4 * Copyright (C) International Business Machines Corp., 2000,2005
6 * Modified by Steve French (sfrench@us.ibm.com)
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
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * 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.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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>
30 #include "cifsproto.h"
31 #include "cifs_debug.h"
35 cifs_dump_mem(char *label
, void *data
, int length
)
40 char buf
[10], line
[80];
42 printk(KERN_DEBUG
"%s: dump of %d bytes of data at 0x%p\n\n",
44 for (i
= 0; i
< length
; i
+= 16) {
46 for (j
= 0; (j
< 4) && (i
+ j
* 4 < length
); j
++) {
47 sprintf(buf
, " %08x", intptr
[i
/ 4 + j
]);
52 for (j
= 0; (j
< 16) && (i
+ j
< length
); j
++) {
53 buf
[1] = isprint(charptr
[i
+ j
]) ? charptr
[i
+ j
] : '.';
56 printk(KERN_DEBUG
"%s\n", line
);
62 cifs_debug_data_read(char *buf
, char **beginBuffer
, off_t offset
,
63 int count
, int *eof
, void *data
)
65 struct list_head
*tmp
;
66 struct list_head
*tmp1
;
67 struct mid_q_entry
* mid_entry
;
68 struct cifsSesInfo
*ses
;
69 struct cifsTconInfo
*tcon
;
72 char * original_buf
= buf
;
74 *beginBuffer
= buf
+ offset
;
79 "Display Internal CIFS Data Structures for Debugging\n"
80 "---------------------------------------------------\n");
82 length
= sprintf(buf
,"CIFS Version %s\n",CIFS_VERSION
);
84 length
= sprintf(buf
, "Servers:");
88 read_lock(&GlobalSMBSeslock
);
89 list_for_each(tmp
, &GlobalSMBSessionList
) {
91 ses
= list_entry(tmp
, struct cifsSesInfo
, cifsSessionList
);
92 if((ses
->serverDomain
== NULL
) || (ses
->serverOS
== NULL
) ||
93 (ses
->serverNOS
== NULL
)) {
94 buf
+= sprintf("\nentry for %s not fully displayed\n\t",
100 "\n%d) Name: %s Domain: %s Mounts: %d ServerOS: %s \n\tServerNOS: %s\tCapabilities: 0x%x\n\tSMB session status: %d\t",
101 i
, ses
->serverName
, ses
->serverDomain
,
102 atomic_read(&ses
->inUse
),
103 ses
->serverOS
, ses
->serverNOS
,
104 ses
->capabilities
,ses
->status
);
108 buf
+= sprintf(buf
, "TCP status: %d\n\tLocal Users To Server: %d SecMode: 0x%x Req Active: %d",
109 ses
->server
->tcpStatus
,
110 atomic_read(&ses
->server
->socketUseCount
),
111 ses
->server
->secMode
,
112 atomic_read(&ses
->server
->inFlight
));
114 length
= sprintf(buf
, "\nMIDs:\n");
117 spin_lock(&GlobalMid_Lock
);
118 list_for_each(tmp1
, &ses
->server
->pending_mid_q
) {
119 mid_entry
= list_entry(tmp1
, struct
123 length
= sprintf(buf
,"State: %d com: %d pid: %d tsk: %p mid %d\n",
125 (int)mid_entry
->command
,
132 spin_unlock(&GlobalMid_Lock
);
136 read_unlock(&GlobalSMBSeslock
);
140 length
= sprintf(buf
, "Shares:");
144 read_lock(&GlobalSMBSeslock
);
145 list_for_each(tmp
, &GlobalTreeConnectionList
) {
148 tcon
= list_entry(tmp
, struct cifsTconInfo
, cifsConnectionList
);
149 dev_type
= le32_to_cpu(tcon
->fsDevInfo
.DeviceType
);
152 "\n%d) %s Uses: %d Type: %s Characteristics: 0x%x Attributes: 0x%x\nPathComponentMax: %d Status: %d",
154 atomic_read(&tcon
->useCount
),
155 tcon
->nativeFileSystem
,
156 le32_to_cpu(tcon
->fsDevInfo
.DeviceCharacteristics
),
157 le32_to_cpu(tcon
->fsAttrInfo
.Attributes
),
158 le32_to_cpu(tcon
->fsAttrInfo
.MaxPathNameComponentLength
),
161 if (dev_type
== FILE_DEVICE_DISK
)
162 length
= sprintf(buf
, " type: DISK ");
163 else if (dev_type
== FILE_DEVICE_CD_ROM
)
164 length
= sprintf(buf
, " type: CDROM ");
167 sprintf(buf
, " type: %d ", dev_type
);
169 if(tcon
->tidStatus
== CifsNeedReconnect
) {
170 buf
+= sprintf(buf
, "\tDISCONNECTED ");
174 read_unlock(&GlobalSMBSeslock
);
176 length
= sprintf(buf
, "\n");
179 /* BB add code to dump additional info such as TCP session info now */
180 /* Now calculate total size of returned data */
181 length
= buf
- original_buf
;
183 if(offset
+ count
>= length
)
185 if(length
< offset
) {
189 length
= length
- offset
;
197 #ifdef CONFIG_CIFS_STATS
199 cifs_stats_read(char *buf
, char **beginBuffer
, off_t offset
,
200 int count
, int *eof
, void *data
)
202 int item_length
,i
,length
;
203 struct list_head
*tmp
;
204 struct cifsTconInfo
*tcon
;
206 *beginBuffer
= buf
+ offset
;
208 length
= sprintf(buf
,
209 "Resources in use\nCIFS Session: %d\n",
210 sesInfoAllocCount
.counter
);
213 sprintf(buf
,"Share (unique mount targets): %d\n",
214 tconInfoAllocCount
.counter
);
215 length
+= item_length
;
218 sprintf(buf
,"SMB Request/Response Buffer: %d Pool size: %d\n",
219 bufAllocCount
.counter
,
220 cifs_min_rcv
+ tcpSesAllocCount
.counter
);
221 length
+= item_length
;
224 sprintf(buf
,"SMB Small Req/Resp Buffer: %d Pool size: %d\n",
225 smBufAllocCount
.counter
,cifs_min_small
);
226 length
+= item_length
;
229 sprintf(buf
,"Operations (MIDs): %d\n",
231 length
+= item_length
;
233 item_length
= sprintf(buf
,
234 "\n%d session %d share reconnects\n",
235 tcpSesReconnectCount
.counter
,tconInfoReconnectCount
.counter
);
236 length
+= item_length
;
239 item_length
= sprintf(buf
,
240 "Total vfs operations: %d maximum at one time: %d\n",
241 GlobalCurrentXid
,GlobalMaxActiveXid
);
242 length
+= item_length
;
246 read_lock(&GlobalSMBSeslock
);
247 list_for_each(tmp
, &GlobalTreeConnectionList
) {
249 tcon
= list_entry(tmp
, struct cifsTconInfo
, cifsConnectionList
);
250 item_length
= sprintf(buf
,"\n%d) %s",i
, tcon
->treeName
);
252 length
+= item_length
;
253 if(tcon
->tidStatus
== CifsNeedReconnect
) {
254 buf
+= sprintf(buf
, "\tDISCONNECTED ");
257 item_length
= sprintf(buf
,"\nSMBs: %d Oplock Breaks: %d",
258 atomic_read(&tcon
->num_smbs_sent
),
259 atomic_read(&tcon
->num_oplock_brks
));
261 length
+= item_length
;
262 item_length
= sprintf(buf
,"\nReads: %d Bytes %lld",
263 atomic_read(&tcon
->num_reads
),
264 (long long)(tcon
->bytes_read
));
266 length
+= item_length
;
267 item_length
= sprintf(buf
,"\nWrites: %d Bytes: %lld",
268 atomic_read(&tcon
->num_writes
),
269 (long long)(tcon
->bytes_written
));
271 length
+= item_length
;
272 item_length
= sprintf(buf
,
273 "\nOpens: %d Deletes: %d\nMkdirs: %d Rmdirs: %d",
274 atomic_read(&tcon
->num_opens
),
275 atomic_read(&tcon
->num_deletes
),
276 atomic_read(&tcon
->num_mkdirs
),
277 atomic_read(&tcon
->num_rmdirs
));
279 length
+= item_length
;
280 item_length
= sprintf(buf
,
281 "\nRenames: %d T2 Renames %d",
282 atomic_read(&tcon
->num_renames
),
283 atomic_read(&tcon
->num_t2renames
));
285 length
+= item_length
;
287 read_unlock(&GlobalSMBSeslock
);
289 buf
+= sprintf(buf
,"\n");
292 if(offset
+ count
>= length
)
294 if(length
< offset
) {
298 length
= length
- offset
;
307 static struct proc_dir_entry
*proc_fs_cifs
;
308 read_proc_t cifs_txanchor_read
;
309 static read_proc_t cifsFYI_read
;
310 static write_proc_t cifsFYI_write
;
311 static read_proc_t oplockEnabled_read
;
312 static write_proc_t oplockEnabled_write
;
313 static read_proc_t lookupFlag_read
;
314 static write_proc_t lookupFlag_write
;
315 static read_proc_t traceSMB_read
;
316 static write_proc_t traceSMB_write
;
317 static read_proc_t multiuser_mount_read
;
318 static write_proc_t multiuser_mount_write
;
319 static read_proc_t extended_security_read
;
320 static write_proc_t extended_security_write
;
321 static read_proc_t ntlmv2_enabled_read
;
322 static write_proc_t ntlmv2_enabled_write
;
323 static read_proc_t packet_signing_enabled_read
;
324 static write_proc_t packet_signing_enabled_write
;
325 static read_proc_t quotaEnabled_read
;
326 static write_proc_t quotaEnabled_write
;
327 static read_proc_t linuxExtensionsEnabled_read
;
328 static write_proc_t linuxExtensionsEnabled_write
;
333 struct proc_dir_entry
*pde
;
335 proc_fs_cifs
= proc_mkdir("cifs", proc_root_fs
);
336 if (proc_fs_cifs
== NULL
)
339 proc_fs_cifs
->owner
= THIS_MODULE
;
340 create_proc_read_entry("DebugData", 0, proc_fs_cifs
,
341 cifs_debug_data_read
, NULL
);
343 #ifdef CONFIG_CIFS_STATS
344 create_proc_read_entry("Stats", 0, proc_fs_cifs
,
345 cifs_stats_read
, NULL
);
347 pde
= create_proc_read_entry("cifsFYI", 0, proc_fs_cifs
,
350 pde
->write_proc
= cifsFYI_write
;
353 create_proc_read_entry("traceSMB", 0, proc_fs_cifs
,
354 traceSMB_read
, NULL
);
356 pde
->write_proc
= traceSMB_write
;
358 pde
= create_proc_read_entry("OplockEnabled", 0, proc_fs_cifs
,
359 oplockEnabled_read
, NULL
);
361 pde
->write_proc
= oplockEnabled_write
;
363 pde
= create_proc_read_entry("ReenableOldCifsReaddirCode", 0, proc_fs_cifs
,
364 quotaEnabled_read
, NULL
);
366 pde
->write_proc
= quotaEnabled_write
;
368 pde
= create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs
,
369 linuxExtensionsEnabled_read
, NULL
);
371 pde
->write_proc
= linuxExtensionsEnabled_write
;
374 create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs
,
375 multiuser_mount_read
, NULL
);
377 pde
->write_proc
= multiuser_mount_write
;
380 create_proc_read_entry("ExtendedSecurity", 0, proc_fs_cifs
,
381 extended_security_read
, NULL
);
383 pde
->write_proc
= extended_security_write
;
386 create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs
,
387 lookupFlag_read
, NULL
);
389 pde
->write_proc
= lookupFlag_write
;
392 create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs
,
393 ntlmv2_enabled_read
, NULL
);
395 pde
->write_proc
= ntlmv2_enabled_write
;
398 create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs
,
399 packet_signing_enabled_read
, NULL
);
401 pde
->write_proc
= packet_signing_enabled_write
;
405 cifs_proc_clean(void)
407 if (proc_fs_cifs
== NULL
)
410 remove_proc_entry("DebugData", proc_fs_cifs
);
411 remove_proc_entry("cifsFYI", proc_fs_cifs
);
412 remove_proc_entry("traceSMB", proc_fs_cifs
);
413 #ifdef CONFIG_CIFS_STATS
414 remove_proc_entry("Stats", proc_fs_cifs
);
416 remove_proc_entry("MultiuserMount", proc_fs_cifs
);
417 remove_proc_entry("OplockEnabled", proc_fs_cifs
);
418 remove_proc_entry("NTLMV2Enabled",proc_fs_cifs
);
419 remove_proc_entry("ExtendedSecurity",proc_fs_cifs
);
420 remove_proc_entry("PacketSigningEnabled",proc_fs_cifs
);
421 remove_proc_entry("LinuxExtensionsEnabled",proc_fs_cifs
);
422 remove_proc_entry("ReenableOldCifsReaddirCode",proc_fs_cifs
);
423 remove_proc_entry("LookupCacheEnabled",proc_fs_cifs
);
424 remove_proc_entry("cifs", proc_root_fs
);
428 cifsFYI_read(char *page
, char **start
, off_t off
, int count
,
429 int *eof
, void *data
)
433 len
= sprintf(page
, "%d\n", cifsFYI
);
449 cifsFYI_write(struct file
*file
, const char __user
*buffer
,
450 unsigned long count
, void *data
)
455 rc
= get_user(c
, buffer
);
458 if (c
== '0' || c
== 'n' || c
== 'N')
460 else if (c
== '1' || c
== 'y' || c
== 'Y')
467 oplockEnabled_read(char *page
, char **start
, off_t off
,
468 int count
, int *eof
, void *data
)
472 len
= sprintf(page
, "%d\n", oplockEnabled
);
488 oplockEnabled_write(struct file
*file
, const char __user
*buffer
,
489 unsigned long count
, void *data
)
494 rc
= get_user(c
, buffer
);
497 if (c
== '0' || c
== 'n' || c
== 'N')
499 else if (c
== '1' || c
== 'y' || c
== 'Y')
506 quotaEnabled_read(char *page
, char **start
, off_t off
,
507 int count
, int *eof
, void *data
)
511 len
= sprintf(page
, "%d\n", experimEnabled
);
512 /* could also check if quotas are enabled in kernel
528 quotaEnabled_write(struct file
*file
, const char __user
*buffer
,
529 unsigned long count
, void *data
)
534 rc
= get_user(c
, buffer
);
537 if (c
== '0' || c
== 'n' || c
== 'N')
539 else if (c
== '1' || c
== 'y' || c
== 'Y')
546 linuxExtensionsEnabled_read(char *page
, char **start
, off_t off
,
547 int count
, int *eof
, void *data
)
551 len
= sprintf(page
, "%d\n", linuxExtEnabled
);
552 /* could also check if quotas are enabled in kernel
568 linuxExtensionsEnabled_write(struct file
*file
, const char __user
*buffer
,
569 unsigned long count
, void *data
)
574 rc
= get_user(c
, buffer
);
577 if (c
== '0' || c
== 'n' || c
== 'N')
579 else if (c
== '1' || c
== 'y' || c
== 'Y')
587 lookupFlag_read(char *page
, char **start
, off_t off
,
588 int count
, int *eof
, void *data
)
592 len
= sprintf(page
, "%d\n", lookupCacheEnabled
);
608 lookupFlag_write(struct file
*file
, const char __user
*buffer
,
609 unsigned long count
, void *data
)
614 rc
= get_user(c
, buffer
);
617 if (c
== '0' || c
== 'n' || c
== 'N')
618 lookupCacheEnabled
= 0;
619 else if (c
== '1' || c
== 'y' || c
== 'Y')
620 lookupCacheEnabled
= 1;
625 traceSMB_read(char *page
, char **start
, off_t off
, int count
,
626 int *eof
, void *data
)
630 len
= sprintf(page
, "%d\n", traceSMB
);
646 traceSMB_write(struct file
*file
, const char __user
*buffer
,
647 unsigned long count
, void *data
)
652 rc
= get_user(c
, buffer
);
655 if (c
== '0' || c
== 'n' || c
== 'N')
657 else if (c
== '1' || c
== 'y' || c
== 'Y')
664 multiuser_mount_read(char *page
, char **start
, off_t off
,
665 int count
, int *eof
, void *data
)
669 len
= sprintf(page
, "%d\n", multiuser_mount
);
685 multiuser_mount_write(struct file
*file
, const char __user
*buffer
,
686 unsigned long count
, void *data
)
691 rc
= get_user(c
, buffer
);
694 if (c
== '0' || c
== 'n' || c
== 'N')
696 else if (c
== '1' || c
== 'y' || c
== 'Y')
703 extended_security_read(char *page
, char **start
, off_t off
,
704 int count
, int *eof
, void *data
)
708 len
= sprintf(page
, "%d\n", extended_security
);
724 extended_security_write(struct file
*file
, const char __user
*buffer
,
725 unsigned long count
, void *data
)
730 rc
= get_user(c
, buffer
);
733 if (c
== '0' || c
== 'n' || c
== 'N')
734 extended_security
= 0;
735 else if (c
== '1' || c
== 'y' || c
== 'Y')
736 extended_security
= 1;
742 ntlmv2_enabled_read(char *page
, char **start
, off_t off
,
743 int count
, int *eof
, void *data
)
747 len
= sprintf(page
, "%d\n", ntlmv2_support
);
763 ntlmv2_enabled_write(struct file
*file
, const char __user
*buffer
,
764 unsigned long count
, void *data
)
769 rc
= get_user(c
, buffer
);
772 if (c
== '0' || c
== 'n' || c
== 'N')
774 else if (c
== '1' || c
== 'y' || c
== 'Y')
781 packet_signing_enabled_read(char *page
, char **start
, off_t off
,
782 int count
, int *eof
, void *data
)
786 len
= sprintf(page
, "%d\n", sign_CIFS_PDUs
);
802 packet_signing_enabled_write(struct file
*file
, const char __user
*buffer
,
803 unsigned long count
, void *data
)
808 rc
= get_user(c
, buffer
);
811 if (c
== '0' || c
== 'n' || c
== 'N')
813 else if (c
== '1' || c
== 'y' || c
== 'Y')