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Add a new nfs_stat64() function that operates on a always-64-bit stat structure
[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 char *cwd;
97 };
98
99 void nfs_free_nfsdir(struct nfsdir *nfsdir)
100 {
101 while (nfsdir->entries) {
102 struct nfsdirent *dirent = nfsdir->entries->next;
103 if (nfsdir->entries->name != NULL) {
104 free(nfsdir->entries->name);
105 }
106 free(nfsdir->entries);
107 nfsdir->entries = dirent;
108 }
109 free(nfsdir);
110 }
111
112 struct nfs_cb_data;
113 typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
114
115 struct nfs_cb_data {
116 struct nfs_context *nfs;
117 struct nfsfh *nfsfh;
118 char *saved_path, *path;
119
120 nfs_cb cb;
121 void *private_data;
122
123 continue_func continue_cb;
124 void *continue_data;
125 void (*free_continue_data)(void *);
126 int continue_int;
127
128 struct nfs_fh3 fh;
129
130 /* for multi-read/write calls. */
131 int error;
132 int cancel;
133 int num_calls;
134 uint64_t start_offset, max_offset;
135 char *buffer;
136 };
137
138 struct nfs_mcb_data {
139 struct nfs_cb_data *data;
140 uint64_t offset;
141 uint64_t count;
142 };
143
144 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
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 int nfs_set_context_args(struct nfs_context *nfs, char *arg, char *val)
177 {
178 if (!strncmp(arg, "tcp-syncnt", 10)) {
179 rpc_set_tcp_syncnt(nfs_get_rpc_context(nfs), atoi(val));
180 } else if (!strncmp(arg, "uid", 3)) {
181 rpc_set_uid(nfs_get_rpc_context(nfs), atoi(val));
182 } else if (!strncmp(arg, "gid", 3)) {
183 rpc_set_gid(nfs_get_rpc_context(nfs), atoi(val));
184 }
185 return 0;
186 }
187
188 static struct nfs_url *nfs_parse_url(struct nfs_context *nfs, const char *url, int dir, int incomplete)
189 {
190 struct nfs_url *urls;
191 char *strp, *flagsp, *strp2;
192
193 if (strncmp(url, "nfs://", 6)) {
194 rpc_set_error(nfs->rpc, "Invalid URL specified");
195 return NULL;
196 }
197
198 urls = malloc(sizeof(struct nfs_url));
199 if (urls == NULL) {
200 rpc_set_error(nfs->rpc, "Out of memory");
201 return NULL;
202 }
203
204 memset(urls, 0x00, sizeof(struct nfs_url));
205 urls->server = strdup(url + 6);
206 if (urls->server == NULL) {
207 nfs_destroy_url(urls);
208 rpc_set_error(nfs->rpc, "Out of memory");
209 return NULL;
210 }
211
212 if (urls->server[0] == '/' || urls->server[0] == '\0' ||
213 urls->server[0] == '?') {
214 if (incomplete) {
215 flagsp = strchr(urls->server, '?');
216 goto flags;
217 }
218 nfs_destroy_url(urls);
219 rpc_set_error(nfs->rpc, "Invalid server string");
220 return NULL;
221 }
222
223 strp = strchr(urls->server, '/');
224 if (strp == NULL) {
225 if (incomplete) {
226 flagsp = strchr(urls->server, '?');
227 goto flags;
228 }
229 nfs_destroy_url(urls);
230 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
231 return NULL;
232 }
233
234 urls->path = strdup(strp);
235 if (urls->path == NULL) {
236 nfs_destroy_url(urls);
237 rpc_set_error(nfs->rpc, "Out of memory");
238 return NULL;
239 }
240 *strp = 0;
241
242 if (dir) {
243 flagsp = strchr(urls->path, '?');
244 goto flags;
245 }
246
247 strp = strrchr(urls->path, '/');
248 if (strp == NULL) {
249 if (incomplete) {
250 flagsp = strchr(urls->path, '?');
251 goto flags;
252 }
253 nfs_destroy_url(urls);
254 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
255 return NULL;
256 }
257 urls->file = strdup(strp);
258 if (urls->path == NULL) {
259 nfs_destroy_url(urls);
260 rpc_set_error(nfs->rpc, "Out of memory");
261 return NULL;
262 }
263 *strp = 0;
264 flagsp = strchr(urls->file, '?');
265
266 flags:
267 if (flagsp) {
268 *flagsp = 0;
269 }
270
271 if (urls->file && !strlen(urls->file)) {
272 free(urls->file);
273 urls->file = NULL;
274 if (!incomplete) {
275 nfs_destroy_url(urls);
276 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
277 return NULL;
278 }
279 }
280
281 while (flagsp != NULL && *(flagsp+1) != 0) {
282 strp = flagsp + 1;
283 flagsp = strchr(strp, '&');
284 if (flagsp) {
285 *flagsp = 0;
286 }
287 strp2 = strchr(strp, '=');
288 if (strp2) {
289 *strp2 = 0;
290 strp2++;
291 nfs_set_context_args(nfs, strp, strp2);
292 }
293 }
294
295 if (urls->server && strlen(urls->server) <= 1) {
296 free(urls->server);
297 urls->server = NULL;
298 }
299
300 return urls;
301 }
302
303 struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url)
304 {
305 return nfs_parse_url(nfs, url, 0, 0);
306 }
307
308 struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url)
309 {
310 return nfs_parse_url(nfs, url, 1, 0);
311 }
312
313 struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url)
314 {
315 return nfs_parse_url(nfs, url, 0, 1);
316 }
317
318
319 void nfs_destroy_url(struct nfs_url *url)
320 {
321 if (url) {
322 free(url->server);
323 free(url->path);
324 free(url->file);
325 }
326 free(url);
327 }
328
329 struct nfs_context *nfs_init_context(void)
330 {
331 struct nfs_context *nfs;
332
333 nfs = malloc(sizeof(struct nfs_context));
334 if (nfs == NULL) {
335 return NULL;
336 }
337 memset(nfs, 0, sizeof(struct nfs_context));
338
339 nfs->rpc = rpc_init_context();
340 if (nfs->rpc == NULL) {
341 free(nfs);
342 return NULL;
343 }
344
345 nfs->cwd = strdup("/");
346
347 return nfs;
348 }
349
350 void nfs_destroy_context(struct nfs_context *nfs)
351 {
352 rpc_destroy_context(nfs->rpc);
353 nfs->rpc = NULL;
354
355 if (nfs->server) {
356 free(nfs->server);
357 nfs->server = NULL;
358 }
359
360 if (nfs->export) {
361 free(nfs->export);
362 nfs->export = NULL;
363 }
364
365 if (nfs->cwd) {
366 free(nfs->cwd);
367 nfs->cwd = NULL;
368 }
369
370 if (nfs->rootfh.data.data_val != NULL) {
371 free(nfs->rootfh.data.data_val);
372 nfs->rootfh.data.data_val = NULL;
373 }
374
375 free(nfs);
376 }
377
378 struct rpc_cb_data {
379 char *server;
380 uint32_t program;
381 uint32_t version;
382
383 rpc_cb cb;
384 void *private_data;
385 };
386
387 void free_rpc_cb_data(struct rpc_cb_data *data)
388 {
389 free(data->server);
390 data->server = NULL;
391 free(data);
392 }
393
394 static void rpc_connect_program_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
395 {
396 struct rpc_cb_data *data = private_data;
397
398 assert(rpc->magic == RPC_CONTEXT_MAGIC);
399
400 /* Dont want any more callbacks even if the socket is closed */
401 rpc->connect_cb = NULL;
402
403 if (status == RPC_STATUS_ERROR) {
404 data->cb(rpc, status, command_data, data->private_data);
405 free_rpc_cb_data(data);
406 return;
407 }
408 if (status == RPC_STATUS_CANCEL) {
409 data->cb(rpc, status, "Command was cancelled", data->private_data);
410 free_rpc_cb_data(data);
411 return;
412 }
413
414 data->cb(rpc, status, NULL, data->private_data);
415 free_rpc_cb_data(data);
416 }
417
418 static void rpc_connect_program_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
419 {
420 struct rpc_cb_data *data = private_data;
421 uint32_t rpc_port;
422
423 assert(rpc->magic == RPC_CONTEXT_MAGIC);
424
425 if (status == RPC_STATUS_ERROR) {
426 data->cb(rpc, status, command_data, data->private_data);
427 free_rpc_cb_data(data);
428 return;
429 }
430 if (status == RPC_STATUS_CANCEL) {
431 data->cb(rpc, status, "Command was cancelled", data->private_data);
432 free_rpc_cb_data(data);
433 return;
434 }
435
436 rpc_port = *(uint32_t *)command_data;
437 if (rpc_port == 0) {
438 rpc_set_error(rpc, "RPC error. Program is not available on %s", data->server);
439 data->cb(rpc, RPC_STATUS_ERROR, rpc_get_error(rpc), data->private_data);
440 free_rpc_cb_data(data);
441 return;
442 }
443
444 rpc_disconnect(rpc, "normal disconnect");
445 if (rpc_connect_async(rpc, data->server, rpc_port, rpc_connect_program_4_cb, data) != 0) {
446 data->cb(rpc, status, command_data, data->private_data);
447 free_rpc_cb_data(data);
448 return;
449 }
450 }
451
452 static void rpc_connect_program_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
453 {
454 struct rpc_cb_data *data = private_data;
455
456 assert(rpc->magic == RPC_CONTEXT_MAGIC);
457
458 if (status == RPC_STATUS_ERROR) {
459 data->cb(rpc, status, command_data, data->private_data);
460 free_rpc_cb_data(data);
461 return;
462 }
463 if (status == RPC_STATUS_CANCEL) {
464 data->cb(rpc, status, "Command was cancelled", data->private_data);
465 free_rpc_cb_data(data);
466 return;
467 }
468
469 if (rpc_pmap_getport_async(rpc, data->program, data->version, IPPROTO_TCP, rpc_connect_program_3_cb, private_data) != 0) {
470 data->cb(rpc, status, command_data, data->private_data);
471 free_rpc_cb_data(data);
472 return;
473 }
474 }
475
476 static void rpc_connect_program_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
477 {
478 struct rpc_cb_data *data = private_data;
479
480 assert(rpc->magic == RPC_CONTEXT_MAGIC);
481
482 /* Dont want any more callbacks even if the socket is closed */
483 rpc->connect_cb = NULL;
484
485 if (status == RPC_STATUS_ERROR) {
486 data->cb(rpc, status, command_data, data->private_data);
487 free_rpc_cb_data(data);
488 return;
489 }
490 if (status == RPC_STATUS_CANCEL) {
491 data->cb(rpc, status, "Command was cancelled", data->private_data);
492 free_rpc_cb_data(data);
493 return;
494 }
495
496 if (rpc_pmap_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
497 data->cb(rpc, status, command_data, data->private_data);
498 free_rpc_cb_data(data);
499 return;
500 }
501 }
502
503 int rpc_connect_program_async(struct rpc_context *rpc, char *server, int program, int version, rpc_cb cb, void *private_data)
504 {
505 struct rpc_cb_data *data;
506
507 data = malloc(sizeof(struct rpc_cb_data));
508 if (data == NULL) {
509 return -1;
510 }
511 memset(data, 0, sizeof(struct rpc_cb_data));
512 data->server = strdup(server);
513 data->program = program;
514 data->version = version;
515
516 data->cb = cb;
517 data->private_data = private_data;
518
519 if (rpc_connect_async(rpc, server, 111, rpc_connect_program_1_cb, data) != 0) {
520 rpc_set_error(rpc, "Failed to start connection");
521 free_rpc_cb_data(data);
522 return -1;
523 }
524 return 0;
525 }
526
527 static void free_nfs_cb_data(struct nfs_cb_data *data)
528 {
529 if (data->continue_data != NULL) {
530 assert(data->free_continue_data);
531 data->free_continue_data(data->continue_data);
532 }
533
534 free(data->saved_path);
535 free(data->fh.data.data_val);
536 free(data->buffer);
537
538 free(data);
539 }
540
541
542
543
544
545 static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
546 {
547 struct nfs_cb_data *data = private_data;
548 struct nfs_context *nfs = data->nfs;
549
550 assert(rpc->magic == RPC_CONTEXT_MAGIC);
551
552 if (status == RPC_STATUS_ERROR) {
553 data->cb(-EFAULT, nfs, command_data, data->private_data);
554 free_nfs_cb_data(data);
555 return;
556 }
557 if (status == RPC_STATUS_CANCEL) {
558 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
559 free_nfs_cb_data(data);
560 return;
561 }
562
563 data->cb(0, nfs, NULL, data->private_data);
564 free_nfs_cb_data(data);
565 }
566
567 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
568 {
569 struct nfs_cb_data *data = private_data;
570 struct nfs_context *nfs = data->nfs;
571 FSINFO3res *res = command_data;
572 struct GETATTR3args args;
573
574 assert(rpc->magic == RPC_CONTEXT_MAGIC);
575
576 if (status == RPC_STATUS_ERROR) {
577 data->cb(-EFAULT, nfs, command_data, data->private_data);
578 free_nfs_cb_data(data);
579 return;
580 }
581 if (status == RPC_STATUS_CANCEL) {
582 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
583 free_nfs_cb_data(data);
584 return;
585 }
586
587 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
588 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
589
590 memset(&args, 0, sizeof(GETATTR3args));
591 args.object = nfs->rootfh;
592
593 if (rpc_nfs3_getattr_async(rpc, nfs_mount_10_cb, &args, data) != 0) {
594 data->cb(-ENOMEM, nfs, command_data, data->private_data);
595 free_nfs_cb_data(data);
596 return;
597 }
598 }
599
600 static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
601 {
602 struct nfs_cb_data *data = private_data;
603 struct nfs_context *nfs = data->nfs;
604 struct FSINFO3args args;
605
606 assert(rpc->magic == RPC_CONTEXT_MAGIC);
607
608 if (status == RPC_STATUS_ERROR) {
609 data->cb(-EFAULT, nfs, command_data, data->private_data);
610 free_nfs_cb_data(data);
611 return;
612 }
613 if (status == RPC_STATUS_CANCEL) {
614 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
615 free_nfs_cb_data(data);
616 return;
617 }
618
619 args.fsroot = nfs->rootfh;
620 if (rpc_nfs3_fsinfo_async(rpc, nfs_mount_9_cb, &args, data) != 0) {
621 data->cb(-ENOMEM, nfs, command_data, data->private_data);
622 free_nfs_cb_data(data);
623 return;
624 }
625 }
626
627
628 static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
629 {
630 struct nfs_cb_data *data = private_data;
631 struct nfs_context *nfs = data->nfs;
632
633 assert(rpc->magic == RPC_CONTEXT_MAGIC);
634
635 /* Dont want any more callbacks even if the socket is closed */
636 rpc->connect_cb = NULL;
637
638 if (status == RPC_STATUS_ERROR) {
639 data->cb(-EFAULT, nfs, command_data, data->private_data);
640 free_nfs_cb_data(data);
641 return;
642 }
643 if (status == RPC_STATUS_CANCEL) {
644 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
645 free_nfs_cb_data(data);
646 return;
647 }
648
649 if (rpc_nfs3_null_async(rpc, nfs_mount_8_cb, data) != 0) {
650 data->cb(-ENOMEM, nfs, command_data, data->private_data);
651 free_nfs_cb_data(data);
652 return;
653 }
654 }
655
656
657 static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
658 {
659 struct nfs_cb_data *data = private_data;
660 struct nfs_context *nfs = data->nfs;
661 mountres3 *res;
662
663 assert(rpc->magic == RPC_CONTEXT_MAGIC);
664
665 if (status == RPC_STATUS_ERROR) {
666 data->cb(-EFAULT, nfs, command_data, data->private_data);
667 free_nfs_cb_data(data);
668 return;
669 }
670 if (status == RPC_STATUS_CANCEL) {
671 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
672 free_nfs_cb_data(data);
673 return;
674 }
675
676 res = command_data;
677 if (res->fhs_status != MNT3_OK) {
678 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));
679 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
680 free_nfs_cb_data(data);
681 return;
682 }
683
684 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
685 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
686 if (nfs->rootfh.data.data_val == NULL) {
687 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
688 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
689 free_nfs_cb_data(data);
690 return;
691 }
692 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
693
694 rpc_disconnect(rpc, "normal disconnect");
695 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
696 data->cb(-ENOMEM, nfs, command_data, data->private_data);
697 free_nfs_cb_data(data);
698 return;
699 }
700 /* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
701 rpc_set_autoreconnect(rpc);
702 }
703
704
705 static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
706 {
707 struct nfs_cb_data *data = private_data;
708 struct nfs_context *nfs = data->nfs;
709
710 assert(rpc->magic == RPC_CONTEXT_MAGIC);
711
712 if (status == RPC_STATUS_ERROR) {
713 data->cb(-EFAULT, nfs, command_data, data->private_data);
714 free_nfs_cb_data(data);
715 return;
716 }
717 if (status == RPC_STATUS_CANCEL) {
718 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
719 free_nfs_cb_data(data);
720 return;
721 }
722
723 if (rpc_mount3_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
724 data->cb(-ENOMEM, nfs, command_data, data->private_data);
725 free_nfs_cb_data(data);
726 return;
727 }
728 }
729
730 static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
731 {
732 struct nfs_cb_data *data = private_data;
733 struct nfs_context *nfs = data->nfs;
734
735 assert(rpc->magic == RPC_CONTEXT_MAGIC);
736
737 /* Dont want any more callbacks even if the socket is closed */
738 rpc->connect_cb = NULL;
739
740 if (status == RPC_STATUS_ERROR) {
741 data->cb(-EFAULT, nfs, command_data, data->private_data);
742 free_nfs_cb_data(data);
743 return;
744 }
745 if (status == RPC_STATUS_CANCEL) {
746 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
747 free_nfs_cb_data(data);
748 return;
749 }
750
751 if (rpc_mount3_null_async(rpc, nfs_mount_5_cb, data) != 0) {
752 data->cb(-ENOMEM, nfs, command_data, data->private_data);
753 free_nfs_cb_data(data);
754 return;
755 }
756 }
757
758 static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
759 {
760 struct nfs_cb_data *data = private_data;
761 struct nfs_context *nfs = data->nfs;
762 uint32_t mount_port;
763
764 assert(rpc->magic == RPC_CONTEXT_MAGIC);
765
766 if (status == RPC_STATUS_ERROR) {
767 data->cb(-EFAULT, nfs, command_data, data->private_data);
768 free_nfs_cb_data(data);
769 return;
770 }
771 if (status == RPC_STATUS_CANCEL) {
772 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
773 free_nfs_cb_data(data);
774 return;
775 }
776
777 mount_port = *(uint32_t *)command_data;
778 if (mount_port == 0) {
779 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
780 data->cb(-ENOENT, nfs, command_data, data->private_data);
781 free_nfs_cb_data(data);
782 return;
783 }
784
785 rpc_disconnect(rpc, "normal disconnect");
786 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
787 data->cb(-ENOMEM, nfs, command_data, data->private_data);
788 free_nfs_cb_data(data);
789 return;
790 }
791 }
792
793
794 static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
795 {
796 struct nfs_cb_data *data = private_data;
797 struct nfs_context *nfs = data->nfs;
798
799 assert(rpc->magic == RPC_CONTEXT_MAGIC);
800
801 if (status == RPC_STATUS_ERROR) {
802 data->cb(-EFAULT, nfs, command_data, data->private_data);
803 free_nfs_cb_data(data);
804 return;
805 }
806 if (status == RPC_STATUS_CANCEL) {
807 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
808 free_nfs_cb_data(data);
809 return;
810 }
811
812 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, nfs_mount_3_cb, private_data) != 0) {
813 data->cb(-ENOMEM, nfs, command_data, data->private_data);
814 free_nfs_cb_data(data);
815 return;
816 }
817 }
818
819 static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
820 {
821 struct nfs_cb_data *data = private_data;
822 struct nfs_context *nfs = data->nfs;
823
824 assert(rpc->magic == RPC_CONTEXT_MAGIC);
825
826 /* Dont want any more callbacks even if the socket is closed */
827 rpc->connect_cb = NULL;
828
829 if (status == RPC_STATUS_ERROR) {
830 data->cb(-EFAULT, nfs, command_data, data->private_data);
831 free_nfs_cb_data(data);
832 return;
833 }
834 if (status == RPC_STATUS_CANCEL) {
835 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
836 free_nfs_cb_data(data);
837 return;
838 }
839
840 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
841 data->cb(-ENOMEM, nfs, command_data, data->private_data);
842 free_nfs_cb_data(data);
843 return;
844 }
845 }
846
847 /*
848 * Async call for mounting an nfs share and geting the root filehandle
849 */
850 int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
851 {
852 struct nfs_cb_data *data;
853 char *new_server, *new_export;
854
855 data = malloc(sizeof(struct nfs_cb_data));
856 if (data == NULL) {
857 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
858 return -1;
859 }
860 memset(data, 0, sizeof(struct nfs_cb_data));
861 new_server = strdup(server);
862 new_export = strdup(export);
863 if (nfs->server != NULL) {
864 free(nfs->server);
865 }
866 nfs->server = new_server;
867 if (nfs->export != NULL) {
868 free(nfs->export);
869 }
870 nfs->export = new_export;
871 data->nfs = nfs;
872 data->cb = cb;
873 data->private_data = private_data;
874
875 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
876 rpc_set_error(nfs->rpc, "Failed to start connection");
877 free_nfs_cb_data(data);
878 return -1;
879 }
880
881 return 0;
882 }
883
884
885
886 /*
887 * Functions to first look up a path, component by component, and then finally call a specific function once
888 * the filehandle for the final component is found.
889 */
890 static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
891 {
892 struct nfs_cb_data *data = private_data;
893 struct nfs_context *nfs = data->nfs;
894 LOOKUP3res *res;
895
896 assert(rpc->magic == RPC_CONTEXT_MAGIC);
897
898 if (status == RPC_STATUS_ERROR) {
899 data->cb(-EFAULT, nfs, command_data, data->private_data);
900 free_nfs_cb_data(data);
901 return;
902 }
903 if (status == RPC_STATUS_CANCEL) {
904 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
905 free_nfs_cb_data(data);
906 return;
907 }
908
909 res = command_data;
910 if (res->status != NFS3_OK) {
911 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));
912 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
913 free_nfs_cb_data(data);
914 return;
915 }
916
917 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
918 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
919 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
920 free_nfs_cb_data(data);
921 return;
922 }
923 }
924
925 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
926 {
927 char *path, *slash;
928 LOOKUP3args args;
929
930 while (*data->path == '/') {
931 data->path++;
932 }
933
934 path = data->path;
935 slash = strchr(path, '/');
936 if (slash != NULL) {
937 /* Clear slash so that path is a zero terminated string for
938 * the current path component. Set it back to '/' again later
939 * when we are finished referencing this component so that
940 * data->saved_path will still point to the full
941 * normalized path.
942 */
943 *slash = 0;
944 data->path = slash+1;
945 } else {
946 while (*data->path != 0) {
947 data->path++;
948 }
949 }
950
951 if (*path == 0) {
952 data->fh.data.data_len = fh->data.data_len;
953 data->fh.data.data_val = malloc(data->fh.data.data_len);
954 if (data->fh.data.data_val == NULL) {
955 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
956 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
957 free_nfs_cb_data(data);
958 return -1;
959 }
960 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
961 if (slash != NULL) {
962 *slash = '/';
963 }
964 data->continue_cb(nfs, data);
965 return 0;
966 }
967
968
969 memset(&args, 0, sizeof(LOOKUP3args));
970 args.what.dir = *fh;
971 args.what.name = path;
972
973 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, &args, data) != 0) {
974 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
975 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
976 free_nfs_cb_data(data);
977 return -1;
978 }
979 if (slash != NULL) {
980 *slash = '/';
981 }
982 return 0;
983 }
984
985 static int nfs_normalize_path(struct nfs_context *nfs, char *path)
986 {
987 char *str;
988 int len;
989
990 /* // -> / */
991 while ((str = strstr(path, "//"))) {
992 while(*str) {
993 *str = *(str + 1);
994 str++;
995 }
996 }
997
998 /* /./ -> / */
999 while ((str = strstr(path, "/./"))) {
1000 while(*(str + 1)) {
1001 *str = *(str + 2);
1002 str++;
1003 }
1004 }
1005
1006 /* ^/../ -> error */
1007 if (!strncmp(path, "/../", 4)) {
1008 rpc_set_error(nfs->rpc,
1009 "Absolute path starts with '/../' "
1010 "during normalization");
1011 return -1;
1012 }
1013
1014 /* ^[^/] -> error */
1015 if (path[0] != '/') {
1016 rpc_set_error(nfs->rpc,
1017 "Absolute path does not start with '/'");
1018 return -1;
1019 }
1020
1021 /* /string/../ -> / */
1022 while ((str = strstr(path, "/../"))) {
1023 char *tmp;
1024
1025 if (!strncmp(path, "/../", 4)) {
1026 rpc_set_error(nfs->rpc,
1027 "Absolute path starts with '/../' "
1028 "during normalization");
1029 return -1;
1030 }
1031
1032 tmp = str - 1;
1033 while (*tmp != '/') {
1034 tmp--;
1035 }
1036 str += 3;
1037 while((*(tmp++) = *(str++)) != '\0')
1038 ;
1039 }
1040
1041 /* /$ -> \0 */
1042 len = strlen(path);
1043 if (len >= 1) {
1044 if (path[len - 1] == '/') {
1045 path[len - 1] = '\0';
1046 len--;
1047 }
1048 }
1049 if (path[0] == '\0') {
1050 rpc_set_error(nfs->rpc,
1051 "Absolute path became '' "
1052 "during normalization");
1053 return -1;
1054 }
1055
1056 /* /.$ -> \0 */
1057 if (len >= 2) {
1058 if (!strcmp(&path[len - 2], "/.")) {
1059 path[len - 2] = '\0';
1060 len -= 2;
1061 }
1062 }
1063
1064 /* ^/..$ -> error */
1065 if (!strcmp(path, "/..")) {
1066 rpc_set_error(nfs->rpc,
1067 "Absolute path is '/..' "
1068 "during normalization");
1069 return -1;
1070 }
1071
1072 /* /string/..$ -> / */
1073 if (len >= 3) {
1074 if (!strcmp(&path[len - 3], "/..")) {
1075 char *tmp = &path[len - 3];
1076 while (*--tmp != '/')
1077 ;
1078 *tmp = '\0';
1079 }
1080 }
1081
1082 return 0;
1083 }
1084
1085 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)
1086 {
1087 struct nfs_cb_data *data;
1088
1089 if (path[0] == '\0') {
1090 path = ".";
1091 }
1092
1093 data = malloc(sizeof(struct nfs_cb_data));
1094 if (data == NULL) {
1095 rpc_set_error(nfs->rpc, "out of memory: failed to allocate "
1096 "nfs_cb_data structure");
1097 if (free_continue_data)
1098 free_continue_data(continue_data);
1099 return -1;
1100 }
1101 memset(data, 0, sizeof(struct nfs_cb_data));
1102 data->nfs = nfs;
1103 data->cb = cb;
1104 data->continue_cb = continue_cb;
1105 data->continue_data = continue_data;
1106 data->free_continue_data = free_continue_data;
1107 data->continue_int = continue_int;
1108 data->private_data = private_data;
1109 if (path[0] == '/') {
1110 data->saved_path = strdup(path);
1111 } else {
1112 data->saved_path = malloc(strlen(path) + strlen(nfs->cwd) + 2);
1113 if (data->saved_path == NULL) {
1114 rpc_set_error(nfs->rpc, "out of memory: failed to "
1115 "malloc path string");
1116 free_nfs_cb_data(data);
1117 return -1;
1118 }
1119 sprintf(data->saved_path, "%s/%s", nfs->cwd, path);
1120 }
1121
1122 if (data->saved_path == NULL) {
1123 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
1124 free_nfs_cb_data(data);
1125 return -1;
1126 }
1127 if (nfs_normalize_path(nfs, data->saved_path) != 0) {
1128 free_nfs_cb_data(data);
1129 return -1;
1130 }
1131
1132 data->path = data->saved_path;
1133
1134 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
1135 /* return 0 here since the callback will be invoked if there is a failure */
1136 return 0;
1137 }
1138 return 0;
1139 }
1140
1141
1142
1143
1144
1145 /*
1146 * Async stat()
1147 */
1148 static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1149 {
1150 GETATTR3res *res;
1151 struct nfs_cb_data *data = private_data;
1152 struct nfs_context *nfs = data->nfs;
1153 #ifdef WIN32
1154 struct __stat64 st;
1155 #else
1156 struct stat st;
1157 #endif
1158
1159 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1160
1161 if (status == RPC_STATUS_ERROR) {
1162 data->cb(-EFAULT, nfs, command_data, data->private_data);
1163 free_nfs_cb_data(data);
1164 return;
1165 }
1166 if (status == RPC_STATUS_CANCEL) {
1167 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1168 free_nfs_cb_data(data);
1169 return;
1170 }
1171
1172 res = command_data;
1173 if (res->status != NFS3_OK) {
1174 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));
1175 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1176 free_nfs_cb_data(data);
1177 return;
1178 }
1179
1180 st.st_dev = -1;
1181 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1182 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
1183 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
1184 st.st_mode |= S_IFDIR ;
1185 }
1186 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
1187 st.st_mode |= S_IFREG ;
1188 }
1189 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1190 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1191 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1192 st.st_rdev = 0;
1193 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
1194 #ifndef WIN32
1195 st.st_blksize = 4096;
1196 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
1197 #endif//WIN32
1198 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1199 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1200 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1201
1202 data->cb(0, nfs, &st, data->private_data);
1203 free_nfs_cb_data(data);
1204 }
1205
1206 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1207 {
1208 struct GETATTR3args args;
1209
1210 memset(&args, 0, sizeof(GETATTR3args));
1211 args.object = data->fh;
1212
1213 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
1214 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1215 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1216 free_nfs_cb_data(data);
1217 return -1;
1218 }
1219 return 0;
1220 }
1221
1222 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1223 {
1224 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
1225 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1226 return -1;
1227 }
1228
1229 return 0;
1230 }
1231
1232
1233 /*
1234 * Async nfs_stat64()
1235 */
1236 static void nfs_stat64_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1237 {
1238 GETATTR3res *res;
1239 struct nfs_cb_data *data = private_data;
1240 struct nfs_context *nfs = data->nfs;
1241 struct nfs_stat_64 st;
1242
1243 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1244
1245 if (status == RPC_STATUS_ERROR) {
1246 data->cb(-EFAULT, nfs, command_data, data->private_data);
1247 free_nfs_cb_data(data);
1248 return;
1249 }
1250 if (status == RPC_STATUS_CANCEL) {
1251 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1252 free_nfs_cb_data(data);
1253 return;
1254 }
1255
1256 res = command_data;
1257 if (res->status != NFS3_OK) {
1258 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));
1259 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1260 free_nfs_cb_data(data);
1261 return;
1262 }
1263
1264 st.nfs_dev = -1;
1265 st.nfs_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1266 st.nfs_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
1267 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
1268 st.nfs_mode |= S_IFDIR ;
1269 }
1270 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
1271 st.nfs_mode |= S_IFREG ;
1272 }
1273 st.nfs_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1274 st.nfs_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1275 st.nfs_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1276 st.nfs_rdev = 0;
1277 st.nfs_size = res->GETATTR3res_u.resok.obj_attributes.size;
1278 st.nfs_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1279 st.nfs_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1280 st.nfs_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1281
1282 data->cb(0, nfs, &st, data->private_data);
1283 free_nfs_cb_data(data);
1284 }
1285
1286 static int nfs_stat64_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1287 {
1288 struct GETATTR3args args;
1289
1290 memset(&args, 0, sizeof(GETATTR3args));
1291 args.object = data->fh;
1292
1293 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat64_1_cb, &args, data) != 0) {
1294 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1295 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1296 free_nfs_cb_data(data);
1297 return -1;
1298 }
1299 return 0;
1300 }
1301
1302 int nfs_stat64_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1303 {
1304 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat64_continue_internal, NULL, NULL, 0) != 0) {
1305 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1306 return -1;
1307 }
1308
1309 return 0;
1310 }
1311
1312 /*
1313 * Async open()
1314 */
1315 static void nfs_open_trunc_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1316 {
1317 struct nfs_cb_data *data = private_data;
1318 struct nfs_context *nfs = data->nfs;
1319 struct nfsfh *nfsfh;
1320 SETATTR3res *res;
1321
1322 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1323
1324 if (status == RPC_STATUS_ERROR) {
1325 data->cb(-EFAULT, nfs, command_data, data->private_data);
1326 free_nfs_cb_data(data);
1327 return;
1328 }
1329 if (status == RPC_STATUS_CANCEL) {
1330 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1331 free_nfs_cb_data(data);
1332 return;
1333 }
1334
1335 res = command_data;
1336 if (res->status != NFS3_OK) {
1337 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1338 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1339 free_nfs_cb_data(data);
1340 return;
1341 }
1342
1343 nfsfh = malloc(sizeof(struct nfsfh));
1344 if (nfsfh == NULL) {
1345 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1346 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1347 free_nfs_cb_data(data);
1348 return;
1349 }
1350 memset(nfsfh, 0, sizeof(struct nfsfh));
1351
1352 if (data->continue_int & O_SYNC) {
1353 nfsfh->is_sync = 1;
1354 }
1355
1356 /* steal the filehandle */
1357 nfsfh->fh = data->fh;
1358 data->fh.data.data_val = NULL;
1359
1360 data->cb(0, nfs, nfsfh, data->private_data);
1361 free_nfs_cb_data(data);
1362 }
1363
1364 static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1365 {
1366 ACCESS3res *res;
1367 struct nfs_cb_data *data = private_data;
1368 struct nfs_context *nfs = data->nfs;
1369 struct nfsfh *nfsfh;
1370 unsigned int nfsmode = 0;
1371
1372 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1373
1374 if (status == RPC_STATUS_ERROR) {
1375 data->cb(-EFAULT, nfs, command_data, data->private_data);
1376 free_nfs_cb_data(data);
1377 return;
1378 }
1379 if (status == RPC_STATUS_CANCEL) {
1380 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1381 free_nfs_cb_data(data);
1382 return;
1383 }
1384
1385 res = command_data;
1386 if (res->status != NFS3_OK) {
1387 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));
1388 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1389 free_nfs_cb_data(data);
1390 return;
1391 }
1392
1393 if (data->continue_int & O_WRONLY) {
1394 nfsmode |= ACCESS3_MODIFY;
1395 }
1396 if (data->continue_int & O_RDWR) {
1397 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1398 }
1399 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1400 nfsmode |= ACCESS3_READ;
1401 }
1402
1403
1404 if (res->ACCESS3res_u.resok.access != nfsmode) {
1405 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
1406 nfsmode&ACCESS3_READ?'r':'-',
1407 nfsmode&ACCESS3_MODIFY?'w':'-',
1408 nfsmode&ACCESS3_EXECUTE?'x':'-',
1409 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
1410 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
1411 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
1412 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
1413 free_nfs_cb_data(data);
1414 return;
1415 }
1416
1417 /* Try to truncate it if we were requested to */
1418 if ((data->continue_int & O_TRUNC) &&
1419 (data->continue_int & (O_RDWR|O_WRONLY))) {
1420 SETATTR3args args;
1421
1422 memset(&args, 0, sizeof(SETATTR3args));
1423 args.object = data->fh;
1424 args.new_attributes.size.set_it = 1;
1425 args.new_attributes.size.set_size3_u.size = 0;
1426
1427 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_open_trunc_cb, &args,
1428 data) != 0) {
1429 rpc_set_error(nfs->rpc, "RPC error: Failed to send "
1430 "SETATTR call for %s", data->path);
1431 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
1432 data->private_data);
1433 free_nfs_cb_data(data);
1434 return;
1435 }
1436 return;
1437 }
1438
1439 nfsfh = malloc(sizeof(struct nfsfh));
1440 if (nfsfh == NULL) {
1441 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1442 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1443 free_nfs_cb_data(data);
1444 return;
1445 }
1446 memset(nfsfh, 0, sizeof(struct nfsfh));
1447
1448 if (data->continue_int & O_SYNC) {
1449 nfsfh->is_sync = 1;
1450 }
1451
1452 /* steal the filehandle */
1453 nfsfh->fh = data->fh;
1454 data->fh.data.data_val = NULL;
1455
1456 data->cb(0, nfs, nfsfh, data->private_data);
1457 free_nfs_cb_data(data);
1458 }
1459
1460 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1461 {
1462 int nfsmode = 0;
1463 ACCESS3args args;
1464
1465 if (data->continue_int & O_WRONLY) {
1466 nfsmode |= ACCESS3_MODIFY;
1467 }
1468 if (data->continue_int & O_RDWR) {
1469 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1470 }
1471 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1472 nfsmode |= ACCESS3_READ;
1473 }
1474
1475 memset(&args, 0, sizeof(ACCESS3args));
1476 args.object = data->fh;
1477 args.access = nfsmode;
1478
1479 if (rpc_nfs3_access_async(nfs->rpc, nfs_open_cb, &args, data) != 0) {
1480 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS "
1481 "call for %s", data->path);
1482 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
1483 data->private_data);
1484 free_nfs_cb_data(data);
1485 return -1;
1486 }
1487 return 0;
1488 }
1489
1490 int nfs_open_async(struct nfs_context *nfs, const char *path, int flags, nfs_cb cb, void *private_data)
1491 {
1492 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, flags) != 0) {
1493 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1494 return -1;
1495 }
1496
1497 return 0;
1498 }
1499
1500
1501 /*
1502 * Async chdir()
1503 */
1504 static int nfs_chdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1505 {
1506 /* steal saved_path */
1507 free(nfs->cwd);
1508 nfs->cwd = data->saved_path;
1509 data->saved_path = NULL;
1510
1511 data->cb(0, nfs, NULL, data->private_data);
1512 free_nfs_cb_data(data);
1513
1514 return 0;
1515 }
1516
1517 int nfs_chdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1518 {
1519 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chdir_continue_internal, NULL, NULL, 0) != 0) {
1520 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1521 return -1;
1522 }
1523
1524 return 0;
1525 }
1526
1527
1528 /*
1529 * Async pread()
1530 */
1531 static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1532 {
1533 struct nfs_cb_data *data = private_data;
1534 struct nfs_context *nfs = data->nfs;
1535 READ3res *res;
1536
1537 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1538
1539 if (status == RPC_STATUS_ERROR) {
1540 data->cb(-EFAULT, nfs, command_data, data->private_data);
1541 free_nfs_cb_data(data);
1542 return;
1543 }
1544 if (status == RPC_STATUS_CANCEL) {
1545 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1546 free_nfs_cb_data(data);
1547 return;
1548 }
1549
1550 res = command_data;
1551 if (res->status != NFS3_OK) {
1552 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1553 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1554 free_nfs_cb_data(data);
1555 return;
1556 }
1557
1558 data->nfsfh->offset += res->READ3res_u.resok.count;
1559 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
1560 free_nfs_cb_data(data);
1561 }
1562
1563 static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1564 {
1565 struct nfs_mcb_data *mdata = private_data;
1566 struct nfs_cb_data *data = mdata->data;
1567 struct nfs_context *nfs = data->nfs;
1568 READ3res *res;
1569
1570 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1571
1572 data->num_calls--;
1573
1574 if (status == RPC_STATUS_ERROR) {
1575 /* flag the failure but do not invoke callback until we have received all responses */
1576 data->error = 1;
1577 }
1578 if (status == RPC_STATUS_CANCEL) {
1579 /* flag the cancellation but do not invoke callback until we have received all responses */
1580 data->cancel = 1;
1581 }
1582
1583 /* reassemble the data into the buffer */
1584 if (status == RPC_STATUS_SUCCESS) {
1585 res = command_data;
1586 if (res->status != NFS3_OK) {
1587 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1588 data->error = 1;
1589 } else {
1590 if (res->READ3res_u.resok.count > 0) {
1591 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
1592 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
1593 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
1594 }
1595 }
1596 }
1597 }
1598
1599 if (data->num_calls > 0) {
1600 /* still waiting for more replies */
1601 free(mdata);
1602 return;
1603 }
1604
1605 if (data->error != 0) {
1606 data->cb(-EFAULT, nfs, command_data, data->private_data);
1607 free_nfs_cb_data(data);
1608 free(mdata);
1609 return;
1610 }
1611 if (data->cancel != 0) {
1612 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1613 free_nfs_cb_data(data);
1614 free(mdata);
1615 return;
1616 }
1617
1618 data->nfsfh->offset = data->max_offset;
1619 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
1620
1621 free_nfs_cb_data(data);
1622 free(mdata);
1623 }
1624
1625 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
1626 {
1627 struct nfs_cb_data *data;
1628
1629 data = malloc(sizeof(struct nfs_cb_data));
1630 if (data == NULL) {
1631 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1632 return -1;
1633 }
1634 memset(data, 0, sizeof(struct nfs_cb_data));
1635 data->nfs = nfs;
1636 data->cb = cb;
1637 data->private_data = private_data;
1638 data->nfsfh = nfsfh;
1639
1640 nfsfh->offset = offset;
1641
1642 if (count <= nfs_get_readmax(nfs)) {
1643 READ3args args;
1644
1645 memset(&args, 0, sizeof(READ3args));
1646 args.file = nfsfh->fh;
1647 args.offset = offset;
1648 args.count = count;
1649
1650 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_cb, &args, data) != 0) {
1651 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1652 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1653 free_nfs_cb_data(data);
1654 return -1;
1655 }
1656 return 0;
1657 }
1658
1659 assert(count > 0);
1660 assert(data->num_calls == 0);
1661
1662 /* trying to read more than maximum server read size, we has to chop it up into smaller
1663 * reads and collect into a reassembly buffer.
1664 * we send all reads in parallel so that performance is still good.
1665 */
1666 data->max_offset = offset;
1667 data->start_offset = offset;
1668
1669 data->buffer = malloc(count);
1670 if (data->buffer == NULL) {
1671 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
1672 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1673 free_nfs_cb_data(data);
1674 return -1;
1675 }
1676
1677 while (count > 0) {
1678 uint64_t readcount = count;
1679 struct nfs_mcb_data *mdata;
1680 READ3args args;
1681
1682 if (readcount > nfs_get_readmax(nfs)) {
1683 readcount = nfs_get_readmax(nfs);
1684 }
1685
1686 mdata = malloc(sizeof(struct nfs_mcb_data));
1687 if (mdata == NULL) {
1688 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1689 if (data->num_calls == 0)
1690 free_nfs_cb_data(data);
1691 return -1;
1692 }
1693 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1694 mdata->data = data;
1695 mdata->offset = offset;
1696 mdata->count = readcount;
1697
1698 memset(&args, 0, sizeof(READ3args));
1699 args.file = nfsfh->fh;
1700 args.offset = offset;
1701 args.count = readcount;
1702
1703 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_mcb, &args, mdata) != 0) {
1704 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1705 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1706 free(mdata);
1707 if (data->num_calls == 0)
1708 free_nfs_cb_data(data);
1709 return -1;
1710 }
1711
1712 count -= readcount;
1713 offset += readcount;
1714 data->num_calls++;
1715 }
1716
1717 return 0;
1718 }
1719
1720 /*
1721 * Async read()
1722 */
1723 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
1724 {
1725 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
1726 }
1727
1728
1729
1730 /*
1731 * Async pwrite()
1732 */
1733 static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1734 {
1735 struct nfs_cb_data *data = private_data;
1736 struct nfs_context *nfs = data->nfs;
1737 WRITE3res *res;
1738
1739 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1740
1741 if (status == RPC_STATUS_ERROR) {
1742 data->cb(-EFAULT, nfs, command_data, data->private_data);
1743 free_nfs_cb_data(data);
1744 return;
1745 }
1746 if (status == RPC_STATUS_CANCEL) {
1747 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1748 free_nfs_cb_data(data);
1749 return;
1750 }
1751
1752 res = command_data;
1753 if (res->status != NFS3_OK) {
1754 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1755 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1756 free_nfs_cb_data(data);
1757 return;
1758 }
1759
1760 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1761 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1762 free_nfs_cb_data(data);
1763 }
1764
1765 static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1766 {
1767 struct nfs_mcb_data *mdata = private_data;
1768 struct nfs_cb_data *data = mdata->data;
1769 struct nfs_context *nfs = data->nfs;
1770 WRITE3res *res;
1771
1772 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1773
1774 data->num_calls--;
1775
1776 if (status == RPC_STATUS_ERROR) {
1777 /* flag the failure but do not invoke callback until we have received all responses */
1778 data->error = 1;
1779 }
1780 if (status == RPC_STATUS_CANCEL) {
1781 /* flag the cancellation but do not invoke callback until we have received all responses */
1782 data->cancel = 1;
1783 }
1784
1785 if (status == RPC_STATUS_SUCCESS) {
1786 res = command_data;
1787 if (res->status != NFS3_OK) {
1788 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1789 data->error = 1;
1790 } else {
1791 if (res->WRITE3res_u.resok.count > 0) {
1792 if ((unsigned)data->max_offset < mdata->offset + res->WRITE3res_u.resok.count) {
1793 data->max_offset = mdata->offset + res->WRITE3res_u.resok.count;
1794 }
1795 }
1796 }
1797 }
1798
1799 if (data->num_calls > 0) {
1800 /* still waiting for more replies */
1801 free(mdata);
1802 return;
1803 }
1804
1805 if (data->error != 0) {
1806 data->cb(-EFAULT, nfs, command_data, data->private_data);
1807 free_nfs_cb_data(data);
1808 free(mdata);
1809 return;
1810 }
1811 if (data->cancel != 0) {
1812 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1813 free_nfs_cb_data(data);
1814 free(mdata);
1815 return;
1816 }
1817
1818 data->nfsfh->offset = data->max_offset;
1819 data->cb(data->max_offset - data->start_offset, nfs, NULL, data->private_data);
1820
1821 free_nfs_cb_data(data);
1822 free(mdata);
1823 }
1824
1825
1826 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)
1827 {
1828 struct nfs_cb_data *data;
1829
1830 data = malloc(sizeof(struct nfs_cb_data));
1831 if (data == NULL) {
1832 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1833 return -1;
1834 }
1835 memset(data, 0, sizeof(struct nfs_cb_data));
1836 data->nfs = nfs;
1837 data->cb = cb;
1838 data->private_data = private_data;
1839 data->nfsfh = nfsfh;
1840
1841 nfsfh->offset = offset;
1842
1843 if (count <= nfs_get_writemax(nfs)) {
1844 WRITE3args args;
1845
1846 memset(&args, 0, sizeof(WRITE3args));
1847 args.file = nfsfh->fh;
1848 args.offset = offset;
1849 args.count = count;
1850 args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
1851 args.data.data_len = count;
1852 args.data.data_val = buf;
1853
1854 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_cb, &args, data) != 0) {
1855 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1856 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1857 free_nfs_cb_data(data);
1858 return -1;
1859 }
1860 return 0;
1861 }
1862
1863 /* hello, clang-analyzer */
1864 assert(count > 0);
1865 assert(data->num_calls == 0);
1866
1867 /* trying to write more than maximum server write size, we has to chop it up into smaller
1868 * chunks.
1869 * we send all writes in parallel so that performance is still good.
1870 */
1871 data->max_offset = offset;
1872 data->start_offset = offset;
1873
1874 while (count > 0) {
1875 uint64_t writecount = count;
1876 struct nfs_mcb_data *mdata;
1877 WRITE3args args;
1878
1879 if (writecount > nfs_get_writemax(nfs)) {
1880 writecount = nfs_get_writemax(nfs);
1881 }
1882
1883 mdata = malloc(sizeof(struct nfs_mcb_data));
1884 if (mdata == NULL) {
1885 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1886 if (data->num_calls == 0)
1887 free_nfs_cb_data(data);
1888 return -1;
1889 }
1890 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1891 mdata->data = data;
1892 mdata->offset = offset;
1893 mdata->count = writecount;
1894
1895 memset(&args, 0, sizeof(WRITE3args));
1896 args.file = nfsfh->fh;
1897 args.offset = offset;
1898 args.count = writecount;
1899 args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
1900 args.data.data_len = writecount;
1901 args.data.data_val = &buf[offset - data->start_offset];
1902
1903 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_mcb, &args, mdata) != 0) {
1904 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1905 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1906 free(mdata);
1907 if (data->num_calls == 0)
1908 free_nfs_cb_data(data);
1909
1910 return -1;
1911 }
1912
1913 count -= writecount;
1914 offset += writecount;
1915 data->num_calls++;
1916 }
1917
1918 return 0;
1919 }
1920
1921 /*
1922 * Async write()
1923 */
1924 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1925 {
1926 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1927 }
1928
1929
1930
1931
1932 /*
1933 * close
1934 */
1935
1936 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1937 {
1938 if (nfsfh->fh.data.data_val != NULL){
1939 free(nfsfh->fh.data.data_val);
1940 nfsfh->fh.data.data_val = NULL;
1941 }
1942 free(nfsfh);
1943
1944 cb(0, nfs, NULL, private_data);
1945 return 0;
1946 };
1947
1948
1949
1950
1951
1952 /*
1953 * Async fstat()
1954 */
1955 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1956 {
1957 struct nfs_cb_data *data;
1958 struct GETATTR3args args;
1959
1960 data = malloc(sizeof(struct nfs_cb_data));
1961 if (data == NULL) {
1962 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1963 return -1;
1964 }
1965 memset(data, 0, sizeof(struct nfs_cb_data));
1966 data->nfs = nfs;
1967 data->cb = cb;
1968 data->private_data = private_data;
1969
1970 memset(&args, 0, sizeof(GETATTR3args));
1971 args.object = nfsfh->fh;
1972
1973 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
1974 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1975 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1976 free_nfs_cb_data(data);
1977 return -1;
1978 }
1979 return 0;
1980 }
1981
1982
1983
1984 /*
1985 * Async fsync()
1986 */
1987 static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1988 {
1989 struct nfs_cb_data *data = private_data;
1990 struct nfs_context *nfs = data->nfs;
1991 COMMIT3res *res;
1992
1993 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1994
1995 if (status == RPC_STATUS_ERROR) {
1996 data->cb(-EFAULT, nfs, command_data, data->private_data);
1997 free_nfs_cb_data(data);
1998 return;
1999 }
2000 if (status == RPC_STATUS_CANCEL) {
2001 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2002 free_nfs_cb_data(data);
2003 return;
2004 }
2005
2006 res = command_data;
2007 if (res->status != NFS3_OK) {
2008 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", 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 data->cb(0, nfs, NULL, data->private_data);
2015 free_nfs_cb_data(data);
2016 }
2017
2018 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
2019 {
2020 struct nfs_cb_data *data;
2021 struct COMMIT3args args;
2022
2023 data = malloc(sizeof(struct nfs_cb_data));
2024 if (data == NULL) {
2025 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2026 return -1;
2027 }
2028 memset(data, 0, sizeof(struct nfs_cb_data));
2029 data->nfs = nfs;
2030 data->cb = cb;
2031 data->private_data = private_data;
2032
2033 args.file = nfsfh->fh;
2034 args.offset = 0;
2035 args.count = 0;
2036 if (rpc_nfs3_commit_async(nfs->rpc, nfs_fsync_cb, &args, data) != 0) {
2037 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
2038 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2039 free_nfs_cb_data(data);
2040 return -1;
2041 }
2042 return 0;
2043 }
2044
2045
2046
2047
2048 /*
2049 * Async ftruncate()
2050 */
2051 static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2052 {
2053 struct nfs_cb_data *data = private_data;
2054 struct nfs_context *nfs = data->nfs;
2055 SETATTR3res *res;
2056
2057 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2058
2059 if (status == RPC_STATUS_ERROR) {
2060 data->cb(-EFAULT, nfs, command_data, data->private_data);
2061 free_nfs_cb_data(data);
2062 return;
2063 }
2064 if (status == RPC_STATUS_CANCEL) {
2065 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2066 free_nfs_cb_data(data);
2067 return;
2068 }
2069
2070 res = command_data;
2071 if (res->status != NFS3_OK) {
2072 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2073 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2074 free_nfs_cb_data(data);
2075 return;
2076 }
2077
2078 data->cb(0, nfs, NULL, data->private_data);
2079 free_nfs_cb_data(data);
2080 }
2081
2082 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
2083 {
2084 struct nfs_cb_data *data;
2085 SETATTR3args args;
2086
2087 data = malloc(sizeof(struct nfs_cb_data));
2088 if (data == NULL) {
2089 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2090 return -1;
2091 }
2092 memset(data, 0, sizeof(struct nfs_cb_data));
2093 data->nfs = nfs;
2094 data->cb = cb;
2095 data->private_data = private_data;
2096
2097 memset(&args, 0, sizeof(SETATTR3args));
2098 args.object = nfsfh->fh;
2099 args.new_attributes.size.set_it = 1;
2100 args.new_attributes.size.set_size3_u.size = length;
2101
2102 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
2103 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2104 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2105 free_nfs_cb_data(data);
2106 return -1;
2107 }
2108 return 0;
2109 }
2110
2111
2112 /*
2113 * Async truncate()
2114 */
2115 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2116 {
2117 uint64_t offset = data->continue_int;
2118 struct nfsfh nfsfh;
2119
2120 nfsfh.fh = data->fh;
2121
2122 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
2123 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2124 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2125 free_nfs_cb_data(data);
2126 return -1;
2127 }
2128 free_nfs_cb_data(data);
2129 return 0;
2130 }
2131
2132 int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
2133 {
2134 uint64_t offset;
2135
2136 offset = length;
2137
2138 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
2139 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2140 return -1;
2141 }
2142
2143 return 0;
2144 }
2145
2146
2147
2148
2149 /*
2150 * Async mkdir()
2151 */
2152 static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2153 {
2154 MKDIR3res *res;
2155 struct nfs_cb_data *data = private_data;
2156 struct nfs_context *nfs = data->nfs;
2157 char *str = data->continue_data;
2158
2159 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2160
2161 str = &str[strlen(str) + 1];
2162
2163 if (status == RPC_STATUS_ERROR) {
2164 data->cb(-EFAULT, nfs, command_data, data->private_data);
2165 free_nfs_cb_data(data);
2166 return;
2167 }
2168 if (status == RPC_STATUS_CANCEL) {
2169 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2170 free_nfs_cb_data(data);
2171 return;
2172 }
2173
2174 res = command_data;
2175 if (res->status != NFS3_OK) {
2176 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));
2177 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2178 free_nfs_cb_data(data);
2179 return;
2180 }
2181
2182 data->cb(0, nfs, NULL, data->private_data);
2183 free_nfs_cb_data(data);
2184 }
2185
2186 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2187 {
2188 char *str = data->continue_data;
2189 MKDIR3args args;
2190
2191 str = &str[strlen(str) + 1];
2192
2193 memset(&args, 0, sizeof(MKDIR3args));
2194 args.where.dir = data->fh;
2195 args.where.name = str;
2196 args.attributes.mode.set_it = 1;
2197 args.attributes.mode.set_mode3_u.mode = 0755;
2198
2199 if (rpc_nfs3_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
2200 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
2201 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2202 free_nfs_cb_data(data);
2203 return -1;
2204 }
2205 return 0;
2206 }
2207
2208 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2209 {
2210 char *new_path;
2211 char *ptr;
2212
2213 new_path = strdup(path);
2214 if (new_path == NULL) {
2215 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2216 return -1;
2217 }
2218
2219 ptr = strrchr(new_path, '/');
2220 if (ptr == NULL) {
2221 free(new_path);
2222 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2223 return -1;
2224 }
2225 *ptr = 0;
2226
2227 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2228 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
2229 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
2230 return -1;
2231 }
2232
2233 return 0;
2234 }
2235
2236
2237
2238
2239
2240 /*
2241 * Async rmdir()
2242 */
2243 static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2244 {
2245 RMDIR3res *res;
2246 struct nfs_cb_data *data = private_data;
2247 struct nfs_context *nfs = data->nfs;
2248 char *str = data->continue_data;
2249
2250 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2251
2252 str = &str[strlen(str) + 1];
2253
2254 if (status == RPC_STATUS_ERROR) {
2255 data->cb(-EFAULT, nfs, command_data, data->private_data);
2256 free_nfs_cb_data(data);
2257 return;
2258 }
2259 if (status == RPC_STATUS_CANCEL) {
2260 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2261 free_nfs_cb_data(data);
2262 return;
2263 }
2264
2265 res = command_data;
2266 if (res->status != NFS3_OK) {
2267 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));
2268 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2269 free_nfs_cb_data(data);
2270 return;
2271 }
2272
2273 data->cb(0, nfs, NULL, data->private_data);
2274 free_nfs_cb_data(data);
2275 }
2276
2277 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2278 {
2279 char *str = data->continue_data;
2280 RMDIR3args args;
2281
2282 str = &str[strlen(str) + 1];
2283
2284 args.object.dir = data->fh;
2285 args.object.name = str;
2286 if (rpc_nfs3_rmdir_async(nfs->rpc, nfs_rmdir_cb, &args, data) != 0) {
2287 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
2288 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2289 free_nfs_cb_data(data);
2290 return -1;
2291 }
2292 return 0;
2293 }
2294
2295 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2296 {
2297 char *new_path;
2298 char *ptr;
2299
2300 new_path = strdup(path);
2301 if (new_path == NULL) {
2302 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2303 return -1;
2304 }
2305
2306 ptr = strrchr(new_path, '/');
2307 if (ptr == NULL) {
2308 free(new_path);
2309 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2310 return -1;
2311 }
2312 *ptr = 0;
2313
2314 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2315 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
2316 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2317 return -1;
2318 }
2319
2320 return 0;
2321 }
2322
2323
2324
2325
2326 /*
2327 * Async creat()
2328 */
2329 static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2330 {
2331 LOOKUP3res *res;
2332 struct nfs_cb_data *data = private_data;
2333 struct nfs_context *nfs = data->nfs;
2334 struct nfsfh *nfsfh;
2335 char *str = data->continue_data;
2336
2337 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2338
2339 if (status == RPC_STATUS_ERROR) {
2340 data->cb(-EFAULT, nfs, command_data, data->private_data);
2341 free_nfs_cb_data(data);
2342 return;
2343 }
2344 if (status == RPC_STATUS_CANCEL) {
2345 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2346 free_nfs_cb_data(data);
2347 return;
2348 }
2349
2350 str = &str[strlen(str) + 1];
2351 res = command_data;
2352 if (res->status != NFS3_OK) {
2353 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));
2354 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2355
2356 return;
2357 }
2358
2359 nfsfh = malloc(sizeof(struct nfsfh));
2360 if (nfsfh == NULL) {
2361 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
2362 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2363 free_nfs_cb_data(data);
2364 return;
2365 }
2366 memset(nfsfh, 0, sizeof(struct nfsfh));
2367
2368 /* copy the filehandle */
2369 nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
2370 nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
2371 memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
2372
2373 data->cb(0, nfs, nfsfh, data->private_data);
2374 free_nfs_cb_data(data);
2375 }
2376
2377
2378
2379 static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2380 {
2381 CREATE3res *res;
2382 struct nfs_cb_data *data = private_data;
2383 struct nfs_context *nfs = data->nfs;
2384 char *str = data->continue_data;
2385 LOOKUP3args args;
2386
2387 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2388
2389 if (status == RPC_STATUS_ERROR) {
2390 data->cb(-EFAULT, nfs, command_data, data->private_data);
2391 free_nfs_cb_data(data);
2392 return;
2393 }
2394 if (status == RPC_STATUS_CANCEL) {
2395 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2396 free_nfs_cb_data(data);
2397 return;
2398 }
2399
2400 str = &str[strlen(str) + 1];
2401 res = command_data;
2402 if (res->status != NFS3_OK) {
2403 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));
2404 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2405 free_nfs_cb_data(data);
2406 return;
2407 }
2408
2409 memset(&args, 0, sizeof(LOOKUP3args));
2410 args.what.dir = data->fh;
2411 args.what.name = str;
2412
2413 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_create_2_cb, &args, data) != 0) {
2414 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
2415 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2416 free_nfs_cb_data(data);
2417 return;
2418 }
2419 return;
2420 }
2421
2422 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2423 {
2424 char *str = data->continue_data;
2425 CREATE3args args;
2426
2427 str = &str[strlen(str) + 1];
2428
2429 memset(&args, 0, sizeof(CREATE3args));
2430 args.where.dir = data->fh;
2431 args.where.name = str;
2432 args.how.mode = UNCHECKED;
2433 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
2434 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
2435
2436 if (rpc_nfs3_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
2437 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
2438 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2439 free_nfs_cb_data(data);
2440 return -1;
2441 }
2442 return 0;
2443 }
2444
2445 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2446 {
2447 char *new_path;
2448 char *ptr;
2449
2450 new_path = strdup(path);
2451 if (new_path == NULL) {
2452 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2453 return -1;
2454 }
2455
2456 ptr = strrchr(new_path, '/');
2457 if (ptr == NULL) {
2458 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2459 free(new_path);
2460 return -1;
2461 }
2462 *ptr = 0;
2463
2464 /* new_path now points to the parent directory, and beyond the nul terminator is the new directory to create */
2465 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
2466 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2467 return -1;
2468 }
2469
2470 return 0;
2471 }
2472
2473
2474
2475
2476 /*
2477 * Async unlink()
2478 */
2479 static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2480 {
2481 REMOVE3res *res;
2482 struct nfs_cb_data *data = private_data;
2483 struct nfs_context *nfs = data->nfs;
2484 char *str = data->continue_data;
2485
2486 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2487
2488 str = &str[strlen(str) + 1];
2489
2490 if (status == RPC_STATUS_ERROR) {
2491 data->cb(-EFAULT, nfs, command_data, data->private_data);
2492 free_nfs_cb_data(data);
2493 return;
2494 }
2495 if (status == RPC_STATUS_CANCEL) {
2496 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2497 free_nfs_cb_data(data);
2498 return;
2499 }
2500
2501 res = command_data;
2502 if (res->status != NFS3_OK) {
2503 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));
2504 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2505 free_nfs_cb_data(data);
2506 return;
2507 }
2508
2509 data->cb(0, nfs, NULL, data->private_data);
2510 free_nfs_cb_data(data);
2511 }
2512
2513 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2514 {
2515 char *str = data->continue_data;
2516 struct REMOVE3args args;
2517
2518 str = &str[strlen(str) + 1];
2519
2520 args.object.dir = data->fh;
2521 args.object.name = str;
2522 if (rpc_nfs3_remove_async(nfs->rpc, nfs_unlink_cb, &args, data) != 0) {
2523 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
2524 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2525 free_nfs_cb_data(data);
2526 return -1;
2527 }
2528 return 0;
2529 }
2530
2531 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2532 {
2533 char *new_path;
2534 char *ptr;
2535
2536 new_path = strdup(path);
2537 if (new_path == NULL) {
2538 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2539 return -1;
2540 }
2541
2542 ptr = strrchr(new_path, '/');
2543 if (ptr == NULL) {
2544 free(new_path);
2545 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2546 return -1;
2547 }
2548 *ptr = 0;
2549
2550 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2551 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
2552 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2553 return -1;
2554 }
2555
2556 return 0;
2557 }
2558
2559
2560 /*
2561 * Async mknod()
2562 */
2563 struct mknod_cb_data {
2564 char *path;
2565 int mode;
2566 int major;
2567 int minor;
2568 };
2569
2570 static void free_mknod_cb_data(void *ptr)
2571 {
2572 struct mknod_cb_data *data = ptr;
2573
2574 free(data->path);
2575 free(data);
2576 }
2577
2578 static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2579 {
2580 MKNOD3res *res;
2581 struct nfs_cb_data *data = private_data;
2582 struct nfs_context *nfs = data->nfs;
2583 char *str = data->continue_data;
2584
2585 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2586
2587 str = &str[strlen(str) + 1];
2588
2589 if (status == RPC_STATUS_ERROR) {
2590 data->cb(-EFAULT, nfs, command_data, data->private_data);
2591 free_nfs_cb_data(data);
2592 return;
2593 }
2594 if (status == RPC_STATUS_CANCEL) {
2595 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2596 free_nfs_cb_data(data);
2597 return;
2598 }
2599
2600 res = command_data;
2601 if (res->status != NFS3_OK) {
2602 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));
2603 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2604 free_nfs_cb_data(data);
2605 return;
2606 }
2607
2608 data->cb(0, nfs, NULL, data->private_data);
2609 free_nfs_cb_data(data);
2610 }
2611
2612 static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2613 {
2614 struct mknod_cb_data *cb_data = data->continue_data;
2615 char *str = cb_data->path;
2616 MKNOD3args args;
2617
2618 str = &str[strlen(str) + 1];
2619
2620 args.where.dir = data->fh;
2621 args.where.name = str;
2622 switch (cb_data->mode & S_IFMT) {
2623 case S_IFCHR:
2624 args.what.type = NF3CHR;
2625 args.what.mknoddata3_u.chr_device.dev_attributes.mode.set_it = 1;
2626 args.what.mknoddata3_u.chr_device.dev_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2627 args.what.mknoddata3_u.chr_device.spec.specdata1 = cb_data->major;
2628 args.what.mknoddata3_u.chr_device.spec.specdata2 = cb_data->minor;
2629 break;
2630 case S_IFBLK:
2631 args.what.type = NF3BLK;
2632 args.what.mknoddata3_u.blk_device.dev_attributes.mode.set_it = 1;
2633 args.what.mknoddata3_u.blk_device.dev_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2634 args.what.mknoddata3_u.blk_device.spec.specdata1 = cb_data->major;
2635 args.what.mknoddata3_u.blk_device.spec.specdata2 = cb_data->minor;
2636 case S_IFSOCK:
2637 args.what.type = NF3SOCK;
2638 args.what.mknoddata3_u.sock_attributes.mode.set_it = 1;
2639 args.what.mknoddata3_u.sock_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2640 break;
2641 case S_IFIFO:
2642 args.what.type = NF3FIFO;
2643 args.what.mknoddata3_u.pipe_attributes.mode.set_it = 1;
2644 args.what.mknoddata3_u.pipe_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2645 break;
2646 default:
2647 rpc_set_error(nfs->rpc, "Invalid file type for NFS3/MKNOD call");
2648 data->cb(-EINVAL, nfs, rpc_get_error(nfs->rpc), data->private_data);
2649 free_nfs_cb_data(data);
2650 return -1;
2651 }
2652
2653 if (rpc_nfs3_mknod_async(nfs->rpc, nfs_mknod_cb, &args, data) != 0) {
2654 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2655 free_nfs_cb_data(data);
2656 return -1;
2657 }
2658 return 0;
2659 }
2660
2661 int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
2662 {
2663 char *ptr;
2664 struct mknod_cb_data *cb_data;
2665
2666 cb_data = malloc(sizeof(struct mknod_cb_data));
2667 if (cb_data == NULL) {
2668 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
2669 return -1;
2670 }
2671
2672 cb_data->path = strdup(path);
2673 if (cb_data->path == NULL) {
2674 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2675 free(cb_data);
2676 return -1;
2677 }
2678
2679 ptr = strrchr(cb_data->path, '/');
2680 if (ptr == NULL) {
2681 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2682 free_mknod_cb_data(cb_data);
2683 return -1;
2684 }
2685 *ptr = 0;
2686
2687 cb_data->mode = mode;
2688 cb_data->major = major(dev);
2689 cb_data->minor = minor(dev);
2690
2691 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2692 if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
2693 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2694 return -1;
2695 }
2696
2697 return 0;
2698 }
2699
2700 /*
2701 * Async opendir()
2702 */
2703
2704 /* ReadDirPlus Emulation Callback data */
2705 struct rdpe_cb_data {
2706 int getattrcount;
2707 int status;
2708 struct nfs_cb_data *data;
2709 };
2710
2711 /* ReadDirPlus Emulation LOOKUP Callback data */
2712 struct rdpe_lookup_cb_data {
2713 struct rdpe_cb_data *rdpe_cb_data;
2714 struct nfsdirent *nfsdirent;
2715 };
2716
2717 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
2718 static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2719 {
2720 LOOKUP3res *res = command_data;
2721 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
2722 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
2723 struct nfs_cb_data *data = rdpe_cb_data->data;
2724 struct nfsdir *nfsdir = data->continue_data;
2725 struct nfs_context *nfs = data->nfs;
2726 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
2727
2728 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2729
2730 free(rdpe_lookup_cb_data);
2731
2732 rdpe_cb_data->getattrcount--;
2733
2734 if (status == RPC_STATUS_ERROR) {
2735 rdpe_cb_data->status = RPC_STATUS_ERROR;
2736 }
2737 if (status == RPC_STATUS_CANCEL) {
2738 rdpe_cb_data->status = RPC_STATUS_CANCEL;
2739 }
2740 if (status == RPC_STATUS_SUCCESS && res->status != NFS3_OK) {
2741 rdpe_cb_data->status = RPC_STATUS_ERROR;
2742 }
2743 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
2744 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
2745 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
2746
2747 nfsdirent->type = attributes->type;
2748 nfsdirent->mode = attributes->mode;
2749 nfsdirent->size = attributes->size;
2750
2751 nfsdirent->atime.tv_sec = attributes->atime.seconds;
2752 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
2753 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
2754 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
2755 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
2756 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
2757 nfsdirent->uid = attributes->uid;
2758 nfsdirent->gid = attributes->gid;
2759 }
2760 }
2761
2762 if (rdpe_cb_data->getattrcount == 0) {
2763 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
2764 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2765 nfs_free_nfsdir(nfsdir);
2766 } else {
2767 data->cb(0, nfs, nfsdir, data->private_data);
2768 }
2769 free(rdpe_cb_data);
2770
2771 data->continue_data = NULL;
2772 free_nfs_cb_data(data);
2773 }
2774 }
2775
2776 static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2777 {
2778 READDIR3res *res = command_data;
2779 struct nfs_cb_data *data = private_data;
2780 struct nfs_context *nfs = data->nfs;
2781 struct nfsdir *nfsdir = data->continue_data;
2782 struct nfsdirent *nfsdirent;
2783 struct entry3 *entry;
2784 uint64_t cookie = 0;
2785 struct rdpe_cb_data *rdpe_cb_data;
2786
2787 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2788
2789 if (status == RPC_STATUS_ERROR) {
2790 data->cb(-EFAULT, nfs, command_data, data->private_data);
2791 nfs_free_nfsdir(nfsdir);
2792 data->continue_data = NULL;
2793 free_nfs_cb_data(data);
2794 return;
2795 }
2796
2797 if (status == RPC_STATUS_CANCEL) {
2798 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2799 nfs_free_nfsdir(nfsdir);
2800 data->continue_data = NULL;
2801 free_nfs_cb_data(data);
2802 return;
2803 }
2804
2805 if (res->status != NFS3_OK) {
2806 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));
2807 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2808 nfs_free_nfsdir(nfsdir);
2809 data->continue_data = NULL;
2810 free_nfs_cb_data(data);
2811 return;
2812 }
2813
2814 entry =res->READDIR3res_u.resok.reply.entries;
2815 while (entry != NULL) {
2816 nfsdirent = malloc(sizeof(struct nfsdirent));
2817 if (nfsdirent == NULL) {
2818 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2819 nfs_free_nfsdir(nfsdir);
2820 data->continue_data = NULL;
2821 free_nfs_cb_data(data);
2822 return;
2823 }
2824 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2825 nfsdirent->name = strdup(entry->name);
2826 if (nfsdirent->name == NULL) {
2827 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2828 free(nfsdirent);
2829 nfs_free_nfsdir(nfsdir);
2830 data->continue_data = NULL;
2831 free_nfs_cb_data(data);
2832 return;
2833 }
2834 nfsdirent->inode = entry->fileid;
2835
2836 nfsdirent->next = nfsdir->entries;
2837 nfsdir->entries = nfsdirent;
2838
2839 cookie = entry->cookie;
2840 entry = entry->nextentry;
2841 }
2842
2843 if (res->READDIR3res_u.resok.reply.eof == 0) {
2844 READDIR3args args;
2845
2846 args.dir = data->fh;
2847 args.cookie = cookie;
2848 memcpy(&args.cookieverf, res->READDIR3res_u.resok.cookieverf, sizeof(cookieverf3));
2849 args.count = 8192;
2850
2851 if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
2852 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2853 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2854 nfs_free_nfsdir(nfsdir);
2855 data->continue_data = NULL;
2856 free_nfs_cb_data(data);
2857 return;
2858 }
2859 return;
2860 }
2861
2862 /* steal the dirhandle */
2863 nfsdir->current = nfsdir->entries;
2864
2865 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
2866 rdpe_cb_data->getattrcount = 0;
2867 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
2868 rdpe_cb_data->data = data;
2869 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
2870 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
2871 LOOKUP3args args;
2872
2873 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
2874 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
2875 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
2876
2877 memset(&args, 0, sizeof(LOOKUP3args));
2878 args.what.dir = data->fh;
2879 args.what.name = nfsdirent->name;
2880
2881 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_opendir3_cb, &args, rdpe_lookup_cb_data) != 0) {
2882 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
2883
2884 /* if we have already commands in flight, we cant just stop, we have to wait for the
2885 * commands in flight to complete
2886 */
2887 if (rdpe_cb_data->getattrcount > 0) {
2888 nfs_free_nfsdir(nfsdir);
2889 data->continue_data = NULL;
2890 free_nfs_cb_data(data);
2891 rdpe_cb_data->status = RPC_STATUS_ERROR;
2892 free(rdpe_lookup_cb_data);
2893 return;
2894 }
2895
2896 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2897 nfs_free_nfsdir(nfsdir);
2898 data->continue_data = NULL;
2899 free_nfs_cb_data(data);
2900 free(rdpe_lookup_cb_data);
2901 free(rdpe_cb_data);
2902 return;
2903 }
2904 rdpe_cb_data->getattrcount++;
2905 }
2906 }
2907
2908 static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2909 {
2910 READDIRPLUS3res *res = command_data;
2911 struct nfs_cb_data *data = private_data;
2912 struct nfs_context *nfs = data->nfs;
2913 struct nfsdir *nfsdir = data->continue_data;
2914 struct entryplus3 *entry;
2915 uint64_t cookie = 0;
2916
2917 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2918
2919 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
2920 READDIR3args args;
2921
2922 args.dir = data->fh;
2923 args.cookie = cookie;
2924 memset(&args.cookieverf, 0, sizeof(cookieverf3));
2925 args.count = 8192;
2926
2927 if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
2928 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2929 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2930 nfs_free_nfsdir(nfsdir);
2931 data->continue_data = NULL;
2932 free_nfs_cb_data(data);
2933 return;
2934 }
2935 return;
2936 }
2937
2938 if (status == RPC_STATUS_CANCEL) {
2939 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2940 nfs_free_nfsdir(nfsdir);
2941 data->continue_data = NULL;
2942 free_nfs_cb_data(data);
2943 return;
2944 }
2945
2946 if (res->status != NFS3_OK) {
2947 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));
2948 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2949 nfs_free_nfsdir(nfsdir);
2950 data->continue_data = NULL;
2951 free_nfs_cb_data(data);
2952 return;
2953 }
2954
2955 entry =res->READDIRPLUS3res_u.resok.reply.entries;
2956 while (entry != NULL) {
2957 struct nfsdirent *nfsdirent;
2958
2959 nfsdirent = malloc(sizeof(struct nfsdirent));
2960 if (nfsdirent == NULL) {
2961 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2962 nfs_free_nfsdir(nfsdir);
2963 data->continue_data = NULL;
2964 free_nfs_cb_data(data);
2965 return;
2966 }
2967 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2968 nfsdirent->name = strdup(entry->name);
2969 if (nfsdirent->name == NULL) {
2970 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2971 free(nfsdirent);
2972 nfs_free_nfsdir(nfsdir);
2973 data->continue_data = NULL;
2974 free_nfs_cb_data(data);
2975 return;
2976 }
2977 nfsdirent->inode = entry->fileid;
2978 if (entry->name_attributes.attributes_follow) {
2979 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
2980 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
2981 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
2982
2983 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
2984 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
2985 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
2986 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
2987 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
2988 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
2989 nfsdirent->uid = entry->name_attributes.post_op_attr_u.attributes.uid;
2990 nfsdirent->gid = entry->name_attributes.post_op_attr_u.attributes.gid;
2991 }
2992
2993 nfsdirent->next = nfsdir->entries;
2994 nfsdir->entries = nfsdirent;
2995
2996 cookie = entry->cookie;
2997 entry = entry->nextentry;
2998 }
2999
3000 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
3001 READDIRPLUS3args args;
3002
3003 args.dir = data->fh;
3004 args.cookie = cookie;
3005 memcpy(&args.cookieverf, res->READDIRPLUS3res_u.resok.cookieverf, sizeof(cookieverf3));
3006 args.dircount = 8192;
3007 args.maxcount = 8192;
3008
3009 if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
3010 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
3011 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3012 nfs_free_nfsdir(nfsdir);
3013 data->continue_data = NULL;
3014 free_nfs_cb_data(data);
3015 return;
3016 }
3017 return;
3018 }
3019
3020 /* steal the dirhandle */
3021 data->continue_data = NULL;
3022 nfsdir->current = nfsdir->entries;
3023
3024 data->cb(0, nfs, nfsdir, data->private_data);
3025 free_nfs_cb_data(data);
3026 }
3027
3028 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3029 {
3030 READDIRPLUS3args args;
3031
3032 args.dir = data->fh;
3033 args.cookie = 0;
3034 memset(&args.cookieverf, 0, sizeof(cookieverf3));
3035 args.dircount = 8192;
3036 args.maxcount = 8192;
3037 if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
3038 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
3039 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3040 free_nfs_cb_data(data);
3041 return -1;
3042 }
3043 return 0;
3044 }
3045
3046 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
3047 {
3048 struct nfsdir *nfsdir;
3049
3050 nfsdir = malloc(sizeof(struct nfsdir));
3051 if (nfsdir == NULL) {
3052 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
3053 return -1;
3054 }
3055 memset(nfsdir, 0, sizeof(struct nfsdir));
3056
3057 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
3058 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3059 return -1;
3060 }
3061
3062 return 0;
3063 }
3064
3065
3066 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
3067 {
3068 struct nfsdirent *nfsdirent = nfsdir->current;
3069
3070 if (nfsdir->current != NULL) {
3071 nfsdir->current = nfsdir->current->next;
3072 }
3073 return nfsdirent;
3074 }
3075
3076
3077 /*
3078 * closedir()
3079 */
3080 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
3081 {
3082 nfs_free_nfsdir(nfsdir);
3083 }
3084
3085
3086 /*
3087 * getcwd()
3088 */
3089 void nfs_getcwd(struct nfs_context *nfs, const char **cwd)
3090 {
3091 if (cwd) {
3092 *cwd = nfs->cwd;
3093 }
3094 }
3095
3096
3097 /*
3098 * Async lseek()
3099 */
3100 struct lseek_cb_data {
3101 struct nfs_context *nfs;
3102 struct nfsfh *nfsfh;
3103 uint64_t offset;
3104 nfs_cb cb;
3105 void *private_data;
3106 };
3107
3108 static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3109 {
3110 GETATTR3res *res;
3111 struct lseek_cb_data *data = private_data;
3112 struct nfs_context *nfs = data->nfs;
3113
3114 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3115
3116 if (status == RPC_STATUS_ERROR) {
3117 data->cb(-EFAULT, nfs, command_data, data->private_data);
3118 free(data);
3119 return;
3120 }
3121 if (status == RPC_STATUS_CANCEL) {
3122 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3123 free(data);
3124 return;
3125 }
3126
3127 res = command_data;
3128 if (res->status != NFS3_OK) {
3129 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3130 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3131 free(data);
3132 return;
3133 }
3134
3135 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
3136 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
3137 free(data);
3138 }
3139
3140 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
3141 {
3142 struct lseek_cb_data *data;
3143 struct GETATTR3args args;
3144
3145 if (whence == SEEK_SET) {
3146 nfsfh->offset = offset;
3147 cb(0, nfs, &nfsfh->offset, private_data);
3148 return 0;
3149 }
3150 if (whence == SEEK_CUR) {
3151 nfsfh->offset += offset;
3152 cb(0, nfs, &nfsfh->offset, private_data);
3153 return 0;
3154 }
3155
3156 data = malloc(sizeof(struct lseek_cb_data));
3157 if (data == NULL) {
3158 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
3159 return -1;
3160 }
3161
3162 data->nfs = nfs;
3163 data->nfsfh = nfsfh;
3164 data->offset = offset;
3165 data->cb = cb;
3166 data->private_data = private_data;
3167
3168 memset(&args, 0, sizeof(GETATTR3args));
3169 args.object = nfsfh->fh;
3170
3171 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_lseek_1_cb, &args, data) != 0) {
3172 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
3173 free(data);
3174 return -1;
3175 }
3176 return 0;
3177 }
3178
3179
3180
3181
3182 /*
3183 * Async statvfs()
3184 */
3185 static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3186 {
3187 FSSTAT3res *res;
3188 struct nfs_cb_data *data = private_data;
3189 struct nfs_context *nfs = data->nfs;
3190 struct statvfs svfs;
3191
3192 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3193
3194 if (status == RPC_STATUS_ERROR) {
3195 data->cb(-EFAULT, nfs, command_data, data->private_data);
3196 free_nfs_cb_data(data);
3197 return;
3198 }
3199 if (status == RPC_STATUS_CANCEL) {
3200 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3201 free_nfs_cb_data(data);
3202 return;
3203 }
3204
3205 res = command_data;
3206 if (res->status != NFS3_OK) {
3207 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));
3208 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3209 free_nfs_cb_data(data);
3210 return;
3211 }
3212
3213 svfs.f_bsize = 4096;
3214 svfs.f_frsize = 4096;
3215 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
3216 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
3217 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
3218 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
3219 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
3220 #if !defined(ANDROID)
3221 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
3222 svfs.f_fsid = 0;
3223 svfs.f_flag = 0;
3224 svfs.f_namemax = 256;
3225 #endif
3226
3227 data->cb(0, nfs, &svfs, data->private_data);
3228 free_nfs_cb_data(data);
3229 }
3230
3231 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3232 {
3233 FSSTAT3args args;
3234
3235 args.fsroot = data->fh;
3236 if (rpc_nfs3_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &args, data) != 0) {
3237 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
3238 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3239 free_nfs_cb_data(data);
3240 return -1;
3241 }
3242 return 0;
3243 }
3244
3245 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
3246 {
3247 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
3248 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3249 return -1;
3250 }
3251
3252 return 0;
3253 }
3254
3255
3256
3257
3258 /*
3259 * Async readlink()
3260 */
3261 static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3262 {
3263 READLINK3res *res;
3264 struct nfs_cb_data *data = private_data;
3265 struct nfs_context *nfs = data->nfs;
3266
3267 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3268
3269 if (status == RPC_STATUS_ERROR) {
3270 data->cb(-EFAULT, nfs, command_data, data->private_data);
3271 free_nfs_cb_data(data);
3272 return;
3273 }
3274 if (status == RPC_STATUS_CANCEL) {
3275 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3276 free_nfs_cb_data(data);
3277 return;
3278 }
3279
3280 res = command_data;
3281 if (res->status != NFS3_OK) {
3282 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));
3283 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3284 free_nfs_cb_data(data);
3285 return;
3286 }
3287
3288
3289 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
3290 free_nfs_cb_data(data);
3291 }
3292
3293 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3294 {
3295 READLINK3args args;
3296
3297 args.symlink = data->fh;
3298
3299 if (rpc_nfs3_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
3300 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
3301 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3302 free_nfs_cb_data(data);
3303 return -1;
3304 }
3305 return 0;
3306 }
3307
3308 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
3309 {
3310 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
3311 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3312 return -1;
3313 }
3314
3315 return 0;
3316 }
3317
3318
3319
3320
3321 /*
3322 * Async chmod()
3323 */
3324 static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3325 {
3326 struct nfs_cb_data *data = private_data;
3327 struct nfs_context *nfs = data->nfs;
3328 SETATTR3res *res;
3329
3330 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3331
3332 if (status == RPC_STATUS_ERROR) {
3333 data->cb(-EFAULT, nfs, command_data, data->private_data);
3334 free_nfs_cb_data(data);
3335 return;
3336 }
3337 if (status == RPC_STATUS_CANCEL) {
3338 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3339 free_nfs_cb_data(data);
3340 return;
3341 }
3342
3343 res = command_data;
3344 if (res->status != NFS3_OK) {
3345 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3346 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3347 free_nfs_cb_data(data);
3348 return;
3349 }
3350
3351 data->cb(0, nfs, NULL, data->private_data);
3352 free_nfs_cb_data(data);
3353 }
3354
3355 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3356 {
3357 SETATTR3args args;
3358
3359 memset(&args, 0, sizeof(SETATTR3args));
3360 args.object = data->fh;
3361 args.new_attributes.mode.set_it = 1;
3362 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
3363
3364 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
3365 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3366 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3367 free_nfs_cb_data(data);
3368 return -1;
3369 }
3370 return 0;
3371 }
3372
3373
3374 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3375 {
3376 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
3377 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3378 return -1;
3379 }
3380
3381 return 0;
3382 }
3383
3384 /*
3385 * Async fchmod()
3386 */
3387 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
3388 {
3389 struct nfs_cb_data *data;
3390
3391 data = malloc(sizeof(struct nfs_cb_data));
3392 if (data == NULL) {
3393 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
3394 return -1;
3395 }
3396 memset(data, 0, sizeof(struct nfs_cb_data));
3397 data->nfs = nfs;
3398 data->cb = cb;
3399 data->private_data = private_data;
3400 data->continue_int = mode;
3401 data->fh.data.data_len = nfsfh->fh.data.data_len;
3402 data->fh.data.data_val = malloc(data->fh.data.data_len);
3403 if (data->fh.data.data_val == NULL) {
3404 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3405 free_nfs_cb_data(data);
3406 return -1;
3407 }
3408 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3409
3410 if (nfs_chmod_continue_internal(nfs, data) != 0) {
3411 return -1;
3412 }
3413
3414 return 0;
3415 }
3416
3417
3418
3419 /*
3420 * Async chown()
3421 */
3422 static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3423 {
3424 struct nfs_cb_data *data = private_data;
3425 struct nfs_context *nfs = data->nfs;
3426 SETATTR3res *res;
3427
3428 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3429
3430 if (status == RPC_STATUS_ERROR) {
3431 data->cb(-EFAULT, nfs, command_data, data->private_data);
3432 free_nfs_cb_data(data);
3433 return;
3434 }
3435 if (status == RPC_STATUS_CANCEL) {
3436 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3437 free_nfs_cb_data(data);
3438 return;
3439 }
3440
3441 res = command_data;
3442 if (res->status != NFS3_OK) {
3443 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3444 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3445 free_nfs_cb_data(data);
3446 return;
3447 }
3448
3449 data->cb(0, nfs, NULL, data->private_data);
3450 free_nfs_cb_data(data);
3451 }
3452
3453 struct nfs_chown_data {
3454 uid_t uid;
3455 gid_t gid;
3456 };
3457
3458 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3459 {
3460 SETATTR3args args;
3461 struct nfs_chown_data *chown_data = data->continue_data;
3462
3463 memset(&args, 0, sizeof(SETATTR3args));
3464 args.object = data->fh;
3465 if (chown_data->uid != (uid_t)-1) {
3466 args.new_attributes.uid.set_it = 1;
3467 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
3468 }
3469 if (chown_data->gid != (gid_t)-1) {
3470 args.new_attributes.gid.set_it = 1;
3471 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
3472 }
3473
3474 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
3475 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3476 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3477 free_nfs_cb_data(data);
3478 return -1;
3479 }
3480 return 0;
3481 }
3482
3483
3484 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
3485 {
3486 struct nfs_chown_data *chown_data;
3487
3488 chown_data = malloc(sizeof(struct nfs_chown_data));
3489 if (chown_data == NULL) {
3490 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3491 return -1;
3492 }
3493
3494 chown_data->uid = uid;
3495 chown_data->gid = gid;
3496
3497 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
3498 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3499 return -1;
3500 }
3501
3502 return 0;
3503 }
3504
3505
3506 /*
3507 * Async fchown()
3508 */
3509 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
3510 {
3511 struct nfs_cb_data *data;
3512 struct nfs_chown_data *chown_data;
3513
3514 chown_data = malloc(sizeof(struct nfs_chown_data));
3515 if (chown_data == NULL) {
3516 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3517 return -1;
3518 }
3519
3520 chown_data->uid = uid;
3521 chown_data->gid = gid;
3522
3523 data = malloc(sizeof(struct nfs_cb_data));
3524 if (data == NULL) {
3525 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
3526 free(chown_data);
3527 return -1;
3528 }
3529 memset(data, 0, sizeof(struct nfs_cb_data));
3530 data->nfs = nfs;
3531 data->cb = cb;
3532 data->private_data = private_data;
3533 data->continue_data = chown_data;
3534 data->free_continue_data = free;
3535 data->fh.data.data_len = nfsfh->fh.data.data_len;
3536 data->fh.data.data_val = malloc(data->fh.data.data_len);
3537 if (data->fh.data.data_val == NULL) {
3538 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3539 free_nfs_cb_data(data);
3540 return -1;
3541 }
3542 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3543
3544 if (nfs_chown_continue_internal(nfs, data) != 0) {
3545 return -1;
3546 }
3547
3548 return 0;
3549 }
3550
3551
3552
3553
3554
3555 /*
3556 * Async utimes()
3557 */
3558 static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3559 {
3560 struct nfs_cb_data *data = private_data;
3561 struct nfs_context *nfs = data->nfs;
3562 SETATTR3res *res;
3563
3564 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3565
3566 if (status == RPC_STATUS_ERROR) {
3567 data->cb(-EFAULT, nfs, command_data, data->private_data);
3568 free_nfs_cb_data(data);
3569 return;
3570 }
3571 if (status == RPC_STATUS_CANCEL) {
3572 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3573 free_nfs_cb_data(data);
3574 return;
3575 }
3576
3577 res = command_data;
3578 if (res->status != NFS3_OK) {
3579 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3580 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3581 free_nfs_cb_data(data);
3582 return;
3583 }
3584
3585 data->cb(0, nfs, NULL, data->private_data);
3586 free_nfs_cb_data(data);
3587 }
3588
3589 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3590 {
3591 SETATTR3args args;
3592 struct timeval *utimes_data = data->continue_data;
3593
3594 memset(&args, 0, sizeof(SETATTR3args));
3595 args.object = data->fh;
3596 if (utimes_data != NULL) {
3597 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
3598 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
3599 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
3600 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
3601 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
3602 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
3603 } else {
3604 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
3605 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
3606 }
3607
3608 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
3609 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3610 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3611 free_nfs_cb_data(data);
3612 return -1;
3613 }
3614 return 0;
3615 }
3616
3617
3618 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
3619 {
3620 struct timeval *new_times = NULL;
3621
3622 if (times != NULL) {
3623 new_times = malloc(sizeof(struct timeval)*2);
3624 if (new_times == NULL) {
3625 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3626 return -1;
3627 }
3628
3629 memcpy(new_times, times, sizeof(struct timeval)*2);
3630 }
3631
3632 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3633 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3634 return -1;
3635 }
3636
3637 return 0;
3638 }
3639
3640 /*
3641 * Async utime()
3642 */
3643 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
3644 {
3645 struct timeval *new_times = NULL;
3646
3647 if (times != NULL) {
3648 new_times = malloc(sizeof(struct timeval)*2);
3649 if (new_times == NULL) {
3650 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3651 return -1;
3652 }
3653
3654 new_times[0].tv_sec = times->actime;
3655 new_times[0].tv_usec = 0;
3656 new_times[1].tv_sec = times->modtime;
3657 new_times[1].tv_usec = 0;
3658 }
3659
3660 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3661 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3662 return -1;
3663 }
3664
3665 return 0;
3666 }
3667
3668
3669 /*
3670 * Async access()
3671 */
3672 static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3673 {
3674 ACCESS3res *res;
3675 struct nfs_cb_data *data = private_data;
3676 struct nfs_context *nfs = data->nfs;
3677 unsigned int nfsmode = 0;
3678
3679 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3680
3681 if (status == RPC_STATUS_ERROR) {
3682 data->cb(-EFAULT, nfs, command_data, data->private_data);
3683 free_nfs_cb_data(data);
3684 return;
3685 }
3686 if (status == RPC_STATUS_CANCEL) {
3687 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3688 free_nfs_cb_data(data);
3689 return;
3690 }
3691
3692 res = command_data;
3693 if (res->status != NFS3_OK) {
3694 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));
3695 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3696 free_nfs_cb_data(data);
3697 return;
3698 }
3699
3700 if (data->continue_int & R_OK) {
3701 nfsmode |= ACCESS3_READ;
3702 }
3703 if (data->continue_int & W_OK) {
3704 nfsmode |= ACCESS3_MODIFY;
3705 }
3706 if (data->continue_int & X_OK) {
3707 nfsmode |= ACCESS3_EXECUTE;
3708 }
3709
3710 if (res->ACCESS3res_u.resok.access != nfsmode) {
3711 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
3712 nfsmode&ACCESS3_READ?'r':'-',
3713 nfsmode&ACCESS3_MODIFY?'w':'-',
3714 nfsmode&ACCESS3_EXECUTE?'x':'-',
3715 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
3716 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
3717 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
3718 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
3719 free_nfs_cb_data(data);
3720 return;
3721 }
3722
3723 data->cb(0, nfs, NULL, data->private_data);
3724 free_nfs_cb_data(data);
3725 }
3726
3727 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3728 {
3729 int nfsmode = 0;
3730 ACCESS3args args;
3731
3732 if (data->continue_int & R_OK) {
3733 nfsmode |= ACCESS3_READ;
3734 }
3735 if (data->continue_int & W_OK) {
3736 nfsmode |= ACCESS3_MODIFY;
3737 }
3738 if (data->continue_int & X_OK) {
3739 nfsmode |= ACCESS3_EXECUTE;
3740 }
3741
3742 memset(&args, 0, sizeof(ACCESS3args));
3743 args.object = data->fh;
3744 args.access = nfsmode;
3745
3746 if (rpc_nfs3_access_async(nfs->rpc, nfs_access_cb, &args, data) != 0) {
3747 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
3748 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3749 free_nfs_cb_data(data);
3750 return -1;
3751 }
3752 return 0;
3753 }
3754
3755 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3756 {
3757 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
3758 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3759 return -1;
3760 }
3761
3762 return 0;
3763 }
3764
3765
3766
3767 /*
3768 * Async symlink()
3769 */
3770 struct nfs_symlink_data {
3771 char *oldpath;
3772 char *newpathparent;
3773 char *newpathobject;
3774 };
3775
3776 static void free_nfs_symlink_data(void *mem)
3777 {
3778 struct nfs_symlink_data *data = mem;
3779
3780 if (data->oldpath != NULL) {
3781 free(data->oldpath);
3782 }
3783 if (data->newpathparent != NULL) {
3784 free(data->newpathparent);
3785 }
3786 if (data->newpathobject != NULL) {
3787 free(data->newpathobject);
3788 }
3789 free(data);
3790 }
3791
3792 static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3793 {
3794 SYMLINK3res *res;
3795 struct nfs_cb_data *data = private_data;
3796 struct nfs_context *nfs = data->nfs;
3797 struct nfs_symlink_data *symlink_data = data->continue_data;
3798
3799 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3800
3801 if (status == RPC_STATUS_ERROR) {
3802 data->cb(-EFAULT, nfs, command_data, data->private_data);
3803 free_nfs_cb_data(data);
3804 return;
3805 }
3806 if (status == RPC_STATUS_CANCEL) {
3807 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3808 free_nfs_cb_data(data);
3809 return;
3810 }
3811
3812 res = command_data;
3813 if (res->status != NFS3_OK) {
3814 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));
3815 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3816 free_nfs_cb_data(data);
3817 return;
3818 }
3819
3820 data->cb(0, nfs, NULL, data->private_data);
3821 free_nfs_cb_data(data);
3822 }
3823
3824 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3825 {
3826 struct nfs_symlink_data *symlink_data = data->continue_data;
3827 SYMLINK3args args;
3828
3829 memset(&args, 0, sizeof(SYMLINK3args));
3830 args.where.dir = data->fh;
3831 args.where.name = symlink_data->newpathobject;
3832 args.symlink.symlink_attributes.mode.set_it = 1;
3833 args.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;
3834 args.symlink.symlink_data = symlink_data->oldpath;
3835
3836 if (rpc_nfs3_symlink_async(nfs->rpc, nfs_symlink_cb, &args, data) != 0) {
3837 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
3838 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3839 free_nfs_cb_data(data);
3840 return -1;
3841 }
3842 return 0;
3843 }
3844
3845 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3846 {
3847 char *ptr;
3848 struct nfs_symlink_data *symlink_data;
3849
3850 symlink_data = malloc(sizeof(struct nfs_symlink_data));
3851 if (symlink_data == NULL) {
3852 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
3853 return -1;
3854 }
3855 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
3856
3857 symlink_data->oldpath = strdup(oldpath);
3858 if (symlink_data->oldpath == NULL) {
3859 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3860 free_nfs_symlink_data(symlink_data);
3861 return -1;
3862 }
3863
3864 symlink_data->newpathparent = strdup(newpath);
3865 if (symlink_data->newpathparent == NULL) {
3866 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3867 free_nfs_symlink_data(symlink_data);
3868 return -1;
3869 }
3870
3871 ptr = strrchr(symlink_data->newpathparent, '/');
3872 if (ptr == NULL) {
3873 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3874 free_nfs_symlink_data(symlink_data);
3875 return -1;
3876 }
3877 *ptr = 0;
3878 ptr++;
3879
3880 symlink_data->newpathobject = strdup(ptr);
3881 if (symlink_data->newpathobject == NULL) {
3882 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3883 free_nfs_symlink_data(symlink_data);
3884 return -1;
3885 }
3886
3887 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
3888 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3889 return -1;
3890 }
3891
3892 return 0;
3893 }
3894
3895
3896
3897 /*
3898 * Async rename()
3899 */
3900 struct nfs_rename_data {
3901 char *oldpath;
3902 char *oldobject;
3903 struct nfs_fh3 olddir;
3904 char *newpath;
3905 char *newobject;
3906 struct nfs_fh3 newdir;
3907 };
3908
3909 static void free_nfs_rename_data(void *mem)
3910 {
3911 struct nfs_rename_data *data = mem;
3912
3913 if (data->oldpath != NULL) {
3914 free(data->oldpath);
3915 }
3916 if (data->olddir.data.data_val != NULL) {
3917 free(data->olddir.data.data_val);
3918 }
3919 if (data->newpath != NULL) {
3920 free(data->newpath);
3921 }
3922 if (data->newdir.data.data_val != NULL) {
3923 free(data->newdir.data.data_val);
3924 }
3925 free(data);
3926 }
3927
3928 static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3929 {
3930 RENAME3res *res;
3931 struct nfs_cb_data *data = private_data;
3932 struct nfs_context *nfs = data->nfs;
3933 struct nfs_rename_data *rename_data = data->continue_data;
3934
3935 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3936
3937 if (status == RPC_STATUS_ERROR) {
3938 data->cb(-EFAULT, nfs, command_data, data->private_data);
3939 free_nfs_cb_data(data);
3940 return;
3941 }
3942 if (status == RPC_STATUS_CANCEL) {
3943 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3944 free_nfs_cb_data(data);
3945 return;
3946 }
3947
3948 res = command_data;
3949 if (res->status != NFS3_OK) {
3950 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));
3951 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3952 free_nfs_cb_data(data);
3953 return;
3954 }
3955
3956 data->cb(0, nfs, NULL, data->private_data);
3957 free_nfs_cb_data(data);
3958 }
3959
3960 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3961 {
3962 struct nfs_rename_data *rename_data = data->continue_data;
3963 RENAME3args args;
3964
3965 /* steal the filehandle */
3966 rename_data->newdir = data->fh;
3967 data->fh.data.data_val = NULL;
3968
3969 args.from.dir = rename_data->olddir;
3970 args.from.name = rename_data->oldobject;
3971 args.to.dir = rename_data->newdir;
3972 args.to.name = rename_data->newobject;
3973 if (rpc_nfs3_rename_async(nfs->rpc, nfs_rename_cb, &args, data) != 0) {
3974 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
3975 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3976 free_nfs_cb_data(data);
3977 return -1;
3978 }
3979 return 0;
3980 }
3981
3982
3983 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3984 {
3985 struct nfs_rename_data *rename_data = data->continue_data;
3986 char* newpath = strdup(rename_data->newpath);
3987 if (!newpath) {
3988 rpc_set_error(nfs->rpc, "Out of memory. Could not allocate memory to store target path for rename");
3989 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3990 free_nfs_cb_data(data);
3991 return -1;
3992 }
3993
3994 /* steal the filehandle */
3995 rename_data->olddir = data->fh;
3996 data->fh.data.data_val = NULL;
3997
3998 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) {
3999 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", newpath);
4000 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4001 free_nfs_cb_data(data);
4002 free(newpath);
4003 return -1;
4004 }
4005 data->continue_data = NULL;
4006 free_nfs_cb_data(data);
4007 free(newpath);
4008
4009 return 0;
4010 }
4011
4012
4013 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
4014 {
4015 char *ptr;
4016 struct nfs_rename_data *rename_data;
4017
4018 rename_data = malloc(sizeof(struct nfs_rename_data));
4019 if (rename_data == NULL) {
4020 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
4021 return -1;
4022 }
4023 memset(rename_data, 0, sizeof(struct nfs_rename_data));
4024
4025 rename_data->oldpath = strdup(oldpath);
4026 if (rename_data->oldpath == NULL) {
4027 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
4028 free_nfs_rename_data(rename_data);
4029 return -1;
4030 }
4031 ptr = strrchr(rename_data->oldpath, '/');
4032 if (ptr == NULL) {
4033 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
4034 free_nfs_rename_data(rename_data);
4035 return -1;
4036 }
4037 *ptr = 0;
4038 ptr++;
4039 rename_data->oldobject = ptr;
4040
4041
4042 rename_data->newpath = strdup(newpath);
4043 if (rename_data->newpath == NULL) {
4044 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
4045 free_nfs_rename_data(rename_data);
4046 return -1;
4047 }
4048 ptr = strrchr(rename_data->newpath, '/');
4049 if (ptr == NULL) {
4050 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
4051 free_nfs_rename_data(rename_data);
4052 return -1;
4053 }
4054 *ptr = 0;
4055 ptr++;
4056 rename_data->newobject = ptr;
4057
4058
4059 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
4060 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4061 return -1;
4062 }
4063
4064 return 0;
4065 }
4066
4067
4068 /*
4069 * Async link()
4070 */
4071 struct nfs_link_data {
4072 char *oldpath;
4073 struct nfs_fh3 oldfh;
4074 char *newpath;
4075 char *newobject;
4076 struct nfs_fh3 newdir;
4077 };
4078
4079 static void free_nfs_link_data(void *mem)
4080 {
4081 struct nfs_link_data *data = mem;
4082
4083 if (data->oldpath != NULL) {
4084 free(data->oldpath);
4085 }
4086 if (data->oldfh.data.data_val != NULL) {
4087 free(data->oldfh.data.data_val);
4088 }
4089 if (data->newpath != NULL) {
4090 free(data->newpath);
4091 }
4092 if (data->newdir.data.data_val != NULL) {
4093 free(data->newdir.data.data_val);
4094 }
4095 free(data);
4096 }
4097
4098 static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4099 {
4100 LINK3res *res;
4101 struct nfs_cb_data *data = private_data;
4102 struct nfs_context *nfs = data->nfs;
4103 struct nfs_link_data *link_data = data->continue_data;
4104
4105 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4106
4107 if (status == RPC_STATUS_ERROR) {
4108 data->cb(-EFAULT, nfs, command_data, data->private_data);
4109 free_nfs_cb_data(data);
4110 return;
4111 }
4112 if (status == RPC_STATUS_CANCEL) {
4113 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
4114 free_nfs_cb_data(data);
4115 return;
4116 }
4117
4118 res = command_data;
4119 if (res->status != NFS3_OK) {
4120 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));
4121 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
4122 free_nfs_cb_data(data);
4123 return;
4124 }
4125
4126 data->cb(0, nfs, NULL, data->private_data);
4127 free_nfs_cb_data(data);
4128 }
4129
4130 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
4131 {
4132 struct nfs_link_data *link_data = data->continue_data;
4133 LINK3args args;
4134
4135 /* steal the filehandle */
4136 link_data->newdir = data->fh;
4137 data->fh.data.data_val = NULL;
4138
4139 memset(&args, 0, sizeof(LINK3args));
4140 args.file = link_data->oldfh;
4141 args.link.dir = link_data->newdir;
4142 args.link.name = link_data->newobject;
4143 if (rpc_nfs3_link_async(nfs->rpc, nfs_link_cb, &args, data) != 0) {
4144 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
4145 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4146 free_nfs_cb_data(data);
4147 return -1;
4148 }
4149 return 0;
4150 }
4151
4152
4153 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
4154 {
4155 struct nfs_link_data *link_data = data->continue_data;
4156
4157 /* steal the filehandle */
4158 link_data->oldfh = data->fh;
4159 data->fh.data.data_val = NULL;
4160
4161 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) {
4162 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
4163 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4164 free_nfs_cb_data(data);
4165 return -1;
4166 }
4167 data->continue_data = NULL;
4168 free_nfs_cb_data(data);
4169
4170 return 0;
4171 }
4172
4173
4174 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
4175 {
4176 char *ptr;
4177 struct nfs_link_data *link_data;
4178
4179 link_data = malloc(sizeof(struct nfs_link_data));
4180 if (link_data == NULL) {
4181 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
4182 return -1;
4183 }
4184 memset(link_data, 0, sizeof(struct nfs_link_data));
4185
4186 link_data->oldpath = strdup(oldpath);
4187 if (link_data->oldpath == NULL) {
4188 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
4189 free_nfs_link_data(link_data);
4190 return -1;
4191 }
4192
4193 link_data->newpath = strdup(newpath);
4194 if (link_data->newpath == NULL) {
4195 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
4196 free_nfs_link_data(link_data);
4197 return -1;
4198 }
4199 ptr = strrchr(link_data->newpath, '/');
4200 if (ptr == NULL) {
4201 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
4202 free_nfs_link_data(link_data);
4203 return -1;
4204 }
4205 *ptr = 0;
4206 ptr++;
4207 link_data->newobject = ptr;
4208
4209
4210 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
4211 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4212 return -1;
4213 }
4214
4215 return 0;
4216 }
4217
4218
4219 //qqq replace later with lseek()
4220 uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
4221 {
4222 return nfsfh->offset;
4223 }
4224
4225
4226
4227 /*
4228 * Get the maximum supported READ3 size by the server
4229 */
4230 uint64_t nfs_get_readmax(struct nfs_context *nfs)
4231 {
4232 return nfs->readmax;
4233 }
4234
4235 /*
4236 * Get the maximum supported WRITE3 size by the server
4237 */
4238 uint64_t nfs_get_writemax(struct nfs_context *nfs)
4239 {
4240 return nfs->writemax;
4241 }
4242
4243 void nfs_set_tcp_syncnt(struct nfs_context *nfs, int v) {
4244 rpc_set_tcp_syncnt(nfs->rpc, v);
4245 }
4246
4247 void nfs_set_uid(struct nfs_context *nfs, int uid) {
4248 rpc_set_uid(nfs->rpc, uid);
4249 }
4250
4251 void nfs_set_gid(struct nfs_context *nfs, int gid) {
4252 rpc_set_gid(nfs->rpc, gid);
4253 }
4254
4255 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
4256 {
4257 va_list ap;
4258 char *str = NULL;
4259
4260 va_start(ap, error_string);
4261 str = malloc(1024);
4262 vsnprintf(str, 1024, error_string, ap);
4263 if (nfs->rpc->error_string != NULL) {
4264 free(nfs->rpc->error_string);
4265 }
4266 nfs->rpc->error_string = str;
4267 va_end(ap);
4268 }
4269
4270
4271
4272 struct mount_cb_data {
4273 rpc_cb cb;
4274 void *private_data;
4275 char *server;
4276 };
4277
4278 static void free_mount_cb_data(struct mount_cb_data *data)
4279 {
4280 if (data->server != NULL) {
4281 free(data->server);
4282 data->server = NULL;
4283 }
4284
4285 free(data);
4286 }
4287
4288 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4289 {
4290 struct mount_cb_data *data = private_data;
4291
4292 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4293
4294 if (status == RPC_STATUS_ERROR) {
4295 data->cb(rpc, -EFAULT, command_data, data->private_data);
4296 free_mount_cb_data(data);
4297 return;
4298 }
4299 if (status == RPC_STATUS_CANCEL) {
4300 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4301 free_mount_cb_data(data);
4302 return;
4303 }
4304
4305 data->cb(rpc, 0, command_data, data->private_data);
4306 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
4307 rpc_set_error(rpc, "Failed to disconnect\n");
4308 }
4309 free_mount_cb_data(data);
4310 }
4311
4312 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4313 {
4314 struct mount_cb_data *data = private_data;
4315
4316 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4317
4318 /* Dont want any more callbacks even if the socket is closed */
4319 rpc->connect_cb = NULL;
4320
4321 if (status == RPC_STATUS_ERROR) {
4322 data->cb(rpc, -EFAULT, command_data, data->private_data);
4323 free_mount_cb_data(data);
4324 return;
4325 }
4326 if (status == RPC_STATUS_CANCEL) {
4327 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4328 free_mount_cb_data(data);
4329 return;
4330 }
4331
4332 if (rpc_mount3_export_async(rpc, mount_export_5_cb, data) != 0) {
4333 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4334 free_mount_cb_data(data);
4335 return;
4336 }
4337 }
4338
4339 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4340 {
4341 struct mount_cb_data *data = private_data;
4342 uint32_t mount_port;
4343
4344 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4345
4346 if (status == RPC_STATUS_ERROR) {
4347 data->cb(rpc, -EFAULT, command_data, data->private_data);
4348 free_mount_cb_data(data);
4349 return;
4350 }
4351 if (status == RPC_STATUS_CANCEL) {
4352 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4353 free_mount_cb_data(data);
4354 return;
4355 }
4356
4357 mount_port = *(uint32_t *)command_data;
4358 if (mount_port == 0) {
4359 rpc_set_error(rpc, "RPC error. Mount program is not available");
4360 data->cb(rpc, -ENOENT, command_data, data->private_data);
4361 free_mount_cb_data(data);
4362 return;
4363 }
4364
4365 rpc_disconnect(rpc, "normal disconnect");
4366 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
4367 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4368 free_mount_cb_data(data);
4369 return;
4370 }
4371 }
4372
4373 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4374 {
4375 struct mount_cb_data *data = private_data;
4376
4377 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4378
4379 if (status == RPC_STATUS_ERROR) {
4380 data->cb(rpc, -EFAULT, command_data, data->private_data);
4381 free_mount_cb_data(data);
4382 return;
4383 }
4384 if (status == RPC_STATUS_CANCEL) {
4385 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4386 free_mount_cb_data(data);
4387 return;
4388 }
4389
4390 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
4391 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4392 free_mount_cb_data(data);
4393 return;
4394 }
4395 }
4396
4397 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4398 {
4399 struct mount_cb_data *data = private_data;
4400
4401 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4402
4403 /* Dont want any more callbacks even if the socket is closed */
4404 rpc->connect_cb = NULL;
4405
4406 if (status == RPC_STATUS_ERROR) {
4407 data->cb(rpc, -EFAULT, command_data, data->private_data);
4408 free_mount_cb_data(data);
4409 return;
4410 }
4411 if (status == RPC_STATUS_CANCEL) {
4412 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4413 free_mount_cb_data(data);
4414 return;
4415 }
4416
4417 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
4418 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4419 free_mount_cb_data(data);
4420 return;
4421 }
4422 }
4423
4424 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
4425 {
4426 struct mount_cb_data *data;
4427
4428 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4429
4430 data = malloc(sizeof(struct mount_cb_data));
4431 if (data == NULL) {
4432 return -1;
4433 }
4434 memset(data, 0, sizeof(struct mount_cb_data));
4435 data->cb = cb;
4436 data->private_data = private_data;
4437 data->server = strdup(server);
4438 if (data->server == NULL) {
4439 free_mount_cb_data(data);
4440 return -1;
4441 }
4442 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
4443 free_mount_cb_data(data);
4444 return -1;
4445 }
4446
4447 return 0;
4448 }
4449
4450 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
4451 {
4452 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
4453 return nfs->rpc;
4454 }
4455
4456 const char *nfs_get_server(struct nfs_context *nfs) {
4457 return nfs->server;
4458 }
4459
4460 const char *nfs_get_export(struct nfs_context *nfs) {
4461 return nfs->export;
4462 }
4463
4464 const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
4465 return &nfs->rootfh;
4466 }
4467
4468 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
4469 return &nfsfh->fh;
4470 }
libnfs Piment Noir Debian package repository