Commit | Line | Data |
---|---|---|
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 | |
6 | * the information ethtool needs. We fall back to calling do_ioctl() | |
7 | * for drivers which haven't been converted to ethtool_ops yet. | |
8 | * | |
9 | * It's GPL, stupid. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/types.h> | |
4fc268d2 | 14 | #include <linux/capability.h> |
1da177e4 LT |
15 | #include <linux/errno.h> |
16 | #include <linux/ethtool.h> | |
17 | #include <linux/netdevice.h> | |
18 | #include <asm/uaccess.h> | |
19 | ||
20 | /* | |
21 | * Some useful ethtool_ops methods that're device independent. | |
22 | * If we find that all drivers want to do the same thing here, | |
23 | * we can turn these into dev_() function calls. | |
24 | */ | |
25 | ||
26 | u32 ethtool_op_get_link(struct net_device *dev) | |
27 | { | |
28 | return netif_carrier_ok(dev) ? 1 : 0; | |
29 | } | |
30 | ||
31 | u32 ethtool_op_get_tx_csum(struct net_device *dev) | |
32 | { | |
69f6a0fa | 33 | return (dev->features & (NETIF_F_IP_CSUM | NETIF_F_HW_CSUM)) != 0; |
1da177e4 LT |
34 | } |
35 | ||
36 | int ethtool_op_set_tx_csum(struct net_device *dev, u32 data) | |
37 | { | |
38 | if (data) | |
39 | dev->features |= NETIF_F_IP_CSUM; | |
40 | else | |
41 | dev->features &= ~NETIF_F_IP_CSUM; | |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
69f6a0fa JM |
46 | int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data) |
47 | { | |
48 | if (data) | |
49 | dev->features |= NETIF_F_HW_CSUM; | |
50 | else | |
51 | dev->features &= ~NETIF_F_HW_CSUM; | |
52 | ||
53 | return 0; | |
54 | } | |
1da177e4 LT |
55 | u32 ethtool_op_get_sg(struct net_device *dev) |
56 | { | |
57 | return (dev->features & NETIF_F_SG) != 0; | |
58 | } | |
59 | ||
60 | int ethtool_op_set_sg(struct net_device *dev, u32 data) | |
61 | { | |
62 | if (data) | |
63 | dev->features |= NETIF_F_SG; | |
64 | else | |
65 | dev->features &= ~NETIF_F_SG; | |
66 | ||
67 | return 0; | |
68 | } | |
69 | ||
70 | u32 ethtool_op_get_tso(struct net_device *dev) | |
71 | { | |
72 | return (dev->features & NETIF_F_TSO) != 0; | |
73 | } | |
74 | ||
75 | int ethtool_op_set_tso(struct net_device *dev, u32 data) | |
76 | { | |
77 | if (data) | |
78 | dev->features |= NETIF_F_TSO; | |
79 | else | |
80 | dev->features &= ~NETIF_F_TSO; | |
81 | ||
82 | return 0; | |
83 | } | |
84 | ||
a6f9a705 JW |
85 | int ethtool_op_get_perm_addr(struct net_device *dev, struct ethtool_perm_addr *addr, u8 *data) |
86 | { | |
87 | unsigned char len = dev->addr_len; | |
88 | if ( addr->size < len ) | |
89 | return -ETOOSMALL; | |
90 | ||
91 | addr->size = len; | |
92 | memcpy(data, dev->perm_addr, len); | |
93 | return 0; | |
94 | } | |
95 | ||
96 | ||
e89e9cf5 AR |
97 | u32 ethtool_op_get_ufo(struct net_device *dev) |
98 | { | |
99 | return (dev->features & NETIF_F_UFO) != 0; | |
100 | } | |
101 | ||
102 | int ethtool_op_set_ufo(struct net_device *dev, u32 data) | |
103 | { | |
104 | if (data) | |
105 | dev->features |= NETIF_F_UFO; | |
106 | else | |
107 | dev->features &= ~NETIF_F_UFO; | |
108 | return 0; | |
109 | } | |
110 | ||
1da177e4 LT |
111 | /* Handlers for each ethtool command */ |
112 | ||
113 | static int ethtool_get_settings(struct net_device *dev, void __user *useraddr) | |
114 | { | |
115 | struct ethtool_cmd cmd = { ETHTOOL_GSET }; | |
116 | int err; | |
117 | ||
118 | if (!dev->ethtool_ops->get_settings) | |
119 | return -EOPNOTSUPP; | |
120 | ||
121 | err = dev->ethtool_ops->get_settings(dev, &cmd); | |
122 | if (err < 0) | |
123 | return err; | |
124 | ||
125 | if (copy_to_user(useraddr, &cmd, sizeof(cmd))) | |
126 | return -EFAULT; | |
127 | return 0; | |
128 | } | |
129 | ||
130 | static int ethtool_set_settings(struct net_device *dev, void __user *useraddr) | |
131 | { | |
132 | struct ethtool_cmd cmd; | |
133 | ||
134 | if (!dev->ethtool_ops->set_settings) | |
135 | return -EOPNOTSUPP; | |
136 | ||
137 | if (copy_from_user(&cmd, useraddr, sizeof(cmd))) | |
138 | return -EFAULT; | |
139 | ||
140 | return dev->ethtool_ops->set_settings(dev, &cmd); | |
141 | } | |
142 | ||
143 | static int ethtool_get_drvinfo(struct net_device *dev, void __user *useraddr) | |
144 | { | |
145 | struct ethtool_drvinfo info; | |
146 | struct ethtool_ops *ops = dev->ethtool_ops; | |
147 | ||
148 | if (!ops->get_drvinfo) | |
149 | return -EOPNOTSUPP; | |
150 | ||
151 | memset(&info, 0, sizeof(info)); | |
152 | info.cmd = ETHTOOL_GDRVINFO; | |
153 | ops->get_drvinfo(dev, &info); | |
154 | ||
155 | if (ops->self_test_count) | |
156 | info.testinfo_len = ops->self_test_count(dev); | |
157 | if (ops->get_stats_count) | |
158 | info.n_stats = ops->get_stats_count(dev); | |
159 | if (ops->get_regs_len) | |
160 | info.regdump_len = ops->get_regs_len(dev); | |
161 | if (ops->get_eeprom_len) | |
162 | info.eedump_len = ops->get_eeprom_len(dev); | |
163 | ||
164 | if (copy_to_user(useraddr, &info, sizeof(info))) | |
165 | return -EFAULT; | |
166 | return 0; | |
167 | } | |
168 | ||
169 | static int ethtool_get_regs(struct net_device *dev, char __user *useraddr) | |
170 | { | |
171 | struct ethtool_regs regs; | |
172 | struct ethtool_ops *ops = dev->ethtool_ops; | |
173 | void *regbuf; | |
174 | int reglen, ret; | |
175 | ||
176 | if (!ops->get_regs || !ops->get_regs_len) | |
177 | return -EOPNOTSUPP; | |
178 | ||
179 | if (copy_from_user(®s, useraddr, sizeof(regs))) | |
180 | return -EFAULT; | |
181 | ||
182 | reglen = ops->get_regs_len(dev); | |
183 | if (regs.len > reglen) | |
184 | regs.len = reglen; | |
185 | ||
186 | regbuf = kmalloc(reglen, GFP_USER); | |
187 | if (!regbuf) | |
188 | return -ENOMEM; | |
189 | ||
190 | ops->get_regs(dev, ®s, regbuf); | |
191 | ||
192 | ret = -EFAULT; | |
193 | if (copy_to_user(useraddr, ®s, sizeof(regs))) | |
194 | goto out; | |
195 | useraddr += offsetof(struct ethtool_regs, data); | |
196 | if (copy_to_user(useraddr, regbuf, regs.len)) | |
197 | goto out; | |
198 | ret = 0; | |
199 | ||
200 | out: | |
201 | kfree(regbuf); | |
202 | return ret; | |
203 | } | |
204 | ||
205 | static int ethtool_get_wol(struct net_device *dev, char __user *useraddr) | |
206 | { | |
207 | struct ethtool_wolinfo wol = { ETHTOOL_GWOL }; | |
208 | ||
209 | if (!dev->ethtool_ops->get_wol) | |
210 | return -EOPNOTSUPP; | |
211 | ||
212 | dev->ethtool_ops->get_wol(dev, &wol); | |
213 | ||
214 | if (copy_to_user(useraddr, &wol, sizeof(wol))) | |
215 | return -EFAULT; | |
216 | return 0; | |
217 | } | |
218 | ||
219 | static int ethtool_set_wol(struct net_device *dev, char __user *useraddr) | |
220 | { | |
221 | struct ethtool_wolinfo wol; | |
222 | ||
223 | if (!dev->ethtool_ops->set_wol) | |
224 | return -EOPNOTSUPP; | |
225 | ||
226 | if (copy_from_user(&wol, useraddr, sizeof(wol))) | |
227 | return -EFAULT; | |
228 | ||
229 | return dev->ethtool_ops->set_wol(dev, &wol); | |
230 | } | |
231 | ||
232 | static int ethtool_get_msglevel(struct net_device *dev, char __user *useraddr) | |
233 | { | |
234 | struct ethtool_value edata = { ETHTOOL_GMSGLVL }; | |
235 | ||
236 | if (!dev->ethtool_ops->get_msglevel) | |
237 | return -EOPNOTSUPP; | |
238 | ||
239 | edata.data = dev->ethtool_ops->get_msglevel(dev); | |
240 | ||
241 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
242 | return -EFAULT; | |
243 | return 0; | |
244 | } | |
245 | ||
246 | static int ethtool_set_msglevel(struct net_device *dev, char __user *useraddr) | |
247 | { | |
248 | struct ethtool_value edata; | |
249 | ||
250 | if (!dev->ethtool_ops->set_msglevel) | |
251 | return -EOPNOTSUPP; | |
252 | ||
253 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
254 | return -EFAULT; | |
255 | ||
256 | dev->ethtool_ops->set_msglevel(dev, edata.data); | |
257 | return 0; | |
258 | } | |
259 | ||
260 | static int ethtool_nway_reset(struct net_device *dev) | |
261 | { | |
262 | if (!dev->ethtool_ops->nway_reset) | |
263 | return -EOPNOTSUPP; | |
264 | ||
265 | return dev->ethtool_ops->nway_reset(dev); | |
266 | } | |
267 | ||
268 | static int ethtool_get_link(struct net_device *dev, void __user *useraddr) | |
269 | { | |
270 | struct ethtool_value edata = { ETHTOOL_GLINK }; | |
271 | ||
272 | if (!dev->ethtool_ops->get_link) | |
273 | return -EOPNOTSUPP; | |
274 | ||
275 | edata.data = dev->ethtool_ops->get_link(dev); | |
276 | ||
277 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
278 | return -EFAULT; | |
279 | return 0; | |
280 | } | |
281 | ||
282 | static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr) | |
283 | { | |
284 | struct ethtool_eeprom eeprom; | |
285 | struct ethtool_ops *ops = dev->ethtool_ops; | |
286 | u8 *data; | |
287 | int ret; | |
288 | ||
289 | if (!ops->get_eeprom || !ops->get_eeprom_len) | |
290 | return -EOPNOTSUPP; | |
291 | ||
292 | if (copy_from_user(&eeprom, useraddr, sizeof(eeprom))) | |
293 | return -EFAULT; | |
294 | ||
295 | /* Check for wrap and zero */ | |
296 | if (eeprom.offset + eeprom.len <= eeprom.offset) | |
297 | return -EINVAL; | |
298 | ||
299 | /* Check for exceeding total eeprom len */ | |
300 | if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev)) | |
301 | return -EINVAL; | |
302 | ||
303 | data = kmalloc(eeprom.len, GFP_USER); | |
304 | if (!data) | |
305 | return -ENOMEM; | |
306 | ||
307 | ret = -EFAULT; | |
308 | if (copy_from_user(data, useraddr + sizeof(eeprom), eeprom.len)) | |
309 | goto out; | |
310 | ||
311 | ret = ops->get_eeprom(dev, &eeprom, data); | |
312 | if (ret) | |
313 | goto out; | |
314 | ||
315 | ret = -EFAULT; | |
316 | if (copy_to_user(useraddr, &eeprom, sizeof(eeprom))) | |
317 | goto out; | |
318 | if (copy_to_user(useraddr + sizeof(eeprom), data, eeprom.len)) | |
319 | goto out; | |
320 | ret = 0; | |
321 | ||
322 | out: | |
323 | kfree(data); | |
324 | return ret; | |
325 | } | |
326 | ||
327 | static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr) | |
328 | { | |
329 | struct ethtool_eeprom eeprom; | |
330 | struct ethtool_ops *ops = dev->ethtool_ops; | |
331 | u8 *data; | |
332 | int ret; | |
333 | ||
334 | if (!ops->set_eeprom || !ops->get_eeprom_len) | |
335 | return -EOPNOTSUPP; | |
336 | ||
337 | if (copy_from_user(&eeprom, useraddr, sizeof(eeprom))) | |
338 | return -EFAULT; | |
339 | ||
340 | /* Check for wrap and zero */ | |
341 | if (eeprom.offset + eeprom.len <= eeprom.offset) | |
342 | return -EINVAL; | |
343 | ||
344 | /* Check for exceeding total eeprom len */ | |
345 | if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev)) | |
346 | return -EINVAL; | |
347 | ||
348 | data = kmalloc(eeprom.len, GFP_USER); | |
349 | if (!data) | |
350 | return -ENOMEM; | |
351 | ||
352 | ret = -EFAULT; | |
353 | if (copy_from_user(data, useraddr + sizeof(eeprom), eeprom.len)) | |
354 | goto out; | |
355 | ||
356 | ret = ops->set_eeprom(dev, &eeprom, data); | |
357 | if (ret) | |
358 | goto out; | |
359 | ||
360 | if (copy_to_user(useraddr + sizeof(eeprom), data, eeprom.len)) | |
361 | ret = -EFAULT; | |
362 | ||
363 | out: | |
364 | kfree(data); | |
365 | return ret; | |
366 | } | |
367 | ||
368 | static int ethtool_get_coalesce(struct net_device *dev, void __user *useraddr) | |
369 | { | |
370 | struct ethtool_coalesce coalesce = { ETHTOOL_GCOALESCE }; | |
371 | ||
372 | if (!dev->ethtool_ops->get_coalesce) | |
373 | return -EOPNOTSUPP; | |
374 | ||
375 | dev->ethtool_ops->get_coalesce(dev, &coalesce); | |
376 | ||
377 | if (copy_to_user(useraddr, &coalesce, sizeof(coalesce))) | |
378 | return -EFAULT; | |
379 | return 0; | |
380 | } | |
381 | ||
382 | static int ethtool_set_coalesce(struct net_device *dev, void __user *useraddr) | |
383 | { | |
384 | struct ethtool_coalesce coalesce; | |
385 | ||
fa04ae5c | 386 | if (!dev->ethtool_ops->set_coalesce) |
1da177e4 LT |
387 | return -EOPNOTSUPP; |
388 | ||
389 | if (copy_from_user(&coalesce, useraddr, sizeof(coalesce))) | |
390 | return -EFAULT; | |
391 | ||
392 | return dev->ethtool_ops->set_coalesce(dev, &coalesce); | |
393 | } | |
394 | ||
395 | static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr) | |
396 | { | |
397 | struct ethtool_ringparam ringparam = { ETHTOOL_GRINGPARAM }; | |
398 | ||
399 | if (!dev->ethtool_ops->get_ringparam) | |
400 | return -EOPNOTSUPP; | |
401 | ||
402 | dev->ethtool_ops->get_ringparam(dev, &ringparam); | |
403 | ||
404 | if (copy_to_user(useraddr, &ringparam, sizeof(ringparam))) | |
405 | return -EFAULT; | |
406 | return 0; | |
407 | } | |
408 | ||
409 | static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr) | |
410 | { | |
411 | struct ethtool_ringparam ringparam; | |
412 | ||
413 | if (!dev->ethtool_ops->set_ringparam) | |
414 | return -EOPNOTSUPP; | |
415 | ||
416 | if (copy_from_user(&ringparam, useraddr, sizeof(ringparam))) | |
417 | return -EFAULT; | |
418 | ||
419 | return dev->ethtool_ops->set_ringparam(dev, &ringparam); | |
420 | } | |
421 | ||
422 | static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr) | |
423 | { | |
424 | struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM }; | |
425 | ||
426 | if (!dev->ethtool_ops->get_pauseparam) | |
427 | return -EOPNOTSUPP; | |
428 | ||
429 | dev->ethtool_ops->get_pauseparam(dev, &pauseparam); | |
430 | ||
431 | if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam))) | |
432 | return -EFAULT; | |
433 | return 0; | |
434 | } | |
435 | ||
436 | static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr) | |
437 | { | |
438 | struct ethtool_pauseparam pauseparam; | |
439 | ||
440 | if (!dev->ethtool_ops->get_pauseparam) | |
441 | return -EOPNOTSUPP; | |
442 | ||
443 | if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam))) | |
444 | return -EFAULT; | |
445 | ||
446 | return dev->ethtool_ops->set_pauseparam(dev, &pauseparam); | |
447 | } | |
448 | ||
449 | static int ethtool_get_rx_csum(struct net_device *dev, char __user *useraddr) | |
450 | { | |
451 | struct ethtool_value edata = { ETHTOOL_GRXCSUM }; | |
452 | ||
453 | if (!dev->ethtool_ops->get_rx_csum) | |
454 | return -EOPNOTSUPP; | |
455 | ||
456 | edata.data = dev->ethtool_ops->get_rx_csum(dev); | |
457 | ||
458 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
459 | return -EFAULT; | |
460 | return 0; | |
461 | } | |
462 | ||
463 | static int ethtool_set_rx_csum(struct net_device *dev, char __user *useraddr) | |
464 | { | |
465 | struct ethtool_value edata; | |
466 | ||
467 | if (!dev->ethtool_ops->set_rx_csum) | |
468 | return -EOPNOTSUPP; | |
469 | ||
470 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
471 | return -EFAULT; | |
472 | ||
473 | dev->ethtool_ops->set_rx_csum(dev, edata.data); | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static int ethtool_get_tx_csum(struct net_device *dev, char __user *useraddr) | |
478 | { | |
479 | struct ethtool_value edata = { ETHTOOL_GTXCSUM }; | |
480 | ||
481 | if (!dev->ethtool_ops->get_tx_csum) | |
482 | return -EOPNOTSUPP; | |
483 | ||
484 | edata.data = dev->ethtool_ops->get_tx_csum(dev); | |
485 | ||
486 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
487 | return -EFAULT; | |
488 | return 0; | |
489 | } | |
490 | ||
491 | static int __ethtool_set_sg(struct net_device *dev, u32 data) | |
492 | { | |
493 | int err; | |
494 | ||
495 | if (!data && dev->ethtool_ops->set_tso) { | |
496 | err = dev->ethtool_ops->set_tso(dev, 0); | |
497 | if (err) | |
498 | return err; | |
499 | } | |
500 | ||
e89e9cf5 AR |
501 | if (!data && dev->ethtool_ops->set_ufo) { |
502 | err = dev->ethtool_ops->set_ufo(dev, 0); | |
503 | if (err) | |
504 | return err; | |
505 | } | |
1da177e4 LT |
506 | return dev->ethtool_ops->set_sg(dev, data); |
507 | } | |
508 | ||
509 | static int ethtool_set_tx_csum(struct net_device *dev, char __user *useraddr) | |
510 | { | |
511 | struct ethtool_value edata; | |
512 | int err; | |
513 | ||
514 | if (!dev->ethtool_ops->set_tx_csum) | |
515 | return -EOPNOTSUPP; | |
516 | ||
517 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
518 | return -EFAULT; | |
519 | ||
520 | if (!edata.data && dev->ethtool_ops->set_sg) { | |
521 | err = __ethtool_set_sg(dev, 0); | |
522 | if (err) | |
523 | return err; | |
524 | } | |
525 | ||
526 | return dev->ethtool_ops->set_tx_csum(dev, edata.data); | |
527 | } | |
528 | ||
529 | static int ethtool_get_sg(struct net_device *dev, char __user *useraddr) | |
530 | { | |
531 | struct ethtool_value edata = { ETHTOOL_GSG }; | |
532 | ||
533 | if (!dev->ethtool_ops->get_sg) | |
534 | return -EOPNOTSUPP; | |
535 | ||
536 | edata.data = dev->ethtool_ops->get_sg(dev); | |
537 | ||
538 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
539 | return -EFAULT; | |
540 | return 0; | |
541 | } | |
542 | ||
543 | static int ethtool_set_sg(struct net_device *dev, char __user *useraddr) | |
544 | { | |
545 | struct ethtool_value edata; | |
546 | ||
547 | if (!dev->ethtool_ops->set_sg) | |
548 | return -EOPNOTSUPP; | |
549 | ||
550 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
551 | return -EFAULT; | |
552 | ||
553 | if (edata.data && | |
554 | !(dev->features & (NETIF_F_IP_CSUM | | |
555 | NETIF_F_NO_CSUM | | |
556 | NETIF_F_HW_CSUM))) | |
557 | return -EINVAL; | |
558 | ||
559 | return __ethtool_set_sg(dev, edata.data); | |
560 | } | |
561 | ||
562 | static int ethtool_get_tso(struct net_device *dev, char __user *useraddr) | |
563 | { | |
564 | struct ethtool_value edata = { ETHTOOL_GTSO }; | |
565 | ||
566 | if (!dev->ethtool_ops->get_tso) | |
567 | return -EOPNOTSUPP; | |
568 | ||
569 | edata.data = dev->ethtool_ops->get_tso(dev); | |
570 | ||
571 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
572 | return -EFAULT; | |
573 | return 0; | |
574 | } | |
575 | ||
576 | static int ethtool_set_tso(struct net_device *dev, char __user *useraddr) | |
577 | { | |
578 | struct ethtool_value edata; | |
579 | ||
580 | if (!dev->ethtool_ops->set_tso) | |
581 | return -EOPNOTSUPP; | |
582 | ||
583 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
584 | return -EFAULT; | |
585 | ||
586 | if (edata.data && !(dev->features & NETIF_F_SG)) | |
587 | return -EINVAL; | |
588 | ||
589 | return dev->ethtool_ops->set_tso(dev, edata.data); | |
590 | } | |
591 | ||
e89e9cf5 AR |
592 | static int ethtool_get_ufo(struct net_device *dev, char __user *useraddr) |
593 | { | |
594 | struct ethtool_value edata = { ETHTOOL_GTSO }; | |
595 | ||
596 | if (!dev->ethtool_ops->get_ufo) | |
597 | return -EOPNOTSUPP; | |
598 | edata.data = dev->ethtool_ops->get_ufo(dev); | |
599 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
600 | return -EFAULT; | |
601 | return 0; | |
602 | } | |
603 | static int ethtool_set_ufo(struct net_device *dev, char __user *useraddr) | |
604 | { | |
605 | struct ethtool_value edata; | |
606 | ||
607 | if (!dev->ethtool_ops->set_ufo) | |
608 | return -EOPNOTSUPP; | |
609 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
610 | return -EFAULT; | |
611 | if (edata.data && !(dev->features & NETIF_F_SG)) | |
612 | return -EINVAL; | |
613 | if (edata.data && !(dev->features & NETIF_F_HW_CSUM)) | |
614 | return -EINVAL; | |
615 | return dev->ethtool_ops->set_ufo(dev, edata.data); | |
616 | } | |
617 | ||
1da177e4 LT |
618 | static int ethtool_self_test(struct net_device *dev, char __user *useraddr) |
619 | { | |
620 | struct ethtool_test test; | |
621 | struct ethtool_ops *ops = dev->ethtool_ops; | |
622 | u64 *data; | |
623 | int ret; | |
624 | ||
625 | if (!ops->self_test || !ops->self_test_count) | |
626 | return -EOPNOTSUPP; | |
627 | ||
628 | if (copy_from_user(&test, useraddr, sizeof(test))) | |
629 | return -EFAULT; | |
630 | ||
631 | test.len = ops->self_test_count(dev); | |
632 | data = kmalloc(test.len * sizeof(u64), GFP_USER); | |
633 | if (!data) | |
634 | return -ENOMEM; | |
635 | ||
636 | ops->self_test(dev, &test, data); | |
637 | ||
638 | ret = -EFAULT; | |
639 | if (copy_to_user(useraddr, &test, sizeof(test))) | |
640 | goto out; | |
641 | useraddr += sizeof(test); | |
642 | if (copy_to_user(useraddr, data, test.len * sizeof(u64))) | |
643 | goto out; | |
644 | ret = 0; | |
645 | ||
646 | out: | |
647 | kfree(data); | |
648 | return ret; | |
649 | } | |
650 | ||
651 | static int ethtool_get_strings(struct net_device *dev, void __user *useraddr) | |
652 | { | |
653 | struct ethtool_gstrings gstrings; | |
654 | struct ethtool_ops *ops = dev->ethtool_ops; | |
655 | u8 *data; | |
656 | int ret; | |
657 | ||
658 | if (!ops->get_strings) | |
659 | return -EOPNOTSUPP; | |
660 | ||
661 | if (copy_from_user(&gstrings, useraddr, sizeof(gstrings))) | |
662 | return -EFAULT; | |
663 | ||
664 | switch (gstrings.string_set) { | |
665 | case ETH_SS_TEST: | |
666 | if (!ops->self_test_count) | |
667 | return -EOPNOTSUPP; | |
668 | gstrings.len = ops->self_test_count(dev); | |
669 | break; | |
670 | case ETH_SS_STATS: | |
671 | if (!ops->get_stats_count) | |
672 | return -EOPNOTSUPP; | |
673 | gstrings.len = ops->get_stats_count(dev); | |
674 | break; | |
675 | default: | |
676 | return -EINVAL; | |
677 | } | |
678 | ||
679 | data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER); | |
680 | if (!data) | |
681 | return -ENOMEM; | |
682 | ||
683 | ops->get_strings(dev, gstrings.string_set, data); | |
684 | ||
685 | ret = -EFAULT; | |
686 | if (copy_to_user(useraddr, &gstrings, sizeof(gstrings))) | |
687 | goto out; | |
688 | useraddr += sizeof(gstrings); | |
689 | if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN)) | |
690 | goto out; | |
691 | ret = 0; | |
692 | ||
693 | out: | |
694 | kfree(data); | |
695 | return ret; | |
696 | } | |
697 | ||
698 | static int ethtool_phys_id(struct net_device *dev, void __user *useraddr) | |
699 | { | |
700 | struct ethtool_value id; | |
701 | ||
702 | if (!dev->ethtool_ops->phys_id) | |
703 | return -EOPNOTSUPP; | |
704 | ||
705 | if (copy_from_user(&id, useraddr, sizeof(id))) | |
706 | return -EFAULT; | |
707 | ||
708 | return dev->ethtool_ops->phys_id(dev, id.data); | |
709 | } | |
710 | ||
711 | static int ethtool_get_stats(struct net_device *dev, void __user *useraddr) | |
712 | { | |
713 | struct ethtool_stats stats; | |
714 | struct ethtool_ops *ops = dev->ethtool_ops; | |
715 | u64 *data; | |
716 | int ret; | |
717 | ||
718 | if (!ops->get_ethtool_stats || !ops->get_stats_count) | |
719 | return -EOPNOTSUPP; | |
720 | ||
721 | if (copy_from_user(&stats, useraddr, sizeof(stats))) | |
722 | return -EFAULT; | |
723 | ||
724 | stats.n_stats = ops->get_stats_count(dev); | |
725 | data = kmalloc(stats.n_stats * sizeof(u64), GFP_USER); | |
726 | if (!data) | |
727 | return -ENOMEM; | |
728 | ||
729 | ops->get_ethtool_stats(dev, &stats, data); | |
730 | ||
731 | ret = -EFAULT; | |
732 | if (copy_to_user(useraddr, &stats, sizeof(stats))) | |
733 | goto out; | |
734 | useraddr += sizeof(stats); | |
735 | if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64))) | |
736 | goto out; | |
737 | ret = 0; | |
738 | ||
739 | out: | |
740 | kfree(data); | |
741 | return ret; | |
742 | } | |
743 | ||
0bf0519d | 744 | static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr) |
a6f9a705 JW |
745 | { |
746 | struct ethtool_perm_addr epaddr; | |
747 | u8 *data; | |
748 | int ret; | |
749 | ||
750 | if (!dev->ethtool_ops->get_perm_addr) | |
751 | return -EOPNOTSUPP; | |
752 | ||
753 | if (copy_from_user(&epaddr,useraddr,sizeof(epaddr))) | |
754 | return -EFAULT; | |
755 | ||
756 | data = kmalloc(epaddr.size, GFP_USER); | |
757 | if (!data) | |
758 | return -ENOMEM; | |
759 | ||
760 | ret = dev->ethtool_ops->get_perm_addr(dev,&epaddr,data); | |
761 | if (ret) | |
762 | return ret; | |
763 | ||
764 | ret = -EFAULT; | |
765 | if (copy_to_user(useraddr, &epaddr, sizeof(epaddr))) | |
766 | goto out; | |
767 | useraddr += sizeof(epaddr); | |
768 | if (copy_to_user(useraddr, data, epaddr.size)) | |
769 | goto out; | |
770 | ret = 0; | |
771 | ||
772 | out: | |
773 | kfree(data); | |
774 | return ret; | |
775 | } | |
776 | ||
1da177e4 LT |
777 | /* The main entry point in this file. Called from net/core/dev.c */ |
778 | ||
779 | int dev_ethtool(struct ifreq *ifr) | |
780 | { | |
781 | struct net_device *dev = __dev_get_by_name(ifr->ifr_name); | |
782 | void __user *useraddr = ifr->ifr_data; | |
783 | u32 ethcmd; | |
784 | int rc; | |
81e81575 | 785 | unsigned long old_features; |
1da177e4 LT |
786 | |
787 | /* | |
788 | * XXX: This can be pushed down into the ethtool_* handlers that | |
789 | * need it. Keep existing behaviour for the moment. | |
790 | */ | |
791 | if (!capable(CAP_NET_ADMIN)) | |
792 | return -EPERM; | |
793 | ||
794 | if (!dev || !netif_device_present(dev)) | |
795 | return -ENODEV; | |
796 | ||
797 | if (!dev->ethtool_ops) | |
798 | goto ioctl; | |
799 | ||
800 | if (copy_from_user(ðcmd, useraddr, sizeof (ethcmd))) | |
801 | return -EFAULT; | |
802 | ||
803 | if(dev->ethtool_ops->begin) | |
804 | if ((rc = dev->ethtool_ops->begin(dev)) < 0) | |
805 | return rc; | |
806 | ||
d8a33ac4 SH |
807 | old_features = dev->features; |
808 | ||
1da177e4 LT |
809 | switch (ethcmd) { |
810 | case ETHTOOL_GSET: | |
811 | rc = ethtool_get_settings(dev, useraddr); | |
812 | break; | |
813 | case ETHTOOL_SSET: | |
814 | rc = ethtool_set_settings(dev, useraddr); | |
815 | break; | |
816 | case ETHTOOL_GDRVINFO: | |
817 | rc = ethtool_get_drvinfo(dev, useraddr); | |
1da177e4 LT |
818 | break; |
819 | case ETHTOOL_GREGS: | |
820 | rc = ethtool_get_regs(dev, useraddr); | |
821 | break; | |
822 | case ETHTOOL_GWOL: | |
823 | rc = ethtool_get_wol(dev, useraddr); | |
824 | break; | |
825 | case ETHTOOL_SWOL: | |
826 | rc = ethtool_set_wol(dev, useraddr); | |
827 | break; | |
828 | case ETHTOOL_GMSGLVL: | |
829 | rc = ethtool_get_msglevel(dev, useraddr); | |
830 | break; | |
831 | case ETHTOOL_SMSGLVL: | |
832 | rc = ethtool_set_msglevel(dev, useraddr); | |
833 | break; | |
834 | case ETHTOOL_NWAY_RST: | |
835 | rc = ethtool_nway_reset(dev); | |
836 | break; | |
837 | case ETHTOOL_GLINK: | |
838 | rc = ethtool_get_link(dev, useraddr); | |
839 | break; | |
840 | case ETHTOOL_GEEPROM: | |
841 | rc = ethtool_get_eeprom(dev, useraddr); | |
842 | break; | |
843 | case ETHTOOL_SEEPROM: | |
844 | rc = ethtool_set_eeprom(dev, useraddr); | |
845 | break; | |
846 | case ETHTOOL_GCOALESCE: | |
847 | rc = ethtool_get_coalesce(dev, useraddr); | |
848 | break; | |
849 | case ETHTOOL_SCOALESCE: | |
850 | rc = ethtool_set_coalesce(dev, useraddr); | |
851 | break; | |
852 | case ETHTOOL_GRINGPARAM: | |
853 | rc = ethtool_get_ringparam(dev, useraddr); | |
854 | break; | |
855 | case ETHTOOL_SRINGPARAM: | |
856 | rc = ethtool_set_ringparam(dev, useraddr); | |
857 | break; | |
858 | case ETHTOOL_GPAUSEPARAM: | |
859 | rc = ethtool_get_pauseparam(dev, useraddr); | |
860 | break; | |
861 | case ETHTOOL_SPAUSEPARAM: | |
862 | rc = ethtool_set_pauseparam(dev, useraddr); | |
863 | break; | |
864 | case ETHTOOL_GRXCSUM: | |
865 | rc = ethtool_get_rx_csum(dev, useraddr); | |
866 | break; | |
867 | case ETHTOOL_SRXCSUM: | |
868 | rc = ethtool_set_rx_csum(dev, useraddr); | |
869 | break; | |
870 | case ETHTOOL_GTXCSUM: | |
871 | rc = ethtool_get_tx_csum(dev, useraddr); | |
872 | break; | |
873 | case ETHTOOL_STXCSUM: | |
874 | rc = ethtool_set_tx_csum(dev, useraddr); | |
875 | break; | |
876 | case ETHTOOL_GSG: | |
877 | rc = ethtool_get_sg(dev, useraddr); | |
878 | break; | |
879 | case ETHTOOL_SSG: | |
880 | rc = ethtool_set_sg(dev, useraddr); | |
881 | break; | |
882 | case ETHTOOL_GTSO: | |
883 | rc = ethtool_get_tso(dev, useraddr); | |
884 | break; | |
885 | case ETHTOOL_STSO: | |
886 | rc = ethtool_set_tso(dev, useraddr); | |
887 | break; | |
888 | case ETHTOOL_TEST: | |
889 | rc = ethtool_self_test(dev, useraddr); | |
890 | break; | |
891 | case ETHTOOL_GSTRINGS: | |
892 | rc = ethtool_get_strings(dev, useraddr); | |
893 | break; | |
894 | case ETHTOOL_PHYS_ID: | |
895 | rc = ethtool_phys_id(dev, useraddr); | |
896 | break; | |
897 | case ETHTOOL_GSTATS: | |
898 | rc = ethtool_get_stats(dev, useraddr); | |
899 | break; | |
a6f9a705 JW |
900 | case ETHTOOL_GPERMADDR: |
901 | rc = ethtool_get_perm_addr(dev, useraddr); | |
902 | break; | |
e89e9cf5 AR |
903 | case ETHTOOL_GUFO: |
904 | rc = ethtool_get_ufo(dev, useraddr); | |
905 | break; | |
906 | case ETHTOOL_SUFO: | |
907 | rc = ethtool_set_ufo(dev, useraddr); | |
908 | break; | |
1da177e4 LT |
909 | default: |
910 | rc = -EOPNOTSUPP; | |
911 | } | |
912 | ||
913 | if(dev->ethtool_ops->complete) | |
914 | dev->ethtool_ops->complete(dev); | |
d8a33ac4 SH |
915 | |
916 | if (old_features != dev->features) | |
917 | netdev_features_change(dev); | |
918 | ||
1da177e4 LT |
919 | return rc; |
920 | ||
921 | ioctl: | |
922 | if (dev->do_ioctl) | |
923 | return dev->do_ioctl(dev, ifr, SIOCETHTOOL); | |
924 | return -EOPNOTSUPP; | |
925 | } | |
926 | ||
927 | EXPORT_SYMBOL(dev_ethtool); | |
928 | EXPORT_SYMBOL(ethtool_op_get_link); | |
a6f9a705 | 929 | EXPORT_SYMBOL_GPL(ethtool_op_get_perm_addr); |
1da177e4 LT |
930 | EXPORT_SYMBOL(ethtool_op_get_sg); |
931 | EXPORT_SYMBOL(ethtool_op_get_tso); | |
932 | EXPORT_SYMBOL(ethtool_op_get_tx_csum); | |
933 | EXPORT_SYMBOL(ethtool_op_set_sg); | |
934 | EXPORT_SYMBOL(ethtool_op_set_tso); | |
935 | EXPORT_SYMBOL(ethtool_op_set_tx_csum); | |
69f6a0fa | 936 | EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum); |
e89e9cf5 AR |
937 | EXPORT_SYMBOL(ethtool_op_set_ufo); |
938 | EXPORT_SYMBOL(ethtool_op_get_ufo); |