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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);
Jeff Layton820a8032011-05-04 08:05:26 -040066 cERROR(1, "smb buf %p len %d", smb, smbCalcSize(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);
Jeff Layton2b84a36c2011-01-11 07:24:21 -050082 cERROR(1, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %d",
Steve Frenchad8b15f2008-08-08 21:10:16 +000083 mid_entry->midState,
84 (int)mid_entry->command,
85 mid_entry->pid,
Jeff Layton2b84a36c2011-01-11 07:24:21 -050086 mid_entry->callback_data,
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;
Steve French96daf2b2011-05-27 04:34:02 +0000113 struct cifs_ses *ses;
114 struct cifs_tcon *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);
Jeff Laytonca40b712011-01-07 11:30:29 -0500122 seq_printf(m, "Features:");
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530123#ifdef CONFIG_CIFS_DFS_UPCALL
Jeff Laytonca40b712011-01-07 11:30:29 -0500124 seq_printf(m, " dfs");
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530125#endif
126#ifdef CONFIG_CIFS_FSCACHE
Jeff Laytonca40b712011-01-07 11:30:29 -0500127 seq_printf(m, " fscache");
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530128#endif
129#ifdef CONFIG_CIFS_WEAK_PW_HASH
Jeff Laytonca40b712011-01-07 11:30:29 -0500130 seq_printf(m, " lanman");
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530131#endif
132#ifdef CONFIG_CIFS_POSIX
Jeff Laytonca40b712011-01-07 11:30:29 -0500133 seq_printf(m, " posix");
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530134#endif
135#ifdef CONFIG_CIFS_UPCALL
Jeff Laytonca40b712011-01-07 11:30:29 -0500136 seq_printf(m, " spnego");
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530137#endif
138#ifdef CONFIG_CIFS_XATTR
Jeff Laytonca40b712011-01-07 11:30:29 -0500139 seq_printf(m, " xattr");
140#endif
141#ifdef CONFIG_CIFS_ACL
142 seq_printf(m, " acl");
Suresh Jayaramanf5799032010-07-30 18:25:56 +0530143#endif
144 seq_putc(m, '\n');
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000145 seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
146 seq_printf(m, "Servers:");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147
148 i = 0;
Suresh Jayaraman3f9bcca2010-10-18 23:29:37 +0530149 spin_lock(&cifs_tcp_ses_lock);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500150 list_for_each(tmp1, &cifs_tcp_ses_list) {
151 server = list_entry(tmp1, struct TCP_Server_Info,
Jeff Layton14fbf502008-11-14 13:53:46 -0500152 tcp_ses_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 i++;
Jeff Layton14fbf502008-11-14 13:53:46 -0500154 list_for_each(tmp2, &server->smb_ses_list) {
Steve French96daf2b2011-05-27 04:34:02 +0000155 ses = list_entry(tmp2, struct cifs_ses,
Jeff Layton14fbf502008-11-14 13:53:46 -0500156 smb_ses_list);
157 if ((ses->serverDomain == NULL) ||
158 (ses->serverOS == NULL) ||
159 (ses->serverNOS == NULL)) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500160 seq_printf(m, "\n%d) entry for %s not fully "
161 "displayed\n\t", i, ses->serverName);
Jeff Layton14fbf502008-11-14 13:53:46 -0500162 } else {
163 seq_printf(m,
Jeff Laytonf1987b42008-11-15 11:12:47 -0500164 "\n%d) Name: %s Domain: %s Uses: %d OS:"
165 " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
Steve French221601c2007-06-05 20:35:06 +0000166 " session status: %d\t",
Steve Frenchb8643e12005-04-28 22:41:07 -0700167 i, ses->serverName, ses->serverDomain,
Jeff Layton14fbf502008-11-14 13:53:46 -0500168 ses->ses_count, ses->serverOS, ses->serverNOS,
Steve French221601c2007-06-05 20:35:06 +0000169 ses->capabilities, ses->status);
Jeff Layton14fbf502008-11-14 13:53:46 -0500170 }
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000171 seq_printf(m, "TCP status: %d\n\tLocal Users To "
Jeff Layton14fbf502008-11-14 13:53:46 -0500172 "Server: %d SecMode: 0x%x Req On Wire: %d",
173 server->tcpStatus, server->srv_count,
Steve French96daf2b2011-05-27 04:34:02 +0000174 server->sec_mode,
Jeff Layton14fbf502008-11-14 13:53:46 -0500175 atomic_read(&server->inFlight));
Steve French131afd0b2005-10-07 09:51:05 -0700176
177#ifdef CONFIG_CIFS_STATS2
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000178 seq_printf(m, " In Send: %d In MaxReq Wait: %d",
Steve French789e6662011-08-09 18:44:44 +0000179 atomic_read(&server->in_send),
Jeff Layton14fbf502008-11-14 13:53:46 -0500180 atomic_read(&server->num_waiters));
Steve French131afd0b2005-10-07 09:51:05 -0700181#endif
182
Jeff Laytonf1987b42008-11-15 11:12:47 -0500183 seq_puts(m, "\n\tShares:");
184 j = 0;
185 list_for_each(tmp3, &ses->tcon_list) {
Steve French96daf2b2011-05-27 04:34:02 +0000186 tcon = list_entry(tmp3, struct cifs_tcon,
Jeff Laytonf1987b42008-11-15 11:12:47 -0500187 tcon_list);
188 ++j;
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);
195 }
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),
201 tcon->tidStatus);
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 ");
206 else
207 seq_printf(m, " type: %d ", dev_type);
208
209 if (tcon->need_reconnect)
210 seq_puts(m, "\tDISCONNECTED ");
211 seq_putc(m, '\n');
212 }
213
214 seq_puts(m, "\n\tMIDs:\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215
216 spin_lock(&GlobalMid_Lock);
Jeff Layton14fbf502008-11-14 13:53:46 -0500217 list_for_each(tmp3, &server->pending_mid_q) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500218 mid_entry = list_entry(tmp3, struct mid_q_entry,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 qhead);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500220 seq_printf(m, "\tState: %d com: %d pid:"
Jeff Layton2b84a36c2011-01-11 07:24:21 -0500221 " %d cbdata: %p mid %d\n",
Steve Frenchad8b15f2008-08-08 21:10:16 +0000222 mid_entry->midState,
223 (int)mid_entry->command,
224 mid_entry->pid,
Jeff Layton2b84a36c2011-01-11 07:24:21 -0500225 mid_entry->callback_data,
Steve Frenchad8b15f2008-08-08 21:10:16 +0000226 mid_entry->mid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 }
Steve French221601c2007-06-05 20:35:06 +0000228 spin_unlock(&GlobalMid_Lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 }
Suresh Jayaraman3f9bcca2010-10-18 23:29:37 +0530231 spin_unlock(&cifs_tcp_ses_lock);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000232 seq_putc(m, '\n');
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 /* BB add code to dump additional info such as TCP session info now */
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000235 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236}
237
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000238static int cifs_debug_data_proc_open(struct inode *inode, struct file *file)
239{
240 return single_open(file, cifs_debug_data_proc_show, NULL);
241}
Steve French1047abc2005-10-11 19:58:06 -0700242
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000243static const struct file_operations cifs_debug_data_proc_fops = {
244 .owner = THIS_MODULE,
245 .open = cifs_debug_data_proc_open,
246 .read = seq_read,
247 .llseek = seq_lseek,
248 .release = single_release,
249};
250
251#ifdef CONFIG_CIFS_STATS
252static ssize_t cifs_stats_proc_write(struct file *file,
253 const char __user *buffer, size_t count, loff_t *ppos)
Steve French1047abc2005-10-11 19:58:06 -0700254{
Steve French221601c2007-06-05 20:35:06 +0000255 char c;
256 int rc;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500257 struct list_head *tmp1, *tmp2, *tmp3;
258 struct TCP_Server_Info *server;
Steve French96daf2b2011-05-27 04:34:02 +0000259 struct cifs_ses *ses;
260 struct cifs_tcon *tcon;
Steve French1047abc2005-10-11 19:58:06 -0700261
Steve French221601c2007-06-05 20:35:06 +0000262 rc = get_user(c, buffer);
263 if (rc)
264 return rc;
Steve French1047abc2005-10-11 19:58:06 -0700265
Steve French221601c2007-06-05 20:35:06 +0000266 if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
Steve French4498eed52005-12-03 13:58:57 -0800267#ifdef CONFIG_CIFS_STATS2
268 atomic_set(&totBufAllocCount, 0);
269 atomic_set(&totSmBufAllocCount, 0);
270#endif /* CONFIG_CIFS_STATS2 */
Suresh Jayaraman3f9bcca2010-10-18 23:29:37 +0530271 spin_lock(&cifs_tcp_ses_lock);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500272 list_for_each(tmp1, &cifs_tcp_ses_list) {
273 server = list_entry(tmp1, struct TCP_Server_Info,
274 tcp_ses_list);
Steve Frenchc2b33822008-11-17 03:57:13 +0000275 list_for_each(tmp2, &server->smb_ses_list) {
Steve French96daf2b2011-05-27 04:34:02 +0000276 ses = list_entry(tmp2, struct cifs_ses,
Steve Frenchc2b33822008-11-17 03:57:13 +0000277 smb_ses_list);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500278 list_for_each(tmp3, &ses->tcon_list) {
279 tcon = list_entry(tmp3,
Steve French96daf2b2011-05-27 04:34:02 +0000280 struct cifs_tcon,
Jeff Laytonf1987b42008-11-15 11:12:47 -0500281 tcon_list);
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);
Steve French65bc98b2009-07-10 15:27:25 +0000287 atomic_set(&tcon->num_posixopens, 0);
288 atomic_set(&tcon->num_posixmkdirs, 0);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500289 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);
301 }
302 }
Steve French1047abc2005-10-11 19:58:06 -0700303 }
Suresh Jayaraman3f9bcca2010-10-18 23:29:37 +0530304 spin_unlock(&cifs_tcp_ses_lock);
Steve French1047abc2005-10-11 19:58:06 -0700305 }
306
Steve French221601c2007-06-05 20:35:06 +0000307 return count;
Steve French1047abc2005-10-11 19:58:06 -0700308}
309
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000310static int cifs_stats_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000312 int i;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500313 struct list_head *tmp1, *tmp2, *tmp3;
314 struct TCP_Server_Info *server;
Steve French96daf2b2011-05-27 04:34:02 +0000315 struct cifs_ses *ses;
316 struct cifs_tcon *tcon;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000318 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 "Resources in use\nCIFS Session: %d\n",
320 sesInfoAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000321 seq_printf(m, "Share (unique mount targets): %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 tconInfoAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000323 seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n",
Steve Frenchb8643e12005-04-28 22:41:07 -0700324 bufAllocCount.counter,
325 cifs_min_rcv + tcpSesAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000326 seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
Steve French221601c2007-06-05 20:35:06 +0000327 smBufAllocCount.counter, cifs_min_small);
Steve French07475ff2005-12-03 14:11:37 -0800328#ifdef CONFIG_CIFS_STATS2
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000329 seq_printf(m, "Total Large %d Small %d Allocations\n",
Steve French07475ff2005-12-03 14:11:37 -0800330 atomic_read(&totBufAllocCount),
Steve French221601c2007-06-05 20:35:06 +0000331 atomic_read(&totSmBufAllocCount));
Steve French07475ff2005-12-03 14:11:37 -0800332#endif /* CONFIG_CIFS_STATS2 */
333
Jeff Layton80975312011-01-11 07:24:02 -0500334 seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount));
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000335 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 "\n%d session %d share reconnects\n",
Steve French221601c2007-06-05 20:35:06 +0000337 tcpSesReconnectCount.counter, tconInfoReconnectCount.counter);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000339 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 "Total vfs operations: %d maximum at one time: %d\n",
Steve French221601c2007-06-05 20:35:06 +0000341 GlobalCurrentXid, GlobalMaxActiveXid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
343 i = 0;
Suresh Jayaraman3f9bcca2010-10-18 23:29:37 +0530344 spin_lock(&cifs_tcp_ses_lock);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500345 list_for_each(tmp1, &cifs_tcp_ses_list) {
346 server = list_entry(tmp1, struct TCP_Server_Info,
347 tcp_ses_list);
348 list_for_each(tmp2, &server->smb_ses_list) {
Steve French96daf2b2011-05-27 04:34:02 +0000349 ses = list_entry(tmp2, struct cifs_ses,
Jeff Laytonf1987b42008-11-15 11:12:47 -0500350 smb_ses_list);
351 list_for_each(tmp3, &ses->tcon_list) {
352 tcon = list_entry(tmp3,
Steve French96daf2b2011-05-27 04:34:02 +0000353 struct cifs_tcon,
Jeff Laytonf1987b42008-11-15 11:12:47 -0500354 tcon_list);
355 i++;
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));
Steve Frenchb298f222009-02-21 21:17:43 +0000368 seq_printf(m, "\nFlushes: %d",
369 atomic_read(&tcon->num_flushes));
Jeff Laytonf1987b42008-11-15 11:12:47 -0500370 seq_printf(m, "\nLocks: %d HardLinks: %d "
371 "Symlinks: %d",
372 atomic_read(&tcon->num_locks),
373 atomic_read(&tcon->num_hardlinks),
374 atomic_read(&tcon->num_symlinks));
Steve French65bc98b2009-07-10 15:27:25 +0000375 seq_printf(m, "\nOpens: %d Closes: %d "
Jeff Laytonf1987b42008-11-15 11:12:47 -0500376 "Deletes: %d",
377 atomic_read(&tcon->num_opens),
378 atomic_read(&tcon->num_closes),
379 atomic_read(&tcon->num_deletes));
Steve French65bc98b2009-07-10 15:27:25 +0000380 seq_printf(m, "\nPosix Opens: %d "
381 "Posix Mkdirs: %d",
382 atomic_read(&tcon->num_posixopens),
383 atomic_read(&tcon->num_posixmkdirs));
Jeff Laytonf1987b42008-11-15 11:12:47 -0500384 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 "
391 "FClose %d",
392 atomic_read(&tcon->num_ffirst),
393 atomic_read(&tcon->num_fnext),
394 atomic_read(&tcon->num_fclose));
395 }
396 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 }
Suresh Jayaraman3f9bcca2010-10-18 23:29:37 +0530398 spin_unlock(&cifs_tcp_ses_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000400 seq_putc(m, '\n');
401 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000403
404static int cifs_stats_proc_open(struct inode *inode, struct file *file)
405{
406 return single_open(file, cifs_stats_proc_show, NULL);
407}
408
409static const struct file_operations cifs_stats_proc_fops = {
410 .owner = THIS_MODULE,
411 .open = cifs_stats_proc_open,
412 .read = seq_read,
413 .llseek = seq_lseek,
414 .release = single_release,
415 .write = cifs_stats_proc_write,
416};
Steve French90c81e02008-02-12 20:32:36 +0000417#endif /* STATS */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418
419static struct proc_dir_entry *proc_fs_cifs;
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000420static const struct file_operations cifsFYI_proc_fops;
421static const struct file_operations cifs_oplock_proc_fops;
422static const struct file_operations cifs_lookup_cache_proc_fops;
423static const struct file_operations traceSMB_proc_fops;
424static const struct file_operations cifs_multiuser_mount_proc_fops;
425static const struct file_operations cifs_security_flags_proc_fops;
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000426static const struct file_operations cifs_linux_ext_proc_fops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
428void
429cifs_proc_init(void)
430{
Alexey Dobriyan36a5aeb2008-04-29 01:01:42 -0700431 proc_fs_cifs = proc_mkdir("fs/cifs", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 if (proc_fs_cifs == NULL)
433 return;
434
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000435 proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
437#ifdef CONFIG_CIFS_STATS
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000438 proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops);
Steve French90c81e02008-02-12 20:32:36 +0000439#endif /* STATS */
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000440 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);
Steve French99b1f5b2008-07-24 02:37:45 +0000443 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451}
452
453void
454cifs_proc_clean(void)
455{
456 if (proc_fs_cifs == NULL)
457 return;
458
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);
464#endif
465 remove_proc_entry("MultiuserMount", proc_fs_cifs);
466 remove_proc_entry("OplockEnabled", proc_fs_cifs);
Steve French221601c2007-06-05 20:35:06 +0000467 remove_proc_entry("SecurityFlags", proc_fs_cifs);
Steve French221601c2007-06-05 20:35:06 +0000468 remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
Steve French221601c2007-06-05 20:35:06 +0000469 remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
Alexey Dobriyan36a5aeb2008-04-29 01:01:42 -0700470 remove_proc_entry("fs/cifs", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471}
472
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000473static int cifsFYI_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000475 seq_printf(m, "%d\n", cifsFYI);
476 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000478
479static int cifsFYI_proc_open(struct inode *inode, struct file *file)
480{
481 return single_open(file, cifsFYI_proc_show, NULL);
482}
483
484static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
485 size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486{
487 char c;
488 int rc;
489
490 rc = get_user(c, buffer);
491 if (rc)
492 return rc;
493 if (c == '0' || c == 'n' || c == 'N')
494 cifsFYI = 0;
495 else if (c == '1' || c == 'y' || c == 'Y')
496 cifsFYI = 1;
Steve French221601c2007-06-05 20:35:06 +0000497 else if ((c > '1') && (c <= '9'))
Steve French1047abc2005-10-11 19:58:06 -0700498 cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499
500 return count;
501}
502
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000503static const struct file_operations cifsFYI_proc_fops = {
504 .owner = THIS_MODULE,
505 .open = cifsFYI_proc_open,
506 .read = seq_read,
507 .llseek = seq_lseek,
508 .release = single_release,
509 .write = cifsFYI_proc_write,
510};
511
512static int cifs_oplock_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513{
Steve Frenche7504732011-10-12 17:47:03 -0500514 seq_printf(m, "%d\n", enable_oplocks);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000515 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000517
518static int cifs_oplock_proc_open(struct inode *inode, struct file *file)
519{
520 return single_open(file, cifs_oplock_proc_show, NULL);
521}
522
523static ssize_t cifs_oplock_proc_write(struct file *file,
524 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525{
526 char c;
527 int rc;
528
Suresh Jayaraman8bc43922011-10-12 11:51:53 +0530529 printk(KERN_WARNING "CIFS: The /proc/fs/cifs/OplockEnabled interface "
530 "will be removed in kernel version 3.4. Please migrate to "
531 "using the 'enable_oplocks' module parameter in cifs.ko.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532 rc = get_user(c, buffer);
533 if (rc)
534 return rc;
535 if (c == '0' || c == 'n' || c == 'N')
Steve Frenche7504732011-10-12 17:47:03 -0500536 enable_oplocks = false;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537 else if (c == '1' || c == 'y' || c == 'Y')
Steve Frenche7504732011-10-12 17:47:03 -0500538 enable_oplocks = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539
540 return count;
541}
542
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000543static const struct file_operations cifs_oplock_proc_fops = {
544 .owner = THIS_MODULE,
545 .open = cifs_oplock_proc_open,
546 .read = seq_read,
547 .llseek = seq_lseek,
548 .release = single_release,
549 .write = cifs_oplock_proc_write,
550};
551
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000552static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000554 seq_printf(m, "%d\n", linuxExtEnabled);
555 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000557
558static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file)
559{
560 return single_open(file, cifs_linux_ext_proc_show, NULL);
561}
562
563static ssize_t cifs_linux_ext_proc_write(struct file *file,
564 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565{
Steve French221601c2007-06-05 20:35:06 +0000566 char c;
567 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568
Steve French221601c2007-06-05 20:35:06 +0000569 rc = get_user(c, buffer);
570 if (rc)
571 return rc;
572 if (c == '0' || c == 'n' || c == 'N')
573 linuxExtEnabled = 0;
574 else if (c == '1' || c == 'y' || c == 'Y')
575 linuxExtEnabled = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576
Steve French221601c2007-06-05 20:35:06 +0000577 return count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578}
579
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000580static const struct file_operations cifs_linux_ext_proc_fops = {
581 .owner = THIS_MODULE,
582 .open = cifs_linux_ext_proc_open,
583 .read = seq_read,
584 .llseek = seq_lseek,
585 .release = single_release,
586 .write = cifs_linux_ext_proc_write,
587};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000589static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000591 seq_printf(m, "%d\n", lookupCacheEnabled);
592 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000594
595static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file)
596{
597 return single_open(file, cifs_lookup_cache_proc_show, NULL);
598}
599
600static ssize_t cifs_lookup_cache_proc_write(struct file *file,
601 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602{
603 char c;
604 int rc;
605
606 rc = get_user(c, buffer);
607 if (rc)
608 return rc;
609 if (c == '0' || c == 'n' || c == 'N')
610 lookupCacheEnabled = 0;
611 else if (c == '1' || c == 'y' || c == 'Y')
612 lookupCacheEnabled = 1;
613
614 return count;
615}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000616
617static const struct file_operations cifs_lookup_cache_proc_fops = {
618 .owner = THIS_MODULE,
619 .open = cifs_lookup_cache_proc_open,
620 .read = seq_read,
621 .llseek = seq_lseek,
622 .release = single_release,
623 .write = cifs_lookup_cache_proc_write,
624};
625
626static int traceSMB_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000628 seq_printf(m, "%d\n", traceSMB);
629 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000631
632static int traceSMB_proc_open(struct inode *inode, struct file *file)
633{
634 return single_open(file, traceSMB_proc_show, NULL);
635}
636
637static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
638 size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639{
640 char c;
641 int rc;
642
643 rc = get_user(c, buffer);
644 if (rc)
645 return rc;
646 if (c == '0' || c == 'n' || c == 'N')
647 traceSMB = 0;
648 else if (c == '1' || c == 'y' || c == 'Y')
649 traceSMB = 1;
650
651 return count;
652}
653
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000654static const struct file_operations traceSMB_proc_fops = {
655 .owner = THIS_MODULE,
656 .open = traceSMB_proc_open,
657 .read = seq_read,
658 .llseek = seq_lseek,
659 .release = single_release,
660 .write = traceSMB_proc_write,
661};
662
663static int cifs_multiuser_mount_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000665 seq_printf(m, "%d\n", multiuser_mount);
666 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000668
Steve French99b1f5b2008-07-24 02:37:45 +0000669static int cifs_multiuser_mount_proc_open(struct inode *inode, struct file *fh)
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000670{
Steve French99b1f5b2008-07-24 02:37:45 +0000671 return single_open(fh, cifs_multiuser_mount_proc_show, NULL);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000672}
673
674static ssize_t cifs_multiuser_mount_proc_write(struct file *file,
675 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676{
677 char c;
678 int rc;
Jeff Layton789b45882012-01-17 16:09:15 -0500679 static bool warned;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680
681 rc = get_user(c, buffer);
682 if (rc)
683 return rc;
684 if (c == '0' || c == 'n' || c == 'N')
685 multiuser_mount = 0;
Jeff Layton789b45882012-01-17 16:09:15 -0500686 else if (c == '1' || c == 'y' || c == 'Y') {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687 multiuser_mount = 1;
Jeff Layton789b45882012-01-17 16:09:15 -0500688 if (!warned) {
689 warned = true;
690 printk(KERN_WARNING "CIFS VFS: The legacy multiuser "
691 "mount code is scheduled to be deprecated in "
692 "3.5. Please switch to using the multiuser "
693 "mount option.");
694 }
695 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700696
697 return count;
698}
699
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000700static const struct file_operations cifs_multiuser_mount_proc_fops = {
701 .owner = THIS_MODULE,
702 .open = cifs_multiuser_mount_proc_open,
703 .read = seq_read,
704 .llseek = seq_lseek,
705 .release = single_release,
706 .write = cifs_multiuser_mount_proc_write,
707};
708
709static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710{
Jeff Layton04912d62010-04-24 07:57:45 -0400711 seq_printf(m, "0x%x\n", global_secflags);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000712 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000714
715static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
716{
717 return single_open(file, cifs_security_flags_proc_show, NULL);
718}
719
720static ssize_t cifs_security_flags_proc_write(struct file *file,
721 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722{
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000723 unsigned int flags;
724 char flags_string[12];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 char c;
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000726
Steve French221601c2007-06-05 20:35:06 +0000727 if ((count < 1) || (count > 11))
Steve French39798772006-05-31 22:40:51 +0000728 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700729
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000730 memset(flags_string, 0, 12);
Steve French39798772006-05-31 22:40:51 +0000731
Steve French221601c2007-06-05 20:35:06 +0000732 if (copy_from_user(flags_string, buffer, count))
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000733 return -EFAULT;
Steve French39798772006-05-31 22:40:51 +0000734
Steve French221601c2007-06-05 20:35:06 +0000735 if (count < 3) {
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000736 /* single char or single char followed by null */
737 c = flags_string[0];
Steve Frencha0136892007-10-04 20:05:09 +0000738 if (c == '0' || c == 'n' || c == 'N') {
Jeff Layton04912d62010-04-24 07:57:45 -0400739 global_secflags = CIFSSEC_DEF; /* default */
Steve Frencha0136892007-10-04 20:05:09 +0000740 return count;
741 } else if (c == '1' || c == 'y' || c == 'Y') {
Jeff Layton04912d62010-04-24 07:57:45 -0400742 global_secflags = CIFSSEC_MAX;
Steve Frencha0136892007-10-04 20:05:09 +0000743 return count;
744 } else if (!isdigit(c)) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000745 cERROR(1, "invalid flag %c", c);
Steve Frencha0136892007-10-04 20:05:09 +0000746 return -EINVAL;
747 }
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000748 }
749 /* else we have a number */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000751 flags = simple_strtoul(flags_string, NULL, 0);
752
Joe Perchesb6b38f72010-04-21 03:50:45 +0000753 cFYI(1, "sec flags 0x%x", flags);
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000754
Steve French221601c2007-06-05 20:35:06 +0000755 if (flags <= 0) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000756 cERROR(1, "invalid security flags %s", flags_string);
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000757 return -EINVAL;
758 }
759
Steve French221601c2007-06-05 20:35:06 +0000760 if (flags & ~CIFSSEC_MASK) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000761 cERROR(1, "attempt to set unsupported security flags 0x%x",
762 flags & ~CIFSSEC_MASK);
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000763 return -EINVAL;
764 }
765 /* flags look ok - update the global security flags for cifs module */
Jeff Layton04912d62010-04-24 07:57:45 -0400766 global_secflags = flags;
767 if (global_secflags & CIFSSEC_MUST_SIGN) {
Steve French762e5ab2007-06-28 18:41:42 +0000768 /* requiring signing implies signing is allowed */
Jeff Layton04912d62010-04-24 07:57:45 -0400769 global_secflags |= CIFSSEC_MAY_SIGN;
Joe Perchesb6b38f72010-04-21 03:50:45 +0000770 cFYI(1, "packet signing now required");
Jeff Layton04912d62010-04-24 07:57:45 -0400771 } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) {
Joe Perchesb6b38f72010-04-21 03:50:45 +0000772 cFYI(1, "packet signing disabled");
Steve French762e5ab2007-06-28 18:41:42 +0000773 }
774 /* BB should we turn on MAY flags for other MUST options? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775 return count;
776}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000777
778static const struct file_operations cifs_security_flags_proc_fops = {
779 .owner = THIS_MODULE,
780 .open = cifs_security_flags_proc_open,
781 .read = seq_read,
782 .llseek = seq_lseek,
783 .release = single_release,
784 .write = cifs_security_flags_proc_write,
785};
Steve French90c81e02008-02-12 20:32:36 +0000786#else
Steve Frenche086fce2008-02-18 04:03:58 +0000787inline void cifs_proc_init(void)
Steve French90c81e02008-02-12 20:32:36 +0000788{
789}
790
Steve Frenche086fce2008-02-18 04:03:58 +0000791inline void cifs_proc_clean(void)
Steve French90c81e02008-02-12 20:32:36 +0000792{
793}
794#endif /* PROC_FS */