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