2 Unix SMB/CIFS implementation.
4 CIFS-on-CIFS NTVFS filesystem backend
6 Copyright (C) Andrew Tridgell 2003
7 Copyright (C) James J Myers 2003 <myersjj@samba.org>
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.
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.
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/>.
23 this implements a CIFS->CIFS NTVFS filesystem backend.
28 #include "libcli/raw/libcliraw.h"
29 #include "libcli/smb_composite/smb_composite.h"
30 #include "auth/auth.h"
31 #include "auth/credentials/credentials.h"
32 #include "ntvfs/ntvfs.h"
33 #include "lib/util/dlinklist.h"
34 #include "param/param.h"
35 #include "libcli/resolve/resolve.h"
38 struct cvfs_file *prev, *next;
40 struct ntvfs_handle *h;
43 /* this is stored in ntvfs_private */
45 struct smbcli_tree *tree;
46 struct smbcli_transport *transport;
47 struct ntvfs_module_context *ntvfs;
48 struct async_info *pending;
49 struct cvfs_file *files;
55 /* a structure used to pass information to an async handler */
57 struct async_info *next, *prev;
58 struct cvfs_private *cvfs;
59 struct ntvfs_request *req;
60 struct smbcli_request *c_req;
65 #define SETUP_PID private->tree->session->pid = req->smbpid
67 #define SETUP_FILE_HERE(f) do { \
68 f = ntvfs_handle_get_backend_data(io->generic.in.file.ntvfs, ntvfs); \
69 if (!f) return NT_STATUS_INVALID_HANDLE; \
70 io->generic.in.file.fnum = f->fnum; \
73 #define SETUP_FILE do { \
74 struct cvfs_file *f; \
78 #define SETUP_PID_AND_FILE do { \
83 #define CIFS_SERVER "cifs:server"
84 #define CIFS_USER "cifs:user"
85 #define CIFS_PASSWORD "cifs:password"
86 #define CIFS_DOMAIN "cifs:domain"
87 #define CIFS_SHARE "cifs:share"
88 #define CIFS_USE_MACHINE_ACCT "cifs:use-machine-account"
89 #define CIFS_MAP_GENERIC "cifs:map-generic"
90 #define CIFS_MAP_TRANS2 "cifs:map-trans2"
92 #define CIFS_USE_MACHINE_ACCT_DEFAULT false
93 #define CIFS_MAP_GENERIC_DEFAULT false
94 #define CIFS_MAP_TRANS2_DEFAULT true
97 a handler for oplock break events from the server - these need to be passed
100 static bool oplock_handler(struct smbcli_transport *transport, uint16_t tid, uint16_t fnum, uint8_t level, void *p_private)
102 struct cvfs_private *private = p_private;
104 struct ntvfs_handle *h = NULL;
107 for (f=private->files; f; f=f->next) {
108 if (f->fnum != fnum) continue;
114 DEBUG(5,("vfs_cifs: ignoring oplock break level %d for fnum %d\n", level, fnum));
118 DEBUG(5,("vfs_cifs: sending oplock break level %d for fnum %d\n", level, fnum));
119 status = ntvfs_send_oplock_break(private->ntvfs, h, level);
120 if (!NT_STATUS_IS_OK(status)) return false;
125 connect to a share - used when a tree_connect operation comes in.
127 static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs,
128 struct ntvfs_request *req, const char *sharename)
131 struct cvfs_private *private;
132 const char *host, *user, *pass, *domain, *remote_share;
133 struct smb_composite_connect io;
134 struct composite_context *creq;
135 struct share_config *scfg = ntvfs->ctx->config;
137 struct cli_credentials *credentials;
138 bool machine_account;
140 /* Here we need to determine which server to connect to.
141 * For now we use parametric options, type cifs.
142 * Later we will use security=server and auth_server.c.
144 host = share_string_option(scfg, CIFS_SERVER, NULL);
145 user = share_string_option(scfg, CIFS_USER, NULL);
146 pass = share_string_option(scfg, CIFS_PASSWORD, NULL);
147 domain = share_string_option(scfg, CIFS_DOMAIN, NULL);
148 remote_share = share_string_option(scfg, CIFS_SHARE, NULL);
150 remote_share = sharename;
153 machine_account = share_bool_option(scfg, CIFS_USE_MACHINE_ACCT, CIFS_USE_MACHINE_ACCT_DEFAULT);
155 private = talloc_zero(ntvfs, struct cvfs_private);
157 return NT_STATUS_NO_MEMORY;
160 ntvfs->private_data = private;
163 DEBUG(1,("CIFS backend: You must supply server\n"));
164 return NT_STATUS_INVALID_PARAMETER;
168 DEBUG(5, ("CIFS backend: Using specified password\n"));
169 credentials = cli_credentials_init(private);
171 return NT_STATUS_NO_MEMORY;
173 cli_credentials_set_event_context(credentials, ntvfs->ctx->event_ctx);
174 cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
175 cli_credentials_set_username(credentials, user, CRED_SPECIFIED);
177 cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
179 cli_credentials_set_password(credentials, pass, CRED_SPECIFIED);
180 } else if (machine_account) {
181 DEBUG(5, ("CIFS backend: Using machine account\n"));
182 credentials = cli_credentials_init(private);
183 cli_credentials_set_event_context(credentials, ntvfs->ctx->event_ctx);
184 cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
186 cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
188 status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx);
189 if (!NT_STATUS_IS_OK(status)) {
192 } else if (req->session_info->credentials) {
193 DEBUG(5, ("CIFS backend: Using delegated credentials\n"));
194 credentials = req->session_info->credentials;
196 DEBUG(1,("CIFS backend: NO delegated credentials found: You must supply server, user and password or the client must supply delegated credentials\n"));
197 return NT_STATUS_INVALID_PARAMETER;
200 /* connect to the server, using the smbd event context */
201 io.in.dest_host = host;
202 io.in.dest_ports = lp_smb_ports(ntvfs->ctx->lp_ctx);
203 io.in.called_name = host;
204 io.in.credentials = credentials;
205 io.in.fallback_to_anonymous = false;
206 io.in.workgroup = lp_workgroup(ntvfs->ctx->lp_ctx);
207 io.in.service = remote_share;
208 io.in.service_type = "?????";
209 lp_smbcli_options(ntvfs->ctx->lp_ctx, &io.in.options);
211 if (!(ntvfs->ctx->client_caps & NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS)) {
212 io.in.options.use_level2_oplocks = false;
215 creq = smb_composite_connect_send(&io, private,
216 lp_resolve_context(ntvfs->ctx->lp_ctx),
217 ntvfs->ctx->event_ctx);
218 status = smb_composite_connect_recv(creq, private);
219 NT_STATUS_NOT_OK_RETURN(status);
221 private->tree = io.out.tree;
223 private->transport = private->tree->session->transport;
225 private->ntvfs = ntvfs;
227 ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
228 NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->fs_type);
229 ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:");
230 NT_STATUS_HAVE_NO_MEMORY(ntvfs->ctx->dev_type);
232 /* we need to receive oplock break requests from the server */
233 smbcli_oplock_handler(private->transport, oplock_handler, private);
235 private->map_generic = share_bool_option(scfg, CIFS_MAP_GENERIC, CIFS_MAP_GENERIC_DEFAULT);
237 private->map_trans2 = share_bool_option(scfg, CIFS_MAP_TRANS2, CIFS_MAP_TRANS2_DEFAULT);
243 disconnect from a share
245 static NTSTATUS cvfs_disconnect(struct ntvfs_module_context *ntvfs)
247 struct cvfs_private *private = ntvfs->private_data;
248 struct async_info *a, *an;
250 /* first cleanup pending requests */
251 for (a=private->pending; a; a = an) {
253 smbcli_request_destroy(a->c_req);
257 talloc_free(private);
258 ntvfs->private_data = NULL;
264 destroy an async info structure
266 static int async_info_destructor(struct async_info *async)
268 DLIST_REMOVE(async->cvfs->pending, async);
273 a handler for simple async replies
274 this handler can only be used for functions that don't return any
275 parameters (those that just return a status code)
277 static void async_simple(struct smbcli_request *c_req)
279 struct async_info *async = c_req->async.private;
280 struct ntvfs_request *req = async->req;
281 req->async_states->status = smbcli_request_simple_recv(c_req);
283 req->async_states->send_fn(req);
287 /* save some typing for the simple functions */
288 #define ASYNC_RECV_TAIL_F(io, async_fn, file) do { \
289 if (!c_req) return NT_STATUS_UNSUCCESSFUL; \
291 struct async_info *async; \
292 async = talloc(req, struct async_info); \
293 if (!async) return NT_STATUS_NO_MEMORY; \
297 async->cvfs = private; \
298 async->c_req = c_req; \
299 DLIST_ADD(private->pending, async); \
300 c_req->async.private = async; \
301 talloc_set_destructor(async, async_info_destructor); \
303 c_req->async.fn = async_fn; \
304 req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC; \
305 return NT_STATUS_OK; \
308 #define ASYNC_RECV_TAIL(io, async_fn) ASYNC_RECV_TAIL_F(io, async_fn, NULL)
310 #define SIMPLE_ASYNC_TAIL ASYNC_RECV_TAIL(NULL, async_simple)
313 delete a file - the dirtype specifies the file types to include in the search.
314 The name can contain CIFS wildcards, but rarely does (except with OS/2 clients)
316 static NTSTATUS cvfs_unlink(struct ntvfs_module_context *ntvfs,
317 struct ntvfs_request *req, union smb_unlink *unl)
319 struct cvfs_private *private = ntvfs->private_data;
320 struct smbcli_request *c_req;
324 /* see if the front end will allow us to perform this
325 function asynchronously. */
326 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
327 return smb_raw_unlink(private->tree, unl);
330 c_req = smb_raw_unlink_send(private->tree, unl);
336 a handler for async ioctl replies
338 static void async_ioctl(struct smbcli_request *c_req)
340 struct async_info *async = c_req->async.private;
341 struct ntvfs_request *req = async->req;
342 req->async_states->status = smb_raw_ioctl_recv(c_req, req, async->parms);
344 req->async_states->send_fn(req);
350 static NTSTATUS cvfs_ioctl(struct ntvfs_module_context *ntvfs,
351 struct ntvfs_request *req, union smb_ioctl *io)
353 struct cvfs_private *private = ntvfs->private_data;
354 struct smbcli_request *c_req;
358 /* see if the front end will allow us to perform this
359 function asynchronously. */
360 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
361 return smb_raw_ioctl(private->tree, req, io);
364 c_req = smb_raw_ioctl_send(private->tree, io);
366 ASYNC_RECV_TAIL(io, async_ioctl);
370 check if a directory exists
372 static NTSTATUS cvfs_chkpath(struct ntvfs_module_context *ntvfs,
373 struct ntvfs_request *req, union smb_chkpath *cp)
375 struct cvfs_private *private = ntvfs->private_data;
376 struct smbcli_request *c_req;
380 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
381 return smb_raw_chkpath(private->tree, cp);
384 c_req = smb_raw_chkpath_send(private->tree, cp);
390 a handler for async qpathinfo replies
392 static void async_qpathinfo(struct smbcli_request *c_req)
394 struct async_info *async = c_req->async.private;
395 struct ntvfs_request *req = async->req;
396 req->async_states->status = smb_raw_pathinfo_recv(c_req, req, async->parms);
398 req->async_states->send_fn(req);
402 return info on a pathname
404 static NTSTATUS cvfs_qpathinfo(struct ntvfs_module_context *ntvfs,
405 struct ntvfs_request *req, union smb_fileinfo *info)
407 struct cvfs_private *private = ntvfs->private_data;
408 struct smbcli_request *c_req;
412 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
413 return smb_raw_pathinfo(private->tree, req, info);
416 c_req = smb_raw_pathinfo_send(private->tree, info);
418 ASYNC_RECV_TAIL(info, async_qpathinfo);
422 a handler for async qfileinfo replies
424 static void async_qfileinfo(struct smbcli_request *c_req)
426 struct async_info *async = c_req->async.private;
427 struct ntvfs_request *req = async->req;
428 req->async_states->status = smb_raw_fileinfo_recv(c_req, req, async->parms);
430 req->async_states->send_fn(req);
434 query info on a open file
436 static NTSTATUS cvfs_qfileinfo(struct ntvfs_module_context *ntvfs,
437 struct ntvfs_request *req, union smb_fileinfo *io)
439 struct cvfs_private *private = ntvfs->private_data;
440 struct smbcli_request *c_req;
444 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
445 return smb_raw_fileinfo(private->tree, req, io);
448 c_req = smb_raw_fileinfo_send(private->tree, io);
450 ASYNC_RECV_TAIL(io, async_qfileinfo);
455 set info on a pathname
457 static NTSTATUS cvfs_setpathinfo(struct ntvfs_module_context *ntvfs,
458 struct ntvfs_request *req, union smb_setfileinfo *st)
460 struct cvfs_private *private = ntvfs->private_data;
461 struct smbcli_request *c_req;
465 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
466 return smb_raw_setpathinfo(private->tree, st);
469 c_req = smb_raw_setpathinfo_send(private->tree, st);
476 a handler for async open replies
478 static void async_open(struct smbcli_request *c_req)
480 struct async_info *async = c_req->async.private;
481 struct cvfs_private *cvfs = async->cvfs;
482 struct ntvfs_request *req = async->req;
483 struct cvfs_file *f = async->f;
484 union smb_open *io = async->parms;
485 union smb_handle *file;
487 req->async_states->status = smb_raw_open_recv(c_req, req, io);
488 SMB_OPEN_OUT_FILE(io, file);
489 f->fnum = file->fnum;
491 if (!NT_STATUS_IS_OK(req->async_states->status)) goto failed;
492 req->async_states->status = ntvfs_handle_set_backend_data(f->h, cvfs->ntvfs, f);
493 if (!NT_STATUS_IS_OK(req->async_states->status)) goto failed;
495 DLIST_ADD(cvfs->files, f);
497 req->async_states->send_fn(req);
503 static NTSTATUS cvfs_open(struct ntvfs_module_context *ntvfs,
504 struct ntvfs_request *req, union smb_open *io)
506 struct cvfs_private *private = ntvfs->private_data;
507 struct smbcli_request *c_req;
508 struct ntvfs_handle *h;
514 if (io->generic.level != RAW_OPEN_GENERIC &&
515 private->map_generic) {
516 return ntvfs_map_open(ntvfs, req, io);
519 status = ntvfs_handle_new(ntvfs, req, &h);
520 NT_STATUS_NOT_OK_RETURN(status);
522 f = talloc_zero(h, struct cvfs_file);
523 NT_STATUS_HAVE_NO_MEMORY(f);
526 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
527 union smb_handle *file;
529 status = smb_raw_open(private->tree, req, io);
530 NT_STATUS_NOT_OK_RETURN(status);
532 SMB_OPEN_OUT_FILE(io, file);
533 f->fnum = file->fnum;
535 status = ntvfs_handle_set_backend_data(f->h, private->ntvfs, f);
536 NT_STATUS_NOT_OK_RETURN(status);
538 DLIST_ADD(private->files, f);
543 c_req = smb_raw_open_send(private->tree, io);
545 ASYNC_RECV_TAIL_F(io, async_open, f);
551 static NTSTATUS cvfs_mkdir(struct ntvfs_module_context *ntvfs,
552 struct ntvfs_request *req, union smb_mkdir *md)
554 struct cvfs_private *private = ntvfs->private_data;
555 struct smbcli_request *c_req;
559 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
560 return smb_raw_mkdir(private->tree, md);
563 c_req = smb_raw_mkdir_send(private->tree, md);
571 static NTSTATUS cvfs_rmdir(struct ntvfs_module_context *ntvfs,
572 struct ntvfs_request *req, struct smb_rmdir *rd)
574 struct cvfs_private *private = ntvfs->private_data;
575 struct smbcli_request *c_req;
579 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
580 return smb_raw_rmdir(private->tree, rd);
582 c_req = smb_raw_rmdir_send(private->tree, rd);
588 rename a set of files
590 static NTSTATUS cvfs_rename(struct ntvfs_module_context *ntvfs,
591 struct ntvfs_request *req, union smb_rename *ren)
593 struct cvfs_private *private = ntvfs->private_data;
594 struct smbcli_request *c_req;
598 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
599 return smb_raw_rename(private->tree, ren);
602 c_req = smb_raw_rename_send(private->tree, ren);
610 static NTSTATUS cvfs_copy(struct ntvfs_module_context *ntvfs,
611 struct ntvfs_request *req, struct smb_copy *cp)
613 return NT_STATUS_NOT_SUPPORTED;
617 a handler for async read replies
619 static void async_read(struct smbcli_request *c_req)
621 struct async_info *async = c_req->async.private;
622 struct ntvfs_request *req = async->req;
623 req->async_states->status = smb_raw_read_recv(c_req, async->parms);
625 req->async_states->send_fn(req);
631 static NTSTATUS cvfs_read(struct ntvfs_module_context *ntvfs,
632 struct ntvfs_request *req, union smb_read *io)
634 struct cvfs_private *private = ntvfs->private_data;
635 struct smbcli_request *c_req;
639 if (io->generic.level != RAW_READ_GENERIC &&
640 private->map_generic) {
641 return ntvfs_map_read(ntvfs, req, io);
646 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
647 return smb_raw_read(private->tree, io);
650 c_req = smb_raw_read_send(private->tree, io);
652 ASYNC_RECV_TAIL(io, async_read);
656 a handler for async write replies
658 static void async_write(struct smbcli_request *c_req)
660 struct async_info *async = c_req->async.private;
661 struct ntvfs_request *req = async->req;
662 req->async_states->status = smb_raw_write_recv(c_req, async->parms);
664 req->async_states->send_fn(req);
670 static NTSTATUS cvfs_write(struct ntvfs_module_context *ntvfs,
671 struct ntvfs_request *req, union smb_write *io)
673 struct cvfs_private *private = ntvfs->private_data;
674 struct smbcli_request *c_req;
678 if (io->generic.level != RAW_WRITE_GENERIC &&
679 private->map_generic) {
680 return ntvfs_map_write(ntvfs, req, io);
684 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
685 return smb_raw_write(private->tree, io);
688 c_req = smb_raw_write_send(private->tree, io);
690 ASYNC_RECV_TAIL(io, async_write);
694 a handler for async seek replies
696 static void async_seek(struct smbcli_request *c_req)
698 struct async_info *async = c_req->async.private;
699 struct ntvfs_request *req = async->req;
700 req->async_states->status = smb_raw_seek_recv(c_req, async->parms);
702 req->async_states->send_fn(req);
708 static NTSTATUS cvfs_seek(struct ntvfs_module_context *ntvfs,
709 struct ntvfs_request *req,
712 struct cvfs_private *private = ntvfs->private_data;
713 struct smbcli_request *c_req;
717 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
718 return smb_raw_seek(private->tree, io);
721 c_req = smb_raw_seek_send(private->tree, io);
723 ASYNC_RECV_TAIL(io, async_seek);
729 static NTSTATUS cvfs_flush(struct ntvfs_module_context *ntvfs,
730 struct ntvfs_request *req,
733 struct cvfs_private *private = ntvfs->private_data;
734 struct smbcli_request *c_req;
737 switch (io->generic.level) {
738 case RAW_FLUSH_FLUSH:
742 io->generic.in.file.fnum = 0xFFFF;
745 return NT_STATUS_INVALID_LEVEL;
748 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
749 return smb_raw_flush(private->tree, io);
752 c_req = smb_raw_flush_send(private->tree, io);
760 static NTSTATUS cvfs_close(struct ntvfs_module_context *ntvfs,
761 struct ntvfs_request *req, union smb_close *io)
763 struct cvfs_private *private = ntvfs->private_data;
764 struct smbcli_request *c_req;
769 if (io->generic.level != RAW_CLOSE_GENERIC &&
770 private->map_generic) {
771 return ntvfs_map_close(ntvfs, req, io);
774 /* Note, we aren't free-ing f, or it's h here. Should we?
775 even if file-close fails, we'll remove it from the list,
776 what else would we do? Maybe we should not remove until
777 after the proxied call completes? */
778 DLIST_REMOVE(private->files, f);
780 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
781 return smb_raw_close(private->tree, io);
784 c_req = smb_raw_close_send(private->tree, io);
790 exit - closing files open by the pid
792 static NTSTATUS cvfs_exit(struct ntvfs_module_context *ntvfs,
793 struct ntvfs_request *req)
795 struct cvfs_private *private = ntvfs->private_data;
796 struct smbcli_request *c_req;
800 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
801 return smb_raw_exit(private->tree->session);
804 c_req = smb_raw_exit_send(private->tree->session);
810 logoff - closing files open by the user
812 static NTSTATUS cvfs_logoff(struct ntvfs_module_context *ntvfs,
813 struct ntvfs_request *req)
815 /* we can't do this right in the cifs backend .... */
820 setup for an async call - nothing to do yet
822 static NTSTATUS cvfs_async_setup(struct ntvfs_module_context *ntvfs,
823 struct ntvfs_request *req,
832 static NTSTATUS cvfs_cancel(struct ntvfs_module_context *ntvfs,
833 struct ntvfs_request *req)
835 struct cvfs_private *private = ntvfs->private_data;
836 struct async_info *a;
838 /* find the matching request */
839 for (a=private->pending;a;a=a->next) {
846 return NT_STATUS_INVALID_PARAMETER;
849 return smb_raw_ntcancel(a->c_req);
855 static NTSTATUS cvfs_lock(struct ntvfs_module_context *ntvfs,
856 struct ntvfs_request *req, union smb_lock *io)
858 struct cvfs_private *private = ntvfs->private_data;
859 struct smbcli_request *c_req;
863 if (io->generic.level != RAW_LOCK_GENERIC &&
864 private->map_generic) {
865 return ntvfs_map_lock(ntvfs, req, io);
869 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
870 return smb_raw_lock(private->tree, io);
873 c_req = smb_raw_lock_send(private->tree, io);
878 set info on a open file
880 static NTSTATUS cvfs_setfileinfo(struct ntvfs_module_context *ntvfs,
881 struct ntvfs_request *req,
882 union smb_setfileinfo *io)
884 struct cvfs_private *private = ntvfs->private_data;
885 struct smbcli_request *c_req;
889 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
890 return smb_raw_setfileinfo(private->tree, io);
892 c_req = smb_raw_setfileinfo_send(private->tree, io);
899 a handler for async fsinfo replies
901 static void async_fsinfo(struct smbcli_request *c_req)
903 struct async_info *async = c_req->async.private;
904 struct ntvfs_request *req = async->req;
905 req->async_states->status = smb_raw_fsinfo_recv(c_req, req, async->parms);
907 req->async_states->send_fn(req);
911 return filesystem space info
913 static NTSTATUS cvfs_fsinfo(struct ntvfs_module_context *ntvfs,
914 struct ntvfs_request *req, union smb_fsinfo *fs)
916 struct cvfs_private *private = ntvfs->private_data;
917 struct smbcli_request *c_req;
921 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
922 return smb_raw_fsinfo(private->tree, req, fs);
925 c_req = smb_raw_fsinfo_send(private->tree, req, fs);
927 ASYNC_RECV_TAIL(fs, async_fsinfo);
931 return print queue info
933 static NTSTATUS cvfs_lpq(struct ntvfs_module_context *ntvfs,
934 struct ntvfs_request *req, union smb_lpq *lpq)
936 return NT_STATUS_NOT_SUPPORTED;
940 list files in a directory matching a wildcard pattern
942 static NTSTATUS cvfs_search_first(struct ntvfs_module_context *ntvfs,
943 struct ntvfs_request *req, union smb_search_first *io,
944 void *search_private,
945 bool (*callback)(void *, const union smb_search_data *))
947 struct cvfs_private *private = ntvfs->private_data;
951 return smb_raw_search_first(private->tree, req, io, search_private, callback);
954 /* continue a search */
955 static NTSTATUS cvfs_search_next(struct ntvfs_module_context *ntvfs,
956 struct ntvfs_request *req, union smb_search_next *io,
957 void *search_private,
958 bool (*callback)(void *, const union smb_search_data *))
960 struct cvfs_private *private = ntvfs->private_data;
964 return smb_raw_search_next(private->tree, req, io, search_private, callback);
968 static NTSTATUS cvfs_search_close(struct ntvfs_module_context *ntvfs,
969 struct ntvfs_request *req, union smb_search_close *io)
971 struct cvfs_private *private = ntvfs->private_data;
975 return smb_raw_search_close(private->tree, io);
979 a handler for async trans2 replies
981 static void async_trans2(struct smbcli_request *c_req)
983 struct async_info *async = c_req->async.private;
984 struct ntvfs_request *req = async->req;
985 req->async_states->status = smb_raw_trans2_recv(c_req, req, async->parms);
987 req->async_states->send_fn(req);
991 static NTSTATUS cvfs_trans2(struct ntvfs_module_context *ntvfs,
992 struct ntvfs_request *req,
993 struct smb_trans2 *trans2)
995 struct cvfs_private *private = ntvfs->private_data;
996 struct smbcli_request *c_req;
998 if (private->map_trans2) {
999 return NT_STATUS_NOT_IMPLEMENTED;
1004 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
1005 return smb_raw_trans2(private->tree, req, trans2);
1008 c_req = smb_raw_trans2_send(private->tree, trans2);
1010 ASYNC_RECV_TAIL(trans2, async_trans2);
1014 /* SMBtrans - not used on file shares */
1015 static NTSTATUS cvfs_trans(struct ntvfs_module_context *ntvfs,
1016 struct ntvfs_request *req,
1017 struct smb_trans2 *trans2)
1019 return NT_STATUS_ACCESS_DENIED;
1023 a handler for async change notify replies
1025 static void async_changenotify(struct smbcli_request *c_req)
1027 struct async_info *async = c_req->async.private;
1028 struct ntvfs_request *req = async->req;
1029 req->async_states->status = smb_raw_changenotify_recv(c_req, req, async->parms);
1031 req->async_states->send_fn(req);
1034 /* change notify request - always async */
1035 static NTSTATUS cvfs_notify(struct ntvfs_module_context *ntvfs,
1036 struct ntvfs_request *req,
1037 union smb_notify *io)
1039 struct cvfs_private *private = ntvfs->private_data;
1040 struct smbcli_request *c_req;
1041 int saved_timeout = private->transport->options.request_timeout;
1042 struct cvfs_file *f;
1044 if (io->nttrans.level != RAW_NOTIFY_NTTRANS) {
1045 return NT_STATUS_NOT_IMPLEMENTED;
1050 f = ntvfs_handle_get_backend_data(io->nttrans.in.file.ntvfs, ntvfs);
1051 if (!f) return NT_STATUS_INVALID_HANDLE;
1052 io->nttrans.in.file.fnum = f->fnum;
1054 /* this request doesn't make sense unless its async */
1055 if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
1056 return NT_STATUS_INVALID_PARAMETER;
1059 /* we must not timeout on notify requests - they wait
1061 private->transport->options.request_timeout = 0;
1063 c_req = smb_raw_changenotify_send(private->tree, io);
1065 private->transport->options.request_timeout = saved_timeout;
1067 ASYNC_RECV_TAIL(io, async_changenotify);
1071 initialise the CIFS->CIFS backend, registering ourselves with the ntvfs subsystem
1073 NTSTATUS ntvfs_cifs_init(void)
1076 struct ntvfs_ops ops;
1077 NTVFS_CURRENT_CRITICAL_SIZES(vers);
1081 /* fill in the name and type */
1083 ops.type = NTVFS_DISK;
1085 /* fill in all the operations */
1086 ops.connect = cvfs_connect;
1087 ops.disconnect = cvfs_disconnect;
1088 ops.unlink = cvfs_unlink;
1089 ops.chkpath = cvfs_chkpath;
1090 ops.qpathinfo = cvfs_qpathinfo;
1091 ops.setpathinfo = cvfs_setpathinfo;
1092 ops.open = cvfs_open;
1093 ops.mkdir = cvfs_mkdir;
1094 ops.rmdir = cvfs_rmdir;
1095 ops.rename = cvfs_rename;
1096 ops.copy = cvfs_copy;
1097 ops.ioctl = cvfs_ioctl;
1098 ops.read = cvfs_read;
1099 ops.write = cvfs_write;
1100 ops.seek = cvfs_seek;
1101 ops.flush = cvfs_flush;
1102 ops.close = cvfs_close;
1103 ops.exit = cvfs_exit;
1104 ops.lock = cvfs_lock;
1105 ops.setfileinfo = cvfs_setfileinfo;
1106 ops.qfileinfo = cvfs_qfileinfo;
1107 ops.fsinfo = cvfs_fsinfo;
1109 ops.search_first = cvfs_search_first;
1110 ops.search_next = cvfs_search_next;
1111 ops.search_close = cvfs_search_close;
1112 ops.trans = cvfs_trans;
1113 ops.logoff = cvfs_logoff;
1114 ops.async_setup = cvfs_async_setup;
1115 ops.cancel = cvfs_cancel;
1116 ops.notify = cvfs_notify;
1117 ops.trans2 = cvfs_trans2;
1119 /* register ourselves with the NTVFS subsystem. We register
1120 under the name 'cifs'. */
1121 ret = ntvfs_register(&ops, &vers);
1123 if (!NT_STATUS_IS_OK(ret)) {
1124 DEBUG(0,("Failed to register CIFS backend!\n"));