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18#include "debugfs.h"
19#include "main.h"
20
21#include <linux/debugfs.h>
22#include <linux/device.h>
23#include <linux/errno.h>
24#include <linux/export.h>
25#include <linux/fs.h>
26#include <linux/netdevice.h>
27#include <linux/printk.h>
28#include <linux/sched.h>
29#include <linux/seq_file.h>
30#include <linux/stat.h>
31#include <linux/stddef.h>
32#include <linux/stringify.h>
33#include <linux/sysfs.h>
34#include <net/net_namespace.h>
35
36#include "bat_algo.h"
37#include "bridge_loop_avoidance.h"
38#include "distributed-arp-table.h"
39#include "gateway_client.h"
40#include "icmp_socket.h"
41#include "log.h"
42#include "multicast.h"
43#include "network-coding.h"
44#include "originator.h"
45#include "translation-table.h"
46
47static struct dentry *batadv_debugfs;
48
49static int batadv_algorithms_open(struct inode *inode, struct file *file)
50{
51 return single_open(file, batadv_algo_seq_print_text, NULL);
52}
53
54static int neighbors_open(struct inode *inode, struct file *file)
55{
56 struct net_device *net_dev = (struct net_device *)inode->i_private;
57
58 return single_open(file, batadv_hardif_neigh_seq_print_text, net_dev);
59}
60
61static int batadv_originators_open(struct inode *inode, struct file *file)
62{
63 struct net_device *net_dev = (struct net_device *)inode->i_private;
64
65 return single_open(file, batadv_orig_seq_print_text, net_dev);
66}
67
68
69
70
71
72
73
74
75
76static int batadv_originators_hardif_open(struct inode *inode,
77 struct file *file)
78{
79 struct net_device *net_dev = (struct net_device *)inode->i_private;
80
81 return single_open(file, batadv_orig_hardif_seq_print_text, net_dev);
82}
83
84static int batadv_gateways_open(struct inode *inode, struct file *file)
85{
86 struct net_device *net_dev = (struct net_device *)inode->i_private;
87
88 return single_open(file, batadv_gw_client_seq_print_text, net_dev);
89}
90
91static int batadv_transtable_global_open(struct inode *inode, struct file *file)
92{
93 struct net_device *net_dev = (struct net_device *)inode->i_private;
94
95 return single_open(file, batadv_tt_global_seq_print_text, net_dev);
96}
97
98#ifdef CONFIG_BATMAN_ADV_BLA
99static int batadv_bla_claim_table_open(struct inode *inode, struct file *file)
100{
101 struct net_device *net_dev = (struct net_device *)inode->i_private;
102
103 return single_open(file, batadv_bla_claim_table_seq_print_text,
104 net_dev);
105}
106
107static int batadv_bla_backbone_table_open(struct inode *inode,
108 struct file *file)
109{
110 struct net_device *net_dev = (struct net_device *)inode->i_private;
111
112 return single_open(file, batadv_bla_backbone_table_seq_print_text,
113 net_dev);
114}
115
116#endif
117
118#ifdef CONFIG_BATMAN_ADV_DAT
119
120
121
122
123
124
125
126static int batadv_dat_cache_open(struct inode *inode, struct file *file)
127{
128 struct net_device *net_dev = (struct net_device *)inode->i_private;
129
130 return single_open(file, batadv_dat_cache_seq_print_text, net_dev);
131}
132#endif
133
134static int batadv_transtable_local_open(struct inode *inode, struct file *file)
135{
136 struct net_device *net_dev = (struct net_device *)inode->i_private;
137
138 return single_open(file, batadv_tt_local_seq_print_text, net_dev);
139}
140
141struct batadv_debuginfo {
142 struct attribute attr;
143 const struct file_operations fops;
144};
145
146#ifdef CONFIG_BATMAN_ADV_NC
147static int batadv_nc_nodes_open(struct inode *inode, struct file *file)
148{
149 struct net_device *net_dev = (struct net_device *)inode->i_private;
150
151 return single_open(file, batadv_nc_nodes_seq_print_text, net_dev);
152}
153#endif
154
155#ifdef CONFIG_BATMAN_ADV_MCAST
156
157
158
159
160
161
162
163static int batadv_mcast_flags_open(struct inode *inode, struct file *file)
164{
165 struct net_device *net_dev = (struct net_device *)inode->i_private;
166
167 return single_open(file, batadv_mcast_flags_seq_print_text, net_dev);
168}
169#endif
170
171#define BATADV_DEBUGINFO(_name, _mode, _open) \
172struct batadv_debuginfo batadv_debuginfo_##_name = { \
173 .attr = { \
174 .name = __stringify(_name), \
175 .mode = _mode, \
176 }, \
177 .fops = { \
178 .owner = THIS_MODULE, \
179 .open = _open, \
180 .read = seq_read, \
181 .llseek = seq_lseek, \
182 .release = single_release, \
183 }, \
184}
185
186
187
188
189static BATADV_DEBUGINFO(routing_algos, S_IRUGO, batadv_algorithms_open);
190
191static struct batadv_debuginfo *batadv_general_debuginfos[] = {
192 &batadv_debuginfo_routing_algos,
193 NULL,
194};
195
196
197static BATADV_DEBUGINFO(neighbors, S_IRUGO, neighbors_open);
198static BATADV_DEBUGINFO(originators, S_IRUGO, batadv_originators_open);
199static BATADV_DEBUGINFO(gateways, S_IRUGO, batadv_gateways_open);
200static BATADV_DEBUGINFO(transtable_global, S_IRUGO,
201 batadv_transtable_global_open);
202#ifdef CONFIG_BATMAN_ADV_BLA
203static BATADV_DEBUGINFO(bla_claim_table, S_IRUGO, batadv_bla_claim_table_open);
204static BATADV_DEBUGINFO(bla_backbone_table, S_IRUGO,
205 batadv_bla_backbone_table_open);
206#endif
207#ifdef CONFIG_BATMAN_ADV_DAT
208static BATADV_DEBUGINFO(dat_cache, S_IRUGO, batadv_dat_cache_open);
209#endif
210static BATADV_DEBUGINFO(transtable_local, S_IRUGO,
211 batadv_transtable_local_open);
212#ifdef CONFIG_BATMAN_ADV_NC
213static BATADV_DEBUGINFO(nc_nodes, S_IRUGO, batadv_nc_nodes_open);
214#endif
215#ifdef CONFIG_BATMAN_ADV_MCAST
216static BATADV_DEBUGINFO(mcast_flags, S_IRUGO, batadv_mcast_flags_open);
217#endif
218
219static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
220 &batadv_debuginfo_neighbors,
221 &batadv_debuginfo_originators,
222 &batadv_debuginfo_gateways,
223 &batadv_debuginfo_transtable_global,
224#ifdef CONFIG_BATMAN_ADV_BLA
225 &batadv_debuginfo_bla_claim_table,
226 &batadv_debuginfo_bla_backbone_table,
227#endif
228#ifdef CONFIG_BATMAN_ADV_DAT
229 &batadv_debuginfo_dat_cache,
230#endif
231 &batadv_debuginfo_transtable_local,
232#ifdef CONFIG_BATMAN_ADV_NC
233 &batadv_debuginfo_nc_nodes,
234#endif
235#ifdef CONFIG_BATMAN_ADV_MCAST
236 &batadv_debuginfo_mcast_flags,
237#endif
238 NULL,
239};
240
241#define BATADV_HARDIF_DEBUGINFO(_name, _mode, _open) \
242struct batadv_debuginfo batadv_hardif_debuginfo_##_name = { \
243 .attr = { \
244 .name = __stringify(_name), \
245 .mode = _mode, \
246 }, \
247 .fops = { \
248 .owner = THIS_MODULE, \
249 .open = _open, \
250 .read = seq_read, \
251 .llseek = seq_lseek, \
252 .release = single_release, \
253 }, \
254}
255
256static BATADV_HARDIF_DEBUGINFO(originators, S_IRUGO,
257 batadv_originators_hardif_open);
258
259static struct batadv_debuginfo *batadv_hardif_debuginfos[] = {
260 &batadv_hardif_debuginfo_originators,
261 NULL,
262};
263
264void batadv_debugfs_init(void)
265{
266 struct batadv_debuginfo **bat_debug;
267 struct dentry *file;
268
269 batadv_debugfs = debugfs_create_dir(BATADV_DEBUGFS_SUBDIR, NULL);
270 if (batadv_debugfs == ERR_PTR(-ENODEV))
271 batadv_debugfs = NULL;
272
273 if (!batadv_debugfs)
274 goto err;
275
276 for (bat_debug = batadv_general_debuginfos; *bat_debug; ++bat_debug) {
277 file = debugfs_create_file(((*bat_debug)->attr).name,
278 S_IFREG | ((*bat_debug)->attr).mode,
279 batadv_debugfs, NULL,
280 &(*bat_debug)->fops);
281 if (!file) {
282 pr_err("Can't add general debugfs file: %s\n",
283 ((*bat_debug)->attr).name);
284 goto err;
285 }
286 }
287
288 return;
289err:
290 debugfs_remove_recursive(batadv_debugfs);
291 batadv_debugfs = NULL;
292}
293
294void batadv_debugfs_destroy(void)
295{
296 debugfs_remove_recursive(batadv_debugfs);
297 batadv_debugfs = NULL;
298}
299
300
301
302
303
304
305
306
307int batadv_debugfs_add_hardif(struct batadv_hard_iface *hard_iface)
308{
309 struct net *net = dev_net(hard_iface->net_dev);
310 struct batadv_debuginfo **bat_debug;
311 struct dentry *file;
312
313 if (!batadv_debugfs)
314 goto out;
315
316 if (net != &init_net)
317 return 0;
318
319 hard_iface->debug_dir = debugfs_create_dir(hard_iface->net_dev->name,
320 batadv_debugfs);
321 if (!hard_iface->debug_dir)
322 goto out;
323
324 for (bat_debug = batadv_hardif_debuginfos; *bat_debug; ++bat_debug) {
325 file = debugfs_create_file(((*bat_debug)->attr).name,
326 S_IFREG | ((*bat_debug)->attr).mode,
327 hard_iface->debug_dir,
328 hard_iface->net_dev,
329 &(*bat_debug)->fops);
330 if (!file)
331 goto rem_attr;
332 }
333
334 return 0;
335rem_attr:
336 debugfs_remove_recursive(hard_iface->debug_dir);
337 hard_iface->debug_dir = NULL;
338out:
339 return -ENOMEM;
340}
341
342
343
344
345
346
347void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface)
348{
349 struct net *net = dev_net(hard_iface->net_dev);
350
351 if (net != &init_net)
352 return;
353
354 if (batadv_debugfs) {
355 debugfs_remove_recursive(hard_iface->debug_dir);
356 hard_iface->debug_dir = NULL;
357 }
358}
359
360int batadv_debugfs_add_meshif(struct net_device *dev)
361{
362 struct batadv_priv *bat_priv = netdev_priv(dev);
363 struct batadv_debuginfo **bat_debug;
364 struct net *net = dev_net(dev);
365 struct dentry *file;
366
367 if (!batadv_debugfs)
368 goto out;
369
370 if (net != &init_net)
371 return 0;
372
373 bat_priv->debug_dir = debugfs_create_dir(dev->name, batadv_debugfs);
374 if (!bat_priv->debug_dir)
375 goto out;
376
377 if (batadv_socket_setup(bat_priv) < 0)
378 goto rem_attr;
379
380 if (batadv_debug_log_setup(bat_priv) < 0)
381 goto rem_attr;
382
383 for (bat_debug = batadv_mesh_debuginfos; *bat_debug; ++bat_debug) {
384 file = debugfs_create_file(((*bat_debug)->attr).name,
385 S_IFREG | ((*bat_debug)->attr).mode,
386 bat_priv->debug_dir,
387 dev, &(*bat_debug)->fops);
388 if (!file) {
389 batadv_err(dev, "Can't add debugfs file: %s/%s\n",
390 dev->name, ((*bat_debug)->attr).name);
391 goto rem_attr;
392 }
393 }
394
395 if (batadv_nc_init_debugfs(bat_priv) < 0)
396 goto rem_attr;
397
398 return 0;
399rem_attr:
400 debugfs_remove_recursive(bat_priv->debug_dir);
401 bat_priv->debug_dir = NULL;
402out:
403 return -ENOMEM;
404}
405
406void batadv_debugfs_del_meshif(struct net_device *dev)
407{
408 struct batadv_priv *bat_priv = netdev_priv(dev);
409 struct net *net = dev_net(dev);
410
411 if (net != &init_net)
412 return;
413
414 batadv_debug_log_cleanup(bat_priv);
415
416 if (batadv_debugfs) {
417 debugfs_remove_recursive(bat_priv->debug_dir);
418 bat_priv->debug_dir = NULL;
419 }
420}
421