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10#ifndef _NET_IF_INET6_H
11#define _NET_IF_INET6_H
12
13#include <net/snmp.h>
14#include <linux/ipv6.h>
15#include <linux/refcount.h>
16
17
18
19#define IF_RA_OTHERCONF 0x80
20#define IF_RA_MANAGED 0x40
21#define IF_RA_RCVD 0x20
22#define IF_RS_SENT 0x10
23#define IF_READY 0x80000000
24
25
26#define IF_PREFIX_ONLINK 0x01
27#define IF_PREFIX_AUTOCONF 0x02
28
29enum {
30 INET6_IFADDR_STATE_PREDAD,
31 INET6_IFADDR_STATE_DAD,
32 INET6_IFADDR_STATE_POSTDAD,
33 INET6_IFADDR_STATE_ERRDAD,
34 INET6_IFADDR_STATE_DEAD,
35};
36
37struct inet6_ifaddr {
38 struct in6_addr addr;
39 __u32 prefix_len;
40 __u32 rt_priority;
41
42
43 __u32 valid_lft;
44 __u32 prefered_lft;
45 refcount_t refcnt;
46 spinlock_t lock;
47
48 int state;
49
50 __u32 flags;
51 __u8 dad_probes;
52 __u8 stable_privacy_retry;
53
54 __u16 scope;
55 __u64 dad_nonce;
56
57 unsigned long cstamp;
58 unsigned long tstamp;
59
60 struct delayed_work dad_work;
61
62 struct inet6_dev *idev;
63 struct fib6_info *rt;
64
65 struct hlist_node addr_lst;
66 struct list_head if_list;
67
68 struct list_head tmp_list;
69 struct inet6_ifaddr *ifpub;
70 int regen_count;
71
72 bool tokenized;
73
74 struct rcu_head rcu;
75 struct in6_addr peer_addr;
76};
77
78struct ip6_sf_socklist {
79 unsigned int sl_max;
80 unsigned int sl_count;
81 struct in6_addr sl_addr[];
82};
83
84#define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \
85 (count) * sizeof(struct in6_addr))
86
87#define IP6_SFBLOCK 10
88
89struct ipv6_mc_socklist {
90 struct in6_addr addr;
91 int ifindex;
92 unsigned int sfmode;
93 struct ipv6_mc_socklist __rcu *next;
94 rwlock_t sflock;
95 struct ip6_sf_socklist *sflist;
96 struct rcu_head rcu;
97};
98
99struct ip6_sf_list {
100 struct ip6_sf_list *sf_next;
101 struct in6_addr sf_addr;
102 unsigned long sf_count[2];
103 unsigned char sf_gsresp;
104 unsigned char sf_oldin;
105 unsigned char sf_crcount;
106};
107
108#define MAF_TIMER_RUNNING 0x01
109#define MAF_LAST_REPORTER 0x02
110#define MAF_LOADED 0x04
111#define MAF_NOREPORT 0x08
112#define MAF_GSQUERY 0x10
113
114struct ifmcaddr6 {
115 struct in6_addr mca_addr;
116 struct inet6_dev *idev;
117 struct ifmcaddr6 *next;
118 struct ip6_sf_list *mca_sources;
119 struct ip6_sf_list *mca_tomb;
120 unsigned int mca_sfmode;
121 unsigned char mca_crcount;
122 unsigned long mca_sfcount[2];
123 struct timer_list mca_timer;
124 unsigned int mca_flags;
125 int mca_users;
126 refcount_t mca_refcnt;
127 spinlock_t mca_lock;
128 unsigned long mca_cstamp;
129 unsigned long mca_tstamp;
130};
131
132
133
134struct ipv6_ac_socklist {
135 struct in6_addr acl_addr;
136 int acl_ifindex;
137 struct ipv6_ac_socklist *acl_next;
138};
139
140struct ifacaddr6 {
141 struct in6_addr aca_addr;
142 struct fib6_info *aca_rt;
143 struct ifacaddr6 *aca_next;
144 struct hlist_node aca_addr_lst;
145 int aca_users;
146 refcount_t aca_refcnt;
147 unsigned long aca_cstamp;
148 unsigned long aca_tstamp;
149 struct rcu_head rcu;
150};
151
152#define IFA_HOST IPV6_ADDR_LOOPBACK
153#define IFA_LINK IPV6_ADDR_LINKLOCAL
154#define IFA_SITE IPV6_ADDR_SITELOCAL
155
156struct ipv6_devstat {
157 struct proc_dir_entry *proc_dir_entry;
158 DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
159 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev);
160 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev);
161};
162
163struct inet6_dev {
164 struct net_device *dev;
165
166 struct list_head addr_list;
167
168 struct ifmcaddr6 *mc_list;
169 struct ifmcaddr6 *mc_tomb;
170 spinlock_t mc_lock;
171
172 unsigned char mc_qrv;
173 unsigned char mc_gq_running;
174 unsigned char mc_ifc_count;
175 unsigned char mc_dad_count;
176
177 unsigned long mc_v1_seen;
178 unsigned long mc_qi;
179 unsigned long mc_qri;
180 unsigned long mc_maxdelay;
181
182 struct timer_list mc_gq_timer;
183 struct timer_list mc_ifc_timer;
184 struct timer_list mc_dad_timer;
185
186 struct ifacaddr6 *ac_list;
187 rwlock_t lock;
188 refcount_t refcnt;
189 __u32 if_flags;
190 int dead;
191
192 u32 desync_factor;
193 struct list_head tempaddr_list;
194
195 struct in6_addr token;
196
197 struct neigh_parms *nd_parms;
198 struct ipv6_devconf cnf;
199 struct ipv6_devstat stats;
200
201 struct timer_list rs_timer;
202 __s32 rs_interval;
203 __u8 rs_probes;
204
205 unsigned long tstamp;
206 struct rcu_head rcu;
207};
208
209static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf)
210{
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216
217 buf[0]= 0x33;
218 buf[1]= 0x33;
219
220 memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
221}
222
223static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf)
224{
225 buf[0] = 0x00;
226}
227
228static inline void ipv6_ib_mc_map(const struct in6_addr *addr,
229 const unsigned char *broadcast, char *buf)
230{
231 unsigned char scope = broadcast[5] & 0xF;
232
233 buf[0] = 0;
234 buf[1] = 0xff;
235 buf[2] = 0xff;
236 buf[3] = 0xff;
237 buf[4] = 0xff;
238 buf[5] = 0x10 | scope;
239 buf[6] = 0x60;
240 buf[7] = 0x1b;
241 buf[8] = broadcast[8];
242 buf[9] = broadcast[9];
243 memcpy(buf + 10, addr->s6_addr + 6, 10);
244}
245
246static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr,
247 const unsigned char *broadcast, char *buf)
248{
249 if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) {
250 memcpy(buf, broadcast, 4);
251 } else {
252
253 if ((addr->s6_addr32[0] | addr->s6_addr32[1] |
254 (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0)
255 return -EINVAL;
256 memcpy(buf, &addr->s6_addr32[3], 4);
257 }
258 return 0;
259}
260
261#endif
262
