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ipv6: Replace "#include <asm/uaccess>" with "#include <linux/uaccess>"
[deliverable/linux.git] / net / core / ethtool.c
CommitLineData
1da177e4
LT		 1/*
2 * net/core/ethtool.c - Ethtool ioctl handler
3 * Copyright (c) 2003 Matthew Wilcox <matthew@wil.cx>
4 *
5 * This file is where we call all the ethtool_ops commands to get
61a44b9c 6 * the information ethtool needs.
1da177e4 7 *
61a44b9c
MW		 8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
1da177e4
LT		 12 */
13
14#include <linux/module.h>
15#include <linux/types.h>
4fc268d2 16#include <linux/capability.h>
1da177e4
LT		 17#include <linux/errno.h>
18#include <linux/ethtool.h>
19#include <linux/netdevice.h>
c8f3a8c3
RC		 20#include <linux/net_tstamp.h>
21#include <linux/phy.h>
d17792eb 22#include <linux/bitops.h>
97f8aefb 23#include <linux/uaccess.h>
73da16c2 24#include <linux/vmalloc.h>
5a0e3ad6 25#include <linux/slab.h>
68f512f2
BH		 26#include <linux/rtnetlink.h>
27#include <linux/sched.h>
960fb622 28#include <linux/net.h>
1da177e4 29
4ec93edb 30/*
1da177e4
LT		 31 * Some useful ethtool_ops methods that're device independent.
32 * If we find that all drivers want to do the same thing here,
33 * we can turn these into dev_() function calls.
34 */
35
36u32 ethtool_op_get_link(struct net_device *dev)
37{
38 return netif_carrier_ok(dev) ? 1 : 0;
39}
97f8aefb 40EXPORT_SYMBOL(ethtool_op_get_link);
1da177e4 41
02eacbd0
RC		 42int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
43{
44 info->so_timestamping =
45 SOF_TIMESTAMPING_TX_SOFTWARE |
46 SOF_TIMESTAMPING_RX_SOFTWARE |
47 SOF_TIMESTAMPING_SOFTWARE;
48 info->phc_index = -1;
49 return 0;
50}
51EXPORT_SYMBOL(ethtool_op_get_ts_info);
52
1da177e4
LT		 53/* Handlers for each ethtool command */
54
475414f6 55#define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)
5455c699 56
9d921549
MM		 57static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
58 [NETIF_F_SG_BIT] = "tx-scatter-gather",
59 [NETIF_F_IP_CSUM_BIT] = "tx-checksum-ipv4",
9d921549
MM		 60 [NETIF_F_HW_CSUM_BIT] = "tx-checksum-ip-generic",
61 [NETIF_F_IPV6_CSUM_BIT] = "tx-checksum-ipv6",
62 [NETIF_F_HIGHDMA_BIT] = "highdma",
63 [NETIF_F_FRAGLIST_BIT] = "tx-scatter-gather-fraglist",
788dfcac 64 [NETIF_F_HW_VLAN_CTAG_TX_BIT] = "tx-vlan-hw-insert",
9d921549 65
788dfcac
FLVC		 66 [NETIF_F_HW_VLAN_CTAG_RX_BIT] = "rx-vlan-hw-parse",
67 [NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
2d6577f1
DM		 68 [NETIF_F_HW_VLAN_STAG_TX_BIT] = "tx-vlan-stag-hw-insert",
69 [NETIF_F_HW_VLAN_STAG_RX_BIT] = "rx-vlan-stag-hw-parse",
70 [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
9d921549
MM		 71 [NETIF_F_VLAN_CHALLENGED_BIT] = "vlan-challenged",
72 [NETIF_F_GSO_BIT] = "tx-generic-segmentation",
73 [NETIF_F_LLTX_BIT] = "tx-lockless",
74 [NETIF_F_NETNS_LOCAL_BIT] = "netns-local",
75 [NETIF_F_GRO_BIT] = "rx-gro",
76 [NETIF_F_LRO_BIT] = "rx-lro",
77
78 [NETIF_F_TSO_BIT] = "tx-tcp-segmentation",
79 [NETIF_F_UFO_BIT] = "tx-udp-fragmentation",
80 [NETIF_F_GSO_ROBUST_BIT] = "tx-gso-robust",
81 [NETIF_F_TSO_ECN_BIT] = "tx-tcp-ecn-segmentation",
82 [NETIF_F_TSO6_BIT] = "tx-tcp6-segmentation",
83 [NETIF_F_FSO_BIT] = "tx-fcoe-segmentation",
68c33163 84 [NETIF_F_GSO_GRE_BIT] = "tx-gre-segmentation",
cb32f511 85 [NETIF_F_GSO_IPIP_BIT] = "tx-ipip-segmentation",
61c1db7f 86 [NETIF_F_GSO_SIT_BIT] = "tx-sit-segmentation",
73136267 87 [NETIF_F_GSO_UDP_TUNNEL_BIT] = "tx-udp_tnl-segmentation",
9d921549
MM		 88
89 [NETIF_F_FCOE_CRC_BIT] = "tx-checksum-fcoe-crc",
90 [NETIF_F_SCTP_CSUM_BIT] = "tx-checksum-sctp",
91 [NETIF_F_FCOE_MTU_BIT] = "fcoe-mtu",
92 [NETIF_F_NTUPLE_BIT] = "rx-ntuple-filter",
93 [NETIF_F_RXHASH_BIT] = "rx-hashing",
94 [NETIF_F_RXCSUM_BIT] = "rx-checksum",
95 [NETIF_F_NOCACHE_COPY_BIT] = "tx-nocache-copy",
96 [NETIF_F_LOOPBACK_BIT] = "loopback",
36eabda3 97 [NETIF_F_RXFCS_BIT] = "rx-fcs",
5e0c03c8 98 [NETIF_F_RXALL_BIT] = "rx-all",
a6cc0cfa 99 [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
d0290214 100 [NETIF_F_BUSY_POLL_BIT] = "busy-poll",
9d921549
MM		 101};
102
892311f6
EP		 103static const char
104rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
105 [ETH_RSS_HASH_TOP_BIT] = "toeplitz",
106 [ETH_RSS_HASH_XOR_BIT] = "xor",
107};
108
5455c699
MM		 109static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
110{
111 struct ethtool_gfeatures cmd = {
112 .cmd = ETHTOOL_GFEATURES,
113 .size = ETHTOOL_DEV_FEATURE_WORDS,
114 };
475414f6 115 struct ethtool_get_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
5455c699
MM		 116 u32 __user *sizeaddr;
117 u32 copy_size;
475414f6
MM		 118 int i;
119
120 /* in case feature bits run out again */
09da71b1 121 BUILD_BUG_ON(ETHTOOL_DEV_FEATURE_WORDS * sizeof(u32) > sizeof(netdev_features_t));
475414f6
MM		 122
123 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
09da71b1
MM		 124 features[i].available = (u32)(dev->hw_features >> (32 * i));
125 features[i].requested = (u32)(dev->wanted_features >> (32 * i));
126 features[i].active = (u32)(dev->features >> (32 * i));
127 features[i].never_changed =
128 (u32)(NETIF_F_NEVER_CHANGE >> (32 * i));
475414f6 129 }
5455c699
MM		 130
131 sizeaddr = useraddr + offsetof(struct ethtool_gfeatures, size);
132 if (get_user(copy_size, sizeaddr))
133 return -EFAULT;
134
135 if (copy_size > ETHTOOL_DEV_FEATURE_WORDS)
136 copy_size = ETHTOOL_DEV_FEATURE_WORDS;
137
138 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
139 return -EFAULT;
140 useraddr += sizeof(cmd);
141 if (copy_to_user(useraddr, features, copy_size * sizeof(*features)))
142 return -EFAULT;
143
144 return 0;
145}
146
147static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
148{
149 struct ethtool_sfeatures cmd;
150 struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
475414f6
MM		 151 netdev_features_t wanted = 0, valid = 0;
152 int i, ret = 0;
5455c699
MM		 153
154 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
155 return -EFAULT;
156 useraddr += sizeof(cmd);
157
158 if (cmd.size != ETHTOOL_DEV_FEATURE_WORDS)
159 return -EINVAL;
160
161 if (copy_from_user(features, useraddr, sizeof(features)))
162 return -EFAULT;
163
475414f6 164 for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
09da71b1
MM		 165 valid |= (netdev_features_t)features[i].valid << (32 * i);
166 wanted |= (netdev_features_t)features[i].requested << (32 * i);
475414f6
MM		 167 }
168
169 if (valid & ~NETIF_F_ETHTOOL_BITS)
5455c699
MM		 170 return -EINVAL;
171
475414f6
MM		 172 if (valid & ~dev->hw_features) {
173 valid &= dev->hw_features;
5455c699
MM		 174 ret |= ETHTOOL_F_UNSUPPORTED;
175 }
176
475414f6
MM		 177 dev->wanted_features &= ~valid;
178 dev->wanted_features |= wanted & valid;
6cb6a27c 179 __netdev_update_features(dev);
5455c699 180
475414f6 181 if ((dev->wanted_features ^ dev->features) & valid)
5455c699
MM		 182 ret |= ETHTOOL_F_WISH;
183
184 return ret;
185}
186
340ae165
MM		 187static int __ethtool_get_sset_count(struct net_device *dev, int sset)
188{
189 const struct ethtool_ops *ops = dev->ethtool_ops;
190
5455c699
MM		 191 if (sset == ETH_SS_FEATURES)
192 return ARRAY_SIZE(netdev_features_strings);
193
892311f6
EP		 194 if (sset == ETH_SS_RSS_HASH_FUNCS)
195 return ARRAY_SIZE(rss_hash_func_strings);
196
c03a14e8 197 if (ops->get_sset_count && ops->get_strings)
340ae165
MM		 198 return ops->get_sset_count(dev, sset);
199 else
200 return -EOPNOTSUPP;
201}
202
203static void __ethtool_get_strings(struct net_device *dev,
204 u32 stringset, u8 *data)
205{
206 const struct ethtool_ops *ops = dev->ethtool_ops;
207
5455c699
MM		 208 if (stringset == ETH_SS_FEATURES)
209 memcpy(data, netdev_features_strings,
210 sizeof(netdev_features_strings));
892311f6
EP		 211 else if (stringset == ETH_SS_RSS_HASH_FUNCS)
212 memcpy(data, rss_hash_func_strings,
213 sizeof(rss_hash_func_strings));
5455c699
MM		 214 else
215 /* ops->get_strings is valid because checked earlier */
216 ops->get_strings(dev, stringset, data);
340ae165
MM		 217}
218
c8f44aff 219static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
0a417704
MM		 220{
221 /* feature masks of legacy discrete ethtool ops */
222
223 switch (eth_cmd) {
224 case ETHTOOL_GTXCSUM:
225 case ETHTOOL_STXCSUM:
226 return NETIF_F_ALL_CSUM | NETIF_F_SCTP_CSUM;
e83d360d
MM		 227 case ETHTOOL_GRXCSUM:
228 case ETHTOOL_SRXCSUM:
229 return NETIF_F_RXCSUM;
0a417704
MM		 230 case ETHTOOL_GSG:
231 case ETHTOOL_SSG:
232 return NETIF_F_SG;
233 case ETHTOOL_GTSO:
234 case ETHTOOL_STSO:
235 return NETIF_F_ALL_TSO;
236 case ETHTOOL_GUFO:
237 case ETHTOOL_SUFO:
238 return NETIF_F_UFO;
239 case ETHTOOL_GGSO:
240 case ETHTOOL_SGSO:
241 return NETIF_F_GSO;
242 case ETHTOOL_GGRO:
243 case ETHTOOL_SGRO:
244 return NETIF_F_GRO;
245 default:
246 BUG();
247 }
248}
249
0a417704
MM		 250static int ethtool_get_one_feature(struct net_device *dev,
251 char __user *useraddr, u32 ethcmd)
252{
c8f44aff 253 netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
0a417704
MM		 254 struct ethtool_value edata = {
255 .cmd = ethcmd,
86794881 256 .data = !!(dev->features & mask),
0a417704 257 };
0a417704 258
0a417704
MM		 259 if (copy_to_user(useraddr, &edata, sizeof(edata)))
260 return -EFAULT;
261 return 0;
262}
263
0a417704
MM		 264static int ethtool_set_one_feature(struct net_device *dev,
265 void __user *useraddr, u32 ethcmd)
266{
267 struct ethtool_value edata;
c8f44aff 268 netdev_features_t mask;
0a417704
MM		 269
270 if (copy_from_user(&edata, useraddr, sizeof(edata)))
271 return -EFAULT;
272
86794881
MM		 273 mask = ethtool_get_feature_mask(ethcmd);
274 mask &= dev->hw_features;
bc5787c6
MM		 275 if (!mask)
276 return -EOPNOTSUPP;
86794881 277
bc5787c6
MM		 278 if (edata.data)
279 dev->wanted_features |= mask;
280 else
281 dev->wanted_features &= ~mask;
86794881 282
bc5787c6 283 __netdev_update_features(dev);
86794881 284
bc5787c6
MM		 285 return 0;
286}
287
02b3a552
MM		 288#define ETH_ALL_FLAGS (ETH_FLAG_LRO | ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN | \
289 ETH_FLAG_NTUPLE | ETH_FLAG_RXHASH)
f646968f
PM		 290#define ETH_ALL_FEATURES (NETIF_F_LRO | NETIF_F_HW_VLAN_CTAG_RX | \
291 NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_NTUPLE | \
292 NETIF_F_RXHASH)
bc5787c6
MM		 293
294static u32 __ethtool_get_flags(struct net_device *dev)
295{
02b3a552
MM		 296 u32 flags = 0;
297
8a73125c
DF		 298 if (dev->features & NETIF_F_LRO)
299 flags |= ETH_FLAG_LRO;
300 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX)
301 flags |= ETH_FLAG_RXVLAN;
302 if (dev->features & NETIF_F_HW_VLAN_CTAG_TX)
303 flags |= ETH_FLAG_TXVLAN;
304 if (dev->features & NETIF_F_NTUPLE)
305 flags |= ETH_FLAG_NTUPLE;
306 if (dev->features & NETIF_F_RXHASH)
307 flags |= ETH_FLAG_RXHASH;
02b3a552
MM		 308
309 return flags;
0a417704
MM		 310}
311
bc5787c6 312static int __ethtool_set_flags(struct net_device *dev, u32 data)
da8ac86c 313{
c8f44aff 314 netdev_features_t features = 0, changed;
da8ac86c 315
02b3a552 316 if (data & ~ETH_ALL_FLAGS)
da8ac86c
MM		 317 return -EINVAL;
318
8a73125c
DF		 319 if (data & ETH_FLAG_LRO)
320 features |= NETIF_F_LRO;
321 if (data & ETH_FLAG_RXVLAN)
322 features |= NETIF_F_HW_VLAN_CTAG_RX;
323 if (data & ETH_FLAG_TXVLAN)
324 features |= NETIF_F_HW_VLAN_CTAG_TX;
325 if (data & ETH_FLAG_NTUPLE)
326 features |= NETIF_F_NTUPLE;
327 if (data & ETH_FLAG_RXHASH)
328 features |= NETIF_F_RXHASH;
02b3a552 329
da8ac86c 330 /* allow changing only bits set in hw_features */
02b3a552 331 changed = (features ^ dev->features) & ETH_ALL_FEATURES;
da8ac86c
MM		 332 if (changed & ~dev->hw_features)
333 return (changed & dev->hw_features) ? -EINVAL : -EOPNOTSUPP;
334
335 dev->wanted_features =
02b3a552 336 (dev->wanted_features & ~changed) | (features & changed);
da8ac86c 337
6cb6a27c 338 __netdev_update_features(dev);
da8ac86c
MM		 339
340 return 0;
341}
342
4bc71cb9 343int __ethtool_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1da177e4 344{
4bc71cb9 345 ASSERT_RTNL();
1da177e4 346
c03a14e8 347 if (!dev->ethtool_ops->get_settings)
1da177e4
LT		 348 return -EOPNOTSUPP;
349
4bc71cb9
JP		 350 memset(cmd, 0, sizeof(struct ethtool_cmd));
351 cmd->cmd = ETHTOOL_GSET;
352 return dev->ethtool_ops->get_settings(dev, cmd);
353}
354EXPORT_SYMBOL(__ethtool_get_settings);
355
356static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
357{
358 int err;
359 struct ethtool_cmd cmd;
360
361 err = __ethtool_get_settings(dev, &cmd);
1da177e4
LT		 362 if (err < 0)
363 return err;
364
365 if (copy_to_user(useraddr, &cmd, sizeof(cmd)))
366 return -EFAULT;
367 return 0;
368}
369
370static int ethtool_set_settings(struct net_device *dev, void __user *useraddr)
371{
372 struct ethtool_cmd cmd;
373
374 if (!dev->ethtool_ops->set_settings)
375 return -EOPNOTSUPP;
376
377 if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
378 return -EFAULT;
379
380 return dev->ethtool_ops->set_settings(dev, &cmd);
381}
382
97f8aefb 383static noinline_for_stack int ethtool_get_drvinfo(struct net_device *dev,
384 void __user *useraddr)
1da177e4
LT		 385{
386 struct ethtool_drvinfo info;
76fd8593 387 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 388
1da177e4
LT		 389 memset(&info, 0, sizeof(info));
390 info.cmd = ETHTOOL_GDRVINFO;
c03a14e8 391 if (ops->get_drvinfo) {
01414802
BH		 392 ops->get_drvinfo(dev, &info);
393 } else if (dev->dev.parent && dev->dev.parent->driver) {
394 strlcpy(info.bus_info, dev_name(dev->dev.parent),
395 sizeof(info.bus_info));
396 strlcpy(info.driver, dev->dev.parent->driver->name,
397 sizeof(info.driver));
398 } else {
399 return -EOPNOTSUPP;
400 }
1da177e4 401
723b2f57
JG		 402 /*
403 * this method of obtaining string set info is deprecated;
d17792eb 404 * Use ETHTOOL_GSSET_INFO instead.
723b2f57 405 */
c03a14e8 406 if (ops->get_sset_count) {
ff03d49f
JG		 407 int rc;
408
409 rc = ops->get_sset_count(dev, ETH_SS_TEST);
410 if (rc >= 0)
411 info.testinfo_len = rc;
412 rc = ops->get_sset_count(dev, ETH_SS_STATS);
413 if (rc >= 0)
414 info.n_stats = rc;
339bf024
JG		 415 rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
416 if (rc >= 0)
417 info.n_priv_flags = rc;
ff03d49f 418 }
c03a14e8 419 if (ops->get_regs_len)
1da177e4 420 info.regdump_len = ops->get_regs_len(dev);
c03a14e8 421 if (ops->get_eeprom_len)
1da177e4
LT		 422 info.eedump_len = ops->get_eeprom_len(dev);
423
424 if (copy_to_user(useraddr, &info, sizeof(info)))
425 return -EFAULT;
426 return 0;
427}
428
f5c445ed 429static noinline_for_stack int ethtool_get_sset_info(struct net_device *dev,
97f8aefb 430 void __user *useraddr)
723b2f57
JG		 431{
432 struct ethtool_sset_info info;
723b2f57
JG		 433 u64 sset_mask;
434 int i, idx = 0, n_bits = 0, ret, rc;
435 u32 *info_buf = NULL;
436
723b2f57
JG		 437 if (copy_from_user(&info, useraddr, sizeof(info)))
438 return -EFAULT;
439
440 /* store copy of mask, because we zero struct later on */
441 sset_mask = info.sset_mask;
442 if (!sset_mask)
443 return 0;
444
445 /* calculate size of return buffer */
d17792eb 446 n_bits = hweight64(sset_mask);
723b2f57
JG		 447
448 memset(&info, 0, sizeof(info));
449 info.cmd = ETHTOOL_GSSET_INFO;
450
451 info_buf = kzalloc(n_bits * sizeof(u32), GFP_USER);
452 if (!info_buf)
453 return -ENOMEM;
454
455 /*
456 * fill return buffer based on input bitmask and successful
457 * get_sset_count return
458 */
459 for (i = 0; i < 64; i++) {
460 if (!(sset_mask & (1ULL << i)))
461 continue;
462
340ae165 463 rc = __ethtool_get_sset_count(dev, i);
723b2f57
JG		 464 if (rc >= 0) {
465 info.sset_mask |= (1ULL << i);
466 info_buf[idx++] = rc;
467 }
468 }
469
470 ret = -EFAULT;
471 if (copy_to_user(useraddr, &info, sizeof(info)))
472 goto out;
473
474 useraddr += offsetof(struct ethtool_sset_info, data);
475 if (copy_to_user(useraddr, info_buf, idx * sizeof(u32)))
476 goto out;
477
478 ret = 0;
479
480out:
481 kfree(info_buf);
482 return ret;
483}
484
97f8aefb 485static noinline_for_stack int ethtool_set_rxnfc(struct net_device *dev,
bf988435 486 u32 cmd, void __user *useraddr)
0853ad66 487{
bf988435
BH		 488 struct ethtool_rxnfc info;
489 size_t info_size = sizeof(info);
55664f32 490 int rc;
0853ad66 491
59089d8d 492 if (!dev->ethtool_ops->set_rxnfc)
0853ad66
SB		 493 return -EOPNOTSUPP;
494
bf988435
BH		 495 /* struct ethtool_rxnfc was originally defined for
496 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
497 * members. User-space might still be using that
498 * definition. */
499 if (cmd == ETHTOOL_SRXFH)
500 info_size = (offsetof(struct ethtool_rxnfc, data) +
501 sizeof(info.data));
502
503 if (copy_from_user(&info, useraddr, info_size))
0853ad66
SB		 504 return -EFAULT;
505
55664f32
BH		 506 rc = dev->ethtool_ops->set_rxnfc(dev, &info);
507 if (rc)
508 return rc;
509
510 if (cmd == ETHTOOL_SRXCLSRLINS &&
511 copy_to_user(useraddr, &info, info_size))
512 return -EFAULT;
513
514 return 0;
0853ad66
SB		 515}
516
97f8aefb 517static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
bf988435 518 u32 cmd, void __user *useraddr)
0853ad66
SB		 519{
520 struct ethtool_rxnfc info;
bf988435 521 size_t info_size = sizeof(info);
59089d8d
SB		 522 const struct ethtool_ops *ops = dev->ethtool_ops;
523 int ret;
524 void *rule_buf = NULL;
0853ad66 525
59089d8d 526 if (!ops->get_rxnfc)
0853ad66
SB		 527 return -EOPNOTSUPP;
528
bf988435
BH		 529 /* struct ethtool_rxnfc was originally defined for
530 * ETHTOOL_{G,S}RXFH with only the cmd, flow_type and data
531 * members. User-space might still be using that
532 * definition. */
533 if (cmd == ETHTOOL_GRXFH)
534 info_size = (offsetof(struct ethtool_rxnfc, data) +
535 sizeof(info.data));
536
537 if (copy_from_user(&info, useraddr, info_size))
0853ad66
SB		 538 return -EFAULT;
539
59089d8d
SB		 540 if (info.cmd == ETHTOOL_GRXCLSRLALL) {
541 if (info.rule_cnt > 0) {
db048b69 542 if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
ae6df5f9 543 rule_buf = kzalloc(info.rule_cnt * sizeof(u32),
db048b69 544 GFP_USER);
59089d8d
SB		 545 if (!rule_buf)
546 return -ENOMEM;
547 }
548 }
0853ad66 549
59089d8d
SB		 550 ret = ops->get_rxnfc(dev, &info, rule_buf);
551 if (ret < 0)
552 goto err_out;
553
554 ret = -EFAULT;
bf988435 555 if (copy_to_user(useraddr, &info, info_size))
59089d8d
SB		 556 goto err_out;
557
558 if (rule_buf) {
559 useraddr += offsetof(struct ethtool_rxnfc, rule_locs);
560 if (copy_to_user(useraddr, rule_buf,
561 info.rule_cnt * sizeof(u32)))
562 goto err_out;
563 }
564 ret = 0;
565
566err_out:
c9caceca 567 kfree(rule_buf);
59089d8d
SB		 568
569 return ret;
0853ad66
SB		 570}
571
3de0b592
VD		 572static int ethtool_copy_validate_indir(u32 *indir, void __user *useraddr,
573 struct ethtool_rxnfc *rx_rings,
574 u32 size)
575{
fb95cd8d 576 int i;
3de0b592
VD		 577
578 if (copy_from_user(indir, useraddr, size * sizeof(indir[0])))
fb95cd8d 579 return -EFAULT;
3de0b592
VD		 580
581 /* Validate ring indices */
fb95cd8d
BH		 582 for (i = 0; i < size; i++)
583 if (indir[i] >= rx_rings->data)
584 return -EINVAL;
585
586 return 0;
3de0b592
VD		 587}
588
960fb622
ED		 589u8 netdev_rss_key[NETDEV_RSS_KEY_LEN];
590
591void netdev_rss_key_fill(void *buffer, size_t len)
592{
593 BUG_ON(len > sizeof(netdev_rss_key));
594 net_get_random_once(netdev_rss_key, sizeof(netdev_rss_key));
595 memcpy(buffer, netdev_rss_key, len);
596}
597EXPORT_SYMBOL(netdev_rss_key_fill);
598
a5b6ee29
BH		 599static noinline_for_stack int ethtool_get_rxfh_indir(struct net_device *dev,
600 void __user *useraddr)
601{
7850f63f
BH		 602 u32 user_size, dev_size;
603 u32 *indir;
a5b6ee29
BH		 604 int ret;
605
7850f63f 606 if (!dev->ethtool_ops->get_rxfh_indir_size ||
fe62d001 607 !dev->ethtool_ops->get_rxfh)
7850f63f
BH		 608 return -EOPNOTSUPP;
609 dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
610 if (dev_size == 0)
a5b6ee29
BH		 611 return -EOPNOTSUPP;
612
7850f63f 613 if (copy_from_user(&user_size,
a5b6ee29 614 useraddr + offsetof(struct ethtool_rxfh_indir, size),
7850f63f 615 sizeof(user_size)))
a5b6ee29
BH		 616 return -EFAULT;
617
7850f63f
BH		 618 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh_indir, size),
619 &dev_size, sizeof(dev_size)))
620 return -EFAULT;
621
622 /* If the user buffer size is 0, this is just a query for the
623 * device table size. Otherwise, if it's smaller than the
624 * device table size it's an error.
625 */
626 if (user_size < dev_size)
627 return user_size == 0 ? 0 : -EINVAL;
628
629 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
a5b6ee29
BH		 630 if (!indir)
631 return -ENOMEM;
632
892311f6 633 ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
a5b6ee29
BH		 634 if (ret)
635 goto out;
636
7850f63f
BH		 637 if (copy_to_user(useraddr +
638 offsetof(struct ethtool_rxfh_indir, ring_index[0]),
639 indir, dev_size * sizeof(indir[0])))
a5b6ee29
BH		 640 ret = -EFAULT;
641
642out:
643 kfree(indir);
644 return ret;
645}
646
647static noinline_for_stack int ethtool_set_rxfh_indir(struct net_device *dev,
648 void __user *useraddr)
649{
7850f63f
BH		 650 struct ethtool_rxnfc rx_rings;
651 u32 user_size, dev_size, i;
652 u32 *indir;
c03a14e8 653 const struct ethtool_ops *ops = dev->ethtool_ops;
a5b6ee29 654 int ret;
3de0b592 655 u32 ringidx_offset = offsetof(struct ethtool_rxfh_indir, ring_index[0]);
a5b6ee29 656
fe62d001 657 if (!ops->get_rxfh_indir_size || !ops->set_rxfh ||
c03a14e8 658 !ops->get_rxnfc)
7850f63f 659 return -EOPNOTSUPP;
c03a14e8
JP		 660
661 dev_size = ops->get_rxfh_indir_size(dev);
7850f63f 662 if (dev_size == 0)
a5b6ee29
BH		 663 return -EOPNOTSUPP;
664
7850f63f 665 if (copy_from_user(&user_size,
a5b6ee29 666 useraddr + offsetof(struct ethtool_rxfh_indir, size),
7850f63f 667 sizeof(user_size)))
a5b6ee29
BH		 668 return -EFAULT;
669
278bc429 670 if (user_size != 0 && user_size != dev_size)
7850f63f
BH		 671 return -EINVAL;
672
673 indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
a5b6ee29
BH		 674 if (!indir)
675 return -ENOMEM;
676
7850f63f 677 rx_rings.cmd = ETHTOOL_GRXRINGS;
c03a14e8 678 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
7850f63f
BH		 679 if (ret)
680 goto out;
278bc429
BH		 681
682 if (user_size == 0) {
683 for (i = 0; i < dev_size; i++)
684 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
685 } else {
3de0b592
VD		 686 ret = ethtool_copy_validate_indir(indir,
687 useraddr + ringidx_offset,
688 &rx_rings,
689 dev_size);
690 if (ret)
691 goto out;
692 }
693
892311f6 694 ret = ops->set_rxfh(dev, indir, NULL, ETH_RSS_HASH_NO_CHANGE);
3de0b592
VD		 695
696out:
697 kfree(indir);
698 return ret;
699}
700
701static noinline_for_stack int ethtool_get_rxfh(struct net_device *dev,
702 void __user *useraddr)
703{
704 int ret;
705 const struct ethtool_ops *ops = dev->ethtool_ops;
f062a384 706 u32 user_indir_size, user_key_size;
3de0b592 707 u32 dev_indir_size = 0, dev_key_size = 0;
f062a384 708 struct ethtool_rxfh rxfh;
3de0b592 709 u32 total_size;
f062a384 710 u32 indir_bytes;
3de0b592 711 u32 *indir = NULL;
892311f6 712 u8 dev_hfunc = 0;
3de0b592
VD		 713 u8 *hkey = NULL;
714 u8 *rss_config;
715
892311f6 716 if (!ops->get_rxfh)
3de0b592
VD		 717 return -EOPNOTSUPP;
718
719 if (ops->get_rxfh_indir_size)
720 dev_indir_size = ops->get_rxfh_indir_size(dev);
3de0b592
VD		 721 if (ops->get_rxfh_key_size)
722 dev_key_size = ops->get_rxfh_key_size(dev);
723
f062a384 724 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
3de0b592 725 return -EFAULT;
f062a384
BH		 726 user_indir_size = rxfh.indir_size;
727 user_key_size = rxfh.key_size;
3de0b592 728
f062a384 729 /* Check that reserved fields are 0 for now */
892311f6
EP		 730 if (rxfh.rss_context || rxfh.rsvd8[0] || rxfh.rsvd8[1] ||
731 rxfh.rsvd8[2] || rxfh.rsvd32)
f062a384
BH		 732 return -EINVAL;
733
734 rxfh.indir_size = dev_indir_size;
735 rxfh.key_size = dev_key_size;
736 if (copy_to_user(useraddr, &rxfh, sizeof(rxfh)))
3de0b592
VD		 737 return -EFAULT;
738
3de0b592
VD		 739 if ((user_indir_size && (user_indir_size != dev_indir_size)) ||
740 (user_key_size && (user_key_size != dev_key_size)))
741 return -EINVAL;
742
743 indir_bytes = user_indir_size * sizeof(indir[0]);
744 total_size = indir_bytes + user_key_size;
745 rss_config = kzalloc(total_size, GFP_USER);
746 if (!rss_config)
747 return -ENOMEM;
748
749 if (user_indir_size)
750 indir = (u32 *)rss_config;
751
752 if (user_key_size)
753 hkey = rss_config + indir_bytes;
754
892311f6
EP		 755 ret = dev->ethtool_ops->get_rxfh(dev, indir, hkey, &dev_hfunc);
756 if (ret)
757 goto out;
3de0b592 758
892311f6
EP		 759 if (copy_to_user(useraddr + offsetof(struct ethtool_rxfh, hfunc),
760 &dev_hfunc, sizeof(rxfh.hfunc))) {
761 ret = -EFAULT;
762 } else if (copy_to_user(useraddr +
763 offsetof(struct ethtool_rxfh, rss_config[0]),
764 rss_config, total_size)) {
765 ret = -EFAULT;
766 }
767out:
3de0b592
VD		 768 kfree(rss_config);
769
770 return ret;
771}
772
773static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev,
774 void __user *useraddr)
775{
776 int ret;
777 const struct ethtool_ops *ops = dev->ethtool_ops;
778 struct ethtool_rxnfc rx_rings;
f062a384
BH		 779 struct ethtool_rxfh rxfh;
780 u32 dev_indir_size = 0, dev_key_size = 0, i;
3de0b592
VD		 781 u32 *indir = NULL, indir_bytes = 0;
782 u8 *hkey = NULL;
783 u8 *rss_config;
3de0b592
VD		 784 u32 rss_cfg_offset = offsetof(struct ethtool_rxfh, rss_config[0]);
785
892311f6 786 if (!ops->get_rxnfc || !ops->set_rxfh)
3de0b592
VD		 787 return -EOPNOTSUPP;
788
789 if (ops->get_rxfh_indir_size)
790 dev_indir_size = ops->get_rxfh_indir_size(dev);
3de0b592
VD		 791 if (ops->get_rxfh_key_size)
792 dev_key_size = dev->ethtool_ops->get_rxfh_key_size(dev);
3de0b592 793
f062a384 794 if (copy_from_user(&rxfh, useraddr, sizeof(rxfh)))
3de0b592
VD		 795 return -EFAULT;
796
f062a384 797 /* Check that reserved fields are 0 for now */
892311f6
EP		 798 if (rxfh.rss_context || rxfh.rsvd8[0] || rxfh.rsvd8[1] ||
799 rxfh.rsvd8[2] || rxfh.rsvd32)
f062a384
BH		 800 return -EINVAL;
801
892311f6
EP		 802 /* If either indir, hash key or function is valid, proceed further.
803 * Must request at least one change: indir size, hash key or function.
3de0b592 804 */
f062a384
BH		 805 if ((rxfh.indir_size &&
806 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE &&
807 rxfh.indir_size != dev_indir_size) ||
808 (rxfh.key_size && (rxfh.key_size != dev_key_size)) ||
809 (rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE &&
892311f6 810 rxfh.key_size == 0 && rxfh.hfunc == ETH_RSS_HASH_NO_CHANGE))
3de0b592
VD		 811 return -EINVAL;
812
f062a384 813 if (rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE)
3de0b592
VD		 814 indir_bytes = dev_indir_size * sizeof(indir[0]);
815
f062a384 816 rss_config = kzalloc(indir_bytes + rxfh.key_size, GFP_USER);
3de0b592
VD		 817 if (!rss_config)
818 return -ENOMEM;
819
820 rx_rings.cmd = ETHTOOL_GRXRINGS;
821 ret = ops->get_rxnfc(dev, &rx_rings, NULL);
822 if (ret)
823 goto out;
824
f062a384
BH		 825 /* rxfh.indir_size == 0 means reset the indir table to default.
826 * rxfh.indir_size == ETH_RXFH_INDIR_NO_CHANGE means leave it unchanged.
3de0b592 827 */
f062a384
BH		 828 if (rxfh.indir_size &&
829 rxfh.indir_size != ETH_RXFH_INDIR_NO_CHANGE) {
3de0b592
VD		 830 indir = (u32 *)rss_config;
831 ret = ethtool_copy_validate_indir(indir,
832 useraddr + rss_cfg_offset,
833 &rx_rings,
f062a384 834 rxfh.indir_size);
3de0b592 835 if (ret)
7850f63f 836 goto out;
f062a384 837 } else if (rxfh.indir_size == 0) {
3de0b592
VD		 838 indir = (u32 *)rss_config;
839 for (i = 0; i < dev_indir_size; i++)
840 indir[i] = ethtool_rxfh_indir_default(i, rx_rings.data);
841 }
278bc429 842
f062a384 843 if (rxfh.key_size) {
3de0b592
VD		 844 hkey = rss_config + indir_bytes;
845 if (copy_from_user(hkey,
846 useraddr + rss_cfg_offset + indir_bytes,
f062a384 847 rxfh.key_size)) {
3de0b592
VD		 848 ret = -EFAULT;
849 goto out;
278bc429 850 }
7850f63f
BH		 851 }
852
892311f6 853 ret = ops->set_rxfh(dev, indir, hkey, rxfh.hfunc);
a5b6ee29
BH		 854
855out:
3de0b592 856 kfree(rss_config);
a5b6ee29
BH		 857 return ret;
858}
859
1da177e4
LT		 860static int ethtool_get_regs(struct net_device *dev, char __user *useraddr)
861{
862 struct ethtool_regs regs;
76fd8593 863 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4
LT		 864 void *regbuf;
865 int reglen, ret;
866
867 if (!ops->get_regs || !ops->get_regs_len)
868 return -EOPNOTSUPP;
869
870 if (copy_from_user(&regs, useraddr, sizeof(regs)))
871 return -EFAULT;
872
873 reglen = ops->get_regs_len(dev);
874 if (regs.len > reglen)
875 regs.len = reglen;
876
b7c7d01a 877 regbuf = vzalloc(reglen);
67ae7cf1 878 if (reglen && !regbuf)
1da177e4
LT		 879 return -ENOMEM;
880
881 ops->get_regs(dev, &regs, regbuf);
882
883 ret = -EFAULT;
884 if (copy_to_user(useraddr, &regs, sizeof(regs)))
885 goto out;
886 useraddr += offsetof(struct ethtool_regs, data);
67ae7cf1 887 if (regbuf && copy_to_user(useraddr, regbuf, regs.len))
1da177e4
LT		 888 goto out;
889 ret = 0;
890
891 out:
a77f5db3 892 vfree(regbuf);
1da177e4
LT		 893 return ret;
894}
895
d73d3a8c
BH		 896static int ethtool_reset(struct net_device *dev, char __user *useraddr)
897{
898 struct ethtool_value reset;
899 int ret;
900
901 if (!dev->ethtool_ops->reset)
902 return -EOPNOTSUPP;
903
904 if (copy_from_user(&reset, useraddr, sizeof(reset)))
905 return -EFAULT;
906
907 ret = dev->ethtool_ops->reset(dev, &reset.data);
908 if (ret)
909 return ret;
910
911 if (copy_to_user(useraddr, &reset, sizeof(reset)))
912 return -EFAULT;
913 return 0;
914}
915
1da177e4
LT		 916static int ethtool_get_wol(struct net_device *dev, char __user *useraddr)
917{
8e557421 918 struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
1da177e4
LT		 919
920 if (!dev->ethtool_ops->get_wol)
921 return -EOPNOTSUPP;
922
923 dev->ethtool_ops->get_wol(dev, &wol);
924
925 if (copy_to_user(useraddr, &wol, sizeof(wol)))
926 return -EFAULT;
927 return 0;
928}
929
930static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
931{
932 struct ethtool_wolinfo wol;
933
934 if (!dev->ethtool_ops->set_wol)
935 return -EOPNOTSUPP;
936
937 if (copy_from_user(&wol, useraddr, sizeof(wol)))
938 return -EFAULT;
939
940 return dev->ethtool_ops->set_wol(dev, &wol);
941}
942
80f12ecc
YM		 943static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
944{
945 struct ethtool_eee edata;
946 int rc;
947
948 if (!dev->ethtool_ops->get_eee)
949 return -EOPNOTSUPP;
950
951 memset(&edata, 0, sizeof(struct ethtool_eee));
952 edata.cmd = ETHTOOL_GEEE;
953 rc = dev->ethtool_ops->get_eee(dev, &edata);
954
955 if (rc)
956 return rc;
957
958 if (copy_to_user(useraddr, &edata, sizeof(edata)))
959 return -EFAULT;
960
961 return 0;
962}
963
964static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
965{
966 struct ethtool_eee edata;
967
968 if (!dev->ethtool_ops->set_eee)
969 return -EOPNOTSUPP;
970
971 if (copy_from_user(&edata, useraddr, sizeof(edata)))
972 return -EFAULT;
973
974 return dev->ethtool_ops->set_eee(dev, &edata);
975}
976
1da177e4
LT		 977static int ethtool_nway_reset(struct net_device *dev)
978{
979 if (!dev->ethtool_ops->nway_reset)
980 return -EOPNOTSUPP;
981
982 return dev->ethtool_ops->nway_reset(dev);
983}
984
e596e6e4
BH		 985static int ethtool_get_link(struct net_device *dev, char __user *useraddr)
986{
987 struct ethtool_value edata = { .cmd = ETHTOOL_GLINK };
988
989 if (!dev->ethtool_ops->get_link)
990 return -EOPNOTSUPP;
991
992 edata.data = netif_running(dev) && dev->ethtool_ops->get_link(dev);
993
994 if (copy_to_user(useraddr, &edata, sizeof(edata)))
995 return -EFAULT;
996 return 0;
997}
998
081d094e
BH		 999static int ethtool_get_any_eeprom(struct net_device *dev, void __user *useraddr,
1000 int (*getter)(struct net_device *,
1001 struct ethtool_eeprom *, u8 *),
1002 u32 total_len)
1da177e4
LT		 1003{
1004 struct ethtool_eeprom eeprom;
b131dd5d
MSB		 1005 void __user *userbuf = useraddr + sizeof(eeprom);
1006 u32 bytes_remaining;
1da177e4 1007 u8 *data;
b131dd5d 1008 int ret = 0;
1da177e4 1009
1da177e4
LT		 1010 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1011 return -EFAULT;
1012
1013 /* Check for wrap and zero */
1014 if (eeprom.offset + eeprom.len <= eeprom.offset)
1015 return -EINVAL;
1016
1017 /* Check for exceeding total eeprom len */
081d094e 1018 if (eeprom.offset + eeprom.len > total_len)
1da177e4
LT		 1019 return -EINVAL;
1020
b131dd5d 1021 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 1022 if (!data)
1023 return -ENOMEM;
1024
b131dd5d
MSB		 1025 bytes_remaining = eeprom.len;
1026 while (bytes_remaining > 0) {
1027 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1028
081d094e 1029 ret = getter(dev, &eeprom, data);
b131dd5d
MSB		 1030 if (ret)
1031 break;
1032 if (copy_to_user(userbuf, data, eeprom.len)) {
1033 ret = -EFAULT;
1034 break;
1035 }
1036 userbuf += eeprom.len;
1037 eeprom.offset += eeprom.len;
1038 bytes_remaining -= eeprom.len;
1039 }
1da177e4 1040
c5835df9
MSB		 1041 eeprom.len = userbuf - (useraddr + sizeof(eeprom));
1042 eeprom.offset -= eeprom.len;
1043 if (copy_to_user(useraddr, &eeprom, sizeof(eeprom)))
1044 ret = -EFAULT;
1045
1da177e4
LT		 1046 kfree(data);
1047 return ret;
1048}
1049
081d094e
BH		 1050static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
1051{
1052 const struct ethtool_ops *ops = dev->ethtool_ops;
1053
e0fb6fb6
GR		 1054 if (!ops->get_eeprom || !ops->get_eeprom_len ||
1055 !ops->get_eeprom_len(dev))
081d094e
BH		 1056 return -EOPNOTSUPP;
1057
1058 return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom,
1059 ops->get_eeprom_len(dev));
1060}
1061
1da177e4
LT		 1062static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
1063{
1064 struct ethtool_eeprom eeprom;
76fd8593 1065 const struct ethtool_ops *ops = dev->ethtool_ops;
b131dd5d
MSB		 1066 void __user *userbuf = useraddr + sizeof(eeprom);
1067 u32 bytes_remaining;
1da177e4 1068 u8 *data;
b131dd5d 1069 int ret = 0;
1da177e4 1070
e0fb6fb6
GR		 1071 if (!ops->set_eeprom || !ops->get_eeprom_len ||
1072 !ops->get_eeprom_len(dev))
1da177e4
LT		 1073 return -EOPNOTSUPP;
1074
1075 if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))
1076 return -EFAULT;
1077
1078 /* Check for wrap and zero */
1079 if (eeprom.offset + eeprom.len <= eeprom.offset)
1080 return -EINVAL;
1081
1082 /* Check for exceeding total eeprom len */
1083 if (eeprom.offset + eeprom.len > ops->get_eeprom_len(dev))
1084 return -EINVAL;
1085
b131dd5d 1086 data = kmalloc(PAGE_SIZE, GFP_USER);
1da177e4
LT		 1087 if (!data)
1088 return -ENOMEM;
1089
b131dd5d
MSB		 1090 bytes_remaining = eeprom.len;
1091 while (bytes_remaining > 0) {
1092 eeprom.len = min(bytes_remaining, (u32)PAGE_SIZE);
1093
1094 if (copy_from_user(data, userbuf, eeprom.len)) {
1095 ret = -EFAULT;
1096 break;
1097 }
1098 ret = ops->set_eeprom(dev, &eeprom, data);
1099 if (ret)
1100 break;
1101 userbuf += eeprom.len;
1102 eeprom.offset += eeprom.len;
1103 bytes_remaining -= eeprom.len;
1104 }
1da177e4 1105
1da177e4
LT		 1106 kfree(data);
1107 return ret;
1108}
1109
97f8aefb 1110static noinline_for_stack int ethtool_get_coalesce(struct net_device *dev,
1111 void __user *useraddr)
1da177e4 1112{
8e557421 1113 struct ethtool_coalesce coalesce = { .cmd = ETHTOOL_GCOALESCE };
1da177e4
LT		 1114
1115 if (!dev->ethtool_ops->get_coalesce)
1116 return -EOPNOTSUPP;
1117
1118 dev->ethtool_ops->get_coalesce(dev, &coalesce);
1119
1120 if (copy_to_user(useraddr, &coalesce, sizeof(coalesce)))
1121 return -EFAULT;
1122 return 0;
1123}
1124
97f8aefb 1125static noinline_for_stack int ethtool_set_coalesce(struct net_device *dev,
1126 void __user *useraddr)
1da177e4
LT		 1127{
1128 struct ethtool_coalesce coalesce;
1129
fa04ae5c 1130 if (!dev->ethtool_ops->set_coalesce)
1da177e4
LT		 1131 return -EOPNOTSUPP;
1132
1133 if (copy_from_user(&coalesce, useraddr, sizeof(coalesce)))
1134 return -EFAULT;
1135
1136 return dev->ethtool_ops->set_coalesce(dev, &coalesce);
1137}
1138
1139static int ethtool_get_ringparam(struct net_device *dev, void __user *useraddr)
1140{
8e557421 1141 struct ethtool_ringparam ringparam = { .cmd = ETHTOOL_GRINGPARAM };
1da177e4
LT		 1142
1143 if (!dev->ethtool_ops->get_ringparam)
1144 return -EOPNOTSUPP;
1145
1146 dev->ethtool_ops->get_ringparam(dev, &ringparam);
1147
1148 if (copy_to_user(useraddr, &ringparam, sizeof(ringparam)))
1149 return -EFAULT;
1150 return 0;
1151}
1152
1153static int ethtool_set_ringparam(struct net_device *dev, void __user *useraddr)
1154{
1155 struct ethtool_ringparam ringparam;
1156
1157 if (!dev->ethtool_ops->set_ringparam)
1158 return -EOPNOTSUPP;
1159
1160 if (copy_from_user(&ringparam, useraddr, sizeof(ringparam)))
1161 return -EFAULT;
1162
1163 return dev->ethtool_ops->set_ringparam(dev, &ringparam);
1164}
1165
8b5933c3 1166static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
1167 void __user *useraddr)
1168{
1169 struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
1170
1171 if (!dev->ethtool_ops->get_channels)
1172 return -EOPNOTSUPP;
1173
1174 dev->ethtool_ops->get_channels(dev, &channels);
1175
1176 if (copy_to_user(useraddr, &channels, sizeof(channels)))
1177 return -EFAULT;
1178 return 0;
1179}
1180
1181static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
1182 void __user *useraddr)
1183{
1184 struct ethtool_channels channels;
1185
1186 if (!dev->ethtool_ops->set_channels)
1187 return -EOPNOTSUPP;
1188
1189 if (copy_from_user(&channels, useraddr, sizeof(channels)))
1190 return -EFAULT;
1191
1192 return dev->ethtool_ops->set_channels(dev, &channels);
1193}
1194
1da177e4
LT		 1195static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
1196{
1197 struct ethtool_pauseparam pauseparam = { ETHTOOL_GPAUSEPARAM };
1198
1199 if (!dev->ethtool_ops->get_pauseparam)
1200 return -EOPNOTSUPP;
1201
1202 dev->ethtool_ops->get_pauseparam(dev, &pauseparam);
1203
1204 if (copy_to_user(useraddr, &pauseparam, sizeof(pauseparam)))
1205 return -EFAULT;
1206 return 0;
1207}
1208
1209static int ethtool_set_pauseparam(struct net_device *dev, void __user *useraddr)
1210{
1211 struct ethtool_pauseparam pauseparam;
1212
e1b90c41 1213 if (!dev->ethtool_ops->set_pauseparam)
1da177e4
LT		 1214 return -EOPNOTSUPP;
1215
1216 if (copy_from_user(&pauseparam, useraddr, sizeof(pauseparam)))
1217 return -EFAULT;
1218
1219 return dev->ethtool_ops->set_pauseparam(dev, &pauseparam);
1220}
1221
1da177e4
LT		 1222static int ethtool_self_test(struct net_device *dev, char __user *useraddr)
1223{
1224 struct ethtool_test test;
76fd8593 1225 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1226 u64 *data;
ff03d49f 1227 int ret, test_len;
1da177e4 1228
a9828ec6 1229 if (!ops->self_test || !ops->get_sset_count)
1da177e4
LT		 1230 return -EOPNOTSUPP;
1231
a9828ec6 1232 test_len = ops->get_sset_count(dev, ETH_SS_TEST);
ff03d49f
JG		 1233 if (test_len < 0)
1234 return test_len;
1235 WARN_ON(test_len == 0);
1236
1da177e4
LT		 1237 if (copy_from_user(&test, useraddr, sizeof(test)))
1238 return -EFAULT;
1239
ff03d49f
JG		 1240 test.len = test_len;
1241 data = kmalloc(test_len * sizeof(u64), GFP_USER);
1da177e4
LT		 1242 if (!data)
1243 return -ENOMEM;
1244
1245 ops->self_test(dev, &test, data);
1246
1247 ret = -EFAULT;
1248 if (copy_to_user(useraddr, &test, sizeof(test)))
1249 goto out;
1250 useraddr += sizeof(test);
1251 if (copy_to_user(useraddr, data, test.len * sizeof(u64)))
1252 goto out;
1253 ret = 0;
1254
1255 out:
1256 kfree(data);
1257 return ret;
1258}
1259
1260static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
1261{
1262 struct ethtool_gstrings gstrings;
1da177e4
LT		 1263 u8 *data;
1264 int ret;
1265
1da177e4
LT		 1266 if (copy_from_user(&gstrings, useraddr, sizeof(gstrings)))
1267 return -EFAULT;
1268
340ae165 1269 ret = __ethtool_get_sset_count(dev, gstrings.string_set);
a9828ec6
BH		 1270 if (ret < 0)
1271 return ret;
1272
1273 gstrings.len = ret;
1da177e4
LT		 1274
1275 data = kmalloc(gstrings.len * ETH_GSTRING_LEN, GFP_USER);
1276 if (!data)
1277 return -ENOMEM;
1278
340ae165 1279 __ethtool_get_strings(dev, gstrings.string_set, data);
1da177e4
LT		 1280
1281 ret = -EFAULT;
1282 if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
1283 goto out;
1284 useraddr += sizeof(gstrings);
1285 if (copy_to_user(useraddr, data, gstrings.len * ETH_GSTRING_LEN))
1286 goto out;
1287 ret = 0;
1288
340ae165 1289out:
1da177e4
LT		 1290 kfree(data);
1291 return ret;
1292}
1293
1294static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
1295{
1296 struct ethtool_value id;
68f512f2 1297 static bool busy;
c03a14e8 1298 const struct ethtool_ops *ops = dev->ethtool_ops;
68f512f2 1299 int rc;
1da177e4 1300
c03a14e8 1301 if (!ops->set_phys_id)
1da177e4
LT		 1302 return -EOPNOTSUPP;
1303
68f512f2
BH		 1304 if (busy)
1305 return -EBUSY;
1306
1da177e4
LT		 1307 if (copy_from_user(&id, useraddr, sizeof(id)))
1308 return -EFAULT;
1309
c03a14e8 1310 rc = ops->set_phys_id(dev, ETHTOOL_ID_ACTIVE);
fce55922 1311 if (rc < 0)
68f512f2
BH		 1312 return rc;
1313
1314 /* Drop the RTNL lock while waiting, but prevent reentry or
1315 * removal of the device.
1316 */
1317 busy = true;
1318 dev_hold(dev);
1319 rtnl_unlock();
1320
1321 if (rc == 0) {
1322 /* Driver will handle this itself */
1323 schedule_timeout_interruptible(
143780c6 1324 id.data ? (id.data * HZ) : MAX_SCHEDULE_TIMEOUT);
68f512f2 1325 } else {
fce55922
AB		 1326 /* Driver expects to be called at twice the frequency in rc */
1327 int n = rc * 2, i, interval = HZ / n;
1328
1329 /* Count down seconds */
68f512f2 1330 do {
fce55922
AB		 1331 /* Count down iterations per second */
1332 i = n;
1333 do {
1334 rtnl_lock();
c03a14e8 1335 rc = ops->set_phys_id(dev,
fce55922
AB		 1336 (i & 1) ? ETHTOOL_ID_OFF : ETHTOOL_ID_ON);
1337 rtnl_unlock();
1338 if (rc)
1339 break;
1340 schedule_timeout_interruptible(interval);
1341 } while (!signal_pending(current) && --i != 0);
68f512f2
BH		 1342 } while (!signal_pending(current) &&
1343 (id.data == 0 || --id.data != 0));
1344 }
1345
1346 rtnl_lock();
1347 dev_put(dev);
1348 busy = false;
1349
c03a14e8 1350 (void) ops->set_phys_id(dev, ETHTOOL_ID_INACTIVE);
68f512f2 1351 return rc;
1da177e4
LT		 1352}
1353
1354static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
1355{
1356 struct ethtool_stats stats;
76fd8593 1357 const struct ethtool_ops *ops = dev->ethtool_ops;
1da177e4 1358 u64 *data;
ff03d49f 1359 int ret, n_stats;
1da177e4 1360
a9828ec6 1361 if (!ops->get_ethtool_stats || !ops->get_sset_count)
1da177e4
LT		 1362 return -EOPNOTSUPP;
1363
a9828ec6 1364 n_stats = ops->get_sset_count(dev, ETH_SS_STATS);
ff03d49f
JG		 1365 if (n_stats < 0)
1366 return n_stats;
1367 WARN_ON(n_stats == 0);
1368
1da177e4
LT		 1369 if (copy_from_user(&stats, useraddr, sizeof(stats)))
1370 return -EFAULT;
1371
ff03d49f
JG		 1372 stats.n_stats = n_stats;
1373 data = kmalloc(n_stats * sizeof(u64), GFP_USER);
1da177e4
LT		 1374 if (!data)
1375 return -ENOMEM;
1376
1377 ops->get_ethtool_stats(dev, &stats, data);
1378
1379 ret = -EFAULT;
1380 if (copy_to_user(useraddr, &stats, sizeof(stats)))
1381 goto out;
1382 useraddr += sizeof(stats);
1383 if (copy_to_user(useraddr, data, stats.n_stats * sizeof(u64)))
1384 goto out;
1385 ret = 0;
1386
1387 out:
1388 kfree(data);
1389 return ret;
1390}
1391
0bf0519d 1392static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
a6f9a705
JW		 1393{
1394 struct ethtool_perm_addr epaddr;
a6f9a705 1395
313674af 1396 if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
a6f9a705
JW		 1397 return -EFAULT;
1398
313674af
MW		 1399 if (epaddr.size < dev->addr_len)
1400 return -ETOOSMALL;
1401 epaddr.size = dev->addr_len;
a6f9a705 1402
a6f9a705 1403 if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
313674af 1404 return -EFAULT;
a6f9a705 1405 useraddr += sizeof(epaddr);
313674af
MW		 1406 if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
1407 return -EFAULT;
1408 return 0;
a6f9a705
JW		 1409}
1410
13c99b24
JG		 1411static int ethtool_get_value(struct net_device *dev, char __user *useraddr,
1412 u32 cmd, u32 (*actor)(struct net_device *))
3ae7c0b2 1413{
8e557421 1414 struct ethtool_value edata = { .cmd = cmd };
3ae7c0b2 1415
13c99b24 1416 if (!actor)
3ae7c0b2
JG		 1417 return -EOPNOTSUPP;
1418
13c99b24 1419 edata.data = actor(dev);
3ae7c0b2
JG		 1420
1421 if (copy_to_user(useraddr, &edata, sizeof(edata)))
1422 return -EFAULT;
1423 return 0;
1424}
1425
13c99b24
JG		 1426static int ethtool_set_value_void(struct net_device *dev, char __user *useraddr,
1427 void (*actor)(struct net_device *, u32))
3ae7c0b2
JG		 1428{
1429 struct ethtool_value edata;
1430
13c99b24 1431 if (!actor)
3ae7c0b2
JG		 1432 return -EOPNOTSUPP;
1433
1434 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1435 return -EFAULT;
1436
13c99b24 1437 actor(dev, edata.data);
339bf024
JG		 1438 return 0;
1439}
1440
13c99b24
JG		 1441static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
1442 int (*actor)(struct net_device *, u32))
339bf024
JG		 1443{
1444 struct ethtool_value edata;
1445
13c99b24 1446 if (!actor)
339bf024
JG		 1447 return -EOPNOTSUPP;
1448
1449 if (copy_from_user(&edata, useraddr, sizeof(edata)))
1450 return -EFAULT;
1451
13c99b24 1452 return actor(dev, edata.data);
339bf024
JG		 1453}
1454
97f8aefb 1455static noinline_for_stack int ethtool_flash_device(struct net_device *dev,
1456 char __user *useraddr)
05c6a8d7
AK		 1457{
1458 struct ethtool_flash efl;
1459
1460 if (copy_from_user(&efl, useraddr, sizeof(efl)))
1461 return -EFAULT;
1462
1463 if (!dev->ethtool_ops->flash_device)
1464 return -EOPNOTSUPP;
1465
786f5281
BH		 1466 efl.data[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
1467
05c6a8d7
AK		 1468 return dev->ethtool_ops->flash_device(dev, &efl);
1469}
1470
29dd54b7
AC		 1471static int ethtool_set_dump(struct net_device *dev,
1472 void __user *useraddr)
1473{
1474 struct ethtool_dump dump;
1475
1476 if (!dev->ethtool_ops->set_dump)
1477 return -EOPNOTSUPP;
1478
1479 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1480 return -EFAULT;
1481
1482 return dev->ethtool_ops->set_dump(dev, &dump);
1483}
1484
1485static int ethtool_get_dump_flag(struct net_device *dev,
1486 void __user *useraddr)
1487{
1488 int ret;
1489 struct ethtool_dump dump;
1490 const struct ethtool_ops *ops = dev->ethtool_ops;
1491
c03a14e8 1492 if (!ops->get_dump_flag)
29dd54b7
AC		 1493 return -EOPNOTSUPP;
1494
1495 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1496 return -EFAULT;
1497
1498 ret = ops->get_dump_flag(dev, &dump);
1499 if (ret)
1500 return ret;
1501
1502 if (copy_to_user(useraddr, &dump, sizeof(dump)))
1503 return -EFAULT;
1504 return 0;
1505}
1506
1507static int ethtool_get_dump_data(struct net_device *dev,
1508 void __user *useraddr)
1509{
1510 int ret;
1511 __u32 len;
1512 struct ethtool_dump dump, tmp;
1513 const struct ethtool_ops *ops = dev->ethtool_ops;
1514 void *data = NULL;
1515
c03a14e8 1516 if (!ops->get_dump_data || !ops->get_dump_flag)
29dd54b7
AC		 1517 return -EOPNOTSUPP;
1518
1519 if (copy_from_user(&dump, useraddr, sizeof(dump)))
1520 return -EFAULT;
1521
1522 memset(&tmp, 0, sizeof(tmp));
1523 tmp.cmd = ETHTOOL_GET_DUMP_FLAG;
1524 ret = ops->get_dump_flag(dev, &tmp);
1525 if (ret)
1526 return ret;
1527
c590b5e2 1528 len = min(tmp.len, dump.len);
29dd54b7
AC		 1529 if (!len)
1530 return -EFAULT;
1531
c590b5e2
MS		 1532 /* Don't ever let the driver think there's more space available
1533 * than it requested with .get_dump_flag().
1534 */
1535 dump.len = len;
1536
1537 /* Always allocate enough space to hold the whole thing so that the
1538 * driver does not need to check the length and bother with partial
1539 * dumping.
1540 */
29dd54b7
AC		 1541 data = vzalloc(tmp.len);
1542 if (!data)
1543 return -ENOMEM;
1544 ret = ops->get_dump_data(dev, &dump, data);
1545 if (ret)
1546 goto out;
1547
c590b5e2
MS		 1548 /* There are two sane possibilities:
1549 * 1. The driver's .get_dump_data() does not touch dump.len.
1550 * 2. Or it may set dump.len to how much it really writes, which
1551 * should be tmp.len (or len if it can do a partial dump).
1552 * In any case respond to userspace with the actual length of data
1553 * it's receiving.
1554 */
1555 WARN_ON(dump.len != len && dump.len != tmp.len);
1556 dump.len = len;
1557
29dd54b7
AC		 1558 if (copy_to_user(useraddr, &dump, sizeof(dump))) {
1559 ret = -EFAULT;
1560 goto out;
1561 }
1562 useraddr += offsetof(struct ethtool_dump, data);
1563 if (copy_to_user(useraddr, data, len))
1564 ret = -EFAULT;
1565out:
1566 vfree(data);
1567 return ret;
1568}
1569
c8f3a8c3
RC		 1570static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr)
1571{
1572 int err = 0;
1573 struct ethtool_ts_info info;
1574 const struct ethtool_ops *ops = dev->ethtool_ops;
1575 struct phy_device *phydev = dev->phydev;
1576
1577 memset(&info, 0, sizeof(info));
1578 info.cmd = ETHTOOL_GET_TS_INFO;
1579
1580 if (phydev && phydev->drv && phydev->drv->ts_info) {
c8f3a8c3 1581 err = phydev->drv->ts_info(phydev, &info);
c03a14e8 1582 } else if (ops->get_ts_info) {
c8f3a8c3 1583 err = ops->get_ts_info(dev, &info);
c8f3a8c3
RC		 1584 } else {
1585 info.so_timestamping =
1586 SOF_TIMESTAMPING_RX_SOFTWARE |
1587 SOF_TIMESTAMPING_SOFTWARE;
1588 info.phc_index = -1;
1589 }
1590
1591 if (err)
1592 return err;
1593
1594 if (copy_to_user(useraddr, &info, sizeof(info)))
1595 err = -EFAULT;
1596
1597 return err;
1598}
1599
2f438366
ES		 1600static int __ethtool_get_module_info(struct net_device *dev,
1601 struct ethtool_modinfo *modinfo)
1602{
1603 const struct ethtool_ops *ops = dev->ethtool_ops;
1604 struct phy_device *phydev = dev->phydev;
1605
1606 if (phydev && phydev->drv && phydev->drv->module_info)
1607 return phydev->drv->module_info(phydev, modinfo);
1608
1609 if (ops->get_module_info)
1610 return ops->get_module_info(dev, modinfo);
1611
1612 return -EOPNOTSUPP;
1613}
1614
41c3cb6d
SH		 1615static int ethtool_get_module_info(struct net_device *dev,
1616 void __user *useraddr)
1617{
1618 int ret;
1619 struct ethtool_modinfo modinfo;
41c3cb6d
SH		 1620
1621 if (copy_from_user(&modinfo, useraddr, sizeof(modinfo)))
1622 return -EFAULT;
1623
2f438366 1624 ret = __ethtool_get_module_info(dev, &modinfo);
41c3cb6d
SH		 1625 if (ret)
1626 return ret;
1627
1628 if (copy_to_user(useraddr, &modinfo, sizeof(modinfo)))
1629 return -EFAULT;
1630
1631 return 0;
1632}
1633
2f438366
ES		 1634static int __ethtool_get_module_eeprom(struct net_device *dev,
1635 struct ethtool_eeprom *ee, u8 *data)
1636{
1637 const struct ethtool_ops *ops = dev->ethtool_ops;
1638 struct phy_device *phydev = dev->phydev;
1639
1640 if (phydev && phydev->drv && phydev->drv->module_eeprom)
1641 return phydev->drv->module_eeprom(phydev, ee, data);
1642
1643 if (ops->get_module_eeprom)
1644 return ops->get_module_eeprom(dev, ee, data);
1645
1646 return -EOPNOTSUPP;
1647}
1648
41c3cb6d
SH		 1649static int ethtool_get_module_eeprom(struct net_device *dev,
1650 void __user *useraddr)
1651{
1652 int ret;
1653 struct ethtool_modinfo modinfo;
41c3cb6d 1654
2f438366 1655 ret = __ethtool_get_module_info(dev, &modinfo);
41c3cb6d
SH		 1656 if (ret)
1657 return ret;
1658
2f438366
ES		 1659 return ethtool_get_any_eeprom(dev, useraddr,
1660 __ethtool_get_module_eeprom,
41c3cb6d
SH		 1661 modinfo.eeprom_len);
1662}
1663
f0db9b07
GV		 1664static int ethtool_tunable_valid(const struct ethtool_tunable *tuna)
1665{
1666 switch (tuna->id) {
1667 case ETHTOOL_RX_COPYBREAK:
1255a505 1668 case ETHTOOL_TX_COPYBREAK:
f0db9b07
GV		 1669 if (tuna->len != sizeof(u32) ||
1670 tuna->type_id != ETHTOOL_TUNABLE_U32)
1671 return -EINVAL;
1672 break;
1673 default:
1674 return -EINVAL;
1675 }
1676
1677 return 0;
1678}
1679
1680static int ethtool_get_tunable(struct net_device *dev, void __user *useraddr)
1681{
1682 int ret;
1683 struct ethtool_tunable tuna;
1684 const struct ethtool_ops *ops = dev->ethtool_ops;
1685 void *data;
1686
1687 if (!ops->get_tunable)
1688 return -EOPNOTSUPP;
1689 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
1690 return -EFAULT;
1691 ret = ethtool_tunable_valid(&tuna);
1692 if (ret)
1693 return ret;
1694 data = kmalloc(tuna.len, GFP_USER);
1695 if (!data)
1696 return -ENOMEM;
1697 ret = ops->get_tunable(dev, &tuna, data);
1698 if (ret)
1699 goto out;
1700 useraddr += sizeof(tuna);
1701 ret = -EFAULT;
1702 if (copy_to_user(useraddr, data, tuna.len))
1703 goto out;
1704 ret = 0;
1705
1706out:
1707 kfree(data);
1708 return ret;
1709}
1710
1711static int ethtool_set_tunable(struct net_device *dev, void __user *useraddr)
1712{
1713 int ret;
1714 struct ethtool_tunable tuna;
1715 const struct ethtool_ops *ops = dev->ethtool_ops;
1716 void *data;
1717
1718 if (!ops->set_tunable)
1719 return -EOPNOTSUPP;
1720 if (copy_from_user(&tuna, useraddr, sizeof(tuna)))
1721 return -EFAULT;
1722 ret = ethtool_tunable_valid(&tuna);
1723 if (ret)
1724 return ret;
1725 data = kmalloc(tuna.len, GFP_USER);
1726 if (!data)
1727 return -ENOMEM;
1728 useraddr += sizeof(tuna);
1729 ret = -EFAULT;
1730 if (copy_from_user(data, useraddr, tuna.len))
1731 goto out;
1732 ret = ops->set_tunable(dev, &tuna, data);
1733
1734out:
1735 kfree(data);
1736 return ret;
1737}
1738
600fed5e 1739/* The main entry point in this file. Called from net/core/dev_ioctl.c */
1da177e4 1740
881d966b 1741int dev_ethtool(struct net *net, struct ifreq *ifr)
1da177e4 1742{
881d966b 1743 struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
1da177e4
LT		 1744 void __user *useraddr = ifr->ifr_data;
1745 u32 ethcmd;
1746 int rc;
b29d3145 1747 netdev_features_t old_features;
1da177e4 1748
1da177e4
LT		 1749 if (!dev || !netif_device_present(dev))
1750 return -ENODEV;
1751
97f8aefb 1752 if (copy_from_user(&ethcmd, useraddr, sizeof(ethcmd)))
1da177e4
LT		 1753 return -EFAULT;
1754
75f3123c 1755 /* Allow some commands to be done by anyone */
97f8aefb 1756 switch (ethcmd) {
0fdc100b 1757 case ETHTOOL_GSET:
75f3123c 1758 case ETHTOOL_GDRVINFO:
75f3123c 1759 case ETHTOOL_GMSGLVL:
2da45db2 1760 case ETHTOOL_GLINK:
75f3123c
SH		 1761 case ETHTOOL_GCOALESCE:
1762 case ETHTOOL_GRINGPARAM:
1763 case ETHTOOL_GPAUSEPARAM:
1764 case ETHTOOL_GRXCSUM:
1765 case ETHTOOL_GTXCSUM:
1766 case ETHTOOL_GSG:
f80400a2 1767 case ETHTOOL_GSSET_INFO:
75f3123c 1768 case ETHTOOL_GSTRINGS:
2da45db2 1769 case ETHTOOL_GSTATS:
75f3123c
SH		 1770 case ETHTOOL_GTSO:
1771 case ETHTOOL_GPERMADDR:
1772 case ETHTOOL_GUFO:
1773 case ETHTOOL_GGSO:
1cab819b 1774 case ETHTOOL_GGRO:
339bf024
JG		 1775 case ETHTOOL_GFLAGS:
1776 case ETHTOOL_GPFLAGS:
0853ad66 1777 case ETHTOOL_GRXFH:
59089d8d
SB		 1778 case ETHTOOL_GRXRINGS:
1779 case ETHTOOL_GRXCLSRLCNT:
1780 case ETHTOOL_GRXCLSRULE:
1781 case ETHTOOL_GRXCLSRLALL:
2da45db2 1782 case ETHTOOL_GRXFHINDIR:
3de0b592 1783 case ETHTOOL_GRSSH:
5455c699 1784 case ETHTOOL_GFEATURES:
2da45db2 1785 case ETHTOOL_GCHANNELS:
c8f3a8c3 1786 case ETHTOOL_GET_TS_INFO:
2da45db2 1787 case ETHTOOL_GEEE:
f0db9b07 1788 case ETHTOOL_GTUNABLE:
75f3123c
SH		 1789 break;
1790 default:
5e1fccc0 1791 if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
75f3123c
SH		 1792 return -EPERM;
1793 }
1794
97f8aefb 1795 if (dev->ethtool_ops->begin) {
1796 rc = dev->ethtool_ops->begin(dev);
1797 if (rc < 0)
1da177e4 1798 return rc;
97f8aefb 1799 }
d8a33ac4
SH		 1800 old_features = dev->features;
1801
1da177e4
LT		 1802 switch (ethcmd) {
1803 case ETHTOOL_GSET:
1804 rc = ethtool_get_settings(dev, useraddr);
1805 break;
1806 case ETHTOOL_SSET:
1807 rc = ethtool_set_settings(dev, useraddr);
1808 break;
1809 case ETHTOOL_GDRVINFO:
1810 rc = ethtool_get_drvinfo(dev, useraddr);
1da177e4
LT		 1811 break;
1812 case ETHTOOL_GREGS:
1813 rc = ethtool_get_regs(dev, useraddr);
1814 break;
1815 case ETHTOOL_GWOL:
1816 rc = ethtool_get_wol(dev, useraddr);
1817 break;
1818 case ETHTOOL_SWOL:
1819 rc = ethtool_set_wol(dev, useraddr);
1820 break;
1821 case ETHTOOL_GMSGLVL:
13c99b24
JG		 1822 rc = ethtool_get_value(dev, useraddr, ethcmd,
1823 dev->ethtool_ops->get_msglevel);
1da177e4
LT		 1824 break;
1825 case ETHTOOL_SMSGLVL:
13c99b24
JG		 1826 rc = ethtool_set_value_void(dev, useraddr,
1827 dev->ethtool_ops->set_msglevel);
1da177e4 1828 break;
80f12ecc
YM		 1829 case ETHTOOL_GEEE:
1830 rc = ethtool_get_eee(dev, useraddr);
1831 break;
1832 case ETHTOOL_SEEE:
1833 rc = ethtool_set_eee(dev, useraddr);
1834 break;
1da177e4
LT		 1835 case ETHTOOL_NWAY_RST:
1836 rc = ethtool_nway_reset(dev);
1837 break;
1838 case ETHTOOL_GLINK:
e596e6e4 1839 rc = ethtool_get_link(dev, useraddr);
1da177e4
LT		 1840 break;
1841 case ETHTOOL_GEEPROM:
1842 rc = ethtool_get_eeprom(dev, useraddr);
1843 break;
1844 case ETHTOOL_SEEPROM:
1845 rc = ethtool_set_eeprom(dev, useraddr);
1846 break;
1847 case ETHTOOL_GCOALESCE:
1848 rc = ethtool_get_coalesce(dev, useraddr);
1849 break;
1850 case ETHTOOL_SCOALESCE:
1851 rc = ethtool_set_coalesce(dev, useraddr);
1852 break;
1853 case ETHTOOL_GRINGPARAM:
1854 rc = ethtool_get_ringparam(dev, useraddr);
1855 break;
1856 case ETHTOOL_SRINGPARAM:
1857 rc = ethtool_set_ringparam(dev, useraddr);
1858 break;
1859 case ETHTOOL_GPAUSEPARAM:
1860 rc = ethtool_get_pauseparam(dev, useraddr);
1861 break;
1862 case ETHTOOL_SPAUSEPARAM:
1863 rc = ethtool_set_pauseparam(dev, useraddr);
1864 break;
1da177e4
LT		 1865 case ETHTOOL_TEST:
1866 rc = ethtool_self_test(dev, useraddr);
1867 break;
1868 case ETHTOOL_GSTRINGS:
1869 rc = ethtool_get_strings(dev, useraddr);
1870 break;
1871 case ETHTOOL_PHYS_ID:
1872 rc = ethtool_phys_id(dev, useraddr);
1873 break;
1874 case ETHTOOL_GSTATS:
1875 rc = ethtool_get_stats(dev, useraddr);
1876 break;
a6f9a705
JW		 1877 case ETHTOOL_GPERMADDR:
1878 rc = ethtool_get_perm_addr(dev, useraddr);
1879 break;
3ae7c0b2 1880 case ETHTOOL_GFLAGS:
13c99b24 1881 rc = ethtool_get_value(dev, useraddr, ethcmd,
bc5787c6 1882 __ethtool_get_flags);
3ae7c0b2
JG		 1883 break;
1884 case ETHTOOL_SFLAGS:
da8ac86c 1885 rc = ethtool_set_value(dev, useraddr, __ethtool_set_flags);
3ae7c0b2 1886 break;
339bf024 1887 case ETHTOOL_GPFLAGS:
13c99b24
JG		 1888 rc = ethtool_get_value(dev, useraddr, ethcmd,
1889 dev->ethtool_ops->get_priv_flags);
339bf024
JG		 1890 break;
1891 case ETHTOOL_SPFLAGS:
13c99b24
JG		 1892 rc = ethtool_set_value(dev, useraddr,
1893 dev->ethtool_ops->set_priv_flags);
339bf024 1894 break;
0853ad66 1895 case ETHTOOL_GRXFH:
59089d8d
SB		 1896 case ETHTOOL_GRXRINGS:
1897 case ETHTOOL_GRXCLSRLCNT:
1898 case ETHTOOL_GRXCLSRULE:
1899 case ETHTOOL_GRXCLSRLALL:
bf988435 1900 rc = ethtool_get_rxnfc(dev, ethcmd, useraddr);
0853ad66
SB		 1901 break;
1902 case ETHTOOL_SRXFH:
59089d8d
SB		 1903 case ETHTOOL_SRXCLSRLDEL:
1904 case ETHTOOL_SRXCLSRLINS:
bf988435 1905 rc = ethtool_set_rxnfc(dev, ethcmd, useraddr);
0853ad66 1906 break;
05c6a8d7
AK		 1907 case ETHTOOL_FLASHDEV:
1908 rc = ethtool_flash_device(dev, useraddr);
1909 break;
d73d3a8c
BH		 1910 case ETHTOOL_RESET:
1911 rc = ethtool_reset(dev, useraddr);
1912 break;
723b2f57
JG		 1913 case ETHTOOL_GSSET_INFO:
1914 rc = ethtool_get_sset_info(dev, useraddr);
1915 break;
a5b6ee29
BH		 1916 case ETHTOOL_GRXFHINDIR:
1917 rc = ethtool_get_rxfh_indir(dev, useraddr);
1918 break;
1919 case ETHTOOL_SRXFHINDIR:
1920 rc = ethtool_set_rxfh_indir(dev, useraddr);
1921 break;
3de0b592
VD		 1922 case ETHTOOL_GRSSH:
1923 rc = ethtool_get_rxfh(dev, useraddr);
1924 break;
1925 case ETHTOOL_SRSSH:
1926 rc = ethtool_set_rxfh(dev, useraddr);
1927 break;
5455c699
MM		 1928 case ETHTOOL_GFEATURES:
1929 rc = ethtool_get_features(dev, useraddr);
1930 break;
1931 case ETHTOOL_SFEATURES:
1932 rc = ethtool_set_features(dev, useraddr);
1933 break;
0a417704 1934 case ETHTOOL_GTXCSUM:
e83d360d 1935 case ETHTOOL_GRXCSUM:
0a417704
MM		 1936 case ETHTOOL_GSG:
1937 case ETHTOOL_GTSO:
1938 case ETHTOOL_GUFO:
1939 case ETHTOOL_GGSO:
1940 case ETHTOOL_GGRO:
1941 rc = ethtool_get_one_feature(dev, useraddr, ethcmd);
1942 break;
1943 case ETHTOOL_STXCSUM:
e83d360d 1944 case ETHTOOL_SRXCSUM:
0a417704
MM		 1945 case ETHTOOL_SSG:
1946 case ETHTOOL_STSO:
1947 case ETHTOOL_SUFO:
1948 case ETHTOOL_SGSO:
1949 case ETHTOOL_SGRO:
1950 rc = ethtool_set_one_feature(dev, useraddr, ethcmd);
1951 break;
8b5933c3 1952 case ETHTOOL_GCHANNELS:
1953 rc = ethtool_get_channels(dev, useraddr);
1954 break;
1955 case ETHTOOL_SCHANNELS:
1956 rc = ethtool_set_channels(dev, useraddr);
1957 break;
29dd54b7
AC		 1958 case ETHTOOL_SET_DUMP:
1959 rc = ethtool_set_dump(dev, useraddr);
1960 break;
1961 case ETHTOOL_GET_DUMP_FLAG:
1962 rc = ethtool_get_dump_flag(dev, useraddr);
1963 break;
1964 case ETHTOOL_GET_DUMP_DATA:
1965 rc = ethtool_get_dump_data(dev, useraddr);
1966 break;
c8f3a8c3
RC		 1967 case ETHTOOL_GET_TS_INFO:
1968 rc = ethtool_get_ts_info(dev, useraddr);
1969 break;
41c3cb6d
SH		 1970 case ETHTOOL_GMODULEINFO:
1971 rc = ethtool_get_module_info(dev, useraddr);
1972 break;
1973 case ETHTOOL_GMODULEEEPROM:
1974 rc = ethtool_get_module_eeprom(dev, useraddr);
1975 break;
f0db9b07
GV		 1976 case ETHTOOL_GTUNABLE:
1977 rc = ethtool_get_tunable(dev, useraddr);
1978 break;
1979 case ETHTOOL_STUNABLE:
1980 rc = ethtool_set_tunable(dev, useraddr);
1981 break;
1da177e4 1982 default:
61a44b9c 1983 rc = -EOPNOTSUPP;
1da177e4 1984 }
4ec93edb 1985
e71a4783 1986 if (dev->ethtool_ops->complete)
1da177e4 1987 dev->ethtool_ops->complete(dev);
d8a33ac4
SH		 1988
1989 if (old_features != dev->features)
1990 netdev_features_change(dev);
1991
1da177e4 1992 return rc;
1da177e4 1993}
Linux kernel - Deliverables
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