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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 | ||
fd2c3ef7 | 35 | struct inet6_ifaddr { |
1da177e4 LT |
36 | struct in6_addr addr; |
37 | __u32 prefix_len; | |
38 | ||
39 | __u32 valid_lft; | |
40 | __u32 prefered_lft; | |
1da177e4 LT |
41 | atomic_t refcnt; |
42 | spinlock_t lock; | |
43 | ||
44 | __u8 probes; | |
45 | __u8 flags; | |
46 | ||
47 | __u16 scope; | |
48 | ||
04ec5cfc RK |
49 | unsigned long cstamp; /* created timestamp */ |
50 | unsigned long tstamp; /* updated timestamp */ | |
51 | ||
1da177e4 LT |
52 | struct timer_list timer; |
53 | ||
54 | struct inet6_dev *idev; | |
55 | struct rt6_info *rt; | |
56 | ||
c2e21293 | 57 | struct hlist_node addr_lst; |
1da177e4 LT |
58 | struct inet6_ifaddr *if_next; /* next addr in inet6_dev */ |
59 | ||
60 | #ifdef CONFIG_IPV6_PRIVACY | |
372e6c8f | 61 | struct list_head tmp_list; |
1da177e4 LT |
62 | struct inet6_ifaddr *ifpub; |
63 | int regen_count; | |
64 | #endif | |
65 | ||
66 | int dead; | |
67 | }; | |
68 | ||
fd2c3ef7 | 69 | struct ip6_sf_socklist { |
1da177e4 LT |
70 | unsigned int sl_max; |
71 | unsigned int sl_count; | |
72 | struct in6_addr sl_addr[0]; | |
73 | }; | |
74 | ||
75 | #define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \ | |
76 | (count) * sizeof(struct in6_addr)) | |
77 | ||
78 | #define IP6_SFBLOCK 10 /* allocate this many at once */ | |
79 | ||
fd2c3ef7 | 80 | struct ipv6_mc_socklist { |
1da177e4 LT |
81 | struct in6_addr addr; |
82 | int ifindex; | |
83 | struct ipv6_mc_socklist *next; | |
5ab4a6c8 | 84 | rwlock_t sflock; |
1da177e4 LT |
85 | unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ |
86 | struct ip6_sf_socklist *sflist; | |
87 | }; | |
88 | ||
fd2c3ef7 | 89 | struct ip6_sf_list { |
1da177e4 LT |
90 | struct ip6_sf_list *sf_next; |
91 | struct in6_addr sf_addr; | |
92 | unsigned long sf_count[2]; /* include/exclude counts */ | |
93 | unsigned char sf_gsresp; /* include in g & s response? */ | |
94 | unsigned char sf_oldin; /* change state */ | |
95 | unsigned char sf_crcount; /* retrans. left to send */ | |
96 | }; | |
97 | ||
98 | #define MAF_TIMER_RUNNING 0x01 | |
99 | #define MAF_LAST_REPORTER 0x02 | |
100 | #define MAF_LOADED 0x04 | |
101 | #define MAF_NOREPORT 0x08 | |
102 | #define MAF_GSQUERY 0x10 | |
103 | ||
fd2c3ef7 | 104 | struct ifmcaddr6 { |
1da177e4 LT |
105 | struct in6_addr mca_addr; |
106 | struct inet6_dev *idev; | |
107 | struct ifmcaddr6 *next; | |
108 | struct ip6_sf_list *mca_sources; | |
109 | struct ip6_sf_list *mca_tomb; | |
110 | unsigned int mca_sfmode; | |
246f19d1 | 111 | unsigned char mca_crcount; |
1da177e4 LT |
112 | unsigned long mca_sfcount[2]; |
113 | struct timer_list mca_timer; | |
114 | unsigned mca_flags; | |
115 | int mca_users; | |
116 | atomic_t mca_refcnt; | |
117 | spinlock_t mca_lock; | |
1da177e4 LT |
118 | unsigned long mca_cstamp; |
119 | unsigned long mca_tstamp; | |
120 | }; | |
121 | ||
122 | /* Anycast stuff */ | |
123 | ||
fd2c3ef7 | 124 | struct ipv6_ac_socklist { |
1da177e4 LT |
125 | struct in6_addr acl_addr; |
126 | int acl_ifindex; | |
127 | struct ipv6_ac_socklist *acl_next; | |
128 | }; | |
129 | ||
fd2c3ef7 | 130 | struct ifacaddr6 { |
1da177e4 LT |
131 | struct in6_addr aca_addr; |
132 | struct inet6_dev *aca_idev; | |
133 | struct rt6_info *aca_rt; | |
134 | struct ifacaddr6 *aca_next; | |
135 | int aca_users; | |
136 | atomic_t aca_refcnt; | |
137 | spinlock_t aca_lock; | |
138 | unsigned long aca_cstamp; | |
139 | unsigned long aca_tstamp; | |
140 | }; | |
141 | ||
142 | #define IFA_HOST IPV6_ADDR_LOOPBACK | |
143 | #define IFA_LINK IPV6_ADDR_LINKLOCAL | |
144 | #define IFA_SITE IPV6_ADDR_SITELOCAL | |
1da177e4 LT |
145 | |
146 | struct ipv6_devstat { | |
147 | struct proc_dir_entry *proc_dir_entry; | |
a11d206d | 148 | DEFINE_SNMP_STAT(struct ipstats_mib, ipv6); |
1da177e4 | 149 | DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6); |
14878f75 | 150 | DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg); |
1da177e4 LT |
151 | }; |
152 | ||
fd2c3ef7 | 153 | struct inet6_dev { |
1da177e4 LT |
154 | struct net_device *dev; |
155 | ||
156 | struct inet6_ifaddr *addr_list; | |
157 | ||
158 | struct ifmcaddr6 *mc_list; | |
159 | struct ifmcaddr6 *mc_tomb; | |
6457d26b | 160 | spinlock_t mc_lock; |
1da177e4 LT |
161 | unsigned char mc_qrv; |
162 | unsigned char mc_gq_running; | |
163 | unsigned char mc_ifc_count; | |
4e7e5cfe ACM |
164 | unsigned long mc_v1_seen; |
165 | unsigned long mc_maxdelay; | |
1da177e4 LT |
166 | struct timer_list mc_gq_timer; /* general query timer */ |
167 | struct timer_list mc_ifc_timer; /* interface change timer */ | |
168 | ||
169 | struct ifacaddr6 *ac_list; | |
170 | rwlock_t lock; | |
171 | atomic_t refcnt; | |
172 | __u32 if_flags; | |
173 | int dead; | |
174 | ||
175 | #ifdef CONFIG_IPV6_PRIVACY | |
176 | u8 rndid[8]; | |
1da177e4 | 177 | struct timer_list regen_timer; |
372e6c8f | 178 | struct list_head tempaddr_list; |
1da177e4 LT |
179 | #endif |
180 | ||
181 | struct neigh_parms *nd_parms; | |
182 | struct inet6_dev *next; | |
183 | struct ipv6_devconf cnf; | |
184 | struct ipv6_devstat stats; | |
185 | unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ | |
8814c4b5 | 186 | struct rcu_head rcu; |
1da177e4 LT |
187 | }; |
188 | ||
1da177e4 LT |
189 | static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf) |
190 | { | |
191 | /* | |
192 | * +-------+-------+-------+-------+-------+-------+ | |
193 | * | 33 | 33 | DST13 | DST14 | DST15 | DST16 | | |
194 | * +-------+-------+-------+-------+-------+-------+ | |
195 | */ | |
196 | ||
197 | buf[0]= 0x33; | |
198 | buf[1]= 0x33; | |
199 | ||
200 | memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32)); | |
201 | } | |
202 | ||
203 | static inline void ipv6_tr_mc_map(struct in6_addr *addr, char *buf) | |
204 | { | |
205 | /* All nodes FF01::1, FF02::1, FF02::1:FFxx:xxxx */ | |
206 | ||
207 | if (((addr->s6_addr[0] == 0xFF) && | |
208 | ((addr->s6_addr[1] == 0x01) || (addr->s6_addr[1] == 0x02)) && | |
209 | (addr->s6_addr16[1] == 0) && | |
210 | (addr->s6_addr32[1] == 0) && | |
211 | (addr->s6_addr32[2] == 0) && | |
212 | (addr->s6_addr16[6] == 0) && | |
213 | (addr->s6_addr[15] == 1)) || | |
214 | ((addr->s6_addr[0] == 0xFF) && | |
215 | (addr->s6_addr[1] == 0x02) && | |
216 | (addr->s6_addr16[1] == 0) && | |
217 | (addr->s6_addr32[1] == 0) && | |
218 | (addr->s6_addr16[4] == 0) && | |
219 | (addr->s6_addr[10] == 0) && | |
220 | (addr->s6_addr[11] == 1) && | |
221 | (addr->s6_addr[12] == 0xff))) | |
222 | { | |
223 | buf[0]=0xC0; | |
224 | buf[1]=0x00; | |
225 | buf[2]=0x01; | |
226 | buf[3]=0x00; | |
227 | buf[4]=0x00; | |
228 | buf[5]=0x00; | |
229 | /* All routers FF0x::2 */ | |
230 | } else if ((addr->s6_addr[0] ==0xff) && | |
231 | ((addr->s6_addr[1] & 0xF0) == 0) && | |
232 | (addr->s6_addr16[1] == 0) && | |
233 | (addr->s6_addr32[1] == 0) && | |
234 | (addr->s6_addr32[2] == 0) && | |
235 | (addr->s6_addr16[6] == 0) && | |
236 | (addr->s6_addr[15] == 2)) | |
237 | { | |
238 | buf[0]=0xC0; | |
239 | buf[1]=0x00; | |
240 | buf[2]=0x02; | |
241 | buf[3]=0x00; | |
242 | buf[4]=0x00; | |
243 | buf[5]=0x00; | |
244 | } else { | |
245 | unsigned char i ; | |
246 | ||
247 | i = addr->s6_addr[15] & 7 ; | |
248 | buf[0]=0xC0; | |
249 | buf[1]=0x00; | |
250 | buf[2]=0x00; | |
251 | buf[3]=0x01 << i ; | |
252 | buf[4]=0x00; | |
253 | buf[5]=0x00; | |
254 | } | |
255 | } | |
256 | ||
257 | static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf) | |
258 | { | |
259 | buf[0] = 0x00; | |
260 | } | |
261 | ||
a9e527e3 RM |
262 | static inline void ipv6_ib_mc_map(const struct in6_addr *addr, |
263 | const unsigned char *broadcast, char *buf) | |
1da177e4 | 264 | { |
a9e527e3 RM |
265 | unsigned char scope = broadcast[5] & 0xF; |
266 | ||
1da177e4 LT |
267 | buf[0] = 0; /* Reserved */ |
268 | buf[1] = 0xff; /* Multicast QPN */ | |
269 | buf[2] = 0xff; | |
270 | buf[3] = 0xff; | |
271 | buf[4] = 0xff; | |
a9e527e3 | 272 | buf[5] = 0x10 | scope; /* scope from broadcast address */ |
1da177e4 LT |
273 | buf[6] = 0x60; /* IPv6 signature */ |
274 | buf[7] = 0x1b; | |
a9e527e3 RM |
275 | buf[8] = broadcast[8]; /* P_Key */ |
276 | buf[9] = broadcast[9]; | |
1da177e4 LT |
277 | memcpy(buf + 10, addr->s6_addr + 6, 10); |
278 | } | |
279 | #endif | |
280 | #endif |