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Assign the whole nfs_fh3 structure instead of element by element when possible
[deb_libnfs.git] / lib / libnfs.c
1 /*
2 Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17 /*
18 * High level api to nfs filesystems
19 */
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #ifdef AROS
25 #include "aros_compat.h"
26 #endif
27
28 #ifdef WIN32
29 #include "win32_compat.h"
30 #endif
31
32 #ifdef HAVE_UTIME_H
33 #include <utime.h>
34 #endif
35
36 #ifdef ANDROID
37 #define statvfs statfs
38 #endif
39
40 #define _GNU_SOURCE
41
42 #ifdef HAVE_UNISTD_H
43 #include <unistd.h>
44 #endif
45
46 #ifdef HAVE_SYS_VFS_H
47 #include <sys/vfs.h>
48 #endif
49
50 #ifdef HAVE_SYS_STATVFS_H
51 #include <sys/statvfs.h>
52 #endif
53
54 #ifdef HAVE_NETINET_IN_H
55 #include <netinet/in.h>
56 #endif
57
58 #ifdef HAVE_STRINGS_H
59 #include <strings.h>
60 #endif
61
62 #include <stdio.h>
63 #include <stdarg.h>
64 #include <stdlib.h>
65 #include <string.h>
66 #include <assert.h>
67 #include <errno.h>
68 #include <sys/types.h>
69 #include <sys/stat.h>
70 #include <fcntl.h>
71 #include "libnfs-zdr.h"
72 #include "libnfs.h"
73 #include "libnfs-raw.h"
74 #include "libnfs-raw-mount.h"
75 #include "libnfs-raw-nfs.h"
76 #include "libnfs-private.h"
77
78 struct nfsdir {
79 struct nfsdirent *entries;
80 struct nfsdirent *current;
81 };
82
83 struct nfsfh {
84 struct nfs_fh3 fh;
85 int is_sync;
86 uint64_t offset;
87 };
88
89 struct nfs_context {
90 struct rpc_context *rpc;
91 char *server;
92 char *export;
93 struct nfs_fh3 rootfh;
94 uint64_t readmax;
95 uint64_t writemax;
96 };
97
98 void nfs_free_nfsdir(struct nfsdir *nfsdir)
99 {
100 while (nfsdir->entries) {
101 struct nfsdirent *dirent = nfsdir->entries->next;
102 if (nfsdir->entries->name != NULL) {
103 free(nfsdir->entries->name);
104 }
105 free(nfsdir->entries);
106 nfsdir->entries = dirent;
107 }
108 free(nfsdir);
109 }
110
111 struct nfs_cb_data;
112 typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
113
114 struct nfs_cb_data {
115 struct nfs_context *nfs;
116 struct nfsfh *nfsfh;
117 char *saved_path, *path;
118
119 nfs_cb cb;
120 void *private_data;
121
122 continue_func continue_cb;
123 void *continue_data;
124 void (*free_continue_data)(void *);
125 int continue_int;
126
127 struct nfs_fh3 fh;
128
129 /* for multi-read/write calls. */
130 int error;
131 int cancel;
132 int num_calls;
133 uint64_t start_offset, max_offset;
134 char *buffer;
135 };
136
137 struct nfs_mcb_data {
138 struct nfs_cb_data *data;
139 uint64_t offset;
140 uint64_t count;
141 };
142
143 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
144
145
146 void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
147 {
148 rpc_set_auth(nfs->rpc, auth);
149 }
150
151 int nfs_get_fd(struct nfs_context *nfs)
152 {
153 return rpc_get_fd(nfs->rpc);
154 }
155
156 int nfs_queue_length(struct nfs_context *nfs)
157 {
158 return rpc_queue_length(nfs->rpc);
159 }
160
161 int nfs_which_events(struct nfs_context *nfs)
162 {
163 return rpc_which_events(nfs->rpc);
164 }
165
166 int nfs_service(struct nfs_context *nfs, int revents)
167 {
168 return rpc_service(nfs->rpc, revents);
169 }
170
171 char *nfs_get_error(struct nfs_context *nfs)
172 {
173 return rpc_get_error(nfs->rpc);
174 };
175
176 static int nfs_set_context_args(struct nfs_context *nfs, char *arg, char *val)
177 {
178 if (!strncmp(arg, "tcp-syncnt", 10)) {
179 rpc_set_tcp_syncnt(nfs_get_rpc_context(nfs), atoi(val));
180 } else if (!strncmp(arg, "uid", 3)) {
181 rpc_set_uid(nfs_get_rpc_context(nfs), atoi(val));
182 } else if (!strncmp(arg, "gid", 3)) {
183 rpc_set_gid(nfs_get_rpc_context(nfs), atoi(val));
184 }
185 return 0;
186 }
187
188 static struct nfs_url *nfs_parse_url(struct nfs_context *nfs, const char *url, int dir, int incomplete)
189 {
190 struct nfs_url *urls;
191 char *strp, *flagsp, *strp2;
192
193 if (strncmp(url, "nfs://", 6)) {
194 rpc_set_error(nfs->rpc, "Invalid URL specified");
195 return NULL;
196 }
197
198 urls = malloc(sizeof(struct nfs_url));
199 if (urls == NULL) {
200 rpc_set_error(nfs->rpc, "Out of memory");
201 return NULL;
202 }
203
204 memset(urls, 0x00, sizeof(struct nfs_url));
205 urls->server = strdup(url + 6);
206 if (urls->server == NULL) {
207 nfs_destroy_url(urls);
208 rpc_set_error(nfs->rpc, "Out of memory");
209 return NULL;
210 }
211
212 if (urls->server[0] == '/' || urls->server[0] == '\0' ||
213 urls->server[0] == '?') {
214 if (incomplete) {
215 flagsp = strchr(urls->server, '?');
216 goto flags;
217 }
218 nfs_destroy_url(urls);
219 rpc_set_error(nfs->rpc, "Invalid server string");
220 return NULL;
221 }
222
223 strp = strchr(urls->server, '/');
224 if (strp == NULL) {
225 if (incomplete) {
226 flagsp = strchr(urls->server, '?');
227 goto flags;
228 }
229 nfs_destroy_url(urls);
230 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
231 return NULL;
232 }
233
234 urls->path = strdup(strp);
235 if (urls->path == NULL) {
236 nfs_destroy_url(urls);
237 rpc_set_error(nfs->rpc, "Out of memory");
238 return NULL;
239 }
240 *strp = 0;
241
242 if (dir) {
243 flagsp = strchr(urls->path, '?');
244 goto flags;
245 }
246
247 strp = strrchr(urls->path, '/');
248 if (strp == NULL) {
249 if (incomplete) {
250 flagsp = strchr(urls->path, '?');
251 goto flags;
252 }
253 nfs_destroy_url(urls);
254 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
255 return NULL;
256 }
257 urls->file = strdup(strp);
258 if (urls->path == NULL) {
259 nfs_destroy_url(urls);
260 rpc_set_error(nfs->rpc, "Out of memory");
261 return NULL;
262 }
263 *strp = 0;
264 flagsp = strchr(urls->file, '?');
265
266 flags:
267 if (flagsp) {
268 *flagsp = 0;
269 }
270
271 if (urls->file && !strlen(urls->file)) {
272 free(urls->file);
273 urls->file = NULL;
274 if (!incomplete) {
275 nfs_destroy_url(urls);
276 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
277 return NULL;
278 }
279 }
280
281 while (flagsp != NULL && *(flagsp+1) != 0) {
282 strp = flagsp + 1;
283 flagsp = strchr(strp, '&');
284 if (flagsp) {
285 *flagsp = 0;
286 }
287 strp2 = strchr(strp, '=');
288 if (strp2) {
289 *strp2 = 0;
290 strp2++;
291 nfs_set_context_args(nfs, strp, strp2);
292 }
293 }
294
295 if (urls->server && strlen(urls->server) <= 1) {
296 free(urls->server);
297 urls->server = NULL;
298 }
299
300 return urls;
301 }
302
303 struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url)
304 {
305 return nfs_parse_url(nfs, url, 0, 0);
306 }
307
308 struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url)
309 {
310 return nfs_parse_url(nfs, url, 1, 0);
311 }
312
313 struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url)
314 {
315 return nfs_parse_url(nfs, url, 0, 1);
316 }
317
318
319 void nfs_destroy_url(struct nfs_url *url)
320 {
321 if (url) {
322 free(url->server);
323 free(url->path);
324 free(url->file);
325 }
326 free(url);
327 }
328
329 struct nfs_context *nfs_init_context(void)
330 {
331 struct nfs_context *nfs;
332
333 nfs = malloc(sizeof(struct nfs_context));
334 if (nfs == NULL) {
335 return NULL;
336 }
337 nfs->rpc = rpc_init_context();
338 if (nfs->rpc == NULL) {
339 free(nfs);
340 return NULL;
341 }
342
343 nfs->server = NULL;
344 nfs->export = NULL;
345
346 nfs->rootfh.data.data_len = 0;
347 nfs->rootfh.data.data_val = NULL;
348
349 return nfs;
350 }
351
352 void nfs_destroy_context(struct nfs_context *nfs)
353 {
354 rpc_destroy_context(nfs->rpc);
355 nfs->rpc = NULL;
356
357 if (nfs->server) {
358 free(nfs->server);
359 nfs->server = NULL;
360 }
361
362 if (nfs->export) {
363 free(nfs->export);
364 nfs->export = NULL;
365 }
366
367 if (nfs->rootfh.data.data_val != NULL) {
368 free(nfs->rootfh.data.data_val);
369 nfs->rootfh.data.data_val = NULL;
370 }
371
372 free(nfs);
373 }
374
375 struct rpc_cb_data {
376 char *server;
377 uint32_t program;
378 uint32_t version;
379
380 rpc_cb cb;
381 void *private_data;
382 };
383
384 void free_rpc_cb_data(struct rpc_cb_data *data)
385 {
386 free(data->server);
387 data->server = NULL;
388 free(data);
389 }
390
391 static void rpc_connect_program_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
392 {
393 struct rpc_cb_data *data = private_data;
394
395 assert(rpc->magic == RPC_CONTEXT_MAGIC);
396
397 /* Dont want any more callbacks even if the socket is closed */
398 rpc->connect_cb = NULL;
399
400 if (status == RPC_STATUS_ERROR) {
401 data->cb(rpc, status, command_data, data->private_data);
402 free_rpc_cb_data(data);
403 return;
404 }
405 if (status == RPC_STATUS_CANCEL) {
406 data->cb(rpc, status, "Command was cancelled", data->private_data);
407 free_rpc_cb_data(data);
408 return;
409 }
410
411 data->cb(rpc, status, NULL, data->private_data);
412 free_rpc_cb_data(data);
413 }
414
415 static void rpc_connect_program_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
416 {
417 struct rpc_cb_data *data = private_data;
418 uint32_t rpc_port;
419
420 assert(rpc->magic == RPC_CONTEXT_MAGIC);
421
422 if (status == RPC_STATUS_ERROR) {
423 data->cb(rpc, status, command_data, data->private_data);
424 free_rpc_cb_data(data);
425 return;
426 }
427 if (status == RPC_STATUS_CANCEL) {
428 data->cb(rpc, status, "Command was cancelled", data->private_data);
429 free_rpc_cb_data(data);
430 return;
431 }
432
433 rpc_port = *(uint32_t *)command_data;
434 if (rpc_port == 0) {
435 rpc_set_error(rpc, "RPC error. Program is not available on %s", data->server);
436 data->cb(rpc, RPC_STATUS_ERROR, rpc_get_error(rpc), data->private_data);
437 free_rpc_cb_data(data);
438 return;
439 }
440
441 rpc_disconnect(rpc, "normal disconnect");
442 if (rpc_connect_async(rpc, data->server, rpc_port, rpc_connect_program_4_cb, data) != 0) {
443 data->cb(rpc, status, command_data, data->private_data);
444 free_rpc_cb_data(data);
445 return;
446 }
447 }
448
449 static void rpc_connect_program_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
450 {
451 struct rpc_cb_data *data = private_data;
452
453 assert(rpc->magic == RPC_CONTEXT_MAGIC);
454
455 if (status == RPC_STATUS_ERROR) {
456 data->cb(rpc, status, command_data, data->private_data);
457 free_rpc_cb_data(data);
458 return;
459 }
460 if (status == RPC_STATUS_CANCEL) {
461 data->cb(rpc, status, "Command was cancelled", data->private_data);
462 free_rpc_cb_data(data);
463 return;
464 }
465
466 if (rpc_pmap_getport_async(rpc, data->program, data->version, IPPROTO_TCP, rpc_connect_program_3_cb, private_data) != 0) {
467 data->cb(rpc, status, command_data, data->private_data);
468 free_rpc_cb_data(data);
469 return;
470 }
471 }
472
473 static void rpc_connect_program_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
474 {
475 struct rpc_cb_data *data = private_data;
476
477 assert(rpc->magic == RPC_CONTEXT_MAGIC);
478
479 /* Dont want any more callbacks even if the socket is closed */
480 rpc->connect_cb = NULL;
481
482 if (status == RPC_STATUS_ERROR) {
483 data->cb(rpc, status, command_data, data->private_data);
484 free_rpc_cb_data(data);
485 return;
486 }
487 if (status == RPC_STATUS_CANCEL) {
488 data->cb(rpc, status, "Command was cancelled", data->private_data);
489 free_rpc_cb_data(data);
490 return;
491 }
492
493 if (rpc_pmap_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
494 data->cb(rpc, status, command_data, data->private_data);
495 free_rpc_cb_data(data);
496 return;
497 }
498 }
499
500 int rpc_connect_program_async(struct rpc_context *rpc, char *server, int program, int version, rpc_cb cb, void *private_data)
501 {
502 struct rpc_cb_data *data;
503
504 data = malloc(sizeof(struct rpc_cb_data));
505 if (data == NULL) {
506 return -1;
507 }
508 memset(data, 0, sizeof(struct rpc_cb_data));
509 data->server = strdup(server);
510 data->program = program;
511 data->version = version;
512
513 data->cb = cb;
514 data->private_data = private_data;
515
516 if (rpc_connect_async(rpc, server, 111, rpc_connect_program_1_cb, data) != 0) {
517 rpc_set_error(rpc, "Failed to start connection");
518 free_rpc_cb_data(data);
519 return -1;
520 }
521 return 0;
522 }
523
524 void free_nfs_cb_data(struct nfs_cb_data *data)
525 {
526 if (data->saved_path != NULL) {
527 free(data->saved_path);
528 data->saved_path = NULL;
529 }
530
531 if (data->continue_data != NULL) {
532 data->free_continue_data(data->continue_data);
533 data->continue_data = NULL;
534 }
535
536 if (data->fh.data.data_val != NULL) {
537 free(data->fh.data.data_val);
538 data->fh.data.data_val = NULL;
539 }
540
541 if (data->buffer != NULL) {
542 free(data->buffer);
543 data->buffer = NULL;
544 }
545
546 free(data);
547 }
548
549
550
551
552
553 static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
554 {
555 struct nfs_cb_data *data = private_data;
556 struct nfs_context *nfs = data->nfs;
557
558 assert(rpc->magic == RPC_CONTEXT_MAGIC);
559
560 if (status == RPC_STATUS_ERROR) {
561 data->cb(-EFAULT, nfs, command_data, data->private_data);
562 free_nfs_cb_data(data);
563 return;
564 }
565 if (status == RPC_STATUS_CANCEL) {
566 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
567 free_nfs_cb_data(data);
568 return;
569 }
570
571 data->cb(0, nfs, NULL, data->private_data);
572 free_nfs_cb_data(data);
573 }
574
575 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
576 {
577 struct nfs_cb_data *data = private_data;
578 struct nfs_context *nfs = data->nfs;
579 FSINFO3res *res = command_data;
580 struct GETATTR3args args;
581
582 assert(rpc->magic == RPC_CONTEXT_MAGIC);
583
584 if (status == RPC_STATUS_ERROR) {
585 data->cb(-EFAULT, nfs, command_data, data->private_data);
586 free_nfs_cb_data(data);
587 return;
588 }
589 if (status == RPC_STATUS_CANCEL) {
590 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
591 free_nfs_cb_data(data);
592 return;
593 }
594
595 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
596 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
597
598 memset(&args, 0, sizeof(GETATTR3args));
599 args.object = nfs->rootfh;
600
601 if (rpc_nfs3_getattr_async(rpc, nfs_mount_10_cb, &args, data) != 0) {
602 data->cb(-ENOMEM, nfs, command_data, data->private_data);
603 free_nfs_cb_data(data);
604 return;
605 }
606 }
607
608 static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
609 {
610 struct nfs_cb_data *data = private_data;
611 struct nfs_context *nfs = data->nfs;
612 struct FSINFO3args args;
613
614 assert(rpc->magic == RPC_CONTEXT_MAGIC);
615
616 if (status == RPC_STATUS_ERROR) {
617 data->cb(-EFAULT, nfs, command_data, data->private_data);
618 free_nfs_cb_data(data);
619 return;
620 }
621 if (status == RPC_STATUS_CANCEL) {
622 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
623 free_nfs_cb_data(data);
624 return;
625 }
626
627 args.fsroot = nfs->rootfh;
628 if (rpc_nfs3_fsinfo_async(rpc, nfs_mount_9_cb, &args, 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_nfs3_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_mount3_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_mount3_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 = *fh;
970 args.what.name = path;
971
972 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, &args, data) != 0) {
973 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
974 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
975 free_nfs_cb_data(data);
976 return -1;
977 }
978 return 0;
979 }
980
981 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)
982 {
983 struct nfs_cb_data *data;
984
985 if (path[0] != 0 && path[0] != '/') {
986 rpc_set_error(nfs->rpc, "Pathname is not absolute %s", path);
987 return -1;
988 }
989
990 data = malloc(sizeof(struct nfs_cb_data));
991 if (data == NULL) {
992 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
993 return -1;
994 }
995 memset(data, 0, sizeof(struct nfs_cb_data));
996 data->nfs = nfs;
997 data->cb = cb;
998 data->continue_cb = continue_cb;
999 data->continue_data = continue_data;
1000 data->free_continue_data = free_continue_data;
1001 data->continue_int = continue_int;
1002 data->private_data = private_data;
1003 data->saved_path = strdup(path);
1004 if (data->saved_path == NULL) {
1005 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
1006 free_nfs_cb_data(data);
1007 return -1;
1008 }
1009 data->path = data->saved_path;
1010
1011 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
1012 /* return 0 here since the callback will be invoked if there is a failure */
1013 return 0;
1014 }
1015 return 0;
1016 }
1017
1018
1019
1020
1021
1022 /*
1023 * Async stat()
1024 */
1025 static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1026 {
1027 GETATTR3res *res;
1028 struct nfs_cb_data *data = private_data;
1029 struct nfs_context *nfs = data->nfs;
1030 struct stat st;
1031
1032 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1033
1034 if (status == RPC_STATUS_ERROR) {
1035 data->cb(-EFAULT, nfs, command_data, data->private_data);
1036 free_nfs_cb_data(data);
1037 return;
1038 }
1039 if (status == RPC_STATUS_CANCEL) {
1040 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1041 free_nfs_cb_data(data);
1042 return;
1043 }
1044
1045 res = command_data;
1046 if (res->status != NFS3_OK) {
1047 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));
1048 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1049 free_nfs_cb_data(data);
1050 return;
1051 }
1052
1053 st.st_dev = -1;
1054 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1055 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
1056 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
1057 st.st_mode |= S_IFDIR ;
1058 }
1059 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
1060 st.st_mode |= S_IFREG ;
1061 }
1062 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1063 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1064 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1065 st.st_rdev = 0;
1066 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
1067 #ifndef WIN32
1068 st.st_blksize = 4096;
1069 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
1070 #endif//WIN32
1071 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1072 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1073 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1074
1075 data->cb(0, nfs, &st, data->private_data);
1076 free_nfs_cb_data(data);
1077 }
1078
1079 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1080 {
1081 struct GETATTR3args args;
1082
1083 memset(&args, 0, sizeof(GETATTR3args));
1084 args.object = data->fh;
1085
1086 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
1087 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1088 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1089 free_nfs_cb_data(data);
1090 return -1;
1091 }
1092 return 0;
1093 }
1094
1095 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1096 {
1097 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
1098 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1099 return -1;
1100 }
1101
1102 return 0;
1103 }
1104
1105
1106
1107
1108
1109 /*
1110 * Async open()
1111 */
1112 static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1113 {
1114 ACCESS3res *res;
1115 struct nfs_cb_data *data = private_data;
1116 struct nfs_context *nfs = data->nfs;
1117 struct nfsfh *nfsfh;
1118 unsigned int nfsmode = 0;
1119
1120 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1121
1122 if (status == RPC_STATUS_ERROR) {
1123 data->cb(-EFAULT, nfs, command_data, data->private_data);
1124 free_nfs_cb_data(data);
1125 return;
1126 }
1127 if (status == RPC_STATUS_CANCEL) {
1128 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1129 free_nfs_cb_data(data);
1130 return;
1131 }
1132
1133 res = command_data;
1134 if (res->status != NFS3_OK) {
1135 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));
1136 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1137 free_nfs_cb_data(data);
1138 return;
1139 }
1140
1141 if (data->continue_int & O_WRONLY) {
1142 nfsmode |= ACCESS3_MODIFY;
1143 }
1144 if (data->continue_int & O_RDWR) {
1145 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1146 }
1147 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1148 nfsmode |= ACCESS3_READ;
1149 }
1150
1151
1152 if (res->ACCESS3res_u.resok.access != nfsmode) {
1153 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
1154 nfsmode&ACCESS3_READ?'r':'-',
1155 nfsmode&ACCESS3_MODIFY?'w':'-',
1156 nfsmode&ACCESS3_EXECUTE?'x':'-',
1157 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
1158 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
1159 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
1160 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
1161 free_nfs_cb_data(data);
1162 return;
1163 }
1164
1165 nfsfh = malloc(sizeof(struct nfsfh));
1166 if (nfsfh == NULL) {
1167 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1168 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1169 free_nfs_cb_data(data);
1170 return;
1171 }
1172 memset(nfsfh, 0, sizeof(struct nfsfh));
1173
1174 if (data->continue_int & O_SYNC) {
1175 nfsfh->is_sync = 1;
1176 }
1177
1178 /* steal the filehandle */
1179 nfsfh->fh = data->fh;
1180 data->fh.data.data_val = NULL;
1181
1182 data->cb(0, nfs, nfsfh, data->private_data);
1183 free_nfs_cb_data(data);
1184 }
1185
1186 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1187 {
1188 int nfsmode = 0;
1189 ACCESS3args args;
1190
1191 if (data->continue_int & O_WRONLY) {
1192 nfsmode |= ACCESS3_MODIFY;
1193 }
1194 if (data->continue_int & O_RDWR) {
1195 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1196 }
1197 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1198 nfsmode |= ACCESS3_READ;
1199 }
1200
1201 memset(&args, 0, sizeof(ACCESS3args));
1202 args.object = data->fh;
1203 args.access = nfsmode;
1204
1205 if (rpc_nfs3_access_async(nfs->rpc, nfs_open_cb, &args, data) != 0) {
1206 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
1207 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1208 free_nfs_cb_data(data);
1209 return -1;
1210 }
1211 return 0;
1212 }
1213
1214 int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1215 {
1216 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
1217 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1218 return -1;
1219 }
1220
1221 return 0;
1222 }
1223
1224
1225
1226
1227
1228 /*
1229 * Async pread()
1230 */
1231 static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1232 {
1233 struct nfs_cb_data *data = private_data;
1234 struct nfs_context *nfs = data->nfs;
1235 READ3res *res;
1236
1237 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1238
1239 if (status == RPC_STATUS_ERROR) {
1240 data->cb(-EFAULT, nfs, command_data, data->private_data);
1241 free_nfs_cb_data(data);
1242 return;
1243 }
1244 if (status == RPC_STATUS_CANCEL) {
1245 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1246 free_nfs_cb_data(data);
1247 return;
1248 }
1249
1250 res = command_data;
1251 if (res->status != NFS3_OK) {
1252 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1253 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1254 free_nfs_cb_data(data);
1255 return;
1256 }
1257
1258 data->nfsfh->offset += res->READ3res_u.resok.count;
1259 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
1260 free_nfs_cb_data(data);
1261 }
1262
1263 static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1264 {
1265 struct nfs_mcb_data *mdata = private_data;
1266 struct nfs_cb_data *data = mdata->data;
1267 struct nfs_context *nfs = data->nfs;
1268 READ3res *res;
1269
1270 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1271
1272 data->num_calls--;
1273
1274 if (status == RPC_STATUS_ERROR) {
1275 /* flag the failure but do not invoke callback until we have received all responses */
1276 data->error = 1;
1277 }
1278 if (status == RPC_STATUS_CANCEL) {
1279 /* flag the cancellation but do not invoke callback until we have received all responses */
1280 data->cancel = 1;
1281 }
1282
1283 /* reassemble the data into the buffer */
1284 if (status == RPC_STATUS_SUCCESS) {
1285 res = command_data;
1286 if (res->status != NFS3_OK) {
1287 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1288 data->error = 1;
1289 } else {
1290 if (res->READ3res_u.resok.count > 0) {
1291 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
1292 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
1293 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
1294 }
1295 }
1296 }
1297 }
1298
1299 if (data->num_calls > 0) {
1300 /* still waiting for more replies */
1301 free(mdata);
1302 return;
1303 }
1304
1305 if (data->error != 0) {
1306 data->cb(-EFAULT, nfs, command_data, data->private_data);
1307 free_nfs_cb_data(data);
1308 free(mdata);
1309 return;
1310 }
1311 if (data->cancel != 0) {
1312 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1313 free_nfs_cb_data(data);
1314 free(mdata);
1315 return;
1316 }
1317
1318 data->nfsfh->offset = data->max_offset;
1319 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
1320
1321 free_nfs_cb_data(data);
1322 free(mdata);
1323 }
1324
1325 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
1326 {
1327 struct nfs_cb_data *data;
1328
1329 data = malloc(sizeof(struct nfs_cb_data));
1330 if (data == NULL) {
1331 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1332 return -1;
1333 }
1334 memset(data, 0, sizeof(struct nfs_cb_data));
1335 data->nfs = nfs;
1336 data->cb = cb;
1337 data->private_data = private_data;
1338 data->nfsfh = nfsfh;
1339
1340 nfsfh->offset = offset;
1341
1342 if (count <= nfs_get_readmax(nfs)) {
1343 READ3args args;
1344
1345 memset(&args, 0, sizeof(READ3args));
1346 args.file = nfsfh->fh;
1347 args.offset = offset;
1348 args.count = count;
1349
1350 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_cb, &args, data) != 0) {
1351 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1352 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1353 free_nfs_cb_data(data);
1354 return -1;
1355 }
1356 return 0;
1357 }
1358
1359 /* trying to read more than maximum server read size, we has to chop it up into smaller
1360 * reads and collect into a reassembly buffer.
1361 * we send all reads in parallel so that performance is still good.
1362 */
1363 data->max_offset = offset;
1364 data->start_offset = offset;
1365
1366 data->buffer = malloc(count);
1367 if (data->buffer == NULL) {
1368 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
1369 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1370 free_nfs_cb_data(data);
1371 return -1;
1372 }
1373
1374 while (count > 0) {
1375 uint64_t readcount = count;
1376 struct nfs_mcb_data *mdata;
1377 READ3args args;
1378
1379 if (readcount > nfs_get_readmax(nfs)) {
1380 readcount = nfs_get_readmax(nfs);
1381 }
1382
1383 mdata = malloc(sizeof(struct nfs_mcb_data));
1384 if (mdata == NULL) {
1385 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1386 return -1;
1387 }
1388 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1389 mdata->data = data;
1390 mdata->offset = offset;
1391 mdata->count = readcount;
1392
1393 memset(&args, 0, sizeof(READ3args));
1394 args.file = nfsfh->fh;
1395 args.offset = offset;
1396 args.count = readcount;
1397
1398 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_mcb, &args, mdata) != 0) {
1399 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1400 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1401 free(mdata);
1402 return -1;
1403 }
1404
1405 count -= readcount;
1406 offset += readcount;
1407 data->num_calls++;
1408 }
1409
1410 return 0;
1411 }
1412
1413 /*
1414 * Async read()
1415 */
1416 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
1417 {
1418 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
1419 }
1420
1421
1422
1423 /*
1424 * Async pwrite()
1425 */
1426 static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1427 {
1428 struct nfs_cb_data *data = private_data;
1429 struct nfs_context *nfs = data->nfs;
1430 WRITE3res *res;
1431
1432 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1433
1434 if (status == RPC_STATUS_ERROR) {
1435 data->cb(-EFAULT, nfs, command_data, data->private_data);
1436 free_nfs_cb_data(data);
1437 return;
1438 }
1439 if (status == RPC_STATUS_CANCEL) {
1440 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1441 free_nfs_cb_data(data);
1442 return;
1443 }
1444
1445 res = command_data;
1446 if (res->status != NFS3_OK) {
1447 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1448 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1449 free_nfs_cb_data(data);
1450 return;
1451 }
1452
1453 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1454 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1455 free_nfs_cb_data(data);
1456 }
1457
1458 static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1459 {
1460 struct nfs_mcb_data *mdata = private_data;
1461 struct nfs_cb_data *data = mdata->data;
1462 struct nfs_context *nfs = data->nfs;
1463 WRITE3res *res;
1464
1465 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1466
1467 data->num_calls--;
1468
1469 if (status == RPC_STATUS_ERROR) {
1470 /* flag the failure but do not invoke callback until we have received all responses */
1471 data->error = 1;
1472 }
1473 if (status == RPC_STATUS_CANCEL) {
1474 /* flag the cancellation but do not invoke callback until we have received all responses */
1475 data->cancel = 1;
1476 }
1477
1478 if (status == RPC_STATUS_SUCCESS) {
1479 res = command_data;
1480 if (res->status != NFS3_OK) {
1481 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1482 data->error = 1;
1483 } else {
1484 if (res->WRITE3res_u.resok.count > 0) {
1485 if ((unsigned)data->max_offset < mdata->offset + res->WRITE3res_u.resok.count) {
1486 data->max_offset = mdata->offset + res->WRITE3res_u.resok.count;
1487 }
1488 }
1489 }
1490 }
1491
1492 if (data->num_calls > 0) {
1493 /* still waiting for more replies */
1494 free(mdata);
1495 return;
1496 }
1497
1498 if (data->error != 0) {
1499 data->cb(-EFAULT, nfs, command_data, data->private_data);
1500 free_nfs_cb_data(data);
1501 free(mdata);
1502 return;
1503 }
1504 if (data->cancel != 0) {
1505 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1506 free_nfs_cb_data(data);
1507 free(mdata);
1508 return;
1509 }
1510
1511 data->nfsfh->offset = data->max_offset;
1512 data->cb(data->max_offset - data->start_offset, nfs, NULL, data->private_data);
1513
1514 free_nfs_cb_data(data);
1515 free(mdata);
1516 }
1517
1518
1519 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)
1520 {
1521 struct nfs_cb_data *data;
1522
1523 data = malloc(sizeof(struct nfs_cb_data));
1524 if (data == NULL) {
1525 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1526 return -1;
1527 }
1528 memset(data, 0, sizeof(struct nfs_cb_data));
1529 data->nfs = nfs;
1530 data->cb = cb;
1531 data->private_data = private_data;
1532 data->nfsfh = nfsfh;
1533
1534 nfsfh->offset = offset;
1535
1536 if (count <= nfs_get_writemax(nfs)) {
1537 WRITE3args args;
1538
1539 memset(&args, 0, sizeof(WRITE3args));
1540 args.file = nfsfh->fh;
1541 args.offset = offset;
1542 args.count = count;
1543 args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
1544 args.data.data_len = count;
1545 args.data.data_val = buf;
1546
1547 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_cb, &args, data) != 0) {
1548 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1549 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1550 free_nfs_cb_data(data);
1551 return -1;
1552 }
1553 return 0;
1554 }
1555
1556 /* trying to write more than maximum server write size, we has to chop it up into smaller
1557 * chunks.
1558 * we send all writes in parallel so that performance is still good.
1559 */
1560 data->max_offset = offset;
1561 data->start_offset = offset;
1562
1563 while (count > 0) {
1564 uint64_t writecount = count;
1565 struct nfs_mcb_data *mdata;
1566 WRITE3args args;
1567
1568 if (writecount > nfs_get_writemax(nfs)) {
1569 writecount = nfs_get_writemax(nfs);
1570 }
1571
1572 mdata = malloc(sizeof(struct nfs_mcb_data));
1573 if (mdata == NULL) {
1574 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1575 return -1;
1576 }
1577 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1578 mdata->data = data;
1579 mdata->offset = offset;
1580 mdata->count = writecount;
1581
1582 memset(&args, 0, sizeof(WRITE3args));
1583 args.file = nfsfh->fh;
1584 args.offset = offset;
1585 args.count = writecount;
1586 args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
1587 args.data.data_len = writecount;
1588 args.data.data_val = &buf[offset - data->start_offset];
1589
1590 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_mcb, &args, mdata) != 0) {
1591 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1592 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1593 free(mdata);
1594 return -1;
1595 }
1596
1597 count -= writecount;
1598 offset += writecount;
1599 data->num_calls++;
1600 }
1601
1602 return 0;
1603 }
1604
1605 /*
1606 * Async write()
1607 */
1608 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
1609 {
1610 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1611 }
1612
1613
1614
1615
1616 /*
1617 * close
1618 */
1619
1620 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1621 {
1622 if (nfsfh->fh.data.data_val != NULL){
1623 free(nfsfh->fh.data.data_val);
1624 nfsfh->fh.data.data_val = NULL;
1625 }
1626 free(nfsfh);
1627
1628 cb(0, nfs, NULL, private_data);
1629 return 0;
1630 };
1631
1632
1633
1634
1635
1636 /*
1637 * Async fstat()
1638 */
1639 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1640 {
1641 struct nfs_cb_data *data;
1642 struct GETATTR3args args;
1643
1644 data = malloc(sizeof(struct nfs_cb_data));
1645 if (data == NULL) {
1646 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1647 return -1;
1648 }
1649 memset(data, 0, sizeof(struct nfs_cb_data));
1650 data->nfs = nfs;
1651 data->cb = cb;
1652 data->private_data = private_data;
1653
1654 memset(&args, 0, sizeof(GETATTR3args));
1655 args.object = nfsfh->fh;
1656
1657 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
1658 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1659 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1660 free_nfs_cb_data(data);
1661 return -1;
1662 }
1663 return 0;
1664 }
1665
1666
1667
1668 /*
1669 * Async fsync()
1670 */
1671 static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1672 {
1673 struct nfs_cb_data *data = private_data;
1674 struct nfs_context *nfs = data->nfs;
1675 COMMIT3res *res;
1676
1677 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1678
1679 if (status == RPC_STATUS_ERROR) {
1680 data->cb(-EFAULT, nfs, command_data, data->private_data);
1681 free_nfs_cb_data(data);
1682 return;
1683 }
1684 if (status == RPC_STATUS_CANCEL) {
1685 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1686 free_nfs_cb_data(data);
1687 return;
1688 }
1689
1690 res = command_data;
1691 if (res->status != NFS3_OK) {
1692 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1693 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1694 free_nfs_cb_data(data);
1695 return;
1696 }
1697
1698 data->cb(0, nfs, NULL, data->private_data);
1699 free_nfs_cb_data(data);
1700 }
1701
1702 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1703 {
1704 struct nfs_cb_data *data;
1705 struct COMMIT3args args;
1706
1707 data = malloc(sizeof(struct nfs_cb_data));
1708 if (data == NULL) {
1709 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1710 return -1;
1711 }
1712 memset(data, 0, sizeof(struct nfs_cb_data));
1713 data->nfs = nfs;
1714 data->cb = cb;
1715 data->private_data = private_data;
1716
1717 args.file = nfsfh->fh;
1718 args.offset = 0;
1719 args.count = 0;
1720 if (rpc_nfs3_commit_async(nfs->rpc, nfs_fsync_cb, &args, data) != 0) {
1721 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1722 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1723 free_nfs_cb_data(data);
1724 return -1;
1725 }
1726 return 0;
1727 }
1728
1729
1730
1731
1732 /*
1733 * Async ftruncate()
1734 */
1735 static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1736 {
1737 struct nfs_cb_data *data = private_data;
1738 struct nfs_context *nfs = data->nfs;
1739 SETATTR3res *res;
1740
1741 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1742
1743 if (status == RPC_STATUS_ERROR) {
1744 data->cb(-EFAULT, nfs, command_data, data->private_data);
1745 free_nfs_cb_data(data);
1746 return;
1747 }
1748 if (status == RPC_STATUS_CANCEL) {
1749 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1750 free_nfs_cb_data(data);
1751 return;
1752 }
1753
1754 res = command_data;
1755 if (res->status != NFS3_OK) {
1756 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1757 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1758 free_nfs_cb_data(data);
1759 return;
1760 }
1761
1762 data->cb(0, nfs, NULL, data->private_data);
1763 free_nfs_cb_data(data);
1764 }
1765
1766 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
1767 {
1768 struct nfs_cb_data *data;
1769 SETATTR3args args;
1770
1771 data = malloc(sizeof(struct nfs_cb_data));
1772 if (data == NULL) {
1773 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1774 return -1;
1775 }
1776 memset(data, 0, sizeof(struct nfs_cb_data));
1777 data->nfs = nfs;
1778 data->cb = cb;
1779 data->private_data = private_data;
1780
1781 memset(&args, 0, sizeof(SETATTR3args));
1782 args.object = nfsfh->fh;
1783 args.new_attributes.size.set_it = 1;
1784 args.new_attributes.size.set_size3_u.size = length;
1785
1786 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1787 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1788 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1789 free_nfs_cb_data(data);
1790 return -1;
1791 }
1792 return 0;
1793 }
1794
1795
1796 /*
1797 * Async truncate()
1798 */
1799 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1800 {
1801 uint64_t offset = data->continue_int;
1802 struct nfsfh nfsfh;
1803
1804 nfsfh.fh = data->fh;
1805
1806 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1807 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1808 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1809 free_nfs_cb_data(data);
1810 return -1;
1811 }
1812 free_nfs_cb_data(data);
1813 return 0;
1814 }
1815
1816 int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
1817 {
1818 uint64_t offset;
1819
1820 offset = length;
1821
1822 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1823 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1824 return -1;
1825 }
1826
1827 return 0;
1828 }
1829
1830
1831
1832
1833 /*
1834 * Async mkdir()
1835 */
1836 static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1837 {
1838 MKDIR3res *res;
1839 struct nfs_cb_data *data = private_data;
1840 struct nfs_context *nfs = data->nfs;
1841 char *str = data->continue_data;
1842
1843 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1844
1845 str = &str[strlen(str) + 1];
1846
1847 if (status == RPC_STATUS_ERROR) {
1848 data->cb(-EFAULT, nfs, command_data, data->private_data);
1849 free_nfs_cb_data(data);
1850 return;
1851 }
1852 if (status == RPC_STATUS_CANCEL) {
1853 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1854 free_nfs_cb_data(data);
1855 return;
1856 }
1857
1858 res = command_data;
1859 if (res->status != NFS3_OK) {
1860 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));
1861 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1862 free_nfs_cb_data(data);
1863 return;
1864 }
1865
1866 data->cb(0, nfs, NULL, data->private_data);
1867 free_nfs_cb_data(data);
1868 }
1869
1870 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1871 {
1872 char *str = data->continue_data;
1873 MKDIR3args args;
1874
1875 str = &str[strlen(str) + 1];
1876
1877 memset(&args, 0, sizeof(MKDIR3args));
1878 args.where.dir = data->fh;
1879 args.where.name = str;
1880 args.attributes.mode.set_it = 1;
1881 args.attributes.mode.set_mode3_u.mode = 0755;
1882
1883 if (rpc_nfs3_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
1884 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1885 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1886 free_nfs_cb_data(data);
1887 return -1;
1888 }
1889 return 0;
1890 }
1891
1892 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1893 {
1894 char *new_path;
1895 char *ptr;
1896
1897 new_path = strdup(path);
1898 if (new_path == NULL) {
1899 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1900 return -1;
1901 }
1902
1903 ptr = strrchr(new_path, '/');
1904 if (ptr == NULL) {
1905 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1906 return -1;
1907 }
1908 *ptr = 0;
1909
1910 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1911 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1912 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1913 return -1;
1914 }
1915
1916 return 0;
1917 }
1918
1919
1920
1921
1922
1923 /*
1924 * Async rmdir()
1925 */
1926 static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1927 {
1928 RMDIR3res *res;
1929 struct nfs_cb_data *data = private_data;
1930 struct nfs_context *nfs = data->nfs;
1931 char *str = data->continue_data;
1932
1933 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1934
1935 str = &str[strlen(str) + 1];
1936
1937 if (status == RPC_STATUS_ERROR) {
1938 data->cb(-EFAULT, nfs, command_data, data->private_data);
1939 free_nfs_cb_data(data);
1940 return;
1941 }
1942 if (status == RPC_STATUS_CANCEL) {
1943 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1944 free_nfs_cb_data(data);
1945 return;
1946 }
1947
1948 res = command_data;
1949 if (res->status != NFS3_OK) {
1950 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));
1951 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1952 free_nfs_cb_data(data);
1953 return;
1954 }
1955
1956 data->cb(0, nfs, NULL, data->private_data);
1957 free_nfs_cb_data(data);
1958 }
1959
1960 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1961 {
1962 char *str = data->continue_data;
1963 RMDIR3args args;
1964
1965 str = &str[strlen(str) + 1];
1966
1967 args.object.dir = data->fh;
1968 args.object.name = str;
1969 if (rpc_nfs3_rmdir_async(nfs->rpc, nfs_rmdir_cb, &args, data) != 0) {
1970 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1971 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1972 free_nfs_cb_data(data);
1973 return -1;
1974 }
1975 return 0;
1976 }
1977
1978 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1979 {
1980 char *new_path;
1981 char *ptr;
1982
1983 new_path = strdup(path);
1984 if (new_path == NULL) {
1985 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
1986 return -1;
1987 }
1988
1989 ptr = strrchr(new_path, '/');
1990 if (ptr == NULL) {
1991 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1992 return -1;
1993 }
1994 *ptr = 0;
1995
1996 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1997 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
1998 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1999 return -1;
2000 }
2001
2002 return 0;
2003 }
2004
2005
2006
2007
2008 /*
2009 * Async creat()
2010 */
2011 static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2012 {
2013 LOOKUP3res *res;
2014 struct nfs_cb_data *data = private_data;
2015 struct nfs_context *nfs = data->nfs;
2016 struct nfsfh *nfsfh;
2017 char *str = data->continue_data;
2018
2019 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2020
2021 if (status == RPC_STATUS_ERROR) {
2022 data->cb(-EFAULT, nfs, command_data, data->private_data);
2023 free_nfs_cb_data(data);
2024 return;
2025 }
2026 if (status == RPC_STATUS_CANCEL) {
2027 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2028 free_nfs_cb_data(data);
2029 return;
2030 }
2031
2032 str = &str[strlen(str) + 1];
2033 res = command_data;
2034 if (res->status != NFS3_OK) {
2035 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));
2036 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2037
2038 return;
2039 }
2040
2041 nfsfh = malloc(sizeof(struct nfsfh));
2042 if (nfsfh == NULL) {
2043 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
2044 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2045 free_nfs_cb_data(data);
2046 return;
2047 }
2048 memset(nfsfh, 0, sizeof(struct nfsfh));
2049
2050 /* copy the filehandle */
2051 nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
2052 nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
2053 memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
2054
2055 data->cb(0, nfs, nfsfh, data->private_data);
2056 free_nfs_cb_data(data);
2057 }
2058
2059
2060
2061 static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2062 {
2063 CREATE3res *res;
2064 struct nfs_cb_data *data = private_data;
2065 struct nfs_context *nfs = data->nfs;
2066 char *str = data->continue_data;
2067 LOOKUP3args args;
2068
2069 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2070
2071 if (status == RPC_STATUS_ERROR) {
2072 data->cb(-EFAULT, nfs, command_data, data->private_data);
2073 free_nfs_cb_data(data);
2074 return;
2075 }
2076 if (status == RPC_STATUS_CANCEL) {
2077 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2078 free_nfs_cb_data(data);
2079 return;
2080 }
2081
2082 str = &str[strlen(str) + 1];
2083 res = command_data;
2084 if (res->status != NFS3_OK) {
2085 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));
2086 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2087 free_nfs_cb_data(data);
2088 return;
2089 }
2090
2091 memset(&args, 0, sizeof(LOOKUP3args));
2092 args.what.dir = data->fh;
2093 args.what.name = str;
2094
2095 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_create_2_cb, &args, data) != 0) {
2096 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
2097 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2098 free_nfs_cb_data(data);
2099 return;
2100 }
2101 return;
2102 }
2103
2104 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2105 {
2106 char *str = data->continue_data;
2107 CREATE3args args;
2108
2109 str = &str[strlen(str) + 1];
2110
2111 memset(&args, 0, sizeof(CREATE3args));
2112 args.where.dir = data->fh;
2113 args.where.name = str;
2114 args.how.mode = UNCHECKED;
2115 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
2116 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
2117
2118 if (rpc_nfs3_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
2119 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
2120 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2121 free_nfs_cb_data(data);
2122 return -1;
2123 }
2124 return 0;
2125 }
2126
2127 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2128 {
2129 char *new_path;
2130 char *ptr;
2131
2132 new_path = strdup(path);
2133 if (new_path == NULL) {
2134 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2135 return -1;
2136 }
2137
2138 ptr = strrchr(new_path, '/');
2139 if (ptr == NULL) {
2140 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2141 return -1;
2142 }
2143 *ptr = 0;
2144
2145 /* new_path now points to the parent directory, and beyond the nul terminator is the new directory to create */
2146 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
2147 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2148 return -1;
2149 }
2150
2151 return 0;
2152 }
2153
2154
2155
2156
2157 /*
2158 * Async unlink()
2159 */
2160 static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2161 {
2162 REMOVE3res *res;
2163 struct nfs_cb_data *data = private_data;
2164 struct nfs_context *nfs = data->nfs;
2165 char *str = data->continue_data;
2166
2167 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2168
2169 str = &str[strlen(str) + 1];
2170
2171 if (status == RPC_STATUS_ERROR) {
2172 data->cb(-EFAULT, nfs, command_data, data->private_data);
2173 free_nfs_cb_data(data);
2174 return;
2175 }
2176 if (status == RPC_STATUS_CANCEL) {
2177 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2178 free_nfs_cb_data(data);
2179 return;
2180 }
2181
2182 res = command_data;
2183 if (res->status != NFS3_OK) {
2184 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));
2185 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2186 free_nfs_cb_data(data);
2187 return;
2188 }
2189
2190 data->cb(0, nfs, NULL, data->private_data);
2191 free_nfs_cb_data(data);
2192 }
2193
2194 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2195 {
2196 char *str = data->continue_data;
2197 struct REMOVE3args args;
2198
2199 str = &str[strlen(str) + 1];
2200
2201 args.object.dir = data->fh;
2202 args.object.name = str;
2203 if (rpc_nfs3_remove_async(nfs->rpc, nfs_unlink_cb, &args, data) != 0) {
2204 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
2205 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2206 free_nfs_cb_data(data);
2207 return -1;
2208 }
2209 return 0;
2210 }
2211
2212 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2213 {
2214 char *new_path;
2215 char *ptr;
2216
2217 new_path = strdup(path);
2218 if (new_path == NULL) {
2219 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2220 return -1;
2221 }
2222
2223 ptr = strrchr(new_path, '/');
2224 if (ptr == NULL) {
2225 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2226 return -1;
2227 }
2228 *ptr = 0;
2229
2230 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2231 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
2232 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2233 return -1;
2234 }
2235
2236 return 0;
2237 }
2238
2239
2240 /*
2241 * Async mknod()
2242 */
2243 struct mknod_cb_data {
2244 char *path;
2245 int mode;
2246 int major;
2247 int minor;
2248 };
2249
2250 static void free_mknod_cb_data(void *ptr)
2251 {
2252 struct mknod_cb_data *data = ptr;
2253
2254 free(data->path);
2255 free(data);
2256 }
2257
2258 static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2259 {
2260 MKNOD3res *res;
2261 struct nfs_cb_data *data = private_data;
2262 struct nfs_context *nfs = data->nfs;
2263 char *str = data->continue_data;
2264
2265 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2266
2267 str = &str[strlen(str) + 1];
2268
2269 if (status == RPC_STATUS_ERROR) {
2270 data->cb(-EFAULT, nfs, command_data, data->private_data);
2271 free_nfs_cb_data(data);
2272 return;
2273 }
2274 if (status == RPC_STATUS_CANCEL) {
2275 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2276 free_nfs_cb_data(data);
2277 return;
2278 }
2279
2280 res = command_data;
2281 if (res->status != NFS3_OK) {
2282 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));
2283 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2284 free_nfs_cb_data(data);
2285 return;
2286 }
2287
2288 data->cb(0, nfs, NULL, data->private_data);
2289 free_nfs_cb_data(data);
2290 }
2291
2292 static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2293 {
2294 struct mknod_cb_data *cb_data = data->continue_data;
2295 char *str = cb_data->path;
2296 MKNOD3args args;
2297
2298 str = &str[strlen(str) + 1];
2299
2300 args.where.dir = data->fh;
2301 args.where.name = str;
2302 switch (cb_data->mode & S_IFMT) {
2303 case S_IFCHR:
2304 args.what.type = NF3CHR;
2305 args.what.mknoddata3_u.chr_device.dev_attributes.mode.set_it = 1;
2306 args.what.mknoddata3_u.chr_device.dev_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2307 args.what.mknoddata3_u.chr_device.spec.specdata1 = cb_data->major;
2308 args.what.mknoddata3_u.chr_device.spec.specdata2 = cb_data->minor;
2309 break;
2310 case S_IFBLK:
2311 args.what.type = NF3BLK;
2312 args.what.mknoddata3_u.blk_device.dev_attributes.mode.set_it = 1;
2313 args.what.mknoddata3_u.blk_device.dev_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2314 args.what.mknoddata3_u.blk_device.spec.specdata1 = cb_data->major;
2315 args.what.mknoddata3_u.blk_device.spec.specdata2 = cb_data->minor;
2316 case S_IFSOCK:
2317 args.what.type = NF3SOCK;
2318 args.what.mknoddata3_u.sock_attributes.mode.set_it = 1;
2319 args.what.mknoddata3_u.sock_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2320 break;
2321 case S_IFIFO:
2322 args.what.type = NF3FIFO;
2323 args.what.mknoddata3_u.pipe_attributes.mode.set_it = 1;
2324 args.what.mknoddata3_u.pipe_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
2325 break;
2326 default:
2327 rpc_set_error(nfs->rpc, "Invalid file type for NFS3/MKNOD call");
2328 data->cb(-EINVAL, nfs, rpc_get_error(nfs->rpc), data->private_data);
2329 free_nfs_cb_data(data);
2330 return -1;
2331 }
2332
2333 if (rpc_nfs3_mknod_async(nfs->rpc, nfs_mknod_cb, &args, data) != 0) {
2334 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2335 free_nfs_cb_data(data);
2336 return -1;
2337 }
2338 return 0;
2339 }
2340
2341 int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
2342 {
2343 char *ptr;
2344 struct mknod_cb_data *cb_data;
2345
2346 cb_data = malloc(sizeof(struct mknod_cb_data));
2347 if (cb_data == NULL) {
2348 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
2349 return -1;
2350 }
2351
2352 cb_data->path = strdup(path);
2353 if (cb_data->path == NULL) {
2354 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2355 free(cb_data);
2356 return -1;
2357 }
2358
2359 ptr = strrchr(cb_data->path, '/');
2360 if (ptr == NULL) {
2361 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2362 return -1;
2363 }
2364 *ptr = 0;
2365
2366 cb_data->mode = mode;
2367 cb_data->major = major(dev);
2368 cb_data->minor = minor(dev);
2369
2370 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2371 if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
2372 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2373 free_mknod_cb_data(cb_data);
2374 return -1;
2375 }
2376
2377 return 0;
2378 }
2379
2380 /*
2381 * Async opendir()
2382 */
2383
2384 /* ReadDirPlus Emulation Callback data */
2385 struct rdpe_cb_data {
2386 int getattrcount;
2387 int status;
2388 struct nfs_cb_data *data;
2389 };
2390
2391 /* ReadDirPlus Emulation LOOKUP Callback data */
2392 struct rdpe_lookup_cb_data {
2393 struct rdpe_cb_data *rdpe_cb_data;
2394 struct nfsdirent *nfsdirent;
2395 };
2396
2397 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
2398 static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2399 {
2400 LOOKUP3res *res = command_data;
2401 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
2402 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
2403 struct nfs_cb_data *data = rdpe_cb_data->data;
2404 struct nfsdir *nfsdir = data->continue_data;
2405 struct nfs_context *nfs = data->nfs;
2406 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
2407
2408 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2409
2410 free(rdpe_lookup_cb_data);
2411
2412 rdpe_cb_data->getattrcount--;
2413
2414 if (status == RPC_STATUS_ERROR) {
2415 rdpe_cb_data->status = RPC_STATUS_ERROR;
2416 }
2417 if (status == RPC_STATUS_CANCEL) {
2418 rdpe_cb_data->status = RPC_STATUS_CANCEL;
2419 }
2420 if (status == RPC_STATUS_SUCCESS && res->status != NFS3_OK) {
2421 rdpe_cb_data->status = RPC_STATUS_ERROR;
2422 }
2423 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
2424 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
2425 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
2426
2427 nfsdirent->type = attributes->type;
2428 nfsdirent->mode = attributes->mode;
2429 nfsdirent->size = attributes->size;
2430
2431 nfsdirent->atime.tv_sec = attributes->atime.seconds;
2432 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
2433 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
2434 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
2435 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
2436 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
2437 }
2438 }
2439
2440 if (rdpe_cb_data->getattrcount == 0) {
2441 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
2442 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2443 nfs_free_nfsdir(nfsdir);
2444 } else {
2445 data->cb(0, nfs, nfsdir, data->private_data);
2446 }
2447 free(rdpe_cb_data);
2448
2449 data->continue_data = NULL;
2450 free_nfs_cb_data(data);
2451 }
2452 }
2453
2454 static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2455 {
2456 READDIR3res *res = command_data;
2457 struct nfs_cb_data *data = private_data;
2458 struct nfs_context *nfs = data->nfs;
2459 struct nfsdir *nfsdir = data->continue_data;
2460 struct nfsdirent *nfsdirent;
2461 struct entry3 *entry;
2462 uint64_t cookie;
2463 struct rdpe_cb_data *rdpe_cb_data;
2464
2465 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2466
2467 if (status == RPC_STATUS_ERROR) {
2468 data->cb(-EFAULT, nfs, command_data, data->private_data);
2469 nfs_free_nfsdir(nfsdir);
2470 data->continue_data = NULL;
2471 free_nfs_cb_data(data);
2472 return;
2473 }
2474
2475 if (status == RPC_STATUS_CANCEL) {
2476 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2477 nfs_free_nfsdir(nfsdir);
2478 data->continue_data = NULL;
2479 free_nfs_cb_data(data);
2480 return;
2481 }
2482
2483 if (res->status != NFS3_OK) {
2484 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));
2485 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2486 nfs_free_nfsdir(nfsdir);
2487 data->continue_data = NULL;
2488 free_nfs_cb_data(data);
2489 return;
2490 }
2491
2492 entry =res->READDIR3res_u.resok.reply.entries;
2493 while (entry != NULL) {
2494 nfsdirent = malloc(sizeof(struct nfsdirent));
2495 if (nfsdirent == NULL) {
2496 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2497 nfs_free_nfsdir(nfsdir);
2498 data->continue_data = NULL;
2499 free_nfs_cb_data(data);
2500 return;
2501 }
2502 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2503 nfsdirent->name = strdup(entry->name);
2504 if (nfsdirent->name == NULL) {
2505 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2506 nfs_free_nfsdir(nfsdir);
2507 data->continue_data = NULL;
2508 free_nfs_cb_data(data);
2509 return;
2510 }
2511 nfsdirent->inode = entry->fileid;
2512
2513 nfsdirent->next = nfsdir->entries;
2514 nfsdir->entries = nfsdirent;
2515
2516 cookie = entry->cookie;
2517 entry = entry->nextentry;
2518 }
2519
2520 if (res->READDIR3res_u.resok.reply.eof == 0) {
2521 READDIR3args args;
2522
2523 args.dir = data->fh;
2524 args.cookie = cookie;
2525 memcpy(&args.cookieverf, res->READDIR3res_u.resok.cookieverf, sizeof(cookieverf3));
2526 args.count = 8192;
2527
2528 if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
2529 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2530 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2531 nfs_free_nfsdir(nfsdir);
2532 data->continue_data = NULL;
2533 free_nfs_cb_data(data);
2534 return;
2535 }
2536 return;
2537 }
2538
2539 /* steal the dirhandle */
2540 nfsdir->current = nfsdir->entries;
2541
2542 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
2543 rdpe_cb_data->getattrcount = 0;
2544 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
2545 rdpe_cb_data->data = data;
2546 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
2547 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
2548 LOOKUP3args args;
2549
2550 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
2551 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
2552 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
2553
2554 memset(&args, 0, sizeof(LOOKUP3args));
2555 args.what.dir = data->fh;
2556 args.what.name = nfsdirent->name;
2557
2558 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_opendir3_cb, &args, rdpe_lookup_cb_data) != 0) {
2559 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
2560
2561 /* if we have already commands in flight, we cant just stop, we have to wait for the
2562 * commands in flight to complete
2563 */
2564 if (rdpe_cb_data->getattrcount > 0) {
2565 rdpe_cb_data->status = RPC_STATUS_ERROR;
2566 free(rdpe_lookup_cb_data);
2567 return;
2568 }
2569
2570 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2571 nfs_free_nfsdir(nfsdir);
2572 data->continue_data = NULL;
2573 free_nfs_cb_data(data);
2574 free(rdpe_lookup_cb_data);
2575 free(rdpe_cb_data);
2576 return;
2577 }
2578 rdpe_cb_data->getattrcount++;
2579 }
2580 }
2581
2582
2583 static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2584 {
2585 READDIRPLUS3res *res = command_data;
2586 struct nfs_cb_data *data = private_data;
2587 struct nfs_context *nfs = data->nfs;
2588 struct nfsdir *nfsdir = data->continue_data;
2589 struct entryplus3 *entry;
2590 uint64_t cookie;
2591
2592 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2593
2594 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
2595 READDIR3args args;
2596
2597 args.dir = data->fh;
2598 args.cookie = cookie;
2599 memset(&args.cookieverf, 0, sizeof(cookieverf3));
2600 args.count = 8192;
2601
2602 if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
2603 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2604 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2605 nfs_free_nfsdir(nfsdir);
2606 data->continue_data = NULL;
2607 free_nfs_cb_data(data);
2608 return;
2609 }
2610 return;
2611 }
2612
2613 if (status == RPC_STATUS_CANCEL) {
2614 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2615 nfs_free_nfsdir(nfsdir);
2616 data->continue_data = NULL;
2617 free_nfs_cb_data(data);
2618 return;
2619 }
2620
2621 if (res->status != NFS3_OK) {
2622 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));
2623 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2624 nfs_free_nfsdir(nfsdir);
2625 data->continue_data = NULL;
2626 free_nfs_cb_data(data);
2627 return;
2628 }
2629
2630 entry =res->READDIRPLUS3res_u.resok.reply.entries;
2631 while (entry != NULL) {
2632 struct nfsdirent *nfsdirent;
2633
2634 nfsdirent = malloc(sizeof(struct nfsdirent));
2635 if (nfsdirent == NULL) {
2636 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2637 nfs_free_nfsdir(nfsdir);
2638 data->continue_data = NULL;
2639 free_nfs_cb_data(data);
2640 return;
2641 }
2642 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2643 nfsdirent->name = strdup(entry->name);
2644 if (nfsdirent->name == NULL) {
2645 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2646 nfs_free_nfsdir(nfsdir);
2647 data->continue_data = NULL;
2648 free_nfs_cb_data(data);
2649 return;
2650 }
2651 nfsdirent->inode = entry->fileid;
2652 if (entry->name_attributes.attributes_follow) {
2653 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
2654 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
2655 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
2656
2657 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
2658 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
2659 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
2660 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
2661 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
2662 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
2663 }
2664
2665 nfsdirent->next = nfsdir->entries;
2666 nfsdir->entries = nfsdirent;
2667
2668 cookie = entry->cookie;
2669 entry = entry->nextentry;
2670 }
2671
2672 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
2673 READDIRPLUS3args args;
2674
2675 args.dir = data->fh;
2676 args.cookie = cookie;
2677 memcpy(&args.cookieverf, res->READDIRPLUS3res_u.resok.cookieverf, sizeof(cookieverf3));
2678 args.dircount = 8192;
2679 args.maxcount = 8192;
2680
2681 if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
2682 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2683 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2684 nfs_free_nfsdir(nfsdir);
2685 data->continue_data = NULL;
2686 free_nfs_cb_data(data);
2687 return;
2688 }
2689 return;
2690 }
2691
2692 /* steal the dirhandle */
2693 data->continue_data = NULL;
2694 nfsdir->current = nfsdir->entries;
2695
2696 data->cb(0, nfs, nfsdir, data->private_data);
2697 free_nfs_cb_data(data);
2698 }
2699
2700 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2701 {
2702 READDIRPLUS3args args;
2703
2704 args.dir = data->fh;
2705 args.cookie = 0;
2706 memset(&args.cookieverf, 0, sizeof(cookieverf3));
2707 args.dircount = 8192;
2708 args.maxcount = 8192;
2709 if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
2710 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
2711 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2712 free_nfs_cb_data(data);
2713 return -1;
2714 }
2715 return 0;
2716 }
2717
2718 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2719 {
2720 struct nfsdir *nfsdir;
2721
2722 nfsdir = malloc(sizeof(struct nfsdir));
2723 if (nfsdir == NULL) {
2724 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
2725 return -1;
2726 }
2727 memset(nfsdir, 0, sizeof(struct nfsdir));
2728
2729 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
2730 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2731 return -1;
2732 }
2733
2734 return 0;
2735 }
2736
2737
2738 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2739 {
2740 struct nfsdirent *nfsdirent = nfsdir->current;
2741
2742 if (nfsdir->current != NULL) {
2743 nfsdir->current = nfsdir->current->next;
2744 }
2745 return nfsdirent;
2746 }
2747
2748
2749 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2750 {
2751 nfs_free_nfsdir(nfsdir);
2752 }
2753
2754
2755
2756
2757
2758
2759
2760 /*
2761 * Async lseek()
2762 */
2763 struct lseek_cb_data {
2764 struct nfs_context *nfs;
2765 struct nfsfh *nfsfh;
2766 uint64_t offset;
2767 nfs_cb cb;
2768 void *private_data;
2769 };
2770
2771 static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2772 {
2773 GETATTR3res *res;
2774 struct lseek_cb_data *data = private_data;
2775 struct nfs_context *nfs = data->nfs;
2776
2777 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2778
2779 if (status == RPC_STATUS_ERROR) {
2780 data->cb(-EFAULT, nfs, command_data, data->private_data);
2781 free(data);
2782 return;
2783 }
2784 if (status == RPC_STATUS_CANCEL) {
2785 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2786 free(data);
2787 return;
2788 }
2789
2790 res = command_data;
2791 if (res->status != NFS3_OK) {
2792 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2793 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2794 free(data);
2795 return;
2796 }
2797
2798 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
2799 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
2800 free(data);
2801 }
2802
2803 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
2804 {
2805 struct lseek_cb_data *data;
2806 struct GETATTR3args args;
2807
2808 if (whence == SEEK_SET) {
2809 nfsfh->offset = offset;
2810 cb(0, nfs, &nfsfh->offset, private_data);
2811 return 0;
2812 }
2813 if (whence == SEEK_CUR) {
2814 nfsfh->offset += offset;
2815 cb(0, nfs, &nfsfh->offset, private_data);
2816 return 0;
2817 }
2818
2819 data = malloc(sizeof(struct lseek_cb_data));
2820 if (data == NULL) {
2821 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
2822 return -1;
2823 }
2824
2825 data->nfs = nfs;
2826 data->nfsfh = nfsfh;
2827 data->offset = offset;
2828 data->cb = cb;
2829 data->private_data = private_data;
2830
2831 memset(&args, 0, sizeof(GETATTR3args));
2832 args.object = nfsfh->fh;
2833
2834 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_lseek_1_cb, &args, data) != 0) {
2835 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
2836 free(data);
2837 return -1;
2838 }
2839 return 0;
2840 }
2841
2842
2843
2844
2845 /*
2846 * Async statvfs()
2847 */
2848 static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2849 {
2850 FSSTAT3res *res;
2851 struct nfs_cb_data *data = private_data;
2852 struct nfs_context *nfs = data->nfs;
2853 struct statvfs svfs;
2854
2855 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2856
2857 if (status == RPC_STATUS_ERROR) {
2858 data->cb(-EFAULT, nfs, command_data, data->private_data);
2859 free_nfs_cb_data(data);
2860 return;
2861 }
2862 if (status == RPC_STATUS_CANCEL) {
2863 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2864 free_nfs_cb_data(data);
2865 return;
2866 }
2867
2868 res = command_data;
2869 if (res->status != NFS3_OK) {
2870 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));
2871 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2872 free_nfs_cb_data(data);
2873 return;
2874 }
2875
2876 svfs.f_bsize = 4096;
2877 svfs.f_frsize = 4096;
2878 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
2879 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
2880 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
2881 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
2882 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
2883 #if !defined(ANDROID)
2884 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
2885 svfs.f_fsid = 0;
2886 svfs.f_flag = 0;
2887 svfs.f_namemax = 256;
2888 #endif
2889
2890 data->cb(0, nfs, &svfs, data->private_data);
2891 free_nfs_cb_data(data);
2892 }
2893
2894 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2895 {
2896 FSSTAT3args args;
2897
2898 args.fsroot = data->fh;
2899 if (rpc_nfs3_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &args, data) != 0) {
2900 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
2901 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2902 free_nfs_cb_data(data);
2903 return -1;
2904 }
2905 return 0;
2906 }
2907
2908 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2909 {
2910 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
2911 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2912 return -1;
2913 }
2914
2915 return 0;
2916 }
2917
2918
2919
2920
2921 /*
2922 * Async readlink()
2923 */
2924 static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2925 {
2926 READLINK3res *res;
2927 struct nfs_cb_data *data = private_data;
2928 struct nfs_context *nfs = data->nfs;
2929
2930 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2931
2932 if (status == RPC_STATUS_ERROR) {
2933 data->cb(-EFAULT, nfs, command_data, data->private_data);
2934 free_nfs_cb_data(data);
2935 return;
2936 }
2937 if (status == RPC_STATUS_CANCEL) {
2938 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2939 free_nfs_cb_data(data);
2940 return;
2941 }
2942
2943 res = command_data;
2944 if (res->status != NFS3_OK) {
2945 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));
2946 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2947 free_nfs_cb_data(data);
2948 return;
2949 }
2950
2951
2952 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
2953 free_nfs_cb_data(data);
2954 }
2955
2956 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2957 {
2958 READLINK3args args;
2959
2960 args.symlink = data->fh;
2961
2962 if (rpc_nfs3_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
2963 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
2964 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2965 free_nfs_cb_data(data);
2966 return -1;
2967 }
2968 return 0;
2969 }
2970
2971 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2972 {
2973 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
2974 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2975 return -1;
2976 }
2977
2978 return 0;
2979 }
2980
2981
2982
2983
2984 /*
2985 * Async chmod()
2986 */
2987 static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2988 {
2989 struct nfs_cb_data *data = private_data;
2990 struct nfs_context *nfs = data->nfs;
2991 SETATTR3res *res;
2992
2993 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2994
2995 if (status == RPC_STATUS_ERROR) {
2996 data->cb(-EFAULT, nfs, command_data, data->private_data);
2997 free_nfs_cb_data(data);
2998 return;
2999 }
3000 if (status == RPC_STATUS_CANCEL) {
3001 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3002 free_nfs_cb_data(data);
3003 return;
3004 }
3005
3006 res = command_data;
3007 if (res->status != NFS3_OK) {
3008 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3009 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3010 free_nfs_cb_data(data);
3011 return;
3012 }
3013
3014 data->cb(0, nfs, NULL, data->private_data);
3015 free_nfs_cb_data(data);
3016 }
3017
3018 static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3019 {
3020 SETATTR3args args;
3021
3022 memset(&args, 0, sizeof(SETATTR3args));
3023 args.object = data->fh;
3024 args.new_attributes.mode.set_it = 1;
3025 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
3026
3027 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
3028 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3029 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3030 free_nfs_cb_data(data);
3031 return -1;
3032 }
3033 return 0;
3034 }
3035
3036
3037 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3038 {
3039 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
3040 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3041 return -1;
3042 }
3043
3044 return 0;
3045 }
3046
3047 /*
3048 * Async fchmod()
3049 */
3050 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
3051 {
3052 struct nfs_cb_data *data;
3053
3054 data = malloc(sizeof(struct nfs_cb_data));
3055 if (data == NULL) {
3056 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
3057 return -1;
3058 }
3059 memset(data, 0, sizeof(struct nfs_cb_data));
3060 data->nfs = nfs;
3061 data->cb = cb;
3062 data->private_data = private_data;
3063 data->continue_int = mode;
3064 data->fh.data.data_len = nfsfh->fh.data.data_len;
3065 data->fh.data.data_val = malloc(data->fh.data.data_len);
3066 if (data->fh.data.data_val == NULL) {
3067 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3068 free_nfs_cb_data(data);
3069 return -1;
3070 }
3071 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3072
3073 if (nfs_chmod_continue_internal(nfs, data) != 0) {
3074 free_nfs_cb_data(data);
3075 return -1;
3076 }
3077
3078 return 0;
3079 }
3080
3081
3082
3083 /*
3084 * Async chown()
3085 */
3086 static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3087 {
3088 struct nfs_cb_data *data = private_data;
3089 struct nfs_context *nfs = data->nfs;
3090 SETATTR3res *res;
3091
3092 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3093
3094 if (status == RPC_STATUS_ERROR) {
3095 data->cb(-EFAULT, nfs, command_data, data->private_data);
3096 free_nfs_cb_data(data);
3097 return;
3098 }
3099 if (status == RPC_STATUS_CANCEL) {
3100 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3101 free_nfs_cb_data(data);
3102 return;
3103 }
3104
3105 res = command_data;
3106 if (res->status != NFS3_OK) {
3107 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3108 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3109 free_nfs_cb_data(data);
3110 return;
3111 }
3112
3113 data->cb(0, nfs, NULL, data->private_data);
3114 free_nfs_cb_data(data);
3115 }
3116
3117 struct nfs_chown_data {
3118 uid_t uid;
3119 gid_t gid;
3120 };
3121
3122 static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3123 {
3124 SETATTR3args args;
3125 struct nfs_chown_data *chown_data = data->continue_data;
3126
3127 memset(&args, 0, sizeof(SETATTR3args));
3128 args.object = data->fh;
3129 if (chown_data->uid != (uid_t)-1) {
3130 args.new_attributes.uid.set_it = 1;
3131 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
3132 }
3133 if (chown_data->gid != (gid_t)-1) {
3134 args.new_attributes.gid.set_it = 1;
3135 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
3136 }
3137
3138 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
3139 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3140 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3141 free_nfs_cb_data(data);
3142 return -1;
3143 }
3144 return 0;
3145 }
3146
3147
3148 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
3149 {
3150 struct nfs_chown_data *chown_data;
3151
3152 chown_data = malloc(sizeof(struct nfs_chown_data));
3153 if (chown_data == NULL) {
3154 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3155 return -1;
3156 }
3157
3158 chown_data->uid = uid;
3159 chown_data->gid = gid;
3160
3161 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
3162 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3163 return -1;
3164 }
3165
3166 return 0;
3167 }
3168
3169
3170 /*
3171 * Async fchown()
3172 */
3173 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
3174 {
3175 struct nfs_cb_data *data;
3176 struct nfs_chown_data *chown_data;
3177
3178 chown_data = malloc(sizeof(struct nfs_chown_data));
3179 if (chown_data == NULL) {
3180 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
3181 return -1;
3182 }
3183
3184 chown_data->uid = uid;
3185 chown_data->gid = gid;
3186
3187
3188 data = malloc(sizeof(struct nfs_cb_data));
3189 if (data == NULL) {
3190 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
3191 return -1;
3192 }
3193 memset(data, 0, sizeof(struct nfs_cb_data));
3194 data->nfs = nfs;
3195 data->cb = cb;
3196 data->private_data = private_data;
3197 data->continue_data = chown_data;
3198 data->fh.data.data_len = nfsfh->fh.data.data_len;
3199 data->fh.data.data_val = malloc(data->fh.data.data_len);
3200 if (data->fh.data.data_val == NULL) {
3201 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3202 free_nfs_cb_data(data);
3203 return -1;
3204 }
3205 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3206
3207
3208 if (nfs_chown_continue_internal(nfs, data) != 0) {
3209 free_nfs_cb_data(data);
3210 return -1;
3211 }
3212
3213 return 0;
3214 }
3215
3216
3217
3218
3219
3220 /*
3221 * Async utimes()
3222 */
3223 static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3224 {
3225 struct nfs_cb_data *data = private_data;
3226 struct nfs_context *nfs = data->nfs;
3227 SETATTR3res *res;
3228
3229 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3230
3231 if (status == RPC_STATUS_ERROR) {
3232 data->cb(-EFAULT, nfs, command_data, data->private_data);
3233 free_nfs_cb_data(data);
3234 return;
3235 }
3236 if (status == RPC_STATUS_CANCEL) {
3237 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3238 free_nfs_cb_data(data);
3239 return;
3240 }
3241
3242 res = command_data;
3243 if (res->status != NFS3_OK) {
3244 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3245 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3246 free_nfs_cb_data(data);
3247 return;
3248 }
3249
3250 data->cb(0, nfs, NULL, data->private_data);
3251 free_nfs_cb_data(data);
3252 }
3253
3254 static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3255 {
3256 SETATTR3args args;
3257 struct timeval *utimes_data = data->continue_data;
3258
3259 memset(&args, 0, sizeof(SETATTR3args));
3260 args.object = data->fh;
3261 if (utimes_data != NULL) {
3262 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
3263 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
3264 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
3265 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
3266 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
3267 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
3268 } else {
3269 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
3270 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
3271 }
3272
3273 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
3274 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3275 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3276 free_nfs_cb_data(data);
3277 return -1;
3278 }
3279 return 0;
3280 }
3281
3282
3283 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
3284 {
3285 struct timeval *new_times = NULL;
3286
3287 if (times != NULL) {
3288 new_times = malloc(sizeof(struct timeval)*2);
3289 if (new_times == NULL) {
3290 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3291 return -1;
3292 }
3293
3294 memcpy(new_times, times, sizeof(struct timeval)*2);
3295 }
3296
3297 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3298 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3299 return -1;
3300 }
3301
3302 return 0;
3303 }
3304
3305 /*
3306 * Async utime()
3307 */
3308 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
3309 {
3310 struct timeval *new_times = NULL;
3311
3312 if (times != NULL) {
3313 new_times = malloc(sizeof(struct timeval)*2);
3314 if (new_times == NULL) {
3315 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
3316 return -1;
3317 }
3318
3319 new_times[0].tv_sec = times->actime;
3320 new_times[0].tv_usec = 0;
3321 new_times[1].tv_sec = times->modtime;
3322 new_times[1].tv_usec = 0;
3323 }
3324
3325 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
3326 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3327 return -1;
3328 }
3329
3330 return 0;
3331 }
3332
3333
3334 /*
3335 * Async access()
3336 */
3337 static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3338 {
3339 ACCESS3res *res;
3340 struct nfs_cb_data *data = private_data;
3341 struct nfs_context *nfs = data->nfs;
3342 unsigned int nfsmode = 0;
3343
3344 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3345
3346 if (status == RPC_STATUS_ERROR) {
3347 data->cb(-EFAULT, nfs, command_data, data->private_data);
3348 free_nfs_cb_data(data);
3349 return;
3350 }
3351 if (status == RPC_STATUS_CANCEL) {
3352 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3353 free_nfs_cb_data(data);
3354 return;
3355 }
3356
3357 res = command_data;
3358 if (res->status != NFS3_OK) {
3359 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));
3360 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3361 free_nfs_cb_data(data);
3362 return;
3363 }
3364
3365 if (data->continue_int & R_OK) {
3366 nfsmode |= ACCESS3_READ;
3367 }
3368 if (data->continue_int & W_OK) {
3369 nfsmode |= ACCESS3_MODIFY;
3370 }
3371 if (data->continue_int & X_OK) {
3372 nfsmode |= ACCESS3_EXECUTE;
3373 }
3374
3375 if (res->ACCESS3res_u.resok.access != nfsmode) {
3376 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
3377 nfsmode&ACCESS3_READ?'r':'-',
3378 nfsmode&ACCESS3_MODIFY?'w':'-',
3379 nfsmode&ACCESS3_EXECUTE?'x':'-',
3380 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
3381 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
3382 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
3383 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
3384 free_nfs_cb_data(data);
3385 return;
3386 }
3387
3388 data->cb(0, nfs, NULL, data->private_data);
3389 free_nfs_cb_data(data);
3390 }
3391
3392 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3393 {
3394 int nfsmode = 0;
3395 ACCESS3args args;
3396
3397 if (data->continue_int & R_OK) {
3398 nfsmode |= ACCESS3_READ;
3399 }
3400 if (data->continue_int & W_OK) {
3401 nfsmode |= ACCESS3_MODIFY;
3402 }
3403 if (data->continue_int & X_OK) {
3404 nfsmode |= ACCESS3_EXECUTE;
3405 }
3406
3407 memset(&args, 0, sizeof(ACCESS3args));
3408 args.object = data->fh;
3409 args.access = nfsmode;
3410
3411 if (rpc_nfs3_access_async(nfs->rpc, nfs_access_cb, &args, data) != 0) {
3412 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
3413 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3414 free_nfs_cb_data(data);
3415 return -1;
3416 }
3417 return 0;
3418 }
3419
3420 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3421 {
3422 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
3423 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3424 return -1;
3425 }
3426
3427 return 0;
3428 }
3429
3430
3431
3432 /*
3433 * Async symlink()
3434 */
3435 struct nfs_symlink_data {
3436 char *oldpath;
3437 char *newpathparent;
3438 char *newpathobject;
3439 };
3440
3441 static void free_nfs_symlink_data(void *mem)
3442 {
3443 struct nfs_symlink_data *data = mem;
3444
3445 if (data->oldpath != NULL) {
3446 free(data->oldpath);
3447 }
3448 if (data->newpathparent != NULL) {
3449 free(data->newpathparent);
3450 }
3451 if (data->newpathobject != NULL) {
3452 free(data->newpathobject);
3453 }
3454 free(data);
3455 }
3456
3457 static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3458 {
3459 SYMLINK3res *res;
3460 struct nfs_cb_data *data = private_data;
3461 struct nfs_context *nfs = data->nfs;
3462 struct nfs_symlink_data *symlink_data = data->continue_data;
3463
3464 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3465
3466 if (status == RPC_STATUS_ERROR) {
3467 data->cb(-EFAULT, nfs, command_data, data->private_data);
3468 free_nfs_cb_data(data);
3469 return;
3470 }
3471 if (status == RPC_STATUS_CANCEL) {
3472 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3473 free_nfs_cb_data(data);
3474 return;
3475 }
3476
3477 res = command_data;
3478 if (res->status != NFS3_OK) {
3479 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));
3480 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3481 free_nfs_cb_data(data);
3482 return;
3483 }
3484
3485 data->cb(0, nfs, NULL, data->private_data);
3486 free_nfs_cb_data(data);
3487 }
3488
3489 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3490 {
3491 struct nfs_symlink_data *symlink_data = data->continue_data;
3492 SYMLINK3args args;
3493
3494 memset(&args, 0, sizeof(SYMLINK3args));
3495 args.where.dir = data->fh;
3496 args.where.name = symlink_data->newpathobject;
3497 args.symlink.symlink_attributes.mode.set_it = 1;
3498 args.symlink.symlink_attributes.mode.set_mode3_u.mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH;
3499 args.symlink.symlink_data = symlink_data->oldpath;
3500
3501 if (rpc_nfs3_symlink_async(nfs->rpc, nfs_symlink_cb, &args, data) != 0) {
3502 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
3503 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3504 free_nfs_cb_data(data);
3505 return -1;
3506 }
3507 return 0;
3508 }
3509
3510 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3511 {
3512 char *ptr;
3513 struct nfs_symlink_data *symlink_data;
3514
3515 symlink_data = malloc(sizeof(struct nfs_symlink_data));
3516 if (symlink_data == NULL) {
3517 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
3518 return -1;
3519 }
3520 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
3521
3522 symlink_data->oldpath = strdup(oldpath);
3523 if (symlink_data->oldpath == NULL) {
3524 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3525 free_nfs_symlink_data(symlink_data);
3526 return -1;
3527 }
3528
3529 symlink_data->newpathparent = strdup(newpath);
3530 if (symlink_data->newpathparent == NULL) {
3531 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3532 free_nfs_symlink_data(symlink_data);
3533 return -1;
3534 }
3535
3536 ptr = strrchr(symlink_data->newpathparent, '/');
3537 if (ptr == NULL) {
3538 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3539 free_nfs_symlink_data(symlink_data);
3540 return -1;
3541 }
3542 *ptr = 0;
3543 ptr++;
3544
3545 symlink_data->newpathobject = strdup(ptr);
3546 if (symlink_data->newpathobject == NULL) {
3547 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
3548 free_nfs_symlink_data(symlink_data);
3549 return -1;
3550 }
3551
3552 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
3553 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3554 return -1;
3555 }
3556
3557 return 0;
3558 }
3559
3560
3561
3562 /*
3563 * Async rename()
3564 */
3565 struct nfs_rename_data {
3566 char *oldpath;
3567 char *oldobject;
3568 struct nfs_fh3 olddir;
3569 char *newpath;
3570 char *newobject;
3571 struct nfs_fh3 newdir;
3572 };
3573
3574 static void free_nfs_rename_data(void *mem)
3575 {
3576 struct nfs_rename_data *data = mem;
3577
3578 if (data->oldpath != NULL) {
3579 free(data->oldpath);
3580 }
3581 if (data->olddir.data.data_val != NULL) {
3582 free(data->olddir.data.data_val);
3583 }
3584 if (data->newpath != NULL) {
3585 free(data->newpath);
3586 }
3587 if (data->newdir.data.data_val != NULL) {
3588 free(data->newdir.data.data_val);
3589 }
3590 free(data);
3591 }
3592
3593 static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3594 {
3595 RENAME3res *res;
3596 struct nfs_cb_data *data = private_data;
3597 struct nfs_context *nfs = data->nfs;
3598 struct nfs_rename_data *rename_data = data->continue_data;
3599
3600 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3601
3602 if (status == RPC_STATUS_ERROR) {
3603 data->cb(-EFAULT, nfs, command_data, data->private_data);
3604 free_nfs_cb_data(data);
3605 return;
3606 }
3607 if (status == RPC_STATUS_CANCEL) {
3608 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3609 free_nfs_cb_data(data);
3610 return;
3611 }
3612
3613 res = command_data;
3614 if (res->status != NFS3_OK) {
3615 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));
3616 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3617 free_nfs_cb_data(data);
3618 return;
3619 }
3620
3621 data->cb(0, nfs, NULL, data->private_data);
3622 free_nfs_cb_data(data);
3623 }
3624
3625 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3626 {
3627 struct nfs_rename_data *rename_data = data->continue_data;
3628 RENAME3args args;
3629
3630 /* steal the filehandle */
3631 rename_data->newdir = data->fh;
3632 data->fh.data.data_val = NULL;
3633
3634 args.from.dir = rename_data->olddir;
3635 args.from.name = rename_data->oldobject;
3636 args.to.dir = rename_data->newdir;
3637 args.to.name = rename_data->newobject;
3638 if (rpc_nfs3_rename_async(nfs->rpc, nfs_rename_cb, &args, data) != 0) {
3639 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
3640 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3641 free_nfs_cb_data(data);
3642 return -1;
3643 }
3644 return 0;
3645 }
3646
3647
3648 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3649 {
3650 struct nfs_rename_data *rename_data = data->continue_data;
3651
3652 /* steal the filehandle */
3653 rename_data->olddir = data->fh;
3654 data->fh.data.data_val = NULL;
3655
3656 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) {
3657 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
3658 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3659 free_nfs_cb_data(data);
3660 return -1;
3661 }
3662 data->continue_data = NULL;
3663 free_nfs_cb_data(data);
3664
3665 return 0;
3666 }
3667
3668
3669 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3670 {
3671 char *ptr;
3672 struct nfs_rename_data *rename_data;
3673
3674 rename_data = malloc(sizeof(struct nfs_rename_data));
3675 if (rename_data == NULL) {
3676 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
3677 return -1;
3678 }
3679 memset(rename_data, 0, sizeof(struct nfs_rename_data));
3680
3681 rename_data->oldpath = strdup(oldpath);
3682 if (rename_data->oldpath == NULL) {
3683 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3684 free_nfs_rename_data(rename_data);
3685 return -1;
3686 }
3687 ptr = strrchr(rename_data->oldpath, '/');
3688 if (ptr == NULL) {
3689 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
3690 free_nfs_rename_data(rename_data);
3691 return -1;
3692 }
3693 *ptr = 0;
3694 ptr++;
3695 rename_data->oldobject = ptr;
3696
3697
3698 rename_data->newpath = strdup(newpath);
3699 if (rename_data->newpath == NULL) {
3700 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3701 free_nfs_rename_data(rename_data);
3702 return -1;
3703 }
3704 ptr = strrchr(rename_data->newpath, '/');
3705 if (ptr == NULL) {
3706 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3707 free_nfs_rename_data(rename_data);
3708 return -1;
3709 }
3710 *ptr = 0;
3711 ptr++;
3712 rename_data->newobject = ptr;
3713
3714
3715 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
3716 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3717 return -1;
3718 }
3719
3720 return 0;
3721 }
3722
3723
3724 /*
3725 * Async link()
3726 */
3727 struct nfs_link_data {
3728 char *oldpath;
3729 struct nfs_fh3 oldfh;
3730 char *newpath;
3731 char *newobject;
3732 struct nfs_fh3 newdir;
3733 };
3734
3735 static void free_nfs_link_data(void *mem)
3736 {
3737 struct nfs_link_data *data = mem;
3738
3739 if (data->oldpath != NULL) {
3740 free(data->oldpath);
3741 }
3742 if (data->oldfh.data.data_val != NULL) {
3743 free(data->oldfh.data.data_val);
3744 }
3745 if (data->newpath != NULL) {
3746 free(data->newpath);
3747 }
3748 if (data->newdir.data.data_val != NULL) {
3749 free(data->newdir.data.data_val);
3750 }
3751 free(data);
3752 }
3753
3754 static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3755 {
3756 LINK3res *res;
3757 struct nfs_cb_data *data = private_data;
3758 struct nfs_context *nfs = data->nfs;
3759 struct nfs_link_data *link_data = data->continue_data;
3760
3761 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3762
3763 if (status == RPC_STATUS_ERROR) {
3764 data->cb(-EFAULT, nfs, command_data, data->private_data);
3765 free_nfs_cb_data(data);
3766 return;
3767 }
3768 if (status == RPC_STATUS_CANCEL) {
3769 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3770 free_nfs_cb_data(data);
3771 return;
3772 }
3773
3774 res = command_data;
3775 if (res->status != NFS3_OK) {
3776 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));
3777 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3778 free_nfs_cb_data(data);
3779 return;
3780 }
3781
3782 data->cb(0, nfs, NULL, data->private_data);
3783 free_nfs_cb_data(data);
3784 }
3785
3786 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3787 {
3788 struct nfs_link_data *link_data = data->continue_data;
3789 LINK3args args;
3790
3791 /* steal the filehandle */
3792 link_data->newdir = data->fh;
3793 data->fh.data.data_val = NULL;
3794
3795 memset(&args, 0, sizeof(LINK3args));
3796 args.file = link_data->oldfh;
3797 args.link.dir = link_data->newdir;
3798 args.link.name = link_data->newobject;
3799 if (rpc_nfs3_link_async(nfs->rpc, nfs_link_cb, &args, data) != 0) {
3800 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
3801 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3802 free_nfs_cb_data(data);
3803 return -1;
3804 }
3805 return 0;
3806 }
3807
3808
3809 static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3810 {
3811 struct nfs_link_data *link_data = data->continue_data;
3812
3813 /* steal the filehandle */
3814 link_data->oldfh = data->fh;
3815 data->fh.data.data_val = NULL;
3816
3817 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) {
3818 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
3819 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3820 free_nfs_cb_data(data);
3821 return -1;
3822 }
3823 data->continue_data = NULL;
3824 free_nfs_cb_data(data);
3825
3826 return 0;
3827 }
3828
3829
3830 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3831 {
3832 char *ptr;
3833 struct nfs_link_data *link_data;
3834
3835 link_data = malloc(sizeof(struct nfs_link_data));
3836 if (link_data == NULL) {
3837 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
3838 return -1;
3839 }
3840 memset(link_data, 0, sizeof(struct nfs_link_data));
3841
3842 link_data->oldpath = strdup(oldpath);
3843 if (link_data->oldpath == NULL) {
3844 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
3845 free_nfs_link_data(link_data);
3846 return -1;
3847 }
3848
3849 link_data->newpath = strdup(newpath);
3850 if (link_data->newpath == NULL) {
3851 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
3852 free_nfs_link_data(link_data);
3853 return -1;
3854 }
3855 ptr = strrchr(link_data->newpath, '/');
3856 if (ptr == NULL) {
3857 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
3858 free_nfs_link_data(link_data);
3859 return -1;
3860 }
3861 *ptr = 0;
3862 ptr++;
3863 link_data->newobject = ptr;
3864
3865
3866 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
3867 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3868 return -1;
3869 }
3870
3871 return 0;
3872 }
3873
3874
3875 //qqq replace later with lseek()
3876 uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
3877 {
3878 return nfsfh->offset;
3879 }
3880
3881
3882
3883 /*
3884 * Get the maximum supported READ3 size by the server
3885 */
3886 uint64_t nfs_get_readmax(struct nfs_context *nfs)
3887 {
3888 return nfs->readmax;
3889 }
3890
3891 /*
3892 * Get the maximum supported WRITE3 size by the server
3893 */
3894 uint64_t nfs_get_writemax(struct nfs_context *nfs)
3895 {
3896 return nfs->writemax;
3897 }
3898
3899 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
3900 {
3901 va_list ap;
3902 char *str = NULL;
3903
3904 va_start(ap, error_string);
3905 str = malloc(1024);
3906 vsnprintf(str, 1024, error_string, ap);
3907 if (nfs->rpc->error_string != NULL) {
3908 free(nfs->rpc->error_string);
3909 }
3910 nfs->rpc->error_string = str;
3911 va_end(ap);
3912 }
3913
3914
3915
3916 struct mount_cb_data {
3917 rpc_cb cb;
3918 void *private_data;
3919 char *server;
3920 };
3921
3922 static void free_mount_cb_data(struct mount_cb_data *data)
3923 {
3924 if (data->server != NULL) {
3925 free(data->server);
3926 data->server = NULL;
3927 }
3928
3929 free(data);
3930 }
3931
3932 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3933 {
3934 struct mount_cb_data *data = private_data;
3935
3936 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3937
3938 if (status == RPC_STATUS_ERROR) {
3939 data->cb(rpc, -EFAULT, command_data, data->private_data);
3940 free_mount_cb_data(data);
3941 return;
3942 }
3943 if (status == RPC_STATUS_CANCEL) {
3944 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3945 free_mount_cb_data(data);
3946 return;
3947 }
3948
3949 data->cb(rpc, 0, command_data, data->private_data);
3950 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
3951 rpc_set_error(rpc, "Failed to disconnect\n");
3952 }
3953 free_mount_cb_data(data);
3954 }
3955
3956 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3957 {
3958 struct mount_cb_data *data = private_data;
3959
3960 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3961
3962 /* Dont want any more callbacks even if the socket is closed */
3963 rpc->connect_cb = NULL;
3964
3965 if (status == RPC_STATUS_ERROR) {
3966 data->cb(rpc, -EFAULT, command_data, data->private_data);
3967 free_mount_cb_data(data);
3968 return;
3969 }
3970 if (status == RPC_STATUS_CANCEL) {
3971 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3972 free_mount_cb_data(data);
3973 return;
3974 }
3975
3976 if (rpc_mount3_export_async(rpc, mount_export_5_cb, data) != 0) {
3977 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3978 free_mount_cb_data(data);
3979 return;
3980 }
3981 }
3982
3983 static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3984 {
3985 struct mount_cb_data *data = private_data;
3986 uint32_t mount_port;
3987
3988 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3989
3990 if (status == RPC_STATUS_ERROR) {
3991 data->cb(rpc, -EFAULT, command_data, data->private_data);
3992 free_mount_cb_data(data);
3993 return;
3994 }
3995 if (status == RPC_STATUS_CANCEL) {
3996 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3997 free_mount_cb_data(data);
3998 return;
3999 }
4000
4001 mount_port = *(uint32_t *)command_data;
4002 if (mount_port == 0) {
4003 rpc_set_error(rpc, "RPC error. Mount program is not available");
4004 data->cb(rpc, -ENOENT, command_data, data->private_data);
4005 free_mount_cb_data(data);
4006 return;
4007 }
4008
4009 rpc_disconnect(rpc, "normal disconnect");
4010 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
4011 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4012 free_mount_cb_data(data);
4013 return;
4014 }
4015 }
4016
4017 static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4018 {
4019 struct mount_cb_data *data = private_data;
4020
4021 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4022
4023 if (status == RPC_STATUS_ERROR) {
4024 data->cb(rpc, -EFAULT, command_data, data->private_data);
4025 free_mount_cb_data(data);
4026 return;
4027 }
4028 if (status == RPC_STATUS_CANCEL) {
4029 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4030 free_mount_cb_data(data);
4031 return;
4032 }
4033
4034 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
4035 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4036 free_mount_cb_data(data);
4037 return;
4038 }
4039 }
4040
4041 static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4042 {
4043 struct mount_cb_data *data = private_data;
4044
4045 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4046
4047 /* Dont want any more callbacks even if the socket is closed */
4048 rpc->connect_cb = NULL;
4049
4050 if (status == RPC_STATUS_ERROR) {
4051 data->cb(rpc, -EFAULT, command_data, data->private_data);
4052 free_mount_cb_data(data);
4053 return;
4054 }
4055 if (status == RPC_STATUS_CANCEL) {
4056 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4057 free_mount_cb_data(data);
4058 return;
4059 }
4060
4061 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
4062 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4063 free_mount_cb_data(data);
4064 return;
4065 }
4066 }
4067
4068 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
4069 {
4070 struct mount_cb_data *data;
4071
4072 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4073
4074 data = malloc(sizeof(struct mount_cb_data));
4075 if (data == NULL) {
4076 return -1;
4077 }
4078 memset(data, 0, sizeof(struct mount_cb_data));
4079 data->cb = cb;
4080 data->private_data = private_data;
4081 data->server = strdup(server);
4082 if (data->server == NULL) {
4083 free_mount_cb_data(data);
4084 return -1;
4085 }
4086 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
4087 free_mount_cb_data(data);
4088 return -1;
4089 }
4090
4091 return 0;
4092 }
4093
4094 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
4095 {
4096 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
4097 return nfs->rpc;
4098 }
4099
4100 const char *nfs_get_server(struct nfs_context *nfs) {
4101 return nfs->server;
4102 }
4103
4104 const char *nfs_get_export(struct nfs_context *nfs) {
4105 return nfs->export;
4106 }
4107
4108 const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
4109 return &nfs->rootfh;
4110 }
4111
4112 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
4113 return &nfsfh->fh;
4114 }
libnfs Piment Noir Debian package repository