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Add an assert to track if we try to use an rpc_context after it has been destroyed
[deb_libnfs.git] / lib / libnfs.c
1 /*
2 Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17 /*
18 * High level api to nfs filesystems
19 */
20 #ifdef WIN32
21 #include "win32_compat.h"
22 #define DllExport
23 #else
24 #include <strings.h>
25 #include <sys/statvfs.h>
26 #include <utime.h>
27 #include <unistd.h>
28 #endif/*WIN32*/
29
30 #define _GNU_SOURCE
31
32 #include <stdio.h>
33 #include <stdarg.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <assert.h>
37 #include <errno.h>
38 #include <sys/types.h>
39 #include <sys/stat.h>
40 #include <fcntl.h>
41 #include "libnfs.h"
42 #include "libnfs-raw.h"
43 #include "libnfs-raw-mount.h"
44 #include "libnfs-raw-nfs.h"
45 #include "libnfs-private.h"
46
47 struct nfsdir {
48 struct nfsdirent *entries;
49 struct nfsdirent *current;
50 };
51
52 struct nfsfh {
53 struct nfs_fh3 fh;
54 int is_sync;
55 uint64_t offset;
56 };
57
58 struct nfs_context {
59 struct rpc_context *rpc;
60 char *server;
61 char *export;
62 struct nfs_fh3 rootfh;
63 uint64_t readmax;
64 uint64_t writemax;
65 };
66
67 void nfs_free_nfsdir(struct nfsdir *nfsdir)
68 {
69 while (nfsdir->entries) {
70 struct nfsdirent *dirent = nfsdir->entries->next;
71 if (nfsdir->entries->name != NULL) {
72 free(nfsdir->entries->name);
73 }
74 free(nfsdir->entries);
75 nfsdir->entries = dirent;
76 }
77 free(nfsdir);
78 }
79
80 struct nfs_cb_data;
81 typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
82
83 struct nfs_cb_data {
84 struct nfs_context *nfs;
85 struct nfsfh *nfsfh;
86 char *saved_path, *path;
87
88 nfs_cb cb;
89 void *private_data;
90
91 continue_func continue_cb;
92 void *continue_data;
93 void (*free_continue_data)(void *);
94 int continue_int;
95
96 struct nfs_fh3 fh;
97
98 /* for multi-read/write calls. */
99 int error;
100 int cancel;
101 int num_calls;
102 uint64_t start_offset, max_offset;
103 char *buffer;
104 };
105
106 struct nfs_mcb_data {
107 struct nfs_cb_data *data;
108 uint64_t offset;
109 uint64_t count;
110 };
111
112 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
113
114
115 void nfs_set_auth(struct nfs_context *nfs, AUTH *auth)
116 {
117 rpc_set_auth(nfs->rpc, auth);
118 }
119
120 int nfs_get_fd(struct nfs_context *nfs)
121 {
122 return rpc_get_fd(nfs->rpc);
123 }
124
125 int nfs_queue_length(struct nfs_context *nfs)
126 {
127 return rpc_queue_length(nfs->rpc);
128 }
129
130 int nfs_which_events(struct nfs_context *nfs)
131 {
132 return rpc_which_events(nfs->rpc);
133 }
134
135 int nfs_service(struct nfs_context *nfs, int revents)
136 {
137 return rpc_service(nfs->rpc, revents);
138 }
139
140 char *nfs_get_error(struct nfs_context *nfs)
141 {
142 return rpc_get_error(nfs->rpc);
143 };
144
145 struct nfs_context *nfs_init_context(void)
146 {
147 struct nfs_context *nfs;
148
149 nfs = malloc(sizeof(struct nfs_context));
150 if (nfs == NULL) {
151 return NULL;
152 }
153 nfs->rpc = rpc_init_context();
154 if (nfs->rpc == NULL) {
155 free(nfs);
156 return NULL;
157 }
158
159 nfs->server = NULL;
160 nfs->export = NULL;
161
162 nfs->rootfh.data.data_len = 0;
163 nfs->rootfh.data.data_val = NULL;
164
165 return nfs;
166 }
167
168 void nfs_destroy_context(struct nfs_context *nfs)
169 {
170 rpc_destroy_context(nfs->rpc);
171 nfs->rpc = NULL;
172
173 if (nfs->server) {
174 free(nfs->server);
175 nfs->server = NULL;
176 }
177
178 if (nfs->export) {
179 free(nfs->export);
180 nfs->export = NULL;
181 }
182
183 if (nfs->rootfh.data.data_val != NULL) {
184 free(nfs->rootfh.data.data_val);
185 nfs->rootfh.data.data_val = NULL;
186 }
187
188 free(nfs);
189 }
190
191 void free_nfs_cb_data(struct nfs_cb_data *data)
192 {
193 if (data->saved_path != NULL) {
194 free(data->saved_path);
195 data->saved_path = NULL;
196 }
197
198 if (data->continue_data != NULL) {
199 data->free_continue_data(data->continue_data);
200 data->continue_data = NULL;
201 }
202
203 if (data->fh.data.data_val != NULL) {
204 free(data->fh.data.data_val);
205 data->fh.data.data_val = NULL;
206 }
207
208 if (data->buffer != NULL) {
209 free(data->buffer);
210 data->buffer = NULL;
211 }
212
213 free(data);
214 }
215
216
217
218
219
220 static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
221 {
222 struct nfs_cb_data *data = private_data;
223 struct nfs_context *nfs = data->nfs;
224
225 assert(rpc->magic == RPC_CONTEXT_MAGIC);
226
227 if (status == RPC_STATUS_ERROR) {
228 data->cb(-EFAULT, nfs, command_data, data->private_data);
229 free_nfs_cb_data(data);
230 return;
231 }
232 if (status == RPC_STATUS_CANCEL) {
233 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
234 free_nfs_cb_data(data);
235 return;
236 }
237
238 data->cb(0, nfs, NULL, data->private_data);
239 free_nfs_cb_data(data);
240 }
241
242 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
243 {
244 struct nfs_cb_data *data = private_data;
245 struct nfs_context *nfs = data->nfs;
246 FSINFO3res *res = command_data;
247
248 assert(rpc->magic == RPC_CONTEXT_MAGIC);
249
250 if (status == RPC_STATUS_ERROR) {
251 data->cb(-EFAULT, nfs, command_data, data->private_data);
252 free_nfs_cb_data(data);
253 return;
254 }
255 if (status == RPC_STATUS_CANCEL) {
256 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
257 free_nfs_cb_data(data);
258 return;
259 }
260
261 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
262 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
263
264 if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
265 data->cb(-ENOMEM, nfs, command_data, data->private_data);
266 free_nfs_cb_data(data);
267 return;
268 }
269 }
270
271 static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
272 {
273 struct nfs_cb_data *data = private_data;
274 struct nfs_context *nfs = data->nfs;
275
276 assert(rpc->magic == RPC_CONTEXT_MAGIC);
277
278 if (status == RPC_STATUS_ERROR) {
279 data->cb(-EFAULT, nfs, command_data, data->private_data);
280 free_nfs_cb_data(data);
281 return;
282 }
283 if (status == RPC_STATUS_CANCEL) {
284 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
285 free_nfs_cb_data(data);
286 return;
287 }
288
289 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
290 data->cb(-ENOMEM, nfs, command_data, data->private_data);
291 free_nfs_cb_data(data);
292 return;
293 }
294 }
295
296
297 static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
298 {
299 struct nfs_cb_data *data = private_data;
300 struct nfs_context *nfs = data->nfs;
301
302 assert(rpc->magic == RPC_CONTEXT_MAGIC);
303
304 /* Dont want any more callbacks even if the socket is closed */
305 rpc->connect_cb = NULL;
306
307 if (status == RPC_STATUS_ERROR) {
308 data->cb(-EFAULT, nfs, command_data, data->private_data);
309 free_nfs_cb_data(data);
310 return;
311 }
312 if (status == RPC_STATUS_CANCEL) {
313 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
314 free_nfs_cb_data(data);
315 return;
316 }
317
318 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
319 data->cb(-ENOMEM, nfs, command_data, data->private_data);
320 free_nfs_cb_data(data);
321 return;
322 }
323 }
324
325
326 static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
327 {
328 struct nfs_cb_data *data = private_data;
329 struct nfs_context *nfs = data->nfs;
330 mountres3 *res;
331
332 assert(rpc->magic == RPC_CONTEXT_MAGIC);
333
334 if (status == RPC_STATUS_ERROR) {
335 data->cb(-EFAULT, nfs, command_data, data->private_data);
336 free_nfs_cb_data(data);
337 return;
338 }
339 if (status == RPC_STATUS_CANCEL) {
340 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
341 free_nfs_cb_data(data);
342 return;
343 }
344
345 res = command_data;
346 if (res->fhs_status != MNT3_OK) {
347 rpc_set_error(rpc, "RPC error: Mount failed with error %s(%d) %s(%d)", mountstat3_to_str(res->fhs_status), res->fhs_status, strerror(-mountstat3_to_errno(res->fhs_status)), -mountstat3_to_errno(res->fhs_status));
348 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
349 free_nfs_cb_data(data);
350 return;
351 }
352
353 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
354 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
355 if (nfs->rootfh.data.data_val == NULL) {
356 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
357 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
358 free_nfs_cb_data(data);
359 return;
360 }
361 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
362
363 rpc_disconnect(rpc, "normal disconnect");
364 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
365 data->cb(-ENOMEM, nfs, command_data, data->private_data);
366 free_nfs_cb_data(data);
367 return;
368 }
369 /* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
370 rpc_set_autoreconnect(rpc);
371 }
372
373
374 static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
375 {
376 struct nfs_cb_data *data = private_data;
377 struct nfs_context *nfs = data->nfs;
378
379 assert(rpc->magic == RPC_CONTEXT_MAGIC);
380
381 if (status == RPC_STATUS_ERROR) {
382 data->cb(-EFAULT, nfs, command_data, data->private_data);
383 free_nfs_cb_data(data);
384 return;
385 }
386 if (status == RPC_STATUS_CANCEL) {
387 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
388 free_nfs_cb_data(data);
389 return;
390 }
391
392 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
393 data->cb(-ENOMEM, nfs, command_data, data->private_data);
394 free_nfs_cb_data(data);
395 return;
396 }
397 }
398
399 static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
400 {
401 struct nfs_cb_data *data = private_data;
402 struct nfs_context *nfs = data->nfs;
403
404 assert(rpc->magic == RPC_CONTEXT_MAGIC);
405
406 /* Dont want any more callbacks even if the socket is closed */
407 rpc->connect_cb = NULL;
408
409 if (status == RPC_STATUS_ERROR) {
410 data->cb(-EFAULT, nfs, command_data, data->private_data);
411 free_nfs_cb_data(data);
412 return;
413 }
414 if (status == RPC_STATUS_CANCEL) {
415 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
416 free_nfs_cb_data(data);
417 return;
418 }
419
420 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
421 data->cb(-ENOMEM, nfs, command_data, data->private_data);
422 free_nfs_cb_data(data);
423 return;
424 }
425 }
426
427 static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
428 {
429 struct nfs_cb_data *data = private_data;
430 struct nfs_context *nfs = data->nfs;
431 uint32_t mount_port;
432
433 assert(rpc->magic == RPC_CONTEXT_MAGIC);
434
435 if (status == RPC_STATUS_ERROR) {
436 data->cb(-EFAULT, nfs, command_data, data->private_data);
437 free_nfs_cb_data(data);
438 return;
439 }
440 if (status == RPC_STATUS_CANCEL) {
441 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
442 free_nfs_cb_data(data);
443 return;
444 }
445
446 mount_port = *(uint32_t *)command_data;
447 if (mount_port == 0) {
448 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
449 data->cb(-ENOENT, nfs, command_data, data->private_data);
450 free_nfs_cb_data(data);
451 return;
452 }
453
454 rpc_disconnect(rpc, "normal disconnect");
455 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
456 data->cb(-ENOMEM, nfs, command_data, data->private_data);
457 free_nfs_cb_data(data);
458 return;
459 }
460 }
461
462
463 static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
464 {
465 struct nfs_cb_data *data = private_data;
466 struct nfs_context *nfs = data->nfs;
467
468 assert(rpc->magic == RPC_CONTEXT_MAGIC);
469
470 if (status == RPC_STATUS_ERROR) {
471 data->cb(-EFAULT, nfs, command_data, data->private_data);
472 free_nfs_cb_data(data);
473 return;
474 }
475 if (status == RPC_STATUS_CANCEL) {
476 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
477 free_nfs_cb_data(data);
478 return;
479 }
480
481 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, nfs_mount_3_cb, private_data) != 0) {
482 data->cb(-ENOMEM, nfs, command_data, data->private_data);
483 free_nfs_cb_data(data);
484 return;
485 }
486 }
487
488 static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
489 {
490 struct nfs_cb_data *data = private_data;
491 struct nfs_context *nfs = data->nfs;
492
493 assert(rpc->magic == RPC_CONTEXT_MAGIC);
494
495 /* Dont want any more callbacks even if the socket is closed */
496 rpc->connect_cb = NULL;
497
498 if (status == RPC_STATUS_ERROR) {
499 data->cb(-EFAULT, nfs, command_data, data->private_data);
500 free_nfs_cb_data(data);
501 return;
502 }
503 if (status == RPC_STATUS_CANCEL) {
504 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
505 free_nfs_cb_data(data);
506 return;
507 }
508
509 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
510 data->cb(-ENOMEM, nfs, command_data, data->private_data);
511 free_nfs_cb_data(data);
512 return;
513 }
514 }
515
516 /*
517 * Async call for mounting an nfs share and geting the root filehandle
518 */
519 int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
520 {
521 struct nfs_cb_data *data;
522 char *new_server, *new_export;
523
524 data = malloc(sizeof(struct nfs_cb_data));
525 if (data == NULL) {
526 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
527 return -1;
528 }
529 memset(data, 0, sizeof(struct nfs_cb_data));
530 new_server = strdup(server);
531 new_export = strdup(export);
532 if (nfs->server != NULL) {
533 free(nfs->server);
534 }
535 nfs->server = new_server;
536 if (nfs->export != NULL) {
537 free(nfs->export);
538 }
539 nfs->export = new_export;
540 data->nfs = nfs;
541 data->cb = cb;
542 data->private_data = private_data;
543
544 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
545 rpc_set_error(nfs->rpc, "Failed to start connection");
546 free_nfs_cb_data(data);
547 return -1;
548 }
549
550 return 0;
551 }
552
553
554
555 /*
556 * Functions to first look up a path, component by component, and then finally call a specific function once
557 * the filehandle for the final component is found.
558 */
559 static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
560 {
561 struct nfs_cb_data *data = private_data;
562 struct nfs_context *nfs = data->nfs;
563 LOOKUP3res *res;
564
565 assert(rpc->magic == RPC_CONTEXT_MAGIC);
566
567 if (status == RPC_STATUS_ERROR) {
568 data->cb(-EFAULT, nfs, command_data, data->private_data);
569 free_nfs_cb_data(data);
570 return;
571 }
572 if (status == RPC_STATUS_CANCEL) {
573 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
574 free_nfs_cb_data(data);
575 return;
576 }
577
578 res = command_data;
579 if (res->status != NFS3_OK) {
580 rpc_set_error(nfs->rpc, "NFS: Lookup of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
581 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
582 free_nfs_cb_data(data);
583 return;
584 }
585
586 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
587 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
588 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
589 free_nfs_cb_data(data);
590 return;
591 }
592 }
593
594 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
595 {
596 char *path, *str;
597
598 while (*data->path == '/') {
599 data->path++;
600 }
601
602 path = data->path;
603 str = strchr(path, '/');
604 if (str != NULL) {
605 *str = 0;
606 data->path = str+1;
607 } else {
608 while (*data->path != 0) {
609 data->path++;
610 }
611 }
612
613 if (*path == 0) {
614 data->fh.data.data_len = fh->data.data_len;
615 data->fh.data.data_val = malloc(data->fh.data.data_len);
616 if (data->fh.data.data_val == NULL) {
617 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
618 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
619 free_nfs_cb_data(data);
620 return -1;
621 }
622 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
623 data->continue_cb(nfs, data);
624 return 0;
625 }
626
627 if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
628 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
629 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
630 free_nfs_cb_data(data);
631 return -1;
632 }
633 return 0;
634 }
635
636 static int nfs_lookuppath_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data, continue_func continue_cb, void *continue_data, void (*free_continue_data)(void *), int continue_int)
637 {
638 struct nfs_cb_data *data;
639
640 if (path[0] != '/') {
641 rpc_set_error(nfs->rpc, "Pathname is not absulute %s", path);
642 return -1;
643 }
644
645 data = malloc(sizeof(struct nfs_cb_data));
646 if (data == NULL) {
647 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
648 return -1;
649 }
650 memset(data, 0, sizeof(struct nfs_cb_data));
651 data->nfs = nfs;
652 data->cb = cb;
653 data->continue_cb = continue_cb;
654 data->continue_data = continue_data;
655 data->free_continue_data = free_continue_data;
656 data->continue_int = continue_int;
657 data->private_data = private_data;
658 data->saved_path = strdup(path);
659 if (data->saved_path == NULL) {
660 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
661 free_nfs_cb_data(data);
662 return -1;
663 }
664 data->path = data->saved_path;
665
666 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
667 /* return 0 here since the callback will be invoked if there is a failure */
668 return 0;
669 }
670 return 0;
671 }
672
673
674
675
676
677 /*
678 * Async stat()
679 */
680 static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
681 {
682 GETATTR3res *res;
683 struct nfs_cb_data *data = private_data;
684 struct nfs_context *nfs = data->nfs;
685 struct stat st;
686
687 assert(rpc->magic == RPC_CONTEXT_MAGIC);
688
689 if (status == RPC_STATUS_ERROR) {
690 data->cb(-EFAULT, nfs, command_data, data->private_data);
691 free_nfs_cb_data(data);
692 return;
693 }
694 if (status == RPC_STATUS_CANCEL) {
695 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
696 free_nfs_cb_data(data);
697 return;
698 }
699
700 res = command_data;
701 if (res->status != NFS3_OK) {
702 rpc_set_error(nfs->rpc, "NFS: GETATTR of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
703 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
704 free_nfs_cb_data(data);
705 return;
706 }
707
708 st.st_dev = -1;
709 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
710 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
711 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
712 st.st_mode |= S_IFDIR ;
713 }
714 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
715 st.st_mode |= S_IFREG ;
716 }
717 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
718 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
719 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
720 st.st_rdev = 0;
721 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
722 #ifndef WIN32
723 st.st_blksize = 4096;
724 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
725 #endif//WIN32
726 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
727 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
728 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
729
730 data->cb(0, nfs, &st, data->private_data);
731 free_nfs_cb_data(data);
732 }
733
734 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
735 {
736 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
737 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
738 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
739 free_nfs_cb_data(data);
740 return -1;
741 }
742 return 0;
743 }
744
745 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
746 {
747 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
748 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
749 return -1;
750 }
751
752 return 0;
753 }
754
755
756
757
758
759 /*
760 * Async open()
761 */
762 static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
763 {
764 ACCESS3res *res;
765 struct nfs_cb_data *data = private_data;
766 struct nfs_context *nfs = data->nfs;
767 struct nfsfh *nfsfh;
768 unsigned int nfsmode = 0;
769
770 assert(rpc->magic == RPC_CONTEXT_MAGIC);
771
772 if (status == RPC_STATUS_ERROR) {
773 data->cb(-EFAULT, nfs, command_data, data->private_data);
774 free_nfs_cb_data(data);
775 return;
776 }
777 if (status == RPC_STATUS_CANCEL) {
778 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
779 free_nfs_cb_data(data);
780 return;
781 }
782
783 res = command_data;
784 if (res->status != NFS3_OK) {
785 rpc_set_error(nfs->rpc, "NFS: ACCESS of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
786 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
787 free_nfs_cb_data(data);
788 return;
789 }
790
791 if (data->continue_int & O_WRONLY) {
792 nfsmode |= ACCESS3_MODIFY;
793 }
794 if (data->continue_int & O_RDWR) {
795 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
796 }
797 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
798 nfsmode |= ACCESS3_READ;
799 }
800
801
802 if (res->ACCESS3res_u.resok.access != nfsmode) {
803 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
804 nfsmode&ACCESS3_READ?'r':'-',
805 nfsmode&ACCESS3_MODIFY?'w':'-',
806 nfsmode&ACCESS3_EXECUTE?'x':'-',
807 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
808 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
809 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
810 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
811 free_nfs_cb_data(data);
812 return;
813 }
814
815 nfsfh = malloc(sizeof(struct nfsfh));
816 if (nfsfh == NULL) {
817 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
818 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
819 free_nfs_cb_data(data);
820 return;
821 }
822 memset(nfsfh, 0, sizeof(struct nfsfh));
823
824 if (data->continue_int & O_SYNC) {
825 nfsfh->is_sync = 1;
826 }
827
828 /* steal the filehandle */
829 nfsfh->fh.data.data_len = data->fh.data.data_len;
830 nfsfh->fh.data.data_val = data->fh.data.data_val;
831 data->fh.data.data_val = NULL;
832
833 data->cb(0, nfs, nfsfh, data->private_data);
834 free_nfs_cb_data(data);
835 }
836
837 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
838 {
839 int nfsmode = 0;
840
841 if (data->continue_int & O_WRONLY) {
842 nfsmode |= ACCESS3_MODIFY;
843 }
844 if (data->continue_int & O_RDWR) {
845 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
846 }
847 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
848 nfsmode |= ACCESS3_READ;
849 }
850
851 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
852 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
853 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
854 free_nfs_cb_data(data);
855 return -1;
856 }
857 return 0;
858 }
859
860 int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
861 {
862 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
863 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
864 return -1;
865 }
866
867 return 0;
868 }
869
870
871
872
873
874 /*
875 * Async pread()
876 */
877 static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
878 {
879 struct nfs_cb_data *data = private_data;
880 struct nfs_context *nfs = data->nfs;
881 READ3res *res;
882
883 assert(rpc->magic == RPC_CONTEXT_MAGIC);
884
885 if (status == RPC_STATUS_ERROR) {
886 data->cb(-EFAULT, nfs, command_data, data->private_data);
887 free_nfs_cb_data(data);
888 return;
889 }
890 if (status == RPC_STATUS_CANCEL) {
891 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
892 free_nfs_cb_data(data);
893 return;
894 }
895
896 res = command_data;
897 if (res->status != NFS3_OK) {
898 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
899 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
900 free_nfs_cb_data(data);
901 return;
902 }
903
904 data->nfsfh->offset += res->READ3res_u.resok.count;
905 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
906 free_nfs_cb_data(data);
907 }
908
909 static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
910 {
911 struct nfs_mcb_data *mdata = private_data;
912 struct nfs_cb_data *data = mdata->data;
913 struct nfs_context *nfs = data->nfs;
914 READ3res *res;
915
916 assert(rpc->magic == RPC_CONTEXT_MAGIC);
917
918 data->num_calls--;
919
920 if (status == RPC_STATUS_ERROR) {
921 /* flag the failure but do not invoke callback until we have received all responses */
922 data->error = 1;
923 }
924 if (status == RPC_STATUS_CANCEL) {
925 /* flag the cancellation but do not invoke callback until we have received all responses */
926 data->cancel = 1;
927 }
928
929 /* reassemble the data into the buffer */
930 if (status == RPC_STATUS_SUCCESS) {
931 res = command_data;
932 if (res->status != NFS3_OK) {
933 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
934 data->error = 1;
935 } else {
936 if (res->READ3res_u.resok.count > 0) {
937 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
938 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
939 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
940 }
941 }
942 }
943 }
944
945 if (data->num_calls > 0) {
946 /* still waiting for more replies */
947 free(mdata);
948 return;
949 }
950
951 if (data->error != 0) {
952 data->cb(-EFAULT, nfs, command_data, data->private_data);
953 free_nfs_cb_data(data);
954 free(mdata);
955 return;
956 }
957 if (data->cancel != 0) {
958 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
959 free_nfs_cb_data(data);
960 free(mdata);
961 return;
962 }
963
964 data->nfsfh->offset = data->max_offset;
965 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
966
967 free_nfs_cb_data(data);
968 free(mdata);
969 }
970
971 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
972 {
973 struct nfs_cb_data *data;
974
975 data = malloc(sizeof(struct nfs_cb_data));
976 if (data == NULL) {
977 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
978 return -1;
979 }
980 memset(data, 0, sizeof(struct nfs_cb_data));
981 data->nfs = nfs;
982 data->cb = cb;
983 data->private_data = private_data;
984 data->nfsfh = nfsfh;
985
986 nfsfh->offset = offset;
987
988 if (count <= nfs_get_readmax(nfs)) {
989 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
990 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
991 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
992 free_nfs_cb_data(data);
993 return -1;
994 }
995 return 0;
996 }
997
998 /* trying to read more than maximum server read size, we has to chop it up into smaller
999 * reads and collect into a reassembly buffer.
1000 * we send all reads in parallell so that performance is still good.
1001 */
1002 data->max_offset = offset;
1003 data->start_offset = offset;
1004
1005 data->buffer = malloc(count);
1006 if (data->buffer == NULL) {
1007 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
1008 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1009 free_nfs_cb_data(data);
1010 return -1;
1011 }
1012
1013 while (count > 0) {
1014 uint64_t readcount = count;
1015 struct nfs_mcb_data *mdata;
1016
1017 if (readcount > nfs_get_readmax(nfs)) {
1018 readcount = nfs_get_readmax(nfs);
1019 }
1020
1021 mdata = malloc(sizeof(struct nfs_mcb_data));
1022 if (mdata == NULL) {
1023 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1024 return -1;
1025 }
1026 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1027 mdata->data = data;
1028 mdata->offset = offset;
1029 mdata->count = readcount;
1030 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
1031 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1032 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1033 free(mdata);
1034 return -1;
1035 }
1036
1037 count -= readcount;
1038 offset += readcount;
1039 data->num_calls++;
1040 }
1041
1042 return 0;
1043 }
1044
1045 /*
1046 * Async read()
1047 */
1048 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
1049 {
1050 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
1051 }
1052
1053
1054
1055 /*
1056 * Async pwrite()
1057 */
1058 static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1059 {
1060 struct nfs_cb_data *data = private_data;
1061 struct nfs_context *nfs = data->nfs;
1062 WRITE3res *res;
1063
1064 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1065
1066 if (status == RPC_STATUS_ERROR) {
1067 data->cb(-EFAULT, nfs, command_data, data->private_data);
1068 free_nfs_cb_data(data);
1069 return;
1070 }
1071 if (status == RPC_STATUS_CANCEL) {
1072 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1073 free_nfs_cb_data(data);
1074 return;
1075 }
1076
1077 res = command_data;
1078 if (res->status != NFS3_OK) {
1079 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1080 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1081 free_nfs_cb_data(data);
1082 return;
1083 }
1084
1085 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1086 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1087 free_nfs_cb_data(data);
1088 }
1089
1090 static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1091 {
1092 struct nfs_mcb_data *mdata = private_data;
1093 struct nfs_cb_data *data = mdata->data;
1094 struct nfs_context *nfs = data->nfs;
1095 WRITE3res *res;
1096
1097 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1098
1099 data->num_calls--;
1100
1101 if (status == RPC_STATUS_ERROR) {
1102 /* flag the failure but do not invoke callback until we have received all responses */
1103 data->error = 1;
1104 }
1105 if (status == RPC_STATUS_CANCEL) {
1106 /* flag the cancellation but do not invoke callback until we have received all responses */
1107 data->cancel = 1;
1108 }
1109
1110 if (status == RPC_STATUS_SUCCESS) {
1111 res = command_data;
1112 if (res->status != NFS3_OK) {
1113 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1114 data->error = 1;
1115 } else {
1116 if (res->WRITE3res_u.resok.count > 0) {
1117 if ((unsigned)data->max_offset < mdata->offset + res->WRITE3res_u.resok.count) {
1118 data->max_offset = mdata->offset + res->WRITE3res_u.resok.count;
1119 }
1120 }
1121 }
1122 }
1123
1124 if (data->num_calls > 0) {
1125 /* still waiting for more replies */
1126 free(mdata);
1127 return;
1128 }
1129
1130 if (data->error != 0) {
1131 data->cb(-EFAULT, nfs, command_data, data->private_data);
1132 free_nfs_cb_data(data);
1133 free(mdata);
1134 return;
1135 }
1136 if (data->cancel != 0) {
1137 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1138 free_nfs_cb_data(data);
1139 free(mdata);
1140 return;
1141 }
1142
1143 data->nfsfh->offset = data->max_offset;
1144 data->cb(data->max_offset - data->start_offset, nfs, NULL, data->private_data);
1145
1146 free_nfs_cb_data(data);
1147 free(mdata);
1148 }
1149
1150
1151 int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1152 {
1153 struct nfs_cb_data *data;
1154
1155 data = malloc(sizeof(struct nfs_cb_data));
1156 if (data == NULL) {
1157 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1158 return -1;
1159 }
1160 memset(data, 0, sizeof(struct nfs_cb_data));
1161 data->nfs = nfs;
1162 data->cb = cb;
1163 data->private_data = private_data;
1164 data->nfsfh = nfsfh;
1165
1166 nfsfh->offset = offset;
1167
1168 if (count <= nfs_get_writemax(nfs)) {
1169 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
1170 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1171 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1172 free_nfs_cb_data(data);
1173 return -1;
1174 }
1175 return 0;
1176 }
1177
1178 /* trying to write more than maximum server write size, we has to chop it up into smaller
1179 * chunks.
1180 * we send all writes in parallell so that performance is still good.
1181 */
1182 data->max_offset = offset;
1183 data->start_offset = offset;
1184
1185 while (count > 0) {
1186 uint64_t writecount = count;
1187 struct nfs_mcb_data *mdata;
1188
1189 if (writecount > nfs_get_writemax(nfs)) {
1190 writecount = nfs_get_writemax(nfs);
1191 }
1192
1193 mdata = malloc(sizeof(struct nfs_mcb_data));
1194 if (mdata == NULL) {
1195 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1196 return -1;
1197 }
1198 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1199 mdata->data = data;
1200 mdata->offset = offset;
1201 mdata->count = writecount;
1202
1203 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_mcb, &nfsfh->fh, &buf[offset - data->start_offset], offset, writecount, nfsfh->is_sync?FILE_SYNC:UNSTABLE, mdata) != 0) {
1204 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1205 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1206 free(mdata);
1207 return -1;
1208 }
1209
1210 count -= writecount;
1211 offset += writecount;
1212 data->num_calls++;
1213 }
1214
1215 return 0;
1216 }
1217
1218 /*
1219 * Async write()
1220 */
1221 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1222 {
1223 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1224 }
1225
1226
1227
1228
1229 /*
1230 * close
1231 */
1232
1233 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1234 {
1235 if (nfsfh->fh.data.data_val != NULL){
1236 free(nfsfh->fh.data.data_val);
1237 nfsfh->fh.data.data_val = NULL;
1238 }
1239 free(nfsfh);
1240
1241 cb(0, nfs, NULL, private_data);
1242 return 0;
1243 };
1244
1245
1246
1247
1248
1249 /*
1250 * Async fstat()
1251 */
1252 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1253 {
1254 struct nfs_cb_data *data;
1255
1256 data = malloc(sizeof(struct nfs_cb_data));
1257 if (data == NULL) {
1258 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1259 return -1;
1260 }
1261 memset(data, 0, sizeof(struct nfs_cb_data));
1262 data->nfs = nfs;
1263 data->cb = cb;
1264 data->private_data = private_data;
1265
1266 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
1267 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1268 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1269 free_nfs_cb_data(data);
1270 return -1;
1271 }
1272 return 0;
1273 }
1274
1275
1276
1277 /*
1278 * Async fsync()
1279 */
1280 static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1281 {
1282 struct nfs_cb_data *data = private_data;
1283 struct nfs_context *nfs = data->nfs;
1284 COMMIT3res *res;
1285
1286 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1287
1288 if (status == RPC_STATUS_ERROR) {
1289 data->cb(-EFAULT, nfs, command_data, data->private_data);
1290 free_nfs_cb_data(data);
1291 return;
1292 }
1293 if (status == RPC_STATUS_CANCEL) {
1294 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1295 free_nfs_cb_data(data);
1296 return;
1297 }
1298
1299 res = command_data;
1300 if (res->status != NFS3_OK) {
1301 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1302 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1303 free_nfs_cb_data(data);
1304 return;
1305 }
1306
1307 data->cb(0, nfs, NULL, data->private_data);
1308 free_nfs_cb_data(data);
1309 }
1310
1311 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1312 {
1313 struct nfs_cb_data *data;
1314
1315 data = malloc(sizeof(struct nfs_cb_data));
1316 if (data == NULL) {
1317 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1318 return -1;
1319 }
1320 memset(data, 0, sizeof(struct nfs_cb_data));
1321 data->nfs = nfs;
1322 data->cb = cb;
1323 data->private_data = private_data;
1324
1325 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1326 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1327 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1328 free_nfs_cb_data(data);
1329 return -1;
1330 }
1331 return 0;
1332 }
1333
1334
1335
1336
1337 /*
1338 * Async ftruncate()
1339 */
1340 static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1341 {
1342 struct nfs_cb_data *data = private_data;
1343 struct nfs_context *nfs = data->nfs;
1344 SETATTR3res *res;
1345
1346 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1347
1348 if (status == RPC_STATUS_ERROR) {
1349 data->cb(-EFAULT, nfs, command_data, data->private_data);
1350 free_nfs_cb_data(data);
1351 return;
1352 }
1353 if (status == RPC_STATUS_CANCEL) {
1354 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1355 free_nfs_cb_data(data);
1356 return;
1357 }
1358
1359 res = command_data;
1360 if (res->status != NFS3_OK) {
1361 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1362 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1363 free_nfs_cb_data(data);
1364 return;
1365 }
1366
1367 data->cb(0, nfs, NULL, data->private_data);
1368 free_nfs_cb_data(data);
1369 }
1370
1371 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
1372 {
1373 struct nfs_cb_data *data;
1374 SETATTR3args args;
1375
1376 data = malloc(sizeof(struct nfs_cb_data));
1377 if (data == NULL) {
1378 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1379 return -1;
1380 }
1381 memset(data, 0, sizeof(struct nfs_cb_data));
1382 data->nfs = nfs;
1383 data->cb = cb;
1384 data->private_data = private_data;
1385
1386 memset(&args, 0, sizeof(SETATTR3args));
1387 args.object.data.data_len = nfsfh->fh.data.data_len;
1388 args.object.data.data_val = nfsfh->fh.data.data_val;
1389 args.new_attributes.size.set_it = 1;
1390 args.new_attributes.size.set_size3_u.size = length;
1391
1392 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1393 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1394 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1395 free_nfs_cb_data(data);
1396 return -1;
1397 }
1398 return 0;
1399 }
1400
1401
1402 /*
1403 * Async truncate()
1404 */
1405 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1406 {
1407 uint64_t offset = data->continue_int;
1408 struct nfsfh nfsfh;
1409
1410 nfsfh.fh.data.data_val = data->fh.data.data_val;
1411 nfsfh.fh.data.data_len = data->fh.data.data_len;
1412
1413 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1414 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1415 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1416 free_nfs_cb_data(data);
1417 return -1;
1418 }
1419 free_nfs_cb_data(data);
1420 return 0;
1421 }
1422
1423 int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
1424 {
1425 uint64_t offset;
1426
1427 offset = length;
1428
1429 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1430 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1431 return -1;
1432 }
1433
1434 return 0;
1435 }
1436
1437
1438
1439
1440 /*
1441 * Async mkdir()
1442 */
1443 static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1444 {
1445 MKDIR3res *res;
1446 struct nfs_cb_data *data = private_data;
1447 struct nfs_context *nfs = data->nfs;
1448 char *str = data->continue_data;
1449
1450 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1451
1452 str = &str[strlen(str) + 1];
1453
1454 if (status == RPC_STATUS_ERROR) {
1455 data->cb(-EFAULT, nfs, command_data, data->private_data);
1456 free_nfs_cb_data(data);
1457 return;
1458 }
1459 if (status == RPC_STATUS_CANCEL) {
1460 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1461 free_nfs_cb_data(data);
1462 return;
1463 }
1464
1465 res = command_data;
1466 if (res->status != NFS3_OK) {
1467 rpc_set_error(nfs->rpc, "NFS: MKDIR of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1468 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1469 free_nfs_cb_data(data);
1470 return;
1471 }
1472
1473 data->cb(0, nfs, NULL, data->private_data);
1474 free_nfs_cb_data(data);
1475 }
1476
1477 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1478 {
1479 char *str = data->continue_data;
1480 MKDIR3args args;
1481
1482 str = &str[strlen(str) + 1];
1483
1484 memset(&args, 0, sizeof(MKDIR3args));
1485 args.where.dir.data.data_len = data->fh.data.data_len;
1486 args.where.dir.data.data_val = data->fh.data.data_val;
1487 args.where.name = str;
1488 args.attributes.mode.set_it = 1;
1489 args.attributes.mode.set_mode3_u.mode = 0755;
1490
1491 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
1492 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1493 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1494 free_nfs_cb_data(data);
1495 return -1;
1496 }
1497 return 0;
1498 }
1499
1500 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1501 {
1502 char *new_path;
1503 char *ptr;
1504
1505 new_path = strdup(path);
1506 if (new_path == NULL) {
1507 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1508 return -1;
1509 }
1510
1511 ptr = strrchr(new_path, '/');
1512 if (ptr == NULL) {
1513 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1514 return -1;
1515 }
1516 *ptr = 0;
1517
1518 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1519 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1520 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1521 return -1;
1522 }
1523
1524 return 0;
1525 }
1526
1527
1528
1529
1530
1531 /*
1532 * Async rmdir()
1533 */
1534 static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1535 {
1536 RMDIR3res *res;
1537 struct nfs_cb_data *data = private_data;
1538 struct nfs_context *nfs = data->nfs;
1539 char *str = data->continue_data;
1540
1541 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1542
1543 str = &str[strlen(str) + 1];
1544
1545 if (status == RPC_STATUS_ERROR) {
1546 data->cb(-EFAULT, nfs, command_data, data->private_data);
1547 free_nfs_cb_data(data);
1548 return;
1549 }
1550 if (status == RPC_STATUS_CANCEL) {
1551 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1552 free_nfs_cb_data(data);
1553 return;
1554 }
1555
1556 res = command_data;
1557 if (res->status != NFS3_OK) {
1558 rpc_set_error(nfs->rpc, "NFS: RMDIR of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1559 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1560 free_nfs_cb_data(data);
1561 return;
1562 }
1563
1564 data->cb(0, nfs, NULL, data->private_data);
1565 free_nfs_cb_data(data);
1566 }
1567
1568 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1569 {
1570 char *str = data->continue_data;
1571
1572 str = &str[strlen(str) + 1];
1573
1574 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1575 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1576 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1577 free_nfs_cb_data(data);
1578 return -1;
1579 }
1580 return 0;
1581 }
1582
1583 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1584 {
1585 char *new_path;
1586 char *ptr;
1587
1588 new_path = strdup(path);
1589 if (new_path == NULL) {
1590 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1591 return -1;
1592 }
1593
1594 ptr = strrchr(new_path, '/');
1595 if (ptr == NULL) {
1596 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1597 return -1;
1598 }
1599 *ptr = 0;
1600
1601 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1602 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
1603 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1604 return -1;
1605 }
1606
1607 return 0;
1608 }
1609
1610
1611
1612
1613 /*
1614 * Async creat()
1615 */
1616 static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1617 {
1618 LOOKUP3res *res;
1619 struct nfs_cb_data *data = private_data;
1620 struct nfs_context *nfs = data->nfs;
1621 struct nfsfh *nfsfh;
1622 char *str = data->continue_data;
1623
1624 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1625
1626 if (status == RPC_STATUS_ERROR) {
1627 data->cb(-EFAULT, nfs, command_data, data->private_data);
1628 free_nfs_cb_data(data);
1629 return;
1630 }
1631 if (status == RPC_STATUS_CANCEL) {
1632 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1633 free_nfs_cb_data(data);
1634 return;
1635 }
1636
1637 str = &str[strlen(str) + 1];
1638 res = command_data;
1639 if (res->status != NFS3_OK) {
1640 rpc_set_error(nfs->rpc, "NFS: CREATE of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1641 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1642
1643 return;
1644 }
1645
1646 nfsfh = malloc(sizeof(struct nfsfh));
1647 if (nfsfh == NULL) {
1648 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1649 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1650 free_nfs_cb_data(data);
1651 return;
1652 }
1653 memset(nfsfh, 0, sizeof(struct nfsfh));
1654
1655 /* steal the filehandle */
1656 nfsfh->fh.data.data_len = data->fh.data.data_len;
1657 nfsfh->fh.data.data_val = data->fh.data.data_val;
1658 data->fh.data.data_val = NULL;
1659
1660 data->cb(0, nfs, nfsfh, data->private_data);
1661 free_nfs_cb_data(data);
1662 }
1663
1664
1665
1666 static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1667 {
1668 CREATE3res *res;
1669 struct nfs_cb_data *data = private_data;
1670 struct nfs_context *nfs = data->nfs;
1671 char *str = data->continue_data;
1672
1673 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1674
1675 if (status == RPC_STATUS_ERROR) {
1676 data->cb(-EFAULT, nfs, command_data, data->private_data);
1677 free_nfs_cb_data(data);
1678 return;
1679 }
1680 if (status == RPC_STATUS_CANCEL) {
1681 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1682 free_nfs_cb_data(data);
1683 return;
1684 }
1685
1686 str = &str[strlen(str) + 1];
1687 res = command_data;
1688 if (res->status != NFS3_OK) {
1689 rpc_set_error(nfs->rpc, "NFS: CREATE of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1690 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1691
1692 return;
1693 }
1694
1695 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
1696 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
1697 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1698 free_nfs_cb_data(data);
1699 return;
1700 }
1701 return;
1702 }
1703
1704 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1705 {
1706 char *str = data->continue_data;
1707 CREATE3args args;
1708
1709 str = &str[strlen(str) + 1];
1710
1711
1712 memset(&args, 0, sizeof(CREATE3args));
1713 args.where.dir.data.data_len = data->fh.data.data_len;
1714 args.where.dir.data.data_val = data->fh.data.data_val;
1715 args.where.name = str;
1716 args.how.mode = UNCHECKED;
1717 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
1718 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
1719
1720 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
1721 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
1722 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1723 free_nfs_cb_data(data);
1724 return -1;
1725 }
1726 return 0;
1727 }
1728
1729 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1730 {
1731 char *new_path;
1732 char *ptr;
1733
1734 new_path = strdup(path);
1735 if (new_path == NULL) {
1736 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1737 return -1;
1738 }
1739
1740 ptr = strrchr(new_path, '/');
1741 if (ptr == NULL) {
1742 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1743 return -1;
1744 }
1745 *ptr = 0;
1746
1747 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1748 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
1749 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1750 return -1;
1751 }
1752
1753 return 0;
1754 }
1755
1756
1757
1758
1759 /*
1760 * Async unlink()
1761 */
1762 static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1763 {
1764 REMOVE3res *res;
1765 struct nfs_cb_data *data = private_data;
1766 struct nfs_context *nfs = data->nfs;
1767 char *str = data->continue_data;
1768
1769 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1770
1771 str = &str[strlen(str) + 1];
1772
1773 if (status == RPC_STATUS_ERROR) {
1774 data->cb(-EFAULT, nfs, command_data, data->private_data);
1775 free_nfs_cb_data(data);
1776 return;
1777 }
1778 if (status == RPC_STATUS_CANCEL) {
1779 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1780 free_nfs_cb_data(data);
1781 return;
1782 }
1783
1784 res = command_data;
1785 if (res->status != NFS3_OK) {
1786 rpc_set_error(nfs->rpc, "NFS: REMOVE of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1787 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1788 free_nfs_cb_data(data);
1789 return;
1790 }
1791
1792 data->cb(0, nfs, NULL, data->private_data);
1793 free_nfs_cb_data(data);
1794 }
1795
1796 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1797 {
1798 char *str = data->continue_data;
1799
1800 str = &str[strlen(str) + 1];
1801
1802 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
1803 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
1804 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1805 free_nfs_cb_data(data);
1806 return -1;
1807 }
1808 return 0;
1809 }
1810
1811 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1812 {
1813 char *new_path;
1814 char *ptr;
1815
1816 new_path = strdup(path);
1817 if (new_path == NULL) {
1818 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1819 return -1;
1820 }
1821
1822 ptr = strrchr(new_path, '/');
1823 if (ptr == NULL) {
1824 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1825 return -1;
1826 }
1827 *ptr = 0;
1828
1829 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1830 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
1831 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1832 return -1;
1833 }
1834
1835 return 0;
1836 }
1837
1838
1839 /*
1840 * Async mknod()
1841 */
1842 struct mknod_cb_data {
1843 char *path;
1844 int mode;
1845 int major;
1846 int minor;
1847 };
1848
1849 static void free_mknod_cb_data(void *ptr)
1850 {
1851 struct mknod_cb_data *data = ptr;
1852
1853 free(data->path);
1854 free(data);
1855 }
1856
1857 static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1858 {
1859 MKNOD3res *res;
1860 struct nfs_cb_data *data = private_data;
1861 struct nfs_context *nfs = data->nfs;
1862 char *str = data->continue_data;
1863
1864 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1865
1866 str = &str[strlen(str) + 1];
1867
1868 if (status == RPC_STATUS_ERROR) {
1869 data->cb(-EFAULT, nfs, command_data, data->private_data);
1870 free_nfs_cb_data(data);
1871 return;
1872 }
1873 if (status == RPC_STATUS_CANCEL) {
1874 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1875 free_nfs_cb_data(data);
1876 return;
1877 }
1878
1879 res = command_data;
1880 if (res->status != NFS3_OK) {
1881 rpc_set_error(nfs->rpc, "NFS: MKNOD of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1882 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1883 free_nfs_cb_data(data);
1884 return;
1885 }
1886
1887 data->cb(0, nfs, NULL, data->private_data);
1888 free_nfs_cb_data(data);
1889 }
1890
1891 static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1892 {
1893 struct mknod_cb_data *cb_data = data->continue_data;
1894 char *str = cb_data->path;
1895
1896 str = &str[strlen(str) + 1];
1897
1898 if (rpc_nfs_mknod_async(nfs->rpc, nfs_mknod_cb, &data->fh, str, cb_data->mode, cb_data->major, cb_data->minor, data) != 0) {
1899 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1900 free_nfs_cb_data(data);
1901 return -1;
1902 }
1903 return 0;
1904 }
1905
1906 int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
1907 {
1908 char *ptr;
1909 struct mknod_cb_data *cb_data;
1910
1911 cb_data = malloc(sizeof(struct mknod_cb_data));
1912 if (cb_data == NULL) {
1913 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
1914 return -1;
1915 }
1916
1917 cb_data->path = strdup(path);
1918 if (cb_data->path == NULL) {
1919 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1920 free(cb_data);
1921 return -1;
1922 }
1923
1924 ptr = strrchr(cb_data->path, '/');
1925 if (ptr == NULL) {
1926 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1927 return -1;
1928 }
1929 *ptr = 0;
1930
1931 cb_data->mode = mode;
1932 cb_data->major = major(dev);
1933 cb_data->minor = minor(dev);
1934
1935 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1936 if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
1937 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1938 free_mknod_cb_data(cb_data);
1939 return -1;
1940 }
1941
1942 return 0;
1943 }
1944
1945 /*
1946 * Async opendir()
1947 */
1948
1949 /* ReadDirPlus Emulation Callback data */
1950 struct rdpe_cb_data {
1951 int getattrcount;
1952 int status;
1953 struct nfs_cb_data *data;
1954 };
1955
1956 /* ReadDirPlus Emulation LOOKUP Callback data */
1957 struct rdpe_lookup_cb_data {
1958 struct rdpe_cb_data *rdpe_cb_data;
1959 struct nfsdirent *nfsdirent;
1960 };
1961
1962 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
1963 static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1964 {
1965 LOOKUP3res *res = command_data;
1966 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
1967 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
1968 struct nfs_cb_data *data = rdpe_cb_data->data;
1969 struct nfsdir *nfsdir = data->continue_data;
1970 struct nfs_context *nfs = data->nfs;
1971 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
1972
1973 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1974
1975 free(rdpe_lookup_cb_data);
1976
1977 rdpe_cb_data->getattrcount--;
1978
1979 if (status == RPC_STATUS_ERROR) {
1980 rdpe_cb_data->status = RPC_STATUS_ERROR;
1981 }
1982 if (status == RPC_STATUS_CANCEL) {
1983 rdpe_cb_data->status = RPC_STATUS_CANCEL;
1984 }
1985 if (status == RPC_STATUS_SUCCESS && res->status != NFS3_OK) {
1986 rdpe_cb_data->status = RPC_STATUS_ERROR;
1987 }
1988 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
1989 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
1990 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
1991
1992 nfsdirent->type = attributes->type;
1993 nfsdirent->mode = attributes->mode;
1994 nfsdirent->size = attributes->size;
1995
1996 nfsdirent->atime.tv_sec = attributes->atime.seconds;
1997 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
1998 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
1999 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
2000 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
2001 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
2002 }
2003 }
2004
2005 if (rdpe_cb_data->getattrcount == 0) {
2006 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
2007 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2008 nfs_free_nfsdir(nfsdir);
2009 } else {
2010 data->cb(0, nfs, nfsdir, data->private_data);
2011 }
2012 free(rdpe_cb_data);
2013
2014 data->continue_data = NULL;
2015 free_nfs_cb_data(data);
2016 }
2017 }
2018
2019 static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2020 {
2021 READDIR3res *res = command_data;
2022 struct nfs_cb_data *data = private_data;
2023 struct nfs_context *nfs = data->nfs;
2024 struct nfsdir *nfsdir = data->continue_data;
2025 struct nfsdirent *nfsdirent;
2026 struct entry3 *entry;
2027 uint64_t cookie;
2028 struct rdpe_cb_data *rdpe_cb_data;
2029
2030 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2031
2032 if (status == RPC_STATUS_ERROR) {
2033 data->cb(-EFAULT, nfs, command_data, data->private_data);
2034 nfs_free_nfsdir(nfsdir);
2035 data->continue_data = NULL;
2036 free_nfs_cb_data(data);
2037 return;
2038 }
2039
2040 if (status == RPC_STATUS_CANCEL) {
2041 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2042 nfs_free_nfsdir(nfsdir);
2043 data->continue_data = NULL;
2044 free_nfs_cb_data(data);
2045 return;
2046 }
2047
2048 if (res->status != NFS3_OK) {
2049 rpc_set_error(nfs->rpc, "NFS: READDIR of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2050 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2051 nfs_free_nfsdir(nfsdir);
2052 data->continue_data = NULL;
2053 free_nfs_cb_data(data);
2054 return;
2055 }
2056
2057 entry =res->READDIR3res_u.resok.reply.entries;
2058 while (entry != NULL) {
2059 nfsdirent = malloc(sizeof(struct nfsdirent));
2060 if (nfsdirent == NULL) {
2061 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2062 nfs_free_nfsdir(nfsdir);
2063 data->continue_data = NULL;
2064 free_nfs_cb_data(data);
2065 return;
2066 }
2067 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2068 nfsdirent->name = strdup(entry->name);
2069 if (nfsdirent->name == NULL) {
2070 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2071 nfs_free_nfsdir(nfsdir);
2072 data->continue_data = NULL;
2073 free_nfs_cb_data(data);
2074 return;
2075 }
2076 nfsdirent->inode = entry->fileid;
2077
2078 nfsdirent->next = nfsdir->entries;
2079 nfsdir->entries = nfsdirent;
2080
2081 cookie = entry->cookie;
2082 entry = entry->nextentry;
2083 }
2084
2085 if (res->READDIR3res_u.resok.reply.eof == 0) {
2086 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 8192, data) != 0) {
2087 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2088 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2089 nfs_free_nfsdir(nfsdir);
2090 data->continue_data = NULL;
2091 free_nfs_cb_data(data);
2092 return;
2093 }
2094 return;
2095 }
2096
2097 /* steal the dirhandle */
2098 nfsdir->current = nfsdir->entries;
2099
2100 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
2101 rdpe_cb_data->getattrcount = 0;
2102 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
2103 rdpe_cb_data->data = data;
2104 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
2105 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
2106
2107 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
2108 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
2109 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
2110
2111 if (rpc_nfs_lookup_async(nfs->rpc, nfs_opendir3_cb, &data->fh, nfsdirent->name, rdpe_lookup_cb_data) != 0) {
2112 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
2113
2114 /* if we have already commands in flight, we cant just stop, we have to wait for the
2115 * commands in flight to complete
2116 */
2117 if (rdpe_cb_data->getattrcount > 0) {
2118 rdpe_cb_data->status = RPC_STATUS_ERROR;
2119 free(rdpe_lookup_cb_data);
2120 return;
2121 }
2122
2123 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2124 nfs_free_nfsdir(nfsdir);
2125 data->continue_data = NULL;
2126 free_nfs_cb_data(data);
2127 free(rdpe_lookup_cb_data);
2128 free(rdpe_cb_data);
2129 return;
2130 }
2131 rdpe_cb_data->getattrcount++;
2132 }
2133 }
2134
2135
2136 static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2137 {
2138 READDIRPLUS3res *res = command_data;
2139 struct nfs_cb_data *data = private_data;
2140 struct nfs_context *nfs = data->nfs;
2141 struct nfsdir *nfsdir = data->continue_data;
2142 struct entryplus3 *entry;
2143 uint64_t cookie;
2144
2145 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2146
2147 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
2148 cookieverf3 cv;
2149
2150 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2151 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2152 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2153 nfs_free_nfsdir(nfsdir);
2154 data->continue_data = NULL;
2155 free_nfs_cb_data(data);
2156 return;
2157 }
2158 return;
2159 }
2160
2161 if (status == RPC_STATUS_CANCEL) {
2162 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2163 nfs_free_nfsdir(nfsdir);
2164 data->continue_data = NULL;
2165 free_nfs_cb_data(data);
2166 return;
2167 }
2168
2169 if (res->status != NFS3_OK) {
2170 rpc_set_error(nfs->rpc, "NFS: READDIRPLUS of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2171 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2172 nfs_free_nfsdir(nfsdir);
2173 data->continue_data = NULL;
2174 free_nfs_cb_data(data);
2175 return;
2176 }
2177
2178 entry =res->READDIRPLUS3res_u.resok.reply.entries;
2179 while (entry != NULL) {
2180 struct nfsdirent *nfsdirent;
2181
2182 nfsdirent = malloc(sizeof(struct nfsdirent));
2183 if (nfsdirent == NULL) {
2184 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2185 nfs_free_nfsdir(nfsdir);
2186 data->continue_data = NULL;
2187 free_nfs_cb_data(data);
2188 return;
2189 }
2190 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2191 nfsdirent->name = strdup(entry->name);
2192 if (nfsdirent->name == NULL) {
2193 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2194 nfs_free_nfsdir(nfsdir);
2195 data->continue_data = NULL;
2196 free_nfs_cb_data(data);
2197 return;
2198 }
2199 nfsdirent->inode = entry->fileid;
2200 if (entry->name_attributes.attributes_follow) {
2201 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
2202 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
2203 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
2204
2205 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
2206 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
2207 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
2208 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
2209 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
2210 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
2211 }
2212
2213 nfsdirent->next = nfsdir->entries;
2214 nfsdir->entries = nfsdirent;
2215
2216 cookie = entry->cookie;
2217 entry = entry->nextentry;
2218 }
2219
2220 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
2221 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIRPLUS3res_u.resok.cookieverf, 8192, data) != 0) {
2222 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2223 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2224 nfs_free_nfsdir(nfsdir);
2225 data->continue_data = NULL;
2226 free_nfs_cb_data(data);
2227 return;
2228 }
2229 return;
2230 }
2231
2232 /* steal the dirhandle */
2233 data->continue_data = NULL;
2234 nfsdir->current = nfsdir->entries;
2235
2236 data->cb(0, nfs, nfsdir, data->private_data);
2237 free_nfs_cb_data(data);
2238 }
2239
2240 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2241 {
2242 cookieverf3 cv;
2243
2244 memset(cv, 0, sizeof(cookieverf3));
2245 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2246 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2247 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2248 free_nfs_cb_data(data);
2249 return -1;
2250 }
2251 return 0;
2252 }
2253
2254 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2255 {
2256 struct nfsdir *nfsdir;
2257
2258 nfsdir = malloc(sizeof(struct nfsdir));
2259 if (nfsdir == NULL) {
2260 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
2261 return -1;
2262 }
2263 memset(nfsdir, 0, sizeof(struct nfsdir));
2264
2265 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
2266 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2267 return -1;
2268 }
2269
2270 return 0;
2271 }
2272
2273
2274 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2275 {
2276 struct nfsdirent *nfsdirent = nfsdir->current;
2277
2278 if (nfsdir->current != NULL) {
2279 nfsdir->current = nfsdir->current->next;
2280 }
2281 return nfsdirent;
2282 }
2283
2284
2285 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2286 {
2287 nfs_free_nfsdir(nfsdir);
2288 }
2289
2290
2291
2292
2293
2294
2295
2296 /*
2297 * Async lseek()
2298 */
2299 struct lseek_cb_data {
2300 struct nfs_context *nfs;
2301 struct nfsfh *nfsfh;
2302 uint64_t offset;
2303 nfs_cb cb;
2304 void *private_data;
2305 };
2306
2307 static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2308 {
2309 GETATTR3res *res;
2310 struct lseek_cb_data *data = private_data;
2311 struct nfs_context *nfs = data->nfs;
2312
2313 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2314
2315 if (status == RPC_STATUS_ERROR) {
2316 data->cb(-EFAULT, nfs, command_data, data->private_data);
2317 free(data);
2318 return;
2319 }
2320 if (status == RPC_STATUS_CANCEL) {
2321 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2322 free(data);
2323 return;
2324 }
2325
2326 res = command_data;
2327 if (res->status != NFS3_OK) {
2328 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2329 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2330 free(data);
2331 return;
2332 }
2333
2334 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
2335 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
2336 free(data);
2337 }
2338
2339 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
2340 {
2341 struct lseek_cb_data *data;
2342
2343 if (whence == SEEK_SET) {
2344 nfsfh->offset = offset;
2345 cb(0, nfs, &nfsfh->offset, private_data);
2346 return 0;
2347 }
2348 if (whence == SEEK_CUR) {
2349 nfsfh->offset += offset;
2350 cb(0, nfs, &nfsfh->offset, private_data);
2351 return 0;
2352 }
2353
2354 data = malloc(sizeof(struct lseek_cb_data));
2355 if (data == NULL) {
2356 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
2357 return -1;
2358 }
2359
2360 data->nfs = nfs;
2361 data->nfsfh = nfsfh;
2362 data->offset = offset;
2363 data->cb = cb;
2364 data->private_data = private_data;
2365
2366 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
2367 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
2368 free(data);
2369 return -1;
2370 }
2371 return 0;
2372 }
2373
2374
2375
2376
2377 /*
2378 * Async statvfs()
2379 */
2380 static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2381 {
2382 FSSTAT3res *res;
2383 struct nfs_cb_data *data = private_data;
2384 struct nfs_context *nfs = data->nfs;
2385 struct statvfs svfs;
2386
2387 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2388
2389 if (status == RPC_STATUS_ERROR) {
2390 data->cb(-EFAULT, nfs, command_data, data->private_data);
2391 free_nfs_cb_data(data);
2392 return;
2393 }
2394 if (status == RPC_STATUS_CANCEL) {
2395 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2396 free_nfs_cb_data(data);
2397 return;
2398 }
2399
2400 res = command_data;
2401 if (res->status != NFS3_OK) {
2402 rpc_set_error(nfs->rpc, "NFS: FSSTAT of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2403 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2404 free_nfs_cb_data(data);
2405 return;
2406 }
2407
2408 svfs.f_bsize = 4096;
2409 svfs.f_frsize = 4096;
2410 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
2411 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
2412 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
2413 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
2414 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
2415 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
2416 svfs.f_fsid = 0;
2417 svfs.f_flag = 0;
2418 svfs.f_namemax = 256;
2419
2420 data->cb(0, nfs, &svfs, data->private_data);
2421 free_nfs_cb_data(data);
2422 }
2423
2424 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2425 {
2426 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
2427 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
2428 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2429 free_nfs_cb_data(data);
2430 return -1;
2431 }
2432 return 0;
2433 }
2434
2435 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2436 {
2437 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
2438 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2439 return -1;
2440 }
2441
2442 return 0;
2443 }
2444
2445
2446
2447
2448 /*
2449 * Async readlink()
2450 */
2451 static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2452 {
2453 READLINK3res *res;
2454 struct nfs_cb_data *data = private_data;
2455 struct nfs_context *nfs = data->nfs;
2456
2457 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2458
2459 if (status == RPC_STATUS_ERROR) {
2460 data->cb(-EFAULT, nfs, command_data, data->private_data);
2461 free_nfs_cb_data(data);
2462 return;
2463 }
2464 if (status == RPC_STATUS_CANCEL) {
2465 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2466 free_nfs_cb_data(data);
2467 return;
2468 }
2469
2470 res = command_data;
2471 if (res->status != NFS3_OK) {
2472 rpc_set_error(nfs->rpc, "NFS: READLINK of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2473 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2474 free_nfs_cb_data(data);
2475 return;
2476 }
2477
2478
2479 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
2480 free_nfs_cb_data(data);
2481 }
2482
2483 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2484 {
2485 READLINK3args args;
2486
2487 args.symlink.data.data_len = data->fh.data.data_len;
2488 args.symlink.data.data_val = data->fh.data.data_val;
2489
2490 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
2491 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
2492 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2493 free_nfs_cb_data(data);
2494 return -1;
2495 }
2496 return 0;
2497 }
2498
2499 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2500 {
2501 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
2502 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2503 return -1;
2504 }
2505
2506 return 0;
2507 }
2508
2509
2510
2511
2512 /*
2513 * Async chmod()
2514 */
2515 static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2516 {
2517 struct nfs_cb_data *data = private_data;
2518 struct nfs_context *nfs = data->nfs;
2519 SETATTR3res *res;
2520
2521 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2522
2523 if (status == RPC_STATUS_ERROR) {
2524 data->cb(-EFAULT, nfs, command_data, data->private_data);
2525 free_nfs_cb_data(data);
2526 return;
2527 }
2528 if (status == RPC_STATUS_CANCEL) {
2529 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2530 free_nfs_cb_data(data);
2531 return;
2532 }
2533
2534 res = command_data;
2535 if (res->status != NFS3_OK) {
2536 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2537 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2538 free_nfs_cb_data(data);
2539 return;
2540 }
2541
2542 data->cb(0, nfs, NULL, data->private_data);
2543 free_nfs_cb_data(data);
2544 }
2545
2546 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2547 {
2548 SETATTR3args args;
2549
2550 memset(&args, 0, sizeof(SETATTR3args));
2551 args.object.data.data_len = data->fh.data.data_len;
2552 args.object.data.data_val = data->fh.data.data_val;
2553 args.new_attributes.mode.set_it = 1;
2554 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2555
2556 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2557 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2558 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2559 free_nfs_cb_data(data);
2560 return -1;
2561 }
2562 return 0;
2563 }
2564
2565
2566 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2567 {
2568 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
2569 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2570 return -1;
2571 }
2572
2573 return 0;
2574 }
2575
2576 /*
2577 * Async fchmod()
2578 */
2579 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2580 {
2581 struct nfs_cb_data *data;
2582
2583 data = malloc(sizeof(struct nfs_cb_data));
2584 if (data == NULL) {
2585 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
2586 return -1;
2587 }
2588 memset(data, 0, sizeof(struct nfs_cb_data));
2589 data->nfs = nfs;
2590 data->cb = cb;
2591 data->private_data = private_data;
2592 data->continue_int = mode;
2593 data->fh.data.data_len = nfsfh->fh.data.data_len;
2594 data->fh.data.data_val = malloc(data->fh.data.data_len);
2595 if (data->fh.data.data_val == NULL) {
2596 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2597 free_nfs_cb_data(data);
2598 return -1;
2599 }
2600 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2601
2602 if (nfs_chmod_continue_internal(nfs, data) != 0) {
2603 free_nfs_cb_data(data);
2604 return -1;
2605 }
2606
2607 return 0;
2608 }
2609
2610
2611
2612 /*
2613 * Async chown()
2614 */
2615 static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2616 {
2617 struct nfs_cb_data *data = private_data;
2618 struct nfs_context *nfs = data->nfs;
2619 SETATTR3res *res;
2620
2621 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2622
2623 if (status == RPC_STATUS_ERROR) {
2624 data->cb(-EFAULT, nfs, command_data, data->private_data);
2625 free_nfs_cb_data(data);
2626 return;
2627 }
2628 if (status == RPC_STATUS_CANCEL) {
2629 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2630 free_nfs_cb_data(data);
2631 return;
2632 }
2633
2634 res = command_data;
2635 if (res->status != NFS3_OK) {
2636 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2637 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2638 free_nfs_cb_data(data);
2639 return;
2640 }
2641
2642 data->cb(0, nfs, NULL, data->private_data);
2643 free_nfs_cb_data(data);
2644 }
2645
2646 struct nfs_chown_data {
2647 uid_t uid;
2648 gid_t gid;
2649 };
2650
2651 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2652 {
2653 SETATTR3args args;
2654 struct nfs_chown_data *chown_data = data->continue_data;
2655
2656 memset(&args, 0, sizeof(SETATTR3args));
2657 args.object.data.data_len = data->fh.data.data_len;
2658 args.object.data.data_val = data->fh.data.data_val;
2659 if (chown_data->uid != (uid_t)-1) {
2660 args.new_attributes.uid.set_it = 1;
2661 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2662 }
2663 if (chown_data->gid != (gid_t)-1) {
2664 args.new_attributes.gid.set_it = 1;
2665 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2666 }
2667
2668 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2669 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2670 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2671 free_nfs_cb_data(data);
2672 return -1;
2673 }
2674 return 0;
2675 }
2676
2677
2678 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
2679 {
2680 struct nfs_chown_data *chown_data;
2681
2682 chown_data = malloc(sizeof(struct nfs_chown_data));
2683 if (chown_data == NULL) {
2684 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2685 return -1;
2686 }
2687
2688 chown_data->uid = uid;
2689 chown_data->gid = gid;
2690
2691 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
2692 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2693 return -1;
2694 }
2695
2696 return 0;
2697 }
2698
2699
2700 /*
2701 * Async fchown()
2702 */
2703 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
2704 {
2705 struct nfs_cb_data *data;
2706 struct nfs_chown_data *chown_data;
2707
2708 chown_data = malloc(sizeof(struct nfs_chown_data));
2709 if (chown_data == NULL) {
2710 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2711 return -1;
2712 }
2713
2714 chown_data->uid = uid;
2715 chown_data->gid = gid;
2716
2717
2718 data = malloc(sizeof(struct nfs_cb_data));
2719 if (data == NULL) {
2720 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
2721 return -1;
2722 }
2723 memset(data, 0, sizeof(struct nfs_cb_data));
2724 data->nfs = nfs;
2725 data->cb = cb;
2726 data->private_data = private_data;
2727 data->continue_data = chown_data;
2728 data->fh.data.data_len = nfsfh->fh.data.data_len;
2729 data->fh.data.data_val = malloc(data->fh.data.data_len);
2730 if (data->fh.data.data_val == NULL) {
2731 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2732 free_nfs_cb_data(data);
2733 return -1;
2734 }
2735 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2736
2737
2738 if (nfs_chown_continue_internal(nfs, data) != 0) {
2739 free_nfs_cb_data(data);
2740 return -1;
2741 }
2742
2743 return 0;
2744 }
2745
2746
2747
2748
2749
2750 /*
2751 * Async utimes()
2752 */
2753 static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2754 {
2755 struct nfs_cb_data *data = private_data;
2756 struct nfs_context *nfs = data->nfs;
2757 SETATTR3res *res;
2758
2759 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2760
2761 if (status == RPC_STATUS_ERROR) {
2762 data->cb(-EFAULT, nfs, command_data, data->private_data);
2763 free_nfs_cb_data(data);
2764 return;
2765 }
2766 if (status == RPC_STATUS_CANCEL) {
2767 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2768 free_nfs_cb_data(data);
2769 return;
2770 }
2771
2772 res = command_data;
2773 if (res->status != NFS3_OK) {
2774 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2775 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2776 free_nfs_cb_data(data);
2777 return;
2778 }
2779
2780 data->cb(0, nfs, NULL, data->private_data);
2781 free_nfs_cb_data(data);
2782 }
2783
2784 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2785 {
2786 SETATTR3args args;
2787 struct timeval *utimes_data = data->continue_data;
2788
2789 memset(&args, 0, sizeof(SETATTR3args));
2790 args.object.data.data_len = data->fh.data.data_len;
2791 args.object.data.data_val = data->fh.data.data_val;
2792 if (utimes_data != NULL) {
2793 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
2794 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
2795 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
2796 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
2797 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
2798 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
2799 } else {
2800 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
2801 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
2802 }
2803
2804 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
2805 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2806 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2807 free_nfs_cb_data(data);
2808 return -1;
2809 }
2810 return 0;
2811 }
2812
2813
2814 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
2815 {
2816 struct timeval *new_times = NULL;
2817
2818 if (times != NULL) {
2819 new_times = malloc(sizeof(struct timeval)*2);
2820 if (new_times == NULL) {
2821 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2822 return -1;
2823 }
2824
2825 memcpy(new_times, times, sizeof(struct timeval)*2);
2826 }
2827
2828 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2829 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2830 return -1;
2831 }
2832
2833 return 0;
2834 }
2835
2836 /*
2837 * Async utime()
2838 */
2839 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
2840 {
2841 struct timeval *new_times = NULL;
2842
2843 if (times != NULL) {
2844 new_times = malloc(sizeof(struct timeval)*2);
2845 if (new_times == NULL) {
2846 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2847 return -1;
2848 }
2849
2850 new_times[0].tv_sec = times->actime;
2851 new_times[0].tv_usec = 0;
2852 new_times[1].tv_sec = times->modtime;
2853 new_times[1].tv_usec = 0;
2854 }
2855
2856 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2857 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2858 return -1;
2859 }
2860
2861 return 0;
2862 }
2863
2864
2865
2866
2867
2868 /*
2869 * Async access()
2870 */
2871 static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2872 {
2873 ACCESS3res *res;
2874 struct nfs_cb_data *data = private_data;
2875 struct nfs_context *nfs = data->nfs;
2876 unsigned int nfsmode = 0;
2877
2878 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2879
2880 if (status == RPC_STATUS_ERROR) {
2881 data->cb(-EFAULT, nfs, command_data, data->private_data);
2882 free_nfs_cb_data(data);
2883 return;
2884 }
2885 if (status == RPC_STATUS_CANCEL) {
2886 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2887 free_nfs_cb_data(data);
2888 return;
2889 }
2890
2891 res = command_data;
2892 if (res->status != NFS3_OK) {
2893 rpc_set_error(nfs->rpc, "NFS: ACCESS of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2894 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2895 free_nfs_cb_data(data);
2896 return;
2897 }
2898
2899 if (data->continue_int & R_OK) {
2900 nfsmode |= ACCESS3_READ;
2901 }
2902 if (data->continue_int & W_OK) {
2903 nfsmode |= ACCESS3_MODIFY;
2904 }
2905 if (data->continue_int & X_OK) {
2906 nfsmode |= ACCESS3_EXECUTE;
2907 }
2908
2909 if (res->ACCESS3res_u.resok.access != nfsmode) {
2910 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
2911 nfsmode&ACCESS3_READ?'r':'-',
2912 nfsmode&ACCESS3_MODIFY?'w':'-',
2913 nfsmode&ACCESS3_EXECUTE?'x':'-',
2914 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
2915 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
2916 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
2917 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
2918 free_nfs_cb_data(data);
2919 return;
2920 }
2921
2922 data->cb(0, nfs, NULL, data->private_data);
2923 free_nfs_cb_data(data);
2924 }
2925
2926 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2927 {
2928 int nfsmode = 0;
2929
2930 if (data->continue_int & R_OK) {
2931 nfsmode |= ACCESS3_READ;
2932 }
2933 if (data->continue_int & W_OK) {
2934 nfsmode |= ACCESS3_MODIFY;
2935 }
2936 if (data->continue_int & X_OK) {
2937 nfsmode |= ACCESS3_EXECUTE;
2938 }
2939
2940 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
2941 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
2942 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2943 free_nfs_cb_data(data);
2944 return -1;
2945 }
2946 return 0;
2947 }
2948
2949 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2950 {
2951 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
2952 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2953 return -1;
2954 }
2955
2956 return 0;
2957 }
2958
2959
2960
2961 /*
2962 * Async symlink()
2963 */
2964 struct nfs_symlink_data {
2965 char *oldpath;
2966 char *newpathparent;
2967 char *newpathobject;
2968 };
2969
2970 static void free_nfs_symlink_data(void *mem)
2971 {
2972 struct nfs_symlink_data *data = mem;
2973
2974 if (data->oldpath != NULL) {
2975 free(data->oldpath);
2976 }
2977 if (data->newpathparent != NULL) {
2978 free(data->newpathparent);
2979 }
2980 if (data->newpathobject != NULL) {
2981 free(data->newpathobject);
2982 }
2983 free(data);
2984 }
2985
2986 static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2987 {
2988 SYMLINK3res *res;
2989 struct nfs_cb_data *data = private_data;
2990 struct nfs_context *nfs = data->nfs;
2991 struct nfs_symlink_data *symlink_data = data->continue_data;
2992
2993 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2994
2995 if (status == RPC_STATUS_ERROR) {
2996 data->cb(-EFAULT, nfs, command_data, data->private_data);
2997 free_nfs_cb_data(data);
2998 return;
2999 }
3000 if (status == RPC_STATUS_CANCEL) {
3001 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3002 free_nfs_cb_data(data);
3003 return;
3004 }
3005
3006 res = command_data;
3007 if (res->status != NFS3_OK) {
3008 rpc_set_error(nfs->rpc, "NFS: SYMLINK %s/%s -> %s failed with %s(%d)", symlink_data->newpathparent, symlink_data->newpathobject, symlink_data->oldpath, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3009 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3010 free_nfs_cb_data(data);
3011 return;
3012 }
3013
3014 data->cb(0, nfs, NULL, data->private_data);
3015 free_nfs_cb_data(data);
3016 }
3017
3018 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3019 {
3020 struct nfs_symlink_data *symlink_data = data->continue_data;
3021 SYMLINK3args sa;
3022
3023 memset(&sa, 0, sizeof(SYMLINK3args));
3024 sa.where.dir.data.data_len = data->fh.data.data_len;
3025 sa.where.dir.data.data_val = data->fh.data.data_val;
3026 sa.where.name = symlink_data->newpathobject;
3027 sa.symlink.symlink_attributes.mode.set_it = 1;
3028 sa.symlink.symlink_attributes.mode.set_mode3_u.mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH;
3029 sa.symlink.symlink_data = symlink_data->oldpath;
3030
3031 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &sa, data) != 0) {
3032 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
3033 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3034 free_nfs_cb_data(data);
3035 return -1;
3036 }
3037 return 0;
3038 }
3039
3040 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3041 {
3042 char *ptr;
3043 struct nfs_symlink_data *symlink_data;
3044
3045 symlink_data = malloc(sizeof(struct nfs_symlink_data));
3046 if (symlink_data == NULL) {
3047 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
3048 return -1;
3049 }
3050 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
3051
3052 symlink_data->oldpath = strdup(oldpath);
3053 if (symlink_data->oldpath == NULL) {
3054 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3055 free_nfs_symlink_data(symlink_data);
3056 return -1;
3057 }
3058
3059 symlink_data->newpathparent = strdup(newpath);
3060 if (symlink_data->newpathparent == NULL) {
3061 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3062 free_nfs_symlink_data(symlink_data);
3063 return -1;
3064 }
3065
3066 ptr = strrchr(symlink_data->newpathparent, '/');
3067 if (ptr == NULL) {
3068 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3069 free_nfs_symlink_data(symlink_data);
3070 return -1;
3071 }
3072 *ptr = 0;
3073 ptr++;
3074
3075 symlink_data->newpathobject = strdup(ptr);
3076 if (symlink_data->newpathobject == NULL) {
3077 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3078 free_nfs_symlink_data(symlink_data);
3079 return -1;
3080 }
3081
3082 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
3083 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3084 return -1;
3085 }
3086
3087 return 0;
3088 }
3089
3090
3091
3092 /*
3093 * Async rename()
3094 */
3095 struct nfs_rename_data {
3096 char *oldpath;
3097 char *oldobject;
3098 struct nfs_fh3 olddir;
3099 char *newpath;
3100 char *newobject;
3101 struct nfs_fh3 newdir;
3102 };
3103
3104 static void free_nfs_rename_data(void *mem)
3105 {
3106 struct nfs_rename_data *data = mem;
3107
3108 if (data->oldpath != NULL) {
3109 free(data->oldpath);
3110 }
3111 if (data->olddir.data.data_val != NULL) {
3112 free(data->olddir.data.data_val);
3113 }
3114 if (data->newpath != NULL) {
3115 free(data->newpath);
3116 }
3117 if (data->newdir.data.data_val != NULL) {
3118 free(data->newdir.data.data_val);
3119 }
3120 free(data);
3121 }
3122
3123 static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3124 {
3125 RENAME3res *res;
3126 struct nfs_cb_data *data = private_data;
3127 struct nfs_context *nfs = data->nfs;
3128 struct nfs_rename_data *rename_data = data->continue_data;
3129
3130 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3131
3132 if (status == RPC_STATUS_ERROR) {
3133 data->cb(-EFAULT, nfs, command_data, data->private_data);
3134 free_nfs_cb_data(data);
3135 return;
3136 }
3137 if (status == RPC_STATUS_CANCEL) {
3138 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3139 free_nfs_cb_data(data);
3140 return;
3141 }
3142
3143 res = command_data;
3144 if (res->status != NFS3_OK) {
3145 rpc_set_error(nfs->rpc, "NFS: RENAME %s/%s -> %s/%s failed with %s(%d)", rename_data->oldpath, rename_data->oldobject, rename_data->newpath, rename_data->newobject, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3146 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3147 free_nfs_cb_data(data);
3148 return;
3149 }
3150
3151 data->cb(0, nfs, NULL, data->private_data);
3152 free_nfs_cb_data(data);
3153 }
3154
3155 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3156 {
3157 struct nfs_rename_data *rename_data = data->continue_data;
3158
3159 /* steal the filehandle */
3160 rename_data->newdir.data.data_len = data->fh.data.data_len;
3161 rename_data->newdir.data.data_val = data->fh.data.data_val;
3162 data->fh.data.data_val = NULL;
3163
3164 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
3165 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
3166 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3167 free_nfs_cb_data(data);
3168 return -1;
3169 }
3170 return 0;
3171 }
3172
3173
3174 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3175 {
3176 struct nfs_rename_data *rename_data = data->continue_data;
3177
3178 /* steal the filehandle */
3179 rename_data->olddir.data.data_len = data->fh.data.data_len;
3180 rename_data->olddir.data.data_val = data->fh.data.data_val;
3181 data->fh.data.data_val = NULL;
3182
3183 if (nfs_lookuppath_async(nfs, rename_data->newpath, data->cb, data->private_data, nfs_rename_continue_2_internal, rename_data, free_nfs_rename_data, 0) != 0) {
3184 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
3185 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3186 free_nfs_cb_data(data);
3187 return -1;
3188 }
3189 data->continue_data = NULL;
3190 free_nfs_cb_data(data);
3191
3192 return 0;
3193 }
3194
3195
3196 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3197 {
3198 char *ptr;
3199 struct nfs_rename_data *rename_data;
3200
3201 rename_data = malloc(sizeof(struct nfs_rename_data));
3202 if (rename_data == NULL) {
3203 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
3204 return -1;
3205 }
3206 memset(rename_data, 0, sizeof(struct nfs_rename_data));
3207
3208 rename_data->oldpath = strdup(oldpath);
3209 if (rename_data->oldpath == NULL) {
3210 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3211 free_nfs_rename_data(rename_data);
3212 return -1;
3213 }
3214 ptr = strrchr(rename_data->oldpath, '/');
3215 if (ptr == NULL) {
3216 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3217 free_nfs_rename_data(rename_data);
3218 return -1;
3219 }
3220 *ptr = 0;
3221 ptr++;
3222 rename_data->oldobject = ptr;
3223
3224
3225 rename_data->newpath = strdup(newpath);
3226 if (rename_data->newpath == NULL) {
3227 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3228 free_nfs_rename_data(rename_data);
3229 return -1;
3230 }
3231 ptr = strrchr(rename_data->newpath, '/');
3232 if (ptr == NULL) {
3233 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3234 free_nfs_rename_data(rename_data);
3235 return -1;
3236 }
3237 *ptr = 0;
3238 ptr++;
3239 rename_data->newobject = ptr;
3240
3241
3242 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
3243 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3244 return -1;
3245 }
3246
3247 return 0;
3248 }
3249
3250
3251 /*
3252 * Async link()
3253 */
3254 struct nfs_link_data {
3255 char *oldpath;
3256 struct nfs_fh3 oldfh;
3257 char *newpath;
3258 char *newobject;
3259 struct nfs_fh3 newdir;
3260 };
3261
3262 static void free_nfs_link_data(void *mem)
3263 {
3264 struct nfs_link_data *data = mem;
3265
3266 if (data->oldpath != NULL) {
3267 free(data->oldpath);
3268 }
3269 if (data->oldfh.data.data_val != NULL) {
3270 free(data->oldfh.data.data_val);
3271 }
3272 if (data->newpath != NULL) {
3273 free(data->newpath);
3274 }
3275 if (data->newdir.data.data_val != NULL) {
3276 free(data->newdir.data.data_val);
3277 }
3278 free(data);
3279 }
3280
3281 static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3282 {
3283 LINK3res *res;
3284 struct nfs_cb_data *data = private_data;
3285 struct nfs_context *nfs = data->nfs;
3286 struct nfs_link_data *link_data = data->continue_data;
3287
3288 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3289
3290 if (status == RPC_STATUS_ERROR) {
3291 data->cb(-EFAULT, nfs, command_data, data->private_data);
3292 free_nfs_cb_data(data);
3293 return;
3294 }
3295 if (status == RPC_STATUS_CANCEL) {
3296 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3297 free_nfs_cb_data(data);
3298 return;
3299 }
3300
3301 res = command_data;
3302 if (res->status != NFS3_OK) {
3303 rpc_set_error(nfs->rpc, "NFS: LINK %s -> %s/%s failed with %s(%d)", link_data->oldpath, link_data->newpath, link_data->newobject, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3304 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3305 free_nfs_cb_data(data);
3306 return;
3307 }
3308
3309 data->cb(0, nfs, NULL, data->private_data);
3310 free_nfs_cb_data(data);
3311 }
3312
3313 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3314 {
3315 struct nfs_link_data *link_data = data->continue_data;
3316
3317 /* steal the filehandle */
3318 link_data->newdir.data.data_len = data->fh.data.data_len;
3319 link_data->newdir.data.data_val = data->fh.data.data_val;
3320 data->fh.data.data_val = NULL;
3321
3322 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
3323 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
3324 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3325 free_nfs_cb_data(data);
3326 return -1;
3327 }
3328 return 0;
3329 }
3330
3331
3332 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3333 {
3334 struct nfs_link_data *link_data = data->continue_data;
3335
3336 /* steal the filehandle */
3337 link_data->oldfh.data.data_len = data->fh.data.data_len;
3338 link_data->oldfh.data.data_val = data->fh.data.data_val;
3339 data->fh.data.data_val = NULL;
3340
3341 if (nfs_lookuppath_async(nfs, link_data->newpath, data->cb, data->private_data, nfs_link_continue_2_internal, link_data, free_nfs_link_data, 0) != 0) {
3342 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
3343 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3344 free_nfs_cb_data(data);
3345 return -1;
3346 }
3347 data->continue_data = NULL;
3348 free_nfs_cb_data(data);
3349
3350 return 0;
3351 }
3352
3353
3354 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3355 {
3356 char *ptr;
3357 struct nfs_link_data *link_data;
3358
3359 link_data = malloc(sizeof(struct nfs_link_data));
3360 if (link_data == NULL) {
3361 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
3362 return -1;
3363 }
3364 memset(link_data, 0, sizeof(struct nfs_link_data));
3365
3366 link_data->oldpath = strdup(oldpath);
3367 if (link_data->oldpath == NULL) {
3368 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3369 free_nfs_link_data(link_data);
3370 return -1;
3371 }
3372
3373 link_data->newpath = strdup(newpath);
3374 if (link_data->newpath == NULL) {
3375 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3376 free_nfs_link_data(link_data);
3377 return -1;
3378 }
3379 ptr = strrchr(link_data->newpath, '/');
3380 if (ptr == NULL) {
3381 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3382 free_nfs_link_data(link_data);
3383 return -1;
3384 }
3385 *ptr = 0;
3386 ptr++;
3387 link_data->newobject = ptr;
3388
3389
3390 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
3391 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3392 return -1;
3393 }
3394
3395 return 0;
3396 }
3397
3398
3399 //qqq replace later with lseek()
3400 uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
3401 {
3402 return nfsfh->offset;
3403 }
3404
3405
3406
3407 /*
3408 * Get the maximum supported READ3 size by the server
3409 */
3410 uint64_t nfs_get_readmax(struct nfs_context *nfs)
3411 {
3412 return nfs->readmax;
3413 }
3414
3415 /*
3416 * Get the maximum supported WRITE3 size by the server
3417 */
3418 uint64_t nfs_get_writemax(struct nfs_context *nfs)
3419 {
3420 /* Some XDR libraries can not marshall PDUs bigger than this */
3421 if (nfs->writemax < 32768) {
3422 return nfs->writemax;
3423 }
3424 return 32768;
3425 }
3426
3427 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
3428 {
3429 va_list ap;
3430 char *str = NULL;
3431
3432 va_start(ap, error_string);
3433 str = malloc(1024);
3434 vsnprintf(str, 1024, error_string, ap);
3435 if (nfs->rpc->error_string != NULL) {
3436 free(nfs->rpc->error_string);
3437 }
3438 nfs->rpc->error_string = str;
3439 va_end(ap);
3440 }
3441
3442
3443
3444 struct mount_cb_data {
3445 rpc_cb cb;
3446 void *private_data;
3447 char *server;
3448 };
3449
3450 static void free_mount_cb_data(struct mount_cb_data *data)
3451 {
3452 if (data->server != NULL) {
3453 free(data->server);
3454 data->server = NULL;
3455 }
3456
3457 free(data);
3458 }
3459
3460 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3461 {
3462 struct mount_cb_data *data = private_data;
3463
3464 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3465
3466 if (status == RPC_STATUS_ERROR) {
3467 data->cb(rpc, -EFAULT, command_data, data->private_data);
3468 free_mount_cb_data(data);
3469 return;
3470 }
3471 if (status == RPC_STATUS_CANCEL) {
3472 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3473 free_mount_cb_data(data);
3474 return;
3475 }
3476
3477 data->cb(rpc, 0, command_data, data->private_data);
3478 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
3479 rpc_set_error(rpc, "Failed to disconnect\n");
3480 }
3481 free_mount_cb_data(data);
3482 }
3483
3484 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3485 {
3486 struct mount_cb_data *data = private_data;
3487
3488 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3489
3490 /* Dont want any more callbacks even if the socket is closed */
3491 rpc->connect_cb = NULL;
3492
3493 if (status == RPC_STATUS_ERROR) {
3494 data->cb(rpc, -EFAULT, command_data, data->private_data);
3495 free_mount_cb_data(data);
3496 return;
3497 }
3498 if (status == RPC_STATUS_CANCEL) {
3499 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3500 free_mount_cb_data(data);
3501 return;
3502 }
3503
3504 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
3505 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3506 free_mount_cb_data(data);
3507 return;
3508 }
3509 }
3510
3511 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3512 {
3513 struct mount_cb_data *data = private_data;
3514 uint32_t mount_port;
3515
3516 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3517
3518 if (status == RPC_STATUS_ERROR) {
3519 data->cb(rpc, -EFAULT, command_data, data->private_data);
3520 free_mount_cb_data(data);
3521 return;
3522 }
3523 if (status == RPC_STATUS_CANCEL) {
3524 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3525 free_mount_cb_data(data);
3526 return;
3527 }
3528
3529 mount_port = *(uint32_t *)command_data;
3530 if (mount_port == 0) {
3531 rpc_set_error(rpc, "RPC error. Mount program is not available");
3532 data->cb(rpc, -ENOENT, command_data, data->private_data);
3533 free_mount_cb_data(data);
3534 return;
3535 }
3536
3537 rpc_disconnect(rpc, "normal disconnect");
3538 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
3539 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3540 free_mount_cb_data(data);
3541 return;
3542 }
3543 }
3544
3545 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3546 {
3547 struct mount_cb_data *data = private_data;
3548
3549 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3550
3551 if (status == RPC_STATUS_ERROR) {
3552 data->cb(rpc, -EFAULT, command_data, data->private_data);
3553 free_mount_cb_data(data);
3554 return;
3555 }
3556 if (status == RPC_STATUS_CANCEL) {
3557 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3558 free_mount_cb_data(data);
3559 return;
3560 }
3561
3562 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
3563 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3564 free_mount_cb_data(data);
3565 return;
3566 }
3567 }
3568
3569 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3570 {
3571 struct mount_cb_data *data = private_data;
3572
3573 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3574
3575 /* Dont want any more callbacks even if the socket is closed */
3576 rpc->connect_cb = NULL;
3577
3578 if (status == RPC_STATUS_ERROR) {
3579 data->cb(rpc, -EFAULT, command_data, data->private_data);
3580 free_mount_cb_data(data);
3581 return;
3582 }
3583 if (status == RPC_STATUS_CANCEL) {
3584 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3585 free_mount_cb_data(data);
3586 return;
3587 }
3588
3589 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
3590 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3591 free_mount_cb_data(data);
3592 return;
3593 }
3594 }
3595
3596 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
3597 {
3598 struct mount_cb_data *data;
3599
3600 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3601
3602 data = malloc(sizeof(struct mount_cb_data));
3603 if (data == NULL) {
3604 return -1;
3605 }
3606 memset(data, 0, sizeof(struct mount_cb_data));
3607 data->cb = cb;
3608 data->private_data = private_data;
3609 data->server = strdup(server);
3610 if (data->server == NULL) {
3611 free_mount_cb_data(data);
3612 return -1;
3613 }
3614 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
3615 free_mount_cb_data(data);
3616 return -1;
3617 }
3618
3619 return 0;
3620 }
3621
3622 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
3623 {
3624 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
3625 return nfs->rpc;
3626 }
3627
3628 const char *nfs_get_server(struct nfs_context *nfs) {
3629 return nfs->server;
3630 }
3631
3632 const char *nfs_get_export(struct nfs_context *nfs) {
3633 return nfs->export;
3634 }
3635
3636 const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
3637 return &nfs->rootfh;
3638 }
3639
3640 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
3641 return &nfsfh->fh;
3642 }
libnfs Piment Noir Debian package repository