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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 st.st_blksize = 4096;
675 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
676 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
677 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
678 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
679
680 data->cb(0, nfs, &st, data->private_data);
681 free_nfs_cb_data(data);
682 }
683
684 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
685 {
686 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
687 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
688 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
689 free_nfs_cb_data(data);
690 return -1;
691 }
692 return 0;
693 }
694
695 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
696 {
697 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
698 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
699 return -1;
700 }
701
702 return 0;
703 }
704
705
706
707
708
709 /*
710 * Async open()
711 */
712 static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
713 {
714 ACCESS3res *res;
715 struct nfs_cb_data *data = private_data;
716 struct nfs_context *nfs = data->nfs;
717 struct nfsfh *nfsfh;
718 unsigned int nfsmode = 0;
719
720 if (status == RPC_STATUS_ERROR) {
721 data->cb(-EFAULT, nfs, command_data, data->private_data);
722 free_nfs_cb_data(data);
723 return;
724 }
725 if (status == RPC_STATUS_CANCEL) {
726 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
727 free_nfs_cb_data(data);
728 return;
729 }
730
731 res = command_data;
732 if (res->status != NFS3_OK) {
733 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));
734 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
735 free_nfs_cb_data(data);
736 return;
737 }
738
739 if (data->continue_int & O_WRONLY) {
740 nfsmode |= ACCESS3_MODIFY;
741 }
742 if (data->continue_int & O_RDWR) {
743 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
744 }
745 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
746 nfsmode |= ACCESS3_READ;
747 }
748
749
750 if (res->ACCESS3res_u.resok.access != nfsmode) {
751 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
752 nfsmode&ACCESS3_READ?'r':'-',
753 nfsmode&ACCESS3_MODIFY?'w':'-',
754 nfsmode&ACCESS3_EXECUTE?'x':'-',
755 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
756 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
757 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
758 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
759 free_nfs_cb_data(data);
760 return;
761 }
762
763 nfsfh = malloc(sizeof(struct nfsfh));
764 if (nfsfh == NULL) {
765 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
766 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
767 free_nfs_cb_data(data);
768 return;
769 }
770 bzero(nfsfh, sizeof(struct nfsfh));
771
772 if (data->continue_int & O_SYNC) {
773 nfsfh->is_sync = 1;
774 }
775
776 /* steal the filehandle */
777 nfsfh->fh.data.data_len = data->fh.data.data_len;
778 nfsfh->fh.data.data_val = data->fh.data.data_val;
779 data->fh.data.data_val = NULL;
780
781 data->cb(0, nfs, nfsfh, data->private_data);
782 free_nfs_cb_data(data);
783 }
784
785 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
786 {
787 int nfsmode = 0;
788
789 if (data->continue_int & O_WRONLY) {
790 nfsmode |= ACCESS3_MODIFY;
791 }
792 if (data->continue_int & O_RDWR) {
793 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
794 }
795 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
796 nfsmode |= ACCESS3_READ;
797 }
798
799 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
800 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
801 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
802 free_nfs_cb_data(data);
803 return -1;
804 }
805 return 0;
806 }
807
808 int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
809 {
810 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
811 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
812 return -1;
813 }
814
815 return 0;
816 }
817
818
819
820
821
822 /*
823 * Async pread()
824 */
825 static void nfs_pread_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
826 {
827 struct nfs_cb_data *data = private_data;
828 struct nfs_context *nfs = data->nfs;
829 READ3res *res;
830
831 if (status == RPC_STATUS_ERROR) {
832 data->cb(-EFAULT, nfs, command_data, data->private_data);
833 free_nfs_cb_data(data);
834 return;
835 }
836 if (status == RPC_STATUS_CANCEL) {
837 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
838 free_nfs_cb_data(data);
839 return;
840 }
841
842 res = command_data;
843 if (res->status != NFS3_OK) {
844 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
845 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
846 free_nfs_cb_data(data);
847 return;
848 }
849
850 data->nfsfh->offset += res->READ3res_u.resok.count;
851 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
852 free_nfs_cb_data(data);
853 }
854
855 static void nfs_pread_mcb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
856 {
857 struct nfs_mcb_data *mdata = private_data;
858 struct nfs_cb_data *data = mdata->data;
859 struct nfs_context *nfs = data->nfs;
860 READ3res *res;
861
862 data->num_calls--;
863
864 if (status == RPC_STATUS_ERROR) {
865 /* flag the failure but do not invoke callback until we have received all responses */
866 data->error = 1;
867 }
868 if (status == RPC_STATUS_CANCEL) {
869 /* flag the cancellation but do not invoke callback until we have received all responses */
870 data->cancel = 1;
871 }
872
873 /* reassemble the data into the buffer */
874 if (status == RPC_STATUS_SUCCESS) {
875 res = command_data;
876 if (res->status != NFS3_OK) {
877 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
878 data->error = 1;
879 } else {
880 if (res->READ3res_u.resok.count > 0) {
881 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
882 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
883 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
884 }
885 }
886 }
887 }
888
889 if (data->num_calls > 0) {
890 /* still waiting for more replies */
891 free(mdata);
892 return;
893 }
894
895 if (data->error != 0) {
896 data->cb(-EFAULT, nfs, command_data, data->private_data);
897 free_nfs_cb_data(data);
898 free(mdata);
899 return;
900 }
901 if (data->cancel != 0) {
902 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
903 free_nfs_cb_data(data);
904 free(mdata);
905 return;
906 }
907
908 data->nfsfh->offset = data->max_offset;
909 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
910
911 free_nfs_cb_data(data);
912 free(mdata);
913 }
914
915 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, nfs_cb cb, void *private_data)
916 {
917 struct nfs_cb_data *data;
918
919 data = malloc(sizeof(struct nfs_cb_data));
920 if (data == NULL) {
921 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
922 return -1;
923 }
924 bzero(data, sizeof(struct nfs_cb_data));
925 data->nfs = nfs;
926 data->cb = cb;
927 data->private_data = private_data;
928 data->nfsfh = nfsfh;
929
930 nfsfh->offset = offset;
931
932 if (count <= nfs_get_readmax(nfs)) {
933 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
934 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
935 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
936 free_nfs_cb_data(data);
937 return -1;
938 }
939 return 0;
940 }
941
942 /* trying to read more than maximum server read size, we has to chop it up into smaller
943 * reads and collect into a reassembly buffer.
944 * we send all reads in parallell so that performance is still good.
945 */
946 data->max_offset = offset;
947 data->start_offset = offset;
948
949 data->buffer = malloc(count);
950 if (data->buffer == NULL) {
951 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
952 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
953 free_nfs_cb_data(data);
954 return -1;
955 }
956
957 while (count > 0) {
958 size_t readcount = count;
959 struct nfs_mcb_data *mdata;
960
961 if (readcount > nfs_get_readmax(nfs)) {
962 readcount = nfs_get_readmax(nfs);
963 }
964
965 mdata = malloc(sizeof(struct nfs_mcb_data));
966 if (mdata == NULL) {
967 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
968 return -1;
969 }
970 bzero(mdata, sizeof(struct nfs_mcb_data));
971 mdata->data = data;
972 mdata->offset = offset;
973 mdata->count = readcount;
974 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
975 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
976 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
977 free(mdata);
978 return -1;
979 }
980
981 count -= readcount;
982 offset += readcount;
983 data->num_calls++;
984 }
985
986 return 0;
987 }
988
989 /*
990 * Async read()
991 */
992 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, nfs_cb cb, void *private_data)
993 {
994 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
995 }
996
997
998
999 /*
1000 * Async pwrite()
1001 */
1002 static void nfs_pwrite_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1003 {
1004 struct nfs_cb_data *data = private_data;
1005 struct nfs_context *nfs = data->nfs;
1006 WRITE3res *res;
1007
1008 if (status == RPC_STATUS_ERROR) {
1009 data->cb(-EFAULT, nfs, command_data, data->private_data);
1010 free_nfs_cb_data(data);
1011 return;
1012 }
1013 if (status == RPC_STATUS_CANCEL) {
1014 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1015 free_nfs_cb_data(data);
1016 return;
1017 }
1018
1019 res = command_data;
1020 if (res->status != NFS3_OK) {
1021 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1022 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1023 free_nfs_cb_data(data);
1024 return;
1025 }
1026
1027 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1028 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1029 free_nfs_cb_data(data);
1030 }
1031
1032 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)
1033 {
1034 struct nfs_cb_data *data;
1035
1036 data = malloc(sizeof(struct nfs_cb_data));
1037 if (data == NULL) {
1038 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1039 return -1;
1040 }
1041 bzero(data, sizeof(struct nfs_cb_data));
1042 data->nfs = nfs;
1043 data->cb = cb;
1044 data->private_data = private_data;
1045 data->nfsfh = nfsfh;
1046
1047 nfsfh->offset = offset;
1048 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
1049 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1050 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1051 free_nfs_cb_data(data);
1052 return -1;
1053 }
1054 return 0;
1055 }
1056
1057 /*
1058 * Async write()
1059 */
1060 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf, nfs_cb cb, void *private_data)
1061 {
1062 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1063 }
1064
1065
1066
1067
1068 /*
1069 * close
1070 */
1071
1072 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1073 {
1074 if (nfsfh->fh.data.data_val != NULL){
1075 free(nfsfh->fh.data.data_val);
1076 nfsfh->fh.data.data_val = NULL;
1077 }
1078 free(nfsfh);
1079
1080 cb(0, nfs, NULL, private_data);
1081 return 0;
1082 };
1083
1084
1085
1086
1087
1088 /*
1089 * Async fstat()
1090 */
1091 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1092 {
1093 struct nfs_cb_data *data;
1094
1095 data = malloc(sizeof(struct nfs_cb_data));
1096 if (data == NULL) {
1097 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1098 return -1;
1099 }
1100 bzero(data, sizeof(struct nfs_cb_data));
1101 data->nfs = nfs;
1102 data->cb = cb;
1103 data->private_data = private_data;
1104
1105 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
1106 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1107 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1108 free_nfs_cb_data(data);
1109 return -1;
1110 }
1111 return 0;
1112 }
1113
1114
1115
1116 /*
1117 * Async fsync()
1118 */
1119 static void nfs_fsync_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1120 {
1121 struct nfs_cb_data *data = private_data;
1122 struct nfs_context *nfs = data->nfs;
1123 COMMIT3res *res;
1124
1125 if (status == RPC_STATUS_ERROR) {
1126 data->cb(-EFAULT, nfs, command_data, data->private_data);
1127 free_nfs_cb_data(data);
1128 return;
1129 }
1130 if (status == RPC_STATUS_CANCEL) {
1131 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1132 free_nfs_cb_data(data);
1133 return;
1134 }
1135
1136 res = command_data;
1137 if (res->status != NFS3_OK) {
1138 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1139 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1140 free_nfs_cb_data(data);
1141 return;
1142 }
1143
1144 data->cb(0, nfs, NULL, data->private_data);
1145 free_nfs_cb_data(data);
1146 }
1147
1148 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1149 {
1150 struct nfs_cb_data *data;
1151
1152 data = malloc(sizeof(struct nfs_cb_data));
1153 if (data == NULL) {
1154 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1155 return -1;
1156 }
1157 bzero(data, sizeof(struct nfs_cb_data));
1158 data->nfs = nfs;
1159 data->cb = cb;
1160 data->private_data = private_data;
1161
1162 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1163 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1164 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1165 free_nfs_cb_data(data);
1166 return -1;
1167 }
1168 return 0;
1169 }
1170
1171
1172
1173
1174 /*
1175 * Async ftruncate()
1176 */
1177 static void nfs_ftruncate_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1178 {
1179 struct nfs_cb_data *data = private_data;
1180 struct nfs_context *nfs = data->nfs;
1181 SETATTR3res *res;
1182
1183 if (status == RPC_STATUS_ERROR) {
1184 data->cb(-EFAULT, nfs, command_data, data->private_data);
1185 free_nfs_cb_data(data);
1186 return;
1187 }
1188 if (status == RPC_STATUS_CANCEL) {
1189 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1190 free_nfs_cb_data(data);
1191 return;
1192 }
1193
1194 res = command_data;
1195 if (res->status != NFS3_OK) {
1196 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1197 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1198 free_nfs_cb_data(data);
1199 return;
1200 }
1201
1202 data->cb(0, nfs, NULL, data->private_data);
1203 free_nfs_cb_data(data);
1204 }
1205
1206 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length, nfs_cb cb, void *private_data)
1207 {
1208 struct nfs_cb_data *data;
1209 SETATTR3args args;
1210
1211 data = malloc(sizeof(struct nfs_cb_data));
1212 if (data == NULL) {
1213 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1214 return -1;
1215 }
1216 bzero(data, sizeof(struct nfs_cb_data));
1217 data->nfs = nfs;
1218 data->cb = cb;
1219 data->private_data = private_data;
1220
1221 bzero(&args, sizeof(SETATTR3args));
1222 args.object.data.data_len = nfsfh->fh.data.data_len;
1223 args.object.data.data_val = nfsfh->fh.data.data_val;
1224 args.new_attributes.size.set_it = 1;
1225 args.new_attributes.size.set_size3_u.size = length;
1226
1227 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1228 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1229 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1230 free_nfs_cb_data(data);
1231 return -1;
1232 }
1233 return 0;
1234 }
1235
1236
1237 /*
1238 * Async truncate()
1239 */
1240 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1241 {
1242 off_t offset = data->continue_int;
1243 struct nfsfh nfsfh;
1244
1245 nfsfh.fh.data.data_val = data->fh.data.data_val;
1246 nfsfh.fh.data.data_len = data->fh.data.data_len;
1247
1248 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1249 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1250 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1251 free_nfs_cb_data(data);
1252 return -1;
1253 }
1254 free_nfs_cb_data(data);
1255 return 0;
1256 }
1257
1258 int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length, nfs_cb cb, void *private_data)
1259 {
1260 off_t offset;
1261
1262 offset = length;
1263
1264 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1265 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1266 return -1;
1267 }
1268
1269 return 0;
1270 }
1271
1272
1273
1274
1275 /*
1276 * Async mkdir()
1277 */
1278 static void nfs_mkdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1279 {
1280 MKDIR3res *res;
1281 struct nfs_cb_data *data = private_data;
1282 struct nfs_context *nfs = data->nfs;
1283 char *str = data->continue_data;
1284
1285 str = &str[strlen(str) + 1];
1286
1287 if (status == RPC_STATUS_ERROR) {
1288 data->cb(-EFAULT, nfs, command_data, data->private_data);
1289 free_nfs_cb_data(data);
1290 return;
1291 }
1292 if (status == RPC_STATUS_CANCEL) {
1293 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1294 free_nfs_cb_data(data);
1295 return;
1296 }
1297
1298 res = command_data;
1299 if (res->status != NFS3_OK) {
1300 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));
1301 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1302 free_nfs_cb_data(data);
1303 return;
1304 }
1305
1306 data->cb(0, nfs, NULL, data->private_data);
1307 free_nfs_cb_data(data);
1308 }
1309
1310 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1311 {
1312 char *str = data->continue_data;
1313
1314 str = &str[strlen(str) + 1];
1315
1316 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &data->fh, str, data) != 0) {
1317 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1318 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1319 free_nfs_cb_data(data);
1320 return -1;
1321 }
1322 return 0;
1323 }
1324
1325 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1326 {
1327 char *new_path;
1328 char *ptr;
1329
1330 new_path = strdup(path);
1331 if (new_path == NULL) {
1332 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1333 return -1;
1334 }
1335
1336 ptr = strrchr(new_path, '/');
1337 if (ptr == NULL) {
1338 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1339 return -1;
1340 }
1341 *ptr = 0;
1342
1343 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1344 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1345 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1346 return -1;
1347 }
1348
1349 return 0;
1350 }
1351
1352
1353
1354
1355
1356 /*
1357 * Async rmdir()
1358 */
1359 static void nfs_rmdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1360 {
1361 RMDIR3res *res;
1362 struct nfs_cb_data *data = private_data;
1363 struct nfs_context *nfs = data->nfs;
1364 char *str = data->continue_data;
1365
1366 str = &str[strlen(str) + 1];
1367
1368 if (status == RPC_STATUS_ERROR) {
1369 data->cb(-EFAULT, nfs, command_data, data->private_data);
1370 free_nfs_cb_data(data);
1371 return;
1372 }
1373 if (status == RPC_STATUS_CANCEL) {
1374 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1375 free_nfs_cb_data(data);
1376 return;
1377 }
1378
1379 res = command_data;
1380 if (res->status != NFS3_OK) {
1381 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));
1382 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1383 free_nfs_cb_data(data);
1384 return;
1385 }
1386
1387 data->cb(0, nfs, NULL, data->private_data);
1388 free_nfs_cb_data(data);
1389 }
1390
1391 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1392 {
1393 char *str = data->continue_data;
1394
1395 str = &str[strlen(str) + 1];
1396
1397 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1398 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1399 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1400 free_nfs_cb_data(data);
1401 return -1;
1402 }
1403 return 0;
1404 }
1405
1406 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1407 {
1408 char *new_path;
1409 char *ptr;
1410
1411 new_path = strdup(path);
1412 if (new_path == NULL) {
1413 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1414 return -1;
1415 }
1416
1417 ptr = strrchr(new_path, '/');
1418 if (ptr == NULL) {
1419 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1420 return -1;
1421 }
1422 *ptr = 0;
1423
1424 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1425 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
1426 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1427 return -1;
1428 }
1429
1430 return 0;
1431 }
1432
1433
1434
1435
1436 /*
1437 * Async creat()
1438 */
1439 static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1440 {
1441 LOOKUP3res *res;
1442 struct nfs_cb_data *data = private_data;
1443 struct nfs_context *nfs = data->nfs;
1444 struct nfsfh *nfsfh;
1445 char *str = data->continue_data;
1446
1447 if (status == RPC_STATUS_ERROR) {
1448 data->cb(-EFAULT, nfs, command_data, data->private_data);
1449 free_nfs_cb_data(data);
1450 return;
1451 }
1452 if (status == RPC_STATUS_CANCEL) {
1453 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1454 free_nfs_cb_data(data);
1455 return;
1456 }
1457
1458 str = &str[strlen(str) + 1];
1459 res = command_data;
1460 if (res->status != NFS3_OK) {
1461 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));
1462 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1463
1464 return;
1465 }
1466
1467 nfsfh = malloc(sizeof(struct nfsfh));
1468 if (nfsfh == NULL) {
1469 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1470 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1471 free_nfs_cb_data(data);
1472 return;
1473 }
1474 bzero(nfsfh, sizeof(struct nfsfh));
1475
1476 /* steal the filehandle */
1477 nfsfh->fh.data.data_len = data->fh.data.data_len;
1478 nfsfh->fh.data.data_val = data->fh.data.data_val;
1479 data->fh.data.data_val = NULL;
1480
1481 data->cb(0, nfs, nfsfh, data->private_data);
1482 free_nfs_cb_data(data);
1483 }
1484
1485
1486
1487 static void nfs_creat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1488 {
1489 CREATE3res *res;
1490 struct nfs_cb_data *data = private_data;
1491 struct nfs_context *nfs = data->nfs;
1492 char *str = data->continue_data;
1493
1494 if (status == RPC_STATUS_ERROR) {
1495 data->cb(-EFAULT, nfs, command_data, data->private_data);
1496 free_nfs_cb_data(data);
1497 return;
1498 }
1499 if (status == RPC_STATUS_CANCEL) {
1500 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1501 free_nfs_cb_data(data);
1502 return;
1503 }
1504
1505 str = &str[strlen(str) + 1];
1506 res = command_data;
1507 if (res->status != NFS3_OK) {
1508 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));
1509 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1510
1511 return;
1512 }
1513
1514 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
1515 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
1516 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1517 free_nfs_cb_data(data);
1518 return;
1519 }
1520 return;
1521 }
1522
1523 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1524 {
1525 char *str = data->continue_data;
1526
1527 str = &str[strlen(str) + 1];
1528
1529 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &data->fh, str, data->continue_int, data) != 0) {
1530 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
1531 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1532 free_nfs_cb_data(data);
1533 return -1;
1534 }
1535 return 0;
1536 }
1537
1538 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1539 {
1540 char *new_path;
1541 char *ptr;
1542
1543 new_path = strdup(path);
1544 if (new_path == NULL) {
1545 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1546 return -1;
1547 }
1548
1549 ptr = strrchr(new_path, '/');
1550 if (ptr == NULL) {
1551 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1552 return -1;
1553 }
1554 *ptr = 0;
1555
1556 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1557 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
1558 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1559 return -1;
1560 }
1561
1562 return 0;
1563 }
1564
1565
1566
1567
1568 /*
1569 * Async unlink()
1570 */
1571 static void nfs_unlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1572 {
1573 REMOVE3res *res;
1574 struct nfs_cb_data *data = private_data;
1575 struct nfs_context *nfs = data->nfs;
1576 char *str = data->continue_data;
1577
1578 str = &str[strlen(str) + 1];
1579
1580 if (status == RPC_STATUS_ERROR) {
1581 data->cb(-EFAULT, nfs, command_data, data->private_data);
1582 free_nfs_cb_data(data);
1583 return;
1584 }
1585 if (status == RPC_STATUS_CANCEL) {
1586 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1587 free_nfs_cb_data(data);
1588 return;
1589 }
1590
1591 res = command_data;
1592 if (res->status != NFS3_OK) {
1593 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));
1594 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1595 free_nfs_cb_data(data);
1596 return;
1597 }
1598
1599 data->cb(0, nfs, NULL, data->private_data);
1600 free_nfs_cb_data(data);
1601 }
1602
1603 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1604 {
1605 char *str = data->continue_data;
1606
1607 str = &str[strlen(str) + 1];
1608
1609 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
1610 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
1611 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1612 free_nfs_cb_data(data);
1613 return -1;
1614 }
1615 return 0;
1616 }
1617
1618 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1619 {
1620 char *new_path;
1621 char *ptr;
1622
1623 new_path = strdup(path);
1624 if (new_path == NULL) {
1625 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1626 return -1;
1627 }
1628
1629 ptr = strrchr(new_path, '/');
1630 if (ptr == NULL) {
1631 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1632 return -1;
1633 }
1634 *ptr = 0;
1635
1636 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1637 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
1638 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1639 return -1;
1640 }
1641
1642 return 0;
1643 }
1644
1645
1646
1647
1648
1649 /*
1650 * Async opendir()
1651 */
1652 static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1653 {
1654 READDIRPLUS3res *res;
1655 struct nfs_cb_data *data = private_data;
1656 struct nfs_context *nfs = data->nfs;
1657 struct nfsdir *nfsdir = data->continue_data;;
1658 struct entryplus3 *entry;
1659 uint64_t cookie;
1660
1661 if (status == RPC_STATUS_ERROR) {
1662 data->cb(-EFAULT, nfs, command_data, data->private_data);
1663 nfs_free_nfsdir(nfsdir);
1664 data->continue_data = NULL;
1665 free_nfs_cb_data(data);
1666 return;
1667 }
1668 if (status == RPC_STATUS_CANCEL) {
1669 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1670 nfs_free_nfsdir(nfsdir);
1671 data->continue_data = NULL;
1672 free_nfs_cb_data(data);
1673 return;
1674 }
1675
1676 res = command_data;
1677 if (res->status != NFS3_OK) {
1678 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));
1679 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1680 nfs_free_nfsdir(nfsdir);
1681 data->continue_data = NULL;
1682 free_nfs_cb_data(data);
1683 return;
1684 }
1685
1686 entry =res->READDIRPLUS3res_u.resok.reply.entries;
1687 while (entry != NULL) {
1688 struct nfsdirent *nfsdirent;
1689
1690 nfsdirent = malloc(sizeof(struct nfsdirent));
1691 if (nfsdirent == NULL) {
1692 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
1693 nfs_free_nfsdir(nfsdir);
1694 data->continue_data = NULL;
1695 free_nfs_cb_data(data);
1696 return;
1697 }
1698 bzero(nfsdirent, sizeof(struct nfsdirent));
1699 nfsdirent->name = strdup(entry->name);
1700 if (nfsdirent->name == NULL) {
1701 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
1702 nfs_free_nfsdir(nfsdir);
1703 data->continue_data = NULL;
1704 free_nfs_cb_data(data);
1705 return;
1706 }
1707 nfsdirent->inode = entry->fileid;
1708 nfsdirent->next = nfsdir->entries;
1709 nfsdir->entries = nfsdirent;
1710
1711 cookie = entry->cookie;
1712 entry = entry->nextentry;
1713 }
1714
1715 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
1716 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIRPLUS3res_u.resok.cookieverf, 8192, data) != 0) {
1717 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
1718 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1719 nfs_free_nfsdir(nfsdir);
1720 data->continue_data = NULL;
1721 free_nfs_cb_data(data);
1722 return;
1723 }
1724 return;
1725 }
1726
1727 /* steal the dirhandle */
1728 data->continue_data = NULL;
1729 nfsdir->current = nfsdir->entries;
1730
1731 data->cb(0, nfs, nfsdir, data->private_data);
1732 free_nfs_cb_data(data);
1733 }
1734
1735 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1736 {
1737 cookieverf3 cv;
1738
1739 bzero(cv, sizeof(cookieverf3));
1740 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
1741 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
1742 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1743 free_nfs_cb_data(data);
1744 return -1;
1745 }
1746 return 0;
1747 }
1748
1749 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1750 {
1751 struct nfsdir *nfsdir;
1752
1753 nfsdir = malloc(sizeof(struct nfsdir));
1754 if (nfsdir == NULL) {
1755 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
1756 return -1;
1757 }
1758 bzero(nfsdir, sizeof(struct nfsdir));
1759
1760 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
1761 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1762 return -1;
1763 }
1764
1765 return 0;
1766 }
1767
1768
1769 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1770 {
1771 struct nfsdirent *nfsdirent = nfsdir->current;
1772
1773 if (nfsdir->current != NULL) {
1774 nfsdir->current = nfsdir->current->next;
1775 }
1776 return nfsdirent;
1777 }
1778
1779
1780 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1781 {
1782 nfs_free_nfsdir(nfsdir);
1783 }
1784
1785
1786
1787
1788
1789
1790
1791 /*
1792 * Async lseek()
1793 */
1794 struct lseek_cb_data {
1795 struct nfs_context *nfs;
1796 struct nfsfh *nfsfh;
1797 off_t offset;
1798 nfs_cb cb;
1799 void *private_data;
1800 };
1801
1802 static void nfs_lseek_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1803 {
1804 GETATTR3res *res;
1805 struct lseek_cb_data *data = private_data;
1806 struct nfs_context *nfs = data->nfs;
1807
1808 if (status == RPC_STATUS_ERROR) {
1809 data->cb(-EFAULT, nfs, command_data, data->private_data);
1810 free(data);
1811 return;
1812 }
1813 if (status == RPC_STATUS_CANCEL) {
1814 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1815 free(data);
1816 return;
1817 }
1818
1819 res = command_data;
1820 if (res->status != NFS3_OK) {
1821 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1822 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1823 free(data);
1824 return;
1825 }
1826
1827 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
1828 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
1829 free(data);
1830 }
1831
1832 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, nfs_cb cb, void *private_data)
1833 {
1834 struct lseek_cb_data *data;
1835
1836 if (whence == SEEK_SET) {
1837 nfsfh->offset = offset;
1838 cb(0, nfs, &nfsfh->offset, private_data);
1839 return 0;
1840 }
1841 if (whence == SEEK_CUR) {
1842 nfsfh->offset += offset;
1843 cb(0, nfs, &nfsfh->offset, private_data);
1844 return 0;
1845 }
1846
1847 data = malloc(sizeof(struct lseek_cb_data));
1848 if (data == NULL) {
1849 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
1850 return -1;
1851 }
1852
1853 data->nfs = nfs;
1854 data->nfsfh = nfsfh;
1855 data->offset = offset;
1856 data->cb = cb;
1857 data->private_data = private_data;
1858
1859 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
1860 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
1861 free(data);
1862 return -1;
1863 }
1864 return 0;
1865 }
1866
1867
1868
1869
1870 /*
1871 * Async statvfs()
1872 */
1873 static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1874 {
1875 FSSTAT3res *res;
1876 struct nfs_cb_data *data = private_data;
1877 struct nfs_context *nfs = data->nfs;
1878 struct statvfs svfs;
1879
1880 if (status == RPC_STATUS_ERROR) {
1881 data->cb(-EFAULT, nfs, command_data, data->private_data);
1882 free_nfs_cb_data(data);
1883 return;
1884 }
1885 if (status == RPC_STATUS_CANCEL) {
1886 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1887 free_nfs_cb_data(data);
1888 return;
1889 }
1890
1891 res = command_data;
1892 if (res->status != NFS3_OK) {
1893 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));
1894 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1895 free_nfs_cb_data(data);
1896 return;
1897 }
1898
1899 svfs.f_bsize = 4096;
1900 svfs.f_frsize = 4096;
1901 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
1902 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
1903 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
1904 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
1905 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
1906 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
1907 svfs.f_fsid = 0;
1908 svfs.f_flag = 0;
1909 svfs.f_namemax = 256;
1910
1911 data->cb(0, nfs, &svfs, data->private_data);
1912 free_nfs_cb_data(data);
1913 }
1914
1915 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1916 {
1917 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
1918 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
1919 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1920 free_nfs_cb_data(data);
1921 return -1;
1922 }
1923 return 0;
1924 }
1925
1926 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1927 {
1928 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
1929 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1930 return -1;
1931 }
1932
1933 return 0;
1934 }
1935
1936
1937
1938
1939 /*
1940 * Async readlink()
1941 */
1942 static void nfs_readlink_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1943 {
1944 READLINK3res *res;
1945 struct nfs_cb_data *data = private_data;
1946 struct nfs_context *nfs = data->nfs;
1947
1948 if (status == RPC_STATUS_ERROR) {
1949 data->cb(-EFAULT, nfs, command_data, data->private_data);
1950 free_nfs_cb_data(data);
1951 return;
1952 }
1953 if (status == RPC_STATUS_CANCEL) {
1954 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1955 free_nfs_cb_data(data);
1956 return;
1957 }
1958
1959 res = command_data;
1960 if (res->status != NFS3_OK) {
1961 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));
1962 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1963 free_nfs_cb_data(data);
1964 return;
1965 }
1966
1967
1968 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
1969 free_nfs_cb_data(data);
1970 }
1971
1972 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1973 {
1974 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &data->fh, data) != 0) {
1975 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
1976 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1977 free_nfs_cb_data(data);
1978 return -1;
1979 }
1980 return 0;
1981 }
1982
1983 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1984 {
1985 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
1986 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1987 return -1;
1988 }
1989
1990 return 0;
1991 }
1992
1993
1994
1995
1996 /*
1997 * Async chmod()
1998 */
1999 static void nfs_chmod_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2000 {
2001 struct nfs_cb_data *data = private_data;
2002 struct nfs_context *nfs = data->nfs;
2003 SETATTR3res *res;
2004
2005 if (status == RPC_STATUS_ERROR) {
2006 data->cb(-EFAULT, nfs, command_data, data->private_data);
2007 free_nfs_cb_data(data);
2008 return;
2009 }
2010 if (status == RPC_STATUS_CANCEL) {
2011 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2012 free_nfs_cb_data(data);
2013 return;
2014 }
2015
2016 res = command_data;
2017 if (res->status != NFS3_OK) {
2018 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2019 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2020 free_nfs_cb_data(data);
2021 return;
2022 }
2023
2024 data->cb(0, nfs, NULL, data->private_data);
2025 free_nfs_cb_data(data);
2026 }
2027
2028 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2029 {
2030 SETATTR3args args;
2031
2032 bzero(&args, sizeof(SETATTR3args));
2033 args.object.data.data_len = data->fh.data.data_len;
2034 args.object.data.data_val = data->fh.data.data_val;
2035 args.new_attributes.mode.set_it = 1;
2036 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2037
2038 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2039 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2040 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2041 free_nfs_cb_data(data);
2042 return -1;
2043 }
2044 return 0;
2045 }
2046
2047
2048 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2049 {
2050 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
2051 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2052 return -1;
2053 }
2054
2055 return 0;
2056 }
2057
2058 /*
2059 * Async fchmod()
2060 */
2061 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2062 {
2063 struct nfs_cb_data *data;
2064
2065 data = malloc(sizeof(struct nfs_cb_data));
2066 if (data == NULL) {
2067 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
2068 return -1;
2069 }
2070 bzero(data, sizeof(struct nfs_cb_data));
2071 data->nfs = nfs;
2072 data->cb = cb;
2073 data->private_data = private_data;
2074 data->continue_int = mode;
2075 data->fh.data.data_len = nfsfh->fh.data.data_len;
2076 data->fh.data.data_val = malloc(data->fh.data.data_len);
2077 if (data->fh.data.data_val == NULL) {
2078 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2079 free_nfs_cb_data(data);
2080 return -1;
2081 }
2082 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2083
2084 if (nfs_chmod_continue_internal(nfs, data) != 0) {
2085 free_nfs_cb_data(data);
2086 return -1;
2087 }
2088
2089 return 0;
2090 }
2091
2092
2093
2094 /*
2095 * Async chown()
2096 */
2097 static void nfs_chown_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2098 {
2099 struct nfs_cb_data *data = private_data;
2100 struct nfs_context *nfs = data->nfs;
2101 SETATTR3res *res;
2102
2103 if (status == RPC_STATUS_ERROR) {
2104 data->cb(-EFAULT, nfs, command_data, data->private_data);
2105 free_nfs_cb_data(data);
2106 return;
2107 }
2108 if (status == RPC_STATUS_CANCEL) {
2109 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2110 free_nfs_cb_data(data);
2111 return;
2112 }
2113
2114 res = command_data;
2115 if (res->status != NFS3_OK) {
2116 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2117 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2118 free_nfs_cb_data(data);
2119 return;
2120 }
2121
2122 data->cb(0, nfs, NULL, data->private_data);
2123 free_nfs_cb_data(data);
2124 }
2125
2126 struct nfs_chown_data {
2127 uid_t uid;
2128 gid_t gid;
2129 };
2130
2131 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2132 {
2133 SETATTR3args args;
2134 struct nfs_chown_data *chown_data = data->continue_data;
2135
2136 bzero(&args, sizeof(SETATTR3args));
2137 args.object.data.data_len = data->fh.data.data_len;
2138 args.object.data.data_val = data->fh.data.data_val;
2139 if (chown_data->uid != (uid_t)-1) {
2140 args.new_attributes.uid.set_it = 1;
2141 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2142 }
2143 if (chown_data->gid != (gid_t)-1) {
2144 args.new_attributes.gid.set_it = 1;
2145 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2146 }
2147
2148 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2149 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2150 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2151 free_nfs_cb_data(data);
2152 return -1;
2153 }
2154 return 0;
2155 }
2156
2157
2158 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
2159 {
2160 struct nfs_chown_data *chown_data;
2161
2162 chown_data = malloc(sizeof(struct nfs_chown_data));
2163 if (chown_data == NULL) {
2164 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2165 return -1;
2166 }
2167
2168 chown_data->uid = uid;
2169 chown_data->gid = gid;
2170
2171 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
2172 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2173 return -1;
2174 }
2175
2176 return 0;
2177 }
2178
2179
2180 /*
2181 * Async fchown()
2182 */
2183 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
2184 {
2185 struct nfs_cb_data *data;
2186 struct nfs_chown_data *chown_data;
2187
2188 chown_data = malloc(sizeof(struct nfs_chown_data));
2189 if (chown_data == NULL) {
2190 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2191 return -1;
2192 }
2193
2194 chown_data->uid = uid;
2195 chown_data->gid = gid;
2196
2197
2198 data = malloc(sizeof(struct nfs_cb_data));
2199 if (data == NULL) {
2200 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
2201 return -1;
2202 }
2203 bzero(data, sizeof(struct nfs_cb_data));
2204 data->nfs = nfs;
2205 data->cb = cb;
2206 data->private_data = private_data;
2207 data->continue_data = chown_data;
2208 data->fh.data.data_len = nfsfh->fh.data.data_len;
2209 data->fh.data.data_val = malloc(data->fh.data.data_len);
2210 if (data->fh.data.data_val == NULL) {
2211 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2212 free_nfs_cb_data(data);
2213 return -1;
2214 }
2215 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2216
2217
2218 if (nfs_chown_continue_internal(nfs, data) != 0) {
2219 free_nfs_cb_data(data);
2220 return -1;
2221 }
2222
2223 return 0;
2224 }
2225
2226
2227
2228
2229
2230 /*
2231 * Async utimes()
2232 */
2233 static void nfs_utimes_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2234 {
2235 struct nfs_cb_data *data = private_data;
2236 struct nfs_context *nfs = data->nfs;
2237 SETATTR3res *res;
2238
2239 if (status == RPC_STATUS_ERROR) {
2240 data->cb(-EFAULT, nfs, command_data, data->private_data);
2241 free_nfs_cb_data(data);
2242 return;
2243 }
2244 if (status == RPC_STATUS_CANCEL) {
2245 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2246 free_nfs_cb_data(data);
2247 return;
2248 }
2249
2250 res = command_data;
2251 if (res->status != NFS3_OK) {
2252 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2253 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2254 free_nfs_cb_data(data);
2255 return;
2256 }
2257
2258 data->cb(0, nfs, NULL, data->private_data);
2259 free_nfs_cb_data(data);
2260 }
2261
2262 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2263 {
2264 SETATTR3args args;
2265 struct timeval *utimes_data = data->continue_data;
2266
2267 bzero(&args, sizeof(SETATTR3args));
2268 args.object.data.data_len = data->fh.data.data_len;
2269 args.object.data.data_val = data->fh.data.data_val;
2270 if (utimes_data != NULL) {
2271 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
2272 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
2273 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
2274 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
2275 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
2276 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
2277 } else {
2278 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
2279 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
2280 }
2281
2282 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
2283 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2284 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2285 free_nfs_cb_data(data);
2286 return -1;
2287 }
2288 return 0;
2289 }
2290
2291
2292 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
2293 {
2294 struct timeval *new_times = NULL;
2295
2296 if (times != NULL) {
2297 new_times = malloc(sizeof(struct timeval)*2);
2298 if (new_times == NULL) {
2299 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2300 return -1;
2301 }
2302
2303 memcpy(new_times, times, sizeof(struct timeval)*2);
2304 }
2305
2306 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2307 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2308 return -1;
2309 }
2310
2311 return 0;
2312 }
2313
2314 /*
2315 * Async utime()
2316 */
2317 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
2318 {
2319 struct timeval *new_times = NULL;
2320
2321 if (times != NULL) {
2322 new_times = malloc(sizeof(struct timeval)*2);
2323 if (new_times == NULL) {
2324 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2325 return -1;
2326 }
2327
2328 new_times[0].tv_sec = times->actime;
2329 new_times[0].tv_usec = 0;
2330 new_times[1].tv_sec = times->modtime;
2331 new_times[1].tv_usec = 0;
2332 }
2333
2334 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2335 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2336 return -1;
2337 }
2338
2339 return 0;
2340 }
2341
2342
2343
2344
2345
2346 /*
2347 * Async access()
2348 */
2349 static void nfs_access_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2350 {
2351 ACCESS3res *res;
2352 struct nfs_cb_data *data = private_data;
2353 struct nfs_context *nfs = data->nfs;
2354 unsigned int nfsmode = 0;
2355
2356 if (status == RPC_STATUS_ERROR) {
2357 data->cb(-EFAULT, nfs, command_data, data->private_data);
2358 free_nfs_cb_data(data);
2359 return;
2360 }
2361 if (status == RPC_STATUS_CANCEL) {
2362 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2363 free_nfs_cb_data(data);
2364 return;
2365 }
2366
2367 res = command_data;
2368 if (res->status != NFS3_OK) {
2369 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));
2370 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2371 free_nfs_cb_data(data);
2372 return;
2373 }
2374
2375 if (data->continue_int & R_OK) {
2376 nfsmode |= ACCESS3_READ;
2377 }
2378 if (data->continue_int & W_OK) {
2379 nfsmode |= ACCESS3_MODIFY;
2380 }
2381 if (data->continue_int & X_OK) {
2382 nfsmode |= ACCESS3_EXECUTE;
2383 }
2384
2385 if (res->ACCESS3res_u.resok.access != nfsmode) {
2386 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
2387 nfsmode&ACCESS3_READ?'r':'-',
2388 nfsmode&ACCESS3_MODIFY?'w':'-',
2389 nfsmode&ACCESS3_EXECUTE?'x':'-',
2390 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
2391 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
2392 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
2393 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
2394 free_nfs_cb_data(data);
2395 return;
2396 }
2397
2398 data->cb(0, nfs, NULL, data->private_data);
2399 free_nfs_cb_data(data);
2400 }
2401
2402 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2403 {
2404 int nfsmode = 0;
2405
2406 if (data->continue_int & R_OK) {
2407 nfsmode |= ACCESS3_READ;
2408 }
2409 if (data->continue_int & W_OK) {
2410 nfsmode |= ACCESS3_MODIFY;
2411 }
2412 if (data->continue_int & X_OK) {
2413 nfsmode |= ACCESS3_EXECUTE;
2414 }
2415
2416 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
2417 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
2418 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2419 free_nfs_cb_data(data);
2420 return -1;
2421 }
2422 return 0;
2423 }
2424
2425 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2426 {
2427 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
2428 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2429 return -1;
2430 }
2431
2432 return 0;
2433 }
2434
2435
2436
2437 /*
2438 * Async symlink()
2439 */
2440 struct nfs_symlink_data {
2441 char *oldpath;
2442 char *newpathparent;
2443 char *newpathobject;
2444 };
2445
2446 static void free_nfs_symlink_data(void *mem)
2447 {
2448 struct nfs_symlink_data *data = mem;
2449
2450 if (data->oldpath != NULL) {
2451 free(data->oldpath);
2452 }
2453 if (data->newpathparent != NULL) {
2454 free(data->newpathparent);
2455 }
2456 if (data->newpathobject != NULL) {
2457 free(data->newpathobject);
2458 }
2459 free(data);
2460 }
2461
2462 static void nfs_symlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2463 {
2464 SYMLINK3res *res;
2465 struct nfs_cb_data *data = private_data;
2466 struct nfs_context *nfs = data->nfs;
2467 struct nfs_symlink_data *symlink_data = data->continue_data;
2468
2469 if (status == RPC_STATUS_ERROR) {
2470 data->cb(-EFAULT, nfs, command_data, data->private_data);
2471 free_nfs_cb_data(data);
2472 return;
2473 }
2474 if (status == RPC_STATUS_CANCEL) {
2475 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2476 free_nfs_cb_data(data);
2477 return;
2478 }
2479
2480 res = command_data;
2481 if (res->status != NFS3_OK) {
2482 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));
2483 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2484 free_nfs_cb_data(data);
2485 return;
2486 }
2487
2488 data->cb(0, nfs, NULL, data->private_data);
2489 free_nfs_cb_data(data);
2490 }
2491
2492 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2493 {
2494 struct nfs_symlink_data *symlink_data = data->continue_data;
2495
2496 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &data->fh, symlink_data->newpathobject, symlink_data->oldpath, data) != 0) {
2497 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
2498 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2499 free_nfs_cb_data(data);
2500 return -1;
2501 }
2502 return 0;
2503 }
2504
2505 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2506 {
2507 char *ptr;
2508 struct nfs_symlink_data *symlink_data;
2509
2510 symlink_data = malloc(sizeof(struct nfs_symlink_data));
2511 if (symlink_data == NULL) {
2512 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
2513 return -1;
2514 }
2515 bzero(symlink_data, sizeof(struct nfs_symlink_data));
2516
2517 symlink_data->oldpath = strdup(oldpath);
2518 if (symlink_data->oldpath == NULL) {
2519 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
2520 free_nfs_symlink_data(symlink_data);
2521 return -1;
2522 }
2523
2524 symlink_data->newpathparent = strdup(newpath);
2525 if (symlink_data->newpathparent == NULL) {
2526 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
2527 free_nfs_symlink_data(symlink_data);
2528 return -1;
2529 }
2530
2531 ptr = strrchr(symlink_data->newpathparent, '/');
2532 if (ptr == NULL) {
2533 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
2534 free_nfs_symlink_data(symlink_data);
2535 return -1;
2536 }
2537 *ptr = 0;
2538 ptr++;
2539
2540 symlink_data->newpathobject = strdup(ptr);
2541 if (symlink_data->newpathobject == NULL) {
2542 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
2543 free_nfs_symlink_data(symlink_data);
2544 return -1;
2545 }
2546
2547 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
2548 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2549 return -1;
2550 }
2551
2552 return 0;
2553 }
2554
2555
2556
2557 /*
2558 * Async rename()
2559 */
2560 struct nfs_rename_data {
2561 char *oldpath;
2562 char *oldobject;
2563 struct nfs_fh3 olddir;
2564 char *newpath;
2565 char *newobject;
2566 struct nfs_fh3 newdir;
2567 };
2568
2569 static void free_nfs_rename_data(void *mem)
2570 {
2571 struct nfs_rename_data *data = mem;
2572
2573 if (data->oldpath != NULL) {
2574 free(data->oldpath);
2575 }
2576 if (data->olddir.data.data_val != NULL) {
2577 free(data->olddir.data.data_val);
2578 }
2579 if (data->newpath != NULL) {
2580 free(data->newpath);
2581 }
2582 if (data->newdir.data.data_val != NULL) {
2583 free(data->newdir.data.data_val);
2584 }
2585 free(data);
2586 }
2587
2588 static void nfs_rename_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2589 {
2590 RENAME3res *res;
2591 struct nfs_cb_data *data = private_data;
2592 struct nfs_context *nfs = data->nfs;
2593 struct nfs_rename_data *rename_data = data->continue_data;
2594
2595 if (status == RPC_STATUS_ERROR) {
2596 data->cb(-EFAULT, nfs, command_data, data->private_data);
2597 free_nfs_cb_data(data);
2598 return;
2599 }
2600 if (status == RPC_STATUS_CANCEL) {
2601 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2602 free_nfs_cb_data(data);
2603 return;
2604 }
2605
2606 res = command_data;
2607 if (res->status != NFS3_OK) {
2608 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));
2609 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2610 free_nfs_cb_data(data);
2611 return;
2612 }
2613
2614 data->cb(0, nfs, NULL, data->private_data);
2615 free_nfs_cb_data(data);
2616 }
2617
2618 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2619 {
2620 struct nfs_rename_data *rename_data = data->continue_data;
2621
2622 /* steal the filehandle */
2623 rename_data->newdir.data.data_len = data->fh.data.data_len;
2624 rename_data->newdir.data.data_val = data->fh.data.data_val;
2625 data->fh.data.data_val = NULL;
2626
2627 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
2628 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
2629 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2630 free_nfs_cb_data(data);
2631 return -1;
2632 }
2633 return 0;
2634 }
2635
2636
2637 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2638 {
2639 struct nfs_rename_data *rename_data = data->continue_data;
2640
2641 /* steal the filehandle */
2642 rename_data->olddir.data.data_len = data->fh.data.data_len;
2643 rename_data->olddir.data.data_val = data->fh.data.data_val;
2644 data->fh.data.data_val = NULL;
2645
2646 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) {
2647 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
2648 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2649 free_nfs_cb_data(data);
2650 return -1;
2651 }
2652 data->continue_data = NULL;
2653 free_nfs_cb_data(data);
2654
2655 return 0;
2656 }
2657
2658
2659 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2660 {
2661 char *ptr;
2662 struct nfs_rename_data *rename_data;
2663
2664 rename_data = malloc(sizeof(struct nfs_rename_data));
2665 if (rename_data == NULL) {
2666 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
2667 return -1;
2668 }
2669 bzero(rename_data, sizeof(struct nfs_rename_data));
2670
2671 rename_data->oldpath = strdup(oldpath);
2672 if (rename_data->oldpath == NULL) {
2673 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
2674 free_nfs_rename_data(rename_data);
2675 return -1;
2676 }
2677 ptr = strrchr(rename_data->oldpath, '/');
2678 if (ptr == NULL) {
2679 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
2680 free_nfs_rename_data(rename_data);
2681 return -1;
2682 }
2683 *ptr = 0;
2684 ptr++;
2685 rename_data->oldobject = ptr;
2686
2687
2688 rename_data->newpath = strdup(newpath);
2689 if (rename_data->newpath == NULL) {
2690 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
2691 free_nfs_rename_data(rename_data);
2692 return -1;
2693 }
2694 ptr = strrchr(rename_data->newpath, '/');
2695 if (ptr == NULL) {
2696 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
2697 free_nfs_rename_data(rename_data);
2698 return -1;
2699 }
2700 *ptr = 0;
2701 ptr++;
2702 rename_data->newobject = ptr;
2703
2704
2705 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
2706 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2707 return -1;
2708 }
2709
2710 return 0;
2711 }
2712
2713
2714 /*
2715 * Async link()
2716 */
2717 struct nfs_link_data {
2718 char *oldpath;
2719 struct nfs_fh3 oldfh;
2720 char *newpath;
2721 char *newobject;
2722 struct nfs_fh3 newdir;
2723 };
2724
2725 static void free_nfs_link_data(void *mem)
2726 {
2727 struct nfs_link_data *data = mem;
2728
2729 if (data->oldpath != NULL) {
2730 free(data->oldpath);
2731 }
2732 if (data->oldfh.data.data_val != NULL) {
2733 free(data->oldfh.data.data_val);
2734 }
2735 if (data->newpath != NULL) {
2736 free(data->newpath);
2737 }
2738 if (data->newdir.data.data_val != NULL) {
2739 free(data->newdir.data.data_val);
2740 }
2741 free(data);
2742 }
2743
2744 static void nfs_link_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2745 {
2746 LINK3res *res;
2747 struct nfs_cb_data *data = private_data;
2748 struct nfs_context *nfs = data->nfs;
2749 struct nfs_link_data *link_data = data->continue_data;
2750
2751 if (status == RPC_STATUS_ERROR) {
2752 data->cb(-EFAULT, nfs, command_data, data->private_data);
2753 free_nfs_cb_data(data);
2754 return;
2755 }
2756 if (status == RPC_STATUS_CANCEL) {
2757 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2758 free_nfs_cb_data(data);
2759 return;
2760 }
2761
2762 res = command_data;
2763 if (res->status != NFS3_OK) {
2764 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));
2765 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2766 free_nfs_cb_data(data);
2767 return;
2768 }
2769
2770 data->cb(0, nfs, NULL, data->private_data);
2771 free_nfs_cb_data(data);
2772 }
2773
2774 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2775 {
2776 struct nfs_link_data *link_data = data->continue_data;
2777
2778 /* steal the filehandle */
2779 link_data->newdir.data.data_len = data->fh.data.data_len;
2780 link_data->newdir.data.data_val = data->fh.data.data_val;
2781 data->fh.data.data_val = NULL;
2782
2783 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
2784 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
2785 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2786 free_nfs_cb_data(data);
2787 return -1;
2788 }
2789 return 0;
2790 }
2791
2792
2793 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2794 {
2795 struct nfs_link_data *link_data = data->continue_data;
2796
2797 /* steal the filehandle */
2798 link_data->oldfh.data.data_len = data->fh.data.data_len;
2799 link_data->oldfh.data.data_val = data->fh.data.data_val;
2800 data->fh.data.data_val = NULL;
2801
2802 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) {
2803 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
2804 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2805 free_nfs_cb_data(data);
2806 return -1;
2807 }
2808 data->continue_data = NULL;
2809 free_nfs_cb_data(data);
2810
2811 return 0;
2812 }
2813
2814
2815 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2816 {
2817 char *ptr;
2818 struct nfs_link_data *link_data;
2819
2820 link_data = malloc(sizeof(struct nfs_link_data));
2821 if (link_data == NULL) {
2822 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
2823 return -1;
2824 }
2825 bzero(link_data, sizeof(struct nfs_link_data));
2826
2827 link_data->oldpath = strdup(oldpath);
2828 if (link_data->oldpath == NULL) {
2829 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
2830 free_nfs_link_data(link_data);
2831 return -1;
2832 }
2833
2834 link_data->newpath = strdup(newpath);
2835 if (link_data->newpath == NULL) {
2836 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
2837 free_nfs_link_data(link_data);
2838 return -1;
2839 }
2840 ptr = strrchr(link_data->newpath, '/');
2841 if (ptr == NULL) {
2842 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
2843 free_nfs_link_data(link_data);
2844 return -1;
2845 }
2846 *ptr = 0;
2847 ptr++;
2848 link_data->newobject = ptr;
2849
2850
2851 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
2852 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2853 return -1;
2854 }
2855
2856 return 0;
2857 }
2858
2859
2860 //qqq replace later with lseek()
2861 off_t nfs_get_current_offset(struct nfsfh *nfsfh)
2862 {
2863 return nfsfh->offset;
2864 }
2865
2866
2867
2868 /*
2869 * Get the maximum supported READ3 size by the server
2870 */
2871 size_t nfs_get_readmax(struct nfs_context *nfs)
2872 {
2873 return nfs->readmax;
2874 }
2875
2876 /*
2877 * Get the maximum supported WRITE3 size by the server
2878 */
2879 size_t nfs_get_writemax(struct nfs_context *nfs)
2880 {
2881 return nfs->writemax;
2882 }
2883
2884 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
2885 {
2886 va_list ap;
2887 char *str = NULL;
2888
2889 va_start(ap, error_string);
2890 vasprintf(&str, error_string, ap);
2891 if (nfs->rpc->error_string != NULL) {
2892 free(nfs->rpc->error_string);
2893 }
2894 nfs->rpc->error_string = str;
2895 va_end(ap);
2896 }
2897
2898
2899
2900 struct mount_cb_data {
2901 rpc_cb cb;
2902 void *private_data;
2903 char *server;
2904 };
2905
2906 static void free_mount_cb_data(struct mount_cb_data *data)
2907 {
2908 if (data->server != NULL) {
2909 free(data->server);
2910 data->server = NULL;
2911 }
2912
2913 free(data);
2914 }
2915
2916 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2917 {
2918 struct mount_cb_data *data = private_data;
2919
2920 if (status == RPC_STATUS_ERROR) {
2921 data->cb(rpc, -EFAULT, command_data, data->private_data);
2922 free_mount_cb_data(data);
2923 return;
2924 }
2925 if (status == RPC_STATUS_CANCEL) {
2926 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2927 free_mount_cb_data(data);
2928 return;
2929 }
2930
2931 data->cb(rpc, 0, command_data, data->private_data);
2932 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
2933 rpc_set_error(rpc, "Failed to disconnect\n");
2934 }
2935 free_mount_cb_data(data);
2936 }
2937
2938 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2939 {
2940 struct mount_cb_data *data = private_data;
2941
2942 if (status == RPC_STATUS_ERROR) {
2943 data->cb(rpc, -EFAULT, command_data, data->private_data);
2944 free_mount_cb_data(data);
2945 return;
2946 }
2947 if (status == RPC_STATUS_CANCEL) {
2948 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2949 free_mount_cb_data(data);
2950 return;
2951 }
2952
2953 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
2954 data->cb(rpc, -ENOMEM, command_data, data->private_data);
2955 free_mount_cb_data(data);
2956 return;
2957 }
2958 }
2959
2960 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2961 {
2962 struct mount_cb_data *data = private_data;
2963 uint32_t mount_port;
2964
2965 if (status == RPC_STATUS_ERROR) {
2966 data->cb(rpc, -EFAULT, command_data, data->private_data);
2967 free_mount_cb_data(data);
2968 return;
2969 }
2970 if (status == RPC_STATUS_CANCEL) {
2971 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2972 free_mount_cb_data(data);
2973 return;
2974 }
2975
2976 mount_port = *(uint32_t *)command_data;
2977 if (mount_port == 0) {
2978 rpc_set_error(rpc, "RPC error. Mount program is not available");
2979 data->cb(rpc, -ENOENT, command_data, data->private_data);
2980 free_mount_cb_data(data);
2981 return;
2982 }
2983
2984 rpc_disconnect(rpc, "normal disconnect");
2985 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
2986 data->cb(rpc, -ENOMEM, command_data, data->private_data);
2987 free_mount_cb_data(data);
2988 return;
2989 }
2990 }
2991
2992 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2993 {
2994 struct mount_cb_data *data = private_data;
2995
2996 if (status == RPC_STATUS_ERROR) {
2997 data->cb(rpc, -EFAULT, command_data, data->private_data);
2998 free_mount_cb_data(data);
2999 return;
3000 }
3001 if (status == RPC_STATUS_CANCEL) {
3002 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3003 free_mount_cb_data(data);
3004 return;
3005 }
3006
3007 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, mount_export_3_cb, private_data) != 0) {
3008 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3009 free_mount_cb_data(data);
3010 return;
3011 }
3012 }
3013
3014 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3015 {
3016 struct mount_cb_data *data = private_data;
3017
3018 if (status == RPC_STATUS_ERROR) {
3019 data->cb(rpc, -EFAULT, command_data, data->private_data);
3020 free_mount_cb_data(data);
3021 return;
3022 }
3023 if (status == RPC_STATUS_CANCEL) {
3024 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3025 free_mount_cb_data(data);
3026 return;
3027 }
3028
3029 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
3030 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3031 free_mount_cb_data(data);
3032 return;
3033 }
3034 }
3035
3036 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
3037 {
3038 struct mount_cb_data *data;
3039
3040 data = malloc(sizeof(struct mount_cb_data));
3041 if (data == NULL) {
3042 return -1;
3043 }
3044 bzero(data, sizeof(struct mount_cb_data));
3045 data->cb = cb;
3046 data->private_data = private_data;
3047 data->server = strdup(server);
3048 if (data->server == NULL) {
3049 free_mount_cb_data(data);
3050 return -1;
3051 }
3052 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
3053 free_mount_cb_data(data);
3054 return -1;
3055 }
3056
3057 return 0;
3058 }
3059
3060 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
3061 {
3062 return nfs->rpc;
3063 }
3064
3065 const char *nfs_get_server(struct nfs_context *nfs) {
3066 return nfs->server;
3067 }
3068
3069 const char *nfs_get_export(struct nfs_context *nfs) {
3070 return nfs->export;
3071 }
libnfs Piment Noir Debian package repository