1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * inet6 interface/address list definitions
4 * Linux INET6 implementation
7 * Pedro Roque <roque@di.fc.ul.pt>
10 #ifndef _NET_IF_INET6_H
11 #define _NET_IF_INET6_H
14 #include <linux/ipv6.h>
15 #include <linux/refcount.h>
17 /* inet6_dev.if_flags */
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
26 #define IF_PREFIX_ONLINK 0x01
27 #define IF_PREFIX_AUTOCONF 0x02
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
,
42 /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */
52 __u8 stable_privacy_retry
;
57 unsigned long cstamp
; /* created timestamp */
58 unsigned long tstamp
; /* updated timestamp */
60 struct delayed_work dad_work
;
62 struct inet6_dev
*idev
;
65 struct hlist_node addr_lst
;
66 struct list_head if_list
;
68 struct list_head tmp_list
;
69 struct inet6_ifaddr
*ifpub
;
75 struct in6_addr peer_addr
;
78 struct ip6_sf_socklist
{
80 unsigned int sl_count
;
82 struct in6_addr sl_addr
[];
85 #define IP6_SFBLOCK 10 /* allocate this many at once */
87 struct ipv6_mc_socklist
{
90 unsigned int sfmode
; /* MCAST_{INCLUDE,EXCLUDE} */
91 struct ipv6_mc_socklist __rcu
*next
;
92 struct ip6_sf_socklist __rcu
*sflist
;
97 struct ip6_sf_list __rcu
*sf_next
;
98 struct in6_addr sf_addr
;
99 unsigned long sf_count
[2]; /* include/exclude counts */
100 unsigned char sf_gsresp
; /* include in g & s response? */
101 unsigned char sf_oldin
; /* change state */
102 unsigned char sf_crcount
; /* retrans. left to send */
106 #define MAF_TIMER_RUNNING 0x01
107 #define MAF_LAST_REPORTER 0x02
108 #define MAF_LOADED 0x04
109 #define MAF_NOREPORT 0x08
110 #define MAF_GSQUERY 0x10
113 struct in6_addr mca_addr
;
114 struct inet6_dev
*idev
;
115 struct ifmcaddr6 __rcu
*next
;
116 struct ip6_sf_list __rcu
*mca_sources
;
117 struct ip6_sf_list __rcu
*mca_tomb
;
118 unsigned int mca_sfmode
;
119 unsigned char mca_crcount
;
120 unsigned long mca_sfcount
[2];
121 struct delayed_work mca_work
;
122 unsigned int mca_flags
;
124 refcount_t mca_refcnt
;
125 unsigned long mca_cstamp
;
126 unsigned long mca_tstamp
;
132 struct ipv6_ac_socklist
{
133 struct in6_addr acl_addr
;
135 struct ipv6_ac_socklist
*acl_next
;
139 struct in6_addr aca_addr
;
140 struct fib6_info
*aca_rt
;
141 struct ifacaddr6
*aca_next
;
142 struct hlist_node aca_addr_lst
;
144 refcount_t aca_refcnt
;
145 unsigned long aca_cstamp
;
146 unsigned long aca_tstamp
;
150 #define IFA_HOST IPV6_ADDR_LOOPBACK
151 #define IFA_LINK IPV6_ADDR_LINKLOCAL
152 #define IFA_SITE IPV6_ADDR_SITELOCAL
154 struct ipv6_devstat
{
155 struct proc_dir_entry
*proc_dir_entry
;
156 DEFINE_SNMP_STAT(struct ipstats_mib
, ipv6
);
157 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device
, icmpv6dev
);
158 DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device
, icmpv6msgdev
);
162 struct net_device
*dev
;
164 struct list_head addr_list
;
166 struct ifmcaddr6 __rcu
*mc_list
;
167 struct ifmcaddr6 __rcu
*mc_tomb
;
169 unsigned char mc_qrv
; /* Query Robustness Variable */
170 unsigned char mc_gq_running
;
171 unsigned char mc_ifc_count
;
172 unsigned char mc_dad_count
;
174 unsigned long mc_v1_seen
; /* Max time we stay in MLDv1 mode */
175 unsigned long mc_qi
; /* Query Interval */
176 unsigned long mc_qri
; /* Query Response Interval */
177 unsigned long mc_maxdelay
;
179 struct delayed_work mc_gq_work
; /* general query work */
180 struct delayed_work mc_ifc_work
; /* interface change work */
181 struct delayed_work mc_dad_work
; /* dad complete mc work */
182 struct delayed_work mc_query_work
; /* mld query work */
183 struct delayed_work mc_report_work
; /* mld report work */
185 struct sk_buff_head mc_query_queue
; /* mld query queue */
186 struct sk_buff_head mc_report_queue
; /* mld report queue */
188 spinlock_t mc_query_lock
; /* mld query queue lock */
189 spinlock_t mc_report_lock
; /* mld query report lock */
190 struct mutex mc_lock
; /* mld global lock */
192 struct ifacaddr6
*ac_list
;
199 struct list_head tempaddr_list
;
201 struct in6_addr token
;
203 struct neigh_parms
*nd_parms
;
204 struct ipv6_devconf cnf
;
205 struct ipv6_devstat stats
;
207 struct timer_list rs_timer
;
208 __s32 rs_interval
; /* in jiffies */
211 unsigned long tstamp
; /* ipv6InterfaceTable update timestamp */
217 static inline void ipv6_eth_mc_map(const struct in6_addr
*addr
, char *buf
)
220 * +-------+-------+-------+-------+-------+-------+
221 * | 33 | 33 | DST13 | DST14 | DST15 | DST16 |
222 * +-------+-------+-------+-------+-------+-------+
228 memcpy(buf
+ 2, &addr
->s6_addr32
[3], sizeof(__u32
));
231 static inline void ipv6_arcnet_mc_map(const struct in6_addr
*addr
, char *buf
)
236 static inline void ipv6_ib_mc_map(const struct in6_addr
*addr
,
237 const unsigned char *broadcast
, char *buf
)
239 unsigned char scope
= broadcast
[5] & 0xF;
241 buf
[0] = 0; /* Reserved */
242 buf
[1] = 0xff; /* Multicast QPN */
246 buf
[5] = 0x10 | scope
; /* scope from broadcast address */
247 buf
[6] = 0x60; /* IPv6 signature */
249 buf
[8] = broadcast
[8]; /* P_Key */
250 buf
[9] = broadcast
[9];
251 memcpy(buf
+ 10, addr
->s6_addr
+ 6, 10);
254 static inline int ipv6_ipgre_mc_map(const struct in6_addr
*addr
,
255 const unsigned char *broadcast
, char *buf
)
257 if ((broadcast
[0] | broadcast
[1] | broadcast
[2] | broadcast
[3]) != 0) {
258 memcpy(buf
, broadcast
, 4);
261 if ((addr
->s6_addr32
[0] | addr
->s6_addr32
[1] |
262 (addr
->s6_addr32
[2] ^ htonl(0x0000ffff))) != 0)
264 memcpy(buf
, &addr
->s6_addr32
[3], 4);