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0d66548a OH |
1 | /* |
2 | * proc.c - procfs support for Protocol family CAN core module | |
3 | * | |
4 | * Copyright (c) 2002-2007 Volkswagen Group Electronic Research | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * 1. Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * 3. Neither the name of Volkswagen nor the names of its contributors | |
16 | * may be used to endorse or promote products derived from this software | |
17 | * without specific prior written permission. | |
18 | * | |
19 | * Alternatively, provided that this notice is retained in full, this | |
20 | * software may be distributed under the terms of the GNU General | |
21 | * Public License ("GPL") version 2, in which case the provisions of the | |
22 | * GPL apply INSTEAD OF those given above. | |
23 | * | |
24 | * The provided data structures and external interfaces from this code | |
25 | * are not restricted to be used by modules with a GPL compatible license. | |
26 | * | |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
28 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
29 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
30 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
31 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
32 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
33 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
34 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
35 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
36 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
37 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | |
38 | * DAMAGE. | |
39 | * | |
40 | * Send feedback to <socketcan-users@lists.berlios.de> | |
41 | * | |
42 | */ | |
43 | ||
44 | #include <linux/module.h> | |
45 | #include <linux/proc_fs.h> | |
46 | #include <linux/list.h> | |
47 | #include <linux/rcupdate.h> | |
20dd3850 | 48 | #include <linux/if_arp.h> |
0d66548a OH |
49 | #include <linux/can/core.h> |
50 | ||
51 | #include "af_can.h" | |
52 | ||
53 | /* | |
54 | * proc filenames for the PF_CAN core | |
55 | */ | |
56 | ||
57 | #define CAN_PROC_VERSION "version" | |
58 | #define CAN_PROC_STATS "stats" | |
59 | #define CAN_PROC_RESET_STATS "reset_stats" | |
60 | #define CAN_PROC_RCVLIST_ALL "rcvlist_all" | |
61 | #define CAN_PROC_RCVLIST_FIL "rcvlist_fil" | |
62 | #define CAN_PROC_RCVLIST_INV "rcvlist_inv" | |
63 | #define CAN_PROC_RCVLIST_SFF "rcvlist_sff" | |
64 | #define CAN_PROC_RCVLIST_EFF "rcvlist_eff" | |
65 | #define CAN_PROC_RCVLIST_ERR "rcvlist_err" | |
66 | ||
67 | static struct proc_dir_entry *can_dir; | |
68 | static struct proc_dir_entry *pde_version; | |
69 | static struct proc_dir_entry *pde_stats; | |
70 | static struct proc_dir_entry *pde_reset_stats; | |
71 | static struct proc_dir_entry *pde_rcvlist_all; | |
72 | static struct proc_dir_entry *pde_rcvlist_fil; | |
73 | static struct proc_dir_entry *pde_rcvlist_inv; | |
74 | static struct proc_dir_entry *pde_rcvlist_sff; | |
75 | static struct proc_dir_entry *pde_rcvlist_eff; | |
76 | static struct proc_dir_entry *pde_rcvlist_err; | |
77 | ||
78 | static int user_reset; | |
79 | ||
80 | static const char rx_list_name[][8] = { | |
81 | [RX_ERR] = "rx_err", | |
82 | [RX_ALL] = "rx_all", | |
83 | [RX_FIL] = "rx_fil", | |
84 | [RX_INV] = "rx_inv", | |
85 | [RX_EFF] = "rx_eff", | |
86 | }; | |
87 | ||
20dd3850 OH |
88 | /* receive filters subscribed for 'all' CAN devices */ |
89 | extern struct dev_rcv_lists can_rx_alldev_list; | |
90 | ||
0d66548a OH |
91 | /* |
92 | * af_can statistics stuff | |
93 | */ | |
94 | ||
95 | static void can_init_stats(void) | |
96 | { | |
97 | /* | |
98 | * This memset function is called from a timer context (when | |
99 | * can_stattimer is active which is the default) OR in a process | |
100 | * context (reading the proc_fs when can_stattimer is disabled). | |
101 | */ | |
102 | memset(&can_stats, 0, sizeof(can_stats)); | |
103 | can_stats.jiffies_init = jiffies; | |
104 | ||
105 | can_pstats.stats_reset++; | |
106 | ||
107 | if (user_reset) { | |
108 | user_reset = 0; | |
109 | can_pstats.user_reset++; | |
110 | } | |
111 | } | |
112 | ||
113 | static unsigned long calc_rate(unsigned long oldjif, unsigned long newjif, | |
114 | unsigned long count) | |
115 | { | |
116 | unsigned long rate; | |
117 | ||
118 | if (oldjif == newjif) | |
119 | return 0; | |
120 | ||
121 | /* see can_stat_update() - this should NEVER happen! */ | |
122 | if (count > (ULONG_MAX / HZ)) { | |
123 | printk(KERN_ERR "can: calc_rate: count exceeded! %ld\n", | |
124 | count); | |
125 | return 99999999; | |
126 | } | |
127 | ||
128 | rate = (count * HZ) / (newjif - oldjif); | |
129 | ||
130 | return rate; | |
131 | } | |
132 | ||
133 | void can_stat_update(unsigned long data) | |
134 | { | |
135 | unsigned long j = jiffies; /* snapshot */ | |
136 | ||
137 | /* restart counting in timer context on user request */ | |
138 | if (user_reset) | |
139 | can_init_stats(); | |
140 | ||
141 | /* restart counting on jiffies overflow */ | |
142 | if (j < can_stats.jiffies_init) | |
143 | can_init_stats(); | |
144 | ||
145 | /* prevent overflow in calc_rate() */ | |
146 | if (can_stats.rx_frames > (ULONG_MAX / HZ)) | |
147 | can_init_stats(); | |
148 | ||
149 | /* prevent overflow in calc_rate() */ | |
150 | if (can_stats.tx_frames > (ULONG_MAX / HZ)) | |
151 | can_init_stats(); | |
152 | ||
153 | /* matches overflow - very improbable */ | |
154 | if (can_stats.matches > (ULONG_MAX / 100)) | |
155 | can_init_stats(); | |
156 | ||
157 | /* calc total values */ | |
158 | if (can_stats.rx_frames) | |
159 | can_stats.total_rx_match_ratio = (can_stats.matches * 100) / | |
160 | can_stats.rx_frames; | |
161 | ||
162 | can_stats.total_tx_rate = calc_rate(can_stats.jiffies_init, j, | |
163 | can_stats.tx_frames); | |
164 | can_stats.total_rx_rate = calc_rate(can_stats.jiffies_init, j, | |
165 | can_stats.rx_frames); | |
166 | ||
167 | /* calc current values */ | |
168 | if (can_stats.rx_frames_delta) | |
169 | can_stats.current_rx_match_ratio = | |
170 | (can_stats.matches_delta * 100) / | |
171 | can_stats.rx_frames_delta; | |
172 | ||
173 | can_stats.current_tx_rate = calc_rate(0, HZ, can_stats.tx_frames_delta); | |
174 | can_stats.current_rx_rate = calc_rate(0, HZ, can_stats.rx_frames_delta); | |
175 | ||
176 | /* check / update maximum values */ | |
177 | if (can_stats.max_tx_rate < can_stats.current_tx_rate) | |
178 | can_stats.max_tx_rate = can_stats.current_tx_rate; | |
179 | ||
180 | if (can_stats.max_rx_rate < can_stats.current_rx_rate) | |
181 | can_stats.max_rx_rate = can_stats.current_rx_rate; | |
182 | ||
183 | if (can_stats.max_rx_match_ratio < can_stats.current_rx_match_ratio) | |
184 | can_stats.max_rx_match_ratio = can_stats.current_rx_match_ratio; | |
185 | ||
186 | /* clear values for 'current rate' calculation */ | |
187 | can_stats.tx_frames_delta = 0; | |
188 | can_stats.rx_frames_delta = 0; | |
189 | can_stats.matches_delta = 0; | |
190 | ||
191 | /* restart timer (one second) */ | |
192 | mod_timer(&can_stattimer, round_jiffies(jiffies + HZ)); | |
193 | } | |
194 | ||
195 | /* | |
196 | * proc read functions | |
0d66548a OH |
197 | */ |
198 | ||
ea00b8e2 AD |
199 | static void can_print_rcvlist(struct seq_file *m, struct hlist_head *rx_list, |
200 | struct net_device *dev) | |
0d66548a OH |
201 | { |
202 | struct receiver *r; | |
203 | struct hlist_node *n; | |
204 | ||
0d66548a OH |
205 | hlist_for_each_entry_rcu(r, n, rx_list, list) { |
206 | char *fmt = (r->can_id & CAN_EFF_FLAG)? | |
207 | " %-5s %08X %08x %08x %08x %8ld %s\n" : | |
208 | " %-5s %03X %08x %08lx %08lx %8ld %s\n"; | |
209 | ||
ea00b8e2 | 210 | seq_printf(m, fmt, DNAME(dev), r->can_id, r->mask, |
0d66548a OH |
211 | (unsigned long)r->func, (unsigned long)r->data, |
212 | r->matches, r->ident); | |
0d66548a | 213 | } |
0d66548a OH |
214 | } |
215 | ||
ea00b8e2 | 216 | static void can_print_recv_banner(struct seq_file *m) |
0d66548a OH |
217 | { |
218 | /* | |
219 | * can1. 00000000 00000000 00000000 | |
220 | * ....... 0 tp20 | |
221 | */ | |
ea00b8e2 | 222 | seq_puts(m, " device can_id can_mask function" |
0d66548a | 223 | " userdata matches ident\n"); |
0d66548a OH |
224 | } |
225 | ||
ea00b8e2 | 226 | static int can_stats_proc_show(struct seq_file *m, void *v) |
0d66548a | 227 | { |
ea00b8e2 AD |
228 | seq_putc(m, '\n'); |
229 | seq_printf(m, " %8ld transmitted frames (TXF)\n", can_stats.tx_frames); | |
230 | seq_printf(m, " %8ld received frames (RXF)\n", can_stats.rx_frames); | |
231 | seq_printf(m, " %8ld matched frames (RXMF)\n", can_stats.matches); | |
0d66548a | 232 | |
ea00b8e2 | 233 | seq_putc(m, '\n'); |
0d66548a OH |
234 | |
235 | if (can_stattimer.function == can_stat_update) { | |
ea00b8e2 | 236 | seq_printf(m, " %8ld %% total match ratio (RXMR)\n", |
0d66548a OH |
237 | can_stats.total_rx_match_ratio); |
238 | ||
ea00b8e2 | 239 | seq_printf(m, " %8ld frames/s total tx rate (TXR)\n", |
0d66548a | 240 | can_stats.total_tx_rate); |
ea00b8e2 | 241 | seq_printf(m, " %8ld frames/s total rx rate (RXR)\n", |
0d66548a OH |
242 | can_stats.total_rx_rate); |
243 | ||
ea00b8e2 | 244 | seq_putc(m, '\n'); |
0d66548a | 245 | |
ea00b8e2 | 246 | seq_printf(m, " %8ld %% current match ratio (CRXMR)\n", |
0d66548a OH |
247 | can_stats.current_rx_match_ratio); |
248 | ||
ea00b8e2 | 249 | seq_printf(m, " %8ld frames/s current tx rate (CTXR)\n", |
0d66548a | 250 | can_stats.current_tx_rate); |
ea00b8e2 | 251 | seq_printf(m, " %8ld frames/s current rx rate (CRXR)\n", |
0d66548a OH |
252 | can_stats.current_rx_rate); |
253 | ||
ea00b8e2 | 254 | seq_putc(m, '\n'); |
0d66548a | 255 | |
ea00b8e2 | 256 | seq_printf(m, " %8ld %% max match ratio (MRXMR)\n", |
0d66548a OH |
257 | can_stats.max_rx_match_ratio); |
258 | ||
ea00b8e2 | 259 | seq_printf(m, " %8ld frames/s max tx rate (MTXR)\n", |
0d66548a | 260 | can_stats.max_tx_rate); |
ea00b8e2 | 261 | seq_printf(m, " %8ld frames/s max rx rate (MRXR)\n", |
0d66548a OH |
262 | can_stats.max_rx_rate); |
263 | ||
ea00b8e2 | 264 | seq_putc(m, '\n'); |
0d66548a OH |
265 | } |
266 | ||
ea00b8e2 | 267 | seq_printf(m, " %8ld current receive list entries (CRCV)\n", |
0d66548a | 268 | can_pstats.rcv_entries); |
ea00b8e2 | 269 | seq_printf(m, " %8ld maximum receive list entries (MRCV)\n", |
0d66548a OH |
270 | can_pstats.rcv_entries_max); |
271 | ||
272 | if (can_pstats.stats_reset) | |
ea00b8e2 | 273 | seq_printf(m, "\n %8ld statistic resets (STR)\n", |
0d66548a OH |
274 | can_pstats.stats_reset); |
275 | ||
276 | if (can_pstats.user_reset) | |
ea00b8e2 | 277 | seq_printf(m, " %8ld user statistic resets (USTR)\n", |
0d66548a OH |
278 | can_pstats.user_reset); |
279 | ||
ea00b8e2 AD |
280 | seq_putc(m, '\n'); |
281 | return 0; | |
0d66548a OH |
282 | } |
283 | ||
ea00b8e2 | 284 | static int can_stats_proc_open(struct inode *inode, struct file *file) |
0d66548a | 285 | { |
ea00b8e2 AD |
286 | return single_open(file, can_stats_proc_show, NULL); |
287 | } | |
288 | ||
289 | static const struct file_operations can_stats_proc_fops = { | |
290 | .owner = THIS_MODULE, | |
291 | .open = can_stats_proc_open, | |
292 | .read = seq_read, | |
293 | .llseek = seq_lseek, | |
294 | .release = single_release, | |
295 | }; | |
0d66548a | 296 | |
ea00b8e2 AD |
297 | static int can_reset_stats_proc_show(struct seq_file *m, void *v) |
298 | { | |
0d66548a OH |
299 | user_reset = 1; |
300 | ||
301 | if (can_stattimer.function == can_stat_update) { | |
ea00b8e2 | 302 | seq_printf(m, "Scheduled statistic reset #%ld.\n", |
0d66548a OH |
303 | can_pstats.stats_reset + 1); |
304 | ||
305 | } else { | |
306 | if (can_stats.jiffies_init != jiffies) | |
307 | can_init_stats(); | |
308 | ||
ea00b8e2 | 309 | seq_printf(m, "Performed statistic reset #%ld.\n", |
0d66548a OH |
310 | can_pstats.stats_reset); |
311 | } | |
ea00b8e2 AD |
312 | return 0; |
313 | } | |
0d66548a | 314 | |
ea00b8e2 AD |
315 | static int can_reset_stats_proc_open(struct inode *inode, struct file *file) |
316 | { | |
317 | return single_open(file, can_reset_stats_proc_show, NULL); | |
0d66548a OH |
318 | } |
319 | ||
ea00b8e2 AD |
320 | static const struct file_operations can_reset_stats_proc_fops = { |
321 | .owner = THIS_MODULE, | |
322 | .open = can_reset_stats_proc_open, | |
323 | .read = seq_read, | |
324 | .llseek = seq_lseek, | |
325 | .release = single_release, | |
326 | }; | |
327 | ||
328 | static int can_version_proc_show(struct seq_file *m, void *v) | |
0d66548a | 329 | { |
ea00b8e2 AD |
330 | seq_printf(m, "%s\n", CAN_VERSION_STRING); |
331 | return 0; | |
332 | } | |
0d66548a | 333 | |
ea00b8e2 AD |
334 | static int can_version_proc_open(struct inode *inode, struct file *file) |
335 | { | |
336 | return single_open(file, can_version_proc_show, NULL); | |
0d66548a OH |
337 | } |
338 | ||
ea00b8e2 AD |
339 | static const struct file_operations can_version_proc_fops = { |
340 | .owner = THIS_MODULE, | |
341 | .open = can_version_proc_open, | |
342 | .read = seq_read, | |
343 | .llseek = seq_lseek, | |
344 | .release = single_release, | |
345 | }; | |
346 | ||
20dd3850 OH |
347 | static inline void can_rcvlist_proc_show_one(struct seq_file *m, int idx, |
348 | struct net_device *dev, | |
349 | struct dev_rcv_lists *d) | |
350 | { | |
351 | if (!hlist_empty(&d->rx[idx])) { | |
352 | can_print_recv_banner(m); | |
353 | can_print_rcvlist(m, &d->rx[idx], dev); | |
354 | } else | |
355 | seq_printf(m, " (%s: no entry)\n", DNAME(dev)); | |
356 | ||
357 | } | |
358 | ||
ea00b8e2 | 359 | static int can_rcvlist_proc_show(struct seq_file *m, void *v) |
0d66548a OH |
360 | { |
361 | /* double cast to prevent GCC warning */ | |
ea00b8e2 | 362 | int idx = (int)(long)m->private; |
20dd3850 | 363 | struct net_device *dev; |
0d66548a | 364 | struct dev_rcv_lists *d; |
0d66548a | 365 | |
ea00b8e2 | 366 | seq_printf(m, "\nreceive list '%s':\n", rx_list_name[idx]); |
0d66548a OH |
367 | |
368 | rcu_read_lock(); | |
0d66548a | 369 | |
20dd3850 OH |
370 | /* receive list for 'all' CAN devices (dev == NULL) */ |
371 | d = &can_rx_alldev_list; | |
372 | can_rcvlist_proc_show_one(m, idx, NULL, d); | |
373 | ||
374 | /* receive list for registered CAN devices */ | |
375 | for_each_netdev_rcu(&init_net, dev) { | |
376 | if (dev->type == ARPHRD_CAN && dev->ml_priv) | |
377 | can_rcvlist_proc_show_one(m, idx, dev, dev->ml_priv); | |
0d66548a | 378 | } |
20dd3850 | 379 | |
0d66548a OH |
380 | rcu_read_unlock(); |
381 | ||
ea00b8e2 AD |
382 | seq_putc(m, '\n'); |
383 | return 0; | |
384 | } | |
0d66548a | 385 | |
ea00b8e2 AD |
386 | static int can_rcvlist_proc_open(struct inode *inode, struct file *file) |
387 | { | |
388 | return single_open(file, can_rcvlist_proc_show, PDE(inode)->data); | |
0d66548a OH |
389 | } |
390 | ||
ea00b8e2 AD |
391 | static const struct file_operations can_rcvlist_proc_fops = { |
392 | .owner = THIS_MODULE, | |
393 | .open = can_rcvlist_proc_open, | |
394 | .read = seq_read, | |
395 | .llseek = seq_lseek, | |
396 | .release = single_release, | |
397 | }; | |
398 | ||
20dd3850 OH |
399 | static inline void can_rcvlist_sff_proc_show_one(struct seq_file *m, |
400 | struct net_device *dev, | |
401 | struct dev_rcv_lists *d) | |
402 | { | |
403 | int i; | |
404 | int all_empty = 1; | |
405 | ||
406 | /* check wether at least one list is non-empty */ | |
407 | for (i = 0; i < 0x800; i++) | |
408 | if (!hlist_empty(&d->rx_sff[i])) { | |
409 | all_empty = 0; | |
410 | break; | |
411 | } | |
412 | ||
413 | if (!all_empty) { | |
414 | can_print_recv_banner(m); | |
415 | for (i = 0; i < 0x800; i++) { | |
416 | if (!hlist_empty(&d->rx_sff[i])) | |
417 | can_print_rcvlist(m, &d->rx_sff[i], dev); | |
418 | } | |
419 | } else | |
420 | seq_printf(m, " (%s: no entry)\n", DNAME(dev)); | |
421 | } | |
422 | ||
ea00b8e2 | 423 | static int can_rcvlist_sff_proc_show(struct seq_file *m, void *v) |
0d66548a | 424 | { |
20dd3850 | 425 | struct net_device *dev; |
0d66548a | 426 | struct dev_rcv_lists *d; |
0d66548a OH |
427 | |
428 | /* RX_SFF */ | |
ea00b8e2 | 429 | seq_puts(m, "\nreceive list 'rx_sff':\n"); |
0d66548a OH |
430 | |
431 | rcu_read_lock(); | |
20dd3850 OH |
432 | |
433 | /* sff receive list for 'all' CAN devices (dev == NULL) */ | |
434 | d = &can_rx_alldev_list; | |
435 | can_rcvlist_sff_proc_show_one(m, NULL, d); | |
436 | ||
437 | /* sff receive list for registered CAN devices */ | |
438 | for_each_netdev_rcu(&init_net, dev) { | |
439 | if (dev->type == ARPHRD_CAN && dev->ml_priv) | |
440 | can_rcvlist_sff_proc_show_one(m, dev, dev->ml_priv); | |
0d66548a | 441 | } |
20dd3850 | 442 | |
0d66548a OH |
443 | rcu_read_unlock(); |
444 | ||
ea00b8e2 AD |
445 | seq_putc(m, '\n'); |
446 | return 0; | |
447 | } | |
0d66548a | 448 | |
ea00b8e2 AD |
449 | static int can_rcvlist_sff_proc_open(struct inode *inode, struct file *file) |
450 | { | |
451 | return single_open(file, can_rcvlist_sff_proc_show, NULL); | |
0d66548a OH |
452 | } |
453 | ||
ea00b8e2 AD |
454 | static const struct file_operations can_rcvlist_sff_proc_fops = { |
455 | .owner = THIS_MODULE, | |
456 | .open = can_rcvlist_sff_proc_open, | |
457 | .read = seq_read, | |
458 | .llseek = seq_lseek, | |
459 | .release = single_release, | |
460 | }; | |
461 | ||
0d66548a OH |
462 | /* |
463 | * proc utility functions | |
464 | */ | |
465 | ||
0d66548a OH |
466 | static void can_remove_proc_readentry(const char *name) |
467 | { | |
468 | if (can_dir) | |
469 | remove_proc_entry(name, can_dir); | |
470 | } | |
471 | ||
472 | /* | |
473 | * can_init_proc - create main CAN proc directory and procfs entries | |
474 | */ | |
475 | void can_init_proc(void) | |
476 | { | |
477 | /* create /proc/net/can directory */ | |
478 | can_dir = proc_mkdir("can", init_net.proc_net); | |
479 | ||
480 | if (!can_dir) { | |
481 | printk(KERN_INFO "can: failed to create /proc/net/can . " | |
482 | "CONFIG_PROC_FS missing?\n"); | |
483 | return; | |
484 | } | |
485 | ||
0d66548a | 486 | /* own procfs entries from the AF_CAN core */ |
ea00b8e2 AD |
487 | pde_version = proc_create(CAN_PROC_VERSION, 0644, can_dir, |
488 | &can_version_proc_fops); | |
489 | pde_stats = proc_create(CAN_PROC_STATS, 0644, can_dir, | |
490 | &can_stats_proc_fops); | |
491 | pde_reset_stats = proc_create(CAN_PROC_RESET_STATS, 0644, can_dir, | |
492 | &can_reset_stats_proc_fops); | |
493 | pde_rcvlist_err = proc_create_data(CAN_PROC_RCVLIST_ERR, 0644, can_dir, | |
494 | &can_rcvlist_proc_fops, (void *)RX_ERR); | |
495 | pde_rcvlist_all = proc_create_data(CAN_PROC_RCVLIST_ALL, 0644, can_dir, | |
496 | &can_rcvlist_proc_fops, (void *)RX_ALL); | |
497 | pde_rcvlist_fil = proc_create_data(CAN_PROC_RCVLIST_FIL, 0644, can_dir, | |
498 | &can_rcvlist_proc_fops, (void *)RX_FIL); | |
499 | pde_rcvlist_inv = proc_create_data(CAN_PROC_RCVLIST_INV, 0644, can_dir, | |
500 | &can_rcvlist_proc_fops, (void *)RX_INV); | |
501 | pde_rcvlist_eff = proc_create_data(CAN_PROC_RCVLIST_EFF, 0644, can_dir, | |
502 | &can_rcvlist_proc_fops, (void *)RX_EFF); | |
503 | pde_rcvlist_sff = proc_create(CAN_PROC_RCVLIST_SFF, 0644, can_dir, | |
504 | &can_rcvlist_sff_proc_fops); | |
0d66548a OH |
505 | } |
506 | ||
507 | /* | |
508 | * can_remove_proc - remove procfs entries and main CAN proc directory | |
509 | */ | |
510 | void can_remove_proc(void) | |
511 | { | |
512 | if (pde_version) | |
513 | can_remove_proc_readentry(CAN_PROC_VERSION); | |
514 | ||
515 | if (pde_stats) | |
516 | can_remove_proc_readentry(CAN_PROC_STATS); | |
517 | ||
518 | if (pde_reset_stats) | |
519 | can_remove_proc_readentry(CAN_PROC_RESET_STATS); | |
520 | ||
521 | if (pde_rcvlist_err) | |
522 | can_remove_proc_readentry(CAN_PROC_RCVLIST_ERR); | |
523 | ||
524 | if (pde_rcvlist_all) | |
525 | can_remove_proc_readentry(CAN_PROC_RCVLIST_ALL); | |
526 | ||
527 | if (pde_rcvlist_fil) | |
528 | can_remove_proc_readentry(CAN_PROC_RCVLIST_FIL); | |
529 | ||
530 | if (pde_rcvlist_inv) | |
531 | can_remove_proc_readentry(CAN_PROC_RCVLIST_INV); | |
532 | ||
533 | if (pde_rcvlist_eff) | |
534 | can_remove_proc_readentry(CAN_PROC_RCVLIST_EFF); | |
535 | ||
536 | if (pde_rcvlist_sff) | |
537 | can_remove_proc_readentry(CAN_PROC_RCVLIST_SFF); | |
538 | ||
539 | if (can_dir) | |
540 | proc_net_remove(&init_net, "can"); | |
541 | } |