/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- oplock_handler
- cvfs_connect
- cvfs_disconnect
- async_info_destructor
- async_simple
- cvfs_unlink
- async_ioctl
- cvfs_ioctl
- cvfs_chkpath
- async_qpathinfo
- cvfs_qpathinfo
- async_qfileinfo
- cvfs_qfileinfo
- cvfs_setpathinfo
- async_open
- cvfs_open
- cvfs_mkdir
- cvfs_rmdir
- cvfs_rename
- cvfs_copy
- async_read
- cvfs_read
- async_write
- cvfs_write
- async_seek
- cvfs_seek
- cvfs_flush
- cvfs_close
- cvfs_exit
- cvfs_logoff
- cvfs_async_setup
- cvfs_cancel
- cvfs_lock
- cvfs_setfileinfo
- async_fsinfo
- cvfs_fsinfo
- cvfs_lpq
- cvfs_search_first
- cvfs_search_next
- cvfs_search_close
- async_trans2
- cvfs_trans2
- cvfs_trans
- async_changenotify
- cvfs_notify
- ntvfs_cifs_init
1 /*
2 Unix SMB/CIFS implementation.
3
4 CIFS-on-CIFS NTVFS filesystem backend
5
6 Copyright (C) Andrew Tridgell 2003
7 Copyright (C) James J Myers 2003 <myersjj@samba.org>
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program 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 the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22 /*
23 this implements a CIFS->CIFS NTVFS filesystem backend.
24
25 */
26
27 #include "includes.h"
28 #include "libcli/raw/libcliraw.h"
29 #include "libcli/raw/raw_proto.h"
30 #include "libcli/smb_composite/smb_composite.h"
31 #include "auth/auth.h"
32 #include "auth/credentials/credentials.h"
33 #include "ntvfs/ntvfs.h"
34 #include "../lib/util/dlinklist.h"
35 #include "param/param.h"
36 #include "libcli/resolve/resolve.h"
37
38 struct cvfs_file {
39 struct cvfs_file *prev, *next;
40 uint16_t fnum;
41 struct ntvfs_handle *h;
42 };
43
44 /* this is stored in ntvfs_private */
45 struct cvfs_private {
46 struct smbcli_tree *tree;
47 struct smbcli_transport *transport;
48 struct ntvfs_module_context *ntvfs;
49 struct async_info *pending;
50 struct cvfs_file *files;
51 bool map_generic;
52 bool map_trans2;
53 };
54
55
56 /* a structure used to pass information to an async handler */
57 struct async_info {
58 struct async_info *next, *prev;
59 struct cvfs_private *cvfs;
60 struct ntvfs_request *req;
61 struct smbcli_request *c_req;
62 struct cvfs_file *f;
63 void *parms;
64 };
65
66 #define CHECK_UPSTREAM_OPEN do { \
67 if (! p->transport->socket->sock) { \
68 req->async_states->state|=NTVFS_ASYNC_STATE_CLOSE; \
69 return NT_STATUS_CONNECTION_DISCONNECTED; \
70 } \
71 } while(0)
72
73 #define SETUP_PID do { \
74 p->tree->session->pid = req->smbpid; \
75 CHECK_UPSTREAM_OPEN; \
76 } while(0)
77
78 #define SETUP_FILE_HERE(f) do { \
79 f = ntvfs_handle_get_backend_data(io->generic.in.file.ntvfs, ntvfs); \
80 if (!f) return NT_STATUS_INVALID_HANDLE; \
81 io->generic.in.file.fnum = f->fnum; \
82 } while (0)
83
84 #define SETUP_FILE do { \
85 struct cvfs_file *f; \
86 SETUP_FILE_HERE(f); \
87 } while (0)
88
89 #define SETUP_PID_AND_FILE do { \
90 SETUP_PID; \
91 SETUP_FILE; \
92 } while (0)
93
94 #define CIFS_SERVER "cifs:server"
95 #define CIFS_USER "cifs:user"
96 #define CIFS_PASSWORD "cifs:password"
97 #define CIFS_DOMAIN "cifs:domain"
98 #define CIFS_SHARE "cifs:share"
99 #define CIFS_USE_MACHINE_ACCT "cifs:use-machine-account"
100 #define CIFS_MAP_GENERIC "cifs:map-generic"
101 #define CIFS_MAP_TRANS2 "cifs:map-trans2"
102
103 #define CIFS_USE_MACHINE_ACCT_DEFAULT false
104 #define CIFS_MAP_GENERIC_DEFAULT false
105 #define CIFS_MAP_TRANS2_DEFAULT true
106
107 /*
108 a handler for oplock break events from the server - these need to be passed
109 along to the client
110 */
111 static bool oplock_handler(struct smbcli_transport *transport, uint16_t tid, uint16_t fnum, uint8_t level, void *p_private)
/* [<][>][^][v][top][bottom][index][help] */
112 {
113 struct cvfs_private *p = p_private;
114 NTSTATUS status;
115 struct ntvfs_handle *h = NULL;
116 struct cvfs_file *f;
117
118 for (f=p->files; f; f=f->next) {
119 if (f->fnum != fnum) continue;
120 h = f->h;
121 break;
122 }
123
124 if (!h) {
125 DEBUG(5,("vfs_cifs: ignoring oplock break level %d for fnum %d\n", level, fnum));
126 return true;
127 }
128
129 DEBUG(5,("vfs_cifs: sending oplock break level %d for fnum %d\n", level, fnum));
130 status = ntvfs_send_oplock_break(p->ntvfs, h, level);
131 if (!NT_STATUS_IS_OK(status)) return false;
132 return true;
133 }
134
135 /*
136 connect to a share - used when a tree_connect operation comes in.
137 */
138 static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
139 struct ntvfs_request *req, const char *sharename)
140 {
141 NTSTATUS status;
142 struct cvfs_private *p;
143 const char *host, *user, *pass, *domain, *remote_share;
144 struct smb_composite_connect io;
145 struct composite_context *creq;
146 struct share_config *scfg = ntvfs->ctx->config;
147
148 struct cli_credentials *credentials;
149 bool machine_account;
150
151 /* Here we need to determine which server to connect to.
152 * For now we use parametric options, type cifs.
153 * Later we will use security=server and auth_server.c.
154 */
155 host = share_string_option(scfg, CIFS_SERVER, NULL);
156 user = share_string_option(scfg, CIFS_USER, NULL);
157 pass = share_string_option(scfg, CIFS_PASSWORD, NULL);
158 domain = share_string_option(scfg, CIFS_DOMAIN, NULL);
159 remote_share = share_string_option(scfg, CIFS_SHARE, NULL);
160 if (!remote_share) {
161 remote_share = sharename;
162 }
163
164 machine_account = share_bool_option(scfg, CIFS_USE_MACHINE_ACCT, CIFS_USE_MACHINE_ACCT_DEFAULT);
165
166 p = talloc_zero(ntvfs, struct cvfs_private);
167 if (!p) {
168 return NT_STATUS_NO_MEMORY;
169 }
170
171 ntvfs->private_data = p;
172
173 if (!host) {
174 DEBUG(1,("CIFS backend: You must supply server\n"));
175 return NT_STATUS_INVALID_PARAMETER;
176 }
177
178 if (user && pass) {
179 DEBUG(5, ("CIFS backend: Using specified password\n"));
180 credentials = cli_credentials_init(p);
181 if (!credentials) {
182 return NT_STATUS_NO_MEMORY;
183 }
184 cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
185 cli_credentials_set_username(credentials, user, CRED_SPECIFIED);
186 if (domain) {
187 cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
188 }
189 cli_credentials_set_password(credentials, pass, CRED_SPECIFIED);
190 } else if (machine_account) {
191 DEBUG(5, ("CIFS backend: Using machine account\n"));
192 credentials = cli_credentials_init(p);
193 cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
194 if (domain) {
195 cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
196 }
197 status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx);
198 if (!NT_STATUS_IS_OK(status)) {
199 return status;
200 }
201 } else if (req->session_info->credentials) {
202 DEBUG(5, ("CIFS backend: Using delegated credentials\n"));
203 credentials = req->session_info->credentials;
204 } else {
205 DEBUG(1,("CIFS backend: NO delegated credentials found: You must supply server, user and password or the client must supply delegated credentials\n"));
206 return NT_STATUS_INVALID_PARAMETER;
207 }
208
209 /* connect to the server, using the smbd event context */
210 io.in.dest_host = host;
211 io.in.dest_ports = lp_smb_ports(ntvfs->ctx->lp_ctx);
212 io.in.socket_options = lp_socket_options(ntvfs->ctx->lp_ctx);
213 io.in.called_name = host;
214 io.in.credentials = credentials;
215 io.in.fallback_to_anonymous = false;
216 io.in.workgroup = lp_workgroup(ntvfs->ctx->lp_ctx);
217 io.in.service = remote_share;
218 io.in.service_type = "?????";
219 io.in.iconv_convenience = lp_iconv_convenience(ntvfs->ctx->lp_ctx);
220 io.in.gensec_settings = lp_gensec_settings(p, ntvfs->ctx->lp_ctx);
221 lp_smbcli_options(ntvfs->ctx->lp_ctx, &io.in.options);
222 lp_smbcli_session_options(ntvfs->ctx->lp_ctx, &io.in.session_options);
223
224 if (!(ntvfs->ctx->client_caps & NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS)) {
225 io.in.options.use_level2_oplocks = false;
226 }
227
228 creq = smb_composite_connect_send(&io, p,
229 lp_resolve_context(ntvfs->ctx->lp_ctx),
230 ntvfs->ctx->event_ctx);
231 status = smb_composite_connect_recv(creq, p);
232 NT_STATUS_NOT_OK_RETURN(status);
233
234 p->tree = io.out.tree;
235
236 p->transport = p->tree->session->transport;
237 SETUP_PID;
238 p->ntvfs = ntvfs;
239
240 ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
241 NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type);
242 ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:");
243 NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type);
244
245 /* we need to receive oplock break requests from the server */
246 smbcli_oplock_handler(p->transport, oplock_handler, p);
247
248 p->map_generic = share_bool_option(scfg, CIFS_MAP_GENERIC, CIFS_MAP_GENERIC_DEFAULT);
249
250 p->map_trans2 = share_bool_option(scfg, CIFS_MAP_TRANS2, CIFS_MAP_TRANS2_DEFAULT);
251
252 return NT_STATUS_OK;
253 }
254
255 /*
256 disconnect from a share
257 */
258 static NTSTATUS cvfs_disconnect(struct ntvfs_module_context *ntvfs)
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259 {
260 struct cvfs_private *p = ntvfs->private_data;
261 struct async_info *a, *an;
262
263 /* first cleanup pending requests */
264 for (a=p->pending; a; a = an) {
265 an = a->next;
266 smbcli_request_destroy(a->c_req);
267 talloc_free(a);
268 }
269
270 talloc_free(p);
271 ntvfs->private_data = NULL;
272
273 return NT_STATUS_OK;
274 }
275
276 /*
277 destroy an async info structure
278 */
279 static int async_info_destructor(struct async_info *async)
/* [<][>][^][v][top][bottom][index][help] */
280 {
281 DLIST_REMOVE(async->cvfs->pending, async);
282 return 0;
283 }
284
285 /*
286 a handler for simple async replies
287 this handler can only be used for functions that don't return any
288 parameters (those that just return a status code)
289 */
290 static void async_simple(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
291 {
292 struct async_info *async = c_req->async.private_data;
293 struct ntvfs_request *req = async->req;
294 req->async_states->status = smbcli_request_simple_recv(c_req);
295 talloc_free(async);
296 req->async_states->send_fn(req);
297 }
298
299
300 /* save some typing for the simple functions */
301 #define ASYNC_RECV_TAIL_F(io, async_fn, file) do { \
302 if (!c_req) return NT_STATUS_UNSUCCESSFUL; \
303 { \
304 struct async_info *async; \
305 async = talloc(req, struct async_info); \
306 if (!async) return NT_STATUS_NO_MEMORY; \
307 async->parms = io; \
308 async->req = req; \
309 async->f = file; \
310 async->cvfs = p; \
311 async->c_req = c_req; \
312 DLIST_ADD(p->pending, async); \
313 c_req->async.private_data = async; \
314 talloc_set_destructor(async, async_info_destructor); \
315 } \
316 c_req->async.fn = async_fn; \
317 req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC; \
318 return NT_STATUS_OK; \
319 } while (0)
320
321 #define ASYNC_RECV_TAIL(io, async_fn) ASYNC_RECV_TAIL_F(io, async_fn, NULL)
322
323 #define SIMPLE_ASYNC_TAIL ASYNC_RECV_TAIL(NULL, async_simple)
324
325 /*
326 delete a file - the dirtype specifies the file types to include in the search.
327 The name can contain CIFS wildcards, but rarely does (except with OS/2 clients)
328 */
329 static NTSTATUS cvfs_unlink(struct ntvfs_module_context *ntvfs,
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330 struct ntvfs_request *req, union smb_unlink *unl)
331 {
332 struct cvfs_private *p = ntvfs->private_data;
333 struct smbcli_request *c_req;
334
335 SETUP_PID;
336
337 /* see if the front end will allow us to perform this
338 function asynchronously. */
339 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
340 return smb_raw_unlink(p->tree, unl);
341 }
342
343 c_req = smb_raw_unlink_send(p->tree, unl);
344
345 SIMPLE_ASYNC_TAIL;
346 }
347
348 /*
349 a handler for async ioctl replies
350 */
351 static void async_ioctl(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
352 {
353 struct async_info *async = c_req->async.private_data;
354 struct ntvfs_request *req = async->req;
355 req->async_states->status = smb_raw_ioctl_recv(c_req, req, async->parms);
356 talloc_free(async);
357 req->async_states->send_fn(req);
358 }
359
360 /*
361 ioctl interface
362 */
363 static NTSTATUS cvfs_ioctl(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
364 struct ntvfs_request *req, union smb_ioctl *io)
365 {
366 struct cvfs_private *p = ntvfs->private_data;
367 struct smbcli_request *c_req;
368
369 SETUP_PID_AND_FILE;
370
371 /* see if the front end will allow us to perform this
372 function asynchronously. */
373 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
374 return smb_raw_ioctl(p->tree, req, io);
375 }
376
377 c_req = smb_raw_ioctl_send(p->tree, io);
378
379 ASYNC_RECV_TAIL(io, async_ioctl);
380 }
381
382 /*
383 check if a directory exists
384 */
385 static NTSTATUS cvfs_chkpath(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
386 struct ntvfs_request *req, union smb_chkpath *cp)
387 {
388 struct cvfs_private *p = ntvfs->private_data;
389 struct smbcli_request *c_req;
390
391 SETUP_PID;
392
393 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
394 return smb_raw_chkpath(p->tree, cp);
395 }
396
397 c_req = smb_raw_chkpath_send(p->tree, cp);
398
399 SIMPLE_ASYNC_TAIL;
400 }
401
402 /*
403 a handler for async qpathinfo replies
404 */
405 static void async_qpathinfo(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
406 {
407 struct async_info *async = c_req->async.private_data;
408 struct ntvfs_request *req = async->req;
409 req->async_states->status = smb_raw_pathinfo_recv(c_req, req, async->parms);
410 talloc_free(async);
411 req->async_states->send_fn(req);
412 }
413
414 /*
415 return info on a pathname
416 */
417 static NTSTATUS cvfs_qpathinfo(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
418 struct ntvfs_request *req, union smb_fileinfo *info)
419 {
420 struct cvfs_private *p = ntvfs->private_data;
421 struct smbcli_request *c_req;
422
423 SETUP_PID;
424
425 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
426 return smb_raw_pathinfo(p->tree, req, info);
427 }
428
429 c_req = smb_raw_pathinfo_send(p->tree, info);
430
431 ASYNC_RECV_TAIL(info, async_qpathinfo);
432 }
433
434 /*
435 a handler for async qfileinfo replies
436 */
437 static void async_qfileinfo(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
438 {
439 struct async_info *async = c_req->async.private_data;
440 struct ntvfs_request *req = async->req;
441 req->async_states->status = smb_raw_fileinfo_recv(c_req, req, async->parms);
442 talloc_free(async);
443 req->async_states->send_fn(req);
444 }
445
446 /*
447 query info on a open file
448 */
449 static NTSTATUS cvfs_qfileinfo(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
450 struct ntvfs_request *req, union smb_fileinfo *io)
451 {
452 struct cvfs_private *p = ntvfs->private_data;
453 struct smbcli_request *c_req;
454
455 SETUP_PID_AND_FILE;
456
457 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
458 return smb_raw_fileinfo(p->tree, req, io);
459 }
460
461 c_req = smb_raw_fileinfo_send(p->tree, io);
462
463 ASYNC_RECV_TAIL(io, async_qfileinfo);
464 }
465
466
467 /*
468 set info on a pathname
469 */
470 static NTSTATUS cvfs_setpathinfo(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
471 struct ntvfs_request *req, union smb_setfileinfo *st)
472 {
473 struct cvfs_private *p = ntvfs->private_data;
474 struct smbcli_request *c_req;
475
476 SETUP_PID;
477
478 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
479 return smb_raw_setpathinfo(p->tree, st);
480 }
481
482 c_req = smb_raw_setpathinfo_send(p->tree, st);
483
484 SIMPLE_ASYNC_TAIL;
485 }
486
487
488 /*
489 a handler for async open replies
490 */
491 static void async_open(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
492 {
493 struct async_info *async = c_req->async.private_data;
494 struct cvfs_private *cvfs = async->cvfs;
495 struct ntvfs_request *req = async->req;
496 struct cvfs_file *f = async->f;
497 union smb_open *io = async->parms;
498 union smb_handle *file;
499 talloc_free(async);
500 req->async_states->status = smb_raw_open_recv(c_req, req, io);
501 SMB_OPEN_OUT_FILE(io, file);
502 f->fnum = file->fnum;
503 file->ntvfs = NULL;
504 if (!NT_STATUS_IS_OK(req->async_states->status)) goto failed;
505 req->async_states->status = ntvfs_handle_set_backend_data(f->h, cvfs->ntvfs, f);
506 if (!NT_STATUS_IS_OK(req->async_states->status)) goto failed;
507 file->ntvfs = f->h;
508 DLIST_ADD(cvfs->files, f);
509 failed:
510 req->async_states->send_fn(req);
511 }
512
513 /*
514 open a file
515 */
516 static NTSTATUS cvfs_open(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
517 struct ntvfs_request *req, union smb_open *io)
518 {
519 struct cvfs_private *p = ntvfs->private_data;
520 struct smbcli_request *c_req;
521 struct ntvfs_handle *h;
522 struct cvfs_file *f;
523 NTSTATUS status;
524
525 SETUP_PID;
526
527 if (io->generic.level != RAW_OPEN_GENERIC &&
528 p->map_generic) {
529 return ntvfs_map_open(ntvfs, req, io);
530 }
531
532 status = ntvfs_handle_new(ntvfs, req, &h);
533 NT_STATUS_NOT_OK_RETURN(status);
534
535 f = talloc_zero(h, struct cvfs_file);
536 NT_STATUS_HAVE_NO_MEMORY(f);
537 f->h = h;
538
539 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
540 union smb_handle *file;
541
542 status = smb_raw_open(p->tree, req, io);
543 NT_STATUS_NOT_OK_RETURN(status);
544
545 SMB_OPEN_OUT_FILE(io, file);
546 f->fnum = file->fnum;
547 file->ntvfs = NULL;
548 status = ntvfs_handle_set_backend_data(f->h, p->ntvfs, f);
549 NT_STATUS_NOT_OK_RETURN(status);
550 file->ntvfs = f->h;
551 DLIST_ADD(p->files, f);
552
553 return NT_STATUS_OK;
554 }
555
556 c_req = smb_raw_open_send(p->tree, io);
557
558 ASYNC_RECV_TAIL_F(io, async_open, f);
559 }
560
561 /*
562 create a directory
563 */
564 static NTSTATUS cvfs_mkdir(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
565 struct ntvfs_request *req, union smb_mkdir *md)
566 {
567 struct cvfs_private *p = ntvfs->private_data;
568 struct smbcli_request *c_req;
569
570 SETUP_PID;
571
572 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
573 return smb_raw_mkdir(p->tree, md);
574 }
575
576 c_req = smb_raw_mkdir_send(p->tree, md);
577
578 SIMPLE_ASYNC_TAIL;
579 }
580
581 /*
582 remove a directory
583 */
584 static NTSTATUS cvfs_rmdir(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
585 struct ntvfs_request *req, struct smb_rmdir *rd)
586 {
587 struct cvfs_private *p = ntvfs->private_data;
588 struct smbcli_request *c_req;
589
590 SETUP_PID;
591
592 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
593 return smb_raw_rmdir(p->tree, rd);
594 }
595 c_req = smb_raw_rmdir_send(p->tree, rd);
596
597 SIMPLE_ASYNC_TAIL;
598 }
599
600 /*
601 rename a set of files
602 */
603 static NTSTATUS cvfs_rename(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
604 struct ntvfs_request *req, union smb_rename *ren)
605 {
606 struct cvfs_private *p = ntvfs->private_data;
607 struct smbcli_request *c_req;
608
609 SETUP_PID;
610
611 if (ren->nttrans.level == RAW_RENAME_NTTRANS) {
612 struct cvfs_file *f;
613 f = ntvfs_handle_get_backend_data(ren->nttrans.in.file.ntvfs, ntvfs);
614 if (!f) return NT_STATUS_INVALID_HANDLE;
615 ren->nttrans.in.file.fnum = f->fnum;
616 }
617
618 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
619 return smb_raw_rename(p->tree, ren);
620 }
621
622 c_req = smb_raw_rename_send(p->tree, ren);
623
624 SIMPLE_ASYNC_TAIL;
625 }
626
627 /*
628 copy a set of files
629 */
630 static NTSTATUS cvfs_copy(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
631 struct ntvfs_request *req, struct smb_copy *cp)
632 {
633 return NT_STATUS_NOT_SUPPORTED;
634 }
635
636 /*
637 a handler for async read replies
638 */
639 static void async_read(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
640 {
641 struct async_info *async = c_req->async.private_data;
642 struct ntvfs_request *req = async->req;
643 req->async_states->status = smb_raw_read_recv(c_req, async->parms);
644 talloc_free(async);
645 req->async_states->send_fn(req);
646 }
647
648 /*
649 read from a file
650 */
651 static NTSTATUS cvfs_read(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
652 struct ntvfs_request *req, union smb_read *io)
653 {
654 struct cvfs_private *p = ntvfs->private_data;
655 struct smbcli_request *c_req;
656
657 SETUP_PID;
658
659 if (io->generic.level != RAW_READ_GENERIC &&
660 p->map_generic) {
661 return ntvfs_map_read(ntvfs, req, io);
662 }
663
664 SETUP_FILE;
665
666 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
667 return smb_raw_read(p->tree, io);
668 }
669
670 c_req = smb_raw_read_send(p->tree, io);
671
672 ASYNC_RECV_TAIL(io, async_read);
673 }
674
675 /*
676 a handler for async write replies
677 */
678 static void async_write(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
679 {
680 struct async_info *async = c_req->async.private_data;
681 struct ntvfs_request *req = async->req;
682 req->async_states->status = smb_raw_write_recv(c_req, async->parms);
683 talloc_free(async);
684 req->async_states->send_fn(req);
685 }
686
687 /*
688 write to a file
689 */
690 static NTSTATUS cvfs_write(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
691 struct ntvfs_request *req, union smb_write *io)
692 {
693 struct cvfs_private *p = ntvfs->private_data;
694 struct smbcli_request *c_req;
695
696 SETUP_PID;
697
698 if (io->generic.level != RAW_WRITE_GENERIC &&
699 p->map_generic) {
700 return ntvfs_map_write(ntvfs, req, io);
701 }
702 SETUP_FILE;
703
704 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
705 return smb_raw_write(p->tree, io);
706 }
707
708 c_req = smb_raw_write_send(p->tree, io);
709
710 ASYNC_RECV_TAIL(io, async_write);
711 }
712
713 /*
714 a handler for async seek replies
715 */
716 static void async_seek(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
717 {
718 struct async_info *async = c_req->async.private_data;
719 struct ntvfs_request *req = async->req;
720 req->async_states->status = smb_raw_seek_recv(c_req, async->parms);
721 talloc_free(async);
722 req->async_states->send_fn(req);
723 }
724
725 /*
726 seek in a file
727 */
728 static NTSTATUS cvfs_seek(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
729 struct ntvfs_request *req,
730 union smb_seek *io)
731 {
732 struct cvfs_private *p = ntvfs->private_data;
733 struct smbcli_request *c_req;
734
735 SETUP_PID_AND_FILE;
736
737 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
738 return smb_raw_seek(p->tree, io);
739 }
740
741 c_req = smb_raw_seek_send(p->tree, io);
742
743 ASYNC_RECV_TAIL(io, async_seek);
744 }
745
746 /*
747 flush a file
748 */
749 static NTSTATUS cvfs_flush(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
750 struct ntvfs_request *req,
751 union smb_flush *io)
752 {
753 struct cvfs_private *p = ntvfs->private_data;
754 struct smbcli_request *c_req;
755
756 SETUP_PID;
757 switch (io->generic.level) {
758 case RAW_FLUSH_FLUSH:
759 SETUP_FILE;
760 break;
761 case RAW_FLUSH_ALL:
762 io->generic.in.file.fnum = 0xFFFF;
763 break;
764 case RAW_FLUSH_SMB2:
765 return NT_STATUS_INVALID_LEVEL;
766 }
767
768 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
769 return smb_raw_flush(p->tree, io);
770 }
771
772 c_req = smb_raw_flush_send(p->tree, io);
773
774 SIMPLE_ASYNC_TAIL;
775 }
776
777 /*
778 close a file
779 */
780 static NTSTATUS cvfs_close(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
781 struct ntvfs_request *req, union smb_close *io)
782 {
783 struct cvfs_private *p = ntvfs->private_data;
784 struct smbcli_request *c_req;
785 struct cvfs_file *f;
786 union smb_close io2;
787
788 SETUP_PID;
789
790 if (io->generic.level != RAW_CLOSE_GENERIC &&
791 p->map_generic) {
792 return ntvfs_map_close(ntvfs, req, io);
793 }
794
795 if (io->generic.level == RAW_CLOSE_GENERIC) {
796 ZERO_STRUCT(io2);
797 io2.close.level = RAW_CLOSE_CLOSE;
798 io2.close.in.file = io->generic.in.file;
799 io2.close.in.write_time = io->generic.in.write_time;
800 io = &io2;
801 }
802
803 SETUP_FILE_HERE(f);
804 /* Note, we aren't free-ing f, or it's h here. Should we?
805 even if file-close fails, we'll remove it from the list,
806 what else would we do? Maybe we should not remove until
807 after the proxied call completes? */
808 DLIST_REMOVE(p->files, f);
809
810 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
811 return smb_raw_close(p->tree, io);
812 }
813
814 c_req = smb_raw_close_send(p->tree, io);
815
816 SIMPLE_ASYNC_TAIL;
817 }
818
819 /*
820 exit - closing files open by the pid
821 */
822 static NTSTATUS cvfs_exit(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
823 struct ntvfs_request *req)
824 {
825 struct cvfs_private *p = ntvfs->private_data;
826 struct smbcli_request *c_req;
827
828 SETUP_PID;
829
830 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
831 return smb_raw_exit(p->tree->session);
832 }
833
834 c_req = smb_raw_exit_send(p->tree->session);
835
836 SIMPLE_ASYNC_TAIL;
837 }
838
839 /*
840 logoff - closing files open by the user
841 */
842 static NTSTATUS cvfs_logoff(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
843 struct ntvfs_request *req)
844 {
845 /* we can't do this right in the cifs backend .... */
846 return NT_STATUS_OK;
847 }
848
849 /*
850 setup for an async call - nothing to do yet
851 */
852 static NTSTATUS cvfs_async_setup(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
853 struct ntvfs_request *req,
854 void *private_data)
855 {
856 return NT_STATUS_OK;
857 }
858
859 /*
860 cancel an async call
861 */
862 static NTSTATUS cvfs_cancel(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
863 struct ntvfs_request *req)
864 {
865 struct cvfs_private *p = ntvfs->private_data;
866 struct async_info *a;
867
868 /* find the matching request */
869 for (a=p->pending;a;a=a->next) {
870 if (a->req == req) {
871 break;
872 }
873 }
874
875 if (a == NULL) {
876 return NT_STATUS_INVALID_PARAMETER;
877 }
878
879 return smb_raw_ntcancel(a->c_req);
880 }
881
882 /*
883 lock a byte range
884 */
885 static NTSTATUS cvfs_lock(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
886 struct ntvfs_request *req, union smb_lock *io)
887 {
888 struct cvfs_private *p = ntvfs->private_data;
889 struct smbcli_request *c_req;
890
891 SETUP_PID;
892
893 if (io->generic.level != RAW_LOCK_GENERIC &&
894 p->map_generic) {
895 return ntvfs_map_lock(ntvfs, req, io);
896 }
897 SETUP_FILE;
898
899 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
900 return smb_raw_lock(p->tree, io);
901 }
902
903 c_req = smb_raw_lock_send(p->tree, io);
904 SIMPLE_ASYNC_TAIL;
905 }
906
907 /*
908 set info on a open file
909 */
910 static NTSTATUS cvfs_setfileinfo(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
911 struct ntvfs_request *req,
912 union smb_setfileinfo *io)
913 {
914 struct cvfs_private *p = ntvfs->private_data;
915 struct smbcli_request *c_req;
916
917 SETUP_PID_AND_FILE;
918
919 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
920 return smb_raw_setfileinfo(p->tree, io);
921 }
922 c_req = smb_raw_setfileinfo_send(p->tree, io);
923
924 SIMPLE_ASYNC_TAIL;
925 }
926
927
928 /*
929 a handler for async fsinfo replies
930 */
931 static void async_fsinfo(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
932 {
933 struct async_info *async = c_req->async.private_data;
934 struct ntvfs_request *req = async->req;
935 req->async_states->status = smb_raw_fsinfo_recv(c_req, req, async->parms);
936 talloc_free(async);
937 req->async_states->send_fn(req);
938 }
939
940 /*
941 return filesystem space info
942 */
943 static NTSTATUS cvfs_fsinfo(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
944 struct ntvfs_request *req, union smb_fsinfo *fs)
945 {
946 struct cvfs_private *p = ntvfs->private_data;
947 struct smbcli_request *c_req;
948
949 SETUP_PID;
950
951 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
952 return smb_raw_fsinfo(p->tree, req, fs);
953 }
954
955 c_req = smb_raw_fsinfo_send(p->tree, req, fs);
956
957 ASYNC_RECV_TAIL(fs, async_fsinfo);
958 }
959
960 /*
961 return print queue info
962 */
963 static NTSTATUS cvfs_lpq(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
964 struct ntvfs_request *req, union smb_lpq *lpq)
965 {
966 return NT_STATUS_NOT_SUPPORTED;
967 }
968
969 /*
970 list files in a directory matching a wildcard pattern
971 */
972 static NTSTATUS cvfs_search_first(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
973 struct ntvfs_request *req, union smb_search_first *io,
974 void *search_private,
975 bool (*callback)(void *, const union smb_search_data *))
976 {
977 struct cvfs_private *p = ntvfs->private_data;
978
979 SETUP_PID;
980
981 return smb_raw_search_first(p->tree, req, io, search_private, callback);
982 }
983
984 /* continue a search */
985 static NTSTATUS cvfs_search_next(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
986 struct ntvfs_request *req, union smb_search_next *io,
987 void *search_private,
988 bool (*callback)(void *, const union smb_search_data *))
989 {
990 struct cvfs_private *p = ntvfs->private_data;
991
992 SETUP_PID;
993
994 return smb_raw_search_next(p->tree, req, io, search_private, callback);
995 }
996
997 /* close a search */
998 static NTSTATUS cvfs_search_close(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
999 struct ntvfs_request *req, union smb_search_close *io)
1000 {
1001 struct cvfs_private *p = ntvfs->private_data;
1002
1003 SETUP_PID;
1004
1005 return smb_raw_search_close(p->tree, io);
1006 }
1007
1008 /*
1009 a handler for async trans2 replies
1010 */
1011 static void async_trans2(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
1012 {
1013 struct async_info *async = c_req->async.private_data;
1014 struct ntvfs_request *req = async->req;
1015 req->async_states->status = smb_raw_trans2_recv(c_req, req, async->parms);
1016 talloc_free(async);
1017 req->async_states->send_fn(req);
1018 }
1019
1020 /* raw trans2 */
1021 static NTSTATUS cvfs_trans2(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
1022 struct ntvfs_request *req,
1023 struct smb_trans2 *trans2)
1024 {
1025 struct cvfs_private *p = ntvfs->private_data;
1026 struct smbcli_request *c_req;
1027
1028 if (p->map_trans2) {
1029 return NT_STATUS_NOT_IMPLEMENTED;
1030 }
1031
1032 SETUP_PID;
1033
1034 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
1035 return smb_raw_trans2(p->tree, req, trans2);
1036 }
1037
1038 c_req = smb_raw_trans2_send(p->tree, trans2);
1039
1040 ASYNC_RECV_TAIL(trans2, async_trans2);
1041 }
1042
1043
1044 /* SMBtrans - not used on file shares */
1045 static NTSTATUS cvfs_trans(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
1046 struct ntvfs_request *req,
1047 struct smb_trans2 *trans2)
1048 {
1049 return NT_STATUS_ACCESS_DENIED;
1050 }
1051
1052 /*
1053 a handler for async change notify replies
1054 */
1055 static void async_changenotify(struct smbcli_request *c_req)
/* [<][>][^][v][top][bottom][index][help] */
1056 {
1057 struct async_info *async = c_req->async.private_data;
1058 struct ntvfs_request *req = async->req;
1059 req->async_states->status = smb_raw_changenotify_recv(c_req, req, async->parms);
1060 talloc_free(async);
1061 req->async_states->send_fn(req);
1062 }
1063
1064 /* change notify request - always async */
1065 static NTSTATUS cvfs_notify(struct ntvfs_module_context *ntvfs,
/* [<][>][^][v][top][bottom][index][help] */
1066 struct ntvfs_request *req,
1067 union smb_notify *io)
1068 {
1069 struct cvfs_private *p = ntvfs->private_data;
1070 struct smbcli_request *c_req;
1071 int saved_timeout = p->transport->options.request_timeout;
1072 struct cvfs_file *f;
1073
1074 if (io->nttrans.level != RAW_NOTIFY_NTTRANS) {
1075 return NT_STATUS_NOT_IMPLEMENTED;
1076 }
1077
1078 SETUP_PID;
1079
1080 f = ntvfs_handle_get_backend_data(io->nttrans.in.file.ntvfs, ntvfs);
1081 if (!f) return NT_STATUS_INVALID_HANDLE;
1082 io->nttrans.in.file.fnum = f->fnum;
1083
1084 /* this request doesn't make sense unless its async */
1085 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
1086 return NT_STATUS_INVALID_PARAMETER;
1087 }
1088
1089 /* we must not timeout on notify requests - they wait
1090 forever */
1091 p->transport->options.request_timeout = 0;
1092
1093 c_req = smb_raw_changenotify_send(p->tree, io);
1094
1095 p->transport->options.request_timeout = saved_timeout;
1096
1097 ASYNC_RECV_TAIL(io, async_changenotify);
1098 }
1099
1100 /*
1101 initialise the CIFS->CIFS backend, registering ourselves with the ntvfs subsystem
1102 */
1103 NTSTATUS ntvfs_cifs_init(void)
/* [<][>][^][v][top][bottom][index][help] */
1104 {
1105 NTSTATUS ret;
1106 struct ntvfs_ops ops;
1107 NTVFS_CURRENT_CRITICAL_SIZES(vers);
1108
1109 ZERO_STRUCT(ops);
1110
1111 /* fill in the name and type */
1112 ops.name = "cifs";
1113 ops.type = NTVFS_DISK;
1114
1115 /* fill in all the operations */
1116 ops.connect = cvfs_connect;
1117 ops.disconnect = cvfs_disconnect;
1118 ops.unlink = cvfs_unlink;
1119 ops.chkpath = cvfs_chkpath;
1120 ops.qpathinfo = cvfs_qpathinfo;
1121 ops.setpathinfo = cvfs_setpathinfo;
1122 ops.open = cvfs_open;
1123 ops.mkdir = cvfs_mkdir;
1124 ops.rmdir = cvfs_rmdir;
1125 ops.rename = cvfs_rename;
1126 ops.copy = cvfs_copy;
1127 ops.ioctl = cvfs_ioctl;
1128 ops.read = cvfs_read;
1129 ops.write = cvfs_write;
1130 ops.seek = cvfs_seek;
1131 ops.flush = cvfs_flush;
1132 ops.close = cvfs_close;
1133 ops.exit = cvfs_exit;
1134 ops.lock = cvfs_lock;
1135 ops.setfileinfo = cvfs_setfileinfo;
1136 ops.qfileinfo = cvfs_qfileinfo;
1137 ops.fsinfo = cvfs_fsinfo;
1138 ops.lpq = cvfs_lpq;
1139 ops.search_first = cvfs_search_first;
1140 ops.search_next = cvfs_search_next;
1141 ops.search_close = cvfs_search_close;
1142 ops.trans = cvfs_trans;
1143 ops.logoff = cvfs_logoff;
1144 ops.async_setup = cvfs_async_setup;
1145 ops.cancel = cvfs_cancel;
1146 ops.notify = cvfs_notify;
1147 ops.trans2 = cvfs_trans2;
1148
1149 /* register ourselves with the NTVFS subsystem. We register
1150 under the name 'cifs'. */
1151 ret = ntvfs_register(&ops, &vers);
1152
1153 if (!NT_STATUS_IS_OK(ret)) {
1154 DEBUG(0,("Failed to register CIFS backend!\n"));
1155 }
1156
1157 return ret;
1158 }