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