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 | { |
b6b38f70 | 63 | cERROR(1, "Cmd: %d Err: 0x%x Flags: 0x%x Flgs2: 0x%x Mid: %d Pid: %d", |
3979877e | 64 | smb->Command, smb->Status.CifsError, |
b6b38f70 | 65 | smb->Flags, smb->Flags2, smb->Mid, smb->Pid); |
820a803f | 66 | cERROR(1, "smb buf %p len %d", smb, smbCalcSize(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 | ||
b6b38f70 | 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); | |
2b84a36c | 82 | cERROR(1, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %d", |
ad8b15f0 SF |
83 | mid_entry->midState, |
84 | (int)mid_entry->command, | |
85 | mid_entry->pid, | |
2b84a36c | 86 | mid_entry->callback_data, |
b6b38f70 | 87 | mid_entry->mid); |
3979877e | 88 | #ifdef CONFIG_CIFS_STATS2 |
b6b38f70 | 89 | cERROR(1, "IsLarge: %d buf: %p time rcv: %ld now: %ld", |
ad8b15f0 SF |
90 | mid_entry->largeBuf, |
91 | mid_entry->resp_buf, | |
92 | mid_entry->when_received, | |
b6b38f70 | 93 | jiffies); |
3979877e | 94 | #endif /* STATS2 */ |
b6b38f70 JP |
95 | cERROR(1, "IsMult: %d IsEnd: %d", mid_entry->multiRsp, |
96 | mid_entry->multiEnd); | |
ad8b15f0 SF |
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); | |
3979877e SF |
101 | } |
102 | } | |
103 | spin_unlock(&GlobalMid_Lock); | |
104 | } | |
105 | #endif /* CONFIG_CIFS_DEBUG2 */ | |
106 | ||
1da177e4 | 107 | #ifdef CONFIG_PROC_FS |
f984c7b9 | 108 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 109 | { |
f1987b44 | 110 | struct list_head *tmp1, *tmp2, *tmp3; |
ffdd6e4d | 111 | struct mid_q_entry *mid_entry; |
14fbf50d | 112 | struct TCP_Server_Info *server; |
96daf2b0 SF |
113 | struct cifs_ses *ses; |
114 | struct cifs_tcon *tcon; | |
f1987b44 JL |
115 | int i, j; |
116 | __u32 dev_type; | |
1da177e4 | 117 | |
f984c7b9 | 118 | seq_puts(m, |
1da177e4 LT |
119 | "Display Internal CIFS Data Structures for Debugging\n" |
120 | "---------------------------------------------------\n"); | |
f984c7b9 | 121 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 122 | seq_printf(m, "Features:"); |
f579903e | 123 | #ifdef CONFIG_CIFS_DFS_UPCALL |
ca40b714 | 124 | seq_printf(m, " dfs"); |
f579903e SJ |
125 | #endif |
126 | #ifdef CONFIG_CIFS_FSCACHE | |
ca40b714 | 127 | seq_printf(m, " fscache"); |
f579903e SJ |
128 | #endif |
129 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
ca40b714 | 130 | seq_printf(m, " lanman"); |
f579903e SJ |
131 | #endif |
132 | #ifdef CONFIG_CIFS_POSIX | |
ca40b714 | 133 | seq_printf(m, " posix"); |
f579903e SJ |
134 | #endif |
135 | #ifdef CONFIG_CIFS_UPCALL | |
ca40b714 | 136 | seq_printf(m, " spnego"); |
f579903e SJ |
137 | #endif |
138 | #ifdef CONFIG_CIFS_XATTR | |
ca40b714 JL |
139 | seq_printf(m, " xattr"); |
140 | #endif | |
141 | #ifdef CONFIG_CIFS_ACL | |
142 | seq_printf(m, " acl"); | |
f579903e SJ |
143 | #endif |
144 | seq_putc(m, '\n'); | |
f984c7b9 AD |
145 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
146 | seq_printf(m, "Servers:"); | |
1da177e4 LT |
147 | |
148 | i = 0; | |
3f9bcca7 | 149 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
150 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
151 | server = list_entry(tmp1, struct TCP_Server_Info, | |
14fbf50d | 152 | tcp_ses_list); |
1da177e4 | 153 | i++; |
14fbf50d | 154 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 155 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d JL |
156 | smb_ses_list); |
157 | if ((ses->serverDomain == NULL) || | |
158 | (ses->serverOS == NULL) || | |
159 | (ses->serverNOS == NULL)) { | |
f1987b44 JL |
160 | seq_printf(m, "\n%d) entry for %s not fully " |
161 | "displayed\n\t", i, ses->serverName); | |
14fbf50d JL |
162 | } else { |
163 | seq_printf(m, | |
f1987b44 JL |
164 | "\n%d) Name: %s Domain: %s Uses: %d OS:" |
165 | " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
221601c3 | 166 | " session status: %d\t", |
b8643e1b | 167 | i, ses->serverName, ses->serverDomain, |
14fbf50d | 168 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 169 | ses->capabilities, ses->status); |
14fbf50d | 170 | } |
f984c7b9 | 171 | seq_printf(m, "TCP status: %d\n\tLocal Users To " |
14fbf50d JL |
172 | "Server: %d SecMode: 0x%x Req On Wire: %d", |
173 | server->tcpStatus, server->srv_count, | |
fc40f9cf | 174 | server->sec_mode, in_flight(server)); |
131afd0b SF |
175 | |
176 | #ifdef CONFIG_CIFS_STATS2 | |
f984c7b9 | 177 | seq_printf(m, " In Send: %d In MaxReq Wait: %d", |
789e6661 | 178 | atomic_read(&server->in_send), |
14fbf50d | 179 | atomic_read(&server->num_waiters)); |
131afd0b SF |
180 | #endif |
181 | ||
f1987b44 JL |
182 | seq_puts(m, "\n\tShares:"); |
183 | j = 0; | |
184 | list_for_each(tmp3, &ses->tcon_list) { | |
96daf2b0 | 185 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
186 | tcon_list); |
187 | ++j; | |
188 | dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType); | |
189 | seq_printf(m, "\n\t%d) %s Mounts: %d ", j, | |
190 | tcon->treeName, tcon->tc_count); | |
191 | if (tcon->nativeFileSystem) { | |
192 | seq_printf(m, "Type: %s ", | |
193 | tcon->nativeFileSystem); | |
194 | } | |
195 | seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x" | |
196 | "\nPathComponentMax: %d Status: 0x%d", | |
197 | le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics), | |
198 | le32_to_cpu(tcon->fsAttrInfo.Attributes), | |
199 | le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength), | |
200 | tcon->tidStatus); | |
201 | if (dev_type == FILE_DEVICE_DISK) | |
202 | seq_puts(m, " type: DISK "); | |
203 | else if (dev_type == FILE_DEVICE_CD_ROM) | |
204 | seq_puts(m, " type: CDROM "); | |
205 | else | |
206 | seq_printf(m, " type: %d ", dev_type); | |
207 | ||
208 | if (tcon->need_reconnect) | |
209 | seq_puts(m, "\tDISCONNECTED "); | |
210 | seq_putc(m, '\n'); | |
211 | } | |
212 | ||
213 | seq_puts(m, "\n\tMIDs:\n"); | |
1da177e4 LT |
214 | |
215 | spin_lock(&GlobalMid_Lock); | |
14fbf50d | 216 | list_for_each(tmp3, &server->pending_mid_q) { |
f1987b44 | 217 | mid_entry = list_entry(tmp3, struct mid_q_entry, |
1da177e4 | 218 | qhead); |
f1987b44 | 219 | seq_printf(m, "\tState: %d com: %d pid:" |
2b84a36c | 220 | " %d cbdata: %p mid %d\n", |
ad8b15f0 SF |
221 | mid_entry->midState, |
222 | (int)mid_entry->command, | |
223 | mid_entry->pid, | |
2b84a36c | 224 | mid_entry->callback_data, |
ad8b15f0 | 225 | mid_entry->mid); |
1da177e4 | 226 | } |
221601c3 | 227 | spin_unlock(&GlobalMid_Lock); |
1da177e4 | 228 | } |
1da177e4 | 229 | } |
3f9bcca7 | 230 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 231 | seq_putc(m, '\n'); |
1da177e4 | 232 | |
1da177e4 | 233 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
234 | return 0; |
235 | } | |
1da177e4 | 236 | |
f984c7b9 AD |
237 | static int cifs_debug_data_proc_open(struct inode *inode, struct file *file) |
238 | { | |
239 | return single_open(file, cifs_debug_data_proc_show, NULL); | |
1da177e4 LT |
240 | } |
241 | ||
f984c7b9 AD |
242 | static const struct file_operations cifs_debug_data_proc_fops = { |
243 | .owner = THIS_MODULE, | |
244 | .open = cifs_debug_data_proc_open, | |
245 | .read = seq_read, | |
246 | .llseek = seq_lseek, | |
247 | .release = single_release, | |
248 | }; | |
1047abc1 | 249 | |
f984c7b9 AD |
250 | #ifdef CONFIG_CIFS_STATS |
251 | static ssize_t cifs_stats_proc_write(struct file *file, | |
252 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 253 | { |
221601c3 SF |
254 | char c; |
255 | int rc; | |
f1987b44 JL |
256 | struct list_head *tmp1, *tmp2, *tmp3; |
257 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
258 | struct cifs_ses *ses; |
259 | struct cifs_tcon *tcon; | |
1047abc1 | 260 | |
221601c3 SF |
261 | rc = get_user(c, buffer); |
262 | if (rc) | |
263 | return rc; | |
1047abc1 | 264 | |
221601c3 | 265 | if (c == '1' || c == 'y' || c == 'Y' || c == '0') { |
4498eed5 SF |
266 | #ifdef CONFIG_CIFS_STATS2 |
267 | atomic_set(&totBufAllocCount, 0); | |
268 | atomic_set(&totSmBufAllocCount, 0); | |
269 | #endif /* CONFIG_CIFS_STATS2 */ | |
3f9bcca7 | 270 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
271 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
272 | server = list_entry(tmp1, struct TCP_Server_Info, | |
273 | tcp_ses_list); | |
c2b3382c | 274 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 275 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 276 | smb_ses_list); |
f1987b44 JL |
277 | list_for_each(tmp3, &ses->tcon_list) { |
278 | tcon = list_entry(tmp3, | |
96daf2b0 | 279 | struct cifs_tcon, |
f1987b44 JL |
280 | tcon_list); |
281 | atomic_set(&tcon->num_smbs_sent, 0); | |
282 | atomic_set(&tcon->num_writes, 0); | |
283 | atomic_set(&tcon->num_reads, 0); | |
284 | atomic_set(&tcon->num_oplock_brks, 0); | |
285 | atomic_set(&tcon->num_opens, 0); | |
65bc98b0 SF |
286 | atomic_set(&tcon->num_posixopens, 0); |
287 | atomic_set(&tcon->num_posixmkdirs, 0); | |
f1987b44 JL |
288 | atomic_set(&tcon->num_closes, 0); |
289 | atomic_set(&tcon->num_deletes, 0); | |
290 | atomic_set(&tcon->num_mkdirs, 0); | |
291 | atomic_set(&tcon->num_rmdirs, 0); | |
292 | atomic_set(&tcon->num_renames, 0); | |
293 | atomic_set(&tcon->num_t2renames, 0); | |
294 | atomic_set(&tcon->num_ffirst, 0); | |
295 | atomic_set(&tcon->num_fnext, 0); | |
296 | atomic_set(&tcon->num_fclose, 0); | |
297 | atomic_set(&tcon->num_hardlinks, 0); | |
298 | atomic_set(&tcon->num_symlinks, 0); | |
299 | atomic_set(&tcon->num_locks, 0); | |
300 | } | |
301 | } | |
1047abc1 | 302 | } |
3f9bcca7 | 303 | spin_unlock(&cifs_tcp_ses_lock); |
1047abc1 SF |
304 | } |
305 | ||
221601c3 | 306 | return count; |
1047abc1 SF |
307 | } |
308 | ||
f984c7b9 | 309 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 310 | { |
f984c7b9 | 311 | int i; |
f1987b44 JL |
312 | struct list_head *tmp1, *tmp2, *tmp3; |
313 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
314 | struct cifs_ses *ses; |
315 | struct cifs_tcon *tcon; | |
1da177e4 | 316 | |
f984c7b9 | 317 | seq_printf(m, |
1da177e4 LT |
318 | "Resources in use\nCIFS Session: %d\n", |
319 | sesInfoAllocCount.counter); | |
f984c7b9 | 320 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 321 | tconInfoAllocCount.counter); |
f984c7b9 | 322 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
323 | bufAllocCount.counter, |
324 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 325 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 326 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 327 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 328 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 329 | atomic_read(&totBufAllocCount), |
221601c3 | 330 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
331 | #endif /* CONFIG_CIFS_STATS2 */ |
332 | ||
8097531a | 333 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 334 | seq_printf(m, |
1da177e4 | 335 | "\n%d session %d share reconnects\n", |
221601c3 | 336 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 337 | |
f984c7b9 | 338 | seq_printf(m, |
1da177e4 | 339 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 340 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
341 | |
342 | i = 0; | |
3f9bcca7 | 343 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
344 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
345 | server = list_entry(tmp1, struct TCP_Server_Info, | |
346 | tcp_ses_list); | |
347 | list_for_each(tmp2, &server->smb_ses_list) { | |
96daf2b0 | 348 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
349 | smb_ses_list); |
350 | list_for_each(tmp3, &ses->tcon_list) { | |
351 | tcon = list_entry(tmp3, | |
96daf2b0 | 352 | struct cifs_tcon, |
f1987b44 JL |
353 | tcon_list); |
354 | i++; | |
355 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
356 | if (tcon->need_reconnect) | |
357 | seq_puts(m, "\tDISCONNECTED "); | |
358 | seq_printf(m, "\nSMBs: %d Oplock Breaks: %d", | |
359 | atomic_read(&tcon->num_smbs_sent), | |
360 | atomic_read(&tcon->num_oplock_brks)); | |
361 | seq_printf(m, "\nReads: %d Bytes: %lld", | |
362 | atomic_read(&tcon->num_reads), | |
363 | (long long)(tcon->bytes_read)); | |
364 | seq_printf(m, "\nWrites: %d Bytes: %lld", | |
365 | atomic_read(&tcon->num_writes), | |
366 | (long long)(tcon->bytes_written)); | |
b298f223 SF |
367 | seq_printf(m, "\nFlushes: %d", |
368 | atomic_read(&tcon->num_flushes)); | |
f1987b44 JL |
369 | seq_printf(m, "\nLocks: %d HardLinks: %d " |
370 | "Symlinks: %d", | |
371 | atomic_read(&tcon->num_locks), | |
372 | atomic_read(&tcon->num_hardlinks), | |
373 | atomic_read(&tcon->num_symlinks)); | |
65bc98b0 | 374 | seq_printf(m, "\nOpens: %d Closes: %d " |
f1987b44 JL |
375 | "Deletes: %d", |
376 | atomic_read(&tcon->num_opens), | |
377 | atomic_read(&tcon->num_closes), | |
378 | atomic_read(&tcon->num_deletes)); | |
65bc98b0 SF |
379 | seq_printf(m, "\nPosix Opens: %d " |
380 | "Posix Mkdirs: %d", | |
381 | atomic_read(&tcon->num_posixopens), | |
382 | atomic_read(&tcon->num_posixmkdirs)); | |
f1987b44 JL |
383 | seq_printf(m, "\nMkdirs: %d Rmdirs: %d", |
384 | atomic_read(&tcon->num_mkdirs), | |
385 | atomic_read(&tcon->num_rmdirs)); | |
386 | seq_printf(m, "\nRenames: %d T2 Renames %d", | |
387 | atomic_read(&tcon->num_renames), | |
388 | atomic_read(&tcon->num_t2renames)); | |
389 | seq_printf(m, "\nFindFirst: %d FNext %d " | |
390 | "FClose %d", | |
391 | atomic_read(&tcon->num_ffirst), | |
392 | atomic_read(&tcon->num_fnext), | |
393 | atomic_read(&tcon->num_fclose)); | |
394 | } | |
395 | } | |
1da177e4 | 396 | } |
3f9bcca7 | 397 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 398 | |
f984c7b9 AD |
399 | seq_putc(m, '\n'); |
400 | return 0; | |
401 | } | |
221601c3 | 402 | |
f984c7b9 AD |
403 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
404 | { | |
405 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 406 | } |
f984c7b9 AD |
407 | |
408 | static const struct file_operations cifs_stats_proc_fops = { | |
409 | .owner = THIS_MODULE, | |
410 | .open = cifs_stats_proc_open, | |
411 | .read = seq_read, | |
412 | .llseek = seq_lseek, | |
413 | .release = single_release, | |
414 | .write = cifs_stats_proc_write, | |
415 | }; | |
90c81e0b | 416 | #endif /* STATS */ |
1da177e4 LT |
417 | |
418 | static struct proc_dir_entry *proc_fs_cifs; | |
f984c7b9 AD |
419 | static const struct file_operations cifsFYI_proc_fops; |
420 | static const struct file_operations cifs_oplock_proc_fops; | |
421 | static const struct file_operations cifs_lookup_cache_proc_fops; | |
422 | static const struct file_operations traceSMB_proc_fops; | |
423 | static const struct file_operations cifs_multiuser_mount_proc_fops; | |
424 | static const struct file_operations cifs_security_flags_proc_fops; | |
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); | |
441 | proc_create("OplockEnabled", 0, proc_fs_cifs, &cifs_oplock_proc_fops); | |
99b1f5b2 SF |
442 | proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs, |
443 | &cifs_linux_ext_proc_fops); | |
444 | proc_create("MultiuserMount", 0, proc_fs_cifs, | |
445 | &cifs_multiuser_mount_proc_fops); | |
446 | proc_create("SecurityFlags", 0, proc_fs_cifs, | |
447 | &cifs_security_flags_proc_fops); | |
448 | proc_create("LookupCacheEnabled", 0, proc_fs_cifs, | |
449 | &cifs_lookup_cache_proc_fops); | |
1da177e4 LT |
450 | } |
451 | ||
452 | void | |
453 | cifs_proc_clean(void) | |
454 | { | |
455 | if (proc_fs_cifs == NULL) | |
456 | return; | |
457 | ||
458 | remove_proc_entry("DebugData", proc_fs_cifs); | |
459 | remove_proc_entry("cifsFYI", proc_fs_cifs); | |
460 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
461 | #ifdef CONFIG_CIFS_STATS | |
462 | remove_proc_entry("Stats", proc_fs_cifs); | |
463 | #endif | |
464 | remove_proc_entry("MultiuserMount", proc_fs_cifs); | |
465 | remove_proc_entry("OplockEnabled", proc_fs_cifs); | |
221601c3 | 466 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 467 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 468 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
36a5aeb8 | 469 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
470 | } |
471 | ||
f984c7b9 | 472 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 473 | { |
f984c7b9 AD |
474 | seq_printf(m, "%d\n", cifsFYI); |
475 | return 0; | |
476 | } | |
1da177e4 | 477 | |
f984c7b9 AD |
478 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
479 | { | |
480 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 481 | } |
f984c7b9 AD |
482 | |
483 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
484 | size_t count, loff_t *ppos) | |
1da177e4 LT |
485 | { |
486 | char c; | |
487 | int rc; | |
488 | ||
489 | rc = get_user(c, buffer); | |
490 | if (rc) | |
491 | return rc; | |
492 | if (c == '0' || c == 'n' || c == 'N') | |
493 | cifsFYI = 0; | |
494 | else if (c == '1' || c == 'y' || c == 'Y') | |
495 | cifsFYI = 1; | |
221601c3 | 496 | else if ((c > '1') && (c <= '9')) |
1047abc1 | 497 | cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */ |
1da177e4 LT |
498 | |
499 | return count; | |
500 | } | |
501 | ||
f984c7b9 AD |
502 | static const struct file_operations cifsFYI_proc_fops = { |
503 | .owner = THIS_MODULE, | |
504 | .open = cifsFYI_proc_open, | |
505 | .read = seq_read, | |
506 | .llseek = seq_lseek, | |
507 | .release = single_release, | |
508 | .write = cifsFYI_proc_write, | |
509 | }; | |
1da177e4 | 510 | |
f984c7b9 AD |
511 | static int cifs_oplock_proc_show(struct seq_file *m, void *v) |
512 | { | |
e7504734 | 513 | seq_printf(m, "%d\n", enable_oplocks); |
f984c7b9 AD |
514 | return 0; |
515 | } | |
1da177e4 | 516 | |
f984c7b9 AD |
517 | static int cifs_oplock_proc_open(struct inode *inode, struct file *file) |
518 | { | |
519 | return single_open(file, cifs_oplock_proc_show, NULL); | |
1da177e4 | 520 | } |
f984c7b9 AD |
521 | |
522 | static ssize_t cifs_oplock_proc_write(struct file *file, | |
523 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 LT |
524 | { |
525 | char c; | |
526 | int rc; | |
527 | ||
8bc4392a SJ |
528 | printk(KERN_WARNING "CIFS: The /proc/fs/cifs/OplockEnabled interface " |
529 | "will be removed in kernel version 3.4. Please migrate to " | |
530 | "using the 'enable_oplocks' module parameter in cifs.ko.\n"); | |
1da177e4 LT |
531 | rc = get_user(c, buffer); |
532 | if (rc) | |
533 | return rc; | |
534 | if (c == '0' || c == 'n' || c == 'N') | |
e7504734 | 535 | enable_oplocks = false; |
1da177e4 | 536 | else if (c == '1' || c == 'y' || c == 'Y') |
e7504734 | 537 | enable_oplocks = true; |
1da177e4 LT |
538 | |
539 | return count; | |
540 | } | |
541 | ||
f984c7b9 AD |
542 | static const struct file_operations cifs_oplock_proc_fops = { |
543 | .owner = THIS_MODULE, | |
544 | .open = cifs_oplock_proc_open, | |
545 | .read = seq_read, | |
546 | .llseek = seq_lseek, | |
547 | .release = single_release, | |
548 | .write = cifs_oplock_proc_write, | |
549 | }; | |
1da177e4 | 550 | |
f984c7b9 AD |
551 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
552 | { | |
553 | seq_printf(m, "%d\n", linuxExtEnabled); | |
554 | return 0; | |
555 | } | |
1da177e4 | 556 | |
f984c7b9 AD |
557 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
558 | { | |
559 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 560 | } |
f984c7b9 AD |
561 | |
562 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
563 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 564 | { |
221601c3 SF |
565 | char c; |
566 | int rc; | |
567 | ||
568 | rc = get_user(c, buffer); | |
569 | if (rc) | |
570 | return rc; | |
571 | if (c == '0' || c == 'n' || c == 'N') | |
572 | linuxExtEnabled = 0; | |
573 | else if (c == '1' || c == 'y' || c == 'Y') | |
574 | linuxExtEnabled = 1; | |
575 | ||
576 | return count; | |
1da177e4 LT |
577 | } |
578 | ||
f984c7b9 AD |
579 | static const struct file_operations cifs_linux_ext_proc_fops = { |
580 | .owner = THIS_MODULE, | |
581 | .open = cifs_linux_ext_proc_open, | |
582 | .read = seq_read, | |
583 | .llseek = seq_lseek, | |
584 | .release = single_release, | |
585 | .write = cifs_linux_ext_proc_write, | |
586 | }; | |
1da177e4 | 587 | |
f984c7b9 | 588 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 589 | { |
f984c7b9 AD |
590 | seq_printf(m, "%d\n", lookupCacheEnabled); |
591 | return 0; | |
592 | } | |
1da177e4 | 593 | |
f984c7b9 AD |
594 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
595 | { | |
596 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 597 | } |
f984c7b9 AD |
598 | |
599 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
600 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 LT |
601 | { |
602 | char c; | |
603 | int rc; | |
604 | ||
605 | rc = get_user(c, buffer); | |
606 | if (rc) | |
607 | return rc; | |
608 | if (c == '0' || c == 'n' || c == 'N') | |
609 | lookupCacheEnabled = 0; | |
610 | else if (c == '1' || c == 'y' || c == 'Y') | |
611 | lookupCacheEnabled = 1; | |
612 | ||
613 | return count; | |
614 | } | |
1da177e4 | 615 | |
f984c7b9 AD |
616 | static const struct file_operations cifs_lookup_cache_proc_fops = { |
617 | .owner = THIS_MODULE, | |
618 | .open = cifs_lookup_cache_proc_open, | |
619 | .read = seq_read, | |
620 | .llseek = seq_lseek, | |
621 | .release = single_release, | |
622 | .write = cifs_lookup_cache_proc_write, | |
623 | }; | |
1da177e4 | 624 | |
f984c7b9 AD |
625 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
626 | { | |
627 | seq_printf(m, "%d\n", traceSMB); | |
628 | return 0; | |
629 | } | |
1da177e4 | 630 | |
f984c7b9 AD |
631 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
632 | { | |
633 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 634 | } |
f984c7b9 AD |
635 | |
636 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
637 | size_t count, loff_t *ppos) | |
1da177e4 LT |
638 | { |
639 | char c; | |
640 | int rc; | |
641 | ||
642 | rc = get_user(c, buffer); | |
643 | if (rc) | |
644 | return rc; | |
645 | if (c == '0' || c == 'n' || c == 'N') | |
646 | traceSMB = 0; | |
647 | else if (c == '1' || c == 'y' || c == 'Y') | |
648 | traceSMB = 1; | |
649 | ||
650 | return count; | |
651 | } | |
652 | ||
f984c7b9 AD |
653 | static const struct file_operations traceSMB_proc_fops = { |
654 | .owner = THIS_MODULE, | |
655 | .open = traceSMB_proc_open, | |
656 | .read = seq_read, | |
657 | .llseek = seq_lseek, | |
658 | .release = single_release, | |
659 | .write = traceSMB_proc_write, | |
660 | }; | |
1da177e4 | 661 | |
f984c7b9 AD |
662 | static int cifs_multiuser_mount_proc_show(struct seq_file *m, void *v) |
663 | { | |
664 | seq_printf(m, "%d\n", multiuser_mount); | |
665 | return 0; | |
666 | } | |
1da177e4 | 667 | |
99b1f5b2 | 668 | static int cifs_multiuser_mount_proc_open(struct inode *inode, struct file *fh) |
f984c7b9 | 669 | { |
99b1f5b2 | 670 | return single_open(fh, cifs_multiuser_mount_proc_show, NULL); |
1da177e4 | 671 | } |
f984c7b9 AD |
672 | |
673 | static ssize_t cifs_multiuser_mount_proc_write(struct file *file, | |
674 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 LT |
675 | { |
676 | char c; | |
677 | int rc; | |
789b4588 | 678 | static bool warned; |
1da177e4 LT |
679 | |
680 | rc = get_user(c, buffer); | |
681 | if (rc) | |
682 | return rc; | |
683 | if (c == '0' || c == 'n' || c == 'N') | |
684 | multiuser_mount = 0; | |
789b4588 | 685 | else if (c == '1' || c == 'y' || c == 'Y') { |
1da177e4 | 686 | multiuser_mount = 1; |
789b4588 JL |
687 | if (!warned) { |
688 | warned = true; | |
689 | printk(KERN_WARNING "CIFS VFS: The legacy multiuser " | |
690 | "mount code is scheduled to be deprecated in " | |
691 | "3.5. Please switch to using the multiuser " | |
692 | "mount option."); | |
693 | } | |
694 | } | |
1da177e4 LT |
695 | |
696 | return count; | |
697 | } | |
698 | ||
f984c7b9 AD |
699 | static const struct file_operations cifs_multiuser_mount_proc_fops = { |
700 | .owner = THIS_MODULE, | |
701 | .open = cifs_multiuser_mount_proc_open, | |
702 | .read = seq_read, | |
703 | .llseek = seq_lseek, | |
704 | .release = single_release, | |
705 | .write = cifs_multiuser_mount_proc_write, | |
706 | }; | |
1da177e4 | 707 | |
f984c7b9 AD |
708 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
709 | { | |
04912d6a | 710 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
711 | return 0; |
712 | } | |
1da177e4 | 713 | |
f984c7b9 AD |
714 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
715 | { | |
716 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 717 | } |
f984c7b9 AD |
718 | |
719 | static ssize_t cifs_security_flags_proc_write(struct file *file, | |
720 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 721 | { |
bdc4bf6e SF |
722 | unsigned int flags; |
723 | char flags_string[12]; | |
1da177e4 | 724 | char c; |
bdc4bf6e | 725 | |
221601c3 | 726 | if ((count < 1) || (count > 11)) |
3979877e | 727 | return -EINVAL; |
1da177e4 | 728 | |
bdc4bf6e | 729 | memset(flags_string, 0, 12); |
3979877e | 730 | |
221601c3 | 731 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 732 | return -EFAULT; |
3979877e | 733 | |
221601c3 | 734 | if (count < 3) { |
bdc4bf6e SF |
735 | /* single char or single char followed by null */ |
736 | c = flags_string[0]; | |
a013689d | 737 | if (c == '0' || c == 'n' || c == 'N') { |
04912d6a | 738 | global_secflags = CIFSSEC_DEF; /* default */ |
a013689d SF |
739 | return count; |
740 | } else if (c == '1' || c == 'y' || c == 'Y') { | |
04912d6a | 741 | global_secflags = CIFSSEC_MAX; |
a013689d SF |
742 | return count; |
743 | } else if (!isdigit(c)) { | |
b6b38f70 | 744 | cERROR(1, "invalid flag %c", c); |
a013689d SF |
745 | return -EINVAL; |
746 | } | |
bdc4bf6e SF |
747 | } |
748 | /* else we have a number */ | |
749 | ||
750 | flags = simple_strtoul(flags_string, NULL, 0); | |
751 | ||
b6b38f70 | 752 | cFYI(1, "sec flags 0x%x", flags); |
bdc4bf6e | 753 | |
221601c3 | 754 | if (flags <= 0) { |
b6b38f70 | 755 | cERROR(1, "invalid security flags %s", flags_string); |
bdc4bf6e SF |
756 | return -EINVAL; |
757 | } | |
1da177e4 | 758 | |
221601c3 | 759 | if (flags & ~CIFSSEC_MASK) { |
b6b38f70 JP |
760 | cERROR(1, "attempt to set unsupported security flags 0x%x", |
761 | flags & ~CIFSSEC_MASK); | |
bdc4bf6e SF |
762 | return -EINVAL; |
763 | } | |
764 | /* flags look ok - update the global security flags for cifs module */ | |
04912d6a JL |
765 | global_secflags = flags; |
766 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 767 | /* requiring signing implies signing is allowed */ |
04912d6a | 768 | global_secflags |= CIFSSEC_MAY_SIGN; |
b6b38f70 | 769 | cFYI(1, "packet signing now required"); |
04912d6a | 770 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
b6b38f70 | 771 | cFYI(1, "packet signing disabled"); |
762e5ab7 SF |
772 | } |
773 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
774 | return count; |
775 | } | |
f984c7b9 AD |
776 | |
777 | static const struct file_operations cifs_security_flags_proc_fops = { | |
778 | .owner = THIS_MODULE, | |
779 | .open = cifs_security_flags_proc_open, | |
780 | .read = seq_read, | |
781 | .llseek = seq_lseek, | |
782 | .release = single_release, | |
783 | .write = cifs_security_flags_proc_write, | |
784 | }; | |
90c81e0b | 785 | #else |
e086fcea | 786 | inline void cifs_proc_init(void) |
90c81e0b SF |
787 | { |
788 | } | |
789 | ||
e086fcea | 790 | inline void cifs_proc_clean(void) |
90c81e0b SF |
791 | { |
792 | } | |
793 | #endif /* PROC_FS */ |