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[win32] - fixed bad number casting when using libnfs on 64bit win8 systems - force...
[deb_libnfs.git] / lib / libnfs.c
1 /*
2 Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17 /*
18 * High level api to nfs filesystems
19 */
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #ifdef AROS
25 #include "aros_compat.h"
26 #endif
27
28 #ifdef WIN32
29 #include "win32_compat.h"
30 #endif
31
32 #ifdef HAVE_UTIME_H
33 #include <utime.h>
34 #endif
35
36 #ifdef ANDROID
37 #define statvfs statfs
38 #endif
39
40 #define _GNU_SOURCE
41
42 #ifdef HAVE_UNISTD_H
43 #include <unistd.h>
44 #endif
45
46 #ifdef HAVE_SYS_VFS_H
47 #include <sys/vfs.h>
48 #endif
49
50 #ifdef HAVE_SYS_STATVFS_H
51 #include <sys/statvfs.h>
52 #endif
53
54 #ifdef HAVE_NETINET_IN_H
55 #include <netinet/in.h>
56 #endif
57
58 #ifdef HAVE_STRINGS_H
59 #include <strings.h>
60 #endif
61
62 #include <stdio.h>
63 #include <stdarg.h>
64 #include <stdlib.h>
65 #include <string.h>
66 #include <assert.h>
67 #include <errno.h>
68 #include <sys/types.h>
69 #include <sys/stat.h>
70 #include <fcntl.h>
71 #include "libnfs-zdr.h"
72 #include "libnfs.h"
73 #include "libnfs-raw.h"
74 #include "libnfs-raw-mount.h"
75 #include "libnfs-raw-nfs.h"
76 #include "libnfs-private.h"
77
78 struct nfsdir {
79 struct nfsdirent *entries;
80 struct nfsdirent *current;
81 };
82
83 struct nfsfh {
84 struct nfs_fh3 fh;
85 int is_sync;
86 uint64_t offset;
87 };
88
89 struct nfs_context {
90 struct rpc_context *rpc;
91 char *server;
92 char *export;
93 struct nfs_fh3 rootfh;
94 uint64_t readmax;
95 uint64_t writemax;
96 };
97
98 void nfs_free_nfsdir(struct nfsdir *nfsdir)
99 {
100 while (nfsdir->entries) {
101 struct nfsdirent *dirent = nfsdir->entries->next;
102 if (nfsdir->entries->name != NULL) {
103 free(nfsdir->entries->name);
104 }
105 free(nfsdir->entries);
106 nfsdir->entries = dirent;
107 }
108 free(nfsdir);
109 }
110
111 struct nfs_cb_data;
112 typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
113
114 struct nfs_cb_data {
115 struct nfs_context *nfs;
116 struct nfsfh *nfsfh;
117 char *saved_path, *path;
118
119 nfs_cb cb;
120 void *private_data;
121
122 continue_func continue_cb;
123 void *continue_data;
124 void (*free_continue_data)(void *);
125 int continue_int;
126
127 struct nfs_fh3 fh;
128
129 /* for multi-read/write calls. */
130 int error;
131 int cancel;
132 int num_calls;
133 uint64_t start_offset, max_offset;
134 char *buffer;
135 };
136
137 struct nfs_mcb_data {
138 struct nfs_cb_data *data;
139 uint64_t offset;
140 uint64_t count;
141 };
142
143 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
144
145
146 void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
147 {
148 rpc_set_auth(nfs->rpc, auth);
149 }
150
151 int nfs_get_fd(struct nfs_context *nfs)
152 {
153 return rpc_get_fd(nfs->rpc);
154 }
155
156 int nfs_queue_length(struct nfs_context *nfs)
157 {
158 return rpc_queue_length(nfs->rpc);
159 }
160
161 int nfs_which_events(struct nfs_context *nfs)
162 {
163 return rpc_which_events(nfs->rpc);
164 }
165
166 int nfs_service(struct nfs_context *nfs, int revents)
167 {
168 return rpc_service(nfs->rpc, revents);
169 }
170
171 char *nfs_get_error(struct nfs_context *nfs)
172 {
173 return rpc_get_error(nfs->rpc);
174 };
175
176 struct nfs_context *nfs_init_context(void)
177 {
178 struct nfs_context *nfs;
179
180 nfs = malloc(sizeof(struct nfs_context));
181 if (nfs == NULL) {
182 return NULL;
183 }
184 nfs->rpc = rpc_init_context();
185 if (nfs->rpc == NULL) {
186 free(nfs);
187 return NULL;
188 }
189
190 nfs->server = NULL;
191 nfs->export = NULL;
192
193 nfs->rootfh.data.data_len = 0;
194 nfs->rootfh.data.data_val = NULL;
195
196 return nfs;
197 }
198
199 void nfs_destroy_context(struct nfs_context *nfs)
200 {
201 rpc_destroy_context(nfs->rpc);
202 nfs->rpc = NULL;
203
204 if (nfs->server) {
205 free(nfs->server);
206 nfs->server = NULL;
207 }
208
209 if (nfs->export) {
210 free(nfs->export);
211 nfs->export = NULL;
212 }
213
214 if (nfs->rootfh.data.data_val != NULL) {
215 free(nfs->rootfh.data.data_val);
216 nfs->rootfh.data.data_val = NULL;
217 }
218
219 free(nfs);
220 }
221
222 void free_nfs_cb_data(struct nfs_cb_data *data)
223 {
224 if (data->saved_path != NULL) {
225 free(data->saved_path);
226 data->saved_path = NULL;
227 }
228
229 if (data->continue_data != NULL) {
230 data->free_continue_data(data->continue_data);
231 data->continue_data = NULL;
232 }
233
234 if (data->fh.data.data_val != NULL) {
235 free(data->fh.data.data_val);
236 data->fh.data.data_val = NULL;
237 }
238
239 if (data->buffer != NULL) {
240 free(data->buffer);
241 data->buffer = NULL;
242 }
243
244 free(data);
245 }
246
247
248
249
250
251 static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
252 {
253 struct nfs_cb_data *data = private_data;
254 struct nfs_context *nfs = data->nfs;
255
256 assert(rpc->magic == RPC_CONTEXT_MAGIC);
257
258 if (status == RPC_STATUS_ERROR) {
259 data->cb(-EFAULT, nfs, command_data, data->private_data);
260 free_nfs_cb_data(data);
261 return;
262 }
263 if (status == RPC_STATUS_CANCEL) {
264 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
265 free_nfs_cb_data(data);
266 return;
267 }
268
269 data->cb(0, nfs, NULL, data->private_data);
270 free_nfs_cb_data(data);
271 }
272
273 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
274 {
275 struct nfs_cb_data *data = private_data;
276 struct nfs_context *nfs = data->nfs;
277 FSINFO3res *res = command_data;
278
279 assert(rpc->magic == RPC_CONTEXT_MAGIC);
280
281 if (status == RPC_STATUS_ERROR) {
282 data->cb(-EFAULT, nfs, command_data, data->private_data);
283 free_nfs_cb_data(data);
284 return;
285 }
286 if (status == RPC_STATUS_CANCEL) {
287 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
288 free_nfs_cb_data(data);
289 return;
290 }
291
292 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
293 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
294
295 if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
296 data->cb(-ENOMEM, nfs, command_data, data->private_data);
297 free_nfs_cb_data(data);
298 return;
299 }
300 }
301
302 static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
303 {
304 struct nfs_cb_data *data = private_data;
305 struct nfs_context *nfs = data->nfs;
306
307 assert(rpc->magic == RPC_CONTEXT_MAGIC);
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 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
321 data->cb(-ENOMEM, nfs, command_data, data->private_data);
322 free_nfs_cb_data(data);
323 return;
324 }
325 }
326
327
328 static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
329 {
330 struct nfs_cb_data *data = private_data;
331 struct nfs_context *nfs = data->nfs;
332
333 assert(rpc->magic == RPC_CONTEXT_MAGIC);
334
335 /* Dont want any more callbacks even if the socket is closed */
336 rpc->connect_cb = NULL;
337
338 if (status == RPC_STATUS_ERROR) {
339 data->cb(-EFAULT, nfs, command_data, data->private_data);
340 free_nfs_cb_data(data);
341 return;
342 }
343 if (status == RPC_STATUS_CANCEL) {
344 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
345 free_nfs_cb_data(data);
346 return;
347 }
348
349 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
350 data->cb(-ENOMEM, nfs, command_data, data->private_data);
351 free_nfs_cb_data(data);
352 return;
353 }
354 }
355
356
357 static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
358 {
359 struct nfs_cb_data *data = private_data;
360 struct nfs_context *nfs = data->nfs;
361 mountres3 *res;
362
363 assert(rpc->magic == RPC_CONTEXT_MAGIC);
364
365 if (status == RPC_STATUS_ERROR) {
366 data->cb(-EFAULT, nfs, command_data, data->private_data);
367 free_nfs_cb_data(data);
368 return;
369 }
370 if (status == RPC_STATUS_CANCEL) {
371 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
372 free_nfs_cb_data(data);
373 return;
374 }
375
376 res = command_data;
377 if (res->fhs_status != MNT3_OK) {
378 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));
379 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
380 free_nfs_cb_data(data);
381 return;
382 }
383
384 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
385 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
386 if (nfs->rootfh.data.data_val == NULL) {
387 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
388 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
389 free_nfs_cb_data(data);
390 return;
391 }
392 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
393
394 rpc_disconnect(rpc, "normal disconnect");
395 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
396 data->cb(-ENOMEM, nfs, command_data, data->private_data);
397 free_nfs_cb_data(data);
398 return;
399 }
400 /* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
401 rpc_set_autoreconnect(rpc);
402 }
403
404
405 static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
406 {
407 struct nfs_cb_data *data = private_data;
408 struct nfs_context *nfs = data->nfs;
409
410 assert(rpc->magic == RPC_CONTEXT_MAGIC);
411
412 if (status == RPC_STATUS_ERROR) {
413 data->cb(-EFAULT, nfs, command_data, data->private_data);
414 free_nfs_cb_data(data);
415 return;
416 }
417 if (status == RPC_STATUS_CANCEL) {
418 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
419 free_nfs_cb_data(data);
420 return;
421 }
422
423 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
424 data->cb(-ENOMEM, nfs, command_data, data->private_data);
425 free_nfs_cb_data(data);
426 return;
427 }
428 }
429
430 static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
431 {
432 struct nfs_cb_data *data = private_data;
433 struct nfs_context *nfs = data->nfs;
434
435 assert(rpc->magic == RPC_CONTEXT_MAGIC);
436
437 /* Dont want any more callbacks even if the socket is closed */
438 rpc->connect_cb = NULL;
439
440 if (status == RPC_STATUS_ERROR) {
441 data->cb(-EFAULT, nfs, command_data, data->private_data);
442 free_nfs_cb_data(data);
443 return;
444 }
445 if (status == RPC_STATUS_CANCEL) {
446 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
447 free_nfs_cb_data(data);
448 return;
449 }
450
451 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
452 data->cb(-ENOMEM, nfs, command_data, data->private_data);
453 free_nfs_cb_data(data);
454 return;
455 }
456 }
457
458 static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
459 {
460 struct nfs_cb_data *data = private_data;
461 struct nfs_context *nfs = data->nfs;
462 uint32_t mount_port;
463
464 assert(rpc->magic == RPC_CONTEXT_MAGIC);
465
466 if (status == RPC_STATUS_ERROR) {
467 data->cb(-EFAULT, nfs, command_data, data->private_data);
468 free_nfs_cb_data(data);
469 return;
470 }
471 if (status == RPC_STATUS_CANCEL) {
472 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
473 free_nfs_cb_data(data);
474 return;
475 }
476
477 mount_port = *(uint32_t *)command_data;
478 if (mount_port == 0) {
479 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
480 data->cb(-ENOENT, nfs, command_data, data->private_data);
481 free_nfs_cb_data(data);
482 return;
483 }
484
485 rpc_disconnect(rpc, "normal disconnect");
486 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
487 data->cb(-ENOMEM, nfs, command_data, data->private_data);
488 free_nfs_cb_data(data);
489 return;
490 }
491 }
492
493
494 static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
495 {
496 struct nfs_cb_data *data = private_data;
497 struct nfs_context *nfs = data->nfs;
498
499 assert(rpc->magic == RPC_CONTEXT_MAGIC);
500
501 if (status == RPC_STATUS_ERROR) {
502 data->cb(-EFAULT, nfs, command_data, data->private_data);
503 free_nfs_cb_data(data);
504 return;
505 }
506 if (status == RPC_STATUS_CANCEL) {
507 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
508 free_nfs_cb_data(data);
509 return;
510 }
511
512 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, nfs_mount_3_cb, private_data) != 0) {
513 data->cb(-ENOMEM, nfs, command_data, data->private_data);
514 free_nfs_cb_data(data);
515 return;
516 }
517 }
518
519 static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
520 {
521 struct nfs_cb_data *data = private_data;
522 struct nfs_context *nfs = data->nfs;
523
524 assert(rpc->magic == RPC_CONTEXT_MAGIC);
525
526 /* Dont want any more callbacks even if the socket is closed */
527 rpc->connect_cb = NULL;
528
529 if (status == RPC_STATUS_ERROR) {
530 data->cb(-EFAULT, nfs, command_data, data->private_data);
531 free_nfs_cb_data(data);
532 return;
533 }
534 if (status == RPC_STATUS_CANCEL) {
535 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
536 free_nfs_cb_data(data);
537 return;
538 }
539
540 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
541 data->cb(-ENOMEM, nfs, command_data, data->private_data);
542 free_nfs_cb_data(data);
543 return;
544 }
545 }
546
547 /*
548 * Async call for mounting an nfs share and geting the root filehandle
549 */
550 int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
551 {
552 struct nfs_cb_data *data;
553 char *new_server, *new_export;
554
555 data = malloc(sizeof(struct nfs_cb_data));
556 if (data == NULL) {
557 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
558 return -1;
559 }
560 memset(data, 0, sizeof(struct nfs_cb_data));
561 new_server = strdup(server);
562 new_export = strdup(export);
563 if (nfs->server != NULL) {
564 free(nfs->server);
565 }
566 nfs->server = new_server;
567 if (nfs->export != NULL) {
568 free(nfs->export);
569 }
570 nfs->export = new_export;
571 data->nfs = nfs;
572 data->cb = cb;
573 data->private_data = private_data;
574
575 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
576 rpc_set_error(nfs->rpc, "Failed to start connection");
577 free_nfs_cb_data(data);
578 return -1;
579 }
580
581 return 0;
582 }
583
584
585
586 /*
587 * Functions to first look up a path, component by component, and then finally call a specific function once
588 * the filehandle for the final component is found.
589 */
590 static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
591 {
592 struct nfs_cb_data *data = private_data;
593 struct nfs_context *nfs = data->nfs;
594 LOOKUP3res *res;
595
596 assert(rpc->magic == RPC_CONTEXT_MAGIC);
597
598 if (status == RPC_STATUS_ERROR) {
599 data->cb(-EFAULT, nfs, command_data, data->private_data);
600 free_nfs_cb_data(data);
601 return;
602 }
603 if (status == RPC_STATUS_CANCEL) {
604 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
605 free_nfs_cb_data(data);
606 return;
607 }
608
609 res = command_data;
610 if (res->status != NFS3_OK) {
611 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));
612 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
613 free_nfs_cb_data(data);
614 return;
615 }
616
617 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
618 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
619 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
620 free_nfs_cb_data(data);
621 return;
622 }
623 }
624
625 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
626 {
627 char *path, *str;
628
629 while (*data->path == '/') {
630 data->path++;
631 }
632
633 path = data->path;
634 str = strchr(path, '/');
635 if (str != NULL) {
636 *str = 0;
637 data->path = str+1;
638 } else {
639 while (*data->path != 0) {
640 data->path++;
641 }
642 }
643
644 if (*path == 0) {
645 data->fh.data.data_len = fh->data.data_len;
646 data->fh.data.data_val = malloc(data->fh.data.data_len);
647 if (data->fh.data.data_val == NULL) {
648 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
649 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
650 free_nfs_cb_data(data);
651 return -1;
652 }
653 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
654 data->continue_cb(nfs, data);
655 return 0;
656 }
657
658 if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
659 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
660 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
661 free_nfs_cb_data(data);
662 return -1;
663 }
664 return 0;
665 }
666
667 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)
668 {
669 struct nfs_cb_data *data;
670
671 if (path[0] != 0 && path[0] != '/') {
672 rpc_set_error(nfs->rpc, "Pathname is not absolute %s", path);
673 return -1;
674 }
675
676 data = malloc(sizeof(struct nfs_cb_data));
677 if (data == NULL) {
678 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
679 return -1;
680 }
681 memset(data, 0, sizeof(struct nfs_cb_data));
682 data->nfs = nfs;
683 data->cb = cb;
684 data->continue_cb = continue_cb;
685 data->continue_data = continue_data;
686 data->free_continue_data = free_continue_data;
687 data->continue_int = continue_int;
688 data->private_data = private_data;
689 data->saved_path = strdup(path);
690 if (data->saved_path == NULL) {
691 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
692 free_nfs_cb_data(data);
693 return -1;
694 }
695 data->path = data->saved_path;
696
697 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
698 /* return 0 here since the callback will be invoked if there is a failure */
699 return 0;
700 }
701 return 0;
702 }
703
704
705
706
707
708 /*
709 * Async stat()
710 */
711 static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
712 {
713 GETATTR3res *res;
714 struct nfs_cb_data *data = private_data;
715 struct nfs_context *nfs = data->nfs;
716 #ifdef WIN32
717 struct __stat64 st;
718 #else
719 struct stat st;
720 #endif
721
722 assert(rpc->magic == RPC_CONTEXT_MAGIC);
723
724 if (status == RPC_STATUS_ERROR) {
725 data->cb(-EFAULT, nfs, command_data, data->private_data);
726 free_nfs_cb_data(data);
727 return;
728 }
729 if (status == RPC_STATUS_CANCEL) {
730 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
731 free_nfs_cb_data(data);
732 return;
733 }
734
735 res = command_data;
736 if (res->status != NFS3_OK) {
737 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));
738 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
739 free_nfs_cb_data(data);
740 return;
741 }
742
743 st.st_dev = -1;
744 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
745 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
746 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
747 st.st_mode |= S_IFDIR ;
748 }
749 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
750 st.st_mode |= S_IFREG ;
751 }
752 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
753 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
754 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
755 st.st_rdev = 0;
756 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
757 #ifndef WIN32
758 st.st_blksize = 4096;
759 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
760 #endif//WIN32
761 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
762 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
763 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
764
765 data->cb(0, nfs, &st, data->private_data);
766 free_nfs_cb_data(data);
767 }
768
769 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
770 {
771 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
772 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
773 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
774 free_nfs_cb_data(data);
775 return -1;
776 }
777 return 0;
778 }
779
780 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
781 {
782 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
783 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
784 return -1;
785 }
786
787 return 0;
788 }
789
790
791
792
793
794 /*
795 * Async open()
796 */
797 static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
798 {
799 ACCESS3res *res;
800 struct nfs_cb_data *data = private_data;
801 struct nfs_context *nfs = data->nfs;
802 struct nfsfh *nfsfh;
803 unsigned int nfsmode = 0;
804
805 assert(rpc->magic == RPC_CONTEXT_MAGIC);
806
807 if (status == RPC_STATUS_ERROR) {
808 data->cb(-EFAULT, nfs, command_data, data->private_data);
809 free_nfs_cb_data(data);
810 return;
811 }
812 if (status == RPC_STATUS_CANCEL) {
813 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
814 free_nfs_cb_data(data);
815 return;
816 }
817
818 res = command_data;
819 if (res->status != NFS3_OK) {
820 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));
821 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
822 free_nfs_cb_data(data);
823 return;
824 }
825
826 if (data->continue_int & O_WRONLY) {
827 nfsmode |= ACCESS3_MODIFY;
828 }
829 if (data->continue_int & O_RDWR) {
830 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
831 }
832 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
833 nfsmode |= ACCESS3_READ;
834 }
835
836
837 if (res->ACCESS3res_u.resok.access != nfsmode) {
838 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
839 nfsmode&ACCESS3_READ?'r':'-',
840 nfsmode&ACCESS3_MODIFY?'w':'-',
841 nfsmode&ACCESS3_EXECUTE?'x':'-',
842 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
843 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
844 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
845 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
846 free_nfs_cb_data(data);
847 return;
848 }
849
850 nfsfh = malloc(sizeof(struct nfsfh));
851 if (nfsfh == NULL) {
852 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
853 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
854 free_nfs_cb_data(data);
855 return;
856 }
857 memset(nfsfh, 0, sizeof(struct nfsfh));
858
859 if (data->continue_int & O_SYNC) {
860 nfsfh->is_sync = 1;
861 }
862
863 /* steal the filehandle */
864 nfsfh->fh.data.data_len = data->fh.data.data_len;
865 nfsfh->fh.data.data_val = data->fh.data.data_val;
866 data->fh.data.data_val = NULL;
867
868 data->cb(0, nfs, nfsfh, data->private_data);
869 free_nfs_cb_data(data);
870 }
871
872 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
873 {
874 int nfsmode = 0;
875
876 if (data->continue_int & O_WRONLY) {
877 nfsmode |= ACCESS3_MODIFY;
878 }
879 if (data->continue_int & O_RDWR) {
880 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
881 }
882 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
883 nfsmode |= ACCESS3_READ;
884 }
885
886 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
887 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
888 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
889 free_nfs_cb_data(data);
890 return -1;
891 }
892 return 0;
893 }
894
895 int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
896 {
897 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
898 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
899 return -1;
900 }
901
902 return 0;
903 }
904
905
906
907
908
909 /*
910 * Async pread()
911 */
912 static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
913 {
914 struct nfs_cb_data *data = private_data;
915 struct nfs_context *nfs = data->nfs;
916 READ3res *res;
917
918 assert(rpc->magic == RPC_CONTEXT_MAGIC);
919
920 if (status == RPC_STATUS_ERROR) {
921 data->cb(-EFAULT, nfs, command_data, data->private_data);
922 free_nfs_cb_data(data);
923 return;
924 }
925 if (status == RPC_STATUS_CANCEL) {
926 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
927 free_nfs_cb_data(data);
928 return;
929 }
930
931 res = command_data;
932 if (res->status != NFS3_OK) {
933 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
934 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
935 free_nfs_cb_data(data);
936 return;
937 }
938
939 data->nfsfh->offset += res->READ3res_u.resok.count;
940 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
941 free_nfs_cb_data(data);
942 }
943
944 static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
945 {
946 struct nfs_mcb_data *mdata = private_data;
947 struct nfs_cb_data *data = mdata->data;
948 struct nfs_context *nfs = data->nfs;
949 READ3res *res;
950
951 assert(rpc->magic == RPC_CONTEXT_MAGIC);
952
953 data->num_calls--;
954
955 if (status == RPC_STATUS_ERROR) {
956 /* flag the failure but do not invoke callback until we have received all responses */
957 data->error = 1;
958 }
959 if (status == RPC_STATUS_CANCEL) {
960 /* flag the cancellation but do not invoke callback until we have received all responses */
961 data->cancel = 1;
962 }
963
964 /* reassemble the data into the buffer */
965 if (status == RPC_STATUS_SUCCESS) {
966 res = command_data;
967 if (res->status != NFS3_OK) {
968 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
969 data->error = 1;
970 } else {
971 if (res->READ3res_u.resok.count > 0) {
972 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
973 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
974 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
975 }
976 }
977 }
978 }
979
980 if (data->num_calls > 0) {
981 /* still waiting for more replies */
982 free(mdata);
983 return;
984 }
985
986 if (data->error != 0) {
987 data->cb(-EFAULT, nfs, command_data, data->private_data);
988 free_nfs_cb_data(data);
989 free(mdata);
990 return;
991 }
992 if (data->cancel != 0) {
993 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
994 free_nfs_cb_data(data);
995 free(mdata);
996 return;
997 }
998
999 data->nfsfh->offset = data->max_offset;
1000 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
1001
1002 free_nfs_cb_data(data);
1003 free(mdata);
1004 }
1005
1006 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
1007 {
1008 struct nfs_cb_data *data;
1009
1010 data = malloc(sizeof(struct nfs_cb_data));
1011 if (data == NULL) {
1012 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1013 return -1;
1014 }
1015 memset(data, 0, sizeof(struct nfs_cb_data));
1016 data->nfs = nfs;
1017 data->cb = cb;
1018 data->private_data = private_data;
1019 data->nfsfh = nfsfh;
1020
1021 nfsfh->offset = offset;
1022
1023 if (count <= nfs_get_readmax(nfs)) {
1024 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
1025 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1026 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1027 free_nfs_cb_data(data);
1028 return -1;
1029 }
1030 return 0;
1031 }
1032
1033 /* trying to read more than maximum server read size, we has to chop it up into smaller
1034 * reads and collect into a reassembly buffer.
1035 * we send all reads in parallell so that performance is still good.
1036 */
1037 data->max_offset = offset;
1038 data->start_offset = offset;
1039
1040 data->buffer = malloc(count);
1041 if (data->buffer == NULL) {
1042 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
1043 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1044 free_nfs_cb_data(data);
1045 return -1;
1046 }
1047
1048 while (count > 0) {
1049 uint64_t readcount = count;
1050 struct nfs_mcb_data *mdata;
1051
1052 if (readcount > nfs_get_readmax(nfs)) {
1053 readcount = nfs_get_readmax(nfs);
1054 }
1055
1056 mdata = malloc(sizeof(struct nfs_mcb_data));
1057 if (mdata == NULL) {
1058 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1059 return -1;
1060 }
1061 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1062 mdata->data = data;
1063 mdata->offset = offset;
1064 mdata->count = readcount;
1065 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
1066 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1067 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1068 free(mdata);
1069 return -1;
1070 }
1071
1072 count -= readcount;
1073 offset += readcount;
1074 data->num_calls++;
1075 }
1076
1077 return 0;
1078 }
1079
1080 /*
1081 * Async read()
1082 */
1083 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
1084 {
1085 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
1086 }
1087
1088
1089
1090 /*
1091 * Async pwrite()
1092 */
1093 static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1094 {
1095 struct nfs_cb_data *data = private_data;
1096 struct nfs_context *nfs = data->nfs;
1097 WRITE3res *res;
1098
1099 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1100
1101 if (status == RPC_STATUS_ERROR) {
1102 data->cb(-EFAULT, nfs, command_data, data->private_data);
1103 free_nfs_cb_data(data);
1104 return;
1105 }
1106 if (status == RPC_STATUS_CANCEL) {
1107 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1108 free_nfs_cb_data(data);
1109 return;
1110 }
1111
1112 res = command_data;
1113 if (res->status != NFS3_OK) {
1114 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1115 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1116 free_nfs_cb_data(data);
1117 return;
1118 }
1119
1120 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1121 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1122 free_nfs_cb_data(data);
1123 }
1124
1125 static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1126 {
1127 struct nfs_mcb_data *mdata = private_data;
1128 struct nfs_cb_data *data = mdata->data;
1129 struct nfs_context *nfs = data->nfs;
1130 WRITE3res *res;
1131
1132 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1133
1134 data->num_calls--;
1135
1136 if (status == RPC_STATUS_ERROR) {
1137 /* flag the failure but do not invoke callback until we have received all responses */
1138 data->error = 1;
1139 }
1140 if (status == RPC_STATUS_CANCEL) {
1141 /* flag the cancellation but do not invoke callback until we have received all responses */
1142 data->cancel = 1;
1143 }
1144
1145 if (status == RPC_STATUS_SUCCESS) {
1146 res = command_data;
1147 if (res->status != NFS3_OK) {
1148 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1149 data->error = 1;
1150 } else {
1151 if (res->WRITE3res_u.resok.count > 0) {
1152 if ((unsigned)data->max_offset < mdata->offset + res->WRITE3res_u.resok.count) {
1153 data->max_offset = mdata->offset + res->WRITE3res_u.resok.count;
1154 }
1155 }
1156 }
1157 }
1158
1159 if (data->num_calls > 0) {
1160 /* still waiting for more replies */
1161 free(mdata);
1162 return;
1163 }
1164
1165 if (data->error != 0) {
1166 data->cb(-EFAULT, nfs, command_data, data->private_data);
1167 free_nfs_cb_data(data);
1168 free(mdata);
1169 return;
1170 }
1171 if (data->cancel != 0) {
1172 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1173 free_nfs_cb_data(data);
1174 free(mdata);
1175 return;
1176 }
1177
1178 data->nfsfh->offset = data->max_offset;
1179 data->cb(data->max_offset - data->start_offset, nfs, NULL, data->private_data);
1180
1181 free_nfs_cb_data(data);
1182 free(mdata);
1183 }
1184
1185
1186 int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1187 {
1188 struct nfs_cb_data *data;
1189
1190 data = malloc(sizeof(struct nfs_cb_data));
1191 if (data == NULL) {
1192 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1193 return -1;
1194 }
1195 memset(data, 0, sizeof(struct nfs_cb_data));
1196 data->nfs = nfs;
1197 data->cb = cb;
1198 data->private_data = private_data;
1199 data->nfsfh = nfsfh;
1200
1201 nfsfh->offset = offset;
1202
1203 if (count <= nfs_get_writemax(nfs)) {
1204 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
1205 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1206 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1207 free_nfs_cb_data(data);
1208 return -1;
1209 }
1210 return 0;
1211 }
1212
1213 /* trying to write more than maximum server write size, we has to chop it up into smaller
1214 * chunks.
1215 * we send all writes in parallell so that performance is still good.
1216 */
1217 data->max_offset = offset;
1218 data->start_offset = offset;
1219
1220 while (count > 0) {
1221 uint64_t writecount = count;
1222 struct nfs_mcb_data *mdata;
1223
1224 if (writecount > nfs_get_writemax(nfs)) {
1225 writecount = nfs_get_writemax(nfs);
1226 }
1227
1228 mdata = malloc(sizeof(struct nfs_mcb_data));
1229 if (mdata == NULL) {
1230 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1231 return -1;
1232 }
1233 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1234 mdata->data = data;
1235 mdata->offset = offset;
1236 mdata->count = writecount;
1237
1238 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_mcb, &nfsfh->fh, &buf[offset - data->start_offset], offset, writecount, nfsfh->is_sync?FILE_SYNC:UNSTABLE, mdata) != 0) {
1239 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1240 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1241 free(mdata);
1242 return -1;
1243 }
1244
1245 count -= writecount;
1246 offset += writecount;
1247 data->num_calls++;
1248 }
1249
1250 return 0;
1251 }
1252
1253 /*
1254 * Async write()
1255 */
1256 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1257 {
1258 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1259 }
1260
1261
1262
1263
1264 /*
1265 * close
1266 */
1267
1268 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1269 {
1270 if (nfsfh->fh.data.data_val != NULL){
1271 free(nfsfh->fh.data.data_val);
1272 nfsfh->fh.data.data_val = NULL;
1273 }
1274 free(nfsfh);
1275
1276 cb(0, nfs, NULL, private_data);
1277 return 0;
1278 };
1279
1280
1281
1282
1283
1284 /*
1285 * Async fstat()
1286 */
1287 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1288 {
1289 struct nfs_cb_data *data;
1290
1291 data = malloc(sizeof(struct nfs_cb_data));
1292 if (data == NULL) {
1293 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1294 return -1;
1295 }
1296 memset(data, 0, sizeof(struct nfs_cb_data));
1297 data->nfs = nfs;
1298 data->cb = cb;
1299 data->private_data = private_data;
1300
1301 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
1302 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1303 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1304 free_nfs_cb_data(data);
1305 return -1;
1306 }
1307 return 0;
1308 }
1309
1310
1311
1312 /*
1313 * Async fsync()
1314 */
1315 static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1316 {
1317 struct nfs_cb_data *data = private_data;
1318 struct nfs_context *nfs = data->nfs;
1319 COMMIT3res *res;
1320
1321 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1322
1323 if (status == RPC_STATUS_ERROR) {
1324 data->cb(-EFAULT, nfs, command_data, data->private_data);
1325 free_nfs_cb_data(data);
1326 return;
1327 }
1328 if (status == RPC_STATUS_CANCEL) {
1329 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1330 free_nfs_cb_data(data);
1331 return;
1332 }
1333
1334 res = command_data;
1335 if (res->status != NFS3_OK) {
1336 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1337 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1338 free_nfs_cb_data(data);
1339 return;
1340 }
1341
1342 data->cb(0, nfs, NULL, data->private_data);
1343 free_nfs_cb_data(data);
1344 }
1345
1346 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1347 {
1348 struct nfs_cb_data *data;
1349
1350 data = malloc(sizeof(struct nfs_cb_data));
1351 if (data == NULL) {
1352 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1353 return -1;
1354 }
1355 memset(data, 0, sizeof(struct nfs_cb_data));
1356 data->nfs = nfs;
1357 data->cb = cb;
1358 data->private_data = private_data;
1359
1360 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1361 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1362 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1363 free_nfs_cb_data(data);
1364 return -1;
1365 }
1366 return 0;
1367 }
1368
1369
1370
1371
1372 /*
1373 * Async ftruncate()
1374 */
1375 static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1376 {
1377 struct nfs_cb_data *data = private_data;
1378 struct nfs_context *nfs = data->nfs;
1379 SETATTR3res *res;
1380
1381 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1382
1383 if (status == RPC_STATUS_ERROR) {
1384 data->cb(-EFAULT, nfs, command_data, data->private_data);
1385 free_nfs_cb_data(data);
1386 return;
1387 }
1388 if (status == RPC_STATUS_CANCEL) {
1389 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1390 free_nfs_cb_data(data);
1391 return;
1392 }
1393
1394 res = command_data;
1395 if (res->status != NFS3_OK) {
1396 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1397 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1398 free_nfs_cb_data(data);
1399 return;
1400 }
1401
1402 data->cb(0, nfs, NULL, data->private_data);
1403 free_nfs_cb_data(data);
1404 }
1405
1406 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
1407 {
1408 struct nfs_cb_data *data;
1409 SETATTR3args args;
1410
1411 data = malloc(sizeof(struct nfs_cb_data));
1412 if (data == NULL) {
1413 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1414 return -1;
1415 }
1416 memset(data, 0, sizeof(struct nfs_cb_data));
1417 data->nfs = nfs;
1418 data->cb = cb;
1419 data->private_data = private_data;
1420
1421 memset(&args, 0, sizeof(SETATTR3args));
1422 args.object.data.data_len = nfsfh->fh.data.data_len;
1423 args.object.data.data_val = nfsfh->fh.data.data_val;
1424 args.new_attributes.size.set_it = 1;
1425 args.new_attributes.size.set_size3_u.size = length;
1426
1427 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1428 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1429 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1430 free_nfs_cb_data(data);
1431 return -1;
1432 }
1433 return 0;
1434 }
1435
1436
1437 /*
1438 * Async truncate()
1439 */
1440 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1441 {
1442 uint64_t offset = data->continue_int;
1443 struct nfsfh nfsfh;
1444
1445 nfsfh.fh.data.data_val = data->fh.data.data_val;
1446 nfsfh.fh.data.data_len = data->fh.data.data_len;
1447
1448 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1449 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1450 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1451 free_nfs_cb_data(data);
1452 return -1;
1453 }
1454 free_nfs_cb_data(data);
1455 return 0;
1456 }
1457
1458 int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
1459 {
1460 uint64_t offset;
1461
1462 offset = length;
1463
1464 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1465 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1466 return -1;
1467 }
1468
1469 return 0;
1470 }
1471
1472
1473
1474
1475 /*
1476 * Async mkdir()
1477 */
1478 static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1479 {
1480 MKDIR3res *res;
1481 struct nfs_cb_data *data = private_data;
1482 struct nfs_context *nfs = data->nfs;
1483 char *str = data->continue_data;
1484
1485 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1486
1487 str = &str[strlen(str) + 1];
1488
1489 if (status == RPC_STATUS_ERROR) {
1490 data->cb(-EFAULT, nfs, command_data, data->private_data);
1491 free_nfs_cb_data(data);
1492 return;
1493 }
1494 if (status == RPC_STATUS_CANCEL) {
1495 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1496 free_nfs_cb_data(data);
1497 return;
1498 }
1499
1500 res = command_data;
1501 if (res->status != NFS3_OK) {
1502 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));
1503 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1504 free_nfs_cb_data(data);
1505 return;
1506 }
1507
1508 data->cb(0, nfs, NULL, data->private_data);
1509 free_nfs_cb_data(data);
1510 }
1511
1512 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1513 {
1514 char *str = data->continue_data;
1515 MKDIR3args args;
1516
1517 str = &str[strlen(str) + 1];
1518
1519 memset(&args, 0, sizeof(MKDIR3args));
1520 args.where.dir.data.data_len = data->fh.data.data_len;
1521 args.where.dir.data.data_val = data->fh.data.data_val;
1522 args.where.name = str;
1523 args.attributes.mode.set_it = 1;
1524 args.attributes.mode.set_mode3_u.mode = 0755;
1525
1526 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
1527 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1528 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1529 free_nfs_cb_data(data);
1530 return -1;
1531 }
1532 return 0;
1533 }
1534
1535 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1536 {
1537 char *new_path;
1538 char *ptr;
1539
1540 new_path = strdup(path);
1541 if (new_path == NULL) {
1542 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1543 return -1;
1544 }
1545
1546 ptr = strrchr(new_path, '/');
1547 if (ptr == NULL) {
1548 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1549 return -1;
1550 }
1551 *ptr = 0;
1552
1553 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1554 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1555 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1556 return -1;
1557 }
1558
1559 return 0;
1560 }
1561
1562
1563
1564
1565
1566 /*
1567 * Async rmdir()
1568 */
1569 static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1570 {
1571 RMDIR3res *res;
1572 struct nfs_cb_data *data = private_data;
1573 struct nfs_context *nfs = data->nfs;
1574 char *str = data->continue_data;
1575
1576 assert(rpc->magic == RPC_CONTEXT_MAGIC);
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: RMDIR 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_rmdir_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_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1610 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR 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_rmdir_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_rmdir_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 * Async creat()
1650 */
1651 static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1652 {
1653 LOOKUP3res *res;
1654 struct nfs_cb_data *data = private_data;
1655 struct nfs_context *nfs = data->nfs;
1656 struct nfsfh *nfsfh;
1657 char *str = data->continue_data;
1658
1659 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1660
1661 if (status == RPC_STATUS_ERROR) {
1662 data->cb(-EFAULT, nfs, command_data, data->private_data);
1663 free_nfs_cb_data(data);
1664 return;
1665 }
1666 if (status == RPC_STATUS_CANCEL) {
1667 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1668 free_nfs_cb_data(data);
1669 return;
1670 }
1671
1672 str = &str[strlen(str) + 1];
1673 res = command_data;
1674 if (res->status != NFS3_OK) {
1675 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));
1676 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1677
1678 return;
1679 }
1680
1681 nfsfh = malloc(sizeof(struct nfsfh));
1682 if (nfsfh == NULL) {
1683 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1684 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1685 free_nfs_cb_data(data);
1686 return;
1687 }
1688 memset(nfsfh, 0, sizeof(struct nfsfh));
1689
1690 /* copy the filehandle */
1691 nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
1692 nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
1693 memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
1694
1695 data->cb(0, nfs, nfsfh, data->private_data);
1696 free_nfs_cb_data(data);
1697 }
1698
1699
1700
1701 static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1702 {
1703 CREATE3res *res;
1704 struct nfs_cb_data *data = private_data;
1705 struct nfs_context *nfs = data->nfs;
1706 char *str = data->continue_data;
1707
1708 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1709
1710 if (status == RPC_STATUS_ERROR) {
1711 data->cb(-EFAULT, nfs, command_data, data->private_data);
1712 free_nfs_cb_data(data);
1713 return;
1714 }
1715 if (status == RPC_STATUS_CANCEL) {
1716 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1717 free_nfs_cb_data(data);
1718 return;
1719 }
1720
1721 str = &str[strlen(str) + 1];
1722 res = command_data;
1723 if (res->status != NFS3_OK) {
1724 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));
1725 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1726
1727 return;
1728 }
1729
1730 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
1731 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
1732 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1733 free_nfs_cb_data(data);
1734 return;
1735 }
1736 return;
1737 }
1738
1739 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1740 {
1741 char *str = data->continue_data;
1742 CREATE3args args;
1743
1744 str = &str[strlen(str) + 1];
1745
1746 memset(&args, 0, sizeof(CREATE3args));
1747 args.where.dir.data.data_len = data->fh.data.data_len;
1748 args.where.dir.data.data_val = data->fh.data.data_val;
1749 args.where.name = str;
1750 args.how.mode = UNCHECKED;
1751 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
1752 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
1753
1754 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
1755 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
1756 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1757 free_nfs_cb_data(data);
1758 return -1;
1759 }
1760 return 0;
1761 }
1762
1763 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1764 {
1765 char *new_path;
1766 char *ptr;
1767
1768 new_path = strdup(path);
1769 if (new_path == NULL) {
1770 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1771 return -1;
1772 }
1773
1774 ptr = strrchr(new_path, '/');
1775 if (ptr == NULL) {
1776 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1777 return -1;
1778 }
1779 *ptr = 0;
1780
1781 /* new_path now points to the parent directory, and beyond the nul terminator is the new directory to create */
1782 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
1783 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1784 return -1;
1785 }
1786
1787 return 0;
1788 }
1789
1790
1791
1792
1793 /*
1794 * Async unlink()
1795 */
1796 static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1797 {
1798 REMOVE3res *res;
1799 struct nfs_cb_data *data = private_data;
1800 struct nfs_context *nfs = data->nfs;
1801 char *str = data->continue_data;
1802
1803 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1804
1805 str = &str[strlen(str) + 1];
1806
1807 if (status == RPC_STATUS_ERROR) {
1808 data->cb(-EFAULT, nfs, command_data, data->private_data);
1809 free_nfs_cb_data(data);
1810 return;
1811 }
1812 if (status == RPC_STATUS_CANCEL) {
1813 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1814 free_nfs_cb_data(data);
1815 return;
1816 }
1817
1818 res = command_data;
1819 if (res->status != NFS3_OK) {
1820 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));
1821 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1822 free_nfs_cb_data(data);
1823 return;
1824 }
1825
1826 data->cb(0, nfs, NULL, data->private_data);
1827 free_nfs_cb_data(data);
1828 }
1829
1830 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1831 {
1832 char *str = data->continue_data;
1833
1834 str = &str[strlen(str) + 1];
1835
1836 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
1837 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
1838 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1839 free_nfs_cb_data(data);
1840 return -1;
1841 }
1842 return 0;
1843 }
1844
1845 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1846 {
1847 char *new_path;
1848 char *ptr;
1849
1850 new_path = strdup(path);
1851 if (new_path == NULL) {
1852 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1853 return -1;
1854 }
1855
1856 ptr = strrchr(new_path, '/');
1857 if (ptr == NULL) {
1858 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1859 return -1;
1860 }
1861 *ptr = 0;
1862
1863 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1864 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
1865 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1866 return -1;
1867 }
1868
1869 return 0;
1870 }
1871
1872
1873 /*
1874 * Async mknod()
1875 */
1876 struct mknod_cb_data {
1877 char *path;
1878 int mode;
1879 int major;
1880 int minor;
1881 };
1882
1883 static void free_mknod_cb_data(void *ptr)
1884 {
1885 struct mknod_cb_data *data = ptr;
1886
1887 free(data->path);
1888 free(data);
1889 }
1890
1891 static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1892 {
1893 MKNOD3res *res;
1894 struct nfs_cb_data *data = private_data;
1895 struct nfs_context *nfs = data->nfs;
1896 char *str = data->continue_data;
1897
1898 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1899
1900 str = &str[strlen(str) + 1];
1901
1902 if (status == RPC_STATUS_ERROR) {
1903 data->cb(-EFAULT, nfs, command_data, data->private_data);
1904 free_nfs_cb_data(data);
1905 return;
1906 }
1907 if (status == RPC_STATUS_CANCEL) {
1908 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1909 free_nfs_cb_data(data);
1910 return;
1911 }
1912
1913 res = command_data;
1914 if (res->status != NFS3_OK) {
1915 rpc_set_error(nfs->rpc, "NFS: MKNOD of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1916 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1917 free_nfs_cb_data(data);
1918 return;
1919 }
1920
1921 data->cb(0, nfs, NULL, data->private_data);
1922 free_nfs_cb_data(data);
1923 }
1924
1925 static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1926 {
1927 struct mknod_cb_data *cb_data = data->continue_data;
1928 char *str = cb_data->path;
1929
1930 str = &str[strlen(str) + 1];
1931
1932 if (rpc_nfs_mknod_async(nfs->rpc, nfs_mknod_cb, &data->fh, str, cb_data->mode, cb_data->major, cb_data->minor, data) != 0) {
1933 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1934 free_nfs_cb_data(data);
1935 return -1;
1936 }
1937 return 0;
1938 }
1939
1940 int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
1941 {
1942 char *ptr;
1943 struct mknod_cb_data *cb_data;
1944
1945 cb_data = malloc(sizeof(struct mknod_cb_data));
1946 if (cb_data == NULL) {
1947 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
1948 return -1;
1949 }
1950
1951 cb_data->path = strdup(path);
1952 if (cb_data->path == NULL) {
1953 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1954 free(cb_data);
1955 return -1;
1956 }
1957
1958 ptr = strrchr(cb_data->path, '/');
1959 if (ptr == NULL) {
1960 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1961 return -1;
1962 }
1963 *ptr = 0;
1964
1965 cb_data->mode = mode;
1966 cb_data->major = major(dev);
1967 cb_data->minor = minor(dev);
1968
1969 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1970 if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
1971 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1972 free_mknod_cb_data(cb_data);
1973 return -1;
1974 }
1975
1976 return 0;
1977 }
1978
1979 /*
1980 * Async opendir()
1981 */
1982
1983 /* ReadDirPlus Emulation Callback data */
1984 struct rdpe_cb_data {
1985 int getattrcount;
1986 int status;
1987 struct nfs_cb_data *data;
1988 };
1989
1990 /* ReadDirPlus Emulation LOOKUP Callback data */
1991 struct rdpe_lookup_cb_data {
1992 struct rdpe_cb_data *rdpe_cb_data;
1993 struct nfsdirent *nfsdirent;
1994 };
1995
1996 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
1997 static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1998 {
1999 LOOKUP3res *res = command_data;
2000 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
2001 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
2002 struct nfs_cb_data *data = rdpe_cb_data->data;
2003 struct nfsdir *nfsdir = data->continue_data;
2004 struct nfs_context *nfs = data->nfs;
2005 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
2006
2007 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2008
2009 free(rdpe_lookup_cb_data);
2010
2011 rdpe_cb_data->getattrcount--;
2012
2013 if (status == RPC_STATUS_ERROR) {
2014 rdpe_cb_data->status = RPC_STATUS_ERROR;
2015 }
2016 if (status == RPC_STATUS_CANCEL) {
2017 rdpe_cb_data->status = RPC_STATUS_CANCEL;
2018 }
2019 if (status == RPC_STATUS_SUCCESS && res->status != NFS3_OK) {
2020 rdpe_cb_data->status = RPC_STATUS_ERROR;
2021 }
2022 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
2023 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
2024 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
2025
2026 nfsdirent->type = attributes->type;
2027 nfsdirent->mode = attributes->mode;
2028 nfsdirent->size = attributes->size;
2029
2030 nfsdirent->atime.tv_sec = attributes->atime.seconds;
2031 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
2032 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
2033 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
2034 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
2035 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
2036 }
2037 }
2038
2039 if (rdpe_cb_data->getattrcount == 0) {
2040 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
2041 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2042 nfs_free_nfsdir(nfsdir);
2043 } else {
2044 data->cb(0, nfs, nfsdir, data->private_data);
2045 }
2046 free(rdpe_cb_data);
2047
2048 data->continue_data = NULL;
2049 free_nfs_cb_data(data);
2050 }
2051 }
2052
2053 static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2054 {
2055 READDIR3res *res = command_data;
2056 struct nfs_cb_data *data = private_data;
2057 struct nfs_context *nfs = data->nfs;
2058 struct nfsdir *nfsdir = data->continue_data;
2059 struct nfsdirent *nfsdirent;
2060 struct entry3 *entry;
2061 uint64_t cookie;
2062 struct rdpe_cb_data *rdpe_cb_data;
2063
2064 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2065
2066 if (status == RPC_STATUS_ERROR) {
2067 data->cb(-EFAULT, nfs, command_data, data->private_data);
2068 nfs_free_nfsdir(nfsdir);
2069 data->continue_data = NULL;
2070 free_nfs_cb_data(data);
2071 return;
2072 }
2073
2074 if (status == RPC_STATUS_CANCEL) {
2075 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2076 nfs_free_nfsdir(nfsdir);
2077 data->continue_data = NULL;
2078 free_nfs_cb_data(data);
2079 return;
2080 }
2081
2082 if (res->status != NFS3_OK) {
2083 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));
2084 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2085 nfs_free_nfsdir(nfsdir);
2086 data->continue_data = NULL;
2087 free_nfs_cb_data(data);
2088 return;
2089 }
2090
2091 entry =res->READDIR3res_u.resok.reply.entries;
2092 while (entry != NULL) {
2093 nfsdirent = malloc(sizeof(struct nfsdirent));
2094 if (nfsdirent == NULL) {
2095 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2096 nfs_free_nfsdir(nfsdir);
2097 data->continue_data = NULL;
2098 free_nfs_cb_data(data);
2099 return;
2100 }
2101 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2102 nfsdirent->name = strdup(entry->name);
2103 if (nfsdirent->name == NULL) {
2104 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2105 nfs_free_nfsdir(nfsdir);
2106 data->continue_data = NULL;
2107 free_nfs_cb_data(data);
2108 return;
2109 }
2110 nfsdirent->inode = entry->fileid;
2111
2112 nfsdirent->next = nfsdir->entries;
2113 nfsdir->entries = nfsdirent;
2114
2115 cookie = entry->cookie;
2116 entry = entry->nextentry;
2117 }
2118
2119 if (res->READDIR3res_u.resok.reply.eof == 0) {
2120 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 8192, data) != 0) {
2121 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2122 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2123 nfs_free_nfsdir(nfsdir);
2124 data->continue_data = NULL;
2125 free_nfs_cb_data(data);
2126 return;
2127 }
2128 return;
2129 }
2130
2131 /* steal the dirhandle */
2132 nfsdir->current = nfsdir->entries;
2133
2134 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
2135 rdpe_cb_data->getattrcount = 0;
2136 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
2137 rdpe_cb_data->data = data;
2138 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
2139 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
2140
2141 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
2142 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
2143 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
2144
2145 if (rpc_nfs_lookup_async(nfs->rpc, nfs_opendir3_cb, &data->fh, nfsdirent->name, rdpe_lookup_cb_data) != 0) {
2146 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
2147
2148 /* if we have already commands in flight, we cant just stop, we have to wait for the
2149 * commands in flight to complete
2150 */
2151 if (rdpe_cb_data->getattrcount > 0) {
2152 rdpe_cb_data->status = RPC_STATUS_ERROR;
2153 free(rdpe_lookup_cb_data);
2154 return;
2155 }
2156
2157 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2158 nfs_free_nfsdir(nfsdir);
2159 data->continue_data = NULL;
2160 free_nfs_cb_data(data);
2161 free(rdpe_lookup_cb_data);
2162 free(rdpe_cb_data);
2163 return;
2164 }
2165 rdpe_cb_data->getattrcount++;
2166 }
2167 }
2168
2169
2170 static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2171 {
2172 READDIRPLUS3res *res = command_data;
2173 struct nfs_cb_data *data = private_data;
2174 struct nfs_context *nfs = data->nfs;
2175 struct nfsdir *nfsdir = data->continue_data;
2176 struct entryplus3 *entry;
2177 uint64_t cookie;
2178
2179 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2180
2181 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
2182 cookieverf3 cv;
2183
2184 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2185 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2186 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2187 nfs_free_nfsdir(nfsdir);
2188 data->continue_data = NULL;
2189 free_nfs_cb_data(data);
2190 return;
2191 }
2192 return;
2193 }
2194
2195 if (status == RPC_STATUS_CANCEL) {
2196 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2197 nfs_free_nfsdir(nfsdir);
2198 data->continue_data = NULL;
2199 free_nfs_cb_data(data);
2200 return;
2201 }
2202
2203 if (res->status != NFS3_OK) {
2204 rpc_set_error(nfs->rpc, "NFS: READDIRPLUS of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2205 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2206 nfs_free_nfsdir(nfsdir);
2207 data->continue_data = NULL;
2208 free_nfs_cb_data(data);
2209 return;
2210 }
2211
2212 entry =res->READDIRPLUS3res_u.resok.reply.entries;
2213 while (entry != NULL) {
2214 struct nfsdirent *nfsdirent;
2215
2216 nfsdirent = malloc(sizeof(struct nfsdirent));
2217 if (nfsdirent == NULL) {
2218 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2219 nfs_free_nfsdir(nfsdir);
2220 data->continue_data = NULL;
2221 free_nfs_cb_data(data);
2222 return;
2223 }
2224 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2225 nfsdirent->name = strdup(entry->name);
2226 if (nfsdirent->name == NULL) {
2227 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2228 nfs_free_nfsdir(nfsdir);
2229 data->continue_data = NULL;
2230 free_nfs_cb_data(data);
2231 return;
2232 }
2233 nfsdirent->inode = entry->fileid;
2234 if (entry->name_attributes.attributes_follow) {
2235 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
2236 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
2237 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
2238
2239 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
2240 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
2241 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
2242 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
2243 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
2244 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
2245 }
2246
2247 nfsdirent->next = nfsdir->entries;
2248 nfsdir->entries = nfsdirent;
2249
2250 cookie = entry->cookie;
2251 entry = entry->nextentry;
2252 }
2253
2254 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
2255 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIRPLUS3res_u.resok.cookieverf, 8192, data) != 0) {
2256 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2257 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2258 nfs_free_nfsdir(nfsdir);
2259 data->continue_data = NULL;
2260 free_nfs_cb_data(data);
2261 return;
2262 }
2263 return;
2264 }
2265
2266 /* steal the dirhandle */
2267 data->continue_data = NULL;
2268 nfsdir->current = nfsdir->entries;
2269
2270 data->cb(0, nfs, nfsdir, data->private_data);
2271 free_nfs_cb_data(data);
2272 }
2273
2274 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2275 {
2276 cookieverf3 cv;
2277
2278 memset(cv, 0, sizeof(cookieverf3));
2279 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2280 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2281 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2282 free_nfs_cb_data(data);
2283 return -1;
2284 }
2285 return 0;
2286 }
2287
2288 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2289 {
2290 struct nfsdir *nfsdir;
2291
2292 nfsdir = malloc(sizeof(struct nfsdir));
2293 if (nfsdir == NULL) {
2294 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
2295 return -1;
2296 }
2297 memset(nfsdir, 0, sizeof(struct nfsdir));
2298
2299 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
2300 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2301 return -1;
2302 }
2303
2304 return 0;
2305 }
2306
2307
2308 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2309 {
2310 struct nfsdirent *nfsdirent = nfsdir->current;
2311
2312 if (nfsdir->current != NULL) {
2313 nfsdir->current = nfsdir->current->next;
2314 }
2315 return nfsdirent;
2316 }
2317
2318
2319 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2320 {
2321 nfs_free_nfsdir(nfsdir);
2322 }
2323
2324
2325
2326
2327
2328
2329
2330 /*
2331 * Async lseek()
2332 */
2333 struct lseek_cb_data {
2334 struct nfs_context *nfs;
2335 struct nfsfh *nfsfh;
2336 uint64_t offset;
2337 nfs_cb cb;
2338 void *private_data;
2339 };
2340
2341 static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2342 {
2343 GETATTR3res *res;
2344 struct lseek_cb_data *data = private_data;
2345 struct nfs_context *nfs = data->nfs;
2346
2347 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2348
2349 if (status == RPC_STATUS_ERROR) {
2350 data->cb(-EFAULT, nfs, command_data, data->private_data);
2351 free(data);
2352 return;
2353 }
2354 if (status == RPC_STATUS_CANCEL) {
2355 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2356 free(data);
2357 return;
2358 }
2359
2360 res = command_data;
2361 if (res->status != NFS3_OK) {
2362 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2363 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2364 free(data);
2365 return;
2366 }
2367
2368 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
2369 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
2370 free(data);
2371 }
2372
2373 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
2374 {
2375 struct lseek_cb_data *data;
2376
2377 if (whence == SEEK_SET) {
2378 nfsfh->offset = offset;
2379 cb(0, nfs, &nfsfh->offset, private_data);
2380 return 0;
2381 }
2382 if (whence == SEEK_CUR) {
2383 nfsfh->offset += offset;
2384 cb(0, nfs, &nfsfh->offset, private_data);
2385 return 0;
2386 }
2387
2388 data = malloc(sizeof(struct lseek_cb_data));
2389 if (data == NULL) {
2390 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
2391 return -1;
2392 }
2393
2394 data->nfs = nfs;
2395 data->nfsfh = nfsfh;
2396 data->offset = offset;
2397 data->cb = cb;
2398 data->private_data = private_data;
2399
2400 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
2401 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
2402 free(data);
2403 return -1;
2404 }
2405 return 0;
2406 }
2407
2408
2409
2410
2411 /*
2412 * Async statvfs()
2413 */
2414 static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2415 {
2416 FSSTAT3res *res;
2417 struct nfs_cb_data *data = private_data;
2418 struct nfs_context *nfs = data->nfs;
2419 struct statvfs svfs;
2420
2421 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2422
2423 if (status == RPC_STATUS_ERROR) {
2424 data->cb(-EFAULT, nfs, command_data, data->private_data);
2425 free_nfs_cb_data(data);
2426 return;
2427 }
2428 if (status == RPC_STATUS_CANCEL) {
2429 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2430 free_nfs_cb_data(data);
2431 return;
2432 }
2433
2434 res = command_data;
2435 if (res->status != NFS3_OK) {
2436 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));
2437 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2438 free_nfs_cb_data(data);
2439 return;
2440 }
2441
2442 svfs.f_bsize = 4096;
2443 svfs.f_frsize = 4096;
2444 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
2445 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
2446 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
2447 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
2448 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
2449 #if !defined(ANDROID)
2450 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
2451 svfs.f_fsid = 0;
2452 svfs.f_flag = 0;
2453 svfs.f_namemax = 256;
2454 #endif
2455
2456 data->cb(0, nfs, &svfs, data->private_data);
2457 free_nfs_cb_data(data);
2458 }
2459
2460 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2461 {
2462 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
2463 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
2464 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2465 free_nfs_cb_data(data);
2466 return -1;
2467 }
2468 return 0;
2469 }
2470
2471 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2472 {
2473 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
2474 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2475 return -1;
2476 }
2477
2478 return 0;
2479 }
2480
2481
2482
2483
2484 /*
2485 * Async readlink()
2486 */
2487 static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2488 {
2489 READLINK3res *res;
2490 struct nfs_cb_data *data = private_data;
2491 struct nfs_context *nfs = data->nfs;
2492
2493 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2494
2495 if (status == RPC_STATUS_ERROR) {
2496 data->cb(-EFAULT, nfs, command_data, data->private_data);
2497 free_nfs_cb_data(data);
2498 return;
2499 }
2500 if (status == RPC_STATUS_CANCEL) {
2501 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2502 free_nfs_cb_data(data);
2503 return;
2504 }
2505
2506 res = command_data;
2507 if (res->status != NFS3_OK) {
2508 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));
2509 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2510 free_nfs_cb_data(data);
2511 return;
2512 }
2513
2514
2515 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
2516 free_nfs_cb_data(data);
2517 }
2518
2519 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2520 {
2521 READLINK3args args;
2522
2523 args.symlink.data.data_len = data->fh.data.data_len;
2524 args.symlink.data.data_val = data->fh.data.data_val;
2525
2526 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
2527 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
2528 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2529 free_nfs_cb_data(data);
2530 return -1;
2531 }
2532 return 0;
2533 }
2534
2535 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2536 {
2537 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
2538 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2539 return -1;
2540 }
2541
2542 return 0;
2543 }
2544
2545
2546
2547
2548 /*
2549 * Async chmod()
2550 */
2551 static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2552 {
2553 struct nfs_cb_data *data = private_data;
2554 struct nfs_context *nfs = data->nfs;
2555 SETATTR3res *res;
2556
2557 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2558
2559 if (status == RPC_STATUS_ERROR) {
2560 data->cb(-EFAULT, nfs, command_data, data->private_data);
2561 free_nfs_cb_data(data);
2562 return;
2563 }
2564 if (status == RPC_STATUS_CANCEL) {
2565 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2566 free_nfs_cb_data(data);
2567 return;
2568 }
2569
2570 res = command_data;
2571 if (res->status != NFS3_OK) {
2572 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2573 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2574 free_nfs_cb_data(data);
2575 return;
2576 }
2577
2578 data->cb(0, nfs, NULL, data->private_data);
2579 free_nfs_cb_data(data);
2580 }
2581
2582 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2583 {
2584 SETATTR3args args;
2585
2586 memset(&args, 0, sizeof(SETATTR3args));
2587 args.object.data.data_len = data->fh.data.data_len;
2588 args.object.data.data_val = data->fh.data.data_val;
2589 args.new_attributes.mode.set_it = 1;
2590 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2591
2592 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2593 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2594 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2595 free_nfs_cb_data(data);
2596 return -1;
2597 }
2598 return 0;
2599 }
2600
2601
2602 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2603 {
2604 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
2605 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2606 return -1;
2607 }
2608
2609 return 0;
2610 }
2611
2612 /*
2613 * Async fchmod()
2614 */
2615 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2616 {
2617 struct nfs_cb_data *data;
2618
2619 data = malloc(sizeof(struct nfs_cb_data));
2620 if (data == NULL) {
2621 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
2622 return -1;
2623 }
2624 memset(data, 0, sizeof(struct nfs_cb_data));
2625 data->nfs = nfs;
2626 data->cb = cb;
2627 data->private_data = private_data;
2628 data->continue_int = mode;
2629 data->fh.data.data_len = nfsfh->fh.data.data_len;
2630 data->fh.data.data_val = malloc(data->fh.data.data_len);
2631 if (data->fh.data.data_val == NULL) {
2632 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2633 free_nfs_cb_data(data);
2634 return -1;
2635 }
2636 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2637
2638 if (nfs_chmod_continue_internal(nfs, data) != 0) {
2639 free_nfs_cb_data(data);
2640 return -1;
2641 }
2642
2643 return 0;
2644 }
2645
2646
2647
2648 /*
2649 * Async chown()
2650 */
2651 static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2652 {
2653 struct nfs_cb_data *data = private_data;
2654 struct nfs_context *nfs = data->nfs;
2655 SETATTR3res *res;
2656
2657 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2658
2659 if (status == RPC_STATUS_ERROR) {
2660 data->cb(-EFAULT, nfs, command_data, data->private_data);
2661 free_nfs_cb_data(data);
2662 return;
2663 }
2664 if (status == RPC_STATUS_CANCEL) {
2665 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2666 free_nfs_cb_data(data);
2667 return;
2668 }
2669
2670 res = command_data;
2671 if (res->status != NFS3_OK) {
2672 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2673 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2674 free_nfs_cb_data(data);
2675 return;
2676 }
2677
2678 data->cb(0, nfs, NULL, data->private_data);
2679 free_nfs_cb_data(data);
2680 }
2681
2682 struct nfs_chown_data {
2683 uid_t uid;
2684 gid_t gid;
2685 };
2686
2687 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2688 {
2689 SETATTR3args args;
2690 struct nfs_chown_data *chown_data = data->continue_data;
2691
2692 memset(&args, 0, sizeof(SETATTR3args));
2693 args.object.data.data_len = data->fh.data.data_len;
2694 args.object.data.data_val = data->fh.data.data_val;
2695 if (chown_data->uid != (uid_t)-1) {
2696 args.new_attributes.uid.set_it = 1;
2697 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2698 }
2699 if (chown_data->gid != (gid_t)-1) {
2700 args.new_attributes.gid.set_it = 1;
2701 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2702 }
2703
2704 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2705 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2706 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2707 free_nfs_cb_data(data);
2708 return -1;
2709 }
2710 return 0;
2711 }
2712
2713
2714 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
2715 {
2716 struct nfs_chown_data *chown_data;
2717
2718 chown_data = malloc(sizeof(struct nfs_chown_data));
2719 if (chown_data == NULL) {
2720 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2721 return -1;
2722 }
2723
2724 chown_data->uid = uid;
2725 chown_data->gid = gid;
2726
2727 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
2728 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2729 return -1;
2730 }
2731
2732 return 0;
2733 }
2734
2735
2736 /*
2737 * Async fchown()
2738 */
2739 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
2740 {
2741 struct nfs_cb_data *data;
2742 struct nfs_chown_data *chown_data;
2743
2744 chown_data = malloc(sizeof(struct nfs_chown_data));
2745 if (chown_data == NULL) {
2746 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
2747 return -1;
2748 }
2749
2750 chown_data->uid = uid;
2751 chown_data->gid = gid;
2752
2753
2754 data = malloc(sizeof(struct nfs_cb_data));
2755 if (data == NULL) {
2756 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
2757 return -1;
2758 }
2759 memset(data, 0, sizeof(struct nfs_cb_data));
2760 data->nfs = nfs;
2761 data->cb = cb;
2762 data->private_data = private_data;
2763 data->continue_data = chown_data;
2764 data->fh.data.data_len = nfsfh->fh.data.data_len;
2765 data->fh.data.data_val = malloc(data->fh.data.data_len);
2766 if (data->fh.data.data_val == NULL) {
2767 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2768 free_nfs_cb_data(data);
2769 return -1;
2770 }
2771 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2772
2773
2774 if (nfs_chown_continue_internal(nfs, data) != 0) {
2775 free_nfs_cb_data(data);
2776 return -1;
2777 }
2778
2779 return 0;
2780 }
2781
2782
2783
2784
2785
2786 /*
2787 * Async utimes()
2788 */
2789 static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2790 {
2791 struct nfs_cb_data *data = private_data;
2792 struct nfs_context *nfs = data->nfs;
2793 SETATTR3res *res;
2794
2795 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2796
2797 if (status == RPC_STATUS_ERROR) {
2798 data->cb(-EFAULT, nfs, command_data, data->private_data);
2799 free_nfs_cb_data(data);
2800 return;
2801 }
2802 if (status == RPC_STATUS_CANCEL) {
2803 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2804 free_nfs_cb_data(data);
2805 return;
2806 }
2807
2808 res = command_data;
2809 if (res->status != NFS3_OK) {
2810 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2811 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2812 free_nfs_cb_data(data);
2813 return;
2814 }
2815
2816 data->cb(0, nfs, NULL, data->private_data);
2817 free_nfs_cb_data(data);
2818 }
2819
2820 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2821 {
2822 SETATTR3args args;
2823 struct timeval *utimes_data = data->continue_data;
2824
2825 memset(&args, 0, sizeof(SETATTR3args));
2826 args.object.data.data_len = data->fh.data.data_len;
2827 args.object.data.data_val = data->fh.data.data_val;
2828 if (utimes_data != NULL) {
2829 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
2830 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
2831 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
2832 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
2833 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
2834 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
2835 } else {
2836 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
2837 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
2838 }
2839
2840 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
2841 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2842 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2843 free_nfs_cb_data(data);
2844 return -1;
2845 }
2846 return 0;
2847 }
2848
2849
2850 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
2851 {
2852 struct timeval *new_times = NULL;
2853
2854 if (times != NULL) {
2855 new_times = malloc(sizeof(struct timeval)*2);
2856 if (new_times == NULL) {
2857 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2858 return -1;
2859 }
2860
2861 memcpy(new_times, times, sizeof(struct timeval)*2);
2862 }
2863
2864 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2865 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2866 return -1;
2867 }
2868
2869 return 0;
2870 }
2871
2872 /*
2873 * Async utime()
2874 */
2875 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
2876 {
2877 struct timeval *new_times = NULL;
2878
2879 if (times != NULL) {
2880 new_times = malloc(sizeof(struct timeval)*2);
2881 if (new_times == NULL) {
2882 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
2883 return -1;
2884 }
2885
2886 new_times[0].tv_sec = times->actime;
2887 new_times[0].tv_usec = 0;
2888 new_times[1].tv_sec = times->modtime;
2889 new_times[1].tv_usec = 0;
2890 }
2891
2892 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2893 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2894 return -1;
2895 }
2896
2897 return 0;
2898 }
2899
2900
2901 /*
2902 * Async access()
2903 */
2904 static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2905 {
2906 ACCESS3res *res;
2907 struct nfs_cb_data *data = private_data;
2908 struct nfs_context *nfs = data->nfs;
2909 unsigned int nfsmode = 0;
2910
2911 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2912
2913 if (status == RPC_STATUS_ERROR) {
2914 data->cb(-EFAULT, nfs, command_data, data->private_data);
2915 free_nfs_cb_data(data);
2916 return;
2917 }
2918 if (status == RPC_STATUS_CANCEL) {
2919 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2920 free_nfs_cb_data(data);
2921 return;
2922 }
2923
2924 res = command_data;
2925 if (res->status != NFS3_OK) {
2926 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));
2927 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2928 free_nfs_cb_data(data);
2929 return;
2930 }
2931
2932 if (data->continue_int & R_OK) {
2933 nfsmode |= ACCESS3_READ;
2934 }
2935 if (data->continue_int & W_OK) {
2936 nfsmode |= ACCESS3_MODIFY;
2937 }
2938 if (data->continue_int & X_OK) {
2939 nfsmode |= ACCESS3_EXECUTE;
2940 }
2941
2942 if (res->ACCESS3res_u.resok.access != nfsmode) {
2943 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
2944 nfsmode&ACCESS3_READ?'r':'-',
2945 nfsmode&ACCESS3_MODIFY?'w':'-',
2946 nfsmode&ACCESS3_EXECUTE?'x':'-',
2947 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
2948 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
2949 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
2950 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
2951 free_nfs_cb_data(data);
2952 return;
2953 }
2954
2955 data->cb(0, nfs, NULL, data->private_data);
2956 free_nfs_cb_data(data);
2957 }
2958
2959 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2960 {
2961 int nfsmode = 0;
2962
2963 if (data->continue_int & R_OK) {
2964 nfsmode |= ACCESS3_READ;
2965 }
2966 if (data->continue_int & W_OK) {
2967 nfsmode |= ACCESS3_MODIFY;
2968 }
2969 if (data->continue_int & X_OK) {
2970 nfsmode |= ACCESS3_EXECUTE;
2971 }
2972
2973 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
2974 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
2975 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2976 free_nfs_cb_data(data);
2977 return -1;
2978 }
2979 return 0;
2980 }
2981
2982 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2983 {
2984 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
2985 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2986 return -1;
2987 }
2988
2989 return 0;
2990 }
2991
2992
2993
2994 /*
2995 * Async symlink()
2996 */
2997 struct nfs_symlink_data {
2998 char *oldpath;
2999 char *newpathparent;
3000 char *newpathobject;
3001 };
3002
3003 static void free_nfs_symlink_data(void *mem)
3004 {
3005 struct nfs_symlink_data *data = mem;
3006
3007 if (data->oldpath != NULL) {
3008 free(data->oldpath);
3009 }
3010 if (data->newpathparent != NULL) {
3011 free(data->newpathparent);
3012 }
3013 if (data->newpathobject != NULL) {
3014 free(data->newpathobject);
3015 }
3016 free(data);
3017 }
3018
3019 static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3020 {
3021 SYMLINK3res *res;
3022 struct nfs_cb_data *data = private_data;
3023 struct nfs_context *nfs = data->nfs;
3024 struct nfs_symlink_data *symlink_data = data->continue_data;
3025
3026 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3027
3028 if (status == RPC_STATUS_ERROR) {
3029 data->cb(-EFAULT, nfs, command_data, data->private_data);
3030 free_nfs_cb_data(data);
3031 return;
3032 }
3033 if (status == RPC_STATUS_CANCEL) {
3034 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3035 free_nfs_cb_data(data);
3036 return;
3037 }
3038
3039 res = command_data;
3040 if (res->status != NFS3_OK) {
3041 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));
3042 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3043 free_nfs_cb_data(data);
3044 return;
3045 }
3046
3047 data->cb(0, nfs, NULL, data->private_data);
3048 free_nfs_cb_data(data);
3049 }
3050
3051 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3052 {
3053 struct nfs_symlink_data *symlink_data = data->continue_data;
3054 SYMLINK3args sa;
3055
3056 memset(&sa, 0, sizeof(SYMLINK3args));
3057 sa.where.dir.data.data_len = data->fh.data.data_len;
3058 sa.where.dir.data.data_val = data->fh.data.data_val;
3059 sa.where.name = symlink_data->newpathobject;
3060 sa.symlink.symlink_attributes.mode.set_it = 1;
3061 sa.symlink.symlink_attributes.mode.set_mode3_u.mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH;
3062 sa.symlink.symlink_data = symlink_data->oldpath;
3063
3064 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &sa, data) != 0) {
3065 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
3066 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3067 free_nfs_cb_data(data);
3068 return -1;
3069 }
3070 return 0;
3071 }
3072
3073 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3074 {
3075 char *ptr;
3076 struct nfs_symlink_data *symlink_data;
3077
3078 symlink_data = malloc(sizeof(struct nfs_symlink_data));
3079 if (symlink_data == NULL) {
3080 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
3081 return -1;
3082 }
3083 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
3084
3085 symlink_data->oldpath = strdup(oldpath);
3086 if (symlink_data->oldpath == NULL) {
3087 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3088 free_nfs_symlink_data(symlink_data);
3089 return -1;
3090 }
3091
3092 symlink_data->newpathparent = strdup(newpath);
3093 if (symlink_data->newpathparent == NULL) {
3094 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3095 free_nfs_symlink_data(symlink_data);
3096 return -1;
3097 }
3098
3099 ptr = strrchr(symlink_data->newpathparent, '/');
3100 if (ptr == NULL) {
3101 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3102 free_nfs_symlink_data(symlink_data);
3103 return -1;
3104 }
3105 *ptr = 0;
3106 ptr++;
3107
3108 symlink_data->newpathobject = strdup(ptr);
3109 if (symlink_data->newpathobject == NULL) {
3110 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3111 free_nfs_symlink_data(symlink_data);
3112 return -1;
3113 }
3114
3115 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
3116 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3117 return -1;
3118 }
3119
3120 return 0;
3121 }
3122
3123
3124
3125 /*
3126 * Async rename()
3127 */
3128 struct nfs_rename_data {
3129 char *oldpath;
3130 char *oldobject;
3131 struct nfs_fh3 olddir;
3132 char *newpath;
3133 char *newobject;
3134 struct nfs_fh3 newdir;
3135 };
3136
3137 static void free_nfs_rename_data(void *mem)
3138 {
3139 struct nfs_rename_data *data = mem;
3140
3141 if (data->oldpath != NULL) {
3142 free(data->oldpath);
3143 }
3144 if (data->olddir.data.data_val != NULL) {
3145 free(data->olddir.data.data_val);
3146 }
3147 if (data->newpath != NULL) {
3148 free(data->newpath);
3149 }
3150 if (data->newdir.data.data_val != NULL) {
3151 free(data->newdir.data.data_val);
3152 }
3153 free(data);
3154 }
3155
3156 static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3157 {
3158 RENAME3res *res;
3159 struct nfs_cb_data *data = private_data;
3160 struct nfs_context *nfs = data->nfs;
3161 struct nfs_rename_data *rename_data = data->continue_data;
3162
3163 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3164
3165 if (status == RPC_STATUS_ERROR) {
3166 data->cb(-EFAULT, nfs, command_data, data->private_data);
3167 free_nfs_cb_data(data);
3168 return;
3169 }
3170 if (status == RPC_STATUS_CANCEL) {
3171 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3172 free_nfs_cb_data(data);
3173 return;
3174 }
3175
3176 res = command_data;
3177 if (res->status != NFS3_OK) {
3178 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));
3179 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3180 free_nfs_cb_data(data);
3181 return;
3182 }
3183
3184 data->cb(0, nfs, NULL, data->private_data);
3185 free_nfs_cb_data(data);
3186 }
3187
3188 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3189 {
3190 struct nfs_rename_data *rename_data = data->continue_data;
3191
3192 /* steal the filehandle */
3193 rename_data->newdir.data.data_len = data->fh.data.data_len;
3194 rename_data->newdir.data.data_val = data->fh.data.data_val;
3195 data->fh.data.data_val = NULL;
3196
3197 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
3198 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
3199 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3200 free_nfs_cb_data(data);
3201 return -1;
3202 }
3203 return 0;
3204 }
3205
3206
3207 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3208 {
3209 struct nfs_rename_data *rename_data = data->continue_data;
3210
3211 /* steal the filehandle */
3212 rename_data->olddir.data.data_len = data->fh.data.data_len;
3213 rename_data->olddir.data.data_val = data->fh.data.data_val;
3214 data->fh.data.data_val = NULL;
3215
3216 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) {
3217 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
3218 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3219 free_nfs_cb_data(data);
3220 return -1;
3221 }
3222 data->continue_data = NULL;
3223 free_nfs_cb_data(data);
3224
3225 return 0;
3226 }
3227
3228
3229 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3230 {
3231 char *ptr;
3232 struct nfs_rename_data *rename_data;
3233
3234 rename_data = malloc(sizeof(struct nfs_rename_data));
3235 if (rename_data == NULL) {
3236 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
3237 return -1;
3238 }
3239 memset(rename_data, 0, sizeof(struct nfs_rename_data));
3240
3241 rename_data->oldpath = strdup(oldpath);
3242 if (rename_data->oldpath == NULL) {
3243 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3244 free_nfs_rename_data(rename_data);
3245 return -1;
3246 }
3247 ptr = strrchr(rename_data->oldpath, '/');
3248 if (ptr == NULL) {
3249 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3250 free_nfs_rename_data(rename_data);
3251 return -1;
3252 }
3253 *ptr = 0;
3254 ptr++;
3255 rename_data->oldobject = ptr;
3256
3257
3258 rename_data->newpath = strdup(newpath);
3259 if (rename_data->newpath == NULL) {
3260 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3261 free_nfs_rename_data(rename_data);
3262 return -1;
3263 }
3264 ptr = strrchr(rename_data->newpath, '/');
3265 if (ptr == NULL) {
3266 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3267 free_nfs_rename_data(rename_data);
3268 return -1;
3269 }
3270 *ptr = 0;
3271 ptr++;
3272 rename_data->newobject = ptr;
3273
3274
3275 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
3276 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3277 return -1;
3278 }
3279
3280 return 0;
3281 }
3282
3283
3284 /*
3285 * Async link()
3286 */
3287 struct nfs_link_data {
3288 char *oldpath;
3289 struct nfs_fh3 oldfh;
3290 char *newpath;
3291 char *newobject;
3292 struct nfs_fh3 newdir;
3293 };
3294
3295 static void free_nfs_link_data(void *mem)
3296 {
3297 struct nfs_link_data *data = mem;
3298
3299 if (data->oldpath != NULL) {
3300 free(data->oldpath);
3301 }
3302 if (data->oldfh.data.data_val != NULL) {
3303 free(data->oldfh.data.data_val);
3304 }
3305 if (data->newpath != NULL) {
3306 free(data->newpath);
3307 }
3308 if (data->newdir.data.data_val != NULL) {
3309 free(data->newdir.data.data_val);
3310 }
3311 free(data);
3312 }
3313
3314 static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3315 {
3316 LINK3res *res;
3317 struct nfs_cb_data *data = private_data;
3318 struct nfs_context *nfs = data->nfs;
3319 struct nfs_link_data *link_data = data->continue_data;
3320
3321 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3322
3323 if (status == RPC_STATUS_ERROR) {
3324 data->cb(-EFAULT, nfs, command_data, data->private_data);
3325 free_nfs_cb_data(data);
3326 return;
3327 }
3328 if (status == RPC_STATUS_CANCEL) {
3329 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3330 free_nfs_cb_data(data);
3331 return;
3332 }
3333
3334 res = command_data;
3335 if (res->status != NFS3_OK) {
3336 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));
3337 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3338 free_nfs_cb_data(data);
3339 return;
3340 }
3341
3342 data->cb(0, nfs, NULL, data->private_data);
3343 free_nfs_cb_data(data);
3344 }
3345
3346 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3347 {
3348 struct nfs_link_data *link_data = data->continue_data;
3349
3350 /* steal the filehandle */
3351 link_data->newdir.data.data_len = data->fh.data.data_len;
3352 link_data->newdir.data.data_val = data->fh.data.data_val;
3353 data->fh.data.data_val = NULL;
3354
3355 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
3356 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
3357 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3358 free_nfs_cb_data(data);
3359 return -1;
3360 }
3361 return 0;
3362 }
3363
3364
3365 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3366 {
3367 struct nfs_link_data *link_data = data->continue_data;
3368
3369 /* steal the filehandle */
3370 link_data->oldfh.data.data_len = data->fh.data.data_len;
3371 link_data->oldfh.data.data_val = data->fh.data.data_val;
3372 data->fh.data.data_val = NULL;
3373
3374 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) {
3375 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
3376 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3377 free_nfs_cb_data(data);
3378 return -1;
3379 }
3380 data->continue_data = NULL;
3381 free_nfs_cb_data(data);
3382
3383 return 0;
3384 }
3385
3386
3387 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3388 {
3389 char *ptr;
3390 struct nfs_link_data *link_data;
3391
3392 link_data = malloc(sizeof(struct nfs_link_data));
3393 if (link_data == NULL) {
3394 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
3395 return -1;
3396 }
3397 memset(link_data, 0, sizeof(struct nfs_link_data));
3398
3399 link_data->oldpath = strdup(oldpath);
3400 if (link_data->oldpath == NULL) {
3401 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3402 free_nfs_link_data(link_data);
3403 return -1;
3404 }
3405
3406 link_data->newpath = strdup(newpath);
3407 if (link_data->newpath == NULL) {
3408 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3409 free_nfs_link_data(link_data);
3410 return -1;
3411 }
3412 ptr = strrchr(link_data->newpath, '/');
3413 if (ptr == NULL) {
3414 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3415 free_nfs_link_data(link_data);
3416 return -1;
3417 }
3418 *ptr = 0;
3419 ptr++;
3420 link_data->newobject = ptr;
3421
3422
3423 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
3424 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3425 return -1;
3426 }
3427
3428 return 0;
3429 }
3430
3431
3432 //qqq replace later with lseek()
3433 uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
3434 {
3435 return nfsfh->offset;
3436 }
3437
3438
3439
3440 /*
3441 * Get the maximum supported READ3 size by the server
3442 */
3443 uint64_t nfs_get_readmax(struct nfs_context *nfs)
3444 {
3445 return nfs->readmax;
3446 }
3447
3448 /*
3449 * Get the maximum supported WRITE3 size by the server
3450 */
3451 uint64_t nfs_get_writemax(struct nfs_context *nfs)
3452 {
3453 /* Some ZDR libraries can not marshall PDUs bigger than this */
3454 if (nfs->writemax < 32768) {
3455 return nfs->writemax;
3456 }
3457 return 32768;
3458 }
3459
3460 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
3461 {
3462 va_list ap;
3463 char *str = NULL;
3464
3465 va_start(ap, error_string);
3466 str = malloc(1024);
3467 vsnprintf(str, 1024, error_string, ap);
3468 if (nfs->rpc->error_string != NULL) {
3469 free(nfs->rpc->error_string);
3470 }
3471 nfs->rpc->error_string = str;
3472 va_end(ap);
3473 }
3474
3475
3476
3477 struct mount_cb_data {
3478 rpc_cb cb;
3479 void *private_data;
3480 char *server;
3481 };
3482
3483 static void free_mount_cb_data(struct mount_cb_data *data)
3484 {
3485 if (data->server != NULL) {
3486 free(data->server);
3487 data->server = NULL;
3488 }
3489
3490 free(data);
3491 }
3492
3493 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3494 {
3495 struct mount_cb_data *data = private_data;
3496
3497 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3498
3499 if (status == RPC_STATUS_ERROR) {
3500 data->cb(rpc, -EFAULT, command_data, data->private_data);
3501 free_mount_cb_data(data);
3502 return;
3503 }
3504 if (status == RPC_STATUS_CANCEL) {
3505 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3506 free_mount_cb_data(data);
3507 return;
3508 }
3509
3510 data->cb(rpc, 0, command_data, data->private_data);
3511 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
3512 rpc_set_error(rpc, "Failed to disconnect\n");
3513 }
3514 free_mount_cb_data(data);
3515 }
3516
3517 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3518 {
3519 struct mount_cb_data *data = private_data;
3520
3521 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3522
3523 /* Dont want any more callbacks even if the socket is closed */
3524 rpc->connect_cb = NULL;
3525
3526 if (status == RPC_STATUS_ERROR) {
3527 data->cb(rpc, -EFAULT, command_data, data->private_data);
3528 free_mount_cb_data(data);
3529 return;
3530 }
3531 if (status == RPC_STATUS_CANCEL) {
3532 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3533 free_mount_cb_data(data);
3534 return;
3535 }
3536
3537 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
3538 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3539 free_mount_cb_data(data);
3540 return;
3541 }
3542 }
3543
3544 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3545 {
3546 struct mount_cb_data *data = private_data;
3547 uint32_t mount_port;
3548
3549 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3550
3551 if (status == RPC_STATUS_ERROR) {
3552 data->cb(rpc, -EFAULT, command_data, data->private_data);
3553 free_mount_cb_data(data);
3554 return;
3555 }
3556 if (status == RPC_STATUS_CANCEL) {
3557 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3558 free_mount_cb_data(data);
3559 return;
3560 }
3561
3562 mount_port = *(uint32_t *)command_data;
3563 if (mount_port == 0) {
3564 rpc_set_error(rpc, "RPC error. Mount program is not available");
3565 data->cb(rpc, -ENOENT, command_data, data->private_data);
3566 free_mount_cb_data(data);
3567 return;
3568 }
3569
3570 rpc_disconnect(rpc, "normal disconnect");
3571 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
3572 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3573 free_mount_cb_data(data);
3574 return;
3575 }
3576 }
3577
3578 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3579 {
3580 struct mount_cb_data *data = private_data;
3581
3582 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3583
3584 if (status == RPC_STATUS_ERROR) {
3585 data->cb(rpc, -EFAULT, command_data, data->private_data);
3586 free_mount_cb_data(data);
3587 return;
3588 }
3589 if (status == RPC_STATUS_CANCEL) {
3590 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3591 free_mount_cb_data(data);
3592 return;
3593 }
3594
3595 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
3596 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3597 free_mount_cb_data(data);
3598 return;
3599 }
3600 }
3601
3602 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3603 {
3604 struct mount_cb_data *data = private_data;
3605
3606 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3607
3608 /* Dont want any more callbacks even if the socket is closed */
3609 rpc->connect_cb = NULL;
3610
3611 if (status == RPC_STATUS_ERROR) {
3612 data->cb(rpc, -EFAULT, command_data, data->private_data);
3613 free_mount_cb_data(data);
3614 return;
3615 }
3616 if (status == RPC_STATUS_CANCEL) {
3617 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3618 free_mount_cb_data(data);
3619 return;
3620 }
3621
3622 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
3623 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3624 free_mount_cb_data(data);
3625 return;
3626 }
3627 }
3628
3629 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
3630 {
3631 struct mount_cb_data *data;
3632
3633 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3634
3635 data = malloc(sizeof(struct mount_cb_data));
3636 if (data == NULL) {
3637 return -1;
3638 }
3639 memset(data, 0, sizeof(struct mount_cb_data));
3640 data->cb = cb;
3641 data->private_data = private_data;
3642 data->server = strdup(server);
3643 if (data->server == NULL) {
3644 free_mount_cb_data(data);
3645 return -1;
3646 }
3647 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
3648 free_mount_cb_data(data);
3649 return -1;
3650 }
3651
3652 return 0;
3653 }
3654
3655 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
3656 {
3657 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
3658 return nfs->rpc;
3659 }
3660
3661 const char *nfs_get_server(struct nfs_context *nfs) {
3662 return nfs->server;
3663 }
3664
3665 const char *nfs_get_export(struct nfs_context *nfs) {
3666 return nfs->export;
3667 }
3668
3669 const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
3670 return &nfs->rootfh;
3671 }
3672
3673 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
3674 return &nfsfh->fh;
3675 }
libnfs Piment Noir Debian package repository