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",
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
);
60 #ifdef CONFIG_CIFS_DEBUG2
61 void cifs_dump_detail(struct smb_hdr
*smb
)
63 cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
64 smb
->Command
, smb
->Status
.CifsError
,
65 smb
->Flags
, smb
->Flags2
, smb
->Mid
, smb
->Pid
);
66 cERROR(1, "smb buf %p len %d", smb
, smbCalcSize(smb
));
70 void cifs_dump_mids(struct TCP_Server_Info
*server
)
72 struct list_head
*tmp
;
73 struct mid_q_entry
*mid_entry
;
78 cERROR(1, "Dump pending requests:");
79 spin_lock(&GlobalMid_Lock
);
80 list_for_each(tmp
, &server
->pending_mid_q
) {
81 mid_entry
= list_entry(tmp
, struct mid_q_entry
, qhead
);
82 cERROR(1, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %d",
84 (int)mid_entry
->command
,
86 mid_entry
->callback_data
,
88 #ifdef CONFIG_CIFS_STATS2
89 cERROR(1, "IsLarge: %d buf: %p time rcv: %ld now: %ld",
92 mid_entry
->when_received
,
95 cERROR(1, "IsMult: %d IsEnd: %d", mid_entry
->multiRsp
,
97 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);
103 spin_unlock(&GlobalMid_Lock
);
105 #endif /* CONFIG_CIFS_DEBUG2 */
107 #ifdef CONFIG_PROC_FS
108 static int cifs_debug_data_proc_show(struct seq_file
*m
, void *v
)
110 struct list_head
*tmp1
, *tmp2
, *tmp3
;
111 struct mid_q_entry
*mid_entry
;
112 struct TCP_Server_Info
*server
;
113 struct cifs_ses
*ses
;
114 struct cifs_tcon
*tcon
;
119 "Display Internal CIFS Data Structures for Debugging\n"
120 "---------------------------------------------------\n");
121 seq_printf(m
, "CIFS Version %s\n", CIFS_VERSION
);
122 seq_printf(m
, "Features:");
123 #ifdef CONFIG_CIFS_DFS_UPCALL
124 seq_printf(m
, " dfs");
126 #ifdef CONFIG_CIFS_FSCACHE
127 seq_printf(m
, " fscache");
129 #ifdef CONFIG_CIFS_WEAK_PW_HASH
130 seq_printf(m
, " lanman");
132 #ifdef CONFIG_CIFS_POSIX
133 seq_printf(m
, " posix");
135 #ifdef CONFIG_CIFS_UPCALL
136 seq_printf(m
, " spnego");
138 #ifdef CONFIG_CIFS_XATTR
139 seq_printf(m
, " xattr");
141 #ifdef CONFIG_CIFS_ACL
142 seq_printf(m
, " acl");
145 seq_printf(m
, "Active VFS Requests: %d\n", GlobalTotalActiveXid
);
146 seq_printf(m
, "Servers:");
149 spin_lock(&cifs_tcp_ses_lock
);
150 list_for_each(tmp1
, &cifs_tcp_ses_list
) {
151 server
= list_entry(tmp1
, struct TCP_Server_Info
,
154 list_for_each(tmp2
, &server
->smb_ses_list
) {
155 ses
= list_entry(tmp2
, struct cifs_ses
,
157 if ((ses
->serverDomain
== NULL
) ||
158 (ses
->serverOS
== NULL
) ||
159 (ses
->serverNOS
== NULL
)) {
160 seq_printf(m
, "\n%d) entry for %s not fully "
161 "displayed\n\t", i
, ses
->serverName
);
164 "\n%d) Name: %s Domain: %s Uses: %d OS:"
165 " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
166 " session status: %d\t",
167 i
, ses
->serverName
, ses
->serverDomain
,
168 ses
->ses_count
, ses
->serverOS
, ses
->serverNOS
,
169 ses
->capabilities
, ses
->status
);
171 seq_printf(m
, "TCP status: %d\n\tLocal Users To "
172 "Server: %d SecMode: 0x%x Req On Wire: %d",
173 server
->tcpStatus
, server
->srv_count
,
175 atomic_read(&server
->inFlight
));
177 #ifdef CONFIG_CIFS_STATS2
178 seq_printf(m
, " In Send: %d In MaxReq Wait: %d",
179 atomic_read(&server
->in_send
),
180 atomic_read(&server
->num_waiters
));
183 seq_puts(m
, "\n\tShares:");
185 list_for_each(tmp3
, &ses
->tcon_list
) {
186 tcon
= list_entry(tmp3
, struct cifs_tcon
,
189 dev_type
= le32_to_cpu(tcon
->fsDevInfo
.DeviceType
);
190 seq_printf(m
, "\n\t%d) %s Mounts: %d ", j
,
191 tcon
->treeName
, tcon
->tc_count
);
192 if (tcon
->nativeFileSystem
) {
193 seq_printf(m
, "Type: %s ",
194 tcon
->nativeFileSystem
);
196 seq_printf(m
, "DevInfo: 0x%x Attributes: 0x%x"
197 "\nPathComponentMax: %d Status: 0x%d",
198 le32_to_cpu(tcon
->fsDevInfo
.DeviceCharacteristics
),
199 le32_to_cpu(tcon
->fsAttrInfo
.Attributes
),
200 le32_to_cpu(tcon
->fsAttrInfo
.MaxPathNameComponentLength
),
202 if (dev_type
== FILE_DEVICE_DISK
)
203 seq_puts(m
, " type: DISK ");
204 else if (dev_type
== FILE_DEVICE_CD_ROM
)
205 seq_puts(m
, " type: CDROM ");
207 seq_printf(m
, " type: %d ", dev_type
);
209 if (tcon
->need_reconnect
)
210 seq_puts(m
, "\tDISCONNECTED ");
214 seq_puts(m
, "\n\tMIDs:\n");
216 spin_lock(&GlobalMid_Lock
);
217 list_for_each(tmp3
, &server
->pending_mid_q
) {
218 mid_entry
= list_entry(tmp3
, struct mid_q_entry
,
220 seq_printf(m
, "\tState: %d com: %d pid:"
221 " %d cbdata: %p mid %d\n",
223 (int)mid_entry
->command
,
225 mid_entry
->callback_data
,
228 spin_unlock(&GlobalMid_Lock
);
231 spin_unlock(&cifs_tcp_ses_lock
);
234 /* BB add code to dump additional info such as TCP session info now */
238 static int cifs_debug_data_proc_open(struct inode
*inode
, struct file
*file
)
240 return single_open(file
, cifs_debug_data_proc_show
, NULL
);
243 static const struct file_operations cifs_debug_data_proc_fops
= {
244 .owner
= THIS_MODULE
,
245 .open
= cifs_debug_data_proc_open
,
248 .release
= single_release
,
251 #ifdef CONFIG_CIFS_STATS
252 static ssize_t
cifs_stats_proc_write(struct file
*file
,
253 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
257 struct list_head
*tmp1
, *tmp2
, *tmp3
;
258 struct TCP_Server_Info
*server
;
259 struct cifs_ses
*ses
;
260 struct cifs_tcon
*tcon
;
262 rc
= get_user(c
, buffer
);
266 if (c
== '1' || c
== 'y' || c
== 'Y' || c
== '0') {
267 #ifdef CONFIG_CIFS_STATS2
268 atomic_set(&totBufAllocCount
, 0);
269 atomic_set(&totSmBufAllocCount
, 0);
270 #endif /* CONFIG_CIFS_STATS2 */
271 spin_lock(&cifs_tcp_ses_lock
);
272 list_for_each(tmp1
, &cifs_tcp_ses_list
) {
273 server
= list_entry(tmp1
, struct TCP_Server_Info
,
275 list_for_each(tmp2
, &server
->smb_ses_list
) {
276 ses
= list_entry(tmp2
, struct cifs_ses
,
278 list_for_each(tmp3
, &ses
->tcon_list
) {
279 tcon
= list_entry(tmp3
,
282 atomic_set(&tcon
->num_smbs_sent
, 0);
283 atomic_set(&tcon
->num_writes
, 0);
284 atomic_set(&tcon
->num_reads
, 0);
285 atomic_set(&tcon
->num_oplock_brks
, 0);
286 atomic_set(&tcon
->num_opens
, 0);
287 atomic_set(&tcon
->num_posixopens
, 0);
288 atomic_set(&tcon
->num_posixmkdirs
, 0);
289 atomic_set(&tcon
->num_closes
, 0);
290 atomic_set(&tcon
->num_deletes
, 0);
291 atomic_set(&tcon
->num_mkdirs
, 0);
292 atomic_set(&tcon
->num_rmdirs
, 0);
293 atomic_set(&tcon
->num_renames
, 0);
294 atomic_set(&tcon
->num_t2renames
, 0);
295 atomic_set(&tcon
->num_ffirst
, 0);
296 atomic_set(&tcon
->num_fnext
, 0);
297 atomic_set(&tcon
->num_fclose
, 0);
298 atomic_set(&tcon
->num_hardlinks
, 0);
299 atomic_set(&tcon
->num_symlinks
, 0);
300 atomic_set(&tcon
->num_locks
, 0);
304 spin_unlock(&cifs_tcp_ses_lock
);
310 static int cifs_stats_proc_show(struct seq_file
*m
, void *v
)
313 struct list_head
*tmp1
, *tmp2
, *tmp3
;
314 struct TCP_Server_Info
*server
;
315 struct cifs_ses
*ses
;
316 struct cifs_tcon
*tcon
;
319 "Resources in use\nCIFS Session: %d\n",
320 sesInfoAllocCount
.counter
);
321 seq_printf(m
, "Share (unique mount targets): %d\n",
322 tconInfoAllocCount
.counter
);
323 seq_printf(m
, "SMB Request/Response Buffer: %d Pool size: %d\n",
324 bufAllocCount
.counter
,
325 cifs_min_rcv
+ tcpSesAllocCount
.counter
);
326 seq_printf(m
, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
327 smBufAllocCount
.counter
, cifs_min_small
);
328 #ifdef CONFIG_CIFS_STATS2
329 seq_printf(m
, "Total Large %d Small %d Allocations\n",
330 atomic_read(&totBufAllocCount
),
331 atomic_read(&totSmBufAllocCount
));
332 #endif /* CONFIG_CIFS_STATS2 */
334 seq_printf(m
, "Operations (MIDs): %d\n", atomic_read(&midCount
));
336 "\n%d session %d share reconnects\n",
337 tcpSesReconnectCount
.counter
, tconInfoReconnectCount
.counter
);
340 "Total vfs operations: %d maximum at one time: %d\n",
341 GlobalCurrentXid
, GlobalMaxActiveXid
);
344 spin_lock(&cifs_tcp_ses_lock
);
345 list_for_each(tmp1
, &cifs_tcp_ses_list
) {
346 server
= list_entry(tmp1
, struct TCP_Server_Info
,
348 list_for_each(tmp2
, &server
->smb_ses_list
) {
349 ses
= list_entry(tmp2
, struct cifs_ses
,
351 list_for_each(tmp3
, &ses
->tcon_list
) {
352 tcon
= list_entry(tmp3
,
356 seq_printf(m
, "\n%d) %s", i
, tcon
->treeName
);
357 if (tcon
->need_reconnect
)
358 seq_puts(m
, "\tDISCONNECTED ");
359 seq_printf(m
, "\nSMBs: %d Oplock Breaks: %d",
360 atomic_read(&tcon
->num_smbs_sent
),
361 atomic_read(&tcon
->num_oplock_brks
));
362 seq_printf(m
, "\nReads: %d Bytes: %lld",
363 atomic_read(&tcon
->num_reads
),
364 (long long)(tcon
->bytes_read
));
365 seq_printf(m
, "\nWrites: %d Bytes: %lld",
366 atomic_read(&tcon
->num_writes
),
367 (long long)(tcon
->bytes_written
));
368 seq_printf(m
, "\nFlushes: %d",
369 atomic_read(&tcon
->num_flushes
));
370 seq_printf(m
, "\nLocks: %d HardLinks: %d "
372 atomic_read(&tcon
->num_locks
),
373 atomic_read(&tcon
->num_hardlinks
),
374 atomic_read(&tcon
->num_symlinks
));
375 seq_printf(m
, "\nOpens: %d Closes: %d "
377 atomic_read(&tcon
->num_opens
),
378 atomic_read(&tcon
->num_closes
),
379 atomic_read(&tcon
->num_deletes
));
380 seq_printf(m
, "\nPosix Opens: %d "
382 atomic_read(&tcon
->num_posixopens
),
383 atomic_read(&tcon
->num_posixmkdirs
));
384 seq_printf(m
, "\nMkdirs: %d Rmdirs: %d",
385 atomic_read(&tcon
->num_mkdirs
),
386 atomic_read(&tcon
->num_rmdirs
));
387 seq_printf(m
, "\nRenames: %d T2 Renames %d",
388 atomic_read(&tcon
->num_renames
),
389 atomic_read(&tcon
->num_t2renames
));
390 seq_printf(m
, "\nFindFirst: %d FNext %d "
392 atomic_read(&tcon
->num_ffirst
),
393 atomic_read(&tcon
->num_fnext
),
394 atomic_read(&tcon
->num_fclose
));
398 spin_unlock(&cifs_tcp_ses_lock
);
404 static int cifs_stats_proc_open(struct inode
*inode
, struct file
*file
)
406 return single_open(file
, cifs_stats_proc_show
, NULL
);
409 static const struct file_operations cifs_stats_proc_fops
= {
410 .owner
= THIS_MODULE
,
411 .open
= cifs_stats_proc_open
,
414 .release
= single_release
,
415 .write
= cifs_stats_proc_write
,
419 static struct proc_dir_entry
*proc_fs_cifs
;
420 static const struct file_operations cifsFYI_proc_fops
;
421 static const struct file_operations cifs_oplock_proc_fops
;
422 static const struct file_operations cifs_lookup_cache_proc_fops
;
423 static const struct file_operations traceSMB_proc_fops
;
424 static const struct file_operations cifs_multiuser_mount_proc_fops
;
425 static const struct file_operations cifs_security_flags_proc_fops
;
426 static const struct file_operations cifs_linux_ext_proc_fops
;
431 proc_fs_cifs
= proc_mkdir("fs/cifs", NULL
);
432 if (proc_fs_cifs
== NULL
)
435 proc_create("DebugData", 0, proc_fs_cifs
, &cifs_debug_data_proc_fops
);
437 #ifdef CONFIG_CIFS_STATS
438 proc_create("Stats", 0, proc_fs_cifs
, &cifs_stats_proc_fops
);
440 proc_create("cifsFYI", 0, proc_fs_cifs
, &cifsFYI_proc_fops
);
441 proc_create("traceSMB", 0, proc_fs_cifs
, &traceSMB_proc_fops
);
442 proc_create("OplockEnabled", 0, proc_fs_cifs
, &cifs_oplock_proc_fops
);
443 proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs
,
444 &cifs_linux_ext_proc_fops
);
445 proc_create("MultiuserMount", 0, proc_fs_cifs
,
446 &cifs_multiuser_mount_proc_fops
);
447 proc_create("SecurityFlags", 0, proc_fs_cifs
,
448 &cifs_security_flags_proc_fops
);
449 proc_create("LookupCacheEnabled", 0, proc_fs_cifs
,
450 &cifs_lookup_cache_proc_fops
);
454 cifs_proc_clean(void)
456 if (proc_fs_cifs
== NULL
)
459 remove_proc_entry("DebugData", proc_fs_cifs
);
460 remove_proc_entry("cifsFYI", proc_fs_cifs
);
461 remove_proc_entry("traceSMB", proc_fs_cifs
);
462 #ifdef CONFIG_CIFS_STATS
463 remove_proc_entry("Stats", proc_fs_cifs
);
465 remove_proc_entry("MultiuserMount", proc_fs_cifs
);
466 remove_proc_entry("OplockEnabled", proc_fs_cifs
);
467 remove_proc_entry("SecurityFlags", proc_fs_cifs
);
468 remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs
);
469 remove_proc_entry("LookupCacheEnabled", proc_fs_cifs
);
470 remove_proc_entry("fs/cifs", NULL
);
473 static int cifsFYI_proc_show(struct seq_file
*m
, void *v
)
475 seq_printf(m
, "%d\n", cifsFYI
);
479 static int cifsFYI_proc_open(struct inode
*inode
, struct file
*file
)
481 return single_open(file
, cifsFYI_proc_show
, NULL
);
484 static ssize_t
cifsFYI_proc_write(struct file
*file
, const char __user
*buffer
,
485 size_t count
, loff_t
*ppos
)
490 rc
= get_user(c
, buffer
);
493 if (c
== '0' || c
== 'n' || c
== 'N')
495 else if (c
== '1' || c
== 'y' || c
== 'Y')
497 else if ((c
> '1') && (c
<= '9'))
498 cifsFYI
= (int) (c
- '0'); /* see cifs_debug.h for meanings */
503 static const struct file_operations cifsFYI_proc_fops
= {
504 .owner
= THIS_MODULE
,
505 .open
= cifsFYI_proc_open
,
508 .release
= single_release
,
509 .write
= cifsFYI_proc_write
,
512 static int cifs_oplock_proc_show(struct seq_file
*m
, void *v
)
514 seq_printf(m
, "%d\n", oplockEnabled
);
518 static int cifs_oplock_proc_open(struct inode
*inode
, struct file
*file
)
520 return single_open(file
, cifs_oplock_proc_show
, NULL
);
523 static ssize_t
cifs_oplock_proc_write(struct file
*file
,
524 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
529 rc
= get_user(c
, buffer
);
532 if (c
== '0' || c
== 'n' || c
== 'N')
534 else if (c
== '1' || c
== 'y' || c
== 'Y')
540 static const struct file_operations cifs_oplock_proc_fops
= {
541 .owner
= THIS_MODULE
,
542 .open
= cifs_oplock_proc_open
,
545 .release
= single_release
,
546 .write
= cifs_oplock_proc_write
,
549 static int cifs_linux_ext_proc_show(struct seq_file
*m
, void *v
)
551 seq_printf(m
, "%d\n", linuxExtEnabled
);
555 static int cifs_linux_ext_proc_open(struct inode
*inode
, struct file
*file
)
557 return single_open(file
, cifs_linux_ext_proc_show
, NULL
);
560 static ssize_t
cifs_linux_ext_proc_write(struct file
*file
,
561 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
566 rc
= get_user(c
, buffer
);
569 if (c
== '0' || c
== 'n' || c
== 'N')
571 else if (c
== '1' || c
== 'y' || c
== 'Y')
577 static const struct file_operations cifs_linux_ext_proc_fops
= {
578 .owner
= THIS_MODULE
,
579 .open
= cifs_linux_ext_proc_open
,
582 .release
= single_release
,
583 .write
= cifs_linux_ext_proc_write
,
586 static int cifs_lookup_cache_proc_show(struct seq_file
*m
, void *v
)
588 seq_printf(m
, "%d\n", lookupCacheEnabled
);
592 static int cifs_lookup_cache_proc_open(struct inode
*inode
, struct file
*file
)
594 return single_open(file
, cifs_lookup_cache_proc_show
, NULL
);
597 static ssize_t
cifs_lookup_cache_proc_write(struct file
*file
,
598 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
603 rc
= get_user(c
, buffer
);
606 if (c
== '0' || c
== 'n' || c
== 'N')
607 lookupCacheEnabled
= 0;
608 else if (c
== '1' || c
== 'y' || c
== 'Y')
609 lookupCacheEnabled
= 1;
614 static const struct file_operations cifs_lookup_cache_proc_fops
= {
615 .owner
= THIS_MODULE
,
616 .open
= cifs_lookup_cache_proc_open
,
619 .release
= single_release
,
620 .write
= cifs_lookup_cache_proc_write
,
623 static int traceSMB_proc_show(struct seq_file
*m
, void *v
)
625 seq_printf(m
, "%d\n", traceSMB
);
629 static int traceSMB_proc_open(struct inode
*inode
, struct file
*file
)
631 return single_open(file
, traceSMB_proc_show
, NULL
);
634 static ssize_t
traceSMB_proc_write(struct file
*file
, const char __user
*buffer
,
635 size_t count
, loff_t
*ppos
)
640 rc
= get_user(c
, buffer
);
643 if (c
== '0' || c
== 'n' || c
== 'N')
645 else if (c
== '1' || c
== 'y' || c
== 'Y')
651 static const struct file_operations traceSMB_proc_fops
= {
652 .owner
= THIS_MODULE
,
653 .open
= traceSMB_proc_open
,
656 .release
= single_release
,
657 .write
= traceSMB_proc_write
,
660 static int cifs_multiuser_mount_proc_show(struct seq_file
*m
, void *v
)
662 seq_printf(m
, "%d\n", multiuser_mount
);
666 static int cifs_multiuser_mount_proc_open(struct inode
*inode
, struct file
*fh
)
668 return single_open(fh
, cifs_multiuser_mount_proc_show
, NULL
);
671 static ssize_t
cifs_multiuser_mount_proc_write(struct file
*file
,
672 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
677 rc
= get_user(c
, buffer
);
680 if (c
== '0' || c
== 'n' || c
== 'N')
682 else if (c
== '1' || c
== 'y' || c
== 'Y')
688 static const struct file_operations cifs_multiuser_mount_proc_fops
= {
689 .owner
= THIS_MODULE
,
690 .open
= cifs_multiuser_mount_proc_open
,
693 .release
= single_release
,
694 .write
= cifs_multiuser_mount_proc_write
,
697 static int cifs_security_flags_proc_show(struct seq_file
*m
, void *v
)
699 seq_printf(m
, "0x%x\n", global_secflags
);
703 static int cifs_security_flags_proc_open(struct inode
*inode
, struct file
*file
)
705 return single_open(file
, cifs_security_flags_proc_show
, NULL
);
708 static ssize_t
cifs_security_flags_proc_write(struct file
*file
,
709 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
712 char flags_string
[12];
715 memset(flags_string
, 0, 12);
722 if (copy_from_user(flags_string
, buffer
, count
))
726 /* single char or single char followed by null */
728 if (c
== '0' || c
== 'n' || c
== 'N') {
729 global_secflags
= CIFSSEC_DEF
; /* default */
731 } else if (c
== '1' || c
== 'y' || c
== 'Y') {
732 global_secflags
= CIFSSEC_MAX
;
734 } else if (!isdigit(c
)) {
735 cERROR(1, "invalid flag %c", c
);
739 /* else we have a number */
741 flags
= simple_strtoul(flags_string
, NULL
, 0);
743 cFYI(1, "sec flags 0x%x", flags
);
746 cERROR(1, "invalid security flags %s", flags_string
);
750 if (flags
& ~CIFSSEC_MASK
) {
751 cERROR(1, "attempt to set unsupported security flags 0x%x",
752 flags
& ~CIFSSEC_MASK
);
755 /* flags look ok - update the global security flags for cifs module */
756 global_secflags
= flags
;
757 if (global_secflags
& CIFSSEC_MUST_SIGN
) {
758 /* requiring signing implies signing is allowed */
759 global_secflags
|= CIFSSEC_MAY_SIGN
;
760 cFYI(1, "packet signing now required");
761 } else if ((global_secflags
& CIFSSEC_MAY_SIGN
) == 0) {
762 cFYI(1, "packet signing disabled");
764 /* BB should we turn on MAY flags for other MUST options? */
768 static const struct file_operations cifs_security_flags_proc_fops
= {
769 .owner
= THIS_MODULE
,
770 .open
= cifs_security_flags_proc_open
,
773 .release
= single_release
,
774 .write
= cifs_security_flags_proc_write
,
777 inline void cifs_proc_init(void)
781 inline void cifs_proc_clean(void)