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