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nfs_parse_url: initialize memory
[deb_libnfs.git] / lib / libnfs.c
1 /*
2 Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17 /*
18 * High level api to nfs filesystems
19 */
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #ifdef AROS
25 #include "aros_compat.h"
26 #endif
27
28 #ifdef WIN32
29 #include "win32_compat.h"
30 #endif
31
32 #ifdef HAVE_UTIME_H
33 #include <utime.h>
34 #endif
35
36 #ifdef ANDROID
37 #define statvfs statfs
38 #endif
39
40 #define _GNU_SOURCE
41
42 #ifdef HAVE_UNISTD_H
43 #include <unistd.h>
44 #endif
45
46 #ifdef HAVE_SYS_VFS_H
47 #include <sys/vfs.h>
48 #endif
49
50 #ifdef HAVE_SYS_STATVFS_H
51 #include <sys/statvfs.h>
52 #endif
53
54 #ifdef HAVE_NETINET_IN_H
55 #include <netinet/in.h>
56 #endif
57
58 #ifdef HAVE_STRINGS_H
59 #include <strings.h>
60 #endif
61
62 #include <stdio.h>
63 #include <stdarg.h>
64 #include <stdlib.h>
65 #include <string.h>
66 #include <assert.h>
67 #include <errno.h>
68 #include <sys/types.h>
69 #include <sys/stat.h>
70 #include <fcntl.h>
71 #include "libnfs-zdr.h"
72 #include "libnfs.h"
73 #include "libnfs-raw.h"
74 #include "libnfs-raw-mount.h"
75 #include "libnfs-raw-nfs.h"
76 #include "libnfs-private.h"
77
78 struct nfsdir {
79 struct nfsdirent *entries;
80 struct nfsdirent *current;
81 };
82
83 struct nfsfh {
84 struct nfs_fh3 fh;
85 int is_sync;
86 uint64_t offset;
87 };
88
89 struct nfs_context {
90 struct rpc_context *rpc;
91 char *server;
92 char *export;
93 struct nfs_fh3 rootfh;
94 uint64_t readmax;
95 uint64_t writemax;
96 };
97
98 void nfs_free_nfsdir(struct nfsdir *nfsdir)
99 {
100 while (nfsdir->entries) {
101 struct nfsdirent *dirent = nfsdir->entries->next;
102 if (nfsdir->entries->name != NULL) {
103 free(nfsdir->entries->name);
104 }
105 free(nfsdir->entries);
106 nfsdir->entries = dirent;
107 }
108 free(nfsdir);
109 }
110
111 struct nfs_cb_data;
112 typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
113
114 struct nfs_cb_data {
115 struct nfs_context *nfs;
116 struct nfsfh *nfsfh;
117 char *saved_path, *path;
118
119 nfs_cb cb;
120 void *private_data;
121
122 continue_func continue_cb;
123 void *continue_data;
124 void (*free_continue_data)(void *);
125 int continue_int;
126
127 struct nfs_fh3 fh;
128
129 /* for multi-read/write calls. */
130 int error;
131 int cancel;
132 int num_calls;
133 uint64_t start_offset, max_offset;
134 char *buffer;
135 };
136
137 struct nfs_mcb_data {
138 struct nfs_cb_data *data;
139 uint64_t offset;
140 uint64_t count;
141 };
142
143 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
144
145
146 void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
147 {
148 rpc_set_auth(nfs->rpc, auth);
149 }
150
151 int nfs_get_fd(struct nfs_context *nfs)
152 {
153 return rpc_get_fd(nfs->rpc);
154 }
155
156 int nfs_queue_length(struct nfs_context *nfs)
157 {
158 return rpc_queue_length(nfs->rpc);
159 }
160
161 int nfs_which_events(struct nfs_context *nfs)
162 {
163 return rpc_which_events(nfs->rpc);
164 }
165
166 int nfs_service(struct nfs_context *nfs, int revents)
167 {
168 return rpc_service(nfs->rpc, revents);
169 }
170
171 char *nfs_get_error(struct nfs_context *nfs)
172 {
173 return rpc_get_error(nfs->rpc);
174 };
175
176 int rpc_set_context_args(struct rpc_context *rpc, char *arg, char *val)
177 {
178 if (!strncmp(arg, "tcp-syncnt", 10)) {
179 rpc_set_tcp_syncnt(rpc, atoi(val));
180 } else if (!strncmp(arg, "uid", 3)) {
181 rpc_set_uid(rpc, atoi(val));
182 } else if (!strncmp(arg, "gid", 3)) {
183 rpc_set_gid(rpc, 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 rpc_set_context_args(nfs_get_rpc_context(nfs),
292 strp, strp2);
293 }
294 }
295
296 if (urls->server && strlen(urls->server) <= 1) {
297 free(urls->server);
298 urls->server = NULL;
299 }
300
301 return urls;
302 }
303
304 struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url)
305 {
306 return nfs_parse_url(nfs, url, 0, 0);
307 }
308
309 struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url)
310 {
311 return nfs_parse_url(nfs, url, 1, 0);
312 }
313
314 struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url)
315 {
316 return nfs_parse_url(nfs, url, 0, 1);
317 }
318
319
320 void nfs_destroy_url(struct nfs_url *url)
321 {
322 if (url) {
323 free(url->server);
324 free(url->path);
325 free(url->file);
326 }
327 free(url);
328 }
329
330 struct nfs_context *nfs_init_context(void)
331 {
332 struct nfs_context *nfs;
333
334 nfs = malloc(sizeof(struct nfs_context));
335 if (nfs == NULL) {
336 return NULL;
337 }
338 nfs->rpc = rpc_init_context();
339 if (nfs->rpc == NULL) {
340 free(nfs);
341 return NULL;
342 }
343
344 nfs->server = NULL;
345 nfs->export = NULL;
346
347 nfs->rootfh.data.data_len = 0;
348 nfs->rootfh.data.data_val = NULL;
349
350 return nfs;
351 }
352
353 void nfs_destroy_context(struct nfs_context *nfs)
354 {
355 rpc_destroy_context(nfs->rpc);
356 nfs->rpc = NULL;
357
358 if (nfs->server) {
359 free(nfs->server);
360 nfs->server = NULL;
361 }
362
363 if (nfs->export) {
364 free(nfs->export);
365 nfs->export = NULL;
366 }
367
368 if (nfs->rootfh.data.data_val != NULL) {
369 free(nfs->rootfh.data.data_val);
370 nfs->rootfh.data.data_val = NULL;
371 }
372
373 free(nfs);
374 }
375
376 struct rpc_cb_data {
377 char *server;
378 uint32_t program;
379 uint32_t version;
380
381 rpc_cb cb;
382 void *private_data;
383 };
384
385 void free_rpc_cb_data(struct rpc_cb_data *data)
386 {
387 free(data->server);
388 data->server = NULL;
389 free(data);
390 }
391
392 static void rpc_connect_program_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
393 {
394 struct rpc_cb_data *data = private_data;
395
396 assert(rpc->magic == RPC_CONTEXT_MAGIC);
397
398 /* Dont want any more callbacks even if the socket is closed */
399 rpc->connect_cb = NULL;
400
401 if (status == RPC_STATUS_ERROR) {
402 data->cb(rpc, status, command_data, data->private_data);
403 free_rpc_cb_data(data);
404 return;
405 }
406 if (status == RPC_STATUS_CANCEL) {
407 data->cb(rpc, status, "Command was cancelled", data->private_data);
408 free_rpc_cb_data(data);
409 return;
410 }
411
412 data->cb(rpc, status, NULL, data->private_data);
413 free_rpc_cb_data(data);
414 }
415
416 static void rpc_connect_program_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
417 {
418 struct rpc_cb_data *data = private_data;
419 uint32_t rpc_port;
420
421 assert(rpc->magic == RPC_CONTEXT_MAGIC);
422
423 if (status == RPC_STATUS_ERROR) {
424 data->cb(rpc, status, command_data, data->private_data);
425 free_rpc_cb_data(data);
426 return;
427 }
428 if (status == RPC_STATUS_CANCEL) {
429 data->cb(rpc, status, "Command was cancelled", data->private_data);
430 free_rpc_cb_data(data);
431 return;
432 }
433
434 rpc_port = *(uint32_t *)command_data;
435 if (rpc_port == 0) {
436 rpc_set_error(rpc, "RPC error. Program is not available on %s", data->server);
437 data->cb(rpc, RPC_STATUS_ERROR, rpc_get_error(rpc), data->private_data);
438 free_rpc_cb_data(data);
439 return;
440 }
441
442 rpc_disconnect(rpc, "normal disconnect");
443 if (rpc_connect_async(rpc, data->server, rpc_port, rpc_connect_program_4_cb, data) != 0) {
444 data->cb(rpc, status, command_data, data->private_data);
445 free_rpc_cb_data(data);
446 return;
447 }
448 }
449
450 static void rpc_connect_program_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
451 {
452 struct rpc_cb_data *data = private_data;
453
454 assert(rpc->magic == RPC_CONTEXT_MAGIC);
455
456 if (status == RPC_STATUS_ERROR) {
457 data->cb(rpc, status, command_data, data->private_data);
458 free_rpc_cb_data(data);
459 return;
460 }
461 if (status == RPC_STATUS_CANCEL) {
462 data->cb(rpc, status, "Command was cancelled", data->private_data);
463 free_rpc_cb_data(data);
464 return;
465 }
466
467 if (rpc_pmap_getport_async(rpc, data->program, data->version, IPPROTO_TCP, rpc_connect_program_3_cb, private_data) != 0) {
468 data->cb(rpc, status, command_data, data->private_data);
469 free_rpc_cb_data(data);
470 return;
471 }
472 }
473
474 static void rpc_connect_program_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
475 {
476 struct rpc_cb_data *data = private_data;
477
478 assert(rpc->magic == RPC_CONTEXT_MAGIC);
479
480 /* Dont want any more callbacks even if the socket is closed */
481 rpc->connect_cb = NULL;
482
483 if (status == RPC_STATUS_ERROR) {
484 data->cb(rpc, status, command_data, data->private_data);
485 free_rpc_cb_data(data);
486 return;
487 }
488 if (status == RPC_STATUS_CANCEL) {
489 data->cb(rpc, status, "Command was cancelled", data->private_data);
490 free_rpc_cb_data(data);
491 return;
492 }
493
494 if (rpc_pmap_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
495 data->cb(rpc, status, command_data, data->private_data);
496 free_rpc_cb_data(data);
497 return;
498 }
499 }
500
501 int rpc_connect_program_async(struct rpc_context *rpc, char *server, int program, int version, rpc_cb cb, void *private_data)
502 {
503 struct rpc_cb_data *data;
504
505 data = malloc(sizeof(struct rpc_cb_data));
506 if (data == NULL) {
507 return -1;
508 }
509 memset(data, 0, sizeof(struct rpc_cb_data));
510 data->server = strdup(server);
511 data->program = program;
512 data->version = version;
513
514 data->cb = cb;
515 data->private_data = private_data;
516
517 if (rpc_connect_async(rpc, server, 111, rpc_connect_program_1_cb, data) != 0) {
518 rpc_set_error(rpc, "Failed to start connection");
519 free_rpc_cb_data(data);
520 return -1;
521 }
522 return 0;
523 }
524
525 void free_nfs_cb_data(struct nfs_cb_data *data)
526 {
527 if (data->saved_path != NULL) {
528 free(data->saved_path);
529 data->saved_path = NULL;
530 }
531
532 if (data->continue_data != NULL) {
533 data->free_continue_data(data->continue_data);
534 data->continue_data = NULL;
535 }
536
537 if (data->fh.data.data_val != NULL) {
538 free(data->fh.data.data_val);
539 data->fh.data.data_val = NULL;
540 }
541
542 if (data->buffer != NULL) {
543 free(data->buffer);
544 data->buffer = NULL;
545 }
546
547 free(data);
548 }
549
550
551
552
553
554 static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
555 {
556 struct nfs_cb_data *data = private_data;
557 struct nfs_context *nfs = data->nfs;
558
559 assert(rpc->magic == RPC_CONTEXT_MAGIC);
560
561 if (status == RPC_STATUS_ERROR) {
562 data->cb(-EFAULT, nfs, command_data, data->private_data);
563 free_nfs_cb_data(data);
564 return;
565 }
566 if (status == RPC_STATUS_CANCEL) {
567 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
568 free_nfs_cb_data(data);
569 return;
570 }
571
572 data->cb(0, nfs, NULL, data->private_data);
573 free_nfs_cb_data(data);
574 }
575
576 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
577 {
578 struct nfs_cb_data *data = private_data;
579 struct nfs_context *nfs = data->nfs;
580 FSINFO3res *res = command_data;
581 struct GETATTR3args args;
582
583 assert(rpc->magic == RPC_CONTEXT_MAGIC);
584
585 if (status == RPC_STATUS_ERROR) {
586 data->cb(-EFAULT, nfs, command_data, data->private_data);
587 free_nfs_cb_data(data);
588 return;
589 }
590 if (status == RPC_STATUS_CANCEL) {
591 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
592 free_nfs_cb_data(data);
593 return;
594 }
595
596 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
597 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
598
599 memset(&args, 0, sizeof(GETATTR3args));
600 args.object.data.data_len = nfs->rootfh.data.data_len;
601 args.object.data.data_val = nfs->rootfh.data.data_val;
602
603 if (rpc_nfs3_getattr_async(rpc, nfs_mount_10_cb, &args, data) != 0) {
604 data->cb(-ENOMEM, nfs, command_data, data->private_data);
605 free_nfs_cb_data(data);
606 return;
607 }
608 }
609
610 static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
611 {
612 struct nfs_cb_data *data = private_data;
613 struct nfs_context *nfs = data->nfs;
614
615 assert(rpc->magic == RPC_CONTEXT_MAGIC);
616
617 if (status == RPC_STATUS_ERROR) {
618 data->cb(-EFAULT, nfs, command_data, data->private_data);
619 free_nfs_cb_data(data);
620 return;
621 }
622 if (status == RPC_STATUS_CANCEL) {
623 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
624 free_nfs_cb_data(data);
625 return;
626 }
627
628 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
629 data->cb(-ENOMEM, nfs, command_data, data->private_data);
630 free_nfs_cb_data(data);
631 return;
632 }
633 }
634
635
636 static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
637 {
638 struct nfs_cb_data *data = private_data;
639 struct nfs_context *nfs = data->nfs;
640
641 assert(rpc->magic == RPC_CONTEXT_MAGIC);
642
643 /* Dont want any more callbacks even if the socket is closed */
644 rpc->connect_cb = NULL;
645
646 if (status == RPC_STATUS_ERROR) {
647 data->cb(-EFAULT, nfs, command_data, data->private_data);
648 free_nfs_cb_data(data);
649 return;
650 }
651 if (status == RPC_STATUS_CANCEL) {
652 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
653 free_nfs_cb_data(data);
654 return;
655 }
656
657 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
658 data->cb(-ENOMEM, nfs, command_data, data->private_data);
659 free_nfs_cb_data(data);
660 return;
661 }
662 }
663
664
665 static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
666 {
667 struct nfs_cb_data *data = private_data;
668 struct nfs_context *nfs = data->nfs;
669 mountres3 *res;
670
671 assert(rpc->magic == RPC_CONTEXT_MAGIC);
672
673 if (status == RPC_STATUS_ERROR) {
674 data->cb(-EFAULT, nfs, command_data, data->private_data);
675 free_nfs_cb_data(data);
676 return;
677 }
678 if (status == RPC_STATUS_CANCEL) {
679 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
680 free_nfs_cb_data(data);
681 return;
682 }
683
684 res = command_data;
685 if (res->fhs_status != MNT3_OK) {
686 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));
687 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
688 free_nfs_cb_data(data);
689 return;
690 }
691
692 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
693 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
694 if (nfs->rootfh.data.data_val == NULL) {
695 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
696 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
697 free_nfs_cb_data(data);
698 return;
699 }
700 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
701
702 rpc_disconnect(rpc, "normal disconnect");
703 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
704 data->cb(-ENOMEM, nfs, command_data, data->private_data);
705 free_nfs_cb_data(data);
706 return;
707 }
708 /* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
709 rpc_set_autoreconnect(rpc);
710 }
711
712
713 static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
714 {
715 struct nfs_cb_data *data = private_data;
716 struct nfs_context *nfs = data->nfs;
717
718 assert(rpc->magic == RPC_CONTEXT_MAGIC);
719
720 if (status == RPC_STATUS_ERROR) {
721 data->cb(-EFAULT, nfs, command_data, data->private_data);
722 free_nfs_cb_data(data);
723 return;
724 }
725 if (status == RPC_STATUS_CANCEL) {
726 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
727 free_nfs_cb_data(data);
728 return;
729 }
730
731 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
732 data->cb(-ENOMEM, nfs, command_data, data->private_data);
733 free_nfs_cb_data(data);
734 return;
735 }
736 }
737
738 static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
739 {
740 struct nfs_cb_data *data = private_data;
741 struct nfs_context *nfs = data->nfs;
742
743 assert(rpc->magic == RPC_CONTEXT_MAGIC);
744
745 /* Dont want any more callbacks even if the socket is closed */
746 rpc->connect_cb = NULL;
747
748 if (status == RPC_STATUS_ERROR) {
749 data->cb(-EFAULT, nfs, command_data, data->private_data);
750 free_nfs_cb_data(data);
751 return;
752 }
753 if (status == RPC_STATUS_CANCEL) {
754 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
755 free_nfs_cb_data(data);
756 return;
757 }
758
759 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
760 data->cb(-ENOMEM, nfs, command_data, data->private_data);
761 free_nfs_cb_data(data);
762 return;
763 }
764 }
765
766 static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
767 {
768 struct nfs_cb_data *data = private_data;
769 struct nfs_context *nfs = data->nfs;
770 uint32_t mount_port;
771
772 assert(rpc->magic == RPC_CONTEXT_MAGIC);
773
774 if (status == RPC_STATUS_ERROR) {
775 data->cb(-EFAULT, nfs, command_data, data->private_data);
776 free_nfs_cb_data(data);
777 return;
778 }
779 if (status == RPC_STATUS_CANCEL) {
780 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
781 free_nfs_cb_data(data);
782 return;
783 }
784
785 mount_port = *(uint32_t *)command_data;
786 if (mount_port == 0) {
787 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
788 data->cb(-ENOENT, nfs, command_data, data->private_data);
789 free_nfs_cb_data(data);
790 return;
791 }
792
793 rpc_disconnect(rpc, "normal disconnect");
794 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
795 data->cb(-ENOMEM, nfs, command_data, data->private_data);
796 free_nfs_cb_data(data);
797 return;
798 }
799 }
800
801
802 static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
803 {
804 struct nfs_cb_data *data = private_data;
805 struct nfs_context *nfs = data->nfs;
806
807 assert(rpc->magic == RPC_CONTEXT_MAGIC);
808
809 if (status == RPC_STATUS_ERROR) {
810 data->cb(-EFAULT, nfs, command_data, data->private_data);
811 free_nfs_cb_data(data);
812 return;
813 }
814 if (status == RPC_STATUS_CANCEL) {
815 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
816 free_nfs_cb_data(data);
817 return;
818 }
819
820 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, nfs_mount_3_cb, private_data) != 0) {
821 data->cb(-ENOMEM, nfs, command_data, data->private_data);
822 free_nfs_cb_data(data);
823 return;
824 }
825 }
826
827 static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
828 {
829 struct nfs_cb_data *data = private_data;
830 struct nfs_context *nfs = data->nfs;
831
832 assert(rpc->magic == RPC_CONTEXT_MAGIC);
833
834 /* Dont want any more callbacks even if the socket is closed */
835 rpc->connect_cb = NULL;
836
837 if (status == RPC_STATUS_ERROR) {
838 data->cb(-EFAULT, nfs, command_data, data->private_data);
839 free_nfs_cb_data(data);
840 return;
841 }
842 if (status == RPC_STATUS_CANCEL) {
843 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
844 free_nfs_cb_data(data);
845 return;
846 }
847
848 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
849 data->cb(-ENOMEM, nfs, command_data, data->private_data);
850 free_nfs_cb_data(data);
851 return;
852 }
853 }
854
855 /*
856 * Async call for mounting an nfs share and geting the root filehandle
857 */
858 int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
859 {
860 struct nfs_cb_data *data;
861 char *new_server, *new_export;
862
863 data = malloc(sizeof(struct nfs_cb_data));
864 if (data == NULL) {
865 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
866 return -1;
867 }
868 memset(data, 0, sizeof(struct nfs_cb_data));
869 new_server = strdup(server);
870 new_export = strdup(export);
871 if (nfs->server != NULL) {
872 free(nfs->server);
873 }
874 nfs->server = new_server;
875 if (nfs->export != NULL) {
876 free(nfs->export);
877 }
878 nfs->export = new_export;
879 data->nfs = nfs;
880 data->cb = cb;
881 data->private_data = private_data;
882
883 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
884 rpc_set_error(nfs->rpc, "Failed to start connection");
885 free_nfs_cb_data(data);
886 return -1;
887 }
888
889 return 0;
890 }
891
892
893
894 /*
895 * Functions to first look up a path, component by component, and then finally call a specific function once
896 * the filehandle for the final component is found.
897 */
898 static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
899 {
900 struct nfs_cb_data *data = private_data;
901 struct nfs_context *nfs = data->nfs;
902 LOOKUP3res *res;
903
904 assert(rpc->magic == RPC_CONTEXT_MAGIC);
905
906 if (status == RPC_STATUS_ERROR) {
907 data->cb(-EFAULT, nfs, command_data, data->private_data);
908 free_nfs_cb_data(data);
909 return;
910 }
911 if (status == RPC_STATUS_CANCEL) {
912 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
913 free_nfs_cb_data(data);
914 return;
915 }
916
917 res = command_data;
918 if (res->status != NFS3_OK) {
919 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));
920 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
921 free_nfs_cb_data(data);
922 return;
923 }
924
925 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
926 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
927 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
928 free_nfs_cb_data(data);
929 return;
930 }
931 }
932
933 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
934 {
935 char *path, *str;
936 LOOKUP3args args;
937
938 while (*data->path == '/') {
939 data->path++;
940 }
941
942 path = data->path;
943 str = strchr(path, '/');
944 if (str != NULL) {
945 *str = 0;
946 data->path = str+1;
947 } else {
948 while (*data->path != 0) {
949 data->path++;
950 }
951 }
952
953 if (*path == 0) {
954 data->fh.data.data_len = fh->data.data_len;
955 data->fh.data.data_val = malloc(data->fh.data.data_len);
956 if (data->fh.data.data_val == NULL) {
957 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
958 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
959 free_nfs_cb_data(data);
960 return -1;
961 }
962 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
963 data->continue_cb(nfs, data);
964 return 0;
965 }
966
967
968 memset(&args, 0, sizeof(LOOKUP3args));
969 args.what.dir.data.data_len = fh->data.data_len;
970 args.what.dir.data.data_val = fh->data.data_val;
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 return 0;
980 }
981
982 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)
983 {
984 struct nfs_cb_data *data;
985
986 if (path[0] != 0 && path[0] != '/') {
987 rpc_set_error(nfs->rpc, "Pathname is not absolute %s", path);
988 return -1;
989 }
990
991 data = malloc(sizeof(struct nfs_cb_data));
992 if (data == NULL) {
993 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
994 return -1;
995 }
996 memset(data, 0, sizeof(struct nfs_cb_data));
997 data->nfs = nfs;
998 data->cb = cb;
999 data->continue_cb = continue_cb;
1000 data->continue_data = continue_data;
1001 data->free_continue_data = free_continue_data;
1002 data->continue_int = continue_int;
1003 data->private_data = private_data;
1004 data->saved_path = strdup(path);
1005 if (data->saved_path == NULL) {
1006 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
1007 free_nfs_cb_data(data);
1008 return -1;
1009 }
1010 data->path = data->saved_path;
1011
1012 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
1013 /* return 0 here since the callback will be invoked if there is a failure */
1014 return 0;
1015 }
1016 return 0;
1017 }
1018
1019
1020
1021
1022
1023 /*
1024 * Async stat()
1025 */
1026 static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1027 {
1028 GETATTR3res *res;
1029 struct nfs_cb_data *data = private_data;
1030 struct nfs_context *nfs = data->nfs;
1031 struct stat st;
1032
1033 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1034
1035 if (status == RPC_STATUS_ERROR) {
1036 data->cb(-EFAULT, nfs, command_data, data->private_data);
1037 free_nfs_cb_data(data);
1038 return;
1039 }
1040 if (status == RPC_STATUS_CANCEL) {
1041 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1042 free_nfs_cb_data(data);
1043 return;
1044 }
1045
1046 res = command_data;
1047 if (res->status != NFS3_OK) {
1048 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));
1049 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1050 free_nfs_cb_data(data);
1051 return;
1052 }
1053
1054 st.st_dev = -1;
1055 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1056 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
1057 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
1058 st.st_mode |= S_IFDIR ;
1059 }
1060 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
1061 st.st_mode |= S_IFREG ;
1062 }
1063 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1064 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1065 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1066 st.st_rdev = 0;
1067 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
1068 #ifndef WIN32
1069 st.st_blksize = 4096;
1070 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
1071 #endif//WIN32
1072 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1073 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1074 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1075
1076 data->cb(0, nfs, &st, data->private_data);
1077 free_nfs_cb_data(data);
1078 }
1079
1080 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1081 {
1082 struct GETATTR3args args;
1083
1084 memset(&args, 0, sizeof(GETATTR3args));
1085 args.object.data.data_len = data->fh.data.data_len;
1086 args.object.data.data_val = data->fh.data.data_val;
1087
1088 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
1089 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1090 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1091 free_nfs_cb_data(data);
1092 return -1;
1093 }
1094 return 0;
1095 }
1096
1097 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1098 {
1099 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
1100 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1101 return -1;
1102 }
1103
1104 return 0;
1105 }
1106
1107
1108
1109
1110
1111 /*
1112 * Async open()
1113 */
1114 static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1115 {
1116 ACCESS3res *res;
1117 struct nfs_cb_data *data = private_data;
1118 struct nfs_context *nfs = data->nfs;
1119 struct nfsfh *nfsfh;
1120 unsigned int nfsmode = 0;
1121
1122 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1123
1124 if (status == RPC_STATUS_ERROR) {
1125 data->cb(-EFAULT, nfs, command_data, data->private_data);
1126 free_nfs_cb_data(data);
1127 return;
1128 }
1129 if (status == RPC_STATUS_CANCEL) {
1130 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1131 free_nfs_cb_data(data);
1132 return;
1133 }
1134
1135 res = command_data;
1136 if (res->status != NFS3_OK) {
1137 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));
1138 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1139 free_nfs_cb_data(data);
1140 return;
1141 }
1142
1143 if (data->continue_int & O_WRONLY) {
1144 nfsmode |= ACCESS3_MODIFY;
1145 }
1146 if (data->continue_int & O_RDWR) {
1147 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1148 }
1149 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1150 nfsmode |= ACCESS3_READ;
1151 }
1152
1153
1154 if (res->ACCESS3res_u.resok.access != nfsmode) {
1155 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
1156 nfsmode&ACCESS3_READ?'r':'-',
1157 nfsmode&ACCESS3_MODIFY?'w':'-',
1158 nfsmode&ACCESS3_EXECUTE?'x':'-',
1159 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
1160 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
1161 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
1162 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
1163 free_nfs_cb_data(data);
1164 return;
1165 }
1166
1167 nfsfh = malloc(sizeof(struct nfsfh));
1168 if (nfsfh == NULL) {
1169 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1170 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1171 free_nfs_cb_data(data);
1172 return;
1173 }
1174 memset(nfsfh, 0, sizeof(struct nfsfh));
1175
1176 if (data->continue_int & O_SYNC) {
1177 nfsfh->is_sync = 1;
1178 }
1179
1180 /* steal the filehandle */
1181 nfsfh->fh.data.data_len = data->fh.data.data_len;
1182 nfsfh->fh.data.data_val = data->fh.data.data_val;
1183 data->fh.data.data_val = NULL;
1184
1185 data->cb(0, nfs, nfsfh, data->private_data);
1186 free_nfs_cb_data(data);
1187 }
1188
1189 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1190 {
1191 int nfsmode = 0;
1192 ACCESS3args args;
1193
1194 if (data->continue_int & O_WRONLY) {
1195 nfsmode |= ACCESS3_MODIFY;
1196 }
1197 if (data->continue_int & O_RDWR) {
1198 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1199 }
1200 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1201 nfsmode |= ACCESS3_READ;
1202 }
1203
1204 memset(&args, 0, sizeof(ACCESS3args));
1205 args.object.data.data_len = data->fh.data.data_len;
1206 args.object.data.data_val = data->fh.data.data_val;
1207 args.access = nfsmode;
1208
1209 if (rpc_nfs3_access_async(nfs->rpc, nfs_open_cb, &args, data) != 0) {
1210 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
1211 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1212 free_nfs_cb_data(data);
1213 return -1;
1214 }
1215 return 0;
1216 }
1217
1218 int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1219 {
1220 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
1221 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1222 return -1;
1223 }
1224
1225 return 0;
1226 }
1227
1228
1229
1230
1231
1232 /*
1233 * Async pread()
1234 */
1235 static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1236 {
1237 struct nfs_cb_data *data = private_data;
1238 struct nfs_context *nfs = data->nfs;
1239 READ3res *res;
1240
1241 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1242
1243 if (status == RPC_STATUS_ERROR) {
1244 data->cb(-EFAULT, nfs, command_data, data->private_data);
1245 free_nfs_cb_data(data);
1246 return;
1247 }
1248 if (status == RPC_STATUS_CANCEL) {
1249 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1250 free_nfs_cb_data(data);
1251 return;
1252 }
1253
1254 res = command_data;
1255 if (res->status != NFS3_OK) {
1256 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1257 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1258 free_nfs_cb_data(data);
1259 return;
1260 }
1261
1262 data->nfsfh->offset += res->READ3res_u.resok.count;
1263 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
1264 free_nfs_cb_data(data);
1265 }
1266
1267 static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1268 {
1269 struct nfs_mcb_data *mdata = private_data;
1270 struct nfs_cb_data *data = mdata->data;
1271 struct nfs_context *nfs = data->nfs;
1272 READ3res *res;
1273
1274 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1275
1276 data->num_calls--;
1277
1278 if (status == RPC_STATUS_ERROR) {
1279 /* flag the failure but do not invoke callback until we have received all responses */
1280 data->error = 1;
1281 }
1282 if (status == RPC_STATUS_CANCEL) {
1283 /* flag the cancellation but do not invoke callback until we have received all responses */
1284 data->cancel = 1;
1285 }
1286
1287 /* reassemble the data into the buffer */
1288 if (status == RPC_STATUS_SUCCESS) {
1289 res = command_data;
1290 if (res->status != NFS3_OK) {
1291 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1292 data->error = 1;
1293 } else {
1294 if (res->READ3res_u.resok.count > 0) {
1295 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
1296 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
1297 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
1298 }
1299 }
1300 }
1301 }
1302
1303 if (data->num_calls > 0) {
1304 /* still waiting for more replies */
1305 free(mdata);
1306 return;
1307 }
1308
1309 if (data->error != 0) {
1310 data->cb(-EFAULT, nfs, command_data, data->private_data);
1311 free_nfs_cb_data(data);
1312 free(mdata);
1313 return;
1314 }
1315 if (data->cancel != 0) {
1316 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1317 free_nfs_cb_data(data);
1318 free(mdata);
1319 return;
1320 }
1321
1322 data->nfsfh->offset = data->max_offset;
1323 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
1324
1325 free_nfs_cb_data(data);
1326 free(mdata);
1327 }
1328
1329 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
1330 {
1331 struct nfs_cb_data *data;
1332
1333 data = malloc(sizeof(struct nfs_cb_data));
1334 if (data == NULL) {
1335 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1336 return -1;
1337 }
1338 memset(data, 0, sizeof(struct nfs_cb_data));
1339 data->nfs = nfs;
1340 data->cb = cb;
1341 data->private_data = private_data;
1342 data->nfsfh = nfsfh;
1343
1344 nfsfh->offset = offset;
1345
1346 if (count <= nfs_get_readmax(nfs)) {
1347 READ3args args;
1348
1349 memset(&args, 0, sizeof(READ3args));
1350 args.file.data.data_len = nfsfh->fh.data.data_len;
1351 args.file.data.data_val = nfsfh->fh.data.data_val;
1352 args.offset = offset;
1353 args.count = count;
1354
1355 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_cb, &args, data) != 0) {
1356 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1357 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1358 free_nfs_cb_data(data);
1359 return -1;
1360 }
1361 return 0;
1362 }
1363
1364 /* trying to read more than maximum server read size, we has to chop it up into smaller
1365 * reads and collect into a reassembly buffer.
1366 * we send all reads in parallel so that performance is still good.
1367 */
1368 data->max_offset = offset;
1369 data->start_offset = offset;
1370
1371 data->buffer = malloc(count);
1372 if (data->buffer == NULL) {
1373 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
1374 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1375 free_nfs_cb_data(data);
1376 return -1;
1377 }
1378
1379 while (count > 0) {
1380 uint64_t readcount = count;
1381 struct nfs_mcb_data *mdata;
1382 READ3args args;
1383
1384 if (readcount > nfs_get_readmax(nfs)) {
1385 readcount = nfs_get_readmax(nfs);
1386 }
1387
1388 mdata = malloc(sizeof(struct nfs_mcb_data));
1389 if (mdata == NULL) {
1390 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1391 return -1;
1392 }
1393 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1394 mdata->data = data;
1395 mdata->offset = offset;
1396 mdata->count = readcount;
1397
1398 memset(&args, 0, sizeof(READ3args));
1399 args.file.data.data_len = nfsfh->fh.data.data_len;
1400 args.file.data.data_val = nfsfh->fh.data.data_val;
1401 args.offset = offset;
1402 args.count = readcount;
1403
1404 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_mcb, &args, mdata) != 0) {
1405 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1406 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1407 free(mdata);
1408 return -1;
1409 }
1410
1411 count -= readcount;
1412 offset += readcount;
1413 data->num_calls++;
1414 }
1415
1416 return 0;
1417 }
1418
1419 /*
1420 * Async read()
1421 */
1422 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
1423 {
1424 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
1425 }
1426
1427
1428
1429 /*
1430 * Async pwrite()
1431 */
1432 static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1433 {
1434 struct nfs_cb_data *data = private_data;
1435 struct nfs_context *nfs = data->nfs;
1436 WRITE3res *res;
1437
1438 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1439
1440 if (status == RPC_STATUS_ERROR) {
1441 data->cb(-EFAULT, nfs, command_data, data->private_data);
1442 free_nfs_cb_data(data);
1443 return;
1444 }
1445 if (status == RPC_STATUS_CANCEL) {
1446 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1447 free_nfs_cb_data(data);
1448 return;
1449 }
1450
1451 res = command_data;
1452 if (res->status != NFS3_OK) {
1453 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1454 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1455 free_nfs_cb_data(data);
1456 return;
1457 }
1458
1459 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1460 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1461 free_nfs_cb_data(data);
1462 }
1463
1464 static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1465 {
1466 struct nfs_mcb_data *mdata = private_data;
1467 struct nfs_cb_data *data = mdata->data;
1468 struct nfs_context *nfs = data->nfs;
1469 WRITE3res *res;
1470
1471 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1472
1473 data->num_calls--;
1474
1475 if (status == RPC_STATUS_ERROR) {
1476 /* flag the failure but do not invoke callback until we have received all responses */
1477 data->error = 1;
1478 }
1479 if (status == RPC_STATUS_CANCEL) {
1480 /* flag the cancellation but do not invoke callback until we have received all responses */
1481 data->cancel = 1;
1482 }
1483
1484 if (status == RPC_STATUS_SUCCESS) {
1485 res = command_data;
1486 if (res->status != NFS3_OK) {
1487 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1488 data->error = 1;
1489 } else {
1490 if (res->WRITE3res_u.resok.count > 0) {
1491 if ((unsigned)data->max_offset < mdata->offset + res->WRITE3res_u.resok.count) {
1492 data->max_offset = mdata->offset + res->WRITE3res_u.resok.count;
1493 }
1494 }
1495 }
1496 }
1497
1498 if (data->num_calls > 0) {
1499 /* still waiting for more replies */
1500 free(mdata);
1501 return;
1502 }
1503
1504 if (data->error != 0) {
1505 data->cb(-EFAULT, nfs, command_data, data->private_data);
1506 free_nfs_cb_data(data);
1507 free(mdata);
1508 return;
1509 }
1510 if (data->cancel != 0) {
1511 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1512 free_nfs_cb_data(data);
1513 free(mdata);
1514 return;
1515 }
1516
1517 data->nfsfh->offset = data->max_offset;
1518 data->cb(data->max_offset - data->start_offset, nfs, NULL, data->private_data);
1519
1520 free_nfs_cb_data(data);
1521 free(mdata);
1522 }
1523
1524
1525 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)
1526 {
1527 struct nfs_cb_data *data;
1528
1529 data = malloc(sizeof(struct nfs_cb_data));
1530 if (data == NULL) {
1531 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1532 return -1;
1533 }
1534 memset(data, 0, sizeof(struct nfs_cb_data));
1535 data->nfs = nfs;
1536 data->cb = cb;
1537 data->private_data = private_data;
1538 data->nfsfh = nfsfh;
1539
1540 nfsfh->offset = offset;
1541
1542 if (count <= nfs_get_writemax(nfs)) {
1543 WRITE3args args;
1544
1545 memset(&args, 0, sizeof(WRITE3args));
1546 args.file.data.data_len = nfsfh->fh.data.data_len;
1547 args.file.data.data_val = nfsfh->fh.data.data_val;
1548 args.offset = offset;
1549 args.count = count;
1550 args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
1551 args.data.data_len = count;
1552 args.data.data_val = buf;
1553
1554 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_cb, &args, data) != 0) {
1555 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1556 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1557 free_nfs_cb_data(data);
1558 return -1;
1559 }
1560 return 0;
1561 }
1562
1563 /* trying to write more than maximum server write size, we has to chop it up into smaller
1564 * chunks.
1565 * we send all writes in parallel so that performance is still good.
1566 */
1567 data->max_offset = offset;
1568 data->start_offset = offset;
1569
1570 while (count > 0) {
1571 uint64_t writecount = count;
1572 struct nfs_mcb_data *mdata;
1573 WRITE3args args;
1574
1575 if (writecount > nfs_get_writemax(nfs)) {
1576 writecount = nfs_get_writemax(nfs);
1577 }
1578
1579 mdata = malloc(sizeof(struct nfs_mcb_data));
1580 if (mdata == NULL) {
1581 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1582 return -1;
1583 }
1584 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1585 mdata->data = data;
1586 mdata->offset = offset;
1587 mdata->count = writecount;
1588
1589 memset(&args, 0, sizeof(WRITE3args));
1590 args.file.data.data_len = nfsfh->fh.data.data_len;
1591 args.file.data.data_val = nfsfh->fh.data.data_val;
1592 args.offset = offset;
1593 args.count = writecount;
1594 args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
1595 args.data.data_len = writecount;
1596 args.data.data_val = &buf[offset - data->start_offset];
1597
1598 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_mcb, &args, mdata) != 0) {
1599 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1600 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1601 free(mdata);
1602 return -1;
1603 }
1604
1605 count -= writecount;
1606 offset += writecount;
1607 data->num_calls++;
1608 }
1609
1610 return 0;
1611 }
1612
1613 /*
1614 * Async write()
1615 */
1616 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1617 {
1618 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1619 }
1620
1621
1622
1623
1624 /*
1625 * close
1626 */
1627
1628 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1629 {
1630 if (nfsfh->fh.data.data_val != NULL){
1631 free(nfsfh->fh.data.data_val);
1632 nfsfh->fh.data.data_val = NULL;
1633 }
1634 free(nfsfh);
1635
1636 cb(0, nfs, NULL, private_data);
1637 return 0;
1638 };
1639
1640
1641
1642
1643
1644 /*
1645 * Async fstat()
1646 */
1647 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1648 {
1649 struct nfs_cb_data *data;
1650 struct GETATTR3args args;
1651
1652 data = malloc(sizeof(struct nfs_cb_data));
1653 if (data == NULL) {
1654 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1655 return -1;
1656 }
1657 memset(data, 0, sizeof(struct nfs_cb_data));
1658 data->nfs = nfs;
1659 data->cb = cb;
1660 data->private_data = private_data;
1661
1662 memset(&args, 0, sizeof(GETATTR3args));
1663 args.object.data.data_len = nfsfh->fh.data.data_len;
1664 args.object.data.data_val = nfsfh->fh.data.data_val;
1665
1666 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
1667 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1668 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1669 free_nfs_cb_data(data);
1670 return -1;
1671 }
1672 return 0;
1673 }
1674
1675
1676
1677 /*
1678 * Async fsync()
1679 */
1680 static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1681 {
1682 struct nfs_cb_data *data = private_data;
1683 struct nfs_context *nfs = data->nfs;
1684 COMMIT3res *res;
1685
1686 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1687
1688 if (status == RPC_STATUS_ERROR) {
1689 data->cb(-EFAULT, nfs, command_data, data->private_data);
1690 free_nfs_cb_data(data);
1691 return;
1692 }
1693 if (status == RPC_STATUS_CANCEL) {
1694 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1695 free_nfs_cb_data(data);
1696 return;
1697 }
1698
1699 res = command_data;
1700 if (res->status != NFS3_OK) {
1701 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1702 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1703 free_nfs_cb_data(data);
1704 return;
1705 }
1706
1707 data->cb(0, nfs, NULL, data->private_data);
1708 free_nfs_cb_data(data);
1709 }
1710
1711 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1712 {
1713 struct nfs_cb_data *data;
1714
1715 data = malloc(sizeof(struct nfs_cb_data));
1716 if (data == NULL) {
1717 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1718 return -1;
1719 }
1720 memset(data, 0, sizeof(struct nfs_cb_data));
1721 data->nfs = nfs;
1722 data->cb = cb;
1723 data->private_data = private_data;
1724
1725 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1726 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1727 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1728 free_nfs_cb_data(data);
1729 return -1;
1730 }
1731 return 0;
1732 }
1733
1734
1735
1736
1737 /*
1738 * Async ftruncate()
1739 */
1740 static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1741 {
1742 struct nfs_cb_data *data = private_data;
1743 struct nfs_context *nfs = data->nfs;
1744 SETATTR3res *res;
1745
1746 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1747
1748 if (status == RPC_STATUS_ERROR) {
1749 data->cb(-EFAULT, nfs, command_data, data->private_data);
1750 free_nfs_cb_data(data);
1751 return;
1752 }
1753 if (status == RPC_STATUS_CANCEL) {
1754 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1755 free_nfs_cb_data(data);
1756 return;
1757 }
1758
1759 res = command_data;
1760 if (res->status != NFS3_OK) {
1761 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1762 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1763 free_nfs_cb_data(data);
1764 return;
1765 }
1766
1767 data->cb(0, nfs, NULL, data->private_data);
1768 free_nfs_cb_data(data);
1769 }
1770
1771 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
1772 {
1773 struct nfs_cb_data *data;
1774 SETATTR3args args;
1775
1776 data = malloc(sizeof(struct nfs_cb_data));
1777 if (data == NULL) {
1778 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1779 return -1;
1780 }
1781 memset(data, 0, sizeof(struct nfs_cb_data));
1782 data->nfs = nfs;
1783 data->cb = cb;
1784 data->private_data = private_data;
1785
1786 memset(&args, 0, sizeof(SETATTR3args));
1787 args.object.data.data_len = nfsfh->fh.data.data_len;
1788 args.object.data.data_val = nfsfh->fh.data.data_val;
1789 args.new_attributes.size.set_it = 1;
1790 args.new_attributes.size.set_size3_u.size = length;
1791
1792 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1793 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1794 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1795 free_nfs_cb_data(data);
1796 return -1;
1797 }
1798 return 0;
1799 }
1800
1801
1802 /*
1803 * Async truncate()
1804 */
1805 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1806 {
1807 uint64_t offset = data->continue_int;
1808 struct nfsfh nfsfh;
1809
1810 nfsfh.fh.data.data_val = data->fh.data.data_val;
1811 nfsfh.fh.data.data_len = data->fh.data.data_len;
1812
1813 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1814 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1815 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1816 free_nfs_cb_data(data);
1817 return -1;
1818 }
1819 free_nfs_cb_data(data);
1820 return 0;
1821 }
1822
1823 int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
1824 {
1825 uint64_t offset;
1826
1827 offset = length;
1828
1829 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1830 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1831 return -1;
1832 }
1833
1834 return 0;
1835 }
1836
1837
1838
1839
1840 /*
1841 * Async mkdir()
1842 */
1843 static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1844 {
1845 MKDIR3res *res;
1846 struct nfs_cb_data *data = private_data;
1847 struct nfs_context *nfs = data->nfs;
1848 char *str = data->continue_data;
1849
1850 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1851
1852 str = &str[strlen(str) + 1];
1853
1854 if (status == RPC_STATUS_ERROR) {
1855 data->cb(-EFAULT, nfs, command_data, data->private_data);
1856 free_nfs_cb_data(data);
1857 return;
1858 }
1859 if (status == RPC_STATUS_CANCEL) {
1860 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1861 free_nfs_cb_data(data);
1862 return;
1863 }
1864
1865 res = command_data;
1866 if (res->status != NFS3_OK) {
1867 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));
1868 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1869 free_nfs_cb_data(data);
1870 return;
1871 }
1872
1873 data->cb(0, nfs, NULL, data->private_data);
1874 free_nfs_cb_data(data);
1875 }
1876
1877 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1878 {
1879 char *str = data->continue_data;
1880 MKDIR3args args;
1881
1882 str = &str[strlen(str) + 1];
1883
1884 memset(&args, 0, sizeof(MKDIR3args));
1885 args.where.dir.data.data_len = data->fh.data.data_len;
1886 args.where.dir.data.data_val = data->fh.data.data_val;
1887 args.where.name = str;
1888 args.attributes.mode.set_it = 1;
1889 args.attributes.mode.set_mode3_u.mode = 0755;
1890
1891 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
1892 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1893 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1894 free_nfs_cb_data(data);
1895 return -1;
1896 }
1897 return 0;
1898 }
1899
1900 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1901 {
1902 char *new_path;
1903 char *ptr;
1904
1905 new_path = strdup(path);
1906 if (new_path == NULL) {
1907 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1908 return -1;
1909 }
1910
1911 ptr = strrchr(new_path, '/');
1912 if (ptr == NULL) {
1913 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1914 return -1;
1915 }
1916 *ptr = 0;
1917
1918 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1919 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1920 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1921 return -1;
1922 }
1923
1924 return 0;
1925 }
1926
1927
1928
1929
1930
1931 /*
1932 * Async rmdir()
1933 */
1934 static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1935 {
1936 RMDIR3res *res;
1937 struct nfs_cb_data *data = private_data;
1938 struct nfs_context *nfs = data->nfs;
1939 char *str = data->continue_data;
1940
1941 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1942
1943 str = &str[strlen(str) + 1];
1944
1945 if (status == RPC_STATUS_ERROR) {
1946 data->cb(-EFAULT, nfs, command_data, data->private_data);
1947 free_nfs_cb_data(data);
1948 return;
1949 }
1950 if (status == RPC_STATUS_CANCEL) {
1951 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1952 free_nfs_cb_data(data);
1953 return;
1954 }
1955
1956 res = command_data;
1957 if (res->status != NFS3_OK) {
1958 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));
1959 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1960 free_nfs_cb_data(data);
1961 return;
1962 }
1963
1964 data->cb(0, nfs, NULL, data->private_data);
1965 free_nfs_cb_data(data);
1966 }
1967
1968 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1969 {
1970 char *str = data->continue_data;
1971
1972 str = &str[strlen(str) + 1];
1973
1974 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1975 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1976 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1977 free_nfs_cb_data(data);
1978 return -1;
1979 }
1980 return 0;
1981 }
1982
1983 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1984 {
1985 char *new_path;
1986 char *ptr;
1987
1988 new_path = strdup(path);
1989 if (new_path == NULL) {
1990 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1991 return -1;
1992 }
1993
1994 ptr = strrchr(new_path, '/');
1995 if (ptr == NULL) {
1996 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1997 return -1;
1998 }
1999 *ptr = 0;
2000
2001 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2002 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
2003 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2004 return -1;
2005 }
2006
2007 return 0;
2008 }
2009
2010
2011
2012
2013 /*
2014 * Async creat()
2015 */
2016 static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2017 {
2018 LOOKUP3res *res;
2019 struct nfs_cb_data *data = private_data;
2020 struct nfs_context *nfs = data->nfs;
2021 struct nfsfh *nfsfh;
2022 char *str = data->continue_data;
2023
2024 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2025
2026 if (status == RPC_STATUS_ERROR) {
2027 data->cb(-EFAULT, nfs, command_data, data->private_data);
2028 free_nfs_cb_data(data);
2029 return;
2030 }
2031 if (status == RPC_STATUS_CANCEL) {
2032 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2033 free_nfs_cb_data(data);
2034 return;
2035 }
2036
2037 str = &str[strlen(str) + 1];
2038 res = command_data;
2039 if (res->status != NFS3_OK) {
2040 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));
2041 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2042
2043 return;
2044 }
2045
2046 nfsfh = malloc(sizeof(struct nfsfh));
2047 if (nfsfh == NULL) {
2048 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
2049 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2050 free_nfs_cb_data(data);
2051 return;
2052 }
2053 memset(nfsfh, 0, sizeof(struct nfsfh));
2054
2055 /* copy the filehandle */
2056 nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
2057 nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
2058 memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
2059
2060 data->cb(0, nfs, nfsfh, data->private_data);
2061 free_nfs_cb_data(data);
2062 }
2063
2064
2065
2066 static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2067 {
2068 CREATE3res *res;
2069 struct nfs_cb_data *data = private_data;
2070 struct nfs_context *nfs = data->nfs;
2071 char *str = data->continue_data;
2072 LOOKUP3args args;
2073
2074 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2075
2076 if (status == RPC_STATUS_ERROR) {
2077 data->cb(-EFAULT, nfs, command_data, data->private_data);
2078 free_nfs_cb_data(data);
2079 return;
2080 }
2081 if (status == RPC_STATUS_CANCEL) {
2082 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2083 free_nfs_cb_data(data);
2084 return;
2085 }
2086
2087 str = &str[strlen(str) + 1];
2088 res = command_data;
2089 if (res->status != NFS3_OK) {
2090 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));
2091 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2092 free_nfs_cb_data(data);
2093 return;
2094 }
2095
2096 memset(&args, 0, sizeof(LOOKUP3args));
2097 args.what.dir.data.data_len = data->fh.data.data_len;
2098 args.what.dir.data.data_val = data->fh.data.data_val;
2099 args.what.name = str;
2100
2101 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_create_2_cb, &args, data) != 0) {
2102 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
2103 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2104 free_nfs_cb_data(data);
2105 return;
2106 }
2107 return;
2108 }
2109
2110 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2111 {
2112 char *str = data->continue_data;
2113 CREATE3args args;
2114
2115 str = &str[strlen(str) + 1];
2116
2117 memset(&args, 0, sizeof(CREATE3args));
2118 args.where.dir.data.data_len = data->fh.data.data_len;
2119 args.where.dir.data.data_val = data->fh.data.data_val;
2120 args.where.name = str;
2121 args.how.mode = UNCHECKED;
2122 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
2123 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
2124
2125 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
2126 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
2127 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2128 free_nfs_cb_data(data);
2129 return -1;
2130 }
2131 return 0;
2132 }
2133
2134 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2135 {
2136 char *new_path;
2137 char *ptr;
2138
2139 new_path = strdup(path);
2140 if (new_path == NULL) {
2141 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2142 return -1;
2143 }
2144
2145 ptr = strrchr(new_path, '/');
2146 if (ptr == NULL) {
2147 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2148 return -1;
2149 }
2150 *ptr = 0;
2151
2152 /* new_path now points to the parent directory, and beyond the nul terminator is the new directory to create */
2153 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
2154 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2155 return -1;
2156 }
2157
2158 return 0;
2159 }
2160
2161
2162
2163
2164 /*
2165 * Async unlink()
2166 */
2167 static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2168 {
2169 REMOVE3res *res;
2170 struct nfs_cb_data *data = private_data;
2171 struct nfs_context *nfs = data->nfs;
2172 char *str = data->continue_data;
2173
2174 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2175
2176 str = &str[strlen(str) + 1];
2177
2178 if (status == RPC_STATUS_ERROR) {
2179 data->cb(-EFAULT, nfs, command_data, data->private_data);
2180 free_nfs_cb_data(data);
2181 return;
2182 }
2183 if (status == RPC_STATUS_CANCEL) {
2184 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2185 free_nfs_cb_data(data);
2186 return;
2187 }
2188
2189 res = command_data;
2190 if (res->status != NFS3_OK) {
2191 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));
2192 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2193 free_nfs_cb_data(data);
2194 return;
2195 }
2196
2197 data->cb(0, nfs, NULL, data->private_data);
2198 free_nfs_cb_data(data);
2199 }
2200
2201 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2202 {
2203 char *str = data->continue_data;
2204
2205 str = &str[strlen(str) + 1];
2206
2207 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
2208 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
2209 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2210 free_nfs_cb_data(data);
2211 return -1;
2212 }
2213 return 0;
2214 }
2215
2216 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2217 {
2218 char *new_path;
2219 char *ptr;
2220
2221 new_path = strdup(path);
2222 if (new_path == NULL) {
2223 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2224 return -1;
2225 }
2226
2227 ptr = strrchr(new_path, '/');
2228 if (ptr == NULL) {
2229 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2230 return -1;
2231 }
2232 *ptr = 0;
2233
2234 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2235 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
2236 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2237 return -1;
2238 }
2239
2240 return 0;
2241 }
2242
2243
2244 /*
2245 * Async mknod()
2246 */
2247 struct mknod_cb_data {
2248 char *path;
2249 int mode;
2250 int major;
2251 int minor;
2252 };
2253
2254 static void free_mknod_cb_data(void *ptr)
2255 {
2256 struct mknod_cb_data *data = ptr;
2257
2258 free(data->path);
2259 free(data);
2260 }
2261
2262 static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2263 {
2264 MKNOD3res *res;
2265 struct nfs_cb_data *data = private_data;
2266 struct nfs_context *nfs = data->nfs;
2267 char *str = data->continue_data;
2268
2269 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2270
2271 str = &str[strlen(str) + 1];
2272
2273 if (status == RPC_STATUS_ERROR) {
2274 data->cb(-EFAULT, nfs, command_data, data->private_data);
2275 free_nfs_cb_data(data);
2276 return;
2277 }
2278 if (status == RPC_STATUS_CANCEL) {
2279 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2280 free_nfs_cb_data(data);
2281 return;
2282 }
2283
2284 res = command_data;
2285 if (res->status != NFS3_OK) {
2286 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));
2287 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2288 free_nfs_cb_data(data);
2289 return;
2290 }
2291
2292 data->cb(0, nfs, NULL, data->private_data);
2293 free_nfs_cb_data(data);
2294 }
2295
2296 static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2297 {
2298 struct mknod_cb_data *cb_data = data->continue_data;
2299 char *str = cb_data->path;
2300
2301 str = &str[strlen(str) + 1];
2302
2303 if (rpc_nfs_mknod_async(nfs->rpc, nfs_mknod_cb, &data->fh, str, cb_data->mode, cb_data->major, cb_data->minor, data) != 0) {
2304 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2305 free_nfs_cb_data(data);
2306 return -1;
2307 }
2308 return 0;
2309 }
2310
2311 int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
2312 {
2313 char *ptr;
2314 struct mknod_cb_data *cb_data;
2315
2316 cb_data = malloc(sizeof(struct mknod_cb_data));
2317 if (cb_data == NULL) {
2318 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
2319 return -1;
2320 }
2321
2322 cb_data->path = strdup(path);
2323 if (cb_data->path == NULL) {
2324 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2325 free(cb_data);
2326 return -1;
2327 }
2328
2329 ptr = strrchr(cb_data->path, '/');
2330 if (ptr == NULL) {
2331 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2332 return -1;
2333 }
2334 *ptr = 0;
2335
2336 cb_data->mode = mode;
2337 cb_data->major = major(dev);
2338 cb_data->minor = minor(dev);
2339
2340 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2341 if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
2342 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2343 free_mknod_cb_data(cb_data);
2344 return -1;
2345 }
2346
2347 return 0;
2348 }
2349
2350 /*
2351 * Async opendir()
2352 */
2353
2354 /* ReadDirPlus Emulation Callback data */
2355 struct rdpe_cb_data {
2356 int getattrcount;
2357 int status;
2358 struct nfs_cb_data *data;
2359 };
2360
2361 /* ReadDirPlus Emulation LOOKUP Callback data */
2362 struct rdpe_lookup_cb_data {
2363 struct rdpe_cb_data *rdpe_cb_data;
2364 struct nfsdirent *nfsdirent;
2365 };
2366
2367 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
2368 static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2369 {
2370 LOOKUP3res *res = command_data;
2371 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
2372 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
2373 struct nfs_cb_data *data = rdpe_cb_data->data;
2374 struct nfsdir *nfsdir = data->continue_data;
2375 struct nfs_context *nfs = data->nfs;
2376 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
2377
2378 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2379
2380 free(rdpe_lookup_cb_data);
2381
2382 rdpe_cb_data->getattrcount--;
2383
2384 if (status == RPC_STATUS_ERROR) {
2385 rdpe_cb_data->status = RPC_STATUS_ERROR;
2386 }
2387 if (status == RPC_STATUS_CANCEL) {
2388 rdpe_cb_data->status = RPC_STATUS_CANCEL;
2389 }
2390 if (status == RPC_STATUS_SUCCESS && res->status != NFS3_OK) {
2391 rdpe_cb_data->status = RPC_STATUS_ERROR;
2392 }
2393 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
2394 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
2395 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
2396
2397 nfsdirent->type = attributes->type;
2398 nfsdirent->mode = attributes->mode;
2399 nfsdirent->size = attributes->size;
2400
2401 nfsdirent->atime.tv_sec = attributes->atime.seconds;
2402 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
2403 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
2404 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
2405 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
2406 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
2407 }
2408 }
2409
2410 if (rdpe_cb_data->getattrcount == 0) {
2411 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
2412 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2413 nfs_free_nfsdir(nfsdir);
2414 } else {
2415 data->cb(0, nfs, nfsdir, data->private_data);
2416 }
2417 free(rdpe_cb_data);
2418
2419 data->continue_data = NULL;
2420 free_nfs_cb_data(data);
2421 }
2422 }
2423
2424 static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2425 {
2426 READDIR3res *res = command_data;
2427 struct nfs_cb_data *data = private_data;
2428 struct nfs_context *nfs = data->nfs;
2429 struct nfsdir *nfsdir = data->continue_data;
2430 struct nfsdirent *nfsdirent;
2431 struct entry3 *entry;
2432 uint64_t cookie;
2433 struct rdpe_cb_data *rdpe_cb_data;
2434
2435 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2436
2437 if (status == RPC_STATUS_ERROR) {
2438 data->cb(-EFAULT, nfs, command_data, data->private_data);
2439 nfs_free_nfsdir(nfsdir);
2440 data->continue_data = NULL;
2441 free_nfs_cb_data(data);
2442 return;
2443 }
2444
2445 if (status == RPC_STATUS_CANCEL) {
2446 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2447 nfs_free_nfsdir(nfsdir);
2448 data->continue_data = NULL;
2449 free_nfs_cb_data(data);
2450 return;
2451 }
2452
2453 if (res->status != NFS3_OK) {
2454 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));
2455 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2456 nfs_free_nfsdir(nfsdir);
2457 data->continue_data = NULL;
2458 free_nfs_cb_data(data);
2459 return;
2460 }
2461
2462 entry =res->READDIR3res_u.resok.reply.entries;
2463 while (entry != NULL) {
2464 nfsdirent = malloc(sizeof(struct nfsdirent));
2465 if (nfsdirent == NULL) {
2466 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2467 nfs_free_nfsdir(nfsdir);
2468 data->continue_data = NULL;
2469 free_nfs_cb_data(data);
2470 return;
2471 }
2472 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2473 nfsdirent->name = strdup(entry->name);
2474 if (nfsdirent->name == NULL) {
2475 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2476 nfs_free_nfsdir(nfsdir);
2477 data->continue_data = NULL;
2478 free_nfs_cb_data(data);
2479 return;
2480 }
2481 nfsdirent->inode = entry->fileid;
2482
2483 nfsdirent->next = nfsdir->entries;
2484 nfsdir->entries = nfsdirent;
2485
2486 cookie = entry->cookie;
2487 entry = entry->nextentry;
2488 }
2489
2490 if (res->READDIR3res_u.resok.reply.eof == 0) {
2491 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 8192, data) != 0) {
2492 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2493 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2494 nfs_free_nfsdir(nfsdir);
2495 data->continue_data = NULL;
2496 free_nfs_cb_data(data);
2497 return;
2498 }
2499 return;
2500 }
2501
2502 /* steal the dirhandle */
2503 nfsdir->current = nfsdir->entries;
2504
2505 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
2506 rdpe_cb_data->getattrcount = 0;
2507 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
2508 rdpe_cb_data->data = data;
2509 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
2510 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
2511 LOOKUP3args args;
2512
2513 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
2514 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
2515 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
2516
2517 memset(&args, 0, sizeof(LOOKUP3args));
2518 args.what.dir.data.data_len = data->fh.data.data_len;
2519 args.what.dir.data.data_val = data->fh.data.data_val;
2520 args.what.name = nfsdirent->name;
2521
2522 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_opendir3_cb, &args, rdpe_lookup_cb_data) != 0) {
2523 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
2524
2525 /* if we have already commands in flight, we cant just stop, we have to wait for the
2526 * commands in flight to complete
2527 */
2528 if (rdpe_cb_data->getattrcount > 0) {
2529 rdpe_cb_data->status = RPC_STATUS_ERROR;
2530 free(rdpe_lookup_cb_data);
2531 return;
2532 }
2533
2534 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2535 nfs_free_nfsdir(nfsdir);
2536 data->continue_data = NULL;
2537 free_nfs_cb_data(data);
2538 free(rdpe_lookup_cb_data);
2539 free(rdpe_cb_data);
2540 return;
2541 }
2542 rdpe_cb_data->getattrcount++;
2543 }
2544 }
2545
2546
2547 static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2548 {
2549 READDIRPLUS3res *res = command_data;
2550 struct nfs_cb_data *data = private_data;
2551 struct nfs_context *nfs = data->nfs;
2552 struct nfsdir *nfsdir = data->continue_data;
2553 struct entryplus3 *entry;
2554 uint64_t cookie;
2555
2556 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2557
2558 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
2559 cookieverf3 cv;
2560
2561 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2562 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2563 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2564 nfs_free_nfsdir(nfsdir);
2565 data->continue_data = NULL;
2566 free_nfs_cb_data(data);
2567 return;
2568 }
2569 return;
2570 }
2571
2572 if (status == RPC_STATUS_CANCEL) {
2573 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2574 nfs_free_nfsdir(nfsdir);
2575 data->continue_data = NULL;
2576 free_nfs_cb_data(data);
2577 return;
2578 }
2579
2580 if (res->status != NFS3_OK) {
2581 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));
2582 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2583 nfs_free_nfsdir(nfsdir);
2584 data->continue_data = NULL;
2585 free_nfs_cb_data(data);
2586 return;
2587 }
2588
2589 entry =res->READDIRPLUS3res_u.resok.reply.entries;
2590 while (entry != NULL) {
2591 struct nfsdirent *nfsdirent;
2592
2593 nfsdirent = malloc(sizeof(struct nfsdirent));
2594 if (nfsdirent == NULL) {
2595 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2596 nfs_free_nfsdir(nfsdir);
2597 data->continue_data = NULL;
2598 free_nfs_cb_data(data);
2599 return;
2600 }
2601 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2602 nfsdirent->name = strdup(entry->name);
2603 if (nfsdirent->name == NULL) {
2604 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2605 nfs_free_nfsdir(nfsdir);
2606 data->continue_data = NULL;
2607 free_nfs_cb_data(data);
2608 return;
2609 }
2610 nfsdirent->inode = entry->fileid;
2611 if (entry->name_attributes.attributes_follow) {
2612 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
2613 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
2614 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
2615
2616 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
2617 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
2618 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
2619 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
2620 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
2621 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
2622 }
2623
2624 nfsdirent->next = nfsdir->entries;
2625 nfsdir->entries = nfsdirent;
2626
2627 cookie = entry->cookie;
2628 entry = entry->nextentry;
2629 }
2630
2631 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
2632 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIRPLUS3res_u.resok.cookieverf, 8192, data) != 0) {
2633 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2634 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2635 nfs_free_nfsdir(nfsdir);
2636 data->continue_data = NULL;
2637 free_nfs_cb_data(data);
2638 return;
2639 }
2640 return;
2641 }
2642
2643 /* steal the dirhandle */
2644 data->continue_data = NULL;
2645 nfsdir->current = nfsdir->entries;
2646
2647 data->cb(0, nfs, nfsdir, data->private_data);
2648 free_nfs_cb_data(data);
2649 }
2650
2651 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2652 {
2653 cookieverf3 cv;
2654
2655 memset(cv, 0, sizeof(cookieverf3));
2656 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2657 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2658 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2659 free_nfs_cb_data(data);
2660 return -1;
2661 }
2662 return 0;
2663 }
2664
2665 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2666 {
2667 struct nfsdir *nfsdir;
2668
2669 nfsdir = malloc(sizeof(struct nfsdir));
2670 if (nfsdir == NULL) {
2671 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
2672 return -1;
2673 }
2674 memset(nfsdir, 0, sizeof(struct nfsdir));
2675
2676 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
2677 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2678 return -1;
2679 }
2680
2681 return 0;
2682 }
2683
2684
2685 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2686 {
2687 struct nfsdirent *nfsdirent = nfsdir->current;
2688
2689 if (nfsdir->current != NULL) {
2690 nfsdir->current = nfsdir->current->next;
2691 }
2692 return nfsdirent;
2693 }
2694
2695
2696 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2697 {
2698 nfs_free_nfsdir(nfsdir);
2699 }
2700
2701
2702
2703
2704
2705
2706
2707 /*
2708 * Async lseek()
2709 */
2710 struct lseek_cb_data {
2711 struct nfs_context *nfs;
2712 struct nfsfh *nfsfh;
2713 uint64_t offset;
2714 nfs_cb cb;
2715 void *private_data;
2716 };
2717
2718 static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2719 {
2720 GETATTR3res *res;
2721 struct lseek_cb_data *data = private_data;
2722 struct nfs_context *nfs = data->nfs;
2723
2724 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2725
2726 if (status == RPC_STATUS_ERROR) {
2727 data->cb(-EFAULT, nfs, command_data, data->private_data);
2728 free(data);
2729 return;
2730 }
2731 if (status == RPC_STATUS_CANCEL) {
2732 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2733 free(data);
2734 return;
2735 }
2736
2737 res = command_data;
2738 if (res->status != NFS3_OK) {
2739 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2740 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2741 free(data);
2742 return;
2743 }
2744
2745 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
2746 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
2747 free(data);
2748 }
2749
2750 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
2751 {
2752 struct lseek_cb_data *data;
2753 struct GETATTR3args args;
2754
2755 if (whence == SEEK_SET) {
2756 nfsfh->offset = offset;
2757 cb(0, nfs, &nfsfh->offset, private_data);
2758 return 0;
2759 }
2760 if (whence == SEEK_CUR) {
2761 nfsfh->offset += offset;
2762 cb(0, nfs, &nfsfh->offset, private_data);
2763 return 0;
2764 }
2765
2766 data = malloc(sizeof(struct lseek_cb_data));
2767 if (data == NULL) {
2768 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
2769 return -1;
2770 }
2771
2772 data->nfs = nfs;
2773 data->nfsfh = nfsfh;
2774 data->offset = offset;
2775 data->cb = cb;
2776 data->private_data = private_data;
2777
2778 memset(&args, 0, sizeof(GETATTR3args));
2779 args.object.data.data_len = nfsfh->fh.data.data_len;
2780 args.object.data.data_val = nfsfh->fh.data.data_val;
2781
2782 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_lseek_1_cb, &args, data) != 0) {
2783 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
2784 free(data);
2785 return -1;
2786 }
2787 return 0;
2788 }
2789
2790
2791
2792
2793 /*
2794 * Async statvfs()
2795 */
2796 static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2797 {
2798 FSSTAT3res *res;
2799 struct nfs_cb_data *data = private_data;
2800 struct nfs_context *nfs = data->nfs;
2801 struct statvfs svfs;
2802
2803 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2804
2805 if (status == RPC_STATUS_ERROR) {
2806 data->cb(-EFAULT, nfs, command_data, data->private_data);
2807 free_nfs_cb_data(data);
2808 return;
2809 }
2810 if (status == RPC_STATUS_CANCEL) {
2811 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2812 free_nfs_cb_data(data);
2813 return;
2814 }
2815
2816 res = command_data;
2817 if (res->status != NFS3_OK) {
2818 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));
2819 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2820 free_nfs_cb_data(data);
2821 return;
2822 }
2823
2824 svfs.f_bsize = 4096;
2825 svfs.f_frsize = 4096;
2826 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
2827 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
2828 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
2829 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
2830 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
2831 #if !defined(ANDROID)
2832 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
2833 svfs.f_fsid = 0;
2834 svfs.f_flag = 0;
2835 svfs.f_namemax = 256;
2836 #endif
2837
2838 data->cb(0, nfs, &svfs, data->private_data);
2839 free_nfs_cb_data(data);
2840 }
2841
2842 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2843 {
2844 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
2845 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
2846 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2847 free_nfs_cb_data(data);
2848 return -1;
2849 }
2850 return 0;
2851 }
2852
2853 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2854 {
2855 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
2856 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2857 return -1;
2858 }
2859
2860 return 0;
2861 }
2862
2863
2864
2865
2866 /*
2867 * Async readlink()
2868 */
2869 static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2870 {
2871 READLINK3res *res;
2872 struct nfs_cb_data *data = private_data;
2873 struct nfs_context *nfs = data->nfs;
2874
2875 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2876
2877 if (status == RPC_STATUS_ERROR) {
2878 data->cb(-EFAULT, nfs, command_data, data->private_data);
2879 free_nfs_cb_data(data);
2880 return;
2881 }
2882 if (status == RPC_STATUS_CANCEL) {
2883 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2884 free_nfs_cb_data(data);
2885 return;
2886 }
2887
2888 res = command_data;
2889 if (res->status != NFS3_OK) {
2890 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));
2891 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2892 free_nfs_cb_data(data);
2893 return;
2894 }
2895
2896
2897 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
2898 free_nfs_cb_data(data);
2899 }
2900
2901 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2902 {
2903 READLINK3args args;
2904
2905 args.symlink.data.data_len = data->fh.data.data_len;
2906 args.symlink.data.data_val = data->fh.data.data_val;
2907
2908 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
2909 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
2910 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2911 free_nfs_cb_data(data);
2912 return -1;
2913 }
2914 return 0;
2915 }
2916
2917 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2918 {
2919 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
2920 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2921 return -1;
2922 }
2923
2924 return 0;
2925 }
2926
2927
2928
2929
2930 /*
2931 * Async chmod()
2932 */
2933 static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2934 {
2935 struct nfs_cb_data *data = private_data;
2936 struct nfs_context *nfs = data->nfs;
2937 SETATTR3res *res;
2938
2939 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2940
2941 if (status == RPC_STATUS_ERROR) {
2942 data->cb(-EFAULT, nfs, command_data, data->private_data);
2943 free_nfs_cb_data(data);
2944 return;
2945 }
2946 if (status == RPC_STATUS_CANCEL) {
2947 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2948 free_nfs_cb_data(data);
2949 return;
2950 }
2951
2952 res = command_data;
2953 if (res->status != NFS3_OK) {
2954 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2955 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2956 free_nfs_cb_data(data);
2957 return;
2958 }
2959
2960 data->cb(0, nfs, NULL, data->private_data);
2961 free_nfs_cb_data(data);
2962 }
2963
2964 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2965 {
2966 SETATTR3args args;
2967
2968 memset(&args, 0, sizeof(SETATTR3args));
2969 args.object.data.data_len = data->fh.data.data_len;
2970 args.object.data.data_val = data->fh.data.data_val;
2971 args.new_attributes.mode.set_it = 1;
2972 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2973
2974 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2975 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2976 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2977 free_nfs_cb_data(data);
2978 return -1;
2979 }
2980 return 0;
2981 }
2982
2983
2984 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2985 {
2986 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
2987 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2988 return -1;
2989 }
2990
2991 return 0;
2992 }
2993
2994 /*
2995 * Async fchmod()
2996 */
2997 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2998 {
2999 struct nfs_cb_data *data;
3000
3001 data = malloc(sizeof(struct nfs_cb_data));
3002 if (data == NULL) {
3003 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
3004 return -1;
3005 }
3006 memset(data, 0, sizeof(struct nfs_cb_data));
3007 data->nfs = nfs;
3008 data->cb = cb;
3009 data->private_data = private_data;
3010 data->continue_int = mode;
3011 data->fh.data.data_len = nfsfh->fh.data.data_len;
3012 data->fh.data.data_val = malloc(data->fh.data.data_len);
3013 if (data->fh.data.data_val == NULL) {
3014 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3015 free_nfs_cb_data(data);
3016 return -1;
3017 }
3018 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3019
3020 if (nfs_chmod_continue_internal(nfs, data) != 0) {
3021 free_nfs_cb_data(data);
3022 return -1;
3023 }
3024
3025 return 0;
3026 }
3027
3028
3029
3030 /*
3031 * Async chown()
3032 */
3033 static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3034 {
3035 struct nfs_cb_data *data = private_data;
3036 struct nfs_context *nfs = data->nfs;
3037 SETATTR3res *res;
3038
3039 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3040
3041 if (status == RPC_STATUS_ERROR) {
3042 data->cb(-EFAULT, nfs, command_data, data->private_data);
3043 free_nfs_cb_data(data);
3044 return;
3045 }
3046 if (status == RPC_STATUS_CANCEL) {
3047 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3048 free_nfs_cb_data(data);
3049 return;
3050 }
3051
3052 res = command_data;
3053 if (res->status != NFS3_OK) {
3054 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3055 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3056 free_nfs_cb_data(data);
3057 return;
3058 }
3059
3060 data->cb(0, nfs, NULL, data->private_data);
3061 free_nfs_cb_data(data);
3062 }
3063
3064 struct nfs_chown_data {
3065 uid_t uid;
3066 gid_t gid;
3067 };
3068
3069 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3070 {
3071 SETATTR3args args;
3072 struct nfs_chown_data *chown_data = data->continue_data;
3073
3074 memset(&args, 0, sizeof(SETATTR3args));
3075 args.object.data.data_len = data->fh.data.data_len;
3076 args.object.data.data_val = data->fh.data.data_val;
3077 if (chown_data->uid != (uid_t)-1) {
3078 args.new_attributes.uid.set_it = 1;
3079 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
3080 }
3081 if (chown_data->gid != (gid_t)-1) {
3082 args.new_attributes.gid.set_it = 1;
3083 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
3084 }
3085
3086 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
3087 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3088 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3089 free_nfs_cb_data(data);
3090 return -1;
3091 }
3092 return 0;
3093 }
3094
3095
3096 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
3097 {
3098 struct nfs_chown_data *chown_data;
3099
3100 chown_data = malloc(sizeof(struct nfs_chown_data));
3101 if (chown_data == NULL) {
3102 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3103 return -1;
3104 }
3105
3106 chown_data->uid = uid;
3107 chown_data->gid = gid;
3108
3109 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
3110 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3111 return -1;
3112 }
3113
3114 return 0;
3115 }
3116
3117
3118 /*
3119 * Async fchown()
3120 */
3121 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
3122 {
3123 struct nfs_cb_data *data;
3124 struct nfs_chown_data *chown_data;
3125
3126 chown_data = malloc(sizeof(struct nfs_chown_data));
3127 if (chown_data == NULL) {
3128 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3129 return -1;
3130 }
3131
3132 chown_data->uid = uid;
3133 chown_data->gid = gid;
3134
3135
3136 data = malloc(sizeof(struct nfs_cb_data));
3137 if (data == NULL) {
3138 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
3139 return -1;
3140 }
3141 memset(data, 0, sizeof(struct nfs_cb_data));
3142 data->nfs = nfs;
3143 data->cb = cb;
3144 data->private_data = private_data;
3145 data->continue_data = chown_data;
3146 data->fh.data.data_len = nfsfh->fh.data.data_len;
3147 data->fh.data.data_val = malloc(data->fh.data.data_len);
3148 if (data->fh.data.data_val == NULL) {
3149 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3150 free_nfs_cb_data(data);
3151 return -1;
3152 }
3153 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3154
3155
3156 if (nfs_chown_continue_internal(nfs, data) != 0) {
3157 free_nfs_cb_data(data);
3158 return -1;
3159 }
3160
3161 return 0;
3162 }
3163
3164
3165
3166
3167
3168 /*
3169 * Async utimes()
3170 */
3171 static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3172 {
3173 struct nfs_cb_data *data = private_data;
3174 struct nfs_context *nfs = data->nfs;
3175 SETATTR3res *res;
3176
3177 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3178
3179 if (status == RPC_STATUS_ERROR) {
3180 data->cb(-EFAULT, nfs, command_data, data->private_data);
3181 free_nfs_cb_data(data);
3182 return;
3183 }
3184 if (status == RPC_STATUS_CANCEL) {
3185 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3186 free_nfs_cb_data(data);
3187 return;
3188 }
3189
3190 res = command_data;
3191 if (res->status != NFS3_OK) {
3192 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3193 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3194 free_nfs_cb_data(data);
3195 return;
3196 }
3197
3198 data->cb(0, nfs, NULL, data->private_data);
3199 free_nfs_cb_data(data);
3200 }
3201
3202 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3203 {
3204 SETATTR3args args;
3205 struct timeval *utimes_data = data->continue_data;
3206
3207 memset(&args, 0, sizeof(SETATTR3args));
3208 args.object.data.data_len = data->fh.data.data_len;
3209 args.object.data.data_val = data->fh.data.data_val;
3210 if (utimes_data != NULL) {
3211 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
3212 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
3213 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
3214 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
3215 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
3216 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
3217 } else {
3218 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
3219 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
3220 }
3221
3222 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
3223 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3224 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3225 free_nfs_cb_data(data);
3226 return -1;
3227 }
3228 return 0;
3229 }
3230
3231
3232 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
3233 {
3234 struct timeval *new_times = NULL;
3235
3236 if (times != NULL) {
3237 new_times = malloc(sizeof(struct timeval)*2);
3238 if (new_times == NULL) {
3239 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3240 return -1;
3241 }
3242
3243 memcpy(new_times, times, sizeof(struct timeval)*2);
3244 }
3245
3246 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3247 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3248 return -1;
3249 }
3250
3251 return 0;
3252 }
3253
3254 /*
3255 * Async utime()
3256 */
3257 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
3258 {
3259 struct timeval *new_times = NULL;
3260
3261 if (times != NULL) {
3262 new_times = malloc(sizeof(struct timeval)*2);
3263 if (new_times == NULL) {
3264 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3265 return -1;
3266 }
3267
3268 new_times[0].tv_sec = times->actime;
3269 new_times[0].tv_usec = 0;
3270 new_times[1].tv_sec = times->modtime;
3271 new_times[1].tv_usec = 0;
3272 }
3273
3274 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3275 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3276 return -1;
3277 }
3278
3279 return 0;
3280 }
3281
3282
3283 /*
3284 * Async access()
3285 */
3286 static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3287 {
3288 ACCESS3res *res;
3289 struct nfs_cb_data *data = private_data;
3290 struct nfs_context *nfs = data->nfs;
3291 unsigned int nfsmode = 0;
3292
3293 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3294
3295 if (status == RPC_STATUS_ERROR) {
3296 data->cb(-EFAULT, nfs, command_data, data->private_data);
3297 free_nfs_cb_data(data);
3298 return;
3299 }
3300 if (status == RPC_STATUS_CANCEL) {
3301 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3302 free_nfs_cb_data(data);
3303 return;
3304 }
3305
3306 res = command_data;
3307 if (res->status != NFS3_OK) {
3308 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));
3309 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3310 free_nfs_cb_data(data);
3311 return;
3312 }
3313
3314 if (data->continue_int & R_OK) {
3315 nfsmode |= ACCESS3_READ;
3316 }
3317 if (data->continue_int & W_OK) {
3318 nfsmode |= ACCESS3_MODIFY;
3319 }
3320 if (data->continue_int & X_OK) {
3321 nfsmode |= ACCESS3_EXECUTE;
3322 }
3323
3324 if (res->ACCESS3res_u.resok.access != nfsmode) {
3325 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
3326 nfsmode&ACCESS3_READ?'r':'-',
3327 nfsmode&ACCESS3_MODIFY?'w':'-',
3328 nfsmode&ACCESS3_EXECUTE?'x':'-',
3329 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
3330 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
3331 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
3332 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
3333 free_nfs_cb_data(data);
3334 return;
3335 }
3336
3337 data->cb(0, nfs, NULL, data->private_data);
3338 free_nfs_cb_data(data);
3339 }
3340
3341 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3342 {
3343 int nfsmode = 0;
3344 ACCESS3args args;
3345
3346 if (data->continue_int & R_OK) {
3347 nfsmode |= ACCESS3_READ;
3348 }
3349 if (data->continue_int & W_OK) {
3350 nfsmode |= ACCESS3_MODIFY;
3351 }
3352 if (data->continue_int & X_OK) {
3353 nfsmode |= ACCESS3_EXECUTE;
3354 }
3355
3356 memset(&args, 0, sizeof(ACCESS3args));
3357 args.object.data.data_len = data->fh.data.data_len;
3358 args.object.data.data_val = data->fh.data.data_val;
3359 args.access = nfsmode;
3360
3361 if (rpc_nfs3_access_async(nfs->rpc, nfs_access_cb, &args, data) != 0) {
3362 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
3363 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3364 free_nfs_cb_data(data);
3365 return -1;
3366 }
3367 return 0;
3368 }
3369
3370 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3371 {
3372 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
3373 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3374 return -1;
3375 }
3376
3377 return 0;
3378 }
3379
3380
3381
3382 /*
3383 * Async symlink()
3384 */
3385 struct nfs_symlink_data {
3386 char *oldpath;
3387 char *newpathparent;
3388 char *newpathobject;
3389 };
3390
3391 static void free_nfs_symlink_data(void *mem)
3392 {
3393 struct nfs_symlink_data *data = mem;
3394
3395 if (data->oldpath != NULL) {
3396 free(data->oldpath);
3397 }
3398 if (data->newpathparent != NULL) {
3399 free(data->newpathparent);
3400 }
3401 if (data->newpathobject != NULL) {
3402 free(data->newpathobject);
3403 }
3404 free(data);
3405 }
3406
3407 static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3408 {
3409 SYMLINK3res *res;
3410 struct nfs_cb_data *data = private_data;
3411 struct nfs_context *nfs = data->nfs;
3412 struct nfs_symlink_data *symlink_data = data->continue_data;
3413
3414 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3415
3416 if (status == RPC_STATUS_ERROR) {
3417 data->cb(-EFAULT, nfs, command_data, data->private_data);
3418 free_nfs_cb_data(data);
3419 return;
3420 }
3421 if (status == RPC_STATUS_CANCEL) {
3422 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3423 free_nfs_cb_data(data);
3424 return;
3425 }
3426
3427 res = command_data;
3428 if (res->status != NFS3_OK) {
3429 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));
3430 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3431 free_nfs_cb_data(data);
3432 return;
3433 }
3434
3435 data->cb(0, nfs, NULL, data->private_data);
3436 free_nfs_cb_data(data);
3437 }
3438
3439 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3440 {
3441 struct nfs_symlink_data *symlink_data = data->continue_data;
3442 SYMLINK3args sa;
3443
3444 memset(&sa, 0, sizeof(SYMLINK3args));
3445 sa.where.dir.data.data_len = data->fh.data.data_len;
3446 sa.where.dir.data.data_val = data->fh.data.data_val;
3447 sa.where.name = symlink_data->newpathobject;
3448 sa.symlink.symlink_attributes.mode.set_it = 1;
3449 sa.symlink.symlink_attributes.mode.set_mode3_u.mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH;
3450 sa.symlink.symlink_data = symlink_data->oldpath;
3451
3452 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &sa, data) != 0) {
3453 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
3454 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3455 free_nfs_cb_data(data);
3456 return -1;
3457 }
3458 return 0;
3459 }
3460
3461 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3462 {
3463 char *ptr;
3464 struct nfs_symlink_data *symlink_data;
3465
3466 symlink_data = malloc(sizeof(struct nfs_symlink_data));
3467 if (symlink_data == NULL) {
3468 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
3469 return -1;
3470 }
3471 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
3472
3473 symlink_data->oldpath = strdup(oldpath);
3474 if (symlink_data->oldpath == NULL) {
3475 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3476 free_nfs_symlink_data(symlink_data);
3477 return -1;
3478 }
3479
3480 symlink_data->newpathparent = strdup(newpath);
3481 if (symlink_data->newpathparent == NULL) {
3482 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3483 free_nfs_symlink_data(symlink_data);
3484 return -1;
3485 }
3486
3487 ptr = strrchr(symlink_data->newpathparent, '/');
3488 if (ptr == NULL) {
3489 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3490 free_nfs_symlink_data(symlink_data);
3491 return -1;
3492 }
3493 *ptr = 0;
3494 ptr++;
3495
3496 symlink_data->newpathobject = strdup(ptr);
3497 if (symlink_data->newpathobject == NULL) {
3498 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3499 free_nfs_symlink_data(symlink_data);
3500 return -1;
3501 }
3502
3503 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
3504 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3505 return -1;
3506 }
3507
3508 return 0;
3509 }
3510
3511
3512
3513 /*
3514 * Async rename()
3515 */
3516 struct nfs_rename_data {
3517 char *oldpath;
3518 char *oldobject;
3519 struct nfs_fh3 olddir;
3520 char *newpath;
3521 char *newobject;
3522 struct nfs_fh3 newdir;
3523 };
3524
3525 static void free_nfs_rename_data(void *mem)
3526 {
3527 struct nfs_rename_data *data = mem;
3528
3529 if (data->oldpath != NULL) {
3530 free(data->oldpath);
3531 }
3532 if (data->olddir.data.data_val != NULL) {
3533 free(data->olddir.data.data_val);
3534 }
3535 if (data->newpath != NULL) {
3536 free(data->newpath);
3537 }
3538 if (data->newdir.data.data_val != NULL) {
3539 free(data->newdir.data.data_val);
3540 }
3541 free(data);
3542 }
3543
3544 static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3545 {
3546 RENAME3res *res;
3547 struct nfs_cb_data *data = private_data;
3548 struct nfs_context *nfs = data->nfs;
3549 struct nfs_rename_data *rename_data = data->continue_data;
3550
3551 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3552
3553 if (status == RPC_STATUS_ERROR) {
3554 data->cb(-EFAULT, nfs, command_data, data->private_data);
3555 free_nfs_cb_data(data);
3556 return;
3557 }
3558 if (status == RPC_STATUS_CANCEL) {
3559 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3560 free_nfs_cb_data(data);
3561 return;
3562 }
3563
3564 res = command_data;
3565 if (res->status != NFS3_OK) {
3566 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));
3567 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3568 free_nfs_cb_data(data);
3569 return;
3570 }
3571
3572 data->cb(0, nfs, NULL, data->private_data);
3573 free_nfs_cb_data(data);
3574 }
3575
3576 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3577 {
3578 struct nfs_rename_data *rename_data = data->continue_data;
3579
3580 /* steal the filehandle */
3581 rename_data->newdir.data.data_len = data->fh.data.data_len;
3582 rename_data->newdir.data.data_val = data->fh.data.data_val;
3583 data->fh.data.data_val = NULL;
3584
3585 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
3586 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
3587 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3588 free_nfs_cb_data(data);
3589 return -1;
3590 }
3591 return 0;
3592 }
3593
3594
3595 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3596 {
3597 struct nfs_rename_data *rename_data = data->continue_data;
3598
3599 /* steal the filehandle */
3600 rename_data->olddir.data.data_len = data->fh.data.data_len;
3601 rename_data->olddir.data.data_val = data->fh.data.data_val;
3602 data->fh.data.data_val = NULL;
3603
3604 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) {
3605 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
3606 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3607 free_nfs_cb_data(data);
3608 return -1;
3609 }
3610 data->continue_data = NULL;
3611 free_nfs_cb_data(data);
3612
3613 return 0;
3614 }
3615
3616
3617 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3618 {
3619 char *ptr;
3620 struct nfs_rename_data *rename_data;
3621
3622 rename_data = malloc(sizeof(struct nfs_rename_data));
3623 if (rename_data == NULL) {
3624 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
3625 return -1;
3626 }
3627 memset(rename_data, 0, sizeof(struct nfs_rename_data));
3628
3629 rename_data->oldpath = strdup(oldpath);
3630 if (rename_data->oldpath == NULL) {
3631 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3632 free_nfs_rename_data(rename_data);
3633 return -1;
3634 }
3635 ptr = strrchr(rename_data->oldpath, '/');
3636 if (ptr == NULL) {
3637 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3638 free_nfs_rename_data(rename_data);
3639 return -1;
3640 }
3641 *ptr = 0;
3642 ptr++;
3643 rename_data->oldobject = ptr;
3644
3645
3646 rename_data->newpath = strdup(newpath);
3647 if (rename_data->newpath == NULL) {
3648 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3649 free_nfs_rename_data(rename_data);
3650 return -1;
3651 }
3652 ptr = strrchr(rename_data->newpath, '/');
3653 if (ptr == NULL) {
3654 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3655 free_nfs_rename_data(rename_data);
3656 return -1;
3657 }
3658 *ptr = 0;
3659 ptr++;
3660 rename_data->newobject = ptr;
3661
3662
3663 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
3664 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3665 return -1;
3666 }
3667
3668 return 0;
3669 }
3670
3671
3672 /*
3673 * Async link()
3674 */
3675 struct nfs_link_data {
3676 char *oldpath;
3677 struct nfs_fh3 oldfh;
3678 char *newpath;
3679 char *newobject;
3680 struct nfs_fh3 newdir;
3681 };
3682
3683 static void free_nfs_link_data(void *mem)
3684 {
3685 struct nfs_link_data *data = mem;
3686
3687 if (data->oldpath != NULL) {
3688 free(data->oldpath);
3689 }
3690 if (data->oldfh.data.data_val != NULL) {
3691 free(data->oldfh.data.data_val);
3692 }
3693 if (data->newpath != NULL) {
3694 free(data->newpath);
3695 }
3696 if (data->newdir.data.data_val != NULL) {
3697 free(data->newdir.data.data_val);
3698 }
3699 free(data);
3700 }
3701
3702 static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3703 {
3704 LINK3res *res;
3705 struct nfs_cb_data *data = private_data;
3706 struct nfs_context *nfs = data->nfs;
3707 struct nfs_link_data *link_data = data->continue_data;
3708
3709 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3710
3711 if (status == RPC_STATUS_ERROR) {
3712 data->cb(-EFAULT, nfs, command_data, data->private_data);
3713 free_nfs_cb_data(data);
3714 return;
3715 }
3716 if (status == RPC_STATUS_CANCEL) {
3717 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3718 free_nfs_cb_data(data);
3719 return;
3720 }
3721
3722 res = command_data;
3723 if (res->status != NFS3_OK) {
3724 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));
3725 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3726 free_nfs_cb_data(data);
3727 return;
3728 }
3729
3730 data->cb(0, nfs, NULL, data->private_data);
3731 free_nfs_cb_data(data);
3732 }
3733
3734 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3735 {
3736 struct nfs_link_data *link_data = data->continue_data;
3737
3738 /* steal the filehandle */
3739 link_data->newdir.data.data_len = data->fh.data.data_len;
3740 link_data->newdir.data.data_val = data->fh.data.data_val;
3741 data->fh.data.data_val = NULL;
3742
3743 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
3744 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
3745 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3746 free_nfs_cb_data(data);
3747 return -1;
3748 }
3749 return 0;
3750 }
3751
3752
3753 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3754 {
3755 struct nfs_link_data *link_data = data->continue_data;
3756
3757 /* steal the filehandle */
3758 link_data->oldfh.data.data_len = data->fh.data.data_len;
3759 link_data->oldfh.data.data_val = data->fh.data.data_val;
3760 data->fh.data.data_val = NULL;
3761
3762 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) {
3763 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
3764 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3765 free_nfs_cb_data(data);
3766 return -1;
3767 }
3768 data->continue_data = NULL;
3769 free_nfs_cb_data(data);
3770
3771 return 0;
3772 }
3773
3774
3775 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3776 {
3777 char *ptr;
3778 struct nfs_link_data *link_data;
3779
3780 link_data = malloc(sizeof(struct nfs_link_data));
3781 if (link_data == NULL) {
3782 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
3783 return -1;
3784 }
3785 memset(link_data, 0, sizeof(struct nfs_link_data));
3786
3787 link_data->oldpath = strdup(oldpath);
3788 if (link_data->oldpath == NULL) {
3789 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3790 free_nfs_link_data(link_data);
3791 return -1;
3792 }
3793
3794 link_data->newpath = strdup(newpath);
3795 if (link_data->newpath == NULL) {
3796 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3797 free_nfs_link_data(link_data);
3798 return -1;
3799 }
3800 ptr = strrchr(link_data->newpath, '/');
3801 if (ptr == NULL) {
3802 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3803 free_nfs_link_data(link_data);
3804 return -1;
3805 }
3806 *ptr = 0;
3807 ptr++;
3808 link_data->newobject = ptr;
3809
3810
3811 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
3812 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3813 return -1;
3814 }
3815
3816 return 0;
3817 }
3818
3819
3820 //qqq replace later with lseek()
3821 uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
3822 {
3823 return nfsfh->offset;
3824 }
3825
3826
3827
3828 /*
3829 * Get the maximum supported READ3 size by the server
3830 */
3831 uint64_t nfs_get_readmax(struct nfs_context *nfs)
3832 {
3833 return nfs->readmax;
3834 }
3835
3836 /*
3837 * Get the maximum supported WRITE3 size by the server
3838 */
3839 uint64_t nfs_get_writemax(struct nfs_context *nfs)
3840 {
3841 return nfs->writemax;
3842 }
3843
3844 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
3845 {
3846 va_list ap;
3847 char *str = NULL;
3848
3849 va_start(ap, error_string);
3850 str = malloc(1024);
3851 vsnprintf(str, 1024, error_string, ap);
3852 if (nfs->rpc->error_string != NULL) {
3853 free(nfs->rpc->error_string);
3854 }
3855 nfs->rpc->error_string = str;
3856 va_end(ap);
3857 }
3858
3859
3860
3861 struct mount_cb_data {
3862 rpc_cb cb;
3863 void *private_data;
3864 char *server;
3865 };
3866
3867 static void free_mount_cb_data(struct mount_cb_data *data)
3868 {
3869 if (data->server != NULL) {
3870 free(data->server);
3871 data->server = NULL;
3872 }
3873
3874 free(data);
3875 }
3876
3877 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3878 {
3879 struct mount_cb_data *data = private_data;
3880
3881 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3882
3883 if (status == RPC_STATUS_ERROR) {
3884 data->cb(rpc, -EFAULT, command_data, data->private_data);
3885 free_mount_cb_data(data);
3886 return;
3887 }
3888 if (status == RPC_STATUS_CANCEL) {
3889 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3890 free_mount_cb_data(data);
3891 return;
3892 }
3893
3894 data->cb(rpc, 0, command_data, data->private_data);
3895 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
3896 rpc_set_error(rpc, "Failed to disconnect\n");
3897 }
3898 free_mount_cb_data(data);
3899 }
3900
3901 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3902 {
3903 struct mount_cb_data *data = private_data;
3904
3905 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3906
3907 /* Dont want any more callbacks even if the socket is closed */
3908 rpc->connect_cb = NULL;
3909
3910 if (status == RPC_STATUS_ERROR) {
3911 data->cb(rpc, -EFAULT, command_data, data->private_data);
3912 free_mount_cb_data(data);
3913 return;
3914 }
3915 if (status == RPC_STATUS_CANCEL) {
3916 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3917 free_mount_cb_data(data);
3918 return;
3919 }
3920
3921 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
3922 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3923 free_mount_cb_data(data);
3924 return;
3925 }
3926 }
3927
3928 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3929 {
3930 struct mount_cb_data *data = private_data;
3931 uint32_t mount_port;
3932
3933 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3934
3935 if (status == RPC_STATUS_ERROR) {
3936 data->cb(rpc, -EFAULT, command_data, data->private_data);
3937 free_mount_cb_data(data);
3938 return;
3939 }
3940 if (status == RPC_STATUS_CANCEL) {
3941 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3942 free_mount_cb_data(data);
3943 return;
3944 }
3945
3946 mount_port = *(uint32_t *)command_data;
3947 if (mount_port == 0) {
3948 rpc_set_error(rpc, "RPC error. Mount program is not available");
3949 data->cb(rpc, -ENOENT, command_data, data->private_data);
3950 free_mount_cb_data(data);
3951 return;
3952 }
3953
3954 rpc_disconnect(rpc, "normal disconnect");
3955 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
3956 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3957 free_mount_cb_data(data);
3958 return;
3959 }
3960 }
3961
3962 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3963 {
3964 struct mount_cb_data *data = private_data;
3965
3966 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3967
3968 if (status == RPC_STATUS_ERROR) {
3969 data->cb(rpc, -EFAULT, command_data, data->private_data);
3970 free_mount_cb_data(data);
3971 return;
3972 }
3973 if (status == RPC_STATUS_CANCEL) {
3974 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3975 free_mount_cb_data(data);
3976 return;
3977 }
3978
3979 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
3980 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3981 free_mount_cb_data(data);
3982 return;
3983 }
3984 }
3985
3986 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3987 {
3988 struct mount_cb_data *data = private_data;
3989
3990 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3991
3992 /* Dont want any more callbacks even if the socket is closed */
3993 rpc->connect_cb = NULL;
3994
3995 if (status == RPC_STATUS_ERROR) {
3996 data->cb(rpc, -EFAULT, command_data, data->private_data);
3997 free_mount_cb_data(data);
3998 return;
3999 }
4000 if (status == RPC_STATUS_CANCEL) {
4001 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4002 free_mount_cb_data(data);
4003 return;
4004 }
4005
4006 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
4007 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4008 free_mount_cb_data(data);
4009 return;
4010 }
4011 }
4012
4013 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
4014 {
4015 struct mount_cb_data *data;
4016
4017 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4018
4019 data = malloc(sizeof(struct mount_cb_data));
4020 if (data == NULL) {
4021 return -1;
4022 }
4023 memset(data, 0, sizeof(struct mount_cb_data));
4024 data->cb = cb;
4025 data->private_data = private_data;
4026 data->server = strdup(server);
4027 if (data->server == NULL) {
4028 free_mount_cb_data(data);
4029 return -1;
4030 }
4031 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
4032 free_mount_cb_data(data);
4033 return -1;
4034 }
4035
4036 return 0;
4037 }
4038
4039 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
4040 {
4041 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
4042 return nfs->rpc;
4043 }
4044
4045 const char *nfs_get_server(struct nfs_context *nfs) {
4046 return nfs->server;
4047 }
4048
4049 const char *nfs_get_export(struct nfs_context *nfs) {
4050 return nfs->export;
4051 }
4052
4053 const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
4054 return &nfs->rootfh;
4055 }
4056
4057 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
4058 return &nfsfh->fh;
4059 }
libnfs Piment Noir Debian package repository