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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[net-next-2.6.git] / net / core / ethtool.c
CommitLineData
1da177e4
LT		 1/*
2 * net/core/ethtool.c - Ethtool ioctl handler
3 * Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
4 *
5 * This file is where we call all the ethtool_ops commands to get
61a44b9c 6 * the information ethtool needs.
1da177e4 7 *
61a44b9c
MW		 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
1da177e4
LT		 12 */
13
14#include <linux/module.h>
15#include <linux/types.h>
4fc268d2 16#include <linux/capability.h>
1da177e4
LT		 17#include <linux/errno.h>
18#include <linux/ethtool.h>
19#include <linux/netdevice.h>
d17792eb 20#include <linux/bitops.h>
5a0e3ad6 21#include <linux/slab.h>
1da177e4
LT		 22#include <asm/uaccess.h>
23
4ec93edb 24/*
1da177e4
LT		 25 * Some useful ethtool_ops methods that're device independent.
26 * If we find that all drivers want to do the same thing here,
27 * we can turn these into dev_() function calls.
28 */
29
30u32 ethtool_op_get_link(struct net_device *dev)
31{
32 return netif_carrier_ok(dev) ? 1 : 0;
33}
34
1896e61f
SS		 35u32 ethtool_op_get_rx_csum(struct net_device *dev)
36{
37 return (dev->features & NETIF_F_ALL_CSUM) != 0;
38}
8a729fce 39EXPORT_SYMBOL(ethtool_op_get_rx_csum);
1896e61f 40
1da177e4
LT		 41u32 ethtool_op_get_tx_csum(struct net_device *dev)
42{
8648b305 43 return (dev->features & NETIF_F_ALL_CSUM) != 0;
1da177e4 44}
8a729fce 45EXPORT_SYMBOL(ethtool_op_get_tx_csum);
1da177e4
LT		 46
47int ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
48{
49 if (data)
50 dev->features |= NETIF_F_IP_CSUM;
51 else
52 dev->features &= ~NETIF_F_IP_CSUM;
53
54 return 0;
55}
56
69f6a0fa
JM		 57int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data)
58{
59 if (data)
60 dev->features |= NETIF_F_HW_CSUM;
61 else
62 dev->features &= ~NETIF_F_HW_CSUM;
63
64 return 0;
65}
6460d948
MC		 66
67int ethtool_op_set_tx_ipv6_csum(struct net_device *dev, u32 data)
68{
69 if (data)
70 dev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
71 else
72 dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
73
74 return 0;
75}
76
1da177e4
LT		 77u32 ethtool_op_get_sg(struct net_device *dev)
78{
79 return (dev->features & NETIF_F_SG) != 0;
80}
81
82int ethtool_op_set_sg(struct net_device *dev, u32 data)
83{
84 if (data)
85 dev->features |= NETIF_F_SG;
86 else
87 dev->features &= ~NETIF_F_SG;
88
89 return 0;
90}
91
92u32 ethtool_op_get_tso(struct net_device *dev)
93{
94 return (dev->features & NETIF_F_TSO) != 0;
95}
96
97int ethtool_op_set_tso(struct net_device *dev, u32 data)
98{
99 if (data)
100 dev->features |= NETIF_F_TSO;
101 else
102 dev->features &= ~NETIF_F_TSO;
103
104 return 0;
105}
106
e89e9cf5
AR		 107u32 ethtool_op_get_ufo(struct net_device *dev)
108{
109 return (dev->features & NETIF_F_UFO) != 0;
110}
111
112int ethtool_op_set_ufo(struct net_device *dev, u32 data)
113{
114 if (data)
115 dev->features |= NETIF_F_UFO;
116 else
117 dev->features &= ~NETIF_F_UFO;
118 return 0;
119}
120
3ae7c0b2
JG		 121/* the following list of flags are the same as their associated
122 * NETIF_F_xxx values in include/linux/netdevice.h
123 */
124static const u32 flags_dup_features =
15682bc4 125 (ETH_FLAG_LRO | ETH_FLAG_NTUPLE);
3ae7c0b2
JG		 126
127u32 ethtool_op_get_flags(struct net_device *dev)
128{
129 /* in the future, this function will probably contain additional
130 * handling for flags which are not so easily handled
131 * by a simple masking operation
132 */
133
134 return dev->features & flags_dup_features;
135}
136
137int ethtool_op_set_flags(struct net_device *dev, u32 data)
138{
0d643e1f 139 const struct ethtool_ops *ops = dev->ethtool_ops;
9675478b 140 unsigned long features = dev->features;
0d643e1f 141
3ae7c0b2 142 if (data & ETH_FLAG_LRO)
9675478b 143 features |= NETIF_F_LRO;
3ae7c0b2 144 else
9675478b 145 features &= ~NETIF_F_LRO;
3ae7c0b2 146
0d643e1f
PW		 147 if (data & ETH_FLAG_NTUPLE) {
148 if (!ops->set_rx_ntuple)
149 return -EOPNOTSUPP;
9675478b 150 features |= NETIF_F_NTUPLE;
0d643e1f
PW		 151 } else {
152 /* safe to clear regardless */
9675478b 153 features &= ~NETIF_F_NTUPLE;
0d643e1f 154 }
15682bc4 155
9675478b 156 dev->features = features;
3ae7c0b2
JG		 157 return 0;
158}
159
15682bc4
PWJ		 160void ethtool_ntuple_flush(struct net_device *dev)
161{
162 struct ethtool_rx_ntuple_flow_spec_container *fsc, *f;
163
164 list_for_each_entry_safe(fsc, f, &dev->ethtool_ntuple_list.list, list) {
165 list_del(&fsc->list);
166 kfree(fsc);
167 }
168 dev->ethtool_ntuple_list.count = 0;
169}
170EXPORT_SYMBOL(ethtool_ntuple_flush);
171
1da177e4
LT		 172/* Handlers for each ethtool command */
173
174static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
175{
8e557421 176 struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
1da177e4
LT		 177 int err;
178
179 if (!dev->ethtool_ops->get_settings)
180 return -EOPNOTSUPP;
181
182 err = dev->ethtool_ops->get_settings(dev, &cmd);
183 if (err < 0)
184 return err;
185
186 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
187 return -EFAULT;
188 return 0;
189}
190
191static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
192{
193 struct ethtool_cmd cmd;
194
195 if (!dev->ethtool_ops->set_settings)
196 return -EOPNOTSUPP;
197
198 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
199 return -EFAULT;
200
201 return dev->ethtool_ops->set_settings(dev, &cmd);
202}
203
f5c445ed 204static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev, void __user *useraddr)
1da177e4
LT		 205{
206 struct ethtool_drvinfo info;
76fd8593 207 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4
LT		 208
209 if (!ops->get_drvinfo)
210 return -EOPNOTSUPP;
211
212 memset(&info, 0, sizeof(info));
213 info.cmd = ETHTOOL_GDRVINFO;
214 ops->get_drvinfo(dev, &info);
215
723b2f57
JG		 216 /*
217 * this method of obtaining string set info is deprecated;
d17792eb 218 * Use ETHTOOL_GSSET_INFO instead.
723b2f57 219 */
ff03d49f
JG		 220 if (ops->get_sset_count) {
221 int rc;
222
223 rc = ops->get_sset_count(dev, ETH_SS_TEST);
224 if (rc >= 0)
225 info.testinfo_len = rc;
226 rc = ops->get_sset_count(dev, ETH_SS_STATS);
227 if (rc >= 0)
228 info.n_stats = rc;
339bf024
JG		 229 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
230 if (rc >= 0)
231 info.n_priv_flags = rc;
ff03d49f 232 }
1da177e4
LT		 233 if (ops->get_regs_len)
234 info.regdump_len = ops->get_regs_len(dev);
235 if (ops->get_eeprom_len)
236 info.eedump_len = ops->get_eeprom_len(dev);
237
238 if (copy_to_user(useraddr, &info, sizeof(info)))
239 return -EFAULT;
240 return 0;
241}
242
f5c445ed 243static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
723b2f57
JG		 244 void __user *useraddr)
245{
246 struct ethtool_sset_info info;
247 const struct ethtool_ops *ops = dev->ethtool_ops;
248 u64 sset_mask;
249 int i, idx = 0, n_bits = 0, ret, rc;
250 u32 *info_buf = NULL;
251
252 if (!ops->get_sset_count)
253 return -EOPNOTSUPP;
254
255 if (copy_from_user(&info, useraddr, sizeof(info)))
256 return -EFAULT;
257
258 /* store copy of mask, because we zero struct later on */
259 sset_mask = info.sset_mask;
260 if (!sset_mask)
261 return 0;
262
263 /* calculate size of return buffer */
d17792eb 264 n_bits = hweight64(sset_mask);
723b2f57
JG		 265
266 memset(&info, 0, sizeof(info));
267 info.cmd = ETHTOOL_GSSET_INFO;
268
269 info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
270 if (!info_buf)
271 return -ENOMEM;
272
273 /*
274 * fill return buffer based on input bitmask and successful
275 * get_sset_count return
276 */
277 for (i = 0; i < 64; i++) {
278 if (!(sset_mask & (1ULL << i)))
279 continue;
280
281 rc = ops->get_sset_count(dev, i);
282 if (rc >= 0) {
283 info.sset_mask |= (1ULL << i);
284 info_buf[idx++] = rc;
285 }
286 }
287
288 ret = -EFAULT;
289 if (copy_to_user(useraddr, &info, sizeof(info)))
290 goto out;
291
292 useraddr += offsetof(struct ethtool_sset_info, data);
293 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
294 goto out;
295
296 ret = 0;
297
298out:
299 kfree(info_buf);
300 return ret;
301}
302
f5c445ed 303static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev, void __user *useraddr)
0853ad66
SB		 304{
305 struct ethtool_rxnfc cmd;
306
59089d8d 307 if (!dev->ethtool_ops->set_rxnfc)
0853ad66
SB		 308 return -EOPNOTSUPP;
309
310 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
311 return -EFAULT;
312
59089d8d 313 return dev->ethtool_ops->set_rxnfc(dev, &cmd);
0853ad66
SB		 314}
315
f5c445ed 316static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev, void __user *useraddr)
0853ad66
SB		 317{
318 struct ethtool_rxnfc info;
59089d8d
SB		 319 const struct ethtool_ops *ops = dev->ethtool_ops;
320 int ret;
321 void *rule_buf = NULL;
0853ad66 322
59089d8d 323 if (!ops->get_rxnfc)
0853ad66
SB		 324 return -EOPNOTSUPP;
325
326 if (copy_from_user(&info, useraddr, sizeof(info)))
327 return -EFAULT;
328
59089d8d
SB		 329 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
330 if (info.rule_cnt > 0) {
331 rule_buf = kmalloc(info.rule_cnt * sizeof(u32),
332 GFP_USER);
333 if (!rule_buf)
334 return -ENOMEM;
335 }
336 }
0853ad66 337
59089d8d
SB		 338 ret = ops->get_rxnfc(dev, &info, rule_buf);
339 if (ret < 0)
340 goto err_out;
341
342 ret = -EFAULT;
0853ad66 343 if (copy_to_user(useraddr, &info, sizeof(info)))
59089d8d
SB		 344 goto err_out;
345
346 if (rule_buf) {
347 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
348 if (copy_to_user(useraddr, rule_buf,
349 info.rule_cnt * sizeof(u32)))
350 goto err_out;
351 }
352 ret = 0;
353
354err_out:
c9caceca 355 kfree(rule_buf);
59089d8d
SB		 356
357 return ret;
0853ad66
SB		 358}
359
e8589118
PW		 360static void __rx_ntuple_filter_add(struct ethtool_rx_ntuple_list *list,
361 struct ethtool_rx_ntuple_flow_spec *spec,
362 struct ethtool_rx_ntuple_flow_spec_container *fsc)
15682bc4 363{
15682bc4
PWJ		 364
365 /* don't add filters forever */
e8589118
PW		 366 if (list->count >= ETHTOOL_MAX_NTUPLE_LIST_ENTRY) {
367 /* free the container */
368 kfree(fsc);
369 return;
370 }
15682bc4
PWJ		 371
372 /* Copy the whole filter over */
373 fsc->fs.flow_type = spec->flow_type;
374 memcpy(&fsc->fs.h_u, &spec->h_u, sizeof(spec->h_u));
375 memcpy(&fsc->fs.m_u, &spec->m_u, sizeof(spec->m_u));
376
377 fsc->fs.vlan_tag = spec->vlan_tag;
378 fsc->fs.vlan_tag_mask = spec->vlan_tag_mask;
379 fsc->fs.data = spec->data;
380 fsc->fs.data_mask = spec->data_mask;
381 fsc->fs.action = spec->action;
382
383 /* add to the list */
384 list_add_tail_rcu(&fsc->list, &list->list);
385 list->count++;
15682bc4
PWJ		 386}
387
f5c445ed 388static noinline_for_stack int ethtool_set_rx_ntuple(struct net_device *dev, void __user *useraddr)
15682bc4
PWJ		 389{
390 struct ethtool_rx_ntuple cmd;
391 const struct ethtool_ops *ops = dev->ethtool_ops;
e8589118 392 struct ethtool_rx_ntuple_flow_spec_container *fsc = NULL;
15682bc4
PWJ		 393 int ret;
394
15682bc4
PWJ		 395 if (!(dev->features & NETIF_F_NTUPLE))
396 return -EINVAL;
397
398 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
399 return -EFAULT;
400
15682bc4
PWJ		 401 /*
402 * Cache filter in dev struct for GET operation only if
403 * the underlying driver doesn't have its own GET operation, and
e8589118
PW		 404 * only if the filter was added successfully. First make sure we
405 * can allocate the filter, then continue if successful.
15682bc4 406 */
e8589118
PW		 407 if (!ops->get_rx_ntuple) {
408 fsc = kmalloc(sizeof(*fsc), GFP_ATOMIC);
409 if (!fsc)
15682bc4 410 return -ENOMEM;
e8589118
PW		 411 }
412
413 ret = ops->set_rx_ntuple(dev, &cmd);
414 if (ret) {
415 kfree(fsc);
416 return ret;
417 }
418
419 if (!ops->get_rx_ntuple)
420 __rx_ntuple_filter_add(&dev->ethtool_ntuple_list, &cmd.fs, fsc);
15682bc4
PWJ		 421
422 return ret;
423}
424
425static int ethtool_get_rx_ntuple(struct net_device *dev, void __user *useraddr)
426{
427 struct ethtool_gstrings gstrings;
428 const struct ethtool_ops *ops = dev->ethtool_ops;
429 struct ethtool_rx_ntuple_flow_spec_container *fsc;
430 u8 *data;
431 char *p;
432 int ret, i, num_strings = 0;
433
434 if (!ops->get_sset_count)
435 return -EOPNOTSUPP;
436
437 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
438 return -EFAULT;
439
440 ret = ops->get_sset_count(dev, gstrings.string_set);
441 if (ret < 0)
442 return ret;
443
444 gstrings.len = ret;
445
446 data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
447 if (!data)
448 return -ENOMEM;
449
450 if (ops->get_rx_ntuple) {
451 /* driver-specific filter grab */
452 ret = ops->get_rx_ntuple(dev, gstrings.string_set, data);
453 goto copy;
454 }
455
456 /* default ethtool filter grab */
457 i = 0;
458 p = (char *)data;
459 list_for_each_entry(fsc, &dev->ethtool_ntuple_list.list, list) {
460 sprintf(p, "Filter %d:\n", i);
461 p += ETH_GSTRING_LEN;
462 num_strings++;
463
464 switch (fsc->fs.flow_type) {
465 case TCP_V4_FLOW:
466 sprintf(p, "\tFlow Type: TCP\n");
467 p += ETH_GSTRING_LEN;
468 num_strings++;
469 break;
470 case UDP_V4_FLOW:
471 sprintf(p, "\tFlow Type: UDP\n");
472 p += ETH_GSTRING_LEN;
473 num_strings++;
474 break;
475 case SCTP_V4_FLOW:
476 sprintf(p, "\tFlow Type: SCTP\n");
477 p += ETH_GSTRING_LEN;
478 num_strings++;
479 break;
480 case AH_ESP_V4_FLOW:
481 sprintf(p, "\tFlow Type: AH ESP\n");
482 p += ETH_GSTRING_LEN;
483 num_strings++;
484 break;
485 case ESP_V4_FLOW:
486 sprintf(p, "\tFlow Type: ESP\n");
487 p += ETH_GSTRING_LEN;
488 num_strings++;
489 break;
490 case IP_USER_FLOW:
491 sprintf(p, "\tFlow Type: Raw IP\n");
492 p += ETH_GSTRING_LEN;
493 num_strings++;
494 break;
495 case IPV4_FLOW:
496 sprintf(p, "\tFlow Type: IPv4\n");
497 p += ETH_GSTRING_LEN;
498 num_strings++;
499 break;
500 default:
501 sprintf(p, "\tFlow Type: Unknown\n");
502 p += ETH_GSTRING_LEN;
503 num_strings++;
504 goto unknown_filter;
505 };
506
507 /* now the rest of the filters */
508 switch (fsc->fs.flow_type) {
509 case TCP_V4_FLOW:
510 case UDP_V4_FLOW:
511 case SCTP_V4_FLOW:
512 sprintf(p, "\tSrc IP addr: 0x%x\n",
513 fsc->fs.h_u.tcp_ip4_spec.ip4src);
514 p += ETH_GSTRING_LEN;
515 num_strings++;
516 sprintf(p, "\tSrc IP mask: 0x%x\n",
517 fsc->fs.m_u.tcp_ip4_spec.ip4src);
518 p += ETH_GSTRING_LEN;
519 num_strings++;
520 sprintf(p, "\tDest IP addr: 0x%x\n",
521 fsc->fs.h_u.tcp_ip4_spec.ip4dst);
522 p += ETH_GSTRING_LEN;
523 num_strings++;
524 sprintf(p, "\tDest IP mask: 0x%x\n",
525 fsc->fs.m_u.tcp_ip4_spec.ip4dst);
526 p += ETH_GSTRING_LEN;
527 num_strings++;
528 sprintf(p, "\tSrc Port: %d, mask: 0x%x\n",
529 fsc->fs.h_u.tcp_ip4_spec.psrc,
530 fsc->fs.m_u.tcp_ip4_spec.psrc);
531 p += ETH_GSTRING_LEN;
532 num_strings++;
533 sprintf(p, "\tDest Port: %d, mask: 0x%x\n",
534 fsc->fs.h_u.tcp_ip4_spec.pdst,
535 fsc->fs.m_u.tcp_ip4_spec.pdst);
536 p += ETH_GSTRING_LEN;
537 num_strings++;
538 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
539 fsc->fs.h_u.tcp_ip4_spec.tos,
540 fsc->fs.m_u.tcp_ip4_spec.tos);
541 p += ETH_GSTRING_LEN;
542 num_strings++;
543 break;
544 case AH_ESP_V4_FLOW:
545 case ESP_V4_FLOW:
546 sprintf(p, "\tSrc IP addr: 0x%x\n",
547 fsc->fs.h_u.ah_ip4_spec.ip4src);
548 p += ETH_GSTRING_LEN;
549 num_strings++;
550 sprintf(p, "\tSrc IP mask: 0x%x\n",
551 fsc->fs.m_u.ah_ip4_spec.ip4src);
552 p += ETH_GSTRING_LEN;
553 num_strings++;
554 sprintf(p, "\tDest IP addr: 0x%x\n",
555 fsc->fs.h_u.ah_ip4_spec.ip4dst);
556 p += ETH_GSTRING_LEN;
557 num_strings++;
558 sprintf(p, "\tDest IP mask: 0x%x\n",
559 fsc->fs.m_u.ah_ip4_spec.ip4dst);
560 p += ETH_GSTRING_LEN;
561 num_strings++;
562 sprintf(p, "\tSPI: %d, mask: 0x%x\n",
563 fsc->fs.h_u.ah_ip4_spec.spi,
564 fsc->fs.m_u.ah_ip4_spec.spi);
565 p += ETH_GSTRING_LEN;
566 num_strings++;
567 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
568 fsc->fs.h_u.ah_ip4_spec.tos,
569 fsc->fs.m_u.ah_ip4_spec.tos);
570 p += ETH_GSTRING_LEN;
571 num_strings++;
572 break;
573 case IP_USER_FLOW:
574 sprintf(p, "\tSrc IP addr: 0x%x\n",
575 fsc->fs.h_u.raw_ip4_spec.ip4src);
576 p += ETH_GSTRING_LEN;
577 num_strings++;
578 sprintf(p, "\tSrc IP mask: 0x%x\n",
579 fsc->fs.m_u.raw_ip4_spec.ip4src);
580 p += ETH_GSTRING_LEN;
581 num_strings++;
582 sprintf(p, "\tDest IP addr: 0x%x\n",
583 fsc->fs.h_u.raw_ip4_spec.ip4dst);
584 p += ETH_GSTRING_LEN;
585 num_strings++;
586 sprintf(p, "\tDest IP mask: 0x%x\n",
587 fsc->fs.m_u.raw_ip4_spec.ip4dst);
588 p += ETH_GSTRING_LEN;
589 num_strings++;
590 break;
591 case IPV4_FLOW:
592 sprintf(p, "\tSrc IP addr: 0x%x\n",
593 fsc->fs.h_u.usr_ip4_spec.ip4src);
594 p += ETH_GSTRING_LEN;
595 num_strings++;
596 sprintf(p, "\tSrc IP mask: 0x%x\n",
597 fsc->fs.m_u.usr_ip4_spec.ip4src);
598 p += ETH_GSTRING_LEN;
599 num_strings++;
600 sprintf(p, "\tDest IP addr: 0x%x\n",
601 fsc->fs.h_u.usr_ip4_spec.ip4dst);
602 p += ETH_GSTRING_LEN;
603 num_strings++;
604 sprintf(p, "\tDest IP mask: 0x%x\n",
605 fsc->fs.m_u.usr_ip4_spec.ip4dst);
606 p += ETH_GSTRING_LEN;
607 num_strings++;
608 sprintf(p, "\tL4 bytes: 0x%x, mask: 0x%x\n",
609 fsc->fs.h_u.usr_ip4_spec.l4_4_bytes,
610 fsc->fs.m_u.usr_ip4_spec.l4_4_bytes);
611 p += ETH_GSTRING_LEN;
612 num_strings++;
613 sprintf(p, "\tTOS: %d, mask: 0x%x\n",
614 fsc->fs.h_u.usr_ip4_spec.tos,
615 fsc->fs.m_u.usr_ip4_spec.tos);
616 p += ETH_GSTRING_LEN;
617 num_strings++;
618 sprintf(p, "\tIP Version: %d, mask: 0x%x\n",
619 fsc->fs.h_u.usr_ip4_spec.ip_ver,
620 fsc->fs.m_u.usr_ip4_spec.ip_ver);
621 p += ETH_GSTRING_LEN;
622 num_strings++;
623 sprintf(p, "\tProtocol: %d, mask: 0x%x\n",
624 fsc->fs.h_u.usr_ip4_spec.proto,
625 fsc->fs.m_u.usr_ip4_spec.proto);
626 p += ETH_GSTRING_LEN;
627 num_strings++;
628 break;
629 };
630 sprintf(p, "\tVLAN: %d, mask: 0x%x\n",
631 fsc->fs.vlan_tag, fsc->fs.vlan_tag_mask);
632 p += ETH_GSTRING_LEN;
633 num_strings++;
634 sprintf(p, "\tUser-defined: 0x%Lx\n", fsc->fs.data);
635 p += ETH_GSTRING_LEN;
636 num_strings++;
637 sprintf(p, "\tUser-defined mask: 0x%Lx\n", fsc->fs.data_mask);
638 p += ETH_GSTRING_LEN;
639 num_strings++;
640 if (fsc->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
641 sprintf(p, "\tAction: Drop\n");
642 else
643 sprintf(p, "\tAction: Direct to queue %d\n",
644 fsc->fs.action);
645 p += ETH_GSTRING_LEN;
646 num_strings++;
647unknown_filter:
648 i++;
649 }
650copy:
651 /* indicate to userspace how many strings we actually have */
652 gstrings.len = num_strings;
653 ret = -EFAULT;
654 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
655 goto out;
656 useraddr += sizeof(gstrings);
657 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
658 goto out;
659 ret = 0;
660
661out:
662 kfree(data);
663 return ret;
664}
665
1da177e4
LT		 666static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
667{
668 struct ethtool_regs regs;
76fd8593 669 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4
LT		 670 void *regbuf;
671 int reglen, ret;
672
673 if (!ops->get_regs || !ops->get_regs_len)
674 return -EOPNOTSUPP;
675
676 if (copy_from_user(&regs, useraddr, sizeof(regs)))
677 return -EFAULT;
678
679 reglen = ops->get_regs_len(dev);
680 if (regs.len > reglen)
681 regs.len = reglen;
682
683 regbuf = kmalloc(reglen, GFP_USER);
684 if (!regbuf)
685 return -ENOMEM;
686
687 ops->get_regs(dev, &regs, regbuf);
688
689 ret = -EFAULT;
690 if (copy_to_user(useraddr, &regs, sizeof(regs)))
691 goto out;
692 useraddr += offsetof(struct ethtool_regs, data);
693 if (copy_to_user(useraddr, regbuf, regs.len))
694 goto out;
695 ret = 0;
696
697 out:
698 kfree(regbuf);
699 return ret;
700}
701
d73d3a8c
BH		 702static int ethtool_reset(struct net_device *dev, char __user *useraddr)
703{
704 struct ethtool_value reset;
705 int ret;
706
707 if (!dev->ethtool_ops->reset)
708 return -EOPNOTSUPP;
709
710 if (copy_from_user(&reset, useraddr, sizeof(reset)))
711 return -EFAULT;
712
713 ret = dev->ethtool_ops->reset(dev, &reset.data);
714 if (ret)
715 return ret;
716
717 if (copy_to_user(useraddr, &reset, sizeof(reset)))
718 return -EFAULT;
719 return 0;
720}
721
1da177e4
LT		 722static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
723{
8e557421 724 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1da177e4
LT		 725
726 if (!dev->ethtool_ops->get_wol)
727 return -EOPNOTSUPP;
728
729 dev->ethtool_ops->get_wol(dev, &wol);
730
731 if (copy_to_user(useraddr, &wol, sizeof(wol)))
732 return -EFAULT;
733 return 0;
734}
735
736static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
737{
738 struct ethtool_wolinfo wol;
739
740 if (!dev->ethtool_ops->set_wol)
741 return -EOPNOTSUPP;
742
743 if (copy_from_user(&wol, useraddr, sizeof(wol)))
744 return -EFAULT;
745
746 return dev->ethtool_ops->set_wol(dev, &wol);
747}
748
1da177e4
LT		 749static int ethtool_nway_reset(struct net_device *dev)
750{
751 if (!dev->ethtool_ops->nway_reset)
752 return -EOPNOTSUPP;
753
754 return dev->ethtool_ops->nway_reset(dev);
755}
756
1da177e4
LT		 757static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
758{
759 struct ethtool_eeprom eeprom;
76fd8593 760 const struct ethtool_ops *ops = dev->ethtool_ops;
b131dd5d
MSB		 761 void __user *userbuf = useraddr + sizeof(eeprom);
762 u32 bytes_remaining;
1da177e4 763 u8 *data;
b131dd5d 764 int ret = 0;
1da177e4
LT		 765
766 if (!ops->get_eeprom || !ops->get_eeprom_len)
767 return -EOPNOTSUPP;
768
769 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
770 return -EFAULT;
771
772 /* Check for wrap and zero */
773 if (eeprom.offset + eeprom.len <= eeprom.offset)
774 return -EINVAL;
775
776 /* Check for exceeding total eeprom len */
777 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
778 return -EINVAL;
779
b131dd5d 780 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 781 if (!data)
782 return -ENOMEM;
783
b131dd5d
MSB		 784 bytes_remaining = eeprom.len;
785 while (bytes_remaining > 0) {
786 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
787
788 ret = ops->get_eeprom(dev, &eeprom, data);
789 if (ret)
790 break;
791 if (copy_to_user(userbuf, data, eeprom.len)) {
792 ret = -EFAULT;
793 break;
794 }
795 userbuf += eeprom.len;
796 eeprom.offset += eeprom.len;
797 bytes_remaining -= eeprom.len;
798 }
1da177e4 799
c5835df9
MSB		 800 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
801 eeprom.offset -= eeprom.len;
802 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
803 ret = -EFAULT;
804
1da177e4
LT		 805 kfree(data);
806 return ret;
807}
808
809static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
810{
811 struct ethtool_eeprom eeprom;
76fd8593 812 const struct ethtool_ops *ops = dev->ethtool_ops;
b131dd5d
MSB		 813 void __user *userbuf = useraddr + sizeof(eeprom);
814 u32 bytes_remaining;
1da177e4 815 u8 *data;
b131dd5d 816 int ret = 0;
1da177e4
LT		 817
818 if (!ops->set_eeprom || !ops->get_eeprom_len)
819 return -EOPNOTSUPP;
820
821 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
822 return -EFAULT;
823
824 /* Check for wrap and zero */
825 if (eeprom.offset + eeprom.len <= eeprom.offset)
826 return -EINVAL;
827
828 /* Check for exceeding total eeprom len */
829 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
830 return -EINVAL;
831
b131dd5d 832 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 833 if (!data)
834 return -ENOMEM;
835
b131dd5d
MSB		 836 bytes_remaining = eeprom.len;
837 while (bytes_remaining > 0) {
838 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
839
840 if (copy_from_user(data, userbuf, eeprom.len)) {
841 ret = -EFAULT;
842 break;
843 }
844 ret = ops->set_eeprom(dev, &eeprom, data);
845 if (ret)
846 break;
847 userbuf += eeprom.len;
848 eeprom.offset += eeprom.len;
849 bytes_remaining -= eeprom.len;
850 }
1da177e4 851
1da177e4
LT		 852 kfree(data);
853 return ret;
854}
855
f5c445ed 856static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev, void __user *useraddr)
1da177e4 857{
8e557421 858 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1da177e4
LT		 859
860 if (!dev->ethtool_ops->get_coalesce)
861 return -EOPNOTSUPP;
862
863 dev->ethtool_ops->get_coalesce(dev, &coalesce);
864
865 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
866 return -EFAULT;
867 return 0;
868}
869
f5c445ed 870static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev, void __user *useraddr)
1da177e4
LT		 871{
872 struct ethtool_coalesce coalesce;
873
fa04ae5c 874 if (!dev->ethtool_ops->set_coalesce)
1da177e4
LT		 875 return -EOPNOTSUPP;
876
877 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
878 return -EFAULT;
879
880 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
881}
882
883static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
884{
8e557421 885 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1da177e4
LT		 886
887 if (!dev->ethtool_ops->get_ringparam)
888 return -EOPNOTSUPP;
889
890 dev->ethtool_ops->get_ringparam(dev, &ringparam);
891
892 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
893 return -EFAULT;
894 return 0;
895}
896
897static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
898{
899 struct ethtool_ringparam ringparam;
900
901 if (!dev->ethtool_ops->set_ringparam)
902 return -EOPNOTSUPP;
903
904 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
905 return -EFAULT;
906
907 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
908}
909
910static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
911{
912 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
913
914 if (!dev->ethtool_ops->get_pauseparam)
915 return -EOPNOTSUPP;
916
917 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
918
919 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
920 return -EFAULT;
921 return 0;
922}
923
924static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
925{
926 struct ethtool_pauseparam pauseparam;
927
e1b90c41 928 if (!dev->ethtool_ops->set_pauseparam)
1da177e4
LT		 929 return -EOPNOTSUPP;
930
931 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
932 return -EFAULT;
933
934 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
935}
936
1da177e4
LT		 937static int __ethtool_set_sg(struct net_device *dev, u32 data)
938{
939 int err;
940
941 if (!data && dev->ethtool_ops->set_tso) {
942 err = dev->ethtool_ops->set_tso(dev, 0);
943 if (err)
944 return err;
945 }
946
e89e9cf5
AR		 947 if (!data && dev->ethtool_ops->set_ufo) {
948 err = dev->ethtool_ops->set_ufo(dev, 0);
949 if (err)
950 return err;
951 }
1da177e4
LT		 952 return dev->ethtool_ops->set_sg(dev, data);
953}
954
955static int ethtool_set_tx_csum(struct net_device *dev, char __user *useraddr)
956{
957 struct ethtool_value edata;
958 int err;
959
960 if (!dev->ethtool_ops->set_tx_csum)
961 return -EOPNOTSUPP;
962
963 if (copy_from_user(&edata, useraddr, sizeof(edata)))
964 return -EFAULT;
965
966 if (!edata.data && dev->ethtool_ops->set_sg) {
967 err = __ethtool_set_sg(dev, 0);
968 if (err)
969 return err;
970 }
971
972 return dev->ethtool_ops->set_tx_csum(dev, edata.data);
973}
974
b240a0e5
HX		 975static int ethtool_set_rx_csum(struct net_device *dev, char __user *useraddr)
976{
977 struct ethtool_value edata;
978
979 if (!dev->ethtool_ops->set_rx_csum)
980 return -EOPNOTSUPP;
981
982 if (copy_from_user(&edata, useraddr, sizeof(edata)))
983 return -EFAULT;
984
985 if (!edata.data && dev->ethtool_ops->set_sg)
986 dev->features &= ~NETIF_F_GRO;
987
988 return dev->ethtool_ops->set_rx_csum(dev, edata.data);
989}
990
1da177e4
LT		 991static int ethtool_set_sg(struct net_device *dev, char __user *useraddr)
992{
993 struct ethtool_value edata;
994
995 if (!dev->ethtool_ops->set_sg)
996 return -EOPNOTSUPP;
997
998 if (copy_from_user(&edata, useraddr, sizeof(edata)))
999 return -EFAULT;
1000
4ec93edb 1001 if (edata.data &&
8648b305 1002 !(dev->features & NETIF_F_ALL_CSUM))
1da177e4
LT		 1003 return -EINVAL;
1004
1005 return __ethtool_set_sg(dev, edata.data);
1006}
1007
1da177e4
LT		 1008static int ethtool_set_tso(struct net_device *dev, char __user *useraddr)
1009{
1010 struct ethtool_value edata;
1011
1012 if (!dev->ethtool_ops->set_tso)
1013 return -EOPNOTSUPP;
1014
1015 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1016 return -EFAULT;
1017
1018 if (edata.data && !(dev->features & NETIF_F_SG))
1019 return -EINVAL;
1020
1021 return dev->ethtool_ops->set_tso(dev, edata.data);
1022}
1023
e89e9cf5
AR		 1024static int ethtool_set_ufo(struct net_device *dev, char __user *useraddr)
1025{
1026 struct ethtool_value edata;
1027
1028 if (!dev->ethtool_ops->set_ufo)
1029 return -EOPNOTSUPP;
1030 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1031 return -EFAULT;
1032 if (edata.data && !(dev->features & NETIF_F_SG))
1033 return -EINVAL;
1034 if (edata.data && !(dev->features & NETIF_F_HW_CSUM))
1035 return -EINVAL;
1036 return dev->ethtool_ops->set_ufo(dev, edata.data);
1037}
1038
37c3185a
HX		 1039static int ethtool_get_gso(struct net_device *dev, char __user *useraddr)
1040{
1041 struct ethtool_value edata = { ETHTOOL_GGSO };
1042
1043 edata.data = dev->features & NETIF_F_GSO;
1044 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1045 return -EFAULT;
1046 return 0;
1047}
1048
1049static int ethtool_set_gso(struct net_device *dev, char __user *useraddr)
1050{
1051 struct ethtool_value edata;
1052
1053 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1054 return -EFAULT;
1055 if (edata.data)
1056 dev->features |= NETIF_F_GSO;
1057 else
1058 dev->features &= ~NETIF_F_GSO;
1059 return 0;
1060}
1061
b240a0e5
HX		 1062static int ethtool_get_gro(struct net_device *dev, char __user *useraddr)
1063{
1064 struct ethtool_value edata = { ETHTOOL_GGRO };
1065
1066 edata.data = dev->features & NETIF_F_GRO;
1067 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1068 return -EFAULT;
1069 return 0;
1070}
1071
1072static int ethtool_set_gro(struct net_device *dev, char __user *useraddr)
1073{
1074 struct ethtool_value edata;
1075
1076 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1077 return -EFAULT;
1078
1079 if (edata.data) {
1080 if (!dev->ethtool_ops->get_rx_csum ||
1081 !dev->ethtool_ops->get_rx_csum(dev))
1082 return -EINVAL;
1083 dev->features |= NETIF_F_GRO;
1084 } else
1085 dev->features &= ~NETIF_F_GRO;
1086
1087 return 0;
1088}
1089
1da177e4
LT		 1090static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1091{
1092 struct ethtool_test test;
76fd8593 1093 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1094 u64 *data;
ff03d49f 1095 int ret, test_len;
1da177e4 1096
a9828ec6 1097 if (!ops->self_test || !ops->get_sset_count)
1da177e4
LT		 1098 return -EOPNOTSUPP;
1099
a9828ec6 1100 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
ff03d49f
JG		 1101 if (test_len < 0)
1102 return test_len;
1103 WARN_ON(test_len == 0);
1104
1da177e4
LT		 1105 if (copy_from_user(&test, useraddr, sizeof(test)))
1106 return -EFAULT;
1107
ff03d49f
JG		 1108 test.len = test_len;
1109 data = kmalloc(test_len * sizeof(u64), GFP_USER);
1da177e4
LT		 1110 if (!data)
1111 return -ENOMEM;
1112
1113 ops->self_test(dev, &test, data);
1114
1115 ret = -EFAULT;
1116 if (copy_to_user(useraddr, &test, sizeof(test)))
1117 goto out;
1118 useraddr += sizeof(test);
1119 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1120 goto out;
1121 ret = 0;
1122
1123 out:
1124 kfree(data);
1125 return ret;
1126}
1127
1128static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1129{
1130 struct ethtool_gstrings gstrings;
76fd8593 1131 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4
LT		 1132 u8 *data;
1133 int ret;
1134
a9828ec6 1135 if (!ops->get_strings || !ops->get_sset_count)
1da177e4
LT		 1136 return -EOPNOTSUPP;
1137
1138 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1139 return -EFAULT;
1140
a9828ec6
BH		 1141 ret = ops->get_sset_count(dev, gstrings.string_set);
1142 if (ret < 0)
1143 return ret;
1144
1145 gstrings.len = ret;
1da177e4
LT		 1146
1147 data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
1148 if (!data)
1149 return -ENOMEM;
1150
1151 ops->get_strings(dev, gstrings.string_set, data);
1152
1153 ret = -EFAULT;
1154 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1155 goto out;
1156 useraddr += sizeof(gstrings);
1157 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1158 goto out;
1159 ret = 0;
1160
1161 out:
1162 kfree(data);
1163 return ret;
1164}
1165
1166static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1167{
1168 struct ethtool_value id;
1169
1170 if (!dev->ethtool_ops->phys_id)
1171 return -EOPNOTSUPP;
1172
1173 if (copy_from_user(&id, useraddr, sizeof(id)))
1174 return -EFAULT;
1175
1176 return dev->ethtool_ops->phys_id(dev, id.data);
1177}
1178
1179static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1180{
1181 struct ethtool_stats stats;
76fd8593 1182 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1183 u64 *data;
ff03d49f 1184 int ret, n_stats;
1da177e4 1185
a9828ec6 1186 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1da177e4
LT		 1187 return -EOPNOTSUPP;
1188
a9828ec6 1189 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
ff03d49f
JG		 1190 if (n_stats < 0)
1191 return n_stats;
1192 WARN_ON(n_stats == 0);
1193
1da177e4
LT		 1194 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1195 return -EFAULT;
1196
ff03d49f
JG		 1197 stats.n_stats = n_stats;
1198 data = kmalloc(n_stats * sizeof(u64), GFP_USER);
1da177e4
LT		 1199 if (!data)
1200 return -ENOMEM;
1201
1202 ops->get_ethtool_stats(dev, &stats, data);
1203
1204 ret = -EFAULT;
1205 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1206 goto out;
1207 useraddr += sizeof(stats);
1208 if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
1209 goto out;
1210 ret = 0;
1211
1212 out:
1213 kfree(data);
1214 return ret;
1215}
1216
0bf0519d 1217static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
a6f9a705
JW		 1218{
1219 struct ethtool_perm_addr epaddr;
a6f9a705 1220
313674af 1221 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
a6f9a705
JW		 1222 return -EFAULT;
1223
313674af
MW		 1224 if (epaddr.size < dev->addr_len)
1225 return -ETOOSMALL;
1226 epaddr.size = dev->addr_len;
a6f9a705 1227
a6f9a705 1228 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
313674af 1229 return -EFAULT;
a6f9a705 1230 useraddr += sizeof(epaddr);
313674af
MW		 1231 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
1232 return -EFAULT;
1233 return 0;
a6f9a705
JW		 1234}
1235
13c99b24
JG		 1236static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
1237 u32 cmd, u32 (*actor)(struct net_device *))
3ae7c0b2 1238{
8e557421 1239 struct ethtool_value edata = { .cmd = cmd };
3ae7c0b2 1240
13c99b24 1241 if (!actor)
3ae7c0b2
JG		 1242 return -EOPNOTSUPP;
1243
13c99b24 1244 edata.data = actor(dev);
3ae7c0b2
JG		 1245
1246 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1247 return -EFAULT;
1248 return 0;
1249}
1250
13c99b24
JG		 1251static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
1252 void (*actor)(struct net_device *, u32))
3ae7c0b2
JG		 1253{
1254 struct ethtool_value edata;
1255
13c99b24 1256 if (!actor)
3ae7c0b2
JG		 1257 return -EOPNOTSUPP;
1258
1259 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1260 return -EFAULT;
1261
13c99b24 1262 actor(dev, edata.data);
339bf024
JG		 1263 return 0;
1264}
1265
13c99b24
JG		 1266static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
1267 int (*actor)(struct net_device *, u32))
339bf024
JG		 1268{
1269 struct ethtool_value edata;
1270
13c99b24 1271 if (!actor)
339bf024
JG		 1272 return -EOPNOTSUPP;
1273
1274 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1275 return -EFAULT;
1276
13c99b24 1277 return actor(dev, edata.data);
339bf024
JG		 1278}
1279
f5c445ed 1280static noinline_for_stack int ethtool_flash_device(struct net_device *dev, char __user *useraddr)
05c6a8d7
AK		 1281{
1282 struct ethtool_flash efl;
1283
1284 if (copy_from_user(&efl, useraddr, sizeof(efl)))
1285 return -EFAULT;
1286
1287 if (!dev->ethtool_ops->flash_device)
1288 return -EOPNOTSUPP;
1289
1290 return dev->ethtool_ops->flash_device(dev, &efl);
1291}
1292
1da177e4
LT		 1293/* The main entry point in this file. Called from net/core/dev.c */
1294
881d966b 1295int dev_ethtool(struct net *net, struct ifreq *ifr)
1da177e4 1296{
881d966b 1297 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
1da177e4
LT		 1298 void __user *useraddr = ifr->ifr_data;
1299 u32 ethcmd;
1300 int rc;
81e81575 1301 unsigned long old_features;
1da177e4 1302
1da177e4
LT		 1303 if (!dev || !netif_device_present(dev))
1304 return -ENODEV;
1305
1306 if (!dev->ethtool_ops)
61a44b9c 1307 return -EOPNOTSUPP;
1da177e4
LT		 1308
1309 if (copy_from_user(&ethcmd, useraddr, sizeof (ethcmd)))
1310 return -EFAULT;
1311
75f3123c
SH		 1312 /* Allow some commands to be done by anyone */
1313 switch(ethcmd) {
75f3123c 1314 case ETHTOOL_GDRVINFO:
75f3123c 1315 case ETHTOOL_GMSGLVL:
75f3123c
SH		 1316 case ETHTOOL_GCOALESCE:
1317 case ETHTOOL_GRINGPARAM:
1318 case ETHTOOL_GPAUSEPARAM:
1319 case ETHTOOL_GRXCSUM:
1320 case ETHTOOL_GTXCSUM:
1321 case ETHTOOL_GSG:
1322 case ETHTOOL_GSTRINGS:
75f3123c
SH		 1323 case ETHTOOL_GTSO:
1324 case ETHTOOL_GPERMADDR:
1325 case ETHTOOL_GUFO:
1326 case ETHTOOL_GGSO:
1cab819b 1327 case ETHTOOL_GGRO:
339bf024
JG		 1328 case ETHTOOL_GFLAGS:
1329 case ETHTOOL_GPFLAGS:
0853ad66 1330 case ETHTOOL_GRXFH:
59089d8d
SB		 1331 case ETHTOOL_GRXRINGS:
1332 case ETHTOOL_GRXCLSRLCNT:
1333 case ETHTOOL_GRXCLSRULE:
1334 case ETHTOOL_GRXCLSRLALL:
75f3123c
SH		 1335 break;
1336 default:
1337 if (!capable(CAP_NET_ADMIN))
1338 return -EPERM;
1339 }
1340
e71a4783 1341 if (dev->ethtool_ops->begin)
1da177e4
LT		 1342 if ((rc = dev->ethtool_ops->begin(dev)) < 0)
1343 return rc;
1344
d8a33ac4
SH		 1345 old_features = dev->features;
1346
1da177e4
LT		 1347 switch (ethcmd) {
1348 case ETHTOOL_GSET:
1349 rc = ethtool_get_settings(dev, useraddr);
1350 break;
1351 case ETHTOOL_SSET:
1352 rc = ethtool_set_settings(dev, useraddr);
1353 break;
1354 case ETHTOOL_GDRVINFO:
1355 rc = ethtool_get_drvinfo(dev, useraddr);
1da177e4
LT		 1356 break;
1357 case ETHTOOL_GREGS:
1358 rc = ethtool_get_regs(dev, useraddr);
1359 break;
1360 case ETHTOOL_GWOL:
1361 rc = ethtool_get_wol(dev, useraddr);
1362 break;
1363 case ETHTOOL_SWOL:
1364 rc = ethtool_set_wol(dev, useraddr);
1365 break;
1366 case ETHTOOL_GMSGLVL:
13c99b24
JG		 1367 rc = ethtool_get_value(dev, useraddr, ethcmd,
1368 dev->ethtool_ops->get_msglevel);
1da177e4
LT		 1369 break;
1370 case ETHTOOL_SMSGLVL:
13c99b24
JG		 1371 rc = ethtool_set_value_void(dev, useraddr,
1372 dev->ethtool_ops->set_msglevel);
1da177e4
LT		 1373 break;
1374 case ETHTOOL_NWAY_RST:
1375 rc = ethtool_nway_reset(dev);
1376 break;
1377 case ETHTOOL_GLINK:
13c99b24
JG		 1378 rc = ethtool_get_value(dev, useraddr, ethcmd,
1379 dev->ethtool_ops->get_link);
1da177e4
LT		 1380 break;
1381 case ETHTOOL_GEEPROM:
1382 rc = ethtool_get_eeprom(dev, useraddr);
1383 break;
1384 case ETHTOOL_SEEPROM:
1385 rc = ethtool_set_eeprom(dev, useraddr);
1386 break;
1387 case ETHTOOL_GCOALESCE:
1388 rc = ethtool_get_coalesce(dev, useraddr);
1389 break;
1390 case ETHTOOL_SCOALESCE:
1391 rc = ethtool_set_coalesce(dev, useraddr);
1392 break;
1393 case ETHTOOL_GRINGPARAM:
1394 rc = ethtool_get_ringparam(dev, useraddr);
1395 break;
1396 case ETHTOOL_SRINGPARAM:
1397 rc = ethtool_set_ringparam(dev, useraddr);
1398 break;
1399 case ETHTOOL_GPAUSEPARAM:
1400 rc = ethtool_get_pauseparam(dev, useraddr);
1401 break;
1402 case ETHTOOL_SPAUSEPARAM:
1403 rc = ethtool_set_pauseparam(dev, useraddr);
1404 break;
1405 case ETHTOOL_GRXCSUM:
13c99b24 1406 rc = ethtool_get_value(dev, useraddr, ethcmd,
1896e61f
SS		 1407 (dev->ethtool_ops->get_rx_csum ?
1408 dev->ethtool_ops->get_rx_csum :
1409 ethtool_op_get_rx_csum));
1da177e4
LT		 1410 break;
1411 case ETHTOOL_SRXCSUM:
b240a0e5 1412 rc = ethtool_set_rx_csum(dev, useraddr);
1da177e4
LT		 1413 break;
1414 case ETHTOOL_GTXCSUM:
13c99b24 1415 rc = ethtool_get_value(dev, useraddr, ethcmd,
88d3aafd
JG		 1416 (dev->ethtool_ops->get_tx_csum ?
1417 dev->ethtool_ops->get_tx_csum :
1418 ethtool_op_get_tx_csum));
1da177e4
LT		 1419 break;
1420 case ETHTOOL_STXCSUM:
1421 rc = ethtool_set_tx_csum(dev, useraddr);
1422 break;
1423 case ETHTOOL_GSG:
13c99b24 1424 rc = ethtool_get_value(dev, useraddr, ethcmd,
88d3aafd
JG		 1425 (dev->ethtool_ops->get_sg ?
1426 dev->ethtool_ops->get_sg :
1427 ethtool_op_get_sg));
1da177e4
LT		 1428 break;
1429 case ETHTOOL_SSG:
1430 rc = ethtool_set_sg(dev, useraddr);
1431 break;
1432 case ETHTOOL_GTSO:
13c99b24 1433 rc = ethtool_get_value(dev, useraddr, ethcmd,
88d3aafd
JG		 1434 (dev->ethtool_ops->get_tso ?
1435 dev->ethtool_ops->get_tso :
1436 ethtool_op_get_tso));
1da177e4
LT		 1437 break;
1438 case ETHTOOL_STSO:
1439 rc = ethtool_set_tso(dev, useraddr);
1440 break;
1441 case ETHTOOL_TEST:
1442 rc = ethtool_self_test(dev, useraddr);
1443 break;
1444 case ETHTOOL_GSTRINGS:
1445 rc = ethtool_get_strings(dev, useraddr);
1446 break;
1447 case ETHTOOL_PHYS_ID:
1448 rc = ethtool_phys_id(dev, useraddr);
1449 break;
1450 case ETHTOOL_GSTATS:
1451 rc = ethtool_get_stats(dev, useraddr);
1452 break;
a6f9a705
JW		 1453 case ETHTOOL_GPERMADDR:
1454 rc = ethtool_get_perm_addr(dev, useraddr);
1455 break;
e89e9cf5 1456 case ETHTOOL_GUFO:
13c99b24 1457 rc = ethtool_get_value(dev, useraddr, ethcmd,
88d3aafd
JG		 1458 (dev->ethtool_ops->get_ufo ?
1459 dev->ethtool_ops->get_ufo :
1460 ethtool_op_get_ufo));
e89e9cf5
AR		 1461 break;
1462 case ETHTOOL_SUFO:
1463 rc = ethtool_set_ufo(dev, useraddr);
1464 break;
37c3185a
HX		 1465 case ETHTOOL_GGSO:
1466 rc = ethtool_get_gso(dev, useraddr);
1467 break;
1468 case ETHTOOL_SGSO:
1469 rc = ethtool_set_gso(dev, useraddr);
1470 break;
3ae7c0b2 1471 case ETHTOOL_GFLAGS:
13c99b24 1472 rc = ethtool_get_value(dev, useraddr, ethcmd,
1896e61f
SS		 1473 (dev->ethtool_ops->get_flags ?
1474 dev->ethtool_ops->get_flags :
1475 ethtool_op_get_flags));
3ae7c0b2
JG		 1476 break;
1477 case ETHTOOL_SFLAGS:
13c99b24
JG		 1478 rc = ethtool_set_value(dev, useraddr,
1479 dev->ethtool_ops->set_flags);
3ae7c0b2 1480 break;
339bf024 1481 case ETHTOOL_GPFLAGS:
13c99b24
JG		 1482 rc = ethtool_get_value(dev, useraddr, ethcmd,
1483 dev->ethtool_ops->get_priv_flags);
339bf024
JG		 1484 break;
1485 case ETHTOOL_SPFLAGS:
13c99b24
JG		 1486 rc = ethtool_set_value(dev, useraddr,
1487 dev->ethtool_ops->set_priv_flags);
339bf024 1488 break;
0853ad66 1489 case ETHTOOL_GRXFH:
59089d8d
SB		 1490 case ETHTOOL_GRXRINGS:
1491 case ETHTOOL_GRXCLSRLCNT:
1492 case ETHTOOL_GRXCLSRULE:
1493 case ETHTOOL_GRXCLSRLALL:
1494 rc = ethtool_get_rxnfc(dev, useraddr);
0853ad66
SB		 1495 break;
1496 case ETHTOOL_SRXFH:
59089d8d
SB		 1497 case ETHTOOL_SRXCLSRLDEL:
1498 case ETHTOOL_SRXCLSRLINS:
1499 rc = ethtool_set_rxnfc(dev, useraddr);
0853ad66 1500 break;
b240a0e5
HX		 1501 case ETHTOOL_GGRO:
1502 rc = ethtool_get_gro(dev, useraddr);
1503 break;
1504 case ETHTOOL_SGRO:
1505 rc = ethtool_set_gro(dev, useraddr);
1506 break;
05c6a8d7
AK		 1507 case ETHTOOL_FLASHDEV:
1508 rc = ethtool_flash_device(dev, useraddr);
1509 break;
d73d3a8c
BH		 1510 case ETHTOOL_RESET:
1511 rc = ethtool_reset(dev, useraddr);
1512 break;
15682bc4
PWJ		 1513 case ETHTOOL_SRXNTUPLE:
1514 rc = ethtool_set_rx_ntuple(dev, useraddr);
1515 break;
1516 case ETHTOOL_GRXNTUPLE:
1517 rc = ethtool_get_rx_ntuple(dev, useraddr);
1518 break;
723b2f57
JG		 1519 case ETHTOOL_GSSET_INFO:
1520 rc = ethtool_get_sset_info(dev, useraddr);
1521 break;
1da177e4 1522 default:
61a44b9c 1523 rc = -EOPNOTSUPP;
1da177e4 1524 }
4ec93edb 1525
e71a4783 1526 if (dev->ethtool_ops->complete)
1da177e4 1527 dev->ethtool_ops->complete(dev);
d8a33ac4
SH		 1528
1529 if (old_features != dev->features)
1530 netdev_features_change(dev);
1531
1da177e4 1532 return rc;
1da177e4
LT		 1533}
1534
1da177e4
LT		 1535EXPORT_SYMBOL(ethtool_op_get_link);
1536EXPORT_SYMBOL(ethtool_op_get_sg);
1537EXPORT_SYMBOL(ethtool_op_get_tso);
1da177e4
LT		 1538EXPORT_SYMBOL(ethtool_op_set_sg);
1539EXPORT_SYMBOL(ethtool_op_set_tso);
1540EXPORT_SYMBOL(ethtool_op_set_tx_csum);
69f6a0fa 1541EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum);
6460d948 1542EXPORT_SYMBOL(ethtool_op_set_tx_ipv6_csum);
e89e9cf5
AR		 1543EXPORT_SYMBOL(ethtool_op_set_ufo);
1544EXPORT_SYMBOL(ethtool_op_get_ufo);
3ae7c0b2
JG		 1545EXPORT_SYMBOL(ethtool_op_set_flags);
1546EXPORT_SYMBOL(ethtool_op_get_flags);
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