blob: 490e34bbf27a66641c0bad3327e5bb22156a88af [file] [log] [blame]
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{
Steve French221601c2007-06-05 20:35:06 +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,
65 smb->Flags, smb->Flags2, smb->Mid, smb->Pid));
Steve French221601c2007-06-05 20:35:06 +000066 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
Steve French221601c2007-06-05 20:35:06 +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);
Steve Frenchad8b15f2008-08-08 21:10:16 +000082 cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
83 mid_entry->midState,
84 (int)mid_entry->command,
85 mid_entry->pid,
86 mid_entry->tsk,
87 mid_entry->mid));
Steve French39798772006-05-31 22:40:51 +000088#ifdef CONFIG_CIFS_STATS2
Steve Frenchad8b15f2008-08-08 21:10:16 +000089 cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
90 mid_entry->largeBuf,
91 mid_entry->resp_buf,
92 mid_entry->when_received,
93 jiffies));
Steve French39798772006-05-31 22:40:51 +000094#endif /* STATS2 */
Steve Frenchad8b15f2008-08-08 21:10:16 +000095 cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
96 mid_entry->multiEnd));
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);
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);
122 seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid);
123 seq_printf(m, "Servers:");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124
125 i = 0;
Jeff Layton14fbf502008-11-14 13:53:46 -0500126 read_lock(&cifs_tcp_ses_lock);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500127 list_for_each(tmp1, &cifs_tcp_ses_list) {
128 server = list_entry(tmp1, struct TCP_Server_Info,
Jeff Layton14fbf502008-11-14 13:53:46 -0500129 tcp_ses_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 i++;
Jeff Layton14fbf502008-11-14 13:53:46 -0500131 list_for_each(tmp2, &server->smb_ses_list) {
132 ses = list_entry(tmp2, struct cifsSesInfo,
133 smb_ses_list);
134 if ((ses->serverDomain == NULL) ||
135 (ses->serverOS == NULL) ||
136 (ses->serverNOS == NULL)) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500137 seq_printf(m, "\n%d) entry for %s not fully "
138 "displayed\n\t", i, ses->serverName);
Jeff Layton14fbf502008-11-14 13:53:46 -0500139 } else {
140 seq_printf(m,
Jeff Laytonf1987b42008-11-15 11:12:47 -0500141 "\n%d) Name: %s Domain: %s Uses: %d OS:"
142 " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB"
Steve French221601c2007-06-05 20:35:06 +0000143 " session status: %d\t",
Steve Frenchb8643e12005-04-28 22:41:07 -0700144 i, ses->serverName, ses->serverDomain,
Jeff Layton14fbf502008-11-14 13:53:46 -0500145 ses->ses_count, ses->serverOS, ses->serverNOS,
Steve French221601c2007-06-05 20:35:06 +0000146 ses->capabilities, ses->status);
Jeff Layton14fbf502008-11-14 13:53:46 -0500147 }
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000148 seq_printf(m, "TCP status: %d\n\tLocal Users To "
Jeff Layton14fbf502008-11-14 13:53:46 -0500149 "Server: %d SecMode: 0x%x Req On Wire: %d",
150 server->tcpStatus, server->srv_count,
151 server->secMode,
152 atomic_read(&server->inFlight));
Steve French131afd0b2005-10-07 09:51:05 -0700153
154#ifdef CONFIG_CIFS_STATS2
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000155 seq_printf(m, " In Send: %d In MaxReq Wait: %d",
Jeff Layton14fbf502008-11-14 13:53:46 -0500156 atomic_read(&server->inSend),
157 atomic_read(&server->num_waiters));
Steve French131afd0b2005-10-07 09:51:05 -0700158#endif
159
Jeff Laytonf1987b42008-11-15 11:12:47 -0500160 seq_puts(m, "\n\tShares:");
161 j = 0;
162 list_for_each(tmp3, &ses->tcon_list) {
163 tcon = list_entry(tmp3, struct cifsTconInfo,
164 tcon_list);
165 ++j;
166 dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType);
167 seq_printf(m, "\n\t%d) %s Mounts: %d ", j,
168 tcon->treeName, tcon->tc_count);
169 if (tcon->nativeFileSystem) {
170 seq_printf(m, "Type: %s ",
171 tcon->nativeFileSystem);
172 }
173 seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x"
174 "\nPathComponentMax: %d Status: 0x%d",
175 le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics),
176 le32_to_cpu(tcon->fsAttrInfo.Attributes),
177 le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength),
178 tcon->tidStatus);
179 if (dev_type == FILE_DEVICE_DISK)
180 seq_puts(m, " type: DISK ");
181 else if (dev_type == FILE_DEVICE_CD_ROM)
182 seq_puts(m, " type: CDROM ");
183 else
184 seq_printf(m, " type: %d ", dev_type);
185
186 if (tcon->need_reconnect)
187 seq_puts(m, "\tDISCONNECTED ");
188 seq_putc(m, '\n');
189 }
190
191 seq_puts(m, "\n\tMIDs:\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192
193 spin_lock(&GlobalMid_Lock);
Jeff Layton14fbf502008-11-14 13:53:46 -0500194 list_for_each(tmp3, &server->pending_mid_q) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500195 mid_entry = list_entry(tmp3, struct mid_q_entry,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 qhead);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500197 seq_printf(m, "\tState: %d com: %d pid:"
Steve Frenchad8b15f2008-08-08 21:10:16 +0000198 " %d tsk: %p mid %d\n",
199 mid_entry->midState,
200 (int)mid_entry->command,
201 mid_entry->pid,
202 mid_entry->tsk,
203 mid_entry->mid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 }
Steve French221601c2007-06-05 20:35:06 +0000205 spin_unlock(&GlobalMid_Lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 }
Jeff Layton14fbf502008-11-14 13:53:46 -0500208 read_unlock(&cifs_tcp_ses_lock);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000209 seq_putc(m, '\n');
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 /* BB add code to dump additional info such as TCP session info now */
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000212 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213}
214
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000215static int cifs_debug_data_proc_open(struct inode *inode, struct file *file)
216{
217 return single_open(file, cifs_debug_data_proc_show, NULL);
218}
Steve French1047abc2005-10-11 19:58:06 -0700219
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000220static const struct file_operations cifs_debug_data_proc_fops = {
221 .owner = THIS_MODULE,
222 .open = cifs_debug_data_proc_open,
223 .read = seq_read,
224 .llseek = seq_lseek,
225 .release = single_release,
226};
227
228#ifdef CONFIG_CIFS_STATS
229static ssize_t cifs_stats_proc_write(struct file *file,
230 const char __user *buffer, size_t count, loff_t *ppos)
Steve French1047abc2005-10-11 19:58:06 -0700231{
Steve French221601c2007-06-05 20:35:06 +0000232 char c;
233 int rc;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500234 struct list_head *tmp1, *tmp2, *tmp3;
235 struct TCP_Server_Info *server;
236 struct cifsSesInfo *ses;
Steve French1047abc2005-10-11 19:58:06 -0700237 struct cifsTconInfo *tcon;
238
Steve French221601c2007-06-05 20:35:06 +0000239 rc = get_user(c, buffer);
240 if (rc)
241 return rc;
Steve French1047abc2005-10-11 19:58:06 -0700242
Steve French221601c2007-06-05 20:35:06 +0000243 if (c == '1' || c == 'y' || c == 'Y' || c == '0') {
Steve French4498eed52005-12-03 13:58:57 -0800244#ifdef CONFIG_CIFS_STATS2
245 atomic_set(&totBufAllocCount, 0);
246 atomic_set(&totSmBufAllocCount, 0);
247#endif /* CONFIG_CIFS_STATS2 */
Jeff Laytonf1987b42008-11-15 11:12:47 -0500248 read_lock(&cifs_tcp_ses_lock);
249 list_for_each(tmp1, &cifs_tcp_ses_list) {
250 server = list_entry(tmp1, struct TCP_Server_Info,
251 tcp_ses_list);
Steve Frenchc2b33822008-11-17 03:57:13 +0000252 list_for_each(tmp2, &server->smb_ses_list) {
Jeff Laytonf1987b42008-11-15 11:12:47 -0500253 ses = list_entry(tmp2, struct cifsSesInfo,
Steve Frenchc2b33822008-11-17 03:57:13 +0000254 smb_ses_list);
Jeff Laytonf1987b42008-11-15 11:12:47 -0500255 list_for_each(tmp3, &ses->tcon_list) {
256 tcon = list_entry(tmp3,
257 struct cifsTconInfo,
258 tcon_list);
259 atomic_set(&tcon->num_smbs_sent, 0);
260 atomic_set(&tcon->num_writes, 0);
261 atomic_set(&tcon->num_reads, 0);
262 atomic_set(&tcon->num_oplock_brks, 0);
263 atomic_set(&tcon->num_opens, 0);
264 atomic_set(&tcon->num_closes, 0);
265 atomic_set(&tcon->num_deletes, 0);
266 atomic_set(&tcon->num_mkdirs, 0);
267 atomic_set(&tcon->num_rmdirs, 0);
268 atomic_set(&tcon->num_renames, 0);
269 atomic_set(&tcon->num_t2renames, 0);
270 atomic_set(&tcon->num_ffirst, 0);
271 atomic_set(&tcon->num_fnext, 0);
272 atomic_set(&tcon->num_fclose, 0);
273 atomic_set(&tcon->num_hardlinks, 0);
274 atomic_set(&tcon->num_symlinks, 0);
275 atomic_set(&tcon->num_locks, 0);
276 }
277 }
Steve French1047abc2005-10-11 19:58:06 -0700278 }
Jeff Laytonf1987b42008-11-15 11:12:47 -0500279 read_unlock(&cifs_tcp_ses_lock);
Steve French1047abc2005-10-11 19:58:06 -0700280 }
281
Steve French221601c2007-06-05 20:35:06 +0000282 return count;
Steve French1047abc2005-10-11 19:58:06 -0700283}
284
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000285static int cifs_stats_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000287 int i;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500288 struct list_head *tmp1, *tmp2, *tmp3;
289 struct TCP_Server_Info *server;
290 struct cifsSesInfo *ses;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 struct cifsTconInfo *tcon;
292
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000293 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 "Resources in use\nCIFS Session: %d\n",
295 sesInfoAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000296 seq_printf(m, "Share (unique mount targets): %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 tconInfoAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000298 seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n",
Steve Frenchb8643e12005-04-28 22:41:07 -0700299 bufAllocCount.counter,
300 cifs_min_rcv + tcpSesAllocCount.counter);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000301 seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n",
Steve French221601c2007-06-05 20:35:06 +0000302 smBufAllocCount.counter, cifs_min_small);
Steve French07475ff2005-12-03 14:11:37 -0800303#ifdef CONFIG_CIFS_STATS2
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000304 seq_printf(m, "Total Large %d Small %d Allocations\n",
Steve French07475ff2005-12-03 14:11:37 -0800305 atomic_read(&totBufAllocCount),
Steve French221601c2007-06-05 20:35:06 +0000306 atomic_read(&totSmBufAllocCount));
Steve French07475ff2005-12-03 14:11:37 -0800307#endif /* CONFIG_CIFS_STATS2 */
308
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000309 seq_printf(m, "Operations (MIDs): %d\n", midCount.counter);
310 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 "\n%d session %d share reconnects\n",
Steve French221601c2007-06-05 20:35:06 +0000312 tcpSesReconnectCount.counter, tconInfoReconnectCount.counter);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000314 seq_printf(m,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 "Total vfs operations: %d maximum at one time: %d\n",
Steve French221601c2007-06-05 20:35:06 +0000316 GlobalCurrentXid, GlobalMaxActiveXid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317
318 i = 0;
Jeff Laytonf1987b42008-11-15 11:12:47 -0500319 read_lock(&cifs_tcp_ses_lock);
320 list_for_each(tmp1, &cifs_tcp_ses_list) {
321 server = list_entry(tmp1, struct TCP_Server_Info,
322 tcp_ses_list);
323 list_for_each(tmp2, &server->smb_ses_list) {
324 ses = list_entry(tmp2, struct cifsSesInfo,
325 smb_ses_list);
326 list_for_each(tmp3, &ses->tcon_list) {
327 tcon = list_entry(tmp3,
328 struct cifsTconInfo,
329 tcon_list);
330 i++;
331 seq_printf(m, "\n%d) %s", i, tcon->treeName);
332 if (tcon->need_reconnect)
333 seq_puts(m, "\tDISCONNECTED ");
334 seq_printf(m, "\nSMBs: %d Oplock Breaks: %d",
335 atomic_read(&tcon->num_smbs_sent),
336 atomic_read(&tcon->num_oplock_brks));
337 seq_printf(m, "\nReads: %d Bytes: %lld",
338 atomic_read(&tcon->num_reads),
339 (long long)(tcon->bytes_read));
340 seq_printf(m, "\nWrites: %d Bytes: %lld",
341 atomic_read(&tcon->num_writes),
342 (long long)(tcon->bytes_written));
343 seq_printf(m, "\nLocks: %d HardLinks: %d "
344 "Symlinks: %d",
345 atomic_read(&tcon->num_locks),
346 atomic_read(&tcon->num_hardlinks),
347 atomic_read(&tcon->num_symlinks));
348 seq_printf(m, "\nOpens: %d Closes: %d"
349 "Deletes: %d",
350 atomic_read(&tcon->num_opens),
351 atomic_read(&tcon->num_closes),
352 atomic_read(&tcon->num_deletes));
353 seq_printf(m, "\nMkdirs: %d Rmdirs: %d",
354 atomic_read(&tcon->num_mkdirs),
355 atomic_read(&tcon->num_rmdirs));
356 seq_printf(m, "\nRenames: %d T2 Renames %d",
357 atomic_read(&tcon->num_renames),
358 atomic_read(&tcon->num_t2renames));
359 seq_printf(m, "\nFindFirst: %d FNext %d "
360 "FClose %d",
361 atomic_read(&tcon->num_ffirst),
362 atomic_read(&tcon->num_fnext),
363 atomic_read(&tcon->num_fclose));
364 }
365 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 }
Jeff Laytonf1987b42008-11-15 11:12:47 -0500367 read_unlock(&cifs_tcp_ses_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000369 seq_putc(m, '\n');
370 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000372
373static int cifs_stats_proc_open(struct inode *inode, struct file *file)
374{
375 return single_open(file, cifs_stats_proc_show, NULL);
376}
377
378static const struct file_operations cifs_stats_proc_fops = {
379 .owner = THIS_MODULE,
380 .open = cifs_stats_proc_open,
381 .read = seq_read,
382 .llseek = seq_lseek,
383 .release = single_release,
384 .write = cifs_stats_proc_write,
385};
Steve French90c81e02008-02-12 20:32:36 +0000386#endif /* STATS */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387
388static struct proc_dir_entry *proc_fs_cifs;
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000389static const struct file_operations cifsFYI_proc_fops;
390static const struct file_operations cifs_oplock_proc_fops;
391static const struct file_operations cifs_lookup_cache_proc_fops;
392static const struct file_operations traceSMB_proc_fops;
393static const struct file_operations cifs_multiuser_mount_proc_fops;
394static const struct file_operations cifs_security_flags_proc_fops;
395static const struct file_operations cifs_experimental_proc_fops;
396static const struct file_operations cifs_linux_ext_proc_fops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
398void
399cifs_proc_init(void)
400{
Alexey Dobriyan36a5aeb2008-04-29 01:01:42 -0700401 proc_fs_cifs = proc_mkdir("fs/cifs", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 if (proc_fs_cifs == NULL)
403 return;
404
405 proc_fs_cifs->owner = THIS_MODULE;
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000406 proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
408#ifdef CONFIG_CIFS_STATS
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000409 proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops);
Steve French90c81e02008-02-12 20:32:36 +0000410#endif /* STATS */
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000411 proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops);
412 proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops);
413 proc_create("OplockEnabled", 0, proc_fs_cifs, &cifs_oplock_proc_fops);
Steve French99b1f5b2008-07-24 02:37:45 +0000414 proc_create("Experimental", 0, proc_fs_cifs,
415 &cifs_experimental_proc_fops);
416 proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs,
417 &cifs_linux_ext_proc_fops);
418 proc_create("MultiuserMount", 0, proc_fs_cifs,
419 &cifs_multiuser_mount_proc_fops);
420 proc_create("SecurityFlags", 0, proc_fs_cifs,
421 &cifs_security_flags_proc_fops);
422 proc_create("LookupCacheEnabled", 0, proc_fs_cifs,
423 &cifs_lookup_cache_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424}
425
426void
427cifs_proc_clean(void)
428{
429 if (proc_fs_cifs == NULL)
430 return;
431
432 remove_proc_entry("DebugData", proc_fs_cifs);
433 remove_proc_entry("cifsFYI", proc_fs_cifs);
434 remove_proc_entry("traceSMB", proc_fs_cifs);
435#ifdef CONFIG_CIFS_STATS
436 remove_proc_entry("Stats", proc_fs_cifs);
437#endif
438 remove_proc_entry("MultiuserMount", proc_fs_cifs);
439 remove_proc_entry("OplockEnabled", proc_fs_cifs);
Steve French221601c2007-06-05 20:35:06 +0000440 remove_proc_entry("SecurityFlags", proc_fs_cifs);
Steve French221601c2007-06-05 20:35:06 +0000441 remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs);
442 remove_proc_entry("Experimental", proc_fs_cifs);
443 remove_proc_entry("LookupCacheEnabled", proc_fs_cifs);
Alexey Dobriyan36a5aeb2008-04-29 01:01:42 -0700444 remove_proc_entry("fs/cifs", NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445}
446
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000447static int cifsFYI_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000449 seq_printf(m, "%d\n", cifsFYI);
450 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000452
453static int cifsFYI_proc_open(struct inode *inode, struct file *file)
454{
455 return single_open(file, cifsFYI_proc_show, NULL);
456}
457
458static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer,
459 size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460{
461 char c;
462 int rc;
463
464 rc = get_user(c, buffer);
465 if (rc)
466 return rc;
467 if (c == '0' || c == 'n' || c == 'N')
468 cifsFYI = 0;
469 else if (c == '1' || c == 'y' || c == 'Y')
470 cifsFYI = 1;
Steve French221601c2007-06-05 20:35:06 +0000471 else if ((c > '1') && (c <= '9'))
Steve French1047abc2005-10-11 19:58:06 -0700472 cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
474 return count;
475}
476
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000477static const struct file_operations cifsFYI_proc_fops = {
478 .owner = THIS_MODULE,
479 .open = cifsFYI_proc_open,
480 .read = seq_read,
481 .llseek = seq_lseek,
482 .release = single_release,
483 .write = cifsFYI_proc_write,
484};
485
486static int cifs_oplock_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000488 seq_printf(m, "%d\n", oplockEnabled);
489 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000491
492static int cifs_oplock_proc_open(struct inode *inode, struct file *file)
493{
494 return single_open(file, cifs_oplock_proc_show, NULL);
495}
496
497static ssize_t cifs_oplock_proc_write(struct file *file,
498 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499{
500 char c;
501 int rc;
502
503 rc = get_user(c, buffer);
504 if (rc)
505 return rc;
506 if (c == '0' || c == 'n' || c == 'N')
507 oplockEnabled = 0;
508 else if (c == '1' || c == 'y' || c == 'Y')
509 oplockEnabled = 1;
510
511 return count;
512}
513
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000514static const struct file_operations cifs_oplock_proc_fops = {
515 .owner = THIS_MODULE,
516 .open = cifs_oplock_proc_open,
517 .read = seq_read,
518 .llseek = seq_lseek,
519 .release = single_release,
520 .write = cifs_oplock_proc_write,
521};
522
523static int cifs_experimental_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000525 seq_printf(m, "%d\n", experimEnabled);
526 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000528
529static int cifs_experimental_proc_open(struct inode *inode, struct file *file)
530{
531 return single_open(file, cifs_experimental_proc_show, NULL);
532}
533
534static ssize_t cifs_experimental_proc_write(struct file *file,
535 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536{
Steve Frenchec637e32005-12-12 20:53:18 -0800537 char c;
538 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539
Steve Frenchec637e32005-12-12 20:53:18 -0800540 rc = get_user(c, buffer);
541 if (rc)
542 return rc;
543 if (c == '0' || c == 'n' || c == 'N')
544 experimEnabled = 0;
545 else if (c == '1' || c == 'y' || c == 'Y')
546 experimEnabled = 1;
547 else if (c == '2')
548 experimEnabled = 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549
Steve Frenchec637e32005-12-12 20:53:18 -0800550 return count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551}
552
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000553static const struct file_operations cifs_experimental_proc_fops = {
554 .owner = THIS_MODULE,
555 .open = cifs_experimental_proc_open,
556 .read = seq_read,
557 .llseek = seq_lseek,
558 .release = single_release,
559 .write = cifs_experimental_proc_write,
560};
561
562static int cifs_linux_ext_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000564 seq_printf(m, "%d\n", linuxExtEnabled);
565 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000567
568static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file)
569{
570 return single_open(file, cifs_linux_ext_proc_show, NULL);
571}
572
573static ssize_t cifs_linux_ext_proc_write(struct file *file,
574 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575{
Steve French221601c2007-06-05 20:35:06 +0000576 char c;
577 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578
Steve French221601c2007-06-05 20:35:06 +0000579 rc = get_user(c, buffer);
580 if (rc)
581 return rc;
582 if (c == '0' || c == 'n' || c == 'N')
583 linuxExtEnabled = 0;
584 else if (c == '1' || c == 'y' || c == 'Y')
585 linuxExtEnabled = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586
Steve French221601c2007-06-05 20:35:06 +0000587 return count;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588}
589
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000590static const struct file_operations cifs_linux_ext_proc_fops = {
591 .owner = THIS_MODULE,
592 .open = cifs_linux_ext_proc_open,
593 .read = seq_read,
594 .llseek = seq_lseek,
595 .release = single_release,
596 .write = cifs_linux_ext_proc_write,
597};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000599static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000601 seq_printf(m, "%d\n", lookupCacheEnabled);
602 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000604
605static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file)
606{
607 return single_open(file, cifs_lookup_cache_proc_show, NULL);
608}
609
610static ssize_t cifs_lookup_cache_proc_write(struct file *file,
611 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612{
613 char c;
614 int rc;
615
616 rc = get_user(c, buffer);
617 if (rc)
618 return rc;
619 if (c == '0' || c == 'n' || c == 'N')
620 lookupCacheEnabled = 0;
621 else if (c == '1' || c == 'y' || c == 'Y')
622 lookupCacheEnabled = 1;
623
624 return count;
625}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000626
627static const struct file_operations cifs_lookup_cache_proc_fops = {
628 .owner = THIS_MODULE,
629 .open = cifs_lookup_cache_proc_open,
630 .read = seq_read,
631 .llseek = seq_lseek,
632 .release = single_release,
633 .write = cifs_lookup_cache_proc_write,
634};
635
636static int traceSMB_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000638 seq_printf(m, "%d\n", traceSMB);
639 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000641
642static int traceSMB_proc_open(struct inode *inode, struct file *file)
643{
644 return single_open(file, traceSMB_proc_show, NULL);
645}
646
647static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer,
648 size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700649{
650 char c;
651 int rc;
652
653 rc = get_user(c, buffer);
654 if (rc)
655 return rc;
656 if (c == '0' || c == 'n' || c == 'N')
657 traceSMB = 0;
658 else if (c == '1' || c == 'y' || c == 'Y')
659 traceSMB = 1;
660
661 return count;
662}
663
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000664static const struct file_operations traceSMB_proc_fops = {
665 .owner = THIS_MODULE,
666 .open = traceSMB_proc_open,
667 .read = seq_read,
668 .llseek = seq_lseek,
669 .release = single_release,
670 .write = traceSMB_proc_write,
671};
672
673static int cifs_multiuser_mount_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700674{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000675 seq_printf(m, "%d\n", multiuser_mount);
676 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000678
Steve French99b1f5b2008-07-24 02:37:45 +0000679static int cifs_multiuser_mount_proc_open(struct inode *inode, struct file *fh)
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000680{
Steve French99b1f5b2008-07-24 02:37:45 +0000681 return single_open(fh, cifs_multiuser_mount_proc_show, NULL);
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000682}
683
684static ssize_t cifs_multiuser_mount_proc_write(struct file *file,
685 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686{
687 char c;
688 int rc;
689
690 rc = get_user(c, buffer);
691 if (rc)
692 return rc;
693 if (c == '0' || c == 'n' || c == 'N')
694 multiuser_mount = 0;
695 else if (c == '1' || c == 'y' || c == 'Y')
696 multiuser_mount = 1;
697
698 return count;
699}
700
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000701static const struct file_operations cifs_multiuser_mount_proc_fops = {
702 .owner = THIS_MODULE,
703 .open = cifs_multiuser_mount_proc_open,
704 .read = seq_read,
705 .llseek = seq_lseek,
706 .release = single_release,
707 .write = cifs_multiuser_mount_proc_write,
708};
709
710static int cifs_security_flags_proc_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711{
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000712 seq_printf(m, "0x%x\n", extended_security);
713 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000715
716static int cifs_security_flags_proc_open(struct inode *inode, struct file *file)
717{
718 return single_open(file, cifs_security_flags_proc_show, NULL);
719}
720
721static ssize_t cifs_security_flags_proc_write(struct file *file,
722 const char __user *buffer, size_t count, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723{
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000724 unsigned int flags;
725 char flags_string[12];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700726 char c;
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000727
Steve French221601c2007-06-05 20:35:06 +0000728 if ((count < 1) || (count > 11))
Steve French39798772006-05-31 22:40:51 +0000729 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000731 memset(flags_string, 0, 12);
Steve French39798772006-05-31 22:40:51 +0000732
Steve French221601c2007-06-05 20:35:06 +0000733 if (copy_from_user(flags_string, buffer, count))
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000734 return -EFAULT;
Steve French39798772006-05-31 22:40:51 +0000735
Steve French221601c2007-06-05 20:35:06 +0000736 if (count < 3) {
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000737 /* single char or single char followed by null */
738 c = flags_string[0];
Steve Frencha0136892007-10-04 20:05:09 +0000739 if (c == '0' || c == 'n' || c == 'N') {
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000740 extended_security = CIFSSEC_DEF; /* default */
Steve Frencha0136892007-10-04 20:05:09 +0000741 return count;
742 } else if (c == '1' || c == 'y' || c == 'Y') {
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000743 extended_security = CIFSSEC_MAX;
Steve Frencha0136892007-10-04 20:05:09 +0000744 return count;
745 } else if (!isdigit(c)) {
746 cERROR(1, ("invalid flag %c", c));
747 return -EINVAL;
748 }
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000749 }
750 /* else we have a number */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000752 flags = simple_strtoul(flags_string, NULL, 0);
753
Steve French221601c2007-06-05 20:35:06 +0000754 cFYI(1, ("sec flags 0x%x", flags));
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000755
Steve French221601c2007-06-05 20:35:06 +0000756 if (flags <= 0) {
757 cERROR(1, ("invalid security flags %s", flags_string));
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000758 return -EINVAL;
759 }
760
Steve French221601c2007-06-05 20:35:06 +0000761 if (flags & ~CIFSSEC_MASK) {
762 cERROR(1, ("attempt to set unsupported security flags 0x%x",
Steve Frenchbdc4bf6e2006-06-02 22:57:13 +0000763 flags & ~CIFSSEC_MASK));
764 return -EINVAL;
765 }
766 /* flags look ok - update the global security flags for cifs module */
767 extended_security = flags;
Steve French762e5ab2007-06-28 18:41:42 +0000768 if (extended_security & CIFSSEC_MUST_SIGN) {
769 /* requiring signing implies signing is allowed */
770 extended_security |= CIFSSEC_MAY_SIGN;
771 cFYI(1, ("packet signing now required"));
772 } else if ((extended_security & CIFSSEC_MAY_SIGN) == 0) {
773 cFYI(1, ("packet signing disabled"));
774 }
775 /* BB should we turn on MAY flags for other MUST options? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 return count;
777}
Alexey Dobriyanf984c7b2008-07-24 02:34:24 +0000778
779static const struct file_operations cifs_security_flags_proc_fops = {
780 .owner = THIS_MODULE,
781 .open = cifs_security_flags_proc_open,
782 .read = seq_read,
783 .llseek = seq_lseek,
784 .release = single_release,
785 .write = cifs_security_flags_proc_write,
786};
Steve French90c81e02008-02-12 20:32:36 +0000787#else
Steve Frenche086fce2008-02-18 04:03:58 +0000788inline void cifs_proc_init(void)
Steve French90c81e02008-02-12 20:32:36 +0000789{
790}
791
Steve Frenche086fce2008-02-18 04:03:58 +0000792inline void cifs_proc_clean(void)
Steve French90c81e02008-02-12 20:32:36 +0000793{
794}
795#endif /* PROC_FS */