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Merge tag 'pci-v6.16-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
[linux-block.git] / include / net / addrconf.h
CommitLineData
b2441318 1/* SPDX-License-Identifier: GPL-2.0 */
1da177e4
LT		 2#ifndef _ADDRCONF_H
3#define _ADDRCONF_H
4
bd11f074 5#define MAX_RTR_SOLICITATIONS -1 /* unlimited */
1da177e4 6#define RTR_SOLICITATION_INTERVAL (4*HZ)
bd11f074 7#define RTR_SOLICITATION_MAX_INTERVAL (3600*HZ) /* 1 hour */
1da177e4 8
36268983
GN		 9#define MIN_VALID_LIFETIME (2*3600) /* 2 hours */
10
a5fcea2d
AH		 11#define TEMP_VALID_LIFETIME (7*86400) /* 1 week */
12#define TEMP_PREFERRED_LIFETIME (86400) /* 24 hours */
13#define REGEN_MIN_ADVANCE (2) /* 2 seconds */
76f793e3 14#define REGEN_MAX_RETRY (3)
1da177e4
LT		 15#define MAX_DESYNC_FACTOR (600)
16
17#define ADDR_CHECK_FREQUENCY (120*HZ)
18
19#define IPV6_MAX_ADDRESSES 16
20
5c766d64
JP		 21#define ADDRCONF_TIMER_FUZZ_MINUS (HZ > 50 ? HZ / 50 : 1)
22#define ADDRCONF_TIMER_FUZZ (HZ / 4)
23#define ADDRCONF_TIMER_FUZZ_MAX (HZ)
24
242d3a49
WC		 25#define ADDRCONF_NOTIFY_PRIORITY 0
26
c7dc89c0 27#include <linux/in.h>
6a800d45
PM		 28#include <linux/in6.h>
29
1da177e4
LT		 30struct prefix_info {
31 __u8 type;
32 __u8 length;
33 __u8 prefix_len;
34
bd4a8167
MŻ		 35 union __packed {
36 __u8 flags;
37 struct __packed {
1da177e4 38#if defined(__BIG_ENDIAN_BITFIELD)
bd4a8167 39 __u8 onlink : 1,
990c3049
PR		 40 autoconf : 1,
41 routeraddr : 1,
42 preferpd : 1,
43 reserved : 4;
1da177e4 44#elif defined(__LITTLE_ENDIAN_BITFIELD)
990c3049
PR		 45 __u8 reserved : 4,
46 preferpd : 1,
47 routeraddr : 1,
1da177e4
LT		 48 autoconf : 1,
49 onlink : 1;
50#else
51#error "Please fix <asm/byteorder.h>"
52#endif
bd4a8167
MŻ		 53 };
54 };
e69a4adc
AV		 55 __be32 valid;
56 __be32 prefered;
57 __be32 reserved2;
1da177e4
LT		 58
59 struct in6_addr prefix;
60};
61
bd4a8167
MŻ		 62/* rfc4861 4.6.2: IPv6 PIO is 32 bytes in size */
63static_assert(sizeof(struct prefix_info) == 32);
64
ba5ea614 65#include <linux/ipv6.h>
1da177e4
LT		 66#include <linux/netdevice.h>
67#include <net/if_inet6.h>
e4553edd 68#include <net/ipv6.h>
1da177e4 69
3ad7d246
KJ		 70struct in6_validator_info {
71 struct in6_addr i6vi_addr;
72 struct inet6_dev *i6vi_dev;
de95e047 73 struct netlink_ext_ack *extack;
3ad7d246
KJ		 74};
75
e6464b8c
DA		 76struct ifa6_config {
77 const struct in6_addr *pfx;
78 unsigned int plen;
79
47f0bd50
JL		 80 u8 ifa_proto;
81
e6464b8c
DA		 82 const struct in6_addr *peer_pfx;
83
8308f3ff 84 u32 rt_priority;
e6464b8c
DA		 85 u32 ifa_flags;
86 u32 preferred_lft;
87 u32 valid_lft;
88 u16 scope;
89};
90
2c2b61d2
YH		 91enum addr_type_t {
92 UNICAST_ADDR,
93 MULTICAST_ADDR,
94 ANYCAST_ADDR,
95};
96
97struct inet6_fill_args {
98 u32 portid;
99 u32 seq;
100 int event;
101 unsigned int flags;
102 int netnsid;
103 int ifindex;
104 enum addr_type_t type;
105 bool force_rt_scope_universe;
106};
107
e8e54d3c
JP		 108int addrconf_init(void);
109void addrconf_cleanup(void);
1da177e4 110
e8e54d3c
JP		 111int addrconf_add_ifaddr(struct net *net, void __user *arg);
112int addrconf_del_ifaddr(struct net *net, void __user *arg);
113int addrconf_set_dstaddr(struct net *net, void __user *arg);
1da177e4 114
e8e54d3c
JP		 115int ipv6_chk_addr(struct net *net, const struct in6_addr *addr,
116 const struct net_device *dev, int strict);
c58da4c6 117int ipv6_chk_addr_and_flags(struct net *net, const struct in6_addr *addr,
232378e8
DA		 118 const struct net_device *dev, bool skip_dev_check,
119 int strict, u32 banned_flags);
bfeade08 120
59fbb3a6 121#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
e8e54d3c 122int ipv6_chk_home_addr(struct net *net, const struct in6_addr *addr);
65d4ed92 123#endif
52eeeb84 124
f37c6059
AA		 125int ipv6_chk_rpl_srh_loop(struct net *net, const struct in6_addr *segs,
126 unsigned char nsegs);
127
7df37ff3
CB		 128bool ipv6_chk_custom_prefix(const struct in6_addr *addr,
129 const unsigned int prefix_len,
130 struct net_device *dev);
131
e8e54d3c
JP		 132int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev);
133
4ef1a7cb
XL		 134struct net_device *ipv6_dev_find(struct net *net, const struct in6_addr *addr,
135 struct net_device *dev);
81f6cb31 136
e8e54d3c
JP		 137struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net,
138 const struct in6_addr *addr,
139 struct net_device *dev, int strict);
140
141int ipv6_dev_get_saddr(struct net *net, const struct net_device *dev,
142 const struct in6_addr *daddr, unsigned int srcprefs,
143 struct in6_addr *saddr);
e8e54d3c 144int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr,
479840ff 145 u32 banned_flags);
7016e062
JP		 146bool inet_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2,
147 bool match_wildcard);
2dbb9b9e 148bool inet_rcv_saddr_any(const struct sock *sk);
e8e54d3c
JP		 149void addrconf_join_solict(struct net_device *dev, const struct in6_addr *addr);
150void addrconf_leave_solict(struct inet6_dev *idev, const struct in6_addr *addr);
1da177e4 151
2ad3ed59
AA		 152void addrconf_add_linklocal(struct inet6_dev *idev,
153 const struct in6_addr *addr, u32 flags);
154
cc84b3c6
AA		 155int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
156 const struct prefix_info *pinfo,
157 struct inet6_dev *in6_dev,
158 const struct in6_addr *addr, int addr_type,
159 u32 addr_flags, bool sllao, bool tokenized,
160 __u32 valid_lft, u32 prefered_lft);
161
4d6f2859
YS		 162static inline void addrconf_addr_eui48_base(u8 *eui, const char *const addr)
163{
164 memcpy(eui, addr, 3);
165 eui[3] = 0xFF;
166 eui[4] = 0xFE;
167 memcpy(eui + 5, addr + 3, 3);
168}
169
170static inline void addrconf_addr_eui48(u8 *eui, const char *const addr)
171{
172 addrconf_addr_eui48_base(eui, addr);
173 eui[0] ^= 2;
174}
175
399e6f95
MB		 176static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev)
177{
178 if (dev->addr_len != ETH_ALEN)
179 return -1;
399e6f95
MB		 180
181 /*
182 * The zSeries OSA network cards can be shared among various
183 * OS instances, but the OSA cards have only one MAC address.
184 * This leads to duplicate address conflicts in conjunction
185 * with IPv6 if more than one instance uses the same card.
186 *
187 * The driver for these cards can deliver a unique 16-bit
188 * identifier for each instance sharing the same card. It is
189 * placed instead of 0xFFFE in the interface identifier. The
190 * "u" bit of the interface identifier is not inverted in this
191 * case. Hence the resulting interface identifier has local
192 * scope according to RFC2373.
193 */
4d6f2859
YS		 194
195 addrconf_addr_eui48_base(eui, dev->dev_addr);
196
399e6f95
MB		 197 if (dev->dev_id) {
198 eui[3] = (dev->dev_id >> 8) & 0xFF;
199 eui[4] = dev->dev_id & 0xFF;
200 } else {
399e6f95
MB		 201 eui[0] ^= 2;
202 }
4d6f2859 203
399e6f95
MB		 204 return 0;
205}
206
de67763c
KI		 207#define INFINITY_LIFE_TIME 0xFFFFFFFF
208
4bed72e4 209static inline unsigned long addrconf_timeout_fixup(u32 timeout,
95c96174 210 unsigned int unit)
4bed72e4 211{
de67763c 212 if (timeout == INFINITY_LIFE_TIME)
4bed72e4
YH		 213 return ~0UL;
214
215 /*
216 * Avoid arithmetic overflow.
217 * Assuming unit is constant and non-zero, this "if" statement
218 * will go away on 64bit archs.
219 */
220 if (0xfffffffe > LONG_MAX / unit && timeout > LONG_MAX / unit)
221 return LONG_MAX / unit;
222
223 return timeout;
224}
225
226static inline int addrconf_finite_timeout(unsigned long timeout)
227{
228 return ~timeout;
229}
230
2a8cc6c8
YH		 231/*
232 * IPv6 Address Label subsystem (addrlabel.c)
233 */
e8e54d3c
JP		 234int ipv6_addr_label_init(void);
235void ipv6_addr_label_cleanup(void);
a3fde2ad 236int ipv6_addr_label_rtnl_register(void);
e8e54d3c
JP		 237u32 ipv6_addr_label(struct net *net, const struct in6_addr *addr,
238 int type, int ifindex);
2a8cc6c8 239
1da177e4
LT		 240/*
241 * multicast prototypes (mcast.c)
242 */
32890862
DM		 243static inline bool ipv6_mc_may_pull(struct sk_buff *skb,
244 unsigned int len)
ba5ea614
LL		 245{
246 if (skb_transport_offset(skb) + ipv6_transport_len(skb) < len)
32890862 247 return false;
ba5ea614
LL		 248
249 return pskb_may_pull(skb, len);
250}
251
e8e54d3c
JP		 252int ipv6_sock_mc_join(struct sock *sk, int ifindex,
253 const struct in6_addr *addr);
254int ipv6_sock_mc_drop(struct sock *sk, int ifindex,
255 const struct in6_addr *addr);
8651be8f 256void __ipv6_sock_mc_close(struct sock *sk);
e8e54d3c 257void ipv6_sock_mc_close(struct sock *sk);
66eb554c 258bool inet6_mc_check(const struct sock *sk, const struct in6_addr *mc_addr,
e8e54d3c
JP		 259 const struct in6_addr *src_addr);
260
261int ipv6_dev_mc_inc(struct net_device *dev, const struct in6_addr *addr);
262int __ipv6_dev_mc_dec(struct inet6_dev *idev, const struct in6_addr *addr);
263int ipv6_dev_mc_dec(struct net_device *dev, const struct in6_addr *addr);
264void ipv6_mc_up(struct inet6_dev *idev);
265void ipv6_mc_down(struct inet6_dev *idev);
266void ipv6_mc_unmap(struct inet6_dev *idev);
267void ipv6_mc_remap(struct inet6_dev *idev);
268void ipv6_mc_init_dev(struct inet6_dev *idev);
269void ipv6_mc_destroy_dev(struct inet6_dev *idev);
ba5ea614 270int ipv6_mc_check_mld(struct sk_buff *skb);
da13c59b 271void addrconf_dad_failure(struct sk_buff *skb, struct inet6_ifaddr *ifp);
e8e54d3c
JP		 272
273bool ipv6_chk_mcast_addr(struct net_device *dev, const struct in6_addr *group,
274 const struct in6_addr *src_addr);
275
276void ipv6_mc_dad_complete(struct inet6_dev *idev);
5f81bd2e 277
daad1512
YH		 278/*
279 * identify MLD packets for MLD filter exceptions
280 */
281static inline bool ipv6_is_mld(struct sk_buff *skb, int nexthdr, int offset)
282{
283 struct icmp6hdr *hdr;
284
285 if (nexthdr != IPPROTO_ICMPV6 ||
286 !pskb_network_may_pull(skb, offset + sizeof(struct icmp6hdr)))
287 return false;
288
289 hdr = (struct icmp6hdr *)(skb_network_header(skb) + offset);
290
291 switch (hdr->icmp6_type) {
292 case ICMPV6_MGM_QUERY:
293 case ICMPV6_MGM_REPORT:
294 case ICMPV6_MGM_REDUCTION:
295 case ICMPV6_MLD2_REPORT:
296 return true;
297 default:
298 break;
299 }
300 return false;
301}
1da177e4 302
e8e54d3c
JP		 303void addrconf_prefix_rcv(struct net_device *dev,
304 u8 *opt, int len, bool sllao);
1da177e4 305
1da177e4
LT		 306/*
307 * anycast prototypes (anycast.c)
308 */
e8e54d3c
JP		 309int ipv6_sock_ac_join(struct sock *sk, int ifindex,
310 const struct in6_addr *addr);
311int ipv6_sock_ac_drop(struct sock *sk, int ifindex,
312 const struct in6_addr *addr);
8c0de6e9 313void __ipv6_sock_ac_close(struct sock *sk);
e8e54d3c
JP		 314void ipv6_sock_ac_close(struct sock *sk);
315
013b4d90 316int __ipv6_dev_ac_inc(struct inet6_dev *idev, const struct in6_addr *addr);
e8e54d3c 317int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr);
381f4dca 318void ipv6_ac_destroy_dev(struct inet6_dev *idev);
e8e54d3c 319bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
7c90cc2d
FLB		 320 const struct in6_addr *addr);
321bool ipv6_chk_acast_addr_src(struct net *net, struct net_device *dev,
322 const struct in6_addr *addr);
2384d025
JB		 323int ipv6_anycast_init(void);
324void ipv6_anycast_cleanup(void);
1da177e4
LT		 325
326/* Device notifier */
e8e54d3c
JP		 327int register_inet6addr_notifier(struct notifier_block *nb);
328int unregister_inet6addr_notifier(struct notifier_block *nb);
329int inet6addr_notifier_call_chain(unsigned long val, void *v);
1da177e4 330
3ad7d246
KJ		 331int register_inet6addr_validator_notifier(struct notifier_block *nb);
332int unregister_inet6addr_validator_notifier(struct notifier_block *nb);
333int inet6addr_validator_notifier_call_chain(unsigned long val, void *v);
334
85b3daad
DA		 335void inet6_netconf_notify_devconf(struct net *net, int event, int type,
336 int ifindex, struct ipv6_devconf *devconf);
d67b8c61 337
48daa3bb
ED		 338/**
339 * __in6_dev_get - get inet6_dev pointer from netdevice
340 * @dev: network device
341 *
342 * Caller must hold rcu_read_lock or RTNL, because this function
343 * does not take a reference on the inet6_dev.
344 */
345static inline struct inet6_dev *__in6_dev_get(const struct net_device *dev)
1da177e4 346{
48daa3bb 347 return rcu_dereference_rtnl(dev->ip6_ptr);
1da177e4
LT		 348}
349
f7a6082b
KI		 350static inline struct inet6_dev *__in6_dev_get_rtnl_net(const struct net_device *dev)
351{
352 return rtnl_net_dereference(dev_net(dev), dev->ip6_ptr);
353}
354
e1ae5c2e
SS		 355/**
356 * __in6_dev_stats_get - get inet6_dev pointer for stats
357 * @dev: network device
70d0bb45 358 * @skb: skb for original incoming interface if needed
e1ae5c2e
SS		 359 *
360 * Caller must hold rcu_read_lock or RTNL, because this function
361 * does not take a reference on the inet6_dev.
362 */
363static inline struct inet6_dev *__in6_dev_stats_get(const struct net_device *dev,
364 const struct sk_buff *skb)
365{
366 if (netif_is_l3_master(dev))
367 dev = dev_get_by_index_rcu(dev_net(dev), inet6_iif(skb));
368 return __in6_dev_get(dev);
369}
370
bdb7cc64
SS		 371/**
372 * __in6_dev_get_safely - get inet6_dev pointer from netdevice
373 * @dev: network device
374 *
375 * This is a safer version of __in6_dev_get
376 */
377static inline struct inet6_dev *__in6_dev_get_safely(const struct net_device *dev)
378{
379 if (likely(dev))
380 return rcu_dereference_rtnl(dev->ip6_ptr);
381 else
382 return NULL;
383}
384
48daa3bb
ED		 385/**
386 * in6_dev_get - get inet6_dev pointer from netdevice
387 * @dev: network device
388 *
389 * This version can be used in any context, and takes a reference
390 * on the inet6_dev. Callers must use in6_dev_put() later to
391 * release this reference.
392 */
393static inline struct inet6_dev *in6_dev_get(const struct net_device *dev)
1da177e4 394{
48daa3bb
ED		 395 struct inet6_dev *idev;
396
8814c4b5 397 rcu_read_lock();
48daa3bb 398 idev = rcu_dereference(dev->ip6_ptr);
1da177e4 399 if (idev)
1be92460 400 refcount_inc(&idev->refcnt);
8814c4b5 401 rcu_read_unlock();
1da177e4
LT		 402 return idev;
403}
404
bba24896
JP		 405static inline struct neigh_parms *__in6_dev_nd_parms_get_rcu(const struct net_device *dev)
406{
407 struct inet6_dev *idev = __in6_dev_get(dev);
408
409 return idev ? idev->nd_parms : NULL;
410}
411
e8e54d3c 412void in6_dev_finish_destroy(struct inet6_dev *idev);
1da177e4 413
48daa3bb 414static inline void in6_dev_put(struct inet6_dev *idev)
1da177e4 415{
1be92460 416 if (refcount_dec_and_test(&idev->refcnt))
1da177e4
LT		 417 in6_dev_finish_destroy(idev);
418}
419
12d94a80
ED		 420static inline void in6_dev_put_clear(struct inet6_dev **pidev)
421{
422 struct inet6_dev *idev = *pidev;
423
424 if (idev) {
425 in6_dev_put(idev);
426 *pidev = NULL;
427 }
428}
429
48daa3bb
ED		 430static inline void __in6_dev_put(struct inet6_dev *idev)
431{
1be92460 432 refcount_dec(&idev->refcnt);
48daa3bb 433}
1da177e4 434
48daa3bb
ED		 435static inline void in6_dev_hold(struct inet6_dev *idev)
436{
1be92460 437 refcount_inc(&idev->refcnt);
48daa3bb 438}
1da177e4 439
6d3d07b4
DA		 440/* called with rcu_read_lock held */
441static inline bool ip6_ignore_linkdown(const struct net_device *dev)
442{
443 const struct inet6_dev *idev = __in6_dev_get(dev);
444
85f0173d
ZX		 445 if (unlikely(!idev))
446 return true;
447
fca34cc0 448 return !!READ_ONCE(idev->cnf.ignore_routes_with_linkdown);
6d3d07b4
DA		 449}
450
e8e54d3c 451void inet6_ifa_finish_destroy(struct inet6_ifaddr *ifp);
1da177e4
LT		 452
453static inline void in6_ifa_put(struct inet6_ifaddr *ifp)
454{
271201c0 455 if (refcount_dec_and_test(&ifp->refcnt))
1da177e4
LT		 456 inet6_ifa_finish_destroy(ifp);
457}
458
48daa3bb
ED		 459static inline void __in6_ifa_put(struct inet6_ifaddr *ifp)
460{
271201c0 461 refcount_dec(&ifp->refcnt);
48daa3bb 462}
1da177e4 463
48daa3bb
ED		 464static inline void in6_ifa_hold(struct inet6_ifaddr *ifp)
465{
271201c0 466 refcount_inc(&ifp->refcnt);
48daa3bb 467}
1da177e4 468
7633c4da
JB		 469static inline bool in6_ifa_hold_safe(struct inet6_ifaddr *ifp)
470{
471 return refcount_inc_not_zero(&ifp->refcnt);
472}
1da177e4
LT		 473
474/*
475 * compute link-local solicited-node multicast address
476 */
477
478static inline void addrconf_addr_solict_mult(const struct in6_addr *addr,
479 struct in6_addr *solicited)
480{
481 ipv6_addr_set(solicited,
0e7b8dcd
YH		 482 htonl(0xFF020000), 0,
483 htonl(0x1),
484 htonl(0xFF000000) | addr->s6_addr32[3]);
1da177e4
LT		 485}
486
b27b28cb 487static inline bool ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)
1da177e4 488{
d1641565 489#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
54e1f08b 490 __be64 *p = (__force __be64 *)addr;
d1641565
YH		 491 return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(1))) == 0UL;
492#else
48daa3bb 493 return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
fed85383 494 addr->s6_addr32[1] | addr->s6_addr32[2] |
48daa3bb 495 (addr->s6_addr32[3] ^ htonl(0x00000001))) == 0;
d1641565 496#endif
1da177e4
LT		 497}
498
b27b28cb 499static inline bool ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)
1da177e4 500{
d1641565 501#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
54e1f08b 502 __be64 *p = (__force __be64 *)addr;
d1641565
YH		 503 return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(2))) == 0UL;
504#else
48daa3bb 505 return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
fed85383 506 addr->s6_addr32[1] | addr->s6_addr32[2] |
48daa3bb 507 (addr->s6_addr32[3] ^ htonl(0x00000002))) == 0;
d1641565 508#endif
1da177e4
LT		 509}
510
b27b28cb 511static inline bool ipv6_addr_is_isatap(const struct in6_addr *addr)
c7dc89c0 512{
48daa3bb 513 return (addr->s6_addr32[2] | htonl(0x02000000)) == htonl(0x02005EFE);
c7dc89c0
FT		 514}
515
ca97a644
YH		 516static inline bool ipv6_addr_is_solict_mult(const struct in6_addr *addr)
517{
9d100774 518#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
54e1f08b 519 __be64 *p = (__force __be64 *)addr;
9d100774
YH		 520 return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) |
521 ((p[1] ^ cpu_to_be64(0x00000001ff000000UL)) &
522 cpu_to_be64(0xffffffffff000000UL))) == 0UL;
523#else
524 return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
525 addr->s6_addr32[1] |
526 (addr->s6_addr32[2] ^ htonl(0x00000001)) |
527 (addr->s6_addr[12] ^ 0xff)) == 0;
528#endif
ca97a644
YH		 529}
530
4b3087c7
LL		 531static inline bool ipv6_addr_is_all_snoopers(const struct in6_addr *addr)
532{
533#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64
54e1f08b 534 __be64 *p = (__force __be64 *)addr;
4b3087c7
LL		 535
536 return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) |
537 (p[1] ^ cpu_to_be64(0x6a))) == 0UL;
538#else
539 return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
540 addr->s6_addr32[1] | addr->s6_addr32[2] |
541 (addr->s6_addr32[3] ^ htonl(0x0000006a))) == 0;
542#endif
543}
544
20380731 545#ifdef CONFIG_PROC_FS
e8e54d3c
JP		 546int if6_proc_init(void);
547void if6_proc_exit(void);
20380731
ACM		 548#endif
549
2c2b61d2
YH		 550int inet6_fill_ifmcaddr(struct sk_buff *skb,
551 const struct ifmcaddr6 *ifmca,
552 struct inet6_fill_args *args);
553
33d97a07
YH		 554int inet6_fill_ifacaddr(struct sk_buff *skb,
555 const struct ifacaddr6 *ifaca,
556 struct inet6_fill_args *args);
1da177e4 557#endif
Linux 6.x block layer and io_uring tree(s)