4 * Copyright (C) International Business Machines Corp., 2002, 2011
6 * Author(s): Pavel Shilovsky (pshilovsky@samba.org),
7 * Steve French (sfrench@us.ibm.com)
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.
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.
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
24 #include <linux/stat.h>
25 #include <linux/slab.h>
26 #include <linux/pagemap.h>
27 #include <asm/div64.h>
31 #include "cifsproto.h"
32 #include "cifs_debug.h"
33 #include "cifs_fs_sb.h"
34 #include "cifs_unicode.h"
38 #include "smb2proto.h"
41 free_set_inf_compound(struct smb_rqst *rqst)
44 SMB2_set_info_free(&rqst[1]);
46 SMB2_close_free(&rqst[2]);
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,
54 __u32 create_options, umode_t mode, void *ptr, int command,
55 struct cifsFileInfo *cfile)
58 __le16 *utf16_path = NULL;
59 __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
60 struct cifs_open_parms oparms;
62 struct cifs_ses *ses = tcon->ses;
64 struct smb_rqst rqst[3];
66 struct kvec rsp_iov[3];
67 struct kvec open_iov[SMB2_CREATE_IOV_SIZE];
68 struct kvec qi_iov[1];
69 struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE];
70 struct kvec close_iov[1];
71 struct smb2_query_info_rsp *qi_rsp = NULL;
73 __u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0};
76 struct smb2_file_rename_info rename_info;
77 struct smb2_file_link_info link_info;
80 if (smb3_encryption_required(tcon))
81 flags |= CIFS_TRANSFORM_REQ;
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));
87 /* We already have a handle so we can skip the open */
92 utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
98 memset(&oparms, 0, sizeof(struct cifs_open_parms));
100 oparms.desired_access = desired_access;
101 oparms.disposition = create_disposition;
102 oparms.create_options = cifs_create_options(cifs_sb, create_options);
104 oparms.reconnect = false;
107 memset(&open_iov, 0, sizeof(open_iov));
108 rqst[num_rqst].rq_iov = open_iov;
109 rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE;
110 rc = SMB2_open_init(tcon, &rqst[num_rqst], &oplock, &oparms,
116 smb2_set_next_command(tcon, &rqst[num_rqst]);
123 case SMB2_OP_QUERY_INFO:
124 memset(&qi_iov, 0, sizeof(qi_iov));
125 rqst[num_rqst].rq_iov = qi_iov;
126 rqst[num_rqst].rq_nvec = 1;
129 rc = SMB2_query_info_init(tcon, &rqst[num_rqst],
130 cfile->fid.persistent_fid,
131 cfile->fid.volatile_fid,
132 FILE_ALL_INFORMATION,
134 sizeof(struct smb2_file_all_info) +
135 PATH_MAX * 2, 0, NULL);
137 rc = SMB2_query_info_init(tcon, &rqst[num_rqst],
140 FILE_ALL_INFORMATION,
142 sizeof(struct smb2_file_all_info) +
143 PATH_MAX * 2, 0, NULL);
145 smb2_set_next_command(tcon, &rqst[num_rqst]);
146 smb2_set_related(&rqst[num_rqst]);
153 trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid,
157 trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path);
161 * Directories are created through parameters in the
164 trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path);
167 memset(&si_iov, 0, sizeof(si_iov));
168 rqst[num_rqst].rq_iov = si_iov;
169 rqst[num_rqst].rq_nvec = 1;
171 size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
172 data[0] = &delete_pending[0];
174 rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
175 COMPOUND_FID, current->tgid,
176 FILE_DISPOSITION_INFORMATION,
177 SMB2_O_INFO_FILE, 0, data, size);
180 smb2_set_next_command(tcon, &rqst[num_rqst]);
181 smb2_set_related(&rqst[num_rqst++]);
182 trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
184 case SMB2_OP_SET_EOF:
185 memset(&si_iov, 0, sizeof(si_iov));
186 rqst[num_rqst].rq_iov = si_iov;
187 rqst[num_rqst].rq_nvec = 1;
189 size[0] = 8; /* sizeof __le64 */
192 rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
193 COMPOUND_FID, current->tgid,
194 FILE_END_OF_FILE_INFORMATION,
195 SMB2_O_INFO_FILE, 0, data, size);
198 smb2_set_next_command(tcon, &rqst[num_rqst]);
199 smb2_set_related(&rqst[num_rqst++]);
200 trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
202 case SMB2_OP_SET_INFO:
203 memset(&si_iov, 0, sizeof(si_iov));
204 rqst[num_rqst].rq_iov = si_iov;
205 rqst[num_rqst].rq_nvec = 1;
208 size[0] = sizeof(FILE_BASIC_INFO);
212 rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
213 cfile->fid.persistent_fid,
214 cfile->fid.volatile_fid, current->tgid,
215 FILE_BASIC_INFORMATION,
216 SMB2_O_INFO_FILE, 0, data, size);
218 rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
220 COMPOUND_FID, current->tgid,
221 FILE_BASIC_INFORMATION,
222 SMB2_O_INFO_FILE, 0, data, size);
224 smb2_set_next_command(tcon, &rqst[num_rqst]);
225 smb2_set_related(&rqst[num_rqst]);
232 trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid,
236 memset(&si_iov, 0, sizeof(si_iov));
237 rqst[num_rqst].rq_iov = si_iov;
238 rqst[num_rqst].rq_nvec = 2;
240 len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
242 rename_info.ReplaceIfExists = 1;
243 rename_info.RootDirectory = 0;
244 rename_info.FileNameLength = cpu_to_le32(len);
246 size[0] = sizeof(struct smb2_file_rename_info);
247 data[0] = &rename_info;
249 size[1] = len + 2 /* null */;
250 data[1] = (__le16 *)ptr;
253 rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
254 cfile->fid.persistent_fid,
255 cfile->fid.volatile_fid,
256 current->tgid, FILE_RENAME_INFORMATION,
257 SMB2_O_INFO_FILE, 0, data, size);
259 rc = SMB2_set_info_init(tcon, &rqst[num_rqst],
260 COMPOUND_FID, COMPOUND_FID,
261 current->tgid, FILE_RENAME_INFORMATION,
262 SMB2_O_INFO_FILE, 0, data, size);
264 smb2_set_next_command(tcon, &rqst[num_rqst]);
265 smb2_set_related(&rqst[num_rqst]);
271 trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
273 case SMB2_OP_HARDLINK:
274 memset(&si_iov, 0, sizeof(si_iov));
275 rqst[num_rqst].rq_iov = si_iov;
276 rqst[num_rqst].rq_nvec = 2;
278 len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
280 link_info.ReplaceIfExists = 0;
281 link_info.RootDirectory = 0;
282 link_info.FileNameLength = cpu_to_le32(len);
284 size[0] = sizeof(struct smb2_file_link_info);
285 data[0] = &link_info;
287 size[1] = len + 2 /* null */;
288 data[1] = (__le16 *)ptr;
290 rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
291 COMPOUND_FID, current->tgid,
292 FILE_LINK_INFORMATION,
293 SMB2_O_INFO_FILE, 0, data, size);
296 smb2_set_next_command(tcon, &rqst[num_rqst]);
297 smb2_set_related(&rqst[num_rqst++]);
298 trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
301 cifs_dbg(VFS, "Invalid command\n");
307 /* We already have a handle so we can skip the close */
311 memset(&close_iov, 0, sizeof(close_iov));
312 rqst[num_rqst].rq_iov = close_iov;
313 rqst[num_rqst].rq_nvec = 1;
314 rc = SMB2_close_init(tcon, &rqst[num_rqst], COMPOUND_FID,
315 COMPOUND_FID, false);
316 smb2_set_related(&rqst[num_rqst]);
323 cifsFileInfo_put(cfile);
325 rc = compound_send_recv(xid, ses, flags, num_rqst - 2,
326 &rqst[1], &resp_buftype[1],
329 rc = compound_send_recv(xid, ses, flags, num_rqst,
335 cifsFileInfo_put(cfile);
337 SMB2_open_free(&rqst[0]);
338 if (rc == -EREMCHG) {
339 printk_once(KERN_WARNING "server share %s deleted\n",
341 tcon->need_reconnect = true;
345 case SMB2_OP_QUERY_INFO:
347 qi_rsp = (struct smb2_query_info_rsp *)
349 rc = smb2_validate_and_copy_iov(
350 le16_to_cpu(qi_rsp->OutputBufferOffset),
351 le32_to_cpu(qi_rsp->OutputBufferLength),
352 &rsp_iov[1], sizeof(struct smb2_file_all_info),
356 SMB2_query_info_free(&rqst[1]);
358 SMB2_close_free(&rqst[2]);
360 trace_smb3_query_info_compound_err(xid, ses->Suid,
363 trace_smb3_query_info_compound_done(xid, ses->Suid,
368 trace_smb3_delete_err(xid, ses->Suid, tcon->tid, rc);
370 trace_smb3_delete_done(xid, ses->Suid, tcon->tid);
372 SMB2_close_free(&rqst[1]);
376 trace_smb3_mkdir_err(xid, ses->Suid, tcon->tid, rc);
378 trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid);
380 SMB2_close_free(&rqst[1]);
382 case SMB2_OP_HARDLINK:
384 trace_smb3_hardlink_err(xid, ses->Suid, tcon->tid, rc);
386 trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid);
387 free_set_inf_compound(rqst);
391 trace_smb3_rename_err(xid, ses->Suid, tcon->tid, rc);
393 trace_smb3_rename_done(xid, ses->Suid, tcon->tid);
394 free_set_inf_compound(rqst);
398 trace_smb3_rmdir_err(xid, ses->Suid, tcon->tid, rc);
400 trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid);
401 free_set_inf_compound(rqst);
403 case SMB2_OP_SET_EOF:
405 trace_smb3_set_eof_err(xid, ses->Suid, tcon->tid, rc);
407 trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid);
408 free_set_inf_compound(rqst);
410 case SMB2_OP_SET_INFO:
412 trace_smb3_set_info_compound_err(xid, ses->Suid,
415 trace_smb3_set_info_compound_done(xid, ses->Suid,
417 free_set_inf_compound(rqst);
420 free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
421 free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
422 free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
427 move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src)
429 memcpy(dst, src, (size_t)(&src->CurrentByteOffset) - (size_t)src);
430 dst->CurrentByteOffset = src->CurrentByteOffset;
431 dst->Mode = src->Mode;
432 dst->AlignmentRequirement = src->AlignmentRequirement;
433 dst->IndexNumber1 = 0; /* we don't use it */
437 smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
438 struct cifs_sb_info *cifs_sb, const char *full_path,
439 FILE_ALL_INFO *data, bool *adjust_tz, bool *symlink)
442 struct smb2_file_all_info *smb2_data;
443 __u32 create_options = 0;
445 bool no_cached_open = tcon->nohandlecache;
446 struct cifsFileInfo *cfile;
451 smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
453 if (smb2_data == NULL)
456 /* If it is a root and its handle is cached then use it */
457 if (!strlen(full_path) && !no_cached_open) {
458 rc = open_shroot(xid, tcon, cifs_sb, &fid);
462 if (tcon->crfid.file_all_info_is_valid) {
463 move_smb2_info_to_cifs(data,
464 &tcon->crfid.file_all_info);
466 rc = SMB2_query_info(xid, tcon, fid.persistent_fid,
467 fid.volatile_fid, smb2_data);
469 move_smb2_info_to_cifs(data, smb2_data);
471 close_shroot(&tcon->crfid);
475 cifs_get_readable_path(tcon, full_path, &cfile);
476 rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
477 FILE_READ_ATTRIBUTES, FILE_OPEN, create_options,
478 ACL_NO_MODE, smb2_data, SMB2_OP_QUERY_INFO, cfile);
479 if (rc == -EOPNOTSUPP) {
481 create_options |= OPEN_REPARSE_POINT;
483 /* Failed on a symbolic link - query a reparse point info */
484 rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
485 FILE_READ_ATTRIBUTES, FILE_OPEN,
486 create_options, ACL_NO_MODE,
487 smb2_data, SMB2_OP_QUERY_INFO, NULL);
492 move_smb2_info_to_cifs(data, smb2_data);
499 smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode,
500 struct cifs_tcon *tcon, const char *name,
501 struct cifs_sb_info *cifs_sb)
503 return smb2_compound_op(xid, tcon, cifs_sb, name,
504 FILE_WRITE_ATTRIBUTES, FILE_CREATE,
505 CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR,
510 smb2_mkdir_setinfo(struct inode *inode, const char *name,
511 struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
512 const unsigned int xid)
514 FILE_BASIC_INFO data;
515 struct cifsInodeInfo *cifs_i;
516 struct cifsFileInfo *cfile;
520 memset(&data, 0, sizeof(data));
521 cifs_i = CIFS_I(inode);
522 dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
523 data.Attributes = cpu_to_le32(dosattrs);
524 cifs_get_writable_path(tcon, name, &cfile);
525 tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
526 FILE_WRITE_ATTRIBUTES, FILE_CREATE,
527 CREATE_NOT_FILE, ACL_NO_MODE,
528 &data, SMB2_OP_SET_INFO, cfile);
530 cifs_i->cifsAttrs = dosattrs;
534 smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
535 struct cifs_sb_info *cifs_sb)
537 return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
538 CREATE_NOT_FILE, ACL_NO_MODE,
539 NULL, SMB2_OP_RMDIR, NULL);
543 smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
544 struct cifs_sb_info *cifs_sb)
546 return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
547 CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
548 ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL);
552 smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
553 const char *from_name, const char *to_name,
554 struct cifs_sb_info *cifs_sb, __u32 access, int command,
555 struct cifsFileInfo *cfile)
557 __le16 *smb2_to_name = NULL;
560 smb2_to_name = cifs_convert_path_to_utf16(to_name, cifs_sb);
561 if (smb2_to_name == NULL) {
563 goto smb2_rename_path;
565 rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
566 FILE_OPEN, 0, ACL_NO_MODE, smb2_to_name,
574 smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
575 const char *from_name, const char *to_name,
576 struct cifs_sb_info *cifs_sb)
578 struct cifsFileInfo *cfile;
580 cifs_get_writable_path(tcon, from_name, &cfile);
582 return smb2_set_path_attr(xid, tcon, from_name, to_name,
583 cifs_sb, DELETE, SMB2_OP_RENAME, cfile);
587 smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
588 const char *from_name, const char *to_name,
589 struct cifs_sb_info *cifs_sb)
591 return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
592 FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK,
597 smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
598 const char *full_path, __u64 size,
599 struct cifs_sb_info *cifs_sb, bool set_alloc)
601 __le64 eof = cpu_to_le64(size);
603 return smb2_compound_op(xid, tcon, cifs_sb, full_path,
604 FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE,
605 &eof, SMB2_OP_SET_EOF, NULL);
609 smb2_set_file_info(struct inode *inode, const char *full_path,
610 FILE_BASIC_INFO *buf, const unsigned int xid)
612 struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
613 struct tcon_link *tlink;
616 if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
617 (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) &&
618 (buf->Attributes == 0))
619 return 0; /* would be a no op, no sense sending this */
621 tlink = cifs_sb_tlink(cifs_sb);
623 return PTR_ERR(tlink);
625 rc = smb2_compound_op(xid, tlink_tcon(tlink), cifs_sb, full_path,
626 FILE_WRITE_ATTRIBUTES, FILE_OPEN,
627 0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, NULL);
628 cifs_put_tlink(tlink);