Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * inet6 interface/address list definitions | |
3 | * Linux INET6 implementation | |
4 | * | |
5 | * Authors: | |
6 | * Pedro Roque <roque@di.fc.ul.pt> | |
7 | * | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License | |
11 | * as published by the Free Software Foundation; either version | |
12 | * 2 of the License, or (at your option) any later version. | |
13 | */ | |
14 | ||
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 | /* inet6_dev.if_flags */ | |
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 | |
3c21edbd | 27 | #define IF_READY 0x80000000 |
1da177e4 LT |
28 | |
29 | /* prefix flags */ | |
30 | #define IF_PREFIX_ONLINK 0x01 | |
31 | #define IF_PREFIX_AUTOCONF 0x02 | |
32 | ||
33 | #ifdef __KERNEL__ | |
34 | ||
e9d3e084 HX |
35 | enum { |
36 | INET6_IFADDR_STATE_DAD, | |
37 | INET6_IFADDR_STATE_POSTDAD, | |
38 | INET6_IFADDR_STATE_UP, | |
39 | INET6_IFADDR_STATE_DEAD, | |
40 | }; | |
41 | ||
fd2c3ef7 | 42 | struct inet6_ifaddr { |
1da177e4 LT |
43 | struct in6_addr addr; |
44 | __u32 prefix_len; | |
45 | ||
46 | __u32 valid_lft; | |
47 | __u32 prefered_lft; | |
1da177e4 LT |
48 | atomic_t refcnt; |
49 | spinlock_t lock; | |
e9d3e084 HX |
50 | spinlock_t state_lock; |
51 | ||
52 | int state; | |
1da177e4 LT |
53 | |
54 | __u8 probes; | |
55 | __u8 flags; | |
56 | ||
57 | __u16 scope; | |
58 | ||
04ec5cfc RK |
59 | unsigned long cstamp; /* created timestamp */ |
60 | unsigned long tstamp; /* updated timestamp */ | |
61 | ||
1da177e4 LT |
62 | struct timer_list timer; |
63 | ||
64 | struct inet6_dev *idev; | |
65 | struct rt6_info *rt; | |
66 | ||
c2e21293 | 67 | struct hlist_node addr_lst; |
502a2ffd | 68 | struct list_head if_list; |
1da177e4 LT |
69 | |
70 | #ifdef CONFIG_IPV6_PRIVACY | |
372e6c8f | 71 | struct list_head tmp_list; |
1da177e4 LT |
72 | struct inet6_ifaddr *ifpub; |
73 | int regen_count; | |
74 | #endif | |
5c578aed | 75 | struct rcu_head rcu; |
1da177e4 LT |
76 | }; |
77 | ||
fd2c3ef7 | 78 | struct ip6_sf_socklist { |
1da177e4 LT |
79 | unsigned int sl_max; |
80 | unsigned int sl_count; | |
81 | struct in6_addr sl_addr[0]; | |
82 | }; | |
83 | ||
84 | #define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \ | |
85 | (count) * sizeof(struct in6_addr)) | |
86 | ||
87 | #define IP6_SFBLOCK 10 /* allocate this many at once */ | |
88 | ||
fd2c3ef7 | 89 | struct ipv6_mc_socklist { |
1da177e4 LT |
90 | struct in6_addr addr; |
91 | int ifindex; | |
456b61bc | 92 | struct ipv6_mc_socklist __rcu *next; |
5ab4a6c8 | 93 | rwlock_t sflock; |
1da177e4 LT |
94 | unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ |
95 | struct ip6_sf_socklist *sflist; | |
456b61bc | 96 | struct rcu_head rcu; |
1da177e4 LT |
97 | }; |
98 | ||
fd2c3ef7 | 99 | struct ip6_sf_list { |
1da177e4 LT |
100 | struct ip6_sf_list *sf_next; |
101 | struct in6_addr sf_addr; | |
102 | unsigned long sf_count[2]; /* include/exclude counts */ | |
103 | unsigned char sf_gsresp; /* include in g & s response? */ | |
104 | unsigned char sf_oldin; /* change state */ | |
105 | unsigned char sf_crcount; /* retrans. left to send */ | |
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 | ||
fd2c3ef7 | 114 | struct ifmcaddr6 { |
1da177e4 LT |
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; | |
246f19d1 | 121 | unsigned char mca_crcount; |
1da177e4 LT |
122 | unsigned long mca_sfcount[2]; |
123 | struct timer_list mca_timer; | |
124 | unsigned mca_flags; | |
125 | int mca_users; | |
126 | atomic_t mca_refcnt; | |
127 | spinlock_t mca_lock; | |
1da177e4 LT |
128 | unsigned long mca_cstamp; |
129 | unsigned long mca_tstamp; | |
130 | }; | |
131 | ||
132 | /* Anycast stuff */ | |
133 | ||
fd2c3ef7 | 134 | struct ipv6_ac_socklist { |
1da177e4 LT |
135 | struct in6_addr acl_addr; |
136 | int acl_ifindex; | |
137 | struct ipv6_ac_socklist *acl_next; | |
138 | }; | |
139 | ||
fd2c3ef7 | 140 | struct ifacaddr6 { |
1da177e4 LT |
141 | struct in6_addr aca_addr; |
142 | struct inet6_dev *aca_idev; | |
143 | struct rt6_info *aca_rt; | |
144 | struct ifacaddr6 *aca_next; | |
145 | int aca_users; | |
146 | atomic_t aca_refcnt; | |
147 | spinlock_t aca_lock; | |
148 | unsigned long aca_cstamp; | |
149 | unsigned long aca_tstamp; | |
150 | }; | |
151 | ||
152 | #define IFA_HOST IPV6_ADDR_LOOPBACK | |
153 | #define IFA_LINK IPV6_ADDR_LINKLOCAL | |
154 | #define IFA_SITE IPV6_ADDR_SITELOCAL | |
1da177e4 LT |
155 | |
156 | struct ipv6_devstat { | |
157 | struct proc_dir_entry *proc_dir_entry; | |
a11d206d | 158 | DEFINE_SNMP_STAT(struct ipstats_mib, ipv6); |
1da177e4 | 159 | DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6); |
14878f75 | 160 | DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg); |
1da177e4 LT |
161 | }; |
162 | ||
fd2c3ef7 | 163 | struct inet6_dev { |
502a2ffd | 164 | struct net_device *dev; |
1da177e4 | 165 | |
502a2ffd | 166 | struct list_head addr_list; |
1da177e4 LT |
167 | |
168 | struct ifmcaddr6 *mc_list; | |
169 | struct ifmcaddr6 *mc_tomb; | |
6457d26b | 170 | spinlock_t mc_lock; |
1da177e4 LT |
171 | unsigned char mc_qrv; |
172 | unsigned char mc_gq_running; | |
173 | unsigned char mc_ifc_count; | |
4e7e5cfe ACM |
174 | unsigned long mc_v1_seen; |
175 | unsigned long mc_maxdelay; | |
1da177e4 LT |
176 | struct timer_list mc_gq_timer; /* general query timer */ |
177 | struct timer_list mc_ifc_timer; /* interface change timer */ | |
178 | ||
179 | struct ifacaddr6 *ac_list; | |
180 | rwlock_t lock; | |
181 | atomic_t refcnt; | |
182 | __u32 if_flags; | |
183 | int dead; | |
184 | ||
185 | #ifdef CONFIG_IPV6_PRIVACY | |
186 | u8 rndid[8]; | |
1da177e4 | 187 | struct timer_list regen_timer; |
372e6c8f | 188 | struct list_head tempaddr_list; |
1da177e4 LT |
189 | #endif |
190 | ||
191 | struct neigh_parms *nd_parms; | |
192 | struct inet6_dev *next; | |
193 | struct ipv6_devconf cnf; | |
194 | struct ipv6_devstat stats; | |
195 | unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ | |
8814c4b5 | 196 | struct rcu_head rcu; |
1da177e4 LT |
197 | }; |
198 | ||
1da177e4 LT |
199 | static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf) |
200 | { | |
201 | /* | |
202 | * +-------+-------+-------+-------+-------+-------+ | |
203 | * | 33 | 33 | DST13 | DST14 | DST15 | DST16 | | |
204 | * +-------+-------+-------+-------+-------+-------+ | |
205 | */ | |
206 | ||
207 | buf[0]= 0x33; | |
208 | buf[1]= 0x33; | |
209 | ||
210 | memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32)); | |
211 | } | |
212 | ||
213 | static inline void ipv6_tr_mc_map(struct in6_addr *addr, char *buf) | |
214 | { | |
215 | /* All nodes FF01::1, FF02::1, FF02::1:FFxx:xxxx */ | |
216 | ||
217 | if (((addr->s6_addr[0] == 0xFF) && | |
218 | ((addr->s6_addr[1] == 0x01) || (addr->s6_addr[1] == 0x02)) && | |
219 | (addr->s6_addr16[1] == 0) && | |
220 | (addr->s6_addr32[1] == 0) && | |
221 | (addr->s6_addr32[2] == 0) && | |
222 | (addr->s6_addr16[6] == 0) && | |
223 | (addr->s6_addr[15] == 1)) || | |
224 | ((addr->s6_addr[0] == 0xFF) && | |
225 | (addr->s6_addr[1] == 0x02) && | |
226 | (addr->s6_addr16[1] == 0) && | |
227 | (addr->s6_addr32[1] == 0) && | |
228 | (addr->s6_addr16[4] == 0) && | |
229 | (addr->s6_addr[10] == 0) && | |
230 | (addr->s6_addr[11] == 1) && | |
231 | (addr->s6_addr[12] == 0xff))) | |
232 | { | |
233 | buf[0]=0xC0; | |
234 | buf[1]=0x00; | |
235 | buf[2]=0x01; | |
236 | buf[3]=0x00; | |
237 | buf[4]=0x00; | |
238 | buf[5]=0x00; | |
239 | /* All routers FF0x::2 */ | |
240 | } else if ((addr->s6_addr[0] ==0xff) && | |
241 | ((addr->s6_addr[1] & 0xF0) == 0) && | |
242 | (addr->s6_addr16[1] == 0) && | |
243 | (addr->s6_addr32[1] == 0) && | |
244 | (addr->s6_addr32[2] == 0) && | |
245 | (addr->s6_addr16[6] == 0) && | |
246 | (addr->s6_addr[15] == 2)) | |
247 | { | |
248 | buf[0]=0xC0; | |
249 | buf[1]=0x00; | |
250 | buf[2]=0x02; | |
251 | buf[3]=0x00; | |
252 | buf[4]=0x00; | |
253 | buf[5]=0x00; | |
254 | } else { | |
255 | unsigned char i ; | |
256 | ||
257 | i = addr->s6_addr[15] & 7 ; | |
258 | buf[0]=0xC0; | |
259 | buf[1]=0x00; | |
260 | buf[2]=0x00; | |
261 | buf[3]=0x01 << i ; | |
262 | buf[4]=0x00; | |
263 | buf[5]=0x00; | |
264 | } | |
265 | } | |
266 | ||
267 | static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf) | |
268 | { | |
269 | buf[0] = 0x00; | |
270 | } | |
271 | ||
a9e527e3 RM |
272 | static inline void ipv6_ib_mc_map(const struct in6_addr *addr, |
273 | const unsigned char *broadcast, char *buf) | |
1da177e4 | 274 | { |
a9e527e3 RM |
275 | unsigned char scope = broadcast[5] & 0xF; |
276 | ||
1da177e4 LT |
277 | buf[0] = 0; /* Reserved */ |
278 | buf[1] = 0xff; /* Multicast QPN */ | |
279 | buf[2] = 0xff; | |
280 | buf[3] = 0xff; | |
281 | buf[4] = 0xff; | |
a9e527e3 | 282 | buf[5] = 0x10 | scope; /* scope from broadcast address */ |
1da177e4 LT |
283 | buf[6] = 0x60; /* IPv6 signature */ |
284 | buf[7] = 0x1b; | |
a9e527e3 RM |
285 | buf[8] = broadcast[8]; /* P_Key */ |
286 | buf[9] = broadcast[9]; | |
1da177e4 LT |
287 | memcpy(buf + 10, addr->s6_addr + 6, 10); |
288 | } | |
289 | #endif | |
290 | #endif |