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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> | |
d17792eb | 20 | #include <linux/bitops.h> |
97f8aefb | 21 | #include <linux/uaccess.h> |
73da16c2 | 22 | #include <linux/vmalloc.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
1da177e4 | 24 | |
4ec93edb | 25 | /* |
1da177e4 LT |
26 | * Some useful ethtool_ops methods that're device independent. |
27 | * If we find that all drivers want to do the same thing here, | |
28 | * we can turn these into dev_() function calls. | |
29 | */ | |
30 | ||
31 | u32 ethtool_op_get_link(struct net_device *dev) | |
32 | { | |
33 | return netif_carrier_ok(dev) ? 1 : 0; | |
34 | } | |
97f8aefb | 35 | EXPORT_SYMBOL(ethtool_op_get_link); |
1da177e4 LT |
36 | |
37 | u32 ethtool_op_get_tx_csum(struct net_device *dev) | |
38 | { | |
8648b305 | 39 | return (dev->features & NETIF_F_ALL_CSUM) != 0; |
1da177e4 | 40 | } |
8a729fce | 41 | EXPORT_SYMBOL(ethtool_op_get_tx_csum); |
1da177e4 LT |
42 | |
43 | int ethtool_op_set_tx_csum(struct net_device *dev, u32 data) | |
44 | { | |
45 | if (data) | |
46 | dev->features |= NETIF_F_IP_CSUM; | |
47 | else | |
48 | dev->features &= ~NETIF_F_IP_CSUM; | |
49 | ||
50 | return 0; | |
51 | } | |
9a279ea3 | 52 | EXPORT_SYMBOL(ethtool_op_set_tx_csum); |
1da177e4 | 53 | |
69f6a0fa JM |
54 | int ethtool_op_set_tx_hw_csum(struct net_device *dev, u32 data) |
55 | { | |
56 | if (data) | |
57 | dev->features |= NETIF_F_HW_CSUM; | |
58 | else | |
59 | dev->features &= ~NETIF_F_HW_CSUM; | |
60 | ||
61 | return 0; | |
62 | } | |
97f8aefb | 63 | EXPORT_SYMBOL(ethtool_op_set_tx_hw_csum); |
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 | } | |
97f8aefb | 74 | EXPORT_SYMBOL(ethtool_op_set_tx_ipv6_csum); |
6460d948 | 75 | |
1da177e4 LT |
76 | u32 ethtool_op_get_sg(struct net_device *dev) |
77 | { | |
78 | return (dev->features & NETIF_F_SG) != 0; | |
79 | } | |
97f8aefb | 80 | EXPORT_SYMBOL(ethtool_op_get_sg); |
1da177e4 LT |
81 | |
82 | int 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 | } | |
97f8aefb | 91 | EXPORT_SYMBOL(ethtool_op_set_sg); |
1da177e4 LT |
92 | |
93 | u32 ethtool_op_get_tso(struct net_device *dev) | |
94 | { | |
95 | return (dev->features & NETIF_F_TSO) != 0; | |
96 | } | |
97f8aefb | 97 | EXPORT_SYMBOL(ethtool_op_get_tso); |
1da177e4 LT |
98 | |
99 | int ethtool_op_set_tso(struct net_device *dev, u32 data) | |
100 | { | |
101 | if (data) | |
102 | dev->features |= NETIF_F_TSO; | |
103 | else | |
104 | dev->features &= ~NETIF_F_TSO; | |
105 | ||
106 | return 0; | |
107 | } | |
97f8aefb | 108 | EXPORT_SYMBOL(ethtool_op_set_tso); |
1da177e4 | 109 | |
e89e9cf5 AR |
110 | u32 ethtool_op_get_ufo(struct net_device *dev) |
111 | { | |
112 | return (dev->features & NETIF_F_UFO) != 0; | |
113 | } | |
97f8aefb | 114 | EXPORT_SYMBOL(ethtool_op_get_ufo); |
e89e9cf5 AR |
115 | |
116 | int ethtool_op_set_ufo(struct net_device *dev, u32 data) | |
117 | { | |
118 | if (data) | |
119 | dev->features |= NETIF_F_UFO; | |
120 | else | |
121 | dev->features &= ~NETIF_F_UFO; | |
122 | return 0; | |
123 | } | |
97f8aefb | 124 | EXPORT_SYMBOL(ethtool_op_set_ufo); |
e89e9cf5 | 125 | |
3ae7c0b2 JG |
126 | /* the following list of flags are the same as their associated |
127 | * NETIF_F_xxx values in include/linux/netdevice.h | |
128 | */ | |
129 | static const u32 flags_dup_features = | |
d5dbda23 JG |
130 | (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | ETH_FLAG_NTUPLE | |
131 | ETH_FLAG_RXHASH); | |
3ae7c0b2 JG |
132 | |
133 | u32 ethtool_op_get_flags(struct net_device *dev) | |
134 | { | |
135 | /* in the future, this function will probably contain additional | |
136 | * handling for flags which are not so easily handled | |
137 | * by a simple masking operation | |
138 | */ | |
139 | ||
140 | return dev->features & flags_dup_features; | |
141 | } | |
97f8aefb | 142 | EXPORT_SYMBOL(ethtool_op_get_flags); |
3ae7c0b2 | 143 | |
1437ce39 | 144 | int ethtool_op_set_flags(struct net_device *dev, u32 data, u32 supported) |
3ae7c0b2 | 145 | { |
1437ce39 BH |
146 | if (data & ~supported) |
147 | return -EINVAL; | |
0d643e1f | 148 | |
1437ce39 BH |
149 | dev->features = ((dev->features & ~flags_dup_features) | |
150 | (data & flags_dup_features)); | |
3ae7c0b2 JG |
151 | return 0; |
152 | } | |
97f8aefb | 153 | EXPORT_SYMBOL(ethtool_op_set_flags); |
3ae7c0b2 | 154 | |
15682bc4 PWJ |
155 | void ethtool_ntuple_flush(struct net_device *dev) |
156 | { | |
157 | struct ethtool_rx_ntuple_flow_spec_container *fsc, *f; | |
158 | ||
159 | list_for_each_entry_safe(fsc, f, &dev->ethtool_ntuple_list.list, list) { | |
160 | list_del(&fsc->list); | |
161 | kfree(fsc); | |
162 | } | |
163 | dev->ethtool_ntuple_list.count = 0; | |
164 | } | |
165 | EXPORT_SYMBOL(ethtool_ntuple_flush); | |
166 | ||
1da177e4 LT |
167 | /* Handlers for each ethtool command */ |
168 | ||
5455c699 MM |
169 | #define ETHTOOL_DEV_FEATURE_WORDS 1 |
170 | ||
4e4db200 MM |
171 | static void ethtool_get_features_compat(struct net_device *dev, |
172 | struct ethtool_get_features_block *features) | |
173 | { | |
174 | if (!dev->ethtool_ops) | |
175 | return; | |
176 | ||
177 | /* getting RX checksum */ | |
178 | if (dev->ethtool_ops->get_rx_csum) | |
179 | if (dev->ethtool_ops->get_rx_csum(dev)) | |
180 | features[0].active |= NETIF_F_RXCSUM; | |
39fc0ce5 MM |
181 | |
182 | /* mark legacy-changeable features */ | |
183 | if (dev->ethtool_ops->set_sg) | |
184 | features[0].available |= NETIF_F_SG; | |
185 | if (dev->ethtool_ops->set_tx_csum) | |
186 | features[0].available |= NETIF_F_ALL_CSUM; | |
187 | if (dev->ethtool_ops->set_tso) | |
188 | features[0].available |= NETIF_F_ALL_TSO; | |
189 | if (dev->ethtool_ops->set_rx_csum) | |
190 | features[0].available |= NETIF_F_RXCSUM; | |
191 | if (dev->ethtool_ops->set_flags) | |
192 | features[0].available |= flags_dup_features; | |
193 | } | |
194 | ||
195 | static int ethtool_set_feature_compat(struct net_device *dev, | |
196 | int (*legacy_set)(struct net_device *, u32), | |
197 | struct ethtool_set_features_block *features, u32 mask) | |
198 | { | |
199 | u32 do_set; | |
200 | ||
201 | if (!legacy_set) | |
202 | return 0; | |
203 | ||
204 | if (!(features[0].valid & mask)) | |
205 | return 0; | |
206 | ||
207 | features[0].valid &= ~mask; | |
208 | ||
209 | do_set = !!(features[0].requested & mask); | |
210 | ||
211 | if (legacy_set(dev, do_set) < 0) | |
212 | netdev_info(dev, | |
213 | "Legacy feature change (%s) failed for 0x%08x\n", | |
214 | do_set ? "set" : "clear", mask); | |
215 | ||
216 | return 1; | |
217 | } | |
218 | ||
219 | static int ethtool_set_features_compat(struct net_device *dev, | |
220 | struct ethtool_set_features_block *features) | |
221 | { | |
222 | int compat; | |
223 | ||
224 | if (!dev->ethtool_ops) | |
225 | return 0; | |
226 | ||
227 | compat = ethtool_set_feature_compat(dev, dev->ethtool_ops->set_sg, | |
228 | features, NETIF_F_SG); | |
229 | compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_tx_csum, | |
230 | features, NETIF_F_ALL_CSUM); | |
231 | compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_tso, | |
232 | features, NETIF_F_ALL_TSO); | |
233 | compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_rx_csum, | |
234 | features, NETIF_F_RXCSUM); | |
235 | compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_flags, | |
236 | features, flags_dup_features); | |
237 | ||
238 | return compat; | |
4e4db200 MM |
239 | } |
240 | ||
5455c699 MM |
241 | static int ethtool_get_features(struct net_device *dev, void __user *useraddr) |
242 | { | |
243 | struct ethtool_gfeatures cmd = { | |
244 | .cmd = ETHTOOL_GFEATURES, | |
245 | .size = ETHTOOL_DEV_FEATURE_WORDS, | |
246 | }; | |
247 | struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS] = { | |
248 | { | |
249 | .available = dev->hw_features, | |
250 | .requested = dev->wanted_features, | |
251 | .active = dev->features, | |
252 | .never_changed = NETIF_F_NEVER_CHANGE, | |
253 | }, | |
254 | }; | |
255 | u32 __user *sizeaddr; | |
256 | u32 copy_size; | |
257 | ||
4e4db200 MM |
258 | ethtool_get_features_compat(dev, features); |
259 | ||
5455c699 MM |
260 | sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size); |
261 | if (get_user(copy_size, sizeaddr)) | |
262 | return -EFAULT; | |
263 | ||
264 | if (copy_size > ETHTOOL_DEV_FEATURE_WORDS) | |
265 | copy_size = ETHTOOL_DEV_FEATURE_WORDS; | |
266 | ||
267 | if (copy_to_user(useraddr, &cmd, sizeof(cmd))) | |
268 | return -EFAULT; | |
269 | useraddr += sizeof(cmd); | |
270 | if (copy_to_user(useraddr, features, copy_size * sizeof(*features))) | |
271 | return -EFAULT; | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
276 | static int ethtool_set_features(struct net_device *dev, void __user *useraddr) | |
277 | { | |
278 | struct ethtool_sfeatures cmd; | |
279 | struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS]; | |
280 | int ret = 0; | |
281 | ||
282 | if (copy_from_user(&cmd, useraddr, sizeof(cmd))) | |
283 | return -EFAULT; | |
284 | useraddr += sizeof(cmd); | |
285 | ||
286 | if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS) | |
287 | return -EINVAL; | |
288 | ||
289 | if (copy_from_user(features, useraddr, sizeof(features))) | |
290 | return -EFAULT; | |
291 | ||
292 | if (features[0].valid & ~NETIF_F_ETHTOOL_BITS) | |
293 | return -EINVAL; | |
294 | ||
39fc0ce5 MM |
295 | if (ethtool_set_features_compat(dev, features)) |
296 | ret |= ETHTOOL_F_COMPAT; | |
297 | ||
5455c699 MM |
298 | if (features[0].valid & ~dev->hw_features) { |
299 | features[0].valid &= dev->hw_features; | |
300 | ret |= ETHTOOL_F_UNSUPPORTED; | |
301 | } | |
302 | ||
303 | dev->wanted_features &= ~features[0].valid; | |
304 | dev->wanted_features |= features[0].valid & features[0].requested; | |
305 | netdev_update_features(dev); | |
306 | ||
307 | if ((dev->wanted_features ^ dev->features) & features[0].valid) | |
308 | ret |= ETHTOOL_F_WISH; | |
309 | ||
310 | return ret; | |
311 | } | |
312 | ||
313 | static const char netdev_features_strings[ETHTOOL_DEV_FEATURE_WORDS * 32][ETH_GSTRING_LEN] = { | |
314 | /* NETIF_F_SG */ "tx-scatter-gather", | |
315 | /* NETIF_F_IP_CSUM */ "tx-checksum-ipv4", | |
316 | /* NETIF_F_NO_CSUM */ "tx-checksum-unneeded", | |
317 | /* NETIF_F_HW_CSUM */ "tx-checksum-ip-generic", | |
318 | /* NETIF_F_IPV6_CSUM */ "tx_checksum-ipv6", | |
319 | /* NETIF_F_HIGHDMA */ "highdma", | |
320 | /* NETIF_F_FRAGLIST */ "tx-scatter-gather-fraglist", | |
321 | /* NETIF_F_HW_VLAN_TX */ "tx-vlan-hw-insert", | |
322 | ||
323 | /* NETIF_F_HW_VLAN_RX */ "rx-vlan-hw-parse", | |
324 | /* NETIF_F_HW_VLAN_FILTER */ "rx-vlan-filter", | |
325 | /* NETIF_F_VLAN_CHALLENGED */ "vlan-challenged", | |
326 | /* NETIF_F_GSO */ "tx-generic-segmentation", | |
327 | /* NETIF_F_LLTX */ "tx-lockless", | |
328 | /* NETIF_F_NETNS_LOCAL */ "netns-local", | |
329 | /* NETIF_F_GRO */ "rx-gro", | |
330 | /* NETIF_F_LRO */ "rx-lro", | |
331 | ||
332 | /* NETIF_F_TSO */ "tx-tcp-segmentation", | |
333 | /* NETIF_F_UFO */ "tx-udp-fragmentation", | |
334 | /* NETIF_F_GSO_ROBUST */ "tx-gso-robust", | |
335 | /* NETIF_F_TSO_ECN */ "tx-tcp-ecn-segmentation", | |
336 | /* NETIF_F_TSO6 */ "tx-tcp6-segmentation", | |
337 | /* NETIF_F_FSO */ "tx-fcoe-segmentation", | |
338 | "", | |
339 | "", | |
340 | ||
341 | /* NETIF_F_FCOE_CRC */ "tx-checksum-fcoe-crc", | |
342 | /* NETIF_F_SCTP_CSUM */ "tx-checksum-sctp", | |
343 | /* NETIF_F_FCOE_MTU */ "fcoe-mtu", | |
344 | /* NETIF_F_NTUPLE */ "rx-ntuple-filter", | |
345 | /* NETIF_F_RXHASH */ "rx-hashing", | |
e83d360d | 346 | /* NETIF_F_RXCSUM */ "rx-checksum", |
5455c699 MM |
347 | "", |
348 | "", | |
349 | }; | |
350 | ||
340ae165 MM |
351 | static int __ethtool_get_sset_count(struct net_device *dev, int sset) |
352 | { | |
353 | const struct ethtool_ops *ops = dev->ethtool_ops; | |
354 | ||
5455c699 MM |
355 | if (sset == ETH_SS_FEATURES) |
356 | return ARRAY_SIZE(netdev_features_strings); | |
357 | ||
340ae165 MM |
358 | if (ops && ops->get_sset_count && ops->get_strings) |
359 | return ops->get_sset_count(dev, sset); | |
360 | else | |
361 | return -EOPNOTSUPP; | |
362 | } | |
363 | ||
364 | static void __ethtool_get_strings(struct net_device *dev, | |
365 | u32 stringset, u8 *data) | |
366 | { | |
367 | const struct ethtool_ops *ops = dev->ethtool_ops; | |
368 | ||
5455c699 MM |
369 | if (stringset == ETH_SS_FEATURES) |
370 | memcpy(data, netdev_features_strings, | |
371 | sizeof(netdev_features_strings)); | |
372 | else | |
373 | /* ops->get_strings is valid because checked earlier */ | |
374 | ops->get_strings(dev, stringset, data); | |
340ae165 MM |
375 | } |
376 | ||
0a417704 MM |
377 | static u32 ethtool_get_feature_mask(u32 eth_cmd) |
378 | { | |
379 | /* feature masks of legacy discrete ethtool ops */ | |
380 | ||
381 | switch (eth_cmd) { | |
382 | case ETHTOOL_GTXCSUM: | |
383 | case ETHTOOL_STXCSUM: | |
384 | return NETIF_F_ALL_CSUM | NETIF_F_SCTP_CSUM; | |
e83d360d MM |
385 | case ETHTOOL_GRXCSUM: |
386 | case ETHTOOL_SRXCSUM: | |
387 | return NETIF_F_RXCSUM; | |
0a417704 MM |
388 | case ETHTOOL_GSG: |
389 | case ETHTOOL_SSG: | |
390 | return NETIF_F_SG; | |
391 | case ETHTOOL_GTSO: | |
392 | case ETHTOOL_STSO: | |
393 | return NETIF_F_ALL_TSO; | |
394 | case ETHTOOL_GUFO: | |
395 | case ETHTOOL_SUFO: | |
396 | return NETIF_F_UFO; | |
397 | case ETHTOOL_GGSO: | |
398 | case ETHTOOL_SGSO: | |
399 | return NETIF_F_GSO; | |
400 | case ETHTOOL_GGRO: | |
401 | case ETHTOOL_SGRO: | |
402 | return NETIF_F_GRO; | |
403 | default: | |
404 | BUG(); | |
405 | } | |
406 | } | |
407 | ||
408 | static void *__ethtool_get_one_feature_actor(struct net_device *dev, u32 ethcmd) | |
409 | { | |
410 | const struct ethtool_ops *ops = dev->ethtool_ops; | |
411 | ||
412 | if (!ops) | |
413 | return NULL; | |
414 | ||
415 | switch (ethcmd) { | |
416 | case ETHTOOL_GTXCSUM: | |
417 | return ops->get_tx_csum; | |
e83d360d MM |
418 | case ETHTOOL_GRXCSUM: |
419 | return ops->get_rx_csum; | |
0a417704 MM |
420 | case ETHTOOL_SSG: |
421 | return ops->get_sg; | |
422 | case ETHTOOL_STSO: | |
423 | return ops->get_tso; | |
424 | case ETHTOOL_SUFO: | |
425 | return ops->get_ufo; | |
426 | default: | |
427 | return NULL; | |
428 | } | |
429 | } | |
430 | ||
e83d360d MM |
431 | static u32 __ethtool_get_rx_csum_oldbug(struct net_device *dev) |
432 | { | |
433 | return !!(dev->features & NETIF_F_ALL_CSUM); | |
434 | } | |
435 | ||
0a417704 MM |
436 | static int ethtool_get_one_feature(struct net_device *dev, |
437 | char __user *useraddr, u32 ethcmd) | |
438 | { | |
86794881 | 439 | u32 mask = ethtool_get_feature_mask(ethcmd); |
0a417704 MM |
440 | struct ethtool_value edata = { |
441 | .cmd = ethcmd, | |
86794881 | 442 | .data = !!(dev->features & mask), |
0a417704 | 443 | }; |
0a417704 | 444 | |
86794881 MM |
445 | /* compatibility with discrete get_ ops */ |
446 | if (!(dev->hw_features & mask)) { | |
447 | u32 (*actor)(struct net_device *); | |
448 | ||
449 | actor = __ethtool_get_one_feature_actor(dev, ethcmd); | |
450 | ||
e83d360d MM |
451 | /* bug compatibility with old get_rx_csum */ |
452 | if (ethcmd == ETHTOOL_GRXCSUM && !actor) | |
453 | actor = __ethtool_get_rx_csum_oldbug; | |
454 | ||
86794881 MM |
455 | if (actor) |
456 | edata.data = actor(dev); | |
457 | } | |
0a417704 MM |
458 | |
459 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
460 | return -EFAULT; | |
461 | return 0; | |
462 | } | |
463 | ||
464 | static int __ethtool_set_tx_csum(struct net_device *dev, u32 data); | |
e83d360d | 465 | static int __ethtool_set_rx_csum(struct net_device *dev, u32 data); |
0a417704 MM |
466 | static int __ethtool_set_sg(struct net_device *dev, u32 data); |
467 | static int __ethtool_set_tso(struct net_device *dev, u32 data); | |
468 | static int __ethtool_set_ufo(struct net_device *dev, u32 data); | |
469 | ||
470 | static int ethtool_set_one_feature(struct net_device *dev, | |
471 | void __user *useraddr, u32 ethcmd) | |
472 | { | |
473 | struct ethtool_value edata; | |
474 | u32 mask; | |
475 | ||
476 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
477 | return -EFAULT; | |
478 | ||
86794881 MM |
479 | mask = ethtool_get_feature_mask(ethcmd); |
480 | mask &= dev->hw_features; | |
481 | if (mask) { | |
482 | if (edata.data) | |
483 | dev->wanted_features |= mask; | |
484 | else | |
485 | dev->wanted_features &= ~mask; | |
486 | ||
487 | netdev_update_features(dev); | |
488 | return 0; | |
489 | } | |
490 | ||
491 | /* Driver is not converted to ndo_fix_features or does not | |
492 | * support changing this offload. In the latter case it won't | |
493 | * have corresponding ethtool_ops field set. | |
494 | * | |
495 | * Following part is to be removed after all drivers advertise | |
496 | * their changeable features in netdev->hw_features and stop | |
497 | * using discrete offload setting ops. | |
498 | */ | |
499 | ||
0a417704 MM |
500 | switch (ethcmd) { |
501 | case ETHTOOL_STXCSUM: | |
502 | return __ethtool_set_tx_csum(dev, edata.data); | |
e83d360d MM |
503 | case ETHTOOL_SRXCSUM: |
504 | return __ethtool_set_rx_csum(dev, edata.data); | |
0a417704 MM |
505 | case ETHTOOL_SSG: |
506 | return __ethtool_set_sg(dev, edata.data); | |
507 | case ETHTOOL_STSO: | |
508 | return __ethtool_set_tso(dev, edata.data); | |
509 | case ETHTOOL_SUFO: | |
510 | return __ethtool_set_ufo(dev, edata.data); | |
0a417704 MM |
511 | default: |
512 | return -EOPNOTSUPP; | |
513 | } | |
514 | } | |
515 | ||
27660515 | 516 | int __ethtool_set_flags(struct net_device *dev, u32 data) |
da8ac86c MM |
517 | { |
518 | u32 changed; | |
519 | ||
520 | if (data & ~flags_dup_features) | |
521 | return -EINVAL; | |
522 | ||
523 | /* legacy set_flags() op */ | |
524 | if (dev->ethtool_ops->set_flags) { | |
525 | if (unlikely(dev->hw_features & flags_dup_features)) | |
526 | netdev_warn(dev, | |
527 | "driver BUG: mixed hw_features and set_flags()\n"); | |
528 | return dev->ethtool_ops->set_flags(dev, data); | |
529 | } | |
530 | ||
531 | /* allow changing only bits set in hw_features */ | |
532 | changed = (data ^ dev->wanted_features) & flags_dup_features; | |
533 | if (changed & ~dev->hw_features) | |
534 | return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP; | |
535 | ||
536 | dev->wanted_features = | |
537 | (dev->wanted_features & ~changed) | data; | |
538 | ||
539 | netdev_update_features(dev); | |
540 | ||
541 | return 0; | |
542 | } | |
543 | ||
1da177e4 LT |
544 | static int ethtool_get_settings(struct net_device *dev, void __user *useraddr) |
545 | { | |
8e557421 | 546 | struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET }; |
1da177e4 LT |
547 | int err; |
548 | ||
549 | if (!dev->ethtool_ops->get_settings) | |
550 | return -EOPNOTSUPP; | |
551 | ||
552 | err = dev->ethtool_ops->get_settings(dev, &cmd); | |
553 | if (err < 0) | |
554 | return err; | |
555 | ||
556 | if (copy_to_user(useraddr, &cmd, sizeof(cmd))) | |
557 | return -EFAULT; | |
558 | return 0; | |
559 | } | |
560 | ||
561 | static int ethtool_set_settings(struct net_device *dev, void __user *useraddr) | |
562 | { | |
563 | struct ethtool_cmd cmd; | |
564 | ||
565 | if (!dev->ethtool_ops->set_settings) | |
566 | return -EOPNOTSUPP; | |
567 | ||
568 | if (copy_from_user(&cmd, useraddr, sizeof(cmd))) | |
569 | return -EFAULT; | |
570 | ||
571 | return dev->ethtool_ops->set_settings(dev, &cmd); | |
572 | } | |
573 | ||
97f8aefb | 574 | static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev, |
575 | void __user *useraddr) | |
1da177e4 LT |
576 | { |
577 | struct ethtool_drvinfo info; | |
76fd8593 | 578 | const struct ethtool_ops *ops = dev->ethtool_ops; |
1da177e4 | 579 | |
1da177e4 LT |
580 | memset(&info, 0, sizeof(info)); |
581 | info.cmd = ETHTOOL_GDRVINFO; | |
01414802 BH |
582 | if (ops && ops->get_drvinfo) { |
583 | ops->get_drvinfo(dev, &info); | |
584 | } else if (dev->dev.parent && dev->dev.parent->driver) { | |
585 | strlcpy(info.bus_info, dev_name(dev->dev.parent), | |
586 | sizeof(info.bus_info)); | |
587 | strlcpy(info.driver, dev->dev.parent->driver->name, | |
588 | sizeof(info.driver)); | |
589 | } else { | |
590 | return -EOPNOTSUPP; | |
591 | } | |
1da177e4 | 592 | |
723b2f57 JG |
593 | /* |
594 | * this method of obtaining string set info is deprecated; | |
d17792eb | 595 | * Use ETHTOOL_GSSET_INFO instead. |
723b2f57 | 596 | */ |
01414802 | 597 | if (ops && ops->get_sset_count) { |
ff03d49f JG |
598 | int rc; |
599 | ||
600 | rc = ops->get_sset_count(dev, ETH_SS_TEST); | |
601 | if (rc >= 0) | |
602 | info.testinfo_len = rc; | |
603 | rc = ops->get_sset_count(dev, ETH_SS_STATS); | |
604 | if (rc >= 0) | |
605 | info.n_stats = rc; | |
339bf024 JG |
606 | rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS); |
607 | if (rc >= 0) | |
608 | info.n_priv_flags = rc; | |
ff03d49f | 609 | } |
01414802 | 610 | if (ops && ops->get_regs_len) |
1da177e4 | 611 | info.regdump_len = ops->get_regs_len(dev); |
01414802 | 612 | if (ops && ops->get_eeprom_len) |
1da177e4 LT |
613 | info.eedump_len = ops->get_eeprom_len(dev); |
614 | ||
615 | if (copy_to_user(useraddr, &info, sizeof(info))) | |
616 | return -EFAULT; | |
617 | return 0; | |
618 | } | |
619 | ||
f5c445ed | 620 | static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev, |
97f8aefb | 621 | void __user *useraddr) |
723b2f57 JG |
622 | { |
623 | struct ethtool_sset_info info; | |
723b2f57 JG |
624 | u64 sset_mask; |
625 | int i, idx = 0, n_bits = 0, ret, rc; | |
626 | u32 *info_buf = NULL; | |
627 | ||
723b2f57 JG |
628 | if (copy_from_user(&info, useraddr, sizeof(info))) |
629 | return -EFAULT; | |
630 | ||
631 | /* store copy of mask, because we zero struct later on */ | |
632 | sset_mask = info.sset_mask; | |
633 | if (!sset_mask) | |
634 | return 0; | |
635 | ||
636 | /* calculate size of return buffer */ | |
d17792eb | 637 | n_bits = hweight64(sset_mask); |
723b2f57 JG |
638 | |
639 | memset(&info, 0, sizeof(info)); | |
640 | info.cmd = ETHTOOL_GSSET_INFO; | |
641 | ||
642 | info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER); | |
643 | if (!info_buf) | |
644 | return -ENOMEM; | |
645 | ||
646 | /* | |
647 | * fill return buffer based on input bitmask and successful | |
648 | * get_sset_count return | |
649 | */ | |
650 | for (i = 0; i < 64; i++) { | |
651 | if (!(sset_mask & (1ULL << i))) | |
652 | continue; | |
653 | ||
340ae165 | 654 | rc = __ethtool_get_sset_count(dev, i); |
723b2f57 JG |
655 | if (rc >= 0) { |
656 | info.sset_mask |= (1ULL << i); | |
657 | info_buf[idx++] = rc; | |
658 | } | |
659 | } | |
660 | ||
661 | ret = -EFAULT; | |
662 | if (copy_to_user(useraddr, &info, sizeof(info))) | |
663 | goto out; | |
664 | ||
665 | useraddr += offsetof(struct ethtool_sset_info, data); | |
666 | if (copy_to_user(useraddr, info_buf, idx * sizeof(u32))) | |
667 | goto out; | |
668 | ||
669 | ret = 0; | |
670 | ||
671 | out: | |
672 | kfree(info_buf); | |
673 | return ret; | |
674 | } | |
675 | ||
97f8aefb | 676 | static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev, |
bf988435 | 677 | u32 cmd, void __user *useraddr) |
0853ad66 | 678 | { |
bf988435 BH |
679 | struct ethtool_rxnfc info; |
680 | size_t info_size = sizeof(info); | |
0853ad66 | 681 | |
59089d8d | 682 | if (!dev->ethtool_ops->set_rxnfc) |
0853ad66 SB |
683 | return -EOPNOTSUPP; |
684 | ||
bf988435 BH |
685 | /* struct ethtool_rxnfc was originally defined for |
686 | * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data | |
687 | * members. User-space might still be using that | |
688 | * definition. */ | |
689 | if (cmd == ETHTOOL_SRXFH) | |
690 | info_size = (offsetof(struct ethtool_rxnfc, data) + | |
691 | sizeof(info.data)); | |
692 | ||
693 | if (copy_from_user(&info, useraddr, info_size)) | |
0853ad66 SB |
694 | return -EFAULT; |
695 | ||
bf988435 | 696 | return dev->ethtool_ops->set_rxnfc(dev, &info); |
0853ad66 SB |
697 | } |
698 | ||
97f8aefb | 699 | static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev, |
bf988435 | 700 | u32 cmd, void __user *useraddr) |
0853ad66 SB |
701 | { |
702 | struct ethtool_rxnfc info; | |
bf988435 | 703 | size_t info_size = sizeof(info); |
59089d8d SB |
704 | const struct ethtool_ops *ops = dev->ethtool_ops; |
705 | int ret; | |
706 | void *rule_buf = NULL; | |
0853ad66 | 707 | |
59089d8d | 708 | if (!ops->get_rxnfc) |
0853ad66 SB |
709 | return -EOPNOTSUPP; |
710 | ||
bf988435 BH |
711 | /* struct ethtool_rxnfc was originally defined for |
712 | * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data | |
713 | * members. User-space might still be using that | |
714 | * definition. */ | |
715 | if (cmd == ETHTOOL_GRXFH) | |
716 | info_size = (offsetof(struct ethtool_rxnfc, data) + | |
717 | sizeof(info.data)); | |
718 | ||
719 | if (copy_from_user(&info, useraddr, info_size)) | |
0853ad66 SB |
720 | return -EFAULT; |
721 | ||
59089d8d SB |
722 | if (info.cmd == ETHTOOL_GRXCLSRLALL) { |
723 | if (info.rule_cnt > 0) { | |
db048b69 | 724 | if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32)) |
ae6df5f9 | 725 | rule_buf = kzalloc(info.rule_cnt * sizeof(u32), |
db048b69 | 726 | GFP_USER); |
59089d8d SB |
727 | if (!rule_buf) |
728 | return -ENOMEM; | |
729 | } | |
730 | } | |
0853ad66 | 731 | |
59089d8d SB |
732 | ret = ops->get_rxnfc(dev, &info, rule_buf); |
733 | if (ret < 0) | |
734 | goto err_out; | |
735 | ||
736 | ret = -EFAULT; | |
bf988435 | 737 | if (copy_to_user(useraddr, &info, info_size)) |
59089d8d SB |
738 | goto err_out; |
739 | ||
740 | if (rule_buf) { | |
741 | useraddr += offsetof(struct ethtool_rxnfc, rule_locs); | |
742 | if (copy_to_user(useraddr, rule_buf, | |
743 | info.rule_cnt * sizeof(u32))) | |
744 | goto err_out; | |
745 | } | |
746 | ret = 0; | |
747 | ||
748 | err_out: | |
c9caceca | 749 | kfree(rule_buf); |
59089d8d SB |
750 | |
751 | return ret; | |
0853ad66 SB |
752 | } |
753 | ||
a5b6ee29 BH |
754 | static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev, |
755 | void __user *useraddr) | |
756 | { | |
757 | struct ethtool_rxfh_indir *indir; | |
758 | u32 table_size; | |
759 | size_t full_size; | |
760 | int ret; | |
761 | ||
762 | if (!dev->ethtool_ops->get_rxfh_indir) | |
763 | return -EOPNOTSUPP; | |
764 | ||
765 | if (copy_from_user(&table_size, | |
766 | useraddr + offsetof(struct ethtool_rxfh_indir, size), | |
767 | sizeof(table_size))) | |
768 | return -EFAULT; | |
769 | ||
770 | if (table_size > | |
771 | (KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index)) | |
772 | return -ENOMEM; | |
773 | full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size; | |
b00916b1 | 774 | indir = kzalloc(full_size, GFP_USER); |
a5b6ee29 BH |
775 | if (!indir) |
776 | return -ENOMEM; | |
777 | ||
778 | indir->cmd = ETHTOOL_GRXFHINDIR; | |
779 | indir->size = table_size; | |
780 | ret = dev->ethtool_ops->get_rxfh_indir(dev, indir); | |
781 | if (ret) | |
782 | goto out; | |
783 | ||
784 | if (copy_to_user(useraddr, indir, full_size)) | |
785 | ret = -EFAULT; | |
786 | ||
787 | out: | |
788 | kfree(indir); | |
789 | return ret; | |
790 | } | |
791 | ||
792 | static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev, | |
793 | void __user *useraddr) | |
794 | { | |
795 | struct ethtool_rxfh_indir *indir; | |
796 | u32 table_size; | |
797 | size_t full_size; | |
798 | int ret; | |
799 | ||
800 | if (!dev->ethtool_ops->set_rxfh_indir) | |
801 | return -EOPNOTSUPP; | |
802 | ||
803 | if (copy_from_user(&table_size, | |
804 | useraddr + offsetof(struct ethtool_rxfh_indir, size), | |
805 | sizeof(table_size))) | |
806 | return -EFAULT; | |
807 | ||
808 | if (table_size > | |
809 | (KMALLOC_MAX_SIZE - sizeof(*indir)) / sizeof(*indir->ring_index)) | |
810 | return -ENOMEM; | |
811 | full_size = sizeof(*indir) + sizeof(*indir->ring_index) * table_size; | |
812 | indir = kmalloc(full_size, GFP_USER); | |
813 | if (!indir) | |
814 | return -ENOMEM; | |
815 | ||
816 | if (copy_from_user(indir, useraddr, full_size)) { | |
817 | ret = -EFAULT; | |
818 | goto out; | |
819 | } | |
820 | ||
821 | ret = dev->ethtool_ops->set_rxfh_indir(dev, indir); | |
822 | ||
823 | out: | |
824 | kfree(indir); | |
825 | return ret; | |
826 | } | |
827 | ||
e8589118 | 828 | static void __rx_ntuple_filter_add(struct ethtool_rx_ntuple_list *list, |
97f8aefb | 829 | struct ethtool_rx_ntuple_flow_spec *spec, |
830 | struct ethtool_rx_ntuple_flow_spec_container *fsc) | |
15682bc4 | 831 | { |
15682bc4 PWJ |
832 | |
833 | /* don't add filters forever */ | |
e8589118 PW |
834 | if (list->count >= ETHTOOL_MAX_NTUPLE_LIST_ENTRY) { |
835 | /* free the container */ | |
836 | kfree(fsc); | |
837 | return; | |
838 | } | |
15682bc4 PWJ |
839 | |
840 | /* Copy the whole filter over */ | |
841 | fsc->fs.flow_type = spec->flow_type; | |
842 | memcpy(&fsc->fs.h_u, &spec->h_u, sizeof(spec->h_u)); | |
843 | memcpy(&fsc->fs.m_u, &spec->m_u, sizeof(spec->m_u)); | |
844 | ||
845 | fsc->fs.vlan_tag = spec->vlan_tag; | |
846 | fsc->fs.vlan_tag_mask = spec->vlan_tag_mask; | |
847 | fsc->fs.data = spec->data; | |
848 | fsc->fs.data_mask = spec->data_mask; | |
849 | fsc->fs.action = spec->action; | |
850 | ||
851 | /* add to the list */ | |
852 | list_add_tail_rcu(&fsc->list, &list->list); | |
853 | list->count++; | |
15682bc4 PWJ |
854 | } |
855 | ||
be2902da BH |
856 | /* |
857 | * ethtool does not (or did not) set masks for flow parameters that are | |
858 | * not specified, so if both value and mask are 0 then this must be | |
859 | * treated as equivalent to a mask with all bits set. Implement that | |
860 | * here rather than in drivers. | |
861 | */ | |
862 | static void rx_ntuple_fix_masks(struct ethtool_rx_ntuple_flow_spec *fs) | |
863 | { | |
864 | struct ethtool_tcpip4_spec *entry = &fs->h_u.tcp_ip4_spec; | |
865 | struct ethtool_tcpip4_spec *mask = &fs->m_u.tcp_ip4_spec; | |
866 | ||
867 | if (fs->flow_type != TCP_V4_FLOW && | |
868 | fs->flow_type != UDP_V4_FLOW && | |
869 | fs->flow_type != SCTP_V4_FLOW) | |
870 | return; | |
871 | ||
872 | if (!(entry->ip4src | mask->ip4src)) | |
873 | mask->ip4src = htonl(0xffffffff); | |
874 | if (!(entry->ip4dst | mask->ip4dst)) | |
875 | mask->ip4dst = htonl(0xffffffff); | |
876 | if (!(entry->psrc | mask->psrc)) | |
877 | mask->psrc = htons(0xffff); | |
878 | if (!(entry->pdst | mask->pdst)) | |
879 | mask->pdst = htons(0xffff); | |
880 | if (!(entry->tos | mask->tos)) | |
881 | mask->tos = 0xff; | |
882 | if (!(fs->vlan_tag | fs->vlan_tag_mask)) | |
883 | fs->vlan_tag_mask = 0xffff; | |
884 | if (!(fs->data | fs->data_mask)) | |
885 | fs->data_mask = 0xffffffffffffffffULL; | |
886 | } | |
887 | ||
97f8aefb | 888 | static noinline_for_stack int ethtool_set_rx_ntuple(struct net_device *dev, |
889 | void __user *useraddr) | |
15682bc4 PWJ |
890 | { |
891 | struct ethtool_rx_ntuple cmd; | |
892 | const struct ethtool_ops *ops = dev->ethtool_ops; | |
e8589118 | 893 | struct ethtool_rx_ntuple_flow_spec_container *fsc = NULL; |
15682bc4 PWJ |
894 | int ret; |
895 | ||
15682bc4 PWJ |
896 | if (!(dev->features & NETIF_F_NTUPLE)) |
897 | return -EINVAL; | |
898 | ||
899 | if (copy_from_user(&cmd, useraddr, sizeof(cmd))) | |
900 | return -EFAULT; | |
901 | ||
be2902da BH |
902 | rx_ntuple_fix_masks(&cmd.fs); |
903 | ||
15682bc4 PWJ |
904 | /* |
905 | * Cache filter in dev struct for GET operation only if | |
906 | * the underlying driver doesn't have its own GET operation, and | |
e8589118 PW |
907 | * only if the filter was added successfully. First make sure we |
908 | * can allocate the filter, then continue if successful. | |
15682bc4 | 909 | */ |
e8589118 PW |
910 | if (!ops->get_rx_ntuple) { |
911 | fsc = kmalloc(sizeof(*fsc), GFP_ATOMIC); | |
912 | if (!fsc) | |
15682bc4 | 913 | return -ENOMEM; |
e8589118 PW |
914 | } |
915 | ||
916 | ret = ops->set_rx_ntuple(dev, &cmd); | |
917 | if (ret) { | |
918 | kfree(fsc); | |
919 | return ret; | |
920 | } | |
921 | ||
922 | if (!ops->get_rx_ntuple) | |
923 | __rx_ntuple_filter_add(&dev->ethtool_ntuple_list, &cmd.fs, fsc); | |
15682bc4 PWJ |
924 | |
925 | return ret; | |
926 | } | |
927 | ||
928 | static int ethtool_get_rx_ntuple(struct net_device *dev, void __user *useraddr) | |
929 | { | |
930 | struct ethtool_gstrings gstrings; | |
931 | const struct ethtool_ops *ops = dev->ethtool_ops; | |
932 | struct ethtool_rx_ntuple_flow_spec_container *fsc; | |
933 | u8 *data; | |
934 | char *p; | |
935 | int ret, i, num_strings = 0; | |
936 | ||
937 | if (!ops->get_sset_count) | |
938 | return -EOPNOTSUPP; | |
939 | ||
940 | if (copy_from_user(&gstrings, useraddr, sizeof(gstrings))) | |
941 | return -EFAULT; | |
942 | ||
943 | ret = ops->get_sset_count(dev, gstrings.string_set); | |
944 | if (ret < 0) | |
945 | return ret; | |
946 | ||
947 | gstrings.len = ret; | |
948 | ||
b00916b1 | 949 | data = kzalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER); |
15682bc4 PWJ |
950 | if (!data) |
951 | return -ENOMEM; | |
952 | ||
953 | if (ops->get_rx_ntuple) { | |
954 | /* driver-specific filter grab */ | |
955 | ret = ops->get_rx_ntuple(dev, gstrings.string_set, data); | |
956 | goto copy; | |
957 | } | |
958 | ||
959 | /* default ethtool filter grab */ | |
960 | i = 0; | |
961 | p = (char *)data; | |
962 | list_for_each_entry(fsc, &dev->ethtool_ntuple_list.list, list) { | |
963 | sprintf(p, "Filter %d:\n", i); | |
964 | p += ETH_GSTRING_LEN; | |
965 | num_strings++; | |
966 | ||
967 | switch (fsc->fs.flow_type) { | |
968 | case TCP_V4_FLOW: | |
969 | sprintf(p, "\tFlow Type: TCP\n"); | |
970 | p += ETH_GSTRING_LEN; | |
971 | num_strings++; | |
972 | break; | |
973 | case UDP_V4_FLOW: | |
974 | sprintf(p, "\tFlow Type: UDP\n"); | |
975 | p += ETH_GSTRING_LEN; | |
976 | num_strings++; | |
977 | break; | |
978 | case SCTP_V4_FLOW: | |
979 | sprintf(p, "\tFlow Type: SCTP\n"); | |
980 | p += ETH_GSTRING_LEN; | |
981 | num_strings++; | |
982 | break; | |
983 | case AH_ESP_V4_FLOW: | |
984 | sprintf(p, "\tFlow Type: AH ESP\n"); | |
985 | p += ETH_GSTRING_LEN; | |
986 | num_strings++; | |
987 | break; | |
988 | case ESP_V4_FLOW: | |
989 | sprintf(p, "\tFlow Type: ESP\n"); | |
990 | p += ETH_GSTRING_LEN; | |
991 | num_strings++; | |
992 | break; | |
993 | case IP_USER_FLOW: | |
994 | sprintf(p, "\tFlow Type: Raw IP\n"); | |
995 | p += ETH_GSTRING_LEN; | |
996 | num_strings++; | |
997 | break; | |
998 | case IPV4_FLOW: | |
999 | sprintf(p, "\tFlow Type: IPv4\n"); | |
1000 | p += ETH_GSTRING_LEN; | |
1001 | num_strings++; | |
1002 | break; | |
1003 | default: | |
1004 | sprintf(p, "\tFlow Type: Unknown\n"); | |
1005 | p += ETH_GSTRING_LEN; | |
1006 | num_strings++; | |
1007 | goto unknown_filter; | |
ccbd6a5a | 1008 | } |
15682bc4 PWJ |
1009 | |
1010 | /* now the rest of the filters */ | |
1011 | switch (fsc->fs.flow_type) { | |
1012 | case TCP_V4_FLOW: | |
1013 | case UDP_V4_FLOW: | |
1014 | case SCTP_V4_FLOW: | |
1015 | sprintf(p, "\tSrc IP addr: 0x%x\n", | |
97f8aefb | 1016 | fsc->fs.h_u.tcp_ip4_spec.ip4src); |
15682bc4 PWJ |
1017 | p += ETH_GSTRING_LEN; |
1018 | num_strings++; | |
1019 | sprintf(p, "\tSrc IP mask: 0x%x\n", | |
97f8aefb | 1020 | fsc->fs.m_u.tcp_ip4_spec.ip4src); |
15682bc4 PWJ |
1021 | p += ETH_GSTRING_LEN; |
1022 | num_strings++; | |
1023 | sprintf(p, "\tDest IP addr: 0x%x\n", | |
97f8aefb | 1024 | fsc->fs.h_u.tcp_ip4_spec.ip4dst); |
15682bc4 PWJ |
1025 | p += ETH_GSTRING_LEN; |
1026 | num_strings++; | |
1027 | sprintf(p, "\tDest IP mask: 0x%x\n", | |
97f8aefb | 1028 | fsc->fs.m_u.tcp_ip4_spec.ip4dst); |
15682bc4 PWJ |
1029 | p += ETH_GSTRING_LEN; |
1030 | num_strings++; | |
1031 | sprintf(p, "\tSrc Port: %d, mask: 0x%x\n", | |
97f8aefb | 1032 | fsc->fs.h_u.tcp_ip4_spec.psrc, |
1033 | fsc->fs.m_u.tcp_ip4_spec.psrc); | |
15682bc4 PWJ |
1034 | p += ETH_GSTRING_LEN; |
1035 | num_strings++; | |
1036 | sprintf(p, "\tDest Port: %d, mask: 0x%x\n", | |
97f8aefb | 1037 | fsc->fs.h_u.tcp_ip4_spec.pdst, |
1038 | fsc->fs.m_u.tcp_ip4_spec.pdst); | |
15682bc4 PWJ |
1039 | p += ETH_GSTRING_LEN; |
1040 | num_strings++; | |
1041 | sprintf(p, "\tTOS: %d, mask: 0x%x\n", | |
97f8aefb | 1042 | fsc->fs.h_u.tcp_ip4_spec.tos, |
1043 | fsc->fs.m_u.tcp_ip4_spec.tos); | |
15682bc4 PWJ |
1044 | p += ETH_GSTRING_LEN; |
1045 | num_strings++; | |
1046 | break; | |
1047 | case AH_ESP_V4_FLOW: | |
1048 | case ESP_V4_FLOW: | |
1049 | sprintf(p, "\tSrc IP addr: 0x%x\n", | |
97f8aefb | 1050 | fsc->fs.h_u.ah_ip4_spec.ip4src); |
15682bc4 PWJ |
1051 | p += ETH_GSTRING_LEN; |
1052 | num_strings++; | |
1053 | sprintf(p, "\tSrc IP mask: 0x%x\n", | |
97f8aefb | 1054 | fsc->fs.m_u.ah_ip4_spec.ip4src); |
15682bc4 PWJ |
1055 | p += ETH_GSTRING_LEN; |
1056 | num_strings++; | |
1057 | sprintf(p, "\tDest IP addr: 0x%x\n", | |
97f8aefb | 1058 | fsc->fs.h_u.ah_ip4_spec.ip4dst); |
15682bc4 PWJ |
1059 | p += ETH_GSTRING_LEN; |
1060 | num_strings++; | |
1061 | sprintf(p, "\tDest IP mask: 0x%x\n", | |
97f8aefb | 1062 | fsc->fs.m_u.ah_ip4_spec.ip4dst); |
15682bc4 PWJ |
1063 | p += ETH_GSTRING_LEN; |
1064 | num_strings++; | |
1065 | sprintf(p, "\tSPI: %d, mask: 0x%x\n", | |
97f8aefb | 1066 | fsc->fs.h_u.ah_ip4_spec.spi, |
1067 | fsc->fs.m_u.ah_ip4_spec.spi); | |
15682bc4 PWJ |
1068 | p += ETH_GSTRING_LEN; |
1069 | num_strings++; | |
1070 | sprintf(p, "\tTOS: %d, mask: 0x%x\n", | |
97f8aefb | 1071 | fsc->fs.h_u.ah_ip4_spec.tos, |
1072 | fsc->fs.m_u.ah_ip4_spec.tos); | |
15682bc4 PWJ |
1073 | p += ETH_GSTRING_LEN; |
1074 | num_strings++; | |
1075 | break; | |
1076 | case IP_USER_FLOW: | |
1077 | sprintf(p, "\tSrc IP addr: 0x%x\n", | |
e0de7c93 | 1078 | fsc->fs.h_u.usr_ip4_spec.ip4src); |
15682bc4 PWJ |
1079 | p += ETH_GSTRING_LEN; |
1080 | num_strings++; | |
1081 | sprintf(p, "\tSrc IP mask: 0x%x\n", | |
e0de7c93 | 1082 | fsc->fs.m_u.usr_ip4_spec.ip4src); |
15682bc4 PWJ |
1083 | p += ETH_GSTRING_LEN; |
1084 | num_strings++; | |
1085 | sprintf(p, "\tDest IP addr: 0x%x\n", | |
e0de7c93 | 1086 | fsc->fs.h_u.usr_ip4_spec.ip4dst); |
15682bc4 PWJ |
1087 | p += ETH_GSTRING_LEN; |
1088 | num_strings++; | |
1089 | sprintf(p, "\tDest IP mask: 0x%x\n", | |
e0de7c93 | 1090 | fsc->fs.m_u.usr_ip4_spec.ip4dst); |
15682bc4 PWJ |
1091 | p += ETH_GSTRING_LEN; |
1092 | num_strings++; | |
1093 | break; | |
1094 | case IPV4_FLOW: | |
1095 | sprintf(p, "\tSrc IP addr: 0x%x\n", | |
97f8aefb | 1096 | fsc->fs.h_u.usr_ip4_spec.ip4src); |
15682bc4 PWJ |
1097 | p += ETH_GSTRING_LEN; |
1098 | num_strings++; | |
1099 | sprintf(p, "\tSrc IP mask: 0x%x\n", | |
97f8aefb | 1100 | fsc->fs.m_u.usr_ip4_spec.ip4src); |
15682bc4 PWJ |
1101 | p += ETH_GSTRING_LEN; |
1102 | num_strings++; | |
1103 | sprintf(p, "\tDest IP addr: 0x%x\n", | |
97f8aefb | 1104 | fsc->fs.h_u.usr_ip4_spec.ip4dst); |
15682bc4 PWJ |
1105 | p += ETH_GSTRING_LEN; |
1106 | num_strings++; | |
1107 | sprintf(p, "\tDest IP mask: 0x%x\n", | |
97f8aefb | 1108 | fsc->fs.m_u.usr_ip4_spec.ip4dst); |
15682bc4 PWJ |
1109 | p += ETH_GSTRING_LEN; |
1110 | num_strings++; | |
1111 | sprintf(p, "\tL4 bytes: 0x%x, mask: 0x%x\n", | |
97f8aefb | 1112 | fsc->fs.h_u.usr_ip4_spec.l4_4_bytes, |
1113 | fsc->fs.m_u.usr_ip4_spec.l4_4_bytes); | |
15682bc4 PWJ |
1114 | p += ETH_GSTRING_LEN; |
1115 | num_strings++; | |
1116 | sprintf(p, "\tTOS: %d, mask: 0x%x\n", | |
97f8aefb | 1117 | fsc->fs.h_u.usr_ip4_spec.tos, |
1118 | fsc->fs.m_u.usr_ip4_spec.tos); | |
15682bc4 PWJ |
1119 | p += ETH_GSTRING_LEN; |
1120 | num_strings++; | |
1121 | sprintf(p, "\tIP Version: %d, mask: 0x%x\n", | |
97f8aefb | 1122 | fsc->fs.h_u.usr_ip4_spec.ip_ver, |
1123 | fsc->fs.m_u.usr_ip4_spec.ip_ver); | |
15682bc4 PWJ |
1124 | p += ETH_GSTRING_LEN; |
1125 | num_strings++; | |
1126 | sprintf(p, "\tProtocol: %d, mask: 0x%x\n", | |
97f8aefb | 1127 | fsc->fs.h_u.usr_ip4_spec.proto, |
1128 | fsc->fs.m_u.usr_ip4_spec.proto); | |
15682bc4 PWJ |
1129 | p += ETH_GSTRING_LEN; |
1130 | num_strings++; | |
1131 | break; | |
ccbd6a5a | 1132 | } |
15682bc4 | 1133 | sprintf(p, "\tVLAN: %d, mask: 0x%x\n", |
97f8aefb | 1134 | fsc->fs.vlan_tag, fsc->fs.vlan_tag_mask); |
15682bc4 PWJ |
1135 | p += ETH_GSTRING_LEN; |
1136 | num_strings++; | |
1137 | sprintf(p, "\tUser-defined: 0x%Lx\n", fsc->fs.data); | |
1138 | p += ETH_GSTRING_LEN; | |
1139 | num_strings++; | |
1140 | sprintf(p, "\tUser-defined mask: 0x%Lx\n", fsc->fs.data_mask); | |
1141 | p += ETH_GSTRING_LEN; | |
1142 | num_strings++; | |
1143 | if (fsc->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) | |
1144 | sprintf(p, "\tAction: Drop\n"); | |
1145 | else | |
1146 | sprintf(p, "\tAction: Direct to queue %d\n", | |
97f8aefb | 1147 | fsc->fs.action); |
15682bc4 PWJ |
1148 | p += ETH_GSTRING_LEN; |
1149 | num_strings++; | |
1150 | unknown_filter: | |
1151 | i++; | |
1152 | } | |
1153 | copy: | |
1154 | /* indicate to userspace how many strings we actually have */ | |
1155 | gstrings.len = num_strings; | |
1156 | ret = -EFAULT; | |
1157 | if (copy_to_user(useraddr, &gstrings, sizeof(gstrings))) | |
1158 | goto out; | |
1159 | useraddr += sizeof(gstrings); | |
1160 | if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN)) | |
1161 | goto out; | |
1162 | ret = 0; | |
1163 | ||
1164 | out: | |
1165 | kfree(data); | |
1166 | return ret; | |
1167 | } | |
1168 | ||
1da177e4 LT |
1169 | static int ethtool_get_regs(struct net_device *dev, char __user *useraddr) |
1170 | { | |
1171 | struct ethtool_regs regs; | |
76fd8593 | 1172 | const struct ethtool_ops *ops = dev->ethtool_ops; |
1da177e4 LT |
1173 | void *regbuf; |
1174 | int reglen, ret; | |
1175 | ||
1176 | if (!ops->get_regs || !ops->get_regs_len) | |
1177 | return -EOPNOTSUPP; | |
1178 | ||
1179 | if (copy_from_user(®s, useraddr, sizeof(regs))) | |
1180 | return -EFAULT; | |
1181 | ||
1182 | reglen = ops->get_regs_len(dev); | |
1183 | if (regs.len > reglen) | |
1184 | regs.len = reglen; | |
1185 | ||
b7c7d01a | 1186 | regbuf = vzalloc(reglen); |
1da177e4 LT |
1187 | if (!regbuf) |
1188 | return -ENOMEM; | |
1189 | ||
1190 | ops->get_regs(dev, ®s, regbuf); | |
1191 | ||
1192 | ret = -EFAULT; | |
1193 | if (copy_to_user(useraddr, ®s, sizeof(regs))) | |
1194 | goto out; | |
1195 | useraddr += offsetof(struct ethtool_regs, data); | |
1196 | if (copy_to_user(useraddr, regbuf, regs.len)) | |
1197 | goto out; | |
1198 | ret = 0; | |
1199 | ||
1200 | out: | |
a77f5db3 | 1201 | vfree(regbuf); |
1da177e4 LT |
1202 | return ret; |
1203 | } | |
1204 | ||
d73d3a8c BH |
1205 | static int ethtool_reset(struct net_device *dev, char __user *useraddr) |
1206 | { | |
1207 | struct ethtool_value reset; | |
1208 | int ret; | |
1209 | ||
1210 | if (!dev->ethtool_ops->reset) | |
1211 | return -EOPNOTSUPP; | |
1212 | ||
1213 | if (copy_from_user(&reset, useraddr, sizeof(reset))) | |
1214 | return -EFAULT; | |
1215 | ||
1216 | ret = dev->ethtool_ops->reset(dev, &reset.data); | |
1217 | if (ret) | |
1218 | return ret; | |
1219 | ||
1220 | if (copy_to_user(useraddr, &reset, sizeof(reset))) | |
1221 | return -EFAULT; | |
1222 | return 0; | |
1223 | } | |
1224 | ||
1da177e4 LT |
1225 | static int ethtool_get_wol(struct net_device *dev, char __user *useraddr) |
1226 | { | |
8e557421 | 1227 | struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL }; |
1da177e4 LT |
1228 | |
1229 | if (!dev->ethtool_ops->get_wol) | |
1230 | return -EOPNOTSUPP; | |
1231 | ||
1232 | dev->ethtool_ops->get_wol(dev, &wol); | |
1233 | ||
1234 | if (copy_to_user(useraddr, &wol, sizeof(wol))) | |
1235 | return -EFAULT; | |
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | static int ethtool_set_wol(struct net_device *dev, char __user *useraddr) | |
1240 | { | |
1241 | struct ethtool_wolinfo wol; | |
1242 | ||
1243 | if (!dev->ethtool_ops->set_wol) | |
1244 | return -EOPNOTSUPP; | |
1245 | ||
1246 | if (copy_from_user(&wol, useraddr, sizeof(wol))) | |
1247 | return -EFAULT; | |
1248 | ||
1249 | return dev->ethtool_ops->set_wol(dev, &wol); | |
1250 | } | |
1251 | ||
1da177e4 LT |
1252 | static int ethtool_nway_reset(struct net_device *dev) |
1253 | { | |
1254 | if (!dev->ethtool_ops->nway_reset) | |
1255 | return -EOPNOTSUPP; | |
1256 | ||
1257 | return dev->ethtool_ops->nway_reset(dev); | |
1258 | } | |
1259 | ||
e596e6e4 BH |
1260 | static int ethtool_get_link(struct net_device *dev, char __user *useraddr) |
1261 | { | |
1262 | struct ethtool_value edata = { .cmd = ETHTOOL_GLINK }; | |
1263 | ||
1264 | if (!dev->ethtool_ops->get_link) | |
1265 | return -EOPNOTSUPP; | |
1266 | ||
1267 | edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev); | |
1268 | ||
1269 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
1270 | return -EFAULT; | |
1271 | return 0; | |
1272 | } | |
1273 | ||
1da177e4 LT |
1274 | static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr) |
1275 | { | |
1276 | struct ethtool_eeprom eeprom; | |
76fd8593 | 1277 | const struct ethtool_ops *ops = dev->ethtool_ops; |
b131dd5d MSB |
1278 | void __user *userbuf = useraddr + sizeof(eeprom); |
1279 | u32 bytes_remaining; | |
1da177e4 | 1280 | u8 *data; |
b131dd5d | 1281 | int ret = 0; |
1da177e4 LT |
1282 | |
1283 | if (!ops->get_eeprom || !ops->get_eeprom_len) | |
1284 | return -EOPNOTSUPP; | |
1285 | ||
1286 | if (copy_from_user(&eeprom, useraddr, sizeof(eeprom))) | |
1287 | return -EFAULT; | |
1288 | ||
1289 | /* Check for wrap and zero */ | |
1290 | if (eeprom.offset + eeprom.len <= eeprom.offset) | |
1291 | return -EINVAL; | |
1292 | ||
1293 | /* Check for exceeding total eeprom len */ | |
1294 | if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev)) | |
1295 | return -EINVAL; | |
1296 | ||
b131dd5d | 1297 | data = kmalloc(PAGE_SIZE, GFP_USER); |
1da177e4 LT |
1298 | if (!data) |
1299 | return -ENOMEM; | |
1300 | ||
b131dd5d MSB |
1301 | bytes_remaining = eeprom.len; |
1302 | while (bytes_remaining > 0) { | |
1303 | eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE); | |
1304 | ||
1305 | ret = ops->get_eeprom(dev, &eeprom, data); | |
1306 | if (ret) | |
1307 | break; | |
1308 | if (copy_to_user(userbuf, data, eeprom.len)) { | |
1309 | ret = -EFAULT; | |
1310 | break; | |
1311 | } | |
1312 | userbuf += eeprom.len; | |
1313 | eeprom.offset += eeprom.len; | |
1314 | bytes_remaining -= eeprom.len; | |
1315 | } | |
1da177e4 | 1316 | |
c5835df9 MSB |
1317 | eeprom.len = userbuf - (useraddr + sizeof(eeprom)); |
1318 | eeprom.offset -= eeprom.len; | |
1319 | if (copy_to_user(useraddr, &eeprom, sizeof(eeprom))) | |
1320 | ret = -EFAULT; | |
1321 | ||
1da177e4 LT |
1322 | kfree(data); |
1323 | return ret; | |
1324 | } | |
1325 | ||
1326 | static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr) | |
1327 | { | |
1328 | struct ethtool_eeprom eeprom; | |
76fd8593 | 1329 | const struct ethtool_ops *ops = dev->ethtool_ops; |
b131dd5d MSB |
1330 | void __user *userbuf = useraddr + sizeof(eeprom); |
1331 | u32 bytes_remaining; | |
1da177e4 | 1332 | u8 *data; |
b131dd5d | 1333 | int ret = 0; |
1da177e4 LT |
1334 | |
1335 | if (!ops->set_eeprom || !ops->get_eeprom_len) | |
1336 | return -EOPNOTSUPP; | |
1337 | ||
1338 | if (copy_from_user(&eeprom, useraddr, sizeof(eeprom))) | |
1339 | return -EFAULT; | |
1340 | ||
1341 | /* Check for wrap and zero */ | |
1342 | if (eeprom.offset + eeprom.len <= eeprom.offset) | |
1343 | return -EINVAL; | |
1344 | ||
1345 | /* Check for exceeding total eeprom len */ | |
1346 | if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev)) | |
1347 | return -EINVAL; | |
1348 | ||
b131dd5d | 1349 | data = kmalloc(PAGE_SIZE, GFP_USER); |
1da177e4 LT |
1350 | if (!data) |
1351 | return -ENOMEM; | |
1352 | ||
b131dd5d MSB |
1353 | bytes_remaining = eeprom.len; |
1354 | while (bytes_remaining > 0) { | |
1355 | eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE); | |
1356 | ||
1357 | if (copy_from_user(data, userbuf, eeprom.len)) { | |
1358 | ret = -EFAULT; | |
1359 | break; | |
1360 | } | |
1361 | ret = ops->set_eeprom(dev, &eeprom, data); | |
1362 | if (ret) | |
1363 | break; | |
1364 | userbuf += eeprom.len; | |
1365 | eeprom.offset += eeprom.len; | |
1366 | bytes_remaining -= eeprom.len; | |
1367 | } | |
1da177e4 | 1368 | |
1da177e4 LT |
1369 | kfree(data); |
1370 | return ret; | |
1371 | } | |
1372 | ||
97f8aefb | 1373 | static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev, |
1374 | void __user *useraddr) | |
1da177e4 | 1375 | { |
8e557421 | 1376 | struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE }; |
1da177e4 LT |
1377 | |
1378 | if (!dev->ethtool_ops->get_coalesce) | |
1379 | return -EOPNOTSUPP; | |
1380 | ||
1381 | dev->ethtool_ops->get_coalesce(dev, &coalesce); | |
1382 | ||
1383 | if (copy_to_user(useraddr, &coalesce, sizeof(coalesce))) | |
1384 | return -EFAULT; | |
1385 | return 0; | |
1386 | } | |
1387 | ||
97f8aefb | 1388 | static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev, |
1389 | void __user *useraddr) | |
1da177e4 LT |
1390 | { |
1391 | struct ethtool_coalesce coalesce; | |
1392 | ||
fa04ae5c | 1393 | if (!dev->ethtool_ops->set_coalesce) |
1da177e4 LT |
1394 | return -EOPNOTSUPP; |
1395 | ||
1396 | if (copy_from_user(&coalesce, useraddr, sizeof(coalesce))) | |
1397 | return -EFAULT; | |
1398 | ||
1399 | return dev->ethtool_ops->set_coalesce(dev, &coalesce); | |
1400 | } | |
1401 | ||
1402 | static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr) | |
1403 | { | |
8e557421 | 1404 | struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM }; |
1da177e4 LT |
1405 | |
1406 | if (!dev->ethtool_ops->get_ringparam) | |
1407 | return -EOPNOTSUPP; | |
1408 | ||
1409 | dev->ethtool_ops->get_ringparam(dev, &ringparam); | |
1410 | ||
1411 | if (copy_to_user(useraddr, &ringparam, sizeof(ringparam))) | |
1412 | return -EFAULT; | |
1413 | return 0; | |
1414 | } | |
1415 | ||
1416 | static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr) | |
1417 | { | |
1418 | struct ethtool_ringparam ringparam; | |
1419 | ||
1420 | if (!dev->ethtool_ops->set_ringparam) | |
1421 | return -EOPNOTSUPP; | |
1422 | ||
1423 | if (copy_from_user(&ringparam, useraddr, sizeof(ringparam))) | |
1424 | return -EFAULT; | |
1425 | ||
1426 | return dev->ethtool_ops->set_ringparam(dev, &ringparam); | |
1427 | } | |
1428 | ||
1429 | static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr) | |
1430 | { | |
1431 | struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM }; | |
1432 | ||
1433 | if (!dev->ethtool_ops->get_pauseparam) | |
1434 | return -EOPNOTSUPP; | |
1435 | ||
1436 | dev->ethtool_ops->get_pauseparam(dev, &pauseparam); | |
1437 | ||
1438 | if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam))) | |
1439 | return -EFAULT; | |
1440 | return 0; | |
1441 | } | |
1442 | ||
1443 | static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr) | |
1444 | { | |
1445 | struct ethtool_pauseparam pauseparam; | |
1446 | ||
e1b90c41 | 1447 | if (!dev->ethtool_ops->set_pauseparam) |
1da177e4 LT |
1448 | return -EOPNOTSUPP; |
1449 | ||
1450 | if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam))) | |
1451 | return -EFAULT; | |
1452 | ||
1453 | return dev->ethtool_ops->set_pauseparam(dev, &pauseparam); | |
1454 | } | |
1455 | ||
1da177e4 LT |
1456 | static int __ethtool_set_sg(struct net_device *dev, u32 data) |
1457 | { | |
1458 | int err; | |
1459 | ||
5e5069b4 RL |
1460 | if (!dev->ethtool_ops->set_sg) |
1461 | return -EOPNOTSUPP; | |
1462 | ||
0a417704 MM |
1463 | if (data && !(dev->features & NETIF_F_ALL_CSUM)) |
1464 | return -EINVAL; | |
1465 | ||
1da177e4 LT |
1466 | if (!data && dev->ethtool_ops->set_tso) { |
1467 | err = dev->ethtool_ops->set_tso(dev, 0); | |
1468 | if (err) | |
1469 | return err; | |
1470 | } | |
1471 | ||
e89e9cf5 AR |
1472 | if (!data && dev->ethtool_ops->set_ufo) { |
1473 | err = dev->ethtool_ops->set_ufo(dev, 0); | |
1474 | if (err) | |
1475 | return err; | |
1476 | } | |
1da177e4 LT |
1477 | return dev->ethtool_ops->set_sg(dev, data); |
1478 | } | |
1479 | ||
0a417704 | 1480 | static int __ethtool_set_tx_csum(struct net_device *dev, u32 data) |
1da177e4 | 1481 | { |
1da177e4 LT |
1482 | int err; |
1483 | ||
1484 | if (!dev->ethtool_ops->set_tx_csum) | |
1485 | return -EOPNOTSUPP; | |
1486 | ||
0a417704 | 1487 | if (!data && dev->ethtool_ops->set_sg) { |
1da177e4 LT |
1488 | err = __ethtool_set_sg(dev, 0); |
1489 | if (err) | |
1490 | return err; | |
1491 | } | |
1492 | ||
0a417704 | 1493 | return dev->ethtool_ops->set_tx_csum(dev, data); |
1da177e4 LT |
1494 | } |
1495 | ||
e83d360d | 1496 | static int __ethtool_set_rx_csum(struct net_device *dev, u32 data) |
b240a0e5 | 1497 | { |
b240a0e5 HX |
1498 | if (!dev->ethtool_ops->set_rx_csum) |
1499 | return -EOPNOTSUPP; | |
1500 | ||
e83d360d | 1501 | if (!data) |
b240a0e5 HX |
1502 | dev->features &= ~NETIF_F_GRO; |
1503 | ||
e83d360d | 1504 | return dev->ethtool_ops->set_rx_csum(dev, data); |
b240a0e5 HX |
1505 | } |
1506 | ||
0a417704 | 1507 | static int __ethtool_set_tso(struct net_device *dev, u32 data) |
1da177e4 | 1508 | { |
1da177e4 LT |
1509 | if (!dev->ethtool_ops->set_tso) |
1510 | return -EOPNOTSUPP; | |
1511 | ||
0a417704 | 1512 | if (data && !(dev->features & NETIF_F_SG)) |
1da177e4 LT |
1513 | return -EINVAL; |
1514 | ||
0a417704 | 1515 | return dev->ethtool_ops->set_tso(dev, data); |
1da177e4 LT |
1516 | } |
1517 | ||
0a417704 | 1518 | static int __ethtool_set_ufo(struct net_device *dev, u32 data) |
e89e9cf5 | 1519 | { |
e89e9cf5 AR |
1520 | if (!dev->ethtool_ops->set_ufo) |
1521 | return -EOPNOTSUPP; | |
0a417704 | 1522 | if (data && !(dev->features & NETIF_F_SG)) |
e89e9cf5 | 1523 | return -EINVAL; |
0a417704 | 1524 | if (data && !((dev->features & NETIF_F_GEN_CSUM) || |
79032644 MM |
1525 | (dev->features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)) |
1526 | == (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM))) | |
e89e9cf5 | 1527 | return -EINVAL; |
0a417704 | 1528 | return dev->ethtool_ops->set_ufo(dev, data); |
b240a0e5 HX |
1529 | } |
1530 | ||
1da177e4 LT |
1531 | static int ethtool_self_test(struct net_device *dev, char __user *useraddr) |
1532 | { | |
1533 | struct ethtool_test test; | |
76fd8593 | 1534 | const struct ethtool_ops *ops = dev->ethtool_ops; |
1da177e4 | 1535 | u64 *data; |
ff03d49f | 1536 | int ret, test_len; |
1da177e4 | 1537 | |
a9828ec6 | 1538 | if (!ops->self_test || !ops->get_sset_count) |
1da177e4 LT |
1539 | return -EOPNOTSUPP; |
1540 | ||
a9828ec6 | 1541 | test_len = ops->get_sset_count(dev, ETH_SS_TEST); |
ff03d49f JG |
1542 | if (test_len < 0) |
1543 | return test_len; | |
1544 | WARN_ON(test_len == 0); | |
1545 | ||
1da177e4 LT |
1546 | if (copy_from_user(&test, useraddr, sizeof(test))) |
1547 | return -EFAULT; | |
1548 | ||
ff03d49f JG |
1549 | test.len = test_len; |
1550 | data = kmalloc(test_len * sizeof(u64), GFP_USER); | |
1da177e4 LT |
1551 | if (!data) |
1552 | return -ENOMEM; | |
1553 | ||
1554 | ops->self_test(dev, &test, data); | |
1555 | ||
1556 | ret = -EFAULT; | |
1557 | if (copy_to_user(useraddr, &test, sizeof(test))) | |
1558 | goto out; | |
1559 | useraddr += sizeof(test); | |
1560 | if (copy_to_user(useraddr, data, test.len * sizeof(u64))) | |
1561 | goto out; | |
1562 | ret = 0; | |
1563 | ||
1564 | out: | |
1565 | kfree(data); | |
1566 | return ret; | |
1567 | } | |
1568 | ||
1569 | static int ethtool_get_strings(struct net_device *dev, void __user *useraddr) | |
1570 | { | |
1571 | struct ethtool_gstrings gstrings; | |
1da177e4 LT |
1572 | u8 *data; |
1573 | int ret; | |
1574 | ||
1da177e4 LT |
1575 | if (copy_from_user(&gstrings, useraddr, sizeof(gstrings))) |
1576 | return -EFAULT; | |
1577 | ||
340ae165 | 1578 | ret = __ethtool_get_sset_count(dev, gstrings.string_set); |
a9828ec6 BH |
1579 | if (ret < 0) |
1580 | return ret; | |
1581 | ||
1582 | gstrings.len = ret; | |
1da177e4 LT |
1583 | |
1584 | data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER); | |
1585 | if (!data) | |
1586 | return -ENOMEM; | |
1587 | ||
340ae165 | 1588 | __ethtool_get_strings(dev, gstrings.string_set, data); |
1da177e4 LT |
1589 | |
1590 | ret = -EFAULT; | |
1591 | if (copy_to_user(useraddr, &gstrings, sizeof(gstrings))) | |
1592 | goto out; | |
1593 | useraddr += sizeof(gstrings); | |
1594 | if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN)) | |
1595 | goto out; | |
1596 | ret = 0; | |
1597 | ||
340ae165 | 1598 | out: |
1da177e4 LT |
1599 | kfree(data); |
1600 | return ret; | |
1601 | } | |
1602 | ||
1603 | static int ethtool_phys_id(struct net_device *dev, void __user *useraddr) | |
1604 | { | |
1605 | struct ethtool_value id; | |
1606 | ||
1607 | if (!dev->ethtool_ops->phys_id) | |
1608 | return -EOPNOTSUPP; | |
1609 | ||
1610 | if (copy_from_user(&id, useraddr, sizeof(id))) | |
1611 | return -EFAULT; | |
1612 | ||
1613 | return dev->ethtool_ops->phys_id(dev, id.data); | |
1614 | } | |
1615 | ||
1616 | static int ethtool_get_stats(struct net_device *dev, void __user *useraddr) | |
1617 | { | |
1618 | struct ethtool_stats stats; | |
76fd8593 | 1619 | const struct ethtool_ops *ops = dev->ethtool_ops; |
1da177e4 | 1620 | u64 *data; |
ff03d49f | 1621 | int ret, n_stats; |
1da177e4 | 1622 | |
a9828ec6 | 1623 | if (!ops->get_ethtool_stats || !ops->get_sset_count) |
1da177e4 LT |
1624 | return -EOPNOTSUPP; |
1625 | ||
a9828ec6 | 1626 | n_stats = ops->get_sset_count(dev, ETH_SS_STATS); |
ff03d49f JG |
1627 | if (n_stats < 0) |
1628 | return n_stats; | |
1629 | WARN_ON(n_stats == 0); | |
1630 | ||
1da177e4 LT |
1631 | if (copy_from_user(&stats, useraddr, sizeof(stats))) |
1632 | return -EFAULT; | |
1633 | ||
ff03d49f JG |
1634 | stats.n_stats = n_stats; |
1635 | data = kmalloc(n_stats * sizeof(u64), GFP_USER); | |
1da177e4 LT |
1636 | if (!data) |
1637 | return -ENOMEM; | |
1638 | ||
1639 | ops->get_ethtool_stats(dev, &stats, data); | |
1640 | ||
1641 | ret = -EFAULT; | |
1642 | if (copy_to_user(useraddr, &stats, sizeof(stats))) | |
1643 | goto out; | |
1644 | useraddr += sizeof(stats); | |
1645 | if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64))) | |
1646 | goto out; | |
1647 | ret = 0; | |
1648 | ||
1649 | out: | |
1650 | kfree(data); | |
1651 | return ret; | |
1652 | } | |
1653 | ||
0bf0519d | 1654 | static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr) |
a6f9a705 JW |
1655 | { |
1656 | struct ethtool_perm_addr epaddr; | |
a6f9a705 | 1657 | |
313674af | 1658 | if (copy_from_user(&epaddr, useraddr, sizeof(epaddr))) |
a6f9a705 JW |
1659 | return -EFAULT; |
1660 | ||
313674af MW |
1661 | if (epaddr.size < dev->addr_len) |
1662 | return -ETOOSMALL; | |
1663 | epaddr.size = dev->addr_len; | |
a6f9a705 | 1664 | |
a6f9a705 | 1665 | if (copy_to_user(useraddr, &epaddr, sizeof(epaddr))) |
313674af | 1666 | return -EFAULT; |
a6f9a705 | 1667 | useraddr += sizeof(epaddr); |
313674af MW |
1668 | if (copy_to_user(useraddr, dev->perm_addr, epaddr.size)) |
1669 | return -EFAULT; | |
1670 | return 0; | |
a6f9a705 JW |
1671 | } |
1672 | ||
13c99b24 JG |
1673 | static int ethtool_get_value(struct net_device *dev, char __user *useraddr, |
1674 | u32 cmd, u32 (*actor)(struct net_device *)) | |
3ae7c0b2 | 1675 | { |
8e557421 | 1676 | struct ethtool_value edata = { .cmd = cmd }; |
3ae7c0b2 | 1677 | |
13c99b24 | 1678 | if (!actor) |
3ae7c0b2 JG |
1679 | return -EOPNOTSUPP; |
1680 | ||
13c99b24 | 1681 | edata.data = actor(dev); |
3ae7c0b2 JG |
1682 | |
1683 | if (copy_to_user(useraddr, &edata, sizeof(edata))) | |
1684 | return -EFAULT; | |
1685 | return 0; | |
1686 | } | |
1687 | ||
13c99b24 JG |
1688 | static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr, |
1689 | void (*actor)(struct net_device *, u32)) | |
3ae7c0b2 JG |
1690 | { |
1691 | struct ethtool_value edata; | |
1692 | ||
13c99b24 | 1693 | if (!actor) |
3ae7c0b2 JG |
1694 | return -EOPNOTSUPP; |
1695 | ||
1696 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
1697 | return -EFAULT; | |
1698 | ||
13c99b24 | 1699 | actor(dev, edata.data); |
339bf024 JG |
1700 | return 0; |
1701 | } | |
1702 | ||
13c99b24 JG |
1703 | static int ethtool_set_value(struct net_device *dev, char __user *useraddr, |
1704 | int (*actor)(struct net_device *, u32)) | |
339bf024 JG |
1705 | { |
1706 | struct ethtool_value edata; | |
1707 | ||
13c99b24 | 1708 | if (!actor) |
339bf024 JG |
1709 | return -EOPNOTSUPP; |
1710 | ||
1711 | if (copy_from_user(&edata, useraddr, sizeof(edata))) | |
1712 | return -EFAULT; | |
1713 | ||
13c99b24 | 1714 | return actor(dev, edata.data); |
339bf024 JG |
1715 | } |
1716 | ||
97f8aefb | 1717 | static noinline_for_stack int ethtool_flash_device(struct net_device *dev, |
1718 | char __user *useraddr) | |
05c6a8d7 AK |
1719 | { |
1720 | struct ethtool_flash efl; | |
1721 | ||
1722 | if (copy_from_user(&efl, useraddr, sizeof(efl))) | |
1723 | return -EFAULT; | |
1724 | ||
1725 | if (!dev->ethtool_ops->flash_device) | |
1726 | return -EOPNOTSUPP; | |
1727 | ||
1728 | return dev->ethtool_ops->flash_device(dev, &efl); | |
1729 | } | |
1730 | ||
1da177e4 LT |
1731 | /* The main entry point in this file. Called from net/core/dev.c */ |
1732 | ||
881d966b | 1733 | int dev_ethtool(struct net *net, struct ifreq *ifr) |
1da177e4 | 1734 | { |
881d966b | 1735 | struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name); |
1da177e4 LT |
1736 | void __user *useraddr = ifr->ifr_data; |
1737 | u32 ethcmd; | |
1738 | int rc; | |
04ed3e74 | 1739 | u32 old_features; |
1da177e4 | 1740 | |
1da177e4 LT |
1741 | if (!dev || !netif_device_present(dev)) |
1742 | return -ENODEV; | |
1743 | ||
97f8aefb | 1744 | if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd))) |
1da177e4 LT |
1745 | return -EFAULT; |
1746 | ||
01414802 BH |
1747 | if (!dev->ethtool_ops) { |
1748 | /* ETHTOOL_GDRVINFO does not require any driver support. | |
1749 | * It is also unprivileged and does not change anything, | |
1750 | * so we can take a shortcut to it. */ | |
1751 | if (ethcmd == ETHTOOL_GDRVINFO) | |
1752 | return ethtool_get_drvinfo(dev, useraddr); | |
1753 | else | |
1754 | return -EOPNOTSUPP; | |
1755 | } | |
1756 | ||
75f3123c | 1757 | /* Allow some commands to be done by anyone */ |
97f8aefb | 1758 | switch (ethcmd) { |
0fdc100b | 1759 | case ETHTOOL_GSET: |
75f3123c | 1760 | case ETHTOOL_GDRVINFO: |
75f3123c | 1761 | case ETHTOOL_GMSGLVL: |
75f3123c SH |
1762 | case ETHTOOL_GCOALESCE: |
1763 | case ETHTOOL_GRINGPARAM: | |
1764 | case ETHTOOL_GPAUSEPARAM: | |
1765 | case ETHTOOL_GRXCSUM: | |
1766 | case ETHTOOL_GTXCSUM: | |
1767 | case ETHTOOL_GSG: | |
1768 | case ETHTOOL_GSTRINGS: | |
75f3123c SH |
1769 | case ETHTOOL_GTSO: |
1770 | case ETHTOOL_GPERMADDR: | |
1771 | case ETHTOOL_GUFO: | |
1772 | case ETHTOOL_GGSO: | |
1cab819b | 1773 | case ETHTOOL_GGRO: |
339bf024 JG |
1774 | case ETHTOOL_GFLAGS: |
1775 | case ETHTOOL_GPFLAGS: | |
0853ad66 | 1776 | case ETHTOOL_GRXFH: |
59089d8d SB |
1777 | case ETHTOOL_GRXRINGS: |
1778 | case ETHTOOL_GRXCLSRLCNT: | |
1779 | case ETHTOOL_GRXCLSRULE: | |
1780 | case ETHTOOL_GRXCLSRLALL: | |
5455c699 | 1781 | case ETHTOOL_GFEATURES: |
75f3123c SH |
1782 | break; |
1783 | default: | |
1784 | if (!capable(CAP_NET_ADMIN)) | |
1785 | return -EPERM; | |
1786 | } | |
1787 | ||
97f8aefb | 1788 | if (dev->ethtool_ops->begin) { |
1789 | rc = dev->ethtool_ops->begin(dev); | |
1790 | if (rc < 0) | |
1da177e4 | 1791 | return rc; |
97f8aefb | 1792 | } |
d8a33ac4 SH |
1793 | old_features = dev->features; |
1794 | ||
1da177e4 LT |
1795 | switch (ethcmd) { |
1796 | case ETHTOOL_GSET: | |
1797 | rc = ethtool_get_settings(dev, useraddr); | |
1798 | break; | |
1799 | case ETHTOOL_SSET: | |
1800 | rc = ethtool_set_settings(dev, useraddr); | |
1801 | break; | |
1802 | case ETHTOOL_GDRVINFO: | |
1803 | rc = ethtool_get_drvinfo(dev, useraddr); | |
1da177e4 LT |
1804 | break; |
1805 | case ETHTOOL_GREGS: | |
1806 | rc = ethtool_get_regs(dev, useraddr); | |
1807 | break; | |
1808 | case ETHTOOL_GWOL: | |
1809 | rc = ethtool_get_wol(dev, useraddr); | |
1810 | break; | |
1811 | case ETHTOOL_SWOL: | |
1812 | rc = ethtool_set_wol(dev, useraddr); | |
1813 | break; | |
1814 | case ETHTOOL_GMSGLVL: | |
13c99b24 JG |
1815 | rc = ethtool_get_value(dev, useraddr, ethcmd, |
1816 | dev->ethtool_ops->get_msglevel); | |
1da177e4 LT |
1817 | break; |
1818 | case ETHTOOL_SMSGLVL: | |
13c99b24 JG |
1819 | rc = ethtool_set_value_void(dev, useraddr, |
1820 | dev->ethtool_ops->set_msglevel); | |
1da177e4 LT |
1821 | break; |
1822 | case ETHTOOL_NWAY_RST: | |
1823 | rc = ethtool_nway_reset(dev); | |
1824 | break; | |
1825 | case ETHTOOL_GLINK: | |
e596e6e4 | 1826 | rc = ethtool_get_link(dev, useraddr); |
1da177e4 LT |
1827 | break; |
1828 | case ETHTOOL_GEEPROM: | |
1829 | rc = ethtool_get_eeprom(dev, useraddr); | |
1830 | break; | |
1831 | case ETHTOOL_SEEPROM: | |
1832 | rc = ethtool_set_eeprom(dev, useraddr); | |
1833 | break; | |
1834 | case ETHTOOL_GCOALESCE: | |
1835 | rc = ethtool_get_coalesce(dev, useraddr); | |
1836 | break; | |
1837 | case ETHTOOL_SCOALESCE: | |
1838 | rc = ethtool_set_coalesce(dev, useraddr); | |
1839 | break; | |
1840 | case ETHTOOL_GRINGPARAM: | |
1841 | rc = ethtool_get_ringparam(dev, useraddr); | |
1842 | break; | |
1843 | case ETHTOOL_SRINGPARAM: | |
1844 | rc = ethtool_set_ringparam(dev, useraddr); | |
1845 | break; | |
1846 | case ETHTOOL_GPAUSEPARAM: | |
1847 | rc = ethtool_get_pauseparam(dev, useraddr); | |
1848 | break; | |
1849 | case ETHTOOL_SPAUSEPARAM: | |
1850 | rc = ethtool_set_pauseparam(dev, useraddr); | |
1851 | break; | |
1da177e4 LT |
1852 | case ETHTOOL_TEST: |
1853 | rc = ethtool_self_test(dev, useraddr); | |
1854 | break; | |
1855 | case ETHTOOL_GSTRINGS: | |
1856 | rc = ethtool_get_strings(dev, useraddr); | |
1857 | break; | |
1858 | case ETHTOOL_PHYS_ID: | |
1859 | rc = ethtool_phys_id(dev, useraddr); | |
1860 | break; | |
1861 | case ETHTOOL_GSTATS: | |
1862 | rc = ethtool_get_stats(dev, useraddr); | |
1863 | break; | |
a6f9a705 JW |
1864 | case ETHTOOL_GPERMADDR: |
1865 | rc = ethtool_get_perm_addr(dev, useraddr); | |
1866 | break; | |
3ae7c0b2 | 1867 | case ETHTOOL_GFLAGS: |
13c99b24 | 1868 | rc = ethtool_get_value(dev, useraddr, ethcmd, |
1896e61f SS |
1869 | (dev->ethtool_ops->get_flags ? |
1870 | dev->ethtool_ops->get_flags : | |
1871 | ethtool_op_get_flags)); | |
3ae7c0b2 JG |
1872 | break; |
1873 | case ETHTOOL_SFLAGS: | |
da8ac86c | 1874 | rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags); |
3ae7c0b2 | 1875 | break; |
339bf024 | 1876 | case ETHTOOL_GPFLAGS: |
13c99b24 JG |
1877 | rc = ethtool_get_value(dev, useraddr, ethcmd, |
1878 | dev->ethtool_ops->get_priv_flags); | |
339bf024 JG |
1879 | break; |
1880 | case ETHTOOL_SPFLAGS: | |
13c99b24 JG |
1881 | rc = ethtool_set_value(dev, useraddr, |
1882 | dev->ethtool_ops->set_priv_flags); | |
339bf024 | 1883 | break; |
0853ad66 | 1884 | case ETHTOOL_GRXFH: |
59089d8d SB |
1885 | case ETHTOOL_GRXRINGS: |
1886 | case ETHTOOL_GRXCLSRLCNT: | |
1887 | case ETHTOOL_GRXCLSRULE: | |
1888 | case ETHTOOL_GRXCLSRLALL: | |
bf988435 | 1889 | rc = ethtool_get_rxnfc(dev, ethcmd, useraddr); |
0853ad66 SB |
1890 | break; |
1891 | case ETHTOOL_SRXFH: | |
59089d8d SB |
1892 | case ETHTOOL_SRXCLSRLDEL: |
1893 | case ETHTOOL_SRXCLSRLINS: | |
bf988435 | 1894 | rc = ethtool_set_rxnfc(dev, ethcmd, useraddr); |
0853ad66 | 1895 | break; |
05c6a8d7 AK |
1896 | case ETHTOOL_FLASHDEV: |
1897 | rc = ethtool_flash_device(dev, useraddr); | |
1898 | break; | |
d73d3a8c BH |
1899 | case ETHTOOL_RESET: |
1900 | rc = ethtool_reset(dev, useraddr); | |
1901 | break; | |
15682bc4 PWJ |
1902 | case ETHTOOL_SRXNTUPLE: |
1903 | rc = ethtool_set_rx_ntuple(dev, useraddr); | |
1904 | break; | |
1905 | case ETHTOOL_GRXNTUPLE: | |
1906 | rc = ethtool_get_rx_ntuple(dev, useraddr); | |
1907 | break; | |
723b2f57 JG |
1908 | case ETHTOOL_GSSET_INFO: |
1909 | rc = ethtool_get_sset_info(dev, useraddr); | |
1910 | break; | |
a5b6ee29 BH |
1911 | case ETHTOOL_GRXFHINDIR: |
1912 | rc = ethtool_get_rxfh_indir(dev, useraddr); | |
1913 | break; | |
1914 | case ETHTOOL_SRXFHINDIR: | |
1915 | rc = ethtool_set_rxfh_indir(dev, useraddr); | |
1916 | break; | |
5455c699 MM |
1917 | case ETHTOOL_GFEATURES: |
1918 | rc = ethtool_get_features(dev, useraddr); | |
1919 | break; | |
1920 | case ETHTOOL_SFEATURES: | |
1921 | rc = ethtool_set_features(dev, useraddr); | |
1922 | break; | |
0a417704 | 1923 | case ETHTOOL_GTXCSUM: |
e83d360d | 1924 | case ETHTOOL_GRXCSUM: |
0a417704 MM |
1925 | case ETHTOOL_GSG: |
1926 | case ETHTOOL_GTSO: | |
1927 | case ETHTOOL_GUFO: | |
1928 | case ETHTOOL_GGSO: | |
1929 | case ETHTOOL_GGRO: | |
1930 | rc = ethtool_get_one_feature(dev, useraddr, ethcmd); | |
1931 | break; | |
1932 | case ETHTOOL_STXCSUM: | |
e83d360d | 1933 | case ETHTOOL_SRXCSUM: |
0a417704 MM |
1934 | case ETHTOOL_SSG: |
1935 | case ETHTOOL_STSO: | |
1936 | case ETHTOOL_SUFO: | |
1937 | case ETHTOOL_SGSO: | |
1938 | case ETHTOOL_SGRO: | |
1939 | rc = ethtool_set_one_feature(dev, useraddr, ethcmd); | |
1940 | break; | |
1da177e4 | 1941 | default: |
61a44b9c | 1942 | rc = -EOPNOTSUPP; |
1da177e4 | 1943 | } |
4ec93edb | 1944 | |
e71a4783 | 1945 | if (dev->ethtool_ops->complete) |
1da177e4 | 1946 | dev->ethtool_ops->complete(dev); |
d8a33ac4 SH |
1947 | |
1948 | if (old_features != dev->features) | |
1949 | netdev_features_change(dev); | |
1950 | ||
1da177e4 | 1951 | return rc; |
1da177e4 | 1952 | } |