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(void *buf
)
63 struct smb_hdr
*smb
= (struct smb_hdr
*)buf
;
65 cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d",
66 smb
->Command
, smb
->Status
.CifsError
,
67 smb
->Flags
, smb
->Flags2
, smb
->Mid
, smb
->Pid
);
68 cERROR(1, "smb buf %p len %d", smb
, smbCalcSize(smb
));
71 void cifs_dump_mids(struct TCP_Server_Info
*server
)
73 struct list_head
*tmp
;
74 struct mid_q_entry
*mid_entry
;
79 cERROR(1, "Dump pending requests:");
80 spin_lock(&GlobalMid_Lock
);
81 list_for_each(tmp
, &server
->pending_mid_q
) {
82 mid_entry
= list_entry(tmp
, struct mid_q_entry
, qhead
);
83 cERROR(1, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu",
85 le16_to_cpu(mid_entry
->command
),
87 mid_entry
->callback_data
,
89 #ifdef CONFIG_CIFS_STATS2
90 cERROR(1, "IsLarge: %d buf: %p time rcv: %ld now: %ld",
93 mid_entry
->when_received
,
96 cERROR(1, "IsMult: %d IsEnd: %d", mid_entry
->multiRsp
,
98 if (mid_entry
->resp_buf
) {
99 cifs_dump_detail(mid_entry
->resp_buf
);
100 cifs_dump_mem("existing buf: ",
101 mid_entry
->resp_buf
, 62);
104 spin_unlock(&GlobalMid_Lock
);
106 #endif /* CONFIG_CIFS_DEBUG2 */
108 #ifdef CONFIG_PROC_FS
109 static int cifs_debug_data_proc_show(struct seq_file
*m
, void *v
)
111 struct list_head
*tmp1
, *tmp2
, *tmp3
;
112 struct mid_q_entry
*mid_entry
;
113 struct TCP_Server_Info
*server
;
114 struct cifs_ses
*ses
;
115 struct cifs_tcon
*tcon
;
120 "Display Internal CIFS Data Structures for Debugging\n"
121 "---------------------------------------------------\n");
122 seq_printf(m
, "CIFS Version %s\n", CIFS_VERSION
);
123 seq_printf(m
, "Features:");
124 #ifdef CONFIG_CIFS_DFS_UPCALL
125 seq_printf(m
, " dfs");
127 #ifdef CONFIG_CIFS_FSCACHE
128 seq_printf(m
, " fscache");
130 #ifdef CONFIG_CIFS_WEAK_PW_HASH
131 seq_printf(m
, " lanman");
133 #ifdef CONFIG_CIFS_POSIX
134 seq_printf(m
, " posix");
136 #ifdef CONFIG_CIFS_UPCALL
137 seq_printf(m
, " spnego");
139 #ifdef CONFIG_CIFS_XATTR
140 seq_printf(m
, " xattr");
142 #ifdef CONFIG_CIFS_ACL
143 seq_printf(m
, " acl");
146 seq_printf(m
, "Active VFS Requests: %d\n", GlobalTotalActiveXid
);
147 seq_printf(m
, "Servers:");
150 spin_lock(&cifs_tcp_ses_lock
);
151 list_for_each(tmp1
, &cifs_tcp_ses_list
) {
152 server
= list_entry(tmp1
, struct TCP_Server_Info
,
155 list_for_each(tmp2
, &server
->smb_ses_list
) {
156 ses
= list_entry(tmp2
, struct cifs_ses
,
158 if ((ses
->serverDomain
== NULL
) ||
159 (ses
->serverOS
== NULL
) ||
160 (ses
->serverNOS
== NULL
)) {
161 seq_printf(m
, "\n%d) entry for %s not fully "
162 "displayed\n\t", i
, ses
->serverName
);
165 "\n%d) Name: %s Domain: %s Uses: %d OS:"
166 " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
167 " session status: %d\t",
168 i
, ses
->serverName
, ses
->serverDomain
,
169 ses
->ses_count
, ses
->serverOS
, ses
->serverNOS
,
170 ses
->capabilities
, ses
->status
);
172 seq_printf(m
, "TCP status: %d\n\tLocal Users To "
173 "Server: %d SecMode: 0x%x Req On Wire: %d",
174 server
->tcpStatus
, server
->srv_count
,
175 server
->sec_mode
, in_flight(server
));
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 %llu\n",
222 mid_entry
->mid_state
,
223 le16_to_cpu(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_lookup_cache_proc_fops
;
422 static const struct file_operations traceSMB_proc_fops
;
423 static const struct file_operations cifs_multiuser_mount_proc_fops
;
424 static const struct file_operations cifs_security_flags_proc_fops
;
425 static const struct file_operations cifs_linux_ext_proc_fops
;
430 proc_fs_cifs
= proc_mkdir("fs/cifs", NULL
);
431 if (proc_fs_cifs
== NULL
)
434 proc_create("DebugData", 0, proc_fs_cifs
, &cifs_debug_data_proc_fops
);
436 #ifdef CONFIG_CIFS_STATS
437 proc_create("Stats", 0, proc_fs_cifs
, &cifs_stats_proc_fops
);
439 proc_create("cifsFYI", 0, proc_fs_cifs
, &cifsFYI_proc_fops
);
440 proc_create("traceSMB", 0, proc_fs_cifs
, &traceSMB_proc_fops
);
441 proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs
,
442 &cifs_linux_ext_proc_fops
);
443 proc_create("MultiuserMount", 0, proc_fs_cifs
,
444 &cifs_multiuser_mount_proc_fops
);
445 proc_create("SecurityFlags", 0, proc_fs_cifs
,
446 &cifs_security_flags_proc_fops
);
447 proc_create("LookupCacheEnabled", 0, proc_fs_cifs
,
448 &cifs_lookup_cache_proc_fops
);
452 cifs_proc_clean(void)
454 if (proc_fs_cifs
== NULL
)
457 remove_proc_entry("DebugData", proc_fs_cifs
);
458 remove_proc_entry("cifsFYI", proc_fs_cifs
);
459 remove_proc_entry("traceSMB", proc_fs_cifs
);
460 #ifdef CONFIG_CIFS_STATS
461 remove_proc_entry("Stats", proc_fs_cifs
);
463 remove_proc_entry("MultiuserMount", proc_fs_cifs
);
464 remove_proc_entry("SecurityFlags", proc_fs_cifs
);
465 remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs
);
466 remove_proc_entry("LookupCacheEnabled", proc_fs_cifs
);
467 remove_proc_entry("fs/cifs", NULL
);
470 static int cifsFYI_proc_show(struct seq_file
*m
, void *v
)
472 seq_printf(m
, "%d\n", cifsFYI
);
476 static int cifsFYI_proc_open(struct inode
*inode
, struct file
*file
)
478 return single_open(file
, cifsFYI_proc_show
, NULL
);
481 static ssize_t
cifsFYI_proc_write(struct file
*file
, const char __user
*buffer
,
482 size_t count
, loff_t
*ppos
)
487 rc
= get_user(c
, buffer
);
490 if (c
== '0' || c
== 'n' || c
== 'N')
492 else if (c
== '1' || c
== 'y' || c
== 'Y')
494 else if ((c
> '1') && (c
<= '9'))
495 cifsFYI
= (int) (c
- '0'); /* see cifs_debug.h for meanings */
500 static const struct file_operations cifsFYI_proc_fops
= {
501 .owner
= THIS_MODULE
,
502 .open
= cifsFYI_proc_open
,
505 .release
= single_release
,
506 .write
= cifsFYI_proc_write
,
509 static int cifs_linux_ext_proc_show(struct seq_file
*m
, void *v
)
511 seq_printf(m
, "%d\n", linuxExtEnabled
);
515 static int cifs_linux_ext_proc_open(struct inode
*inode
, struct file
*file
)
517 return single_open(file
, cifs_linux_ext_proc_show
, NULL
);
520 static ssize_t
cifs_linux_ext_proc_write(struct file
*file
,
521 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
526 rc
= get_user(c
, buffer
);
529 if (c
== '0' || c
== 'n' || c
== 'N')
531 else if (c
== '1' || c
== 'y' || c
== 'Y')
537 static const struct file_operations cifs_linux_ext_proc_fops
= {
538 .owner
= THIS_MODULE
,
539 .open
= cifs_linux_ext_proc_open
,
542 .release
= single_release
,
543 .write
= cifs_linux_ext_proc_write
,
546 static int cifs_lookup_cache_proc_show(struct seq_file
*m
, void *v
)
548 seq_printf(m
, "%d\n", lookupCacheEnabled
);
552 static int cifs_lookup_cache_proc_open(struct inode
*inode
, struct file
*file
)
554 return single_open(file
, cifs_lookup_cache_proc_show
, NULL
);
557 static ssize_t
cifs_lookup_cache_proc_write(struct file
*file
,
558 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
563 rc
= get_user(c
, buffer
);
566 if (c
== '0' || c
== 'n' || c
== 'N')
567 lookupCacheEnabled
= 0;
568 else if (c
== '1' || c
== 'y' || c
== 'Y')
569 lookupCacheEnabled
= 1;
574 static const struct file_operations cifs_lookup_cache_proc_fops
= {
575 .owner
= THIS_MODULE
,
576 .open
= cifs_lookup_cache_proc_open
,
579 .release
= single_release
,
580 .write
= cifs_lookup_cache_proc_write
,
583 static int traceSMB_proc_show(struct seq_file
*m
, void *v
)
585 seq_printf(m
, "%d\n", traceSMB
);
589 static int traceSMB_proc_open(struct inode
*inode
, struct file
*file
)
591 return single_open(file
, traceSMB_proc_show
, NULL
);
594 static ssize_t
traceSMB_proc_write(struct file
*file
, const char __user
*buffer
,
595 size_t count
, loff_t
*ppos
)
600 rc
= get_user(c
, buffer
);
603 if (c
== '0' || c
== 'n' || c
== 'N')
605 else if (c
== '1' || c
== 'y' || c
== 'Y')
611 static const struct file_operations traceSMB_proc_fops
= {
612 .owner
= THIS_MODULE
,
613 .open
= traceSMB_proc_open
,
616 .release
= single_release
,
617 .write
= traceSMB_proc_write
,
620 static int cifs_multiuser_mount_proc_show(struct seq_file
*m
, void *v
)
622 seq_printf(m
, "%d\n", multiuser_mount
);
626 static int cifs_multiuser_mount_proc_open(struct inode
*inode
, struct file
*fh
)
628 return single_open(fh
, cifs_multiuser_mount_proc_show
, NULL
);
631 static ssize_t
cifs_multiuser_mount_proc_write(struct file
*file
,
632 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
638 rc
= get_user(c
, buffer
);
641 if (c
== '0' || c
== 'n' || c
== 'N')
643 else if (c
== '1' || c
== 'y' || c
== 'Y') {
647 printk(KERN_WARNING
"CIFS VFS: The legacy multiuser "
648 "mount code is scheduled to be deprecated in "
649 "3.5. Please switch to using the multiuser "
657 static const struct file_operations cifs_multiuser_mount_proc_fops
= {
658 .owner
= THIS_MODULE
,
659 .open
= cifs_multiuser_mount_proc_open
,
662 .release
= single_release
,
663 .write
= cifs_multiuser_mount_proc_write
,
666 static int cifs_security_flags_proc_show(struct seq_file
*m
, void *v
)
668 seq_printf(m
, "0x%x\n", global_secflags
);
672 static int cifs_security_flags_proc_open(struct inode
*inode
, struct file
*file
)
674 return single_open(file
, cifs_security_flags_proc_show
, NULL
);
677 static ssize_t
cifs_security_flags_proc_write(struct file
*file
,
678 const char __user
*buffer
, size_t count
, loff_t
*ppos
)
681 char flags_string
[12];
684 if ((count
< 1) || (count
> 11))
687 memset(flags_string
, 0, 12);
689 if (copy_from_user(flags_string
, buffer
, count
))
693 /* single char or single char followed by null */
695 if (c
== '0' || c
== 'n' || c
== 'N') {
696 global_secflags
= CIFSSEC_DEF
; /* default */
698 } else if (c
== '1' || c
== 'y' || c
== 'Y') {
699 global_secflags
= CIFSSEC_MAX
;
701 } else if (!isdigit(c
)) {
702 cERROR(1, "invalid flag %c", c
);
706 /* else we have a number */
708 flags
= simple_strtoul(flags_string
, NULL
, 0);
710 cFYI(1, "sec flags 0x%x", flags
);
713 cERROR(1, "invalid security flags %s", flags_string
);
717 if (flags
& ~CIFSSEC_MASK
) {
718 cERROR(1, "attempt to set unsupported security flags 0x%x",
719 flags
& ~CIFSSEC_MASK
);
722 /* flags look ok - update the global security flags for cifs module */
723 global_secflags
= flags
;
724 if (global_secflags
& CIFSSEC_MUST_SIGN
) {
725 /* requiring signing implies signing is allowed */
726 global_secflags
|= CIFSSEC_MAY_SIGN
;
727 cFYI(1, "packet signing now required");
728 } else if ((global_secflags
& CIFSSEC_MAY_SIGN
) == 0) {
729 cFYI(1, "packet signing disabled");
731 /* BB should we turn on MAY flags for other MUST options? */
735 static const struct file_operations cifs_security_flags_proc_fops
= {
736 .owner
= THIS_MODULE
,
737 .open
= cifs_security_flags_proc_open
,
740 .release
= single_release
,
741 .write
= cifs_security_flags_proc_write
,
744 inline void cifs_proc_init(void)
748 inline void cifs_proc_clean(void)