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[deb_libnfs.git] / lib / libnfs.c
1 /*
2 Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17 /*
18 * High level api to nfs filesystems
19 */
20 #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 static struct nfs_url *nfs_parse_url(struct nfs_context *nfs, char *url, int dir, int incomplete)
177 {
178 struct nfs_url *urls;
179 char *strp, *flagsp, *strp2;
180
181 if (strncmp(url, "nfs://", 6)) {
182 rpc_set_error(nfs->rpc, "Invalid URL specified");
183 return NULL;
184 }
185
186 urls = malloc(sizeof(struct nfs_url));
187 if (urls == NULL) {
188 rpc_set_error(nfs->rpc, "Out of memory");
189 return NULL;
190 }
191
192 urls->server = strdup(url + 6);
193 if (urls->server == NULL) {
194 nfs_destroy_url(urls);
195 rpc_set_error(nfs->rpc, "Out of memory");
196 return NULL;
197 }
198
199 if (urls->server[0] == '/' || urls->server[0] == '\0' ||
200 urls->server[0] == '?') {
201 if (incomplete) {
202 flagsp = strchr(urls->server, '?');
203 goto flags;
204 }
205 nfs_destroy_url(urls);
206 rpc_set_error(nfs->rpc, "Invalid server string");
207 return NULL;
208 }
209
210 strp = strchr(urls->server, '/');
211 if (strp == NULL) {
212 if (incomplete) {
213 flagsp = strchr(urls->server, '?');
214 goto flags;
215 }
216 nfs_destroy_url(urls);
217 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
218 return NULL;
219 }
220
221 urls->path = strdup(strp);
222 if (urls->path == NULL) {
223 nfs_destroy_url(urls);
224 rpc_set_error(nfs->rpc, "Out of memory");
225 return NULL;
226 }
227 *strp = 0;
228
229 if (dir) {
230 flagsp = strchr(urls->path, '?');
231 goto flags;
232 }
233
234 strp = strrchr(urls->path, '/');
235 if (strp == NULL) {
236 if (incomplete) {
237 flagsp = strchr(urls->path, '?');
238 goto flags;
239 }
240 nfs_destroy_url(urls);
241 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
242 return NULL;
243 }
244 urls->file = strdup(strp);
245 if (urls->path == NULL) {
246 nfs_destroy_url(urls);
247 rpc_set_error(nfs->rpc, "Out of memory");
248 return NULL;
249 }
250 *strp = 0;
251 flagsp = strchr(urls->file, '?');
252
253 flags:
254 if (flagsp) {
255 *flagsp = 0;
256 }
257
258 if (urls->file && !strlen(urls->file)) {
259 free(urls->file);
260 urls->file = NULL;
261 if (!incomplete) {
262 nfs_destroy_url(urls);
263 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
264 return NULL;
265 }
266 }
267
268 if (urls->server && strlen(urls->server) <= 1) {
269 free(urls->server);
270 urls->server = NULL;
271 }
272
273 while (flagsp != NULL && *(flagsp+1) != 0) {
274 strp = flagsp + 1;
275 flagsp = strchr(strp, '&');
276 if (flagsp) {
277 *flagsp = 0;
278 }
279 strp2 = strchr(strp, '=');
280 if (strp2) {
281 *strp2 = 0;
282 strp2++;
283 }
284 }
285
286 return urls;
287 }
288
289 struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url)
290 {
291 return nfs_parse_url(nfs, url, 0, 0);
292 }
293
294 struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url)
295 {
296 return nfs_parse_url(nfs, url, 1, 0);
297 }
298
299 struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url)
300 {
301 return nfs_parse_url(nfs, url, 0, 1);
302 }
303
304
305 void nfs_destroy_url(struct nfs_url *url)
306 {
307 if (url) {
308 free(url->server);
309 free(url->path);
310 free(url->file);
311 }
312 free(url);
313 }
314
315 struct nfs_context *nfs_init_context(void)
316 {
317 struct nfs_context *nfs;
318
319 nfs = malloc(sizeof(struct nfs_context));
320 if (nfs == NULL) {
321 return NULL;
322 }
323 nfs->rpc = rpc_init_context();
324 if (nfs->rpc == NULL) {
325 free(nfs);
326 return NULL;
327 }
328
329 nfs->server = NULL;
330 nfs->export = NULL;
331
332 nfs->rootfh.data.data_len = 0;
333 nfs->rootfh.data.data_val = NULL;
334
335 return nfs;
336 }
337
338 void nfs_destroy_context(struct nfs_context *nfs)
339 {
340 rpc_destroy_context(nfs->rpc);
341 nfs->rpc = NULL;
342
343 if (nfs->server) {
344 free(nfs->server);
345 nfs->server = NULL;
346 }
347
348 if (nfs->export) {
349 free(nfs->export);
350 nfs->export = NULL;
351 }
352
353 if (nfs->rootfh.data.data_val != NULL) {
354 free(nfs->rootfh.data.data_val);
355 nfs->rootfh.data.data_val = NULL;
356 }
357
358 free(nfs);
359 }
360
361 struct rpc_cb_data {
362 char *server;
363 uint32_t program;
364 uint32_t version;
365
366 rpc_cb cb;
367 void *private_data;
368 };
369
370 void free_rpc_cb_data(struct rpc_cb_data *data)
371 {
372 free(data->server);
373 data->server = NULL;
374 free(data);
375 }
376
377 static void rpc_connect_program_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
378 {
379 struct rpc_cb_data *data = private_data;
380
381 assert(rpc->magic == RPC_CONTEXT_MAGIC);
382
383 /* Dont want any more callbacks even if the socket is closed */
384 rpc->connect_cb = NULL;
385
386 if (status == RPC_STATUS_ERROR) {
387 data->cb(rpc, status, command_data, data->private_data);
388 free_rpc_cb_data(data);
389 return;
390 }
391 if (status == RPC_STATUS_CANCEL) {
392 data->cb(rpc, status, "Command was cancelled", data->private_data);
393 free_rpc_cb_data(data);
394 return;
395 }
396
397 data->cb(rpc, status, NULL, data->private_data);
398 free_rpc_cb_data(data);
399 }
400
401 static void rpc_connect_program_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
402 {
403 struct rpc_cb_data *data = private_data;
404 uint32_t rpc_port;
405
406 assert(rpc->magic == RPC_CONTEXT_MAGIC);
407
408 if (status == RPC_STATUS_ERROR) {
409 data->cb(rpc, status, command_data, data->private_data);
410 free_rpc_cb_data(data);
411 return;
412 }
413 if (status == RPC_STATUS_CANCEL) {
414 data->cb(rpc, status, "Command was cancelled", data->private_data);
415 free_rpc_cb_data(data);
416 return;
417 }
418
419 rpc_port = *(uint32_t *)command_data;
420 if (rpc_port == 0) {
421 rpc_set_error(rpc, "RPC error. Program is not available on %s", data->server);
422 data->cb(rpc, RPC_STATUS_ERROR, rpc_get_error(rpc), data->private_data);
423 free_rpc_cb_data(data);
424 return;
425 }
426
427 rpc_disconnect(rpc, "normal disconnect");
428 if (rpc_connect_async(rpc, data->server, rpc_port, rpc_connect_program_4_cb, data) != 0) {
429 data->cb(rpc, status, command_data, data->private_data);
430 free_rpc_cb_data(data);
431 return;
432 }
433 }
434
435 static void rpc_connect_program_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
436 {
437 struct rpc_cb_data *data = private_data;
438
439 assert(rpc->magic == RPC_CONTEXT_MAGIC);
440
441 if (status == RPC_STATUS_ERROR) {
442 data->cb(rpc, status, command_data, data->private_data);
443 free_rpc_cb_data(data);
444 return;
445 }
446 if (status == RPC_STATUS_CANCEL) {
447 data->cb(rpc, status, "Command was cancelled", data->private_data);
448 free_rpc_cb_data(data);
449 return;
450 }
451
452 if (rpc_pmap_getport_async(rpc, data->program, data->version, IPPROTO_TCP, rpc_connect_program_3_cb, private_data) != 0) {
453 data->cb(rpc, status, command_data, data->private_data);
454 free_rpc_cb_data(data);
455 return;
456 }
457 }
458
459 static void rpc_connect_program_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
460 {
461 struct rpc_cb_data *data = private_data;
462
463 assert(rpc->magic == RPC_CONTEXT_MAGIC);
464
465 /* Dont want any more callbacks even if the socket is closed */
466 rpc->connect_cb = NULL;
467
468 if (status == RPC_STATUS_ERROR) {
469 data->cb(rpc, status, command_data, data->private_data);
470 free_rpc_cb_data(data);
471 return;
472 }
473 if (status == RPC_STATUS_CANCEL) {
474 data->cb(rpc, status, "Command was cancelled", data->private_data);
475 free_rpc_cb_data(data);
476 return;
477 }
478
479 if (rpc_pmap_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
480 data->cb(rpc, status, command_data, data->private_data);
481 free_rpc_cb_data(data);
482 return;
483 }
484 }
485
486 int rpc_connect_program_async(struct rpc_context *rpc, char *server, int program, int version, rpc_cb cb, void *private_data)
487 {
488 struct rpc_cb_data *data;
489
490 data = malloc(sizeof(struct rpc_cb_data));
491 if (data == NULL) {
492 return -1;
493 }
494 memset(data, 0, sizeof(struct rpc_cb_data));
495 data->server = strdup(server);
496 data->program = program;
497 data->version = version;
498
499 data->cb = cb;
500 data->private_data = private_data;
501
502 if (rpc_connect_async(rpc, server, 111, rpc_connect_program_1_cb, data) != 0) {
503 rpc_set_error(rpc, "Failed to start connection");
504 free_rpc_cb_data(data);
505 return -1;
506 }
507 return 0;
508 }
509
510 void free_nfs_cb_data(struct nfs_cb_data *data)
511 {
512 if (data->saved_path != NULL) {
513 free(data->saved_path);
514 data->saved_path = NULL;
515 }
516
517 if (data->continue_data != NULL) {
518 data->free_continue_data(data->continue_data);
519 data->continue_data = NULL;
520 }
521
522 if (data->fh.data.data_val != NULL) {
523 free(data->fh.data.data_val);
524 data->fh.data.data_val = NULL;
525 }
526
527 if (data->buffer != NULL) {
528 free(data->buffer);
529 data->buffer = NULL;
530 }
531
532 free(data);
533 }
534
535
536
537
538
539 static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
540 {
541 struct nfs_cb_data *data = private_data;
542 struct nfs_context *nfs = data->nfs;
543
544 assert(rpc->magic == RPC_CONTEXT_MAGIC);
545
546 if (status == RPC_STATUS_ERROR) {
547 data->cb(-EFAULT, nfs, command_data, data->private_data);
548 free_nfs_cb_data(data);
549 return;
550 }
551 if (status == RPC_STATUS_CANCEL) {
552 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
553 free_nfs_cb_data(data);
554 return;
555 }
556
557 data->cb(0, nfs, NULL, data->private_data);
558 free_nfs_cb_data(data);
559 }
560
561 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
562 {
563 struct nfs_cb_data *data = private_data;
564 struct nfs_context *nfs = data->nfs;
565 FSINFO3res *res = command_data;
566
567 assert(rpc->magic == RPC_CONTEXT_MAGIC);
568
569 if (status == RPC_STATUS_ERROR) {
570 data->cb(-EFAULT, nfs, command_data, data->private_data);
571 free_nfs_cb_data(data);
572 return;
573 }
574 if (status == RPC_STATUS_CANCEL) {
575 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
576 free_nfs_cb_data(data);
577 return;
578 }
579
580 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
581 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
582
583 if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
584 data->cb(-ENOMEM, nfs, command_data, data->private_data);
585 free_nfs_cb_data(data);
586 return;
587 }
588 }
589
590 static void nfs_mount_8_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
595 assert(rpc->magic == RPC_CONTEXT_MAGIC);
596
597 if (status == RPC_STATUS_ERROR) {
598 data->cb(-EFAULT, nfs, command_data, data->private_data);
599 free_nfs_cb_data(data);
600 return;
601 }
602 if (status == RPC_STATUS_CANCEL) {
603 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
604 free_nfs_cb_data(data);
605 return;
606 }
607
608 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
609 data->cb(-ENOMEM, nfs, command_data, data->private_data);
610 free_nfs_cb_data(data);
611 return;
612 }
613 }
614
615
616 static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
617 {
618 struct nfs_cb_data *data = private_data;
619 struct nfs_context *nfs = data->nfs;
620
621 assert(rpc->magic == RPC_CONTEXT_MAGIC);
622
623 /* Dont want any more callbacks even if the socket is closed */
624 rpc->connect_cb = NULL;
625
626 if (status == RPC_STATUS_ERROR) {
627 data->cb(-EFAULT, nfs, command_data, data->private_data);
628 free_nfs_cb_data(data);
629 return;
630 }
631 if (status == RPC_STATUS_CANCEL) {
632 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
633 free_nfs_cb_data(data);
634 return;
635 }
636
637 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
638 data->cb(-ENOMEM, nfs, command_data, data->private_data);
639 free_nfs_cb_data(data);
640 return;
641 }
642 }
643
644
645 static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
646 {
647 struct nfs_cb_data *data = private_data;
648 struct nfs_context *nfs = data->nfs;
649 mountres3 *res;
650
651 assert(rpc->magic == RPC_CONTEXT_MAGIC);
652
653 if (status == RPC_STATUS_ERROR) {
654 data->cb(-EFAULT, nfs, command_data, data->private_data);
655 free_nfs_cb_data(data);
656 return;
657 }
658 if (status == RPC_STATUS_CANCEL) {
659 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
660 free_nfs_cb_data(data);
661 return;
662 }
663
664 res = command_data;
665 if (res->fhs_status != MNT3_OK) {
666 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));
667 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
668 free_nfs_cb_data(data);
669 return;
670 }
671
672 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
673 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
674 if (nfs->rootfh.data.data_val == NULL) {
675 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
676 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
677 free_nfs_cb_data(data);
678 return;
679 }
680 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
681
682 rpc_disconnect(rpc, "normal disconnect");
683 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
684 data->cb(-ENOMEM, nfs, command_data, data->private_data);
685 free_nfs_cb_data(data);
686 return;
687 }
688 /* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
689 rpc_set_autoreconnect(rpc);
690 }
691
692
693 static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
694 {
695 struct nfs_cb_data *data = private_data;
696 struct nfs_context *nfs = data->nfs;
697
698 assert(rpc->magic == RPC_CONTEXT_MAGIC);
699
700 if (status == RPC_STATUS_ERROR) {
701 data->cb(-EFAULT, nfs, command_data, data->private_data);
702 free_nfs_cb_data(data);
703 return;
704 }
705 if (status == RPC_STATUS_CANCEL) {
706 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
707 free_nfs_cb_data(data);
708 return;
709 }
710
711 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
712 data->cb(-ENOMEM, nfs, command_data, data->private_data);
713 free_nfs_cb_data(data);
714 return;
715 }
716 }
717
718 static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
719 {
720 struct nfs_cb_data *data = private_data;
721 struct nfs_context *nfs = data->nfs;
722
723 assert(rpc->magic == RPC_CONTEXT_MAGIC);
724
725 /* Dont want any more callbacks even if the socket is closed */
726 rpc->connect_cb = NULL;
727
728 if (status == RPC_STATUS_ERROR) {
729 data->cb(-EFAULT, nfs, command_data, data->private_data);
730 free_nfs_cb_data(data);
731 return;
732 }
733 if (status == RPC_STATUS_CANCEL) {
734 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
735 free_nfs_cb_data(data);
736 return;
737 }
738
739 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
740 data->cb(-ENOMEM, nfs, command_data, data->private_data);
741 free_nfs_cb_data(data);
742 return;
743 }
744 }
745
746 static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
747 {
748 struct nfs_cb_data *data = private_data;
749 struct nfs_context *nfs = data->nfs;
750 uint32_t mount_port;
751
752 assert(rpc->magic == RPC_CONTEXT_MAGIC);
753
754 if (status == RPC_STATUS_ERROR) {
755 data->cb(-EFAULT, nfs, command_data, data->private_data);
756 free_nfs_cb_data(data);
757 return;
758 }
759 if (status == RPC_STATUS_CANCEL) {
760 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
761 free_nfs_cb_data(data);
762 return;
763 }
764
765 mount_port = *(uint32_t *)command_data;
766 if (mount_port == 0) {
767 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
768 data->cb(-ENOENT, nfs, command_data, data->private_data);
769 free_nfs_cb_data(data);
770 return;
771 }
772
773 rpc_disconnect(rpc, "normal disconnect");
774 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
775 data->cb(-ENOMEM, nfs, command_data, data->private_data);
776 free_nfs_cb_data(data);
777 return;
778 }
779 }
780
781
782 static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
783 {
784 struct nfs_cb_data *data = private_data;
785 struct nfs_context *nfs = data->nfs;
786
787 assert(rpc->magic == RPC_CONTEXT_MAGIC);
788
789 if (status == RPC_STATUS_ERROR) {
790 data->cb(-EFAULT, nfs, command_data, data->private_data);
791 free_nfs_cb_data(data);
792 return;
793 }
794 if (status == RPC_STATUS_CANCEL) {
795 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
796 free_nfs_cb_data(data);
797 return;
798 }
799
800 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, nfs_mount_3_cb, private_data) != 0) {
801 data->cb(-ENOMEM, nfs, command_data, data->private_data);
802 free_nfs_cb_data(data);
803 return;
804 }
805 }
806
807 static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
808 {
809 struct nfs_cb_data *data = private_data;
810 struct nfs_context *nfs = data->nfs;
811
812 assert(rpc->magic == RPC_CONTEXT_MAGIC);
813
814 /* Dont want any more callbacks even if the socket is closed */
815 rpc->connect_cb = NULL;
816
817 if (status == RPC_STATUS_ERROR) {
818 data->cb(-EFAULT, nfs, command_data, data->private_data);
819 free_nfs_cb_data(data);
820 return;
821 }
822 if (status == RPC_STATUS_CANCEL) {
823 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
824 free_nfs_cb_data(data);
825 return;
826 }
827
828 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
829 data->cb(-ENOMEM, nfs, command_data, data->private_data);
830 free_nfs_cb_data(data);
831 return;
832 }
833 }
834
835 /*
836 * Async call for mounting an nfs share and geting the root filehandle
837 */
838 int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
839 {
840 struct nfs_cb_data *data;
841 char *new_server, *new_export;
842
843 data = malloc(sizeof(struct nfs_cb_data));
844 if (data == NULL) {
845 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
846 return -1;
847 }
848 memset(data, 0, sizeof(struct nfs_cb_data));
849 new_server = strdup(server);
850 new_export = strdup(export);
851 if (nfs->server != NULL) {
852 free(nfs->server);
853 }
854 nfs->server = new_server;
855 if (nfs->export != NULL) {
856 free(nfs->export);
857 }
858 nfs->export = new_export;
859 data->nfs = nfs;
860 data->cb = cb;
861 data->private_data = private_data;
862
863 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
864 rpc_set_error(nfs->rpc, "Failed to start connection");
865 free_nfs_cb_data(data);
866 return -1;
867 }
868
869 return 0;
870 }
871
872
873
874 /*
875 * Functions to first look up a path, component by component, and then finally call a specific function once
876 * the filehandle for the final component is found.
877 */
878 static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
879 {
880 struct nfs_cb_data *data = private_data;
881 struct nfs_context *nfs = data->nfs;
882 LOOKUP3res *res;
883
884 assert(rpc->magic == RPC_CONTEXT_MAGIC);
885
886 if (status == RPC_STATUS_ERROR) {
887 data->cb(-EFAULT, nfs, command_data, data->private_data);
888 free_nfs_cb_data(data);
889 return;
890 }
891 if (status == RPC_STATUS_CANCEL) {
892 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
893 free_nfs_cb_data(data);
894 return;
895 }
896
897 res = command_data;
898 if (res->status != NFS3_OK) {
899 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));
900 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
901 free_nfs_cb_data(data);
902 return;
903 }
904
905 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
906 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
907 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
908 free_nfs_cb_data(data);
909 return;
910 }
911 }
912
913 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
914 {
915 char *path, *str;
916
917 while (*data->path == '/') {
918 data->path++;
919 }
920
921 path = data->path;
922 str = strchr(path, '/');
923 if (str != NULL) {
924 *str = 0;
925 data->path = str+1;
926 } else {
927 while (*data->path != 0) {
928 data->path++;
929 }
930 }
931
932 if (*path == 0) {
933 data->fh.data.data_len = fh->data.data_len;
934 data->fh.data.data_val = malloc(data->fh.data.data_len);
935 if (data->fh.data.data_val == NULL) {
936 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
937 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
938 free_nfs_cb_data(data);
939 return -1;
940 }
941 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
942 data->continue_cb(nfs, data);
943 return 0;
944 }
945
946 if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
947 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
948 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
949 free_nfs_cb_data(data);
950 return -1;
951 }
952 return 0;
953 }
954
955 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)
956 {
957 struct nfs_cb_data *data;
958
959 if (path[0] != 0 && path[0] != '/') {
960 rpc_set_error(nfs->rpc, "Pathname is not absolute %s", path);
961 return -1;
962 }
963
964 data = malloc(sizeof(struct nfs_cb_data));
965 if (data == NULL) {
966 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
967 return -1;
968 }
969 memset(data, 0, sizeof(struct nfs_cb_data));
970 data->nfs = nfs;
971 data->cb = cb;
972 data->continue_cb = continue_cb;
973 data->continue_data = continue_data;
974 data->free_continue_data = free_continue_data;
975 data->continue_int = continue_int;
976 data->private_data = private_data;
977 data->saved_path = strdup(path);
978 if (data->saved_path == NULL) {
979 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
980 free_nfs_cb_data(data);
981 return -1;
982 }
983 data->path = data->saved_path;
984
985 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
986 /* return 0 here since the callback will be invoked if there is a failure */
987 return 0;
988 }
989 return 0;
990 }
991
992
993
994
995
996 /*
997 * Async stat()
998 */
999 static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1000 {
1001 GETATTR3res *res;
1002 struct nfs_cb_data *data = private_data;
1003 struct nfs_context *nfs = data->nfs;
1004 struct stat st;
1005
1006 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1007
1008 if (status == RPC_STATUS_ERROR) {
1009 data->cb(-EFAULT, nfs, command_data, data->private_data);
1010 free_nfs_cb_data(data);
1011 return;
1012 }
1013 if (status == RPC_STATUS_CANCEL) {
1014 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1015 free_nfs_cb_data(data);
1016 return;
1017 }
1018
1019 res = command_data;
1020 if (res->status != NFS3_OK) {
1021 rpc_set_error(nfs->rpc, "NFS: GETATTR of %s failed with %s(%d)", data->saved_path, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1022 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1023 free_nfs_cb_data(data);
1024 return;
1025 }
1026
1027 st.st_dev = -1;
1028 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1029 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
1030 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
1031 st.st_mode |= S_IFDIR ;
1032 }
1033 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
1034 st.st_mode |= S_IFREG ;
1035 }
1036 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1037 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1038 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1039 st.st_rdev = 0;
1040 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
1041 #ifndef WIN32
1042 st.st_blksize = 4096;
1043 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
1044 #endif//WIN32
1045 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1046 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1047 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1048
1049 data->cb(0, nfs, &st, data->private_data);
1050 free_nfs_cb_data(data);
1051 }
1052
1053 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1054 {
1055 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
1056 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1057 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1058 free_nfs_cb_data(data);
1059 return -1;
1060 }
1061 return 0;
1062 }
1063
1064 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1065 {
1066 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
1067 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1068 return -1;
1069 }
1070
1071 return 0;
1072 }
1073
1074
1075
1076
1077
1078 /*
1079 * Async open()
1080 */
1081 static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1082 {
1083 ACCESS3res *res;
1084 struct nfs_cb_data *data = private_data;
1085 struct nfs_context *nfs = data->nfs;
1086 struct nfsfh *nfsfh;
1087 unsigned int nfsmode = 0;
1088
1089 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1090
1091 if (status == RPC_STATUS_ERROR) {
1092 data->cb(-EFAULT, nfs, command_data, data->private_data);
1093 free_nfs_cb_data(data);
1094 return;
1095 }
1096 if (status == RPC_STATUS_CANCEL) {
1097 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1098 free_nfs_cb_data(data);
1099 return;
1100 }
1101
1102 res = command_data;
1103 if (res->status != NFS3_OK) {
1104 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));
1105 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1106 free_nfs_cb_data(data);
1107 return;
1108 }
1109
1110 if (data->continue_int & O_WRONLY) {
1111 nfsmode |= ACCESS3_MODIFY;
1112 }
1113 if (data->continue_int & O_RDWR) {
1114 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1115 }
1116 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1117 nfsmode |= ACCESS3_READ;
1118 }
1119
1120
1121 if (res->ACCESS3res_u.resok.access != nfsmode) {
1122 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
1123 nfsmode&ACCESS3_READ?'r':'-',
1124 nfsmode&ACCESS3_MODIFY?'w':'-',
1125 nfsmode&ACCESS3_EXECUTE?'x':'-',
1126 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
1127 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
1128 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
1129 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
1130 free_nfs_cb_data(data);
1131 return;
1132 }
1133
1134 nfsfh = malloc(sizeof(struct nfsfh));
1135 if (nfsfh == NULL) {
1136 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1137 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1138 free_nfs_cb_data(data);
1139 return;
1140 }
1141 memset(nfsfh, 0, sizeof(struct nfsfh));
1142
1143 if (data->continue_int & O_SYNC) {
1144 nfsfh->is_sync = 1;
1145 }
1146
1147 /* steal the filehandle */
1148 nfsfh->fh.data.data_len = data->fh.data.data_len;
1149 nfsfh->fh.data.data_val = data->fh.data.data_val;
1150 data->fh.data.data_val = NULL;
1151
1152 data->cb(0, nfs, nfsfh, data->private_data);
1153 free_nfs_cb_data(data);
1154 }
1155
1156 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1157 {
1158 int nfsmode = 0;
1159
1160 if (data->continue_int & O_WRONLY) {
1161 nfsmode |= ACCESS3_MODIFY;
1162 }
1163 if (data->continue_int & O_RDWR) {
1164 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1165 }
1166 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1167 nfsmode |= ACCESS3_READ;
1168 }
1169
1170 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
1171 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
1172 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1173 free_nfs_cb_data(data);
1174 return -1;
1175 }
1176 return 0;
1177 }
1178
1179 int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1180 {
1181 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
1182 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1183 return -1;
1184 }
1185
1186 return 0;
1187 }
1188
1189
1190
1191
1192
1193 /*
1194 * Async pread()
1195 */
1196 static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1197 {
1198 struct nfs_cb_data *data = private_data;
1199 struct nfs_context *nfs = data->nfs;
1200 READ3res *res;
1201
1202 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1203
1204 if (status == RPC_STATUS_ERROR) {
1205 data->cb(-EFAULT, nfs, command_data, data->private_data);
1206 free_nfs_cb_data(data);
1207 return;
1208 }
1209 if (status == RPC_STATUS_CANCEL) {
1210 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1211 free_nfs_cb_data(data);
1212 return;
1213 }
1214
1215 res = command_data;
1216 if (res->status != NFS3_OK) {
1217 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1218 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1219 free_nfs_cb_data(data);
1220 return;
1221 }
1222
1223 data->nfsfh->offset += res->READ3res_u.resok.count;
1224 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
1225 free_nfs_cb_data(data);
1226 }
1227
1228 static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1229 {
1230 struct nfs_mcb_data *mdata = private_data;
1231 struct nfs_cb_data *data = mdata->data;
1232 struct nfs_context *nfs = data->nfs;
1233 READ3res *res;
1234
1235 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1236
1237 data->num_calls--;
1238
1239 if (status == RPC_STATUS_ERROR) {
1240 /* flag the failure but do not invoke callback until we have received all responses */
1241 data->error = 1;
1242 }
1243 if (status == RPC_STATUS_CANCEL) {
1244 /* flag the cancellation but do not invoke callback until we have received all responses */
1245 data->cancel = 1;
1246 }
1247
1248 /* reassemble the data into the buffer */
1249 if (status == RPC_STATUS_SUCCESS) {
1250 res = command_data;
1251 if (res->status != NFS3_OK) {
1252 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1253 data->error = 1;
1254 } else {
1255 if (res->READ3res_u.resok.count > 0) {
1256 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
1257 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
1258 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
1259 }
1260 }
1261 }
1262 }
1263
1264 if (data->num_calls > 0) {
1265 /* still waiting for more replies */
1266 free(mdata);
1267 return;
1268 }
1269
1270 if (data->error != 0) {
1271 data->cb(-EFAULT, nfs, command_data, data->private_data);
1272 free_nfs_cb_data(data);
1273 free(mdata);
1274 return;
1275 }
1276 if (data->cancel != 0) {
1277 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1278 free_nfs_cb_data(data);
1279 free(mdata);
1280 return;
1281 }
1282
1283 data->nfsfh->offset = data->max_offset;
1284 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
1285
1286 free_nfs_cb_data(data);
1287 free(mdata);
1288 }
1289
1290 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
1291 {
1292 struct nfs_cb_data *data;
1293
1294 data = malloc(sizeof(struct nfs_cb_data));
1295 if (data == NULL) {
1296 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1297 return -1;
1298 }
1299 memset(data, 0, sizeof(struct nfs_cb_data));
1300 data->nfs = nfs;
1301 data->cb = cb;
1302 data->private_data = private_data;
1303 data->nfsfh = nfsfh;
1304
1305 nfsfh->offset = offset;
1306
1307 if (count <= nfs_get_readmax(nfs)) {
1308 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
1309 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1310 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1311 free_nfs_cb_data(data);
1312 return -1;
1313 }
1314 return 0;
1315 }
1316
1317 /* trying to read more than maximum server read size, we has to chop it up into smaller
1318 * reads and collect into a reassembly buffer.
1319 * we send all reads in parallel so that performance is still good.
1320 */
1321 data->max_offset = offset;
1322 data->start_offset = offset;
1323
1324 data->buffer = malloc(count);
1325 if (data->buffer == NULL) {
1326 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
1327 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1328 free_nfs_cb_data(data);
1329 return -1;
1330 }
1331
1332 while (count > 0) {
1333 uint64_t readcount = count;
1334 struct nfs_mcb_data *mdata;
1335
1336 if (readcount > nfs_get_readmax(nfs)) {
1337 readcount = nfs_get_readmax(nfs);
1338 }
1339
1340 mdata = malloc(sizeof(struct nfs_mcb_data));
1341 if (mdata == NULL) {
1342 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1343 return -1;
1344 }
1345 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1346 mdata->data = data;
1347 mdata->offset = offset;
1348 mdata->count = readcount;
1349 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
1350 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1351 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1352 free(mdata);
1353 return -1;
1354 }
1355
1356 count -= readcount;
1357 offset += readcount;
1358 data->num_calls++;
1359 }
1360
1361 return 0;
1362 }
1363
1364 /*
1365 * Async read()
1366 */
1367 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
1368 {
1369 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
1370 }
1371
1372
1373
1374 /*
1375 * Async pwrite()
1376 */
1377 static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1378 {
1379 struct nfs_cb_data *data = private_data;
1380 struct nfs_context *nfs = data->nfs;
1381 WRITE3res *res;
1382
1383 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1384
1385 if (status == RPC_STATUS_ERROR) {
1386 data->cb(-EFAULT, nfs, command_data, data->private_data);
1387 free_nfs_cb_data(data);
1388 return;
1389 }
1390 if (status == RPC_STATUS_CANCEL) {
1391 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1392 free_nfs_cb_data(data);
1393 return;
1394 }
1395
1396 res = command_data;
1397 if (res->status != NFS3_OK) {
1398 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1399 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1400 free_nfs_cb_data(data);
1401 return;
1402 }
1403
1404 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1405 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1406 free_nfs_cb_data(data);
1407 }
1408
1409 static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1410 {
1411 struct nfs_mcb_data *mdata = private_data;
1412 struct nfs_cb_data *data = mdata->data;
1413 struct nfs_context *nfs = data->nfs;
1414 WRITE3res *res;
1415
1416 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1417
1418 data->num_calls--;
1419
1420 if (status == RPC_STATUS_ERROR) {
1421 /* flag the failure but do not invoke callback until we have received all responses */
1422 data->error = 1;
1423 }
1424 if (status == RPC_STATUS_CANCEL) {
1425 /* flag the cancellation but do not invoke callback until we have received all responses */
1426 data->cancel = 1;
1427 }
1428
1429 if (status == RPC_STATUS_SUCCESS) {
1430 res = command_data;
1431 if (res->status != NFS3_OK) {
1432 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1433 data->error = 1;
1434 } else {
1435 if (res->WRITE3res_u.resok.count > 0) {
1436 if ((unsigned)data->max_offset < mdata->offset + res->WRITE3res_u.resok.count) {
1437 data->max_offset = mdata->offset + res->WRITE3res_u.resok.count;
1438 }
1439 }
1440 }
1441 }
1442
1443 if (data->num_calls > 0) {
1444 /* still waiting for more replies */
1445 free(mdata);
1446 return;
1447 }
1448
1449 if (data->error != 0) {
1450 data->cb(-EFAULT, nfs, command_data, data->private_data);
1451 free_nfs_cb_data(data);
1452 free(mdata);
1453 return;
1454 }
1455 if (data->cancel != 0) {
1456 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1457 free_nfs_cb_data(data);
1458 free(mdata);
1459 return;
1460 }
1461
1462 data->nfsfh->offset = data->max_offset;
1463 data->cb(data->max_offset - data->start_offset, nfs, NULL, data->private_data);
1464
1465 free_nfs_cb_data(data);
1466 free(mdata);
1467 }
1468
1469
1470 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)
1471 {
1472 struct nfs_cb_data *data;
1473
1474 data = malloc(sizeof(struct nfs_cb_data));
1475 if (data == NULL) {
1476 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1477 return -1;
1478 }
1479 memset(data, 0, sizeof(struct nfs_cb_data));
1480 data->nfs = nfs;
1481 data->cb = cb;
1482 data->private_data = private_data;
1483 data->nfsfh = nfsfh;
1484
1485 nfsfh->offset = offset;
1486
1487 if (count <= nfs_get_writemax(nfs)) {
1488 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
1489 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1490 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1491 free_nfs_cb_data(data);
1492 return -1;
1493 }
1494 return 0;
1495 }
1496
1497 /* trying to write more than maximum server write size, we has to chop it up into smaller
1498 * chunks.
1499 * we send all writes in parallel so that performance is still good.
1500 */
1501 data->max_offset = offset;
1502 data->start_offset = offset;
1503
1504 while (count > 0) {
1505 uint64_t writecount = count;
1506 struct nfs_mcb_data *mdata;
1507
1508 if (writecount > nfs_get_writemax(nfs)) {
1509 writecount = nfs_get_writemax(nfs);
1510 }
1511
1512 mdata = malloc(sizeof(struct nfs_mcb_data));
1513 if (mdata == NULL) {
1514 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1515 return -1;
1516 }
1517 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1518 mdata->data = data;
1519 mdata->offset = offset;
1520 mdata->count = writecount;
1521
1522 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) {
1523 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1524 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1525 free(mdata);
1526 return -1;
1527 }
1528
1529 count -= writecount;
1530 offset += writecount;
1531 data->num_calls++;
1532 }
1533
1534 return 0;
1535 }
1536
1537 /*
1538 * Async write()
1539 */
1540 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1541 {
1542 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1543 }
1544
1545
1546
1547
1548 /*
1549 * close
1550 */
1551
1552 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1553 {
1554 if (nfsfh->fh.data.data_val != NULL){
1555 free(nfsfh->fh.data.data_val);
1556 nfsfh->fh.data.data_val = NULL;
1557 }
1558 free(nfsfh);
1559
1560 cb(0, nfs, NULL, private_data);
1561 return 0;
1562 };
1563
1564
1565
1566
1567
1568 /*
1569 * Async fstat()
1570 */
1571 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1572 {
1573 struct nfs_cb_data *data;
1574
1575 data = malloc(sizeof(struct nfs_cb_data));
1576 if (data == NULL) {
1577 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1578 return -1;
1579 }
1580 memset(data, 0, sizeof(struct nfs_cb_data));
1581 data->nfs = nfs;
1582 data->cb = cb;
1583 data->private_data = private_data;
1584
1585 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
1586 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1587 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1588 free_nfs_cb_data(data);
1589 return -1;
1590 }
1591 return 0;
1592 }
1593
1594
1595
1596 /*
1597 * Async fsync()
1598 */
1599 static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1600 {
1601 struct nfs_cb_data *data = private_data;
1602 struct nfs_context *nfs = data->nfs;
1603 COMMIT3res *res;
1604
1605 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1606
1607 if (status == RPC_STATUS_ERROR) {
1608 data->cb(-EFAULT, nfs, command_data, data->private_data);
1609 free_nfs_cb_data(data);
1610 return;
1611 }
1612 if (status == RPC_STATUS_CANCEL) {
1613 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1614 free_nfs_cb_data(data);
1615 return;
1616 }
1617
1618 res = command_data;
1619 if (res->status != NFS3_OK) {
1620 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1621 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1622 free_nfs_cb_data(data);
1623 return;
1624 }
1625
1626 data->cb(0, nfs, NULL, data->private_data);
1627 free_nfs_cb_data(data);
1628 }
1629
1630 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1631 {
1632 struct nfs_cb_data *data;
1633
1634 data = malloc(sizeof(struct nfs_cb_data));
1635 if (data == NULL) {
1636 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1637 return -1;
1638 }
1639 memset(data, 0, sizeof(struct nfs_cb_data));
1640 data->nfs = nfs;
1641 data->cb = cb;
1642 data->private_data = private_data;
1643
1644 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1645 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1646 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1647 free_nfs_cb_data(data);
1648 return -1;
1649 }
1650 return 0;
1651 }
1652
1653
1654
1655
1656 /*
1657 * Async ftruncate()
1658 */
1659 static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1660 {
1661 struct nfs_cb_data *data = private_data;
1662 struct nfs_context *nfs = data->nfs;
1663 SETATTR3res *res;
1664
1665 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1666
1667 if (status == RPC_STATUS_ERROR) {
1668 data->cb(-EFAULT, nfs, command_data, data->private_data);
1669 free_nfs_cb_data(data);
1670 return;
1671 }
1672 if (status == RPC_STATUS_CANCEL) {
1673 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1674 free_nfs_cb_data(data);
1675 return;
1676 }
1677
1678 res = command_data;
1679 if (res->status != NFS3_OK) {
1680 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1681 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1682 free_nfs_cb_data(data);
1683 return;
1684 }
1685
1686 data->cb(0, nfs, NULL, data->private_data);
1687 free_nfs_cb_data(data);
1688 }
1689
1690 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
1691 {
1692 struct nfs_cb_data *data;
1693 SETATTR3args args;
1694
1695 data = malloc(sizeof(struct nfs_cb_data));
1696 if (data == NULL) {
1697 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1698 return -1;
1699 }
1700 memset(data, 0, sizeof(struct nfs_cb_data));
1701 data->nfs = nfs;
1702 data->cb = cb;
1703 data->private_data = private_data;
1704
1705 memset(&args, 0, sizeof(SETATTR3args));
1706 args.object.data.data_len = nfsfh->fh.data.data_len;
1707 args.object.data.data_val = nfsfh->fh.data.data_val;
1708 args.new_attributes.size.set_it = 1;
1709 args.new_attributes.size.set_size3_u.size = length;
1710
1711 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1712 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1713 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1714 free_nfs_cb_data(data);
1715 return -1;
1716 }
1717 return 0;
1718 }
1719
1720
1721 /*
1722 * Async truncate()
1723 */
1724 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1725 {
1726 uint64_t offset = data->continue_int;
1727 struct nfsfh nfsfh;
1728
1729 nfsfh.fh.data.data_val = data->fh.data.data_val;
1730 nfsfh.fh.data.data_len = data->fh.data.data_len;
1731
1732 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1733 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1734 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1735 free_nfs_cb_data(data);
1736 return -1;
1737 }
1738 free_nfs_cb_data(data);
1739 return 0;
1740 }
1741
1742 int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
1743 {
1744 uint64_t offset;
1745
1746 offset = length;
1747
1748 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1749 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1750 return -1;
1751 }
1752
1753 return 0;
1754 }
1755
1756
1757
1758
1759 /*
1760 * Async mkdir()
1761 */
1762 static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1763 {
1764 MKDIR3res *res;
1765 struct nfs_cb_data *data = private_data;
1766 struct nfs_context *nfs = data->nfs;
1767 char *str = data->continue_data;
1768
1769 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1770
1771 str = &str[strlen(str) + 1];
1772
1773 if (status == RPC_STATUS_ERROR) {
1774 data->cb(-EFAULT, nfs, command_data, data->private_data);
1775 free_nfs_cb_data(data);
1776 return;
1777 }
1778 if (status == RPC_STATUS_CANCEL) {
1779 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1780 free_nfs_cb_data(data);
1781 return;
1782 }
1783
1784 res = command_data;
1785 if (res->status != NFS3_OK) {
1786 rpc_set_error(nfs->rpc, "NFS: MKDIR of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1787 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1788 free_nfs_cb_data(data);
1789 return;
1790 }
1791
1792 data->cb(0, nfs, NULL, data->private_data);
1793 free_nfs_cb_data(data);
1794 }
1795
1796 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1797 {
1798 char *str = data->continue_data;
1799 MKDIR3args args;
1800
1801 str = &str[strlen(str) + 1];
1802
1803 memset(&args, 0, sizeof(MKDIR3args));
1804 args.where.dir.data.data_len = data->fh.data.data_len;
1805 args.where.dir.data.data_val = data->fh.data.data_val;
1806 args.where.name = str;
1807 args.attributes.mode.set_it = 1;
1808 args.attributes.mode.set_mode3_u.mode = 0755;
1809
1810 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
1811 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1812 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1813 free_nfs_cb_data(data);
1814 return -1;
1815 }
1816 return 0;
1817 }
1818
1819 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1820 {
1821 char *new_path;
1822 char *ptr;
1823
1824 new_path = strdup(path);
1825 if (new_path == NULL) {
1826 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1827 return -1;
1828 }
1829
1830 ptr = strrchr(new_path, '/');
1831 if (ptr == NULL) {
1832 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1833 return -1;
1834 }
1835 *ptr = 0;
1836
1837 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1838 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1839 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1840 return -1;
1841 }
1842
1843 return 0;
1844 }
1845
1846
1847
1848
1849
1850 /*
1851 * Async rmdir()
1852 */
1853 static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1854 {
1855 RMDIR3res *res;
1856 struct nfs_cb_data *data = private_data;
1857 struct nfs_context *nfs = data->nfs;
1858 char *str = data->continue_data;
1859
1860 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1861
1862 str = &str[strlen(str) + 1];
1863
1864 if (status == RPC_STATUS_ERROR) {
1865 data->cb(-EFAULT, nfs, command_data, data->private_data);
1866 free_nfs_cb_data(data);
1867 return;
1868 }
1869 if (status == RPC_STATUS_CANCEL) {
1870 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1871 free_nfs_cb_data(data);
1872 return;
1873 }
1874
1875 res = command_data;
1876 if (res->status != NFS3_OK) {
1877 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));
1878 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1879 free_nfs_cb_data(data);
1880 return;
1881 }
1882
1883 data->cb(0, nfs, NULL, data->private_data);
1884 free_nfs_cb_data(data);
1885 }
1886
1887 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1888 {
1889 char *str = data->continue_data;
1890
1891 str = &str[strlen(str) + 1];
1892
1893 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1894 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1895 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1896 free_nfs_cb_data(data);
1897 return -1;
1898 }
1899 return 0;
1900 }
1901
1902 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1903 {
1904 char *new_path;
1905 char *ptr;
1906
1907 new_path = strdup(path);
1908 if (new_path == NULL) {
1909 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1910 return -1;
1911 }
1912
1913 ptr = strrchr(new_path, '/');
1914 if (ptr == NULL) {
1915 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1916 return -1;
1917 }
1918 *ptr = 0;
1919
1920 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1921 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
1922 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1923 return -1;
1924 }
1925
1926 return 0;
1927 }
1928
1929
1930
1931
1932 /*
1933 * Async creat()
1934 */
1935 static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1936 {
1937 LOOKUP3res *res;
1938 struct nfs_cb_data *data = private_data;
1939 struct nfs_context *nfs = data->nfs;
1940 struct nfsfh *nfsfh;
1941 char *str = data->continue_data;
1942
1943 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1944
1945 if (status == RPC_STATUS_ERROR) {
1946 data->cb(-EFAULT, nfs, command_data, data->private_data);
1947 free_nfs_cb_data(data);
1948 return;
1949 }
1950 if (status == RPC_STATUS_CANCEL) {
1951 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1952 free_nfs_cb_data(data);
1953 return;
1954 }
1955
1956 str = &str[strlen(str) + 1];
1957 res = command_data;
1958 if (res->status != NFS3_OK) {
1959 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));
1960 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1961
1962 return;
1963 }
1964
1965 nfsfh = malloc(sizeof(struct nfsfh));
1966 if (nfsfh == NULL) {
1967 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1968 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1969 free_nfs_cb_data(data);
1970 return;
1971 }
1972 memset(nfsfh, 0, sizeof(struct nfsfh));
1973
1974 /* copy the filehandle */
1975 nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
1976 nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
1977 memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
1978
1979 data->cb(0, nfs, nfsfh, data->private_data);
1980 free_nfs_cb_data(data);
1981 }
1982
1983
1984
1985 static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1986 {
1987 CREATE3res *res;
1988 struct nfs_cb_data *data = private_data;
1989 struct nfs_context *nfs = data->nfs;
1990 char *str = data->continue_data;
1991
1992 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1993
1994 if (status == RPC_STATUS_ERROR) {
1995 data->cb(-EFAULT, nfs, command_data, data->private_data);
1996 free_nfs_cb_data(data);
1997 return;
1998 }
1999 if (status == RPC_STATUS_CANCEL) {
2000 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2001 free_nfs_cb_data(data);
2002 return;
2003 }
2004
2005 str = &str[strlen(str) + 1];
2006 res = command_data;
2007 if (res->status != NFS3_OK) {
2008 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));
2009 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2010 free_nfs_cb_data(data);
2011 return;
2012 }
2013
2014 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
2015 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
2016 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2017 free_nfs_cb_data(data);
2018 return;
2019 }
2020 return;
2021 }
2022
2023 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2024 {
2025 char *str = data->continue_data;
2026 CREATE3args args;
2027
2028 str = &str[strlen(str) + 1];
2029
2030 memset(&args, 0, sizeof(CREATE3args));
2031 args.where.dir.data.data_len = data->fh.data.data_len;
2032 args.where.dir.data.data_val = data->fh.data.data_val;
2033 args.where.name = str;
2034 args.how.mode = UNCHECKED;
2035 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
2036 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
2037
2038 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
2039 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
2040 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2041 free_nfs_cb_data(data);
2042 return -1;
2043 }
2044 return 0;
2045 }
2046
2047 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2048 {
2049 char *new_path;
2050 char *ptr;
2051
2052 new_path = strdup(path);
2053 if (new_path == NULL) {
2054 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2055 return -1;
2056 }
2057
2058 ptr = strrchr(new_path, '/');
2059 if (ptr == NULL) {
2060 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2061 return -1;
2062 }
2063 *ptr = 0;
2064
2065 /* new_path now points to the parent directory, and beyond the nul terminator is the new directory to create */
2066 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
2067 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2068 return -1;
2069 }
2070
2071 return 0;
2072 }
2073
2074
2075
2076
2077 /*
2078 * Async unlink()
2079 */
2080 static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2081 {
2082 REMOVE3res *res;
2083 struct nfs_cb_data *data = private_data;
2084 struct nfs_context *nfs = data->nfs;
2085 char *str = data->continue_data;
2086
2087 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2088
2089 str = &str[strlen(str) + 1];
2090
2091 if (status == RPC_STATUS_ERROR) {
2092 data->cb(-EFAULT, nfs, command_data, data->private_data);
2093 free_nfs_cb_data(data);
2094 return;
2095 }
2096 if (status == RPC_STATUS_CANCEL) {
2097 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2098 free_nfs_cb_data(data);
2099 return;
2100 }
2101
2102 res = command_data;
2103 if (res->status != NFS3_OK) {
2104 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));
2105 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2106 free_nfs_cb_data(data);
2107 return;
2108 }
2109
2110 data->cb(0, nfs, NULL, data->private_data);
2111 free_nfs_cb_data(data);
2112 }
2113
2114 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2115 {
2116 char *str = data->continue_data;
2117
2118 str = &str[strlen(str) + 1];
2119
2120 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
2121 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
2122 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2123 free_nfs_cb_data(data);
2124 return -1;
2125 }
2126 return 0;
2127 }
2128
2129 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2130 {
2131 char *new_path;
2132 char *ptr;
2133
2134 new_path = strdup(path);
2135 if (new_path == NULL) {
2136 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2137 return -1;
2138 }
2139
2140 ptr = strrchr(new_path, '/');
2141 if (ptr == NULL) {
2142 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2143 return -1;
2144 }
2145 *ptr = 0;
2146
2147 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2148 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
2149 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2150 return -1;
2151 }
2152
2153 return 0;
2154 }
2155
2156
2157 /*
2158 * Async mknod()
2159 */
2160 struct mknod_cb_data {
2161 char *path;
2162 int mode;
2163 int major;
2164 int minor;
2165 };
2166
2167 static void free_mknod_cb_data(void *ptr)
2168 {
2169 struct mknod_cb_data *data = ptr;
2170
2171 free(data->path);
2172 free(data);
2173 }
2174
2175 static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2176 {
2177 MKNOD3res *res;
2178 struct nfs_cb_data *data = private_data;
2179 struct nfs_context *nfs = data->nfs;
2180 char *str = data->continue_data;
2181
2182 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2183
2184 str = &str[strlen(str) + 1];
2185
2186 if (status == RPC_STATUS_ERROR) {
2187 data->cb(-EFAULT, nfs, command_data, data->private_data);
2188 free_nfs_cb_data(data);
2189 return;
2190 }
2191 if (status == RPC_STATUS_CANCEL) {
2192 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2193 free_nfs_cb_data(data);
2194 return;
2195 }
2196
2197 res = command_data;
2198 if (res->status != NFS3_OK) {
2199 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));
2200 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2201 free_nfs_cb_data(data);
2202 return;
2203 }
2204
2205 data->cb(0, nfs, NULL, data->private_data);
2206 free_nfs_cb_data(data);
2207 }
2208
2209 static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2210 {
2211 struct mknod_cb_data *cb_data = data->continue_data;
2212 char *str = cb_data->path;
2213
2214 str = &str[strlen(str) + 1];
2215
2216 if (rpc_nfs_mknod_async(nfs->rpc, nfs_mknod_cb, &data->fh, str, cb_data->mode, cb_data->major, cb_data->minor, data) != 0) {
2217 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2218 free_nfs_cb_data(data);
2219 return -1;
2220 }
2221 return 0;
2222 }
2223
2224 int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
2225 {
2226 char *ptr;
2227 struct mknod_cb_data *cb_data;
2228
2229 cb_data = malloc(sizeof(struct mknod_cb_data));
2230 if (cb_data == NULL) {
2231 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
2232 return -1;
2233 }
2234
2235 cb_data->path = strdup(path);
2236 if (cb_data->path == NULL) {
2237 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2238 free(cb_data);
2239 return -1;
2240 }
2241
2242 ptr = strrchr(cb_data->path, '/');
2243 if (ptr == NULL) {
2244 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2245 return -1;
2246 }
2247 *ptr = 0;
2248
2249 cb_data->mode = mode;
2250 cb_data->major = major(dev);
2251 cb_data->minor = minor(dev);
2252
2253 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2254 if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
2255 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2256 free_mknod_cb_data(cb_data);
2257 return -1;
2258 }
2259
2260 return 0;
2261 }
2262
2263 /*
2264 * Async opendir()
2265 */
2266
2267 /* ReadDirPlus Emulation Callback data */
2268 struct rdpe_cb_data {
2269 int getattrcount;
2270 int status;
2271 struct nfs_cb_data *data;
2272 };
2273
2274 /* ReadDirPlus Emulation LOOKUP Callback data */
2275 struct rdpe_lookup_cb_data {
2276 struct rdpe_cb_data *rdpe_cb_data;
2277 struct nfsdirent *nfsdirent;
2278 };
2279
2280 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
2281 static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2282 {
2283 LOOKUP3res *res = command_data;
2284 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
2285 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
2286 struct nfs_cb_data *data = rdpe_cb_data->data;
2287 struct nfsdir *nfsdir = data->continue_data;
2288 struct nfs_context *nfs = data->nfs;
2289 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
2290
2291 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2292
2293 free(rdpe_lookup_cb_data);
2294
2295 rdpe_cb_data->getattrcount--;
2296
2297 if (status == RPC_STATUS_ERROR) {
2298 rdpe_cb_data->status = RPC_STATUS_ERROR;
2299 }
2300 if (status == RPC_STATUS_CANCEL) {
2301 rdpe_cb_data->status = RPC_STATUS_CANCEL;
2302 }
2303 if (status == RPC_STATUS_SUCCESS && res->status != NFS3_OK) {
2304 rdpe_cb_data->status = RPC_STATUS_ERROR;
2305 }
2306 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
2307 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
2308 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
2309
2310 nfsdirent->type = attributes->type;
2311 nfsdirent->mode = attributes->mode;
2312 nfsdirent->size = attributes->size;
2313
2314 nfsdirent->atime.tv_sec = attributes->atime.seconds;
2315 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
2316 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
2317 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
2318 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
2319 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
2320 }
2321 }
2322
2323 if (rdpe_cb_data->getattrcount == 0) {
2324 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
2325 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2326 nfs_free_nfsdir(nfsdir);
2327 } else {
2328 data->cb(0, nfs, nfsdir, data->private_data);
2329 }
2330 free(rdpe_cb_data);
2331
2332 data->continue_data = NULL;
2333 free_nfs_cb_data(data);
2334 }
2335 }
2336
2337 static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2338 {
2339 READDIR3res *res = command_data;
2340 struct nfs_cb_data *data = private_data;
2341 struct nfs_context *nfs = data->nfs;
2342 struct nfsdir *nfsdir = data->continue_data;
2343 struct nfsdirent *nfsdirent;
2344 struct entry3 *entry;
2345 uint64_t cookie;
2346 struct rdpe_cb_data *rdpe_cb_data;
2347
2348 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2349
2350 if (status == RPC_STATUS_ERROR) {
2351 data->cb(-EFAULT, nfs, command_data, data->private_data);
2352 nfs_free_nfsdir(nfsdir);
2353 data->continue_data = NULL;
2354 free_nfs_cb_data(data);
2355 return;
2356 }
2357
2358 if (status == RPC_STATUS_CANCEL) {
2359 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2360 nfs_free_nfsdir(nfsdir);
2361 data->continue_data = NULL;
2362 free_nfs_cb_data(data);
2363 return;
2364 }
2365
2366 if (res->status != NFS3_OK) {
2367 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));
2368 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2369 nfs_free_nfsdir(nfsdir);
2370 data->continue_data = NULL;
2371 free_nfs_cb_data(data);
2372 return;
2373 }
2374
2375 entry =res->READDIR3res_u.resok.reply.entries;
2376 while (entry != NULL) {
2377 nfsdirent = malloc(sizeof(struct nfsdirent));
2378 if (nfsdirent == NULL) {
2379 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2380 nfs_free_nfsdir(nfsdir);
2381 data->continue_data = NULL;
2382 free_nfs_cb_data(data);
2383 return;
2384 }
2385 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2386 nfsdirent->name = strdup(entry->name);
2387 if (nfsdirent->name == NULL) {
2388 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2389 nfs_free_nfsdir(nfsdir);
2390 data->continue_data = NULL;
2391 free_nfs_cb_data(data);
2392 return;
2393 }
2394 nfsdirent->inode = entry->fileid;
2395
2396 nfsdirent->next = nfsdir->entries;
2397 nfsdir->entries = nfsdirent;
2398
2399 cookie = entry->cookie;
2400 entry = entry->nextentry;
2401 }
2402
2403 if (res->READDIR3res_u.resok.reply.eof == 0) {
2404 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 8192, data) != 0) {
2405 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2406 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2407 nfs_free_nfsdir(nfsdir);
2408 data->continue_data = NULL;
2409 free_nfs_cb_data(data);
2410 return;
2411 }
2412 return;
2413 }
2414
2415 /* steal the dirhandle */
2416 nfsdir->current = nfsdir->entries;
2417
2418 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
2419 rdpe_cb_data->getattrcount = 0;
2420 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
2421 rdpe_cb_data->data = data;
2422 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
2423 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
2424
2425 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
2426 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
2427 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
2428
2429 if (rpc_nfs_lookup_async(nfs->rpc, nfs_opendir3_cb, &data->fh, nfsdirent->name, rdpe_lookup_cb_data) != 0) {
2430 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
2431
2432 /* if we have already commands in flight, we cant just stop, we have to wait for the
2433 * commands in flight to complete
2434 */
2435 if (rdpe_cb_data->getattrcount > 0) {
2436 rdpe_cb_data->status = RPC_STATUS_ERROR;
2437 free(rdpe_lookup_cb_data);
2438 return;
2439 }
2440
2441 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2442 nfs_free_nfsdir(nfsdir);
2443 data->continue_data = NULL;
2444 free_nfs_cb_data(data);
2445 free(rdpe_lookup_cb_data);
2446 free(rdpe_cb_data);
2447 return;
2448 }
2449 rdpe_cb_data->getattrcount++;
2450 }
2451 }
2452
2453
2454 static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2455 {
2456 READDIRPLUS3res *res = command_data;
2457 struct nfs_cb_data *data = private_data;
2458 struct nfs_context *nfs = data->nfs;
2459 struct nfsdir *nfsdir = data->continue_data;
2460 struct entryplus3 *entry;
2461 uint64_t cookie;
2462
2463 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2464
2465 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
2466 cookieverf3 cv;
2467
2468 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2469 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2470 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2471 nfs_free_nfsdir(nfsdir);
2472 data->continue_data = NULL;
2473 free_nfs_cb_data(data);
2474 return;
2475 }
2476 return;
2477 }
2478
2479 if (status == RPC_STATUS_CANCEL) {
2480 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2481 nfs_free_nfsdir(nfsdir);
2482 data->continue_data = NULL;
2483 free_nfs_cb_data(data);
2484 return;
2485 }
2486
2487 if (res->status != NFS3_OK) {
2488 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));
2489 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2490 nfs_free_nfsdir(nfsdir);
2491 data->continue_data = NULL;
2492 free_nfs_cb_data(data);
2493 return;
2494 }
2495
2496 entry =res->READDIRPLUS3res_u.resok.reply.entries;
2497 while (entry != NULL) {
2498 struct nfsdirent *nfsdirent;
2499
2500 nfsdirent = malloc(sizeof(struct nfsdirent));
2501 if (nfsdirent == NULL) {
2502 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2503 nfs_free_nfsdir(nfsdir);
2504 data->continue_data = NULL;
2505 free_nfs_cb_data(data);
2506 return;
2507 }
2508 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2509 nfsdirent->name = strdup(entry->name);
2510 if (nfsdirent->name == NULL) {
2511 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2512 nfs_free_nfsdir(nfsdir);
2513 data->continue_data = NULL;
2514 free_nfs_cb_data(data);
2515 return;
2516 }
2517 nfsdirent->inode = entry->fileid;
2518 if (entry->name_attributes.attributes_follow) {
2519 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
2520 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
2521 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
2522
2523 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
2524 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
2525 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
2526 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
2527 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
2528 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
2529 }
2530
2531 nfsdirent->next = nfsdir->entries;
2532 nfsdir->entries = nfsdirent;
2533
2534 cookie = entry->cookie;
2535 entry = entry->nextentry;
2536 }
2537
2538 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
2539 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIRPLUS3res_u.resok.cookieverf, 8192, data) != 0) {
2540 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2541 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2542 nfs_free_nfsdir(nfsdir);
2543 data->continue_data = NULL;
2544 free_nfs_cb_data(data);
2545 return;
2546 }
2547 return;
2548 }
2549
2550 /* steal the dirhandle */
2551 data->continue_data = NULL;
2552 nfsdir->current = nfsdir->entries;
2553
2554 data->cb(0, nfs, nfsdir, data->private_data);
2555 free_nfs_cb_data(data);
2556 }
2557
2558 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2559 {
2560 cookieverf3 cv;
2561
2562 memset(cv, 0, sizeof(cookieverf3));
2563 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2564 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2565 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2566 free_nfs_cb_data(data);
2567 return -1;
2568 }
2569 return 0;
2570 }
2571
2572 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2573 {
2574 struct nfsdir *nfsdir;
2575
2576 nfsdir = malloc(sizeof(struct nfsdir));
2577 if (nfsdir == NULL) {
2578 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
2579 return -1;
2580 }
2581 memset(nfsdir, 0, sizeof(struct nfsdir));
2582
2583 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
2584 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2585 return -1;
2586 }
2587
2588 return 0;
2589 }
2590
2591
2592 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2593 {
2594 struct nfsdirent *nfsdirent = nfsdir->current;
2595
2596 if (nfsdir->current != NULL) {
2597 nfsdir->current = nfsdir->current->next;
2598 }
2599 return nfsdirent;
2600 }
2601
2602
2603 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2604 {
2605 nfs_free_nfsdir(nfsdir);
2606 }
2607
2608
2609
2610
2611
2612
2613
2614 /*
2615 * Async lseek()
2616 */
2617 struct lseek_cb_data {
2618 struct nfs_context *nfs;
2619 struct nfsfh *nfsfh;
2620 uint64_t offset;
2621 nfs_cb cb;
2622 void *private_data;
2623 };
2624
2625 static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2626 {
2627 GETATTR3res *res;
2628 struct lseek_cb_data *data = private_data;
2629 struct nfs_context *nfs = data->nfs;
2630
2631 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2632
2633 if (status == RPC_STATUS_ERROR) {
2634 data->cb(-EFAULT, nfs, command_data, data->private_data);
2635 free(data);
2636 return;
2637 }
2638 if (status == RPC_STATUS_CANCEL) {
2639 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2640 free(data);
2641 return;
2642 }
2643
2644 res = command_data;
2645 if (res->status != NFS3_OK) {
2646 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2647 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2648 free(data);
2649 return;
2650 }
2651
2652 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
2653 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
2654 free(data);
2655 }
2656
2657 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
2658 {
2659 struct lseek_cb_data *data;
2660
2661 if (whence == SEEK_SET) {
2662 nfsfh->offset = offset;
2663 cb(0, nfs, &nfsfh->offset, private_data);
2664 return 0;
2665 }
2666 if (whence == SEEK_CUR) {
2667 nfsfh->offset += offset;
2668 cb(0, nfs, &nfsfh->offset, private_data);
2669 return 0;
2670 }
2671
2672 data = malloc(sizeof(struct lseek_cb_data));
2673 if (data == NULL) {
2674 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
2675 return -1;
2676 }
2677
2678 data->nfs = nfs;
2679 data->nfsfh = nfsfh;
2680 data->offset = offset;
2681 data->cb = cb;
2682 data->private_data = private_data;
2683
2684 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
2685 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
2686 free(data);
2687 return -1;
2688 }
2689 return 0;
2690 }
2691
2692
2693
2694
2695 /*
2696 * Async statvfs()
2697 */
2698 static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2699 {
2700 FSSTAT3res *res;
2701 struct nfs_cb_data *data = private_data;
2702 struct nfs_context *nfs = data->nfs;
2703 struct statvfs svfs;
2704
2705 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2706
2707 if (status == RPC_STATUS_ERROR) {
2708 data->cb(-EFAULT, nfs, command_data, data->private_data);
2709 free_nfs_cb_data(data);
2710 return;
2711 }
2712 if (status == RPC_STATUS_CANCEL) {
2713 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2714 free_nfs_cb_data(data);
2715 return;
2716 }
2717
2718 res = command_data;
2719 if (res->status != NFS3_OK) {
2720 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));
2721 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2722 free_nfs_cb_data(data);
2723 return;
2724 }
2725
2726 svfs.f_bsize = 4096;
2727 svfs.f_frsize = 4096;
2728 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
2729 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
2730 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
2731 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
2732 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
2733 #if !defined(ANDROID)
2734 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
2735 svfs.f_fsid = 0;
2736 svfs.f_flag = 0;
2737 svfs.f_namemax = 256;
2738 #endif
2739
2740 data->cb(0, nfs, &svfs, data->private_data);
2741 free_nfs_cb_data(data);
2742 }
2743
2744 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2745 {
2746 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
2747 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
2748 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2749 free_nfs_cb_data(data);
2750 return -1;
2751 }
2752 return 0;
2753 }
2754
2755 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2756 {
2757 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
2758 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2759 return -1;
2760 }
2761
2762 return 0;
2763 }
2764
2765
2766
2767
2768 /*
2769 * Async readlink()
2770 */
2771 static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2772 {
2773 READLINK3res *res;
2774 struct nfs_cb_data *data = private_data;
2775 struct nfs_context *nfs = data->nfs;
2776
2777 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2778
2779 if (status == RPC_STATUS_ERROR) {
2780 data->cb(-EFAULT, nfs, command_data, data->private_data);
2781 free_nfs_cb_data(data);
2782 return;
2783 }
2784 if (status == RPC_STATUS_CANCEL) {
2785 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2786 free_nfs_cb_data(data);
2787 return;
2788 }
2789
2790 res = command_data;
2791 if (res->status != NFS3_OK) {
2792 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));
2793 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2794 free_nfs_cb_data(data);
2795 return;
2796 }
2797
2798
2799 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
2800 free_nfs_cb_data(data);
2801 }
2802
2803 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2804 {
2805 READLINK3args args;
2806
2807 args.symlink.data.data_len = data->fh.data.data_len;
2808 args.symlink.data.data_val = data->fh.data.data_val;
2809
2810 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
2811 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
2812 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2813 free_nfs_cb_data(data);
2814 return -1;
2815 }
2816 return 0;
2817 }
2818
2819 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2820 {
2821 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
2822 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2823 return -1;
2824 }
2825
2826 return 0;
2827 }
2828
2829
2830
2831
2832 /*
2833 * Async chmod()
2834 */
2835 static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2836 {
2837 struct nfs_cb_data *data = private_data;
2838 struct nfs_context *nfs = data->nfs;
2839 SETATTR3res *res;
2840
2841 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2842
2843 if (status == RPC_STATUS_ERROR) {
2844 data->cb(-EFAULT, nfs, command_data, data->private_data);
2845 free_nfs_cb_data(data);
2846 return;
2847 }
2848 if (status == RPC_STATUS_CANCEL) {
2849 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2850 free_nfs_cb_data(data);
2851 return;
2852 }
2853
2854 res = command_data;
2855 if (res->status != NFS3_OK) {
2856 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2857 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2858 free_nfs_cb_data(data);
2859 return;
2860 }
2861
2862 data->cb(0, nfs, NULL, data->private_data);
2863 free_nfs_cb_data(data);
2864 }
2865
2866 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2867 {
2868 SETATTR3args args;
2869
2870 memset(&args, 0, sizeof(SETATTR3args));
2871 args.object.data.data_len = data->fh.data.data_len;
2872 args.object.data.data_val = data->fh.data.data_val;
2873 args.new_attributes.mode.set_it = 1;
2874 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2875
2876 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2877 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2878 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2879 free_nfs_cb_data(data);
2880 return -1;
2881 }
2882 return 0;
2883 }
2884
2885
2886 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2887 {
2888 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
2889 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2890 return -1;
2891 }
2892
2893 return 0;
2894 }
2895
2896 /*
2897 * Async fchmod()
2898 */
2899 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2900 {
2901 struct nfs_cb_data *data;
2902
2903 data = malloc(sizeof(struct nfs_cb_data));
2904 if (data == NULL) {
2905 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
2906 return -1;
2907 }
2908 memset(data, 0, sizeof(struct nfs_cb_data));
2909 data->nfs = nfs;
2910 data->cb = cb;
2911 data->private_data = private_data;
2912 data->continue_int = mode;
2913 data->fh.data.data_len = nfsfh->fh.data.data_len;
2914 data->fh.data.data_val = malloc(data->fh.data.data_len);
2915 if (data->fh.data.data_val == NULL) {
2916 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2917 free_nfs_cb_data(data);
2918 return -1;
2919 }
2920 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2921
2922 if (nfs_chmod_continue_internal(nfs, data) != 0) {
2923 free_nfs_cb_data(data);
2924 return -1;
2925 }
2926
2927 return 0;
2928 }
2929
2930
2931
2932 /*
2933 * Async chown()
2934 */
2935 static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2936 {
2937 struct nfs_cb_data *data = private_data;
2938 struct nfs_context *nfs = data->nfs;
2939 SETATTR3res *res;
2940
2941 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2942
2943 if (status == RPC_STATUS_ERROR) {
2944 data->cb(-EFAULT, nfs, command_data, data->private_data);
2945 free_nfs_cb_data(data);
2946 return;
2947 }
2948 if (status == RPC_STATUS_CANCEL) {
2949 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2950 free_nfs_cb_data(data);
2951 return;
2952 }
2953
2954 res = command_data;
2955 if (res->status != NFS3_OK) {
2956 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2957 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2958 free_nfs_cb_data(data);
2959 return;
2960 }
2961
2962 data->cb(0, nfs, NULL, data->private_data);
2963 free_nfs_cb_data(data);
2964 }
2965
2966 struct nfs_chown_data {
2967 uid_t uid;
2968 gid_t gid;
2969 };
2970
2971 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2972 {
2973 SETATTR3args args;
2974 struct nfs_chown_data *chown_data = data->continue_data;
2975
2976 memset(&args, 0, sizeof(SETATTR3args));
2977 args.object.data.data_len = data->fh.data.data_len;
2978 args.object.data.data_val = data->fh.data.data_val;
2979 if (chown_data->uid != (uid_t)-1) {
2980 args.new_attributes.uid.set_it = 1;
2981 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2982 }
2983 if (chown_data->gid != (gid_t)-1) {
2984 args.new_attributes.gid.set_it = 1;
2985 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2986 }
2987
2988 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2989 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2990 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2991 free_nfs_cb_data(data);
2992 return -1;
2993 }
2994 return 0;
2995 }
2996
2997
2998 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
2999 {
3000 struct nfs_chown_data *chown_data;
3001
3002 chown_data = malloc(sizeof(struct nfs_chown_data));
3003 if (chown_data == NULL) {
3004 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3005 return -1;
3006 }
3007
3008 chown_data->uid = uid;
3009 chown_data->gid = gid;
3010
3011 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
3012 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3013 return -1;
3014 }
3015
3016 return 0;
3017 }
3018
3019
3020 /*
3021 * Async fchown()
3022 */
3023 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
3024 {
3025 struct nfs_cb_data *data;
3026 struct nfs_chown_data *chown_data;
3027
3028 chown_data = malloc(sizeof(struct nfs_chown_data));
3029 if (chown_data == NULL) {
3030 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3031 return -1;
3032 }
3033
3034 chown_data->uid = uid;
3035 chown_data->gid = gid;
3036
3037
3038 data = malloc(sizeof(struct nfs_cb_data));
3039 if (data == NULL) {
3040 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
3041 return -1;
3042 }
3043 memset(data, 0, sizeof(struct nfs_cb_data));
3044 data->nfs = nfs;
3045 data->cb = cb;
3046 data->private_data = private_data;
3047 data->continue_data = chown_data;
3048 data->fh.data.data_len = nfsfh->fh.data.data_len;
3049 data->fh.data.data_val = malloc(data->fh.data.data_len);
3050 if (data->fh.data.data_val == NULL) {
3051 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3052 free_nfs_cb_data(data);
3053 return -1;
3054 }
3055 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3056
3057
3058 if (nfs_chown_continue_internal(nfs, data) != 0) {
3059 free_nfs_cb_data(data);
3060 return -1;
3061 }
3062
3063 return 0;
3064 }
3065
3066
3067
3068
3069
3070 /*
3071 * Async utimes()
3072 */
3073 static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3074 {
3075 struct nfs_cb_data *data = private_data;
3076 struct nfs_context *nfs = data->nfs;
3077 SETATTR3res *res;
3078
3079 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3080
3081 if (status == RPC_STATUS_ERROR) {
3082 data->cb(-EFAULT, nfs, command_data, data->private_data);
3083 free_nfs_cb_data(data);
3084 return;
3085 }
3086 if (status == RPC_STATUS_CANCEL) {
3087 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3088 free_nfs_cb_data(data);
3089 return;
3090 }
3091
3092 res = command_data;
3093 if (res->status != NFS3_OK) {
3094 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3095 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3096 free_nfs_cb_data(data);
3097 return;
3098 }
3099
3100 data->cb(0, nfs, NULL, data->private_data);
3101 free_nfs_cb_data(data);
3102 }
3103
3104 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3105 {
3106 SETATTR3args args;
3107 struct timeval *utimes_data = data->continue_data;
3108
3109 memset(&args, 0, sizeof(SETATTR3args));
3110 args.object.data.data_len = data->fh.data.data_len;
3111 args.object.data.data_val = data->fh.data.data_val;
3112 if (utimes_data != NULL) {
3113 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
3114 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
3115 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
3116 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
3117 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
3118 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
3119 } else {
3120 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
3121 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
3122 }
3123
3124 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
3125 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3126 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3127 free_nfs_cb_data(data);
3128 return -1;
3129 }
3130 return 0;
3131 }
3132
3133
3134 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
3135 {
3136 struct timeval *new_times = NULL;
3137
3138 if (times != NULL) {
3139 new_times = malloc(sizeof(struct timeval)*2);
3140 if (new_times == NULL) {
3141 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3142 return -1;
3143 }
3144
3145 memcpy(new_times, times, sizeof(struct timeval)*2);
3146 }
3147
3148 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3149 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3150 return -1;
3151 }
3152
3153 return 0;
3154 }
3155
3156 /*
3157 * Async utime()
3158 */
3159 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
3160 {
3161 struct timeval *new_times = NULL;
3162
3163 if (times != NULL) {
3164 new_times = malloc(sizeof(struct timeval)*2);
3165 if (new_times == NULL) {
3166 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3167 return -1;
3168 }
3169
3170 new_times[0].tv_sec = times->actime;
3171 new_times[0].tv_usec = 0;
3172 new_times[1].tv_sec = times->modtime;
3173 new_times[1].tv_usec = 0;
3174 }
3175
3176 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3177 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3178 return -1;
3179 }
3180
3181 return 0;
3182 }
3183
3184
3185 /*
3186 * Async access()
3187 */
3188 static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3189 {
3190 ACCESS3res *res;
3191 struct nfs_cb_data *data = private_data;
3192 struct nfs_context *nfs = data->nfs;
3193 unsigned int nfsmode = 0;
3194
3195 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3196
3197 if (status == RPC_STATUS_ERROR) {
3198 data->cb(-EFAULT, nfs, command_data, data->private_data);
3199 free_nfs_cb_data(data);
3200 return;
3201 }
3202 if (status == RPC_STATUS_CANCEL) {
3203 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3204 free_nfs_cb_data(data);
3205 return;
3206 }
3207
3208 res = command_data;
3209 if (res->status != NFS3_OK) {
3210 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));
3211 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3212 free_nfs_cb_data(data);
3213 return;
3214 }
3215
3216 if (data->continue_int & R_OK) {
3217 nfsmode |= ACCESS3_READ;
3218 }
3219 if (data->continue_int & W_OK) {
3220 nfsmode |= ACCESS3_MODIFY;
3221 }
3222 if (data->continue_int & X_OK) {
3223 nfsmode |= ACCESS3_EXECUTE;
3224 }
3225
3226 if (res->ACCESS3res_u.resok.access != nfsmode) {
3227 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
3228 nfsmode&ACCESS3_READ?'r':'-',
3229 nfsmode&ACCESS3_MODIFY?'w':'-',
3230 nfsmode&ACCESS3_EXECUTE?'x':'-',
3231 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
3232 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
3233 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
3234 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
3235 free_nfs_cb_data(data);
3236 return;
3237 }
3238
3239 data->cb(0, nfs, NULL, data->private_data);
3240 free_nfs_cb_data(data);
3241 }
3242
3243 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3244 {
3245 int nfsmode = 0;
3246
3247 if (data->continue_int & R_OK) {
3248 nfsmode |= ACCESS3_READ;
3249 }
3250 if (data->continue_int & W_OK) {
3251 nfsmode |= ACCESS3_MODIFY;
3252 }
3253 if (data->continue_int & X_OK) {
3254 nfsmode |= ACCESS3_EXECUTE;
3255 }
3256
3257 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
3258 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
3259 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3260 free_nfs_cb_data(data);
3261 return -1;
3262 }
3263 return 0;
3264 }
3265
3266 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3267 {
3268 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
3269 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3270 return -1;
3271 }
3272
3273 return 0;
3274 }
3275
3276
3277
3278 /*
3279 * Async symlink()
3280 */
3281 struct nfs_symlink_data {
3282 char *oldpath;
3283 char *newpathparent;
3284 char *newpathobject;
3285 };
3286
3287 static void free_nfs_symlink_data(void *mem)
3288 {
3289 struct nfs_symlink_data *data = mem;
3290
3291 if (data->oldpath != NULL) {
3292 free(data->oldpath);
3293 }
3294 if (data->newpathparent != NULL) {
3295 free(data->newpathparent);
3296 }
3297 if (data->newpathobject != NULL) {
3298 free(data->newpathobject);
3299 }
3300 free(data);
3301 }
3302
3303 static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3304 {
3305 SYMLINK3res *res;
3306 struct nfs_cb_data *data = private_data;
3307 struct nfs_context *nfs = data->nfs;
3308 struct nfs_symlink_data *symlink_data = data->continue_data;
3309
3310 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3311
3312 if (status == RPC_STATUS_ERROR) {
3313 data->cb(-EFAULT, nfs, command_data, data->private_data);
3314 free_nfs_cb_data(data);
3315 return;
3316 }
3317 if (status == RPC_STATUS_CANCEL) {
3318 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3319 free_nfs_cb_data(data);
3320 return;
3321 }
3322
3323 res = command_data;
3324 if (res->status != NFS3_OK) {
3325 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));
3326 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3327 free_nfs_cb_data(data);
3328 return;
3329 }
3330
3331 data->cb(0, nfs, NULL, data->private_data);
3332 free_nfs_cb_data(data);
3333 }
3334
3335 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3336 {
3337 struct nfs_symlink_data *symlink_data = data->continue_data;
3338 SYMLINK3args sa;
3339
3340 memset(&sa, 0, sizeof(SYMLINK3args));
3341 sa.where.dir.data.data_len = data->fh.data.data_len;
3342 sa.where.dir.data.data_val = data->fh.data.data_val;
3343 sa.where.name = symlink_data->newpathobject;
3344 sa.symlink.symlink_attributes.mode.set_it = 1;
3345 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;
3346 sa.symlink.symlink_data = symlink_data->oldpath;
3347
3348 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &sa, data) != 0) {
3349 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
3350 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3351 free_nfs_cb_data(data);
3352 return -1;
3353 }
3354 return 0;
3355 }
3356
3357 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3358 {
3359 char *ptr;
3360 struct nfs_symlink_data *symlink_data;
3361
3362 symlink_data = malloc(sizeof(struct nfs_symlink_data));
3363 if (symlink_data == NULL) {
3364 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
3365 return -1;
3366 }
3367 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
3368
3369 symlink_data->oldpath = strdup(oldpath);
3370 if (symlink_data->oldpath == NULL) {
3371 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3372 free_nfs_symlink_data(symlink_data);
3373 return -1;
3374 }
3375
3376 symlink_data->newpathparent = strdup(newpath);
3377 if (symlink_data->newpathparent == NULL) {
3378 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3379 free_nfs_symlink_data(symlink_data);
3380 return -1;
3381 }
3382
3383 ptr = strrchr(symlink_data->newpathparent, '/');
3384 if (ptr == NULL) {
3385 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3386 free_nfs_symlink_data(symlink_data);
3387 return -1;
3388 }
3389 *ptr = 0;
3390 ptr++;
3391
3392 symlink_data->newpathobject = strdup(ptr);
3393 if (symlink_data->newpathobject == NULL) {
3394 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3395 free_nfs_symlink_data(symlink_data);
3396 return -1;
3397 }
3398
3399 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
3400 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3401 return -1;
3402 }
3403
3404 return 0;
3405 }
3406
3407
3408
3409 /*
3410 * Async rename()
3411 */
3412 struct nfs_rename_data {
3413 char *oldpath;
3414 char *oldobject;
3415 struct nfs_fh3 olddir;
3416 char *newpath;
3417 char *newobject;
3418 struct nfs_fh3 newdir;
3419 };
3420
3421 static void free_nfs_rename_data(void *mem)
3422 {
3423 struct nfs_rename_data *data = mem;
3424
3425 if (data->oldpath != NULL) {
3426 free(data->oldpath);
3427 }
3428 if (data->olddir.data.data_val != NULL) {
3429 free(data->olddir.data.data_val);
3430 }
3431 if (data->newpath != NULL) {
3432 free(data->newpath);
3433 }
3434 if (data->newdir.data.data_val != NULL) {
3435 free(data->newdir.data.data_val);
3436 }
3437 free(data);
3438 }
3439
3440 static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3441 {
3442 RENAME3res *res;
3443 struct nfs_cb_data *data = private_data;
3444 struct nfs_context *nfs = data->nfs;
3445 struct nfs_rename_data *rename_data = data->continue_data;
3446
3447 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3448
3449 if (status == RPC_STATUS_ERROR) {
3450 data->cb(-EFAULT, nfs, command_data, data->private_data);
3451 free_nfs_cb_data(data);
3452 return;
3453 }
3454 if (status == RPC_STATUS_CANCEL) {
3455 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3456 free_nfs_cb_data(data);
3457 return;
3458 }
3459
3460 res = command_data;
3461 if (res->status != NFS3_OK) {
3462 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));
3463 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3464 free_nfs_cb_data(data);
3465 return;
3466 }
3467
3468 data->cb(0, nfs, NULL, data->private_data);
3469 free_nfs_cb_data(data);
3470 }
3471
3472 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3473 {
3474 struct nfs_rename_data *rename_data = data->continue_data;
3475
3476 /* steal the filehandle */
3477 rename_data->newdir.data.data_len = data->fh.data.data_len;
3478 rename_data->newdir.data.data_val = data->fh.data.data_val;
3479 data->fh.data.data_val = NULL;
3480
3481 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
3482 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
3483 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3484 free_nfs_cb_data(data);
3485 return -1;
3486 }
3487 return 0;
3488 }
3489
3490
3491 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3492 {
3493 struct nfs_rename_data *rename_data = data->continue_data;
3494
3495 /* steal the filehandle */
3496 rename_data->olddir.data.data_len = data->fh.data.data_len;
3497 rename_data->olddir.data.data_val = data->fh.data.data_val;
3498 data->fh.data.data_val = NULL;
3499
3500 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) {
3501 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
3502 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3503 free_nfs_cb_data(data);
3504 return -1;
3505 }
3506 data->continue_data = NULL;
3507 free_nfs_cb_data(data);
3508
3509 return 0;
3510 }
3511
3512
3513 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3514 {
3515 char *ptr;
3516 struct nfs_rename_data *rename_data;
3517
3518 rename_data = malloc(sizeof(struct nfs_rename_data));
3519 if (rename_data == NULL) {
3520 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
3521 return -1;
3522 }
3523 memset(rename_data, 0, sizeof(struct nfs_rename_data));
3524
3525 rename_data->oldpath = strdup(oldpath);
3526 if (rename_data->oldpath == NULL) {
3527 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3528 free_nfs_rename_data(rename_data);
3529 return -1;
3530 }
3531 ptr = strrchr(rename_data->oldpath, '/');
3532 if (ptr == NULL) {
3533 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3534 free_nfs_rename_data(rename_data);
3535 return -1;
3536 }
3537 *ptr = 0;
3538 ptr++;
3539 rename_data->oldobject = ptr;
3540
3541
3542 rename_data->newpath = strdup(newpath);
3543 if (rename_data->newpath == NULL) {
3544 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3545 free_nfs_rename_data(rename_data);
3546 return -1;
3547 }
3548 ptr = strrchr(rename_data->newpath, '/');
3549 if (ptr == NULL) {
3550 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3551 free_nfs_rename_data(rename_data);
3552 return -1;
3553 }
3554 *ptr = 0;
3555 ptr++;
3556 rename_data->newobject = ptr;
3557
3558
3559 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
3560 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3561 return -1;
3562 }
3563
3564 return 0;
3565 }
3566
3567
3568 /*
3569 * Async link()
3570 */
3571 struct nfs_link_data {
3572 char *oldpath;
3573 struct nfs_fh3 oldfh;
3574 char *newpath;
3575 char *newobject;
3576 struct nfs_fh3 newdir;
3577 };
3578
3579 static void free_nfs_link_data(void *mem)
3580 {
3581 struct nfs_link_data *data = mem;
3582
3583 if (data->oldpath != NULL) {
3584 free(data->oldpath);
3585 }
3586 if (data->oldfh.data.data_val != NULL) {
3587 free(data->oldfh.data.data_val);
3588 }
3589 if (data->newpath != NULL) {
3590 free(data->newpath);
3591 }
3592 if (data->newdir.data.data_val != NULL) {
3593 free(data->newdir.data.data_val);
3594 }
3595 free(data);
3596 }
3597
3598 static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3599 {
3600 LINK3res *res;
3601 struct nfs_cb_data *data = private_data;
3602 struct nfs_context *nfs = data->nfs;
3603 struct nfs_link_data *link_data = data->continue_data;
3604
3605 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3606
3607 if (status == RPC_STATUS_ERROR) {
3608 data->cb(-EFAULT, nfs, command_data, data->private_data);
3609 free_nfs_cb_data(data);
3610 return;
3611 }
3612 if (status == RPC_STATUS_CANCEL) {
3613 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3614 free_nfs_cb_data(data);
3615 return;
3616 }
3617
3618 res = command_data;
3619 if (res->status != NFS3_OK) {
3620 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));
3621 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3622 free_nfs_cb_data(data);
3623 return;
3624 }
3625
3626 data->cb(0, nfs, NULL, data->private_data);
3627 free_nfs_cb_data(data);
3628 }
3629
3630 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3631 {
3632 struct nfs_link_data *link_data = data->continue_data;
3633
3634 /* steal the filehandle */
3635 link_data->newdir.data.data_len = data->fh.data.data_len;
3636 link_data->newdir.data.data_val = data->fh.data.data_val;
3637 data->fh.data.data_val = NULL;
3638
3639 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
3640 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
3641 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3642 free_nfs_cb_data(data);
3643 return -1;
3644 }
3645 return 0;
3646 }
3647
3648
3649 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3650 {
3651 struct nfs_link_data *link_data = data->continue_data;
3652
3653 /* steal the filehandle */
3654 link_data->oldfh.data.data_len = data->fh.data.data_len;
3655 link_data->oldfh.data.data_val = data->fh.data.data_val;
3656 data->fh.data.data_val = NULL;
3657
3658 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) {
3659 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
3660 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3661 free_nfs_cb_data(data);
3662 return -1;
3663 }
3664 data->continue_data = NULL;
3665 free_nfs_cb_data(data);
3666
3667 return 0;
3668 }
3669
3670
3671 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3672 {
3673 char *ptr;
3674 struct nfs_link_data *link_data;
3675
3676 link_data = malloc(sizeof(struct nfs_link_data));
3677 if (link_data == NULL) {
3678 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
3679 return -1;
3680 }
3681 memset(link_data, 0, sizeof(struct nfs_link_data));
3682
3683 link_data->oldpath = strdup(oldpath);
3684 if (link_data->oldpath == NULL) {
3685 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3686 free_nfs_link_data(link_data);
3687 return -1;
3688 }
3689
3690 link_data->newpath = strdup(newpath);
3691 if (link_data->newpath == NULL) {
3692 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3693 free_nfs_link_data(link_data);
3694 return -1;
3695 }
3696 ptr = strrchr(link_data->newpath, '/');
3697 if (ptr == NULL) {
3698 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3699 free_nfs_link_data(link_data);
3700 return -1;
3701 }
3702 *ptr = 0;
3703 ptr++;
3704 link_data->newobject = ptr;
3705
3706
3707 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
3708 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3709 return -1;
3710 }
3711
3712 return 0;
3713 }
3714
3715
3716 //qqq replace later with lseek()
3717 uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
3718 {
3719 return nfsfh->offset;
3720 }
3721
3722
3723
3724 /*
3725 * Get the maximum supported READ3 size by the server
3726 */
3727 uint64_t nfs_get_readmax(struct nfs_context *nfs)
3728 {
3729 return nfs->readmax;
3730 }
3731
3732 /*
3733 * Get the maximum supported WRITE3 size by the server
3734 */
3735 uint64_t nfs_get_writemax(struct nfs_context *nfs)
3736 {
3737 return nfs->writemax;
3738 }
3739
3740 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
3741 {
3742 va_list ap;
3743 char *str = NULL;
3744
3745 va_start(ap, error_string);
3746 str = malloc(1024);
3747 vsnprintf(str, 1024, error_string, ap);
3748 if (nfs->rpc->error_string != NULL) {
3749 free(nfs->rpc->error_string);
3750 }
3751 nfs->rpc->error_string = str;
3752 va_end(ap);
3753 }
3754
3755
3756
3757 struct mount_cb_data {
3758 rpc_cb cb;
3759 void *private_data;
3760 char *server;
3761 };
3762
3763 static void free_mount_cb_data(struct mount_cb_data *data)
3764 {
3765 if (data->server != NULL) {
3766 free(data->server);
3767 data->server = NULL;
3768 }
3769
3770 free(data);
3771 }
3772
3773 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3774 {
3775 struct mount_cb_data *data = private_data;
3776
3777 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3778
3779 if (status == RPC_STATUS_ERROR) {
3780 data->cb(rpc, -EFAULT, command_data, data->private_data);
3781 free_mount_cb_data(data);
3782 return;
3783 }
3784 if (status == RPC_STATUS_CANCEL) {
3785 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3786 free_mount_cb_data(data);
3787 return;
3788 }
3789
3790 data->cb(rpc, 0, command_data, data->private_data);
3791 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
3792 rpc_set_error(rpc, "Failed to disconnect\n");
3793 }
3794 free_mount_cb_data(data);
3795 }
3796
3797 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3798 {
3799 struct mount_cb_data *data = private_data;
3800
3801 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3802
3803 /* Dont want any more callbacks even if the socket is closed */
3804 rpc->connect_cb = NULL;
3805
3806 if (status == RPC_STATUS_ERROR) {
3807 data->cb(rpc, -EFAULT, command_data, data->private_data);
3808 free_mount_cb_data(data);
3809 return;
3810 }
3811 if (status == RPC_STATUS_CANCEL) {
3812 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3813 free_mount_cb_data(data);
3814 return;
3815 }
3816
3817 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
3818 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3819 free_mount_cb_data(data);
3820 return;
3821 }
3822 }
3823
3824 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3825 {
3826 struct mount_cb_data *data = private_data;
3827 uint32_t mount_port;
3828
3829 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3830
3831 if (status == RPC_STATUS_ERROR) {
3832 data->cb(rpc, -EFAULT, command_data, data->private_data);
3833 free_mount_cb_data(data);
3834 return;
3835 }
3836 if (status == RPC_STATUS_CANCEL) {
3837 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3838 free_mount_cb_data(data);
3839 return;
3840 }
3841
3842 mount_port = *(uint32_t *)command_data;
3843 if (mount_port == 0) {
3844 rpc_set_error(rpc, "RPC error. Mount program is not available");
3845 data->cb(rpc, -ENOENT, command_data, data->private_data);
3846 free_mount_cb_data(data);
3847 return;
3848 }
3849
3850 rpc_disconnect(rpc, "normal disconnect");
3851 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
3852 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3853 free_mount_cb_data(data);
3854 return;
3855 }
3856 }
3857
3858 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3859 {
3860 struct mount_cb_data *data = private_data;
3861
3862 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3863
3864 if (status == RPC_STATUS_ERROR) {
3865 data->cb(rpc, -EFAULT, command_data, data->private_data);
3866 free_mount_cb_data(data);
3867 return;
3868 }
3869 if (status == RPC_STATUS_CANCEL) {
3870 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3871 free_mount_cb_data(data);
3872 return;
3873 }
3874
3875 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
3876 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3877 free_mount_cb_data(data);
3878 return;
3879 }
3880 }
3881
3882 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3883 {
3884 struct mount_cb_data *data = private_data;
3885
3886 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3887
3888 /* Dont want any more callbacks even if the socket is closed */
3889 rpc->connect_cb = NULL;
3890
3891 if (status == RPC_STATUS_ERROR) {
3892 data->cb(rpc, -EFAULT, command_data, data->private_data);
3893 free_mount_cb_data(data);
3894 return;
3895 }
3896 if (status == RPC_STATUS_CANCEL) {
3897 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3898 free_mount_cb_data(data);
3899 return;
3900 }
3901
3902 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
3903 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3904 free_mount_cb_data(data);
3905 return;
3906 }
3907 }
3908
3909 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
3910 {
3911 struct mount_cb_data *data;
3912
3913 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3914
3915 data = malloc(sizeof(struct mount_cb_data));
3916 if (data == NULL) {
3917 return -1;
3918 }
3919 memset(data, 0, sizeof(struct mount_cb_data));
3920 data->cb = cb;
3921 data->private_data = private_data;
3922 data->server = strdup(server);
3923 if (data->server == NULL) {
3924 free_mount_cb_data(data);
3925 return -1;
3926 }
3927 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
3928 free_mount_cb_data(data);
3929 return -1;
3930 }
3931
3932 return 0;
3933 }
3934
3935 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
3936 {
3937 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
3938 return nfs->rpc;
3939 }
3940
3941 const char *nfs_get_server(struct nfs_context *nfs) {
3942 return nfs->server;
3943 }
3944
3945 const char *nfs_get_export(struct nfs_context *nfs) {
3946 return nfs->export;
3947 }
3948
3949 const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
3950 return &nfs->rootfh;
3951 }
3952
3953 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
3954 return &nfsfh->fh;
3955 }
libnfs Piment Noir Debian package repository