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0046b040 | 1 | /* Copyright (C) 2010-2016 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
2 | * |
3 | * Marek Lindner | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of version 2 of the GNU General Public | |
7 | * License as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
c6c8fea2 SE |
16 | */ |
17 | ||
1e2c2a4f | 18 | #include "debugfs.h" |
c6c8fea2 SE |
19 | #include "main.h" |
20 | ||
1e2c2a4f | 21 | #include <linux/compiler.h> |
c6c8fea2 | 22 | #include <linux/debugfs.h> |
1e2c2a4f SE |
23 | #include <linux/device.h> |
24 | #include <linux/errno.h> | |
25 | #include <linux/export.h> | |
26 | #include <linux/fcntl.h> | |
27 | #include <linux/fs.h> | |
28 | #include <linux/jiffies.h> | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/poll.h> | |
33 | #include <linux/printk.h> | |
34 | #include <linux/sched.h> /* for linux/wait.h */ | |
35 | #include <linux/seq_file.h> | |
36 | #include <linux/slab.h> | |
37 | #include <linux/spinlock.h> | |
38 | #include <linux/stat.h> | |
39 | #include <linux/stddef.h> | |
40 | #include <linux/stringify.h> | |
41 | #include <linux/sysfs.h> | |
42 | #include <linux/types.h> | |
43 | #include <linux/uaccess.h> | |
44 | #include <linux/wait.h> | |
45 | #include <stdarg.h> | |
c6c8fea2 | 46 | |
9bf8e4d4 | 47 | #include "bridge_loop_avoidance.h" |
2f1dfbe1 | 48 | #include "distributed-arp-table.h" |
1e2c2a4f SE |
49 | #include "gateway_client.h" |
50 | #include "icmp_socket.h" | |
d56b1705 | 51 | #include "network-coding.h" |
1e2c2a4f SE |
52 | #include "originator.h" |
53 | #include "translation-table.h" | |
c6c8fea2 | 54 | |
9e466250 | 55 | static struct dentry *batadv_debugfs; |
c6c8fea2 SE |
56 | |
57 | #ifdef CONFIG_BATMAN_ADV_DEBUG | |
347c80f0 | 58 | #define BATADV_LOG_BUFF_MASK (batadv_log_buff_len - 1) |
c6c8fea2 | 59 | |
a8a0a62d SE |
60 | static const int batadv_log_buff_len = BATADV_LOG_BUF_LEN; |
61 | ||
0abf5d81 | 62 | static char *batadv_log_char_addr(struct batadv_priv_debug_log *debug_log, |
a8a0a62d SE |
63 | size_t idx) |
64 | { | |
65 | return &debug_log->log_buff[idx & BATADV_LOG_BUFF_MASK]; | |
66 | } | |
c6c8fea2 | 67 | |
0abf5d81 ML |
68 | static void batadv_emit_log_char(struct batadv_priv_debug_log *debug_log, |
69 | char c) | |
c6c8fea2 | 70 | { |
a8a0a62d SE |
71 | char *char_addr; |
72 | ||
73 | char_addr = batadv_log_char_addr(debug_log, debug_log->log_end); | |
74 | *char_addr = c; | |
c6c8fea2 SE |
75 | debug_log->log_end++; |
76 | ||
9e466250 SE |
77 | if (debug_log->log_end - debug_log->log_start > batadv_log_buff_len) |
78 | debug_log->log_start = debug_log->log_end - batadv_log_buff_len; | |
c6c8fea2 SE |
79 | } |
80 | ||
d3a547be | 81 | __printf(2, 3) |
0abf5d81 | 82 | static int batadv_fdebug_log(struct batadv_priv_debug_log *debug_log, |
56303d34 | 83 | const char *fmt, ...) |
c6c8fea2 | 84 | { |
c6c8fea2 SE |
85 | va_list args; |
86 | static char debug_log_buf[256]; | |
87 | char *p; | |
88 | ||
89 | if (!debug_log) | |
90 | return 0; | |
91 | ||
92 | spin_lock_bh(&debug_log->lock); | |
93 | va_start(args, fmt); | |
1299bdaa | 94 | vscnprintf(debug_log_buf, sizeof(debug_log_buf), fmt, args); |
c6c8fea2 SE |
95 | va_end(args); |
96 | ||
97 | for (p = debug_log_buf; *p != 0; p++) | |
9e466250 | 98 | batadv_emit_log_char(debug_log, *p); |
c6c8fea2 SE |
99 | |
100 | spin_unlock_bh(&debug_log->lock); | |
101 | ||
102 | wake_up(&debug_log->queue_wait); | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
56303d34 | 107 | int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...) |
c6c8fea2 SE |
108 | { |
109 | va_list args; | |
110 | char tmp_log_buf[256]; | |
111 | ||
112 | va_start(args, fmt); | |
113 | vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args); | |
9e466250 SE |
114 | batadv_fdebug_log(bat_priv->debug_log, "[%10u] %s", |
115 | jiffies_to_msecs(jiffies), tmp_log_buf); | |
c6c8fea2 SE |
116 | va_end(args); |
117 | ||
118 | return 0; | |
119 | } | |
120 | ||
9e466250 | 121 | static int batadv_log_open(struct inode *inode, struct file *file) |
c6c8fea2 | 122 | { |
bd5b80d5 SE |
123 | if (!try_module_get(THIS_MODULE)) |
124 | return -EBUSY; | |
125 | ||
c6c8fea2 SE |
126 | nonseekable_open(inode, file); |
127 | file->private_data = inode->i_private; | |
c6c8fea2 SE |
128 | return 0; |
129 | } | |
130 | ||
9e466250 | 131 | static int batadv_log_release(struct inode *inode, struct file *file) |
c6c8fea2 | 132 | { |
bd5b80d5 | 133 | module_put(THIS_MODULE); |
c6c8fea2 SE |
134 | return 0; |
135 | } | |
136 | ||
0abf5d81 | 137 | static int batadv_log_empty(struct batadv_priv_debug_log *debug_log) |
0aca2369 SE |
138 | { |
139 | return !(debug_log->log_start - debug_log->log_end); | |
140 | } | |
141 | ||
9e466250 SE |
142 | static ssize_t batadv_log_read(struct file *file, char __user *buf, |
143 | size_t count, loff_t *ppos) | |
c6c8fea2 | 144 | { |
56303d34 | 145 | struct batadv_priv *bat_priv = file->private_data; |
0abf5d81 | 146 | struct batadv_priv_debug_log *debug_log = bat_priv->debug_log; |
c6c8fea2 | 147 | int error, i = 0; |
a8a0a62d | 148 | char *char_addr; |
c6c8fea2 SE |
149 | char c; |
150 | ||
0aca2369 | 151 | if ((file->f_flags & O_NONBLOCK) && batadv_log_empty(debug_log)) |
c6c8fea2 SE |
152 | return -EAGAIN; |
153 | ||
16f14b45 | 154 | if (!buf) |
c6c8fea2 SE |
155 | return -EINVAL; |
156 | ||
157 | if (count == 0) | |
158 | return 0; | |
159 | ||
160 | if (!access_ok(VERIFY_WRITE, buf, count)) | |
161 | return -EFAULT; | |
162 | ||
163 | error = wait_event_interruptible(debug_log->queue_wait, | |
0aca2369 | 164 | (!batadv_log_empty(debug_log))); |
c6c8fea2 SE |
165 | |
166 | if (error) | |
167 | return error; | |
168 | ||
169 | spin_lock_bh(&debug_log->lock); | |
170 | ||
171 | while ((!error) && (i < count) && | |
172 | (debug_log->log_start != debug_log->log_end)) { | |
a8a0a62d SE |
173 | char_addr = batadv_log_char_addr(debug_log, |
174 | debug_log->log_start); | |
175 | c = *char_addr; | |
c6c8fea2 SE |
176 | |
177 | debug_log->log_start++; | |
178 | ||
179 | spin_unlock_bh(&debug_log->lock); | |
180 | ||
181 | error = __put_user(c, buf); | |
182 | ||
183 | spin_lock_bh(&debug_log->lock); | |
184 | ||
185 | buf++; | |
186 | i++; | |
c6c8fea2 SE |
187 | } |
188 | ||
189 | spin_unlock_bh(&debug_log->lock); | |
190 | ||
191 | if (!error) | |
192 | return i; | |
193 | ||
194 | return error; | |
195 | } | |
196 | ||
9e466250 | 197 | static unsigned int batadv_log_poll(struct file *file, poll_table *wait) |
c6c8fea2 | 198 | { |
56303d34 | 199 | struct batadv_priv *bat_priv = file->private_data; |
0abf5d81 | 200 | struct batadv_priv_debug_log *debug_log = bat_priv->debug_log; |
c6c8fea2 SE |
201 | |
202 | poll_wait(file, &debug_log->queue_wait, wait); | |
203 | ||
0aca2369 | 204 | if (!batadv_log_empty(debug_log)) |
c6c8fea2 SE |
205 | return POLLIN | POLLRDNORM; |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
9e466250 SE |
210 | static const struct file_operations batadv_log_fops = { |
211 | .open = batadv_log_open, | |
212 | .release = batadv_log_release, | |
213 | .read = batadv_log_read, | |
214 | .poll = batadv_log_poll, | |
c6c8fea2 SE |
215 | .llseek = no_llseek, |
216 | }; | |
217 | ||
56303d34 | 218 | static int batadv_debug_log_setup(struct batadv_priv *bat_priv) |
c6c8fea2 SE |
219 | { |
220 | struct dentry *d; | |
221 | ||
222 | if (!bat_priv->debug_dir) | |
223 | goto err; | |
224 | ||
704509b8 | 225 | bat_priv->debug_log = kzalloc(sizeof(*bat_priv->debug_log), GFP_ATOMIC); |
c6c8fea2 SE |
226 | if (!bat_priv->debug_log) |
227 | goto err; | |
228 | ||
229 | spin_lock_init(&bat_priv->debug_log->lock); | |
230 | init_waitqueue_head(&bat_priv->debug_log->queue_wait); | |
231 | ||
232 | d = debugfs_create_file("log", S_IFREG | S_IRUSR, | |
9e466250 SE |
233 | bat_priv->debug_dir, bat_priv, |
234 | &batadv_log_fops); | |
5346c35e | 235 | if (!d) |
c6c8fea2 SE |
236 | goto err; |
237 | ||
238 | return 0; | |
239 | ||
240 | err: | |
5346c35e | 241 | return -ENOMEM; |
c6c8fea2 SE |
242 | } |
243 | ||
56303d34 | 244 | static void batadv_debug_log_cleanup(struct batadv_priv *bat_priv) |
c6c8fea2 SE |
245 | { |
246 | kfree(bat_priv->debug_log); | |
247 | bat_priv->debug_log = NULL; | |
248 | } | |
249 | #else /* CONFIG_BATMAN_ADV_DEBUG */ | |
56303d34 | 250 | static int batadv_debug_log_setup(struct batadv_priv *bat_priv) |
c6c8fea2 | 251 | { |
c6c8fea2 SE |
252 | return 0; |
253 | } | |
254 | ||
56303d34 | 255 | static void batadv_debug_log_cleanup(struct batadv_priv *bat_priv) |
c6c8fea2 | 256 | { |
c6c8fea2 SE |
257 | } |
258 | #endif | |
259 | ||
9e466250 | 260 | static int batadv_algorithms_open(struct inode *inode, struct file *file) |
1c280471 | 261 | { |
3193e8fd | 262 | return single_open(file, batadv_algo_seq_print_text, NULL); |
1c280471 ML |
263 | } |
264 | ||
7587405a ML |
265 | static int neighbors_open(struct inode *inode, struct file *file) |
266 | { | |
267 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
268 | ||
269 | return single_open(file, batadv_hardif_neigh_seq_print_text, net_dev); | |
270 | } | |
271 | ||
9e466250 | 272 | static int batadv_originators_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
273 | { |
274 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 275 | |
7d211efc | 276 | return single_open(file, batadv_orig_seq_print_text, net_dev); |
c6c8fea2 SE |
277 | } |
278 | ||
cb1c92ec SW |
279 | /** |
280 | * batadv_originators_hardif_open - handles debugfs output for the | |
281 | * originator table of an hard interface | |
282 | * @inode: inode pointer to debugfs file | |
283 | * @file: pointer to the seq_file | |
7afcbbef SE |
284 | * |
285 | * Return: 0 on success or negative error number in case of failure | |
cb1c92ec SW |
286 | */ |
287 | static int batadv_originators_hardif_open(struct inode *inode, | |
288 | struct file *file) | |
289 | { | |
290 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 291 | |
cb1c92ec SW |
292 | return single_open(file, batadv_orig_hardif_seq_print_text, net_dev); |
293 | } | |
294 | ||
9e466250 | 295 | static int batadv_gateways_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
296 | { |
297 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 298 | |
7cf06bc6 | 299 | return single_open(file, batadv_gw_client_seq_print_text, net_dev); |
c6c8fea2 SE |
300 | } |
301 | ||
9e466250 | 302 | static int batadv_transtable_global_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
303 | { |
304 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 305 | |
08c36d3e | 306 | return single_open(file, batadv_tt_global_seq_print_text, net_dev); |
c6c8fea2 SE |
307 | } |
308 | ||
7a5cc242 | 309 | #ifdef CONFIG_BATMAN_ADV_BLA |
9e466250 | 310 | static int batadv_bla_claim_table_open(struct inode *inode, struct file *file) |
9bf8e4d4 SW |
311 | { |
312 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 313 | |
08adf151 SE |
314 | return single_open(file, batadv_bla_claim_table_seq_print_text, |
315 | net_dev); | |
9bf8e4d4 | 316 | } |
536a23f1 SW |
317 | |
318 | static int batadv_bla_backbone_table_open(struct inode *inode, | |
319 | struct file *file) | |
320 | { | |
321 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 322 | |
536a23f1 SW |
323 | return single_open(file, batadv_bla_backbone_table_seq_print_text, |
324 | net_dev); | |
325 | } | |
326 | ||
7a5cc242 | 327 | #endif |
9bf8e4d4 | 328 | |
17224474 | 329 | #ifdef CONFIG_BATMAN_ADV_DAT |
2f1dfbe1 AQ |
330 | /** |
331 | * batadv_dat_cache_open - Prepare file handler for reads from dat_chache | |
332 | * @inode: inode which was opened | |
333 | * @file: file handle to be initialized | |
7afcbbef SE |
334 | * |
335 | * Return: 0 on success or negative error number in case of failure | |
2f1dfbe1 AQ |
336 | */ |
337 | static int batadv_dat_cache_open(struct inode *inode, struct file *file) | |
338 | { | |
339 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 340 | |
2f1dfbe1 AQ |
341 | return single_open(file, batadv_dat_cache_seq_print_text, net_dev); |
342 | } | |
17224474 | 343 | #endif |
2f1dfbe1 | 344 | |
9e466250 | 345 | static int batadv_transtable_local_open(struct inode *inode, struct file *file) |
c6c8fea2 SE |
346 | { |
347 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 348 | |
08c36d3e | 349 | return single_open(file, batadv_tt_local_seq_print_text, net_dev); |
c6c8fea2 SE |
350 | } |
351 | ||
7f223c0c | 352 | struct batadv_debuginfo { |
c6c8fea2 SE |
353 | struct attribute attr; |
354 | const struct file_operations fops; | |
355 | }; | |
356 | ||
d56b1705 MH |
357 | #ifdef CONFIG_BATMAN_ADV_NC |
358 | static int batadv_nc_nodes_open(struct inode *inode, struct file *file) | |
359 | { | |
360 | struct net_device *net_dev = (struct net_device *)inode->i_private; | |
f138694b | 361 | |
d56b1705 MH |
362 | return single_open(file, batadv_nc_nodes_seq_print_text, net_dev); |
363 | } | |
364 | #endif | |
365 | ||
347c80f0 | 366 | #define BATADV_DEBUGINFO(_name, _mode, _open) \ |
7f223c0c | 367 | struct batadv_debuginfo batadv_debuginfo_##_name = { \ |
9e466250 SE |
368 | .attr = { .name = __stringify(_name), \ |
369 | .mode = _mode, }, \ | |
370 | .fops = { .owner = THIS_MODULE, \ | |
371 | .open = _open, \ | |
372 | .read = seq_read, \ | |
373 | .llseek = seq_lseek, \ | |
374 | .release = single_release, \ | |
375 | } \ | |
2b64df20 | 376 | } |
c6c8fea2 | 377 | |
637fbd12 AQ |
378 | /* the following attributes are general and therefore they will be directly |
379 | * placed in the BATADV_DEBUGFS_SUBDIR subdirectory of debugfs | |
380 | */ | |
347c80f0 | 381 | static BATADV_DEBUGINFO(routing_algos, S_IRUGO, batadv_algorithms_open); |
637fbd12 AQ |
382 | |
383 | static struct batadv_debuginfo *batadv_general_debuginfos[] = { | |
384 | &batadv_debuginfo_routing_algos, | |
385 | NULL, | |
386 | }; | |
387 | ||
388 | /* The following attributes are per soft interface */ | |
7587405a | 389 | static BATADV_DEBUGINFO(neighbors, S_IRUGO, neighbors_open); |
347c80f0 SE |
390 | static BATADV_DEBUGINFO(originators, S_IRUGO, batadv_originators_open); |
391 | static BATADV_DEBUGINFO(gateways, S_IRUGO, batadv_gateways_open); | |
392 | static BATADV_DEBUGINFO(transtable_global, S_IRUGO, | |
393 | batadv_transtable_global_open); | |
7a5cc242 | 394 | #ifdef CONFIG_BATMAN_ADV_BLA |
347c80f0 | 395 | static BATADV_DEBUGINFO(bla_claim_table, S_IRUGO, batadv_bla_claim_table_open); |
536a23f1 SW |
396 | static BATADV_DEBUGINFO(bla_backbone_table, S_IRUGO, |
397 | batadv_bla_backbone_table_open); | |
7a5cc242 | 398 | #endif |
17224474 | 399 | #ifdef CONFIG_BATMAN_ADV_DAT |
2f1dfbe1 | 400 | static BATADV_DEBUGINFO(dat_cache, S_IRUGO, batadv_dat_cache_open); |
17224474 | 401 | #endif |
347c80f0 SE |
402 | static BATADV_DEBUGINFO(transtable_local, S_IRUGO, |
403 | batadv_transtable_local_open); | |
d56b1705 MH |
404 | #ifdef CONFIG_BATMAN_ADV_NC |
405 | static BATADV_DEBUGINFO(nc_nodes, S_IRUGO, batadv_nc_nodes_open); | |
406 | #endif | |
c6c8fea2 | 407 | |
7f223c0c | 408 | static struct batadv_debuginfo *batadv_mesh_debuginfos[] = { |
7587405a | 409 | &batadv_debuginfo_neighbors, |
9e466250 SE |
410 | &batadv_debuginfo_originators, |
411 | &batadv_debuginfo_gateways, | |
412 | &batadv_debuginfo_transtable_global, | |
7a5cc242 | 413 | #ifdef CONFIG_BATMAN_ADV_BLA |
9e466250 | 414 | &batadv_debuginfo_bla_claim_table, |
536a23f1 | 415 | &batadv_debuginfo_bla_backbone_table, |
7a5cc242 | 416 | #endif |
17224474 | 417 | #ifdef CONFIG_BATMAN_ADV_DAT |
2f1dfbe1 | 418 | &batadv_debuginfo_dat_cache, |
17224474 | 419 | #endif |
9e466250 | 420 | &batadv_debuginfo_transtable_local, |
d56b1705 MH |
421 | #ifdef CONFIG_BATMAN_ADV_NC |
422 | &batadv_debuginfo_nc_nodes, | |
423 | #endif | |
c6c8fea2 SE |
424 | NULL, |
425 | }; | |
426 | ||
5bc7c1eb SW |
427 | #define BATADV_HARDIF_DEBUGINFO(_name, _mode, _open) \ |
428 | struct batadv_debuginfo batadv_hardif_debuginfo_##_name = { \ | |
429 | .attr = { \ | |
430 | .name = __stringify(_name), \ | |
431 | .mode = _mode, \ | |
432 | }, \ | |
433 | .fops = { \ | |
434 | .owner = THIS_MODULE, \ | |
435 | .open = _open, \ | |
436 | .read = seq_read, \ | |
437 | .llseek = seq_lseek, \ | |
438 | .release = single_release, \ | |
439 | }, \ | |
2b64df20 | 440 | } |
aa143d28 | 441 | |
cb1c92ec SW |
442 | static BATADV_HARDIF_DEBUGINFO(originators, S_IRUGO, |
443 | batadv_originators_hardif_open); | |
5bc7c1eb SW |
444 | |
445 | static struct batadv_debuginfo *batadv_hardif_debuginfos[] = { | |
cb1c92ec | 446 | &batadv_hardif_debuginfo_originators, |
5bc7c1eb SW |
447 | NULL, |
448 | }; | |
449 | ||
40a072d7 | 450 | void batadv_debugfs_init(void) |
c6c8fea2 | 451 | { |
637fbd12 | 452 | struct batadv_debuginfo **bat_debug; |
1c280471 ML |
453 | struct dentry *file; |
454 | ||
54590e4d | 455 | batadv_debugfs = debugfs_create_dir(BATADV_DEBUGFS_SUBDIR, NULL); |
9e466250 SE |
456 | if (batadv_debugfs == ERR_PTR(-ENODEV)) |
457 | batadv_debugfs = NULL; | |
1c280471 | 458 | |
9e466250 | 459 | if (!batadv_debugfs) |
637fbd12 | 460 | goto err; |
1c280471 | 461 | |
637fbd12 AQ |
462 | for (bat_debug = batadv_general_debuginfos; *bat_debug; ++bat_debug) { |
463 | file = debugfs_create_file(((*bat_debug)->attr).name, | |
464 | S_IFREG | ((*bat_debug)->attr).mode, | |
465 | batadv_debugfs, NULL, | |
466 | &(*bat_debug)->fops); | |
467 | if (!file) { | |
468 | pr_err("Can't add general debugfs file: %s\n", | |
469 | ((*bat_debug)->attr).name); | |
470 | goto err; | |
471 | } | |
472 | } | |
1c280471 | 473 | |
1c280471 | 474 | return; |
637fbd12 AQ |
475 | err: |
476 | debugfs_remove_recursive(batadv_debugfs); | |
5bc7c1eb | 477 | batadv_debugfs = NULL; |
c6c8fea2 SE |
478 | } |
479 | ||
40a072d7 | 480 | void batadv_debugfs_destroy(void) |
c6c8fea2 | 481 | { |
3f87c423 AQ |
482 | debugfs_remove_recursive(batadv_debugfs); |
483 | batadv_debugfs = NULL; | |
c6c8fea2 SE |
484 | } |
485 | ||
5bc7c1eb SW |
486 | /** |
487 | * batadv_debugfs_add_hardif - creates the base directory for a hard interface | |
488 | * in debugfs. | |
489 | * @hard_iface: hard interface which should be added. | |
7afcbbef SE |
490 | * |
491 | * Return: 0 on success or negative error number in case of failure | |
5bc7c1eb SW |
492 | */ |
493 | int batadv_debugfs_add_hardif(struct batadv_hard_iface *hard_iface) | |
494 | { | |
495 | struct batadv_debuginfo **bat_debug; | |
496 | struct dentry *file; | |
497 | ||
498 | if (!batadv_debugfs) | |
499 | goto out; | |
500 | ||
501 | hard_iface->debug_dir = debugfs_create_dir(hard_iface->net_dev->name, | |
502 | batadv_debugfs); | |
503 | if (!hard_iface->debug_dir) | |
504 | goto out; | |
505 | ||
506 | for (bat_debug = batadv_hardif_debuginfos; *bat_debug; ++bat_debug) { | |
507 | file = debugfs_create_file(((*bat_debug)->attr).name, | |
508 | S_IFREG | ((*bat_debug)->attr).mode, | |
509 | hard_iface->debug_dir, | |
510 | hard_iface->net_dev, | |
511 | &(*bat_debug)->fops); | |
512 | if (!file) | |
513 | goto rem_attr; | |
514 | } | |
515 | ||
516 | return 0; | |
517 | rem_attr: | |
518 | debugfs_remove_recursive(hard_iface->debug_dir); | |
519 | hard_iface->debug_dir = NULL; | |
520 | out: | |
5bc7c1eb | 521 | return -ENOMEM; |
5bc7c1eb SW |
522 | } |
523 | ||
524 | /** | |
525 | * batadv_debugfs_del_hardif - delete the base directory for a hard interface | |
526 | * in debugfs. | |
527 | * @hard_iface: hard interface which is deleted. | |
528 | */ | |
529 | void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface) | |
530 | { | |
531 | if (batadv_debugfs) { | |
532 | debugfs_remove_recursive(hard_iface->debug_dir); | |
533 | hard_iface->debug_dir = NULL; | |
534 | } | |
535 | } | |
536 | ||
40a072d7 | 537 | int batadv_debugfs_add_meshif(struct net_device *dev) |
c6c8fea2 | 538 | { |
56303d34 | 539 | struct batadv_priv *bat_priv = netdev_priv(dev); |
7f223c0c | 540 | struct batadv_debuginfo **bat_debug; |
c6c8fea2 SE |
541 | struct dentry *file; |
542 | ||
9e466250 | 543 | if (!batadv_debugfs) |
c6c8fea2 SE |
544 | goto out; |
545 | ||
9e466250 | 546 | bat_priv->debug_dir = debugfs_create_dir(dev->name, batadv_debugfs); |
c6c8fea2 SE |
547 | if (!bat_priv->debug_dir) |
548 | goto out; | |
549 | ||
9039dc7e | 550 | if (batadv_socket_setup(bat_priv) < 0) |
5346c35e SE |
551 | goto rem_attr; |
552 | ||
9e466250 | 553 | if (batadv_debug_log_setup(bat_priv) < 0) |
5346c35e | 554 | goto rem_attr; |
c6c8fea2 | 555 | |
9e466250 | 556 | for (bat_debug = batadv_mesh_debuginfos; *bat_debug; ++bat_debug) { |
c6c8fea2 | 557 | file = debugfs_create_file(((*bat_debug)->attr).name, |
0aca2369 SE |
558 | S_IFREG | ((*bat_debug)->attr).mode, |
559 | bat_priv->debug_dir, | |
560 | dev, &(*bat_debug)->fops); | |
c6c8fea2 | 561 | if (!file) { |
3e34819e SE |
562 | batadv_err(dev, "Can't add debugfs file: %s/%s\n", |
563 | dev->name, ((*bat_debug)->attr).name); | |
c6c8fea2 SE |
564 | goto rem_attr; |
565 | } | |
566 | } | |
567 | ||
d56b1705 MH |
568 | if (batadv_nc_init_debugfs(bat_priv) < 0) |
569 | goto rem_attr; | |
570 | ||
c6c8fea2 SE |
571 | return 0; |
572 | rem_attr: | |
573 | debugfs_remove_recursive(bat_priv->debug_dir); | |
574 | bat_priv->debug_dir = NULL; | |
575 | out: | |
c6c8fea2 | 576 | return -ENOMEM; |
c6c8fea2 SE |
577 | } |
578 | ||
40a072d7 | 579 | void batadv_debugfs_del_meshif(struct net_device *dev) |
c6c8fea2 | 580 | { |
56303d34 | 581 | struct batadv_priv *bat_priv = netdev_priv(dev); |
c6c8fea2 | 582 | |
9e466250 | 583 | batadv_debug_log_cleanup(bat_priv); |
c6c8fea2 | 584 | |
9e466250 | 585 | if (batadv_debugfs) { |
c6c8fea2 SE |
586 | debugfs_remove_recursive(bat_priv->debug_dir); |
587 | bat_priv->debug_dir = NULL; | |
588 | } | |
589 | } |