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[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
21 #define _GNU_SOURCE
22 #include <stdio.h>
23 #include <stdarg.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <strings.h>
27 #include <errno.h>
28 #include <sys/types.h>
29 #include <sys/stat.h>
30 #include <sys/statvfs.h>
31 #include <utime.h>
32 #include <unistd.h>
33 #include <fcntl.h>
34 #include "libnfs.h"
35 #include "libnfs-raw.h"
36 #include "libnfs-raw-mount.h"
37 #include "libnfs-raw-nfs.h"
38 #include "libnfs-private.h"
39
40 struct nfsdir {
41 struct nfsdirent *entries;
42 struct nfsdirent *current;
43 };
44
45 struct nfsfh {
46 struct nfs_fh3 fh;
47 int is_sync;
48 off_t offset;
49 };
50
51 struct nfs_context {
52 struct rpc_context *rpc;
53 char *server;
54 char *export;
55 struct nfs_fh3 rootfh;
56 size_t readmax;
57 size_t writemax;
58 };
59
60 void nfs_free_nfsdir(struct nfsdir *nfsdir)
61 {
62 while (nfsdir->entries) {
63 struct nfsdirent *dirent = nfsdir->entries->next;
64 if (nfsdir->entries->name != NULL) {
65 free(nfsdir->entries->name);
66 }
67 free(nfsdir->entries);
68 nfsdir->entries = dirent;
69 }
70 free(nfsdir);
71 }
72
73 struct nfs_cb_data;
74 typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
75
76 struct nfs_cb_data {
77 struct nfs_context *nfs;
78 struct nfsfh *nfsfh;
79 char *saved_path, *path;
80
81 nfs_cb cb;
82 void *private_data;
83
84 continue_func continue_cb;
85 void *continue_data;
86 void (*free_continue_data)(void *);
87 int continue_int;
88
89 struct nfs_fh3 fh;
90
91 /* for multi-read/write calls. */
92 int error;
93 int cancel;
94 int num_calls;
95 off_t start_offset, max_offset;
96 char *buffer;
97 };
98
99 struct nfs_mcb_data {
100 struct nfs_cb_data *data;
101 off_t offset;
102 size_t count;
103 };
104
105 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
106
107
108 void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
109 {
110 rpc_set_auth(nfs->rpc, auth);
111 }
112
113 int nfs_get_fd(struct nfs_context *nfs)
114 {
115 return rpc_get_fd(nfs->rpc);
116 }
117
118 int nfs_which_events(struct nfs_context *nfs)
119 {
120 return rpc_which_events(nfs->rpc);
121 }
122
123 int nfs_service(struct nfs_context *nfs, int revents)
124 {
125 return rpc_service(nfs->rpc, revents);
126 }
127
128 char *nfs_get_error(struct nfs_context *nfs)
129 {
130 return rpc_get_error(nfs->rpc);
131 };
132
133 struct nfs_context *nfs_init_context(void)
134 {
135 struct nfs_context *nfs;
136
137 nfs = malloc(sizeof(struct nfs_context));
138 if (nfs == NULL) {
139 return NULL;
140 }
141 nfs->rpc = rpc_init_context();
142 if (nfs->rpc == NULL) {
143 free(nfs);
144 return NULL;
145 }
146
147 nfs->server = NULL;
148 nfs->export = NULL;
149
150 nfs->rootfh.data.data_len = 0;
151 nfs->rootfh.data.data_val = NULL;
152
153 return nfs;
154 }
155
156 void nfs_destroy_context(struct nfs_context *nfs)
157 {
158 rpc_destroy_context(nfs->rpc);
159 nfs->rpc = NULL;
160
161 if (nfs->server) {
162 free(nfs->server);
163 nfs->server = NULL;
164 }
165
166 if (nfs->export) {
167 free(nfs->export);
168 nfs->export = NULL;
169 }
170
171 if (nfs->rootfh.data.data_val != NULL) {
172 free(nfs->rootfh.data.data_val);
173 nfs->rootfh.data.data_val = NULL;
174 }
175
176 free(nfs);
177 }
178
179 void free_nfs_cb_data(struct nfs_cb_data *data)
180 {
181 if (data->saved_path != NULL) {
182 free(data->saved_path);
183 data->saved_path = NULL;
184 }
185
186 if (data->continue_data != NULL) {
187 data->free_continue_data(data->continue_data);
188 data->continue_data = NULL;
189 }
190
191 if (data->fh.data.data_val != NULL) {
192 free(data->fh.data.data_val);
193 data->fh.data.data_val = NULL;
194 }
195
196 if (data->buffer != NULL) {
197 free(data->buffer);
198 data->buffer = NULL;
199 }
200
201 free(data);
202 }
203
204
205
206
207
208 static void nfs_mount_10_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
209 {
210 struct nfs_cb_data *data = private_data;
211 struct nfs_context *nfs = data->nfs;
212
213 if (status == RPC_STATUS_ERROR) {
214 data->cb(-EFAULT, nfs, command_data, data->private_data);
215 free_nfs_cb_data(data);
216 return;
217 }
218 if (status == RPC_STATUS_CANCEL) {
219 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
220 free_nfs_cb_data(data);
221 return;
222 }
223
224 data->cb(0, nfs, NULL, data->private_data);
225 free_nfs_cb_data(data);
226 }
227
228 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
229 {
230 struct nfs_cb_data *data = private_data;
231 struct nfs_context *nfs = data->nfs;
232 FSINFO3res *res = command_data;
233
234 if (status == RPC_STATUS_ERROR) {
235 data->cb(-EFAULT, nfs, command_data, data->private_data);
236 free_nfs_cb_data(data);
237 return;
238 }
239 if (status == RPC_STATUS_CANCEL) {
240 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
241 free_nfs_cb_data(data);
242 return;
243 }
244
245 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
246 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
247
248 if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
249 data->cb(-ENOMEM, nfs, command_data, data->private_data);
250 free_nfs_cb_data(data);
251 return;
252 }
253 }
254
255 static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
256 {
257 struct nfs_cb_data *data = private_data;
258 struct nfs_context *nfs = data->nfs;
259
260 if (status == RPC_STATUS_ERROR) {
261 data->cb(-EFAULT, nfs, command_data, data->private_data);
262 free_nfs_cb_data(data);
263 return;
264 }
265 if (status == RPC_STATUS_CANCEL) {
266 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
267 free_nfs_cb_data(data);
268 return;
269 }
270
271 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
272 data->cb(-ENOMEM, nfs, command_data, data->private_data);
273 free_nfs_cb_data(data);
274 return;
275 }
276 }
277
278
279 static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
280 {
281 struct nfs_cb_data *data = private_data;
282 struct nfs_context *nfs = data->nfs;
283
284 if (status == RPC_STATUS_ERROR) {
285 data->cb(-EFAULT, nfs, command_data, data->private_data);
286 free_nfs_cb_data(data);
287 return;
288 }
289 if (status == RPC_STATUS_CANCEL) {
290 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
291 free_nfs_cb_data(data);
292 return;
293 }
294
295 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
296 data->cb(-ENOMEM, nfs, command_data, data->private_data);
297 free_nfs_cb_data(data);
298 return;
299 }
300 }
301
302
303 static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
304 {
305 struct nfs_cb_data *data = private_data;
306 struct nfs_context *nfs = data->nfs;
307 mountres3 *res;
308
309 if (status == RPC_STATUS_ERROR) {
310 data->cb(-EFAULT, nfs, command_data, data->private_data);
311 free_nfs_cb_data(data);
312 return;
313 }
314 if (status == RPC_STATUS_CANCEL) {
315 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
316 free_nfs_cb_data(data);
317 return;
318 }
319
320 res = command_data;
321 if (res->fhs_status != MNT3_OK) {
322 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));
323 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
324 free_nfs_cb_data(data);
325 return;
326 }
327
328 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
329 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
330 if (nfs->rootfh.data.data_val == NULL) {
331 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
332 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
333 free_nfs_cb_data(data);
334 return;
335 }
336 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
337
338 rpc_disconnect(rpc, "normal disconnect");
339 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
340 data->cb(-ENOMEM, nfs, command_data, data->private_data);
341 free_nfs_cb_data(data);
342 return;
343 }
344 }
345
346
347 static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
348 {
349 struct nfs_cb_data *data = private_data;
350 struct nfs_context *nfs = data->nfs;
351
352 if (status == RPC_STATUS_ERROR) {
353 data->cb(-EFAULT, nfs, command_data, data->private_data);
354 free_nfs_cb_data(data);
355 return;
356 }
357 if (status == RPC_STATUS_CANCEL) {
358 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
359 free_nfs_cb_data(data);
360 return;
361 }
362
363 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
364 data->cb(-ENOMEM, nfs, command_data, data->private_data);
365 free_nfs_cb_data(data);
366 return;
367 }
368 }
369
370 static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
371 {
372 struct nfs_cb_data *data = private_data;
373 struct nfs_context *nfs = data->nfs;
374
375 if (status == RPC_STATUS_ERROR) {
376 data->cb(-EFAULT, nfs, command_data, data->private_data);
377 free_nfs_cb_data(data);
378 return;
379 }
380 if (status == RPC_STATUS_CANCEL) {
381 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
382 free_nfs_cb_data(data);
383 return;
384 }
385
386 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
387 data->cb(-ENOMEM, nfs, command_data, data->private_data);
388 free_nfs_cb_data(data);
389 return;
390 }
391 }
392
393 static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
394 {
395 struct nfs_cb_data *data = private_data;
396 struct nfs_context *nfs = data->nfs;
397 uint32_t mount_port;
398
399 if (status == RPC_STATUS_ERROR) {
400 data->cb(-EFAULT, nfs, command_data, data->private_data);
401 free_nfs_cb_data(data);
402 return;
403 }
404 if (status == RPC_STATUS_CANCEL) {
405 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
406 free_nfs_cb_data(data);
407 return;
408 }
409
410 mount_port = *(uint32_t *)command_data;
411 if (mount_port == 0) {
412 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
413 data->cb(-ENOENT, nfs, command_data, data->private_data);
414 free_nfs_cb_data(data);
415 return;
416 }
417
418 rpc_disconnect(rpc, "normal disconnect");
419 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
420 data->cb(-ENOMEM, nfs, command_data, data->private_data);
421 free_nfs_cb_data(data);
422 return;
423 }
424 }
425
426
427 static void nfs_mount_2_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
432 if (status == RPC_STATUS_ERROR) {
433 data->cb(-EFAULT, nfs, command_data, data->private_data);
434 free_nfs_cb_data(data);
435 return;
436 }
437 if (status == RPC_STATUS_CANCEL) {
438 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
439 free_nfs_cb_data(data);
440 return;
441 }
442
443 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, nfs_mount_3_cb, private_data) != 0) {
444 data->cb(-ENOMEM, nfs, command_data, data->private_data);
445 free_nfs_cb_data(data);
446 return;
447 }
448 }
449
450 static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
451 {
452 struct nfs_cb_data *data = private_data;
453 struct nfs_context *nfs = data->nfs;
454
455 if (status == RPC_STATUS_ERROR) {
456 data->cb(-EFAULT, nfs, command_data, data->private_data);
457 free_nfs_cb_data(data);
458 return;
459 }
460 if (status == RPC_STATUS_CANCEL) {
461 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
462 free_nfs_cb_data(data);
463 return;
464 }
465
466 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
467 data->cb(-ENOMEM, nfs, command_data, data->private_data);
468 free_nfs_cb_data(data);
469 return;
470 }
471 }
472
473 /*
474 * Async call for mounting an nfs share and geting the root filehandle
475 */
476 int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
477 {
478 struct nfs_cb_data *data;
479 char *new_server, *new_export;
480
481 data = malloc(sizeof(struct nfs_cb_data));
482 if (data == NULL) {
483 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
484 return -1;
485 }
486 bzero(data, sizeof(struct nfs_cb_data));
487 new_server = strdup(server);
488 new_export = strdup(export);
489 if (nfs->server != NULL) {
490 free(nfs->server);
491 nfs->server = NULL;
492 }
493 nfs->server = new_server;
494 if (nfs->export != NULL) {
495 free(nfs->export);
496 nfs->export = NULL;
497 }
498 nfs->export = new_export;
499 data->nfs = nfs;
500 data->cb = cb;
501 data->private_data = private_data;
502
503 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
504 rpc_set_error(nfs->rpc, "Failed to start connection");
505 free_nfs_cb_data(data);
506 return -1;
507 }
508
509 return 0;
510 }
511
512
513
514 /*
515 * Functions to first look up a path, component by component, and then finally call a specific function once
516 * the filehandle for the final component is found.
517 */
518 static void nfs_lookup_path_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
519 {
520 struct nfs_cb_data *data = private_data;
521 struct nfs_context *nfs = data->nfs;
522 LOOKUP3res *res;
523
524 if (status == RPC_STATUS_ERROR) {
525 data->cb(-EFAULT, nfs, command_data, data->private_data);
526 free_nfs_cb_data(data);
527 return;
528 }
529 if (status == RPC_STATUS_CANCEL) {
530 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
531 free_nfs_cb_data(data);
532 return;
533 }
534
535 res = command_data;
536 if (res->status != NFS3_OK) {
537 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));
538 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
539 free_nfs_cb_data(data);
540 return;
541 }
542
543 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
544 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
545 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
546 free_nfs_cb_data(data);
547 return;
548 }
549 }
550
551 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
552 {
553 char *path, *str;
554
555 while (*data->path == '/') {
556 data->path++;
557 }
558
559 path = data->path;
560 str = strchr(path, '/');
561 if (str != NULL) {
562 *str = 0;
563 data->path = str+1;
564 } else {
565 while (*data->path != 0) {
566 data->path++;
567 }
568 }
569
570 if (*path == 0) {
571 data->fh.data.data_len = fh->data.data_len;
572 data->fh.data.data_val = malloc(data->fh.data.data_len);
573 if (data->fh.data.data_val == NULL) {
574 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
575 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
576 free_nfs_cb_data(data);
577 return -1;
578 }
579 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
580 data->continue_cb(nfs, data);
581 return 0;
582 }
583
584 if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
585 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
586 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
587 free_nfs_cb_data(data);
588 return -1;
589 }
590 return 0;
591 }
592
593 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)
594 {
595 struct nfs_cb_data *data;
596
597 if (path[0] != '/') {
598 rpc_set_error(nfs->rpc, "Pathname is not absulute %s", path);
599 return -1;
600 }
601
602 data = malloc(sizeof(struct nfs_cb_data));
603 if (data == NULL) {
604 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
605 return -1;
606 }
607 bzero(data, sizeof(struct nfs_cb_data));
608 data->nfs = nfs;
609 data->cb = cb;
610 data->continue_cb = continue_cb;
611 data->continue_data = continue_data;
612 data->free_continue_data = free_continue_data;
613 data->continue_int = continue_int;
614 data->private_data = private_data;
615 data->saved_path = strdup(path);
616 if (data->saved_path == NULL) {
617 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
618 free_nfs_cb_data(data);
619 return -1;
620 }
621 data->path = data->saved_path;
622
623 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
624 /* return 0 here since the callback will be invoked if there is a failure */
625 return 0;
626 }
627 return 0;
628 }
629
630
631
632
633
634 /*
635 * Async stat()
636 */
637 static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
638 {
639 GETATTR3res *res;
640 struct nfs_cb_data *data = private_data;
641 struct nfs_context *nfs = data->nfs;
642 struct stat st;
643
644 if (status == RPC_STATUS_ERROR) {
645 data->cb(-EFAULT, nfs, command_data, data->private_data);
646 free_nfs_cb_data(data);
647 return;
648 }
649 if (status == RPC_STATUS_CANCEL) {
650 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
651 free_nfs_cb_data(data);
652 return;
653 }
654
655 res = command_data;
656 if (res->status != NFS3_OK) {
657 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));
658 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
659 free_nfs_cb_data(data);
660 return;
661 }
662
663 st.st_dev = -1;
664 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
665 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
666 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
667 st.st_mode |= S_IFDIR ;
668 }
669 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
670 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
671 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
672 st.st_rdev = 0;
673 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
674 #if !defined(WIN32)
675 st.st_blksize = 4096;
676 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
677 #endif
678 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
679 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
680 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
681
682 data->cb(0, nfs, &st, data->private_data);
683 free_nfs_cb_data(data);
684 }
685
686 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
687 {
688 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
689 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
690 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
691 free_nfs_cb_data(data);
692 return -1;
693 }
694 return 0;
695 }
696
697 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
698 {
699 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
700 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
701 return -1;
702 }
703
704 return 0;
705 }
706
707
708
709
710
711 /*
712 * Async open()
713 */
714 static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
715 {
716 ACCESS3res *res;
717 struct nfs_cb_data *data = private_data;
718 struct nfs_context *nfs = data->nfs;
719 struct nfsfh *nfsfh;
720 unsigned int nfsmode = 0;
721
722 if (status == RPC_STATUS_ERROR) {
723 data->cb(-EFAULT, nfs, command_data, data->private_data);
724 free_nfs_cb_data(data);
725 return;
726 }
727 if (status == RPC_STATUS_CANCEL) {
728 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
729 free_nfs_cb_data(data);
730 return;
731 }
732
733 res = command_data;
734 if (res->status != NFS3_OK) {
735 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));
736 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
737 free_nfs_cb_data(data);
738 return;
739 }
740
741 if (data->continue_int & O_WRONLY) {
742 nfsmode |= ACCESS3_MODIFY;
743 }
744 if (data->continue_int & O_RDWR) {
745 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
746 }
747 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
748 nfsmode |= ACCESS3_READ;
749 }
750
751
752 if (res->ACCESS3res_u.resok.access != nfsmode) {
753 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
754 nfsmode&ACCESS3_READ?'r':'-',
755 nfsmode&ACCESS3_MODIFY?'w':'-',
756 nfsmode&ACCESS3_EXECUTE?'x':'-',
757 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
758 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
759 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
760 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
761 free_nfs_cb_data(data);
762 return;
763 }
764
765 nfsfh = malloc(sizeof(struct nfsfh));
766 if (nfsfh == NULL) {
767 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
768 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
769 free_nfs_cb_data(data);
770 return;
771 }
772 bzero(nfsfh, sizeof(struct nfsfh));
773
774 if (data->continue_int & O_SYNC) {
775 nfsfh->is_sync = 1;
776 }
777
778 /* steal the filehandle */
779 nfsfh->fh.data.data_len = data->fh.data.data_len;
780 nfsfh->fh.data.data_val = data->fh.data.data_val;
781 data->fh.data.data_val = NULL;
782
783 data->cb(0, nfs, nfsfh, data->private_data);
784 free_nfs_cb_data(data);
785 }
786
787 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
788 {
789 int nfsmode = 0;
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 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
802 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
803 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
804 free_nfs_cb_data(data);
805 return -1;
806 }
807 return 0;
808 }
809
810 int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
811 {
812 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
813 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
814 return -1;
815 }
816
817 return 0;
818 }
819
820
821
822
823
824 /*
825 * Async pread()
826 */
827 static void nfs_pread_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
828 {
829 struct nfs_cb_data *data = private_data;
830 struct nfs_context *nfs = data->nfs;
831 READ3res *res;
832
833 if (status == RPC_STATUS_ERROR) {
834 data->cb(-EFAULT, nfs, command_data, data->private_data);
835 free_nfs_cb_data(data);
836 return;
837 }
838 if (status == RPC_STATUS_CANCEL) {
839 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
840 free_nfs_cb_data(data);
841 return;
842 }
843
844 res = command_data;
845 if (res->status != NFS3_OK) {
846 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
847 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
848 free_nfs_cb_data(data);
849 return;
850 }
851
852 data->nfsfh->offset += res->READ3res_u.resok.count;
853 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
854 free_nfs_cb_data(data);
855 }
856
857 static void nfs_pread_mcb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
858 {
859 struct nfs_mcb_data *mdata = private_data;
860 struct nfs_cb_data *data = mdata->data;
861 struct nfs_context *nfs = data->nfs;
862 READ3res *res;
863
864 data->num_calls--;
865
866 if (status == RPC_STATUS_ERROR) {
867 /* flag the failure but do not invoke callback until we have received all responses */
868 data->error = 1;
869 }
870 if (status == RPC_STATUS_CANCEL) {
871 /* flag the cancellation but do not invoke callback until we have received all responses */
872 data->cancel = 1;
873 }
874
875 /* reassemble the data into the buffer */
876 if (status == RPC_STATUS_SUCCESS) {
877 res = command_data;
878 if (res->status != NFS3_OK) {
879 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
880 data->error = 1;
881 } else {
882 if (res->READ3res_u.resok.count > 0) {
883 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
884 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
885 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
886 }
887 }
888 }
889 }
890
891 if (data->num_calls > 0) {
892 /* still waiting for more replies */
893 free(mdata);
894 return;
895 }
896
897 if (data->error != 0) {
898 data->cb(-EFAULT, nfs, command_data, data->private_data);
899 free_nfs_cb_data(data);
900 free(mdata);
901 return;
902 }
903 if (data->cancel != 0) {
904 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
905 free_nfs_cb_data(data);
906 free(mdata);
907 return;
908 }
909
910 data->nfsfh->offset = data->max_offset;
911 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
912
913 free_nfs_cb_data(data);
914 free(mdata);
915 }
916
917 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, nfs_cb cb, void *private_data)
918 {
919 struct nfs_cb_data *data;
920
921 data = malloc(sizeof(struct nfs_cb_data));
922 if (data == NULL) {
923 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
924 return -1;
925 }
926 bzero(data, sizeof(struct nfs_cb_data));
927 data->nfs = nfs;
928 data->cb = cb;
929 data->private_data = private_data;
930 data->nfsfh = nfsfh;
931
932 nfsfh->offset = offset;
933
934 if (count <= nfs_get_readmax(nfs)) {
935 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
936 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
937 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
938 free_nfs_cb_data(data);
939 return -1;
940 }
941 return 0;
942 }
943
944 /* trying to read more than maximum server read size, we has to chop it up into smaller
945 * reads and collect into a reassembly buffer.
946 * we send all reads in parallell so that performance is still good.
947 */
948 data->max_offset = offset;
949 data->start_offset = offset;
950
951 data->buffer = malloc(count);
952 if (data->buffer == NULL) {
953 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
954 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
955 free_nfs_cb_data(data);
956 return -1;
957 }
958
959 while (count > 0) {
960 size_t readcount = count;
961 struct nfs_mcb_data *mdata;
962
963 if (readcount > nfs_get_readmax(nfs)) {
964 readcount = nfs_get_readmax(nfs);
965 }
966
967 mdata = malloc(sizeof(struct nfs_mcb_data));
968 if (mdata == NULL) {
969 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
970 return -1;
971 }
972 bzero(mdata, sizeof(struct nfs_mcb_data));
973 mdata->data = data;
974 mdata->offset = offset;
975 mdata->count = readcount;
976 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
977 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
978 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
979 free(mdata);
980 return -1;
981 }
982
983 count -= readcount;
984 offset += readcount;
985 data->num_calls++;
986 }
987
988 return 0;
989 }
990
991 /*
992 * Async read()
993 */
994 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, nfs_cb cb, void *private_data)
995 {
996 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
997 }
998
999
1000
1001 /*
1002 * Async pwrite()
1003 */
1004 static void nfs_pwrite_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1005 {
1006 struct nfs_cb_data *data = private_data;
1007 struct nfs_context *nfs = data->nfs;
1008 WRITE3res *res;
1009
1010 if (status == RPC_STATUS_ERROR) {
1011 data->cb(-EFAULT, nfs, command_data, data->private_data);
1012 free_nfs_cb_data(data);
1013 return;
1014 }
1015 if (status == RPC_STATUS_CANCEL) {
1016 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1017 free_nfs_cb_data(data);
1018 return;
1019 }
1020
1021 res = command_data;
1022 if (res->status != NFS3_OK) {
1023 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1024 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1025 free_nfs_cb_data(data);
1026 return;
1027 }
1028
1029 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1030 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1031 free_nfs_cb_data(data);
1032 }
1033
1034 int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf, nfs_cb cb, void *private_data)
1035 {
1036 struct nfs_cb_data *data;
1037
1038 data = malloc(sizeof(struct nfs_cb_data));
1039 if (data == NULL) {
1040 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1041 return -1;
1042 }
1043 bzero(data, sizeof(struct nfs_cb_data));
1044 data->nfs = nfs;
1045 data->cb = cb;
1046 data->private_data = private_data;
1047 data->nfsfh = nfsfh;
1048
1049 nfsfh->offset = offset;
1050 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
1051 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1052 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1053 free_nfs_cb_data(data);
1054 return -1;
1055 }
1056 return 0;
1057 }
1058
1059 /*
1060 * Async write()
1061 */
1062 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf, nfs_cb cb, void *private_data)
1063 {
1064 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1065 }
1066
1067
1068
1069
1070 /*
1071 * close
1072 */
1073
1074 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1075 {
1076 if (nfsfh->fh.data.data_val != NULL){
1077 free(nfsfh->fh.data.data_val);
1078 nfsfh->fh.data.data_val = NULL;
1079 }
1080 free(nfsfh);
1081
1082 cb(0, nfs, NULL, private_data);
1083 return 0;
1084 };
1085
1086
1087
1088
1089
1090 /*
1091 * Async fstat()
1092 */
1093 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1094 {
1095 struct nfs_cb_data *data;
1096
1097 data = malloc(sizeof(struct nfs_cb_data));
1098 if (data == NULL) {
1099 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1100 return -1;
1101 }
1102 bzero(data, sizeof(struct nfs_cb_data));
1103 data->nfs = nfs;
1104 data->cb = cb;
1105 data->private_data = private_data;
1106
1107 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
1108 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1109 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1110 free_nfs_cb_data(data);
1111 return -1;
1112 }
1113 return 0;
1114 }
1115
1116
1117
1118 /*
1119 * Async fsync()
1120 */
1121 static void nfs_fsync_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1122 {
1123 struct nfs_cb_data *data = private_data;
1124 struct nfs_context *nfs = data->nfs;
1125 COMMIT3res *res;
1126
1127 if (status == RPC_STATUS_ERROR) {
1128 data->cb(-EFAULT, nfs, command_data, data->private_data);
1129 free_nfs_cb_data(data);
1130 return;
1131 }
1132 if (status == RPC_STATUS_CANCEL) {
1133 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1134 free_nfs_cb_data(data);
1135 return;
1136 }
1137
1138 res = command_data;
1139 if (res->status != NFS3_OK) {
1140 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1141 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1142 free_nfs_cb_data(data);
1143 return;
1144 }
1145
1146 data->cb(0, nfs, NULL, data->private_data);
1147 free_nfs_cb_data(data);
1148 }
1149
1150 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1151 {
1152 struct nfs_cb_data *data;
1153
1154 data = malloc(sizeof(struct nfs_cb_data));
1155 if (data == NULL) {
1156 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1157 return -1;
1158 }
1159 bzero(data, sizeof(struct nfs_cb_data));
1160 data->nfs = nfs;
1161 data->cb = cb;
1162 data->private_data = private_data;
1163
1164 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1165 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1166 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1167 free_nfs_cb_data(data);
1168 return -1;
1169 }
1170 return 0;
1171 }
1172
1173
1174
1175
1176 /*
1177 * Async ftruncate()
1178 */
1179 static void nfs_ftruncate_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1180 {
1181 struct nfs_cb_data *data = private_data;
1182 struct nfs_context *nfs = data->nfs;
1183 SETATTR3res *res;
1184
1185 if (status == RPC_STATUS_ERROR) {
1186 data->cb(-EFAULT, nfs, command_data, data->private_data);
1187 free_nfs_cb_data(data);
1188 return;
1189 }
1190 if (status == RPC_STATUS_CANCEL) {
1191 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1192 free_nfs_cb_data(data);
1193 return;
1194 }
1195
1196 res = command_data;
1197 if (res->status != NFS3_OK) {
1198 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1199 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1200 free_nfs_cb_data(data);
1201 return;
1202 }
1203
1204 data->cb(0, nfs, NULL, data->private_data);
1205 free_nfs_cb_data(data);
1206 }
1207
1208 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length, nfs_cb cb, void *private_data)
1209 {
1210 struct nfs_cb_data *data;
1211 SETATTR3args args;
1212
1213 data = malloc(sizeof(struct nfs_cb_data));
1214 if (data == NULL) {
1215 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1216 return -1;
1217 }
1218 bzero(data, sizeof(struct nfs_cb_data));
1219 data->nfs = nfs;
1220 data->cb = cb;
1221 data->private_data = private_data;
1222
1223 bzero(&args, sizeof(SETATTR3args));
1224 args.object.data.data_len = nfsfh->fh.data.data_len;
1225 args.object.data.data_val = nfsfh->fh.data.data_val;
1226 args.new_attributes.size.set_it = 1;
1227 args.new_attributes.size.set_size3_u.size = length;
1228
1229 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1230 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1231 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1232 free_nfs_cb_data(data);
1233 return -1;
1234 }
1235 return 0;
1236 }
1237
1238
1239 /*
1240 * Async truncate()
1241 */
1242 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1243 {
1244 off_t offset = data->continue_int;
1245 struct nfsfh nfsfh;
1246
1247 nfsfh.fh.data.data_val = data->fh.data.data_val;
1248 nfsfh.fh.data.data_len = data->fh.data.data_len;
1249
1250 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1251 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1252 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1253 free_nfs_cb_data(data);
1254 return -1;
1255 }
1256 free_nfs_cb_data(data);
1257 return 0;
1258 }
1259
1260 int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length, nfs_cb cb, void *private_data)
1261 {
1262 off_t offset;
1263
1264 offset = length;
1265
1266 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1267 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1268 return -1;
1269 }
1270
1271 return 0;
1272 }
1273
1274
1275
1276
1277 /*
1278 * Async mkdir()
1279 */
1280 static void nfs_mkdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1281 {
1282 MKDIR3res *res;
1283 struct nfs_cb_data *data = private_data;
1284 struct nfs_context *nfs = data->nfs;
1285 char *str = data->continue_data;
1286
1287 str = &str[strlen(str) + 1];
1288
1289 if (status == RPC_STATUS_ERROR) {
1290 data->cb(-EFAULT, nfs, command_data, data->private_data);
1291 free_nfs_cb_data(data);
1292 return;
1293 }
1294 if (status == RPC_STATUS_CANCEL) {
1295 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1296 free_nfs_cb_data(data);
1297 return;
1298 }
1299
1300 res = command_data;
1301 if (res->status != NFS3_OK) {
1302 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));
1303 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1304 free_nfs_cb_data(data);
1305 return;
1306 }
1307
1308 data->cb(0, nfs, NULL, data->private_data);
1309 free_nfs_cb_data(data);
1310 }
1311
1312 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1313 {
1314 char *str = data->continue_data;
1315
1316 str = &str[strlen(str) + 1];
1317
1318 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &data->fh, str, data) != 0) {
1319 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1320 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1321 free_nfs_cb_data(data);
1322 return -1;
1323 }
1324 return 0;
1325 }
1326
1327 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1328 {
1329 char *new_path;
1330 char *ptr;
1331
1332 new_path = strdup(path);
1333 if (new_path == NULL) {
1334 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1335 return -1;
1336 }
1337
1338 ptr = strrchr(new_path, '/');
1339 if (ptr == NULL) {
1340 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1341 return -1;
1342 }
1343 *ptr = 0;
1344
1345 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1346 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1347 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1348 return -1;
1349 }
1350
1351 return 0;
1352 }
1353
1354
1355
1356
1357
1358 /*
1359 * Async rmdir()
1360 */
1361 static void nfs_rmdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1362 {
1363 RMDIR3res *res;
1364 struct nfs_cb_data *data = private_data;
1365 struct nfs_context *nfs = data->nfs;
1366 char *str = data->continue_data;
1367
1368 str = &str[strlen(str) + 1];
1369
1370 if (status == RPC_STATUS_ERROR) {
1371 data->cb(-EFAULT, nfs, command_data, data->private_data);
1372 free_nfs_cb_data(data);
1373 return;
1374 }
1375 if (status == RPC_STATUS_CANCEL) {
1376 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1377 free_nfs_cb_data(data);
1378 return;
1379 }
1380
1381 res = command_data;
1382 if (res->status != NFS3_OK) {
1383 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));
1384 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1385 free_nfs_cb_data(data);
1386 return;
1387 }
1388
1389 data->cb(0, nfs, NULL, data->private_data);
1390 free_nfs_cb_data(data);
1391 }
1392
1393 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1394 {
1395 char *str = data->continue_data;
1396
1397 str = &str[strlen(str) + 1];
1398
1399 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1400 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1401 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1402 free_nfs_cb_data(data);
1403 return -1;
1404 }
1405 return 0;
1406 }
1407
1408 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1409 {
1410 char *new_path;
1411 char *ptr;
1412
1413 new_path = strdup(path);
1414 if (new_path == NULL) {
1415 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1416 return -1;
1417 }
1418
1419 ptr = strrchr(new_path, '/');
1420 if (ptr == NULL) {
1421 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1422 return -1;
1423 }
1424 *ptr = 0;
1425
1426 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1427 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
1428 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1429 return -1;
1430 }
1431
1432 return 0;
1433 }
1434
1435
1436
1437
1438 /*
1439 * Async creat()
1440 */
1441 static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1442 {
1443 LOOKUP3res *res;
1444 struct nfs_cb_data *data = private_data;
1445 struct nfs_context *nfs = data->nfs;
1446 struct nfsfh *nfsfh;
1447 char *str = data->continue_data;
1448
1449 if (status == RPC_STATUS_ERROR) {
1450 data->cb(-EFAULT, nfs, command_data, data->private_data);
1451 free_nfs_cb_data(data);
1452 return;
1453 }
1454 if (status == RPC_STATUS_CANCEL) {
1455 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1456 free_nfs_cb_data(data);
1457 return;
1458 }
1459
1460 str = &str[strlen(str) + 1];
1461 res = command_data;
1462 if (res->status != NFS3_OK) {
1463 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));
1464 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1465
1466 return;
1467 }
1468
1469 nfsfh = malloc(sizeof(struct nfsfh));
1470 if (nfsfh == NULL) {
1471 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1472 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1473 free_nfs_cb_data(data);
1474 return;
1475 }
1476 bzero(nfsfh, sizeof(struct nfsfh));
1477
1478 /* steal the filehandle */
1479 nfsfh->fh.data.data_len = data->fh.data.data_len;
1480 nfsfh->fh.data.data_val = data->fh.data.data_val;
1481 data->fh.data.data_val = NULL;
1482
1483 data->cb(0, nfs, nfsfh, data->private_data);
1484 free_nfs_cb_data(data);
1485 }
1486
1487
1488
1489 static void nfs_creat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1490 {
1491 CREATE3res *res;
1492 struct nfs_cb_data *data = private_data;
1493 struct nfs_context *nfs = data->nfs;
1494 char *str = data->continue_data;
1495
1496 if (status == RPC_STATUS_ERROR) {
1497 data->cb(-EFAULT, nfs, command_data, data->private_data);
1498 free_nfs_cb_data(data);
1499 return;
1500 }
1501 if (status == RPC_STATUS_CANCEL) {
1502 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1503 free_nfs_cb_data(data);
1504 return;
1505 }
1506
1507 str = &str[strlen(str) + 1];
1508 res = command_data;
1509 if (res->status != NFS3_OK) {
1510 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));
1511 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1512
1513 return;
1514 }
1515
1516 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
1517 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
1518 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1519 free_nfs_cb_data(data);
1520 return;
1521 }
1522 return;
1523 }
1524
1525 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1526 {
1527 char *str = data->continue_data;
1528
1529 str = &str[strlen(str) + 1];
1530
1531 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &data->fh, str, data->continue_int, data) != 0) {
1532 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
1533 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1534 free_nfs_cb_data(data);
1535 return -1;
1536 }
1537 return 0;
1538 }
1539
1540 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1541 {
1542 char *new_path;
1543 char *ptr;
1544
1545 new_path = strdup(path);
1546 if (new_path == NULL) {
1547 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1548 return -1;
1549 }
1550
1551 ptr = strrchr(new_path, '/');
1552 if (ptr == NULL) {
1553 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1554 return -1;
1555 }
1556 *ptr = 0;
1557
1558 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1559 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
1560 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1561 return -1;
1562 }
1563
1564 return 0;
1565 }
1566
1567
1568
1569
1570 /*
1571 * Async unlink()
1572 */
1573 static void nfs_unlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1574 {
1575 REMOVE3res *res;
1576 struct nfs_cb_data *data = private_data;
1577 struct nfs_context *nfs = data->nfs;
1578 char *str = data->continue_data;
1579
1580 str = &str[strlen(str) + 1];
1581
1582 if (status == RPC_STATUS_ERROR) {
1583 data->cb(-EFAULT, nfs, command_data, data->private_data);
1584 free_nfs_cb_data(data);
1585 return;
1586 }
1587 if (status == RPC_STATUS_CANCEL) {
1588 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1589 free_nfs_cb_data(data);
1590 return;
1591 }
1592
1593 res = command_data;
1594 if (res->status != NFS3_OK) {
1595 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));
1596 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1597 free_nfs_cb_data(data);
1598 return;
1599 }
1600
1601 data->cb(0, nfs, NULL, data->private_data);
1602 free_nfs_cb_data(data);
1603 }
1604
1605 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1606 {
1607 char *str = data->continue_data;
1608
1609 str = &str[strlen(str) + 1];
1610
1611 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
1612 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
1613 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1614 free_nfs_cb_data(data);
1615 return -1;
1616 }
1617 return 0;
1618 }
1619
1620 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1621 {
1622 char *new_path;
1623 char *ptr;
1624
1625 new_path = strdup(path);
1626 if (new_path == NULL) {
1627 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1628 return -1;
1629 }
1630
1631 ptr = strrchr(new_path, '/');
1632 if (ptr == NULL) {
1633 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1634 return -1;
1635 }
1636 *ptr = 0;
1637
1638 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1639 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
1640 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1641 return -1;
1642 }
1643
1644 return 0;
1645 }
1646
1647
1648
1649
1650
1651 /*
1652 * Async opendir()
1653 */
1654 static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1655 {
1656 READDIR3res *res;
1657 struct nfs_cb_data *data = private_data;
1658 struct nfs_context *nfs = data->nfs;
1659 struct nfsdir *nfsdir = data->continue_data;
1660 struct entry3 *entry;
1661 uint64_t cookie;
1662
1663 if (status == RPC_STATUS_ERROR) {
1664 data->cb(-EFAULT, nfs, command_data, data->private_data);
1665 nfs_free_nfsdir(nfsdir);
1666 data->continue_data = NULL;
1667 free_nfs_cb_data(data);
1668 return;
1669 }
1670 if (status == RPC_STATUS_CANCEL) {
1671 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1672 nfs_free_nfsdir(nfsdir);
1673 data->continue_data = NULL;
1674 free_nfs_cb_data(data);
1675 return;
1676 }
1677
1678 res = command_data;
1679 if (res->status != NFS3_OK) {
1680 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));
1681 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1682 nfs_free_nfsdir(nfsdir);
1683 data->continue_data = NULL;
1684 free_nfs_cb_data(data);
1685 return;
1686 }
1687
1688 entry =res->READDIR3res_u.resok.reply.entries;
1689 while (entry != NULL) {
1690 struct nfsdirent *nfsdirent;
1691
1692 nfsdirent = malloc(sizeof(struct nfsdirent));
1693 if (nfsdirent == NULL) {
1694 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
1695 nfs_free_nfsdir(nfsdir);
1696 data->continue_data = NULL;
1697 free_nfs_cb_data(data);
1698 return;
1699 }
1700 bzero(nfsdirent, sizeof(struct nfsdirent));
1701 nfsdirent->name = strdup(entry->name);
1702 if (nfsdirent->name == NULL) {
1703 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
1704 nfs_free_nfsdir(nfsdir);
1705 data->continue_data = NULL;
1706 free_nfs_cb_data(data);
1707 return;
1708 }
1709 nfsdirent->inode = entry->fileid;
1710 nfsdirent->next = nfsdir->entries;
1711 nfsdir->entries = nfsdirent;
1712
1713 cookie = entry->cookie;
1714 entry = entry->nextentry;
1715 }
1716
1717 if (res->READDIR3res_u.resok.reply.eof == 0) {
1718 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 20000, data) != 0) {
1719 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
1720 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1721 nfs_free_nfsdir(nfsdir);
1722 data->continue_data = NULL;
1723 free_nfs_cb_data(data);
1724 return;
1725 }
1726 return;
1727 }
1728
1729 /* steal the dirhandle */
1730 data->continue_data = NULL;
1731 nfsdir->current = nfsdir->entries;
1732
1733 data->cb(0, nfs, nfsdir, data->private_data);
1734 free_nfs_cb_data(data);
1735 }
1736
1737 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1738 {
1739 cookieverf3 cv;
1740
1741 bzero(cv, sizeof(cookieverf3));
1742 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 20000, data) != 0) {
1743 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
1744 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1745 free_nfs_cb_data(data);
1746 return -1;
1747 }
1748 return 0;
1749 }
1750
1751 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1752 {
1753 struct nfsdir *nfsdir;
1754
1755 nfsdir = malloc(sizeof(struct nfsdir));
1756 if (nfsdir == NULL) {
1757 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
1758 return -1;
1759 }
1760 bzero(nfsdir, sizeof(struct nfsdir));
1761
1762 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
1763 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1764 return -1;
1765 }
1766
1767 return 0;
1768 }
1769
1770
1771 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1772 {
1773 struct nfsdirent *nfsdirent = nfsdir->current;
1774
1775 if (nfsdir->current != NULL) {
1776 nfsdir->current = nfsdir->current->next;
1777 }
1778 return nfsdirent;
1779 }
1780
1781
1782 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1783 {
1784 nfs_free_nfsdir(nfsdir);
1785 }
1786
1787
1788
1789
1790
1791
1792
1793 /*
1794 * Async lseek()
1795 */
1796 struct lseek_cb_data {
1797 struct nfs_context *nfs;
1798 struct nfsfh *nfsfh;
1799 off_t offset;
1800 nfs_cb cb;
1801 void *private_data;
1802 };
1803
1804 static void nfs_lseek_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1805 {
1806 GETATTR3res *res;
1807 struct lseek_cb_data *data = private_data;
1808 struct nfs_context *nfs = data->nfs;
1809
1810 if (status == RPC_STATUS_ERROR) {
1811 data->cb(-EFAULT, nfs, command_data, data->private_data);
1812 free(data);
1813 return;
1814 }
1815 if (status == RPC_STATUS_CANCEL) {
1816 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1817 free(data);
1818 return;
1819 }
1820
1821 res = command_data;
1822 if (res->status != NFS3_OK) {
1823 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1824 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1825 free(data);
1826 return;
1827 }
1828
1829 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
1830 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
1831 free(data);
1832 }
1833
1834 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, nfs_cb cb, void *private_data)
1835 {
1836 struct lseek_cb_data *data;
1837
1838 if (whence == SEEK_SET) {
1839 nfsfh->offset = offset;
1840 cb(0, nfs, &nfsfh->offset, private_data);
1841 return 0;
1842 }
1843 if (whence == SEEK_CUR) {
1844 nfsfh->offset += offset;
1845 cb(0, nfs, &nfsfh->offset, private_data);
1846 return 0;
1847 }
1848
1849 data = malloc(sizeof(struct lseek_cb_data));
1850 if (data == NULL) {
1851 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
1852 return -1;
1853 }
1854
1855 data->nfs = nfs;
1856 data->nfsfh = nfsfh;
1857 data->offset = offset;
1858 data->cb = cb;
1859 data->private_data = private_data;
1860
1861 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
1862 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
1863 free(data);
1864 return -1;
1865 }
1866 return 0;
1867 }
1868
1869
1870
1871
1872 /*
1873 * Async statvfs()
1874 */
1875 static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1876 {
1877 FSSTAT3res *res;
1878 struct nfs_cb_data *data = private_data;
1879 struct nfs_context *nfs = data->nfs;
1880 struct statvfs svfs;
1881
1882 if (status == RPC_STATUS_ERROR) {
1883 data->cb(-EFAULT, nfs, command_data, data->private_data);
1884 free_nfs_cb_data(data);
1885 return;
1886 }
1887 if (status == RPC_STATUS_CANCEL) {
1888 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1889 free_nfs_cb_data(data);
1890 return;
1891 }
1892
1893 res = command_data;
1894 if (res->status != NFS3_OK) {
1895 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));
1896 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1897 free_nfs_cb_data(data);
1898 return;
1899 }
1900
1901 svfs.f_bsize = 4096;
1902 svfs.f_frsize = 4096;
1903 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
1904 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
1905 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
1906 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
1907 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
1908 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
1909 svfs.f_fsid = 0;
1910 svfs.f_flag = 0;
1911 svfs.f_namemax = 256;
1912
1913 data->cb(0, nfs, &svfs, data->private_data);
1914 free_nfs_cb_data(data);
1915 }
1916
1917 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1918 {
1919 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
1920 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
1921 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1922 free_nfs_cb_data(data);
1923 return -1;
1924 }
1925 return 0;
1926 }
1927
1928 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1929 {
1930 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
1931 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1932 return -1;
1933 }
1934
1935 return 0;
1936 }
1937
1938
1939
1940
1941 /*
1942 * Async readlink()
1943 */
1944 static void nfs_readlink_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1945 {
1946 READLINK3res *res;
1947 struct nfs_cb_data *data = private_data;
1948 struct nfs_context *nfs = data->nfs;
1949
1950 if (status == RPC_STATUS_ERROR) {
1951 data->cb(-EFAULT, nfs, command_data, data->private_data);
1952 free_nfs_cb_data(data);
1953 return;
1954 }
1955 if (status == RPC_STATUS_CANCEL) {
1956 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1957 free_nfs_cb_data(data);
1958 return;
1959 }
1960
1961 res = command_data;
1962 if (res->status != NFS3_OK) {
1963 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));
1964 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1965 free_nfs_cb_data(data);
1966 return;
1967 }
1968
1969
1970 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
1971 free_nfs_cb_data(data);
1972 }
1973
1974 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1975 {
1976 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &data->fh, data) != 0) {
1977 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
1978 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1979 free_nfs_cb_data(data);
1980 return -1;
1981 }
1982 return 0;
1983 }
1984
1985 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1986 {
1987 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
1988 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1989 return -1;
1990 }
1991
1992 return 0;
1993 }
1994
1995
1996
1997
1998 /*
1999 * Async chmod()
2000 */
2001 static void nfs_chmod_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2002 {
2003 struct nfs_cb_data *data = private_data;
2004 struct nfs_context *nfs = data->nfs;
2005 SETATTR3res *res;
2006
2007 if (status == RPC_STATUS_ERROR) {
2008 data->cb(-EFAULT, nfs, command_data, data->private_data);
2009 free_nfs_cb_data(data);
2010 return;
2011 }
2012 if (status == RPC_STATUS_CANCEL) {
2013 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2014 free_nfs_cb_data(data);
2015 return;
2016 }
2017
2018 res = command_data;
2019 if (res->status != NFS3_OK) {
2020 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2021 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2022 free_nfs_cb_data(data);
2023 return;
2024 }
2025
2026 data->cb(0, nfs, NULL, data->private_data);
2027 free_nfs_cb_data(data);
2028 }
2029
2030 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2031 {
2032 SETATTR3args args;
2033
2034 bzero(&args, sizeof(SETATTR3args));
2035 args.object.data.data_len = data->fh.data.data_len;
2036 args.object.data.data_val = data->fh.data.data_val;
2037 args.new_attributes.mode.set_it = 1;
2038 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2039
2040 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2041 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2042 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2043 free_nfs_cb_data(data);
2044 return -1;
2045 }
2046 return 0;
2047 }
2048
2049
2050 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2051 {
2052 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
2053 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2054 return -1;
2055 }
2056
2057 return 0;
2058 }
2059
2060 /*
2061 * Async fchmod()
2062 */
2063 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2064 {
2065 struct nfs_cb_data *data;
2066
2067 data = malloc(sizeof(struct nfs_cb_data));
2068 if (data == NULL) {
2069 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
2070 return -1;
2071 }
2072 bzero(data, sizeof(struct nfs_cb_data));
2073 data->nfs = nfs;
2074 data->cb = cb;
2075 data->private_data = private_data;
2076 data->continue_int = mode;
2077 data->fh.data.data_len = nfsfh->fh.data.data_len;
2078 data->fh.data.data_val = malloc(data->fh.data.data_len);
2079 if (data->fh.data.data_val == NULL) {
2080 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2081 free_nfs_cb_data(data);
2082 return -1;
2083 }
2084 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2085
2086 if (nfs_chmod_continue_internal(nfs, data) != 0) {
2087 free_nfs_cb_data(data);
2088 return -1;
2089 }
2090
2091 return 0;
2092 }
2093
2094
2095
2096 /*
2097 * Async chown()
2098 */
2099 static void nfs_chown_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2100 {
2101 struct nfs_cb_data *data = private_data;
2102 struct nfs_context *nfs = data->nfs;
2103 SETATTR3res *res;
2104
2105 if (status == RPC_STATUS_ERROR) {
2106 data->cb(-EFAULT, nfs, command_data, data->private_data);
2107 free_nfs_cb_data(data);
2108 return;
2109 }
2110 if (status == RPC_STATUS_CANCEL) {
2111 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2112 free_nfs_cb_data(data);
2113 return;
2114 }
2115
2116 res = command_data;
2117 if (res->status != NFS3_OK) {
2118 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2119 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2120 free_nfs_cb_data(data);
2121 return;
2122 }
2123
2124 data->cb(0, nfs, NULL, data->private_data);
2125 free_nfs_cb_data(data);
2126 }
2127
2128 struct nfs_chown_data {
2129 uid_t uid;
2130 gid_t gid;
2131 };
2132
2133 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2134 {
2135 SETATTR3args args;
2136 struct nfs_chown_data *chown_data = data->continue_data;
2137
2138 bzero(&args, sizeof(SETATTR3args));
2139 args.object.data.data_len = data->fh.data.data_len;
2140 args.object.data.data_val = data->fh.data.data_val;
2141 if (chown_data->uid != (uid_t)-1) {
2142 args.new_attributes.uid.set_it = 1;
2143 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2144 }
2145 if (chown_data->gid != (gid_t)-1) {
2146 args.new_attributes.gid.set_it = 1;
2147 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2148 }
2149
2150 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2151 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2152 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2153 free_nfs_cb_data(data);
2154 return -1;
2155 }
2156 return 0;
2157 }
2158
2159
2160 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
2161 {
2162 struct nfs_chown_data *chown_data;
2163
2164 chown_data = malloc(sizeof(struct nfs_chown_data));
2165 if (chown_data == NULL) {
2166 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2167 return -1;
2168 }
2169
2170 chown_data->uid = uid;
2171 chown_data->gid = gid;
2172
2173 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
2174 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2175 return -1;
2176 }
2177
2178 return 0;
2179 }
2180
2181
2182 /*
2183 * Async fchown()
2184 */
2185 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
2186 {
2187 struct nfs_cb_data *data;
2188 struct nfs_chown_data *chown_data;
2189
2190 chown_data = malloc(sizeof(struct nfs_chown_data));
2191 if (chown_data == NULL) {
2192 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2193 return -1;
2194 }
2195
2196 chown_data->uid = uid;
2197 chown_data->gid = gid;
2198
2199
2200 data = malloc(sizeof(struct nfs_cb_data));
2201 if (data == NULL) {
2202 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
2203 return -1;
2204 }
2205 bzero(data, sizeof(struct nfs_cb_data));
2206 data->nfs = nfs;
2207 data->cb = cb;
2208 data->private_data = private_data;
2209 data->continue_data = chown_data;
2210 data->fh.data.data_len = nfsfh->fh.data.data_len;
2211 data->fh.data.data_val = malloc(data->fh.data.data_len);
2212 if (data->fh.data.data_val == NULL) {
2213 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2214 free_nfs_cb_data(data);
2215 return -1;
2216 }
2217 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2218
2219
2220 if (nfs_chown_continue_internal(nfs, data) != 0) {
2221 free_nfs_cb_data(data);
2222 return -1;
2223 }
2224
2225 return 0;
2226 }
2227
2228
2229
2230
2231
2232 /*
2233 * Async utimes()
2234 */
2235 static void nfs_utimes_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2236 {
2237 struct nfs_cb_data *data = private_data;
2238 struct nfs_context *nfs = data->nfs;
2239 SETATTR3res *res;
2240
2241 if (status == RPC_STATUS_ERROR) {
2242 data->cb(-EFAULT, nfs, command_data, data->private_data);
2243 free_nfs_cb_data(data);
2244 return;
2245 }
2246 if (status == RPC_STATUS_CANCEL) {
2247 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2248 free_nfs_cb_data(data);
2249 return;
2250 }
2251
2252 res = command_data;
2253 if (res->status != NFS3_OK) {
2254 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2255 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2256 free_nfs_cb_data(data);
2257 return;
2258 }
2259
2260 data->cb(0, nfs, NULL, data->private_data);
2261 free_nfs_cb_data(data);
2262 }
2263
2264 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2265 {
2266 SETATTR3args args;
2267 struct timeval *utimes_data = data->continue_data;
2268
2269 bzero(&args, sizeof(SETATTR3args));
2270 args.object.data.data_len = data->fh.data.data_len;
2271 args.object.data.data_val = data->fh.data.data_val;
2272 if (utimes_data != NULL) {
2273 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
2274 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
2275 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
2276 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
2277 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
2278 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
2279 } else {
2280 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
2281 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
2282 }
2283
2284 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
2285 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2286 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2287 free_nfs_cb_data(data);
2288 return -1;
2289 }
2290 return 0;
2291 }
2292
2293
2294 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
2295 {
2296 struct timeval *new_times = NULL;
2297
2298 if (times != NULL) {
2299 new_times = malloc(sizeof(struct timeval)*2);
2300 if (new_times == NULL) {
2301 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2302 return -1;
2303 }
2304
2305 memcpy(new_times, times, sizeof(struct timeval)*2);
2306 }
2307
2308 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2309 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2310 return -1;
2311 }
2312
2313 return 0;
2314 }
2315
2316 /*
2317 * Async utime()
2318 */
2319 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
2320 {
2321 struct timeval *new_times = NULL;
2322
2323 if (times != NULL) {
2324 new_times = malloc(sizeof(struct timeval)*2);
2325 if (new_times == NULL) {
2326 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2327 return -1;
2328 }
2329
2330 new_times[0].tv_sec = times->actime;
2331 new_times[0].tv_usec = 0;
2332 new_times[1].tv_sec = times->modtime;
2333 new_times[1].tv_usec = 0;
2334 }
2335
2336 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2337 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2338 return -1;
2339 }
2340
2341 return 0;
2342 }
2343
2344
2345
2346
2347
2348 /*
2349 * Async access()
2350 */
2351 static void nfs_access_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2352 {
2353 ACCESS3res *res;
2354 struct nfs_cb_data *data = private_data;
2355 struct nfs_context *nfs = data->nfs;
2356 unsigned int nfsmode = 0;
2357
2358 if (status == RPC_STATUS_ERROR) {
2359 data->cb(-EFAULT, nfs, command_data, data->private_data);
2360 free_nfs_cb_data(data);
2361 return;
2362 }
2363 if (status == RPC_STATUS_CANCEL) {
2364 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2365 free_nfs_cb_data(data);
2366 return;
2367 }
2368
2369 res = command_data;
2370 if (res->status != NFS3_OK) {
2371 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));
2372 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2373 free_nfs_cb_data(data);
2374 return;
2375 }
2376
2377 if (data->continue_int & R_OK) {
2378 nfsmode |= ACCESS3_READ;
2379 }
2380 if (data->continue_int & W_OK) {
2381 nfsmode |= ACCESS3_MODIFY;
2382 }
2383 if (data->continue_int & X_OK) {
2384 nfsmode |= ACCESS3_EXECUTE;
2385 }
2386
2387 if (res->ACCESS3res_u.resok.access != nfsmode) {
2388 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
2389 nfsmode&ACCESS3_READ?'r':'-',
2390 nfsmode&ACCESS3_MODIFY?'w':'-',
2391 nfsmode&ACCESS3_EXECUTE?'x':'-',
2392 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
2393 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
2394 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
2395 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
2396 free_nfs_cb_data(data);
2397 return;
2398 }
2399
2400 data->cb(0, nfs, NULL, data->private_data);
2401 free_nfs_cb_data(data);
2402 }
2403
2404 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2405 {
2406 int nfsmode = 0;
2407
2408 if (data->continue_int & R_OK) {
2409 nfsmode |= ACCESS3_READ;
2410 }
2411 if (data->continue_int & W_OK) {
2412 nfsmode |= ACCESS3_MODIFY;
2413 }
2414 if (data->continue_int & X_OK) {
2415 nfsmode |= ACCESS3_EXECUTE;
2416 }
2417
2418 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
2419 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
2420 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2421 free_nfs_cb_data(data);
2422 return -1;
2423 }
2424 return 0;
2425 }
2426
2427 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2428 {
2429 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
2430 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2431 return -1;
2432 }
2433
2434 return 0;
2435 }
2436
2437
2438
2439 /*
2440 * Async symlink()
2441 */
2442 struct nfs_symlink_data {
2443 char *oldpath;
2444 char *newpathparent;
2445 char *newpathobject;
2446 };
2447
2448 static void free_nfs_symlink_data(void *mem)
2449 {
2450 struct nfs_symlink_data *data = mem;
2451
2452 if (data->oldpath != NULL) {
2453 free(data->oldpath);
2454 }
2455 if (data->newpathparent != NULL) {
2456 free(data->newpathparent);
2457 }
2458 if (data->newpathobject != NULL) {
2459 free(data->newpathobject);
2460 }
2461 free(data);
2462 }
2463
2464 static void nfs_symlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2465 {
2466 SYMLINK3res *res;
2467 struct nfs_cb_data *data = private_data;
2468 struct nfs_context *nfs = data->nfs;
2469 struct nfs_symlink_data *symlink_data = data->continue_data;
2470
2471 if (status == RPC_STATUS_ERROR) {
2472 data->cb(-EFAULT, nfs, command_data, data->private_data);
2473 free_nfs_cb_data(data);
2474 return;
2475 }
2476 if (status == RPC_STATUS_CANCEL) {
2477 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2478 free_nfs_cb_data(data);
2479 return;
2480 }
2481
2482 res = command_data;
2483 if (res->status != NFS3_OK) {
2484 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));
2485 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2486 free_nfs_cb_data(data);
2487 return;
2488 }
2489
2490 data->cb(0, nfs, NULL, data->private_data);
2491 free_nfs_cb_data(data);
2492 }
2493
2494 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2495 {
2496 struct nfs_symlink_data *symlink_data = data->continue_data;
2497
2498 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &data->fh, symlink_data->newpathobject, symlink_data->oldpath, data) != 0) {
2499 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
2500 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2501 free_nfs_cb_data(data);
2502 return -1;
2503 }
2504 return 0;
2505 }
2506
2507 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2508 {
2509 char *ptr;
2510 struct nfs_symlink_data *symlink_data;
2511
2512 symlink_data = malloc(sizeof(struct nfs_symlink_data));
2513 if (symlink_data == NULL) {
2514 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
2515 return -1;
2516 }
2517 bzero(symlink_data, sizeof(struct nfs_symlink_data));
2518
2519 symlink_data->oldpath = strdup(oldpath);
2520 if (symlink_data->oldpath == NULL) {
2521 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
2522 free_nfs_symlink_data(symlink_data);
2523 return -1;
2524 }
2525
2526 symlink_data->newpathparent = strdup(newpath);
2527 if (symlink_data->newpathparent == NULL) {
2528 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
2529 free_nfs_symlink_data(symlink_data);
2530 return -1;
2531 }
2532
2533 ptr = strrchr(symlink_data->newpathparent, '/');
2534 if (ptr == NULL) {
2535 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
2536 free_nfs_symlink_data(symlink_data);
2537 return -1;
2538 }
2539 *ptr = 0;
2540 ptr++;
2541
2542 symlink_data->newpathobject = strdup(ptr);
2543 if (symlink_data->newpathobject == NULL) {
2544 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
2545 free_nfs_symlink_data(symlink_data);
2546 return -1;
2547 }
2548
2549 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
2550 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2551 return -1;
2552 }
2553
2554 return 0;
2555 }
2556
2557
2558
2559 /*
2560 * Async rename()
2561 */
2562 struct nfs_rename_data {
2563 char *oldpath;
2564 char *oldobject;
2565 struct nfs_fh3 olddir;
2566 char *newpath;
2567 char *newobject;
2568 struct nfs_fh3 newdir;
2569 };
2570
2571 static void free_nfs_rename_data(void *mem)
2572 {
2573 struct nfs_rename_data *data = mem;
2574
2575 if (data->oldpath != NULL) {
2576 free(data->oldpath);
2577 }
2578 if (data->olddir.data.data_val != NULL) {
2579 free(data->olddir.data.data_val);
2580 }
2581 if (data->newpath != NULL) {
2582 free(data->newpath);
2583 }
2584 if (data->newdir.data.data_val != NULL) {
2585 free(data->newdir.data.data_val);
2586 }
2587 free(data);
2588 }
2589
2590 static void nfs_rename_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2591 {
2592 RENAME3res *res;
2593 struct nfs_cb_data *data = private_data;
2594 struct nfs_context *nfs = data->nfs;
2595 struct nfs_rename_data *rename_data = data->continue_data;
2596
2597 if (status == RPC_STATUS_ERROR) {
2598 data->cb(-EFAULT, nfs, command_data, data->private_data);
2599 free_nfs_cb_data(data);
2600 return;
2601 }
2602 if (status == RPC_STATUS_CANCEL) {
2603 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2604 free_nfs_cb_data(data);
2605 return;
2606 }
2607
2608 res = command_data;
2609 if (res->status != NFS3_OK) {
2610 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));
2611 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2612 free_nfs_cb_data(data);
2613 return;
2614 }
2615
2616 data->cb(0, nfs, NULL, data->private_data);
2617 free_nfs_cb_data(data);
2618 }
2619
2620 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2621 {
2622 struct nfs_rename_data *rename_data = data->continue_data;
2623
2624 /* steal the filehandle */
2625 rename_data->newdir.data.data_len = data->fh.data.data_len;
2626 rename_data->newdir.data.data_val = data->fh.data.data_val;
2627 data->fh.data.data_val = NULL;
2628
2629 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
2630 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
2631 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2632 free_nfs_cb_data(data);
2633 return -1;
2634 }
2635 return 0;
2636 }
2637
2638
2639 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2640 {
2641 struct nfs_rename_data *rename_data = data->continue_data;
2642
2643 /* steal the filehandle */
2644 rename_data->olddir.data.data_len = data->fh.data.data_len;
2645 rename_data->olddir.data.data_val = data->fh.data.data_val;
2646 data->fh.data.data_val = NULL;
2647
2648 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) {
2649 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
2650 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2651 free_nfs_cb_data(data);
2652 return -1;
2653 }
2654 data->continue_data = NULL;
2655 free_nfs_cb_data(data);
2656
2657 return 0;
2658 }
2659
2660
2661 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2662 {
2663 char *ptr;
2664 struct nfs_rename_data *rename_data;
2665
2666 rename_data = malloc(sizeof(struct nfs_rename_data));
2667 if (rename_data == NULL) {
2668 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
2669 return -1;
2670 }
2671 bzero(rename_data, sizeof(struct nfs_rename_data));
2672
2673 rename_data->oldpath = strdup(oldpath);
2674 if (rename_data->oldpath == NULL) {
2675 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
2676 free_nfs_rename_data(rename_data);
2677 return -1;
2678 }
2679 ptr = strrchr(rename_data->oldpath, '/');
2680 if (ptr == NULL) {
2681 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
2682 free_nfs_rename_data(rename_data);
2683 return -1;
2684 }
2685 *ptr = 0;
2686 ptr++;
2687 rename_data->oldobject = ptr;
2688
2689
2690 rename_data->newpath = strdup(newpath);
2691 if (rename_data->newpath == NULL) {
2692 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
2693 free_nfs_rename_data(rename_data);
2694 return -1;
2695 }
2696 ptr = strrchr(rename_data->newpath, '/');
2697 if (ptr == NULL) {
2698 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
2699 free_nfs_rename_data(rename_data);
2700 return -1;
2701 }
2702 *ptr = 0;
2703 ptr++;
2704 rename_data->newobject = ptr;
2705
2706
2707 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
2708 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2709 return -1;
2710 }
2711
2712 return 0;
2713 }
2714
2715
2716 /*
2717 * Async link()
2718 */
2719 struct nfs_link_data {
2720 char *oldpath;
2721 struct nfs_fh3 oldfh;
2722 char *newpath;
2723 char *newobject;
2724 struct nfs_fh3 newdir;
2725 };
2726
2727 static void free_nfs_link_data(void *mem)
2728 {
2729 struct nfs_link_data *data = mem;
2730
2731 if (data->oldpath != NULL) {
2732 free(data->oldpath);
2733 }
2734 if (data->oldfh.data.data_val != NULL) {
2735 free(data->oldfh.data.data_val);
2736 }
2737 if (data->newpath != NULL) {
2738 free(data->newpath);
2739 }
2740 if (data->newdir.data.data_val != NULL) {
2741 free(data->newdir.data.data_val);
2742 }
2743 free(data);
2744 }
2745
2746 static void nfs_link_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2747 {
2748 LINK3res *res;
2749 struct nfs_cb_data *data = private_data;
2750 struct nfs_context *nfs = data->nfs;
2751 struct nfs_link_data *link_data = data->continue_data;
2752
2753 if (status == RPC_STATUS_ERROR) {
2754 data->cb(-EFAULT, nfs, command_data, data->private_data);
2755 free_nfs_cb_data(data);
2756 return;
2757 }
2758 if (status == RPC_STATUS_CANCEL) {
2759 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2760 free_nfs_cb_data(data);
2761 return;
2762 }
2763
2764 res = command_data;
2765 if (res->status != NFS3_OK) {
2766 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));
2767 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2768 free_nfs_cb_data(data);
2769 return;
2770 }
2771
2772 data->cb(0, nfs, NULL, data->private_data);
2773 free_nfs_cb_data(data);
2774 }
2775
2776 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2777 {
2778 struct nfs_link_data *link_data = data->continue_data;
2779
2780 /* steal the filehandle */
2781 link_data->newdir.data.data_len = data->fh.data.data_len;
2782 link_data->newdir.data.data_val = data->fh.data.data_val;
2783 data->fh.data.data_val = NULL;
2784
2785 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
2786 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
2787 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2788 free_nfs_cb_data(data);
2789 return -1;
2790 }
2791 return 0;
2792 }
2793
2794
2795 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2796 {
2797 struct nfs_link_data *link_data = data->continue_data;
2798
2799 /* steal the filehandle */
2800 link_data->oldfh.data.data_len = data->fh.data.data_len;
2801 link_data->oldfh.data.data_val = data->fh.data.data_val;
2802 data->fh.data.data_val = NULL;
2803
2804 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) {
2805 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
2806 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2807 free_nfs_cb_data(data);
2808 return -1;
2809 }
2810 data->continue_data = NULL;
2811 free_nfs_cb_data(data);
2812
2813 return 0;
2814 }
2815
2816
2817 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2818 {
2819 char *ptr;
2820 struct nfs_link_data *link_data;
2821
2822 link_data = malloc(sizeof(struct nfs_link_data));
2823 if (link_data == NULL) {
2824 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
2825 return -1;
2826 }
2827 bzero(link_data, sizeof(struct nfs_link_data));
2828
2829 link_data->oldpath = strdup(oldpath);
2830 if (link_data->oldpath == NULL) {
2831 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
2832 free_nfs_link_data(link_data);
2833 return -1;
2834 }
2835
2836 link_data->newpath = strdup(newpath);
2837 if (link_data->newpath == NULL) {
2838 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
2839 free_nfs_link_data(link_data);
2840 return -1;
2841 }
2842 ptr = strrchr(link_data->newpath, '/');
2843 if (ptr == NULL) {
2844 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
2845 free_nfs_link_data(link_data);
2846 return -1;
2847 }
2848 *ptr = 0;
2849 ptr++;
2850 link_data->newobject = ptr;
2851
2852
2853 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
2854 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2855 return -1;
2856 }
2857
2858 return 0;
2859 }
2860
2861
2862 //qqq replace later with lseek()
2863 off_t nfs_get_current_offset(struct nfsfh *nfsfh)
2864 {
2865 return nfsfh->offset;
2866 }
2867
2868
2869
2870 /*
2871 * Get the maximum supported READ3 size by the server
2872 */
2873 size_t nfs_get_readmax(struct nfs_context *nfs)
2874 {
2875 return nfs->readmax;
2876 }
2877
2878 /*
2879 * Get the maximum supported WRITE3 size by the server
2880 */
2881 size_t nfs_get_writemax(struct nfs_context *nfs)
2882 {
2883 return nfs->writemax;
2884 }
2885
2886 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
2887 {
2888 va_list ap;
2889 char *str = NULL;
2890
2891 va_start(ap, error_string);
2892 vasprintf(&str, error_string, ap);
2893 if (nfs->rpc->error_string != NULL) {
2894 free(nfs->rpc->error_string);
2895 }
2896 nfs->rpc->error_string = str;
2897 va_end(ap);
2898 }
2899
2900
2901
2902 struct mount_cb_data {
2903 rpc_cb cb;
2904 void *private_data;
2905 char *server;
2906 };
2907
2908 static void free_mount_cb_data(struct mount_cb_data *data)
2909 {
2910 if (data->server != NULL) {
2911 free(data->server);
2912 data->server = NULL;
2913 }
2914
2915 free(data);
2916 }
2917
2918 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2919 {
2920 struct mount_cb_data *data = private_data;
2921
2922 if (status == RPC_STATUS_ERROR) {
2923 data->cb(rpc, -EFAULT, command_data, data->private_data);
2924 free_mount_cb_data(data);
2925 return;
2926 }
2927 if (status == RPC_STATUS_CANCEL) {
2928 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2929 free_mount_cb_data(data);
2930 return;
2931 }
2932
2933 data->cb(rpc, 0, command_data, data->private_data);
2934 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
2935 rpc_set_error(rpc, "Failed to disconnect\n");
2936 }
2937 free_mount_cb_data(data);
2938 }
2939
2940 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2941 {
2942 struct mount_cb_data *data = private_data;
2943
2944 if (status == RPC_STATUS_ERROR) {
2945 data->cb(rpc, -EFAULT, command_data, data->private_data);
2946 free_mount_cb_data(data);
2947 return;
2948 }
2949 if (status == RPC_STATUS_CANCEL) {
2950 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2951 free_mount_cb_data(data);
2952 return;
2953 }
2954
2955 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
2956 data->cb(rpc, -ENOMEM, command_data, data->private_data);
2957 free_mount_cb_data(data);
2958 return;
2959 }
2960 }
2961
2962 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2963 {
2964 struct mount_cb_data *data = private_data;
2965 uint32_t mount_port;
2966
2967 if (status == RPC_STATUS_ERROR) {
2968 data->cb(rpc, -EFAULT, command_data, data->private_data);
2969 free_mount_cb_data(data);
2970 return;
2971 }
2972 if (status == RPC_STATUS_CANCEL) {
2973 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2974 free_mount_cb_data(data);
2975 return;
2976 }
2977
2978 mount_port = *(uint32_t *)command_data;
2979 if (mount_port == 0) {
2980 rpc_set_error(rpc, "RPC error. Mount program is not available");
2981 data->cb(rpc, -ENOENT, command_data, data->private_data);
2982 free_mount_cb_data(data);
2983 return;
2984 }
2985
2986 rpc_disconnect(rpc, "normal disconnect");
2987 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
2988 data->cb(rpc, -ENOMEM, command_data, data->private_data);
2989 free_mount_cb_data(data);
2990 return;
2991 }
2992 }
2993
2994 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2995 {
2996 struct mount_cb_data *data = private_data;
2997
2998 if (status == RPC_STATUS_ERROR) {
2999 data->cb(rpc, -EFAULT, command_data, data->private_data);
3000 free_mount_cb_data(data);
3001 return;
3002 }
3003 if (status == RPC_STATUS_CANCEL) {
3004 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3005 free_mount_cb_data(data);
3006 return;
3007 }
3008
3009 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, mount_export_3_cb, private_data) != 0) {
3010 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3011 free_mount_cb_data(data);
3012 return;
3013 }
3014 }
3015
3016 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3017 {
3018 struct mount_cb_data *data = private_data;
3019
3020 if (status == RPC_STATUS_ERROR) {
3021 data->cb(rpc, -EFAULT, command_data, data->private_data);
3022 free_mount_cb_data(data);
3023 return;
3024 }
3025 if (status == RPC_STATUS_CANCEL) {
3026 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3027 free_mount_cb_data(data);
3028 return;
3029 }
3030
3031 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
3032 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3033 free_mount_cb_data(data);
3034 return;
3035 }
3036 }
3037
3038 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
3039 {
3040 struct mount_cb_data *data;
3041
3042 data = malloc(sizeof(struct mount_cb_data));
3043 if (data == NULL) {
3044 return -1;
3045 }
3046 bzero(data, sizeof(struct mount_cb_data));
3047 data->cb = cb;
3048 data->private_data = private_data;
3049 data->server = strdup(server);
3050 if (data->server == NULL) {
3051 free_mount_cb_data(data);
3052 return -1;
3053 }
3054 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
3055 free_mount_cb_data(data);
3056 return -1;
3057 }
3058
3059 return 0;
3060 }
3061
3062 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
3063 {
3064 return nfs->rpc;
3065 }
3066
3067 const char *nfs_get_server(struct nfs_context *nfs) {
3068 return nfs->server;
3069 }
3070
3071 const char *nfs_get_export(struct nfs_context *nfs) {
3072 return nfs->export;
3073 }
libnfs Piment Noir Debian package repository