_addr *daddr,
77 struct in6_addr *saddr);
78extern int ipv6_dev_get_saddr(struct net_device *dev,
79 struct in6_addr *daddr,
80 struct in6_addr *saddr);
95c385b4
NH		 81extern int ipv6_get_lladdr(struct net_device *dev,
82 struct in6_addr *addr,
83 unsigned char banned_flags);
1da177e4
LT		 84extern int ipv6_rcv_saddr_equal(const struct sock *sk,
85 const struct sock *sk2);
86extern void addrconf_join_solict(struct net_device *dev,
87 struct in6_addr *addr);
88extern void addrconf_leave_solict(struct inet6_dev *idev,
89 struct in6_addr *addr);
90
2a8cc6c8
YH		 91/*
92 * IPv6 Address Label subsystem (addrlabel.c)
93 */
94extern int ipv6_addr_label_init(void);
95extern void ipv6_addr_label_rtnl_register(void);
96extern u32 ipv6_addr_label(const struct in6_addr *addr,
97 int type, int ifindex);
98
1da177e4
LT		 99/*
100 * multicast prototypes (mcast.c)
101 */
102extern int ipv6_sock_mc_join(struct sock *sk, int ifindex,
103 struct in6_addr *addr);
104extern int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
105 struct in6_addr *addr);
106extern void ipv6_sock_mc_close(struct sock *sk);
107extern int inet6_mc_check(struct sock *sk, struct in6_addr *mc_addr,
108 struct in6_addr *src_addr);
109
110extern int ipv6_dev_mc_inc(struct net_device *dev, struct in6_addr *addr);
111extern int __ipv6_dev_mc_dec(struct inet6_dev *idev, struct in6_addr *addr);
112extern int ipv6_dev_mc_dec(struct net_device *dev, struct in6_addr *addr);
113extern void ipv6_mc_up(struct inet6_dev *idev);
114extern void ipv6_mc_down(struct inet6_dev *idev);
115extern void ipv6_mc_init_dev(struct inet6_dev *idev);
116extern void ipv6_mc_destroy_dev(struct inet6_dev *idev);
117extern void addrconf_dad_failure(struct inet6_ifaddr *ifp);
118
119extern int ipv6_chk_mcast_addr(struct net_device *dev, struct in6_addr *group,
120 struct in6_addr *src_addr);
121extern int ipv6_is_mld(struct sk_buff *skb, int nexthdr);
122
123extern void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len);
124
125extern int ipv6_get_hoplimit(struct net_device *dev);
126
127/*
128 * anycast prototypes (anycast.c)
129 */
130extern int ipv6_sock_ac_join(struct sock *sk,int ifindex,struct in6_addr *addr);
131extern int ipv6_sock_ac_drop(struct sock *sk,int ifindex,struct in6_addr *addr);
132extern void ipv6_sock_ac_close(struct sock *sk);
133extern int inet6_ac_check(struct sock *sk, struct in6_addr *addr, int ifindex);
134
135extern int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr);
136extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr);
137extern int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr);
138
139
140/* Device notifier */
141extern int register_inet6addr_notifier(struct notifier_block *nb);
142extern int unregister_inet6addr_notifier(struct notifier_block *nb);
143
144static inline struct inet6_dev *
145__in6_dev_get(struct net_device *dev)
146{
8814c4b5 147 return rcu_dereference(dev->ip6_ptr);
1da177e4
LT		 148}
149
1da177e4
LT		 150static inline struct inet6_dev *
151in6_dev_get(struct net_device *dev)
152{
153 struct inet6_dev *idev = NULL;
8814c4b5
YH		 154 rcu_read_lock();
155 idev = __in6_dev_get(dev);
1da177e4
LT		 156 if (idev)
157 atomic_inc(&idev->refcnt);
8814c4b5 158 rcu_read_unlock();
1da177e4
LT		 159 return idev;
160}
161
162extern void in6_dev_finish_destroy(struct inet6_dev *idev);
163
164static inline void
165in6_dev_put(struct inet6_dev *idev)
166{
167 if (atomic_dec_and_test(&idev->refcnt))
168 in6_dev_finish_destroy(idev);
169}
170
171#define __in6_dev_put(idev) atomic_dec(&(idev)->refcnt)
172#define in6_dev_hold(idev) atomic_inc(&(idev)->refcnt)
173
174
175extern void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp);
176
177static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
178{
179 if (atomic_dec_and_test(&ifp->refcnt))
180 inet6_ifa_finish_destroy(ifp);
181}
182
183#define __in6_ifa_put(ifp) atomic_dec(&(ifp)->refcnt)
184#define in6_ifa_hold(ifp) atomic_inc(&(ifp)->refcnt)
185
186
187extern void addrconf_forwarding_on(void);
188/*
189 * Hash function taken from net_alias.c
190 */
191
192static __inline__ u8 ipv6_addr_hash(const struct in6_addr *addr)
193{
194 __u32 word;
195
196 /*
197 * We perform the hash function over the last 64 bits of the address
198 * This will include the IEEE address token on links that support it.
199 */
200
e69a4adc 201 word = (__force u32)(addr->s6_addr32[2] ^ addr->s6_addr32[3]);
1da177e4
LT		 202 word ^= (word >> 16);
203 word ^= (word >> 8);
204
205 return ((word ^ (word >> 4)) & 0x0f);
206}
207
208/*
209 * compute link-local solicited-node multicast address
210 */
211
212static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
213 struct in6_addr *solicited)
214{
215 ipv6_addr_set(solicited,
216 __constant_htonl(0xFF020000), 0,
217 __constant_htonl(0x1),
218 __constant_htonl(0xFF000000) | addr->s6_addr32[3]);
219}
220
221
222static inline void ipv6_addr_all_nodes(struct in6_addr *addr)
223{
224 ipv6_addr_set(addr,
225 __constant_htonl(0xFF020000), 0, 0,
226 __constant_htonl(0x1));
227}
228
229static inline void ipv6_addr_all_routers(struct in6_addr *addr)
230{
231 ipv6_addr_set(addr,
232 __constant_htonl(0xFF020000), 0, 0,
233 __constant_htonl(0x2));
234}
235
236static inline int ipv6_addr_is_multicast(const struct in6_addr *addr)
237{
238 return (addr->s6_addr32[0] & __constant_htonl(0xFF000000)) == __constant_htonl(0xFF000000);
239}
240
241static inline int ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
242{
243 return (addr->s6_addr32[0] == htonl(0xff020000) &&
244 addr->s6_addr32[1] == 0 &&
245 addr->s6_addr32[2] == 0 &&
246 addr->s6_addr32[3] == htonl(0x00000001));
247}
248
249static inline int ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
250{
251 return (addr->s6_addr32[0] == htonl(0xff020000) &&
252 addr->s6_addr32[1] == 0 &&
253 addr->s6_addr32[2] == 0 &&
254 addr->s6_addr32[3] == htonl(0x00000002));
255}
256
c7dc89c0
FT		 257static inline int ipv6_isatap_eui64(u8 *eui, __be32 addr)
258{
3db8cda3
JP		 259 eui[0] = (ipv4_is_zeronet(addr) || ipv4_is_private_10(addr) ||
260 ipv4_is_loopback(addr) || ipv4_is_linklocal_169(addr) ||
261 ipv4_is_private_172(addr) || ipv4_is_test_192(addr) ||
262 ipv4_is_anycast_6to4(addr) || ipv4_is_private_192(addr) ||
263 ipv4_is_test_198(addr) || ipv4_is_multicast(addr) ||
264 ipv4_is_badclass(addr)) ? 0x00 : 0x02;
c7dc89c0
FT		 265 eui[1] = 0;
266 eui[2] = 0x5E;
267 eui[3] = 0xFE;
268 memcpy (eui+4, &addr, 4);
269 return 0;
270}
271
272static inline int ipv6_addr_is_isatap(const struct in6_addr *addr)
273{
274 return ((addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE));
275}
276
20380731
ACM		 277#ifdef CONFIG_PROC_FS
278extern int if6_proc_init(void);
279extern void if6_proc_exit(void);
280#endif
281
1da177e4
LT		 282#endif
283#endif
kernel source for telekom puls (alcatel/mediatek)