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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 | ||
d4e4854f | 60 | void cifs_dump_detail(void *buf) |
3979877e | 61 | { |
8aa26f3e | 62 | #ifdef CONFIG_CIFS_DEBUG2 |
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); |
093b2bda | 68 | cERROR(1, "smb buf %p len %u", smb, smbCalcSize(smb)); |
8aa26f3e | 69 | #endif /* CONFIG_CIFS_DEBUG2 */ |
3979877e SF |
70 | } |
71 | ||
ffdd6e4d | 72 | void cifs_dump_mids(struct TCP_Server_Info *server) |
3979877e | 73 | { |
8aa26f3e | 74 | #ifdef CONFIG_CIFS_DEBUG2 |
3979877e | 75 | struct list_head *tmp; |
ffdd6e4d | 76 | struct mid_q_entry *mid_entry; |
3979877e | 77 | |
221601c3 | 78 | if (server == NULL) |
3979877e SF |
79 | return; |
80 | ||
b6b38f70 | 81 | cERROR(1, "Dump pending requests:"); |
3979877e SF |
82 | spin_lock(&GlobalMid_Lock); |
83 | list_for_each(tmp, &server->pending_mid_q) { | |
84 | mid_entry = list_entry(tmp, struct mid_q_entry, qhead); | |
7c9421e1 PS |
85 | cERROR(1, "State: %d Cmd: %d Pid: %d Cbdata: %p Mid %llu", |
86 | mid_entry->mid_state, | |
87 | le16_to_cpu(mid_entry->command), | |
ad8b15f0 | 88 | mid_entry->pid, |
2b84a36c | 89 | mid_entry->callback_data, |
b6b38f70 | 90 | mid_entry->mid); |
3979877e | 91 | #ifdef CONFIG_CIFS_STATS2 |
b6b38f70 | 92 | cERROR(1, "IsLarge: %d buf: %p time rcv: %ld now: %ld", |
7c9421e1 | 93 | mid_entry->large_buf, |
ad8b15f0 SF |
94 | mid_entry->resp_buf, |
95 | mid_entry->when_received, | |
b6b38f70 | 96 | jiffies); |
3979877e | 97 | #endif /* STATS2 */ |
b6b38f70 JP |
98 | cERROR(1, "IsMult: %d IsEnd: %d", mid_entry->multiRsp, |
99 | mid_entry->multiEnd); | |
ad8b15f0 SF |
100 | if (mid_entry->resp_buf) { |
101 | cifs_dump_detail(mid_entry->resp_buf); | |
102 | cifs_dump_mem("existing buf: ", | |
103 | mid_entry->resp_buf, 62); | |
3979877e SF |
104 | } |
105 | } | |
106 | spin_unlock(&GlobalMid_Lock); | |
3979877e | 107 | #endif /* CONFIG_CIFS_DEBUG2 */ |
8aa26f3e | 108 | } |
3979877e | 109 | |
1da177e4 | 110 | #ifdef CONFIG_PROC_FS |
f984c7b9 | 111 | static int cifs_debug_data_proc_show(struct seq_file *m, void *v) |
1da177e4 | 112 | { |
f1987b44 | 113 | struct list_head *tmp1, *tmp2, *tmp3; |
ffdd6e4d | 114 | struct mid_q_entry *mid_entry; |
14fbf50d | 115 | struct TCP_Server_Info *server; |
96daf2b0 SF |
116 | struct cifs_ses *ses; |
117 | struct cifs_tcon *tcon; | |
f1987b44 JL |
118 | int i, j; |
119 | __u32 dev_type; | |
1da177e4 | 120 | |
f984c7b9 | 121 | seq_puts(m, |
1da177e4 LT |
122 | "Display Internal CIFS Data Structures for Debugging\n" |
123 | "---------------------------------------------------\n"); | |
f984c7b9 | 124 | seq_printf(m, "CIFS Version %s\n", CIFS_VERSION); |
ca40b714 | 125 | seq_printf(m, "Features:"); |
f579903e | 126 | #ifdef CONFIG_CIFS_DFS_UPCALL |
ca40b714 | 127 | seq_printf(m, " dfs"); |
f579903e SJ |
128 | #endif |
129 | #ifdef CONFIG_CIFS_FSCACHE | |
ca40b714 | 130 | seq_printf(m, " fscache"); |
f579903e SJ |
131 | #endif |
132 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
ca40b714 | 133 | seq_printf(m, " lanman"); |
f579903e SJ |
134 | #endif |
135 | #ifdef CONFIG_CIFS_POSIX | |
ca40b714 | 136 | seq_printf(m, " posix"); |
f579903e SJ |
137 | #endif |
138 | #ifdef CONFIG_CIFS_UPCALL | |
ca40b714 | 139 | seq_printf(m, " spnego"); |
f579903e SJ |
140 | #endif |
141 | #ifdef CONFIG_CIFS_XATTR | |
ca40b714 JL |
142 | seq_printf(m, " xattr"); |
143 | #endif | |
144 | #ifdef CONFIG_CIFS_ACL | |
145 | seq_printf(m, " acl"); | |
f579903e SJ |
146 | #endif |
147 | seq_putc(m, '\n'); | |
f984c7b9 AD |
148 | seq_printf(m, "Active VFS Requests: %d\n", GlobalTotalActiveXid); |
149 | seq_printf(m, "Servers:"); | |
1da177e4 LT |
150 | |
151 | i = 0; | |
3f9bcca7 | 152 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
153 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
154 | server = list_entry(tmp1, struct TCP_Server_Info, | |
14fbf50d | 155 | tcp_ses_list); |
1da177e4 | 156 | i++; |
14fbf50d | 157 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 158 | ses = list_entry(tmp2, struct cifs_ses, |
14fbf50d JL |
159 | smb_ses_list); |
160 | if ((ses->serverDomain == NULL) || | |
161 | (ses->serverOS == NULL) || | |
162 | (ses->serverNOS == NULL)) { | |
f1987b44 JL |
163 | seq_printf(m, "\n%d) entry for %s not fully " |
164 | "displayed\n\t", i, ses->serverName); | |
14fbf50d JL |
165 | } else { |
166 | seq_printf(m, | |
f1987b44 JL |
167 | "\n%d) Name: %s Domain: %s Uses: %d OS:" |
168 | " %s\n\tNOS: %s\tCapability: 0x%x\n\tSMB" | |
221601c3 | 169 | " session status: %d\t", |
b8643e1b | 170 | i, ses->serverName, ses->serverDomain, |
14fbf50d | 171 | ses->ses_count, ses->serverOS, ses->serverNOS, |
221601c3 | 172 | ses->capabilities, ses->status); |
14fbf50d | 173 | } |
f984c7b9 | 174 | seq_printf(m, "TCP status: %d\n\tLocal Users To " |
14fbf50d JL |
175 | "Server: %d SecMode: 0x%x Req On Wire: %d", |
176 | server->tcpStatus, server->srv_count, | |
fc40f9cf | 177 | server->sec_mode, in_flight(server)); |
131afd0b SF |
178 | |
179 | #ifdef CONFIG_CIFS_STATS2 | |
f984c7b9 | 180 | seq_printf(m, " In Send: %d In MaxReq Wait: %d", |
789e6661 | 181 | atomic_read(&server->in_send), |
14fbf50d | 182 | atomic_read(&server->num_waiters)); |
131afd0b SF |
183 | #endif |
184 | ||
f1987b44 JL |
185 | seq_puts(m, "\n\tShares:"); |
186 | j = 0; | |
187 | list_for_each(tmp3, &ses->tcon_list) { | |
96daf2b0 | 188 | tcon = list_entry(tmp3, struct cifs_tcon, |
f1987b44 JL |
189 | tcon_list); |
190 | ++j; | |
191 | dev_type = le32_to_cpu(tcon->fsDevInfo.DeviceType); | |
192 | seq_printf(m, "\n\t%d) %s Mounts: %d ", j, | |
193 | tcon->treeName, tcon->tc_count); | |
194 | if (tcon->nativeFileSystem) { | |
195 | seq_printf(m, "Type: %s ", | |
196 | tcon->nativeFileSystem); | |
197 | } | |
198 | seq_printf(m, "DevInfo: 0x%x Attributes: 0x%x" | |
199 | "\nPathComponentMax: %d Status: 0x%d", | |
200 | le32_to_cpu(tcon->fsDevInfo.DeviceCharacteristics), | |
201 | le32_to_cpu(tcon->fsAttrInfo.Attributes), | |
202 | le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength), | |
203 | tcon->tidStatus); | |
204 | if (dev_type == FILE_DEVICE_DISK) | |
205 | seq_puts(m, " type: DISK "); | |
206 | else if (dev_type == FILE_DEVICE_CD_ROM) | |
207 | seq_puts(m, " type: CDROM "); | |
208 | else | |
209 | seq_printf(m, " type: %d ", dev_type); | |
210 | ||
211 | if (tcon->need_reconnect) | |
212 | seq_puts(m, "\tDISCONNECTED "); | |
213 | seq_putc(m, '\n'); | |
214 | } | |
215 | ||
216 | seq_puts(m, "\n\tMIDs:\n"); | |
1da177e4 LT |
217 | |
218 | spin_lock(&GlobalMid_Lock); | |
14fbf50d | 219 | list_for_each(tmp3, &server->pending_mid_q) { |
f1987b44 | 220 | mid_entry = list_entry(tmp3, struct mid_q_entry, |
1da177e4 | 221 | qhead); |
f1987b44 | 222 | seq_printf(m, "\tState: %d com: %d pid:" |
7c9421e1 PS |
223 | " %d cbdata: %p mid %llu\n", |
224 | mid_entry->mid_state, | |
225 | le16_to_cpu(mid_entry->command), | |
226 | mid_entry->pid, | |
227 | mid_entry->callback_data, | |
228 | mid_entry->mid); | |
1da177e4 | 229 | } |
221601c3 | 230 | spin_unlock(&GlobalMid_Lock); |
1da177e4 | 231 | } |
1da177e4 | 232 | } |
3f9bcca7 | 233 | spin_unlock(&cifs_tcp_ses_lock); |
f984c7b9 | 234 | seq_putc(m, '\n'); |
1da177e4 | 235 | |
1da177e4 | 236 | /* BB add code to dump additional info such as TCP session info now */ |
f984c7b9 AD |
237 | return 0; |
238 | } | |
1da177e4 | 239 | |
f984c7b9 AD |
240 | static int cifs_debug_data_proc_open(struct inode *inode, struct file *file) |
241 | { | |
242 | return single_open(file, cifs_debug_data_proc_show, NULL); | |
1da177e4 LT |
243 | } |
244 | ||
f984c7b9 AD |
245 | static const struct file_operations cifs_debug_data_proc_fops = { |
246 | .owner = THIS_MODULE, | |
247 | .open = cifs_debug_data_proc_open, | |
248 | .read = seq_read, | |
249 | .llseek = seq_lseek, | |
250 | .release = single_release, | |
251 | }; | |
1047abc1 | 252 | |
f984c7b9 AD |
253 | #ifdef CONFIG_CIFS_STATS |
254 | static ssize_t cifs_stats_proc_write(struct file *file, | |
255 | const char __user *buffer, size_t count, loff_t *ppos) | |
1047abc1 | 256 | { |
221601c3 SF |
257 | char c; |
258 | int rc; | |
f1987b44 JL |
259 | struct list_head *tmp1, *tmp2, *tmp3; |
260 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
261 | struct cifs_ses *ses; |
262 | struct cifs_tcon *tcon; | |
1047abc1 | 263 | |
221601c3 SF |
264 | rc = get_user(c, buffer); |
265 | if (rc) | |
266 | return rc; | |
1047abc1 | 267 | |
221601c3 | 268 | if (c == '1' || c == 'y' || c == 'Y' || c == '0') { |
4498eed5 SF |
269 | #ifdef CONFIG_CIFS_STATS2 |
270 | atomic_set(&totBufAllocCount, 0); | |
271 | atomic_set(&totSmBufAllocCount, 0); | |
272 | #endif /* CONFIG_CIFS_STATS2 */ | |
3f9bcca7 | 273 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
274 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
275 | server = list_entry(tmp1, struct TCP_Server_Info, | |
276 | tcp_ses_list); | |
c2b3382c | 277 | list_for_each(tmp2, &server->smb_ses_list) { |
96daf2b0 | 278 | ses = list_entry(tmp2, struct cifs_ses, |
c2b3382c | 279 | smb_ses_list); |
f1987b44 JL |
280 | list_for_each(tmp3, &ses->tcon_list) { |
281 | tcon = list_entry(tmp3, | |
96daf2b0 | 282 | struct cifs_tcon, |
f1987b44 JL |
283 | tcon_list); |
284 | atomic_set(&tcon->num_smbs_sent, 0); | |
285 | atomic_set(&tcon->num_writes, 0); | |
286 | atomic_set(&tcon->num_reads, 0); | |
287 | atomic_set(&tcon->num_oplock_brks, 0); | |
288 | atomic_set(&tcon->num_opens, 0); | |
65bc98b0 SF |
289 | atomic_set(&tcon->num_posixopens, 0); |
290 | atomic_set(&tcon->num_posixmkdirs, 0); | |
f1987b44 JL |
291 | atomic_set(&tcon->num_closes, 0); |
292 | atomic_set(&tcon->num_deletes, 0); | |
293 | atomic_set(&tcon->num_mkdirs, 0); | |
294 | atomic_set(&tcon->num_rmdirs, 0); | |
295 | atomic_set(&tcon->num_renames, 0); | |
296 | atomic_set(&tcon->num_t2renames, 0); | |
297 | atomic_set(&tcon->num_ffirst, 0); | |
298 | atomic_set(&tcon->num_fnext, 0); | |
299 | atomic_set(&tcon->num_fclose, 0); | |
300 | atomic_set(&tcon->num_hardlinks, 0); | |
301 | atomic_set(&tcon->num_symlinks, 0); | |
302 | atomic_set(&tcon->num_locks, 0); | |
303 | } | |
304 | } | |
1047abc1 | 305 | } |
3f9bcca7 | 306 | spin_unlock(&cifs_tcp_ses_lock); |
1047abc1 SF |
307 | } |
308 | ||
221601c3 | 309 | return count; |
1047abc1 SF |
310 | } |
311 | ||
f984c7b9 | 312 | static int cifs_stats_proc_show(struct seq_file *m, void *v) |
1da177e4 | 313 | { |
f984c7b9 | 314 | int i; |
f1987b44 JL |
315 | struct list_head *tmp1, *tmp2, *tmp3; |
316 | struct TCP_Server_Info *server; | |
96daf2b0 SF |
317 | struct cifs_ses *ses; |
318 | struct cifs_tcon *tcon; | |
1da177e4 | 319 | |
f984c7b9 | 320 | seq_printf(m, |
1da177e4 LT |
321 | "Resources in use\nCIFS Session: %d\n", |
322 | sesInfoAllocCount.counter); | |
f984c7b9 | 323 | seq_printf(m, "Share (unique mount targets): %d\n", |
1da177e4 | 324 | tconInfoAllocCount.counter); |
f984c7b9 | 325 | seq_printf(m, "SMB Request/Response Buffer: %d Pool size: %d\n", |
b8643e1b SF |
326 | bufAllocCount.counter, |
327 | cifs_min_rcv + tcpSesAllocCount.counter); | |
f984c7b9 | 328 | seq_printf(m, "SMB Small Req/Resp Buffer: %d Pool size: %d\n", |
221601c3 | 329 | smBufAllocCount.counter, cifs_min_small); |
07475ffb | 330 | #ifdef CONFIG_CIFS_STATS2 |
f984c7b9 | 331 | seq_printf(m, "Total Large %d Small %d Allocations\n", |
07475ffb | 332 | atomic_read(&totBufAllocCount), |
221601c3 | 333 | atomic_read(&totSmBufAllocCount)); |
07475ffb SF |
334 | #endif /* CONFIG_CIFS_STATS2 */ |
335 | ||
8097531a | 336 | seq_printf(m, "Operations (MIDs): %d\n", atomic_read(&midCount)); |
f984c7b9 | 337 | seq_printf(m, |
1da177e4 | 338 | "\n%d session %d share reconnects\n", |
221601c3 | 339 | tcpSesReconnectCount.counter, tconInfoReconnectCount.counter); |
1da177e4 | 340 | |
f984c7b9 | 341 | seq_printf(m, |
1da177e4 | 342 | "Total vfs operations: %d maximum at one time: %d\n", |
221601c3 | 343 | GlobalCurrentXid, GlobalMaxActiveXid); |
1da177e4 LT |
344 | |
345 | i = 0; | |
3f9bcca7 | 346 | spin_lock(&cifs_tcp_ses_lock); |
f1987b44 JL |
347 | list_for_each(tmp1, &cifs_tcp_ses_list) { |
348 | server = list_entry(tmp1, struct TCP_Server_Info, | |
349 | tcp_ses_list); | |
350 | list_for_each(tmp2, &server->smb_ses_list) { | |
96daf2b0 | 351 | ses = list_entry(tmp2, struct cifs_ses, |
f1987b44 JL |
352 | smb_ses_list); |
353 | list_for_each(tmp3, &ses->tcon_list) { | |
354 | tcon = list_entry(tmp3, | |
96daf2b0 | 355 | struct cifs_tcon, |
f1987b44 JL |
356 | tcon_list); |
357 | i++; | |
358 | seq_printf(m, "\n%d) %s", i, tcon->treeName); | |
359 | if (tcon->need_reconnect) | |
360 | seq_puts(m, "\tDISCONNECTED "); | |
361 | seq_printf(m, "\nSMBs: %d Oplock Breaks: %d", | |
362 | atomic_read(&tcon->num_smbs_sent), | |
363 | atomic_read(&tcon->num_oplock_brks)); | |
364 | seq_printf(m, "\nReads: %d Bytes: %lld", | |
365 | atomic_read(&tcon->num_reads), | |
366 | (long long)(tcon->bytes_read)); | |
367 | seq_printf(m, "\nWrites: %d Bytes: %lld", | |
368 | atomic_read(&tcon->num_writes), | |
369 | (long long)(tcon->bytes_written)); | |
b298f223 SF |
370 | seq_printf(m, "\nFlushes: %d", |
371 | atomic_read(&tcon->num_flushes)); | |
f1987b44 JL |
372 | seq_printf(m, "\nLocks: %d HardLinks: %d " |
373 | "Symlinks: %d", | |
374 | atomic_read(&tcon->num_locks), | |
375 | atomic_read(&tcon->num_hardlinks), | |
376 | atomic_read(&tcon->num_symlinks)); | |
65bc98b0 | 377 | seq_printf(m, "\nOpens: %d Closes: %d " |
f1987b44 JL |
378 | "Deletes: %d", |
379 | atomic_read(&tcon->num_opens), | |
380 | atomic_read(&tcon->num_closes), | |
381 | atomic_read(&tcon->num_deletes)); | |
65bc98b0 SF |
382 | seq_printf(m, "\nPosix Opens: %d " |
383 | "Posix Mkdirs: %d", | |
384 | atomic_read(&tcon->num_posixopens), | |
385 | atomic_read(&tcon->num_posixmkdirs)); | |
f1987b44 JL |
386 | seq_printf(m, "\nMkdirs: %d Rmdirs: %d", |
387 | atomic_read(&tcon->num_mkdirs), | |
388 | atomic_read(&tcon->num_rmdirs)); | |
389 | seq_printf(m, "\nRenames: %d T2 Renames %d", | |
390 | atomic_read(&tcon->num_renames), | |
391 | atomic_read(&tcon->num_t2renames)); | |
392 | seq_printf(m, "\nFindFirst: %d FNext %d " | |
393 | "FClose %d", | |
394 | atomic_read(&tcon->num_ffirst), | |
395 | atomic_read(&tcon->num_fnext), | |
396 | atomic_read(&tcon->num_fclose)); | |
397 | } | |
398 | } | |
1da177e4 | 399 | } |
3f9bcca7 | 400 | spin_unlock(&cifs_tcp_ses_lock); |
1da177e4 | 401 | |
f984c7b9 AD |
402 | seq_putc(m, '\n'); |
403 | return 0; | |
404 | } | |
221601c3 | 405 | |
f984c7b9 AD |
406 | static int cifs_stats_proc_open(struct inode *inode, struct file *file) |
407 | { | |
408 | return single_open(file, cifs_stats_proc_show, NULL); | |
1da177e4 | 409 | } |
f984c7b9 AD |
410 | |
411 | static const struct file_operations cifs_stats_proc_fops = { | |
412 | .owner = THIS_MODULE, | |
413 | .open = cifs_stats_proc_open, | |
414 | .read = seq_read, | |
415 | .llseek = seq_lseek, | |
416 | .release = single_release, | |
417 | .write = cifs_stats_proc_write, | |
418 | }; | |
90c81e0b | 419 | #endif /* STATS */ |
1da177e4 LT |
420 | |
421 | static struct proc_dir_entry *proc_fs_cifs; | |
f984c7b9 | 422 | static const struct file_operations cifsFYI_proc_fops; |
f984c7b9 AD |
423 | static const struct file_operations cifs_lookup_cache_proc_fops; |
424 | static const struct file_operations traceSMB_proc_fops; | |
f984c7b9 | 425 | static const struct file_operations cifs_security_flags_proc_fops; |
f984c7b9 | 426 | static const struct file_operations cifs_linux_ext_proc_fops; |
1da177e4 LT |
427 | |
428 | void | |
429 | cifs_proc_init(void) | |
430 | { | |
36a5aeb8 | 431 | proc_fs_cifs = proc_mkdir("fs/cifs", NULL); |
1da177e4 LT |
432 | if (proc_fs_cifs == NULL) |
433 | return; | |
434 | ||
f984c7b9 | 435 | proc_create("DebugData", 0, proc_fs_cifs, &cifs_debug_data_proc_fops); |
1da177e4 LT |
436 | |
437 | #ifdef CONFIG_CIFS_STATS | |
f984c7b9 | 438 | proc_create("Stats", 0, proc_fs_cifs, &cifs_stats_proc_fops); |
90c81e0b | 439 | #endif /* STATS */ |
f984c7b9 AD |
440 | proc_create("cifsFYI", 0, proc_fs_cifs, &cifsFYI_proc_fops); |
441 | proc_create("traceSMB", 0, proc_fs_cifs, &traceSMB_proc_fops); | |
99b1f5b2 SF |
442 | proc_create("LinuxExtensionsEnabled", 0, proc_fs_cifs, |
443 | &cifs_linux_ext_proc_fops); | |
99b1f5b2 SF |
444 | proc_create("SecurityFlags", 0, proc_fs_cifs, |
445 | &cifs_security_flags_proc_fops); | |
446 | proc_create("LookupCacheEnabled", 0, proc_fs_cifs, | |
447 | &cifs_lookup_cache_proc_fops); | |
1da177e4 LT |
448 | } |
449 | ||
450 | void | |
451 | cifs_proc_clean(void) | |
452 | { | |
453 | if (proc_fs_cifs == NULL) | |
454 | return; | |
455 | ||
456 | remove_proc_entry("DebugData", proc_fs_cifs); | |
457 | remove_proc_entry("cifsFYI", proc_fs_cifs); | |
458 | remove_proc_entry("traceSMB", proc_fs_cifs); | |
459 | #ifdef CONFIG_CIFS_STATS | |
460 | remove_proc_entry("Stats", proc_fs_cifs); | |
461 | #endif | |
221601c3 | 462 | remove_proc_entry("SecurityFlags", proc_fs_cifs); |
221601c3 | 463 | remove_proc_entry("LinuxExtensionsEnabled", proc_fs_cifs); |
221601c3 | 464 | remove_proc_entry("LookupCacheEnabled", proc_fs_cifs); |
36a5aeb8 | 465 | remove_proc_entry("fs/cifs", NULL); |
1da177e4 LT |
466 | } |
467 | ||
f984c7b9 | 468 | static int cifsFYI_proc_show(struct seq_file *m, void *v) |
1da177e4 | 469 | { |
f984c7b9 AD |
470 | seq_printf(m, "%d\n", cifsFYI); |
471 | return 0; | |
472 | } | |
1da177e4 | 473 | |
f984c7b9 AD |
474 | static int cifsFYI_proc_open(struct inode *inode, struct file *file) |
475 | { | |
476 | return single_open(file, cifsFYI_proc_show, NULL); | |
1da177e4 | 477 | } |
f984c7b9 AD |
478 | |
479 | static ssize_t cifsFYI_proc_write(struct file *file, const char __user *buffer, | |
480 | size_t count, loff_t *ppos) | |
1da177e4 LT |
481 | { |
482 | char c; | |
483 | int rc; | |
484 | ||
485 | rc = get_user(c, buffer); | |
486 | if (rc) | |
487 | return rc; | |
488 | if (c == '0' || c == 'n' || c == 'N') | |
489 | cifsFYI = 0; | |
490 | else if (c == '1' || c == 'y' || c == 'Y') | |
491 | cifsFYI = 1; | |
221601c3 | 492 | else if ((c > '1') && (c <= '9')) |
1047abc1 | 493 | cifsFYI = (int) (c - '0'); /* see cifs_debug.h for meanings */ |
1da177e4 LT |
494 | |
495 | return count; | |
496 | } | |
497 | ||
f984c7b9 AD |
498 | static const struct file_operations cifsFYI_proc_fops = { |
499 | .owner = THIS_MODULE, | |
500 | .open = cifsFYI_proc_open, | |
501 | .read = seq_read, | |
502 | .llseek = seq_lseek, | |
503 | .release = single_release, | |
504 | .write = cifsFYI_proc_write, | |
505 | }; | |
1da177e4 | 506 | |
f984c7b9 AD |
507 | static int cifs_linux_ext_proc_show(struct seq_file *m, void *v) |
508 | { | |
509 | seq_printf(m, "%d\n", linuxExtEnabled); | |
510 | return 0; | |
511 | } | |
1da177e4 | 512 | |
f984c7b9 AD |
513 | static int cifs_linux_ext_proc_open(struct inode *inode, struct file *file) |
514 | { | |
515 | return single_open(file, cifs_linux_ext_proc_show, NULL); | |
1da177e4 | 516 | } |
f984c7b9 AD |
517 | |
518 | static ssize_t cifs_linux_ext_proc_write(struct file *file, | |
519 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 520 | { |
221601c3 SF |
521 | char c; |
522 | int rc; | |
523 | ||
524 | rc = get_user(c, buffer); | |
525 | if (rc) | |
526 | return rc; | |
527 | if (c == '0' || c == 'n' || c == 'N') | |
528 | linuxExtEnabled = 0; | |
529 | else if (c == '1' || c == 'y' || c == 'Y') | |
530 | linuxExtEnabled = 1; | |
531 | ||
532 | return count; | |
1da177e4 LT |
533 | } |
534 | ||
f984c7b9 AD |
535 | static const struct file_operations cifs_linux_ext_proc_fops = { |
536 | .owner = THIS_MODULE, | |
537 | .open = cifs_linux_ext_proc_open, | |
538 | .read = seq_read, | |
539 | .llseek = seq_lseek, | |
540 | .release = single_release, | |
541 | .write = cifs_linux_ext_proc_write, | |
542 | }; | |
1da177e4 | 543 | |
f984c7b9 | 544 | static int cifs_lookup_cache_proc_show(struct seq_file *m, void *v) |
1da177e4 | 545 | { |
f984c7b9 AD |
546 | seq_printf(m, "%d\n", lookupCacheEnabled); |
547 | return 0; | |
548 | } | |
1da177e4 | 549 | |
f984c7b9 AD |
550 | static int cifs_lookup_cache_proc_open(struct inode *inode, struct file *file) |
551 | { | |
552 | return single_open(file, cifs_lookup_cache_proc_show, NULL); | |
1da177e4 | 553 | } |
f984c7b9 AD |
554 | |
555 | static ssize_t cifs_lookup_cache_proc_write(struct file *file, | |
556 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 LT |
557 | { |
558 | char c; | |
559 | int rc; | |
560 | ||
561 | rc = get_user(c, buffer); | |
562 | if (rc) | |
563 | return rc; | |
564 | if (c == '0' || c == 'n' || c == 'N') | |
565 | lookupCacheEnabled = 0; | |
566 | else if (c == '1' || c == 'y' || c == 'Y') | |
567 | lookupCacheEnabled = 1; | |
568 | ||
569 | return count; | |
570 | } | |
1da177e4 | 571 | |
f984c7b9 AD |
572 | static const struct file_operations cifs_lookup_cache_proc_fops = { |
573 | .owner = THIS_MODULE, | |
574 | .open = cifs_lookup_cache_proc_open, | |
575 | .read = seq_read, | |
576 | .llseek = seq_lseek, | |
577 | .release = single_release, | |
578 | .write = cifs_lookup_cache_proc_write, | |
579 | }; | |
1da177e4 | 580 | |
f984c7b9 AD |
581 | static int traceSMB_proc_show(struct seq_file *m, void *v) |
582 | { | |
583 | seq_printf(m, "%d\n", traceSMB); | |
584 | return 0; | |
585 | } | |
1da177e4 | 586 | |
f984c7b9 AD |
587 | static int traceSMB_proc_open(struct inode *inode, struct file *file) |
588 | { | |
589 | return single_open(file, traceSMB_proc_show, NULL); | |
1da177e4 | 590 | } |
f984c7b9 AD |
591 | |
592 | static ssize_t traceSMB_proc_write(struct file *file, const char __user *buffer, | |
593 | size_t count, loff_t *ppos) | |
1da177e4 LT |
594 | { |
595 | char c; | |
596 | int rc; | |
597 | ||
598 | rc = get_user(c, buffer); | |
599 | if (rc) | |
600 | return rc; | |
601 | if (c == '0' || c == 'n' || c == 'N') | |
602 | traceSMB = 0; | |
603 | else if (c == '1' || c == 'y' || c == 'Y') | |
604 | traceSMB = 1; | |
605 | ||
606 | return count; | |
607 | } | |
608 | ||
f984c7b9 AD |
609 | static const struct file_operations traceSMB_proc_fops = { |
610 | .owner = THIS_MODULE, | |
611 | .open = traceSMB_proc_open, | |
612 | .read = seq_read, | |
613 | .llseek = seq_lseek, | |
614 | .release = single_release, | |
615 | .write = traceSMB_proc_write, | |
616 | }; | |
1da177e4 | 617 | |
f984c7b9 AD |
618 | static int cifs_security_flags_proc_show(struct seq_file *m, void *v) |
619 | { | |
04912d6a | 620 | seq_printf(m, "0x%x\n", global_secflags); |
f984c7b9 AD |
621 | return 0; |
622 | } | |
1da177e4 | 623 | |
f984c7b9 AD |
624 | static int cifs_security_flags_proc_open(struct inode *inode, struct file *file) |
625 | { | |
626 | return single_open(file, cifs_security_flags_proc_show, NULL); | |
1da177e4 | 627 | } |
f984c7b9 AD |
628 | |
629 | static ssize_t cifs_security_flags_proc_write(struct file *file, | |
630 | const char __user *buffer, size_t count, loff_t *ppos) | |
1da177e4 | 631 | { |
bdc4bf6e SF |
632 | unsigned int flags; |
633 | char flags_string[12]; | |
1da177e4 | 634 | char c; |
bdc4bf6e | 635 | |
221601c3 | 636 | if ((count < 1) || (count > 11)) |
3979877e | 637 | return -EINVAL; |
1da177e4 | 638 | |
bdc4bf6e | 639 | memset(flags_string, 0, 12); |
3979877e | 640 | |
221601c3 | 641 | if (copy_from_user(flags_string, buffer, count)) |
bdc4bf6e | 642 | return -EFAULT; |
3979877e | 643 | |
221601c3 | 644 | if (count < 3) { |
bdc4bf6e SF |
645 | /* single char or single char followed by null */ |
646 | c = flags_string[0]; | |
a013689d | 647 | if (c == '0' || c == 'n' || c == 'N') { |
04912d6a | 648 | global_secflags = CIFSSEC_DEF; /* default */ |
a013689d SF |
649 | return count; |
650 | } else if (c == '1' || c == 'y' || c == 'Y') { | |
04912d6a | 651 | global_secflags = CIFSSEC_MAX; |
a013689d SF |
652 | return count; |
653 | } else if (!isdigit(c)) { | |
b6b38f70 | 654 | cERROR(1, "invalid flag %c", c); |
a013689d SF |
655 | return -EINVAL; |
656 | } | |
bdc4bf6e SF |
657 | } |
658 | /* else we have a number */ | |
659 | ||
660 | flags = simple_strtoul(flags_string, NULL, 0); | |
661 | ||
b6b38f70 | 662 | cFYI(1, "sec flags 0x%x", flags); |
bdc4bf6e | 663 | |
221601c3 | 664 | if (flags <= 0) { |
b6b38f70 | 665 | cERROR(1, "invalid security flags %s", flags_string); |
bdc4bf6e SF |
666 | return -EINVAL; |
667 | } | |
1da177e4 | 668 | |
221601c3 | 669 | if (flags & ~CIFSSEC_MASK) { |
b6b38f70 JP |
670 | cERROR(1, "attempt to set unsupported security flags 0x%x", |
671 | flags & ~CIFSSEC_MASK); | |
bdc4bf6e SF |
672 | return -EINVAL; |
673 | } | |
674 | /* flags look ok - update the global security flags for cifs module */ | |
04912d6a JL |
675 | global_secflags = flags; |
676 | if (global_secflags & CIFSSEC_MUST_SIGN) { | |
762e5ab7 | 677 | /* requiring signing implies signing is allowed */ |
04912d6a | 678 | global_secflags |= CIFSSEC_MAY_SIGN; |
b6b38f70 | 679 | cFYI(1, "packet signing now required"); |
04912d6a | 680 | } else if ((global_secflags & CIFSSEC_MAY_SIGN) == 0) { |
b6b38f70 | 681 | cFYI(1, "packet signing disabled"); |
762e5ab7 SF |
682 | } |
683 | /* BB should we turn on MAY flags for other MUST options? */ | |
1da177e4 LT |
684 | return count; |
685 | } | |
f984c7b9 AD |
686 | |
687 | static const struct file_operations cifs_security_flags_proc_fops = { | |
688 | .owner = THIS_MODULE, | |
689 | .open = cifs_security_flags_proc_open, | |
690 | .read = seq_read, | |
691 | .llseek = seq_lseek, | |
692 | .release = single_release, | |
693 | .write = cifs_security_flags_proc_write, | |
694 | }; | |
90c81e0b | 695 | #else |
e086fcea | 696 | inline void cifs_proc_init(void) |
90c81e0b SF |
697 | { |
698 | } | |
699 | ||
e086fcea | 700 | inline void cifs_proc_clean(void) |
90c81e0b SF |
701 | { |
702 | } | |
703 | #endif /* PROC_FS */ |