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 |
d4e4854f | 61 | void cifs_dump_detail(void *buf) |
3979877e | 62 | { |
d4e4854f PS |
63 | struct smb_hdr *smb = (struct smb_hdr *)buf; |
64 | ||
b6b38f70 | 65 | cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d", |
3979877e | 66 | smb->Command, smb->Status.CifsError, |
b6b38f70 | 67 | smb->Flags, smb->Flags2, smb->Mid, smb->Pid); |
820a803f | 68 | cERROR(1, "smb buf %p len %d", smb, smbCalcSize(smb)); |
3979877e SF |
69 | } |
70 | ||
ffdd6e4d | 71 | void cifs_dump_mids(struct TCP_Server_Info *server) |
3979877e SF |
72 | { |
73 | struct list_head *tmp; | |
ffdd6e4d | 74 | struct mid_q_entry *mid_entry; |
3979877e | 75 | |
221601c3 | 76 | if (server == NULL) |
3979877e SF |
77 | return; |
78 | ||
b6b38f70 | 79 | cERROR(1, "Dump pending requests:"); |
3979877e SF |
80 | spin_lock(&GlobalMid_Lock); |
81 | list_for_each(tmp, &server->pending_mid_q) { | |
82 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); | |
7c9421e1 PS |
83 | cERROR(1, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu", |
84 | mid_entry->mid_state, | |
85 | le16_to_cpu(mid_entry->command), | |
ad8b15f0 | 86 | mid_entry->pid, |
2b84a36c | 87 | mid_entry->callback_data, |
b6b38f70 | 88 | mid_entry->mid); |
3979877e | 89 | #ifdef CONFIG_CIFS_STATS2 |
b6b38f70 | 90 | cERROR(1, "IsLarge: %d buf: %p time rcv: %ld now: %ld", |
7c9421e1 | 91 | mid_entry->large_buf, |
ad8b15f0 SF |
92 | mid_entry->resp_buf, |
93 | mid_entry->when_received, | |
b6b38f70 | 94 | jiffies); |
3979877e | 95 | #endif /* STATS2 */ |
b6b38f70 JP |
96 | cERROR(1, "IsMult: %d IsEnd: %d", mid_entry->multiRsp, |
97 | mid_entry->multiEnd); | |
ad8b15f0 SF |
98 | if (mid_entry->resp_buf) { |
99 | cifs_dump_detail(mid_entry->resp_buf); | |
100 | cifs_dump_mem("existing buf: ", | |
101 | mid_entry->resp_buf, 62); | |
3979877e SF |
102 | } |
103 | } | |
104 | spin_unlock(&GlobalMid_Lock); | |
105 | } | |
106 | #endif /* CONFIG_CIFS_DEBUG2 */ | |
107 | ||
1da177e4 | 108 | #ifdef CONFIG_PROC_FS |
f984c7b9 | 109 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 110 | { |
f1987b44 | 111 | struct list_head *tmp1, *tmp2, *tmp3; |
ffdd6e4d | 112 | struct mid_q_entry *mid_entry; |
14fbf50d | 113 | struct TCP_Server_Info *server; |
96daf2b0 SF |
114 | struct cifs_ses *ses; |
115 | struct cifs_tcon *tcon; | |
f1987b44 JL |
116 | int i, j; |
117 | __u32 dev_type; | |
1da177e4 | 118 | |
f984c7b9 | 119 | seq_puts(m, |
1da177e4 LT |
120 | "Display Internal CIFS Data Structures for Debugging\n" |
121 | "---------------------------------------------------\n"); | |
f984c7b9 | 122 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 123 | seq_printf(m, "Features:"); |
f579903e | 124 | #ifdef CONFIG_CIFS_DFS_UPCALL |
ca40b714 | 125 | seq_printf(m, " dfs"); |
f579903e SJ |
126 | #endif |
127 | #ifdef CONFIG_CIFS_FSCACHE | |
ca40b714 | 128 | seq_printf(m, " fscache"); |
f579903e SJ |
129 | #endif |
130 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
ca40b714 | 131 | seq_printf(m, " lanman"); |
f579903e SJ |
132 | #endif |
133 | #ifdef CONFIG_CIFS_POSIX | |
ca40b714 | 134 | seq_printf(m, " posix"); |
f579903e SJ |
135 | #endif |
136 | #ifdef CONFIG_CIFS_UPCALL | |
ca40b714 | 137 | seq_printf(m, " spnego"); |
f579903e SJ |
138 | #endif |
139 | #ifdef CONFIG_CIFS_XATTR | |
ca40b714 JL |
140 | seq_printf(m, " xattr"); |
141 | #endif | |
142 | #ifdef CONFIG_CIFS_ACL | |
143 | seq_printf(m, " acl"); | |
f579903e SJ |
144 | #endif |
145 | seq_putc(m, '\n'); | |
f984c7b9 AD |
146 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
147 | seq_printf(m, "Servers:"); | |
1da177e4 LT |
148 | |
149 | i = 0; | |
3f9bcca7 | 150 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
151 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
152 | server = list_entry(tmp1, struct TCP_Server_Info, | |
14fbf50d | 153 | tcp_ses_list); |
1da177e4 | 154 | i++; |
14fbf50d | 155 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 156 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d JL |
157 | smb_ses_list); |
158 | if ((ses->serverDomain == NULL) || | |
159 | (ses->serverOS == NULL) || | |
160 | (ses->serverNOS == NULL)) { | |
f1987b44 JL |
161 | seq_printf(m, "\n%d) entry for %s not fully " |
162 | "displayed\n\t", i, ses->serverName); | |
14fbf50d JL |
163 | } else { |
164 | seq_printf(m, | |
f1987b44 JL |
165 | "\n%d) Name: %s Domain: %s Uses: %d OS:" |
166 | " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
221601c3 | 167 | " session status: %d\t", |
b8643e1b | 168 | i, ses->serverName, ses->serverDomain, |
14fbf50d | 169 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 170 | ses->capabilities, ses->status); |
14fbf50d | 171 | } |
f984c7b9 | 172 | seq_printf(m, "TCP status: %d\n\tLocal Users To " |
14fbf50d JL |
173 | "Server: %d SecMode: 0x%x Req On Wire: %d", |
174 | server->tcpStatus, server->srv_count, | |
fc40f9cf | 175 | server->sec_mode, in_flight(server)); |
131afd0b SF |
176 | |
177 | #ifdef CONFIG_CIFS_STATS2 | |
f984c7b9 | 178 | seq_printf(m, " In Send: %d In MaxReq Wait: %d", |
789e6661 | 179 | atomic_read(&server->in_send), |
14fbf50d | 180 | atomic_read(&server->num_waiters)); |
131afd0b SF |
181 | #endif |
182 | ||
f1987b44 JL |
183 | seq_puts(m, "\n\tShares:"); |
184 | j = 0; | |
185 | list_for_each(tmp3, &ses->tcon_list) { | |
96daf2b0 | 186 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
187 | 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"); | |
1da177e4 LT |
215 | |
216 | spin_lock(&GlobalMid_Lock); | |
14fbf50d | 217 | list_for_each(tmp3, &server->pending_mid_q) { |
f1987b44 | 218 | mid_entry = list_entry(tmp3, struct mid_q_entry, |
1da177e4 | 219 | qhead); |
f1987b44 | 220 | seq_printf(m, "\tState: %d com: %d pid:" |
7c9421e1 PS |
221 | " %d cbdata: %p mid %llu\n", |
222 | mid_entry->mid_state, | |
223 | le16_to_cpu(mid_entry->command), | |
224 | mid_entry->pid, | |
225 | mid_entry->callback_data, | |
226 | mid_entry->mid); | |
1da177e4 | 227 | } |
221601c3 | 228 | spin_unlock(&GlobalMid_Lock); |
1da177e4 | 229 | } |
1da177e4 | 230 | } |
3f9bcca7 | 231 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 232 | seq_putc(m, '\n'); |
1da177e4 | 233 | |
1da177e4 | 234 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
235 | return 0; |
236 | } | |
1da177e4 | 237 | |
f984c7b9 AD |
238 | static int cifs_debug_data_proc_open(struct inode *inode, struct file *file) |
239 | { | |
240 | return single_open(file, cifs_debug_data_proc_show, NULL); | |
1da177e4 LT |
241 | } |
242 | ||
f984c7b9 AD |
243 | static 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 | }; | |
1047abc1 | 250 | |
f984c7b9 AD |
251 | #ifdef CONFIG_CIFS_STATS |
252 | static ssize_t cifs_stats_proc_write(struct file *file, | |
253 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 254 | { |
221601c3 SF |
255 | char c; |
256 | int rc; | |
f1987b44 JL |
257 | struct list_head *tmp1, *tmp2, *tmp3; |
258 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
259 | struct cifs_ses *ses; |
260 | struct cifs_tcon *tcon; | |
1047abc1 | 261 | |
221601c3 SF |
262 | rc = get_user(c, buffer); |
263 | if (rc) | |
264 | return rc; | |
1047abc1 | 265 | |
221601c3 | 266 | if (c == '1' || c == 'y' || c == 'Y' || c == '0') { |
4498eed5 SF |
267 | #ifdef CONFIG_CIFS_STATS2 |
268 | atomic_set(&totBufAllocCount, 0); | |
269 | atomic_set(&totSmBufAllocCount, 0); | |
270 | #endif /* CONFIG_CIFS_STATS2 */ | |
3f9bcca7 | 271 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
272 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
273 | server = list_entry(tmp1, struct TCP_Server_Info, | |
274 | tcp_ses_list); | |
c2b3382c | 275 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 276 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 277 | smb_ses_list); |
f1987b44 JL |
278 | list_for_each(tmp3, &ses->tcon_list) { |
279 | tcon = list_entry(tmp3, | |
96daf2b0 | 280 | struct cifs_tcon, |
f1987b44 JL |
281 | 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); | |
65bc98b0 SF |
287 | atomic_set(&tcon->num_posixopens, 0); |
288 | atomic_set(&tcon->num_posixmkdirs, 0); | |
f1987b44 JL |
289 | atomic_set(&tcon->num_closes, 0); |
290 | atomic_set(&tcon->num_deletes, 0); | |
291 | atomic_set(&tcon->num_mkdirs, 0); | |
292 | atomic_set(&tcon->num_rmdirs, 0); | |
293 | atomic_set(&tcon->num_renames, 0); | |
294 | atomic_set(&tcon->num_t2renames, 0); | |
295 | atomic_set(&tcon->num_ffirst, 0); | |
296 | atomic_set(&tcon->num_fnext, 0); | |
297 | atomic_set(&tcon->num_fclose, 0); | |
298 | atomic_set(&tcon->num_hardlinks, 0); | |
299 | atomic_set(&tcon->num_symlinks, 0); | |
300 | atomic_set(&tcon->num_locks, 0); | |
301 | } | |
302 | } | |
1047abc1 | 303 | } |
3f9bcca7 | 304 | spin_unlock(&cifs_tcp_ses_lock); |
1047abc1 SF |
305 | } |
306 | ||
221601c3 | 307 | return count; |
1047abc1 SF |
308 | } |
309 | ||
f984c7b9 | 310 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 311 | { |
f984c7b9 | 312 | int i; |
f1987b44 JL |
313 | struct list_head *tmp1, *tmp2, *tmp3; |
314 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
315 | struct cifs_ses *ses; |
316 | struct cifs_tcon *tcon; | |
1da177e4 | 317 | |
f984c7b9 | 318 | seq_printf(m, |
1da177e4 LT |
319 | "Resources in use\nCIFS Session: %d\n", |
320 | sesInfoAllocCount.counter); | |
f984c7b9 | 321 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 322 | tconInfoAllocCount.counter); |
f984c7b9 | 323 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
324 | bufAllocCount.counter, |
325 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 326 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 327 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 328 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 329 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 330 | atomic_read(&totBufAllocCount), |
221601c3 | 331 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
332 | #endif /* CONFIG_CIFS_STATS2 */ |
333 | ||
8097531a | 334 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 335 | seq_printf(m, |
1da177e4 | 336 | "\n%d session %d share reconnects\n", |
221601c3 | 337 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 338 | |
f984c7b9 | 339 | seq_printf(m, |
1da177e4 | 340 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 341 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
342 | |
343 | i = 0; | |
3f9bcca7 | 344 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
345 | 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) { | |
96daf2b0 | 349 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
350 | smb_ses_list); |
351 | list_for_each(tmp3, &ses->tcon_list) { | |
352 | tcon = list_entry(tmp3, | |
96daf2b0 | 353 | struct cifs_tcon, |
f1987b44 JL |
354 | 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)); | |
b298f223 SF |
368 | seq_printf(m, "\nFlushes: %d", |
369 | atomic_read(&tcon->num_flushes)); | |
f1987b44 JL |
370 | 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)); | |
65bc98b0 | 375 | seq_printf(m, "\nOpens: %d Closes: %d " |
f1987b44 JL |
376 | "Deletes: %d", |
377 | atomic_read(&tcon->num_opens), | |
378 | atomic_read(&tcon->num_closes), | |
379 | atomic_read(&tcon->num_deletes)); | |
65bc98b0 SF |
380 | seq_printf(m, "\nPosix Opens: %d " |
381 | "Posix Mkdirs: %d", | |
382 | atomic_read(&tcon->num_posixopens), | |
383 | atomic_read(&tcon->num_posixmkdirs)); | |
f1987b44 JL |
384 | seq_printf(m, "\nMkdirs: %d Rmdirs: %d", |
385 | atomic_read(&tcon->num_mkdirs), | |
386 | atomic_read(&tcon->num_rmdirs)); | |
387 | seq_printf(m, "\nRenames: %d T2 Renames %d", | |
388 | atomic_read(&tcon->num_renames), | |
389 | atomic_read(&tcon->num_t2renames)); | |
390 | seq_printf(m, "\nFindFirst: %d FNext %d " | |
391 | "FClose %d", | |
392 | atomic_read(&tcon->num_ffirst), | |
393 | atomic_read(&tcon->num_fnext), | |
394 | atomic_read(&tcon->num_fclose)); | |
395 | } | |
396 | } | |
1da177e4 | 397 | } |
3f9bcca7 | 398 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 399 | |
f984c7b9 AD |
400 | seq_putc(m, '\n'); |
401 | return 0; | |
402 | } | |
221601c3 | 403 | |
f984c7b9 AD |
404 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
405 | { | |
406 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 407 | } |
f984c7b9 AD |
408 | |
409 | static 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 | }; | |
90c81e0b | 417 | #endif /* STATS */ |
1da177e4 LT |
418 | |
419 | static struct proc_dir_entry *proc_fs_cifs; | |
f984c7b9 | 420 | static const struct file_operations cifsFYI_proc_fops; |
f984c7b9 AD |
421 | static const struct file_operations cifs_lookup_cache_proc_fops; |
422 | static const struct file_operations traceSMB_proc_fops; | |
423 | static const struct file_operations cifs_multiuser_mount_proc_fops; | |
424 | static const struct file_operations cifs_security_flags_proc_fops; | |
f984c7b9 | 425 | static const struct file_operations cifs_linux_ext_proc_fops; |
1da177e4 LT |
426 | |
427 | void | |
428 | cifs_proc_init(void) | |
429 | { | |
36a5aeb8 | 430 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
431 | if (proc_fs_cifs == NULL) |
432 | return; | |
433 | ||
f984c7b9 | 434 | proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops); |
1da177e4 LT |
435 | |
436 | #ifdef CONFIG_CIFS_STATS | |
f984c7b9 | 437 | proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops); |
90c81e0b | 438 | #endif /* STATS */ |
f984c7b9 AD |
439 | proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops); |
440 | proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops); | |
99b1f5b2 SF |
441 | proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs, |
442 | &cifs_linux_ext_proc_fops); | |
443 | proc_create("MultiuserMount", 0, proc_fs_cifs, | |
444 | &cifs_multiuser_mount_proc_fops); | |
445 | proc_create("SecurityFlags", 0, proc_fs_cifs, | |
446 | &cifs_security_flags_proc_fops); | |
447 | proc_create("LookupCacheEnabled", 0, proc_fs_cifs, | |
448 | &cifs_lookup_cache_proc_fops); | |
1da177e4 LT |
449 | } |
450 | ||
451 | void | |
452 | cifs_proc_clean(void) | |
453 | { | |
454 | if (proc_fs_cifs == NULL) | |
455 | return; | |
456 | ||
457 | remove_proc_entry("DebugData", proc_fs_cifs); | |
458 | remove_proc_entry("cifsFYI", proc_fs_cifs); | |
459 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
460 | #ifdef CONFIG_CIFS_STATS | |
461 | remove_proc_entry("Stats", proc_fs_cifs); | |
462 | #endif | |
463 | remove_proc_entry("MultiuserMount", proc_fs_cifs); | |
221601c3 | 464 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 465 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 466 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
36a5aeb8 | 467 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
468 | } |
469 | ||
f984c7b9 | 470 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 471 | { |
f984c7b9 AD |
472 | seq_printf(m, "%d\n", cifsFYI); |
473 | return 0; | |
474 | } | |
1da177e4 | 475 | |
f984c7b9 AD |
476 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
477 | { | |
478 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 479 | } |
f984c7b9 AD |
480 | |
481 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
482 | size_t count, loff_t *ppos) | |
1da177e4 LT |
483 | { |
484 | char c; | |
485 | int rc; | |
486 | ||
487 | rc = get_user(c, buffer); | |
488 | if (rc) | |
489 | return rc; | |
490 | if (c == '0' || c == 'n' || c == 'N') | |
491 | cifsFYI = 0; | |
492 | else if (c == '1' || c == 'y' || c == 'Y') | |
493 | cifsFYI = 1; | |
221601c3 | 494 | else if ((c > '1') && (c <= '9')) |
1047abc1 | 495 | cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */ |
1da177e4 LT |
496 | |
497 | return count; | |
498 | } | |
499 | ||
f984c7b9 AD |
500 | static const struct file_operations cifsFYI_proc_fops = { |
501 | .owner = THIS_MODULE, | |
502 | .open = cifsFYI_proc_open, | |
503 | .read = seq_read, | |
504 | .llseek = seq_lseek, | |
505 | .release = single_release, | |
506 | .write = cifsFYI_proc_write, | |
507 | }; | |
1da177e4 | 508 | |
f984c7b9 AD |
509 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
510 | { | |
511 | seq_printf(m, "%d\n", linuxExtEnabled); | |
512 | return 0; | |
513 | } | |
1da177e4 | 514 | |
f984c7b9 AD |
515 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
516 | { | |
517 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 518 | } |
f984c7b9 AD |
519 | |
520 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
521 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 522 | { |
221601c3 SF |
523 | char c; |
524 | int rc; | |
525 | ||
526 | rc = get_user(c, buffer); | |
527 | if (rc) | |
528 | return rc; | |
529 | if (c == '0' || c == 'n' || c == 'N') | |
530 | linuxExtEnabled = 0; | |
531 | else if (c == '1' || c == 'y' || c == 'Y') | |
532 | linuxExtEnabled = 1; | |
533 | ||
534 | return count; | |
1da177e4 LT |
535 | } |
536 | ||
f984c7b9 AD |
537 | static const struct file_operations cifs_linux_ext_proc_fops = { |
538 | .owner = THIS_MODULE, | |
539 | .open = cifs_linux_ext_proc_open, | |
540 | .read = seq_read, | |
541 | .llseek = seq_lseek, | |
542 | .release = single_release, | |
543 | .write = cifs_linux_ext_proc_write, | |
544 | }; | |
1da177e4 | 545 | |
f984c7b9 | 546 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 547 | { |
f984c7b9 AD |
548 | seq_printf(m, "%d\n", lookupCacheEnabled); |
549 | return 0; | |
550 | } | |
1da177e4 | 551 | |
f984c7b9 AD |
552 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
553 | { | |
554 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 555 | } |
f984c7b9 AD |
556 | |
557 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
558 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 LT |
559 | { |
560 | char c; | |
561 | int rc; | |
562 | ||
563 | rc = get_user(c, buffer); | |
564 | if (rc) | |
565 | return rc; | |
566 | if (c == '0' || c == 'n' || c == 'N') | |
567 | lookupCacheEnabled = 0; | |
568 | else if (c == '1' || c == 'y' || c == 'Y') | |
569 | lookupCacheEnabled = 1; | |
570 | ||
571 | return count; | |
572 | } | |
1da177e4 | 573 | |
f984c7b9 AD |
574 | static const struct file_operations cifs_lookup_cache_proc_fops = { |
575 | .owner = THIS_MODULE, | |
576 | .open = cifs_lookup_cache_proc_open, | |
577 | .read = seq_read, | |
578 | .llseek = seq_lseek, | |
579 | .release = single_release, | |
580 | .write = cifs_lookup_cache_proc_write, | |
581 | }; | |
1da177e4 | 582 | |
f984c7b9 AD |
583 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
584 | { | |
585 | seq_printf(m, "%d\n", traceSMB); | |
586 | return 0; | |
587 | } | |
1da177e4 | 588 | |
f984c7b9 AD |
589 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
590 | { | |
591 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 592 | } |
f984c7b9 AD |
593 | |
594 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
595 | size_t count, loff_t *ppos) | |
1da177e4 LT |
596 | { |
597 | char c; | |
598 | int rc; | |
599 | ||
600 | rc = get_user(c, buffer); | |
601 | if (rc) | |
602 | return rc; | |
603 | if (c == '0' || c == 'n' || c == 'N') | |
604 | traceSMB = 0; | |
605 | else if (c == '1' || c == 'y' || c == 'Y') | |
606 | traceSMB = 1; | |
607 | ||
608 | return count; | |
609 | } | |
610 | ||
f984c7b9 AD |
611 | static const struct file_operations traceSMB_proc_fops = { |
612 | .owner = THIS_MODULE, | |
613 | .open = traceSMB_proc_open, | |
614 | .read = seq_read, | |
615 | .llseek = seq_lseek, | |
616 | .release = single_release, | |
617 | .write = traceSMB_proc_write, | |
618 | }; | |
1da177e4 | 619 | |
f984c7b9 AD |
620 | static int cifs_multiuser_mount_proc_show(struct seq_file *m, void *v) |
621 | { | |
622 | seq_printf(m, "%d\n", multiuser_mount); | |
623 | return 0; | |
624 | } | |
1da177e4 | 625 | |
99b1f5b2 | 626 | static int cifs_multiuser_mount_proc_open(struct inode *inode, struct file *fh) |
f984c7b9 | 627 | { |
99b1f5b2 | 628 | return single_open(fh, cifs_multiuser_mount_proc_show, NULL); |
1da177e4 | 629 | } |
f984c7b9 AD |
630 | |
631 | static ssize_t cifs_multiuser_mount_proc_write(struct file *file, | |
632 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 LT |
633 | { |
634 | char c; | |
635 | int rc; | |
789b4588 | 636 | static bool warned; |
1da177e4 LT |
637 | |
638 | rc = get_user(c, buffer); | |
639 | if (rc) | |
640 | return rc; | |
641 | if (c == '0' || c == 'n' || c == 'N') | |
642 | multiuser_mount = 0; | |
789b4588 | 643 | else if (c == '1' || c == 'y' || c == 'Y') { |
1da177e4 | 644 | multiuser_mount = 1; |
789b4588 JL |
645 | if (!warned) { |
646 | warned = true; | |
647 | printk(KERN_WARNING "CIFS VFS: The legacy multiuser " | |
648 | "mount code is scheduled to be deprecated in " | |
649 | "3.5. Please switch to using the multiuser " | |
650 | "mount option."); | |
651 | } | |
652 | } | |
1da177e4 LT |
653 | |
654 | return count; | |
655 | } | |
656 | ||
f984c7b9 AD |
657 | static const struct file_operations cifs_multiuser_mount_proc_fops = { |
658 | .owner = THIS_MODULE, | |
659 | .open = cifs_multiuser_mount_proc_open, | |
660 | .read = seq_read, | |
661 | .llseek = seq_lseek, | |
662 | .release = single_release, | |
663 | .write = cifs_multiuser_mount_proc_write, | |
664 | }; | |
1da177e4 | 665 | |
f984c7b9 AD |
666 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
667 | { | |
04912d6a | 668 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
669 | return 0; |
670 | } | |
1da177e4 | 671 | |
f984c7b9 AD |
672 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
673 | { | |
674 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 675 | } |
f984c7b9 AD |
676 | |
677 | static ssize_t cifs_security_flags_proc_write(struct file *file, | |
678 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 679 | { |
bdc4bf6e SF |
680 | unsigned int flags; |
681 | char flags_string[12]; | |
1da177e4 | 682 | char c; |
bdc4bf6e | 683 | |
221601c3 | 684 | if ((count < 1) || (count > 11)) |
3979877e | 685 | return -EINVAL; |
1da177e4 | 686 | |
bdc4bf6e | 687 | memset(flags_string, 0, 12); |
3979877e | 688 | |
221601c3 | 689 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 690 | return -EFAULT; |
3979877e | 691 | |
221601c3 | 692 | if (count < 3) { |
bdc4bf6e SF |
693 | /* single char or single char followed by null */ |
694 | c = flags_string[0]; | |
a013689d | 695 | if (c == '0' || c == 'n' || c == 'N') { |
04912d6a | 696 | global_secflags = CIFSSEC_DEF; /* default */ |
a013689d SF |
697 | return count; |
698 | } else if (c == '1' || c == 'y' || c == 'Y') { | |
04912d6a | 699 | global_secflags = CIFSSEC_MAX; |
a013689d SF |
700 | return count; |
701 | } else if (!isdigit(c)) { | |
b6b38f70 | 702 | cERROR(1, "invalid flag %c", c); |
a013689d SF |
703 | return -EINVAL; |
704 | } | |
bdc4bf6e SF |
705 | } |
706 | /* else we have a number */ | |
707 | ||
708 | flags = simple_strtoul(flags_string, NULL, 0); | |
709 | ||
b6b38f70 | 710 | cFYI(1, "sec flags 0x%x", flags); |
bdc4bf6e | 711 | |
221601c3 | 712 | if (flags <= 0) { |
b6b38f70 | 713 | cERROR(1, "invalid security flags %s", flags_string); |
bdc4bf6e SF |
714 | return -EINVAL; |
715 | } | |
1da177e4 | 716 | |
221601c3 | 717 | if (flags & ~CIFSSEC_MASK) { |
b6b38f70 JP |
718 | cERROR(1, "attempt to set unsupported security flags 0x%x", |
719 | flags & ~CIFSSEC_MASK); | |
bdc4bf6e SF |
720 | return -EINVAL; |
721 | } | |
722 | /* flags look ok - update the global security flags for cifs module */ | |
04912d6a JL |
723 | global_secflags = flags; |
724 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 725 | /* requiring signing implies signing is allowed */ |
04912d6a | 726 | global_secflags |= CIFSSEC_MAY_SIGN; |
b6b38f70 | 727 | cFYI(1, "packet signing now required"); |
04912d6a | 728 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
b6b38f70 | 729 | cFYI(1, "packet signing disabled"); |
762e5ab7 SF |
730 | } |
731 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
732 | return count; |
733 | } | |
f984c7b9 AD |
734 | |
735 | static const struct file_operations cifs_security_flags_proc_fops = { | |
736 | .owner = THIS_MODULE, | |
737 | .open = cifs_security_flags_proc_open, | |
738 | .read = seq_read, | |
739 | .llseek = seq_lseek, | |
740 | .release = single_release, | |
741 | .write = cifs_security_flags_proc_write, | |
742 | }; | |
90c81e0b | 743 | #else |
e086fcea | 744 | inline void cifs_proc_init(void) |
90c81e0b SF |
745 | { |
746 | } | |
747 | ||
e086fcea | 748 | inline void cifs_proc_clean(void) |
90c81e0b SF |
749 | { |
750 | } | |
751 | #endif /* PROC_FS */ |