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 | ||
e9d3e084 HX |
33 | enum { |
34 | INET6_IFADDR_STATE_DAD, | |
35 | INET6_IFADDR_STATE_POSTDAD, | |
36 | INET6_IFADDR_STATE_UP, | |
37 | INET6_IFADDR_STATE_DEAD, | |
38 | }; | |
39 | ||
fd2c3ef7 | 40 | struct inet6_ifaddr { |
1da177e4 LT |
41 | struct in6_addr addr; |
42 | __u32 prefix_len; | |
43 | ||
76f793e3 | 44 | /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */ |
1da177e4 LT |
45 | __u32 valid_lft; |
46 | __u32 prefered_lft; | |
1da177e4 LT |
47 | atomic_t refcnt; |
48 | spinlock_t lock; | |
e9d3e084 HX |
49 | spinlock_t state_lock; |
50 | ||
51 | int state; | |
1da177e4 | 52 | |
479840ff | 53 | __u32 flags; |
b7b1bfce | 54 | __u8 dad_probes; |
1da177e4 LT |
55 | |
56 | __u16 scope; | |
57 | ||
04ec5cfc RK |
58 | unsigned long cstamp; /* created timestamp */ |
59 | unsigned long tstamp; /* updated timestamp */ | |
60 | ||
b7b1bfce | 61 | struct timer_list dad_timer; |
1da177e4 LT |
62 | |
63 | struct inet6_dev *idev; | |
64 | struct rt6_info *rt; | |
65 | ||
c2e21293 | 66 | struct hlist_node addr_lst; |
502a2ffd | 67 | struct list_head if_list; |
1da177e4 | 68 | |
372e6c8f | 69 | struct list_head tmp_list; |
1da177e4 LT |
70 | struct inet6_ifaddr *ifpub; |
71 | int regen_count; | |
5d9efa7e | 72 | |
617fe29d DB |
73 | bool tokenized; |
74 | ||
5c578aed | 75 | struct rcu_head rcu; |
caeaba79 | 76 | struct in6_addr peer_addr; |
1da177e4 LT |
77 | }; |
78 | ||
fd2c3ef7 | 79 | struct ip6_sf_socklist { |
1da177e4 LT |
80 | unsigned int sl_max; |
81 | unsigned int sl_count; | |
82 | struct in6_addr sl_addr[0]; | |
83 | }; | |
84 | ||
85 | #define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \ | |
86 | (count) * sizeof(struct in6_addr)) | |
87 | ||
88 | #define IP6_SFBLOCK 10 /* allocate this many at once */ | |
89 | ||
fd2c3ef7 | 90 | struct ipv6_mc_socklist { |
1da177e4 LT |
91 | struct in6_addr addr; |
92 | int ifindex; | |
456b61bc | 93 | struct ipv6_mc_socklist __rcu *next; |
5ab4a6c8 | 94 | rwlock_t sflock; |
1da177e4 LT |
95 | unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ |
96 | struct ip6_sf_socklist *sflist; | |
456b61bc | 97 | struct rcu_head rcu; |
1da177e4 LT |
98 | }; |
99 | ||
fd2c3ef7 | 100 | struct ip6_sf_list { |
1da177e4 LT |
101 | struct ip6_sf_list *sf_next; |
102 | struct in6_addr sf_addr; | |
103 | unsigned long sf_count[2]; /* include/exclude counts */ | |
104 | unsigned char sf_gsresp; /* include in g & s response? */ | |
105 | unsigned char sf_oldin; /* change state */ | |
106 | unsigned char sf_crcount; /* retrans. left to send */ | |
107 | }; | |
108 | ||
109 | #define MAF_TIMER_RUNNING 0x01 | |
110 | #define MAF_LAST_REPORTER 0x02 | |
111 | #define MAF_LOADED 0x04 | |
112 | #define MAF_NOREPORT 0x08 | |
113 | #define MAF_GSQUERY 0x10 | |
114 | ||
fd2c3ef7 | 115 | struct ifmcaddr6 { |
1da177e4 LT |
116 | struct in6_addr mca_addr; |
117 | struct inet6_dev *idev; | |
118 | struct ifmcaddr6 *next; | |
119 | struct ip6_sf_list *mca_sources; | |
120 | struct ip6_sf_list *mca_tomb; | |
121 | unsigned int mca_sfmode; | |
246f19d1 | 122 | unsigned char mca_crcount; |
1da177e4 LT |
123 | unsigned long mca_sfcount[2]; |
124 | struct timer_list mca_timer; | |
95c96174 | 125 | unsigned int mca_flags; |
1da177e4 LT |
126 | int mca_users; |
127 | atomic_t mca_refcnt; | |
128 | spinlock_t mca_lock; | |
1da177e4 LT |
129 | unsigned long mca_cstamp; |
130 | unsigned long mca_tstamp; | |
131 | }; | |
132 | ||
133 | /* Anycast stuff */ | |
134 | ||
fd2c3ef7 | 135 | struct ipv6_ac_socklist { |
1da177e4 LT |
136 | struct in6_addr acl_addr; |
137 | int acl_ifindex; | |
138 | struct ipv6_ac_socklist *acl_next; | |
139 | }; | |
140 | ||
fd2c3ef7 | 141 | struct ifacaddr6 { |
1da177e4 LT |
142 | struct in6_addr aca_addr; |
143 | struct inet6_dev *aca_idev; | |
144 | struct rt6_info *aca_rt; | |
145 | struct ifacaddr6 *aca_next; | |
146 | int aca_users; | |
147 | atomic_t aca_refcnt; | |
148 | spinlock_t aca_lock; | |
149 | unsigned long aca_cstamp; | |
150 | unsigned long aca_tstamp; | |
151 | }; | |
152 | ||
153 | #define IFA_HOST IPV6_ADDR_LOOPBACK | |
154 | #define IFA_LINK IPV6_ADDR_LINKLOCAL | |
155 | #define IFA_SITE IPV6_ADDR_SITELOCAL | |
1da177e4 LT |
156 | |
157 | struct ipv6_devstat { | |
158 | struct proc_dir_entry *proc_dir_entry; | |
a11d206d | 159 | DEFINE_SNMP_STAT(struct ipstats_mib, ipv6); |
be281e55 ED |
160 | DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev); |
161 | DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev); | |
1da177e4 LT |
162 | }; |
163 | ||
fd2c3ef7 | 164 | struct inet6_dev { |
502a2ffd | 165 | struct net_device *dev; |
1da177e4 | 166 | |
502a2ffd | 167 | struct list_head addr_list; |
1da177e4 LT |
168 | |
169 | struct ifmcaddr6 *mc_list; | |
170 | struct ifmcaddr6 *mc_tomb; | |
6457d26b | 171 | spinlock_t mc_lock; |
89225d1c DB |
172 | |
173 | unsigned char mc_qrv; /* Query Robustness Variable */ | |
1da177e4 LT |
174 | unsigned char mc_gq_running; |
175 | unsigned char mc_ifc_count; | |
b173ee48 | 176 | unsigned char mc_dad_count; |
89225d1c DB |
177 | |
178 | unsigned long mc_v1_seen; /* Max time we stay in MLDv1 mode */ | |
179 | unsigned long mc_qi; /* Query Interval */ | |
180 | unsigned long mc_qri; /* Query Response Interval */ | |
4e7e5cfe | 181 | unsigned long mc_maxdelay; |
89225d1c | 182 | |
1da177e4 LT |
183 | struct timer_list mc_gq_timer; /* general query timer */ |
184 | struct timer_list mc_ifc_timer; /* interface change timer */ | |
b173ee48 | 185 | struct timer_list mc_dad_timer; /* dad complete mc timer */ |
1da177e4 LT |
186 | |
187 | struct ifacaddr6 *ac_list; | |
188 | rwlock_t lock; | |
189 | atomic_t refcnt; | |
190 | __u32 if_flags; | |
191 | int dead; | |
192 | ||
1da177e4 | 193 | u8 rndid[8]; |
1da177e4 | 194 | struct timer_list regen_timer; |
372e6c8f | 195 | struct list_head tempaddr_list; |
1da177e4 | 196 | |
f53adae4 DB |
197 | struct in6_addr token; |
198 | ||
1da177e4 | 199 | struct neigh_parms *nd_parms; |
1da177e4 LT |
200 | struct ipv6_devconf cnf; |
201 | struct ipv6_devstat stats; | |
b7b1bfce HFS |
202 | |
203 | struct timer_list rs_timer; | |
204 | __u8 rs_probes; | |
205 | ||
1da177e4 | 206 | unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ |
8814c4b5 | 207 | struct rcu_head rcu; |
1da177e4 LT |
208 | }; |
209 | ||
b71d1d42 | 210 | static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf) |
1da177e4 LT |
211 | { |
212 | /* | |
213 | * +-------+-------+-------+-------+-------+-------+ | |
214 | * | 33 | 33 | DST13 | DST14 | DST15 | DST16 | | |
215 | * +-------+-------+-------+-------+-------+-------+ | |
216 | */ | |
217 | ||
218 | buf[0]= 0x33; | |
219 | buf[1]= 0x33; | |
220 | ||
221 | memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32)); | |
222 | } | |
223 | ||
1da177e4 LT |
224 | static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf) |
225 | { | |
226 | buf[0] = 0x00; | |
227 | } | |
228 | ||
a9e527e3 RM |
229 | static inline void ipv6_ib_mc_map(const struct in6_addr *addr, |
230 | const unsigned char *broadcast, char *buf) | |
1da177e4 | 231 | { |
a9e527e3 RM |
232 | unsigned char scope = broadcast[5] & 0xF; |
233 | ||
1da177e4 LT |
234 | buf[0] = 0; /* Reserved */ |
235 | buf[1] = 0xff; /* Multicast QPN */ | |
236 | buf[2] = 0xff; | |
237 | buf[3] = 0xff; | |
238 | buf[4] = 0xff; | |
a9e527e3 | 239 | buf[5] = 0x10 | scope; /* scope from broadcast address */ |
1da177e4 LT |
240 | buf[6] = 0x60; /* IPv6 signature */ |
241 | buf[7] = 0x1b; | |
a9e527e3 RM |
242 | buf[8] = broadcast[8]; /* P_Key */ |
243 | buf[9] = broadcast[9]; | |
1da177e4 LT |
244 | memcpy(buf + 10, addr->s6_addr + 6, 10); |
245 | } | |
93ca3bb5 TT |
246 | |
247 | static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr, | |
248 | const unsigned char *broadcast, char *buf) | |
249 | { | |
250 | if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) { | |
251 | memcpy(buf, broadcast, 4); | |
252 | } else { | |
253 | /* v4mapped? */ | |
254 | if ((addr->s6_addr32[0] | addr->s6_addr32[1] | | |
255 | (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0) | |
256 | return -EINVAL; | |
257 | memcpy(buf, &addr->s6_addr32[3], 4); | |
258 | } | |
259 | return 0; | |
260 | } | |
261 | ||
1da177e4 | 262 | #endif |