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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * fs/cifs_debug.c
3 *
Steve Frenchb8643e12005-04-28 22:41:07 -07004 * Copyright (C) International Business Machines Corp., 2000,2005
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
6 * Modified by Steve French (sfrench@us.ibm.com)
7 *
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
Steve French221601c2007-06-05 20:35:06 +000010 * the Free Software Foundation; either version 2 of the License, or
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 * (at your option) any later version.
Steve French221601c2007-06-05 20:35:06 +000012 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
16 * the GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
Steve French221601c2007-06-05 20:35:06 +000019 * along with this program; if not, write to the Free Software
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22#include <linux/fs.h>
23#include <linux/string.h>
24#include <linux/ctype.h>
25#include <linux/module.h>
26#include <linux/proc_fs.h>
27#include <asm/uaccess.h>
28#include "cifspdu.h"
29#include "cifsglob.h"
30#include "cifsproto.h"
31#include "cifs_debug.h"
Steve French6c91d362005-04-28 22:41:06 -070032#include "cifsfs.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
34void
35cifs_dump_mem(char *label, void *data, int length)
36{
37 int i, j;
38 int *intptr = data;
39 char *charptr = data;
40 char buf[10], line[80];
41
Steve French221601c2007-06-05 20:35:06 +000042 printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 label, length, data);
44 for (i = 0; i < length; i += 16) {
45 line[0] = 0;
46 for (j = 0; (j < 4) && (i + j * 4 < length); j++) {
47 sprintf(buf, " %08x", intptr[i / 4 + j]);
48 strcat(line, buf);
49 }
50 buf[0] = ' ';
51 buf[2] = 0;
52 for (j = 0; (j < 16) && (i + j < length); j++) {
53 buf[1] = isprint(charptr[i + j]) ? charptr[i + j] : '.';
54 strcat(line, buf);
55 }
56 printk(KERN_DEBUG "%s\n", line);
57 }
58}
59
Steve French39798772006-05-31 22:40:51 +000060#ifdef CONFIG_CIFS_DEBUG2
Steve Frenchffdd6e42007-06-24 21:15:44 +000061void cifs_dump_detail(struct smb_hdr *smb)
Steve French39798772006-05-31 22:40:51 +000062{
Joe Perchesb6b38f72010-04-21 03:50:45 +000063 cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
Steve French39798772006-05-31 22:40:51 +000064 smb->Command, smb->Status.CifsError,
Joe Perchesb6b38f72010-04-21 03:50:45 +000065 smb->Flags, smb->Flags2, smb->Mid, smb->Pid);
66 cERROR(1, "smb buf %p len %d", smb, smbCalcSize_LE(smb));
Steve French39798772006-05-31 22:40:51 +000067}
68
69
Steve Frenchffdd6e42007-06-24 21:15:44 +000070void cifs_dump_mids(struct TCP_Server_Info *server)
Steve French39798772006-05-31 22:40:51 +000071{
72 struct list_head *tmp;
Steve Frenchffdd6e42007-06-24 21:15:44 +000073 struct mid_q_entry *mid_entry;
Steve French39798772006-05-31 22:40:51 +000074
Steve French221601c2007-06-05 20:35:06 +000075 if (server == NULL)
Steve French39798772006-05-31 22:40:51 +000076 return;
77
Joe Perchesb6b38f72010-04-21 03:50:45 +000078 cERROR(1, "Dump pending requests:");
Steve French39798772006-05-31 22:40:51 +000079 spin_lock(&GlobalMid_Lock);
80 list_for_each(tmp, &server->pending_mid_q) {
81 mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
Joe Perchesb6b38f72010-04-21 03:50:45 +000082 cERROR(1, "State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
Steve Frenchad8b15f2008-08-08 21:10:16 +000083 mid_entry->midState,
84 (int)mid_entry->command,
85 mid_entry->pid,
86 mid_entry->tsk,
Joe Perchesb6b38f72010-04-21 03:50:45 +000087 mid_entry->mid);
Steve French39798772006-05-31 22:40:51 +000088#ifdef CONFIG_CIFS_STATS2
Joe Perchesb6b38f72010-04-21 03:50:45 +000089 cERROR(1, "IsLarge: %d buf: %p time rcv: %ld now: %ld",
Steve Frenchad8b15f2008-08-08 21:10:16 +000090 mid_entry->largeBuf,
91 mid_entry->resp_buf,
92 mid_entry->when_received,
Joe Perchesb6b38f72010-04-21 03:50:45 +000093 jiffies);
Steve French39798772006-05-31 22:40:51 +000094#endif /* STATS2 */
Joe Perchesb6b38f72010-04-21 03:50:45 +000095 cERROR(1, "IsMult: %d IsEnd: %d", mid_entry->multiRsp,
96 mid_entry->multiEnd);
Steve Frenchad8b15f2008-08-08 21:10:16 +000097 if (mid_entry->resp_buf) {
98 cifs_dump_detail(mid_entry->resp_buf);
99 cifs_dump_mem("existing buf: ",
100 mid_entry->resp_buf, 62);
Steve French39798772006-05-31 22:40:51 +0000101 }
102 }
103 spin_unlock(&GlobalMid_Lock);
104}
105#endif /* CONFIG_CIFS_DEBUG2 */
106
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107#ifdef CONFIG_PROC_FS
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000108static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109{
Jeff Laytonf1987b42008-11-15 11:12:47 -0500110 struct list_head *tmp1, *tmp2, *tmp3;
Steve Frenchffdd6e42007-06-24 21:15:44 +0000111 struct mid_q_entry *mid_entry;
Jeff Layton14fbf502008-11-14 13:53:46 -0500112 struct TCP_Server_Info *server;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 struct cifsSesInfo *ses;
114 struct cifsTconInfo *tcon;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500115 int i, j;
116 __u32 dev_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000118 seq_puts(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119 "Display Internal CIFS Data Structures for Debugging\n"
120 "---------------------------------------------------\n");
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000121 seq_printf(m, "CIFS Version %s\n", CIFS_VERSION);
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530122 seq_printf(m, "Features: ");
123#ifdef CONFIG_CIFS_DFS_UPCALL
124 seq_printf(m, "dfs");
125 seq_putc(m, ' ');
126#endif
127#ifdef CONFIG_CIFS_FSCACHE
128 seq_printf(m, "fscache");
129 seq_putc(m, ' ');
130#endif
131#ifdef CONFIG_CIFS_WEAK_PW_HASH
132 seq_printf(m, "lanman");
133 seq_putc(m, ' ');
134#endif
135#ifdef CONFIG_CIFS_POSIX
136 seq_printf(m, "posix");
137 seq_putc(m, ' ');
138#endif
139#ifdef CONFIG_CIFS_UPCALL
140 seq_printf(m, "spnego");
141 seq_putc(m, ' ');
142#endif
143#ifdef CONFIG_CIFS_XATTR
144 seq_printf(m, "xattr");
145#endif
146 seq_putc(m, '\n');
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000147 seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
148 seq_printf(m, "Servers:");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149
150 i = 0;
Jeff Layton14fbf502008-11-14 13:53:46 -0500151 read_lock(&cifs_tcp_ses_lock);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500152 list_for_each(tmp1, &cifs_tcp_ses_list) {
153 server = list_entry(tmp1, struct TCP_Server_Info,
Jeff Layton14fbf502008-11-14 13:53:46 -0500154 tcp_ses_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 i++;
Jeff Layton14fbf502008-11-14 13:53:46 -0500156 list_for_each(tmp2, &server->smb_ses_list) {
157 ses = list_entry(tmp2, struct cifsSesInfo,
158 smb_ses_list);
159 if ((ses->serverDomain == NULL) ||
160 (ses->serverOS == NULL) ||
161 (ses->serverNOS == NULL)) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500162 seq_printf(m, "\n%d) entry for %s not fully "
163 "displayed\n\t", i, ses->serverName);
Jeff Layton14fbf502008-11-14 13:53:46 -0500164 } else {
165 seq_printf(m,
Jeff Laytonf1987b42008-11-15 11:12:47 -0500166 "\n%d) Name: %s Domain: %s Uses: %d OS:"
167 " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
Steve French221601c2007-06-05 20:35:06 +0000168 " session status: %d\t",
Steve Frenchb8643e12005-04-28 22:41:07 -0700169 i, ses->serverName, ses->serverDomain,
Jeff Layton14fbf502008-11-14 13:53:46 -0500170 ses->ses_count, ses->serverOS, ses->serverNOS,
Steve French221601c2007-06-05 20:35:06 +0000171 ses->capabilities, ses->status);
Jeff Layton14fbf502008-11-14 13:53:46 -0500172 }
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000173 seq_printf(m, "TCP status: %d\n\tLocal Users To "
Jeff Layton14fbf502008-11-14 13:53:46 -0500174 "Server: %d SecMode: 0x%x Req On Wire: %d",
175 server->tcpStatus, server->srv_count,
176 server->secMode,
177 atomic_read(&server->inFlight));
Steve French131afd02005-10-07 09:51:05 -0700178
179#ifdef CONFIG_CIFS_STATS2
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000180 seq_printf(m, " In Send: %d In MaxReq Wait: %d",
Jeff Layton14fbf502008-11-14 13:53:46 -0500181 atomic_read(&server->inSend),
182 atomic_read(&server->num_waiters));
Steve French131afd02005-10-07 09:51:05 -0700183#endif
184
Jeff Laytonf1987b42008-11-15 11:12:47 -0500185 seq_puts(m, "\n\tShares:");
186 j = 0;
187 list_for_each(tmp3, &ses->tcon_list) {
188 tcon = list_entry(tmp3, struct cifsTconInfo,
189 tcon_list);
190 ++j;
191 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
192 seq_printf(m, "\n\t%d) %s Mounts: %d ", j,
193 tcon->treeName, tcon->tc_count);
194 if (tcon->nativeFileSystem) {
195 seq_printf(m, "Type: %s ",
196 tcon->nativeFileSystem);
197 }
198 seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x"
199 "\nPathComponentMax: %d Status: 0x%d",
200 le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
201 le32_to_cpu(tcon->fsAttrInfo.Attributes),
202 le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
203 tcon->tidStatus);
204 if (dev_type == FILE_DEVICE_DISK)
205 seq_puts(m, " type: DISK ");
206 else if (dev_type == FILE_DEVICE_CD_ROM)
207 seq_puts(m, " type: CDROM ");
208 else
209 seq_printf(m, " type: %d ", dev_type);
210
211 if (tcon->need_reconnect)
212 seq_puts(m, "\tDISCONNECTED ");
213 seq_putc(m, '\n');
214 }
215
216 seq_puts(m, "\n\tMIDs:\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
218 spin_lock(&GlobalMid_Lock);
Jeff Layton14fbf502008-11-14 13:53:46 -0500219 list_for_each(tmp3, &server->pending_mid_q) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500220 mid_entry = list_entry(tmp3, struct mid_q_entry,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 qhead);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500222 seq_printf(m, "\tState: %d com: %d pid:"
Steve Frenchad8b15f2008-08-08 21:10:16 +0000223 " %d tsk: %p mid %d\n",
224 mid_entry->midState,
225 (int)mid_entry->command,
226 mid_entry->pid,
227 mid_entry->tsk,
228 mid_entry->mid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 }
Steve French221601c2007-06-05 20:35:06 +0000230 spin_unlock(&GlobalMid_Lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 }
Jeff Layton14fbf502008-11-14 13:53:46 -0500233 read_unlock(&cifs_tcp_ses_lock);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000234 seq_putc(m, '\n');
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 /* BB add code to dump additional info such as TCP session info now */
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000237 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238}
239
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000240static int cifs_debug_data_proc_open(struct inode *inode, struct file *file)
241{
242 return single_open(file, cifs_debug_data_proc_show, NULL);
243}
Steve French1047abc2005-10-11 19:58:06 -0700244
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000245static const struct file_operations cifs_debug_data_proc_fops = {
246 .owner = THIS_MODULE,
247 .open = cifs_debug_data_proc_open,
248 .read = seq_read,
249 .llseek = seq_lseek,
250 .release = single_release,
251};
252
253#ifdef CONFIG_CIFS_STATS
254static ssize_t cifs_stats_proc_write(struct file *file,
255 const char __user *buffer, size_t count, loff_t *ppos)
Steve French1047abc2005-10-11 19:58:06 -0700256{
Steve French221601c2007-06-05 20:35:06 +0000257 char c;
258 int rc;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500259 struct list_head *tmp1, *tmp2, *tmp3;
260 struct TCP_Server_Info *server;
261 struct cifsSesInfo *ses;
Steve French1047abc2005-10-11 19:58:06 -0700262 struct cifsTconInfo *tcon;
263
Steve French221601c2007-06-05 20:35:06 +0000264 rc = get_user(c, buffer);
265 if (rc)
266 return rc;
Steve French1047abc2005-10-11 19:58:06 -0700267
Steve French221601c2007-06-05 20:35:06 +0000268 if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
Steve French4498eed2005-12-03 13:58:57 -0800269#ifdef CONFIG_CIFS_STATS2
270 atomic_set(&totBufAllocCount, 0);
271 atomic_set(&totSmBufAllocCount, 0);
272#endif /* CONFIG_CIFS_STATS2 */
Jeff Laytonf1987b42008-11-15 11:12:47 -0500273 read_lock(&cifs_tcp_ses_lock);
274 list_for_each(tmp1, &cifs_tcp_ses_list) {
275 server = list_entry(tmp1, struct TCP_Server_Info,
276 tcp_ses_list);
Steve Frenchc2b33822008-11-17 03:57:13 +0000277 list_for_each(tmp2, &server->smb_ses_list) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500278 ses = list_entry(tmp2, struct cifsSesInfo,
Steve Frenchc2b33822008-11-17 03:57:13 +0000279 smb_ses_list);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500280 list_for_each(tmp3, &ses->tcon_list) {
281 tcon = list_entry(tmp3,
282 struct cifsTconInfo,
283 tcon_list);
284 atomic_set(&tcon->num_smbs_sent, 0);
285 atomic_set(&tcon->num_writes, 0);
286 atomic_set(&tcon->num_reads, 0);
287 atomic_set(&tcon->num_oplock_brks, 0);
288 atomic_set(&tcon->num_opens, 0);
Steve French65bc98b2009-07-10 15:27:25 +0000289 atomic_set(&tcon->num_posixopens, 0);
290 atomic_set(&tcon->num_posixmkdirs, 0);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500291 atomic_set(&tcon->num_closes, 0);
292 atomic_set(&tcon->num_deletes, 0);
293 atomic_set(&tcon->num_mkdirs, 0);
294 atomic_set(&tcon->num_rmdirs, 0);
295 atomic_set(&tcon->num_renames, 0);
296 atomic_set(&tcon->num_t2renames, 0);
297 atomic_set(&tcon->num_ffirst, 0);
298 atomic_set(&tcon->num_fnext, 0);
299 atomic_set(&tcon->num_fclose, 0);
300 atomic_set(&tcon->num_hardlinks, 0);
301 atomic_set(&tcon->num_symlinks, 0);
302 atomic_set(&tcon->num_locks, 0);
303 }
304 }
Steve French1047abc2005-10-11 19:58:06 -0700305 }
Jeff Laytonf1987b42008-11-15 11:12:47 -0500306 read_unlock(&cifs_tcp_ses_lock);
Steve French1047abc2005-10-11 19:58:06 -0700307 }
308
Steve French221601c2007-06-05 20:35:06 +0000309 return count;
Steve French1047abc2005-10-11 19:58:06 -0700310}
311
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000312static int cifs_stats_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000314 int i;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500315 struct list_head *tmp1, *tmp2, *tmp3;
316 struct TCP_Server_Info *server;
317 struct cifsSesInfo *ses;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 struct cifsTconInfo *tcon;
319
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000320 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 "Resources in use\nCIFS Session: %d\n",
322 sesInfoAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000323 seq_printf(m, "Share (unique mount targets): %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 tconInfoAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000325 seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n",
Steve Frenchb8643e12005-04-28 22:41:07 -0700326 bufAllocCount.counter,
327 cifs_min_rcv + tcpSesAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000328 seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
Steve French221601c2007-06-05 20:35:06 +0000329 smBufAllocCount.counter, cifs_min_small);
Steve French07475ff2005-12-03 14:11:37 -0800330#ifdef CONFIG_CIFS_STATS2
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000331 seq_printf(m, "Total Large %d Small %d Allocations\n",
Steve French07475ff2005-12-03 14:11:37 -0800332 atomic_read(&totBufAllocCount),
Steve French221601c2007-06-05 20:35:06 +0000333 atomic_read(&totSmBufAllocCount));
Steve French07475ff2005-12-03 14:11:37 -0800334#endif /* CONFIG_CIFS_STATS2 */
335
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000336 seq_printf(m, "Operations (MIDs): %d\n", midCount.counter);
337 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 "\n%d session %d share reconnects\n",
Steve French221601c2007-06-05 20:35:06 +0000339 tcpSesReconnectCount.counter, tconInfoReconnectCount.counter);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000341 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 "Total vfs operations: %d maximum at one time: %d\n",
Steve French221601c2007-06-05 20:35:06 +0000343 GlobalCurrentXid, GlobalMaxActiveXid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344
345 i = 0;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500346 read_lock(&cifs_tcp_ses_lock);
347 list_for_each(tmp1, &cifs_tcp_ses_list) {
348 server = list_entry(tmp1, struct TCP_Server_Info,
349 tcp_ses_list);
350 list_for_each(tmp2, &server->smb_ses_list) {
351 ses = list_entry(tmp2, struct cifsSesInfo,
352 smb_ses_list);
353 list_for_each(tmp3, &ses->tcon_list) {
354 tcon = list_entry(tmp3,
355 struct cifsTconInfo,
356 tcon_list);
357 i++;
358 seq_printf(m, "\n%d) %s", i, tcon->treeName);
359 if (tcon->need_reconnect)
360 seq_puts(m, "\tDISCONNECTED ");
361 seq_printf(m, "\nSMBs: %d Oplock Breaks: %d",
362 atomic_read(&tcon->num_smbs_sent),
363 atomic_read(&tcon->num_oplock_brks));
364 seq_printf(m, "\nReads: %d Bytes: %lld",
365 atomic_read(&tcon->num_reads),
366 (long long)(tcon->bytes_read));
367 seq_printf(m, "\nWrites: %d Bytes: %lld",
368 atomic_read(&tcon->num_writes),
369 (long long)(tcon->bytes_written));
Steve Frenchb298f222009-02-21 21:17:43 +0000370 seq_printf(m, "\nFlushes: %d",
371 atomic_read(&tcon->num_flushes));
Jeff Laytonf1987b42008-11-15 11:12:47 -0500372 seq_printf(m, "\nLocks: %d HardLinks: %d "
373 "Symlinks: %d",
374 atomic_read(&tcon->num_locks),
375 atomic_read(&tcon->num_hardlinks),
376 atomic_read(&tcon->num_symlinks));
Steve French65bc98b2009-07-10 15:27:25 +0000377 seq_printf(m, "\nOpens: %d Closes: %d "
Jeff Laytonf1987b42008-11-15 11:12:47 -0500378 "Deletes: %d",
379 atomic_read(&tcon->num_opens),
380 atomic_read(&tcon->num_closes),
381 atomic_read(&tcon->num_deletes));
Steve French65bc98b2009-07-10 15:27:25 +0000382 seq_printf(m, "\nPosix Opens: %d "
383 "Posix Mkdirs: %d",
384 atomic_read(&tcon->num_posixopens),
385 atomic_read(&tcon->num_posixmkdirs));
Jeff Laytonf1987b42008-11-15 11:12:47 -0500386 seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
387 atomic_read(&tcon->num_mkdirs),
388 atomic_read(&tcon->num_rmdirs));
389 seq_printf(m, "\nRenames: %d T2 Renames %d",
390 atomic_read(&tcon->num_renames),
391 atomic_read(&tcon->num_t2renames));
392 seq_printf(m, "\nFindFirst: %d FNext %d "
393 "FClose %d",
394 atomic_read(&tcon->num_ffirst),
395 atomic_read(&tcon->num_fnext),
396 atomic_read(&tcon->num_fclose));
397 }
398 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 }
Jeff Laytonf1987b42008-11-15 11:12:47 -0500400 read_unlock(&cifs_tcp_ses_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000402 seq_putc(m, '\n');
403 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000405
406static int cifs_stats_proc_open(struct inode *inode, struct file *file)
407{
408 return single_open(file, cifs_stats_proc_show, NULL);
409}
410
411static const struct file_operations cifs_stats_proc_fops = {
412 .owner = THIS_MODULE,
413 .open = cifs_stats_proc_open,
414 .read = seq_read,
415 .llseek = seq_lseek,
416 .release = single_release,
417 .write = cifs_stats_proc_write,
418};
Steve French90c81e02008-02-12 20:32:36 +0000419#endif /* STATS */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421static struct proc_dir_entry *proc_fs_cifs;
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000422static const struct file_operations cifsFYI_proc_fops;
423static const struct file_operations cifs_oplock_proc_fops;
424static const struct file_operations cifs_lookup_cache_proc_fops;
425static const struct file_operations traceSMB_proc_fops;
426static const struct file_operations cifs_multiuser_mount_proc_fops;
427static const struct file_operations cifs_security_flags_proc_fops;
428static const struct file_operations cifs_experimental_proc_fops;
429static const struct file_operations cifs_linux_ext_proc_fops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430
431void
432cifs_proc_init(void)
433{
Alexey Dobriyan36a5aeb2008-04-29 01:01:42 -0700434 proc_fs_cifs = proc_mkdir("fs/cifs", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 if (proc_fs_cifs == NULL)
436 return;
437
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000438 proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439
440#ifdef CONFIG_CIFS_STATS
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000441 proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops);
Steve French90c81e02008-02-12 20:32:36 +0000442#endif /* STATS */
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000443 proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops);
444 proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops);
445 proc_create("OplockEnabled", 0, proc_fs_cifs, &cifs_oplock_proc_fops);
Steve French99b1f5b2008-07-24 02:37:45 +0000446 proc_create("Experimental", 0, proc_fs_cifs,
447 &cifs_experimental_proc_fops);
448 proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs,
449 &cifs_linux_ext_proc_fops);
450 proc_create("MultiuserMount", 0, proc_fs_cifs,
451 &cifs_multiuser_mount_proc_fops);
452 proc_create("SecurityFlags", 0, proc_fs_cifs,
453 &cifs_security_flags_proc_fops);
454 proc_create("LookupCacheEnabled", 0, proc_fs_cifs,
455 &cifs_lookup_cache_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456}
457
458void
459cifs_proc_clean(void)
460{
461 if (proc_fs_cifs == NULL)
462 return;
463
464 remove_proc_entry("DebugData", proc_fs_cifs);
465 remove_proc_entry("cifsFYI", proc_fs_cifs);
466 remove_proc_entry("traceSMB", proc_fs_cifs);
467#ifdef CONFIG_CIFS_STATS
468 remove_proc_entry("Stats", proc_fs_cifs);
469#endif
470 remove_proc_entry("MultiuserMount", proc_fs_cifs);
471 remove_proc_entry("OplockEnabled", proc_fs_cifs);
Steve French221601c2007-06-05 20:35:06 +0000472 remove_proc_entry("SecurityFlags", proc_fs_cifs);
Steve French221601c2007-06-05 20:35:06 +0000473 remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
474 remove_proc_entry("Experimental", proc_fs_cifs);
475 remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
Alexey Dobriyan36a5aeb2008-04-29 01:01:42 -0700476 remove_proc_entry("fs/cifs", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477}
478
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000479static int cifsFYI_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000481 seq_printf(m, "%d\n", cifsFYI);
482 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000484
485static int cifsFYI_proc_open(struct inode *inode, struct file *file)
486{
487 return single_open(file, cifsFYI_proc_show, NULL);
488}
489
490static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
491 size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492{
493 char c;
494 int rc;
495
496 rc = get_user(c, buffer);
497 if (rc)
498 return rc;
499 if (c == '0' || c == 'n' || c == 'N')
500 cifsFYI = 0;
501 else if (c == '1' || c == 'y' || c == 'Y')
502 cifsFYI = 1;
Steve French221601c2007-06-05 20:35:06 +0000503 else if ((c > '1') && (c <= '9'))
Steve French1047abc2005-10-11 19:58:06 -0700504 cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505
506 return count;
507}
508
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000509static const struct file_operations cifsFYI_proc_fops = {
510 .owner = THIS_MODULE,
511 .open = cifsFYI_proc_open,
512 .read = seq_read,
513 .llseek = seq_lseek,
514 .release = single_release,
515 .write = cifsFYI_proc_write,
516};
517
518static int cifs_oplock_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000520 seq_printf(m, "%d\n", oplockEnabled);
521 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000523
524static int cifs_oplock_proc_open(struct inode *inode, struct file *file)
525{
526 return single_open(file, cifs_oplock_proc_show, NULL);
527}
528
529static ssize_t cifs_oplock_proc_write(struct file *file,
530 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531{
532 char c;
533 int rc;
534
535 rc = get_user(c, buffer);
536 if (rc)
537 return rc;
538 if (c == '0' || c == 'n' || c == 'N')
539 oplockEnabled = 0;
540 else if (c == '1' || c == 'y' || c == 'Y')
541 oplockEnabled = 1;
542
543 return count;
544}
545
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000546static const struct file_operations cifs_oplock_proc_fops = {
547 .owner = THIS_MODULE,
548 .open = cifs_oplock_proc_open,
549 .read = seq_read,
550 .llseek = seq_lseek,
551 .release = single_release,
552 .write = cifs_oplock_proc_write,
553};
554
555static int cifs_experimental_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000557 seq_printf(m, "%d\n", experimEnabled);
558 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000560
561static int cifs_experimental_proc_open(struct inode *inode, struct file *file)
562{
563 return single_open(file, cifs_experimental_proc_show, NULL);
564}
565
566static ssize_t cifs_experimental_proc_write(struct file *file,
567 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568{
Steve Frenchec637e32005-12-12 20:53:18 -0800569 char c;
570 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571
Steve Frenchec637e32005-12-12 20:53:18 -0800572 rc = get_user(c, buffer);
573 if (rc)
574 return rc;
575 if (c == '0' || c == 'n' || c == 'N')
576 experimEnabled = 0;
577 else if (c == '1' || c == 'y' || c == 'Y')
578 experimEnabled = 1;
579 else if (c == '2')
580 experimEnabled = 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581
Steve Frenchec637e32005-12-12 20:53:18 -0800582 return count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700583}
584
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000585static const struct file_operations cifs_experimental_proc_fops = {
586 .owner = THIS_MODULE,
587 .open = cifs_experimental_proc_open,
588 .read = seq_read,
589 .llseek = seq_lseek,
590 .release = single_release,
591 .write = cifs_experimental_proc_write,
592};
593
594static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000596 seq_printf(m, "%d\n", linuxExtEnabled);
597 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000599
600static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file)
601{
602 return single_open(file, cifs_linux_ext_proc_show, NULL);
603}
604
605static ssize_t cifs_linux_ext_proc_write(struct file *file,
606 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607{
Steve French221601c2007-06-05 20:35:06 +0000608 char c;
609 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610
Steve French221601c2007-06-05 20:35:06 +0000611 rc = get_user(c, buffer);
612 if (rc)
613 return rc;
614 if (c == '0' || c == 'n' || c == 'N')
615 linuxExtEnabled = 0;
616 else if (c == '1' || c == 'y' || c == 'Y')
617 linuxExtEnabled = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618
Steve French221601c2007-06-05 20:35:06 +0000619 return count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620}
621
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000622static const struct file_operations cifs_linux_ext_proc_fops = {
623 .owner = THIS_MODULE,
624 .open = cifs_linux_ext_proc_open,
625 .read = seq_read,
626 .llseek = seq_lseek,
627 .release = single_release,
628 .write = cifs_linux_ext_proc_write,
629};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000631static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000633 seq_printf(m, "%d\n", lookupCacheEnabled);
634 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000636
637static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file)
638{
639 return single_open(file, cifs_lookup_cache_proc_show, NULL);
640}
641
642static ssize_t cifs_lookup_cache_proc_write(struct file *file,
643 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644{
645 char c;
646 int rc;
647
648 rc = get_user(c, buffer);
649 if (rc)
650 return rc;
651 if (c == '0' || c == 'n' || c == 'N')
652 lookupCacheEnabled = 0;
653 else if (c == '1' || c == 'y' || c == 'Y')
654 lookupCacheEnabled = 1;
655
656 return count;
657}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000658
659static const struct file_operations cifs_lookup_cache_proc_fops = {
660 .owner = THIS_MODULE,
661 .open = cifs_lookup_cache_proc_open,
662 .read = seq_read,
663 .llseek = seq_lseek,
664 .release = single_release,
665 .write = cifs_lookup_cache_proc_write,
666};
667
668static int traceSMB_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000670 seq_printf(m, "%d\n", traceSMB);
671 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000673
674static int traceSMB_proc_open(struct inode *inode, struct file *file)
675{
676 return single_open(file, traceSMB_proc_show, NULL);
677}
678
679static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
680 size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700681{
682 char c;
683 int rc;
684
685 rc = get_user(c, buffer);
686 if (rc)
687 return rc;
688 if (c == '0' || c == 'n' || c == 'N')
689 traceSMB = 0;
690 else if (c == '1' || c == 'y' || c == 'Y')
691 traceSMB = 1;
692
693 return count;
694}
695
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000696static const struct file_operations traceSMB_proc_fops = {
697 .owner = THIS_MODULE,
698 .open = traceSMB_proc_open,
699 .read = seq_read,
700 .llseek = seq_lseek,
701 .release = single_release,
702 .write = traceSMB_proc_write,
703};
704
705static int cifs_multiuser_mount_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000707 seq_printf(m, "%d\n", multiuser_mount);
708 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000710
Steve French99b1f5b2008-07-24 02:37:45 +0000711static int cifs_multiuser_mount_proc_open(struct inode *inode, struct file *fh)
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000712{
Steve French99b1f5b2008-07-24 02:37:45 +0000713 return single_open(fh, cifs_multiuser_mount_proc_show, NULL);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000714}
715
716static ssize_t cifs_multiuser_mount_proc_write(struct file *file,
717 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718{
719 char c;
720 int rc;
721
722 rc = get_user(c, buffer);
723 if (rc)
724 return rc;
725 if (c == '0' || c == 'n' || c == 'N')
726 multiuser_mount = 0;
727 else if (c == '1' || c == 'y' || c == 'Y')
728 multiuser_mount = 1;
729
730 return count;
731}
732
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000733static const struct file_operations cifs_multiuser_mount_proc_fops = {
734 .owner = THIS_MODULE,
735 .open = cifs_multiuser_mount_proc_open,
736 .read = seq_read,
737 .llseek = seq_lseek,
738 .release = single_release,
739 .write = cifs_multiuser_mount_proc_write,
740};
741
742static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743{
Jeff Layton04912d62010-04-24 07:57:45 -0400744 seq_printf(m, "0x%x\n", global_secflags);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000745 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000747
748static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
749{
750 return single_open(file, cifs_security_flags_proc_show, NULL);
751}
752
753static ssize_t cifs_security_flags_proc_write(struct file *file,
754 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755{
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000756 unsigned int flags;
757 char flags_string[12];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758 char c;
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000759
Steve French221601c2007-06-05 20:35:06 +0000760 if ((count < 1) || (count > 11))
Steve French39798772006-05-31 22:40:51 +0000761 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000763 memset(flags_string, 0, 12);
Steve French39798772006-05-31 22:40:51 +0000764
Steve French221601c2007-06-05 20:35:06 +0000765 if (copy_from_user(flags_string, buffer, count))
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000766 return -EFAULT;
Steve French39798772006-05-31 22:40:51 +0000767
Steve French221601c2007-06-05 20:35:06 +0000768 if (count < 3) {
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000769 /* single char or single char followed by null */
770 c = flags_string[0];
Steve Frencha0136892007-10-04 20:05:09 +0000771 if (c == '0' || c == 'n' || c == 'N') {
Jeff Layton04912d62010-04-24 07:57:45 -0400772 global_secflags = CIFSSEC_DEF; /* default */
Steve Frencha0136892007-10-04 20:05:09 +0000773 return count;
774 } else if (c == '1' || c == 'y' || c == 'Y') {
Jeff Layton04912d62010-04-24 07:57:45 -0400775 global_secflags = CIFSSEC_MAX;
Steve Frencha0136892007-10-04 20:05:09 +0000776 return count;
777 } else if (!isdigit(c)) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000778 cERROR(1, "invalid flag %c", c);
Steve Frencha0136892007-10-04 20:05:09 +0000779 return -EINVAL;
780 }
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000781 }
782 /* else we have a number */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000784 flags = simple_strtoul(flags_string, NULL, 0);
785
Joe Perchesb6b38f72010-04-21 03:50:45 +0000786 cFYI(1, "sec flags 0x%x", flags);
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000787
Steve French221601c2007-06-05 20:35:06 +0000788 if (flags <= 0) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000789 cERROR(1, "invalid security flags %s", flags_string);
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000790 return -EINVAL;
791 }
792
Steve French221601c2007-06-05 20:35:06 +0000793 if (flags & ~CIFSSEC_MASK) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000794 cERROR(1, "attempt to set unsupported security flags 0x%x",
795 flags & ~CIFSSEC_MASK);
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000796 return -EINVAL;
797 }
798 /* flags look ok - update the global security flags for cifs module */
Jeff Layton04912d62010-04-24 07:57:45 -0400799 global_secflags = flags;
800 if (global_secflags & CIFSSEC_MUST_SIGN) {
Steve French762e5ab2007-06-28 18:41:42 +0000801 /* requiring signing implies signing is allowed */
Jeff Layton04912d62010-04-24 07:57:45 -0400802 global_secflags |= CIFSSEC_MAY_SIGN;
Joe Perchesb6b38f72010-04-21 03:50:45 +0000803 cFYI(1, "packet signing now required");
Jeff Layton04912d62010-04-24 07:57:45 -0400804 } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000805 cFYI(1, "packet signing disabled");
Steve French762e5ab2007-06-28 18:41:42 +0000806 }
807 /* BB should we turn on MAY flags for other MUST options? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808 return count;
809}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000810
811static const struct file_operations cifs_security_flags_proc_fops = {
812 .owner = THIS_MODULE,
813 .open = cifs_security_flags_proc_open,
814 .read = seq_read,
815 .llseek = seq_lseek,
816 .release = single_release,
817 .write = cifs_security_flags_proc_write,
818};
Steve French90c81e02008-02-12 20:32:36 +0000819#else
Steve Frenche086fce2008-02-18 04:03:58 +0000820inline void cifs_proc_init(void)
Steve French90c81e02008-02-12 20:32:36 +0000821{
822}
823
Steve Frenche086fce2008-02-18 04:03:58 +0000824inline void cifs_proc_clean(void)
Steve French90c81e02008-02-12 20:32:36 +0000825{
826}
827#endif /* PROC_FS */