Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/cifs/cifssmb.c | |
3 | * | |
ad7a2926 | 4 | * Copyright (C) International Business Machines Corp., 2002,2008 |
1da177e4 LT |
5 | * Author(s): Steve French (sfrench@us.ibm.com) |
6 | * | |
7 | * Contains the routines for constructing the SMB PDUs themselves | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU Lesser General Public License as published | |
11 | * by the Free Software Foundation; either version 2.1 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
17 | * the GNU Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public License | |
20 | * along with this library; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | /* SMB/CIFS PDU handling routines here - except for leftovers in connect.c */ | |
25 | /* These are mostly routines that operate on a pathname, or on a tree id */ | |
26 | /* (mounted volume), but there are eight handle based routines which must be */ | |
2dd29d31 SF |
27 | /* treated slightly differently for reconnection purposes since we never */ |
28 | /* want to reuse a stale file handle and only the caller knows the file info */ | |
1da177e4 LT |
29 | |
30 | #include <linux/fs.h> | |
31 | #include <linux/kernel.h> | |
32 | #include <linux/vfs.h> | |
33 | #include <linux/posix_acl_xattr.h> | |
34 | #include <asm/uaccess.h> | |
35 | #include "cifspdu.h" | |
36 | #include "cifsglob.h" | |
d0d66c44 | 37 | #include "cifsacl.h" |
1da177e4 LT |
38 | #include "cifsproto.h" |
39 | #include "cifs_unicode.h" | |
40 | #include "cifs_debug.h" | |
41 | ||
42 | #ifdef CONFIG_CIFS_POSIX | |
43 | static struct { | |
44 | int index; | |
45 | char *name; | |
46 | } protocols[] = { | |
3979877e SF |
47 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
48 | {LANMAN_PROT, "\2LM1.2X002"}, | |
9ac00b7d | 49 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 50 | #endif /* weak password hashing for legacy clients */ |
50c2f753 | 51 | {CIFS_PROT, "\2NT LM 0.12"}, |
3979877e | 52 | {POSIX_PROT, "\2POSIX 2"}, |
1da177e4 LT |
53 | {BAD_PROT, "\2"} |
54 | }; | |
55 | #else | |
56 | static struct { | |
57 | int index; | |
58 | char *name; | |
59 | } protocols[] = { | |
3979877e SF |
60 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
61 | {LANMAN_PROT, "\2LM1.2X002"}, | |
18f75ca0 | 62 | {LANMAN2_PROT, "\2LANMAN2.1"}, |
3979877e | 63 | #endif /* weak password hashing for legacy clients */ |
790fe579 | 64 | {CIFS_PROT, "\2NT LM 0.12"}, |
1da177e4 LT |
65 | {BAD_PROT, "\2"} |
66 | }; | |
67 | #endif | |
68 | ||
3979877e SF |
69 | /* define the number of elements in the cifs dialect array */ |
70 | #ifdef CONFIG_CIFS_POSIX | |
71 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 72 | #define CIFS_NUM_PROT 4 |
3979877e SF |
73 | #else |
74 | #define CIFS_NUM_PROT 2 | |
75 | #endif /* CIFS_WEAK_PW_HASH */ | |
76 | #else /* not posix */ | |
77 | #ifdef CONFIG_CIFS_WEAK_PW_HASH | |
9ac00b7d | 78 | #define CIFS_NUM_PROT 3 |
3979877e SF |
79 | #else |
80 | #define CIFS_NUM_PROT 1 | |
81 | #endif /* CONFIG_CIFS_WEAK_PW_HASH */ | |
82 | #endif /* CIFS_POSIX */ | |
83 | ||
fec4585f IM |
84 | /* Allocates buffer into dst and copies smb string from src to it. |
85 | * caller is responsible for freeing dst if function returned 0. | |
86 | * returns: | |
87 | * on success - 0 | |
88 | * on failure - errno | |
89 | */ | |
90 | static int | |
91 | cifs_strncpy_to_host(char **dst, const char *src, const int maxlen, | |
92 | const bool is_unicode, const struct nls_table *nls_codepage) | |
93 | { | |
94 | int plen; | |
95 | ||
96 | if (is_unicode) { | |
97 | plen = UniStrnlen((wchar_t *)src, maxlen); | |
98 | *dst = kmalloc(plen + 2, GFP_KERNEL); | |
99 | if (!*dst) | |
100 | goto cifs_strncpy_to_host_ErrExit; | |
101 | cifs_strfromUCS_le(*dst, (__le16 *)src, plen, nls_codepage); | |
102 | } else { | |
103 | plen = strnlen(src, maxlen); | |
104 | *dst = kmalloc(plen + 2, GFP_KERNEL); | |
105 | if (!*dst) | |
106 | goto cifs_strncpy_to_host_ErrExit; | |
107 | strncpy(*dst, src, plen); | |
108 | } | |
109 | (*dst)[plen] = 0; | |
a1fe78f1 | 110 | (*dst)[plen+1] = 0; /* harmless for ASCII case, needed for Unicode */ |
fec4585f IM |
111 | return 0; |
112 | ||
113 | cifs_strncpy_to_host_ErrExit: | |
114 | cERROR(1, ("Failed to allocate buffer for string\n")); | |
115 | return -ENOMEM; | |
116 | } | |
117 | ||
1da177e4 LT |
118 | |
119 | /* Mark as invalid, all open files on tree connections since they | |
120 | were closed when session to server was lost */ | |
790fe579 | 121 | static void mark_open_files_invalid(struct cifsTconInfo *pTcon) |
1da177e4 LT |
122 | { |
123 | struct cifsFileInfo *open_file = NULL; | |
790fe579 SF |
124 | struct list_head *tmp; |
125 | struct list_head *tmp1; | |
1da177e4 LT |
126 | |
127 | /* list all files open on tree connection and mark them invalid */ | |
128 | write_lock(&GlobalSMBSeslock); | |
129 | list_for_each_safe(tmp, tmp1, &pTcon->openFileList) { | |
790fe579 | 130 | open_file = list_entry(tmp, struct cifsFileInfo, tlist); |
ad8b15f0 | 131 | open_file->invalidHandle = true; |
1da177e4 LT |
132 | } |
133 | write_unlock(&GlobalSMBSeslock); | |
09d1db5c SF |
134 | /* BB Add call to invalidate_inodes(sb) for all superblocks mounted |
135 | to this tcon */ | |
1da177e4 LT |
136 | } |
137 | ||
ad7a2926 SF |
138 | /* Allocate and return pointer to an SMB request buffer, and set basic |
139 | SMB information in the SMB header. If the return code is zero, this | |
140 | function must have filled in request_buf pointer */ | |
1da177e4 LT |
141 | static int |
142 | small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
ad7a2926 | 143 | void **request_buf) |
1da177e4 LT |
144 | { |
145 | int rc = 0; | |
146 | ||
147 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
148 | check for tcp and smb session status done differently | |
149 | for those three - in the calling routine */ | |
790fe579 SF |
150 | if (tcon) { |
151 | if (tcon->tidStatus == CifsExiting) { | |
6ab16d24 SF |
152 | /* only tree disconnect, open, and write, |
153 | (and ulogoff which does not have tcon) | |
154 | are allowed as we start force umount */ | |
790fe579 | 155 | if ((smb_command != SMB_COM_WRITE_ANDX) && |
50c2f753 | 156 | (smb_command != SMB_COM_OPEN_ANDX) && |
6ab16d24 | 157 | (smb_command != SMB_COM_TREE_DISCONNECT)) { |
790fe579 | 158 | cFYI(1, ("can not send cmd %d while umounting", |
6ab16d24 SF |
159 | smb_command)); |
160 | return -ENODEV; | |
161 | } | |
162 | } | |
790fe579 | 163 | if ((tcon->ses) && (tcon->ses->status != CifsExiting) && |
50c2f753 | 164 | (tcon->ses->server)) { |
1da177e4 | 165 | struct nls_table *nls_codepage; |
50c2f753 | 166 | /* Give Demultiplex thread up to 10 seconds to |
09d1db5c SF |
167 | reconnect, should be greater than cifs socket |
168 | timeout which is 7 seconds */ | |
c18c842b | 169 | while (tcon->ses->server->tcpStatus == |
63135e08 | 170 | CifsNeedReconnect) { |
1da177e4 | 171 | wait_event_interruptible_timeout(tcon->ses->server->response_q, |
c18c842b | 172 | (tcon->ses->server->tcpStatus == |
63135e08 SF |
173 | CifsGood), 10 * HZ); |
174 | if (tcon->ses->server->tcpStatus == | |
175 | CifsNeedReconnect) { | |
1da177e4 | 176 | /* on "soft" mounts we wait once */ |
4b18f2a9 | 177 | if (!tcon->retry || |
1da177e4 | 178 | (tcon->ses->status == CifsExiting)) { |
50c2f753 SF |
179 | cFYI(1, ("gave up waiting on " |
180 | "reconnect in smb_init")); | |
1da177e4 | 181 | return -EHOSTDOWN; |
09d1db5c SF |
182 | } /* else "hard" mount - keep retrying |
183 | until process is killed or server | |
184 | comes back on-line */ | |
1da177e4 LT |
185 | } else /* TCP session is reestablished now */ |
186 | break; | |
1da177e4 | 187 | } |
50c2f753 | 188 | |
1da177e4 LT |
189 | nls_codepage = load_nls_default(); |
190 | /* need to prevent multiple threads trying to | |
191 | simultaneously reconnect the same SMB session */ | |
192 | down(&tcon->ses->sesSem); | |
3b795210 | 193 | if (tcon->ses->need_reconnect) |
50c2f753 | 194 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 195 | nls_codepage); |
3b795210 | 196 | if (!rc && (tcon->need_reconnect)) { |
1da177e4 | 197 | mark_open_files_invalid(tcon); |
50c2f753 | 198 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
8af18971 | 199 | tcon, nls_codepage); |
1da177e4 | 200 | up(&tcon->ses->sesSem); |
3e84469d SF |
201 | /* BB FIXME add code to check if wsize needs |
202 | update due to negotiated smb buffer size | |
203 | shrinking */ | |
35028d71 | 204 | if (rc == 0) { |
1da177e4 | 205 | atomic_inc(&tconInfoReconnectCount); |
35028d71 SF |
206 | /* tell server Unix caps we support */ |
207 | if (tcon->ses->capabilities & CAP_UNIX) | |
208 | reset_cifs_unix_caps( | |
209 | 0 /* no xid */, | |
210 | tcon, | |
211 | NULL /* we do not know sb */, | |
212 | NULL /* no vol info */); | |
213 | } | |
1da177e4 LT |
214 | |
215 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
216 | /* Removed call to reopen open files here. |
217 | It is safer (and faster) to reopen files | |
09d1db5c | 218 | one at a time as needed in read and write */ |
1da177e4 | 219 | |
50c2f753 | 220 | /* Check if handle based operation so we |
09d1db5c SF |
221 | know whether we can continue or not without |
222 | returning to caller to reset file handle */ | |
50c2f753 | 223 | switch (smb_command) { |
1da177e4 LT |
224 | case SMB_COM_READ_ANDX: |
225 | case SMB_COM_WRITE_ANDX: | |
226 | case SMB_COM_CLOSE: | |
227 | case SMB_COM_FIND_CLOSE2: | |
228 | case SMB_COM_LOCKING_ANDX: { | |
229 | unload_nls(nls_codepage); | |
230 | return -EAGAIN; | |
231 | } | |
232 | } | |
233 | } else { | |
234 | up(&tcon->ses->sesSem); | |
235 | } | |
236 | unload_nls(nls_codepage); | |
237 | ||
238 | } else { | |
239 | return -EIO; | |
240 | } | |
241 | } | |
790fe579 | 242 | if (rc) |
1da177e4 LT |
243 | return rc; |
244 | ||
245 | *request_buf = cifs_small_buf_get(); | |
246 | if (*request_buf == NULL) { | |
247 | /* BB should we add a retry in here if not a writepage? */ | |
248 | return -ENOMEM; | |
249 | } | |
250 | ||
63135e08 | 251 | header_assemble((struct smb_hdr *) *request_buf, smb_command, |
c18c842b | 252 | tcon, wct); |
1da177e4 | 253 | |
790fe579 SF |
254 | if (tcon != NULL) |
255 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 256 | |
1da177e4 | 257 | return rc; |
5815449d SF |
258 | } |
259 | ||
12b3b8ff | 260 | int |
50c2f753 | 261 | small_smb_init_no_tc(const int smb_command, const int wct, |
5815449d | 262 | struct cifsSesInfo *ses, void **request_buf) |
12b3b8ff SF |
263 | { |
264 | int rc; | |
50c2f753 | 265 | struct smb_hdr *buffer; |
12b3b8ff | 266 | |
5815449d | 267 | rc = small_smb_init(smb_command, wct, NULL, request_buf); |
790fe579 | 268 | if (rc) |
12b3b8ff SF |
269 | return rc; |
270 | ||
04fdabe1 | 271 | buffer = (struct smb_hdr *)*request_buf; |
12b3b8ff SF |
272 | buffer->Mid = GetNextMid(ses->server); |
273 | if (ses->capabilities & CAP_UNICODE) | |
274 | buffer->Flags2 |= SMBFLG2_UNICODE; | |
04fdabe1 | 275 | if (ses->capabilities & CAP_STATUS32) |
12b3b8ff SF |
276 | buffer->Flags2 |= SMBFLG2_ERR_STATUS; |
277 | ||
278 | /* uid, tid can stay at zero as set in header assemble */ | |
279 | ||
50c2f753 | 280 | /* BB add support for turning on the signing when |
12b3b8ff SF |
281 | this function is used after 1st of session setup requests */ |
282 | ||
283 | return rc; | |
284 | } | |
1da177e4 LT |
285 | |
286 | /* If the return code is zero, this function must fill in request_buf pointer */ | |
287 | static int | |
288 | smb_init(int smb_command, int wct, struct cifsTconInfo *tcon, | |
289 | void **request_buf /* returned */ , | |
290 | void **response_buf /* returned */ ) | |
291 | { | |
292 | int rc = 0; | |
293 | ||
294 | /* SMBs NegProt, SessSetup, uLogoff do not have tcon yet so | |
295 | check for tcp and smb session status done differently | |
296 | for those three - in the calling routine */ | |
790fe579 | 297 | if (tcon) { |
bfb59820 | 298 | if (tcon->tidStatus == CifsExiting) { |
6ab16d24 SF |
299 | /* only tree disconnect, open, and write, |
300 | (and ulogoff which does not have tcon) | |
301 | are allowed as we start force umount */ | |
790fe579 | 302 | if ((smb_command != SMB_COM_WRITE_ANDX) && |
6ab16d24 SF |
303 | (smb_command != SMB_COM_OPEN_ANDX) && |
304 | (smb_command != SMB_COM_TREE_DISCONNECT)) { | |
790fe579 | 305 | cFYI(1, ("can not send cmd %d while umounting", |
6ab16d24 SF |
306 | smb_command)); |
307 | return -ENODEV; | |
308 | } | |
309 | } | |
310 | ||
790fe579 | 311 | if ((tcon->ses) && (tcon->ses->status != CifsExiting) && |
50c2f753 | 312 | (tcon->ses->server)) { |
1da177e4 | 313 | struct nls_table *nls_codepage; |
09d1db5c SF |
314 | /* Give Demultiplex thread up to 10 seconds to |
315 | reconnect, should be greater than cifs socket | |
316 | timeout which is 7 seconds */ | |
63135e08 SF |
317 | while (tcon->ses->server->tcpStatus == |
318 | CifsNeedReconnect) { | |
1da177e4 | 319 | wait_event_interruptible_timeout(tcon->ses->server->response_q, |
63135e08 SF |
320 | (tcon->ses->server->tcpStatus == |
321 | CifsGood), 10 * HZ); | |
790fe579 | 322 | if (tcon->ses->server->tcpStatus == |
09d1db5c | 323 | CifsNeedReconnect) { |
1da177e4 | 324 | /* on "soft" mounts we wait once */ |
4b18f2a9 | 325 | if (!tcon->retry || |
1da177e4 | 326 | (tcon->ses->status == CifsExiting)) { |
50c2f753 SF |
327 | cFYI(1, ("gave up waiting on " |
328 | "reconnect in smb_init")); | |
1da177e4 | 329 | return -EHOSTDOWN; |
09d1db5c SF |
330 | } /* else "hard" mount - keep retrying |
331 | until process is killed or server | |
332 | comes on-line */ | |
1da177e4 LT |
333 | } else /* TCP session is reestablished now */ |
334 | break; | |
1da177e4 | 335 | } |
1da177e4 LT |
336 | nls_codepage = load_nls_default(); |
337 | /* need to prevent multiple threads trying to | |
338 | simultaneously reconnect the same SMB session */ | |
339 | down(&tcon->ses->sesSem); | |
3b795210 | 340 | if (tcon->ses->need_reconnect) |
50c2f753 | 341 | rc = cifs_setup_session(0, tcon->ses, |
09d1db5c | 342 | nls_codepage); |
3b795210 | 343 | if (!rc && (tcon->need_reconnect)) { |
1da177e4 | 344 | mark_open_files_invalid(tcon); |
09d1db5c SF |
345 | rc = CIFSTCon(0, tcon->ses, tcon->treeName, |
346 | tcon, nls_codepage); | |
1da177e4 | 347 | up(&tcon->ses->sesSem); |
3e84469d SF |
348 | /* BB FIXME add code to check if wsize needs |
349 | update due to negotiated smb buffer size | |
350 | shrinking */ | |
35028d71 | 351 | if (rc == 0) { |
1da177e4 | 352 | atomic_inc(&tconInfoReconnectCount); |
35028d71 SF |
353 | /* tell server Unix caps we support */ |
354 | if (tcon->ses->capabilities & CAP_UNIX) | |
355 | reset_cifs_unix_caps( | |
356 | 0 /* no xid */, | |
357 | tcon, | |
358 | NULL /* do not know sb */, | |
359 | NULL /* no vol info */); | |
360 | } | |
1da177e4 LT |
361 | |
362 | cFYI(1, ("reconnect tcon rc = %d", rc)); | |
50c2f753 SF |
363 | /* Removed call to reopen open files here. |
364 | It is safer (and faster) to reopen files | |
09d1db5c | 365 | one at a time as needed in read and write */ |
1da177e4 | 366 | |
50c2f753 | 367 | /* Check if handle based operation so we |
09d1db5c SF |
368 | know whether we can continue or not without |
369 | returning to caller to reset file handle */ | |
50c2f753 | 370 | switch (smb_command) { |
1da177e4 LT |
371 | case SMB_COM_READ_ANDX: |
372 | case SMB_COM_WRITE_ANDX: | |
373 | case SMB_COM_CLOSE: | |
374 | case SMB_COM_FIND_CLOSE2: | |
375 | case SMB_COM_LOCKING_ANDX: { | |
376 | unload_nls(nls_codepage); | |
377 | return -EAGAIN; | |
378 | } | |
379 | } | |
380 | } else { | |
381 | up(&tcon->ses->sesSem); | |
382 | } | |
383 | unload_nls(nls_codepage); | |
384 | ||
385 | } else { | |
386 | return -EIO; | |
387 | } | |
388 | } | |
790fe579 | 389 | if (rc) |
1da177e4 LT |
390 | return rc; |
391 | ||
392 | *request_buf = cifs_buf_get(); | |
393 | if (*request_buf == NULL) { | |
394 | /* BB should we add a retry in here if not a writepage? */ | |
395 | return -ENOMEM; | |
396 | } | |
397 | /* Although the original thought was we needed the response buf for */ | |
398 | /* potential retries of smb operations it turns out we can determine */ | |
399 | /* from the mid flags when the request buffer can be resent without */ | |
400 | /* having to use a second distinct buffer for the response */ | |
790fe579 | 401 | if (response_buf) |
50c2f753 | 402 | *response_buf = *request_buf; |
1da177e4 LT |
403 | |
404 | header_assemble((struct smb_hdr *) *request_buf, smb_command, tcon, | |
ad7a2926 | 405 | wct); |
1da177e4 | 406 | |
790fe579 SF |
407 | if (tcon != NULL) |
408 | cifs_stats_inc(&tcon->num_smbs_sent); | |
a4544347 | 409 | |
1da177e4 LT |
410 | return rc; |
411 | } | |
412 | ||
50c2f753 | 413 | static int validate_t2(struct smb_t2_rsp *pSMB) |
1da177e4 LT |
414 | { |
415 | int rc = -EINVAL; | |
416 | int total_size; | |
50c2f753 | 417 | char *pBCC; |
1da177e4 LT |
418 | |
419 | /* check for plausible wct, bcc and t2 data and parm sizes */ | |
420 | /* check for parm and data offset going beyond end of smb */ | |
790fe579 SF |
421 | if (pSMB->hdr.WordCount >= 10) { |
422 | if ((le16_to_cpu(pSMB->t2_rsp.ParameterOffset) <= 1024) && | |
1da177e4 LT |
423 | (le16_to_cpu(pSMB->t2_rsp.DataOffset) <= 1024)) { |
424 | /* check that bcc is at least as big as parms + data */ | |
425 | /* check that bcc is less than negotiated smb buffer */ | |
426 | total_size = le16_to_cpu(pSMB->t2_rsp.ParameterCount); | |
790fe579 | 427 | if (total_size < 512) { |
c18c842b | 428 | total_size += |
63135e08 | 429 | le16_to_cpu(pSMB->t2_rsp.DataCount); |
1da177e4 | 430 | /* BCC le converted in SendReceive */ |
50c2f753 | 431 | pBCC = (pSMB->hdr.WordCount * 2) + |
09d1db5c | 432 | sizeof(struct smb_hdr) + |
1da177e4 | 433 | (char *)pSMB; |
790fe579 | 434 | if ((total_size <= (*(u16 *)pBCC)) && |
50c2f753 | 435 | (total_size < |
1da177e4 LT |
436 | CIFSMaxBufSize+MAX_CIFS_HDR_SIZE)) { |
437 | return 0; | |
438 | } | |
1da177e4 LT |
439 | } |
440 | } | |
441 | } | |
50c2f753 | 442 | cifs_dump_mem("Invalid transact2 SMB: ", (char *)pSMB, |
1da177e4 LT |
443 | sizeof(struct smb_t2_rsp) + 16); |
444 | return rc; | |
445 | } | |
446 | int | |
447 | CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses) | |
448 | { | |
449 | NEGOTIATE_REQ *pSMB; | |
450 | NEGOTIATE_RSP *pSMBr; | |
451 | int rc = 0; | |
452 | int bytes_returned; | |
3979877e | 453 | int i; |
50c2f753 | 454 | struct TCP_Server_Info *server; |
1da177e4 | 455 | u16 count; |
750d1151 | 456 | unsigned int secFlags; |
733f99ac | 457 | u16 dialect; |
1da177e4 | 458 | |
790fe579 | 459 | if (ses->server) |
1da177e4 LT |
460 | server = ses->server; |
461 | else { | |
462 | rc = -EIO; | |
463 | return rc; | |
464 | } | |
465 | rc = smb_init(SMB_COM_NEGOTIATE, 0, NULL /* no tcon yet */ , | |
466 | (void **) &pSMB, (void **) &pSMBr); | |
467 | if (rc) | |
468 | return rc; | |
750d1151 SF |
469 | |
470 | /* if any of auth flags (ie not sign or seal) are overriden use them */ | |
790fe579 | 471 | if (ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL))) |
762e5ab7 | 472 | secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */ |
750d1151 SF |
473 | else /* if override flags set only sign/seal OR them with global auth */ |
474 | secFlags = extended_security | ses->overrideSecFlg; | |
475 | ||
762e5ab7 | 476 | cFYI(1, ("secFlags 0x%x", secFlags)); |
f40c5628 | 477 | |
1982c344 | 478 | pSMB->hdr.Mid = GetNextMid(server); |
100c1ddc | 479 | pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS); |
a013689d | 480 | |
100c1ddc | 481 | if ((secFlags & CIFSSEC_MUST_KRB5) == CIFSSEC_MUST_KRB5) |
254e55ed | 482 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; |
a013689d SF |
483 | else if ((secFlags & CIFSSEC_AUTH_MASK) == CIFSSEC_MAY_KRB5) { |
484 | cFYI(1, ("Kerberos only mechanism, enable extended security")); | |
485 | pSMB->hdr.Flags2 |= SMBFLG2_EXT_SEC; | |
486 | } | |
50c2f753 | 487 | |
3979877e | 488 | count = 0; |
50c2f753 | 489 | for (i = 0; i < CIFS_NUM_PROT; i++) { |
3979877e SF |
490 | strncpy(pSMB->DialectsArray+count, protocols[i].name, 16); |
491 | count += strlen(protocols[i].name) + 1; | |
492 | /* null at end of source and target buffers anyway */ | |
493 | } | |
1da177e4 LT |
494 | pSMB->hdr.smb_buf_length += count; |
495 | pSMB->ByteCount = cpu_to_le16(count); | |
496 | ||
497 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
498 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
50c2f753 | 499 | if (rc != 0) |
254e55ed SF |
500 | goto neg_err_exit; |
501 | ||
733f99ac | 502 | dialect = le16_to_cpu(pSMBr->DialectIndex); |
790fe579 | 503 | cFYI(1, ("Dialect: %d", dialect)); |
254e55ed | 504 | /* Check wct = 1 error case */ |
790fe579 | 505 | if ((pSMBr->hdr.WordCount < 13) || (dialect == BAD_PROT)) { |
254e55ed | 506 | /* core returns wct = 1, but we do not ask for core - otherwise |
50c2f753 | 507 | small wct just comes when dialect index is -1 indicating we |
254e55ed SF |
508 | could not negotiate a common dialect */ |
509 | rc = -EOPNOTSUPP; | |
510 | goto neg_err_exit; | |
50c2f753 | 511 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
790fe579 | 512 | } else if ((pSMBr->hdr.WordCount == 13) |
733f99ac AV |
513 | && ((dialect == LANMAN_PROT) |
514 | || (dialect == LANMAN2_PROT))) { | |
b815f1e5 | 515 | __s16 tmp; |
50c2f753 | 516 | struct lanman_neg_rsp *rsp = (struct lanman_neg_rsp *)pSMBr; |
254e55ed | 517 | |
790fe579 | 518 | if ((secFlags & CIFSSEC_MAY_LANMAN) || |
750d1151 | 519 | (secFlags & CIFSSEC_MAY_PLNTXT)) |
254e55ed SF |
520 | server->secType = LANMAN; |
521 | else { | |
522 | cERROR(1, ("mount failed weak security disabled" | |
523 | " in /proc/fs/cifs/SecurityFlags")); | |
3979877e SF |
524 | rc = -EOPNOTSUPP; |
525 | goto neg_err_exit; | |
50c2f753 | 526 | } |
254e55ed SF |
527 | server->secMode = (__u8)le16_to_cpu(rsp->SecurityMode); |
528 | server->maxReq = le16_to_cpu(rsp->MaxMpxCount); | |
529 | server->maxBuf = min((__u32)le16_to_cpu(rsp->MaxBufSize), | |
3979877e | 530 | (__u32)CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 531 | server->max_vcs = le16_to_cpu(rsp->MaxNumberVcs); |
254e55ed SF |
532 | GETU32(server->sessid) = le32_to_cpu(rsp->SessionKey); |
533 | /* even though we do not use raw we might as well set this | |
534 | accurately, in case we ever find a need for it */ | |
790fe579 | 535 | if ((le16_to_cpu(rsp->RawMode) & RAW_ENABLE) == RAW_ENABLE) { |
eca6acf9 | 536 | server->max_rw = 0xFF00; |
254e55ed SF |
537 | server->capabilities = CAP_MPX_MODE | CAP_RAW_MODE; |
538 | } else { | |
eca6acf9 | 539 | server->max_rw = 0;/* do not need to use raw anyway */ |
254e55ed SF |
540 | server->capabilities = CAP_MPX_MODE; |
541 | } | |
b815f1e5 | 542 | tmp = (__s16)le16_to_cpu(rsp->ServerTimeZone); |
1a70d652 | 543 | if (tmp == -1) { |
25ee4a98 SF |
544 | /* OS/2 often does not set timezone therefore |
545 | * we must use server time to calc time zone. | |
b815f1e5 SF |
546 | * Could deviate slightly from the right zone. |
547 | * Smallest defined timezone difference is 15 minutes | |
548 | * (i.e. Nepal). Rounding up/down is done to match | |
549 | * this requirement. | |
25ee4a98 | 550 | */ |
b815f1e5 | 551 | int val, seconds, remain, result; |
25ee4a98 SF |
552 | struct timespec ts, utc; |
553 | utc = CURRENT_TIME; | |
554 | ts = cnvrtDosUnixTm(le16_to_cpu(rsp->SrvTime.Date), | |
555 | le16_to_cpu(rsp->SrvTime.Time)); | |
50c2f753 SF |
556 | cFYI(1, ("SrvTime %d sec since 1970 (utc: %d) diff: %d", |
557 | (int)ts.tv_sec, (int)utc.tv_sec, | |
25ee4a98 | 558 | (int)(utc.tv_sec - ts.tv_sec))); |
b815f1e5 | 559 | val = (int)(utc.tv_sec - ts.tv_sec); |
8594c15a | 560 | seconds = abs(val); |
947a5067 | 561 | result = (seconds / MIN_TZ_ADJ) * MIN_TZ_ADJ; |
b815f1e5 | 562 | remain = seconds % MIN_TZ_ADJ; |
790fe579 | 563 | if (remain >= (MIN_TZ_ADJ / 2)) |
b815f1e5 | 564 | result += MIN_TZ_ADJ; |
790fe579 | 565 | if (val < 0) |
ad7a2926 | 566 | result = -result; |
b815f1e5 | 567 | server->timeAdj = result; |
25ee4a98 | 568 | } else { |
b815f1e5 SF |
569 | server->timeAdj = (int)tmp; |
570 | server->timeAdj *= 60; /* also in seconds */ | |
25ee4a98 | 571 | } |
790fe579 | 572 | cFYI(1, ("server->timeAdj: %d seconds", server->timeAdj)); |
25ee4a98 | 573 | |
3979877e | 574 | |
254e55ed | 575 | /* BB get server time for time conversions and add |
50c2f753 | 576 | code to use it and timezone since this is not UTC */ |
3979877e | 577 | |
50c2f753 | 578 | if (rsp->EncryptionKeyLength == |
25ee4a98 | 579 | cpu_to_le16(CIFS_CRYPTO_KEY_SIZE)) { |
254e55ed SF |
580 | memcpy(server->cryptKey, rsp->EncryptionKey, |
581 | CIFS_CRYPTO_KEY_SIZE); | |
582 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
583 | rc = -EIO; /* need cryptkey unless plain text */ | |
584 | goto neg_err_exit; | |
585 | } | |
3979877e | 586 | |
790fe579 | 587 | cFYI(1, ("LANMAN negotiated")); |
254e55ed SF |
588 | /* we will not end up setting signing flags - as no signing |
589 | was in LANMAN and server did not return the flags on */ | |
590 | goto signing_check; | |
7c7b25bc | 591 | #else /* weak security disabled */ |
790fe579 | 592 | } else if (pSMBr->hdr.WordCount == 13) { |
50c2f753 | 593 | cERROR(1, ("mount failed, cifs module not built " |
254e55ed | 594 | "with CIFS_WEAK_PW_HASH support")); |
7c7b25bc SF |
595 | rc = -EOPNOTSUPP; |
596 | #endif /* WEAK_PW_HASH */ | |
254e55ed | 597 | goto neg_err_exit; |
790fe579 | 598 | } else if (pSMBr->hdr.WordCount != 17) { |
254e55ed SF |
599 | /* unknown wct */ |
600 | rc = -EOPNOTSUPP; | |
601 | goto neg_err_exit; | |
602 | } | |
603 | /* else wct == 17 NTLM */ | |
604 | server->secMode = pSMBr->SecurityMode; | |
790fe579 SF |
605 | if ((server->secMode & SECMODE_USER) == 0) |
606 | cFYI(1, ("share mode security")); | |
bdc4bf6e | 607 | |
790fe579 | 608 | if ((server->secMode & SECMODE_PW_ENCRYPT) == 0) |
bdc4bf6e | 609 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
750d1151 | 610 | if ((secFlags & CIFSSEC_MAY_PLNTXT) == 0) |
bdc4bf6e | 611 | #endif /* CIFS_WEAK_PW_HASH */ |
50c2f753 | 612 | cERROR(1, ("Server requests plain text password" |
254e55ed | 613 | " but client support disabled")); |
9312f675 | 614 | |
790fe579 | 615 | if ((secFlags & CIFSSEC_MUST_NTLMV2) == CIFSSEC_MUST_NTLMV2) |
254e55ed | 616 | server->secType = NTLMv2; |
790fe579 | 617 | else if (secFlags & CIFSSEC_MAY_NTLM) |
254e55ed | 618 | server->secType = NTLM; |
790fe579 | 619 | else if (secFlags & CIFSSEC_MAY_NTLMV2) |
f40c5628 | 620 | server->secType = NTLMv2; |
a013689d SF |
621 | else if (secFlags & CIFSSEC_MAY_KRB5) |
622 | server->secType = Kerberos; | |
623 | else if (secFlags & CIFSSEC_MAY_LANMAN) | |
624 | server->secType = LANMAN; | |
625 | /* #ifdef CONFIG_CIFS_EXPERIMENTAL | |
626 | else if (secFlags & CIFSSEC_MAY_PLNTXT) | |
627 | server->secType = ?? | |
628 | #endif */ | |
629 | else { | |
630 | rc = -EOPNOTSUPP; | |
631 | cERROR(1, ("Invalid security type")); | |
632 | goto neg_err_exit; | |
633 | } | |
634 | /* else ... any others ...? */ | |
254e55ed SF |
635 | |
636 | /* one byte, so no need to convert this or EncryptionKeyLen from | |
637 | little endian */ | |
638 | server->maxReq = le16_to_cpu(pSMBr->MaxMpxCount); | |
639 | /* probably no need to store and check maxvcs */ | |
640 | server->maxBuf = min(le32_to_cpu(pSMBr->MaxBufferSize), | |
1da177e4 | 641 | (__u32) CIFSMaxBufSize + MAX_CIFS_HDR_SIZE); |
eca6acf9 | 642 | server->max_rw = le32_to_cpu(pSMBr->MaxRawSize); |
90c81e0b | 643 | cFYI(DBG2, ("Max buf = %d", ses->server->maxBuf)); |
254e55ed SF |
644 | GETU32(ses->server->sessid) = le32_to_cpu(pSMBr->SessionKey); |
645 | server->capabilities = le32_to_cpu(pSMBr->Capabilities); | |
b815f1e5 SF |
646 | server->timeAdj = (int)(__s16)le16_to_cpu(pSMBr->ServerTimeZone); |
647 | server->timeAdj *= 60; | |
254e55ed SF |
648 | if (pSMBr->EncryptionKeyLength == CIFS_CRYPTO_KEY_SIZE) { |
649 | memcpy(server->cryptKey, pSMBr->u.EncryptionKey, | |
650 | CIFS_CRYPTO_KEY_SIZE); | |
651 | } else if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) | |
652 | && (pSMBr->EncryptionKeyLength == 0)) { | |
653 | /* decode security blob */ | |
654 | } else if (server->secMode & SECMODE_PW_ENCRYPT) { | |
655 | rc = -EIO; /* no crypt key only if plain text pwd */ | |
656 | goto neg_err_exit; | |
657 | } | |
1da177e4 | 658 | |
254e55ed SF |
659 | /* BB might be helpful to save off the domain of server here */ |
660 | ||
50c2f753 | 661 | if ((pSMBr->hdr.Flags2 & SMBFLG2_EXT_SEC) && |
254e55ed SF |
662 | (server->capabilities & CAP_EXTENDED_SECURITY)) { |
663 | count = pSMBr->ByteCount; | |
e187e44e | 664 | if (count < 16) { |
254e55ed | 665 | rc = -EIO; |
e187e44e JL |
666 | goto neg_err_exit; |
667 | } | |
e7ddee90 JL |
668 | read_lock(&cifs_tcp_ses_lock); |
669 | if (server->srv_count > 1) { | |
670 | read_unlock(&cifs_tcp_ses_lock); | |
e187e44e JL |
671 | if (memcmp(server->server_GUID, |
672 | pSMBr->u.extended_response. | |
673 | GUID, 16) != 0) { | |
674 | cFYI(1, ("server UID changed")); | |
254e55ed | 675 | memcpy(server->server_GUID, |
e187e44e JL |
676 | pSMBr->u.extended_response.GUID, |
677 | 16); | |
678 | } | |
e7ddee90 JL |
679 | } else { |
680 | read_unlock(&cifs_tcp_ses_lock); | |
e187e44e JL |
681 | memcpy(server->server_GUID, |
682 | pSMBr->u.extended_response.GUID, 16); | |
e7ddee90 | 683 | } |
e187e44e JL |
684 | |
685 | if (count == 16) { | |
686 | server->secType = RawNTLMSSP; | |
254e55ed SF |
687 | } else { |
688 | rc = decode_negTokenInit(pSMBr->u.extended_response. | |
689 | SecurityBlob, | |
690 | count - 16, | |
691 | &server->secType); | |
ef571cad | 692 | if (rc == 1) |
e545937a | 693 | rc = 0; |
ef571cad | 694 | else |
254e55ed | 695 | rc = -EINVAL; |
1da177e4 | 696 | } |
254e55ed SF |
697 | } else |
698 | server->capabilities &= ~CAP_EXTENDED_SECURITY; | |
699 | ||
6344a423 | 700 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
254e55ed | 701 | signing_check: |
6344a423 | 702 | #endif |
762e5ab7 SF |
703 | if ((secFlags & CIFSSEC_MAY_SIGN) == 0) { |
704 | /* MUST_SIGN already includes the MAY_SIGN FLAG | |
705 | so if this is zero it means that signing is disabled */ | |
706 | cFYI(1, ("Signing disabled")); | |
abb63d6c | 707 | if (server->secMode & SECMODE_SIGN_REQUIRED) { |
762e5ab7 | 708 | cERROR(1, ("Server requires " |
7111d214 JL |
709 | "packet signing to be enabled in " |
710 | "/proc/fs/cifs/SecurityFlags.")); | |
abb63d6c SF |
711 | rc = -EOPNOTSUPP; |
712 | } | |
50c2f753 | 713 | server->secMode &= |
254e55ed | 714 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
762e5ab7 SF |
715 | } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) { |
716 | /* signing required */ | |
38c10a1d | 717 | cFYI(1, ("Must sign - secFlags 0x%x", secFlags)); |
762e5ab7 SF |
718 | if ((server->secMode & |
719 | (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) { | |
720 | cERROR(1, | |
721 | ("signing required but server lacks support")); | |
38c10a1d | 722 | rc = -EOPNOTSUPP; |
762e5ab7 SF |
723 | } else |
724 | server->secMode |= SECMODE_SIGN_REQUIRED; | |
725 | } else { | |
726 | /* signing optional ie CIFSSEC_MAY_SIGN */ | |
790fe579 | 727 | if ((server->secMode & SECMODE_SIGN_REQUIRED) == 0) |
50c2f753 | 728 | server->secMode &= |
254e55ed | 729 | ~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED); |
1da177e4 | 730 | } |
50c2f753 SF |
731 | |
732 | neg_err_exit: | |
4a6d87f1 | 733 | cifs_buf_release(pSMB); |
254e55ed | 734 | |
790fe579 | 735 | cFYI(1, ("negprot rc %d", rc)); |
1da177e4 LT |
736 | return rc; |
737 | } | |
738 | ||
739 | int | |
740 | CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon) | |
741 | { | |
742 | struct smb_hdr *smb_buffer; | |
1da177e4 | 743 | int rc = 0; |
1da177e4 LT |
744 | |
745 | cFYI(1, ("In tree disconnect")); | |
1da177e4 | 746 | |
f1987b44 JL |
747 | /* BB: do we need to check this? These should never be NULL. */ |
748 | if ((tcon->ses == NULL) || (tcon->ses->server == NULL)) | |
749 | return -EIO; | |
1da177e4 | 750 | |
f1987b44 JL |
751 | /* |
752 | * No need to return error on this operation if tid invalidated and | |
753 | * closed on server already e.g. due to tcp session crashing. Also, | |
754 | * the tcon is no longer on the list, so no need to take lock before | |
755 | * checking this. | |
756 | */ | |
757 | if (tcon->need_reconnect) | |
50c2f753 | 758 | return 0; |
1da177e4 | 759 | |
50c2f753 | 760 | rc = small_smb_init(SMB_COM_TREE_DISCONNECT, 0, tcon, |
09d1db5c | 761 | (void **)&smb_buffer); |
f1987b44 | 762 | if (rc) |
1da177e4 | 763 | return rc; |
133672ef SF |
764 | |
765 | rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0); | |
1da177e4 | 766 | if (rc) |
966ca923 | 767 | cFYI(1, ("Tree disconnect failed %d", rc)); |
1da177e4 | 768 | |
50c2f753 | 769 | /* No need to return error on this operation if tid invalidated and |
f1987b44 | 770 | closed on server already e.g. due to tcp session crashing */ |
1da177e4 LT |
771 | if (rc == -EAGAIN) |
772 | rc = 0; | |
773 | ||
774 | return rc; | |
775 | } | |
776 | ||
777 | int | |
778 | CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses) | |
779 | { | |
1da177e4 LT |
780 | LOGOFF_ANDX_REQ *pSMB; |
781 | int rc = 0; | |
1da177e4 LT |
782 | |
783 | cFYI(1, ("In SMBLogoff for session disconnect")); | |
3b795210 | 784 | |
14fbf50d JL |
785 | /* |
786 | * BB: do we need to check validity of ses and server? They should | |
787 | * always be valid since we have an active reference. If not, that | |
788 | * should probably be a BUG() | |
789 | */ | |
790 | if (!ses || !ses->server) | |
3b795210 SF |
791 | return -EIO; |
792 | ||
14fbf50d | 793 | down(&ses->sesSem); |
3b795210 SF |
794 | if (ses->need_reconnect) |
795 | goto session_already_dead; /* no need to send SMBlogoff if uid | |
796 | already closed due to reconnect */ | |
1da177e4 LT |
797 | rc = small_smb_init(SMB_COM_LOGOFF_ANDX, 2, NULL, (void **)&pSMB); |
798 | if (rc) { | |
799 | up(&ses->sesSem); | |
800 | return rc; | |
801 | } | |
802 | ||
3b795210 | 803 | pSMB->hdr.Mid = GetNextMid(ses->server); |
1982c344 | 804 | |
3b795210 | 805 | if (ses->server->secMode & |
1da177e4 LT |
806 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
807 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
1da177e4 LT |
808 | |
809 | pSMB->hdr.Uid = ses->Suid; | |
810 | ||
811 | pSMB->AndXCommand = 0xFF; | |
133672ef | 812 | rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0); |
3b795210 | 813 | session_already_dead: |
a59c6586 | 814 | up(&ses->sesSem); |
1da177e4 LT |
815 | |
816 | /* if session dead then we do not need to do ulogoff, | |
50c2f753 | 817 | since server closed smb session, no sense reporting |
1da177e4 LT |
818 | error */ |
819 | if (rc == -EAGAIN) | |
820 | rc = 0; | |
821 | return rc; | |
822 | } | |
823 | ||
2d785a50 SF |
824 | int |
825 | CIFSPOSIXDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
826 | __u16 type, const struct nls_table *nls_codepage, int remap) | |
827 | { | |
828 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
829 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
830 | struct unlink_psx_rq *pRqD; | |
831 | int name_len; | |
832 | int rc = 0; | |
833 | int bytes_returned = 0; | |
834 | __u16 params, param_offset, offset, byte_count; | |
835 | ||
836 | cFYI(1, ("In POSIX delete")); | |
837 | PsxDelete: | |
838 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
839 | (void **) &pSMBr); | |
840 | if (rc) | |
841 | return rc; | |
842 | ||
843 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
844 | name_len = | |
845 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, | |
846 | PATH_MAX, nls_codepage, remap); | |
847 | name_len++; /* trailing null */ | |
848 | name_len *= 2; | |
849 | } else { /* BB add path length overrun check */ | |
850 | name_len = strnlen(fileName, PATH_MAX); | |
851 | name_len++; /* trailing null */ | |
852 | strncpy(pSMB->FileName, fileName, name_len); | |
853 | } | |
854 | ||
855 | params = 6 + name_len; | |
856 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
857 | pSMB->MaxDataCount = 0; /* BB double check this with jra */ | |
858 | pSMB->MaxSetupCount = 0; | |
859 | pSMB->Reserved = 0; | |
860 | pSMB->Flags = 0; | |
861 | pSMB->Timeout = 0; | |
862 | pSMB->Reserved2 = 0; | |
863 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
864 | InformationLevel) - 4; | |
865 | offset = param_offset + params; | |
866 | ||
867 | /* Setup pointer to Request Data (inode type) */ | |
868 | pRqD = (struct unlink_psx_rq *)(((char *)&pSMB->hdr.Protocol) + offset); | |
869 | pRqD->type = cpu_to_le16(type); | |
870 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
871 | pSMB->DataOffset = cpu_to_le16(offset); | |
872 | pSMB->SetupCount = 1; | |
873 | pSMB->Reserved3 = 0; | |
874 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
875 | byte_count = 3 /* pad */ + params + sizeof(struct unlink_psx_rq); | |
876 | ||
877 | pSMB->DataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
878 | pSMB->TotalDataCount = cpu_to_le16(sizeof(struct unlink_psx_rq)); | |
879 | pSMB->ParameterCount = cpu_to_le16(params); | |
880 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
881 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_UNLINK); | |
882 | pSMB->Reserved4 = 0; | |
883 | pSMB->hdr.smb_buf_length += byte_count; | |
884 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
885 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
886 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 887 | if (rc) |
2d785a50 | 888 | cFYI(1, ("Posix delete returned %d", rc)); |
2d785a50 SF |
889 | cifs_buf_release(pSMB); |
890 | ||
891 | cifs_stats_inc(&tcon->num_deletes); | |
892 | ||
893 | if (rc == -EAGAIN) | |
894 | goto PsxDelete; | |
895 | ||
896 | return rc; | |
897 | } | |
898 | ||
1da177e4 | 899 | int |
737b758c SF |
900 | CIFSSMBDelFile(const int xid, struct cifsTconInfo *tcon, const char *fileName, |
901 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
902 | { |
903 | DELETE_FILE_REQ *pSMB = NULL; | |
904 | DELETE_FILE_RSP *pSMBr = NULL; | |
905 | int rc = 0; | |
906 | int bytes_returned; | |
907 | int name_len; | |
908 | ||
909 | DelFileRetry: | |
910 | rc = smb_init(SMB_COM_DELETE, 1, tcon, (void **) &pSMB, | |
911 | (void **) &pSMBr); | |
912 | if (rc) | |
913 | return rc; | |
914 | ||
915 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
916 | name_len = | |
50c2f753 | 917 | cifsConvertToUCS((__le16 *) pSMB->fileName, fileName, |
737b758c | 918 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
919 | name_len++; /* trailing null */ |
920 | name_len *= 2; | |
09d1db5c | 921 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
922 | name_len = strnlen(fileName, PATH_MAX); |
923 | name_len++; /* trailing null */ | |
924 | strncpy(pSMB->fileName, fileName, name_len); | |
925 | } | |
926 | pSMB->SearchAttributes = | |
927 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM); | |
928 | pSMB->BufferFormat = 0x04; | |
929 | pSMB->hdr.smb_buf_length += name_len + 1; | |
930 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
931 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
932 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 933 | cifs_stats_inc(&tcon->num_deletes); |
ad7a2926 | 934 | if (rc) |
1da177e4 | 935 | cFYI(1, ("Error in RMFile = %d", rc)); |
1da177e4 LT |
936 | |
937 | cifs_buf_release(pSMB); | |
938 | if (rc == -EAGAIN) | |
939 | goto DelFileRetry; | |
940 | ||
941 | return rc; | |
942 | } | |
943 | ||
944 | int | |
50c2f753 | 945 | CIFSSMBRmDir(const int xid, struct cifsTconInfo *tcon, const char *dirName, |
737b758c | 946 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
947 | { |
948 | DELETE_DIRECTORY_REQ *pSMB = NULL; | |
949 | DELETE_DIRECTORY_RSP *pSMBr = NULL; | |
950 | int rc = 0; | |
951 | int bytes_returned; | |
952 | int name_len; | |
953 | ||
954 | cFYI(1, ("In CIFSSMBRmDir")); | |
955 | RmDirRetry: | |
956 | rc = smb_init(SMB_COM_DELETE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
957 | (void **) &pSMBr); | |
958 | if (rc) | |
959 | return rc; | |
960 | ||
961 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
737b758c SF |
962 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, dirName, |
963 | PATH_MAX, nls_codepage, remap); | |
1da177e4 LT |
964 | name_len++; /* trailing null */ |
965 | name_len *= 2; | |
09d1db5c | 966 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
967 | name_len = strnlen(dirName, PATH_MAX); |
968 | name_len++; /* trailing null */ | |
969 | strncpy(pSMB->DirName, dirName, name_len); | |
970 | } | |
971 | ||
972 | pSMB->BufferFormat = 0x04; | |
973 | pSMB->hdr.smb_buf_length += name_len + 1; | |
974 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
975 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
976 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 977 | cifs_stats_inc(&tcon->num_rmdirs); |
ad7a2926 | 978 | if (rc) |
1da177e4 | 979 | cFYI(1, ("Error in RMDir = %d", rc)); |
1da177e4 LT |
980 | |
981 | cifs_buf_release(pSMB); | |
982 | if (rc == -EAGAIN) | |
983 | goto RmDirRetry; | |
984 | return rc; | |
985 | } | |
986 | ||
987 | int | |
988 | CIFSSMBMkDir(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 989 | const char *name, const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
990 | { |
991 | int rc = 0; | |
992 | CREATE_DIRECTORY_REQ *pSMB = NULL; | |
993 | CREATE_DIRECTORY_RSP *pSMBr = NULL; | |
994 | int bytes_returned; | |
995 | int name_len; | |
996 | ||
997 | cFYI(1, ("In CIFSSMBMkDir")); | |
998 | MkDirRetry: | |
999 | rc = smb_init(SMB_COM_CREATE_DIRECTORY, 0, tcon, (void **) &pSMB, | |
1000 | (void **) &pSMBr); | |
1001 | if (rc) | |
1002 | return rc; | |
1003 | ||
1004 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 1005 | name_len = cifsConvertToUCS((__le16 *) pSMB->DirName, name, |
737b758c | 1006 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1007 | name_len++; /* trailing null */ |
1008 | name_len *= 2; | |
09d1db5c | 1009 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1010 | name_len = strnlen(name, PATH_MAX); |
1011 | name_len++; /* trailing null */ | |
1012 | strncpy(pSMB->DirName, name, name_len); | |
1013 | } | |
1014 | ||
1015 | pSMB->BufferFormat = 0x04; | |
1016 | pSMB->hdr.smb_buf_length += name_len + 1; | |
1017 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
1018 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1019 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1020 | cifs_stats_inc(&tcon->num_mkdirs); |
ad7a2926 | 1021 | if (rc) |
1da177e4 | 1022 | cFYI(1, ("Error in Mkdir = %d", rc)); |
a5a2b489 | 1023 | |
1da177e4 LT |
1024 | cifs_buf_release(pSMB); |
1025 | if (rc == -EAGAIN) | |
1026 | goto MkDirRetry; | |
1027 | return rc; | |
1028 | } | |
1029 | ||
2dd29d31 SF |
1030 | int |
1031 | CIFSPOSIXCreate(const int xid, struct cifsTconInfo *tcon, __u32 posix_flags, | |
ad7a2926 | 1032 | __u64 mode, __u16 *netfid, FILE_UNIX_BASIC_INFO *pRetData, |
50c2f753 | 1033 | __u32 *pOplock, const char *name, |
2dd29d31 SF |
1034 | const struct nls_table *nls_codepage, int remap) |
1035 | { | |
1036 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
1037 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
1038 | int name_len; | |
1039 | int rc = 0; | |
1040 | int bytes_returned = 0; | |
2dd29d31 | 1041 | __u16 params, param_offset, offset, byte_count, count; |
ad7a2926 SF |
1042 | OPEN_PSX_REQ *pdata; |
1043 | OPEN_PSX_RSP *psx_rsp; | |
2dd29d31 SF |
1044 | |
1045 | cFYI(1, ("In POSIX Create")); | |
1046 | PsxCreat: | |
1047 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
1048 | (void **) &pSMBr); | |
1049 | if (rc) | |
1050 | return rc; | |
1051 | ||
1052 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1053 | name_len = | |
1054 | cifsConvertToUCS((__le16 *) pSMB->FileName, name, | |
1055 | PATH_MAX, nls_codepage, remap); | |
1056 | name_len++; /* trailing null */ | |
1057 | name_len *= 2; | |
1058 | } else { /* BB improve the check for buffer overruns BB */ | |
1059 | name_len = strnlen(name, PATH_MAX); | |
1060 | name_len++; /* trailing null */ | |
1061 | strncpy(pSMB->FileName, name, name_len); | |
1062 | } | |
1063 | ||
1064 | params = 6 + name_len; | |
1065 | count = sizeof(OPEN_PSX_REQ); | |
1066 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
1067 | pSMB->MaxDataCount = cpu_to_le16(1000); /* large enough */ | |
1068 | pSMB->MaxSetupCount = 0; | |
1069 | pSMB->Reserved = 0; | |
1070 | pSMB->Flags = 0; | |
1071 | pSMB->Timeout = 0; | |
1072 | pSMB->Reserved2 = 0; | |
1073 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 1074 | InformationLevel) - 4; |
2dd29d31 | 1075 | offset = param_offset + params; |
2dd29d31 | 1076 | pdata = (OPEN_PSX_REQ *)(((char *)&pSMB->hdr.Protocol) + offset); |
8f2376ad | 1077 | pdata->Level = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); |
2dd29d31 | 1078 | pdata->Permissions = cpu_to_le64(mode); |
50c2f753 | 1079 | pdata->PosixOpenFlags = cpu_to_le32(posix_flags); |
2dd29d31 SF |
1080 | pdata->OpenFlags = cpu_to_le32(*pOplock); |
1081 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
1082 | pSMB->DataOffset = cpu_to_le16(offset); | |
1083 | pSMB->SetupCount = 1; | |
1084 | pSMB->Reserved3 = 0; | |
1085 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
1086 | byte_count = 3 /* pad */ + params + count; | |
1087 | ||
1088 | pSMB->DataCount = cpu_to_le16(count); | |
1089 | pSMB->ParameterCount = cpu_to_le16(params); | |
1090 | pSMB->TotalDataCount = pSMB->DataCount; | |
1091 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1092 | pSMB->InformationLevel = cpu_to_le16(SMB_POSIX_OPEN); | |
1093 | pSMB->Reserved4 = 0; | |
50c2f753 | 1094 | pSMB->hdr.smb_buf_length += byte_count; |
2dd29d31 SF |
1095 | pSMB->ByteCount = cpu_to_le16(byte_count); |
1096 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1097 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
1098 | if (rc) { | |
1099 | cFYI(1, ("Posix create returned %d", rc)); | |
1100 | goto psx_create_err; | |
1101 | } | |
1102 | ||
790fe579 | 1103 | cFYI(1, ("copying inode info")); |
2dd29d31 SF |
1104 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1105 | ||
1106 | if (rc || (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP))) { | |
1107 | rc = -EIO; /* bad smb */ | |
1108 | goto psx_create_err; | |
1109 | } | |
1110 | ||
1111 | /* copy return information to pRetData */ | |
50c2f753 | 1112 | psx_rsp = (OPEN_PSX_RSP *)((char *) &pSMBr->hdr.Protocol |
2dd29d31 | 1113 | + le16_to_cpu(pSMBr->t2.DataOffset)); |
50c2f753 | 1114 | |
2dd29d31 | 1115 | *pOplock = le16_to_cpu(psx_rsp->OplockFlags); |
790fe579 | 1116 | if (netfid) |
2dd29d31 SF |
1117 | *netfid = psx_rsp->Fid; /* cifs fid stays in le */ |
1118 | /* Let caller know file was created so we can set the mode. */ | |
1119 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1120 | if (cpu_to_le32(FILE_CREATE) == psx_rsp->CreateAction) |
2dd29d31 SF |
1121 | *pOplock |= CIFS_CREATE_ACTION; |
1122 | /* check to make sure response data is there */ | |
8f2376ad CG |
1123 | if (psx_rsp->ReturnedLevel != cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC)) { |
1124 | pRetData->Type = cpu_to_le32(-1); /* unknown */ | |
90c81e0b | 1125 | cFYI(DBG2, ("unknown type")); |
cbac3cba | 1126 | } else { |
790fe579 | 1127 | if (pSMBr->ByteCount < sizeof(OPEN_PSX_RSP) |
2dd29d31 | 1128 | + sizeof(FILE_UNIX_BASIC_INFO)) { |
50c2f753 | 1129 | cERROR(1, ("Open response data too small")); |
8f2376ad | 1130 | pRetData->Type = cpu_to_le32(-1); |
2dd29d31 SF |
1131 | goto psx_create_err; |
1132 | } | |
50c2f753 | 1133 | memcpy((char *) pRetData, |
cbac3cba | 1134 | (char *)psx_rsp + sizeof(OPEN_PSX_RSP), |
26f57364 | 1135 | sizeof(FILE_UNIX_BASIC_INFO)); |
2dd29d31 | 1136 | } |
2dd29d31 SF |
1137 | |
1138 | psx_create_err: | |
1139 | cifs_buf_release(pSMB); | |
1140 | ||
1141 | cifs_stats_inc(&tcon->num_mkdirs); | |
1142 | ||
1143 | if (rc == -EAGAIN) | |
1144 | goto PsxCreat; | |
1145 | ||
50c2f753 | 1146 | return rc; |
2dd29d31 SF |
1147 | } |
1148 | ||
a9d02ad4 SF |
1149 | static __u16 convert_disposition(int disposition) |
1150 | { | |
1151 | __u16 ofun = 0; | |
1152 | ||
1153 | switch (disposition) { | |
1154 | case FILE_SUPERSEDE: | |
1155 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1156 | break; | |
1157 | case FILE_OPEN: | |
1158 | ofun = SMBOPEN_OAPPEND; | |
1159 | break; | |
1160 | case FILE_CREATE: | |
1161 | ofun = SMBOPEN_OCREATE; | |
1162 | break; | |
1163 | case FILE_OPEN_IF: | |
1164 | ofun = SMBOPEN_OCREATE | SMBOPEN_OAPPEND; | |
1165 | break; | |
1166 | case FILE_OVERWRITE: | |
1167 | ofun = SMBOPEN_OTRUNC; | |
1168 | break; | |
1169 | case FILE_OVERWRITE_IF: | |
1170 | ofun = SMBOPEN_OCREATE | SMBOPEN_OTRUNC; | |
1171 | break; | |
1172 | default: | |
790fe579 | 1173 | cFYI(1, ("unknown disposition %d", disposition)); |
a9d02ad4 SF |
1174 | ofun = SMBOPEN_OAPPEND; /* regular open */ |
1175 | } | |
1176 | return ofun; | |
1177 | } | |
1178 | ||
35fc37d5 JL |
1179 | static int |
1180 | access_flags_to_smbopen_mode(const int access_flags) | |
1181 | { | |
1182 | int masked_flags = access_flags & (GENERIC_READ | GENERIC_WRITE); | |
1183 | ||
1184 | if (masked_flags == GENERIC_READ) | |
1185 | return SMBOPEN_READ; | |
1186 | else if (masked_flags == GENERIC_WRITE) | |
1187 | return SMBOPEN_WRITE; | |
1188 | ||
1189 | /* just go for read/write */ | |
1190 | return SMBOPEN_READWRITE; | |
1191 | } | |
1192 | ||
a9d02ad4 SF |
1193 | int |
1194 | SMBLegacyOpen(const int xid, struct cifsTconInfo *tcon, | |
1195 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1196 | const int access_flags, const int create_options, __u16 *netfid, |
1197 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
a9d02ad4 SF |
1198 | const struct nls_table *nls_codepage, int remap) |
1199 | { | |
1200 | int rc = -EACCES; | |
1201 | OPENX_REQ *pSMB = NULL; | |
1202 | OPENX_RSP *pSMBr = NULL; | |
1203 | int bytes_returned; | |
1204 | int name_len; | |
1205 | __u16 count; | |
1206 | ||
1207 | OldOpenRetry: | |
1208 | rc = smb_init(SMB_COM_OPEN_ANDX, 15, tcon, (void **) &pSMB, | |
1209 | (void **) &pSMBr); | |
1210 | if (rc) | |
1211 | return rc; | |
1212 | ||
1213 | pSMB->AndXCommand = 0xFF; /* none */ | |
1214 | ||
1215 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1216 | count = 1; /* account for one byte pad to word boundary */ | |
1217 | name_len = | |
1218 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), | |
1219 | fileName, PATH_MAX, nls_codepage, remap); | |
1220 | name_len++; /* trailing null */ | |
1221 | name_len *= 2; | |
1222 | } else { /* BB improve check for buffer overruns BB */ | |
1223 | count = 0; /* no pad */ | |
1224 | name_len = strnlen(fileName, PATH_MAX); | |
1225 | name_len++; /* trailing null */ | |
1226 | strncpy(pSMB->fileName, fileName, name_len); | |
1227 | } | |
1228 | if (*pOplock & REQ_OPLOCK) | |
1229 | pSMB->OpenFlags = cpu_to_le16(REQ_OPLOCK); | |
26f57364 | 1230 | else if (*pOplock & REQ_BATCHOPLOCK) |
a9d02ad4 | 1231 | pSMB->OpenFlags = cpu_to_le16(REQ_BATCHOPLOCK); |
26f57364 | 1232 | |
a9d02ad4 | 1233 | pSMB->OpenFlags |= cpu_to_le16(REQ_MORE_INFO); |
35fc37d5 | 1234 | pSMB->Mode = cpu_to_le16(access_flags_to_smbopen_mode(access_flags)); |
a9d02ad4 SF |
1235 | pSMB->Mode |= cpu_to_le16(0x40); /* deny none */ |
1236 | /* set file as system file if special file such | |
1237 | as fifo and server expecting SFU style and | |
1238 | no Unix extensions */ | |
1239 | ||
790fe579 SF |
1240 | if (create_options & CREATE_OPTION_SPECIAL) |
1241 | pSMB->FileAttributes = cpu_to_le16(ATTR_SYSTEM); | |
ad7a2926 SF |
1242 | else /* BB FIXME BB */ |
1243 | pSMB->FileAttributes = cpu_to_le16(0/*ATTR_NORMAL*/); | |
a9d02ad4 | 1244 | |
67750fb9 JL |
1245 | if (create_options & CREATE_OPTION_READONLY) |
1246 | pSMB->FileAttributes |= cpu_to_le16(ATTR_READONLY); | |
a9d02ad4 SF |
1247 | |
1248 | /* BB FIXME BB */ | |
50c2f753 SF |
1249 | /* pSMB->CreateOptions = cpu_to_le32(create_options & |
1250 | CREATE_OPTIONS_MASK); */ | |
a9d02ad4 | 1251 | /* BB FIXME END BB */ |
3e87d803 SF |
1252 | |
1253 | pSMB->Sattr = cpu_to_le16(ATTR_HIDDEN | ATTR_SYSTEM | ATTR_DIRECTORY); | |
70ca734a | 1254 | pSMB->OpenFunction = cpu_to_le16(convert_disposition(openDisposition)); |
a9d02ad4 SF |
1255 | count += name_len; |
1256 | pSMB->hdr.smb_buf_length += count; | |
1257 | ||
1258 | pSMB->ByteCount = cpu_to_le16(count); | |
1259 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1260 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1261 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a9d02ad4 SF |
1262 | cifs_stats_inc(&tcon->num_opens); |
1263 | if (rc) { | |
1264 | cFYI(1, ("Error in Open = %d", rc)); | |
1265 | } else { | |
1266 | /* BB verify if wct == 15 */ | |
1267 | ||
582d21e5 | 1268 | /* *pOplock = pSMBr->OplockLevel; */ /* BB take from action field*/ |
a9d02ad4 SF |
1269 | |
1270 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ | |
1271 | /* Let caller know file was created so we can set the mode. */ | |
1272 | /* Do we care about the CreateAction in any other cases? */ | |
1273 | /* BB FIXME BB */ | |
790fe579 | 1274 | /* if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
a9d02ad4 SF |
1275 | *pOplock |= CIFS_CREATE_ACTION; */ |
1276 | /* BB FIXME END */ | |
1277 | ||
790fe579 | 1278 | if (pfile_info) { |
a9d02ad4 SF |
1279 | pfile_info->CreationTime = 0; /* BB convert CreateTime*/ |
1280 | pfile_info->LastAccessTime = 0; /* BB fixme */ | |
1281 | pfile_info->LastWriteTime = 0; /* BB fixme */ | |
1282 | pfile_info->ChangeTime = 0; /* BB fixme */ | |
70ca734a | 1283 | pfile_info->Attributes = |
50c2f753 | 1284 | cpu_to_le32(le16_to_cpu(pSMBr->FileAttributes)); |
a9d02ad4 | 1285 | /* the file_info buf is endian converted by caller */ |
70ca734a SF |
1286 | pfile_info->AllocationSize = |
1287 | cpu_to_le64(le32_to_cpu(pSMBr->EndOfFile)); | |
1288 | pfile_info->EndOfFile = pfile_info->AllocationSize; | |
a9d02ad4 | 1289 | pfile_info->NumberOfLinks = cpu_to_le32(1); |
9a8165fc | 1290 | pfile_info->DeletePending = 0; |
a9d02ad4 SF |
1291 | } |
1292 | } | |
1293 | ||
1294 | cifs_buf_release(pSMB); | |
1295 | if (rc == -EAGAIN) | |
1296 | goto OldOpenRetry; | |
1297 | return rc; | |
1298 | } | |
1299 | ||
1da177e4 LT |
1300 | int |
1301 | CIFSSMBOpen(const int xid, struct cifsTconInfo *tcon, | |
1302 | const char *fileName, const int openDisposition, | |
ad7a2926 SF |
1303 | const int access_flags, const int create_options, __u16 *netfid, |
1304 | int *pOplock, FILE_ALL_INFO *pfile_info, | |
737b758c | 1305 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1306 | { |
1307 | int rc = -EACCES; | |
1308 | OPEN_REQ *pSMB = NULL; | |
1309 | OPEN_RSP *pSMBr = NULL; | |
1310 | int bytes_returned; | |
1311 | int name_len; | |
1312 | __u16 count; | |
1313 | ||
1314 | openRetry: | |
1315 | rc = smb_init(SMB_COM_NT_CREATE_ANDX, 24, tcon, (void **) &pSMB, | |
1316 | (void **) &pSMBr); | |
1317 | if (rc) | |
1318 | return rc; | |
1319 | ||
1320 | pSMB->AndXCommand = 0xFF; /* none */ | |
1321 | ||
1322 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1323 | count = 1; /* account for one byte pad to word boundary */ | |
1324 | name_len = | |
b1a45695 | 1325 | cifsConvertToUCS((__le16 *) (pSMB->fileName + 1), |
737b758c | 1326 | fileName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1327 | name_len++; /* trailing null */ |
1328 | name_len *= 2; | |
1329 | pSMB->NameLength = cpu_to_le16(name_len); | |
09d1db5c | 1330 | } else { /* BB improve check for buffer overruns BB */ |
1da177e4 LT |
1331 | count = 0; /* no pad */ |
1332 | name_len = strnlen(fileName, PATH_MAX); | |
1333 | name_len++; /* trailing null */ | |
1334 | pSMB->NameLength = cpu_to_le16(name_len); | |
1335 | strncpy(pSMB->fileName, fileName, name_len); | |
1336 | } | |
1337 | if (*pOplock & REQ_OPLOCK) | |
1338 | pSMB->OpenFlags = cpu_to_le32(REQ_OPLOCK); | |
26f57364 | 1339 | else if (*pOplock & REQ_BATCHOPLOCK) |
1da177e4 | 1340 | pSMB->OpenFlags = cpu_to_le32(REQ_BATCHOPLOCK); |
1da177e4 LT |
1341 | pSMB->DesiredAccess = cpu_to_le32(access_flags); |
1342 | pSMB->AllocationSize = 0; | |
eda3c029 SF |
1343 | /* set file as system file if special file such |
1344 | as fifo and server expecting SFU style and | |
1345 | no Unix extensions */ | |
790fe579 | 1346 | if (create_options & CREATE_OPTION_SPECIAL) |
eda3c029 SF |
1347 | pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM); |
1348 | else | |
1349 | pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL); | |
67750fb9 | 1350 | |
1da177e4 LT |
1351 | /* XP does not handle ATTR_POSIX_SEMANTICS */ |
1352 | /* but it helps speed up case sensitive checks for other | |
1353 | servers such as Samba */ | |
1354 | if (tcon->ses->capabilities & CAP_UNIX) | |
1355 | pSMB->FileAttributes |= cpu_to_le32(ATTR_POSIX_SEMANTICS); | |
1356 | ||
67750fb9 JL |
1357 | if (create_options & CREATE_OPTION_READONLY) |
1358 | pSMB->FileAttributes |= cpu_to_le32(ATTR_READONLY); | |
1359 | ||
1da177e4 LT |
1360 | pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL); |
1361 | pSMB->CreateDisposition = cpu_to_le32(openDisposition); | |
eda3c029 | 1362 | pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK); |
09d1db5c SF |
1363 | /* BB Expirement with various impersonation levels and verify */ |
1364 | pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION); | |
1da177e4 LT |
1365 | pSMB->SecurityFlags = |
1366 | SECURITY_CONTEXT_TRACKING | SECURITY_EFFECTIVE_ONLY; | |
1367 | ||
1368 | count += name_len; | |
1369 | pSMB->hdr.smb_buf_length += count; | |
1370 | ||
1371 | pSMB->ByteCount = cpu_to_le16(count); | |
1372 | /* long_op set to 1 to allow for oplock break timeouts */ | |
1373 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef | 1374 | (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP); |
a4544347 | 1375 | cifs_stats_inc(&tcon->num_opens); |
1da177e4 LT |
1376 | if (rc) { |
1377 | cFYI(1, ("Error in Open = %d", rc)); | |
1378 | } else { | |
09d1db5c | 1379 | *pOplock = pSMBr->OplockLevel; /* 1 byte no need to le_to_cpu */ |
1da177e4 LT |
1380 | *netfid = pSMBr->Fid; /* cifs fid stays in le */ |
1381 | /* Let caller know file was created so we can set the mode. */ | |
1382 | /* Do we care about the CreateAction in any other cases? */ | |
790fe579 | 1383 | if (cpu_to_le32(FILE_CREATE) == pSMBr->CreateAction) |
50c2f753 | 1384 | *pOplock |= CIFS_CREATE_ACTION; |
790fe579 | 1385 | if (pfile_info) { |
61e74801 SF |
1386 | memcpy((char *)pfile_info, (char *)&pSMBr->CreationTime, |
1387 | 36 /* CreationTime to Attributes */); | |
1388 | /* the file_info buf is endian converted by caller */ | |
1389 | pfile_info->AllocationSize = pSMBr->AllocationSize; | |
1390 | pfile_info->EndOfFile = pSMBr->EndOfFile; | |
1391 | pfile_info->NumberOfLinks = cpu_to_le32(1); | |
1392 | pfile_info->DeletePending = 0; | |
1da177e4 | 1393 | } |
1da177e4 | 1394 | } |
a5a2b489 | 1395 | |
1da177e4 LT |
1396 | cifs_buf_release(pSMB); |
1397 | if (rc == -EAGAIN) | |
1398 | goto openRetry; | |
1399 | return rc; | |
1400 | } | |
1401 | ||
1da177e4 | 1402 | int |
50c2f753 SF |
1403 | CIFSSMBRead(const int xid, struct cifsTconInfo *tcon, const int netfid, |
1404 | const unsigned int count, const __u64 lseek, unsigned int *nbytes, | |
1405 | char **buf, int *pbuf_type) | |
1da177e4 LT |
1406 | { |
1407 | int rc = -EACCES; | |
1408 | READ_REQ *pSMB = NULL; | |
1409 | READ_RSP *pSMBr = NULL; | |
1410 | char *pReadData = NULL; | |
bfa0d75a | 1411 | int wct; |
ec637e3f SF |
1412 | int resp_buf_type = 0; |
1413 | struct kvec iov[1]; | |
1da177e4 | 1414 | |
790fe579 SF |
1415 | cFYI(1, ("Reading %d bytes on fid %d", count, netfid)); |
1416 | if (tcon->ses->capabilities & CAP_LARGE_FILES) | |
bfa0d75a | 1417 | wct = 12; |
4c3130ef | 1418 | else { |
bfa0d75a | 1419 | wct = 10; /* old style read */ |
4c3130ef SF |
1420 | if ((lseek >> 32) > 0) { |
1421 | /* can not handle this big offset for old */ | |
1422 | return -EIO; | |
1423 | } | |
1424 | } | |
1da177e4 LT |
1425 | |
1426 | *nbytes = 0; | |
ec637e3f | 1427 | rc = small_smb_init(SMB_COM_READ_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1428 | if (rc) |
1429 | return rc; | |
1430 | ||
1431 | /* tcon and ses pointer are checked in smb_init */ | |
1432 | if (tcon->ses->server == NULL) | |
1433 | return -ECONNABORTED; | |
1434 | ||
ec637e3f | 1435 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1436 | pSMB->Fid = netfid; |
1437 | pSMB->OffsetLow = cpu_to_le32(lseek & 0xFFFFFFFF); | |
790fe579 | 1438 | if (wct == 12) |
bfa0d75a | 1439 | pSMB->OffsetHigh = cpu_to_le32(lseek >> 32); |
bfa0d75a | 1440 | |
1da177e4 LT |
1441 | pSMB->Remaining = 0; |
1442 | pSMB->MaxCount = cpu_to_le16(count & 0xFFFF); | |
1443 | pSMB->MaxCountHigh = cpu_to_le32(count >> 16); | |
790fe579 | 1444 | if (wct == 12) |
bfa0d75a SF |
1445 | pSMB->ByteCount = 0; /* no need to do le conversion since 0 */ |
1446 | else { | |
1447 | /* old style read */ | |
50c2f753 | 1448 | struct smb_com_readx_req *pSMBW = |
bfa0d75a | 1449 | (struct smb_com_readx_req *)pSMB; |
ec637e3f | 1450 | pSMBW->ByteCount = 0; |
bfa0d75a | 1451 | } |
ec637e3f SF |
1452 | |
1453 | iov[0].iov_base = (char *)pSMB; | |
1454 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
a761ac57 | 1455 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, |
133672ef | 1456 | &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR); |
a4544347 | 1457 | cifs_stats_inc(&tcon->num_reads); |
ec637e3f | 1458 | pSMBr = (READ_RSP *)iov[0].iov_base; |
1da177e4 LT |
1459 | if (rc) { |
1460 | cERROR(1, ("Send error in read = %d", rc)); | |
1461 | } else { | |
1462 | int data_length = le16_to_cpu(pSMBr->DataLengthHigh); | |
1463 | data_length = data_length << 16; | |
1464 | data_length += le16_to_cpu(pSMBr->DataLength); | |
1465 | *nbytes = data_length; | |
1466 | ||
1467 | /*check that DataLength would not go beyond end of SMB */ | |
ec637e3f | 1468 | if ((data_length > CIFSMaxBufSize) |
1da177e4 | 1469 | || (data_length > count)) { |
50c2f753 SF |
1470 | cFYI(1, ("bad length %d for count %d", |
1471 | data_length, count)); | |
1da177e4 LT |
1472 | rc = -EIO; |
1473 | *nbytes = 0; | |
1474 | } else { | |
ec637e3f | 1475 | pReadData = (char *) (&pSMBr->hdr.Protocol) + |
26f57364 SF |
1476 | le16_to_cpu(pSMBr->DataOffset); |
1477 | /* if (rc = copy_to_user(buf, pReadData, data_length)) { | |
50c2f753 SF |
1478 | cERROR(1,("Faulting on read rc = %d",rc)); |
1479 | rc = -EFAULT; | |
26f57364 | 1480 | }*/ /* can not use copy_to_user when using page cache*/ |
790fe579 | 1481 | if (*buf) |
50c2f753 | 1482 | memcpy(*buf, pReadData, data_length); |
1da177e4 LT |
1483 | } |
1484 | } | |
1da177e4 | 1485 | |
4b8f930f | 1486 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 SF |
1487 | if (*buf) { |
1488 | if (resp_buf_type == CIFS_SMALL_BUFFER) | |
ec637e3f | 1489 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1490 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1491 | cifs_buf_release(iov[0].iov_base); |
790fe579 | 1492 | } else if (resp_buf_type != CIFS_NO_BUFFER) { |
50c2f753 SF |
1493 | /* return buffer to caller to free */ |
1494 | *buf = iov[0].iov_base; | |
790fe579 | 1495 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1496 | *pbuf_type = CIFS_SMALL_BUFFER; |
790fe579 | 1497 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1498 | *pbuf_type = CIFS_LARGE_BUFFER; |
6cec2aed | 1499 | } /* else no valid buffer on return - leave as null */ |
ec637e3f SF |
1500 | |
1501 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
1da177e4 LT |
1502 | since file handle passed in no longer valid */ |
1503 | return rc; | |
1504 | } | |
1505 | ||
ec637e3f | 1506 | |
1da177e4 LT |
1507 | int |
1508 | CIFSSMBWrite(const int xid, struct cifsTconInfo *tcon, | |
1509 | const int netfid, const unsigned int count, | |
1510 | const __u64 offset, unsigned int *nbytes, const char *buf, | |
50c2f753 | 1511 | const char __user *ubuf, const int long_op) |
1da177e4 LT |
1512 | { |
1513 | int rc = -EACCES; | |
1514 | WRITE_REQ *pSMB = NULL; | |
1515 | WRITE_RSP *pSMBr = NULL; | |
1c955187 | 1516 | int bytes_returned, wct; |
1da177e4 LT |
1517 | __u32 bytes_sent; |
1518 | __u16 byte_count; | |
1519 | ||
61de800d | 1520 | /* cFYI(1, ("write at %lld %d bytes", offset, count));*/ |
790fe579 | 1521 | if (tcon->ses == NULL) |
1c955187 SF |
1522 | return -ECONNABORTED; |
1523 | ||
790fe579 | 1524 | if (tcon->ses->capabilities & CAP_LARGE_FILES) |
1c955187 | 1525 | wct = 14; |
4c3130ef | 1526 | else { |
1c955187 | 1527 | wct = 12; |
4c3130ef SF |
1528 | if ((offset >> 32) > 0) { |
1529 | /* can not handle big offset for old srv */ | |
1530 | return -EIO; | |
1531 | } | |
1532 | } | |
1c955187 SF |
1533 | |
1534 | rc = smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB, | |
1da177e4 LT |
1535 | (void **) &pSMBr); |
1536 | if (rc) | |
1537 | return rc; | |
1538 | /* tcon and ses pointer are checked in smb_init */ | |
1539 | if (tcon->ses->server == NULL) | |
1540 | return -ECONNABORTED; | |
1541 | ||
1542 | pSMB->AndXCommand = 0xFF; /* none */ | |
1543 | pSMB->Fid = netfid; | |
1544 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1545 | if (wct == 14) |
1c955187 | 1546 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
50c2f753 | 1547 | |
1da177e4 LT |
1548 | pSMB->Reserved = 0xFFFFFFFF; |
1549 | pSMB->WriteMode = 0; | |
1550 | pSMB->Remaining = 0; | |
1551 | ||
50c2f753 | 1552 | /* Can increase buffer size if buffer is big enough in some cases ie we |
1da177e4 LT |
1553 | can send more if LARGE_WRITE_X capability returned by the server and if |
1554 | our buffer is big enough or if we convert to iovecs on socket writes | |
1555 | and eliminate the copy to the CIFS buffer */ | |
790fe579 | 1556 | if (tcon->ses->capabilities & CAP_LARGE_WRITE_X) { |
1da177e4 LT |
1557 | bytes_sent = min_t(const unsigned int, CIFSMaxBufSize, count); |
1558 | } else { | |
1559 | bytes_sent = (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) | |
1560 | & ~0xFF; | |
1561 | } | |
1562 | ||
1563 | if (bytes_sent > count) | |
1564 | bytes_sent = count; | |
1565 | pSMB->DataOffset = | |
50c2f753 | 1566 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
790fe579 | 1567 | if (buf) |
61e74801 | 1568 | memcpy(pSMB->Data, buf, bytes_sent); |
790fe579 SF |
1569 | else if (ubuf) { |
1570 | if (copy_from_user(pSMB->Data, ubuf, bytes_sent)) { | |
1da177e4 LT |
1571 | cifs_buf_release(pSMB); |
1572 | return -EFAULT; | |
1573 | } | |
e30dcf3a | 1574 | } else if (count != 0) { |
1da177e4 LT |
1575 | /* No buffer */ |
1576 | cifs_buf_release(pSMB); | |
1577 | return -EINVAL; | |
e30dcf3a | 1578 | } /* else setting file size with write of zero bytes */ |
790fe579 | 1579 | if (wct == 14) |
e30dcf3a | 1580 | byte_count = bytes_sent + 1; /* pad */ |
ad7a2926 | 1581 | else /* wct == 12 */ |
e30dcf3a | 1582 | byte_count = bytes_sent + 5; /* bigger pad, smaller smb hdr */ |
ad7a2926 | 1583 | |
1da177e4 LT |
1584 | pSMB->DataLengthLow = cpu_to_le16(bytes_sent & 0xFFFF); |
1585 | pSMB->DataLengthHigh = cpu_to_le16(bytes_sent >> 16); | |
e30dcf3a | 1586 | pSMB->hdr.smb_buf_length += byte_count; |
1c955187 | 1587 | |
790fe579 | 1588 | if (wct == 14) |
1c955187 | 1589 | pSMB->ByteCount = cpu_to_le16(byte_count); |
50c2f753 SF |
1590 | else { /* old style write has byte count 4 bytes earlier |
1591 | so 4 bytes pad */ | |
1592 | struct smb_com_writex_req *pSMBW = | |
1c955187 SF |
1593 | (struct smb_com_writex_req *)pSMB; |
1594 | pSMBW->ByteCount = cpu_to_le16(byte_count); | |
1595 | } | |
1da177e4 LT |
1596 | |
1597 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1598 | (struct smb_hdr *) pSMBr, &bytes_returned, long_op); | |
a4544347 | 1599 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 LT |
1600 | if (rc) { |
1601 | cFYI(1, ("Send error in write = %d", rc)); | |
1602 | *nbytes = 0; | |
1603 | } else { | |
1604 | *nbytes = le16_to_cpu(pSMBr->CountHigh); | |
1605 | *nbytes = (*nbytes) << 16; | |
1606 | *nbytes += le16_to_cpu(pSMBr->Count); | |
1607 | } | |
1608 | ||
1609 | cifs_buf_release(pSMB); | |
1610 | ||
50c2f753 | 1611 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1612 | since file handle passed in no longer valid */ |
1613 | ||
1614 | return rc; | |
1615 | } | |
1616 | ||
d6e04ae6 SF |
1617 | int |
1618 | CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon, | |
1da177e4 | 1619 | const int netfid, const unsigned int count, |
3e84469d SF |
1620 | const __u64 offset, unsigned int *nbytes, struct kvec *iov, |
1621 | int n_vec, const int long_op) | |
1da177e4 LT |
1622 | { |
1623 | int rc = -EACCES; | |
1624 | WRITE_REQ *pSMB = NULL; | |
ec637e3f | 1625 | int wct; |
d6e04ae6 | 1626 | int smb_hdr_len; |
ec637e3f | 1627 | int resp_buf_type = 0; |
1da177e4 | 1628 | |
790fe579 | 1629 | cFYI(1, ("write2 at %lld %d bytes", (long long)offset, count)); |
ff7feac9 | 1630 | |
4c3130ef | 1631 | if (tcon->ses->capabilities & CAP_LARGE_FILES) { |
8cc64c6e | 1632 | wct = 14; |
4c3130ef | 1633 | } else { |
8cc64c6e | 1634 | wct = 12; |
4c3130ef SF |
1635 | if ((offset >> 32) > 0) { |
1636 | /* can not handle big offset for old srv */ | |
1637 | return -EIO; | |
1638 | } | |
1639 | } | |
8cc64c6e | 1640 | rc = small_smb_init(SMB_COM_WRITE_ANDX, wct, tcon, (void **) &pSMB); |
1da177e4 LT |
1641 | if (rc) |
1642 | return rc; | |
1da177e4 LT |
1643 | /* tcon and ses pointer are checked in smb_init */ |
1644 | if (tcon->ses->server == NULL) | |
1645 | return -ECONNABORTED; | |
1646 | ||
d6e04ae6 | 1647 | pSMB->AndXCommand = 0xFF; /* none */ |
1da177e4 LT |
1648 | pSMB->Fid = netfid; |
1649 | pSMB->OffsetLow = cpu_to_le32(offset & 0xFFFFFFFF); | |
790fe579 | 1650 | if (wct == 14) |
8cc64c6e | 1651 | pSMB->OffsetHigh = cpu_to_le32(offset >> 32); |
1da177e4 LT |
1652 | pSMB->Reserved = 0xFFFFFFFF; |
1653 | pSMB->WriteMode = 0; | |
1654 | pSMB->Remaining = 0; | |
d6e04ae6 | 1655 | |
1da177e4 | 1656 | pSMB->DataOffset = |
50c2f753 | 1657 | cpu_to_le16(offsetof(struct smb_com_write_req, Data) - 4); |
1da177e4 | 1658 | |
3e84469d SF |
1659 | pSMB->DataLengthLow = cpu_to_le16(count & 0xFFFF); |
1660 | pSMB->DataLengthHigh = cpu_to_le16(count >> 16); | |
d6e04ae6 | 1661 | smb_hdr_len = pSMB->hdr.smb_buf_length + 1; /* hdr + 1 byte pad */ |
790fe579 | 1662 | if (wct == 14) |
8cc64c6e SF |
1663 | pSMB->hdr.smb_buf_length += count+1; |
1664 | else /* wct == 12 */ | |
790fe579 SF |
1665 | pSMB->hdr.smb_buf_length += count+5; /* smb data starts later */ |
1666 | if (wct == 14) | |
8cc64c6e SF |
1667 | pSMB->ByteCount = cpu_to_le16(count + 1); |
1668 | else /* wct == 12 */ /* bigger pad, smaller smb hdr, keep offset ok */ { | |
50c2f753 | 1669 | struct smb_com_writex_req *pSMBW = |
8cc64c6e SF |
1670 | (struct smb_com_writex_req *)pSMB; |
1671 | pSMBW->ByteCount = cpu_to_le16(count + 5); | |
1672 | } | |
3e84469d | 1673 | iov[0].iov_base = pSMB; |
790fe579 | 1674 | if (wct == 14) |
ec637e3f SF |
1675 | iov[0].iov_len = smb_hdr_len + 4; |
1676 | else /* wct == 12 pad bigger by four bytes */ | |
1677 | iov[0].iov_len = smb_hdr_len + 8; | |
50c2f753 | 1678 | |
1da177e4 | 1679 | |
ec637e3f | 1680 | rc = SendReceive2(xid, tcon->ses, iov, n_vec + 1, &resp_buf_type, |
133672ef | 1681 | long_op); |
a4544347 | 1682 | cifs_stats_inc(&tcon->num_writes); |
1da177e4 | 1683 | if (rc) { |
8cc64c6e | 1684 | cFYI(1, ("Send error Write2 = %d", rc)); |
1da177e4 | 1685 | *nbytes = 0; |
790fe579 | 1686 | } else if (resp_buf_type == 0) { |
ec637e3f SF |
1687 | /* presumably this can not happen, but best to be safe */ |
1688 | rc = -EIO; | |
1689 | *nbytes = 0; | |
d6e04ae6 | 1690 | } else { |
ad7a2926 | 1691 | WRITE_RSP *pSMBr = (WRITE_RSP *)iov[0].iov_base; |
d6e04ae6 SF |
1692 | *nbytes = le16_to_cpu(pSMBr->CountHigh); |
1693 | *nbytes = (*nbytes) << 16; | |
1694 | *nbytes += le16_to_cpu(pSMBr->Count); | |
50c2f753 | 1695 | } |
1da177e4 | 1696 | |
4b8f930f | 1697 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
790fe579 | 1698 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
ec637e3f | 1699 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 1700 | else if (resp_buf_type == CIFS_LARGE_BUFFER) |
ec637e3f | 1701 | cifs_buf_release(iov[0].iov_base); |
1da177e4 | 1702 | |
50c2f753 | 1703 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1704 | since file handle passed in no longer valid */ |
1705 | ||
1706 | return rc; | |
1707 | } | |
d6e04ae6 SF |
1708 | |
1709 | ||
1da177e4 LT |
1710 | int |
1711 | CIFSSMBLock(const int xid, struct cifsTconInfo *tcon, | |
1712 | const __u16 smb_file_id, const __u64 len, | |
1713 | const __u64 offset, const __u32 numUnlock, | |
4b18f2a9 | 1714 | const __u32 numLock, const __u8 lockType, const bool waitFlag) |
1da177e4 LT |
1715 | { |
1716 | int rc = 0; | |
1717 | LOCK_REQ *pSMB = NULL; | |
aaa9bbe0 | 1718 | /* LOCK_RSP *pSMBr = NULL; */ /* No response data other than rc to parse */ |
1da177e4 LT |
1719 | int bytes_returned; |
1720 | int timeout = 0; | |
1721 | __u16 count; | |
1722 | ||
4b18f2a9 | 1723 | cFYI(1, ("CIFSSMBLock timeout %d numLock %d", (int)waitFlag, numLock)); |
46810cbf SF |
1724 | rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB); |
1725 | ||
1da177e4 LT |
1726 | if (rc) |
1727 | return rc; | |
1728 | ||
790fe579 | 1729 | if (lockType == LOCKING_ANDX_OPLOCK_RELEASE) { |
133672ef | 1730 | timeout = CIFS_ASYNC_OP; /* no response expected */ |
1da177e4 | 1731 | pSMB->Timeout = 0; |
4b18f2a9 | 1732 | } else if (waitFlag) { |
133672ef | 1733 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
1da177e4 LT |
1734 | pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */ |
1735 | } else { | |
1736 | pSMB->Timeout = 0; | |
1737 | } | |
1738 | ||
1739 | pSMB->NumberOfLocks = cpu_to_le16(numLock); | |
1740 | pSMB->NumberOfUnlocks = cpu_to_le16(numUnlock); | |
1741 | pSMB->LockType = lockType; | |
1742 | pSMB->AndXCommand = 0xFF; /* none */ | |
1743 | pSMB->Fid = smb_file_id; /* netfid stays le */ | |
1744 | ||
790fe579 | 1745 | if ((numLock != 0) || (numUnlock != 0)) { |
1da177e4 LT |
1746 | pSMB->Locks[0].Pid = cpu_to_le16(current->tgid); |
1747 | /* BB where to store pid high? */ | |
1748 | pSMB->Locks[0].LengthLow = cpu_to_le32((u32)len); | |
1749 | pSMB->Locks[0].LengthHigh = cpu_to_le32((u32)(len>>32)); | |
1750 | pSMB->Locks[0].OffsetLow = cpu_to_le32((u32)offset); | |
1751 | pSMB->Locks[0].OffsetHigh = cpu_to_le32((u32)(offset>>32)); | |
1752 | count = sizeof(LOCKING_ANDX_RANGE); | |
1753 | } else { | |
1754 | /* oplock break */ | |
1755 | count = 0; | |
1756 | } | |
1757 | pSMB->hdr.smb_buf_length += count; | |
1758 | pSMB->ByteCount = cpu_to_le16(count); | |
1759 | ||
7ee1af76 JA |
1760 | if (waitFlag) { |
1761 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
aaa9bbe0 | 1762 | (struct smb_hdr *) pSMB, &bytes_returned); |
133672ef | 1763 | cifs_small_buf_release(pSMB); |
7ee1af76 | 1764 | } else { |
133672ef SF |
1765 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB, |
1766 | timeout); | |
1767 | /* SMB buffer freed by function above */ | |
7ee1af76 | 1768 | } |
a4544347 | 1769 | cifs_stats_inc(&tcon->num_locks); |
ad7a2926 | 1770 | if (rc) |
1da177e4 | 1771 | cFYI(1, ("Send error in Lock = %d", rc)); |
1da177e4 | 1772 | |
50c2f753 | 1773 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
1774 | since file handle passed in no longer valid */ |
1775 | return rc; | |
1776 | } | |
1777 | ||
08547b03 SF |
1778 | int |
1779 | CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon, | |
1780 | const __u16 smb_file_id, const int get_flag, const __u64 len, | |
50c2f753 | 1781 | struct file_lock *pLockData, const __u16 lock_type, |
4b18f2a9 | 1782 | const bool waitFlag) |
08547b03 SF |
1783 | { |
1784 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1785 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
08547b03 SF |
1786 | struct cifs_posix_lock *parm_data; |
1787 | int rc = 0; | |
3a5ff61c | 1788 | int timeout = 0; |
08547b03 | 1789 | int bytes_returned = 0; |
133672ef | 1790 | int resp_buf_type = 0; |
08547b03 | 1791 | __u16 params, param_offset, offset, byte_count, count; |
133672ef | 1792 | struct kvec iov[1]; |
08547b03 SF |
1793 | |
1794 | cFYI(1, ("Posix Lock")); | |
fc94cdb9 | 1795 | |
790fe579 | 1796 | if (pLockData == NULL) |
ed5f0370 | 1797 | return -EINVAL; |
fc94cdb9 | 1798 | |
08547b03 SF |
1799 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
1800 | ||
1801 | if (rc) | |
1802 | return rc; | |
1803 | ||
1804 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB; | |
1805 | ||
50c2f753 | 1806 | params = 6; |
08547b03 SF |
1807 | pSMB->MaxSetupCount = 0; |
1808 | pSMB->Reserved = 0; | |
1809 | pSMB->Flags = 0; | |
08547b03 SF |
1810 | pSMB->Reserved2 = 0; |
1811 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
1812 | offset = param_offset + params; | |
1813 | ||
08547b03 SF |
1814 | count = sizeof(struct cifs_posix_lock); |
1815 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 1816 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
08547b03 SF |
1817 | pSMB->SetupCount = 1; |
1818 | pSMB->Reserved3 = 0; | |
790fe579 | 1819 | if (get_flag) |
08547b03 SF |
1820 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); |
1821 | else | |
1822 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
1823 | byte_count = 3 /* pad */ + params + count; | |
1824 | pSMB->DataCount = cpu_to_le16(count); | |
1825 | pSMB->ParameterCount = cpu_to_le16(params); | |
1826 | pSMB->TotalDataCount = pSMB->DataCount; | |
1827 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
1828 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
50c2f753 | 1829 | parm_data = (struct cifs_posix_lock *) |
08547b03 SF |
1830 | (((char *) &pSMB->hdr.Protocol) + offset); |
1831 | ||
1832 | parm_data->lock_type = cpu_to_le16(lock_type); | |
790fe579 | 1833 | if (waitFlag) { |
133672ef | 1834 | timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */ |
cec6815a | 1835 | parm_data->lock_flags = cpu_to_le16(1); |
3a5ff61c SF |
1836 | pSMB->Timeout = cpu_to_le32(-1); |
1837 | } else | |
1838 | pSMB->Timeout = 0; | |
1839 | ||
08547b03 | 1840 | parm_data->pid = cpu_to_le32(current->tgid); |
fc94cdb9 | 1841 | parm_data->start = cpu_to_le64(pLockData->fl_start); |
cec6815a | 1842 | parm_data->length = cpu_to_le64(len); /* normalize negative numbers */ |
08547b03 SF |
1843 | |
1844 | pSMB->DataOffset = cpu_to_le16(offset); | |
f26282c9 | 1845 | pSMB->Fid = smb_file_id; |
08547b03 SF |
1846 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_LOCK); |
1847 | pSMB->Reserved4 = 0; | |
1848 | pSMB->hdr.smb_buf_length += byte_count; | |
1849 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
7ee1af76 JA |
1850 | if (waitFlag) { |
1851 | rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB, | |
1852 | (struct smb_hdr *) pSMBr, &bytes_returned); | |
1853 | } else { | |
133672ef SF |
1854 | iov[0].iov_base = (char *)pSMB; |
1855 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
1856 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */, | |
1857 | &resp_buf_type, timeout); | |
1858 | pSMB = NULL; /* request buf already freed by SendReceive2. Do | |
1859 | not try to free it twice below on exit */ | |
1860 | pSMBr = (struct smb_com_transaction2_sfi_rsp *)iov[0].iov_base; | |
7ee1af76 JA |
1861 | } |
1862 | ||
08547b03 SF |
1863 | if (rc) { |
1864 | cFYI(1, ("Send error in Posix Lock = %d", rc)); | |
fc94cdb9 SF |
1865 | } else if (get_flag) { |
1866 | /* lock structure can be returned on get */ | |
1867 | __u16 data_offset; | |
1868 | __u16 data_count; | |
1869 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1870 | ||
1871 | if (rc || (pSMBr->ByteCount < sizeof(struct cifs_posix_lock))) { | |
1872 | rc = -EIO; /* bad smb */ | |
1873 | goto plk_err_exit; | |
1874 | } | |
fc94cdb9 SF |
1875 | data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
1876 | data_count = le16_to_cpu(pSMBr->t2.DataCount); | |
790fe579 | 1877 | if (data_count < sizeof(struct cifs_posix_lock)) { |
fc94cdb9 SF |
1878 | rc = -EIO; |
1879 | goto plk_err_exit; | |
1880 | } | |
1881 | parm_data = (struct cifs_posix_lock *) | |
1882 | ((char *)&pSMBr->hdr.Protocol + data_offset); | |
790fe579 | 1883 | if (parm_data->lock_type == cpu_to_le16(CIFS_UNLCK)) |
fc94cdb9 | 1884 | pLockData->fl_type = F_UNLCK; |
08547b03 | 1885 | } |
50c2f753 | 1886 | |
fc94cdb9 | 1887 | plk_err_exit: |
08547b03 SF |
1888 | if (pSMB) |
1889 | cifs_small_buf_release(pSMB); | |
1890 | ||
133672ef SF |
1891 | if (resp_buf_type == CIFS_SMALL_BUFFER) |
1892 | cifs_small_buf_release(iov[0].iov_base); | |
1893 | else if (resp_buf_type == CIFS_LARGE_BUFFER) | |
1894 | cifs_buf_release(iov[0].iov_base); | |
1895 | ||
08547b03 SF |
1896 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1897 | since file handle passed in no longer valid */ | |
1898 | ||
1899 | return rc; | |
1900 | } | |
1901 | ||
1902 | ||
1da177e4 LT |
1903 | int |
1904 | CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id) | |
1905 | { | |
1906 | int rc = 0; | |
1907 | CLOSE_REQ *pSMB = NULL; | |
1da177e4 LT |
1908 | cFYI(1, ("In CIFSSMBClose")); |
1909 | ||
1910 | /* do not retry on dead session on close */ | |
1911 | rc = small_smb_init(SMB_COM_CLOSE, 3, tcon, (void **) &pSMB); | |
790fe579 | 1912 | if (rc == -EAGAIN) |
1da177e4 LT |
1913 | return 0; |
1914 | if (rc) | |
1915 | return rc; | |
1916 | ||
1da177e4 | 1917 | pSMB->FileID = (__u16) smb_file_id; |
b815f1e5 | 1918 | pSMB->LastWriteTime = 0xFFFFFFFF; |
1da177e4 | 1919 | pSMB->ByteCount = 0; |
133672ef | 1920 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
a4544347 | 1921 | cifs_stats_inc(&tcon->num_closes); |
1da177e4 | 1922 | if (rc) { |
790fe579 | 1923 | if (rc != -EINTR) { |
1da177e4 LT |
1924 | /* EINTR is expected when user ctl-c to kill app */ |
1925 | cERROR(1, ("Send error in Close = %d", rc)); | |
1926 | } | |
1927 | } | |
1928 | ||
1da177e4 | 1929 | /* Since session is dead, file will be closed on server already */ |
790fe579 | 1930 | if (rc == -EAGAIN) |
1da177e4 LT |
1931 | rc = 0; |
1932 | ||
1933 | return rc; | |
1934 | } | |
1935 | ||
1936 | int | |
1937 | CIFSSMBRename(const int xid, struct cifsTconInfo *tcon, | |
1938 | const char *fromName, const char *toName, | |
737b758c | 1939 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
1940 | { |
1941 | int rc = 0; | |
1942 | RENAME_REQ *pSMB = NULL; | |
1943 | RENAME_RSP *pSMBr = NULL; | |
1944 | int bytes_returned; | |
1945 | int name_len, name_len2; | |
1946 | __u16 count; | |
1947 | ||
1948 | cFYI(1, ("In CIFSSMBRename")); | |
1949 | renameRetry: | |
1950 | rc = smb_init(SMB_COM_RENAME, 1, tcon, (void **) &pSMB, | |
1951 | (void **) &pSMBr); | |
1952 | if (rc) | |
1953 | return rc; | |
1954 | ||
1955 | pSMB->BufferFormat = 0x04; | |
1956 | pSMB->SearchAttributes = | |
1957 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
1958 | ATTR_DIRECTORY); | |
1959 | ||
1960 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
1961 | name_len = | |
50c2f753 | 1962 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 1963 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1964 | name_len++; /* trailing null */ |
1965 | name_len *= 2; | |
1966 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
1967 | /* protocol requires ASCII signature byte on Unicode string */ | |
1968 | pSMB->OldFileName[name_len + 1] = 0x00; | |
1969 | name_len2 = | |
582d21e5 | 1970 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 1971 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
1972 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
1973 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 1974 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
1975 | name_len = strnlen(fromName, PATH_MAX); |
1976 | name_len++; /* trailing null */ | |
1977 | strncpy(pSMB->OldFileName, fromName, name_len); | |
1978 | name_len2 = strnlen(toName, PATH_MAX); | |
1979 | name_len2++; /* trailing null */ | |
1980 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
1981 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
1982 | name_len2++; /* trailing null */ | |
1983 | name_len2++; /* signature byte */ | |
1984 | } | |
1985 | ||
1986 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
1987 | pSMB->hdr.smb_buf_length += count; | |
1988 | pSMB->ByteCount = cpu_to_le16(count); | |
1989 | ||
1990 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
1991 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 1992 | cifs_stats_inc(&tcon->num_renames); |
ad7a2926 | 1993 | if (rc) |
1da177e4 | 1994 | cFYI(1, ("Send error in rename = %d", rc)); |
1da177e4 | 1995 | |
1da177e4 LT |
1996 | cifs_buf_release(pSMB); |
1997 | ||
1998 | if (rc == -EAGAIN) | |
1999 | goto renameRetry; | |
2000 | ||
2001 | return rc; | |
2002 | } | |
2003 | ||
50c2f753 | 2004 | int CIFSSMBRenameOpenFile(const int xid, struct cifsTconInfo *pTcon, |
391e5755 | 2005 | int netfid, const char *target_name, |
50c2f753 | 2006 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2007 | { |
2008 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
2009 | struct smb_com_transaction2_sfi_rsp *pSMBr = NULL; | |
50c2f753 | 2010 | struct set_file_rename *rename_info; |
1da177e4 LT |
2011 | char *data_offset; |
2012 | char dummy_string[30]; | |
2013 | int rc = 0; | |
2014 | int bytes_returned = 0; | |
2015 | int len_of_str; | |
2016 | __u16 params, param_offset, offset, count, byte_count; | |
2017 | ||
2018 | cFYI(1, ("Rename to File by handle")); | |
2019 | rc = smb_init(SMB_COM_TRANSACTION2, 15, pTcon, (void **) &pSMB, | |
2020 | (void **) &pSMBr); | |
2021 | if (rc) | |
2022 | return rc; | |
2023 | ||
2024 | params = 6; | |
2025 | pSMB->MaxSetupCount = 0; | |
2026 | pSMB->Reserved = 0; | |
2027 | pSMB->Flags = 0; | |
2028 | pSMB->Timeout = 0; | |
2029 | pSMB->Reserved2 = 0; | |
2030 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
2031 | offset = param_offset + params; | |
2032 | ||
2033 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2034 | rename_info = (struct set_file_rename *) data_offset; | |
2035 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
ad7a2926 | 2036 | pSMB->MaxDataCount = cpu_to_le16(1000); /* BB find max SMB from sess */ |
1da177e4 LT |
2037 | pSMB->SetupCount = 1; |
2038 | pSMB->Reserved3 = 0; | |
2039 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
2040 | byte_count = 3 /* pad */ + params; | |
2041 | pSMB->ParameterCount = cpu_to_le16(params); | |
2042 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2043 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2044 | pSMB->DataOffset = cpu_to_le16(offset); | |
2045 | /* construct random name ".cifs_tmp<inodenum><mid>" */ | |
2046 | rename_info->overwrite = cpu_to_le32(1); | |
2047 | rename_info->root_fid = 0; | |
2048 | /* unicode only call */ | |
790fe579 | 2049 | if (target_name == NULL) { |
50c2f753 SF |
2050 | sprintf(dummy_string, "cifs%x", pSMB->hdr.Mid); |
2051 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, | |
737b758c | 2052 | dummy_string, 24, nls_codepage, remap); |
1da177e4 | 2053 | } else { |
b1a45695 | 2054 | len_of_str = cifsConvertToUCS((__le16 *)rename_info->target_name, |
50c2f753 SF |
2055 | target_name, PATH_MAX, nls_codepage, |
2056 | remap); | |
1da177e4 LT |
2057 | } |
2058 | rename_info->target_name_len = cpu_to_le32(2 * len_of_str); | |
391e5755 | 2059 | count = 12 /* sizeof(struct set_file_rename) */ + (2 * len_of_str); |
1da177e4 LT |
2060 | byte_count += count; |
2061 | pSMB->DataCount = cpu_to_le16(count); | |
2062 | pSMB->TotalDataCount = pSMB->DataCount; | |
2063 | pSMB->Fid = netfid; | |
2064 | pSMB->InformationLevel = | |
2065 | cpu_to_le16(SMB_SET_FILE_RENAME_INFORMATION); | |
2066 | pSMB->Reserved4 = 0; | |
2067 | pSMB->hdr.smb_buf_length += byte_count; | |
2068 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2069 | rc = SendReceive(xid, pTcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2070 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
a4544347 | 2071 | cifs_stats_inc(&pTcon->num_t2renames); |
ad7a2926 | 2072 | if (rc) |
790fe579 | 2073 | cFYI(1, ("Send error in Rename (by file handle) = %d", rc)); |
a5a2b489 | 2074 | |
1da177e4 LT |
2075 | cifs_buf_release(pSMB); |
2076 | ||
2077 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2078 | since file handle passed in no longer valid */ | |
2079 | ||
2080 | return rc; | |
2081 | } | |
2082 | ||
2083 | int | |
50c2f753 SF |
2084 | CIFSSMBCopy(const int xid, struct cifsTconInfo *tcon, const char *fromName, |
2085 | const __u16 target_tid, const char *toName, const int flags, | |
2086 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2087 | { |
2088 | int rc = 0; | |
2089 | COPY_REQ *pSMB = NULL; | |
2090 | COPY_RSP *pSMBr = NULL; | |
2091 | int bytes_returned; | |
2092 | int name_len, name_len2; | |
2093 | __u16 count; | |
2094 | ||
2095 | cFYI(1, ("In CIFSSMBCopy")); | |
2096 | copyRetry: | |
2097 | rc = smb_init(SMB_COM_COPY, 1, tcon, (void **) &pSMB, | |
2098 | (void **) &pSMBr); | |
2099 | if (rc) | |
2100 | return rc; | |
2101 | ||
2102 | pSMB->BufferFormat = 0x04; | |
2103 | pSMB->Tid2 = target_tid; | |
2104 | ||
2105 | pSMB->Flags = cpu_to_le16(flags & COPY_TREE); | |
2106 | ||
2107 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
50c2f753 | 2108 | name_len = cifsConvertToUCS((__le16 *) pSMB->OldFileName, |
737b758c SF |
2109 | fromName, PATH_MAX, nls_codepage, |
2110 | remap); | |
1da177e4 LT |
2111 | name_len++; /* trailing null */ |
2112 | name_len *= 2; | |
2113 | pSMB->OldFileName[name_len] = 0x04; /* pad */ | |
2114 | /* protocol requires ASCII signature byte on Unicode string */ | |
2115 | pSMB->OldFileName[name_len + 1] = 0x00; | |
50c2f753 SF |
2116 | name_len2 = |
2117 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], | |
737b758c | 2118 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2119 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2120 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2121 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2122 | name_len = strnlen(fromName, PATH_MAX); |
2123 | name_len++; /* trailing null */ | |
2124 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2125 | name_len2 = strnlen(toName, PATH_MAX); | |
2126 | name_len2++; /* trailing null */ | |
2127 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2128 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2129 | name_len2++; /* trailing null */ | |
2130 | name_len2++; /* signature byte */ | |
2131 | } | |
2132 | ||
2133 | count = 1 /* 1st signature byte */ + name_len + name_len2; | |
2134 | pSMB->hdr.smb_buf_length += count; | |
2135 | pSMB->ByteCount = cpu_to_le16(count); | |
2136 | ||
2137 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2138 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2139 | if (rc) { | |
2140 | cFYI(1, ("Send error in copy = %d with %d files copied", | |
2141 | rc, le16_to_cpu(pSMBr->CopyCount))); | |
2142 | } | |
0d817bc0 | 2143 | cifs_buf_release(pSMB); |
1da177e4 LT |
2144 | |
2145 | if (rc == -EAGAIN) | |
2146 | goto copyRetry; | |
2147 | ||
2148 | return rc; | |
2149 | } | |
2150 | ||
2151 | int | |
2152 | CIFSUnixCreateSymLink(const int xid, struct cifsTconInfo *tcon, | |
2153 | const char *fromName, const char *toName, | |
2154 | const struct nls_table *nls_codepage) | |
2155 | { | |
2156 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2157 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2158 | char *data_offset; | |
2159 | int name_len; | |
2160 | int name_len_target; | |
2161 | int rc = 0; | |
2162 | int bytes_returned = 0; | |
2163 | __u16 params, param_offset, offset, byte_count; | |
2164 | ||
2165 | cFYI(1, ("In Symlink Unix style")); | |
2166 | createSymLinkRetry: | |
2167 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2168 | (void **) &pSMBr); | |
2169 | if (rc) | |
2170 | return rc; | |
2171 | ||
2172 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2173 | name_len = | |
e89dc920 | 2174 | cifs_strtoUCS((__le16 *) pSMB->FileName, fromName, PATH_MAX |
1da177e4 LT |
2175 | /* find define for this maxpathcomponent */ |
2176 | , nls_codepage); | |
2177 | name_len++; /* trailing null */ | |
2178 | name_len *= 2; | |
2179 | ||
50c2f753 | 2180 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2181 | name_len = strnlen(fromName, PATH_MAX); |
2182 | name_len++; /* trailing null */ | |
2183 | strncpy(pSMB->FileName, fromName, name_len); | |
2184 | } | |
2185 | params = 6 + name_len; | |
2186 | pSMB->MaxSetupCount = 0; | |
2187 | pSMB->Reserved = 0; | |
2188 | pSMB->Flags = 0; | |
2189 | pSMB->Timeout = 0; | |
2190 | pSMB->Reserved2 = 0; | |
2191 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2192 | InformationLevel) - 4; |
1da177e4 LT |
2193 | offset = param_offset + params; |
2194 | ||
2195 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2196 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2197 | name_len_target = | |
e89dc920 | 2198 | cifs_strtoUCS((__le16 *) data_offset, toName, PATH_MAX |
1da177e4 LT |
2199 | /* find define for this maxpathcomponent */ |
2200 | , nls_codepage); | |
2201 | name_len_target++; /* trailing null */ | |
2202 | name_len_target *= 2; | |
50c2f753 | 2203 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2204 | name_len_target = strnlen(toName, PATH_MAX); |
2205 | name_len_target++; /* trailing null */ | |
2206 | strncpy(data_offset, toName, name_len_target); | |
2207 | } | |
2208 | ||
2209 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2210 | /* BB find exact max on data count below from sess */ | |
2211 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2212 | pSMB->SetupCount = 1; | |
2213 | pSMB->Reserved3 = 0; | |
2214 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2215 | byte_count = 3 /* pad */ + params + name_len_target; | |
2216 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2217 | pSMB->ParameterCount = cpu_to_le16(params); | |
2218 | pSMB->TotalDataCount = pSMB->DataCount; | |
2219 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2220 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2221 | pSMB->DataOffset = cpu_to_le16(offset); | |
2222 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_LINK); | |
2223 | pSMB->Reserved4 = 0; | |
2224 | pSMB->hdr.smb_buf_length += byte_count; | |
2225 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2226 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2227 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2228 | cifs_stats_inc(&tcon->num_symlinks); |
ad7a2926 | 2229 | if (rc) |
2d785a50 | 2230 | cFYI(1, ("Send error in SetPathInfo create symlink = %d", rc)); |
1da177e4 | 2231 | |
0d817bc0 | 2232 | cifs_buf_release(pSMB); |
1da177e4 LT |
2233 | |
2234 | if (rc == -EAGAIN) | |
2235 | goto createSymLinkRetry; | |
2236 | ||
2237 | return rc; | |
2238 | } | |
2239 | ||
2240 | int | |
2241 | CIFSUnixCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2242 | const char *fromName, const char *toName, | |
737b758c | 2243 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2244 | { |
2245 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
2246 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
2247 | char *data_offset; | |
2248 | int name_len; | |
2249 | int name_len_target; | |
2250 | int rc = 0; | |
2251 | int bytes_returned = 0; | |
2252 | __u16 params, param_offset, offset, byte_count; | |
2253 | ||
2254 | cFYI(1, ("In Create Hard link Unix style")); | |
2255 | createHardLinkRetry: | |
2256 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2257 | (void **) &pSMBr); | |
2258 | if (rc) | |
2259 | return rc; | |
2260 | ||
2261 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
b1a45695 | 2262 | name_len = cifsConvertToUCS((__le16 *) pSMB->FileName, toName, |
737b758c | 2263 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2264 | name_len++; /* trailing null */ |
2265 | name_len *= 2; | |
2266 | ||
50c2f753 | 2267 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2268 | name_len = strnlen(toName, PATH_MAX); |
2269 | name_len++; /* trailing null */ | |
2270 | strncpy(pSMB->FileName, toName, name_len); | |
2271 | } | |
2272 | params = 6 + name_len; | |
2273 | pSMB->MaxSetupCount = 0; | |
2274 | pSMB->Reserved = 0; | |
2275 | pSMB->Flags = 0; | |
2276 | pSMB->Timeout = 0; | |
2277 | pSMB->Reserved2 = 0; | |
2278 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2279 | InformationLevel) - 4; |
1da177e4 LT |
2280 | offset = param_offset + params; |
2281 | ||
2282 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
2283 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2284 | name_len_target = | |
b1a45695 | 2285 | cifsConvertToUCS((__le16 *) data_offset, fromName, PATH_MAX, |
737b758c | 2286 | nls_codepage, remap); |
1da177e4 LT |
2287 | name_len_target++; /* trailing null */ |
2288 | name_len_target *= 2; | |
50c2f753 | 2289 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2290 | name_len_target = strnlen(fromName, PATH_MAX); |
2291 | name_len_target++; /* trailing null */ | |
2292 | strncpy(data_offset, fromName, name_len_target); | |
2293 | } | |
2294 | ||
2295 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2296 | /* BB find exact max on data count below from sess*/ | |
2297 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
2298 | pSMB->SetupCount = 1; | |
2299 | pSMB->Reserved3 = 0; | |
2300 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2301 | byte_count = 3 /* pad */ + params + name_len_target; | |
2302 | pSMB->ParameterCount = cpu_to_le16(params); | |
2303 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2304 | pSMB->DataCount = cpu_to_le16(name_len_target); | |
2305 | pSMB->TotalDataCount = pSMB->DataCount; | |
2306 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2307 | pSMB->DataOffset = cpu_to_le16(offset); | |
2308 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_HLINK); | |
2309 | pSMB->Reserved4 = 0; | |
2310 | pSMB->hdr.smb_buf_length += byte_count; | |
2311 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2312 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2313 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2314 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2315 | if (rc) |
1da177e4 | 2316 | cFYI(1, ("Send error in SetPathInfo (hard link) = %d", rc)); |
1da177e4 LT |
2317 | |
2318 | cifs_buf_release(pSMB); | |
2319 | if (rc == -EAGAIN) | |
2320 | goto createHardLinkRetry; | |
2321 | ||
2322 | return rc; | |
2323 | } | |
2324 | ||
2325 | int | |
2326 | CIFSCreateHardLink(const int xid, struct cifsTconInfo *tcon, | |
2327 | const char *fromName, const char *toName, | |
737b758c | 2328 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
2329 | { |
2330 | int rc = 0; | |
2331 | NT_RENAME_REQ *pSMB = NULL; | |
2332 | RENAME_RSP *pSMBr = NULL; | |
2333 | int bytes_returned; | |
2334 | int name_len, name_len2; | |
2335 | __u16 count; | |
2336 | ||
2337 | cFYI(1, ("In CIFSCreateHardLink")); | |
2338 | winCreateHardLinkRetry: | |
2339 | ||
2340 | rc = smb_init(SMB_COM_NT_RENAME, 4, tcon, (void **) &pSMB, | |
2341 | (void **) &pSMBr); | |
2342 | if (rc) | |
2343 | return rc; | |
2344 | ||
2345 | pSMB->SearchAttributes = | |
2346 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
2347 | ATTR_DIRECTORY); | |
2348 | pSMB->Flags = cpu_to_le16(CREATE_HARD_LINK); | |
2349 | pSMB->ClusterCount = 0; | |
2350 | ||
2351 | pSMB->BufferFormat = 0x04; | |
2352 | ||
2353 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2354 | name_len = | |
b1a45695 | 2355 | cifsConvertToUCS((__le16 *) pSMB->OldFileName, fromName, |
737b758c | 2356 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2357 | name_len++; /* trailing null */ |
2358 | name_len *= 2; | |
2359 | pSMB->OldFileName[name_len] = 0; /* pad */ | |
50c2f753 | 2360 | pSMB->OldFileName[name_len + 1] = 0x04; |
1da177e4 | 2361 | name_len2 = |
50c2f753 | 2362 | cifsConvertToUCS((__le16 *)&pSMB->OldFileName[name_len + 2], |
737b758c | 2363 | toName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2364 | name_len2 += 1 /* trailing null */ + 1 /* Signature word */ ; |
2365 | name_len2 *= 2; /* convert to bytes */ | |
50c2f753 | 2366 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2367 | name_len = strnlen(fromName, PATH_MAX); |
2368 | name_len++; /* trailing null */ | |
2369 | strncpy(pSMB->OldFileName, fromName, name_len); | |
2370 | name_len2 = strnlen(toName, PATH_MAX); | |
2371 | name_len2++; /* trailing null */ | |
2372 | pSMB->OldFileName[name_len] = 0x04; /* 2nd buffer format */ | |
2373 | strncpy(&pSMB->OldFileName[name_len + 1], toName, name_len2); | |
2374 | name_len2++; /* trailing null */ | |
2375 | name_len2++; /* signature byte */ | |
2376 | } | |
2377 | ||
2378 | count = 1 /* string type byte */ + name_len + name_len2; | |
2379 | pSMB->hdr.smb_buf_length += count; | |
2380 | pSMB->ByteCount = cpu_to_le16(count); | |
2381 | ||
2382 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2383 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 2384 | cifs_stats_inc(&tcon->num_hardlinks); |
ad7a2926 | 2385 | if (rc) |
1da177e4 | 2386 | cFYI(1, ("Send error in hard link (NT rename) = %d", rc)); |
ad7a2926 | 2387 | |
1da177e4 LT |
2388 | cifs_buf_release(pSMB); |
2389 | if (rc == -EAGAIN) | |
2390 | goto winCreateHardLinkRetry; | |
2391 | ||
2392 | return rc; | |
2393 | } | |
2394 | ||
2395 | int | |
2396 | CIFSSMBUnixQuerySymLink(const int xid, struct cifsTconInfo *tcon, | |
2397 | const unsigned char *searchName, | |
2398 | char *symlinkinfo, const int buflen, | |
2399 | const struct nls_table *nls_codepage) | |
2400 | { | |
2401 | /* SMB_QUERY_FILE_UNIX_LINK */ | |
2402 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2403 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2404 | int rc = 0; | |
2405 | int bytes_returned; | |
2406 | int name_len; | |
2407 | __u16 params, byte_count; | |
2408 | ||
2409 | cFYI(1, ("In QPathSymLinkInfo (Unix) for path %s", searchName)); | |
2410 | ||
2411 | querySymLinkRetry: | |
2412 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2413 | (void **) &pSMBr); | |
2414 | if (rc) | |
2415 | return rc; | |
2416 | ||
2417 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2418 | name_len = | |
50c2f753 SF |
2419 | cifs_strtoUCS((__le16 *) pSMB->FileName, searchName, |
2420 | PATH_MAX, nls_codepage); | |
1da177e4 LT |
2421 | name_len++; /* trailing null */ |
2422 | name_len *= 2; | |
50c2f753 | 2423 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2424 | name_len = strnlen(searchName, PATH_MAX); |
2425 | name_len++; /* trailing null */ | |
2426 | strncpy(pSMB->FileName, searchName, name_len); | |
2427 | } | |
2428 | ||
2429 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2430 | pSMB->TotalDataCount = 0; | |
2431 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
2432 | /* BB find exact max data count below from sess structure BB */ | |
2433 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
2434 | pSMB->MaxSetupCount = 0; | |
2435 | pSMB->Reserved = 0; | |
2436 | pSMB->Flags = 0; | |
2437 | pSMB->Timeout = 0; | |
2438 | pSMB->Reserved2 = 0; | |
2439 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 2440 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
2441 | pSMB->DataCount = 0; |
2442 | pSMB->DataOffset = 0; | |
2443 | pSMB->SetupCount = 1; | |
2444 | pSMB->Reserved3 = 0; | |
2445 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2446 | byte_count = params + 1 /* pad */ ; | |
2447 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2448 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2449 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_LINK); | |
2450 | pSMB->Reserved4 = 0; | |
2451 | pSMB->hdr.smb_buf_length += byte_count; | |
2452 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2453 | ||
2454 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2455 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2456 | if (rc) { | |
2457 | cFYI(1, ("Send error in QuerySymLinkInfo = %d", rc)); | |
2458 | } else { | |
2459 | /* decode response */ | |
2460 | ||
2461 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
2462 | if (rc || (pSMBr->ByteCount < 2)) | |
2463 | /* BB also check enough total bytes returned */ | |
2464 | rc = -EIO; /* bad smb */ | |
2465 | else { | |
2466 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2467 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2468 | ||
2469 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2470 | name_len = UniStrnlen((wchar_t *) ((char *) | |
50c2f753 SF |
2471 | &pSMBr->hdr.Protocol + data_offset), |
2472 | min_t(const int, buflen, count) / 2); | |
737b758c | 2473 | /* BB FIXME investigate remapping reserved chars here */ |
1da177e4 | 2474 | cifs_strfromUCS_le(symlinkinfo, |
50c2f753 SF |
2475 | (__le16 *) ((char *)&pSMBr->hdr.Protocol |
2476 | + data_offset), | |
1da177e4 LT |
2477 | name_len, nls_codepage); |
2478 | } else { | |
2479 | strncpy(symlinkinfo, | |
50c2f753 | 2480 | (char *) &pSMBr->hdr.Protocol + |
1da177e4 LT |
2481 | data_offset, |
2482 | min_t(const int, buflen, count)); | |
2483 | } | |
2484 | symlinkinfo[buflen] = 0; | |
2485 | /* just in case so calling code does not go off the end of buffer */ | |
2486 | } | |
2487 | } | |
2488 | cifs_buf_release(pSMB); | |
2489 | if (rc == -EAGAIN) | |
2490 | goto querySymLinkRetry; | |
2491 | return rc; | |
2492 | } | |
2493 | ||
c9489779 | 2494 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
2495 | /* Initialize NT TRANSACT SMB into small smb request buffer. |
2496 | This assumes that all NT TRANSACTS that we init here have | |
2497 | total parm and data under about 400 bytes (to fit in small cifs | |
2498 | buffer size), which is the case so far, it easily fits. NB: | |
2499 | Setup words themselves and ByteCount | |
2500 | MaxSetupCount (size of returned setup area) and | |
2501 | MaxParameterCount (returned parms size) must be set by caller */ | |
50c2f753 | 2502 | static int |
b9c7a2bb | 2503 | smb_init_nttransact(const __u16 sub_command, const int setup_count, |
0a4b92c0 | 2504 | const int parm_len, struct cifsTconInfo *tcon, |
50c2f753 | 2505 | void **ret_buf) |
0a4b92c0 SF |
2506 | { |
2507 | int rc; | |
2508 | __u32 temp_offset; | |
50c2f753 | 2509 | struct smb_com_ntransact_req *pSMB; |
0a4b92c0 SF |
2510 | |
2511 | rc = small_smb_init(SMB_COM_NT_TRANSACT, 19 + setup_count, tcon, | |
2512 | (void **)&pSMB); | |
2513 | if (rc) | |
2514 | return rc; | |
2515 | *ret_buf = (void *)pSMB; | |
2516 | pSMB->Reserved = 0; | |
2517 | pSMB->TotalParameterCount = cpu_to_le32(parm_len); | |
2518 | pSMB->TotalDataCount = 0; | |
2519 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
2520 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
2521 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2522 | pSMB->DataCount = pSMB->TotalDataCount; | |
2523 | temp_offset = offsetof(struct smb_com_ntransact_req, Parms) + | |
2524 | (setup_count * 2) - 4 /* for rfc1001 length itself */; | |
2525 | pSMB->ParameterOffset = cpu_to_le32(temp_offset); | |
2526 | pSMB->DataOffset = cpu_to_le32(temp_offset + parm_len); | |
2527 | pSMB->SetupCount = setup_count; /* no need to le convert byte fields */ | |
2528 | pSMB->SubCommand = cpu_to_le16(sub_command); | |
2529 | return 0; | |
2530 | } | |
2531 | ||
2532 | static int | |
50c2f753 | 2533 | validate_ntransact(char *buf, char **ppparm, char **ppdata, |
b9c7a2bb | 2534 | __u32 *pparmlen, __u32 *pdatalen) |
0a4b92c0 | 2535 | { |
50c2f753 | 2536 | char *end_of_smb; |
0a4b92c0 | 2537 | __u32 data_count, data_offset, parm_count, parm_offset; |
50c2f753 | 2538 | struct smb_com_ntransact_rsp *pSMBr; |
0a4b92c0 | 2539 | |
630f3f0c SF |
2540 | *pdatalen = 0; |
2541 | *pparmlen = 0; | |
2542 | ||
790fe579 | 2543 | if (buf == NULL) |
0a4b92c0 SF |
2544 | return -EINVAL; |
2545 | ||
2546 | pSMBr = (struct smb_com_ntransact_rsp *)buf; | |
2547 | ||
2548 | /* ByteCount was converted from little endian in SendReceive */ | |
50c2f753 | 2549 | end_of_smb = 2 /* sizeof byte count */ + pSMBr->ByteCount + |
0a4b92c0 SF |
2550 | (char *)&pSMBr->ByteCount; |
2551 | ||
0a4b92c0 SF |
2552 | data_offset = le32_to_cpu(pSMBr->DataOffset); |
2553 | data_count = le32_to_cpu(pSMBr->DataCount); | |
50c2f753 | 2554 | parm_offset = le32_to_cpu(pSMBr->ParameterOffset); |
0a4b92c0 SF |
2555 | parm_count = le32_to_cpu(pSMBr->ParameterCount); |
2556 | ||
2557 | *ppparm = (char *)&pSMBr->hdr.Protocol + parm_offset; | |
2558 | *ppdata = (char *)&pSMBr->hdr.Protocol + data_offset; | |
2559 | ||
2560 | /* should we also check that parm and data areas do not overlap? */ | |
790fe579 SF |
2561 | if (*ppparm > end_of_smb) { |
2562 | cFYI(1, ("parms start after end of smb")); | |
0a4b92c0 | 2563 | return -EINVAL; |
790fe579 SF |
2564 | } else if (parm_count + *ppparm > end_of_smb) { |
2565 | cFYI(1, ("parm end after end of smb")); | |
0a4b92c0 | 2566 | return -EINVAL; |
790fe579 SF |
2567 | } else if (*ppdata > end_of_smb) { |
2568 | cFYI(1, ("data starts after end of smb")); | |
0a4b92c0 | 2569 | return -EINVAL; |
790fe579 | 2570 | } else if (data_count + *ppdata > end_of_smb) { |
26f57364 | 2571 | cFYI(1, ("data %p + count %d (%p) ends after end of smb %p start %p", |
50c2f753 SF |
2572 | *ppdata, data_count, (data_count + *ppdata), |
2573 | end_of_smb, pSMBr)); | |
0a4b92c0 | 2574 | return -EINVAL; |
790fe579 SF |
2575 | } else if (parm_count + data_count > pSMBr->ByteCount) { |
2576 | cFYI(1, ("parm count and data count larger than SMB")); | |
0a4b92c0 SF |
2577 | return -EINVAL; |
2578 | } | |
630f3f0c SF |
2579 | *pdatalen = data_count; |
2580 | *pparmlen = parm_count; | |
0a4b92c0 SF |
2581 | return 0; |
2582 | } | |
c9489779 | 2583 | #endif /* CIFS_EXPERIMENTAL */ |
0a4b92c0 | 2584 | |
1da177e4 LT |
2585 | int |
2586 | CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon, | |
2587 | const unsigned char *searchName, | |
50c2f753 | 2588 | char *symlinkinfo, const int buflen, __u16 fid, |
1da177e4 LT |
2589 | const struct nls_table *nls_codepage) |
2590 | { | |
2591 | int rc = 0; | |
2592 | int bytes_returned; | |
2593 | int name_len; | |
50c2f753 SF |
2594 | struct smb_com_transaction_ioctl_req *pSMB; |
2595 | struct smb_com_transaction_ioctl_rsp *pSMBr; | |
1da177e4 LT |
2596 | |
2597 | cFYI(1, ("In Windows reparse style QueryLink for path %s", searchName)); | |
2598 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, | |
2599 | (void **) &pSMBr); | |
2600 | if (rc) | |
2601 | return rc; | |
2602 | ||
2603 | pSMB->TotalParameterCount = 0 ; | |
2604 | pSMB->TotalDataCount = 0; | |
2605 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
2606 | /* BB find exact data count max from sess structure BB */ | |
0a4b92c0 SF |
2607 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - |
2608 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
1da177e4 LT |
2609 | pSMB->MaxSetupCount = 4; |
2610 | pSMB->Reserved = 0; | |
2611 | pSMB->ParameterOffset = 0; | |
2612 | pSMB->DataCount = 0; | |
2613 | pSMB->DataOffset = 0; | |
2614 | pSMB->SetupCount = 4; | |
2615 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_IOCTL); | |
2616 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2617 | pSMB->FunctionCode = cpu_to_le32(FSCTL_GET_REPARSE_POINT); | |
2618 | pSMB->IsFsctl = 1; /* FSCTL */ | |
2619 | pSMB->IsRootFlag = 0; | |
2620 | pSMB->Fid = fid; /* file handle always le */ | |
2621 | pSMB->ByteCount = 0; | |
2622 | ||
2623 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2624 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
2625 | if (rc) { | |
2626 | cFYI(1, ("Send error in QueryReparseLinkInfo = %d", rc)); | |
2627 | } else { /* decode response */ | |
2628 | __u32 data_offset = le32_to_cpu(pSMBr->DataOffset); | |
2629 | __u32 data_count = le32_to_cpu(pSMBr->DataCount); | |
2630 | if ((pSMBr->ByteCount < 2) || (data_offset > 512)) | |
2631 | /* BB also check enough total bytes returned */ | |
2632 | rc = -EIO; /* bad smb */ | |
2633 | else { | |
790fe579 | 2634 | if (data_count && (data_count < 2048)) { |
50c2f753 | 2635 | char *end_of_smb = 2 /* sizeof byte count */ + |
0a4b92c0 SF |
2636 | pSMBr->ByteCount + |
2637 | (char *)&pSMBr->ByteCount; | |
1da177e4 | 2638 | |
50c2f753 SF |
2639 | struct reparse_data *reparse_buf = |
2640 | (struct reparse_data *) | |
2641 | ((char *)&pSMBr->hdr.Protocol | |
2642 | + data_offset); | |
790fe579 | 2643 | if ((char *)reparse_buf >= end_of_smb) { |
1da177e4 LT |
2644 | rc = -EIO; |
2645 | goto qreparse_out; | |
2646 | } | |
790fe579 | 2647 | if ((reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2648 | reparse_buf->TargetNameOffset + |
2649 | reparse_buf->TargetNameLen) > | |
2650 | end_of_smb) { | |
26f57364 | 2651 | cFYI(1, ("reparse buf beyond SMB")); |
1da177e4 LT |
2652 | rc = -EIO; |
2653 | goto qreparse_out; | |
2654 | } | |
50c2f753 | 2655 | |
1da177e4 LT |
2656 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) { |
2657 | name_len = UniStrnlen((wchar_t *) | |
50c2f753 SF |
2658 | (reparse_buf->LinkNamesBuf + |
2659 | reparse_buf->TargetNameOffset), | |
2660 | min(buflen/2, | |
2661 | reparse_buf->TargetNameLen / 2)); | |
1da177e4 | 2662 | cifs_strfromUCS_le(symlinkinfo, |
50c2f753 | 2663 | (__le16 *) (reparse_buf->LinkNamesBuf + |
1da177e4 LT |
2664 | reparse_buf->TargetNameOffset), |
2665 | name_len, nls_codepage); | |
2666 | } else { /* ASCII names */ | |
50c2f753 SF |
2667 | strncpy(symlinkinfo, |
2668 | reparse_buf->LinkNamesBuf + | |
2669 | reparse_buf->TargetNameOffset, | |
2670 | min_t(const int, buflen, | |
2671 | reparse_buf->TargetNameLen)); | |
1da177e4 LT |
2672 | } |
2673 | } else { | |
2674 | rc = -EIO; | |
63135e08 SF |
2675 | cFYI(1, ("Invalid return data count on " |
2676 | "get reparse info ioctl")); | |
1da177e4 LT |
2677 | } |
2678 | symlinkinfo[buflen] = 0; /* just in case so the caller | |
2679 | does not go off the end of the buffer */ | |
50c2f753 | 2680 | cFYI(1, ("readlink result - %s", symlinkinfo)); |
1da177e4 LT |
2681 | } |
2682 | } | |
2683 | qreparse_out: | |
4a6d87f1 | 2684 | cifs_buf_release(pSMB); |
1da177e4 LT |
2685 | |
2686 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
2687 | since file handle passed in no longer valid */ | |
2688 | ||
2689 | return rc; | |
2690 | } | |
2691 | ||
2692 | #ifdef CONFIG_CIFS_POSIX | |
2693 | ||
2694 | /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ | |
50c2f753 SF |
2695 | static void cifs_convert_ace(posix_acl_xattr_entry *ace, |
2696 | struct cifs_posix_ace *cifs_ace) | |
1da177e4 LT |
2697 | { |
2698 | /* u8 cifs fields do not need le conversion */ | |
ff7feac9 SF |
2699 | ace->e_perm = cpu_to_le16(cifs_ace->cifs_e_perm); |
2700 | ace->e_tag = cpu_to_le16(cifs_ace->cifs_e_tag); | |
2701 | ace->e_id = cpu_to_le32(le64_to_cpu(cifs_ace->cifs_uid)); | |
1da177e4 LT |
2702 | /* cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id)); */ |
2703 | ||
2704 | return; | |
2705 | } | |
2706 | ||
2707 | /* Convert ACL from CIFS POSIX wire format to local Linux POSIX ACL xattr */ | |
50c2f753 SF |
2708 | static int cifs_copy_posix_acl(char *trgt, char *src, const int buflen, |
2709 | const int acl_type, const int size_of_data_area) | |
1da177e4 LT |
2710 | { |
2711 | int size = 0; | |
2712 | int i; | |
2713 | __u16 count; | |
50c2f753 SF |
2714 | struct cifs_posix_ace *pACE; |
2715 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)src; | |
2716 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)trgt; | |
1da177e4 LT |
2717 | |
2718 | if (le16_to_cpu(cifs_acl->version) != CIFS_ACL_VERSION) | |
2719 | return -EOPNOTSUPP; | |
2720 | ||
790fe579 | 2721 | if (acl_type & ACL_TYPE_ACCESS) { |
1da177e4 LT |
2722 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2723 | pACE = &cifs_acl->ace_array[0]; | |
2724 | size = sizeof(struct cifs_posix_acl); | |
2725 | size += sizeof(struct cifs_posix_ace) * count; | |
2726 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2727 | if (size_of_data_area < size) { |
50c2f753 SF |
2728 | cFYI(1, ("bad CIFS POSIX ACL size %d vs. %d", |
2729 | size_of_data_area, size)); | |
1da177e4 LT |
2730 | return -EINVAL; |
2731 | } | |
790fe579 | 2732 | } else if (acl_type & ACL_TYPE_DEFAULT) { |
1da177e4 LT |
2733 | count = le16_to_cpu(cifs_acl->access_entry_count); |
2734 | size = sizeof(struct cifs_posix_acl); | |
2735 | size += sizeof(struct cifs_posix_ace) * count; | |
2736 | /* skip past access ACEs to get to default ACEs */ | |
2737 | pACE = &cifs_acl->ace_array[count]; | |
2738 | count = le16_to_cpu(cifs_acl->default_entry_count); | |
2739 | size += sizeof(struct cifs_posix_ace) * count; | |
2740 | /* check if we would go beyond end of SMB */ | |
790fe579 | 2741 | if (size_of_data_area < size) |
1da177e4 LT |
2742 | return -EINVAL; |
2743 | } else { | |
2744 | /* illegal type */ | |
2745 | return -EINVAL; | |
2746 | } | |
2747 | ||
2748 | size = posix_acl_xattr_size(count); | |
790fe579 | 2749 | if ((buflen == 0) || (local_acl == NULL)) { |
50c2f753 | 2750 | /* used to query ACL EA size */ |
790fe579 | 2751 | } else if (size > buflen) { |
1da177e4 LT |
2752 | return -ERANGE; |
2753 | } else /* buffer big enough */ { | |
ff7feac9 | 2754 | local_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); |
50c2f753 SF |
2755 | for (i = 0; i < count ; i++) { |
2756 | cifs_convert_ace(&local_acl->a_entries[i], pACE); | |
2757 | pACE++; | |
1da177e4 LT |
2758 | } |
2759 | } | |
2760 | return size; | |
2761 | } | |
2762 | ||
50c2f753 SF |
2763 | static __u16 convert_ace_to_cifs_ace(struct cifs_posix_ace *cifs_ace, |
2764 | const posix_acl_xattr_entry *local_ace) | |
1da177e4 LT |
2765 | { |
2766 | __u16 rc = 0; /* 0 = ACL converted ok */ | |
2767 | ||
ff7feac9 SF |
2768 | cifs_ace->cifs_e_perm = le16_to_cpu(local_ace->e_perm); |
2769 | cifs_ace->cifs_e_tag = le16_to_cpu(local_ace->e_tag); | |
1da177e4 | 2770 | /* BB is there a better way to handle the large uid? */ |
790fe579 | 2771 | if (local_ace->e_id == cpu_to_le32(-1)) { |
1da177e4 LT |
2772 | /* Probably no need to le convert -1 on any arch but can not hurt */ |
2773 | cifs_ace->cifs_uid = cpu_to_le64(-1); | |
50c2f753 | 2774 | } else |
ff7feac9 | 2775 | cifs_ace->cifs_uid = cpu_to_le64(le32_to_cpu(local_ace->e_id)); |
50c2f753 | 2776 | /*cFYI(1,("perm %d tag %d id %d",ace->e_perm,ace->e_tag,ace->e_id));*/ |
1da177e4 LT |
2777 | return rc; |
2778 | } | |
2779 | ||
2780 | /* Convert ACL from local Linux POSIX xattr to CIFS POSIX ACL wire format */ | |
50c2f753 SF |
2781 | static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL, |
2782 | const int buflen, const int acl_type) | |
1da177e4 LT |
2783 | { |
2784 | __u16 rc = 0; | |
50c2f753 SF |
2785 | struct cifs_posix_acl *cifs_acl = (struct cifs_posix_acl *)parm_data; |
2786 | posix_acl_xattr_header *local_acl = (posix_acl_xattr_header *)pACL; | |
1da177e4 LT |
2787 | int count; |
2788 | int i; | |
2789 | ||
790fe579 | 2790 | if ((buflen == 0) || (pACL == NULL) || (cifs_acl == NULL)) |
1da177e4 LT |
2791 | return 0; |
2792 | ||
2793 | count = posix_acl_xattr_count((size_t)buflen); | |
c18c842b | 2794 | cFYI(1, ("setting acl with %d entries from buf of length %d and " |
63135e08 | 2795 | "version of %d", |
ff7feac9 | 2796 | count, buflen, le32_to_cpu(local_acl->a_version))); |
790fe579 | 2797 | if (le32_to_cpu(local_acl->a_version) != 2) { |
50c2f753 | 2798 | cFYI(1, ("unknown POSIX ACL version %d", |
ff7feac9 | 2799 | le32_to_cpu(local_acl->a_version))); |
1da177e4 LT |
2800 | return 0; |
2801 | } | |
2802 | cifs_acl->version = cpu_to_le16(1); | |
790fe579 | 2803 | if (acl_type == ACL_TYPE_ACCESS) |
ff7feac9 | 2804 | cifs_acl->access_entry_count = cpu_to_le16(count); |
790fe579 | 2805 | else if (acl_type == ACL_TYPE_DEFAULT) |
ff7feac9 | 2806 | cifs_acl->default_entry_count = cpu_to_le16(count); |
1da177e4 | 2807 | else { |
50c2f753 | 2808 | cFYI(1, ("unknown ACL type %d", acl_type)); |
1da177e4 LT |
2809 | return 0; |
2810 | } | |
50c2f753 | 2811 | for (i = 0; i < count; i++) { |
1da177e4 LT |
2812 | rc = convert_ace_to_cifs_ace(&cifs_acl->ace_array[i], |
2813 | &local_acl->a_entries[i]); | |
790fe579 | 2814 | if (rc != 0) { |
1da177e4 LT |
2815 | /* ACE not converted */ |
2816 | break; | |
2817 | } | |
2818 | } | |
790fe579 | 2819 | if (rc == 0) { |
1da177e4 LT |
2820 | rc = (__u16)(count * sizeof(struct cifs_posix_ace)); |
2821 | rc += sizeof(struct cifs_posix_acl); | |
2822 | /* BB add check to make sure ACL does not overflow SMB */ | |
2823 | } | |
2824 | return rc; | |
2825 | } | |
2826 | ||
2827 | int | |
2828 | CIFSSMBGetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2829 | const unsigned char *searchName, |
2830 | char *acl_inf, const int buflen, const int acl_type, | |
2831 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2832 | { |
2833 | /* SMB_QUERY_POSIX_ACL */ | |
2834 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
2835 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
2836 | int rc = 0; | |
2837 | int bytes_returned; | |
2838 | int name_len; | |
2839 | __u16 params, byte_count; | |
50c2f753 | 2840 | |
1da177e4 LT |
2841 | cFYI(1, ("In GetPosixACL (Unix) for path %s", searchName)); |
2842 | ||
2843 | queryAclRetry: | |
2844 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
2845 | (void **) &pSMBr); | |
2846 | if (rc) | |
2847 | return rc; | |
50c2f753 | 2848 | |
1da177e4 LT |
2849 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
2850 | name_len = | |
50c2f753 | 2851 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 2852 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2853 | name_len++; /* trailing null */ |
2854 | name_len *= 2; | |
2855 | pSMB->FileName[name_len] = 0; | |
2856 | pSMB->FileName[name_len+1] = 0; | |
50c2f753 | 2857 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2858 | name_len = strnlen(searchName, PATH_MAX); |
2859 | name_len++; /* trailing null */ | |
2860 | strncpy(pSMB->FileName, searchName, name_len); | |
2861 | } | |
2862 | ||
2863 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
2864 | pSMB->TotalDataCount = 0; | |
2865 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
50c2f753 | 2866 | /* BB find exact max data count below from sess structure BB */ |
1da177e4 LT |
2867 | pSMB->MaxDataCount = cpu_to_le16(4000); |
2868 | pSMB->MaxSetupCount = 0; | |
2869 | pSMB->Reserved = 0; | |
2870 | pSMB->Flags = 0; | |
2871 | pSMB->Timeout = 0; | |
2872 | pSMB->Reserved2 = 0; | |
2873 | pSMB->ParameterOffset = cpu_to_le16( | |
50c2f753 SF |
2874 | offsetof(struct smb_com_transaction2_qpi_req, |
2875 | InformationLevel) - 4); | |
1da177e4 LT |
2876 | pSMB->DataCount = 0; |
2877 | pSMB->DataOffset = 0; | |
2878 | pSMB->SetupCount = 1; | |
2879 | pSMB->Reserved3 = 0; | |
2880 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
2881 | byte_count = params + 1 /* pad */ ; | |
2882 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
2883 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
2884 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_ACL); | |
2885 | pSMB->Reserved4 = 0; | |
2886 | pSMB->hdr.smb_buf_length += byte_count; | |
2887 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2888 | ||
2889 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
2890 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
0a4b92c0 | 2891 | cifs_stats_inc(&tcon->num_acl_get); |
1da177e4 LT |
2892 | if (rc) { |
2893 | cFYI(1, ("Send error in Query POSIX ACL = %d", rc)); | |
2894 | } else { | |
2895 | /* decode response */ | |
50c2f753 | 2896 | |
1da177e4 LT |
2897 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
2898 | if (rc || (pSMBr->ByteCount < 2)) | |
2899 | /* BB also check enough total bytes returned */ | |
2900 | rc = -EIO; /* bad smb */ | |
2901 | else { | |
2902 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
2903 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
2904 | rc = cifs_copy_posix_acl(acl_inf, | |
2905 | (char *)&pSMBr->hdr.Protocol+data_offset, | |
50c2f753 | 2906 | buflen, acl_type, count); |
1da177e4 LT |
2907 | } |
2908 | } | |
2909 | cifs_buf_release(pSMB); | |
2910 | if (rc == -EAGAIN) | |
2911 | goto queryAclRetry; | |
2912 | return rc; | |
2913 | } | |
2914 | ||
2915 | int | |
2916 | CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
2917 | const unsigned char *fileName, |
2918 | const char *local_acl, const int buflen, | |
2919 | const int acl_type, | |
2920 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
2921 | { |
2922 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
2923 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
2924 | char *parm_data; | |
2925 | int name_len; | |
2926 | int rc = 0; | |
2927 | int bytes_returned = 0; | |
2928 | __u16 params, byte_count, data_count, param_offset, offset; | |
2929 | ||
2930 | cFYI(1, ("In SetPosixACL (Unix) for path %s", fileName)); | |
2931 | setAclRetry: | |
2932 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 2933 | (void **) &pSMBr); |
1da177e4 LT |
2934 | if (rc) |
2935 | return rc; | |
2936 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
2937 | name_len = | |
50c2f753 | 2938 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 2939 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
2940 | name_len++; /* trailing null */ |
2941 | name_len *= 2; | |
50c2f753 | 2942 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
2943 | name_len = strnlen(fileName, PATH_MAX); |
2944 | name_len++; /* trailing null */ | |
2945 | strncpy(pSMB->FileName, fileName, name_len); | |
2946 | } | |
2947 | params = 6 + name_len; | |
2948 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
2949 | /* BB find max SMB size from sess */ |
2950 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
2951 | pSMB->MaxSetupCount = 0; |
2952 | pSMB->Reserved = 0; | |
2953 | pSMB->Flags = 0; | |
2954 | pSMB->Timeout = 0; | |
2955 | pSMB->Reserved2 = 0; | |
2956 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 2957 | InformationLevel) - 4; |
1da177e4 LT |
2958 | offset = param_offset + params; |
2959 | parm_data = ((char *) &pSMB->hdr.Protocol) + offset; | |
2960 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
2961 | ||
2962 | /* convert to on the wire format for POSIX ACL */ | |
50c2f753 | 2963 | data_count = ACL_to_cifs_posix(parm_data, local_acl, buflen, acl_type); |
1da177e4 | 2964 | |
790fe579 | 2965 | if (data_count == 0) { |
1da177e4 LT |
2966 | rc = -EOPNOTSUPP; |
2967 | goto setACLerrorExit; | |
2968 | } | |
2969 | pSMB->DataOffset = cpu_to_le16(offset); | |
2970 | pSMB->SetupCount = 1; | |
2971 | pSMB->Reserved3 = 0; | |
2972 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
2973 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_POSIX_ACL); | |
2974 | byte_count = 3 /* pad */ + params + data_count; | |
2975 | pSMB->DataCount = cpu_to_le16(data_count); | |
2976 | pSMB->TotalDataCount = pSMB->DataCount; | |
2977 | pSMB->ParameterCount = cpu_to_le16(params); | |
2978 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
2979 | pSMB->Reserved4 = 0; | |
2980 | pSMB->hdr.smb_buf_length += byte_count; | |
2981 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
2982 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 2983 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
ad7a2926 | 2984 | if (rc) |
1da177e4 | 2985 | cFYI(1, ("Set POSIX ACL returned %d", rc)); |
1da177e4 LT |
2986 | |
2987 | setACLerrorExit: | |
2988 | cifs_buf_release(pSMB); | |
2989 | if (rc == -EAGAIN) | |
2990 | goto setAclRetry; | |
2991 | return rc; | |
2992 | } | |
2993 | ||
f654bac2 SF |
2994 | /* BB fix tabs in this function FIXME BB */ |
2995 | int | |
2996 | CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon, | |
ad7a2926 | 2997 | const int netfid, __u64 *pExtAttrBits, __u64 *pMask) |
f654bac2 | 2998 | { |
50c2f753 SF |
2999 | int rc = 0; |
3000 | struct smb_t2_qfi_req *pSMB = NULL; | |
3001 | struct smb_t2_qfi_rsp *pSMBr = NULL; | |
3002 | int bytes_returned; | |
3003 | __u16 params, byte_count; | |
f654bac2 | 3004 | |
790fe579 SF |
3005 | cFYI(1, ("In GetExtAttr")); |
3006 | if (tcon == NULL) | |
3007 | return -ENODEV; | |
f654bac2 SF |
3008 | |
3009 | GetExtAttrRetry: | |
790fe579 SF |
3010 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
3011 | (void **) &pSMBr); | |
3012 | if (rc) | |
3013 | return rc; | |
f654bac2 | 3014 | |
ad7a2926 | 3015 | params = 2 /* level */ + 2 /* fid */; |
790fe579 SF |
3016 | pSMB->t2.TotalDataCount = 0; |
3017 | pSMB->t2.MaxParameterCount = cpu_to_le16(4); | |
3018 | /* BB find exact max data count below from sess structure BB */ | |
3019 | pSMB->t2.MaxDataCount = cpu_to_le16(4000); | |
3020 | pSMB->t2.MaxSetupCount = 0; | |
3021 | pSMB->t2.Reserved = 0; | |
3022 | pSMB->t2.Flags = 0; | |
3023 | pSMB->t2.Timeout = 0; | |
3024 | pSMB->t2.Reserved2 = 0; | |
3025 | pSMB->t2.ParameterOffset = cpu_to_le16(offsetof(struct smb_t2_qfi_req, | |
3026 | Fid) - 4); | |
3027 | pSMB->t2.DataCount = 0; | |
3028 | pSMB->t2.DataOffset = 0; | |
3029 | pSMB->t2.SetupCount = 1; | |
3030 | pSMB->t2.Reserved3 = 0; | |
3031 | pSMB->t2.SubCommand = cpu_to_le16(TRANS2_QUERY_FILE_INFORMATION); | |
3032 | byte_count = params + 1 /* pad */ ; | |
3033 | pSMB->t2.TotalParameterCount = cpu_to_le16(params); | |
3034 | pSMB->t2.ParameterCount = pSMB->t2.TotalParameterCount; | |
3035 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_ATTR_FLAGS); | |
3036 | pSMB->Pad = 0; | |
f654bac2 | 3037 | pSMB->Fid = netfid; |
790fe579 SF |
3038 | pSMB->hdr.smb_buf_length += byte_count; |
3039 | pSMB->t2.ByteCount = cpu_to_le16(byte_count); | |
3040 | ||
3041 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3042 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3043 | if (rc) { | |
3044 | cFYI(1, ("error %d in GetExtAttr", rc)); | |
3045 | } else { | |
3046 | /* decode response */ | |
3047 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3048 | if (rc || (pSMBr->ByteCount < 2)) | |
3049 | /* BB also check enough total bytes returned */ | |
3050 | /* If rc should we check for EOPNOSUPP and | |
3051 | disable the srvino flag? or in caller? */ | |
3052 | rc = -EIO; /* bad smb */ | |
3053 | else { | |
3054 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3055 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
3056 | struct file_chattr_info *pfinfo; | |
3057 | /* BB Do we need a cast or hash here ? */ | |
3058 | if (count != 16) { | |
3059 | cFYI(1, ("Illegal size ret in GetExtAttr")); | |
3060 | rc = -EIO; | |
3061 | goto GetExtAttrOut; | |
3062 | } | |
3063 | pfinfo = (struct file_chattr_info *) | |
3064 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3065 | *pExtAttrBits = le64_to_cpu(pfinfo->mode); | |
f654bac2 | 3066 | *pMask = le64_to_cpu(pfinfo->mask); |
790fe579 SF |
3067 | } |
3068 | } | |
f654bac2 | 3069 | GetExtAttrOut: |
790fe579 SF |
3070 | cifs_buf_release(pSMB); |
3071 | if (rc == -EAGAIN) | |
3072 | goto GetExtAttrRetry; | |
3073 | return rc; | |
f654bac2 SF |
3074 | } |
3075 | ||
f654bac2 | 3076 | #endif /* CONFIG_POSIX */ |
1da177e4 | 3077 | |
297647c2 | 3078 | #ifdef CONFIG_CIFS_EXPERIMENTAL |
0a4b92c0 SF |
3079 | /* Get Security Descriptor (by handle) from remote server for a file or dir */ |
3080 | int | |
3081 | CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
630f3f0c | 3082 | struct cifs_ntsd **acl_inf, __u32 *pbuflen) |
0a4b92c0 SF |
3083 | { |
3084 | int rc = 0; | |
3085 | int buf_type = 0; | |
ad7a2926 | 3086 | QUERY_SEC_DESC_REQ *pSMB; |
0a4b92c0 SF |
3087 | struct kvec iov[1]; |
3088 | ||
3089 | cFYI(1, ("GetCifsACL")); | |
3090 | ||
630f3f0c SF |
3091 | *pbuflen = 0; |
3092 | *acl_inf = NULL; | |
3093 | ||
b9c7a2bb | 3094 | rc = smb_init_nttransact(NT_TRANSACT_QUERY_SECURITY_DESC, 0, |
0a4b92c0 SF |
3095 | 8 /* parm len */, tcon, (void **) &pSMB); |
3096 | if (rc) | |
3097 | return rc; | |
3098 | ||
3099 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3100 | /* BB TEST with big acls that might need to be e.g. larger than 16K */ | |
3101 | pSMB->MaxSetupCount = 0; | |
3102 | pSMB->Fid = fid; /* file handle always le */ | |
3103 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_OWNER | CIFS_ACL_GROUP | | |
3104 | CIFS_ACL_DACL); | |
3105 | pSMB->ByteCount = cpu_to_le16(11); /* 3 bytes pad + 8 bytes parm */ | |
3106 | pSMB->hdr.smb_buf_length += 11; | |
3107 | iov[0].iov_base = (char *)pSMB; | |
3108 | iov[0].iov_len = pSMB->hdr.smb_buf_length + 4; | |
3109 | ||
a761ac57 | 3110 | rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, |
133672ef | 3111 | CIFS_STD_OP); |
0a4b92c0 SF |
3112 | cifs_stats_inc(&tcon->num_acl_get); |
3113 | if (rc) { | |
3114 | cFYI(1, ("Send error in QuerySecDesc = %d", rc)); | |
3115 | } else { /* decode response */ | |
ad7a2926 | 3116 | __le32 *parm; |
630f3f0c SF |
3117 | __u32 parm_len; |
3118 | __u32 acl_len; | |
50c2f753 | 3119 | struct smb_com_ntransact_rsp *pSMBr; |
630f3f0c | 3120 | char *pdata; |
0a4b92c0 SF |
3121 | |
3122 | /* validate_nttransact */ | |
50c2f753 | 3123 | rc = validate_ntransact(iov[0].iov_base, (char **)&parm, |
630f3f0c | 3124 | &pdata, &parm_len, pbuflen); |
790fe579 | 3125 | if (rc) |
0a4b92c0 SF |
3126 | goto qsec_out; |
3127 | pSMBr = (struct smb_com_ntransact_rsp *)iov[0].iov_base; | |
3128 | ||
630f3f0c | 3129 | cFYI(1, ("smb %p parm %p data %p", pSMBr, parm, *acl_inf)); |
0a4b92c0 SF |
3130 | |
3131 | if (le32_to_cpu(pSMBr->ParameterCount) != 4) { | |
3132 | rc = -EIO; /* bad smb */ | |
630f3f0c | 3133 | *pbuflen = 0; |
0a4b92c0 SF |
3134 | goto qsec_out; |
3135 | } | |
3136 | ||
3137 | /* BB check that data area is minimum length and as big as acl_len */ | |
3138 | ||
af6f4612 | 3139 | acl_len = le32_to_cpu(*parm); |
630f3f0c SF |
3140 | if (acl_len != *pbuflen) { |
3141 | cERROR(1, ("acl length %d does not match %d", | |
3142 | acl_len, *pbuflen)); | |
3143 | if (*pbuflen > acl_len) | |
3144 | *pbuflen = acl_len; | |
3145 | } | |
0a4b92c0 | 3146 | |
630f3f0c SF |
3147 | /* check if buffer is big enough for the acl |
3148 | header followed by the smallest SID */ | |
3149 | if ((*pbuflen < sizeof(struct cifs_ntsd) + 8) || | |
3150 | (*pbuflen >= 64 * 1024)) { | |
3151 | cERROR(1, ("bad acl length %d", *pbuflen)); | |
3152 | rc = -EINVAL; | |
3153 | *pbuflen = 0; | |
3154 | } else { | |
3155 | *acl_inf = kmalloc(*pbuflen, GFP_KERNEL); | |
3156 | if (*acl_inf == NULL) { | |
3157 | *pbuflen = 0; | |
3158 | rc = -ENOMEM; | |
3159 | } | |
3160 | memcpy(*acl_inf, pdata, *pbuflen); | |
3161 | } | |
0a4b92c0 SF |
3162 | } |
3163 | qsec_out: | |
790fe579 | 3164 | if (buf_type == CIFS_SMALL_BUFFER) |
0a4b92c0 | 3165 | cifs_small_buf_release(iov[0].iov_base); |
790fe579 | 3166 | else if (buf_type == CIFS_LARGE_BUFFER) |
0a4b92c0 | 3167 | cifs_buf_release(iov[0].iov_base); |
4b8f930f | 3168 | /* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */ |
0a4b92c0 SF |
3169 | return rc; |
3170 | } | |
97837582 SF |
3171 | |
3172 | int | |
3173 | CIFSSMBSetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, | |
3174 | struct cifs_ntsd *pntsd, __u32 acllen) | |
3175 | { | |
3176 | __u16 byte_count, param_count, data_count, param_offset, data_offset; | |
3177 | int rc = 0; | |
3178 | int bytes_returned = 0; | |
3179 | SET_SEC_DESC_REQ *pSMB = NULL; | |
3180 | NTRANSACT_RSP *pSMBr = NULL; | |
3181 | ||
3182 | setCifsAclRetry: | |
3183 | rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, | |
3184 | (void **) &pSMBr); | |
3185 | if (rc) | |
3186 | return (rc); | |
3187 | ||
3188 | pSMB->MaxSetupCount = 0; | |
3189 | pSMB->Reserved = 0; | |
3190 | ||
3191 | param_count = 8; | |
3192 | param_offset = offsetof(struct smb_com_transaction_ssec_req, Fid) - 4; | |
3193 | data_count = acllen; | |
3194 | data_offset = param_offset + param_count; | |
3195 | byte_count = 3 /* pad */ + param_count; | |
3196 | ||
3197 | pSMB->DataCount = cpu_to_le32(data_count); | |
3198 | pSMB->TotalDataCount = pSMB->DataCount; | |
3199 | pSMB->MaxParameterCount = cpu_to_le32(4); | |
3200 | pSMB->MaxDataCount = cpu_to_le32(16384); | |
3201 | pSMB->ParameterCount = cpu_to_le32(param_count); | |
3202 | pSMB->ParameterOffset = cpu_to_le32(param_offset); | |
3203 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
3204 | pSMB->DataOffset = cpu_to_le32(data_offset); | |
3205 | pSMB->SetupCount = 0; | |
3206 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_SET_SECURITY_DESC); | |
3207 | pSMB->ByteCount = cpu_to_le16(byte_count+data_count); | |
3208 | ||
3209 | pSMB->Fid = fid; /* file handle always le */ | |
3210 | pSMB->Reserved2 = 0; | |
3211 | pSMB->AclFlags = cpu_to_le32(CIFS_ACL_DACL); | |
3212 | ||
3213 | if (pntsd && acllen) { | |
3214 | memcpy((char *) &pSMBr->hdr.Protocol + data_offset, | |
3215 | (char *) pntsd, | |
3216 | acllen); | |
3217 | pSMB->hdr.smb_buf_length += (byte_count + data_count); | |
3218 | ||
3219 | } else | |
3220 | pSMB->hdr.smb_buf_length += byte_count; | |
3221 | ||
3222 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3223 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3224 | ||
3225 | cFYI(1, ("SetCIFSACL bytes_returned: %d, rc: %d", bytes_returned, rc)); | |
3226 | if (rc) | |
3227 | cFYI(1, ("Set CIFS ACL returned %d", rc)); | |
3228 | cifs_buf_release(pSMB); | |
3229 | ||
3230 | if (rc == -EAGAIN) | |
3231 | goto setCifsAclRetry; | |
3232 | ||
3233 | return (rc); | |
3234 | } | |
3235 | ||
297647c2 | 3236 | #endif /* CONFIG_CIFS_EXPERIMENTAL */ |
0a4b92c0 | 3237 | |
6b8edfe0 SF |
3238 | /* Legacy Query Path Information call for lookup to old servers such |
3239 | as Win9x/WinME */ | |
3240 | int SMBQueryInformation(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 SF |
3241 | const unsigned char *searchName, |
3242 | FILE_ALL_INFO *pFinfo, | |
3243 | const struct nls_table *nls_codepage, int remap) | |
6b8edfe0 | 3244 | { |
ad7a2926 SF |
3245 | QUERY_INFORMATION_REQ *pSMB; |
3246 | QUERY_INFORMATION_RSP *pSMBr; | |
6b8edfe0 SF |
3247 | int rc = 0; |
3248 | int bytes_returned; | |
3249 | int name_len; | |
3250 | ||
50c2f753 | 3251 | cFYI(1, ("In SMBQPath path %s", searchName)); |
6b8edfe0 SF |
3252 | QInfRetry: |
3253 | rc = smb_init(SMB_COM_QUERY_INFORMATION, 0, tcon, (void **) &pSMB, | |
50c2f753 | 3254 | (void **) &pSMBr); |
6b8edfe0 SF |
3255 | if (rc) |
3256 | return rc; | |
3257 | ||
3258 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3259 | name_len = | |
50c2f753 SF |
3260 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
3261 | PATH_MAX, nls_codepage, remap); | |
6b8edfe0 SF |
3262 | name_len++; /* trailing null */ |
3263 | name_len *= 2; | |
50c2f753 | 3264 | } else { |
6b8edfe0 SF |
3265 | name_len = strnlen(searchName, PATH_MAX); |
3266 | name_len++; /* trailing null */ | |
3267 | strncpy(pSMB->FileName, searchName, name_len); | |
3268 | } | |
3269 | pSMB->BufferFormat = 0x04; | |
50c2f753 | 3270 | name_len++; /* account for buffer type byte */ |
6b8edfe0 SF |
3271 | pSMB->hdr.smb_buf_length += (__u16) name_len; |
3272 | pSMB->ByteCount = cpu_to_le16(name_len); | |
3273 | ||
3274 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
50c2f753 | 3275 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); |
6b8edfe0 SF |
3276 | if (rc) { |
3277 | cFYI(1, ("Send error in QueryInfo = %d", rc)); | |
ad7a2926 | 3278 | } else if (pFinfo) { |
1bd5bbcb SF |
3279 | struct timespec ts; |
3280 | __u32 time = le32_to_cpu(pSMBr->last_write_time); | |
ad7a2926 SF |
3281 | |
3282 | /* decode response */ | |
1bd5bbcb | 3283 | /* BB FIXME - add time zone adjustment BB */ |
6b8edfe0 | 3284 | memset(pFinfo, 0, sizeof(FILE_ALL_INFO)); |
1bd5bbcb SF |
3285 | ts.tv_nsec = 0; |
3286 | ts.tv_sec = time; | |
3287 | /* decode time fields */ | |
733f99ac | 3288 | pFinfo->ChangeTime = cpu_to_le64(cifs_UnixTimeToNT(ts)); |
1bd5bbcb SF |
3289 | pFinfo->LastWriteTime = pFinfo->ChangeTime; |
3290 | pFinfo->LastAccessTime = 0; | |
70ca734a SF |
3291 | pFinfo->AllocationSize = |
3292 | cpu_to_le64(le32_to_cpu(pSMBr->size)); | |
3293 | pFinfo->EndOfFile = pFinfo->AllocationSize; | |
3294 | pFinfo->Attributes = | |
3295 | cpu_to_le32(le16_to_cpu(pSMBr->attr)); | |
6b8edfe0 SF |
3296 | } else |
3297 | rc = -EIO; /* bad buffer passed in */ | |
3298 | ||
3299 | cifs_buf_release(pSMB); | |
3300 | ||
3301 | if (rc == -EAGAIN) | |
3302 | goto QInfRetry; | |
3303 | ||
3304 | return rc; | |
3305 | } | |
3306 | ||
3307 | ||
3308 | ||
3309 | ||
1da177e4 LT |
3310 | int |
3311 | CIFSSMBQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3312 | const unsigned char *searchName, | |
ad7a2926 | 3313 | FILE_ALL_INFO *pFindData, |
acf1a1b1 | 3314 | int legacy /* old style infolevel */, |
737b758c | 3315 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3316 | { |
3317 | /* level 263 SMB_QUERY_FILE_ALL_INFO */ | |
3318 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3319 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3320 | int rc = 0; | |
3321 | int bytes_returned; | |
3322 | int name_len; | |
3323 | __u16 params, byte_count; | |
3324 | ||
3325 | /* cFYI(1, ("In QPathInfo path %s", searchName)); */ | |
3326 | QPathInfoRetry: | |
3327 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3328 | (void **) &pSMBr); | |
3329 | if (rc) | |
3330 | return rc; | |
3331 | ||
3332 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3333 | name_len = | |
50c2f753 | 3334 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3335 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3336 | name_len++; /* trailing null */ |
3337 | name_len *= 2; | |
50c2f753 | 3338 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3339 | name_len = strnlen(searchName, PATH_MAX); |
3340 | name_len++; /* trailing null */ | |
3341 | strncpy(pSMB->FileName, searchName, name_len); | |
3342 | } | |
3343 | ||
50c2f753 | 3344 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3345 | pSMB->TotalDataCount = 0; |
3346 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
3347 | /* BB find exact max SMB PDU from sess structure BB */ |
3348 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
3349 | pSMB->MaxSetupCount = 0; |
3350 | pSMB->Reserved = 0; | |
3351 | pSMB->Flags = 0; | |
3352 | pSMB->Timeout = 0; | |
3353 | pSMB->Reserved2 = 0; | |
3354 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3355 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3356 | pSMB->DataCount = 0; |
3357 | pSMB->DataOffset = 0; | |
3358 | pSMB->SetupCount = 1; | |
3359 | pSMB->Reserved3 = 0; | |
3360 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3361 | byte_count = params + 1 /* pad */ ; | |
3362 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3363 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 3364 | if (legacy) |
acf1a1b1 SF |
3365 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_STANDARD); |
3366 | else | |
3367 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_ALL_INFO); | |
1da177e4 LT |
3368 | pSMB->Reserved4 = 0; |
3369 | pSMB->hdr.smb_buf_length += byte_count; | |
3370 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3371 | ||
3372 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3373 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3374 | if (rc) { | |
3375 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3376 | } else { /* decode response */ | |
3377 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3378 | ||
acf1a1b1 SF |
3379 | if (rc) /* BB add auto retry on EOPNOTSUPP? */ |
3380 | rc = -EIO; | |
50c2f753 | 3381 | else if (!legacy && (pSMBr->ByteCount < 40)) |
1da177e4 | 3382 | rc = -EIO; /* bad smb */ |
790fe579 | 3383 | else if (legacy && (pSMBr->ByteCount < 24)) |
50c2f753 SF |
3384 | rc = -EIO; /* 24 or 26 expected but we do not read |
3385 | last field */ | |
3386 | else if (pFindData) { | |
acf1a1b1 | 3387 | int size; |
1da177e4 | 3388 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
ad7a2926 SF |
3389 | |
3390 | /* On legacy responses we do not read the last field, | |
3391 | EAsize, fortunately since it varies by subdialect and | |
3392 | also note it differs on Set vs. Get, ie two bytes or 4 | |
3393 | bytes depending but we don't care here */ | |
3394 | if (legacy) | |
acf1a1b1 SF |
3395 | size = sizeof(FILE_INFO_STANDARD); |
3396 | else | |
3397 | size = sizeof(FILE_ALL_INFO); | |
1da177e4 LT |
3398 | memcpy((char *) pFindData, |
3399 | (char *) &pSMBr->hdr.Protocol + | |
acf1a1b1 | 3400 | data_offset, size); |
1da177e4 LT |
3401 | } else |
3402 | rc = -ENOMEM; | |
3403 | } | |
3404 | cifs_buf_release(pSMB); | |
3405 | if (rc == -EAGAIN) | |
3406 | goto QPathInfoRetry; | |
3407 | ||
3408 | return rc; | |
3409 | } | |
3410 | ||
3411 | int | |
3412 | CIFSSMBUnixQPathInfo(const int xid, struct cifsTconInfo *tcon, | |
3413 | const unsigned char *searchName, | |
582d21e5 | 3414 | FILE_UNIX_BASIC_INFO *pFindData, |
737b758c | 3415 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3416 | { |
3417 | /* SMB_QUERY_FILE_UNIX_BASIC */ | |
3418 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3419 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3420 | int rc = 0; | |
3421 | int bytes_returned = 0; | |
3422 | int name_len; | |
3423 | __u16 params, byte_count; | |
3424 | ||
3425 | cFYI(1, ("In QPathInfo (Unix) the path %s", searchName)); | |
3426 | UnixQPathInfoRetry: | |
3427 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3428 | (void **) &pSMBr); | |
3429 | if (rc) | |
3430 | return rc; | |
3431 | ||
3432 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3433 | name_len = | |
b1a45695 | 3434 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 3435 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3436 | name_len++; /* trailing null */ |
3437 | name_len *= 2; | |
50c2f753 | 3438 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3439 | name_len = strnlen(searchName, PATH_MAX); |
3440 | name_len++; /* trailing null */ | |
3441 | strncpy(pSMB->FileName, searchName, name_len); | |
3442 | } | |
3443 | ||
50c2f753 | 3444 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
3445 | pSMB->TotalDataCount = 0; |
3446 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3447 | /* BB find exact max SMB PDU from sess structure BB */ | |
50c2f753 | 3448 | pSMB->MaxDataCount = cpu_to_le16(4000); |
1da177e4 LT |
3449 | pSMB->MaxSetupCount = 0; |
3450 | pSMB->Reserved = 0; | |
3451 | pSMB->Flags = 0; | |
3452 | pSMB->Timeout = 0; | |
3453 | pSMB->Reserved2 = 0; | |
3454 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3455 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3456 | pSMB->DataCount = 0; |
3457 | pSMB->DataOffset = 0; | |
3458 | pSMB->SetupCount = 1; | |
3459 | pSMB->Reserved3 = 0; | |
3460 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3461 | byte_count = params + 1 /* pad */ ; | |
3462 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3463 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3464 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_UNIX_BASIC); | |
3465 | pSMB->Reserved4 = 0; | |
3466 | pSMB->hdr.smb_buf_length += byte_count; | |
3467 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3468 | ||
3469 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3470 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3471 | if (rc) { | |
3472 | cFYI(1, ("Send error in QPathInfo = %d", rc)); | |
3473 | } else { /* decode response */ | |
3474 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3475 | ||
3476 | if (rc || (pSMBr->ByteCount < sizeof(FILE_UNIX_BASIC_INFO))) { | |
1e71f25d SF |
3477 | cERROR(1, ("Malformed FILE_UNIX_BASIC_INFO response.\n" |
3478 | "Unix Extensions can be disabled on mount " | |
3479 | "by specifying the nosfu mount option.")); | |
1da177e4 LT |
3480 | rc = -EIO; /* bad smb */ |
3481 | } else { | |
3482 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
3483 | memcpy((char *) pFindData, | |
3484 | (char *) &pSMBr->hdr.Protocol + | |
3485 | data_offset, | |
630f3f0c | 3486 | sizeof(FILE_UNIX_BASIC_INFO)); |
1da177e4 LT |
3487 | } |
3488 | } | |
3489 | cifs_buf_release(pSMB); | |
3490 | if (rc == -EAGAIN) | |
3491 | goto UnixQPathInfoRetry; | |
3492 | ||
3493 | return rc; | |
3494 | } | |
3495 | ||
1da177e4 LT |
3496 | /* xid, tcon, searchName and codepage are input parms, rest are returned */ |
3497 | int | |
3498 | CIFSFindFirst(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3499 | const char *searchName, |
1da177e4 | 3500 | const struct nls_table *nls_codepage, |
50c2f753 SF |
3501 | __u16 *pnetfid, |
3502 | struct cifs_search_info *psrch_inf, int remap, const char dirsep) | |
1da177e4 LT |
3503 | { |
3504 | /* level 257 SMB_ */ | |
3505 | TRANSACTION2_FFIRST_REQ *pSMB = NULL; | |
3506 | TRANSACTION2_FFIRST_RSP *pSMBr = NULL; | |
ad7a2926 | 3507 | T2_FFIRST_RSP_PARMS *parms; |
1da177e4 LT |
3508 | int rc = 0; |
3509 | int bytes_returned = 0; | |
3510 | int name_len; | |
3511 | __u16 params, byte_count; | |
3512 | ||
50c2f753 | 3513 | cFYI(1, ("In FindFirst for %s", searchName)); |
1da177e4 LT |
3514 | |
3515 | findFirstRetry: | |
3516 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3517 | (void **) &pSMBr); | |
3518 | if (rc) | |
3519 | return rc; | |
3520 | ||
3521 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
3522 | name_len = | |
50c2f753 | 3523 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c SF |
3524 | PATH_MAX, nls_codepage, remap); |
3525 | /* We can not add the asterik earlier in case | |
3526 | it got remapped to 0xF03A as if it were part of the | |
3527 | directory name instead of a wildcard */ | |
1da177e4 | 3528 | name_len *= 2; |
ac67055e | 3529 | pSMB->FileName[name_len] = dirsep; |
737b758c SF |
3530 | pSMB->FileName[name_len+1] = 0; |
3531 | pSMB->FileName[name_len+2] = '*'; | |
3532 | pSMB->FileName[name_len+3] = 0; | |
3533 | name_len += 4; /* now the trailing null */ | |
1da177e4 LT |
3534 | pSMB->FileName[name_len] = 0; /* null terminate just in case */ |
3535 | pSMB->FileName[name_len+1] = 0; | |
737b758c | 3536 | name_len += 2; |
1da177e4 LT |
3537 | } else { /* BB add check for overrun of SMB buf BB */ |
3538 | name_len = strnlen(searchName, PATH_MAX); | |
1da177e4 | 3539 | /* BB fix here and in unicode clause above ie |
790fe579 | 3540 | if (name_len > buffersize-header) |
1da177e4 LT |
3541 | free buffer exit; BB */ |
3542 | strncpy(pSMB->FileName, searchName, name_len); | |
ac67055e | 3543 | pSMB->FileName[name_len] = dirsep; |
68575476 SF |
3544 | pSMB->FileName[name_len+1] = '*'; |
3545 | pSMB->FileName[name_len+2] = 0; | |
3546 | name_len += 3; | |
1da177e4 LT |
3547 | } |
3548 | ||
3549 | params = 12 + name_len /* includes null */ ; | |
3550 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3551 | pSMB->MaxParameterCount = cpu_to_le16(10); | |
3552 | pSMB->MaxDataCount = cpu_to_le16((tcon->ses->server->maxBuf - | |
3553 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
3554 | pSMB->MaxSetupCount = 0; | |
3555 | pSMB->Reserved = 0; | |
3556 | pSMB->Flags = 0; | |
3557 | pSMB->Timeout = 0; | |
3558 | pSMB->Reserved2 = 0; | |
3559 | byte_count = params + 1 /* pad */ ; | |
3560 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3561 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3562 | pSMB->ParameterOffset = cpu_to_le16( | |
88274815 SF |
3563 | offsetof(struct smb_com_transaction2_ffirst_req, SearchAttributes) |
3564 | - 4); | |
1da177e4 LT |
3565 | pSMB->DataCount = 0; |
3566 | pSMB->DataOffset = 0; | |
3567 | pSMB->SetupCount = 1; /* one byte, no need to make endian neutral */ | |
3568 | pSMB->Reserved3 = 0; | |
3569 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_FIRST); | |
3570 | pSMB->SearchAttributes = | |
3571 | cpu_to_le16(ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | | |
3572 | ATTR_DIRECTORY); | |
50c2f753 SF |
3573 | pSMB->SearchCount = cpu_to_le16(CIFSMaxBufSize/sizeof(FILE_UNIX_INFO)); |
3574 | pSMB->SearchFlags = cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | | |
1da177e4 LT |
3575 | CIFS_SEARCH_RETURN_RESUME); |
3576 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); | |
3577 | ||
3578 | /* BB what should we set StorageType to? Does it matter? BB */ | |
3579 | pSMB->SearchStorageType = 0; | |
3580 | pSMB->hdr.smb_buf_length += byte_count; | |
3581 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3582 | ||
3583 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3584 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3585 | cifs_stats_inc(&tcon->num_ffirst); |
1da177e4 | 3586 | |
88274815 SF |
3587 | if (rc) {/* BB add logic to retry regular search if Unix search |
3588 | rejected unexpectedly by server */ | |
1da177e4 LT |
3589 | /* BB Add code to handle unsupported level rc */ |
3590 | cFYI(1, ("Error in FindFirst = %d", rc)); | |
1982c344 | 3591 | |
88274815 | 3592 | cifs_buf_release(pSMB); |
1da177e4 LT |
3593 | |
3594 | /* BB eventually could optimize out free and realloc of buf */ | |
3595 | /* for this case */ | |
3596 | if (rc == -EAGAIN) | |
3597 | goto findFirstRetry; | |
3598 | } else { /* decode response */ | |
3599 | /* BB remember to free buffer if error BB */ | |
3600 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
790fe579 | 3601 | if (rc == 0) { |
b77d753c SF |
3602 | unsigned int lnoff; |
3603 | ||
1da177e4 | 3604 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
4b18f2a9 | 3605 | psrch_inf->unicode = true; |
1da177e4 | 3606 | else |
4b18f2a9 | 3607 | psrch_inf->unicode = false; |
1da177e4 LT |
3608 | |
3609 | psrch_inf->ntwrk_buf_start = (char *)pSMBr; | |
d47d7c1a | 3610 | psrch_inf->smallBuf = 0; |
50c2f753 SF |
3611 | psrch_inf->srch_entries_start = |
3612 | (char *) &pSMBr->hdr.Protocol + | |
1da177e4 | 3613 | le16_to_cpu(pSMBr->t2.DataOffset); |
1da177e4 LT |
3614 | parms = (T2_FFIRST_RSP_PARMS *)((char *) &pSMBr->hdr.Protocol + |
3615 | le16_to_cpu(pSMBr->t2.ParameterOffset)); | |
3616 | ||
790fe579 | 3617 | if (parms->EndofSearch) |
4b18f2a9 | 3618 | psrch_inf->endOfSearch = true; |
1da177e4 | 3619 | else |
4b18f2a9 | 3620 | psrch_inf->endOfSearch = false; |
1da177e4 | 3621 | |
50c2f753 SF |
3622 | psrch_inf->entries_in_buffer = |
3623 | le16_to_cpu(parms->SearchCount); | |
60808233 | 3624 | psrch_inf->index_of_last_entry = 2 /* skip . and .. */ + |
1da177e4 | 3625 | psrch_inf->entries_in_buffer; |
b77d753c SF |
3626 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3627 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3628 | lnoff) { | |
3629 | cERROR(1, ("ignoring corrupt resume name")); | |
3630 | psrch_inf->last_entry = NULL; | |
3631 | return rc; | |
3632 | } | |
3633 | ||
0752f152 | 3634 | psrch_inf->last_entry = psrch_inf->srch_entries_start + |
b77d753c SF |
3635 | lnoff; |
3636 | ||
1da177e4 LT |
3637 | *pnetfid = parms->SearchHandle; |
3638 | } else { | |
3639 | cifs_buf_release(pSMB); | |
3640 | } | |
3641 | } | |
3642 | ||
3643 | return rc; | |
3644 | } | |
3645 | ||
3646 | int CIFSFindNext(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3647 | __u16 searchHandle, struct cifs_search_info *psrch_inf) |
1da177e4 LT |
3648 | { |
3649 | TRANSACTION2_FNEXT_REQ *pSMB = NULL; | |
3650 | TRANSACTION2_FNEXT_RSP *pSMBr = NULL; | |
ad7a2926 | 3651 | T2_FNEXT_RSP_PARMS *parms; |
1da177e4 LT |
3652 | char *response_data; |
3653 | int rc = 0; | |
3654 | int bytes_returned, name_len; | |
3655 | __u16 params, byte_count; | |
3656 | ||
3657 | cFYI(1, ("In FindNext")); | |
3658 | ||
4b18f2a9 | 3659 | if (psrch_inf->endOfSearch) |
1da177e4 LT |
3660 | return -ENOENT; |
3661 | ||
3662 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
3663 | (void **) &pSMBr); | |
3664 | if (rc) | |
3665 | return rc; | |
3666 | ||
50c2f753 | 3667 | params = 14; /* includes 2 bytes of null string, converted to LE below*/ |
1da177e4 LT |
3668 | byte_count = 0; |
3669 | pSMB->TotalDataCount = 0; /* no EAs */ | |
3670 | pSMB->MaxParameterCount = cpu_to_le16(8); | |
3671 | pSMB->MaxDataCount = | |
50c2f753 SF |
3672 | cpu_to_le16((tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE) & |
3673 | 0xFFFFFF00); | |
1da177e4 LT |
3674 | pSMB->MaxSetupCount = 0; |
3675 | pSMB->Reserved = 0; | |
3676 | pSMB->Flags = 0; | |
3677 | pSMB->Timeout = 0; | |
3678 | pSMB->Reserved2 = 0; | |
3679 | pSMB->ParameterOffset = cpu_to_le16( | |
3680 | offsetof(struct smb_com_transaction2_fnext_req,SearchHandle) - 4); | |
3681 | pSMB->DataCount = 0; | |
3682 | pSMB->DataOffset = 0; | |
3683 | pSMB->SetupCount = 1; | |
3684 | pSMB->Reserved3 = 0; | |
3685 | pSMB->SubCommand = cpu_to_le16(TRANS2_FIND_NEXT); | |
3686 | pSMB->SearchHandle = searchHandle; /* always kept as le */ | |
3687 | pSMB->SearchCount = | |
630f3f0c | 3688 | cpu_to_le16(CIFSMaxBufSize / sizeof(FILE_UNIX_INFO)); |
1da177e4 LT |
3689 | pSMB->InformationLevel = cpu_to_le16(psrch_inf->info_level); |
3690 | pSMB->ResumeKey = psrch_inf->resume_key; | |
3691 | pSMB->SearchFlags = | |
3692 | cpu_to_le16(CIFS_SEARCH_CLOSE_AT_END | CIFS_SEARCH_RETURN_RESUME); | |
3693 | ||
3694 | name_len = psrch_inf->resume_name_len; | |
3695 | params += name_len; | |
790fe579 | 3696 | if (name_len < PATH_MAX) { |
1da177e4 LT |
3697 | memcpy(pSMB->ResumeFileName, psrch_inf->presume_name, name_len); |
3698 | byte_count += name_len; | |
ef6724e3 SF |
3699 | /* 14 byte parm len above enough for 2 byte null terminator */ |
3700 | pSMB->ResumeFileName[name_len] = 0; | |
3701 | pSMB->ResumeFileName[name_len+1] = 0; | |
1da177e4 LT |
3702 | } else { |
3703 | rc = -EINVAL; | |
3704 | goto FNext2_err_exit; | |
3705 | } | |
3706 | byte_count = params + 1 /* pad */ ; | |
3707 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3708 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3709 | pSMB->hdr.smb_buf_length += byte_count; | |
3710 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 3711 | |
1da177e4 LT |
3712 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, |
3713 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
a4544347 | 3714 | cifs_stats_inc(&tcon->num_fnext); |
1da177e4 LT |
3715 | if (rc) { |
3716 | if (rc == -EBADF) { | |
4b18f2a9 | 3717 | psrch_inf->endOfSearch = true; |
6353450a | 3718 | cifs_buf_release(pSMB); |
50c2f753 | 3719 | rc = 0; /* search probably was closed at end of search*/ |
1da177e4 LT |
3720 | } else |
3721 | cFYI(1, ("FindNext returned = %d", rc)); | |
3722 | } else { /* decode response */ | |
3723 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
50c2f753 | 3724 | |
790fe579 | 3725 | if (rc == 0) { |
b77d753c SF |
3726 | unsigned int lnoff; |
3727 | ||
1da177e4 LT |
3728 | /* BB fixme add lock for file (srch_info) struct here */ |
3729 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) | |
4b18f2a9 | 3730 | psrch_inf->unicode = true; |
1da177e4 | 3731 | else |
4b18f2a9 | 3732 | psrch_inf->unicode = false; |
1da177e4 LT |
3733 | response_data = (char *) &pSMBr->hdr.Protocol + |
3734 | le16_to_cpu(pSMBr->t2.ParameterOffset); | |
3735 | parms = (T2_FNEXT_RSP_PARMS *)response_data; | |
3736 | response_data = (char *)&pSMBr->hdr.Protocol + | |
3737 | le16_to_cpu(pSMBr->t2.DataOffset); | |
790fe579 | 3738 | if (psrch_inf->smallBuf) |
d47d7c1a SF |
3739 | cifs_small_buf_release( |
3740 | psrch_inf->ntwrk_buf_start); | |
3741 | else | |
3742 | cifs_buf_release(psrch_inf->ntwrk_buf_start); | |
1da177e4 LT |
3743 | psrch_inf->srch_entries_start = response_data; |
3744 | psrch_inf->ntwrk_buf_start = (char *)pSMB; | |
d47d7c1a | 3745 | psrch_inf->smallBuf = 0; |
790fe579 | 3746 | if (parms->EndofSearch) |
4b18f2a9 | 3747 | psrch_inf->endOfSearch = true; |
1da177e4 | 3748 | else |
4b18f2a9 | 3749 | psrch_inf->endOfSearch = false; |
50c2f753 SF |
3750 | psrch_inf->entries_in_buffer = |
3751 | le16_to_cpu(parms->SearchCount); | |
1da177e4 LT |
3752 | psrch_inf->index_of_last_entry += |
3753 | psrch_inf->entries_in_buffer; | |
b77d753c SF |
3754 | lnoff = le16_to_cpu(parms->LastNameOffset); |
3755 | if (tcon->ses->server->maxBuf - MAX_CIFS_HDR_SIZE < | |
3756 | lnoff) { | |
3757 | cERROR(1, ("ignoring corrupt resume name")); | |
3758 | psrch_inf->last_entry = NULL; | |
3759 | return rc; | |
3760 | } else | |
3761 | psrch_inf->last_entry = | |
3762 | psrch_inf->srch_entries_start + lnoff; | |
3763 | ||
50c2f753 SF |
3764 | /* cFYI(1,("fnxt2 entries in buf %d index_of_last %d", |
3765 | psrch_inf->entries_in_buffer, psrch_inf->index_of_last_entry)); */ | |
1da177e4 LT |
3766 | |
3767 | /* BB fixme add unlock here */ | |
3768 | } | |
3769 | ||
3770 | } | |
3771 | ||
3772 | /* BB On error, should we leave previous search buf (and count and | |
3773 | last entry fields) intact or free the previous one? */ | |
3774 | ||
3775 | /* Note: On -EAGAIN error only caller can retry on handle based calls | |
3776 | since file handle passed in no longer valid */ | |
3777 | FNext2_err_exit: | |
3778 | if (rc != 0) | |
3779 | cifs_buf_release(pSMB); | |
1da177e4 LT |
3780 | return rc; |
3781 | } | |
3782 | ||
3783 | int | |
50c2f753 SF |
3784 | CIFSFindClose(const int xid, struct cifsTconInfo *tcon, |
3785 | const __u16 searchHandle) | |
1da177e4 LT |
3786 | { |
3787 | int rc = 0; | |
3788 | FINDCLOSE_REQ *pSMB = NULL; | |
1da177e4 LT |
3789 | |
3790 | cFYI(1, ("In CIFSSMBFindClose")); | |
3791 | rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB); | |
3792 | ||
3793 | /* no sense returning error if session restarted | |
3794 | as file handle has been closed */ | |
790fe579 | 3795 | if (rc == -EAGAIN) |
1da177e4 LT |
3796 | return 0; |
3797 | if (rc) | |
3798 | return rc; | |
3799 | ||
1da177e4 LT |
3800 | pSMB->FileID = searchHandle; |
3801 | pSMB->ByteCount = 0; | |
133672ef | 3802 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 3803 | if (rc) |
1da177e4 | 3804 | cERROR(1, ("Send error in FindClose = %d", rc)); |
ad7a2926 | 3805 | |
a4544347 | 3806 | cifs_stats_inc(&tcon->num_fclose); |
1da177e4 LT |
3807 | |
3808 | /* Since session is dead, search handle closed on server already */ | |
3809 | if (rc == -EAGAIN) | |
3810 | rc = 0; | |
3811 | ||
3812 | return rc; | |
3813 | } | |
3814 | ||
1da177e4 LT |
3815 | int |
3816 | CIFSGetSrvInodeNumber(const int xid, struct cifsTconInfo *tcon, | |
50c2f753 | 3817 | const unsigned char *searchName, |
ad7a2926 | 3818 | __u64 *inode_number, |
50c2f753 | 3819 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
3820 | { |
3821 | int rc = 0; | |
3822 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
3823 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
3824 | int name_len, bytes_returned; | |
3825 | __u16 params, byte_count; | |
3826 | ||
50c2f753 | 3827 | cFYI(1, ("In GetSrvInodeNum for %s", searchName)); |
790fe579 | 3828 | if (tcon == NULL) |
50c2f753 | 3829 | return -ENODEV; |
1da177e4 LT |
3830 | |
3831 | GetInodeNumberRetry: | |
3832 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
50c2f753 | 3833 | (void **) &pSMBr); |
1da177e4 LT |
3834 | if (rc) |
3835 | return rc; | |
3836 | ||
1da177e4 LT |
3837 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { |
3838 | name_len = | |
b1a45695 | 3839 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
50c2f753 | 3840 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
3841 | name_len++; /* trailing null */ |
3842 | name_len *= 2; | |
50c2f753 | 3843 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
3844 | name_len = strnlen(searchName, PATH_MAX); |
3845 | name_len++; /* trailing null */ | |
3846 | strncpy(pSMB->FileName, searchName, name_len); | |
3847 | } | |
3848 | ||
3849 | params = 2 /* level */ + 4 /* rsrvd */ + name_len /* incl null */ ; | |
3850 | pSMB->TotalDataCount = 0; | |
3851 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
3852 | /* BB find exact max data count below from sess structure BB */ | |
3853 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
3854 | pSMB->MaxSetupCount = 0; | |
3855 | pSMB->Reserved = 0; | |
3856 | pSMB->Flags = 0; | |
3857 | pSMB->Timeout = 0; | |
3858 | pSMB->Reserved2 = 0; | |
3859 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 3860 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
3861 | pSMB->DataCount = 0; |
3862 | pSMB->DataOffset = 0; | |
3863 | pSMB->SetupCount = 1; | |
3864 | pSMB->Reserved3 = 0; | |
3865 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
3866 | byte_count = params + 1 /* pad */ ; | |
3867 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
3868 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
3869 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FILE_INTERNAL_INFO); | |
3870 | pSMB->Reserved4 = 0; | |
3871 | pSMB->hdr.smb_buf_length += byte_count; | |
3872 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
3873 | ||
3874 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
3875 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
3876 | if (rc) { | |
3877 | cFYI(1, ("error %d in QueryInternalInfo", rc)); | |
3878 | } else { | |
3879 | /* decode response */ | |
3880 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
3881 | if (rc || (pSMBr->ByteCount < 2)) | |
3882 | /* BB also check enough total bytes returned */ | |
3883 | /* If rc should we check for EOPNOSUPP and | |
3884 | disable the srvino flag? or in caller? */ | |
3885 | rc = -EIO; /* bad smb */ | |
50c2f753 | 3886 | else { |
1da177e4 LT |
3887 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); |
3888 | __u16 count = le16_to_cpu(pSMBr->t2.DataCount); | |
50c2f753 | 3889 | struct file_internal_info *pfinfo; |
1da177e4 | 3890 | /* BB Do we need a cast or hash here ? */ |
790fe579 | 3891 | if (count < 8) { |
1da177e4 LT |
3892 | cFYI(1, ("Illegal size ret in QryIntrnlInf")); |
3893 | rc = -EIO; | |
3894 | goto GetInodeNumOut; | |
3895 | } | |
3896 | pfinfo = (struct file_internal_info *) | |
3897 | (data_offset + (char *) &pSMBr->hdr.Protocol); | |
3898 | *inode_number = pfinfo->UniqueId; | |
3899 | } | |
3900 | } | |
3901 | GetInodeNumOut: | |
3902 | cifs_buf_release(pSMB); | |
3903 | if (rc == -EAGAIN) | |
3904 | goto GetInodeNumberRetry; | |
3905 | return rc; | |
3906 | } | |
1da177e4 | 3907 | |
2c55608f IM |
3908 | /* computes length of UCS string converted to host codepage |
3909 | * @src: UCS string | |
3910 | * @maxlen: length of the input string in UCS characters | |
3911 | * (not in bytes) | |
3912 | * | |
3913 | * return: size of input string in host codepage | |
3914 | */ | |
3915 | static int hostlen_fromUCS(const __le16 *src, const int maxlen, | |
3916 | const struct nls_table *nls_codepage) { | |
3917 | int i; | |
3918 | int hostlen = 0; | |
3919 | char to[4]; | |
3920 | int charlen; | |
3921 | for (i = 0; (i < maxlen) && src[i]; ++i) { | |
3922 | charlen = nls_codepage->uni2char(le16_to_cpu(src[i]), | |
3923 | to, NLS_MAX_CHARSET_SIZE); | |
3924 | hostlen += charlen > 0 ? charlen : 1; | |
3925 | } | |
3926 | return hostlen; | |
3927 | } | |
3928 | ||
fec4585f IM |
3929 | /* parses DFS refferal V3 structure |
3930 | * caller is responsible for freeing target_nodes | |
3931 | * returns: | |
3932 | * on success - 0 | |
3933 | * on failure - errno | |
3934 | */ | |
3935 | static int | |
a1fe78f1 | 3936 | parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr, |
fec4585f IM |
3937 | unsigned int *num_of_nodes, |
3938 | struct dfs_info3_param **target_nodes, | |
2c55608f IM |
3939 | const struct nls_table *nls_codepage, int remap, |
3940 | const char *searchName) | |
fec4585f IM |
3941 | { |
3942 | int i, rc = 0; | |
3943 | char *data_end; | |
3944 | bool is_unicode; | |
3945 | struct dfs_referral_level_3 *ref; | |
3946 | ||
5ca33c6a HH |
3947 | if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) |
3948 | is_unicode = true; | |
3949 | else | |
3950 | is_unicode = false; | |
fec4585f IM |
3951 | *num_of_nodes = le16_to_cpu(pSMBr->NumberOfReferrals); |
3952 | ||
3953 | if (*num_of_nodes < 1) { | |
3954 | cERROR(1, ("num_referrals: must be at least > 0," | |
3955 | "but we get num_referrals = %d\n", *num_of_nodes)); | |
3956 | rc = -EINVAL; | |
a1fe78f1 | 3957 | goto parse_DFS_referrals_exit; |
fec4585f IM |
3958 | } |
3959 | ||
3960 | ref = (struct dfs_referral_level_3 *) &(pSMBr->referrals); | |
1d92cfd5 | 3961 | if (ref->VersionNumber != cpu_to_le16(3)) { |
fec4585f | 3962 | cERROR(1, ("Referrals of V%d version are not supported," |
1d92cfd5 | 3963 | "should be V3", le16_to_cpu(ref->VersionNumber))); |
fec4585f | 3964 | rc = -EINVAL; |
a1fe78f1 | 3965 | goto parse_DFS_referrals_exit; |
fec4585f IM |
3966 | } |
3967 | ||
3968 | /* get the upper boundary of the resp buffer */ | |
3969 | data_end = (char *)(&(pSMBr->PathConsumed)) + | |
3970 | le16_to_cpu(pSMBr->t2.DataCount); | |
3971 | ||
3972 | cFYI(1, ("num_referrals: %d dfs flags: 0x%x ... \n", | |
3973 | *num_of_nodes, | |
3974 | le16_to_cpu(pSMBr->DFSFlags))); | |
3975 | ||
3976 | *target_nodes = kzalloc(sizeof(struct dfs_info3_param) * | |
3977 | *num_of_nodes, GFP_KERNEL); | |
3978 | if (*target_nodes == NULL) { | |
3979 | cERROR(1, ("Failed to allocate buffer for target_nodes\n")); | |
3980 | rc = -ENOMEM; | |
a1fe78f1 | 3981 | goto parse_DFS_referrals_exit; |
fec4585f IM |
3982 | } |
3983 | ||
3984 | /* collect neccessary data from referrals */ | |
3985 | for (i = 0; i < *num_of_nodes; i++) { | |
3986 | char *temp; | |
3987 | int max_len; | |
3988 | struct dfs_info3_param *node = (*target_nodes)+i; | |
3989 | ||
3990 | node->flags = le16_to_cpu(pSMBr->DFSFlags); | |
2c55608f | 3991 | if (is_unicode) { |
331c3135 JL |
3992 | __le16 *tmp = kmalloc(strlen(searchName)*2 + 2, |
3993 | GFP_KERNEL); | |
2c55608f IM |
3994 | cifsConvertToUCS((__le16 *) tmp, searchName, |
3995 | PATH_MAX, nls_codepage, remap); | |
3996 | node->path_consumed = hostlen_fromUCS(tmp, | |
3997 | le16_to_cpu(pSMBr->PathConsumed)/2, | |
3998 | nls_codepage); | |
3999 | kfree(tmp); | |
4000 | } else | |
4001 | node->path_consumed = le16_to_cpu(pSMBr->PathConsumed); | |
4002 | ||
fec4585f IM |
4003 | node->server_type = le16_to_cpu(ref->ServerType); |
4004 | node->ref_flag = le16_to_cpu(ref->ReferralEntryFlags); | |
4005 | ||
4006 | /* copy DfsPath */ | |
4007 | temp = (char *)ref + le16_to_cpu(ref->DfsPathOffset); | |
4008 | max_len = data_end - temp; | |
4009 | rc = cifs_strncpy_to_host(&(node->path_name), temp, | |
4010 | max_len, is_unicode, nls_codepage); | |
4011 | if (rc) | |
a1fe78f1 | 4012 | goto parse_DFS_referrals_exit; |
fec4585f IM |
4013 | |
4014 | /* copy link target UNC */ | |
4015 | temp = (char *)ref + le16_to_cpu(ref->NetworkAddressOffset); | |
4016 | max_len = data_end - temp; | |
4017 | rc = cifs_strncpy_to_host(&(node->node_name), temp, | |
4018 | max_len, is_unicode, nls_codepage); | |
4019 | if (rc) | |
a1fe78f1 | 4020 | goto parse_DFS_referrals_exit; |
fec4585f | 4021 | |
1d92cfd5 | 4022 | ref += le16_to_cpu(ref->Size); |
fec4585f IM |
4023 | } |
4024 | ||
a1fe78f1 | 4025 | parse_DFS_referrals_exit: |
fec4585f IM |
4026 | if (rc) { |
4027 | free_dfs_info_array(*target_nodes, *num_of_nodes); | |
4028 | *target_nodes = NULL; | |
4029 | *num_of_nodes = 0; | |
4030 | } | |
4031 | return rc; | |
4032 | } | |
4033 | ||
1da177e4 LT |
4034 | int |
4035 | CIFSGetDFSRefer(const int xid, struct cifsSesInfo *ses, | |
4036 | const unsigned char *searchName, | |
c2cf07d5 SF |
4037 | struct dfs_info3_param **target_nodes, |
4038 | unsigned int *num_of_nodes, | |
737b758c | 4039 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4040 | { |
4041 | /* TRANS2_GET_DFS_REFERRAL */ | |
4042 | TRANSACTION2_GET_DFS_REFER_REQ *pSMB = NULL; | |
4043 | TRANSACTION2_GET_DFS_REFER_RSP *pSMBr = NULL; | |
1da177e4 LT |
4044 | int rc = 0; |
4045 | int bytes_returned; | |
4046 | int name_len; | |
1da177e4 | 4047 | __u16 params, byte_count; |
c2cf07d5 SF |
4048 | *num_of_nodes = 0; |
4049 | *target_nodes = NULL; | |
1da177e4 LT |
4050 | |
4051 | cFYI(1, ("In GetDFSRefer the path %s", searchName)); | |
4052 | if (ses == NULL) | |
4053 | return -ENODEV; | |
4054 | getDFSRetry: | |
4055 | rc = smb_init(SMB_COM_TRANSACTION2, 15, NULL, (void **) &pSMB, | |
4056 | (void **) &pSMBr); | |
4057 | if (rc) | |
4058 | return rc; | |
50c2f753 SF |
4059 | |
4060 | /* server pointer checked in called function, | |
1982c344 SF |
4061 | but should never be null here anyway */ |
4062 | pSMB->hdr.Mid = GetNextMid(ses->server); | |
1da177e4 LT |
4063 | pSMB->hdr.Tid = ses->ipc_tid; |
4064 | pSMB->hdr.Uid = ses->Suid; | |
26f57364 | 4065 | if (ses->capabilities & CAP_STATUS32) |
1da177e4 | 4066 | pSMB->hdr.Flags2 |= SMBFLG2_ERR_STATUS; |
26f57364 | 4067 | if (ses->capabilities & CAP_DFS) |
1da177e4 | 4068 | pSMB->hdr.Flags2 |= SMBFLG2_DFS; |
1da177e4 LT |
4069 | |
4070 | if (ses->capabilities & CAP_UNICODE) { | |
4071 | pSMB->hdr.Flags2 |= SMBFLG2_UNICODE; | |
4072 | name_len = | |
b1a45695 | 4073 | cifsConvertToUCS((__le16 *) pSMB->RequestFileName, |
737b758c | 4074 | searchName, PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4075 | name_len++; /* trailing null */ |
4076 | name_len *= 2; | |
50c2f753 | 4077 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4078 | name_len = strnlen(searchName, PATH_MAX); |
4079 | name_len++; /* trailing null */ | |
4080 | strncpy(pSMB->RequestFileName, searchName, name_len); | |
4081 | } | |
4082 | ||
790fe579 SF |
4083 | if (ses->server) { |
4084 | if (ses->server->secMode & | |
1a4e15a0 SF |
4085 | (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) |
4086 | pSMB->hdr.Flags2 |= SMBFLG2_SECURITY_SIGNATURE; | |
4087 | } | |
4088 | ||
50c2f753 | 4089 | pSMB->hdr.Uid = ses->Suid; |
1a4e15a0 | 4090 | |
1da177e4 LT |
4091 | params = 2 /* level */ + name_len /*includes null */ ; |
4092 | pSMB->TotalDataCount = 0; | |
4093 | pSMB->DataCount = 0; | |
4094 | pSMB->DataOffset = 0; | |
4095 | pSMB->MaxParameterCount = 0; | |
582d21e5 SF |
4096 | /* BB find exact max SMB PDU from sess structure BB */ |
4097 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
4098 | pSMB->MaxSetupCount = 0; |
4099 | pSMB->Reserved = 0; | |
4100 | pSMB->Flags = 0; | |
4101 | pSMB->Timeout = 0; | |
4102 | pSMB->Reserved2 = 0; | |
4103 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4104 | struct smb_com_transaction2_get_dfs_refer_req, MaxReferralLevel) - 4); |
1da177e4 LT |
4105 | pSMB->SetupCount = 1; |
4106 | pSMB->Reserved3 = 0; | |
4107 | pSMB->SubCommand = cpu_to_le16(TRANS2_GET_DFS_REFERRAL); | |
4108 | byte_count = params + 3 /* pad */ ; | |
4109 | pSMB->ParameterCount = cpu_to_le16(params); | |
4110 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4111 | pSMB->MaxReferralLevel = cpu_to_le16(3); | |
4112 | pSMB->hdr.smb_buf_length += byte_count; | |
4113 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4114 | ||
4115 | rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB, | |
4116 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4117 | if (rc) { | |
4118 | cFYI(1, ("Send error in GetDFSRefer = %d", rc)); | |
c2cf07d5 SF |
4119 | goto GetDFSRefExit; |
4120 | } | |
4121 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
1da177e4 | 4122 | |
c2cf07d5 | 4123 | /* BB Also check if enough total bytes returned? */ |
fec4585f | 4124 | if (rc || (pSMBr->ByteCount < 17)) { |
c2cf07d5 | 4125 | rc = -EIO; /* bad smb */ |
fec4585f IM |
4126 | goto GetDFSRefExit; |
4127 | } | |
c2cf07d5 | 4128 | |
fec4585f IM |
4129 | cFYI(1, ("Decoding GetDFSRefer response BCC: %d Offset %d", |
4130 | pSMBr->ByteCount, | |
4131 | le16_to_cpu(pSMBr->t2.DataOffset))); | |
1da177e4 | 4132 | |
fec4585f | 4133 | /* parse returned result into more usable form */ |
a1fe78f1 | 4134 | rc = parse_DFS_referrals(pSMBr, num_of_nodes, |
2c55608f IM |
4135 | target_nodes, nls_codepage, remap, |
4136 | searchName); | |
c2cf07d5 | 4137 | |
1da177e4 | 4138 | GetDFSRefExit: |
0d817bc0 | 4139 | cifs_buf_release(pSMB); |
1da177e4 LT |
4140 | |
4141 | if (rc == -EAGAIN) | |
4142 | goto getDFSRetry; | |
4143 | ||
4144 | return rc; | |
4145 | } | |
4146 | ||
20962438 SF |
4147 | /* Query File System Info such as free space to old servers such as Win 9x */ |
4148 | int | |
4149 | SMBOldQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) | |
4150 | { | |
4151 | /* level 0x01 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4152 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4153 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4154 | FILE_SYSTEM_ALLOC_INFO *response_data; | |
4155 | int rc = 0; | |
4156 | int bytes_returned = 0; | |
4157 | __u16 params, byte_count; | |
4158 | ||
4159 | cFYI(1, ("OldQFSInfo")); | |
4160 | oldQFSInfoRetry: | |
4161 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4162 | (void **) &pSMBr); | |
4163 | if (rc) | |
4164 | return rc; | |
20962438 SF |
4165 | |
4166 | params = 2; /* level */ | |
4167 | pSMB->TotalDataCount = 0; | |
4168 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4169 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4170 | pSMB->MaxSetupCount = 0; | |
4171 | pSMB->Reserved = 0; | |
4172 | pSMB->Flags = 0; | |
4173 | pSMB->Timeout = 0; | |
4174 | pSMB->Reserved2 = 0; | |
4175 | byte_count = params + 1 /* pad */ ; | |
4176 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4177 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4178 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
4179 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
4180 | pSMB->DataCount = 0; | |
4181 | pSMB->DataOffset = 0; | |
4182 | pSMB->SetupCount = 1; | |
4183 | pSMB->Reserved3 = 0; | |
4184 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4185 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_ALLOCATION); | |
4186 | pSMB->hdr.smb_buf_length += byte_count; | |
4187 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4188 | ||
4189 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4190 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4191 | if (rc) { | |
4192 | cFYI(1, ("Send error in QFSInfo = %d", rc)); | |
4193 | } else { /* decode response */ | |
4194 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4195 | ||
4196 | if (rc || (pSMBr->ByteCount < 18)) | |
4197 | rc = -EIO; /* bad smb */ | |
4198 | else { | |
4199 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 4200 | cFYI(1, ("qfsinf resp BCC: %d Offset %d", |
20962438 SF |
4201 | pSMBr->ByteCount, data_offset)); |
4202 | ||
50c2f753 | 4203 | response_data = (FILE_SYSTEM_ALLOC_INFO *) |
20962438 SF |
4204 | (((char *) &pSMBr->hdr.Protocol) + data_offset); |
4205 | FSData->f_bsize = | |
4206 | le16_to_cpu(response_data->BytesPerSector) * | |
4207 | le32_to_cpu(response_data-> | |
4208 | SectorsPerAllocationUnit); | |
4209 | FSData->f_blocks = | |
50c2f753 | 4210 | le32_to_cpu(response_data->TotalAllocationUnits); |
20962438 SF |
4211 | FSData->f_bfree = FSData->f_bavail = |
4212 | le32_to_cpu(response_data->FreeAllocationUnits); | |
4213 | cFYI(1, | |
4214 | ("Blocks: %lld Free: %lld Block size %ld", | |
4215 | (unsigned long long)FSData->f_blocks, | |
4216 | (unsigned long long)FSData->f_bfree, | |
4217 | FSData->f_bsize)); | |
4218 | } | |
4219 | } | |
4220 | cifs_buf_release(pSMB); | |
4221 | ||
4222 | if (rc == -EAGAIN) | |
4223 | goto oldQFSInfoRetry; | |
4224 | ||
4225 | return rc; | |
4226 | } | |
4227 | ||
1da177e4 | 4228 | int |
737b758c | 4229 | CIFSSMBQFSInfo(const int xid, struct cifsTconInfo *tcon, struct kstatfs *FSData) |
1da177e4 LT |
4230 | { |
4231 | /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4232 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4233 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4234 | FILE_SYSTEM_INFO *response_data; | |
4235 | int rc = 0; | |
4236 | int bytes_returned = 0; | |
4237 | __u16 params, byte_count; | |
4238 | ||
4239 | cFYI(1, ("In QFSInfo")); | |
4240 | QFSInfoRetry: | |
4241 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4242 | (void **) &pSMBr); | |
4243 | if (rc) | |
4244 | return rc; | |
4245 | ||
4246 | params = 2; /* level */ | |
4247 | pSMB->TotalDataCount = 0; | |
4248 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
20962438 | 4249 | pSMB->MaxDataCount = cpu_to_le16(1000); |
1da177e4 LT |
4250 | pSMB->MaxSetupCount = 0; |
4251 | pSMB->Reserved = 0; | |
4252 | pSMB->Flags = 0; | |
4253 | pSMB->Timeout = 0; | |
4254 | pSMB->Reserved2 = 0; | |
4255 | byte_count = params + 1 /* pad */ ; | |
4256 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4257 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4258 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4259 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4260 | pSMB->DataCount = 0; |
4261 | pSMB->DataOffset = 0; | |
4262 | pSMB->SetupCount = 1; | |
4263 | pSMB->Reserved3 = 0; | |
4264 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4265 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_SIZE_INFO); | |
4266 | pSMB->hdr.smb_buf_length += byte_count; | |
4267 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4268 | ||
4269 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4270 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4271 | if (rc) { | |
20962438 | 4272 | cFYI(1, ("Send error in QFSInfo = %d", rc)); |
1da177e4 | 4273 | } else { /* decode response */ |
50c2f753 | 4274 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); |
1da177e4 | 4275 | |
20962438 | 4276 | if (rc || (pSMBr->ByteCount < 24)) |
1da177e4 LT |
4277 | rc = -EIO; /* bad smb */ |
4278 | else { | |
4279 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
1da177e4 LT |
4280 | |
4281 | response_data = | |
4282 | (FILE_SYSTEM_INFO | |
4283 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4284 | data_offset); | |
4285 | FSData->f_bsize = | |
4286 | le32_to_cpu(response_data->BytesPerSector) * | |
4287 | le32_to_cpu(response_data-> | |
4288 | SectorsPerAllocationUnit); | |
4289 | FSData->f_blocks = | |
4290 | le64_to_cpu(response_data->TotalAllocationUnits); | |
4291 | FSData->f_bfree = FSData->f_bavail = | |
4292 | le64_to_cpu(response_data->FreeAllocationUnits); | |
4293 | cFYI(1, | |
4294 | ("Blocks: %lld Free: %lld Block size %ld", | |
4295 | (unsigned long long)FSData->f_blocks, | |
4296 | (unsigned long long)FSData->f_bfree, | |
4297 | FSData->f_bsize)); | |
4298 | } | |
4299 | } | |
4300 | cifs_buf_release(pSMB); | |
4301 | ||
4302 | if (rc == -EAGAIN) | |
4303 | goto QFSInfoRetry; | |
4304 | ||
4305 | return rc; | |
4306 | } | |
4307 | ||
4308 | int | |
737b758c | 4309 | CIFSSMBQFSAttributeInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4310 | { |
4311 | /* level 0x105 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4312 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4313 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4314 | FILE_SYSTEM_ATTRIBUTE_INFO *response_data; | |
4315 | int rc = 0; | |
4316 | int bytes_returned = 0; | |
4317 | __u16 params, byte_count; | |
4318 | ||
4319 | cFYI(1, ("In QFSAttributeInfo")); | |
4320 | QFSAttributeRetry: | |
4321 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4322 | (void **) &pSMBr); | |
4323 | if (rc) | |
4324 | return rc; | |
4325 | ||
4326 | params = 2; /* level */ | |
4327 | pSMB->TotalDataCount = 0; | |
4328 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4329 | /* BB find exact max SMB PDU from sess structure BB */ |
4330 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4331 | pSMB->MaxSetupCount = 0; |
4332 | pSMB->Reserved = 0; | |
4333 | pSMB->Flags = 0; | |
4334 | pSMB->Timeout = 0; | |
4335 | pSMB->Reserved2 = 0; | |
4336 | byte_count = params + 1 /* pad */ ; | |
4337 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4338 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4339 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4340 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4341 | pSMB->DataCount = 0; |
4342 | pSMB->DataOffset = 0; | |
4343 | pSMB->SetupCount = 1; | |
4344 | pSMB->Reserved3 = 0; | |
4345 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4346 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_ATTRIBUTE_INFO); | |
4347 | pSMB->hdr.smb_buf_length += byte_count; | |
4348 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4349 | ||
4350 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4351 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4352 | if (rc) { | |
4353 | cERROR(1, ("Send error in QFSAttributeInfo = %d", rc)); | |
4354 | } else { /* decode response */ | |
4355 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4356 | ||
50c2f753 SF |
4357 | if (rc || (pSMBr->ByteCount < 13)) { |
4358 | /* BB also check if enough bytes returned */ | |
1da177e4 LT |
4359 | rc = -EIO; /* bad smb */ |
4360 | } else { | |
4361 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4362 | response_data = | |
4363 | (FILE_SYSTEM_ATTRIBUTE_INFO | |
4364 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4365 | data_offset); | |
4366 | memcpy(&tcon->fsAttrInfo, response_data, | |
26f57364 | 4367 | sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)); |
1da177e4 LT |
4368 | } |
4369 | } | |
4370 | cifs_buf_release(pSMB); | |
4371 | ||
4372 | if (rc == -EAGAIN) | |
4373 | goto QFSAttributeRetry; | |
4374 | ||
4375 | return rc; | |
4376 | } | |
4377 | ||
4378 | int | |
737b758c | 4379 | CIFSSMBQFSDeviceInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4380 | { |
4381 | /* level 0x104 SMB_QUERY_FILE_SYSTEM_INFO */ | |
4382 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4383 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4384 | FILE_SYSTEM_DEVICE_INFO *response_data; | |
4385 | int rc = 0; | |
4386 | int bytes_returned = 0; | |
4387 | __u16 params, byte_count; | |
4388 | ||
4389 | cFYI(1, ("In QFSDeviceInfo")); | |
4390 | QFSDeviceRetry: | |
4391 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4392 | (void **) &pSMBr); | |
4393 | if (rc) | |
4394 | return rc; | |
4395 | ||
4396 | params = 2; /* level */ | |
4397 | pSMB->TotalDataCount = 0; | |
4398 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4399 | /* BB find exact max SMB PDU from sess structure BB */ |
4400 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4401 | pSMB->MaxSetupCount = 0; |
4402 | pSMB->Reserved = 0; | |
4403 | pSMB->Flags = 0; | |
4404 | pSMB->Timeout = 0; | |
4405 | pSMB->Reserved2 = 0; | |
4406 | byte_count = params + 1 /* pad */ ; | |
4407 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
4408 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
4409 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 4410 | struct smb_com_transaction2_qfsi_req, InformationLevel) - 4); |
1da177e4 LT |
4411 | |
4412 | pSMB->DataCount = 0; | |
4413 | pSMB->DataOffset = 0; | |
4414 | pSMB->SetupCount = 1; | |
4415 | pSMB->Reserved3 = 0; | |
4416 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4417 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_FS_DEVICE_INFO); | |
4418 | pSMB->hdr.smb_buf_length += byte_count; | |
4419 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4420 | ||
4421 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4422 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4423 | if (rc) { | |
4424 | cFYI(1, ("Send error in QFSDeviceInfo = %d", rc)); | |
4425 | } else { /* decode response */ | |
4426 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4427 | ||
630f3f0c | 4428 | if (rc || (pSMBr->ByteCount < sizeof(FILE_SYSTEM_DEVICE_INFO))) |
1da177e4 LT |
4429 | rc = -EIO; /* bad smb */ |
4430 | else { | |
4431 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4432 | response_data = | |
737b758c SF |
4433 | (FILE_SYSTEM_DEVICE_INFO *) |
4434 | (((char *) &pSMBr->hdr.Protocol) + | |
1da177e4 LT |
4435 | data_offset); |
4436 | memcpy(&tcon->fsDevInfo, response_data, | |
26f57364 | 4437 | sizeof(FILE_SYSTEM_DEVICE_INFO)); |
1da177e4 LT |
4438 | } |
4439 | } | |
4440 | cifs_buf_release(pSMB); | |
4441 | ||
4442 | if (rc == -EAGAIN) | |
4443 | goto QFSDeviceRetry; | |
4444 | ||
4445 | return rc; | |
4446 | } | |
4447 | ||
4448 | int | |
737b758c | 4449 | CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon) |
1da177e4 LT |
4450 | { |
4451 | /* level 0x200 SMB_QUERY_CIFS_UNIX_INFO */ | |
4452 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4453 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4454 | FILE_SYSTEM_UNIX_INFO *response_data; | |
4455 | int rc = 0; | |
4456 | int bytes_returned = 0; | |
4457 | __u16 params, byte_count; | |
4458 | ||
4459 | cFYI(1, ("In QFSUnixInfo")); | |
4460 | QFSUnixRetry: | |
4461 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4462 | (void **) &pSMBr); | |
4463 | if (rc) | |
4464 | return rc; | |
4465 | ||
4466 | params = 2; /* level */ | |
4467 | pSMB->TotalDataCount = 0; | |
4468 | pSMB->DataCount = 0; | |
4469 | pSMB->DataOffset = 0; | |
4470 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4471 | /* BB find exact max SMB PDU from sess structure BB */ |
4472 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4473 | pSMB->MaxSetupCount = 0; |
4474 | pSMB->Reserved = 0; | |
4475 | pSMB->Flags = 0; | |
4476 | pSMB->Timeout = 0; | |
4477 | pSMB->Reserved2 = 0; | |
4478 | byte_count = params + 1 /* pad */ ; | |
4479 | pSMB->ParameterCount = cpu_to_le16(params); | |
4480 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4481 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4482 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4483 | pSMB->SetupCount = 1; |
4484 | pSMB->Reserved3 = 0; | |
4485 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4486 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_CIFS_UNIX_INFO); | |
4487 | pSMB->hdr.smb_buf_length += byte_count; | |
4488 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4489 | ||
4490 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4491 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4492 | if (rc) { | |
4493 | cERROR(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4494 | } else { /* decode response */ | |
4495 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4496 | ||
4497 | if (rc || (pSMBr->ByteCount < 13)) { | |
4498 | rc = -EIO; /* bad smb */ | |
4499 | } else { | |
4500 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4501 | response_data = | |
4502 | (FILE_SYSTEM_UNIX_INFO | |
4503 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4504 | data_offset); | |
4505 | memcpy(&tcon->fsUnixInfo, response_data, | |
26f57364 | 4506 | sizeof(FILE_SYSTEM_UNIX_INFO)); |
1da177e4 LT |
4507 | } |
4508 | } | |
4509 | cifs_buf_release(pSMB); | |
4510 | ||
4511 | if (rc == -EAGAIN) | |
4512 | goto QFSUnixRetry; | |
4513 | ||
4514 | ||
4515 | return rc; | |
4516 | } | |
4517 | ||
ac67055e | 4518 | int |
45abc6ee | 4519 | CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap) |
ac67055e JA |
4520 | { |
4521 | /* level 0x200 SMB_SET_CIFS_UNIX_INFO */ | |
4522 | TRANSACTION2_SETFSI_REQ *pSMB = NULL; | |
4523 | TRANSACTION2_SETFSI_RSP *pSMBr = NULL; | |
4524 | int rc = 0; | |
4525 | int bytes_returned = 0; | |
4526 | __u16 params, param_offset, offset, byte_count; | |
4527 | ||
4528 | cFYI(1, ("In SETFSUnixInfo")); | |
4529 | SETFSUnixRetry: | |
f26282c9 | 4530 | /* BB switch to small buf init to save memory */ |
ac67055e JA |
4531 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, |
4532 | (void **) &pSMBr); | |
4533 | if (rc) | |
4534 | return rc; | |
4535 | ||
4536 | params = 4; /* 2 bytes zero followed by info level. */ | |
4537 | pSMB->MaxSetupCount = 0; | |
4538 | pSMB->Reserved = 0; | |
4539 | pSMB->Flags = 0; | |
4540 | pSMB->Timeout = 0; | |
4541 | pSMB->Reserved2 = 0; | |
50c2f753 SF |
4542 | param_offset = offsetof(struct smb_com_transaction2_setfsi_req, FileNum) |
4543 | - 4; | |
ac67055e JA |
4544 | offset = param_offset + params; |
4545 | ||
4546 | pSMB->MaxParameterCount = cpu_to_le16(4); | |
582d21e5 SF |
4547 | /* BB find exact max SMB PDU from sess structure BB */ |
4548 | pSMB->MaxDataCount = cpu_to_le16(100); | |
ac67055e JA |
4549 | pSMB->SetupCount = 1; |
4550 | pSMB->Reserved3 = 0; | |
4551 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FS_INFORMATION); | |
4552 | byte_count = 1 /* pad */ + params + 12; | |
4553 | ||
4554 | pSMB->DataCount = cpu_to_le16(12); | |
4555 | pSMB->ParameterCount = cpu_to_le16(params); | |
4556 | pSMB->TotalDataCount = pSMB->DataCount; | |
4557 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4558 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4559 | pSMB->DataOffset = cpu_to_le16(offset); | |
4560 | ||
4561 | /* Params. */ | |
4562 | pSMB->FileNum = 0; | |
4563 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_CIFS_UNIX_INFO); | |
4564 | ||
4565 | /* Data. */ | |
4566 | pSMB->ClientUnixMajor = cpu_to_le16(CIFS_UNIX_MAJOR_VERSION); | |
4567 | pSMB->ClientUnixMinor = cpu_to_le16(CIFS_UNIX_MINOR_VERSION); | |
4568 | pSMB->ClientUnixCap = cpu_to_le64(cap); | |
4569 | ||
4570 | pSMB->hdr.smb_buf_length += byte_count; | |
4571 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4572 | ||
4573 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4574 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4575 | if (rc) { | |
4576 | cERROR(1, ("Send error in SETFSUnixInfo = %d", rc)); | |
4577 | } else { /* decode response */ | |
4578 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
ad7a2926 | 4579 | if (rc) |
ac67055e | 4580 | rc = -EIO; /* bad smb */ |
ac67055e JA |
4581 | } |
4582 | cifs_buf_release(pSMB); | |
4583 | ||
4584 | if (rc == -EAGAIN) | |
4585 | goto SETFSUnixRetry; | |
4586 | ||
4587 | return rc; | |
4588 | } | |
4589 | ||
4590 | ||
1da177e4 LT |
4591 | |
4592 | int | |
4593 | CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon, | |
737b758c | 4594 | struct kstatfs *FSData) |
1da177e4 LT |
4595 | { |
4596 | /* level 0x201 SMB_QUERY_CIFS_POSIX_INFO */ | |
4597 | TRANSACTION2_QFSI_REQ *pSMB = NULL; | |
4598 | TRANSACTION2_QFSI_RSP *pSMBr = NULL; | |
4599 | FILE_SYSTEM_POSIX_INFO *response_data; | |
4600 | int rc = 0; | |
4601 | int bytes_returned = 0; | |
4602 | __u16 params, byte_count; | |
4603 | ||
4604 | cFYI(1, ("In QFSPosixInfo")); | |
4605 | QFSPosixRetry: | |
4606 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4607 | (void **) &pSMBr); | |
4608 | if (rc) | |
4609 | return rc; | |
4610 | ||
4611 | params = 2; /* level */ | |
4612 | pSMB->TotalDataCount = 0; | |
4613 | pSMB->DataCount = 0; | |
4614 | pSMB->DataOffset = 0; | |
4615 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4616 | /* BB find exact max SMB PDU from sess structure BB */ |
4617 | pSMB->MaxDataCount = cpu_to_le16(100); | |
1da177e4 LT |
4618 | pSMB->MaxSetupCount = 0; |
4619 | pSMB->Reserved = 0; | |
4620 | pSMB->Flags = 0; | |
4621 | pSMB->Timeout = 0; | |
4622 | pSMB->Reserved2 = 0; | |
4623 | byte_count = params + 1 /* pad */ ; | |
4624 | pSMB->ParameterCount = cpu_to_le16(params); | |
4625 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
50c2f753 SF |
4626 | pSMB->ParameterOffset = cpu_to_le16(offsetof(struct |
4627 | smb_com_transaction2_qfsi_req, InformationLevel) - 4); | |
1da177e4 LT |
4628 | pSMB->SetupCount = 1; |
4629 | pSMB->Reserved3 = 0; | |
4630 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_FS_INFORMATION); | |
4631 | pSMB->InformationLevel = cpu_to_le16(SMB_QUERY_POSIX_FS_INFO); | |
4632 | pSMB->hdr.smb_buf_length += byte_count; | |
4633 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4634 | ||
4635 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4636 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
4637 | if (rc) { | |
4638 | cFYI(1, ("Send error in QFSUnixInfo = %d", rc)); | |
4639 | } else { /* decode response */ | |
4640 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
4641 | ||
4642 | if (rc || (pSMBr->ByteCount < 13)) { | |
4643 | rc = -EIO; /* bad smb */ | |
4644 | } else { | |
4645 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
4646 | response_data = | |
4647 | (FILE_SYSTEM_POSIX_INFO | |
4648 | *) (((char *) &pSMBr->hdr.Protocol) + | |
4649 | data_offset); | |
4650 | FSData->f_bsize = | |
4651 | le32_to_cpu(response_data->BlockSize); | |
4652 | FSData->f_blocks = | |
4653 | le64_to_cpu(response_data->TotalBlocks); | |
4654 | FSData->f_bfree = | |
4655 | le64_to_cpu(response_data->BlocksAvail); | |
790fe579 | 4656 | if (response_data->UserBlocksAvail == cpu_to_le64(-1)) { |
1da177e4 LT |
4657 | FSData->f_bavail = FSData->f_bfree; |
4658 | } else { | |
4659 | FSData->f_bavail = | |
50c2f753 | 4660 | le64_to_cpu(response_data->UserBlocksAvail); |
1da177e4 | 4661 | } |
790fe579 | 4662 | if (response_data->TotalFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4663 | FSData->f_files = |
50c2f753 | 4664 | le64_to_cpu(response_data->TotalFileNodes); |
790fe579 | 4665 | if (response_data->FreeFileNodes != cpu_to_le64(-1)) |
1da177e4 | 4666 | FSData->f_ffree = |
50c2f753 | 4667 | le64_to_cpu(response_data->FreeFileNodes); |
1da177e4 LT |
4668 | } |
4669 | } | |
4670 | cifs_buf_release(pSMB); | |
4671 | ||
4672 | if (rc == -EAGAIN) | |
4673 | goto QFSPosixRetry; | |
4674 | ||
4675 | return rc; | |
4676 | } | |
4677 | ||
4678 | ||
50c2f753 SF |
4679 | /* We can not use write of zero bytes trick to |
4680 | set file size due to need for large file support. Also note that | |
4681 | this SetPathInfo is preferred to SetFileInfo based method in next | |
1da177e4 LT |
4682 | routine which is only needed to work around a sharing violation bug |
4683 | in Samba which this routine can run into */ | |
4684 | ||
4685 | int | |
4686 | CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
4b18f2a9 | 4687 | __u64 size, bool SetAllocation, |
737b758c | 4688 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
4689 | { |
4690 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
4691 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
4692 | struct file_end_of_file_info *parm_data; | |
4693 | int name_len; | |
4694 | int rc = 0; | |
4695 | int bytes_returned = 0; | |
4696 | __u16 params, byte_count, data_count, param_offset, offset; | |
4697 | ||
4698 | cFYI(1, ("In SetEOF")); | |
4699 | SetEOFRetry: | |
4700 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4701 | (void **) &pSMBr); | |
4702 | if (rc) | |
4703 | return rc; | |
4704 | ||
4705 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
4706 | name_len = | |
b1a45695 | 4707 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 4708 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
4709 | name_len++; /* trailing null */ |
4710 | name_len *= 2; | |
3e87d803 | 4711 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
4712 | name_len = strnlen(fileName, PATH_MAX); |
4713 | name_len++; /* trailing null */ | |
4714 | strncpy(pSMB->FileName, fileName, name_len); | |
4715 | } | |
4716 | params = 6 + name_len; | |
26f57364 | 4717 | data_count = sizeof(struct file_end_of_file_info); |
1da177e4 | 4718 | pSMB->MaxParameterCount = cpu_to_le16(2); |
3e87d803 | 4719 | pSMB->MaxDataCount = cpu_to_le16(4100); |
1da177e4 LT |
4720 | pSMB->MaxSetupCount = 0; |
4721 | pSMB->Reserved = 0; | |
4722 | pSMB->Flags = 0; | |
4723 | pSMB->Timeout = 0; | |
4724 | pSMB->Reserved2 = 0; | |
4725 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 4726 | InformationLevel) - 4; |
1da177e4 | 4727 | offset = param_offset + params; |
790fe579 | 4728 | if (SetAllocation) { |
50c2f753 SF |
4729 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4730 | pSMB->InformationLevel = | |
4731 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4732 | else | |
4733 | pSMB->InformationLevel = | |
4734 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
4735 | } else /* Set File Size */ { | |
1da177e4 LT |
4736 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4737 | pSMB->InformationLevel = | |
50c2f753 | 4738 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4739 | else |
4740 | pSMB->InformationLevel = | |
50c2f753 | 4741 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4742 | } |
4743 | ||
4744 | parm_data = | |
4745 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) + | |
4746 | offset); | |
4747 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4748 | pSMB->DataOffset = cpu_to_le16(offset); | |
4749 | pSMB->SetupCount = 1; | |
4750 | pSMB->Reserved3 = 0; | |
4751 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
4752 | byte_count = 3 /* pad */ + params + data_count; | |
4753 | pSMB->DataCount = cpu_to_le16(data_count); | |
4754 | pSMB->TotalDataCount = pSMB->DataCount; | |
4755 | pSMB->ParameterCount = cpu_to_le16(params); | |
4756 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4757 | pSMB->Reserved4 = 0; | |
4758 | pSMB->hdr.smb_buf_length += byte_count; | |
4759 | parm_data->FileSize = cpu_to_le64(size); | |
4760 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4761 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
4762 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 4763 | if (rc) |
1da177e4 | 4764 | cFYI(1, ("SetPathInfo (file size) returned %d", rc)); |
1da177e4 LT |
4765 | |
4766 | cifs_buf_release(pSMB); | |
4767 | ||
4768 | if (rc == -EAGAIN) | |
4769 | goto SetEOFRetry; | |
4770 | ||
4771 | return rc; | |
4772 | } | |
4773 | ||
4774 | int | |
50c2f753 | 4775 | CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size, |
4b18f2a9 | 4776 | __u16 fid, __u32 pid_of_opener, bool SetAllocation) |
1da177e4 LT |
4777 | { |
4778 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4779 | char *data_offset; |
4780 | struct file_end_of_file_info *parm_data; | |
4781 | int rc = 0; | |
1da177e4 LT |
4782 | __u16 params, param_offset, offset, byte_count, count; |
4783 | ||
4784 | cFYI(1, ("SetFileSize (via SetFileInfo) %lld", | |
4785 | (long long)size)); | |
cd63499c SF |
4786 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4787 | ||
1da177e4 LT |
4788 | if (rc) |
4789 | return rc; | |
4790 | ||
4791 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4792 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4793 | |
1da177e4 LT |
4794 | params = 6; |
4795 | pSMB->MaxSetupCount = 0; | |
4796 | pSMB->Reserved = 0; | |
4797 | pSMB->Flags = 0; | |
4798 | pSMB->Timeout = 0; | |
4799 | pSMB->Reserved2 = 0; | |
4800 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4801 | offset = param_offset + params; | |
4802 | ||
50c2f753 | 4803 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 LT |
4804 | |
4805 | count = sizeof(struct file_end_of_file_info); | |
4806 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
4807 | /* BB find exact max SMB PDU from sess structure BB */ |
4808 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4809 | pSMB->SetupCount = 1; |
4810 | pSMB->Reserved3 = 0; | |
4811 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4812 | byte_count = 3 /* pad */ + params + count; | |
4813 | pSMB->DataCount = cpu_to_le16(count); | |
4814 | pSMB->ParameterCount = cpu_to_le16(params); | |
4815 | pSMB->TotalDataCount = pSMB->DataCount; | |
4816 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4817 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4818 | parm_data = | |
50c2f753 SF |
4819 | (struct file_end_of_file_info *) (((char *) &pSMB->hdr.Protocol) |
4820 | + offset); | |
1da177e4 LT |
4821 | pSMB->DataOffset = cpu_to_le16(offset); |
4822 | parm_data->FileSize = cpu_to_le64(size); | |
4823 | pSMB->Fid = fid; | |
790fe579 | 4824 | if (SetAllocation) { |
1da177e4 LT |
4825 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4826 | pSMB->InformationLevel = | |
4827 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); | |
4828 | else | |
4829 | pSMB->InformationLevel = | |
4830 | cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO); | |
50c2f753 | 4831 | } else /* Set File Size */ { |
1da177e4 LT |
4832 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) |
4833 | pSMB->InformationLevel = | |
50c2f753 | 4834 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO2); |
1da177e4 LT |
4835 | else |
4836 | pSMB->InformationLevel = | |
50c2f753 | 4837 | cpu_to_le16(SMB_SET_FILE_END_OF_FILE_INFO); |
1da177e4 LT |
4838 | } |
4839 | pSMB->Reserved4 = 0; | |
4840 | pSMB->hdr.smb_buf_length += byte_count; | |
4841 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
133672ef | 4842 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
1da177e4 LT |
4843 | if (rc) { |
4844 | cFYI(1, | |
4845 | ("Send error in SetFileInfo (SetFileSize) = %d", | |
4846 | rc)); | |
4847 | } | |
4848 | ||
50c2f753 | 4849 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4850 | since file handle passed in no longer valid */ |
4851 | ||
4852 | return rc; | |
4853 | } | |
4854 | ||
50c2f753 | 4855 | /* Some legacy servers such as NT4 require that the file times be set on |
1da177e4 LT |
4856 | an open handle, rather than by pathname - this is awkward due to |
4857 | potential access conflicts on the open, but it is unavoidable for these | |
4858 | old servers since the only other choice is to go from 100 nanosecond DCE | |
4859 | time and resort to the original setpathinfo level which takes the ancient | |
4860 | DOS time format with 2 second granularity */ | |
4861 | int | |
2dd2dfa0 JL |
4862 | CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon, |
4863 | const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener) | |
1da177e4 LT |
4864 | { |
4865 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
1da177e4 LT |
4866 | char *data_offset; |
4867 | int rc = 0; | |
1da177e4 LT |
4868 | __u16 params, param_offset, offset, byte_count, count; |
4869 | ||
4870 | cFYI(1, ("Set Times (via SetFileInfo)")); | |
cd63499c SF |
4871 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); |
4872 | ||
1da177e4 LT |
4873 | if (rc) |
4874 | return rc; | |
4875 | ||
2dd2dfa0 JL |
4876 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); |
4877 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
50c2f753 | 4878 | |
1da177e4 LT |
4879 | params = 6; |
4880 | pSMB->MaxSetupCount = 0; | |
4881 | pSMB->Reserved = 0; | |
4882 | pSMB->Flags = 0; | |
4883 | pSMB->Timeout = 0; | |
4884 | pSMB->Reserved2 = 0; | |
4885 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4886 | offset = param_offset + params; | |
4887 | ||
50c2f753 | 4888 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; |
1da177e4 | 4889 | |
26f57364 | 4890 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 4891 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
4892 | /* BB find max SMB PDU from sess */ |
4893 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
4894 | pSMB->SetupCount = 1; |
4895 | pSMB->Reserved3 = 0; | |
4896 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4897 | byte_count = 3 /* pad */ + params + count; | |
4898 | pSMB->DataCount = cpu_to_le16(count); | |
4899 | pSMB->ParameterCount = cpu_to_le16(params); | |
4900 | pSMB->TotalDataCount = pSMB->DataCount; | |
4901 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4902 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4903 | pSMB->DataOffset = cpu_to_le16(offset); | |
4904 | pSMB->Fid = fid; | |
4905 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
4906 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
4907 | else | |
4908 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
4909 | pSMB->Reserved4 = 0; | |
4910 | pSMB->hdr.smb_buf_length += byte_count; | |
4911 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
50c2f753 | 4912 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
133672ef | 4913 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); |
ad7a2926 | 4914 | if (rc) |
50c2f753 | 4915 | cFYI(1, ("Send error in Set Time (SetFileInfo) = %d", rc)); |
1da177e4 | 4916 | |
50c2f753 | 4917 | /* Note: On -EAGAIN error only caller can retry on handle based calls |
1da177e4 LT |
4918 | since file handle passed in no longer valid */ |
4919 | ||
4920 | return rc; | |
4921 | } | |
4922 | ||
6d22f098 JL |
4923 | int |
4924 | CIFSSMBSetFileDisposition(const int xid, struct cifsTconInfo *tcon, | |
4925 | bool delete_file, __u16 fid, __u32 pid_of_opener) | |
4926 | { | |
4927 | struct smb_com_transaction2_sfi_req *pSMB = NULL; | |
4928 | char *data_offset; | |
4929 | int rc = 0; | |
4930 | __u16 params, param_offset, offset, byte_count, count; | |
4931 | ||
4932 | cFYI(1, ("Set File Disposition (via SetFileInfo)")); | |
4933 | rc = small_smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB); | |
4934 | ||
4935 | if (rc) | |
4936 | return rc; | |
4937 | ||
4938 | pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); | |
4939 | pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); | |
4940 | ||
4941 | params = 6; | |
4942 | pSMB->MaxSetupCount = 0; | |
4943 | pSMB->Reserved = 0; | |
4944 | pSMB->Flags = 0; | |
4945 | pSMB->Timeout = 0; | |
4946 | pSMB->Reserved2 = 0; | |
4947 | param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4; | |
4948 | offset = param_offset + params; | |
4949 | ||
4950 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
4951 | ||
4952 | count = 1; | |
4953 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
4954 | /* BB find max SMB PDU from sess */ | |
4955 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
4956 | pSMB->SetupCount = 1; | |
4957 | pSMB->Reserved3 = 0; | |
4958 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_FILE_INFORMATION); | |
4959 | byte_count = 3 /* pad */ + params + count; | |
4960 | pSMB->DataCount = cpu_to_le16(count); | |
4961 | pSMB->ParameterCount = cpu_to_le16(params); | |
4962 | pSMB->TotalDataCount = pSMB->DataCount; | |
4963 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
4964 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
4965 | pSMB->DataOffset = cpu_to_le16(offset); | |
4966 | pSMB->Fid = fid; | |
4967 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_DISPOSITION_INFO); | |
4968 | pSMB->Reserved4 = 0; | |
4969 | pSMB->hdr.smb_buf_length += byte_count; | |
4970 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
4971 | *data_offset = delete_file ? 1 : 0; | |
4972 | rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0); | |
4973 | if (rc) | |
4974 | cFYI(1, ("Send error in SetFileDisposition = %d", rc)); | |
4975 | ||
4976 | return rc; | |
4977 | } | |
1da177e4 LT |
4978 | |
4979 | int | |
6fc000e5 JL |
4980 | CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon, |
4981 | const char *fileName, const FILE_BASIC_INFO *data, | |
4982 | const struct nls_table *nls_codepage, int remap) | |
1da177e4 LT |
4983 | { |
4984 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
4985 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
4986 | int name_len; | |
4987 | int rc = 0; | |
4988 | int bytes_returned = 0; | |
4989 | char *data_offset; | |
4990 | __u16 params, param_offset, offset, byte_count, count; | |
4991 | ||
4992 | cFYI(1, ("In SetTimes")); | |
4993 | ||
4994 | SetTimesRetry: | |
4995 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
4996 | (void **) &pSMBr); | |
4997 | if (rc) | |
4998 | return rc; | |
4999 | ||
5000 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5001 | name_len = | |
b1a45695 | 5002 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5003 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5004 | name_len++; /* trailing null */ |
5005 | name_len *= 2; | |
50c2f753 | 5006 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5007 | name_len = strnlen(fileName, PATH_MAX); |
5008 | name_len++; /* trailing null */ | |
5009 | strncpy(pSMB->FileName, fileName, name_len); | |
5010 | } | |
5011 | ||
5012 | params = 6 + name_len; | |
26f57364 | 5013 | count = sizeof(FILE_BASIC_INFO); |
1da177e4 | 5014 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5015 | /* BB find max SMB PDU from sess structure BB */ |
5016 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5017 | pSMB->MaxSetupCount = 0; |
5018 | pSMB->Reserved = 0; | |
5019 | pSMB->Flags = 0; | |
5020 | pSMB->Timeout = 0; | |
5021 | pSMB->Reserved2 = 0; | |
5022 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5023 | InformationLevel) - 4; |
1da177e4 LT |
5024 | offset = param_offset + params; |
5025 | data_offset = (char *) (&pSMB->hdr.Protocol) + offset; | |
5026 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5027 | pSMB->DataOffset = cpu_to_le16(offset); | |
5028 | pSMB->SetupCount = 1; | |
5029 | pSMB->Reserved3 = 0; | |
5030 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5031 | byte_count = 3 /* pad */ + params + count; | |
5032 | ||
5033 | pSMB->DataCount = cpu_to_le16(count); | |
5034 | pSMB->ParameterCount = cpu_to_le16(params); | |
5035 | pSMB->TotalDataCount = pSMB->DataCount; | |
5036 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5037 | if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) | |
5038 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO2); | |
5039 | else | |
5040 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_BASIC_INFO); | |
5041 | pSMB->Reserved4 = 0; | |
5042 | pSMB->hdr.smb_buf_length += byte_count; | |
26f57364 | 5043 | memcpy(data_offset, data, sizeof(FILE_BASIC_INFO)); |
1da177e4 LT |
5044 | pSMB->ByteCount = cpu_to_le16(byte_count); |
5045 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5046 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5047 | if (rc) |
1da177e4 | 5048 | cFYI(1, ("SetPathInfo (times) returned %d", rc)); |
1da177e4 LT |
5049 | |
5050 | cifs_buf_release(pSMB); | |
5051 | ||
5052 | if (rc == -EAGAIN) | |
5053 | goto SetTimesRetry; | |
5054 | ||
5055 | return rc; | |
5056 | } | |
5057 | ||
5058 | /* Can not be used to set time stamps yet (due to old DOS time format) */ | |
5059 | /* Can be used to set attributes */ | |
5060 | #if 0 /* Possibly not needed - since it turns out that strangely NT4 has a bug | |
5061 | handling it anyway and NT4 was what we thought it would be needed for | |
5062 | Do not delete it until we prove whether needed for Win9x though */ | |
5063 | int | |
5064 | CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon, char *fileName, | |
5065 | __u16 dos_attrs, const struct nls_table *nls_codepage) | |
5066 | { | |
5067 | SETATTR_REQ *pSMB = NULL; | |
5068 | SETATTR_RSP *pSMBr = NULL; | |
5069 | int rc = 0; | |
5070 | int bytes_returned; | |
5071 | int name_len; | |
5072 | ||
5073 | cFYI(1, ("In SetAttrLegacy")); | |
5074 | ||
5075 | SetAttrLgcyRetry: | |
5076 | rc = smb_init(SMB_COM_SETATTR, 8, tcon, (void **) &pSMB, | |
5077 | (void **) &pSMBr); | |
5078 | if (rc) | |
5079 | return rc; | |
5080 | ||
5081 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5082 | name_len = | |
50c2f753 | 5083 | ConvertToUCS((__le16 *) pSMB->fileName, fileName, |
1da177e4 LT |
5084 | PATH_MAX, nls_codepage); |
5085 | name_len++; /* trailing null */ | |
5086 | name_len *= 2; | |
50c2f753 | 5087 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5088 | name_len = strnlen(fileName, PATH_MAX); |
5089 | name_len++; /* trailing null */ | |
5090 | strncpy(pSMB->fileName, fileName, name_len); | |
5091 | } | |
5092 | pSMB->attr = cpu_to_le16(dos_attrs); | |
5093 | pSMB->BufferFormat = 0x04; | |
5094 | pSMB->hdr.smb_buf_length += name_len + 1; | |
5095 | pSMB->ByteCount = cpu_to_le16(name_len + 1); | |
5096 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5097 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5098 | if (rc) |
1da177e4 | 5099 | cFYI(1, ("Error in LegacySetAttr = %d", rc)); |
1da177e4 LT |
5100 | |
5101 | cifs_buf_release(pSMB); | |
5102 | ||
5103 | if (rc == -EAGAIN) | |
5104 | goto SetAttrLgcyRetry; | |
5105 | ||
5106 | return rc; | |
5107 | } | |
5108 | #endif /* temporarily unneeded SetAttr legacy function */ | |
5109 | ||
5110 | int | |
4e1e7fb9 | 5111 | CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName, |
063ea279 | 5112 | const struct cifs_unix_set_info_args *args, |
4e1e7fb9 | 5113 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5114 | { |
5115 | TRANSACTION2_SPI_REQ *pSMB = NULL; | |
5116 | TRANSACTION2_SPI_RSP *pSMBr = NULL; | |
5117 | int name_len; | |
5118 | int rc = 0; | |
5119 | int bytes_returned = 0; | |
5120 | FILE_UNIX_BASIC_INFO *data_offset; | |
5121 | __u16 params, param_offset, offset, count, byte_count; | |
4e1e7fb9 | 5122 | __u64 mode = args->mode; |
1da177e4 LT |
5123 | |
5124 | cFYI(1, ("In SetUID/GID/Mode")); | |
5125 | setPermsRetry: | |
5126 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5127 | (void **) &pSMBr); | |
5128 | if (rc) | |
5129 | return rc; | |
5130 | ||
5131 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5132 | name_len = | |
50c2f753 | 5133 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5134 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5135 | name_len++; /* trailing null */ |
5136 | name_len *= 2; | |
3e87d803 | 5137 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5138 | name_len = strnlen(fileName, PATH_MAX); |
5139 | name_len++; /* trailing null */ | |
5140 | strncpy(pSMB->FileName, fileName, name_len); | |
5141 | } | |
5142 | ||
5143 | params = 6 + name_len; | |
26f57364 | 5144 | count = sizeof(FILE_UNIX_BASIC_INFO); |
1da177e4 | 5145 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5146 | /* BB find max SMB PDU from sess structure BB */ |
5147 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5148 | pSMB->MaxSetupCount = 0; |
5149 | pSMB->Reserved = 0; | |
5150 | pSMB->Flags = 0; | |
5151 | pSMB->Timeout = 0; | |
5152 | pSMB->Reserved2 = 0; | |
5153 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5154 | InformationLevel) - 4; |
1da177e4 LT |
5155 | offset = param_offset + params; |
5156 | data_offset = | |
5157 | (FILE_UNIX_BASIC_INFO *) ((char *) &pSMB->hdr.Protocol + | |
5158 | offset); | |
5159 | memset(data_offset, 0, count); | |
5160 | pSMB->DataOffset = cpu_to_le16(offset); | |
5161 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5162 | pSMB->SetupCount = 1; | |
5163 | pSMB->Reserved3 = 0; | |
5164 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5165 | byte_count = 3 /* pad */ + params + count; | |
5166 | pSMB->ParameterCount = cpu_to_le16(params); | |
5167 | pSMB->DataCount = cpu_to_le16(count); | |
5168 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5169 | pSMB->TotalDataCount = pSMB->DataCount; | |
5170 | pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); | |
5171 | pSMB->Reserved4 = 0; | |
5172 | pSMB->hdr.smb_buf_length += byte_count; | |
c7af1857 SF |
5173 | /* Samba server ignores set of file size to zero due to bugs in some |
5174 | older clients, but we should be precise - we use SetFileSize to | |
5175 | set file size and do not want to truncate file size to zero | |
5176 | accidently as happened on one Samba server beta by putting | |
50c2f753 | 5177 | zero instead of -1 here */ |
4e1e7fb9 JL |
5178 | data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64); |
5179 | data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64); | |
5180 | data_offset->LastStatusChange = cpu_to_le64(args->ctime); | |
5181 | data_offset->LastAccessTime = cpu_to_le64(args->atime); | |
5182 | data_offset->LastModificationTime = cpu_to_le64(args->mtime); | |
5183 | data_offset->Uid = cpu_to_le64(args->uid); | |
5184 | data_offset->Gid = cpu_to_le64(args->gid); | |
1da177e4 | 5185 | /* better to leave device as zero when it is */ |
4e1e7fb9 JL |
5186 | data_offset->DevMajor = cpu_to_le64(MAJOR(args->device)); |
5187 | data_offset->DevMinor = cpu_to_le64(MINOR(args->device)); | |
1da177e4 | 5188 | data_offset->Permissions = cpu_to_le64(mode); |
50c2f753 | 5189 | |
790fe579 | 5190 | if (S_ISREG(mode)) |
1da177e4 | 5191 | data_offset->Type = cpu_to_le32(UNIX_FILE); |
790fe579 | 5192 | else if (S_ISDIR(mode)) |
1da177e4 | 5193 | data_offset->Type = cpu_to_le32(UNIX_DIR); |
790fe579 | 5194 | else if (S_ISLNK(mode)) |
1da177e4 | 5195 | data_offset->Type = cpu_to_le32(UNIX_SYMLINK); |
790fe579 | 5196 | else if (S_ISCHR(mode)) |
1da177e4 | 5197 | data_offset->Type = cpu_to_le32(UNIX_CHARDEV); |
790fe579 | 5198 | else if (S_ISBLK(mode)) |
1da177e4 | 5199 | data_offset->Type = cpu_to_le32(UNIX_BLOCKDEV); |
790fe579 | 5200 | else if (S_ISFIFO(mode)) |
1da177e4 | 5201 | data_offset->Type = cpu_to_le32(UNIX_FIFO); |
790fe579 | 5202 | else if (S_ISSOCK(mode)) |
1da177e4 LT |
5203 | data_offset->Type = cpu_to_le32(UNIX_SOCKET); |
5204 | ||
5205 | ||
5206 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5207 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5208 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5209 | if (rc) |
1da177e4 | 5210 | cFYI(1, ("SetPathInfo (perms) returned %d", rc)); |
1da177e4 | 5211 | |
0d817bc0 | 5212 | cifs_buf_release(pSMB); |
1da177e4 LT |
5213 | if (rc == -EAGAIN) |
5214 | goto setPermsRetry; | |
5215 | return rc; | |
5216 | } | |
5217 | ||
50c2f753 | 5218 | int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon, |
167a251a | 5219 | const int notify_subdirs, const __u16 netfid, |
50c2f753 | 5220 | __u32 filter, struct file *pfile, int multishot, |
167a251a | 5221 | const struct nls_table *nls_codepage) |
1da177e4 LT |
5222 | { |
5223 | int rc = 0; | |
50c2f753 SF |
5224 | struct smb_com_transaction_change_notify_req *pSMB = NULL; |
5225 | struct smb_com_ntransaction_change_notify_rsp *pSMBr = NULL; | |
abb15b8a | 5226 | struct dir_notify_req *dnotify_req; |
1da177e4 LT |
5227 | int bytes_returned; |
5228 | ||
50c2f753 | 5229 | cFYI(1, ("In CIFSSMBNotify for file handle %d", (int)netfid)); |
1da177e4 | 5230 | rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, |
50c2f753 | 5231 | (void **) &pSMBr); |
1da177e4 LT |
5232 | if (rc) |
5233 | return rc; | |
5234 | ||
5235 | pSMB->TotalParameterCount = 0 ; | |
5236 | pSMB->TotalDataCount = 0; | |
5237 | pSMB->MaxParameterCount = cpu_to_le32(2); | |
5238 | /* BB find exact data count max from sess structure BB */ | |
5239 | pSMB->MaxDataCount = 0; /* same in little endian or be */ | |
0a4b92c0 SF |
5240 | /* BB VERIFY verify which is correct for above BB */ |
5241 | pSMB->MaxDataCount = cpu_to_le32((tcon->ses->server->maxBuf - | |
5242 | MAX_CIFS_HDR_SIZE) & 0xFFFFFF00); | |
5243 | ||
1da177e4 LT |
5244 | pSMB->MaxSetupCount = 4; |
5245 | pSMB->Reserved = 0; | |
5246 | pSMB->ParameterOffset = 0; | |
5247 | pSMB->DataCount = 0; | |
5248 | pSMB->DataOffset = 0; | |
5249 | pSMB->SetupCount = 4; /* single byte does not need le conversion */ | |
5250 | pSMB->SubCommand = cpu_to_le16(NT_TRANSACT_NOTIFY_CHANGE); | |
5251 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
790fe579 | 5252 | if (notify_subdirs) |
1da177e4 LT |
5253 | pSMB->WatchTree = 1; /* one byte - no le conversion needed */ |
5254 | pSMB->Reserved2 = 0; | |
5255 | pSMB->CompletionFilter = cpu_to_le32(filter); | |
5256 | pSMB->Fid = netfid; /* file handle always le */ | |
5257 | pSMB->ByteCount = 0; | |
5258 | ||
5259 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
133672ef SF |
5260 | (struct smb_hdr *)pSMBr, &bytes_returned, |
5261 | CIFS_ASYNC_OP); | |
1da177e4 LT |
5262 | if (rc) { |
5263 | cFYI(1, ("Error in Notify = %d", rc)); | |
ff5dbd9e SF |
5264 | } else { |
5265 | /* Add file to outstanding requests */ | |
50c2f753 | 5266 | /* BB change to kmem cache alloc */ |
5cbded58 | 5267 | dnotify_req = kmalloc( |
47c786e7 SF |
5268 | sizeof(struct dir_notify_req), |
5269 | GFP_KERNEL); | |
790fe579 | 5270 | if (dnotify_req) { |
47c786e7 SF |
5271 | dnotify_req->Pid = pSMB->hdr.Pid; |
5272 | dnotify_req->PidHigh = pSMB->hdr.PidHigh; | |
5273 | dnotify_req->Mid = pSMB->hdr.Mid; | |
5274 | dnotify_req->Tid = pSMB->hdr.Tid; | |
5275 | dnotify_req->Uid = pSMB->hdr.Uid; | |
5276 | dnotify_req->netfid = netfid; | |
5277 | dnotify_req->pfile = pfile; | |
5278 | dnotify_req->filter = filter; | |
5279 | dnotify_req->multishot = multishot; | |
5280 | spin_lock(&GlobalMid_Lock); | |
50c2f753 | 5281 | list_add_tail(&dnotify_req->lhead, |
47c786e7 SF |
5282 | &GlobalDnotifyReqList); |
5283 | spin_unlock(&GlobalMid_Lock); | |
50c2f753 | 5284 | } else |
47c786e7 | 5285 | rc = -ENOMEM; |
1da177e4 LT |
5286 | } |
5287 | cifs_buf_release(pSMB); | |
50c2f753 | 5288 | return rc; |
1da177e4 LT |
5289 | } |
5290 | #ifdef CONFIG_CIFS_XATTR | |
5291 | ssize_t | |
5292 | CIFSSMBQAllEAs(const int xid, struct cifsTconInfo *tcon, | |
5293 | const unsigned char *searchName, | |
50c2f753 | 5294 | char *EAData, size_t buf_size, |
737b758c | 5295 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5296 | { |
5297 | /* BB assumes one setup word */ | |
5298 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5299 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5300 | int rc = 0; | |
5301 | int bytes_returned; | |
5302 | int name_len; | |
50c2f753 SF |
5303 | struct fea *temp_fea; |
5304 | char *temp_ptr; | |
1da177e4 LT |
5305 | __u16 params, byte_count; |
5306 | ||
5307 | cFYI(1, ("In Query All EAs path %s", searchName)); | |
5308 | QAllEAsRetry: | |
5309 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5310 | (void **) &pSMBr); | |
5311 | if (rc) | |
5312 | return rc; | |
5313 | ||
5314 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5315 | name_len = | |
50c2f753 | 5316 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5317 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5318 | name_len++; /* trailing null */ |
5319 | name_len *= 2; | |
5320 | } else { /* BB improve the check for buffer overruns BB */ | |
5321 | name_len = strnlen(searchName, PATH_MAX); | |
5322 | name_len++; /* trailing null */ | |
5323 | strncpy(pSMB->FileName, searchName, name_len); | |
5324 | } | |
5325 | ||
50c2f753 | 5326 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5327 | pSMB->TotalDataCount = 0; |
5328 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
5329 | /* BB find exact max SMB PDU from sess structure BB */ |
5330 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
5331 | pSMB->MaxSetupCount = 0; |
5332 | pSMB->Reserved = 0; | |
5333 | pSMB->Flags = 0; | |
5334 | pSMB->Timeout = 0; | |
5335 | pSMB->Reserved2 = 0; | |
5336 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5337 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5338 | pSMB->DataCount = 0; |
5339 | pSMB->DataOffset = 0; | |
5340 | pSMB->SetupCount = 1; | |
5341 | pSMB->Reserved3 = 0; | |
5342 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5343 | byte_count = params + 1 /* pad */ ; | |
5344 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5345 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5346 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5347 | pSMB->Reserved4 = 0; | |
5348 | pSMB->hdr.smb_buf_length += byte_count; | |
5349 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5350 | ||
5351 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5352 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5353 | if (rc) { | |
5354 | cFYI(1, ("Send error in QueryAllEAs = %d", rc)); | |
5355 | } else { /* decode response */ | |
5356 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5357 | ||
5358 | /* BB also check enough total bytes returned */ | |
5359 | /* BB we need to improve the validity checking | |
5360 | of these trans2 responses */ | |
50c2f753 | 5361 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5362 | rc = -EIO; /* bad smb */ |
5363 | /* else if (pFindData){ | |
5364 | memcpy((char *) pFindData, | |
5365 | (char *) &pSMBr->hdr.Protocol + | |
5366 | data_offset, kl); | |
5367 | }*/ else { | |
5368 | /* check that length of list is not more than bcc */ | |
5369 | /* check that each entry does not go beyond length | |
5370 | of list */ | |
5371 | /* check that each element of each entry does not | |
5372 | go beyond end of list */ | |
5373 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5374 | struct fealist *ea_response_data; |
1da177e4 LT |
5375 | rc = 0; |
5376 | /* validate_trans2_offsets() */ | |
790fe579 | 5377 | /* BB check if start of smb + data_offset > &bcc+ bcc */ |
1da177e4 LT |
5378 | ea_response_data = (struct fealist *) |
5379 | (((char *) &pSMBr->hdr.Protocol) + | |
5380 | data_offset); | |
5381 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5382 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5383 | if (name_len <= 8) { |
1da177e4 | 5384 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5385 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5386 | } else { |
5387 | /* account for ea list len */ | |
5388 | name_len -= 4; | |
5389 | temp_fea = ea_response_data->list; | |
5390 | temp_ptr = (char *)temp_fea; | |
50c2f753 | 5391 | while (name_len > 0) { |
1da177e4 LT |
5392 | __u16 value_len; |
5393 | name_len -= 4; | |
5394 | temp_ptr += 4; | |
5395 | rc += temp_fea->name_len; | |
5396 | /* account for prefix user. and trailing null */ | |
790fe579 SF |
5397 | rc = rc + 5 + 1; |
5398 | if (rc < (int)buf_size) { | |
50c2f753 SF |
5399 | memcpy(EAData, "user.", 5); |
5400 | EAData += 5; | |
5401 | memcpy(EAData, temp_ptr, | |
5402 | temp_fea->name_len); | |
5403 | EAData += temp_fea->name_len; | |
1da177e4 LT |
5404 | /* null terminate name */ |
5405 | *EAData = 0; | |
5406 | EAData = EAData + 1; | |
790fe579 | 5407 | } else if (buf_size == 0) { |
1da177e4 LT |
5408 | /* skip copy - calc size only */ |
5409 | } else { | |
5410 | /* stop before overrun buffer */ | |
5411 | rc = -ERANGE; | |
5412 | break; | |
5413 | } | |
5414 | name_len -= temp_fea->name_len; | |
5415 | temp_ptr += temp_fea->name_len; | |
5416 | /* account for trailing null */ | |
5417 | name_len--; | |
5418 | temp_ptr++; | |
50c2f753 SF |
5419 | value_len = |
5420 | le16_to_cpu(temp_fea->value_len); | |
1da177e4 LT |
5421 | name_len -= value_len; |
5422 | temp_ptr += value_len; | |
50c2f753 SF |
5423 | /* BB check that temp_ptr is still |
5424 | within the SMB BB*/ | |
5425 | ||
5426 | /* no trailing null to account for | |
5427 | in value len */ | |
1da177e4 LT |
5428 | /* go on to next EA */ |
5429 | temp_fea = (struct fea *)temp_ptr; | |
5430 | } | |
5431 | } | |
5432 | } | |
5433 | } | |
0d817bc0 | 5434 | cifs_buf_release(pSMB); |
1da177e4 LT |
5435 | if (rc == -EAGAIN) |
5436 | goto QAllEAsRetry; | |
5437 | ||
5438 | return (ssize_t)rc; | |
5439 | } | |
5440 | ||
50c2f753 SF |
5441 | ssize_t CIFSSMBQueryEA(const int xid, struct cifsTconInfo *tcon, |
5442 | const unsigned char *searchName, const unsigned char *ea_name, | |
5443 | unsigned char *ea_value, size_t buf_size, | |
737b758c | 5444 | const struct nls_table *nls_codepage, int remap) |
1da177e4 LT |
5445 | { |
5446 | TRANSACTION2_QPI_REQ *pSMB = NULL; | |
5447 | TRANSACTION2_QPI_RSP *pSMBr = NULL; | |
5448 | int rc = 0; | |
5449 | int bytes_returned; | |
5450 | int name_len; | |
50c2f753 SF |
5451 | struct fea *temp_fea; |
5452 | char *temp_ptr; | |
1da177e4 LT |
5453 | __u16 params, byte_count; |
5454 | ||
5455 | cFYI(1, ("In Query EA path %s", searchName)); | |
5456 | QEARetry: | |
5457 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5458 | (void **) &pSMBr); | |
5459 | if (rc) | |
5460 | return rc; | |
5461 | ||
5462 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5463 | name_len = | |
50c2f753 | 5464 | cifsConvertToUCS((__le16 *) pSMB->FileName, searchName, |
737b758c | 5465 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5466 | name_len++; /* trailing null */ |
5467 | name_len *= 2; | |
5468 | } else { /* BB improve the check for buffer overruns BB */ | |
5469 | name_len = strnlen(searchName, PATH_MAX); | |
5470 | name_len++; /* trailing null */ | |
5471 | strncpy(pSMB->FileName, searchName, name_len); | |
5472 | } | |
5473 | ||
50c2f753 | 5474 | params = 2 /* level */ + 4 /* reserved */ + name_len /* includes NUL */; |
1da177e4 LT |
5475 | pSMB->TotalDataCount = 0; |
5476 | pSMB->MaxParameterCount = cpu_to_le16(2); | |
582d21e5 SF |
5477 | /* BB find exact max SMB PDU from sess structure BB */ |
5478 | pSMB->MaxDataCount = cpu_to_le16(4000); | |
1da177e4 LT |
5479 | pSMB->MaxSetupCount = 0; |
5480 | pSMB->Reserved = 0; | |
5481 | pSMB->Flags = 0; | |
5482 | pSMB->Timeout = 0; | |
5483 | pSMB->Reserved2 = 0; | |
5484 | pSMB->ParameterOffset = cpu_to_le16(offsetof( | |
50c2f753 | 5485 | struct smb_com_transaction2_qpi_req, InformationLevel) - 4); |
1da177e4 LT |
5486 | pSMB->DataCount = 0; |
5487 | pSMB->DataOffset = 0; | |
5488 | pSMB->SetupCount = 1; | |
5489 | pSMB->Reserved3 = 0; | |
5490 | pSMB->SubCommand = cpu_to_le16(TRANS2_QUERY_PATH_INFORMATION); | |
5491 | byte_count = params + 1 /* pad */ ; | |
5492 | pSMB->TotalParameterCount = cpu_to_le16(params); | |
5493 | pSMB->ParameterCount = pSMB->TotalParameterCount; | |
5494 | pSMB->InformationLevel = cpu_to_le16(SMB_INFO_QUERY_ALL_EAS); | |
5495 | pSMB->Reserved4 = 0; | |
5496 | pSMB->hdr.smb_buf_length += byte_count; | |
5497 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5498 | ||
5499 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5500 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
5501 | if (rc) { | |
5502 | cFYI(1, ("Send error in Query EA = %d", rc)); | |
5503 | } else { /* decode response */ | |
5504 | rc = validate_t2((struct smb_t2_rsp *)pSMBr); | |
5505 | ||
5506 | /* BB also check enough total bytes returned */ | |
5507 | /* BB we need to improve the validity checking | |
5508 | of these trans2 responses */ | |
50c2f753 | 5509 | if (rc || (pSMBr->ByteCount < 4)) |
1da177e4 LT |
5510 | rc = -EIO; /* bad smb */ |
5511 | /* else if (pFindData){ | |
5512 | memcpy((char *) pFindData, | |
5513 | (char *) &pSMBr->hdr.Protocol + | |
5514 | data_offset, kl); | |
5515 | }*/ else { | |
5516 | /* check that length of list is not more than bcc */ | |
5517 | /* check that each entry does not go beyond length | |
5518 | of list */ | |
5519 | /* check that each element of each entry does not | |
5520 | go beyond end of list */ | |
5521 | __u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset); | |
50c2f753 | 5522 | struct fealist *ea_response_data; |
1da177e4 LT |
5523 | rc = -ENODATA; |
5524 | /* validate_trans2_offsets() */ | |
790fe579 | 5525 | /* BB check if start of smb + data_offset > &bcc+ bcc*/ |
1da177e4 LT |
5526 | ea_response_data = (struct fealist *) |
5527 | (((char *) &pSMBr->hdr.Protocol) + | |
5528 | data_offset); | |
5529 | name_len = le32_to_cpu(ea_response_data->list_len); | |
50c2f753 | 5530 | cFYI(1, ("ea length %d", name_len)); |
790fe579 | 5531 | if (name_len <= 8) { |
1da177e4 | 5532 | /* returned EA size zeroed at top of function */ |
50c2f753 | 5533 | cFYI(1, ("empty EA list returned from server")); |
1da177e4 LT |
5534 | } else { |
5535 | /* account for ea list len */ | |
5536 | name_len -= 4; | |
5537 | temp_fea = ea_response_data->list; | |
5538 | temp_ptr = (char *)temp_fea; | |
5539 | /* loop through checking if we have a matching | |
5540 | name and then return the associated value */ | |
50c2f753 | 5541 | while (name_len > 0) { |
1da177e4 LT |
5542 | __u16 value_len; |
5543 | name_len -= 4; | |
5544 | temp_ptr += 4; | |
50c2f753 SF |
5545 | value_len = |
5546 | le16_to_cpu(temp_fea->value_len); | |
5547 | /* BB validate that value_len falls within SMB, | |
5548 | even though maximum for name_len is 255 */ | |
790fe579 | 5549 | if (memcmp(temp_fea->name, ea_name, |
1da177e4 LT |
5550 | temp_fea->name_len) == 0) { |
5551 | /* found a match */ | |
5552 | rc = value_len; | |
5553 | /* account for prefix user. and trailing null */ | |
790fe579 | 5554 | if (rc <= (int)buf_size) { |
1da177e4 LT |
5555 | memcpy(ea_value, |
5556 | temp_fea->name+temp_fea->name_len+1, | |
5557 | rc); | |
50c2f753 SF |
5558 | /* ea values, unlike ea |
5559 | names, are not null | |
5560 | terminated */ | |
790fe579 | 5561 | } else if (buf_size == 0) { |
1da177e4 LT |
5562 | /* skip copy - calc size only */ |
5563 | } else { | |
50c2f753 | 5564 | /* stop before overrun buffer */ |
1da177e4 LT |
5565 | rc = -ERANGE; |
5566 | } | |
5567 | break; | |
5568 | } | |
5569 | name_len -= temp_fea->name_len; | |
5570 | temp_ptr += temp_fea->name_len; | |
5571 | /* account for trailing null */ | |
5572 | name_len--; | |
5573 | temp_ptr++; | |
5574 | name_len -= value_len; | |
5575 | temp_ptr += value_len; | |
50c2f753 SF |
5576 | /* No trailing null to account for in |
5577 | value_len. Go on to next EA */ | |
1da177e4 LT |
5578 | temp_fea = (struct fea *)temp_ptr; |
5579 | } | |
50c2f753 | 5580 | } |
1da177e4 LT |
5581 | } |
5582 | } | |
0d817bc0 | 5583 | cifs_buf_release(pSMB); |
1da177e4 LT |
5584 | if (rc == -EAGAIN) |
5585 | goto QEARetry; | |
5586 | ||
5587 | return (ssize_t)rc; | |
5588 | } | |
5589 | ||
5590 | int | |
5591 | CIFSSMBSetEA(const int xid, struct cifsTconInfo *tcon, const char *fileName, | |
50c2f753 SF |
5592 | const char *ea_name, const void *ea_value, |
5593 | const __u16 ea_value_len, const struct nls_table *nls_codepage, | |
5594 | int remap) | |
1da177e4 LT |
5595 | { |
5596 | struct smb_com_transaction2_spi_req *pSMB = NULL; | |
5597 | struct smb_com_transaction2_spi_rsp *pSMBr = NULL; | |
5598 | struct fealist *parm_data; | |
5599 | int name_len; | |
5600 | int rc = 0; | |
5601 | int bytes_returned = 0; | |
5602 | __u16 params, param_offset, byte_count, offset, count; | |
5603 | ||
5604 | cFYI(1, ("In SetEA")); | |
5605 | SetEARetry: | |
5606 | rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB, | |
5607 | (void **) &pSMBr); | |
5608 | if (rc) | |
5609 | return rc; | |
5610 | ||
5611 | if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { | |
5612 | name_len = | |
50c2f753 | 5613 | cifsConvertToUCS((__le16 *) pSMB->FileName, fileName, |
737b758c | 5614 | PATH_MAX, nls_codepage, remap); |
1da177e4 LT |
5615 | name_len++; /* trailing null */ |
5616 | name_len *= 2; | |
50c2f753 | 5617 | } else { /* BB improve the check for buffer overruns BB */ |
1da177e4 LT |
5618 | name_len = strnlen(fileName, PATH_MAX); |
5619 | name_len++; /* trailing null */ | |
5620 | strncpy(pSMB->FileName, fileName, name_len); | |
5621 | } | |
5622 | ||
5623 | params = 6 + name_len; | |
5624 | ||
5625 | /* done calculating parms using name_len of file name, | |
5626 | now use name_len to calculate length of ea name | |
5627 | we are going to create in the inode xattrs */ | |
790fe579 | 5628 | if (ea_name == NULL) |
1da177e4 LT |
5629 | name_len = 0; |
5630 | else | |
50c2f753 | 5631 | name_len = strnlen(ea_name, 255); |
1da177e4 | 5632 | |
dae5dbdb | 5633 | count = sizeof(*parm_data) + ea_value_len + name_len; |
1da177e4 | 5634 | pSMB->MaxParameterCount = cpu_to_le16(2); |
582d21e5 SF |
5635 | /* BB find max SMB PDU from sess */ |
5636 | pSMB->MaxDataCount = cpu_to_le16(1000); | |
1da177e4 LT |
5637 | pSMB->MaxSetupCount = 0; |
5638 | pSMB->Reserved = 0; | |
5639 | pSMB->Flags = 0; | |
5640 | pSMB->Timeout = 0; | |
5641 | pSMB->Reserved2 = 0; | |
5642 | param_offset = offsetof(struct smb_com_transaction2_spi_req, | |
50c2f753 | 5643 | InformationLevel) - 4; |
1da177e4 LT |
5644 | offset = param_offset + params; |
5645 | pSMB->InformationLevel = | |
5646 | cpu_to_le16(SMB_SET_FILE_EA); | |
5647 | ||
5648 | parm_data = | |
5649 | (struct fealist *) (((char *) &pSMB->hdr.Protocol) + | |
5650 | offset); | |
5651 | pSMB->ParameterOffset = cpu_to_le16(param_offset); | |
5652 | pSMB->DataOffset = cpu_to_le16(offset); | |
5653 | pSMB->SetupCount = 1; | |
5654 | pSMB->Reserved3 = 0; | |
5655 | pSMB->SubCommand = cpu_to_le16(TRANS2_SET_PATH_INFORMATION); | |
5656 | byte_count = 3 /* pad */ + params + count; | |
5657 | pSMB->DataCount = cpu_to_le16(count); | |
5658 | parm_data->list_len = cpu_to_le32(count); | |
5659 | parm_data->list[0].EA_flags = 0; | |
5660 | /* we checked above that name len is less than 255 */ | |
53b3531b | 5661 | parm_data->list[0].name_len = (__u8)name_len; |
1da177e4 | 5662 | /* EA names are always ASCII */ |
790fe579 | 5663 | if (ea_name) |
50c2f753 | 5664 | strncpy(parm_data->list[0].name, ea_name, name_len); |
1da177e4 LT |
5665 | parm_data->list[0].name[name_len] = 0; |
5666 | parm_data->list[0].value_len = cpu_to_le16(ea_value_len); | |
5667 | /* caller ensures that ea_value_len is less than 64K but | |
5668 | we need to ensure that it fits within the smb */ | |
5669 | ||
50c2f753 SF |
5670 | /*BB add length check to see if it would fit in |
5671 | negotiated SMB buffer size BB */ | |
790fe579 SF |
5672 | /* if (ea_value_len > buffer_size - 512 (enough for header)) */ |
5673 | if (ea_value_len) | |
50c2f753 SF |
5674 | memcpy(parm_data->list[0].name+name_len+1, |
5675 | ea_value, ea_value_len); | |
1da177e4 LT |
5676 | |
5677 | pSMB->TotalDataCount = pSMB->DataCount; | |
5678 | pSMB->ParameterCount = cpu_to_le16(params); | |
5679 | pSMB->TotalParameterCount = pSMB->ParameterCount; | |
5680 | pSMB->Reserved4 = 0; | |
5681 | pSMB->hdr.smb_buf_length += byte_count; | |
5682 | pSMB->ByteCount = cpu_to_le16(byte_count); | |
5683 | rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, | |
5684 | (struct smb_hdr *) pSMBr, &bytes_returned, 0); | |
ad7a2926 | 5685 | if (rc) |
1da177e4 | 5686 | cFYI(1, ("SetPathInfo (EA) returned %d", rc)); |
1da177e4 LT |
5687 | |
5688 | cifs_buf_release(pSMB); | |
5689 | ||
5690 | if (rc == -EAGAIN) | |
5691 | goto SetEARetry; | |
5692 | ||
5693 | return rc; | |
5694 | } | |
5695 | ||
5696 | #endif |