Commit | Line | Data |
---|---|---|
7db7d9f3 | 1 | // SPDX-License-Identifier: GPL-2.0 |
7a79d717 | 2 | /* Copyright (C) 2010-2019 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
3 | * |
4 | * Marek Lindner | |
c6c8fea2 SE |
5 | */ |
6 | ||
1e2c2a4f | 7 | #include "debugfs.h" |
c6c8fea2 SE |
8 | #include "main.h" |
9 | ||
a5dac4da | 10 | #include <asm/current.h> |
36dc621c | 11 | #include <linux/dcache.h> |
c6c8fea2 | 12 | #include <linux/debugfs.h> |
3e7514af | 13 | #include <linux/err.h> |
1e2c2a4f SE |
14 | #include <linux/errno.h> |
15 | #include <linux/export.h> | |
1e2c2a4f | 16 | #include <linux/fs.h> |
1e2c2a4f | 17 | #include <linux/netdevice.h> |
1e2c2a4f | 18 | #include <linux/printk.h> |
a5dac4da | 19 | #include <linux/sched.h> |
1e2c2a4f | 20 | #include <linux/seq_file.h> |
1e2c2a4f SE |
21 | #include <linux/stat.h> |
22 | #include <linux/stddef.h> | |
23 | #include <linux/stringify.h> | |
24 | #include <linux/sysfs.h> | |
94969208 | 25 | #include <net/net_namespace.h> |
c6c8fea2 | 26 | |
01d350d1 | 27 | #include "bat_algo.h" |
9bf8e4d4 | 28 | #include "bridge_loop_avoidance.h" |
2f1dfbe1 | 29 | #include "distributed-arp-table.h" |
1e2c2a4f SE |
30 | #include "gateway_client.h" |
31 | #include "icmp_socket.h" | |
ba412080 | 32 | #include "log.h" |
4e3e823b | 33 | #include "multicast.h" |
d56b1705 | 34 | #include "network-coding.h" |
1e2c2a4f SE |
35 | #include "originator.h" |
36 | #include "translation-table.h" | |
c6c8fea2 | 37 | |
9e466250 | 38 | static struct dentry *batadv_debugfs; |
c6c8fea2 | 39 | |
00caf6a2 SE |
40 | /** |
41 | * batadv_debugfs_deprecated() - Log use of deprecated batadv debugfs access | |
42 | * @file: file which was accessed | |
43 | * @alt: explanation what can be used as alternative | |
44 | */ | |
45 | void batadv_debugfs_deprecated(struct file *file, const char *alt) | |
46 | { | |
47 | struct dentry *dentry = file_dentry(file); | |
48 | const char *name = dentry->d_name.name; | |
49 | ||
50 | pr_warn_ratelimited(DEPRECATED "%s (pid %d) Use of debugfs file \"%s\".\n%s", | |
51 | current->comm, task_pid_nr(current), name, alt); | |
52 | } | |
53 | ||
9e466250 | 54 | static int batadv_algorithms_open(struct inode *inode, struct file *file) |
1c280471 | 55 | { |
00caf6a2 SE |
56 | batadv_debugfs_deprecated(file, |
57 | "Use genl command BATADV_CMD_GET_ROUTING_ALGOS instead\n"); | |
3193e8fd | 58 | return single_open(file, batadv_algo_seq_print_text, NULL); |
1c280471 ML |
59 | } |
60 | ||
7587405a ML |
61 | static int neighbors_open(struct inode *inode, struct file *file) |
62 | { | |
63 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
64 | ||
00caf6a2 SE |
65 | batadv_debugfs_deprecated(file, |
66 | "Use genl command BATADV_CMD_GET_NEIGHBORS instead\n"); | |
7587405a ML |
67 | return single_open(file, batadv_hardif_neigh_seq_print_text, net_dev); |
68 | } | |
69 | ||
9e466250 | 70 | static int batadv_originators_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
71 | { |
72 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 73 | |
00caf6a2 SE |
74 | batadv_debugfs_deprecated(file, |
75 | "Use genl command BATADV_CMD_GET_ORIGINATORS instead\n"); | |
7d211efc | 76 | return single_open(file, batadv_orig_seq_print_text, net_dev); |
c6c8fea2 SE |
77 | } |
78 | ||
cb1c92ec | 79 | /** |
7e9a8c2c SE |
80 | * batadv_originators_hardif_open() - handles debugfs output for the originator |
81 | * table of an hard interface | |
cb1c92ec SW |
82 | * @inode: inode pointer to debugfs file |
83 | * @file: pointer to the seq_file | |
7afcbbef SE |
84 | * |
85 | * Return: 0 on success or negative error number in case of failure | |
cb1c92ec SW |
86 | */ |
87 | static int batadv_originators_hardif_open(struct inode *inode, | |
88 | struct file *file) | |
89 | { | |
90 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 91 | |
00caf6a2 SE |
92 | batadv_debugfs_deprecated(file, |
93 | "Use genl command BATADV_CMD_GET_HARDIFS instead\n"); | |
cb1c92ec SW |
94 | return single_open(file, batadv_orig_hardif_seq_print_text, net_dev); |
95 | } | |
96 | ||
9e466250 | 97 | static int batadv_gateways_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
98 | { |
99 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 100 | |
00caf6a2 SE |
101 | batadv_debugfs_deprecated(file, |
102 | "Use genl command BATADV_CMD_GET_GATEWAYS instead\n"); | |
7cf06bc6 | 103 | return single_open(file, batadv_gw_client_seq_print_text, net_dev); |
c6c8fea2 SE |
104 | } |
105 | ||
9e466250 | 106 | static int batadv_transtable_global_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
107 | { |
108 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 109 | |
00caf6a2 SE |
110 | batadv_debugfs_deprecated(file, |
111 | "Use genl command BATADV_CMD_GET_TRANSTABLE_GLOBAL instead\n"); | |
08c36d3e | 112 | return single_open(file, batadv_tt_global_seq_print_text, net_dev); |
c6c8fea2 SE |
113 | } |
114 | ||
7a5cc242 | 115 | #ifdef CONFIG_BATMAN_ADV_BLA |
9e466250 | 116 | static int batadv_bla_claim_table_open(struct inode *inode, struct file *file) |
9bf8e4d4 SW |
117 | { |
118 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 119 | |
00caf6a2 SE |
120 | batadv_debugfs_deprecated(file, |
121 | "Use genl command BATADV_CMD_GET_BLA_CLAIM instead\n"); | |
08adf151 SE |
122 | return single_open(file, batadv_bla_claim_table_seq_print_text, |
123 | net_dev); | |
9bf8e4d4 | 124 | } |
536a23f1 SW |
125 | |
126 | static int batadv_bla_backbone_table_open(struct inode *inode, | |
127 | struct file *file) | |
128 | { | |
129 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 130 | |
00caf6a2 SE |
131 | batadv_debugfs_deprecated(file, |
132 | "Use genl command BATADV_CMD_GET_BLA_BACKBONE instead\n"); | |
536a23f1 SW |
133 | return single_open(file, batadv_bla_backbone_table_seq_print_text, |
134 | net_dev); | |
135 | } | |
136 | ||
7a5cc242 | 137 | #endif |
9bf8e4d4 | 138 | |
17224474 | 139 | #ifdef CONFIG_BATMAN_ADV_DAT |
2f1dfbe1 | 140 | /** |
be01dc33 | 141 | * batadv_dat_cache_open() - Prepare file handler for reads from dat_cache |
2f1dfbe1 AQ |
142 | * @inode: inode which was opened |
143 | * @file: file handle to be initialized | |
7afcbbef SE |
144 | * |
145 | * Return: 0 on success or negative error number in case of failure | |
2f1dfbe1 AQ |
146 | */ |
147 | static int batadv_dat_cache_open(struct inode *inode, struct file *file) | |
148 | { | |
149 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 150 | |
00caf6a2 SE |
151 | batadv_debugfs_deprecated(file, |
152 | "Use genl command BATADV_CMD_GET_DAT_CACHE instead\n"); | |
2f1dfbe1 AQ |
153 | return single_open(file, batadv_dat_cache_seq_print_text, net_dev); |
154 | } | |
17224474 | 155 | #endif |
2f1dfbe1 | 156 | |
9e466250 | 157 | static int batadv_transtable_local_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
158 | { |
159 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 160 | |
00caf6a2 SE |
161 | batadv_debugfs_deprecated(file, |
162 | "Use genl command BATADV_CMD_GET_TRANSTABLE_LOCAL instead\n"); | |
08c36d3e | 163 | return single_open(file, batadv_tt_local_seq_print_text, net_dev); |
c6c8fea2 SE |
164 | } |
165 | ||
7f223c0c | 166 | struct batadv_debuginfo { |
c6c8fea2 SE |
167 | struct attribute attr; |
168 | const struct file_operations fops; | |
169 | }; | |
170 | ||
d56b1705 MH |
171 | #ifdef CONFIG_BATMAN_ADV_NC |
172 | static int batadv_nc_nodes_open(struct inode *inode, struct file *file) | |
173 | { | |
174 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 175 | |
00caf6a2 | 176 | batadv_debugfs_deprecated(file, ""); |
d56b1705 MH |
177 | return single_open(file, batadv_nc_nodes_seq_print_text, net_dev); |
178 | } | |
179 | #endif | |
180 | ||
4e3e823b LL |
181 | #ifdef CONFIG_BATMAN_ADV_MCAST |
182 | /** | |
7e9a8c2c | 183 | * batadv_mcast_flags_open() - prepare file handler for reads from mcast_flags |
4e3e823b LL |
184 | * @inode: inode which was opened |
185 | * @file: file handle to be initialized | |
186 | * | |
187 | * Return: 0 on success or negative error number in case of failure | |
188 | */ | |
189 | static int batadv_mcast_flags_open(struct inode *inode, struct file *file) | |
190 | { | |
191 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
192 | ||
00caf6a2 SE |
193 | batadv_debugfs_deprecated(file, |
194 | "Use genl command BATADV_CMD_GET_MCAST_FLAGS instead\n"); | |
4e3e823b LL |
195 | return single_open(file, batadv_mcast_flags_seq_print_text, net_dev); |
196 | } | |
197 | #endif | |
198 | ||
347c80f0 | 199 | #define BATADV_DEBUGINFO(_name, _mode, _open) \ |
7f223c0c | 200 | struct batadv_debuginfo batadv_debuginfo_##_name = { \ |
121bdca0 SW |
201 | .attr = { \ |
202 | .name = __stringify(_name), \ | |
203 | .mode = _mode, \ | |
204 | }, \ | |
205 | .fops = { \ | |
206 | .owner = THIS_MODULE, \ | |
207 | .open = _open, \ | |
208 | .read = seq_read, \ | |
209 | .llseek = seq_lseek, \ | |
210 | .release = single_release, \ | |
211 | }, \ | |
2b64df20 | 212 | } |
c6c8fea2 | 213 | |
637fbd12 AQ |
214 | /* the following attributes are general and therefore they will be directly |
215 | * placed in the BATADV_DEBUGFS_SUBDIR subdirectory of debugfs | |
216 | */ | |
507b37cf | 217 | static BATADV_DEBUGINFO(routing_algos, 0444, batadv_algorithms_open); |
637fbd12 AQ |
218 | |
219 | static struct batadv_debuginfo *batadv_general_debuginfos[] = { | |
220 | &batadv_debuginfo_routing_algos, | |
221 | NULL, | |
222 | }; | |
223 | ||
224 | /* The following attributes are per soft interface */ | |
507b37cf SE |
225 | static BATADV_DEBUGINFO(neighbors, 0444, neighbors_open); |
226 | static BATADV_DEBUGINFO(originators, 0444, batadv_originators_open); | |
227 | static BATADV_DEBUGINFO(gateways, 0444, batadv_gateways_open); | |
228 | static BATADV_DEBUGINFO(transtable_global, 0444, batadv_transtable_global_open); | |
7a5cc242 | 229 | #ifdef CONFIG_BATMAN_ADV_BLA |
507b37cf SE |
230 | static BATADV_DEBUGINFO(bla_claim_table, 0444, batadv_bla_claim_table_open); |
231 | static BATADV_DEBUGINFO(bla_backbone_table, 0444, | |
536a23f1 | 232 | batadv_bla_backbone_table_open); |
7a5cc242 | 233 | #endif |
17224474 | 234 | #ifdef CONFIG_BATMAN_ADV_DAT |
507b37cf | 235 | static BATADV_DEBUGINFO(dat_cache, 0444, batadv_dat_cache_open); |
17224474 | 236 | #endif |
507b37cf | 237 | static BATADV_DEBUGINFO(transtable_local, 0444, batadv_transtable_local_open); |
d56b1705 | 238 | #ifdef CONFIG_BATMAN_ADV_NC |
507b37cf | 239 | static BATADV_DEBUGINFO(nc_nodes, 0444, batadv_nc_nodes_open); |
d56b1705 | 240 | #endif |
4e3e823b | 241 | #ifdef CONFIG_BATMAN_ADV_MCAST |
507b37cf | 242 | static BATADV_DEBUGINFO(mcast_flags, 0444, batadv_mcast_flags_open); |
4e3e823b | 243 | #endif |
c6c8fea2 | 244 | |
7f223c0c | 245 | static struct batadv_debuginfo *batadv_mesh_debuginfos[] = { |
7587405a | 246 | &batadv_debuginfo_neighbors, |
9e466250 SE |
247 | &batadv_debuginfo_originators, |
248 | &batadv_debuginfo_gateways, | |
249 | &batadv_debuginfo_transtable_global, | |
7a5cc242 | 250 | #ifdef CONFIG_BATMAN_ADV_BLA |
9e466250 | 251 | &batadv_debuginfo_bla_claim_table, |
536a23f1 | 252 | &batadv_debuginfo_bla_backbone_table, |
7a5cc242 | 253 | #endif |
17224474 | 254 | #ifdef CONFIG_BATMAN_ADV_DAT |
2f1dfbe1 | 255 | &batadv_debuginfo_dat_cache, |
17224474 | 256 | #endif |
9e466250 | 257 | &batadv_debuginfo_transtable_local, |
d56b1705 MH |
258 | #ifdef CONFIG_BATMAN_ADV_NC |
259 | &batadv_debuginfo_nc_nodes, | |
4e3e823b LL |
260 | #endif |
261 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
262 | &batadv_debuginfo_mcast_flags, | |
d56b1705 | 263 | #endif |
c6c8fea2 SE |
264 | NULL, |
265 | }; | |
266 | ||
5bc7c1eb SW |
267 | #define BATADV_HARDIF_DEBUGINFO(_name, _mode, _open) \ |
268 | struct batadv_debuginfo batadv_hardif_debuginfo_##_name = { \ | |
269 | .attr = { \ | |
270 | .name = __stringify(_name), \ | |
271 | .mode = _mode, \ | |
272 | }, \ | |
273 | .fops = { \ | |
274 | .owner = THIS_MODULE, \ | |
275 | .open = _open, \ | |
276 | .read = seq_read, \ | |
277 | .llseek = seq_lseek, \ | |
278 | .release = single_release, \ | |
279 | }, \ | |
2b64df20 | 280 | } |
aa143d28 | 281 | |
507b37cf | 282 | static BATADV_HARDIF_DEBUGINFO(originators, 0444, |
cb1c92ec | 283 | batadv_originators_hardif_open); |
5bc7c1eb SW |
284 | |
285 | static struct batadv_debuginfo *batadv_hardif_debuginfos[] = { | |
cb1c92ec | 286 | &batadv_hardif_debuginfo_originators, |
5bc7c1eb SW |
287 | NULL, |
288 | }; | |
289 | ||
ff15c27c SE |
290 | /** |
291 | * batadv_debugfs_init() - Initialize soft interface independent debugfs entries | |
292 | */ | |
40a072d7 | 293 | void batadv_debugfs_init(void) |
c6c8fea2 | 294 | { |
637fbd12 | 295 | struct batadv_debuginfo **bat_debug; |
1c280471 ML |
296 | struct dentry *file; |
297 | ||
54590e4d | 298 | batadv_debugfs = debugfs_create_dir(BATADV_DEBUGFS_SUBDIR, NULL); |
9e466250 SE |
299 | if (batadv_debugfs == ERR_PTR(-ENODEV)) |
300 | batadv_debugfs = NULL; | |
1c280471 | 301 | |
9e466250 | 302 | if (!batadv_debugfs) |
637fbd12 | 303 | goto err; |
1c280471 | 304 | |
637fbd12 AQ |
305 | for (bat_debug = batadv_general_debuginfos; *bat_debug; ++bat_debug) { |
306 | file = debugfs_create_file(((*bat_debug)->attr).name, | |
307 | S_IFREG | ((*bat_debug)->attr).mode, | |
308 | batadv_debugfs, NULL, | |
309 | &(*bat_debug)->fops); | |
310 | if (!file) { | |
311 | pr_err("Can't add general debugfs file: %s\n", | |
312 | ((*bat_debug)->attr).name); | |
313 | goto err; | |
314 | } | |
315 | } | |
1c280471 | 316 | |
1c280471 | 317 | return; |
637fbd12 AQ |
318 | err: |
319 | debugfs_remove_recursive(batadv_debugfs); | |
5bc7c1eb | 320 | batadv_debugfs = NULL; |
c6c8fea2 SE |
321 | } |
322 | ||
ff15c27c SE |
323 | /** |
324 | * batadv_debugfs_destroy() - Remove all debugfs entries | |
325 | */ | |
40a072d7 | 326 | void batadv_debugfs_destroy(void) |
c6c8fea2 | 327 | { |
3f87c423 AQ |
328 | debugfs_remove_recursive(batadv_debugfs); |
329 | batadv_debugfs = NULL; | |
c6c8fea2 SE |
330 | } |
331 | ||
5bc7c1eb | 332 | /** |
7e9a8c2c | 333 | * batadv_debugfs_add_hardif() - creates the base directory for a hard interface |
5bc7c1eb SW |
334 | * in debugfs. |
335 | * @hard_iface: hard interface which should be added. | |
7afcbbef SE |
336 | * |
337 | * Return: 0 on success or negative error number in case of failure | |
5bc7c1eb SW |
338 | */ |
339 | int batadv_debugfs_add_hardif(struct batadv_hard_iface *hard_iface) | |
340 | { | |
94969208 | 341 | struct net *net = dev_net(hard_iface->net_dev); |
5bc7c1eb SW |
342 | struct batadv_debuginfo **bat_debug; |
343 | struct dentry *file; | |
344 | ||
345 | if (!batadv_debugfs) | |
346 | goto out; | |
347 | ||
94969208 AL |
348 | if (net != &init_net) |
349 | return 0; | |
350 | ||
5bc7c1eb SW |
351 | hard_iface->debug_dir = debugfs_create_dir(hard_iface->net_dev->name, |
352 | batadv_debugfs); | |
353 | if (!hard_iface->debug_dir) | |
354 | goto out; | |
355 | ||
356 | for (bat_debug = batadv_hardif_debuginfos; *bat_debug; ++bat_debug) { | |
357 | file = debugfs_create_file(((*bat_debug)->attr).name, | |
358 | S_IFREG | ((*bat_debug)->attr).mode, | |
359 | hard_iface->debug_dir, | |
360 | hard_iface->net_dev, | |
361 | &(*bat_debug)->fops); | |
362 | if (!file) | |
363 | goto rem_attr; | |
364 | } | |
365 | ||
366 | return 0; | |
367 | rem_attr: | |
368 | debugfs_remove_recursive(hard_iface->debug_dir); | |
369 | hard_iface->debug_dir = NULL; | |
370 | out: | |
5bc7c1eb | 371 | return -ENOMEM; |
5bc7c1eb SW |
372 | } |
373 | ||
36dc621c SE |
374 | /** |
375 | * batadv_debugfs_rename_hardif() - Fix debugfs path for renamed hardif | |
376 | * @hard_iface: hard interface which was renamed | |
377 | */ | |
378 | void batadv_debugfs_rename_hardif(struct batadv_hard_iface *hard_iface) | |
379 | { | |
380 | const char *name = hard_iface->net_dev->name; | |
381 | struct dentry *dir; | |
382 | struct dentry *d; | |
383 | ||
384 | dir = hard_iface->debug_dir; | |
385 | if (!dir) | |
386 | return; | |
387 | ||
388 | d = debugfs_rename(dir->d_parent, dir, dir->d_parent, name); | |
389 | if (!d) | |
390 | pr_err("Can't rename debugfs dir to %s\n", name); | |
391 | } | |
392 | ||
5bc7c1eb | 393 | /** |
7e9a8c2c | 394 | * batadv_debugfs_del_hardif() - delete the base directory for a hard interface |
5bc7c1eb SW |
395 | * in debugfs. |
396 | * @hard_iface: hard interface which is deleted. | |
397 | */ | |
398 | void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface) | |
399 | { | |
94969208 AL |
400 | struct net *net = dev_net(hard_iface->net_dev); |
401 | ||
402 | if (net != &init_net) | |
403 | return; | |
404 | ||
5bc7c1eb SW |
405 | if (batadv_debugfs) { |
406 | debugfs_remove_recursive(hard_iface->debug_dir); | |
407 | hard_iface->debug_dir = NULL; | |
408 | } | |
409 | } | |
410 | ||
ff15c27c SE |
411 | /** |
412 | * batadv_debugfs_add_meshif() - Initialize interface dependent debugfs entries | |
413 | * @dev: netdev struct of the soft interface | |
414 | * | |
415 | * Return: 0 on success or negative error number in case of failure | |
416 | */ | |
40a072d7 | 417 | int batadv_debugfs_add_meshif(struct net_device *dev) |
c6c8fea2 | 418 | { |
56303d34 | 419 | struct batadv_priv *bat_priv = netdev_priv(dev); |
7f223c0c | 420 | struct batadv_debuginfo **bat_debug; |
94969208 | 421 | struct net *net = dev_net(dev); |
c6c8fea2 SE |
422 | struct dentry *file; |
423 | ||
9e466250 | 424 | if (!batadv_debugfs) |
c6c8fea2 SE |
425 | goto out; |
426 | ||
94969208 AL |
427 | if (net != &init_net) |
428 | return 0; | |
429 | ||
9e466250 | 430 | bat_priv->debug_dir = debugfs_create_dir(dev->name, batadv_debugfs); |
c6c8fea2 SE |
431 | if (!bat_priv->debug_dir) |
432 | goto out; | |
433 | ||
9039dc7e | 434 | if (batadv_socket_setup(bat_priv) < 0) |
5346c35e SE |
435 | goto rem_attr; |
436 | ||
9e466250 | 437 | if (batadv_debug_log_setup(bat_priv) < 0) |
5346c35e | 438 | goto rem_attr; |
c6c8fea2 | 439 | |
9e466250 | 440 | for (bat_debug = batadv_mesh_debuginfos; *bat_debug; ++bat_debug) { |
c6c8fea2 | 441 | file = debugfs_create_file(((*bat_debug)->attr).name, |
0aca2369 SE |
442 | S_IFREG | ((*bat_debug)->attr).mode, |
443 | bat_priv->debug_dir, | |
444 | dev, &(*bat_debug)->fops); | |
c6c8fea2 | 445 | if (!file) { |
3e34819e SE |
446 | batadv_err(dev, "Can't add debugfs file: %s/%s\n", |
447 | dev->name, ((*bat_debug)->attr).name); | |
c6c8fea2 SE |
448 | goto rem_attr; |
449 | } | |
450 | } | |
451 | ||
d56b1705 MH |
452 | if (batadv_nc_init_debugfs(bat_priv) < 0) |
453 | goto rem_attr; | |
454 | ||
c6c8fea2 SE |
455 | return 0; |
456 | rem_attr: | |
457 | debugfs_remove_recursive(bat_priv->debug_dir); | |
458 | bat_priv->debug_dir = NULL; | |
459 | out: | |
c6c8fea2 | 460 | return -ENOMEM; |
c6c8fea2 SE |
461 | } |
462 | ||
6da7be7d SE |
463 | /** |
464 | * batadv_debugfs_rename_meshif() - Fix debugfs path for renamed softif | |
465 | * @dev: net_device which was renamed | |
466 | */ | |
467 | void batadv_debugfs_rename_meshif(struct net_device *dev) | |
468 | { | |
469 | struct batadv_priv *bat_priv = netdev_priv(dev); | |
470 | const char *name = dev->name; | |
471 | struct dentry *dir; | |
472 | struct dentry *d; | |
473 | ||
474 | dir = bat_priv->debug_dir; | |
475 | if (!dir) | |
476 | return; | |
477 | ||
478 | d = debugfs_rename(dir->d_parent, dir, dir->d_parent, name); | |
479 | if (!d) | |
480 | pr_err("Can't rename debugfs dir to %s\n", name); | |
481 | } | |
482 | ||
ff15c27c SE |
483 | /** |
484 | * batadv_debugfs_del_meshif() - Remove interface dependent debugfs entries | |
485 | * @dev: netdev struct of the soft interface | |
486 | */ | |
40a072d7 | 487 | void batadv_debugfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 488 | { |
56303d34 | 489 | struct batadv_priv *bat_priv = netdev_priv(dev); |
94969208 AL |
490 | struct net *net = dev_net(dev); |
491 | ||
492 | if (net != &init_net) | |
493 | return; | |
c6c8fea2 | 494 | |
9e466250 | 495 | batadv_debug_log_cleanup(bat_priv); |
c6c8fea2 | 496 | |
9e466250 | 497 | if (batadv_debugfs) { |
c6c8fea2 SE |
498 | debugfs_remove_recursive(bat_priv->debug_dir); |
499 | bat_priv->debug_dir = NULL; | |
500 | } | |
501 | } |