Commit | Line | Data |
---|---|---|
be4cb9e3 PS |
1 | /* |
2 | * fs/cifs/smb2inode.c | |
3 | * | |
4 | * Copyright (C) International Business Machines Corp., 2002, 2011 | |
5 | * Etersoft, 2012 | |
6 | * Author(s): Pavel Shilovsky (pshilovsky@samba.org), | |
7 | * Steve French (sfrench@us.ibm.com) | |
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 | #include <linux/fs.h> | |
24 | #include <linux/stat.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/pagemap.h> | |
27 | #include <asm/div64.h> | |
28 | #include "cifsfs.h" | |
29 | #include "cifspdu.h" | |
30 | #include "cifsglob.h" | |
31 | #include "cifsproto.h" | |
32 | #include "cifs_debug.h" | |
33 | #include "cifs_fs_sb.h" | |
34 | #include "cifs_unicode.h" | |
35 | #include "fscache.h" | |
36 | #include "smb2glob.h" | |
37 | #include "smb2pdu.h" | |
38 | #include "smb2proto.h" | |
39 | ||
8191576a SF |
40 | static void |
41 | free_set_inf_compound(struct smb_rqst *rqst) | |
42 | { | |
43 | if (rqst[1].rq_iov) | |
44 | SMB2_set_info_free(&rqst[1]); | |
45 | if (rqst[2].rq_iov) | |
46 | SMB2_close_free(&rqst[2]); | |
47 | } | |
48 | ||
49 | ||
c5a5f38f RS |
50 | static int |
51 | smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon, | |
52 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
53 | __u32 desired_access, __u32 create_disposition, | |
c3ca78e2 | 54 | __u32 create_options, umode_t mode, void *ptr, int command, |
8de9e86c | 55 | struct cifsFileInfo *cfile) |
c5a5f38f RS |
56 | { |
57 | int rc; | |
58 | __le16 *utf16_path = NULL; | |
59 | __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; | |
60 | struct cifs_open_parms oparms; | |
61 | struct cifs_fid fid; | |
62 | struct cifs_ses *ses = tcon->ses; | |
c5a5f38f RS |
63 | int num_rqst = 0; |
64 | struct smb_rqst rqst[3]; | |
65 | int resp_buftype[3]; | |
66 | struct kvec rsp_iov[3]; | |
67 | struct kvec open_iov[SMB2_CREATE_IOV_SIZE]; | |
68 | struct kvec qi_iov[1]; | |
14e562ad | 69 | struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE]; |
c5a5f38f | 70 | struct kvec close_iov[1]; |
c2e0fe3f | 71 | struct smb2_query_info_rsp *qi_rsp = NULL; |
c5a5f38f | 72 | int flags = 0; |
c2e0fe3f | 73 | __u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0}; |
bb435512 RS |
74 | unsigned int size[2]; |
75 | void *data[2]; | |
76 | struct smb2_file_rename_info rename_info; | |
77 | struct smb2_file_link_info link_info; | |
78 | int len; | |
c5a5f38f RS |
79 | |
80 | if (smb3_encryption_required(tcon)) | |
81 | flags |= CIFS_TRANSFORM_REQ; | |
82 | ||
83 | memset(rqst, 0, sizeof(rqst)); | |
84 | resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER; | |
85 | memset(rsp_iov, 0, sizeof(rsp_iov)); | |
86 | ||
8de9e86c RS |
87 | /* We already have a handle so we can skip the open */ |
88 | if (cfile) | |
89 | goto after_open; | |
90 | ||
c5a5f38f RS |
91 | /* Open */ |
92 | utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb); | |
8de9e86c RS |
93 | if (!utf16_path) { |
94 | rc = -ENOMEM; | |
95 | goto finished; | |
96 | } | |
c5a5f38f RS |
97 | |
98 | oparms.tcon = tcon; | |
99 | oparms.desired_access = desired_access; | |
100 | oparms.disposition = create_disposition; | |
101 | oparms.create_options = create_options; | |
4d5bdf28 SF |
102 | if (backup_cred(cifs_sb)) |
103 | oparms.create_options |= CREATE_OPEN_BACKUP_INTENT; | |
c5a5f38f RS |
104 | oparms.fid = &fid; |
105 | oparms.reconnect = false; | |
c3ca78e2 | 106 | oparms.mode = mode; |
c5a5f38f RS |
107 | |
108 | memset(&open_iov, 0, sizeof(open_iov)); | |
109 | rqst[num_rqst].rq_iov = open_iov; | |
110 | rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE; | |
111 | rc = SMB2_open_init(tcon, &rqst[num_rqst], &oplock, &oparms, | |
112 | utf16_path); | |
113 | kfree(utf16_path); | |
114 | if (rc) | |
115 | goto finished; | |
116 | ||
8de9e86c RS |
117 | smb2_set_next_command(tcon, &rqst[num_rqst]); |
118 | after_open: | |
119 | num_rqst++; | |
120 | rc = 0; | |
c5a5f38f RS |
121 | |
122 | /* Operation */ | |
123 | switch (command) { | |
124 | case SMB2_OP_QUERY_INFO: | |
125 | memset(&qi_iov, 0, sizeof(qi_iov)); | |
126 | rqst[num_rqst].rq_iov = qi_iov; | |
127 | rqst[num_rqst].rq_nvec = 1; | |
128 | ||
496902dc RS |
129 | if (cfile) |
130 | rc = SMB2_query_info_init(tcon, &rqst[num_rqst], | |
131 | cfile->fid.persistent_fid, | |
132 | cfile->fid.volatile_fid, | |
133 | FILE_ALL_INFORMATION, | |
c5a5f38f RS |
134 | SMB2_O_INFO_FILE, 0, |
135 | sizeof(struct smb2_file_all_info) + | |
f5b05d62 | 136 | PATH_MAX * 2, 0, NULL); |
496902dc RS |
137 | else { |
138 | rc = SMB2_query_info_init(tcon, &rqst[num_rqst], | |
139 | COMPOUND_FID, | |
140 | COMPOUND_FID, | |
141 | FILE_ALL_INFORMATION, | |
142 | SMB2_O_INFO_FILE, 0, | |
143 | sizeof(struct smb2_file_all_info) + | |
144 | PATH_MAX * 2, 0, NULL); | |
145 | if (!rc) { | |
146 | smb2_set_next_command(tcon, &rqst[num_rqst]); | |
147 | smb2_set_related(&rqst[num_rqst]); | |
148 | } | |
149 | } | |
150 | ||
88a92c91 RS |
151 | if (rc) |
152 | goto finished; | |
496902dc | 153 | num_rqst++; |
8191576a SF |
154 | trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid, |
155 | full_path); | |
c5a5f38f | 156 | break; |
47dd9597 | 157 | case SMB2_OP_DELETE: |
8191576a | 158 | trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path); |
47dd9597 | 159 | break; |
f733e393 RS |
160 | case SMB2_OP_MKDIR: |
161 | /* | |
162 | * Directories are created through parameters in the | |
163 | * SMB2_open() call. | |
164 | */ | |
8191576a | 165 | trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path); |
f733e393 | 166 | break; |
c2e0fe3f RS |
167 | case SMB2_OP_RMDIR: |
168 | memset(&si_iov, 0, sizeof(si_iov)); | |
169 | rqst[num_rqst].rq_iov = si_iov; | |
170 | rqst[num_rqst].rq_nvec = 1; | |
171 | ||
271b9c0c | 172 | size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */ |
c2e0fe3f RS |
173 | data[0] = &delete_pending[0]; |
174 | ||
175 | rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID, | |
176 | COMPOUND_FID, current->tgid, | |
177 | FILE_DISPOSITION_INFORMATION, | |
178 | SMB2_O_INFO_FILE, 0, data, size); | |
88a92c91 RS |
179 | if (rc) |
180 | goto finished; | |
e77fe73c | 181 | smb2_set_next_command(tcon, &rqst[num_rqst]); |
c2e0fe3f | 182 | smb2_set_related(&rqst[num_rqst++]); |
8191576a | 183 | trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path); |
c2e0fe3f | 184 | break; |
f7bfe04b RS |
185 | case SMB2_OP_SET_EOF: |
186 | memset(&si_iov, 0, sizeof(si_iov)); | |
187 | rqst[num_rqst].rq_iov = si_iov; | |
188 | rqst[num_rqst].rq_nvec = 1; | |
189 | ||
190 | size[0] = 8; /* sizeof __le64 */ | |
191 | data[0] = ptr; | |
192 | ||
193 | rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID, | |
194 | COMPOUND_FID, current->tgid, | |
195 | FILE_END_OF_FILE_INFORMATION, | |
196 | SMB2_O_INFO_FILE, 0, data, size); | |
88a92c91 RS |
197 | if (rc) |
198 | goto finished; | |
e77fe73c | 199 | smb2_set_next_command(tcon, &rqst[num_rqst]); |
f7bfe04b | 200 | smb2_set_related(&rqst[num_rqst++]); |
8191576a | 201 | trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path); |
f7bfe04b | 202 | break; |
dcbf9103 RS |
203 | case SMB2_OP_SET_INFO: |
204 | memset(&si_iov, 0, sizeof(si_iov)); | |
205 | rqst[num_rqst].rq_iov = si_iov; | |
206 | rqst[num_rqst].rq_nvec = 1; | |
207 | ||
bb435512 | 208 | |
dcbf9103 RS |
209 | size[0] = sizeof(FILE_BASIC_INFO); |
210 | data[0] = ptr; | |
211 | ||
dc9300a6 RS |
212 | if (cfile) |
213 | rc = SMB2_set_info_init(tcon, &rqst[num_rqst], | |
214 | cfile->fid.persistent_fid, | |
215 | cfile->fid.volatile_fid, current->tgid, | |
216 | FILE_BASIC_INFORMATION, | |
217 | SMB2_O_INFO_FILE, 0, data, size); | |
218 | else { | |
219 | rc = SMB2_set_info_init(tcon, &rqst[num_rqst], | |
220 | COMPOUND_FID, | |
221 | COMPOUND_FID, current->tgid, | |
222 | FILE_BASIC_INFORMATION, | |
223 | SMB2_O_INFO_FILE, 0, data, size); | |
224 | if (!rc) { | |
225 | smb2_set_next_command(tcon, &rqst[num_rqst]); | |
226 | smb2_set_related(&rqst[num_rqst]); | |
227 | } | |
228 | } | |
229 | ||
88a92c91 RS |
230 | if (rc) |
231 | goto finished; | |
dc9300a6 | 232 | num_rqst++; |
8191576a SF |
233 | trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid, |
234 | full_path); | |
dcbf9103 | 235 | break; |
bb435512 RS |
236 | case SMB2_OP_RENAME: |
237 | memset(&si_iov, 0, sizeof(si_iov)); | |
238 | rqst[num_rqst].rq_iov = si_iov; | |
239 | rqst[num_rqst].rq_nvec = 2; | |
240 | ||
241 | len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX)); | |
242 | ||
243 | rename_info.ReplaceIfExists = 1; | |
244 | rename_info.RootDirectory = 0; | |
245 | rename_info.FileNameLength = cpu_to_le32(len); | |
246 | ||
247 | size[0] = sizeof(struct smb2_file_rename_info); | |
248 | data[0] = &rename_info; | |
249 | ||
250 | size[1] = len + 2 /* null */; | |
251 | data[1] = (__le16 *)ptr; | |
252 | ||
8de9e86c RS |
253 | if (cfile) |
254 | rc = SMB2_set_info_init(tcon, &rqst[num_rqst], | |
255 | cfile->fid.persistent_fid, | |
256 | cfile->fid.volatile_fid, | |
257 | current->tgid, FILE_RENAME_INFORMATION, | |
258 | SMB2_O_INFO_FILE, 0, data, size); | |
259 | else { | |
260 | rc = SMB2_set_info_init(tcon, &rqst[num_rqst], | |
261 | COMPOUND_FID, COMPOUND_FID, | |
262 | current->tgid, FILE_RENAME_INFORMATION, | |
bb435512 | 263 | SMB2_O_INFO_FILE, 0, data, size); |
dc9300a6 RS |
264 | if (!rc) { |
265 | smb2_set_next_command(tcon, &rqst[num_rqst]); | |
266 | smb2_set_related(&rqst[num_rqst]); | |
267 | } | |
8de9e86c | 268 | } |
88a92c91 RS |
269 | if (rc) |
270 | goto finished; | |
8de9e86c | 271 | num_rqst++; |
8191576a | 272 | trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path); |
bb435512 RS |
273 | break; |
274 | case SMB2_OP_HARDLINK: | |
275 | memset(&si_iov, 0, sizeof(si_iov)); | |
276 | rqst[num_rqst].rq_iov = si_iov; | |
277 | rqst[num_rqst].rq_nvec = 2; | |
278 | ||
279 | len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX)); | |
280 | ||
281 | link_info.ReplaceIfExists = 0; | |
282 | link_info.RootDirectory = 0; | |
283 | link_info.FileNameLength = cpu_to_le32(len); | |
284 | ||
285 | size[0] = sizeof(struct smb2_file_link_info); | |
286 | data[0] = &link_info; | |
287 | ||
288 | size[1] = len + 2 /* null */; | |
289 | data[1] = (__le16 *)ptr; | |
290 | ||
291 | rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID, | |
292 | COMPOUND_FID, current->tgid, | |
293 | FILE_LINK_INFORMATION, | |
294 | SMB2_O_INFO_FILE, 0, data, size); | |
88a92c91 RS |
295 | if (rc) |
296 | goto finished; | |
e77fe73c | 297 | smb2_set_next_command(tcon, &rqst[num_rqst]); |
bb435512 | 298 | smb2_set_related(&rqst[num_rqst++]); |
8191576a | 299 | trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path); |
bb435512 | 300 | break; |
c5a5f38f RS |
301 | default: |
302 | cifs_dbg(VFS, "Invalid command\n"); | |
303 | rc = -EINVAL; | |
304 | } | |
305 | if (rc) | |
306 | goto finished; | |
307 | ||
8de9e86c RS |
308 | /* We already have a handle so we can skip the close */ |
309 | if (cfile) | |
310 | goto after_close; | |
c5a5f38f RS |
311 | /* Close */ |
312 | memset(&close_iov, 0, sizeof(close_iov)); | |
313 | rqst[num_rqst].rq_iov = close_iov; | |
314 | rqst[num_rqst].rq_nvec = 1; | |
315 | rc = SMB2_close_init(tcon, &rqst[num_rqst], COMPOUND_FID, | |
316 | COMPOUND_FID); | |
8de9e86c | 317 | smb2_set_related(&rqst[num_rqst]); |
c5a5f38f RS |
318 | if (rc) |
319 | goto finished; | |
8de9e86c RS |
320 | after_close: |
321 | num_rqst++; | |
322 | ||
323 | if (cfile) { | |
324 | cifsFileInfo_put(cfile); | |
325 | cfile = NULL; | |
326 | rc = compound_send_recv(xid, ses, flags, num_rqst - 2, | |
327 | &rqst[1], &resp_buftype[1], | |
328 | &rsp_iov[1]); | |
329 | } else | |
330 | rc = compound_send_recv(xid, ses, flags, num_rqst, | |
331 | rqst, resp_buftype, | |
332 | rsp_iov); | |
c5a5f38f RS |
333 | |
334 | finished: | |
8de9e86c RS |
335 | if (cfile) |
336 | cifsFileInfo_put(cfile); | |
337 | ||
c5a5f38f | 338 | SMB2_open_free(&rqst[0]); |
7dcc82c2 SF |
339 | if (rc == -EREMCHG) { |
340 | printk_once(KERN_WARNING "server share %s deleted\n", | |
341 | tcon->treeName); | |
342 | tcon->need_reconnect = true; | |
343 | } | |
344 | ||
c5a5f38f RS |
345 | switch (command) { |
346 | case SMB2_OP_QUERY_INFO: | |
347 | if (rc == 0) { | |
c2e0fe3f RS |
348 | qi_rsp = (struct smb2_query_info_rsp *) |
349 | rsp_iov[1].iov_base; | |
c5a5f38f | 350 | rc = smb2_validate_and_copy_iov( |
c2e0fe3f RS |
351 | le16_to_cpu(qi_rsp->OutputBufferOffset), |
352 | le32_to_cpu(qi_rsp->OutputBufferLength), | |
c5a5f38f | 353 | &rsp_iov[1], sizeof(struct smb2_file_all_info), |
c2e0fe3f | 354 | ptr); |
c5a5f38f RS |
355 | } |
356 | if (rqst[1].rq_iov) | |
357 | SMB2_query_info_free(&rqst[1]); | |
358 | if (rqst[2].rq_iov) | |
359 | SMB2_close_free(&rqst[2]); | |
8191576a SF |
360 | if (rc) |
361 | trace_smb3_query_info_compound_err(xid, ses->Suid, | |
362 | tcon->tid, rc); | |
363 | else | |
364 | trace_smb3_query_info_compound_done(xid, ses->Suid, | |
365 | tcon->tid); | |
c5a5f38f | 366 | break; |
47dd9597 | 367 | case SMB2_OP_DELETE: |
8191576a SF |
368 | if (rc) |
369 | trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc); | |
370 | else | |
371 | trace_smb3_delete_done(xid, ses->Suid, tcon->tid); | |
372 | if (rqst[1].rq_iov) | |
373 | SMB2_close_free(&rqst[1]); | |
374 | break; | |
f733e393 | 375 | case SMB2_OP_MKDIR: |
8191576a SF |
376 | if (rc) |
377 | trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc); | |
378 | else | |
379 | trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid); | |
f733e393 RS |
380 | if (rqst[1].rq_iov) |
381 | SMB2_close_free(&rqst[1]); | |
382 | break; | |
bb435512 | 383 | case SMB2_OP_HARDLINK: |
8191576a SF |
384 | if (rc) |
385 | trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc); | |
386 | else | |
387 | trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid); | |
388 | free_set_inf_compound(rqst); | |
389 | break; | |
bb435512 | 390 | case SMB2_OP_RENAME: |
8191576a SF |
391 | if (rc) |
392 | trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc); | |
393 | else | |
394 | trace_smb3_rename_done(xid, ses->Suid, tcon->tid); | |
395 | free_set_inf_compound(rqst); | |
396 | break; | |
c2e0fe3f | 397 | case SMB2_OP_RMDIR: |
8191576a SF |
398 | if (rc) |
399 | trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc); | |
400 | else | |
401 | trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid); | |
402 | free_set_inf_compound(rqst); | |
403 | break; | |
dcbf9103 | 404 | case SMB2_OP_SET_EOF: |
8191576a SF |
405 | if (rc) |
406 | trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc); | |
407 | else | |
408 | trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid); | |
409 | free_set_inf_compound(rqst); | |
410 | break; | |
dcbf9103 | 411 | case SMB2_OP_SET_INFO: |
8191576a SF |
412 | if (rc) |
413 | trace_smb3_set_info_compound_err(xid, ses->Suid, | |
414 | tcon->tid, rc); | |
415 | else | |
416 | trace_smb3_set_info_compound_done(xid, ses->Suid, | |
417 | tcon->tid); | |
418 | free_set_inf_compound(rqst); | |
c2e0fe3f | 419 | break; |
c5a5f38f RS |
420 | } |
421 | free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base); | |
422 | free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base); | |
423 | free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base); | |
424 | return rc; | |
425 | } | |
426 | ||
f0df737e | 427 | void |
be4cb9e3 PS |
428 | move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src) |
429 | { | |
430 | memcpy(dst, src, (size_t)(&src->CurrentByteOffset) - (size_t)src); | |
431 | dst->CurrentByteOffset = src->CurrentByteOffset; | |
432 | dst->Mode = src->Mode; | |
433 | dst->AlignmentRequirement = src->AlignmentRequirement; | |
434 | dst->IndexNumber1 = 0; /* we don't use it */ | |
435 | } | |
436 | ||
437 | int | |
438 | smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, | |
439 | struct cifs_sb_info *cifs_sb, const char *full_path, | |
eb85d94b | 440 | FILE_ALL_INFO *data, bool *adjust_tz, bool *symlink) |
be4cb9e3 PS |
441 | { |
442 | int rc; | |
443 | struct smb2_file_all_info *smb2_data; | |
61351d6d | 444 | __u32 create_options = 0; |
6a9cbdd1 PS |
445 | struct cifs_fid fid; |
446 | bool no_cached_open = tcon->nohandlecache; | |
496902dc | 447 | struct cifsFileInfo *cfile; |
be4cb9e3 PS |
448 | |
449 | *adjust_tz = false; | |
eb85d94b | 450 | *symlink = false; |
be4cb9e3 | 451 | |
1bbe4997 | 452 | smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2, |
be4cb9e3 PS |
453 | GFP_KERNEL); |
454 | if (smb2_data == NULL) | |
455 | return -ENOMEM; | |
6a9cbdd1 PS |
456 | |
457 | /* If it is a root and its handle is cached then use it */ | |
458 | if (!strlen(full_path) && !no_cached_open) { | |
459 | rc = open_shroot(xid, tcon, &fid); | |
460 | if (rc) | |
461 | goto out; | |
b0f6df73 RS |
462 | |
463 | if (tcon->crfid.file_all_info_is_valid) { | |
464 | move_smb2_info_to_cifs(data, | |
465 | &tcon->crfid.file_all_info); | |
466 | } else { | |
467 | rc = SMB2_query_info(xid, tcon, fid.persistent_fid, | |
468 | fid.volatile_fid, smb2_data); | |
469 | if (!rc) | |
470 | move_smb2_info_to_cifs(data, smb2_data); | |
471 | } | |
6a9cbdd1 | 472 | close_shroot(&tcon->crfid); |
6a9cbdd1 PS |
473 | goto out; |
474 | } | |
475 | ||
61351d6d SF |
476 | if (backup_cred(cifs_sb)) |
477 | create_options |= CREATE_OPEN_BACKUP_INTENT; | |
be4cb9e3 | 478 | |
496902dc | 479 | cifs_get_readable_path(tcon, full_path, &cfile); |
c5a5f38f | 480 | rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, |
61351d6d | 481 | FILE_READ_ATTRIBUTES, FILE_OPEN, create_options, |
c3ca78e2 | 482 | ACL_NO_MODE, smb2_data, SMB2_OP_QUERY_INFO, cfile); |
eb85d94b PS |
483 | if (rc == -EOPNOTSUPP) { |
484 | *symlink = true; | |
61351d6d SF |
485 | create_options |= OPEN_REPARSE_POINT; |
486 | ||
eb85d94b | 487 | /* Failed on a symbolic link - query a reparse point info */ |
c5a5f38f RS |
488 | rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, |
489 | FILE_READ_ATTRIBUTES, FILE_OPEN, | |
c3ca78e2 SF |
490 | create_options, ACL_NO_MODE, |
491 | smb2_data, SMB2_OP_QUERY_INFO, NULL); | |
eb85d94b | 492 | } |
be4cb9e3 PS |
493 | if (rc) |
494 | goto out; | |
495 | ||
496 | move_smb2_info_to_cifs(data, smb2_data); | |
497 | out: | |
498 | kfree(smb2_data); | |
499 | return rc; | |
500 | } | |
a0e73183 PS |
501 | |
502 | int | |
c3ca78e2 SF |
503 | smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode, |
504 | struct cifs_tcon *tcon, const char *name, | |
a0e73183 PS |
505 | struct cifs_sb_info *cifs_sb) |
506 | { | |
f733e393 RS |
507 | return smb2_compound_op(xid, tcon, cifs_sb, name, |
508 | FILE_WRITE_ATTRIBUTES, FILE_CREATE, | |
c3ca78e2 SF |
509 | CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR, |
510 | NULL); | |
a0e73183 PS |
511 | } |
512 | ||
513 | void | |
514 | smb2_mkdir_setinfo(struct inode *inode, const char *name, | |
515 | struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon, | |
516 | const unsigned int xid) | |
517 | { | |
518 | FILE_BASIC_INFO data; | |
519 | struct cifsInodeInfo *cifs_i; | |
dc9300a6 | 520 | struct cifsFileInfo *cfile; |
a0e73183 PS |
521 | u32 dosattrs; |
522 | int tmprc; | |
523 | ||
524 | memset(&data, 0, sizeof(data)); | |
525 | cifs_i = CIFS_I(inode); | |
526 | dosattrs = cifs_i->cifsAttrs | ATTR_READONLY; | |
527 | data.Attributes = cpu_to_le32(dosattrs); | |
dc9300a6 | 528 | cifs_get_writable_path(tcon, name, &cfile); |
dcbf9103 RS |
529 | tmprc = smb2_compound_op(xid, tcon, cifs_sb, name, |
530 | FILE_WRITE_ATTRIBUTES, FILE_CREATE, | |
c3ca78e2 SF |
531 | CREATE_NOT_FILE, ACL_NO_MODE, |
532 | &data, SMB2_OP_SET_INFO, cfile); | |
a0e73183 PS |
533 | if (tmprc == 0) |
534 | cifs_i->cifsAttrs = dosattrs; | |
535 | } | |
1a500f01 PS |
536 | |
537 | int | |
538 | smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name, | |
539 | struct cifs_sb_info *cifs_sb) | |
540 | { | |
c2e0fe3f | 541 | return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN, |
c3ca78e2 | 542 | CREATE_NOT_FILE, ACL_NO_MODE, |
8de9e86c | 543 | NULL, SMB2_OP_RMDIR, NULL); |
1a500f01 | 544 | } |
cbe6f439 PS |
545 | |
546 | int | |
547 | smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name, | |
548 | struct cifs_sb_info *cifs_sb) | |
549 | { | |
47dd9597 RS |
550 | return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN, |
551 | CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT, | |
c3ca78e2 | 552 | ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL); |
cbe6f439 | 553 | } |
35143eb5 | 554 | |
568798cc PS |
555 | static int |
556 | smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon, | |
557 | const char *from_name, const char *to_name, | |
8de9e86c RS |
558 | struct cifs_sb_info *cifs_sb, __u32 access, int command, |
559 | struct cifsFileInfo *cfile) | |
35143eb5 PS |
560 | { |
561 | __le16 *smb2_to_name = NULL; | |
562 | int rc; | |
563 | ||
564 | smb2_to_name = cifs_convert_path_to_utf16(to_name, cifs_sb); | |
565 | if (smb2_to_name == NULL) { | |
566 | rc = -ENOMEM; | |
567 | goto smb2_rename_path; | |
568 | } | |
bb435512 | 569 | rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access, |
c3ca78e2 SF |
570 | FILE_OPEN, 0, ACL_NO_MODE, smb2_to_name, |
571 | command, cfile); | |
35143eb5 PS |
572 | smb2_rename_path: |
573 | kfree(smb2_to_name); | |
574 | return rc; | |
575 | } | |
568798cc PS |
576 | |
577 | int | |
578 | smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon, | |
579 | const char *from_name, const char *to_name, | |
580 | struct cifs_sb_info *cifs_sb) | |
581 | { | |
8de9e86c RS |
582 | struct cifsFileInfo *cfile; |
583 | ||
584 | cifs_get_writable_path(tcon, from_name, &cfile); | |
585 | ||
586 | return smb2_set_path_attr(xid, tcon, from_name, to_name, | |
587 | cifs_sb, DELETE, SMB2_OP_RENAME, cfile); | |
568798cc PS |
588 | } |
589 | ||
590 | int | |
591 | smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon, | |
592 | const char *from_name, const char *to_name, | |
593 | struct cifs_sb_info *cifs_sb) | |
594 | { | |
595 | return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb, | |
8de9e86c RS |
596 | FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK, |
597 | NULL); | |
568798cc | 598 | } |
c839ff24 PS |
599 | |
600 | int | |
601 | smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon, | |
602 | const char *full_path, __u64 size, | |
603 | struct cifs_sb_info *cifs_sb, bool set_alloc) | |
604 | { | |
605 | __le64 eof = cpu_to_le64(size); | |
f7bfe04b RS |
606 | |
607 | return smb2_compound_op(xid, tcon, cifs_sb, full_path, | |
c3ca78e2 SF |
608 | FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE, |
609 | &eof, SMB2_OP_SET_EOF, NULL); | |
c839ff24 | 610 | } |
1feeaac7 PS |
611 | |
612 | int | |
613 | smb2_set_file_info(struct inode *inode, const char *full_path, | |
614 | FILE_BASIC_INFO *buf, const unsigned int xid) | |
615 | { | |
616 | struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); | |
617 | struct tcon_link *tlink; | |
618 | int rc; | |
619 | ||
18dd8e1a | 620 | if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) && |
fd09b7d3 | 621 | (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) && |
18dd8e1a SF |
622 | (buf->Attributes == 0)) |
623 | return 0; /* would be a no op, no sense sending this */ | |
624 | ||
1feeaac7 PS |
625 | tlink = cifs_sb_tlink(cifs_sb); |
626 | if (IS_ERR(tlink)) | |
627 | return PTR_ERR(tlink); | |
18dd8e1a | 628 | |
dcbf9103 | 629 | rc = smb2_compound_op(xid, tlink_tcon(tlink), cifs_sb, full_path, |
c3ca78e2 SF |
630 | FILE_WRITE_ATTRIBUTES, FILE_OPEN, |
631 | 0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, NULL); | |
1feeaac7 PS |
632 | cifs_put_tlink(tlink); |
633 | return rc; | |
634 | } |