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Merge tag 'v3.10.102' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / core / rtnetlink.c
CommitLineData
1da177e4
LT		 1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Routing netlink socket interface: protocol independent part.
7 *
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 *
15 * Fixes:
16 * Vitaly E. Lavrov RTA_OK arithmetics was wrong.
17 */
18
1da177e4
LT		 19#include <linux/errno.h>
20#include <linux/module.h>
21#include <linux/types.h>
22#include <linux/socket.h>
23#include <linux/kernel.h>
1da177e4
LT		 24#include <linux/timer.h>
25#include <linux/string.h>
26#include <linux/sockios.h>
27#include <linux/net.h>
28#include <linux/fcntl.h>
29#include <linux/mm.h>
30#include <linux/slab.h>
31#include <linux/interrupt.h>
32#include <linux/capability.h>
33#include <linux/skbuff.h>
34#include <linux/init.h>
35#include <linux/security.h>
6756ae4b 36#include <linux/mutex.h>
1823730f 37#include <linux/if_addr.h>
77162022 38#include <linux/if_bridge.h>
ebc08a6f 39#include <linux/pci.h>
77162022 40#include <linux/etherdevice.h>
1da177e4
LT		 41
42#include <asm/uaccess.h>
1da177e4
LT		 43
44#include <linux/inet.h>
45#include <linux/netdevice.h>
46#include <net/ip.h>
47#include <net/protocol.h>
48#include <net/arp.h>
49#include <net/route.h>
50#include <net/udp.h>
51#include <net/sock.h>
52#include <net/pkt_sched.h>
14c0b97d 53#include <net/fib_rules.h>
e2849863 54#include <net/rtnetlink.h>
30ffee84 55#include <net/net_namespace.h>
1da177e4 56
6fa3eb70
S		 57#include <linux/xlog.h>
58
e0d087af 59struct rtnl_link {
e2849863
TG		 60 rtnl_doit_func doit;
61 rtnl_dumpit_func dumpit;
c7ac8679 62 rtnl_calcit_func calcit;
e2849863
TG		 63};
64
6756ae4b 65static DEFINE_MUTEX(rtnl_mutex);
1da177e4
LT		 66
67void rtnl_lock(void)
68{
6fa3eb70
S		 69 #ifdef CONFIG_MTK_NET_LOGGING
70 printk(KERN_DEBUG "[mtk_net][rtnl_lock]rtnl_lock++\n");
71 #endif
6756ae4b 72 mutex_lock(&rtnl_mutex);
6fa3eb70
S		 73 #ifdef CONFIG_MTK_NET_LOGGING
74 printk(KERN_DEBUG "[mtk_net][rtnl_lock]rtnl_lock--\n");
75 #endif
1da177e4 76}
e0d087af 77EXPORT_SYMBOL(rtnl_lock);
1da177e4 78
6756ae4b 79void __rtnl_unlock(void)
1da177e4 80{
6756ae4b 81 mutex_unlock(&rtnl_mutex);
6fa3eb70
S		 82 #ifdef CONFIG_MTK_NET_LOGGING
83 printk(KERN_DEBUG "[mtk_net][rtnl_lock]rtnl_unlock done\n");
84 #endif
1da177e4 85}
6756ae4b 86
1da177e4
LT		 87void rtnl_unlock(void)
88{
58ec3b4d 89 /* This fellow will unlock it for us. */
1da177e4
LT		 90 netdev_run_todo();
91}
e0d087af 92EXPORT_SYMBOL(rtnl_unlock);
1da177e4 93
6756ae4b
SH		 94int rtnl_trylock(void)
95{
96 return mutex_trylock(&rtnl_mutex);
97}
e0d087af 98EXPORT_SYMBOL(rtnl_trylock);
6756ae4b 99
c9c1014b
PM		 100int rtnl_is_locked(void)
101{
102 return mutex_is_locked(&rtnl_mutex);
103}
e0d087af 104EXPORT_SYMBOL(rtnl_is_locked);
c9c1014b 105
a898def2
PM		 106#ifdef CONFIG_PROVE_LOCKING
107int lockdep_rtnl_is_held(void)
108{
109 return lockdep_is_held(&rtnl_mutex);
110}
111EXPORT_SYMBOL(lockdep_rtnl_is_held);
112#endif /* #ifdef CONFIG_PROVE_LOCKING */
113
25239cee 114static struct rtnl_link *rtnl_msg_handlers[RTNL_FAMILY_MAX + 1];
e2849863
TG		 115
116static inline int rtm_msgindex(int msgtype)
117{
118 int msgindex = msgtype - RTM_BASE;
119
120 /*
121 * msgindex < 0 implies someone tried to register a netlink
122 * control code. msgindex >= RTM_NR_MSGTYPES may indicate that
123 * the message type has not been added to linux/rtnetlink.h
124 */
125 BUG_ON(msgindex < 0 || msgindex >= RTM_NR_MSGTYPES);
126
127 return msgindex;
128}
129
130static rtnl_doit_func rtnl_get_doit(int protocol, int msgindex)
131{
132 struct rtnl_link *tab;
133
25239cee 134 if (protocol <= RTNL_FAMILY_MAX)
0f87b1dd
PM		 135 tab = rtnl_msg_handlers[protocol];
136 else
137 tab = NULL;
138
51057f2f 139 if (tab == NULL || tab[msgindex].doit == NULL)
e2849863
TG		 140 tab = rtnl_msg_handlers[PF_UNSPEC];
141
c80bbeae 142 return tab[msgindex].doit;
e2849863
TG		 143}
144
145static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
146{
147 struct rtnl_link *tab;
148
25239cee 149 if (protocol <= RTNL_FAMILY_MAX)
0f87b1dd
PM		 150 tab = rtnl_msg_handlers[protocol];
151 else
152 tab = NULL;
153
51057f2f 154 if (tab == NULL || tab[msgindex].dumpit == NULL)
e2849863
TG		 155 tab = rtnl_msg_handlers[PF_UNSPEC];
156
c80bbeae 157 return tab[msgindex].dumpit;
e2849863
TG		 158}
159
c7ac8679
GR		 160static rtnl_calcit_func rtnl_get_calcit(int protocol, int msgindex)
161{
162 struct rtnl_link *tab;
163
164 if (protocol <= RTNL_FAMILY_MAX)
165 tab = rtnl_msg_handlers[protocol];
166 else
167 tab = NULL;
168
169 if (tab == NULL || tab[msgindex].calcit == NULL)
170 tab = rtnl_msg_handlers[PF_UNSPEC];
171
c80bbeae 172 return tab[msgindex].calcit;
c7ac8679
GR		 173}
174
e2849863
TG		 175/**
176 * __rtnl_register - Register a rtnetlink message type
177 * @protocol: Protocol family or PF_UNSPEC
178 * @msgtype: rtnetlink message type
179 * @doit: Function pointer called for each request message
180 * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message
c7ac8679 181 * @calcit: Function pointer to calc size of dump message
e2849863
TG		 182 *
183 * Registers the specified function pointers (at least one of them has
184 * to be non-NULL) to be called whenever a request message for the
185 * specified protocol family and message type is received.
186 *
187 * The special protocol family PF_UNSPEC may be used to define fallback
188 * function pointers for the case when no entry for the specific protocol
189 * family exists.
190 *
191 * Returns 0 on success or a negative error code.
192 */
193int __rtnl_register(int protocol, int msgtype,
c7ac8679
GR		 194 rtnl_doit_func doit, rtnl_dumpit_func dumpit,
195 rtnl_calcit_func calcit)
e2849863
TG		 196{
197 struct rtnl_link *tab;
198 int msgindex;
199
25239cee 200 BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
e2849863
TG		 201 msgindex = rtm_msgindex(msgtype);
202
203 tab = rtnl_msg_handlers[protocol];
204 if (tab == NULL) {
205 tab = kcalloc(RTM_NR_MSGTYPES, sizeof(*tab), GFP_KERNEL);
206 if (tab == NULL)
207 return -ENOBUFS;
208
209 rtnl_msg_handlers[protocol] = tab;
210 }
211
212 if (doit)
213 tab[msgindex].doit = doit;
214
215 if (dumpit)
216 tab[msgindex].dumpit = dumpit;
217
c7ac8679
GR		 218 if (calcit)
219 tab[msgindex].calcit = calcit;
220
e2849863
TG		 221 return 0;
222}
e2849863
TG		 223EXPORT_SYMBOL_GPL(__rtnl_register);
224
225/**
226 * rtnl_register - Register a rtnetlink message type
227 *
228 * Identical to __rtnl_register() but panics on failure. This is useful
229 * as failure of this function is very unlikely, it can only happen due
230 * to lack of memory when allocating the chain to store all message
231 * handlers for a protocol. Meant for use in init functions where lack
25985edc 232 * of memory implies no sense in continuing.
e2849863
TG		 233 */
234void rtnl_register(int protocol, int msgtype,
c7ac8679
GR		 235 rtnl_doit_func doit, rtnl_dumpit_func dumpit,
236 rtnl_calcit_func calcit)
e2849863 237{
c7ac8679 238 if (__rtnl_register(protocol, msgtype, doit, dumpit, calcit) < 0)
e2849863
TG		 239 panic("Unable to register rtnetlink message handler, "
240 "protocol = %d, message type = %d\n",
241 protocol, msgtype);
242}
e2849863
TG		 243EXPORT_SYMBOL_GPL(rtnl_register);
244
245/**
246 * rtnl_unregister - Unregister a rtnetlink message type
247 * @protocol: Protocol family or PF_UNSPEC
248 * @msgtype: rtnetlink message type
249 *
250 * Returns 0 on success or a negative error code.
251 */
252int rtnl_unregister(int protocol, int msgtype)
253{
254 int msgindex;
255
25239cee 256 BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
e2849863
TG		 257 msgindex = rtm_msgindex(msgtype);
258
259 if (rtnl_msg_handlers[protocol] == NULL)
260 return -ENOENT;
261
262 rtnl_msg_handlers[protocol][msgindex].doit = NULL;
263 rtnl_msg_handlers[protocol][msgindex].dumpit = NULL;
264
265 return 0;
266}
e2849863
TG		 267EXPORT_SYMBOL_GPL(rtnl_unregister);
268
269/**
270 * rtnl_unregister_all - Unregister all rtnetlink message type of a protocol
271 * @protocol : Protocol family or PF_UNSPEC
272 *
273 * Identical to calling rtnl_unregster() for all registered message types
274 * of a certain protocol family.
275 */
276void rtnl_unregister_all(int protocol)
277{
25239cee 278 BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
e2849863
TG		 279
280 kfree(rtnl_msg_handlers[protocol]);
281 rtnl_msg_handlers[protocol] = NULL;
282}
e2849863 283EXPORT_SYMBOL_GPL(rtnl_unregister_all);
1da177e4 284
38f7b870
PM		 285static LIST_HEAD(link_ops);
286
c63044f0
ED		 287static const struct rtnl_link_ops *rtnl_link_ops_get(const char *kind)
288{
289 const struct rtnl_link_ops *ops;
290
291 list_for_each_entry(ops, &link_ops, list) {
292 if (!strcmp(ops->kind, kind))
293 return ops;
294 }
295 return NULL;
296}
297
38f7b870
PM		 298/**
299 * __rtnl_link_register - Register rtnl_link_ops with rtnetlink.
300 * @ops: struct rtnl_link_ops * to register
301 *
302 * The caller must hold the rtnl_mutex. This function should be used
303 * by drivers that create devices during module initialization. It
304 * must be called before registering the devices.
305 *
306 * Returns 0 on success or a negative error code.
307 */
308int __rtnl_link_register(struct rtnl_link_ops *ops)
309{
c63044f0
ED		 310 if (rtnl_link_ops_get(ops->kind))
311 return -EEXIST;
312
2d85cba2 313 if (!ops->dellink)
23289a37 314 ops->dellink = unregister_netdevice_queue;
2d85cba2 315
38f7b870
PM		 316 list_add_tail(&ops->list, &link_ops);
317 return 0;
318}
38f7b870
PM		 319EXPORT_SYMBOL_GPL(__rtnl_link_register);
320
321/**
322 * rtnl_link_register - Register rtnl_link_ops with rtnetlink.
323 * @ops: struct rtnl_link_ops * to register
324 *
325 * Returns 0 on success or a negative error code.
326 */
327int rtnl_link_register(struct rtnl_link_ops *ops)
328{
329 int err;
330
331 rtnl_lock();
332 err = __rtnl_link_register(ops);
333 rtnl_unlock();
334 return err;
335}
38f7b870
PM		 336EXPORT_SYMBOL_GPL(rtnl_link_register);
337
669f87ba
PE		 338static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
339{
340 struct net_device *dev;
23289a37
ED		 341 LIST_HEAD(list_kill);
342
669f87ba 343 for_each_netdev(net, dev) {
23289a37
ED		 344 if (dev->rtnl_link_ops == ops)
345 ops->dellink(dev, &list_kill);
669f87ba 346 }
23289a37 347 unregister_netdevice_many(&list_kill);
669f87ba
PE		 348}
349
38f7b870
PM		 350/**
351 * __rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
352 * @ops: struct rtnl_link_ops * to unregister
353 *
2d85cba2 354 * The caller must hold the rtnl_mutex.
38f7b870
PM		 355 */
356void __rtnl_link_unregister(struct rtnl_link_ops *ops)
357{
881d966b 358 struct net *net;
2d85cba2 359
881d966b 360 for_each_net(net) {
669f87ba 361 __rtnl_kill_links(net, ops);
2d85cba2 362 }
38f7b870
PM		 363 list_del(&ops->list);
364}
38f7b870
PM		 365EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
366
367/**
368 * rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
369 * @ops: struct rtnl_link_ops * to unregister
370 */
371void rtnl_link_unregister(struct rtnl_link_ops *ops)
372{
373 rtnl_lock();
374 __rtnl_link_unregister(ops);
375 rtnl_unlock();
376}
38f7b870
PM		 377EXPORT_SYMBOL_GPL(rtnl_link_unregister);
378
38f7b870
PM		 379static size_t rtnl_link_get_size(const struct net_device *dev)
380{
381 const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
382 size_t size;
383
384 if (!ops)
385 return 0;
386
369cf77a
TG		 387 size = nla_total_size(sizeof(struct nlattr)) + /* IFLA_LINKINFO */
388 nla_total_size(strlen(ops->kind) + 1); /* IFLA_INFO_KIND */
38f7b870
PM		 389
390 if (ops->get_size)
391 /* IFLA_INFO_DATA + nested data */
369cf77a 392 size += nla_total_size(sizeof(struct nlattr)) +
38f7b870
PM		 393 ops->get_size(dev);
394
395 if (ops->get_xstats_size)
369cf77a
TG		 396 /* IFLA_INFO_XSTATS */
397 size += nla_total_size(ops->get_xstats_size(dev));
38f7b870
PM		 398
399 return size;
400}
401
f8ff182c
TG		 402static LIST_HEAD(rtnl_af_ops);
403
404static const struct rtnl_af_ops *rtnl_af_lookup(const int family)
405{
406 const struct rtnl_af_ops *ops;
407
408 list_for_each_entry(ops, &rtnl_af_ops, list) {
409 if (ops->family == family)
410 return ops;
411 }
412
413 return NULL;
414}
415
416/**
417 * __rtnl_af_register - Register rtnl_af_ops with rtnetlink.
418 * @ops: struct rtnl_af_ops * to register
419 *
420 * The caller must hold the rtnl_mutex.
421 *
422 * Returns 0 on success or a negative error code.
423 */
424int __rtnl_af_register(struct rtnl_af_ops *ops)
425{
426 list_add_tail(&ops->list, &rtnl_af_ops);
427 return 0;
428}
429EXPORT_SYMBOL_GPL(__rtnl_af_register);
430
431/**
432 * rtnl_af_register - Register rtnl_af_ops with rtnetlink.
433 * @ops: struct rtnl_af_ops * to register
434 *
435 * Returns 0 on success or a negative error code.
436 */
437int rtnl_af_register(struct rtnl_af_ops *ops)
438{
439 int err;
440
441 rtnl_lock();
442 err = __rtnl_af_register(ops);
443 rtnl_unlock();
444 return err;
445}
446EXPORT_SYMBOL_GPL(rtnl_af_register);
447
448/**
449 * __rtnl_af_unregister - Unregister rtnl_af_ops from rtnetlink.
450 * @ops: struct rtnl_af_ops * to unregister
451 *
452 * The caller must hold the rtnl_mutex.
453 */
454void __rtnl_af_unregister(struct rtnl_af_ops *ops)
455{
456 list_del(&ops->list);
457}
458EXPORT_SYMBOL_GPL(__rtnl_af_unregister);
459
460/**
461 * rtnl_af_unregister - Unregister rtnl_af_ops from rtnetlink.
462 * @ops: struct rtnl_af_ops * to unregister
463 */
464void rtnl_af_unregister(struct rtnl_af_ops *ops)
465{
466 rtnl_lock();
467 __rtnl_af_unregister(ops);
468 rtnl_unlock();
469}
470EXPORT_SYMBOL_GPL(rtnl_af_unregister);
471
472static size_t rtnl_link_get_af_size(const struct net_device *dev)
473{
474 struct rtnl_af_ops *af_ops;
475 size_t size;
476
477 /* IFLA_AF_SPEC */
478 size = nla_total_size(sizeof(struct nlattr));
479
480 list_for_each_entry(af_ops, &rtnl_af_ops, list) {
481 if (af_ops->get_link_af_size) {
482 /* AF_* + nested data */
483 size += nla_total_size(sizeof(struct nlattr)) +
484 af_ops->get_link_af_size(dev);
485 }
486 }
487
488 return size;
489}
490
38f7b870
PM		 491static int rtnl_link_fill(struct sk_buff *skb, const struct net_device *dev)
492{
493 const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
494 struct nlattr *linkinfo, *data;
495 int err = -EMSGSIZE;
496
497 linkinfo = nla_nest_start(skb, IFLA_LINKINFO);
498 if (linkinfo == NULL)
499 goto out;
500
501 if (nla_put_string(skb, IFLA_INFO_KIND, ops->kind) < 0)
502 goto err_cancel_link;
503 if (ops->fill_xstats) {
504 err = ops->fill_xstats(skb, dev);
505 if (err < 0)
506 goto err_cancel_link;
507 }
508 if (ops->fill_info) {
509 data = nla_nest_start(skb, IFLA_INFO_DATA);
fcca143d
WY		 510 if (data == NULL) {
511 err = -EMSGSIZE;
38f7b870 512 goto err_cancel_link;
fcca143d 513 }
38f7b870
PM		 514 err = ops->fill_info(skb, dev);
515 if (err < 0)
516 goto err_cancel_data;
517 nla_nest_end(skb, data);
518 }
519
520 nla_nest_end(skb, linkinfo);
521 return 0;
522
523err_cancel_data:
524 nla_nest_cancel(skb, data);
525err_cancel_link:
526 nla_nest_cancel(skb, linkinfo);
527out:
528 return err;
529}
530
95c96174 531int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned int group, int echo)
1da177e4 532{
97c53cac 533 struct sock *rtnl = net->rtnl;
1da177e4
LT		 534 int err = 0;
535
ac6d439d 536 NETLINK_CB(skb).dst_group = group;
1da177e4
LT		 537 if (echo)
538 atomic_inc(&skb->users);
539 netlink_broadcast(rtnl, skb, pid, group, GFP_KERNEL);
540 if (echo)
541 err = netlink_unicast(rtnl, skb, pid, MSG_DONTWAIT);
542 return err;
543}
544
97c53cac 545int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid)
2942e900 546{
97c53cac
DL		 547 struct sock *rtnl = net->rtnl;
548
2942e900
TG		 549 return nlmsg_unicast(rtnl, skb, pid);
550}
e0d087af 551EXPORT_SYMBOL(rtnl_unicast);
2942e900 552
1ce85fe4
PNA		 553void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
554 struct nlmsghdr *nlh, gfp_t flags)
97676b6b 555{
97c53cac 556 struct sock *rtnl = net->rtnl;
97676b6b
TG		 557 int report = 0;
558
559 if (nlh)
560 report = nlmsg_report(nlh);
561
1ce85fe4 562 nlmsg_notify(rtnl, skb, pid, group, report, flags);
97676b6b 563}
e0d087af 564EXPORT_SYMBOL(rtnl_notify);
97676b6b 565
97c53cac 566void rtnl_set_sk_err(struct net *net, u32 group, int error)
97676b6b 567{
97c53cac
DL		 568 struct sock *rtnl = net->rtnl;
569
97676b6b
TG		 570 netlink_set_err(rtnl, 0, group, error);
571}
e0d087af 572EXPORT_SYMBOL(rtnl_set_sk_err);
97676b6b 573
1da177e4
LT		 574int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
575{
2d7202bf
TG		 576 struct nlattr *mx;
577 int i, valid = 0;
578
579 mx = nla_nest_start(skb, RTA_METRICS);
580 if (mx == NULL)
581 return -ENOBUFS;
582
583 for (i = 0; i < RTAX_MAX; i++) {
584 if (metrics[i]) {
585 valid++;
a6574349
DM		 586 if (nla_put_u32(skb, i+1, metrics[i]))
587 goto nla_put_failure;
2d7202bf 588 }
1da177e4 589 }
1da177e4 590
a57d27fc
DM		 591 if (!valid) {
592 nla_nest_cancel(skb, mx);
593 return 0;
594 }
2d7202bf
TG		 595
596 return nla_nest_end(skb, mx);
597
598nla_put_failure:
bc3ed28c
TG		 599 nla_nest_cancel(skb, mx);
600 return -EMSGSIZE;
1da177e4 601}
e0d087af 602EXPORT_SYMBOL(rtnetlink_put_metrics);
1da177e4 603
e3703b3d 604int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
87a50699 605 long expires, u32 error)
e3703b3d
TG		 606{
607 struct rta_cacheinfo ci = {
a399a805 608 .rta_lastuse = jiffies_delta_to_clock_t(jiffies - dst->lastuse),
e3703b3d
TG		 609 .rta_used = dst->__use,
610 .rta_clntref = atomic_read(&(dst->__refcnt)),
611 .rta_error = error,
612 .rta_id = id,
e3703b3d
TG		 613 };
614
8253947e
LW		 615 if (expires) {
616 unsigned long clock;
e3703b3d 617
8253947e
LW		 618 clock = jiffies_to_clock_t(abs(expires));
619 clock = min_t(unsigned long, clock, INT_MAX);
620 ci.rta_expires = (expires > 0) ? clock : -clock;
621 }
e3703b3d
TG		 622 return nla_put(skb, RTA_CACHEINFO, sizeof(ci), &ci);
623}
e3703b3d 624EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo);
1da177e4 625
93b2d4a2 626static void set_operstate(struct net_device *dev, unsigned char transition)
b00055aa
SR		 627{
628 unsigned char operstate = dev->operstate;
629
e0d087af 630 switch (transition) {
b00055aa
SR		 631 case IF_OPER_UP:
632 if ((operstate == IF_OPER_DORMANT ||
633 operstate == IF_OPER_UNKNOWN) &&
634 !netif_dormant(dev))
635 operstate = IF_OPER_UP;
636 break;
637
638 case IF_OPER_DORMANT:
639 if (operstate == IF_OPER_UP ||
640 operstate == IF_OPER_UNKNOWN)
641 operstate = IF_OPER_DORMANT;
642 break;
3ff50b79 643 }
b00055aa
SR		 644
645 if (dev->operstate != operstate) {
646 write_lock_bh(&dev_base_lock);
647 dev->operstate = operstate;
648 write_unlock_bh(&dev_base_lock);
93b2d4a2
DM		 649 netdev_state_change(dev);
650 }
b00055aa
SR		 651}
652
b1beb681
JB		 653static unsigned int rtnl_dev_get_flags(const struct net_device *dev)
654{
655 return (dev->flags & ~(IFF_PROMISC | IFF_ALLMULTI)) |
656 (dev->gflags & (IFF_PROMISC | IFF_ALLMULTI));
657}
658
3729d502
PM		 659static unsigned int rtnl_dev_combine_flags(const struct net_device *dev,
660 const struct ifinfomsg *ifm)
661{
662 unsigned int flags = ifm->ifi_flags;
663
664 /* bugwards compatibility: ifi_change == 0 is treated as ~0 */
665 if (ifm->ifi_change)
666 flags = (flags & ifm->ifi_change) |
b1beb681 667 (rtnl_dev_get_flags(dev) & ~ifm->ifi_change);
3729d502
PM		 668
669 return flags;
670}
671
b60c5115 672static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
be1f3c2c 673 const struct rtnl_link_stats64 *b)
1da177e4 674{
b60c5115
TG		 675 a->rx_packets = b->rx_packets;
676 a->tx_packets = b->tx_packets;
677 a->rx_bytes = b->rx_bytes;
678 a->tx_bytes = b->tx_bytes;
679 a->rx_errors = b->rx_errors;
680 a->tx_errors = b->tx_errors;
681 a->rx_dropped = b->rx_dropped;
682 a->tx_dropped = b->tx_dropped;
683
684 a->multicast = b->multicast;
685 a->collisions = b->collisions;
686
687 a->rx_length_errors = b->rx_length_errors;
688 a->rx_over_errors = b->rx_over_errors;
689 a->rx_crc_errors = b->rx_crc_errors;
690 a->rx_frame_errors = b->rx_frame_errors;
691 a->rx_fifo_errors = b->rx_fifo_errors;
692 a->rx_missed_errors = b->rx_missed_errors;
693
694 a->tx_aborted_errors = b->tx_aborted_errors;
695 a->tx_carrier_errors = b->tx_carrier_errors;
696 a->tx_fifo_errors = b->tx_fifo_errors;
697 a->tx_heartbeat_errors = b->tx_heartbeat_errors;
698 a->tx_window_errors = b->tx_window_errors;
699
700 a->rx_compressed = b->rx_compressed;
701 a->tx_compressed = b->tx_compressed;
10708f37
JE		 702}
703
be1f3c2c 704static void copy_rtnl_link_stats64(void *v, const struct rtnl_link_stats64 *b)
10708f37 705{
afdcba37 706 memcpy(v, b, sizeof(*b));
10708f37 707}
1da177e4 708
c02db8c6 709/* All VF info */
115c9b81
GR		 710static inline int rtnl_vfinfo_size(const struct net_device *dev,
711 u32 ext_filter_mask)
ebc08a6f 712{
115c9b81
GR		 713 if (dev->dev.parent && dev_is_pci(dev->dev.parent) &&
714 (ext_filter_mask & RTEXT_FILTER_VF)) {
c02db8c6 715 int num_vfs = dev_num_vf(dev->dev.parent);
045de01a
SF		 716 size_t size = nla_total_size(sizeof(struct nlattr));
717 size += nla_total_size(num_vfs * sizeof(struct nlattr));
718 size += num_vfs *
719 (nla_total_size(sizeof(struct ifla_vf_mac)) +
720 nla_total_size(sizeof(struct ifla_vf_vlan)) +
5f8444a3
GR		 721 nla_total_size(sizeof(struct ifla_vf_tx_rate)) +
722 nla_total_size(sizeof(struct ifla_vf_spoofchk)));
c02db8c6
CW		 723 return size;
724 } else
ebc08a6f
WM		 725 return 0;
726}
727
fd9fcd8a
DG		 728static size_t rtnl_port_size(const struct net_device *dev,
729 u32 ext_filter_mask)
57b61080
SF		 730{
731 size_t port_size = nla_total_size(4) /* PORT_VF */
732 + nla_total_size(PORT_PROFILE_MAX) /* PORT_PROFILE */
733 + nla_total_size(sizeof(struct ifla_port_vsi))
734 /* PORT_VSI_TYPE */
735 + nla_total_size(PORT_UUID_MAX) /* PORT_INSTANCE_UUID */
736 + nla_total_size(PORT_UUID_MAX) /* PORT_HOST_UUID */
737 + nla_total_size(1) /* PROT_VDP_REQUEST */
738 + nla_total_size(2); /* PORT_VDP_RESPONSE */
739 size_t vf_ports_size = nla_total_size(sizeof(struct nlattr));
740 size_t vf_port_size = nla_total_size(sizeof(struct nlattr))
741 + port_size;
742 size_t port_self_size = nla_total_size(sizeof(struct nlattr))
743 + port_size;
744
fd9fcd8a
DG		 745 if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent ||
746 !(ext_filter_mask & RTEXT_FILTER_VF))
57b61080
SF		 747 return 0;
748 if (dev_num_vf(dev->dev.parent))
749 return port_self_size + vf_ports_size +
750 vf_port_size * dev_num_vf(dev->dev.parent);
751 else
752 return port_self_size;
753}
754
115c9b81
GR		 755static noinline size_t if_nlmsg_size(const struct net_device *dev,
756 u32 ext_filter_mask)
339bf98f
TG		 757{
758 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
759 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
0b815a1a 760 + nla_total_size(IFALIASZ) /* IFLA_IFALIAS */
339bf98f
TG		 761 + nla_total_size(IFNAMSIZ) /* IFLA_QDISC */
762 + nla_total_size(sizeof(struct rtnl_link_ifmap))
763 + nla_total_size(sizeof(struct rtnl_link_stats))
adcfe196 764 + nla_total_size(sizeof(struct rtnl_link_stats64))
339bf98f
TG		 765 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
766 + nla_total_size(MAX_ADDR_LEN) /* IFLA_BROADCAST */
767 + nla_total_size(4) /* IFLA_TXQLEN */
768 + nla_total_size(4) /* IFLA_WEIGHT */
769 + nla_total_size(4) /* IFLA_MTU */
770 + nla_total_size(4) /* IFLA_LINK */
771 + nla_total_size(4) /* IFLA_MASTER */
9a57247f 772 + nla_total_size(1) /* IFLA_CARRIER */
edbc0bb3 773 + nla_total_size(4) /* IFLA_PROMISCUITY */
76ff5cc9
JP		 774 + nla_total_size(4) /* IFLA_NUM_TX_QUEUES */
775 + nla_total_size(4) /* IFLA_NUM_RX_QUEUES */
339bf98f 776 + nla_total_size(1) /* IFLA_OPERSTATE */
38f7b870 777 + nla_total_size(1) /* IFLA_LINKMODE */
115c9b81
GR		 778 + nla_total_size(ext_filter_mask
779 & RTEXT_FILTER_VF ? 4 : 0) /* IFLA_NUM_VF */
780 + rtnl_vfinfo_size(dev, ext_filter_mask) /* IFLA_VFINFO_LIST */
fd9fcd8a 781 + rtnl_port_size(dev, ext_filter_mask) /* IFLA_VF_PORTS + IFLA_PORT_SELF */
f8ff182c
TG		 782 + rtnl_link_get_size(dev) /* IFLA_LINKINFO */
783 + rtnl_link_get_af_size(dev); /* IFLA_AF_SPEC */
339bf98f
TG		 784}
785
57b61080
SF		 786static int rtnl_vf_ports_fill(struct sk_buff *skb, struct net_device *dev)
787{
788 struct nlattr *vf_ports;
789 struct nlattr *vf_port;
790 int vf;
791 int err;
792
793 vf_ports = nla_nest_start(skb, IFLA_VF_PORTS);
794 if (!vf_ports)
795 return -EMSGSIZE;
796
797 for (vf = 0; vf < dev_num_vf(dev->dev.parent); vf++) {
798 vf_port = nla_nest_start(skb, IFLA_VF_PORT);
8ca94183
SF		 799 if (!vf_port)
800 goto nla_put_failure;
a6574349
DM		 801 if (nla_put_u32(skb, IFLA_PORT_VF, vf))
802 goto nla_put_failure;
57b61080 803 err = dev->netdev_ops->ndo_get_vf_port(dev, vf, skb);
8ca94183
SF		 804 if (err == -EMSGSIZE)
805 goto nla_put_failure;
57b61080 806 if (err) {
57b61080
SF		 807 nla_nest_cancel(skb, vf_port);
808 continue;
809 }
810 nla_nest_end(skb, vf_port);
811 }
812
813 nla_nest_end(skb, vf_ports);
814
815 return 0;
8ca94183
SF		 816
817nla_put_failure:
818 nla_nest_cancel(skb, vf_ports);
819 return -EMSGSIZE;
57b61080
SF		 820}
821
822static int rtnl_port_self_fill(struct sk_buff *skb, struct net_device *dev)
823{
824 struct nlattr *port_self;
825 int err;
826
827 port_self = nla_nest_start(skb, IFLA_PORT_SELF);
828 if (!port_self)
829 return -EMSGSIZE;
830
831 err = dev->netdev_ops->ndo_get_vf_port(dev, PORT_SELF_VF, skb);
832 if (err) {
833 nla_nest_cancel(skb, port_self);
8ca94183 834 return (err == -EMSGSIZE) ? err : 0;
57b61080
SF		 835 }
836
837 nla_nest_end(skb, port_self);
838
839 return 0;
840}
841
fd9fcd8a
DG		 842static int rtnl_port_fill(struct sk_buff *skb, struct net_device *dev,
843 u32 ext_filter_mask)
57b61080
SF		 844{
845 int err;
846
fd9fcd8a
DG		 847 if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent ||
848 !(ext_filter_mask & RTEXT_FILTER_VF))
57b61080
SF		 849 return 0;
850
851 err = rtnl_port_self_fill(skb, dev);
852 if (err)
853 return err;
854
855 if (dev_num_vf(dev->dev.parent)) {
856 err = rtnl_vf_ports_fill(skb, dev);
857 if (err)
858 return err;
859 }
860
861 return 0;
862}
863
b60c5115 864static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
575c3e2a 865 int type, u32 pid, u32 seq, u32 change,
115c9b81 866 unsigned int flags, u32 ext_filter_mask)
b60c5115
TG		 867{
868 struct ifinfomsg *ifm;
869 struct nlmsghdr *nlh;
28172739 870 struct rtnl_link_stats64 temp;
be1f3c2c 871 const struct rtnl_link_stats64 *stats;
f8ff182c
TG		 872 struct nlattr *attr, *af_spec;
873 struct rtnl_af_ops *af_ops;
898e5061 874 struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
1da177e4 875
2907c35f 876 ASSERT_RTNL();
b60c5115
TG		 877 nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
878 if (nlh == NULL)
26932566 879 return -EMSGSIZE;
1da177e4 880
b60c5115
TG		 881 ifm = nlmsg_data(nlh);
882 ifm->ifi_family = AF_UNSPEC;
883 ifm->__ifi_pad = 0;
884 ifm->ifi_type = dev->type;
885 ifm->ifi_index = dev->ifindex;
886 ifm->ifi_flags = dev_get_flags(dev);
887 ifm->ifi_change = change;
888
a6574349
DM		 889 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
890 nla_put_u32(skb, IFLA_TXQLEN, dev->tx_queue_len) ||
891 nla_put_u8(skb, IFLA_OPERSTATE,
892 netif_running(dev) ? dev->operstate : IF_OPER_DOWN) ||
893 nla_put_u8(skb, IFLA_LINKMODE, dev->link_mode) ||
894 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
895 nla_put_u32(skb, IFLA_GROUP, dev->group) ||
edbc0bb3 896 nla_put_u32(skb, IFLA_PROMISCUITY, dev->promiscuity) ||
76ff5cc9 897 nla_put_u32(skb, IFLA_NUM_TX_QUEUES, dev->num_tx_queues) ||
1d69c2b3 898#ifdef CONFIG_RPS
76ff5cc9 899 nla_put_u32(skb, IFLA_NUM_RX_QUEUES, dev->num_rx_queues) ||
1d69c2b3 900#endif
a6574349
DM		 901 (dev->ifindex != dev->iflink &&
902 nla_put_u32(skb, IFLA_LINK, dev->iflink)) ||
898e5061
JP		 903 (upper_dev &&
904 nla_put_u32(skb, IFLA_MASTER, upper_dev->ifindex)) ||
9a57247f 905 nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
a6574349
DM		 906 (dev->qdisc &&
907 nla_put_string(skb, IFLA_QDISC, dev->qdisc->ops->id)) ||
908 (dev->ifalias &&
909 nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)))
910 goto nla_put_failure;
0b815a1a 911
1da177e4 912 if (1) {
f9d69142
KL		 913 struct rtnl_link_ifmap map;
914
915 memset(&map, 0, sizeof(map));
916 map.mem_start = dev->mem_start;
917 map.mem_end = dev->mem_end;
918 map.base_addr = dev->base_addr;
919 map.irq = dev->irq;
920 map.dma = dev->dma;
921 map.port = dev->if_port;
922
a6574349
DM		 923 if (nla_put(skb, IFLA_MAP, sizeof(map), &map))
924 goto nla_put_failure;
1da177e4
LT		 925 }
926
927 if (dev->addr_len) {
a6574349
DM		 928 if (nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr) ||
929 nla_put(skb, IFLA_BROADCAST, dev->addr_len, dev->broadcast))
930 goto nla_put_failure;
1da177e4
LT		 931 }
932
96e74088
PE		 933 attr = nla_reserve(skb, IFLA_STATS,
934 sizeof(struct rtnl_link_stats));
935 if (attr == NULL)
936 goto nla_put_failure;
b60c5115 937
28172739 938 stats = dev_get_stats(dev, &temp);
96e74088 939 copy_rtnl_link_stats(nla_data(attr), stats);
1da177e4 940
10708f37
JE		 941 attr = nla_reserve(skb, IFLA_STATS64,
942 sizeof(struct rtnl_link_stats64));
943 if (attr == NULL)
944 goto nla_put_failure;
10708f37
JE		 945 copy_rtnl_link_stats64(nla_data(attr), stats);
946
a6574349
DM		 947 if (dev->dev.parent && (ext_filter_mask & RTEXT_FILTER_VF) &&
948 nla_put_u32(skb, IFLA_NUM_VF, dev_num_vf(dev->dev.parent)))
949 goto nla_put_failure;
57b61080 950
115c9b81
GR		 951 if (dev->netdev_ops->ndo_get_vf_config && dev->dev.parent
952 && (ext_filter_mask & RTEXT_FILTER_VF)) {
ebc08a6f 953 int i;
ebc08a6f 954
c02db8c6
CW		 955 struct nlattr *vfinfo, *vf;
956 int num_vfs = dev_num_vf(dev->dev.parent);
957
c02db8c6
CW		 958 vfinfo = nla_nest_start(skb, IFLA_VFINFO_LIST);
959 if (!vfinfo)
960 goto nla_put_failure;
961 for (i = 0; i < num_vfs; i++) {
962 struct ifla_vf_info ivi;
963 struct ifla_vf_mac vf_mac;
964 struct ifla_vf_vlan vf_vlan;
965 struct ifla_vf_tx_rate vf_tx_rate;
5f8444a3
GR		 966 struct ifla_vf_spoofchk vf_spoofchk;
967
968 /*
969 * Not all SR-IOV capable drivers support the
970 * spoofcheck query. Preset to -1 so the user
971 * space tool can detect that the driver didn't
972 * report anything.
973 */
974 ivi.spoofchk = -1;
84d73cd3 975 memset(ivi.mac, 0, sizeof(ivi.mac));
ebc08a6f
WM		 976 if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi))
977 break;
5f8444a3
GR		 978 vf_mac.vf =
979 vf_vlan.vf =
980 vf_tx_rate.vf =
981 vf_spoofchk.vf = ivi.vf;
982
c02db8c6
CW		 983 memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
984 vf_vlan.vlan = ivi.vlan;
985 vf_vlan.qos = ivi.qos;
986 vf_tx_rate.rate = ivi.tx_rate;
5f8444a3 987 vf_spoofchk.setting = ivi.spoofchk;
c02db8c6
CW		 988 vf = nla_nest_start(skb, IFLA_VF_INFO);
989 if (!vf) {
990 nla_nest_cancel(skb, vfinfo);
991 goto nla_put_failure;
992 }
a6574349
DM		 993 if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
994 nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
995 nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
996 &vf_tx_rate) ||
997 nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
998 &vf_spoofchk))
999 goto nla_put_failure;
c02db8c6 1000 nla_nest_end(skb, vf);
ebc08a6f 1001 }
c02db8c6 1002 nla_nest_end(skb, vfinfo);
ebc08a6f 1003 }
57b61080 1004
fd9fcd8a 1005 if (rtnl_port_fill(skb, dev, ext_filter_mask))
57b61080
SF		 1006 goto nla_put_failure;
1007
38f7b870
PM		 1008 if (dev->rtnl_link_ops) {
1009 if (rtnl_link_fill(skb, dev) < 0)
1010 goto nla_put_failure;
1011 }
1012
f8ff182c
TG		 1013 if (!(af_spec = nla_nest_start(skb, IFLA_AF_SPEC)))
1014 goto nla_put_failure;
1015
1016 list_for_each_entry(af_ops, &rtnl_af_ops, list) {
1017 if (af_ops->fill_link_af) {
1018 struct nlattr *af;
1019 int err;
1020
1021 if (!(af = nla_nest_start(skb, af_ops->family)))
1022 goto nla_put_failure;
1023
1024 err = af_ops->fill_link_af(skb, dev);
1025
1026 /*
1027 * Caller may return ENODATA to indicate that there
1028 * was no data to be dumped. This is not an error, it
1029 * means we should trim the attribute header and
1030 * continue.
1031 */
1032 if (err == -ENODATA)
1033 nla_nest_cancel(skb, af);
1034 else if (err < 0)
1035 goto nla_put_failure;
1036
1037 nla_nest_end(skb, af);
1038 }
1039 }
1040
1041 nla_nest_end(skb, af_spec);
1042
b60c5115
TG		 1043 return nlmsg_end(skb, nlh);
1044
1045nla_put_failure:
26932566
PM		 1046 nlmsg_cancel(skb, nlh);
1047 return -EMSGSIZE;
1da177e4
LT		 1048}
1049
b60c5115 1050static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
1da177e4 1051{
3b1e0a65 1052 struct net *net = sock_net(skb->sk);
7c28bd0b
ED		 1053 int h, s_h;
1054 int idx = 0, s_idx;
1da177e4 1055 struct net_device *dev;
7c28bd0b 1056 struct hlist_head *head;
115c9b81
GR		 1057 struct nlattr *tb[IFLA_MAX+1];
1058 u32 ext_filter_mask = 0;
1ab27dd7 1059 int err;
fb0d10bf 1060 int hdrlen;
7c28bd0b
ED		 1061
1062 s_h = cb->args[0];
1063 s_idx = cb->args[1];
1064
e67f88dd 1065 rcu_read_lock();
4e985ada
TG		 1066 cb->seq = net->dev_base_seq;
1067
fb0d10bf
MS		 1068 /* A hack to preserve kernel<->userspace interface.
1069 * The correct header is ifinfomsg. It is consistent with rtnl_getlink.
1070 * However, before Linux v3.9 the code here assumed rtgenmsg and that's
1071 * what iproute2 < v3.9.0 used.
1072 * We can detect the old iproute2. Even including the IFLA_EXT_MASK
1073 * attribute, its netlink message is shorter than struct ifinfomsg.
1074 */
1075 hdrlen = nlmsg_len(cb->nlh) < sizeof(struct ifinfomsg) ?
1076 sizeof(struct rtgenmsg) : sizeof(struct ifinfomsg);
1077
1078 if (nlmsg_parse(cb->nlh, hdrlen, tb, IFLA_MAX, ifla_policy) >= 0) {
115c9b81 1079
a4b64fbe
ED		 1080 if (tb[IFLA_EXT_MASK])
1081 ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
1082 }
115c9b81 1083
7c28bd0b
ED		 1084 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
1085 idx = 0;
1086 head = &net->dev_index_head[h];
b67bfe0d 1087 hlist_for_each_entry_rcu(dev, head, index_hlist) {
7c28bd0b
ED		 1088 if (idx < s_idx)
1089 goto cont;
1ab27dd7
DG		 1090 err = rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
1091 NETLINK_CB(cb->skb).portid,
1092 cb->nlh->nlmsg_seq, 0,
1093 NLM_F_MULTI,
1094 ext_filter_mask);
1095 /* If we ran out of room on the first message,
1096 * we're in trouble
1097 */
1098 WARN_ON((err == -EMSGSIZE) && (skb->len == 0));
1099
1100 if (err <= 0)
7c28bd0b 1101 goto out;
4e985ada
TG		 1102
1103 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
7562f876 1104cont:
7c28bd0b
ED		 1105 idx++;
1106 }
1da177e4 1107 }
7c28bd0b 1108out:
e67f88dd 1109 rcu_read_unlock();
7c28bd0b
ED		 1110 cb->args[1] = idx;
1111 cb->args[0] = h;
1da177e4
LT		 1112
1113 return skb->len;
1114}
1115
e7199288 1116const struct nla_policy ifla_policy[IFLA_MAX+1] = {
5176f91e 1117 [IFLA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ-1 },
38f7b870
PM		 1118 [IFLA_ADDRESS] = { .type = NLA_BINARY, .len = MAX_ADDR_LEN },
1119 [IFLA_BROADCAST] = { .type = NLA_BINARY, .len = MAX_ADDR_LEN },
5176f91e 1120 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
da5e0494 1121 [IFLA_MTU] = { .type = NLA_U32 },
76e87306 1122 [IFLA_LINK] = { .type = NLA_U32 },
fbaec0ea 1123 [IFLA_MASTER] = { .type = NLA_U32 },
9a57247f 1124 [IFLA_CARRIER] = { .type = NLA_U8 },
da5e0494
TG		 1125 [IFLA_TXQLEN] = { .type = NLA_U32 },
1126 [IFLA_WEIGHT] = { .type = NLA_U32 },
1127 [IFLA_OPERSTATE] = { .type = NLA_U8 },
1128 [IFLA_LINKMODE] = { .type = NLA_U8 },
76e87306 1129 [IFLA_LINKINFO] = { .type = NLA_NESTED },
d8a5ec67 1130 [IFLA_NET_NS_PID] = { .type = NLA_U32 },
f0630529 1131 [IFLA_NET_NS_FD] = { .type = NLA_U32 },
0b815a1a 1132 [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
c02db8c6 1133 [IFLA_VFINFO_LIST] = {. type = NLA_NESTED },
57b61080
SF		 1134 [IFLA_VF_PORTS] = { .type = NLA_NESTED },
1135 [IFLA_PORT_SELF] = { .type = NLA_NESTED },
f8ff182c 1136 [IFLA_AF_SPEC] = { .type = NLA_NESTED },
115c9b81 1137 [IFLA_EXT_MASK] = { .type = NLA_U32 },
edbc0bb3 1138 [IFLA_PROMISCUITY] = { .type = NLA_U32 },
76ff5cc9
JP		 1139 [IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 },
1140 [IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 },
da5e0494 1141};
e0d087af 1142EXPORT_SYMBOL(ifla_policy);
da5e0494 1143
38f7b870
PM		 1144static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
1145 [IFLA_INFO_KIND] = { .type = NLA_STRING },
1146 [IFLA_INFO_DATA] = { .type = NLA_NESTED },
1147};
1148
c02db8c6
CW		 1149static const struct nla_policy ifla_vfinfo_policy[IFLA_VF_INFO_MAX+1] = {
1150 [IFLA_VF_INFO] = { .type = NLA_NESTED },
1151};
1152
1153static const struct nla_policy ifla_vf_policy[IFLA_VF_MAX+1] = {
1671763b
DB		 1154 [IFLA_VF_MAC] = { .len = sizeof(struct ifla_vf_mac) },
1155 [IFLA_VF_VLAN] = { .len = sizeof(struct ifla_vf_vlan) },
1156 [IFLA_VF_TX_RATE] = { .len = sizeof(struct ifla_vf_tx_rate) },
1157 [IFLA_VF_SPOOFCHK] = { .len = sizeof(struct ifla_vf_spoofchk) },
c02db8c6
CW		 1158};
1159
57b61080
SF		 1160static const struct nla_policy ifla_port_policy[IFLA_PORT_MAX+1] = {
1161 [IFLA_PORT_VF] = { .type = NLA_U32 },
1162 [IFLA_PORT_PROFILE] = { .type = NLA_STRING,
1163 .len = PORT_PROFILE_MAX },
1164 [IFLA_PORT_VSI_TYPE] = { .type = NLA_BINARY,
1165 .len = sizeof(struct ifla_port_vsi)},
1166 [IFLA_PORT_INSTANCE_UUID] = { .type = NLA_BINARY,
1167 .len = PORT_UUID_MAX },
1168 [IFLA_PORT_HOST_UUID] = { .type = NLA_STRING,
1169 .len = PORT_UUID_MAX },
1170 [IFLA_PORT_REQUEST] = { .type = NLA_U8, },
1171 [IFLA_PORT_RESPONSE] = { .type = NLA_U16, },
1172};
1173
81adee47
EB		 1174struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[])
1175{
1176 struct net *net;
1177 /* Examine the link attributes and figure out which
1178 * network namespace we are talking about.
1179 */
1180 if (tb[IFLA_NET_NS_PID])
1181 net = get_net_ns_by_pid(nla_get_u32(tb[IFLA_NET_NS_PID]));
f0630529
EB		 1182 else if (tb[IFLA_NET_NS_FD])
1183 net = get_net_ns_by_fd(nla_get_u32(tb[IFLA_NET_NS_FD]));
81adee47
EB		 1184 else
1185 net = get_net(src_net);
1186 return net;
1187}
1188EXPORT_SYMBOL(rtnl_link_get_net);
1189
1840bb13
TG		 1190static int validate_linkmsg(struct net_device *dev, struct nlattr *tb[])
1191{
1192 if (dev) {
1193 if (tb[IFLA_ADDRESS] &&
1194 nla_len(tb[IFLA_ADDRESS]) < dev->addr_len)
1195 return -EINVAL;
1196
1197 if (tb[IFLA_BROADCAST] &&
1198 nla_len(tb[IFLA_BROADCAST]) < dev->addr_len)
1199 return -EINVAL;
1200 }
1201
cf7afbfe
TG		 1202 if (tb[IFLA_AF_SPEC]) {
1203 struct nlattr *af;
1204 int rem, err;
1205
1206 nla_for_each_nested(af, tb[IFLA_AF_SPEC], rem) {
1207 const struct rtnl_af_ops *af_ops;
1208
1209 if (!(af_ops = rtnl_af_lookup(nla_type(af))))
1210 return -EAFNOSUPPORT;
1211
1212 if (!af_ops->set_link_af)
1213 return -EOPNOTSUPP;
1214
1215 if (af_ops->validate_link_af) {
6d3a9a68 1216 err = af_ops->validate_link_af(dev, af);
cf7afbfe
TG		 1217 if (err < 0)
1218 return err;
1219 }
1220 }
1221 }
1222
1840bb13
TG		 1223 return 0;
1224}
1225
c02db8c6
CW		 1226static int do_setvfinfo(struct net_device *dev, struct nlattr *attr)
1227{
1228 int rem, err = -EINVAL;
1229 struct nlattr *vf;
1230 const struct net_device_ops *ops = dev->netdev_ops;
1231
1232 nla_for_each_nested(vf, attr, rem) {
1233 switch (nla_type(vf)) {
1234 case IFLA_VF_MAC: {
1235 struct ifla_vf_mac *ivm;
1236 ivm = nla_data(vf);
1237 err = -EOPNOTSUPP;
1238 if (ops->ndo_set_vf_mac)
1239 err = ops->ndo_set_vf_mac(dev, ivm->vf,
1240 ivm->mac);
1241 break;
1242 }
1243 case IFLA_VF_VLAN: {
1244 struct ifla_vf_vlan *ivv;
1245 ivv = nla_data(vf);
1246 err = -EOPNOTSUPP;
1247 if (ops->ndo_set_vf_vlan)
1248 err = ops->ndo_set_vf_vlan(dev, ivv->vf,
1249 ivv->vlan,
1250 ivv->qos);
1251 break;
1252 }
1253 case IFLA_VF_TX_RATE: {
1254 struct ifla_vf_tx_rate *ivt;
1255 ivt = nla_data(vf);
1256 err = -EOPNOTSUPP;
1257 if (ops->ndo_set_vf_tx_rate)
1258 err = ops->ndo_set_vf_tx_rate(dev, ivt->vf,
1259 ivt->rate);
1260 break;
1261 }
5f8444a3
GR		 1262 case IFLA_VF_SPOOFCHK: {
1263 struct ifla_vf_spoofchk *ivs;
1264 ivs = nla_data(vf);
1265 err = -EOPNOTSUPP;
1266 if (ops->ndo_set_vf_spoofchk)
1267 err = ops->ndo_set_vf_spoofchk(dev, ivs->vf,
1268 ivs->setting);
1269 break;
1270 }
c02db8c6
CW		 1271 default:
1272 err = -EINVAL;
1273 break;
1274 }
1275 if (err)
1276 break;
1277 }
1278 return err;
1279}
1280
fbaec0ea
JP		 1281static int do_set_master(struct net_device *dev, int ifindex)
1282{
898e5061 1283 struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
fbaec0ea
JP		 1284 const struct net_device_ops *ops;
1285 int err;
1286
898e5061
JP		 1287 if (upper_dev) {
1288 if (upper_dev->ifindex == ifindex)
fbaec0ea 1289 return 0;
898e5061 1290 ops = upper_dev->netdev_ops;
fbaec0ea 1291 if (ops->ndo_del_slave) {
898e5061 1292 err = ops->ndo_del_slave(upper_dev, dev);
fbaec0ea
JP		 1293 if (err)
1294 return err;
1295 } else {
1296 return -EOPNOTSUPP;
1297 }
1298 }
1299
1300 if (ifindex) {
898e5061
JP		 1301 upper_dev = __dev_get_by_index(dev_net(dev), ifindex);
1302 if (!upper_dev)
fbaec0ea 1303 return -EINVAL;
898e5061 1304 ops = upper_dev->netdev_ops;
fbaec0ea 1305 if (ops->ndo_add_slave) {
898e5061 1306 err = ops->ndo_add_slave(upper_dev, dev);
fbaec0ea
JP		 1307 if (err)
1308 return err;
1309 } else {
1310 return -EOPNOTSUPP;
1311 }
1312 }
1313 return 0;
1314}
1315
1141a455
EB		 1316static int do_setlink(const struct sk_buff *skb,
1317 struct net_device *dev, struct ifinfomsg *ifm,
38f7b870 1318 struct nlattr **tb, char *ifname, int modified)
1da177e4 1319{
d314774c 1320 const struct net_device_ops *ops = dev->netdev_ops;
0157f60c 1321 int err;
1da177e4 1322
f0630529 1323 if (tb[IFLA_NET_NS_PID] || tb[IFLA_NET_NS_FD]) {
81adee47 1324 struct net *net = rtnl_link_get_net(dev_net(dev), tb);
d8a5ec67
EB		 1325 if (IS_ERR(net)) {
1326 err = PTR_ERR(net);
1327 goto errout;
1328 }
1141a455 1329 if (!netlink_ns_capable(skb, net->user_ns, CAP_NET_ADMIN)) {
1973ac37 1330 put_net(net);
b51642f6
EB		 1331 err = -EPERM;
1332 goto errout;
1333 }
d8a5ec67
EB		 1334 err = dev_change_net_namespace(dev, net, ifname);
1335 put_net(net);
1336 if (err)
1337 goto errout;
1338 modified = 1;
1339 }
1340
da5e0494 1341 if (tb[IFLA_MAP]) {
1da177e4
LT		 1342 struct rtnl_link_ifmap *u_map;
1343 struct ifmap k_map;
1344
d314774c 1345 if (!ops->ndo_set_config) {
1da177e4 1346 err = -EOPNOTSUPP;
0157f60c 1347 goto errout;
1da177e4
LT		 1348 }
1349
1350 if (!netif_device_present(dev)) {
1351 err = -ENODEV;
0157f60c 1352 goto errout;
1da177e4 1353 }
1da177e4 1354
da5e0494 1355 u_map = nla_data(tb[IFLA_MAP]);
1da177e4
LT		 1356 k_map.mem_start = (unsigned long) u_map->mem_start;
1357 k_map.mem_end = (unsigned long) u_map->mem_end;
1358 k_map.base_addr = (unsigned short) u_map->base_addr;
1359 k_map.irq = (unsigned char) u_map->irq;
1360 k_map.dma = (unsigned char) u_map->dma;
1361 k_map.port = (unsigned char) u_map->port;
1362
d314774c 1363 err = ops->ndo_set_config(dev, &k_map);
da5e0494 1364 if (err < 0)
0157f60c 1365 goto errout;
1da177e4 1366
da5e0494 1367 modified = 1;
1da177e4
LT		 1368 }
1369
da5e0494 1370 if (tb[IFLA_ADDRESS]) {
70f8e78e
DM		 1371 struct sockaddr *sa;
1372 int len;
1373
70f8e78e
DM		 1374 len = sizeof(sa_family_t) + dev->addr_len;
1375 sa = kmalloc(len, GFP_KERNEL);
1376 if (!sa) {
1377 err = -ENOMEM;
0157f60c 1378 goto errout;
70f8e78e
DM		 1379 }
1380 sa->sa_family = dev->type;
da5e0494 1381 memcpy(sa->sa_data, nla_data(tb[IFLA_ADDRESS]),
70f8e78e 1382 dev->addr_len);
e7c3273e 1383 err = dev_set_mac_address(dev, sa);
70f8e78e 1384 kfree(sa);
1da177e4 1385 if (err)
0157f60c 1386 goto errout;
da5e0494 1387 modified = 1;
1da177e4
LT		 1388 }
1389
da5e0494
TG		 1390 if (tb[IFLA_MTU]) {
1391 err = dev_set_mtu(dev, nla_get_u32(tb[IFLA_MTU]));
1392 if (err < 0)
0157f60c 1393 goto errout;
da5e0494 1394 modified = 1;
1da177e4
LT		 1395 }
1396
cbda10fa
VD		 1397 if (tb[IFLA_GROUP]) {
1398 dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP]));
1399 modified = 1;
1400 }
1401
da5e0494
TG		 1402 /*
1403 * Interface selected by interface index but interface
1404 * name provided implies that a name change has been
1405 * requested.
1406 */
51055be8 1407 if (ifm->ifi_index > 0 && ifname[0]) {
da5e0494
TG		 1408 err = dev_change_name(dev, ifname);
1409 if (err < 0)
0157f60c 1410 goto errout;
da5e0494 1411 modified = 1;
1da177e4
LT		 1412 }
1413
0b815a1a
SH		 1414 if (tb[IFLA_IFALIAS]) {
1415 err = dev_set_alias(dev, nla_data(tb[IFLA_IFALIAS]),
1416 nla_len(tb[IFLA_IFALIAS]));
1417 if (err < 0)
1418 goto errout;
1419 modified = 1;
1420 }
1421
da5e0494
TG		 1422 if (tb[IFLA_BROADCAST]) {
1423 nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
e7c3273e 1424 call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
1da177e4
LT		 1425 }
1426
83b496e9 1427 if (ifm->ifi_flags || ifm->ifi_change) {
3729d502 1428 err = dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm));
5f9021cf
JB		 1429 if (err < 0)
1430 goto errout;
83b496e9 1431 }
1da177e4 1432
fbaec0ea
JP		 1433 if (tb[IFLA_MASTER]) {
1434 err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]));
1435 if (err)
1436 goto errout;
1437 modified = 1;
1438 }
1439
9a57247f
JP		 1440 if (tb[IFLA_CARRIER]) {
1441 err = dev_change_carrier(dev, nla_get_u8(tb[IFLA_CARRIER]));
1442 if (err)
1443 goto errout;
1444 modified = 1;
1445 }
1446
93b2d4a2
DM		 1447 if (tb[IFLA_TXQLEN])
1448 dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
b00055aa 1449
da5e0494 1450 if (tb[IFLA_OPERSTATE])
93b2d4a2 1451 set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
b00055aa 1452
da5e0494 1453 if (tb[IFLA_LINKMODE]) {
93b2d4a2
DM		 1454 write_lock_bh(&dev_base_lock);
1455 dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
1456 write_unlock_bh(&dev_base_lock);
b00055aa
SR		 1457 }
1458
c02db8c6
CW		 1459 if (tb[IFLA_VFINFO_LIST]) {
1460 struct nlattr *attr;
1461 int rem;
1462 nla_for_each_nested(attr, tb[IFLA_VFINFO_LIST], rem) {
253683bb
DH		 1463 if (nla_type(attr) != IFLA_VF_INFO) {
1464 err = -EINVAL;
c02db8c6 1465 goto errout;
253683bb 1466 }
c02db8c6
CW		 1467 err = do_setvfinfo(dev, attr);
1468 if (err < 0)
1469 goto errout;
1470 modified = 1;
1471 }
ebc08a6f 1472 }
1da177e4
LT		 1473 err = 0;
1474
57b61080
SF		 1475 if (tb[IFLA_VF_PORTS]) {
1476 struct nlattr *port[IFLA_PORT_MAX+1];
1477 struct nlattr *attr;
1478 int vf;
1479 int rem;
1480
1481 err = -EOPNOTSUPP;
1482 if (!ops->ndo_set_vf_port)
1483 goto errout;
1484
1485 nla_for_each_nested(attr, tb[IFLA_VF_PORTS], rem) {
1486 if (nla_type(attr) != IFLA_VF_PORT)
1487 continue;
1488 err = nla_parse_nested(port, IFLA_PORT_MAX,
1489 attr, ifla_port_policy);
1490 if (err < 0)
1491 goto errout;
1492 if (!port[IFLA_PORT_VF]) {
1493 err = -EOPNOTSUPP;
1494 goto errout;
1495 }
1496 vf = nla_get_u32(port[IFLA_PORT_VF]);
1497 err = ops->ndo_set_vf_port(dev, vf, port);
1498 if (err < 0)
1499 goto errout;
1500 modified = 1;
1501 }
1502 }
1503 err = 0;
1504
1505 if (tb[IFLA_PORT_SELF]) {
1506 struct nlattr *port[IFLA_PORT_MAX+1];
1507
1508 err = nla_parse_nested(port, IFLA_PORT_MAX,
1509 tb[IFLA_PORT_SELF], ifla_port_policy);
1510 if (err < 0)
1511 goto errout;
1512
1513 err = -EOPNOTSUPP;
1514 if (ops->ndo_set_vf_port)
1515 err = ops->ndo_set_vf_port(dev, PORT_SELF_VF, port);
1516 if (err < 0)
1517 goto errout;
1518 modified = 1;
1519 }
f8ff182c
TG		 1520
1521 if (tb[IFLA_AF_SPEC]) {
1522 struct nlattr *af;
1523 int rem;
1524
1525 nla_for_each_nested(af, tb[IFLA_AF_SPEC], rem) {
1526 const struct rtnl_af_ops *af_ops;
1527
1528 if (!(af_ops = rtnl_af_lookup(nla_type(af))))
cf7afbfe 1529 BUG();
f8ff182c 1530
cf7afbfe 1531 err = af_ops->set_link_af(dev, af);
f8ff182c
TG		 1532 if (err < 0)
1533 goto errout;
1534
1535 modified = 1;
1536 }
1537 }
57b61080
SF		 1538 err = 0;
1539
0157f60c 1540errout:
e87cc472
JP		 1541 if (err < 0 && modified)
1542 net_warn_ratelimited("A link change request failed with some changes committed already. Interface %s may have been left with an inconsistent configuration, please check.\n",
1543 dev->name);
da5e0494 1544
0157f60c
PM		 1545 return err;
1546}
1da177e4 1547
661d2967 1548static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
0157f60c 1549{
3b1e0a65 1550 struct net *net = sock_net(skb->sk);
0157f60c
PM		 1551 struct ifinfomsg *ifm;
1552 struct net_device *dev;
1553 int err;
1554 struct nlattr *tb[IFLA_MAX+1];
1555 char ifname[IFNAMSIZ];
1556
1557 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1558 if (err < 0)
1559 goto errout;
1560
1561 if (tb[IFLA_IFNAME])
1562 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1563 else
1564 ifname[0] = '\0';
1565
1566 err = -EINVAL;
1567 ifm = nlmsg_data(nlh);
1568 if (ifm->ifi_index > 0)
a3d12891 1569 dev = __dev_get_by_index(net, ifm->ifi_index);
0157f60c 1570 else if (tb[IFLA_IFNAME])
a3d12891 1571 dev = __dev_get_by_name(net, ifname);
0157f60c
PM		 1572 else
1573 goto errout;
1574
1575 if (dev == NULL) {
1576 err = -ENODEV;
1577 goto errout;
1578 }
1579
e0d087af
ED		 1580 err = validate_linkmsg(dev, tb);
1581 if (err < 0)
a3d12891 1582 goto errout;
0157f60c 1583
1141a455 1584 err = do_setlink(skb, dev, ifm, tb, ifname, 0);
da5e0494 1585errout:
1da177e4
LT		 1586 return err;
1587}
1588
661d2967 1589static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)
38f7b870 1590{
3b1e0a65 1591 struct net *net = sock_net(skb->sk);
38f7b870
PM		 1592 const struct rtnl_link_ops *ops;
1593 struct net_device *dev;
1594 struct ifinfomsg *ifm;
1595 char ifname[IFNAMSIZ];
1596 struct nlattr *tb[IFLA_MAX+1];
1597 int err;
226bd341 1598 LIST_HEAD(list_kill);
38f7b870
PM		 1599
1600 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1601 if (err < 0)
1602 return err;
1603
1604 if (tb[IFLA_IFNAME])
1605 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1606
1607 ifm = nlmsg_data(nlh);
1608 if (ifm->ifi_index > 0)
881d966b 1609 dev = __dev_get_by_index(net, ifm->ifi_index);
38f7b870 1610 else if (tb[IFLA_IFNAME])
881d966b 1611 dev = __dev_get_by_name(net, ifname);
38f7b870
PM		 1612 else
1613 return -EINVAL;
1614
1615 if (!dev)
1616 return -ENODEV;
1617
1618 ops = dev->rtnl_link_ops;
1619 if (!ops)
1620 return -EOPNOTSUPP;
1621
226bd341
ED		 1622 ops->dellink(dev, &list_kill);
1623 unregister_netdevice_many(&list_kill);
38f7b870
PM		 1624 return 0;
1625}
1626
3729d502
PM		 1627int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
1628{
1629 unsigned int old_flags;
1630 int err;
1631
1632 old_flags = dev->flags;
1633 if (ifm && (ifm->ifi_flags || ifm->ifi_change)) {
1634 err = __dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm));
1635 if (err < 0)
1636 return err;
1637 }
1638
1639 dev->rtnl_link_state = RTNL_LINK_INITIALIZED;
1640 rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U);
1641
1642 __dev_notify_flags(dev, old_flags);
1643 return 0;
1644}
1645EXPORT_SYMBOL(rtnl_configure_link);
1646
c0713563 1647struct net_device *rtnl_create_link(struct net *net,
81adee47 1648 char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[])
e7199288
PE		 1649{
1650 int err;
1651 struct net_device *dev;
d40156aa
JP		 1652 unsigned int num_tx_queues = 1;
1653 unsigned int num_rx_queues = 1;
e7199288 1654
76ff5cc9
JP		 1655 if (tb[IFLA_NUM_TX_QUEUES])
1656 num_tx_queues = nla_get_u32(tb[IFLA_NUM_TX_QUEUES]);
1657 else if (ops->get_num_tx_queues)
d40156aa 1658 num_tx_queues = ops->get_num_tx_queues();
76ff5cc9
JP		 1659
1660 if (tb[IFLA_NUM_RX_QUEUES])
1661 num_rx_queues = nla_get_u32(tb[IFLA_NUM_RX_QUEUES]);
1662 else if (ops->get_num_rx_queues)
d40156aa 1663 num_rx_queues = ops->get_num_rx_queues();
efacb309 1664
e7199288 1665 err = -ENOMEM;
d40156aa
JP		 1666 dev = alloc_netdev_mqs(ops->priv_size, ifname, ops->setup,
1667 num_tx_queues, num_rx_queues);
e7199288
PE		 1668 if (!dev)
1669 goto err;
1670
81adee47
EB		 1671 dev_net_set(dev, net);
1672 dev->rtnl_link_ops = ops;
3729d502 1673 dev->rtnl_link_state = RTNL_LINK_INITIALIZING;
81adee47 1674
e7199288
PE		 1675 if (tb[IFLA_MTU])
1676 dev->mtu = nla_get_u32(tb[IFLA_MTU]);
2afb9b53 1677 if (tb[IFLA_ADDRESS]) {
e7199288
PE		 1678 memcpy(dev->dev_addr, nla_data(tb[IFLA_ADDRESS]),
1679 nla_len(tb[IFLA_ADDRESS]));
2afb9b53
JP		 1680 dev->addr_assign_type = NET_ADDR_SET;
1681 }
e7199288
PE		 1682 if (tb[IFLA_BROADCAST])
1683 memcpy(dev->broadcast, nla_data(tb[IFLA_BROADCAST]),
1684 nla_len(tb[IFLA_BROADCAST]));
1685 if (tb[IFLA_TXQLEN])
1686 dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
1687 if (tb[IFLA_OPERSTATE])
93b2d4a2 1688 set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
e7199288
PE		 1689 if (tb[IFLA_LINKMODE])
1690 dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
ffa934f1
PM		 1691 if (tb[IFLA_GROUP])
1692 dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP]));
e7199288
PE		 1693
1694 return dev;
1695
e7199288
PE		 1696err:
1697 return ERR_PTR(err);
1698}
e0d087af 1699EXPORT_SYMBOL(rtnl_create_link);
e7199288 1700
1141a455
EB		 1701static int rtnl_group_changelink(const struct sk_buff *skb,
1702 struct net *net, int group,
e7ed828f
VD		 1703 struct ifinfomsg *ifm,
1704 struct nlattr **tb)
1705{
1706 struct net_device *dev;
1707 int err;
1708
1709 for_each_netdev(net, dev) {
1710 if (dev->group == group) {
1141a455 1711 err = do_setlink(skb, dev, ifm, tb, NULL, 0);
e7ed828f
VD		 1712 if (err < 0)
1713 return err;
1714 }
1715 }
1716
1717 return 0;
1718}
1719
661d2967 1720static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh)
38f7b870 1721{
3b1e0a65 1722 struct net *net = sock_net(skb->sk);
38f7b870
PM		 1723 const struct rtnl_link_ops *ops;
1724 struct net_device *dev;
1725 struct ifinfomsg *ifm;
1726 char kind[MODULE_NAME_LEN];
1727 char ifname[IFNAMSIZ];
1728 struct nlattr *tb[IFLA_MAX+1];
1729 struct nlattr *linkinfo[IFLA_INFO_MAX+1];
1730 int err;
1731
95a5afca 1732#ifdef CONFIG_MODULES
38f7b870 1733replay:
8072f085 1734#endif
38f7b870
PM		 1735 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1736 if (err < 0)
1737 return err;
1738
1739 if (tb[IFLA_IFNAME])
1740 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1741 else
1742 ifname[0] = '\0';
1743
1744 ifm = nlmsg_data(nlh);
1745 if (ifm->ifi_index > 0)
881d966b 1746 dev = __dev_get_by_index(net, ifm->ifi_index);
e7ed828f
VD		 1747 else {
1748 if (ifname[0])
1749 dev = __dev_get_by_name(net, ifname);
e7ed828f
VD		 1750 else
1751 dev = NULL;
1752 }
38f7b870 1753
e0d087af
ED		 1754 err = validate_linkmsg(dev, tb);
1755 if (err < 0)
1840bb13
TG		 1756 return err;
1757
38f7b870
PM		 1758 if (tb[IFLA_LINKINFO]) {
1759 err = nla_parse_nested(linkinfo, IFLA_INFO_MAX,
1760 tb[IFLA_LINKINFO], ifla_info_policy);
1761 if (err < 0)
1762 return err;
1763 } else
1764 memset(linkinfo, 0, sizeof(linkinfo));
1765
1766 if (linkinfo[IFLA_INFO_KIND]) {
1767 nla_strlcpy(kind, linkinfo[IFLA_INFO_KIND], sizeof(kind));
1768 ops = rtnl_link_ops_get(kind);
1769 } else {
1770 kind[0] = '\0';
1771 ops = NULL;
1772 }
1773
1774 if (1) {
1775 struct nlattr *attr[ops ? ops->maxtype + 1 : 0], **data = NULL;
81adee47 1776 struct net *dest_net;
38f7b870
PM		 1777
1778 if (ops) {
1779 if (ops->maxtype && linkinfo[IFLA_INFO_DATA]) {
1780 err = nla_parse_nested(attr, ops->maxtype,
1781 linkinfo[IFLA_INFO_DATA],
1782 ops->policy);
1783 if (err < 0)
1784 return err;
1785 data = attr;
1786 }
1787 if (ops->validate) {
1788 err = ops->validate(tb, data);
1789 if (err < 0)
1790 return err;
1791 }
1792 }
1793
1794 if (dev) {
1795 int modified = 0;
1796
1797 if (nlh->nlmsg_flags & NLM_F_EXCL)
1798 return -EEXIST;
1799 if (nlh->nlmsg_flags & NLM_F_REPLACE)
1800 return -EOPNOTSUPP;
1801
1802 if (linkinfo[IFLA_INFO_DATA]) {
1803 if (!ops || ops != dev->rtnl_link_ops ||
1804 !ops->changelink)
1805 return -EOPNOTSUPP;
1806
1807 err = ops->changelink(dev, tb, data);
1808 if (err < 0)
1809 return err;
1810 modified = 1;
1811 }
1812
1141a455 1813 return do_setlink(skb, dev, ifm, tb, ifname, modified);
38f7b870
PM		 1814 }
1815
ffa934f1
PM		 1816 if (!(nlh->nlmsg_flags & NLM_F_CREATE)) {
1817 if (ifm->ifi_index == 0 && tb[IFLA_GROUP])
1141a455 1818 return rtnl_group_changelink(skb, net,
ffa934f1
PM		 1819 nla_get_u32(tb[IFLA_GROUP]),
1820 ifm, tb);
38f7b870 1821 return -ENODEV;
ffa934f1 1822 }
38f7b870 1823
0e06877c 1824 if (tb[IFLA_MAP] || tb[IFLA_MASTER] || tb[IFLA_PROTINFO])
38f7b870
PM		 1825 return -EOPNOTSUPP;
1826
1827 if (!ops) {
95a5afca 1828#ifdef CONFIG_MODULES
38f7b870
PM		 1829 if (kind[0]) {
1830 __rtnl_unlock();
1831 request_module("rtnl-link-%s", kind);
1832 rtnl_lock();
1833 ops = rtnl_link_ops_get(kind);
1834 if (ops)
1835 goto replay;
1836 }
1837#endif
1838 return -EOPNOTSUPP;
1839 }
1840
1841 if (!ifname[0])
1842 snprintf(ifname, IFNAMSIZ, "%s%%d", ops->kind);
e7199288 1843
81adee47 1844 dest_net = rtnl_link_get_net(net, tb);
13ad1774
EB		 1845 if (IS_ERR(dest_net))
1846 return PTR_ERR(dest_net);
1847
c0713563 1848 dev = rtnl_create_link(dest_net, ifname, ops, tb);
9c7dafbf 1849 if (IS_ERR(dev)) {
e7199288 1850 err = PTR_ERR(dev);
9c7dafbf
PE		 1851 goto out;
1852 }
1853
1854 dev->ifindex = ifm->ifi_index;
1855
1856 if (ops->newlink)
81adee47 1857 err = ops->newlink(net, dev, tb, data);
2d85cba2
PM		 1858 else
1859 err = register_netdevice(dev);
80032cff
DC		 1860
1861 if (err < 0 && !IS_ERR(dev))
38f7b870 1862 free_netdev(dev);
80032cff 1863 if (err < 0)
3729d502 1864 goto out;
81adee47 1865
3729d502 1866 err = rtnl_configure_link(dev, ifm);
140b057c
WC		 1867 if (err < 0) {
1868 if (ops->newlink) {
1869 LIST_HEAD(list_kill);
1870
1871 ops->dellink(dev, &list_kill);
1872 unregister_netdevice_many(&list_kill);
1873 } else {
1874 unregister_netdevice(dev);
1875 }
1876 }
3729d502 1877out:
81adee47 1878 put_net(dest_net);
38f7b870
PM		 1879 return err;
1880 }
1881}
1882
661d2967 1883static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh)
711e2c33 1884{
3b1e0a65 1885 struct net *net = sock_net(skb->sk);
b60c5115 1886 struct ifinfomsg *ifm;
a3d12891 1887 char ifname[IFNAMSIZ];
b60c5115
TG		 1888 struct nlattr *tb[IFLA_MAX+1];
1889 struct net_device *dev = NULL;
1890 struct sk_buff *nskb;
339bf98f 1891 int err;
115c9b81 1892 u32 ext_filter_mask = 0;
711e2c33 1893
b60c5115
TG		 1894 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1895 if (err < 0)
9918f230 1896 return err;
b60c5115 1897
a3d12891
ED		 1898 if (tb[IFLA_IFNAME])
1899 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1900
115c9b81
GR		 1901 if (tb[IFLA_EXT_MASK])
1902 ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
1903
b60c5115 1904 ifm = nlmsg_data(nlh);
a3d12891
ED		 1905 if (ifm->ifi_index > 0)
1906 dev = __dev_get_by_index(net, ifm->ifi_index);
1907 else if (tb[IFLA_IFNAME])
1908 dev = __dev_get_by_name(net, ifname);
1909 else
711e2c33 1910 return -EINVAL;
711e2c33 1911
a3d12891
ED		 1912 if (dev == NULL)
1913 return -ENODEV;
1914
115c9b81 1915 nskb = nlmsg_new(if_nlmsg_size(dev, ext_filter_mask), GFP_KERNEL);
a3d12891
ED		 1916 if (nskb == NULL)
1917 return -ENOBUFS;
b60c5115 1918
15e47304 1919 err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).portid,
115c9b81 1920 nlh->nlmsg_seq, 0, 0, ext_filter_mask);
26932566
PM		 1921 if (err < 0) {
1922 /* -EMSGSIZE implies BUG in if_nlmsg_size */
1923 WARN_ON(err == -EMSGSIZE);
1924 kfree_skb(nskb);
a3d12891 1925 } else
15e47304 1926 err = rtnl_unicast(nskb, net, NETLINK_CB(skb).portid);
711e2c33 1927
b60c5115 1928 return err;
711e2c33 1929}
711e2c33 1930
115c9b81 1931static u16 rtnl_calcit(struct sk_buff *skb, struct nlmsghdr *nlh)
c7ac8679 1932{
115c9b81
GR		 1933 struct net *net = sock_net(skb->sk);
1934 struct net_device *dev;
1935 struct nlattr *tb[IFLA_MAX+1];
1936 u32 ext_filter_mask = 0;
1937 u16 min_ifinfo_dump_size = 0;
fb0d10bf
MS		 1938 int hdrlen;
1939
1940 /* Same kernel<->userspace interface hack as in rtnl_dump_ifinfo. */
1941 hdrlen = nlmsg_len(nlh) < sizeof(struct ifinfomsg) ?
1942 sizeof(struct rtgenmsg) : sizeof(struct ifinfomsg);
115c9b81 1943
fb0d10bf 1944 if (nlmsg_parse(nlh, hdrlen, tb, IFLA_MAX, ifla_policy) >= 0) {
a4b64fbe
ED		 1945 if (tb[IFLA_EXT_MASK])
1946 ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
1947 }
115c9b81
GR		 1948
1949 if (!ext_filter_mask)
1950 return NLMSG_GOODSIZE;
1951 /*
1952 * traverse the list of net devices and compute the minimum
1953 * buffer size based upon the filter mask.
1954 */
1955 list_for_each_entry(dev, &net->dev_base_head, dev_list) {
1956 min_ifinfo_dump_size = max_t(u16, min_ifinfo_dump_size,
1957 if_nlmsg_size(dev,
1958 ext_filter_mask));
1959 }
1960
c7ac8679
GR		 1961 return min_ifinfo_dump_size;
1962}
1963
42bad1da 1964static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
1da177e4
LT		 1965{
1966 int idx;
1967 int s_idx = cb->family;
1968
1969 if (s_idx == 0)
1970 s_idx = 1;
25239cee 1971 for (idx = 1; idx <= RTNL_FAMILY_MAX; idx++) {
1da177e4
LT		 1972 int type = cb->nlh->nlmsg_type-RTM_BASE;
1973 if (idx < s_idx || idx == PF_PACKET)
1974 continue;
e2849863
TG		 1975 if (rtnl_msg_handlers[idx] == NULL ||
1976 rtnl_msg_handlers[idx][type].dumpit == NULL)
1da177e4 1977 continue;
0465277f 1978 if (idx > s_idx) {
1da177e4 1979 memset(&cb->args[0], 0, sizeof(cb->args));
0465277f
ND		 1980 cb->prev_seq = 0;
1981 cb->seq = 0;
1982 }
e2849863 1983 if (rtnl_msg_handlers[idx][type].dumpit(skb, cb))
1da177e4
LT		 1984 break;
1985 }
1986 cb->family = idx;
1987
1988 return skb->len;
1989}
1990
95c96174 1991void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change)
1da177e4 1992{
c346dca1 1993 struct net *net = dev_net(dev);
1da177e4 1994 struct sk_buff *skb;
0ec6d3f4 1995 int err = -ENOBUFS;
c7ac8679 1996 size_t if_info_size;
6fa3eb70
S		 1997 #ifdef CONFIG_MTK_NET_LOGGING
1998 printk(KERN_INFO "[mtk_net][rtnetlink]rtmsg_ifinfo type:%d, dev:%s, change:%u, pid = %d",
1999 type, dev->name, change, current->pid);
2000 #endif
115c9b81 2001 skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), GFP_KERNEL);
0ec6d3f4
TG		 2002 if (skb == NULL)
2003 goto errout;
1da177e4 2004
115c9b81 2005 err = rtnl_fill_ifinfo(skb, dev, type, 0, 0, change, 0, 0);
26932566
PM		 2006 if (err < 0) {
2007 /* -EMSGSIZE implies BUG in if_nlmsg_size() */
2008 WARN_ON(err == -EMSGSIZE);
2009 kfree_skb(skb);
2010 goto errout;
2011 }
1ce85fe4
PNA		 2012 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
2013 return;
0ec6d3f4
TG		 2014errout:
2015 if (err < 0)
4b3da706 2016 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
1da177e4 2017}
471cb5a3 2018EXPORT_SYMBOL(rtmsg_ifinfo);
1da177e4 2019
d83b0603
JF		 2020static int nlmsg_populate_fdb_fill(struct sk_buff *skb,
2021 struct net_device *dev,
2022 u8 *addr, u32 pid, u32 seq,
c0669e49
ND		 2023 int type, unsigned int flags,
2024 int nlflags)
d83b0603
JF		 2025{
2026 struct nlmsghdr *nlh;
2027 struct ndmsg *ndm;
2028
c0669e49 2029 nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndm), nlflags);
d83b0603
JF		 2030 if (!nlh)
2031 return -EMSGSIZE;
2032
2033 ndm = nlmsg_data(nlh);
2034 ndm->ndm_family = AF_BRIDGE;
2035 ndm->ndm_pad1 = 0;
2036 ndm->ndm_pad2 = 0;
2037 ndm->ndm_flags = flags;
2038 ndm->ndm_type = 0;
2039 ndm->ndm_ifindex = dev->ifindex;
2040 ndm->ndm_state = NUD_PERMANENT;
2041
2042 if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
2043 goto nla_put_failure;
2044
2045 return nlmsg_end(skb, nlh);
2046
2047nla_put_failure:
2048 nlmsg_cancel(skb, nlh);
2049 return -EMSGSIZE;
2050}
2051
3ff661c3
JF		 2052static inline size_t rtnl_fdb_nlmsg_size(void)
2053{
2054 return NLMSG_ALIGN(sizeof(struct ndmsg)) + nla_total_size(ETH_ALEN);
2055}
2056
2057static void rtnl_fdb_notify(struct net_device *dev, u8 *addr, int type)
2058{
2059 struct net *net = dev_net(dev);
2060 struct sk_buff *skb;
2061 int err = -ENOBUFS;
2062
2063 skb = nlmsg_new(rtnl_fdb_nlmsg_size(), GFP_ATOMIC);
2064 if (!skb)
2065 goto errout;
2066
c0669e49 2067 err = nlmsg_populate_fdb_fill(skb, dev, addr, 0, 0, type, NTF_SELF, 0);
3ff661c3
JF		 2068 if (err < 0) {
2069 kfree_skb(skb);
2070 goto errout;
2071 }
2072
2073 rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
2074 return;
2075errout:
2076 rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
2077}
2078
090096bf
VY		 2079/**
2080 * ndo_dflt_fdb_add - default netdevice operation to add an FDB entry
2081 */
2082int ndo_dflt_fdb_add(struct ndmsg *ndm,
2083 struct nlattr *tb[],
2084 struct net_device *dev,
2085 const unsigned char *addr,
2086 u16 flags)
2087{
2088 int err = -EINVAL;
2089
2090 /* If aging addresses are supported device will need to
2091 * implement its own handler for this.
2092 */
2093 if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) {
2094 pr_info("%s: FDB only supports static addresses\n", dev->name);
2095 return err;
2096 }
2097
2098 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
2099 err = dev_uc_add_excl(dev, addr);
2100 else if (is_multicast_ether_addr(addr))
2101 err = dev_mc_add_excl(dev, addr);
2102
2103 /* Only return duplicate errors if NLM_F_EXCL is set */
2104 if (err == -EEXIST && !(flags & NLM_F_EXCL))
2105 err = 0;
2106
2107 return err;
2108}
2109EXPORT_SYMBOL(ndo_dflt_fdb_add);
2110
661d2967 2111static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
77162022
JF		 2112{
2113 struct net *net = sock_net(skb->sk);
77162022
JF		 2114 struct ndmsg *ndm;
2115 struct nlattr *tb[NDA_MAX+1];
2116 struct net_device *dev;
2117 u8 *addr;
2118 int err;
2119
2120 err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
2121 if (err < 0)
2122 return err;
2123
2124 ndm = nlmsg_data(nlh);
2125 if (ndm->ndm_ifindex == 0) {
2126 pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex\n");
2127 return -EINVAL;
2128 }
2129
2130 dev = __dev_get_by_index(net, ndm->ndm_ifindex);
2131 if (dev == NULL) {
2132 pr_info("PF_BRIDGE: RTM_NEWNEIGH with unknown ifindex\n");
2133 return -ENODEV;
2134 }
2135
2136 if (!tb[NDA_LLADDR] || nla_len(tb[NDA_LLADDR]) != ETH_ALEN) {
2137 pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid address\n");
2138 return -EINVAL;
2139 }
2140
2141 addr = nla_data(tb[NDA_LLADDR]);
6681712d 2142 if (is_zero_ether_addr(addr)) {
77162022
JF		 2143 pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid ether address\n");
2144 return -EINVAL;
2145 }
2146
2147 err = -EOPNOTSUPP;
2148
2149 /* Support fdb on master device the net/bridge default case */
2150 if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
2151 (dev->priv_flags & IFF_BRIDGE_PORT)) {
898e5061
JP		 2152 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2153 const struct net_device_ops *ops = br_dev->netdev_ops;
2154
2155 err = ops->ndo_fdb_add(ndm, tb, dev, addr, nlh->nlmsg_flags);
77162022
JF		 2156 if (err)
2157 goto out;
2158 else
2159 ndm->ndm_flags &= ~NTF_MASTER;
2160 }
2161
2162 /* Embedded bridge, macvlan, and any other device support */
090096bf
VY		 2163 if ((ndm->ndm_flags & NTF_SELF)) {
2164 if (dev->netdev_ops->ndo_fdb_add)
2165 err = dev->netdev_ops->ndo_fdb_add(ndm, tb, dev, addr,
2166 nlh->nlmsg_flags);
2167 else
2168 err = ndo_dflt_fdb_add(ndm, tb, dev, addr,
2169 nlh->nlmsg_flags);
77162022 2170
3ff661c3
JF		 2171 if (!err) {
2172 rtnl_fdb_notify(dev, addr, RTM_NEWNEIGH);
77162022 2173 ndm->ndm_flags &= ~NTF_SELF;
3ff661c3 2174 }
77162022
JF		 2175 }
2176out:
2177 return err;
2178}
2179
090096bf
VY		 2180/**
2181 * ndo_dflt_fdb_del - default netdevice operation to delete an FDB entry
2182 */
2183int ndo_dflt_fdb_del(struct ndmsg *ndm,
2184 struct nlattr *tb[],
2185 struct net_device *dev,
2186 const unsigned char *addr)
2187{
2188 int err = -EOPNOTSUPP;
2189
2190 /* If aging addresses are supported device will need to
2191 * implement its own handler for this.
2192 */
21db4be1 2193 if (!(ndm->ndm_state & NUD_PERMANENT)) {
090096bf
VY		 2194 pr_info("%s: FDB only supports static addresses\n", dev->name);
2195 return -EINVAL;
2196 }
2197
2198 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
2199 err = dev_uc_del(dev, addr);
2200 else if (is_multicast_ether_addr(addr))
2201 err = dev_mc_del(dev, addr);
2202 else
2203 err = -EINVAL;
2204
2205 return err;
2206}
2207EXPORT_SYMBOL(ndo_dflt_fdb_del);
2208
661d2967 2209static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
77162022
JF		 2210{
2211 struct net *net = sock_net(skb->sk);
2212 struct ndmsg *ndm;
1690be63 2213 struct nlattr *tb[NDA_MAX+1];
77162022
JF		 2214 struct net_device *dev;
2215 int err = -EINVAL;
2216 __u8 *addr;
2217
1141a455 2218 if (!netlink_capable(skb, CAP_NET_ADMIN))
1690be63
VY		 2219 return -EPERM;
2220
2221 err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
2222 if (err < 0)
2223 return err;
77162022
JF		 2224
2225 ndm = nlmsg_data(nlh);
2226 if (ndm->ndm_ifindex == 0) {
2227 pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid ifindex\n");
2228 return -EINVAL;
2229 }
2230
2231 dev = __dev_get_by_index(net, ndm->ndm_ifindex);
2232 if (dev == NULL) {
2233 pr_info("PF_BRIDGE: RTM_DELNEIGH with unknown ifindex\n");
2234 return -ENODEV;
2235 }
2236
1690be63
VY		 2237 if (!tb[NDA_LLADDR] || nla_len(tb[NDA_LLADDR]) != ETH_ALEN) {
2238 pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid address\n");
2239 return -EINVAL;
2240 }
2241
2242 addr = nla_data(tb[NDA_LLADDR]);
37fe0660 2243 if (is_zero_ether_addr(addr)) {
1690be63 2244 pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid ether address\n");
77162022
JF		 2245 return -EINVAL;
2246 }
2247
77162022
JF		 2248 err = -EOPNOTSUPP;
2249
2250 /* Support fdb on master device the net/bridge default case */
2251 if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
2252 (dev->priv_flags & IFF_BRIDGE_PORT)) {
898e5061
JP		 2253 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2254 const struct net_device_ops *ops = br_dev->netdev_ops;
77162022 2255
898e5061 2256 if (ops->ndo_fdb_del)
1690be63 2257 err = ops->ndo_fdb_del(ndm, tb, dev, addr);
77162022
JF		 2258
2259 if (err)
2260 goto out;
2261 else
2262 ndm->ndm_flags &= ~NTF_MASTER;
2263 }
2264
2265 /* Embedded bridge, macvlan, and any other device support */
090096bf
VY		 2266 if (ndm->ndm_flags & NTF_SELF) {
2267 if (dev->netdev_ops->ndo_fdb_del)
2268 err = dev->netdev_ops->ndo_fdb_del(ndm, tb, dev, addr);
2269 else
2270 err = ndo_dflt_fdb_del(ndm, tb, dev, addr);
77162022 2271
3ff661c3
JF		 2272 if (!err) {
2273 rtnl_fdb_notify(dev, addr, RTM_DELNEIGH);
77162022 2274 ndm->ndm_flags &= ~NTF_SELF;
3ff661c3 2275 }
77162022
JF		 2276 }
2277out:
2278 return err;
2279}
2280
d83b0603
JF		 2281static int nlmsg_populate_fdb(struct sk_buff *skb,
2282 struct netlink_callback *cb,
2283 struct net_device *dev,
2284 int *idx,
2285 struct netdev_hw_addr_list *list)
2286{
2287 struct netdev_hw_addr *ha;
2288 int err;
15e47304 2289 u32 portid, seq;
d83b0603 2290
15e47304 2291 portid = NETLINK_CB(cb->skb).portid;
d83b0603
JF		 2292 seq = cb->nlh->nlmsg_seq;
2293
2294 list_for_each_entry(ha, &list->list, list) {
2295 if (*idx < cb->args[0])
2296 goto skip;
2297
2298 err = nlmsg_populate_fdb_fill(skb, dev, ha->addr,
a7a558fe 2299 portid, seq,
c0669e49
ND		 2300 RTM_NEWNEIGH, NTF_SELF,
2301 NLM_F_MULTI);
d83b0603
JF		 2302 if (err < 0)
2303 return err;
2304skip:
2305 *idx += 1;
2306 }
2307 return 0;
2308}
2309
2310/**
2c53040f 2311 * ndo_dflt_fdb_dump - default netdevice operation to dump an FDB table.
d83b0603
JF		 2312 * @nlh: netlink message header
2313 * @dev: netdevice
2314 *
2315 * Default netdevice operation to dump the existing unicast address list.
91f3e7b1 2316 * Returns number of addresses from list put in skb.
d83b0603
JF		 2317 */
2318int ndo_dflt_fdb_dump(struct sk_buff *skb,
2319 struct netlink_callback *cb,
2320 struct net_device *dev,
2321 int idx)
2322{
2323 int err;
2324
2325 netif_addr_lock_bh(dev);
2326 err = nlmsg_populate_fdb(skb, cb, dev, &idx, &dev->uc);
2327 if (err)
2328 goto out;
2329 nlmsg_populate_fdb(skb, cb, dev, &idx, &dev->mc);
2330out:
2331 netif_addr_unlock_bh(dev);
2332 return idx;
2333}
2334EXPORT_SYMBOL(ndo_dflt_fdb_dump);
2335
77162022
JF		 2336static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
2337{
2338 int idx = 0;
2339 struct net *net = sock_net(skb->sk);
2340 struct net_device *dev;
2341
2342 rcu_read_lock();
2343 for_each_netdev_rcu(net, dev) {
2344 if (dev->priv_flags & IFF_BRIDGE_PORT) {
898e5061
JP		 2345 struct net_device *br_dev;
2346 const struct net_device_ops *ops;
77162022 2347
898e5061
JP		 2348 br_dev = netdev_master_upper_dev_get(dev);
2349 ops = br_dev->netdev_ops;
77162022
JF		 2350 if (ops->ndo_fdb_dump)
2351 idx = ops->ndo_fdb_dump(skb, cb, dev, idx);
2352 }
2353
2354 if (dev->netdev_ops->ndo_fdb_dump)
2355 idx = dev->netdev_ops->ndo_fdb_dump(skb, cb, dev, idx);
090096bf 2356 else
91f3e7b1 2357 idx = ndo_dflt_fdb_dump(skb, cb, dev, idx);
77162022
JF		 2358 }
2359 rcu_read_unlock();
2360
2361 cb->args[0] = idx;
2362 return skb->len;
2363}
2364
815cccbf
JF		 2365int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
2366 struct net_device *dev, u16 mode)
2367{
2368 struct nlmsghdr *nlh;
2369 struct ifinfomsg *ifm;
2370 struct nlattr *br_afspec;
2371 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
898e5061 2372 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
815cccbf
JF		 2373
2374 nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*ifm), NLM_F_MULTI);
2375 if (nlh == NULL)
2376 return -EMSGSIZE;
2377
2378 ifm = nlmsg_data(nlh);
2379 ifm->ifi_family = AF_BRIDGE;
2380 ifm->__ifi_pad = 0;
2381 ifm->ifi_type = dev->type;
2382 ifm->ifi_index = dev->ifindex;
2383 ifm->ifi_flags = dev_get_flags(dev);
2384 ifm->ifi_change = 0;
2385
2386
2387 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
2388 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
2389 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
898e5061
JP		 2390 (br_dev &&
2391 nla_put_u32(skb, IFLA_MASTER, br_dev->ifindex)) ||
815cccbf
JF		 2392 (dev->addr_len &&
2393 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
2394 (dev->ifindex != dev->iflink &&
2395 nla_put_u32(skb, IFLA_LINK, dev->iflink)))
2396 goto nla_put_failure;
2397
2398 br_afspec = nla_nest_start(skb, IFLA_AF_SPEC);
2399 if (!br_afspec)
2400 goto nla_put_failure;
2401
2402 if (nla_put_u16(skb, IFLA_BRIDGE_FLAGS, BRIDGE_FLAGS_SELF) ||
2403 nla_put_u16(skb, IFLA_BRIDGE_MODE, mode)) {
2404 nla_nest_cancel(skb, br_afspec);
2405 goto nla_put_failure;
2406 }
2407 nla_nest_end(skb, br_afspec);
2408
2409 return nlmsg_end(skb, nlh);
2410nla_put_failure:
2411 nlmsg_cancel(skb, nlh);
2412 return -EMSGSIZE;
2413}
2414EXPORT_SYMBOL(ndo_dflt_bridge_getlink);
2415
e5a55a89
JF		 2416static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
2417{
2418 struct net *net = sock_net(skb->sk);
2419 struct net_device *dev;
2420 int idx = 0;
2421 u32 portid = NETLINK_CB(cb->skb).portid;
2422 u32 seq = cb->nlh->nlmsg_seq;
6cbdceeb
VY		 2423 struct nlattr *extfilt;
2424 u32 filter_mask = 0;
2425
f784dbb9 2426 extfilt = nlmsg_find_attr(cb->nlh, sizeof(struct ifinfomsg),
6cbdceeb
VY		 2427 IFLA_EXT_MASK);
2428 if (extfilt)
2429 filter_mask = nla_get_u32(extfilt);
e5a55a89
JF		 2430
2431 rcu_read_lock();
2432 for_each_netdev_rcu(net, dev) {
2433 const struct net_device_ops *ops = dev->netdev_ops;
898e5061 2434 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
e5a55a89 2435
898e5061 2436 if (br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
25b1e679 2437 if (idx >= cb->args[0] &&
898e5061 2438 br_dev->netdev_ops->ndo_bridge_getlink(
6cbdceeb 2439 skb, portid, seq, dev, filter_mask) < 0)
e5a55a89 2440 break;
25b1e679 2441 idx++;
e5a55a89
JF		 2442 }
2443
2444 if (ops->ndo_bridge_getlink) {
25b1e679 2445 if (idx >= cb->args[0] &&
6cbdceeb
VY		 2446 ops->ndo_bridge_getlink(skb, portid, seq, dev,
2447 filter_mask) < 0)
e5a55a89 2448 break;
25b1e679 2449 idx++;
e5a55a89
JF		 2450 }
2451 }
2452 rcu_read_unlock();
2453 cb->args[0] = idx;
2454
2455 return skb->len;
2456}
2457
2469ffd7
JF		 2458static inline size_t bridge_nlmsg_size(void)
2459{
2460 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
2461 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
2462 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
2463 + nla_total_size(sizeof(u32)) /* IFLA_MASTER */
2464 + nla_total_size(sizeof(u32)) /* IFLA_MTU */
2465 + nla_total_size(sizeof(u32)) /* IFLA_LINK */
2466 + nla_total_size(sizeof(u32)) /* IFLA_OPERSTATE */
2467 + nla_total_size(sizeof(u8)) /* IFLA_PROTINFO */
2468 + nla_total_size(sizeof(struct nlattr)) /* IFLA_AF_SPEC */
2469 + nla_total_size(sizeof(u16)) /* IFLA_BRIDGE_FLAGS */
2470 + nla_total_size(sizeof(u16)); /* IFLA_BRIDGE_MODE */
2471}
2472
2473static int rtnl_bridge_notify(struct net_device *dev, u16 flags)
2474{
2475 struct net *net = dev_net(dev);
898e5061 2476 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2469ffd7
JF		 2477 struct sk_buff *skb;
2478 int err = -EOPNOTSUPP;
2479
2480 skb = nlmsg_new(bridge_nlmsg_size(), GFP_ATOMIC);
2481 if (!skb) {
2482 err = -ENOMEM;
2483 goto errout;
2484 }
2485
c38e01b8 2486 if ((!flags || (flags & BRIDGE_FLAGS_MASTER)) &&
898e5061 2487 br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
6cbdceeb 2488 err = br_dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0);
c38e01b8
JF		 2489 if (err < 0)
2490 goto errout;
2491 }
2469ffd7 2492
c38e01b8
JF		 2493 if ((flags & BRIDGE_FLAGS_SELF) &&
2494 dev->netdev_ops->ndo_bridge_getlink) {
6cbdceeb 2495 err = dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0);
c38e01b8
JF		 2496 if (err < 0)
2497 goto errout;
2498 }
2469ffd7 2499
b4faf21b
RP		 2500 if (!skb->len)
2501 goto errout;
2502
2469ffd7
JF		 2503 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
2504 return 0;
2505errout:
2506 WARN_ON(err == -EMSGSIZE);
2507 kfree_skb(skb);
b4faf21b
RP		 2508 if (err)
2509 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
2469ffd7
JF		 2510 return err;
2511}
2512
661d2967 2513static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
e5a55a89
JF		 2514{
2515 struct net *net = sock_net(skb->sk);
2516 struct ifinfomsg *ifm;
2517 struct net_device *dev;
2469ffd7
JF		 2518 struct nlattr *br_spec, *attr = NULL;
2519 int rem, err = -EOPNOTSUPP;
c38e01b8
JF		 2520 u16 oflags, flags = 0;
2521 bool have_flags = false;
e5a55a89
JF		 2522
2523 if (nlmsg_len(nlh) < sizeof(*ifm))
2524 return -EINVAL;
2525
2526 ifm = nlmsg_data(nlh);
2527 if (ifm->ifi_family != AF_BRIDGE)
2528 return -EPFNOSUPPORT;
2529
2530 dev = __dev_get_by_index(net, ifm->ifi_index);
2531 if (!dev) {
2532 pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
2533 return -ENODEV;
2534 }
2535
2469ffd7
JF		 2536 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
2537 if (br_spec) {
2538 nla_for_each_nested(attr, br_spec, rem) {
2539 if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
c38e01b8 2540 have_flags = true;
2469ffd7
JF		 2541 flags = nla_get_u16(attr);
2542 break;
2543 }
2544 }
2545 }
2546
c38e01b8
JF		 2547 oflags = flags;
2548
2469ffd7 2549 if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
898e5061
JP		 2550 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2551
2552 if (!br_dev || !br_dev->netdev_ops->ndo_bridge_setlink) {
2469ffd7
JF		 2553 err = -EOPNOTSUPP;
2554 goto out;
2555 }
2556
898e5061 2557 err = br_dev->netdev_ops->ndo_bridge_setlink(dev, nlh);
e5a55a89
JF		 2558 if (err)
2559 goto out;
2469ffd7
JF		 2560
2561 flags &= ~BRIDGE_FLAGS_MASTER;
e5a55a89
JF		 2562 }
2563
2469ffd7
JF		 2564 if ((flags & BRIDGE_FLAGS_SELF)) {
2565 if (!dev->netdev_ops->ndo_bridge_setlink)
2566 err = -EOPNOTSUPP;
2567 else
2568 err = dev->netdev_ops->ndo_bridge_setlink(dev, nlh);
2569
2570 if (!err)
2571 flags &= ~BRIDGE_FLAGS_SELF;
2572 }
e5a55a89 2573
c38e01b8 2574 if (have_flags)
2469ffd7
JF		 2575 memcpy(nla_data(attr), &flags, sizeof(flags));
2576 /* Generate event to notify upper layer of bridge change */
2577 if (!err)
c38e01b8 2578 err = rtnl_bridge_notify(dev, oflags);
e5a55a89
JF		 2579out:
2580 return err;
2581}
2582
661d2967 2583static int rtnl_bridge_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)
407af329
VY		 2584{
2585 struct net *net = sock_net(skb->sk);
2586 struct ifinfomsg *ifm;
2587 struct net_device *dev;
2588 struct nlattr *br_spec, *attr = NULL;
2589 int rem, err = -EOPNOTSUPP;
2590 u16 oflags, flags = 0;
2591 bool have_flags = false;
2592
2593 if (nlmsg_len(nlh) < sizeof(*ifm))
2594 return -EINVAL;
2595
2596 ifm = nlmsg_data(nlh);
2597 if (ifm->ifi_family != AF_BRIDGE)
2598 return -EPFNOSUPPORT;
2599
2600 dev = __dev_get_by_index(net, ifm->ifi_index);
2601 if (!dev) {
2602 pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
2603 return -ENODEV;
2604 }
2605
2606 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
2607 if (br_spec) {
2608 nla_for_each_nested(attr, br_spec, rem) {
2609 if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
2610 have_flags = true;
2611 flags = nla_get_u16(attr);
2612 break;
2613 }
2614 }
2615 }
2616
2617 oflags = flags;
2618
2619 if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
2620 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2621
2622 if (!br_dev || !br_dev->netdev_ops->ndo_bridge_dellink) {
2623 err = -EOPNOTSUPP;
2624 goto out;
2625 }
2626
2627 err = br_dev->netdev_ops->ndo_bridge_dellink(dev, nlh);
2628 if (err)
2629 goto out;
2630
2631 flags &= ~BRIDGE_FLAGS_MASTER;
2632 }
2633
2634 if ((flags & BRIDGE_FLAGS_SELF)) {
2635 if (!dev->netdev_ops->ndo_bridge_dellink)
2636 err = -EOPNOTSUPP;
2637 else
2638 err = dev->netdev_ops->ndo_bridge_dellink(dev, nlh);
2639
2640 if (!err)
2641 flags &= ~BRIDGE_FLAGS_SELF;
2642 }
2643
2644 if (have_flags)
2645 memcpy(nla_data(attr), &flags, sizeof(flags));
2646 /* Generate event to notify upper layer of bridge change */
2647 if (!err)
2648 err = rtnl_bridge_notify(dev, oflags);
2649out:
2650 return err;
2651}
2652
1da177e4
LT		 2653/* Process one rtnetlink message. */
2654
1d00a4eb 2655static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
1da177e4 2656{
3b1e0a65 2657 struct net *net = sock_net(skb->sk);
e2849863 2658 rtnl_doit_func doit;
1da177e4 2659 int sz_idx, kind;
1da177e4
LT		 2660 int family;
2661 int type;
2907c35f 2662 int err;
1da177e4 2663
1da177e4 2664 type = nlh->nlmsg_type;
1da177e4 2665 if (type > RTM_MAX)
038890fe 2666 return -EOPNOTSUPP;
1da177e4
LT		 2667
2668 type -= RTM_BASE;
2669
2670 /* All the messages must have at least 1 byte length */
573ce260 2671 if (nlmsg_len(nlh) < sizeof(struct rtgenmsg))
1da177e4
LT		 2672 return 0;
2673
573ce260 2674 family = ((struct rtgenmsg *)nlmsg_data(nlh))->rtgen_family;
1da177e4
LT		 2675 sz_idx = type>>2;
2676 kind = type&3;
2677
1141a455 2678 if (kind != 2 && !netlink_net_capable(skb, CAP_NET_ADMIN))
1d00a4eb 2679 return -EPERM;
1da177e4 2680
b8f3ab42 2681 if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
97c53cac 2682 struct sock *rtnl;
e2849863 2683 rtnl_dumpit_func dumpit;
c7ac8679
GR		 2684 rtnl_calcit_func calcit;
2685 u16 min_dump_alloc = 0;
1da177e4 2686
e2849863
TG		 2687 dumpit = rtnl_get_dumpit(family, type);
2688 if (dumpit == NULL)
038890fe 2689 return -EOPNOTSUPP;
c7ac8679
GR		 2690 calcit = rtnl_get_calcit(family, type);
2691 if (calcit)
115c9b81 2692 min_dump_alloc = calcit(skb, nlh);
9ac4a169 2693
2907c35f 2694 __rtnl_unlock();
97c53cac 2695 rtnl = net->rtnl;
80d326fa
PNA		 2696 {
2697 struct netlink_dump_control c = {
2698 .dump = dumpit,
2699 .min_dump_alloc = min_dump_alloc,
2700 };
2701 err = netlink_dump_start(rtnl, skb, nlh, &c);
2702 }
2907c35f
ED		 2703 rtnl_lock();
2704 return err;
1da177e4
LT		 2705 }
2706
e2849863
TG		 2707 doit = rtnl_get_doit(family, type);
2708 if (doit == NULL)
038890fe 2709 return -EOPNOTSUPP;
1da177e4 2710
661d2967 2711 return doit(skb, nlh);
1da177e4
LT		 2712}
2713
cd40b7d3 2714static void rtnetlink_rcv(struct sk_buff *skb)
1da177e4 2715{
cd40b7d3
DL		 2716 rtnl_lock();
2717 netlink_rcv_skb(skb, &rtnetlink_rcv_msg);
2718 rtnl_unlock();
1da177e4
LT		 2719}
2720
1da177e4
LT		 2721static int rtnetlink_event(struct notifier_block *this, unsigned long event, void *ptr)
2722{
2723 struct net_device *dev = ptr;
e9dc8653 2724
1da177e4 2725 switch (event) {
1da177e4
LT		 2726 case NETDEV_UP:
2727 case NETDEV_DOWN:
10de05af 2728 case NETDEV_PRE_UP:
d90a909e
EB		 2729 case NETDEV_POST_INIT:
2730 case NETDEV_REGISTER:
1da177e4 2731 case NETDEV_CHANGE:
755d0e77 2732 case NETDEV_PRE_TYPE_CHANGE:
1da177e4 2733 case NETDEV_GOING_DOWN:
a2835763 2734 case NETDEV_UNREGISTER:
0115e8e3 2735 case NETDEV_UNREGISTER_FINAL:
ac3d3f81
AW		 2736 case NETDEV_RELEASE:
2737 case NETDEV_JOIN:
1da177e4
LT		 2738 break;
2739 default:
2740 rtmsg_ifinfo(RTM_NEWLINK, dev, 0);
2741 break;
2742 }
2743 return NOTIFY_DONE;
2744}
2745
2746static struct notifier_block rtnetlink_dev_notifier = {
2747 .notifier_call = rtnetlink_event,
2748};
2749
97c53cac 2750
2c8c1e72 2751static int __net_init rtnetlink_net_init(struct net *net)
97c53cac
DL		 2752{
2753 struct sock *sk;
a31f2d17
PNA		 2754 struct netlink_kernel_cfg cfg = {
2755 .groups = RTNLGRP_MAX,
2756 .input = rtnetlink_rcv,
2757 .cb_mutex = &rtnl_mutex,
9785e10a 2758 .flags = NL_CFG_F_NONROOT_RECV,
a31f2d17
PNA		 2759 };
2760
9f00d977 2761 sk = netlink_kernel_create(net, NETLINK_ROUTE, &cfg);
97c53cac
DL		 2762 if (!sk)
2763 return -ENOMEM;
97c53cac
DL		 2764 net->rtnl = sk;
2765 return 0;
2766}
2767
2c8c1e72 2768static void __net_exit rtnetlink_net_exit(struct net *net)
97c53cac 2769{
775516bf
DL		 2770 netlink_kernel_release(net->rtnl);
2771 net->rtnl = NULL;
97c53cac
DL		 2772}
2773
2774static struct pernet_operations rtnetlink_net_ops = {
2775 .init = rtnetlink_net_init,
2776 .exit = rtnetlink_net_exit,
2777};
2778
1da177e4
LT		 2779void __init rtnetlink_init(void)
2780{
97c53cac 2781 if (register_pernet_subsys(&rtnetlink_net_ops))
1da177e4 2782 panic("rtnetlink_init: cannot initialize rtnetlink\n");
97c53cac 2783
1da177e4 2784 register_netdevice_notifier(&rtnetlink_dev_notifier);
340d17fc 2785
c7ac8679
GR		 2786 rtnl_register(PF_UNSPEC, RTM_GETLINK, rtnl_getlink,
2787 rtnl_dump_ifinfo, rtnl_calcit);
2788 rtnl_register(PF_UNSPEC, RTM_SETLINK, rtnl_setlink, NULL, NULL);
2789 rtnl_register(PF_UNSPEC, RTM_NEWLINK, rtnl_newlink, NULL, NULL);
2790 rtnl_register(PF_UNSPEC, RTM_DELLINK, rtnl_dellink, NULL, NULL);
687ad8cc 2791
c7ac8679
GR		 2792 rtnl_register(PF_UNSPEC, RTM_GETADDR, NULL, rtnl_dump_all, NULL);
2793 rtnl_register(PF_UNSPEC, RTM_GETROUTE, NULL, rtnl_dump_all, NULL);
77162022
JF		 2794
2795 rtnl_register(PF_BRIDGE, RTM_NEWNEIGH, rtnl_fdb_add, NULL, NULL);
2796 rtnl_register(PF_BRIDGE, RTM_DELNEIGH, rtnl_fdb_del, NULL, NULL);
2797 rtnl_register(PF_BRIDGE, RTM_GETNEIGH, NULL, rtnl_fdb_dump, NULL);
e5a55a89
JF		 2798
2799 rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL, rtnl_bridge_getlink, NULL);
407af329 2800 rtnl_register(PF_BRIDGE, RTM_DELLINK, rtnl_bridge_dellink, NULL, NULL);
e5a55a89 2801 rtnl_register(PF_BRIDGE, RTM_SETLINK, rtnl_bridge_setlink, NULL, NULL);
1da177e4
LT		 2802}
2803
kernel source for telekom puls (alcatel/mediatek)