2 * inet6 interface/address list definitions
3 * Linux INET6 implementation
6 * Pedro Roque <roque@di.fc.ul.pt>
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.
15 #ifndef _NET_IF_INET6_H
16 #define _NET_IF_INET6_H
19 #include <linux/ipv6.h>
21 /* inet6_dev.if_flags */
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
30 #define IF_PREFIX_ONLINK 0x01
31 #define IF_PREFIX_AUTOCONF 0x02
34 INET6_IFADDR_STATE_DAD,
35 INET6_IFADDR_STATE_POSTDAD,
36 INET6_IFADDR_STATE_UP,
37 INET6_IFADDR_STATE_DEAD,
44 /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */
49 spinlock_t state_lock;
58 unsigned long cstamp; /* created timestamp */
59 unsigned long tstamp; /* updated timestamp */
61 struct timer_list dad_timer;
63 struct inet6_dev *idev;
66 struct hlist_node addr_lst;
67 struct list_head if_list;
69 struct list_head tmp_list;
70 struct inet6_ifaddr *ifpub;
76 struct in6_addr peer_addr;
79 struct ip6_sf_socklist {
81 unsigned int sl_count;
82 struct in6_addr sl_addr[0];
85 #define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \
86 (count) * sizeof(struct in6_addr))
88 #define IP6_SFBLOCK 10 /* allocate this many at once */
90 struct ipv6_mc_socklist {
93 struct ipv6_mc_socklist __rcu *next;
95 unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */
96 struct ip6_sf_socklist *sflist;
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 */
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
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;
122 unsigned char mca_crcount;
123 unsigned long mca_sfcount[2];
124 struct timer_list mca_timer;
125 unsigned int mca_flags;
129 unsigned long mca_cstamp;
130 unsigned long mca_tstamp;
135 struct ipv6_ac_socklist {
136 struct in6_addr acl_addr;
138 struct ipv6_ac_socklist *acl_next;
142 struct in6_addr aca_addr;
143 struct inet6_dev *aca_idev;
144 struct rt6_info *aca_rt;
145 struct ifacaddr6 *aca_next;
149 unsigned long aca_cstamp;
150 unsigned long aca_tstamp;
153 #define IFA_HOST IPV6_ADDR_LOOPBACK
154 #define IFA_LINK IPV6_ADDR_LINKLOCAL
155 #define IFA_SITE IPV6_ADDR_SITELOCAL
157 struct ipv6_devstat {
158 struct proc_dir_entry *proc_dir_entry;
159 DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
160 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev);
161 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev);
165 struct net_device *dev;
167 struct list_head addr_list;
169 struct ifmcaddr6 *mc_list;
170 struct ifmcaddr6 *mc_tomb;
173 unsigned char mc_qrv; /* Query Robustness Variable */
174 unsigned char mc_gq_running;
175 unsigned char mc_ifc_count;
176 unsigned char mc_dad_count;
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 */
181 unsigned long mc_maxdelay;
183 struct timer_list mc_gq_timer; /* general query timer */
184 struct timer_list mc_ifc_timer; /* interface change timer */
185 struct timer_list mc_dad_timer; /* dad complete mc timer */
187 struct ifacaddr6 *ac_list;
194 struct timer_list regen_timer;
195 struct list_head tempaddr_list;
197 struct in6_addr token;
199 struct neigh_parms *nd_parms;
200 struct ipv6_devconf cnf;
201 struct ipv6_devstat stats;
203 struct timer_list rs_timer;
206 unsigned long tstamp; /* ipv6InterfaceTable update timestamp */
210 static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf)
213 * +-------+-------+-------+-------+-------+-------+
214 * | 33 | 33 | DST13 | DST14 | DST15 | DST16 |
215 * +-------+-------+-------+-------+-------+-------+
221 memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
224 static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf)
229 static inline void ipv6_ib_mc_map(const struct in6_addr *addr,
230 const unsigned char *broadcast, char *buf)
232 unsigned char scope = broadcast[5] & 0xF;
234 buf[0] = 0; /* Reserved */
235 buf[1] = 0xff; /* Multicast QPN */
239 buf[5] = 0x10 | scope; /* scope from broadcast address */
240 buf[6] = 0x60; /* IPv6 signature */
242 buf[8] = broadcast[8]; /* P_Key */
243 buf[9] = broadcast[9];
244 memcpy(buf + 10, addr->s6_addr + 6, 10);
247 static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr,
248 const unsigned char *broadcast, char *buf)
250 if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) {
251 memcpy(buf, broadcast, 4);
254 if ((addr->s6_addr32[0] | addr->s6_addr32[1] |
255 (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0)
257 memcpy(buf, &addr->s6_addr32[3], 4);