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15#ifndef _NET_IF_INET6_H
16#define _NET_IF_INET6_H
17
18#include <net/snmp.h>
19#include <linux/ipv6.h>
20
21
22
23#define IF_RA_OTHERCONF 0x80
24#define IF_RA_MANAGED 0x40
25#define IF_RA_RCVD 0x20
26#define IF_RS_SENT 0x10
27#define IF_READY 0x80000000
28
29
30#define IF_PREFIX_ONLINK 0x01
31#define IF_PREFIX_AUTOCONF 0x02
32
33enum {
34 INET6_IFADDR_STATE_DAD,
35 INET6_IFADDR_STATE_POSTDAD,
36 INET6_IFADDR_STATE_UP,
37 INET6_IFADDR_STATE_DEAD,
38};
39
40struct inet6_ifaddr {
41 struct in6_addr addr;
42 __u32 prefix_len;
43
44
45 __u32 valid_lft;
46 __u32 prefered_lft;
47 atomic_t refcnt;
48 spinlock_t lock;
49 spinlock_t state_lock;
50
51 int state;
52
53 __u8 probes;
54 __u8 flags;
55
56 __u16 scope;
57
58 unsigned long cstamp;
59 unsigned long tstamp;
60
61 struct timer_list timer;
62
63 struct inet6_dev *idev;
64 struct rt6_info *rt;
65
66 struct hlist_node addr_lst;
67 struct list_head if_list;
68
69#ifdef CONFIG_IPV6_PRIVACY
70 struct list_head tmp_list;
71 struct inet6_ifaddr *ifpub;
72 int regen_count;
73#endif
74 struct rcu_head rcu;
75};
76
77struct ip6_sf_socklist {
78 unsigned int sl_max;
79 unsigned int sl_count;
80 struct in6_addr sl_addr[0];
81};
82
83#define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \
84 (count) * sizeof(struct in6_addr))
85
86#define IP6_SFBLOCK 10
87
88struct ipv6_mc_socklist {
89 struct in6_addr addr;
90 int ifindex;
91 struct ipv6_mc_socklist __rcu *next;
92 rwlock_t sflock;
93 unsigned int sfmode;
94 struct ip6_sf_socklist *sflist;
95 struct rcu_head rcu;
96};
97
98struct ip6_sf_list {
99 struct ip6_sf_list *sf_next;
100 struct in6_addr sf_addr;
101 unsigned long sf_count[2];
102 unsigned char sf_gsresp;
103 unsigned char sf_oldin;
104 unsigned char sf_crcount;
105};
106
107#define MAF_TIMER_RUNNING 0x01
108#define MAF_LAST_REPORTER 0x02
109#define MAF_LOADED 0x04
110#define MAF_NOREPORT 0x08
111#define MAF_GSQUERY 0x10
112
113struct ifmcaddr6 {
114 struct in6_addr mca_addr;
115 struct inet6_dev *idev;
116 struct ifmcaddr6 *next;
117 struct ip6_sf_list *mca_sources;
118 struct ip6_sf_list *mca_tomb;
119 unsigned int mca_sfmode;
120 unsigned char mca_crcount;
121 unsigned long mca_sfcount[2];
122 struct timer_list mca_timer;
123 unsigned mca_flags;
124 int mca_users;
125 atomic_t mca_refcnt;
126 spinlock_t mca_lock;
127 unsigned long mca_cstamp;
128 unsigned long mca_tstamp;
129};
130
131
132
133struct ipv6_ac_socklist {
134 struct in6_addr acl_addr;
135 int acl_ifindex;
136 struct ipv6_ac_socklist *acl_next;
137};
138
139struct ifacaddr6 {
140 struct in6_addr aca_addr;
141 struct inet6_dev *aca_idev;
142 struct rt6_info *aca_rt;
143 struct ifacaddr6 *aca_next;
144 int aca_users;
145 atomic_t aca_refcnt;
146 spinlock_t aca_lock;
147 unsigned long aca_cstamp;
148 unsigned long aca_tstamp;
149};
150
151#define IFA_HOST IPV6_ADDR_LOOPBACK
152#define IFA_LINK IPV6_ADDR_LINKLOCAL
153#define IFA_SITE IPV6_ADDR_SITELOCAL
154
155struct ipv6_devstat {
156 struct proc_dir_entry *proc_dir_entry;
157 DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
158 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev);
159 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev);
160};
161
162struct inet6_dev {
163 struct net_device *dev;
164
165 struct list_head addr_list;
166
167 struct ifmcaddr6 *mc_list;
168 struct ifmcaddr6 *mc_tomb;
169 spinlock_t mc_lock;
170 unsigned char mc_qrv;
171 unsigned char mc_gq_running;
172 unsigned char mc_ifc_count;
173 unsigned long mc_v1_seen;
174 unsigned long mc_maxdelay;
175 struct timer_list mc_gq_timer;
176 struct timer_list mc_ifc_timer;
177
178 struct ifacaddr6 *ac_list;
179 rwlock_t lock;
180 atomic_t refcnt;
181 __u32 if_flags;
182 int dead;
183
184#ifdef CONFIG_IPV6_PRIVACY
185 u8 rndid[8];
186 struct timer_list regen_timer;
187 struct list_head tempaddr_list;
188#endif
189
190 struct neigh_parms *nd_parms;
191 struct inet6_dev *next;
192 struct ipv6_devconf cnf;
193 struct ipv6_devstat stats;
194 unsigned long tstamp;
195 struct rcu_head rcu;
196};
197
198static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf)
199{
200
201
202
203
204
205
206 buf[0]= 0x33;
207 buf[1]= 0x33;
208
209 memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
210}
211
212static inline void ipv6_tr_mc_map(const struct in6_addr *addr, char *buf)
213{
214
215
216 if (((addr->s6_addr[0] == 0xFF) &&
217 ((addr->s6_addr[1] == 0x01) || (addr->s6_addr[1] == 0x02)) &&
218 (addr->s6_addr16[1] == 0) &&
219 (addr->s6_addr32[1] == 0) &&
220 (addr->s6_addr32[2] == 0) &&
221 (addr->s6_addr16[6] == 0) &&
222 (addr->s6_addr[15] == 1)) ||
223 ((addr->s6_addr[0] == 0xFF) &&
224 (addr->s6_addr[1] == 0x02) &&
225 (addr->s6_addr16[1] == 0) &&
226 (addr->s6_addr32[1] == 0) &&
227 (addr->s6_addr16[4] == 0) &&
228 (addr->s6_addr[10] == 0) &&
229 (addr->s6_addr[11] == 1) &&
230 (addr->s6_addr[12] == 0xff)))
231 {
232 buf[0]=0xC0;
233 buf[1]=0x00;
234 buf[2]=0x01;
235 buf[3]=0x00;
236 buf[4]=0x00;
237 buf[5]=0x00;
238
239 } else if ((addr->s6_addr[0] ==0xff) &&
240 ((addr->s6_addr[1] & 0xF0) == 0) &&
241 (addr->s6_addr16[1] == 0) &&
242 (addr->s6_addr32[1] == 0) &&
243 (addr->s6_addr32[2] == 0) &&
244 (addr->s6_addr16[6] == 0) &&
245 (addr->s6_addr[15] == 2))
246 {
247 buf[0]=0xC0;
248 buf[1]=0x00;
249 buf[2]=0x02;
250 buf[3]=0x00;
251 buf[4]=0x00;
252 buf[5]=0x00;
253 } else {
254 unsigned char i ;
255
256 i = addr->s6_addr[15] & 7 ;
257 buf[0]=0xC0;
258 buf[1]=0x00;
259 buf[2]=0x00;
260 buf[3]=0x01 << i ;
261 buf[4]=0x00;
262 buf[5]=0x00;
263 }
264}
265
266static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf)
267{
268 buf[0] = 0x00;
269}
270
271static inline void ipv6_ib_mc_map(const struct in6_addr *addr,
272 const unsigned char *broadcast, char *buf)
273{
274 unsigned char scope = broadcast[5] & 0xF;
275
276 buf[0] = 0;
277 buf[1] = 0xff;
278 buf[2] = 0xff;
279 buf[3] = 0xff;
280 buf[4] = 0xff;
281 buf[5] = 0x10 | scope;
282 buf[6] = 0x60;
283 buf[7] = 0x1b;
284 buf[8] = broadcast[8];
285 buf[9] = broadcast[9];
286 memcpy(buf + 10, addr->s6_addr + 6, 10);
287}
288
289static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr,
290 const unsigned char *broadcast, char *buf)
291{
292 if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) {
293 memcpy(buf, broadcast, 4);
294 } else {
295
296 if ((addr->s6_addr32[0] | addr->s6_addr32[1] |
297 (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0)
298 return -EINVAL;
299 memcpy(buf, &addr->s6_addr32[3], 4);
300 }
301 return 0;
302}
303
304#endif
305
