Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/cifs_debug.c | |
3 | * | |
b8643e1b | 4 | * Copyright (C) International Business Machines Corp., 2000,2005 |
1da177e4 LT |
5 | * |
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 | |
221601c3 | 10 | * the Free Software Foundation; either version 2 of the License, or |
1da177e4 | 11 | * (at your option) any later version. |
221601c3 | 12 | * |
1da177e4 LT |
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. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
221601c3 | 19 | * along with this program; if not, write to the Free Software |
1da177e4 LT |
20 | * 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" | |
6c91d362 | 32 | #include "cifsfs.h" |
1da177e4 LT |
33 | |
34 | void | |
35 | cifs_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 | ||
221601c3 | 42 | printk(KERN_DEBUG "%s: dump of %d bytes of data at 0x%p\n", |
1da177e4 LT |
43 | 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 | ||
3979877e | 60 | #ifdef CONFIG_CIFS_DEBUG2 |
ffdd6e4d | 61 | void cifs_dump_detail(struct smb_hdr *smb) |
3979877e | 62 | { |
221601c3 | 63 | cERROR(1, ("Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d", |
3979877e SF |
64 | smb->Command, smb->Status.CifsError, |
65 | smb->Flags, smb->Flags2, smb->Mid, smb->Pid)); | |
221601c3 | 66 | cERROR(1, ("smb buf %p len %d", smb, smbCalcSize_LE(smb))); |
3979877e SF |
67 | } |
68 | ||
69 | ||
ffdd6e4d | 70 | void cifs_dump_mids(struct TCP_Server_Info *server) |
3979877e SF |
71 | { |
72 | struct list_head *tmp; | |
ffdd6e4d | 73 | struct mid_q_entry *mid_entry; |
3979877e | 74 | |
221601c3 | 75 | if (server == NULL) |
3979877e SF |
76 | return; |
77 | ||
221601c3 | 78 | cERROR(1, ("Dump pending requests:")); |
3979877e SF |
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); | |
221601c3 SF |
82 | if (mid_entry) { |
83 | cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d", | |
3979877e SF |
84 | mid_entry->midState, |
85 | (int)mid_entry->command, | |
86 | mid_entry->pid, | |
87 | mid_entry->tsk, | |
88 | mid_entry->mid)); | |
89 | #ifdef CONFIG_CIFS_STATS2 | |
221601c3 | 90 | cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld", |
3979877e SF |
91 | mid_entry->largeBuf, |
92 | mid_entry->resp_buf, | |
93 | mid_entry->when_received, | |
94 | jiffies)); | |
95 | #endif /* STATS2 */ | |
221601c3 | 96 | cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp, |
3979877e | 97 | mid_entry->multiEnd)); |
221601c3 | 98 | if (mid_entry->resp_buf) { |
3979877e SF |
99 | cifs_dump_detail(mid_entry->resp_buf); |
100 | cifs_dump_mem("existing buf: ", | |
101 | mid_entry->resp_buf, | |
102 | 62 /* fixme */); | |
103 | } | |
3979877e SF |
104 | } |
105 | } | |
106 | spin_unlock(&GlobalMid_Lock); | |
107 | } | |
108 | #endif /* CONFIG_CIFS_DEBUG2 */ | |
109 | ||
1da177e4 LT |
110 | #ifdef CONFIG_PROC_FS |
111 | static int | |
112 | cifs_debug_data_read(char *buf, char **beginBuffer, off_t offset, | |
113 | int count, int *eof, void *data) | |
114 | { | |
115 | struct list_head *tmp; | |
116 | struct list_head *tmp1; | |
ffdd6e4d | 117 | struct mid_q_entry *mid_entry; |
1da177e4 LT |
118 | struct cifsSesInfo *ses; |
119 | struct cifsTconInfo *tcon; | |
120 | int i; | |
121 | int length = 0; | |
ffdd6e4d | 122 | char *original_buf = buf; |
1da177e4 LT |
123 | |
124 | *beginBuffer = buf + offset; | |
125 | ||
1da177e4 LT |
126 | length = |
127 | sprintf(buf, | |
128 | "Display Internal CIFS Data Structures for Debugging\n" | |
129 | "---------------------------------------------------\n"); | |
130 | buf += length; | |
221601c3 | 131 | length = sprintf(buf, "CIFS Version %s\n", CIFS_VERSION); |
6c91d362 | 132 | buf += length; |
221601c3 SF |
133 | length = sprintf(buf, |
134 | "Active VFS Requests: %d\n", GlobalTotalActiveXid); | |
131afd0b | 135 | buf += length; |
6c91d362 | 136 | length = sprintf(buf, "Servers:"); |
1da177e4 LT |
137 | buf += length; |
138 | ||
139 | i = 0; | |
140 | read_lock(&GlobalSMBSeslock); | |
141 | list_for_each(tmp, &GlobalSMBSessionList) { | |
142 | i++; | |
143 | ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList); | |
221601c3 | 144 | if ((ses->serverDomain == NULL) || (ses->serverOS == NULL) || |
433dc24f | 145 | (ses->serverNOS == NULL)) { |
bd2abf17 SF |
146 | buf += sprintf(buf, "\nentry for %s not fully " |
147 | "displayed\n\t", ses->serverName); | |
433dc24f SF |
148 | } else { |
149 | length = | |
150 | sprintf(buf, | |
221601c3 SF |
151 | "\n%d) Name: %s Domain: %s Mounts: %d OS:" |
152 | " %s \n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
153 | " session status: %d\t", | |
b8643e1b SF |
154 | i, ses->serverName, ses->serverDomain, |
155 | atomic_read(&ses->inUse), | |
156 | ses->serverOS, ses->serverNOS, | |
221601c3 | 157 | ses->capabilities, ses->status); |
433dc24f SF |
158 | buf += length; |
159 | } | |
221601c3 SF |
160 | if (ses->server) { |
161 | buf += sprintf(buf, "TCP status: %d\n\tLocal Users To " | |
162 | "Server: %d SecMode: 0x%x Req On Wire: %d", | |
1da177e4 LT |
163 | ses->server->tcpStatus, |
164 | atomic_read(&ses->server->socketUseCount), | |
165 | ses->server->secMode, | |
166 | atomic_read(&ses->server->inFlight)); | |
131afd0b SF |
167 | |
168 | #ifdef CONFIG_CIFS_STATS2 | |
68058e75 | 169 | buf += sprintf(buf, " In Send: %d In MaxReq Wait: %d", |
221601c3 | 170 | atomic_read(&ses->server->inSend), |
131afd0b SF |
171 | atomic_read(&ses->server->num_waiters)); |
172 | #endif | |
173 | ||
6c91d362 | 174 | length = sprintf(buf, "\nMIDs:\n"); |
1da177e4 LT |
175 | buf += length; |
176 | ||
177 | spin_lock(&GlobalMid_Lock); | |
178 | list_for_each(tmp1, &ses->server->pending_mid_q) { | |
179 | mid_entry = list_entry(tmp1, struct | |
180 | mid_q_entry, | |
181 | qhead); | |
221601c3 SF |
182 | if (mid_entry) { |
183 | length = sprintf(buf, | |
184 | "State: %d com: %d pid:" | |
185 | " %d tsk: %p mid %d\n", | |
186 | mid_entry->midState, | |
187 | (int)mid_entry->command, | |
188 | mid_entry->pid, | |
189 | mid_entry->tsk, | |
190 | mid_entry->mid); | |
1da177e4 LT |
191 | buf += length; |
192 | } | |
193 | } | |
221601c3 | 194 | spin_unlock(&GlobalMid_Lock); |
1da177e4 LT |
195 | } |
196 | ||
197 | } | |
198 | read_unlock(&GlobalSMBSeslock); | |
199 | sprintf(buf, "\n"); | |
200 | buf++; | |
201 | ||
6c91d362 | 202 | length = sprintf(buf, "Shares:"); |
1da177e4 LT |
203 | buf += length; |
204 | ||
205 | i = 0; | |
206 | read_lock(&GlobalSMBSeslock); | |
207 | list_for_each(tmp, &GlobalTreeConnectionList) { | |
208 | __u32 dev_type; | |
209 | i++; | |
210 | tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); | |
211 | dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType); | |
88f370a6 SF |
212 | length = sprintf(buf, "\n%d) %s Uses: %d ", i, |
213 | tcon->treeName, atomic_read(&tcon->useCount)); | |
214 | buf += length; | |
215 | if (tcon->nativeFileSystem) { | |
a23d3069 SF |
216 | length = sprintf(buf, "Type: %s ", |
217 | tcon->nativeFileSystem); | |
88f370a6 SF |
218 | buf += length; |
219 | } | |
220 | length = sprintf(buf, "DevInfo: 0x%x Attributes: 0x%x" | |
221 | "\nPathComponentMax: %d Status: %d", | |
1da177e4 LT |
222 | le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics), |
223 | le32_to_cpu(tcon->fsAttrInfo.Attributes), | |
224 | le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength), | |
225 | tcon->tidStatus); | |
221601c3 | 226 | buf += length; |
1da177e4 LT |
227 | if (dev_type == FILE_DEVICE_DISK) |
228 | length = sprintf(buf, " type: DISK "); | |
229 | else if (dev_type == FILE_DEVICE_CD_ROM) | |
230 | length = sprintf(buf, " type: CDROM "); | |
231 | else | |
232 | length = | |
233 | sprintf(buf, " type: %d ", dev_type); | |
234 | buf += length; | |
221601c3 | 235 | if (tcon->tidStatus == CifsNeedReconnect) { |
1da177e4 LT |
236 | buf += sprintf(buf, "\tDISCONNECTED "); |
237 | length += 14; | |
238 | } | |
239 | } | |
240 | read_unlock(&GlobalSMBSeslock); | |
241 | ||
242 | length = sprintf(buf, "\n"); | |
243 | buf += length; | |
244 | ||
245 | /* BB add code to dump additional info such as TCP session info now */ | |
246 | /* Now calculate total size of returned data */ | |
247 | length = buf - original_buf; | |
248 | ||
221601c3 | 249 | if (offset + count >= length) |
1da177e4 | 250 | *eof = 1; |
221601c3 | 251 | if (length < offset) { |
1da177e4 LT |
252 | *eof = 1; |
253 | return 0; | |
254 | } else { | |
255 | length = length - offset; | |
256 | } | |
257 | if (length > count) | |
258 | length = count; | |
259 | ||
260 | return length; | |
261 | } | |
262 | ||
263 | #ifdef CONFIG_CIFS_STATS | |
1047abc1 SF |
264 | |
265 | static int | |
266 | cifs_stats_write(struct file *file, const char __user *buffer, | |
221601c3 | 267 | unsigned long count, void *data) |
1047abc1 | 268 | { |
221601c3 SF |
269 | char c; |
270 | int rc; | |
1047abc1 SF |
271 | struct list_head *tmp; |
272 | struct cifsTconInfo *tcon; | |
273 | ||
221601c3 SF |
274 | rc = get_user(c, buffer); |
275 | if (rc) | |
276 | return rc; | |
1047abc1 | 277 | |
221601c3 | 278 | if (c == '1' || c == 'y' || c == 'Y' || c == '0') { |
1047abc1 | 279 | read_lock(&GlobalSMBSeslock); |
4498eed5 SF |
280 | #ifdef CONFIG_CIFS_STATS2 |
281 | atomic_set(&totBufAllocCount, 0); | |
282 | atomic_set(&totSmBufAllocCount, 0); | |
283 | #endif /* CONFIG_CIFS_STATS2 */ | |
1047abc1 SF |
284 | list_for_each(tmp, &GlobalTreeConnectionList) { |
285 | tcon = list_entry(tmp, struct cifsTconInfo, | |
286 | cifsConnectionList); | |
287 | atomic_set(&tcon->num_smbs_sent, 0); | |
288 | atomic_set(&tcon->num_writes, 0); | |
289 | atomic_set(&tcon->num_reads, 0); | |
290 | atomic_set(&tcon->num_oplock_brks, 0); | |
291 | atomic_set(&tcon->num_opens, 0); | |
292 | atomic_set(&tcon->num_closes, 0); | |
293 | atomic_set(&tcon->num_deletes, 0); | |
294 | atomic_set(&tcon->num_mkdirs, 0); | |
295 | atomic_set(&tcon->num_rmdirs, 0); | |
296 | atomic_set(&tcon->num_renames, 0); | |
297 | atomic_set(&tcon->num_t2renames, 0); | |
298 | atomic_set(&tcon->num_ffirst, 0); | |
299 | atomic_set(&tcon->num_fnext, 0); | |
300 | atomic_set(&tcon->num_fclose, 0); | |
301 | atomic_set(&tcon->num_hardlinks, 0); | |
302 | atomic_set(&tcon->num_symlinks, 0); | |
303 | atomic_set(&tcon->num_locks, 0); | |
304 | } | |
305 | read_unlock(&GlobalSMBSeslock); | |
306 | } | |
307 | ||
221601c3 | 308 | return count; |
1047abc1 SF |
309 | } |
310 | ||
1da177e4 LT |
311 | static int |
312 | cifs_stats_read(char *buf, char **beginBuffer, off_t offset, | |
313 | int count, int *eof, void *data) | |
314 | { | |
221601c3 | 315 | int item_length, i, length; |
1da177e4 LT |
316 | struct list_head *tmp; |
317 | struct cifsTconInfo *tcon; | |
318 | ||
319 | *beginBuffer = buf + offset; | |
320 | ||
321 | length = sprintf(buf, | |
322 | "Resources in use\nCIFS Session: %d\n", | |
323 | sesInfoAllocCount.counter); | |
324 | buf += length; | |
221601c3 SF |
325 | item_length = |
326 | sprintf(buf, "Share (unique mount targets): %d\n", | |
1da177e4 LT |
327 | tconInfoAllocCount.counter); |
328 | length += item_length; | |
221601c3 SF |
329 | buf += item_length; |
330 | item_length = | |
331 | sprintf(buf, "SMB Request/Response Buffer: %d Pool size: %d\n", | |
b8643e1b SF |
332 | bufAllocCount.counter, |
333 | cifs_min_rcv + tcpSesAllocCount.counter); | |
1da177e4 LT |
334 | length += item_length; |
335 | buf += item_length; | |
221601c3 SF |
336 | item_length = |
337 | sprintf(buf, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", | |
338 | smBufAllocCount.counter, cifs_min_small); | |
1da177e4 LT |
339 | length += item_length; |
340 | buf += item_length; | |
07475ffb | 341 | #ifdef CONFIG_CIFS_STATS2 |
221601c3 | 342 | item_length = sprintf(buf, "Total Large %d Small %d Allocations\n", |
07475ffb | 343 | atomic_read(&totBufAllocCount), |
221601c3 | 344 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
345 | length += item_length; |
346 | buf += item_length; | |
347 | #endif /* CONFIG_CIFS_STATS2 */ | |
348 | ||
221601c3 SF |
349 | item_length = |
350 | sprintf(buf, "Operations (MIDs): %d\n", | |
1da177e4 LT |
351 | midCount.counter); |
352 | length += item_length; | |
353 | buf += item_length; | |
354 | item_length = sprintf(buf, | |
355 | "\n%d session %d share reconnects\n", | |
221601c3 | 356 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 LT |
357 | length += item_length; |
358 | buf += item_length; | |
359 | ||
360 | item_length = sprintf(buf, | |
361 | "Total vfs operations: %d maximum at one time: %d\n", | |
221601c3 | 362 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
363 | length += item_length; |
364 | buf += item_length; | |
365 | ||
366 | i = 0; | |
367 | read_lock(&GlobalSMBSeslock); | |
368 | list_for_each(tmp, &GlobalTreeConnectionList) { | |
369 | i++; | |
370 | tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList); | |
221601c3 | 371 | item_length = sprintf(buf, "\n%d) %s", i, tcon->treeName); |
1da177e4 LT |
372 | buf += item_length; |
373 | length += item_length; | |
221601c3 | 374 | if (tcon->tidStatus == CifsNeedReconnect) { |
1da177e4 LT |
375 | buf += sprintf(buf, "\tDISCONNECTED "); |
376 | length += 14; | |
377 | } | |
a5a2b489 | 378 | item_length = sprintf(buf, "\nSMBs: %d Oplock Breaks: %d", |
1da177e4 LT |
379 | atomic_read(&tcon->num_smbs_sent), |
380 | atomic_read(&tcon->num_oplock_brks)); | |
381 | buf += item_length; | |
382 | length += item_length; | |
0ae0efad | 383 | item_length = sprintf(buf, "\nReads: %d Bytes: %lld", |
1da177e4 LT |
384 | atomic_read(&tcon->num_reads), |
385 | (long long)(tcon->bytes_read)); | |
386 | buf += item_length; | |
387 | length += item_length; | |
a5a2b489 | 388 | item_length = sprintf(buf, "\nWrites: %d Bytes: %lld", |
1da177e4 LT |
389 | atomic_read(&tcon->num_writes), |
390 | (long long)(tcon->bytes_written)); | |
221601c3 SF |
391 | buf += item_length; |
392 | length += item_length; | |
393 | item_length = sprintf(buf, | |
a5a2b489 | 394 | "\nLocks: %d HardLinks: %d Symlinks: %d", |
221601c3 | 395 | atomic_read(&tcon->num_locks), |
a5a2b489 SF |
396 | atomic_read(&tcon->num_hardlinks), |
397 | atomic_read(&tcon->num_symlinks)); | |
221601c3 SF |
398 | buf += item_length; |
399 | length += item_length; | |
a5a2b489 SF |
400 | |
401 | item_length = sprintf(buf, "\nOpens: %d Closes: %d Deletes: %d", | |
402 | atomic_read(&tcon->num_opens), | |
403 | atomic_read(&tcon->num_closes), | |
404 | atomic_read(&tcon->num_deletes)); | |
1da177e4 LT |
405 | buf += item_length; |
406 | length += item_length; | |
a5a2b489 | 407 | item_length = sprintf(buf, "\nMkdirs: %d Rmdirs: %d", |
1da177e4 LT |
408 | atomic_read(&tcon->num_mkdirs), |
409 | atomic_read(&tcon->num_rmdirs)); | |
410 | buf += item_length; | |
411 | length += item_length; | |
a5a2b489 | 412 | item_length = sprintf(buf, "\nRenames: %d T2 Renames %d", |
1da177e4 LT |
413 | atomic_read(&tcon->num_renames), |
414 | atomic_read(&tcon->num_t2renames)); | |
415 | buf += item_length; | |
416 | length += item_length; | |
a5a2b489 | 417 | item_length = sprintf(buf, "\nFindFirst: %d FNext %d FClose %d", |
0c0ff093 SF |
418 | atomic_read(&tcon->num_ffirst), |
419 | atomic_read(&tcon->num_fnext), | |
420 | atomic_read(&tcon->num_fclose)); | |
421 | buf += item_length; | |
422 | length += item_length; | |
1da177e4 LT |
423 | } |
424 | read_unlock(&GlobalSMBSeslock); | |
425 | ||
221601c3 | 426 | buf += sprintf(buf, "\n"); |
1da177e4 LT |
427 | length++; |
428 | ||
221601c3 | 429 | if (offset + count >= length) |
1da177e4 | 430 | *eof = 1; |
221601c3 | 431 | if (length < offset) { |
1da177e4 LT |
432 | *eof = 1; |
433 | return 0; | |
434 | } else { | |
435 | length = length - offset; | |
436 | } | |
437 | if (length > count) | |
438 | length = count; | |
221601c3 | 439 | |
1da177e4 LT |
440 | return length; |
441 | } | |
442 | #endif | |
443 | ||
444 | static struct proc_dir_entry *proc_fs_cifs; | |
445 | read_proc_t cifs_txanchor_read; | |
446 | static read_proc_t cifsFYI_read; | |
447 | static write_proc_t cifsFYI_write; | |
448 | static read_proc_t oplockEnabled_read; | |
449 | static write_proc_t oplockEnabled_write; | |
450 | static read_proc_t lookupFlag_read; | |
451 | static write_proc_t lookupFlag_write; | |
452 | static read_proc_t traceSMB_read; | |
453 | static write_proc_t traceSMB_write; | |
454 | static read_proc_t multiuser_mount_read; | |
455 | static write_proc_t multiuser_mount_write; | |
bdc4bf6e SF |
456 | static read_proc_t security_flags_read; |
457 | static write_proc_t security_flags_write; | |
3979877e | 458 | /* static read_proc_t ntlmv2_enabled_read; |
1da177e4 LT |
459 | static write_proc_t ntlmv2_enabled_write; |
460 | static read_proc_t packet_signing_enabled_read; | |
3979877e | 461 | static write_proc_t packet_signing_enabled_write;*/ |
ec637e3f SF |
462 | static read_proc_t experimEnabled_read; |
463 | static write_proc_t experimEnabled_write; | |
1da177e4 LT |
464 | static read_proc_t linuxExtensionsEnabled_read; |
465 | static write_proc_t linuxExtensionsEnabled_write; | |
466 | ||
467 | void | |
468 | cifs_proc_init(void) | |
469 | { | |
470 | struct proc_dir_entry *pde; | |
471 | ||
472 | proc_fs_cifs = proc_mkdir("cifs", proc_root_fs); | |
473 | if (proc_fs_cifs == NULL) | |
474 | return; | |
475 | ||
476 | proc_fs_cifs->owner = THIS_MODULE; | |
477 | create_proc_read_entry("DebugData", 0, proc_fs_cifs, | |
478 | cifs_debug_data_read, NULL); | |
479 | ||
480 | #ifdef CONFIG_CIFS_STATS | |
1047abc1 | 481 | pde = create_proc_read_entry("Stats", 0, proc_fs_cifs, |
1da177e4 | 482 | cifs_stats_read, NULL); |
1047abc1 SF |
483 | if (pde) |
484 | pde->write_proc = cifs_stats_write; | |
1da177e4 LT |
485 | #endif |
486 | pde = create_proc_read_entry("cifsFYI", 0, proc_fs_cifs, | |
487 | cifsFYI_read, NULL); | |
488 | if (pde) | |
489 | pde->write_proc = cifsFYI_write; | |
490 | ||
491 | pde = | |
492 | create_proc_read_entry("traceSMB", 0, proc_fs_cifs, | |
493 | traceSMB_read, NULL); | |
494 | if (pde) | |
495 | pde->write_proc = traceSMB_write; | |
496 | ||
497 | pde = create_proc_read_entry("OplockEnabled", 0, proc_fs_cifs, | |
498 | oplockEnabled_read, NULL); | |
499 | if (pde) | |
500 | pde->write_proc = oplockEnabled_write; | |
501 | ||
0c0ff093 | 502 | pde = create_proc_read_entry("Experimental", 0, proc_fs_cifs, |
ec637e3f | 503 | experimEnabled_read, NULL); |
1da177e4 | 504 | if (pde) |
ec637e3f | 505 | pde->write_proc = experimEnabled_write; |
1da177e4 LT |
506 | |
507 | pde = create_proc_read_entry("LinuxExtensionsEnabled", 0, proc_fs_cifs, | |
508 | linuxExtensionsEnabled_read, NULL); | |
509 | if (pde) | |
510 | pde->write_proc = linuxExtensionsEnabled_write; | |
511 | ||
512 | pde = | |
513 | create_proc_read_entry("MultiuserMount", 0, proc_fs_cifs, | |
514 | multiuser_mount_read, NULL); | |
515 | if (pde) | |
516 | pde->write_proc = multiuser_mount_write; | |
517 | ||
518 | pde = | |
7c7b25bc | 519 | create_proc_read_entry("SecurityFlags", 0, proc_fs_cifs, |
bdc4bf6e | 520 | security_flags_read, NULL); |
1da177e4 | 521 | if (pde) |
bdc4bf6e | 522 | pde->write_proc = security_flags_write; |
1da177e4 LT |
523 | |
524 | pde = | |
525 | create_proc_read_entry("LookupCacheEnabled", 0, proc_fs_cifs, | |
526 | lookupFlag_read, NULL); | |
527 | if (pde) | |
528 | pde->write_proc = lookupFlag_write; | |
529 | ||
3979877e | 530 | /* pde = |
1da177e4 LT |
531 | create_proc_read_entry("NTLMV2Enabled", 0, proc_fs_cifs, |
532 | ntlmv2_enabled_read, NULL); | |
533 | if (pde) | |
534 | pde->write_proc = ntlmv2_enabled_write; | |
535 | ||
536 | pde = | |
537 | create_proc_read_entry("PacketSigningEnabled", 0, proc_fs_cifs, | |
538 | packet_signing_enabled_read, NULL); | |
539 | if (pde) | |
3979877e | 540 | pde->write_proc = packet_signing_enabled_write;*/ |
1da177e4 LT |
541 | } |
542 | ||
543 | void | |
544 | cifs_proc_clean(void) | |
545 | { | |
546 | if (proc_fs_cifs == NULL) | |
547 | return; | |
548 | ||
549 | remove_proc_entry("DebugData", proc_fs_cifs); | |
550 | remove_proc_entry("cifsFYI", proc_fs_cifs); | |
551 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
552 | #ifdef CONFIG_CIFS_STATS | |
553 | remove_proc_entry("Stats", proc_fs_cifs); | |
554 | #endif | |
555 | remove_proc_entry("MultiuserMount", proc_fs_cifs); | |
556 | remove_proc_entry("OplockEnabled", proc_fs_cifs); | |
3979877e | 557 | /* remove_proc_entry("NTLMV2Enabled",proc_fs_cifs); */ |
221601c3 SF |
558 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
559 | /* remove_proc_entry("PacketSigningEnabled", proc_fs_cifs); */ | |
560 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); | |
561 | remove_proc_entry("Experimental", proc_fs_cifs); | |
562 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); | |
1da177e4 LT |
563 | remove_proc_entry("cifs", proc_root_fs); |
564 | } | |
565 | ||
566 | static int | |
567 | cifsFYI_read(char *page, char **start, off_t off, int count, | |
568 | int *eof, void *data) | |
569 | { | |
570 | int len; | |
571 | ||
572 | len = sprintf(page, "%d\n", cifsFYI); | |
573 | ||
574 | len -= off; | |
575 | *start = page + off; | |
576 | ||
577 | if (len > count) | |
578 | len = count; | |
579 | else | |
580 | *eof = 1; | |
581 | ||
582 | if (len < 0) | |
583 | len = 0; | |
584 | ||
585 | return len; | |
586 | } | |
587 | static int | |
588 | cifsFYI_write(struct file *file, const char __user *buffer, | |
589 | unsigned long count, void *data) | |
590 | { | |
591 | char c; | |
592 | int rc; | |
593 | ||
594 | rc = get_user(c, buffer); | |
595 | if (rc) | |
596 | return rc; | |
597 | if (c == '0' || c == 'n' || c == 'N') | |
598 | cifsFYI = 0; | |
599 | else if (c == '1' || c == 'y' || c == 'Y') | |
600 | cifsFYI = 1; | |
221601c3 | 601 | else if ((c > '1') && (c <= '9')) |
1047abc1 | 602 | cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */ |
1da177e4 LT |
603 | |
604 | return count; | |
605 | } | |
606 | ||
607 | static int | |
608 | oplockEnabled_read(char *page, char **start, off_t off, | |
609 | int count, int *eof, void *data) | |
610 | { | |
611 | int len; | |
612 | ||
613 | len = sprintf(page, "%d\n", oplockEnabled); | |
614 | ||
615 | len -= off; | |
616 | *start = page + off; | |
617 | ||
618 | if (len > count) | |
619 | len = count; | |
620 | else | |
621 | *eof = 1; | |
622 | ||
623 | if (len < 0) | |
624 | len = 0; | |
625 | ||
626 | return len; | |
627 | } | |
628 | static int | |
629 | oplockEnabled_write(struct file *file, const char __user *buffer, | |
630 | unsigned long count, void *data) | |
631 | { | |
632 | char c; | |
633 | int rc; | |
634 | ||
635 | rc = get_user(c, buffer); | |
636 | if (rc) | |
637 | return rc; | |
638 | if (c == '0' || c == 'n' || c == 'N') | |
639 | oplockEnabled = 0; | |
640 | else if (c == '1' || c == 'y' || c == 'Y') | |
641 | oplockEnabled = 1; | |
642 | ||
643 | return count; | |
644 | } | |
645 | ||
646 | static int | |
ec637e3f | 647 | experimEnabled_read(char *page, char **start, off_t off, |
221601c3 | 648 | int count, int *eof, void *data) |
1da177e4 | 649 | { |
221601c3 | 650 | int len; |
1da177e4 | 651 | |
221601c3 | 652 | len = sprintf(page, "%d\n", experimEnabled); |
ec637e3f | 653 | |
221601c3 SF |
654 | len -= off; |
655 | *start = page + off; | |
1da177e4 | 656 | |
221601c3 SF |
657 | if (len > count) |
658 | len = count; | |
659 | else | |
660 | *eof = 1; | |
1da177e4 | 661 | |
221601c3 SF |
662 | if (len < 0) |
663 | len = 0; | |
1da177e4 | 664 | |
221601c3 | 665 | return len; |
1da177e4 LT |
666 | } |
667 | static int | |
ec637e3f | 668 | experimEnabled_write(struct file *file, const char __user *buffer, |
221601c3 | 669 | unsigned long count, void *data) |
1da177e4 | 670 | { |
ec637e3f SF |
671 | char c; |
672 | int rc; | |
1da177e4 | 673 | |
ec637e3f SF |
674 | rc = get_user(c, buffer); |
675 | if (rc) | |
676 | return rc; | |
677 | if (c == '0' || c == 'n' || c == 'N') | |
678 | experimEnabled = 0; | |
679 | else if (c == '1' || c == 'y' || c == 'Y') | |
680 | experimEnabled = 1; | |
681 | else if (c == '2') | |
682 | experimEnabled = 2; | |
1da177e4 | 683 | |
ec637e3f | 684 | return count; |
1da177e4 LT |
685 | } |
686 | ||
687 | static int | |
688 | linuxExtensionsEnabled_read(char *page, char **start, off_t off, | |
221601c3 | 689 | int count, int *eof, void *data) |
1da177e4 | 690 | { |
221601c3 | 691 | int len; |
1da177e4 | 692 | |
221601c3 SF |
693 | len = sprintf(page, "%d\n", linuxExtEnabled); |
694 | len -= off; | |
695 | *start = page + off; | |
1da177e4 | 696 | |
221601c3 SF |
697 | if (len > count) |
698 | len = count; | |
699 | else | |
700 | *eof = 1; | |
1da177e4 | 701 | |
221601c3 SF |
702 | if (len < 0) |
703 | len = 0; | |
1da177e4 | 704 | |
221601c3 | 705 | return len; |
1da177e4 LT |
706 | } |
707 | static int | |
708 | linuxExtensionsEnabled_write(struct file *file, const char __user *buffer, | |
221601c3 | 709 | unsigned long count, void *data) |
1da177e4 | 710 | { |
221601c3 SF |
711 | char c; |
712 | int rc; | |
713 | ||
714 | rc = get_user(c, buffer); | |
715 | if (rc) | |
716 | return rc; | |
717 | if (c == '0' || c == 'n' || c == 'N') | |
718 | linuxExtEnabled = 0; | |
719 | else if (c == '1' || c == 'y' || c == 'Y') | |
720 | linuxExtEnabled = 1; | |
721 | ||
722 | return count; | |
1da177e4 LT |
723 | } |
724 | ||
725 | ||
726 | static int | |
727 | lookupFlag_read(char *page, char **start, off_t off, | |
221601c3 | 728 | int count, int *eof, void *data) |
1da177e4 LT |
729 | { |
730 | int len; | |
731 | ||
732 | len = sprintf(page, "%d\n", lookupCacheEnabled); | |
733 | ||
734 | len -= off; | |
735 | *start = page + off; | |
736 | ||
737 | if (len > count) | |
738 | len = count; | |
739 | else | |
740 | *eof = 1; | |
741 | ||
742 | if (len < 0) | |
743 | len = 0; | |
744 | ||
745 | return len; | |
746 | } | |
747 | static int | |
748 | lookupFlag_write(struct file *file, const char __user *buffer, | |
749 | unsigned long count, void *data) | |
750 | { | |
751 | char c; | |
752 | int rc; | |
753 | ||
754 | rc = get_user(c, buffer); | |
755 | if (rc) | |
756 | return rc; | |
757 | if (c == '0' || c == 'n' || c == 'N') | |
758 | lookupCacheEnabled = 0; | |
759 | else if (c == '1' || c == 'y' || c == 'Y') | |
760 | lookupCacheEnabled = 1; | |
761 | ||
762 | return count; | |
763 | } | |
764 | static int | |
765 | traceSMB_read(char *page, char **start, off_t off, int count, | |
766 | int *eof, void *data) | |
767 | { | |
768 | int len; | |
769 | ||
770 | len = sprintf(page, "%d\n", traceSMB); | |
771 | ||
772 | len -= off; | |
773 | *start = page + off; | |
774 | ||
775 | if (len > count) | |
776 | len = count; | |
777 | else | |
778 | *eof = 1; | |
779 | ||
780 | if (len < 0) | |
781 | len = 0; | |
782 | ||
783 | return len; | |
784 | } | |
785 | static int | |
786 | traceSMB_write(struct file *file, const char __user *buffer, | |
787 | unsigned long count, void *data) | |
788 | { | |
789 | char c; | |
790 | int rc; | |
791 | ||
792 | rc = get_user(c, buffer); | |
793 | if (rc) | |
794 | return rc; | |
795 | if (c == '0' || c == 'n' || c == 'N') | |
796 | traceSMB = 0; | |
797 | else if (c == '1' || c == 'y' || c == 'Y') | |
798 | traceSMB = 1; | |
799 | ||
800 | return count; | |
801 | } | |
802 | ||
803 | static int | |
804 | multiuser_mount_read(char *page, char **start, off_t off, | |
805 | int count, int *eof, void *data) | |
806 | { | |
807 | int len; | |
808 | ||
809 | len = sprintf(page, "%d\n", multiuser_mount); | |
810 | ||
811 | len -= off; | |
812 | *start = page + off; | |
813 | ||
814 | if (len > count) | |
815 | len = count; | |
816 | else | |
817 | *eof = 1; | |
818 | ||
819 | if (len < 0) | |
820 | len = 0; | |
821 | ||
822 | return len; | |
823 | } | |
824 | static int | |
825 | multiuser_mount_write(struct file *file, const char __user *buffer, | |
826 | unsigned long count, void *data) | |
827 | { | |
828 | char c; | |
829 | int rc; | |
830 | ||
831 | rc = get_user(c, buffer); | |
832 | if (rc) | |
833 | return rc; | |
834 | if (c == '0' || c == 'n' || c == 'N') | |
835 | multiuser_mount = 0; | |
836 | else if (c == '1' || c == 'y' || c == 'Y') | |
837 | multiuser_mount = 1; | |
838 | ||
839 | return count; | |
840 | } | |
841 | ||
842 | static int | |
bdc4bf6e | 843 | security_flags_read(char *page, char **start, off_t off, |
1da177e4 LT |
844 | int count, int *eof, void *data) |
845 | { | |
846 | int len; | |
847 | ||
3979877e | 848 | len = sprintf(page, "0x%x\n", extended_security); |
1da177e4 LT |
849 | |
850 | len -= off; | |
851 | *start = page + off; | |
852 | ||
853 | if (len > count) | |
854 | len = count; | |
855 | else | |
856 | *eof = 1; | |
857 | ||
858 | if (len < 0) | |
859 | len = 0; | |
860 | ||
861 | return len; | |
862 | } | |
863 | static int | |
bdc4bf6e | 864 | security_flags_write(struct file *file, const char __user *buffer, |
1da177e4 LT |
865 | unsigned long count, void *data) |
866 | { | |
bdc4bf6e SF |
867 | unsigned int flags; |
868 | char flags_string[12]; | |
1da177e4 | 869 | char c; |
bdc4bf6e | 870 | |
221601c3 | 871 | if ((count < 1) || (count > 11)) |
3979877e | 872 | return -EINVAL; |
1da177e4 | 873 | |
bdc4bf6e | 874 | memset(flags_string, 0, 12); |
3979877e | 875 | |
221601c3 | 876 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 877 | return -EFAULT; |
3979877e | 878 | |
221601c3 | 879 | if (count < 3) { |
bdc4bf6e SF |
880 | /* single char or single char followed by null */ |
881 | c = flags_string[0]; | |
882 | if (c == '0' || c == 'n' || c == 'N') | |
883 | extended_security = CIFSSEC_DEF; /* default */ | |
884 | else if (c == '1' || c == 'y' || c == 'Y') | |
885 | extended_security = CIFSSEC_MAX; | |
886 | return count; | |
887 | } | |
888 | /* else we have a number */ | |
889 | ||
890 | flags = simple_strtoul(flags_string, NULL, 0); | |
891 | ||
221601c3 | 892 | cFYI(1, ("sec flags 0x%x", flags)); |
bdc4bf6e | 893 | |
221601c3 SF |
894 | if (flags <= 0) { |
895 | cERROR(1, ("invalid security flags %s", flags_string)); | |
bdc4bf6e SF |
896 | return -EINVAL; |
897 | } | |
1da177e4 | 898 | |
221601c3 SF |
899 | if (flags & ~CIFSSEC_MASK) { |
900 | cERROR(1, ("attempt to set unsupported security flags 0x%x", | |
bdc4bf6e SF |
901 | flags & ~CIFSSEC_MASK)); |
902 | return -EINVAL; | |
903 | } | |
904 | /* flags look ok - update the global security flags for cifs module */ | |
905 | extended_security = flags; | |
762e5ab7 SF |
906 | if (extended_security & CIFSSEC_MUST_SIGN) { |
907 | /* requiring signing implies signing is allowed */ | |
908 | extended_security |= CIFSSEC_MAY_SIGN; | |
909 | cFYI(1, ("packet signing now required")); | |
910 | } else if ((extended_security & CIFSSEC_MAY_SIGN) == 0) { | |
911 | cFYI(1, ("packet signing disabled")); | |
912 | } | |
913 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
914 | return count; |
915 | } | |
1da177e4 | 916 | #endif |