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[deb_libnfs.git] / lib / libnfs.c
1 /*
2 Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>.
16 */
17 /*
18 * High level api to nfs filesystems
19 */
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #ifdef AROS
25 #include "aros_compat.h"
26 #endif
27
28 #ifdef WIN32
29 #include "win32_compat.h"
30 #endif
31
32 #ifdef HAVE_UTIME_H
33 #include <utime.h>
34 #endif
35
36 #ifdef ANDROID
37 #define statvfs statfs
38 #endif
39
40 #define _GNU_SOURCE
41
42 #ifdef HAVE_UNISTD_H
43 #include <unistd.h>
44 #endif
45
46 #ifdef HAVE_SYS_VFS_H
47 #include <sys/vfs.h>
48 #endif
49
50 #ifdef HAVE_SYS_STATVFS_H
51 #include <sys/statvfs.h>
52 #endif
53
54 #ifdef HAVE_NETINET_IN_H
55 #include <netinet/in.h>
56 #endif
57
58 #ifdef HAVE_STRINGS_H
59 #include <strings.h>
60 #endif
61
62 #ifdef MAJOR_IN_MKDEV
63 #include <sys/mkdev.h>
64 #endif
65
66 #ifdef MAJOR_IN_SYSMACROS
67 #include <sys/sysmacros.h>
68 #endif
69
70 #include <stdio.h>
71 #include <stdarg.h>
72 #include <stdlib.h>
73 #include <string.h>
74 #include <assert.h>
75 #include <errno.h>
76 #include <time.h>
77 #include <sys/types.h>
78 #include <sys/stat.h>
79 #include <fcntl.h>
80 #include "libnfs-zdr.h"
81 #include "slist.h"
82 #include "libnfs.h"
83 #include "libnfs-raw.h"
84 #include "libnfs-raw-mount.h"
85 #include "libnfs-raw-nfs.h"
86 #include "libnfs-raw-portmap.h"
87 #include "libnfs-private.h"
88
89 #define MAX_DIR_CACHE 128
90 #define MAX_LINK_COUNT 40
91
92 struct nfsdir {
93 struct nfs_fh3 fh;
94 fattr3 attr;
95 struct nfsdir *next;
96
97 struct nfsdirent *entries;
98 struct nfsdirent *current;
99 };
100
101 struct nfs_readahead {
102 uint64_t fh_offset;
103 uint64_t last_offset;
104 uint64_t buf_offset;
105 uint64_t buf_count;
106 time_t buf_ts;
107 void *buf;
108 uint32_t cur_ra;
109 };
110
111 struct nfsfh {
112 struct nfs_fh3 fh;
113 int is_sync;
114 int is_append;
115 uint64_t offset;
116 struct nfs_readahead ra;
117 };
118
119 struct nfs_context {
120 struct rpc_context *rpc;
121 char *server;
122 char *export;
123 struct nfs_fh3 rootfh;
124 uint64_t readmax;
125 uint64_t writemax;
126 char *cwd;
127 struct nfsdir *dircache;
128 };
129
130 void nfs_free_nfsdir(struct nfsdir *nfsdir)
131 {
132 while (nfsdir->entries) {
133 struct nfsdirent *dirent = nfsdir->entries->next;
134 if (nfsdir->entries->name != NULL) {
135 free(nfsdir->entries->name);
136 }
137 free(nfsdir->entries);
138 nfsdir->entries = dirent;
139 }
140 free(nfsdir->fh.data.data_val);
141 free(nfsdir);
142 }
143
144 static void nfs_dircache_add(struct nfs_context *nfs, struct nfsdir *nfsdir)
145 {
146 int i;
147 LIBNFS_LIST_ADD(&nfs->dircache, nfsdir);
148
149 for (nfsdir = nfs->dircache, i = 0; nfsdir; nfsdir = nfsdir->next, i++) {
150 if (i > MAX_DIR_CACHE) {
151 LIBNFS_LIST_REMOVE(&nfs->dircache, nfsdir);
152 nfs_free_nfsdir(nfsdir);
153 break;
154 }
155 }
156 }
157
158 static struct nfsdir *nfs_dircache_find(struct nfs_context *nfs, struct nfs_fh3 *fh)
159 {
160 struct nfsdir *nfsdir;
161
162 for (nfsdir = nfs->dircache; nfsdir; nfsdir = nfsdir->next) {
163 if (nfsdir->fh.data.data_len == fh->data.data_len &&
164 !memcmp(nfsdir->fh.data.data_val, fh->data.data_val, fh->data.data_len)) {
165 LIBNFS_LIST_REMOVE(&nfs->dircache, nfsdir);
166 return nfsdir;
167 }
168 }
169
170 return NULL;
171 }
172
173 struct nfs_cb_data;
174 typedef int (*continue_func)(struct nfs_context *nfs, fattr3 *attr,
175 struct nfs_cb_data *data);
176
177 struct nfs_cb_data {
178 struct nfs_context *nfs;
179 struct nfsfh *nfsfh;
180 char *saved_path, *path;
181 int link_count, no_follow;
182
183 nfs_cb cb;
184 void *private_data;
185
186 continue_func continue_cb;
187 void *continue_data;
188 void (*free_continue_data)(void *);
189 int continue_int;
190
191 struct nfs_fh3 fh;
192
193 /* for multi-read/write calls. */
194 int error;
195 int cancel;
196 int oom;
197 int num_calls;
198 uint64_t offset, count, max_offset, org_offset, org_count;
199 char *buffer;
200 char *usrbuf;
201 };
202
203 struct nfs_mcb_data {
204 struct nfs_cb_data *data;
205 uint64_t offset;
206 uint64_t count;
207 int update_pos;
208 };
209
210 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, fattr3 *attr, struct nfs_cb_data *data, struct nfs_fh3 *fh);
211 static int nfs_normalize_path(struct nfs_context *nfs, char *path);
212
213 void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
214 {
215 rpc_set_auth(nfs->rpc, auth);
216 }
217
218 int nfs_get_fd(struct nfs_context *nfs)
219 {
220 return rpc_get_fd(nfs->rpc);
221 }
222
223 int nfs_queue_length(struct nfs_context *nfs)
224 {
225 return rpc_queue_length(nfs->rpc);
226 }
227
228 int nfs_which_events(struct nfs_context *nfs)
229 {
230 return rpc_which_events(nfs->rpc);
231 }
232
233 int nfs_service(struct nfs_context *nfs, int revents)
234 {
235 return rpc_service(nfs->rpc, revents);
236 }
237
238 char *nfs_get_error(struct nfs_context *nfs)
239 {
240 return rpc_get_error(nfs->rpc);
241 };
242
243 static int nfs_set_context_args(struct nfs_context *nfs, char *arg, char *val)
244 {
245 if (!strcmp(arg, "tcp-syncnt")) {
246 rpc_set_tcp_syncnt(nfs_get_rpc_context(nfs), atoi(val));
247 } else if (!strcmp(arg, "uid")) {
248 rpc_set_uid(nfs_get_rpc_context(nfs), atoi(val));
249 } else if (!strcmp(arg, "gid")) {
250 rpc_set_gid(nfs_get_rpc_context(nfs), atoi(val));
251 } else if (!strcmp(arg, "readahaed")) {
252 rpc_set_readahead(nfs_get_rpc_context(nfs), atoi(val));
253 }
254 return 0;
255 }
256
257 static struct nfs_url *nfs_parse_url(struct nfs_context *nfs, const char *url, int dir, int incomplete)
258 {
259 struct nfs_url *urls;
260 char *strp, *flagsp, *strp2;
261
262 if (strncmp(url, "nfs://", 6)) {
263 rpc_set_error(nfs->rpc, "Invalid URL specified");
264 return NULL;
265 }
266
267 urls = malloc(sizeof(struct nfs_url));
268 if (urls == NULL) {
269 rpc_set_error(nfs->rpc, "Out of memory");
270 return NULL;
271 }
272
273 memset(urls, 0x00, sizeof(struct nfs_url));
274 urls->server = strdup(url + 6);
275 if (urls->server == NULL) {
276 nfs_destroy_url(urls);
277 rpc_set_error(nfs->rpc, "Out of memory");
278 return NULL;
279 }
280
281 if (urls->server[0] == '/' || urls->server[0] == '\0' ||
282 urls->server[0] == '?') {
283 if (incomplete) {
284 flagsp = strchr(urls->server, '?');
285 goto flags;
286 }
287 nfs_destroy_url(urls);
288 rpc_set_error(nfs->rpc, "Invalid server string");
289 return NULL;
290 }
291
292 strp = strchr(urls->server, '/');
293 if (strp == NULL) {
294 if (incomplete) {
295 flagsp = strchr(urls->server, '?');
296 goto flags;
297 }
298 nfs_destroy_url(urls);
299 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
300 return NULL;
301 }
302
303 urls->path = strdup(strp);
304 if (urls->path == NULL) {
305 nfs_destroy_url(urls);
306 rpc_set_error(nfs->rpc, "Out of memory");
307 return NULL;
308 }
309 *strp = 0;
310
311 if (dir) {
312 flagsp = strchr(urls->path, '?');
313 goto flags;
314 }
315
316 strp = strrchr(urls->path, '/');
317 if (strp == NULL) {
318 if (incomplete) {
319 flagsp = strchr(urls->path, '?');
320 goto flags;
321 }
322 nfs_destroy_url(urls);
323 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
324 return NULL;
325 }
326 urls->file = strdup(strp);
327 if (urls->path == NULL) {
328 nfs_destroy_url(urls);
329 rpc_set_error(nfs->rpc, "Out of memory");
330 return NULL;
331 }
332 *strp = 0;
333 flagsp = strchr(urls->file, '?');
334
335 flags:
336 if (flagsp) {
337 *flagsp = 0;
338 }
339
340 if (urls->file && !strlen(urls->file)) {
341 free(urls->file);
342 urls->file = NULL;
343 if (!incomplete) {
344 nfs_destroy_url(urls);
345 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
346 return NULL;
347 }
348 }
349
350 while (flagsp != NULL && *(flagsp+1) != 0) {
351 strp = flagsp + 1;
352 flagsp = strchr(strp, '&');
353 if (flagsp) {
354 *flagsp = 0;
355 }
356 strp2 = strchr(strp, '=');
357 if (strp2) {
358 *strp2 = 0;
359 strp2++;
360 nfs_set_context_args(nfs, strp, strp2);
361 }
362 }
363
364 if (urls->server && strlen(urls->server) <= 1) {
365 free(urls->server);
366 urls->server = NULL;
367 }
368
369 return urls;
370 }
371
372 struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url)
373 {
374 return nfs_parse_url(nfs, url, 0, 0);
375 }
376
377 struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url)
378 {
379 return nfs_parse_url(nfs, url, 1, 0);
380 }
381
382 struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url)
383 {
384 return nfs_parse_url(nfs, url, 0, 1);
385 }
386
387
388 void nfs_destroy_url(struct nfs_url *url)
389 {
390 if (url) {
391 free(url->server);
392 free(url->path);
393 free(url->file);
394 }
395 free(url);
396 }
397
398 struct nfs_context *nfs_init_context(void)
399 {
400 struct nfs_context *nfs;
401
402 nfs = malloc(sizeof(struct nfs_context));
403 if (nfs == NULL) {
404 return NULL;
405 }
406 memset(nfs, 0, sizeof(struct nfs_context));
407
408 nfs->rpc = rpc_init_context();
409 if (nfs->rpc == NULL) {
410 free(nfs);
411 return NULL;
412 }
413
414 nfs->cwd = strdup("/");
415
416 return nfs;
417 }
418
419 void nfs_destroy_context(struct nfs_context *nfs)
420 {
421 rpc_destroy_context(nfs->rpc);
422 nfs->rpc = NULL;
423
424 if (nfs->server) {
425 free(nfs->server);
426 nfs->server = NULL;
427 }
428
429 if (nfs->export) {
430 free(nfs->export);
431 nfs->export = NULL;
432 }
433
434 if (nfs->cwd) {
435 free(nfs->cwd);
436 nfs->cwd = NULL;
437 }
438
439 if (nfs->rootfh.data.data_val != NULL) {
440 free(nfs->rootfh.data.data_val);
441 nfs->rootfh.data.data_val = NULL;
442 }
443
444 while (nfs->dircache) {
445 struct nfsdir *nfsdir = nfs->dircache;
446 LIBNFS_LIST_REMOVE(&nfs->dircache, nfsdir);
447 nfs_free_nfsdir(nfsdir);
448 }
449
450 free(nfs);
451 }
452
453 struct rpc_cb_data {
454 char *server;
455 uint32_t program;
456 uint32_t version;
457
458 rpc_cb cb;
459 void *private_data;
460 };
461
462 void free_rpc_cb_data(struct rpc_cb_data *data)
463 {
464 free(data->server);
465 data->server = NULL;
466 free(data);
467 }
468
469 static void rpc_connect_program_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
470 {
471 struct rpc_cb_data *data = private_data;
472
473 assert(rpc->magic == RPC_CONTEXT_MAGIC);
474
475 /* Dont want any more callbacks even if the socket is closed */
476 rpc->connect_cb = NULL;
477
478 if (status == RPC_STATUS_ERROR) {
479 data->cb(rpc, status, command_data, data->private_data);
480 free_rpc_cb_data(data);
481 return;
482 }
483 if (status == RPC_STATUS_CANCEL) {
484 data->cb(rpc, status, "Command was cancelled", data->private_data);
485 free_rpc_cb_data(data);
486 return;
487 }
488
489 data->cb(rpc, status, NULL, data->private_data);
490 free_rpc_cb_data(data);
491 }
492
493 static void rpc_connect_program_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
494 {
495 struct rpc_cb_data *data = private_data;
496
497 assert(rpc->magic == RPC_CONTEXT_MAGIC);
498
499 /* Dont want any more callbacks even if the socket is closed */
500 rpc->connect_cb = NULL;
501
502 if (status == RPC_STATUS_ERROR) {
503 data->cb(rpc, status, command_data, data->private_data);
504 free_rpc_cb_data(data);
505 return;
506 }
507 if (status == RPC_STATUS_CANCEL) {
508 data->cb(rpc, status, "Command was cancelled", data->private_data);
509 free_rpc_cb_data(data);
510 return;
511 }
512
513 switch (data->program) {
514 case MOUNT_PROGRAM:
515 if (rpc_mount3_null_async(rpc, rpc_connect_program_5_cb,
516 data) != 0) {
517 data->cb(rpc, status, command_data, data->private_data);
518 free_rpc_cb_data(data);
519 return;
520 }
521 return;
522 case NFS_PROGRAM:
523 if (rpc_nfs3_null_async(rpc, rpc_connect_program_5_cb,
524 data) != 0) {
525 data->cb(rpc, status, command_data, data->private_data);
526 free_rpc_cb_data(data);
527 return;
528 }
529 return;
530 }
531
532 data->cb(rpc, status, NULL, data->private_data);
533 free_rpc_cb_data(data);
534 }
535
536 static void rpc_connect_program_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
537 {
538 struct rpc_cb_data *data = private_data;
539 struct pmap3_string_result *gar;
540 uint32_t rpc_port = 0;
541 unsigned char *ptr;
542
543 assert(rpc->magic == RPC_CONTEXT_MAGIC);
544
545 if (status == RPC_STATUS_ERROR) {
546 data->cb(rpc, status, command_data, data->private_data);
547 free_rpc_cb_data(data);
548 return;
549 }
550 if (status == RPC_STATUS_CANCEL) {
551 data->cb(rpc, status, "Command was cancelled", data->private_data);
552 free_rpc_cb_data(data);
553 return;
554 }
555
556 switch (rpc->s.ss_family) {
557 case AF_INET:
558 rpc_port = *(uint32_t *)command_data;
559 break;
560 case AF_INET6:
561 /* ouch. portmapper and ipv6 are not great */
562 gar = command_data;
563 if (gar->addr == NULL) {
564 break;
565 }
566 ptr = strrchr(gar->addr, '.');
567 if (ptr == NULL) {
568 break;
569 }
570 rpc_port = atoi(ptr + 1);
571 *ptr = 0;
572 ptr = strrchr(gar->addr, '.');
573 if (ptr == NULL) {
574 break;
575 }
576 rpc_port += 256 * atoi(ptr + 1);
577 break;
578 }
579 if (rpc_port == 0) {
580 rpc_set_error(rpc, "RPC error. Program is not available on %s", data->server);
581 data->cb(rpc, RPC_STATUS_ERROR, rpc_get_error(rpc), data->private_data);
582 free_rpc_cb_data(data);
583 return;
584 }
585
586 rpc_disconnect(rpc, "normal disconnect");
587 if (rpc_connect_async(rpc, data->server, rpc_port, rpc_connect_program_4_cb, data) != 0) {
588 data->cb(rpc, status, command_data, data->private_data);
589 free_rpc_cb_data(data);
590 return;
591 }
592 }
593
594 static void rpc_connect_program_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
595 {
596 struct rpc_cb_data *data = private_data;
597 struct pmap3_mapping map;
598
599 assert(rpc->magic == RPC_CONTEXT_MAGIC);
600
601 if (status == RPC_STATUS_ERROR) {
602 data->cb(rpc, status, command_data, data->private_data);
603 free_rpc_cb_data(data);
604 return;
605 }
606 if (status == RPC_STATUS_CANCEL) {
607 data->cb(rpc, status, "Command was cancelled", data->private_data);
608 free_rpc_cb_data(data);
609 return;
610 }
611
612 switch (rpc->s.ss_family) {
613 case AF_INET:
614 if (rpc_pmap2_getport_async(rpc, data->program, data->version, IPPROTO_TCP, rpc_connect_program_3_cb, private_data) != 0) {
615 data->cb(rpc, status, command_data, data->private_data);
616 free_rpc_cb_data(data);
617 return;
618 }
619 break;
620 case AF_INET6:
621 map.prog=data->program;
622 map.vers=data->version;
623 map.netid="";
624 map.addr="";
625 map.owner="";
626 if (rpc_pmap3_getaddr_async(rpc, &map, rpc_connect_program_3_cb, private_data) != 0) {
627 data->cb(rpc, status, command_data, data->private_data);
628 free_rpc_cb_data(data);
629 return;
630 }
631 break;
632 }
633 }
634
635 static void rpc_connect_program_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
636 {
637 struct rpc_cb_data *data = private_data;
638
639 assert(rpc->magic == RPC_CONTEXT_MAGIC);
640
641 /* Dont want any more callbacks even if the socket is closed */
642 rpc->connect_cb = NULL;
643
644 if (status == RPC_STATUS_ERROR) {
645 data->cb(rpc, status, command_data, data->private_data);
646 free_rpc_cb_data(data);
647 return;
648 }
649 if (status == RPC_STATUS_CANCEL) {
650 data->cb(rpc, status, "Command was cancelled", data->private_data);
651 free_rpc_cb_data(data);
652 return;
653 }
654
655 switch (rpc->s.ss_family) {
656 case AF_INET:
657 if (rpc_pmap2_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
658 data->cb(rpc, status, command_data, data->private_data);
659 free_rpc_cb_data(data);
660 return;
661 }
662 break;
663 case AF_INET6:
664 if (rpc_pmap3_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
665 data->cb(rpc, status, command_data, data->private_data);
666 free_rpc_cb_data(data);
667 return;
668 }
669 break;
670 }
671 }
672
673 int rpc_connect_program_async(struct rpc_context *rpc, const char *server, int program, int version, rpc_cb cb, void *private_data)
674 {
675 struct rpc_cb_data *data;
676
677 data = malloc(sizeof(struct rpc_cb_data));
678 if (data == NULL) {
679 return -1;
680 }
681 memset(data, 0, sizeof(struct rpc_cb_data));
682 data->server = strdup(server);
683 data->program = program;
684 data->version = version;
685
686 data->cb = cb;
687 data->private_data = private_data;
688
689 if (rpc_connect_async(rpc, server, 111, rpc_connect_program_1_cb, data) != 0) {
690 rpc_set_error(rpc, "Failed to start connection");
691 free_rpc_cb_data(data);
692 return -1;
693 }
694 return 0;
695 }
696
697 static void free_nfs_cb_data(struct nfs_cb_data *data)
698 {
699 if (data->continue_data != NULL) {
700 assert(data->free_continue_data);
701 data->free_continue_data(data->continue_data);
702 }
703
704 free(data->saved_path);
705 free(data->fh.data.data_val);
706 free(data->buffer);
707
708 free(data);
709 }
710
711 static void free_nfsfh(struct nfsfh *nfsfh)
712 {
713 if (nfsfh->fh.data.data_val != NULL) {
714 free(nfsfh->fh.data.data_val);
715 nfsfh->fh.data.data_val = NULL;
716 }
717 free(nfsfh->ra.buf);
718 free(nfsfh);
719 }
720
721
722 static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
723 {
724 struct nfs_cb_data *data = private_data;
725 struct nfs_context *nfs = data->nfs;
726
727 assert(rpc->magic == RPC_CONTEXT_MAGIC);
728
729 if (status == RPC_STATUS_ERROR) {
730 data->cb(-EFAULT, nfs, command_data, data->private_data);
731 free_nfs_cb_data(data);
732 return;
733 }
734 if (status == RPC_STATUS_CANCEL) {
735 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
736 free_nfs_cb_data(data);
737 return;
738 }
739
740 data->cb(0, nfs, NULL, data->private_data);
741 free_nfs_cb_data(data);
742 }
743
744 static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
745 {
746 struct nfs_cb_data *data = private_data;
747 struct nfs_context *nfs = data->nfs;
748 FSINFO3res *res = command_data;
749 struct GETATTR3args args;
750
751 assert(rpc->magic == RPC_CONTEXT_MAGIC);
752
753 if (status == RPC_STATUS_ERROR) {
754 data->cb(-EFAULT, nfs, command_data, data->private_data);
755 free_nfs_cb_data(data);
756 return;
757 }
758 if (status == RPC_STATUS_CANCEL) {
759 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
760 free_nfs_cb_data(data);
761 return;
762 }
763
764 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
765 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
766
767 memset(&args, 0, sizeof(GETATTR3args));
768 args.object = nfs->rootfh;
769
770 if (rpc_nfs3_getattr_async(rpc, nfs_mount_10_cb, &args, data) != 0) {
771 data->cb(-ENOMEM, nfs, command_data, data->private_data);
772 free_nfs_cb_data(data);
773 return;
774 }
775 }
776
777 static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
778 {
779 struct nfs_cb_data *data = private_data;
780 struct nfs_context *nfs = data->nfs;
781 struct FSINFO3args args;
782
783 assert(rpc->magic == RPC_CONTEXT_MAGIC);
784
785 if (status == RPC_STATUS_ERROR) {
786 data->cb(-EFAULT, nfs, command_data, data->private_data);
787 free_nfs_cb_data(data);
788 return;
789 }
790 if (status == RPC_STATUS_CANCEL) {
791 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
792 free_nfs_cb_data(data);
793 return;
794 }
795
796 /* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
797 rpc_set_autoreconnect(rpc);
798
799 args.fsroot = nfs->rootfh;
800 if (rpc_nfs3_fsinfo_async(rpc, nfs_mount_9_cb, &args, data) != 0) {
801 data->cb(-ENOMEM, nfs, command_data, data->private_data);
802 free_nfs_cb_data(data);
803 return;
804 }
805 }
806
807 static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
808 {
809 struct nfs_cb_data *data = private_data;
810 struct nfs_context *nfs = data->nfs;
811 mountres3 *res;
812
813 assert(rpc->magic == RPC_CONTEXT_MAGIC);
814
815 if (status == RPC_STATUS_ERROR) {
816 data->cb(-EFAULT, nfs, command_data, data->private_data);
817 free_nfs_cb_data(data);
818 return;
819 }
820 if (status == RPC_STATUS_CANCEL) {
821 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
822 free_nfs_cb_data(data);
823 return;
824 }
825
826 res = command_data;
827 if (res->fhs_status != MNT3_OK) {
828 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));
829 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
830 free_nfs_cb_data(data);
831 return;
832 }
833
834 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
835 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
836 if (nfs->rootfh.data.data_val == NULL) {
837 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
838 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
839 free_nfs_cb_data(data);
840 return;
841 }
842 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
843
844 rpc_disconnect(rpc, "normal disconnect");
845
846 if (rpc_connect_program_async(nfs->rpc, nfs->server, NFS_PROGRAM, NFS_V3, nfs_mount_8_cb, data) != 0) {
847 data->cb(-ENOMEM, nfs, command_data, data->private_data);
848 free_nfs_cb_data(data);
849 return;
850 }
851 }
852
853
854 static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
855 {
856 struct nfs_cb_data *data = private_data;
857 struct nfs_context *nfs = data->nfs;
858
859 assert(rpc->magic == RPC_CONTEXT_MAGIC);
860
861 if (status == RPC_STATUS_ERROR) {
862 data->cb(-EFAULT, nfs, command_data, data->private_data);
863 free_nfs_cb_data(data);
864 return;
865 }
866 if (status == RPC_STATUS_CANCEL) {
867 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
868 free_nfs_cb_data(data);
869 return;
870 }
871
872 if (rpc_mount3_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
873 data->cb(-ENOMEM, nfs, command_data, data->private_data);
874 free_nfs_cb_data(data);
875 return;
876 }
877 }
878
879 /*
880 * Async call for mounting an nfs share and geting the root filehandle
881 */
882 int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
883 {
884 struct nfs_cb_data *data;
885 char *new_server, *new_export;
886
887 data = malloc(sizeof(struct nfs_cb_data));
888 if (data == NULL) {
889 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
890 return -1;
891 }
892 memset(data, 0, sizeof(struct nfs_cb_data));
893 new_server = strdup(server);
894 new_export = strdup(export);
895 if (nfs->server != NULL) {
896 free(nfs->server);
897 }
898 nfs->server = new_server;
899 if (nfs->export != NULL) {
900 free(nfs->export);
901 }
902 nfs->export = new_export;
903 data->nfs = nfs;
904 data->cb = cb;
905 data->private_data = private_data;
906
907 if (rpc_connect_program_async(nfs->rpc, server, MOUNT_PROGRAM, MOUNT_V3, nfs_mount_5_cb, data) != 0) {
908 rpc_set_error(nfs->rpc, "Failed to start connection");
909 free_nfs_cb_data(data);
910 return -1;
911 }
912
913 return 0;
914 }
915
916
917
918 /*
919 * Functions to first look up a path, component by component, and then finally call a specific function once
920 * the filehandle for the final component is found.
921 */
922 static void nfs_lookup_path_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
923 {
924 struct nfs_cb_data *data = private_data;
925 struct nfs_context *nfs = data->nfs;
926 READLINK3res *res;
927 char *path, *newpath;
928
929 assert(rpc->magic == RPC_CONTEXT_MAGIC);
930
931 if (status == RPC_STATUS_ERROR) {
932 data->cb(-EFAULT, nfs, command_data, data->private_data);
933 free_nfs_cb_data(data);
934 return;
935 }
936 if (status == RPC_STATUS_CANCEL) {
937 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
938 free_nfs_cb_data(data);
939 return;
940 }
941
942 res = command_data;
943 if (res->status != NFS3_OK) {
944 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));
945 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
946 free_nfs_cb_data(data);
947 return;
948 }
949
950 path = res->READLINK3res_u.resok.data;
951
952 /* Handle absolute paths, ensuring that the path lies within the
953 * export. */
954 if (path[0] == '/') {
955 if (strstr(path, nfs->export) == path) {
956 char *ptr = path + strlen(nfs->export);
957 if (*ptr == '/') {
958 newpath = strdup(ptr);
959 } else if (*ptr == '\0') {
960 newpath = strdup("/");
961 } else {
962 data->cb(-ENOENT, nfs, "Symbolic link points outside export", data->private_data);
963 free_nfs_cb_data(data);
964 return;
965 }
966 } else {
967 data->cb(-ENOENT, nfs, "Symbolic link points outside export", data->private_data);
968 free_nfs_cb_data(data);
969 return;
970 }
971
972 if (!newpath)
973 goto nomem;
974 } else {
975 /* Handle relative paths, both the case where the current
976 * component is an intermediate component and when it is the
977 * final component. */
978 if (data->path[0]) {
979 /* Since path points to a component and saved_path
980 * always starts with '/', path[-1] is valid. */
981 data->path[-1] = '\0';
982 newpath = malloc(strlen(data->saved_path) + strlen(path) + strlen(data->path) + 6);
983 if (!newpath)
984 goto nomem;
985
986 sprintf(newpath, "%s/../%s/%s", data->saved_path, path, data->path);
987 } else {
988 newpath = malloc(strlen(data->saved_path) + strlen(path) + 5);
989 if (!newpath)
990 goto nomem;
991
992 sprintf(newpath, "%s/../%s", data->saved_path, path);
993 }
994 }
995 free(data->saved_path);
996 data->saved_path = newpath;
997
998 if (nfs_normalize_path(nfs, data->saved_path) != 0) {
999 data->cb(-ENOENT, nfs, "Symbolic link resolves to invalid path", data->private_data);
1000 free_nfs_cb_data(data);
1001 return;
1002 }
1003
1004 data->path = data->saved_path;
1005 nfs_lookup_path_async_internal(nfs, NULL, data, &nfs->rootfh);
1006 return;
1007
1008 nomem:
1009 data->cb(-ENOMEM, nfs, "Failed to allocate memory for path", data->private_data);
1010 free_nfs_cb_data(data);
1011 }
1012
1013 static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1014 {
1015 struct nfs_cb_data *data = private_data;
1016 struct nfs_context *nfs = data->nfs;
1017 LOOKUP3res *res;
1018 fattr3 *attr;
1019
1020 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1021
1022 if (status == RPC_STATUS_ERROR) {
1023 data->cb(-EFAULT, nfs, command_data, data->private_data);
1024 free_nfs_cb_data(data);
1025 return;
1026 }
1027 if (status == RPC_STATUS_CANCEL) {
1028 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1029 free_nfs_cb_data(data);
1030 return;
1031 }
1032
1033 res = command_data;
1034 if (res->status != NFS3_OK) {
1035 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));
1036 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1037 free_nfs_cb_data(data);
1038 return;
1039 }
1040
1041 attr = res->LOOKUP3res_u.resok.obj_attributes.attributes_follow ?
1042 &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes :
1043 NULL;
1044
1045 /* This function will always invoke the callback and cleanup
1046 * for failures. So no need to check the return value.
1047 */
1048 nfs_lookup_path_async_internal(nfs, attr, data, &res->LOOKUP3res_u.resok.object);
1049 }
1050
1051 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, fattr3 *attr, struct nfs_cb_data *data, struct nfs_fh3 *fh)
1052 {
1053 char *path, *slash;
1054 LOOKUP3args args;
1055
1056 while (*data->path == '/') {
1057 data->path++;
1058 }
1059
1060 path = data->path;
1061 slash = strchr(path, '/');
1062
1063 if (attr && attr->type == NF3LNK && (!data->no_follow || *path != '\0')) {
1064 READLINK3args args;
1065
1066 if (data->link_count++ >= MAX_LINK_COUNT) {
1067 data->cb(-ELOOP, nfs, "Too many levels of symbolic links", data->private_data);
1068 free_nfs_cb_data(data);
1069 return -1;
1070 }
1071
1072 args.symlink = *fh;
1073
1074 if (rpc_nfs3_readlink_async(nfs->rpc, nfs_lookup_path_2_cb, &args, data) != 0) {
1075 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
1076 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1077 free_nfs_cb_data(data);
1078 return -1;
1079 }
1080
1081 if (slash != NULL) {
1082 *slash = '/';
1083 }
1084 return 0;
1085 }
1086
1087 if (slash != NULL) {
1088 /* Clear slash so that path is a zero terminated string for
1089 * the current path component. Set it back to '/' again later
1090 * when we are finished referencing this component so that
1091 * data->saved_path will still point to the full
1092 * normalized path.
1093 */
1094 *slash = 0;
1095 data->path = slash+1;
1096 } else {
1097 while (*data->path != 0) {
1098 data->path++;
1099 }
1100 }
1101
1102 if (*path == 0) {
1103 data->fh.data.data_len = fh->data.data_len;
1104 data->fh.data.data_val = malloc(data->fh.data.data_len);
1105 if (data->fh.data.data_val == NULL) {
1106 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
1107 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1108 free_nfs_cb_data(data);
1109 return -1;
1110 }
1111 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
1112 if (slash != NULL) {
1113 *slash = '/';
1114 }
1115 data->continue_cb(nfs, attr, data);
1116 return 0;
1117 }
1118
1119 memset(&args, 0, sizeof(LOOKUP3args));
1120 args.what.dir = *fh;
1121 args.what.name = path;
1122
1123 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, &args, data) != 0) {
1124 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
1125 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1126 free_nfs_cb_data(data);
1127 return -1;
1128 }
1129 if (slash != NULL) {
1130 *slash = '/';
1131 }
1132 return 0;
1133 }
1134
1135 static int nfs_normalize_path(struct nfs_context *nfs, char *path)
1136 {
1137 char *str;
1138 int len;
1139
1140 /* // -> / */
1141 while ((str = strstr(path, "//"))) {
1142 while(*str) {
1143 *str = *(str + 1);
1144 str++;
1145 }
1146 }
1147
1148 /* /./ -> / */
1149 while ((str = strstr(path, "/./"))) {
1150 while(*(str + 1)) {
1151 *str = *(str + 2);
1152 str++;
1153 }
1154 }
1155
1156 /* ^/../ -> error */
1157 if (!strncmp(path, "/../", 4)) {
1158 rpc_set_error(nfs->rpc,
1159 "Absolute path starts with '/../' "
1160 "during normalization");
1161 return -1;
1162 }
1163
1164 /* ^[^/] -> error */
1165 if (path[0] != '/') {
1166 rpc_set_error(nfs->rpc,
1167 "Absolute path does not start with '/'");
1168 return -1;
1169 }
1170
1171 /* /string/../ -> / */
1172 while ((str = strstr(path, "/../"))) {
1173 char *tmp;
1174
1175 if (!strncmp(path, "/../", 4)) {
1176 rpc_set_error(nfs->rpc,
1177 "Absolute path starts with '/../' "
1178 "during normalization");
1179 return -1;
1180 }
1181
1182 tmp = str - 1;
1183 while (*tmp != '/') {
1184 tmp--;
1185 }
1186 str += 3;
1187 while((*(tmp++) = *(str++)) != '\0')
1188 ;
1189 }
1190
1191 /* /$ -> \0 */
1192 len = strlen(path);
1193 if (len > 1) {
1194 if (path[len - 1] == '/') {
1195 path[len - 1] = '\0';
1196 len--;
1197 }
1198 }
1199 if (path[0] == '\0') {
1200 rpc_set_error(nfs->rpc,
1201 "Absolute path became '' "
1202 "during normalization");
1203 return -1;
1204 }
1205
1206 /* /.$ -> \0 */
1207 if (len >= 2) {
1208 if (!strcmp(&path[len - 2], "/.")) {
1209 path[len - 2] = '\0';
1210 len -= 2;
1211 }
1212 }
1213
1214 /* ^/..$ -> error */
1215 if (!strcmp(path, "/..")) {
1216 rpc_set_error(nfs->rpc,
1217 "Absolute path is '/..' "
1218 "during normalization");
1219 return -1;
1220 }
1221
1222 /* /string/..$ -> / */
1223 if (len >= 3) {
1224 if (!strcmp(&path[len - 3], "/..")) {
1225 char *tmp = &path[len - 3];
1226 while (*--tmp != '/')
1227 ;
1228 *tmp = '\0';
1229 }
1230 }
1231
1232 return 0;
1233 }
1234
1235 static void nfs_lookup_path_getattr_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1236 {
1237 struct nfs_cb_data *data = private_data;
1238 struct nfs_context *nfs = data->nfs;
1239 GETATTR3res *res;
1240 fattr3 *attr;
1241
1242 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1243
1244 if (status == RPC_STATUS_ERROR) {
1245 data->cb(-EFAULT, nfs, command_data, data->private_data);
1246 free_nfs_cb_data(data);
1247 return;
1248 }
1249 if (status == RPC_STATUS_CANCEL) {
1250 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1251 free_nfs_cb_data(data);
1252 return;
1253 }
1254
1255 res = command_data;
1256 if (res->status != NFS3_OK) {
1257 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));
1258 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1259 free_nfs_cb_data(data);
1260 return;
1261 }
1262
1263 attr = &res->GETATTR3res_u.resok.obj_attributes;
1264 /* This function will always invoke the callback and cleanup
1265 * for failures. So no need to check the return value.
1266 */
1267 nfs_lookup_path_async_internal(nfs, attr, data, &nfs->rootfh);
1268 }
1269
1270 static int nfs_lookuppath_async(struct nfs_context *nfs, const char *path, int no_follow, nfs_cb cb, void *private_data, continue_func continue_cb, void *continue_data, void (*free_continue_data)(void *), int continue_int)
1271 {
1272 struct nfs_cb_data *data;
1273 struct GETATTR3args args;
1274
1275 if (path[0] == '\0') {
1276 path = ".";
1277 }
1278
1279 data = malloc(sizeof(struct nfs_cb_data));
1280 if (data == NULL) {
1281 rpc_set_error(nfs->rpc, "out of memory: failed to allocate "
1282 "nfs_cb_data structure");
1283 if (free_continue_data)
1284 free_continue_data(continue_data);
1285 return -1;
1286 }
1287 memset(data, 0, sizeof(struct nfs_cb_data));
1288 data->nfs = nfs;
1289 data->cb = cb;
1290 data->continue_cb = continue_cb;
1291 data->continue_data = continue_data;
1292 data->free_continue_data = free_continue_data;
1293 data->continue_int = continue_int;
1294 data->private_data = private_data;
1295 data->no_follow = no_follow;
1296 if (path[0] == '/') {
1297 data->saved_path = strdup(path);
1298 } else {
1299 data->saved_path = malloc(strlen(path) + strlen(nfs->cwd) + 2);
1300 if (data->saved_path == NULL) {
1301 rpc_set_error(nfs->rpc, "out of memory: failed to "
1302 "malloc path string");
1303 free_nfs_cb_data(data);
1304 return -1;
1305 }
1306 sprintf(data->saved_path, "%s/%s", nfs->cwd, path);
1307 }
1308
1309 if (data->saved_path == NULL) {
1310 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
1311 free_nfs_cb_data(data);
1312 return -1;
1313 }
1314 if (nfs_normalize_path(nfs, data->saved_path) != 0) {
1315 free_nfs_cb_data(data);
1316 return -1;
1317 }
1318
1319 data->path = data->saved_path;
1320 if (data->path[0]) {
1321 /* This function will always invoke the callback and cleanup
1322 * for failures. So no need to check the return value.
1323 */
1324 nfs_lookup_path_async_internal(nfs, NULL, data, &nfs->rootfh);
1325 return 0;
1326 }
1327
1328 /* We have a request for "", so just perform a GETATTR3 so we can
1329 * return the attributes to the caller.
1330 */
1331 memset(&args, 0, sizeof(GETATTR3args));
1332 args.object = nfs->rootfh;
1333 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_lookup_path_getattr_cb, &args, data) != 0) {
1334 free_nfs_cb_data(data);
1335 return -1;
1336 }
1337 return 0;
1338 }
1339
1340
1341 /*
1342 * Async stat()
1343 */
1344 static dev_t specdata3_to_rdev(struct specdata3 *rdev)
1345 {
1346 #ifdef makedev
1347 return makedev(rdev->specdata1, rdev->specdata2);
1348 #else
1349 return 0;
1350 #endif
1351 }
1352
1353 static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1354 {
1355 GETATTR3res *res;
1356 struct nfs_cb_data *data = private_data;
1357 struct nfs_context *nfs = data->nfs;
1358 #ifdef WIN32
1359 struct __stat64 st;
1360 #else
1361 struct stat st;
1362 #endif
1363
1364 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1365
1366 if (status == RPC_STATUS_ERROR) {
1367 data->cb(-EFAULT, nfs, command_data, data->private_data);
1368 free_nfs_cb_data(data);
1369 return;
1370 }
1371 if (status == RPC_STATUS_CANCEL) {
1372 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1373 free_nfs_cb_data(data);
1374 return;
1375 }
1376
1377 res = command_data;
1378 if (res->status != NFS3_OK) {
1379 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));
1380 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1381 free_nfs_cb_data(data);
1382 return;
1383 }
1384
1385 st.st_dev = res->GETATTR3res_u.resok.obj_attributes.fsid;
1386 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1387 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
1388 switch (res->GETATTR3res_u.resok.obj_attributes.type) {
1389 case NF3REG:
1390 st.st_mode |= S_IFREG;
1391 break;
1392 case NF3DIR:
1393 st.st_mode |= S_IFDIR;
1394 break;
1395 case NF3BLK:
1396 st.st_mode |= S_IFBLK;
1397 break;
1398 case NF3CHR:
1399 st.st_mode |= S_IFCHR;
1400 break;
1401 case NF3LNK:
1402 st.st_mode |= S_IFLNK;
1403 break;
1404 case NF3SOCK:
1405 st.st_mode |= S_IFSOCK;
1406 break;
1407 case NF3FIFO:
1408 st.st_mode |= S_IFIFO;
1409 break;
1410 }
1411 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1412 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1413 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1414 st.st_rdev = specdata3_to_rdev(&res->GETATTR3res_u.resok.obj_attributes.rdev);
1415 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
1416 #ifndef WIN32
1417 st.st_blksize = NFS_BLKSIZE;
1418 st.st_blocks = (res->GETATTR3res_u.resok.obj_attributes.used + 512 - 1) / 512;
1419 #endif//WIN32
1420 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1421 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1422 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1423 #ifdef HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC
1424 st.st_atim.tv_nsec = res->GETATTR3res_u.resok.obj_attributes.atime.nseconds;
1425 st.st_mtim.tv_nsec = res->GETATTR3res_u.resok.obj_attributes.mtime.nseconds;
1426 st.st_ctim.tv_nsec = res->GETATTR3res_u.resok.obj_attributes.ctime.nseconds;
1427 #endif
1428
1429 data->cb(0, nfs, &st, data->private_data);
1430 free_nfs_cb_data(data);
1431 }
1432
1433 static int nfs_stat_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
1434 {
1435 struct GETATTR3args args;
1436
1437 memset(&args, 0, sizeof(GETATTR3args));
1438 args.object = data->fh;
1439
1440 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
1441 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1442 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1443 free_nfs_cb_data(data);
1444 return -1;
1445 }
1446 return 0;
1447 }
1448
1449 int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1450 {
1451 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
1452 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1453 return -1;
1454 }
1455
1456 return 0;
1457 }
1458
1459
1460 /*
1461 * Async nfs_stat64()
1462 */
1463 static void nfs_stat64_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1464 {
1465 GETATTR3res *res;
1466 struct nfs_cb_data *data = private_data;
1467 struct nfs_context *nfs = data->nfs;
1468 struct nfs_stat_64 st;
1469
1470 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1471
1472 if (status == RPC_STATUS_ERROR) {
1473 data->cb(-EFAULT, nfs, command_data, data->private_data);
1474 free_nfs_cb_data(data);
1475 return;
1476 }
1477 if (status == RPC_STATUS_CANCEL) {
1478 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1479 free_nfs_cb_data(data);
1480 return;
1481 }
1482
1483 res = command_data;
1484 if (res->status != NFS3_OK) {
1485 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));
1486 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1487 free_nfs_cb_data(data);
1488 return;
1489 }
1490
1491 st.nfs_dev = res->GETATTR3res_u.resok.obj_attributes.fsid;
1492 st.nfs_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1493 st.nfs_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
1494 switch (res->GETATTR3res_u.resok.obj_attributes.type) {
1495 case NF3REG:
1496 st.nfs_mode |= S_IFREG;
1497 break;
1498 case NF3DIR:
1499 st.nfs_mode |= S_IFDIR;
1500 break;
1501 case NF3BLK:
1502 st.nfs_mode |= S_IFBLK;
1503 break;
1504 case NF3CHR:
1505 st.nfs_mode |= S_IFCHR;
1506 break;
1507 case NF3LNK:
1508 st.nfs_mode |= S_IFLNK;
1509 break;
1510 case NF3SOCK:
1511 st.nfs_mode |= S_IFSOCK;
1512 break;
1513 case NF3FIFO:
1514 st.nfs_mode |= S_IFIFO;
1515 break;
1516 }
1517 st.nfs_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1518 st.nfs_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1519 st.nfs_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1520 st.nfs_rdev = specdata3_to_rdev(&res->GETATTR3res_u.resok.obj_attributes.rdev);
1521 st.nfs_size = res->GETATTR3res_u.resok.obj_attributes.size;
1522 st.nfs_blksize = NFS_BLKSIZE;
1523 st.nfs_blocks = (res->GETATTR3res_u.resok.obj_attributes.used + 512 - 1) / 512;
1524 st.nfs_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1525 st.nfs_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1526 st.nfs_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1527 st.nfs_atime_nsec = res->GETATTR3res_u.resok.obj_attributes.atime.nseconds;
1528 st.nfs_mtime_nsec = res->GETATTR3res_u.resok.obj_attributes.mtime.nseconds;
1529 st.nfs_ctime_nsec = res->GETATTR3res_u.resok.obj_attributes.ctime.nseconds;
1530 st.nfs_used = res->GETATTR3res_u.resok.obj_attributes.used;
1531
1532 data->cb(0, nfs, &st, data->private_data);
1533 free_nfs_cb_data(data);
1534 }
1535
1536 static int nfs_stat64_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
1537 {
1538 struct GETATTR3args args;
1539
1540 memset(&args, 0, sizeof(GETATTR3args));
1541 args.object = data->fh;
1542
1543 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat64_1_cb, &args, data) != 0) {
1544 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1545 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1546 free_nfs_cb_data(data);
1547 return -1;
1548 }
1549 return 0;
1550 }
1551
1552 int nfs_stat64_async_internal(struct nfs_context *nfs, const char *path, int no_follow, nfs_cb cb, void *private_data)
1553 {
1554 if (nfs_lookuppath_async(nfs, path, no_follow, cb, private_data, nfs_stat64_continue_internal, NULL, NULL, 0) != 0) {
1555 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1556 return -1;
1557 }
1558
1559 return 0;
1560 }
1561
1562 int nfs_stat64_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1563 {
1564 return nfs_stat64_async_internal(nfs, path, 0, cb, private_data);
1565 }
1566
1567 int nfs_lstat64_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1568 {
1569 return nfs_stat64_async_internal(nfs, path, 1, cb, private_data);
1570 }
1571
1572 /*
1573 * Async open()
1574 */
1575 static void nfs_open_trunc_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1576 {
1577 struct nfs_cb_data *data = private_data;
1578 struct nfs_context *nfs = data->nfs;
1579 struct nfsfh *nfsfh;
1580 SETATTR3res *res;
1581
1582 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1583
1584 if (status == RPC_STATUS_ERROR) {
1585 data->cb(-EFAULT, nfs, command_data, data->private_data);
1586 free_nfs_cb_data(data);
1587 return;
1588 }
1589 if (status == RPC_STATUS_CANCEL) {
1590 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1591 free_nfs_cb_data(data);
1592 return;
1593 }
1594
1595 res = command_data;
1596 if (res->status != NFS3_OK) {
1597 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1598 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1599 free_nfs_cb_data(data);
1600 return;
1601 }
1602
1603 nfsfh = malloc(sizeof(struct nfsfh));
1604 if (nfsfh == NULL) {
1605 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1606 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1607 free_nfs_cb_data(data);
1608 return;
1609 }
1610 memset(nfsfh, 0, sizeof(struct nfsfh));
1611
1612 if (data->continue_int & O_SYNC) {
1613 nfsfh->is_sync = 1;
1614 }
1615 if (data->continue_int & O_APPEND) {
1616 nfsfh->is_append = 1;
1617 }
1618
1619 /* steal the filehandle */
1620 nfsfh->fh = data->fh;
1621 data->fh.data.data_val = NULL;
1622
1623 data->cb(0, nfs, nfsfh, data->private_data);
1624 free_nfs_cb_data(data);
1625 }
1626
1627 static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1628 {
1629 ACCESS3res *res;
1630 struct nfs_cb_data *data = private_data;
1631 struct nfs_context *nfs = data->nfs;
1632 struct nfsfh *nfsfh;
1633 unsigned int nfsmode = 0;
1634
1635 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1636
1637 if (status == RPC_STATUS_ERROR) {
1638 data->cb(-EFAULT, nfs, command_data, data->private_data);
1639 free_nfs_cb_data(data);
1640 return;
1641 }
1642 if (status == RPC_STATUS_CANCEL) {
1643 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1644 free_nfs_cb_data(data);
1645 return;
1646 }
1647
1648 res = command_data;
1649 if (res->status != NFS3_OK) {
1650 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));
1651 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1652 free_nfs_cb_data(data);
1653 return;
1654 }
1655
1656 if (data->continue_int & O_WRONLY) {
1657 nfsmode |= ACCESS3_MODIFY;
1658 }
1659 if (data->continue_int & O_RDWR) {
1660 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1661 }
1662 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1663 nfsmode |= ACCESS3_READ;
1664 }
1665
1666
1667 if (res->ACCESS3res_u.resok.access != nfsmode) {
1668 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
1669 nfsmode&ACCESS3_READ?'r':'-',
1670 nfsmode&ACCESS3_MODIFY?'w':'-',
1671 nfsmode&ACCESS3_EXECUTE?'x':'-',
1672 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
1673 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
1674 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
1675 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
1676 free_nfs_cb_data(data);
1677 return;
1678 }
1679
1680 /* Try to truncate it if we were requested to */
1681 if ((data->continue_int & O_TRUNC) &&
1682 (data->continue_int & (O_RDWR|O_WRONLY))) {
1683 SETATTR3args args;
1684
1685 memset(&args, 0, sizeof(SETATTR3args));
1686 args.object = data->fh;
1687 args.new_attributes.size.set_it = 1;
1688 args.new_attributes.size.set_size3_u.size = 0;
1689
1690 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_open_trunc_cb, &args,
1691 data) != 0) {
1692 rpc_set_error(nfs->rpc, "RPC error: Failed to send "
1693 "SETATTR call for %s", data->path);
1694 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
1695 data->private_data);
1696 free_nfs_cb_data(data);
1697 return;
1698 }
1699 return;
1700 }
1701
1702 nfsfh = malloc(sizeof(struct nfsfh));
1703 if (nfsfh == NULL) {
1704 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1705 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1706 free_nfs_cb_data(data);
1707 return;
1708 }
1709 memset(nfsfh, 0, sizeof(struct nfsfh));
1710
1711 if (data->continue_int & O_SYNC) {
1712 nfsfh->is_sync = 1;
1713 }
1714 if (data->continue_int & O_APPEND) {
1715 nfsfh->is_append = 1;
1716 }
1717
1718 /* steal the filehandle */
1719 nfsfh->fh = data->fh;
1720 data->fh.data.data_val = NULL;
1721
1722 data->cb(0, nfs, nfsfh, data->private_data);
1723 free_nfs_cb_data(data);
1724 }
1725
1726 static int nfs_open_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
1727 {
1728 int nfsmode = 0;
1729 ACCESS3args args;
1730
1731 if (data->continue_int & O_WRONLY) {
1732 nfsmode |= ACCESS3_MODIFY;
1733 }
1734 if (data->continue_int & O_RDWR) {
1735 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1736 }
1737 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1738 nfsmode |= ACCESS3_READ;
1739 }
1740
1741 memset(&args, 0, sizeof(ACCESS3args));
1742 args.object = data->fh;
1743 args.access = nfsmode;
1744
1745 if (rpc_nfs3_access_async(nfs->rpc, nfs_open_cb, &args, data) != 0) {
1746 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS "
1747 "call for %s", data->path);
1748 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
1749 data->private_data);
1750 free_nfs_cb_data(data);
1751 return -1;
1752 }
1753 return 0;
1754 }
1755
1756 int nfs_open_async(struct nfs_context *nfs, const char *path, int flags, nfs_cb cb, void *private_data)
1757 {
1758 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_open_continue_internal, NULL, NULL, flags) != 0) {
1759 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1760 return -1;
1761 }
1762
1763 return 0;
1764 }
1765
1766
1767 /*
1768 * Async chdir()
1769 */
1770 static int nfs_chdir_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
1771 {
1772 /* steal saved_path */
1773 free(nfs->cwd);
1774 nfs->cwd = data->saved_path;
1775 data->saved_path = NULL;
1776
1777 data->cb(0, nfs, NULL, data->private_data);
1778 free_nfs_cb_data(data);
1779
1780 return 0;
1781 }
1782
1783 int nfs_chdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1784 {
1785 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_chdir_continue_internal, NULL, NULL, 0) != 0) {
1786 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1787 return -1;
1788 }
1789
1790 return 0;
1791 }
1792
1793
1794 /*
1795 * Async pread()
1796 */
1797 static void nfs_fill_READ3args(READ3args *args, struct nfsfh *fh, uint64_t offset, uint64_t count)
1798 {
1799 memset(args, 0, sizeof(READ3args));
1800 args->file = fh->fh;
1801 args->offset = offset;
1802 args->count = count;
1803 }
1804
1805 static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1806 {
1807 struct nfs_mcb_data *mdata = private_data;
1808 struct nfs_cb_data *data = mdata->data;
1809 struct nfs_context *nfs = data->nfs;
1810 READ3res *res;
1811
1812 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1813
1814 data->num_calls--;
1815
1816 if (status == RPC_STATUS_ERROR) {
1817 /* flag the failure but do not invoke callback until we have received all responses */
1818 data->error = 1;
1819 }
1820 if (status == RPC_STATUS_CANCEL) {
1821 /* flag the cancellation but do not invoke callback until we have received all responses */
1822 data->cancel = 1;
1823 }
1824
1825 if (status == RPC_STATUS_SUCCESS) {
1826 res = command_data;
1827 if (res->status != NFS3_OK) {
1828 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1829 data->error = 1;
1830 } else {
1831 uint64_t count = res->READ3res_u.resok.count;
1832
1833 if (mdata->update_pos)
1834 data->nfsfh->offset += count;
1835
1836 /* if we have more than one call or we have received a short read we need a reassembly buffer */
1837 if (data->num_calls || (count < mdata->count && !res->READ3res_u.resok.eof)) {
1838 if (data->buffer == NULL) {
1839 data->buffer = malloc(data->count);
1840 if (data->buffer == NULL) {
1841 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)data->count);
1842 data->oom = 1;
1843 }
1844 }
1845 }
1846 if (count > 0) {
1847 if (count <= mdata->count) {
1848 /* copy data into reassembly buffer if we have one */
1849 if (data->buffer != NULL) {
1850 memcpy(&data->buffer[mdata->offset - data->offset], res->READ3res_u.resok.data.data_val, count);
1851 }
1852 if (data->max_offset < mdata->offset + count) {
1853 data->max_offset = mdata->offset + count;
1854 }
1855 } else {
1856 rpc_set_error(nfs->rpc, "NFS: Read overflow. Server has sent more data than requested!");
1857 data->error = 1;
1858 }
1859 }
1860 /* check if we have received a short read */
1861 if (count < mdata->count && !res->READ3res_u.resok.eof) {
1862 if (count == 0) {
1863 rpc_set_error(nfs->rpc, "NFS: Read failed. No bytes read and not at EOF!");
1864 data->error = 1;
1865 } else {
1866 /* reissue reminder of this read request */
1867 READ3args args;
1868 mdata->offset += count;
1869 mdata->count -= count;
1870 nfs_fill_READ3args(&args, data->nfsfh, mdata->offset, mdata->count);
1871 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_mcb, &args, mdata) == 0) {
1872 data->num_calls++;
1873 return;
1874 } else {
1875 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1876 data->oom = 1;
1877 }
1878 }
1879 }
1880 }
1881 }
1882
1883 free(mdata);
1884
1885 if (data->num_calls > 0) {
1886 /* still waiting for more replies */
1887 return;
1888 }
1889 if (data->oom != 0) {
1890 data->cb(-ENOMEM, nfs, command_data, data->private_data);
1891 free_nfs_cb_data(data);
1892 return;
1893 }
1894 if (data->error != 0) {
1895 data->cb(-EFAULT, nfs, command_data, data->private_data);
1896 free_nfs_cb_data(data);
1897 return;
1898 }
1899 if (data->cancel != 0) {
1900 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1901 free_nfs_cb_data(data);
1902 return;
1903 }
1904
1905 if (data->buffer) {
1906 if (data->max_offset > data->org_offset + data->org_count) {
1907 data->max_offset = data->org_offset + data->org_count;
1908 }
1909 data->cb(data->max_offset - data->org_offset, nfs, data->buffer + (data->org_offset - data->offset), data->private_data);
1910 } else {
1911 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
1912 }
1913
1914 data->nfsfh->ra.fh_offset = data->max_offset;
1915 if (data->nfsfh->ra.cur_ra) {
1916 free(data->nfsfh->ra.buf);
1917 data->nfsfh->ra.buf = data->buffer;
1918 data->nfsfh->ra.buf_offset = data->offset;
1919 data->nfsfh->ra.buf_count = data->count;
1920 data->nfsfh->ra.buf_ts = time(NULL);
1921 data->buffer = NULL;
1922 }
1923 free_nfs_cb_data(data);
1924 }
1925
1926 static void nfs_ra_invalidate(struct nfsfh *nfsfh) {
1927 free(nfsfh->ra.buf);
1928 nfsfh->ra.buf = NULL;
1929 nfsfh->ra.buf_offset = 0;
1930 nfsfh->ra.buf_count = 0;
1931 nfsfh->ra.buf_ts = time(NULL);
1932 nfsfh->ra.cur_ra = NFS_BLKSIZE;
1933 }
1934
1935 static int nfs_pread_async_internal(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data, int update_pos)
1936 {
1937 struct nfs_cb_data *data;
1938
1939 data = malloc(sizeof(struct nfs_cb_data));
1940 if (data == NULL) {
1941 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1942 return -1;
1943 }
1944 memset(data, 0, sizeof(struct nfs_cb_data));
1945 data->nfs = nfs;
1946 data->cb = cb;
1947 data->private_data = private_data;
1948 data->nfsfh = nfsfh;
1949 data->org_offset = offset;
1950 data->org_count = count;
1951
1952 assert(data->num_calls == 0);
1953
1954 if (nfs->rpc->readahead && time(NULL) - nfsfh->ra.buf_ts > NFS_RA_TIMEOUT) {
1955 /* readahead cache timeout */
1956 nfs_ra_invalidate(nfsfh);
1957 }
1958
1959 if (nfs->rpc->readahead) {
1960 if (offset >= nfsfh->ra.last_offset &&
1961 offset - NFS_BLKSIZE <= nfsfh->ra.fh_offset + nfsfh->ra.cur_ra) {
1962 if (nfs->rpc->readahead > nfsfh->ra.cur_ra) {
1963 nfsfh->ra.cur_ra <<= 1;
1964 }
1965 } else {
1966 nfsfh->ra.cur_ra = NFS_BLKSIZE;
1967 }
1968
1969 nfsfh->ra.last_offset = offset;
1970
1971 if (nfsfh->ra.buf_offset <= offset &&
1972 nfsfh->ra.buf_offset + nfsfh->ra.buf_count >= offset + count) {
1973 /* serve request completely from cache */
1974 data->buffer = malloc(count);
1975 if (data->buffer == NULL) {
1976 free_nfs_cb_data(data);
1977 return -ENOMEM;
1978 }
1979 memcpy(data->buffer, nfsfh->ra.buf + (offset - nfsfh->ra.buf_offset), count);
1980 data->cb(count, nfs, data->buffer, data->private_data);
1981 nfsfh->ra.fh_offset = offset + count;
1982 free_nfs_cb_data(data);
1983 return 0;
1984 }
1985
1986 /* align start offset to blocksize */
1987 count += offset & (NFS_BLKSIZE - 1);
1988 offset &= ~(NFS_BLKSIZE - 1);
1989
1990 /* align end offset to blocksize and add readahead */
1991 count += nfsfh->ra.cur_ra - 1;
1992 count &= ~(NFS_BLKSIZE - 1);
1993
1994 data->buffer = malloc(count);
1995 if (data->buffer == NULL) {
1996 free_nfs_cb_data(data);
1997 return -ENOMEM;
1998 }
1999 data->offset = offset;
2000 data->count = count;
2001
2002 if (nfsfh->ra.buf_count && nfsfh->ra.buf_offset <= offset &&
2003 nfsfh->ra.buf_offset + nfsfh->ra.buf_count >= offset) {
2004 /* serve request partially from cache */
2005 size_t overlap = (nfsfh->ra.buf_offset + nfsfh->ra.buf_count) - offset;
2006 if (overlap > count) count = overlap;
2007 memcpy(data->buffer, nfsfh->ra.buf + (offset - nfsfh->ra.buf_offset), overlap);
2008 offset += overlap;
2009 count -= overlap;
2010 }
2011 } else {
2012 data->offset = offset;
2013 data->count = count;
2014 }
2015
2016 data->max_offset = offset;
2017
2018 /* chop requests into chunks of at most READMAX bytes if necessary.
2019 * we send all reads in parallel so that performance is still good.
2020 */
2021 do {
2022 uint64_t readcount = count;
2023 struct nfs_mcb_data *mdata;
2024 READ3args args;
2025
2026 if (readcount > nfs_get_readmax(nfs)) {
2027 readcount = nfs_get_readmax(nfs);
2028 }
2029
2030 mdata = malloc(sizeof(struct nfs_mcb_data));
2031 if (mdata == NULL) {
2032 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
2033 if (data->num_calls == 0) {
2034 free_nfs_cb_data(data);
2035 return -1;
2036 }
2037 data->oom = 1;
2038 break;
2039 }
2040 memset(mdata, 0, sizeof(struct nfs_mcb_data));
2041 mdata->data = data;
2042 mdata->offset = offset;
2043 mdata->count = readcount;
2044 mdata->update_pos = update_pos;
2045
2046 nfs_fill_READ3args(&args, nfsfh, offset, readcount);
2047
2048 if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_mcb, &args, mdata) != 0) {
2049 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
2050 free(mdata);
2051 if (data->num_calls == 0) {
2052 free_nfs_cb_data(data);
2053 return -1;
2054 }
2055 data->oom = 1;
2056 break;
2057 }
2058
2059 count -= readcount;
2060 offset += readcount;
2061 data->num_calls++;
2062 } while (count > 0);
2063
2064 return 0;
2065 }
2066
2067 int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
2068 {
2069 return nfs_pread_async_internal(nfs, nfsfh, offset, count, cb, private_data, 0);
2070 }
2071
2072 /*
2073 * Async read()
2074 */
2075 int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
2076 {
2077 return nfs_pread_async_internal(nfs, nfsfh, nfsfh->offset, count, cb, private_data, 1);
2078 }
2079
2080
2081
2082 /*
2083 * Async pwrite()
2084 */
2085 static void nfs_fill_WRITE3args (WRITE3args *args, struct nfsfh *fh, uint64_t offset, uint64_t count,
2086 void *buf)
2087 {
2088 memset(args, 0, sizeof(WRITE3args));
2089 args->file = fh->fh;
2090 args->offset = offset;
2091 args->count = count;
2092 args->stable = fh->is_sync ? FILE_SYNC : UNSTABLE;
2093 args->data.data_len = count;
2094 args->data.data_val = buf;
2095 }
2096
2097 static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2098 {
2099 struct nfs_mcb_data *mdata = private_data;
2100 struct nfs_cb_data *data = mdata->data;
2101 struct nfs_context *nfs = data->nfs;
2102 WRITE3res *res;
2103
2104 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2105
2106 data->num_calls--;
2107
2108 if (status == RPC_STATUS_ERROR) {
2109 /* flag the failure but do not invoke callback until we have received all responses */
2110 data->error = 1;
2111 }
2112 if (status == RPC_STATUS_CANCEL) {
2113 /* flag the cancellation but do not invoke callback until we have received all responses */
2114 data->cancel = 1;
2115 }
2116
2117 if (status == RPC_STATUS_SUCCESS) {
2118 res = command_data;
2119 if (res->status != NFS3_OK) {
2120 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2121 data->error = 1;
2122 } else {
2123 uint64_t count = res->WRITE3res_u.resok.count;
2124
2125 if (mdata->update_pos)
2126 data->nfsfh->offset += count;
2127
2128 if (count < mdata->count) {
2129 if (count == 0) {
2130 rpc_set_error(nfs->rpc, "NFS: Write failed. No bytes written!");
2131 data->error = 1;
2132 } else {
2133 /* reissue reminder of this write request */
2134 WRITE3args args;
2135 mdata->offset += count;
2136 mdata->count -= count;
2137
2138 nfs_fill_WRITE3args(&args, data->nfsfh, mdata->offset, mdata->count,
2139 &data->usrbuf[mdata->offset - data->offset]);
2140 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_mcb, &args, mdata) == 0) {
2141 data->num_calls++;
2142 return;
2143 } else {
2144 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
2145 data->oom = 1;
2146 }
2147 }
2148 }
2149 if (count > 0) {
2150 if (data->max_offset < mdata->offset + count) {
2151 data->max_offset = mdata->offset + count;
2152 }
2153 }
2154 }
2155 }
2156
2157 free(mdata);
2158
2159 if (data->num_calls > 0) {
2160 /* still waiting for more replies */
2161 return;
2162 }
2163 if (data->oom != 0) {
2164 data->cb(-ENOMEM, nfs, command_data, data->private_data);
2165 free_nfs_cb_data(data);
2166 return;
2167 }
2168 if (data->error != 0) {
2169 data->cb(-EFAULT, nfs, command_data, data->private_data);
2170 free_nfs_cb_data(data);
2171 return;
2172 }
2173 if (data->cancel != 0) {
2174 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2175 free_nfs_cb_data(data);
2176 return;
2177 }
2178
2179 data->cb(data->max_offset - data->offset, nfs, NULL, data->private_data);
2180
2181 free_nfs_cb_data(data);
2182 }
2183
2184
2185 static int nfs_pwrite_async_internal(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf, nfs_cb cb, void *private_data, int update_pos)
2186 {
2187 struct nfs_cb_data *data;
2188
2189 data = malloc(sizeof(struct nfs_cb_data));
2190 if (data == NULL) {
2191 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2192 return -1;
2193 }
2194 memset(data, 0, sizeof(struct nfs_cb_data));
2195 data->nfs = nfs;
2196 data->cb = cb;
2197 data->private_data = private_data;
2198 data->nfsfh = nfsfh;
2199 data->usrbuf = buf;
2200
2201 /* hello, clang-analyzer */
2202 assert(data->num_calls == 0);
2203
2204 /* chop requests into chunks of at most WRITEMAX bytes if necessary.
2205 * we send all writes in parallel so that performance is still good.
2206 */
2207 data->max_offset = offset;
2208 data->offset = offset;
2209
2210 do {
2211 uint64_t writecount = count;
2212 struct nfs_mcb_data *mdata;
2213 WRITE3args args;
2214
2215 if (writecount > nfs_get_writemax(nfs)) {
2216 writecount = nfs_get_writemax(nfs);
2217 }
2218
2219 mdata = malloc(sizeof(struct nfs_mcb_data));
2220 if (mdata == NULL) {
2221 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
2222 if (data->num_calls == 0) {
2223 free_nfs_cb_data(data);
2224 return -1;
2225 }
2226 data->oom = 1;
2227 break;
2228 }
2229 memset(mdata, 0, sizeof(struct nfs_mcb_data));
2230 mdata->data = data;
2231 mdata->offset = offset;
2232 mdata->count = writecount;
2233 mdata->update_pos = update_pos;
2234
2235 nfs_fill_WRITE3args(&args, nfsfh, offset, writecount, &buf[offset - data->offset]);
2236
2237 if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_mcb, &args, mdata) != 0) {
2238 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
2239 free(mdata);
2240 if (data->num_calls == 0) {
2241 free_nfs_cb_data(data);
2242 return -1;
2243 }
2244 data->oom = 1;
2245 break;
2246 }
2247
2248 count -= writecount;
2249 offset += writecount;
2250 data->num_calls++;
2251 } while (count > 0);
2252
2253 return 0;
2254 }
2255
2256 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)
2257 {
2258 return nfs_pwrite_async_internal(nfs, nfsfh, offset, count, buf, cb, private_data, 0);
2259 }
2260
2261 /*
2262 * Async write()
2263 */
2264 static void nfs_write_append_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2265 {
2266 struct nfs_cb_data *data = private_data;
2267 struct nfs_context *nfs = data->nfs;
2268 GETATTR3res *res;
2269
2270 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2271
2272 if (status == RPC_STATUS_ERROR) {
2273 data->cb(-EFAULT, nfs, command_data, data->private_data);
2274 free_nfs_cb_data(data);
2275 return;
2276 }
2277 if (status == RPC_STATUS_CANCEL) {
2278 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2279 free_nfs_cb_data(data);
2280 return;
2281 }
2282
2283 res = command_data;
2284 if (res->status != NFS3_OK) {
2285 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2286 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2287 free_nfs_cb_data(data);
2288 return;
2289 }
2290
2291 if (nfs_pwrite_async_internal(nfs, data->nfsfh, res->GETATTR3res_u.resok.obj_attributes.size, data->count, data->usrbuf, data->cb, data->private_data, 1) != 0) {
2292 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2293 free_nfs_cb_data(data);
2294 return;
2295 }
2296 free_nfs_cb_data(data);
2297 }
2298
2299 int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
2300 {
2301 nfs_ra_invalidate(nfsfh);
2302 if (nfsfh->is_append) {
2303 struct GETATTR3args args;
2304 struct nfs_cb_data *data;
2305
2306 data = malloc(sizeof(struct nfs_cb_data));
2307 if (data == NULL) {
2308 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2309 return -1;
2310 }
2311 memset(data, 0, sizeof(struct nfs_cb_data));
2312 data->nfs = nfs;
2313 data->cb = cb;
2314 data->private_data = private_data;
2315 data->nfsfh = nfsfh;
2316 data->usrbuf = buf;
2317 data->count = count;
2318
2319 memset(&args, 0, sizeof(GETATTR3args));
2320 args.object = nfsfh->fh;
2321
2322 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_write_append_cb, &args, data) != 0) {
2323 rpc_set_error(nfs->rpc, "out of memory: failed to send GETATTR");
2324 free_nfs_cb_data(data);
2325 return -1;
2326 }
2327 return 0;
2328 }
2329 return nfs_pwrite_async_internal(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data, 1);
2330 }
2331
2332
2333
2334
2335 /*
2336 * close
2337 */
2338
2339 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
2340 {
2341 free_nfsfh(nfsfh);
2342 cb(0, nfs, NULL, private_data);
2343 return 0;
2344 };
2345
2346
2347
2348
2349
2350 /*
2351 * Async fstat()
2352 */
2353 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
2354 {
2355 struct nfs_cb_data *data;
2356 struct GETATTR3args args;
2357
2358 data = malloc(sizeof(struct nfs_cb_data));
2359 if (data == NULL) {
2360 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2361 return -1;
2362 }
2363 memset(data, 0, sizeof(struct nfs_cb_data));
2364 data->nfs = nfs;
2365 data->cb = cb;
2366 data->private_data = private_data;
2367
2368 memset(&args, 0, sizeof(GETATTR3args));
2369 args.object = nfsfh->fh;
2370
2371 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
2372 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
2373 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2374 free_nfs_cb_data(data);
2375 return -1;
2376 }
2377 return 0;
2378 }
2379
2380 /*
2381 * Async fstat64()
2382 */
2383 int nfs_fstat64_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
2384 {
2385 struct nfs_cb_data *data;
2386 struct GETATTR3args args;
2387
2388 data = malloc(sizeof(struct nfs_cb_data));
2389 if (data == NULL) {
2390 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2391 return -1;
2392 }
2393 memset(data, 0, sizeof(struct nfs_cb_data));
2394 data->nfs = nfs;
2395 data->cb = cb;
2396 data->private_data = private_data;
2397
2398 memset(&args, 0, sizeof(GETATTR3args));
2399 args.object = nfsfh->fh;
2400
2401 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat64_1_cb, &args, data) != 0) {
2402 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
2403 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2404 free_nfs_cb_data(data);
2405 return -1;
2406 }
2407 return 0;
2408 }
2409
2410
2411
2412 /*
2413 * Async fsync()
2414 */
2415 static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2416 {
2417 struct nfs_cb_data *data = private_data;
2418 struct nfs_context *nfs = data->nfs;
2419 COMMIT3res *res;
2420
2421 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2422
2423 if (status == RPC_STATUS_ERROR) {
2424 data->cb(-EFAULT, nfs, command_data, data->private_data);
2425 free_nfs_cb_data(data);
2426 return;
2427 }
2428 if (status == RPC_STATUS_CANCEL) {
2429 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2430 free_nfs_cb_data(data);
2431 return;
2432 }
2433
2434 res = command_data;
2435 if (res->status != NFS3_OK) {
2436 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2437 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2438 free_nfs_cb_data(data);
2439 return;
2440 }
2441
2442 data->cb(0, nfs, NULL, data->private_data);
2443 free_nfs_cb_data(data);
2444 }
2445
2446 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
2447 {
2448 struct nfs_cb_data *data;
2449 struct COMMIT3args args;
2450
2451 data = malloc(sizeof(struct nfs_cb_data));
2452 if (data == NULL) {
2453 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2454 return -1;
2455 }
2456 memset(data, 0, sizeof(struct nfs_cb_data));
2457 data->nfs = nfs;
2458 data->cb = cb;
2459 data->private_data = private_data;
2460
2461 args.file = nfsfh->fh;
2462 args.offset = 0;
2463 args.count = 0;
2464 if (rpc_nfs3_commit_async(nfs->rpc, nfs_fsync_cb, &args, data) != 0) {
2465 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
2466 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2467 free_nfs_cb_data(data);
2468 return -1;
2469 }
2470 return 0;
2471 }
2472
2473
2474
2475
2476 /*
2477 * Async ftruncate()
2478 */
2479 static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2480 {
2481 struct nfs_cb_data *data = private_data;
2482 struct nfs_context *nfs = data->nfs;
2483 SETATTR3res *res;
2484
2485 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2486
2487 if (status == RPC_STATUS_ERROR) {
2488 data->cb(-EFAULT, nfs, command_data, data->private_data);
2489 free_nfs_cb_data(data);
2490 return;
2491 }
2492 if (status == RPC_STATUS_CANCEL) {
2493 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2494 free_nfs_cb_data(data);
2495 return;
2496 }
2497
2498 res = command_data;
2499 if (res->status != NFS3_OK) {
2500 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2501 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2502 free_nfs_cb_data(data);
2503 return;
2504 }
2505
2506 data->cb(0, nfs, NULL, data->private_data);
2507 free_nfs_cb_data(data);
2508 }
2509
2510 int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
2511 {
2512 struct nfs_cb_data *data;
2513 SETATTR3args args;
2514
2515 data = malloc(sizeof(struct nfs_cb_data));
2516 if (data == NULL) {
2517 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
2518 return -1;
2519 }
2520 memset(data, 0, sizeof(struct nfs_cb_data));
2521 data->nfs = nfs;
2522 data->cb = cb;
2523 data->private_data = private_data;
2524
2525 memset(&args, 0, sizeof(SETATTR3args));
2526 args.object = nfsfh->fh;
2527 args.new_attributes.size.set_it = 1;
2528 args.new_attributes.size.set_size3_u.size = length;
2529
2530 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
2531 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2532 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2533 free_nfs_cb_data(data);
2534 return -1;
2535 }
2536 return 0;
2537 }
2538
2539
2540 /*
2541 * Async truncate()
2542 */
2543 static int nfs_truncate_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
2544 {
2545 uint64_t offset = data->continue_int;
2546 struct nfsfh nfsfh;
2547
2548 nfsfh.fh = data->fh;
2549
2550 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
2551 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2552 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2553 free_nfs_cb_data(data);
2554 return -1;
2555 }
2556 free_nfs_cb_data(data);
2557 return 0;
2558 }
2559
2560 int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
2561 {
2562 uint64_t offset;
2563
2564 offset = length;
2565
2566 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
2567 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2568 return -1;
2569 }
2570
2571 return 0;
2572 }
2573
2574
2575
2576
2577 /*
2578 * Async mkdir()
2579 */
2580 static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2581 {
2582 MKDIR3res *res;
2583 struct nfs_cb_data *data = private_data;
2584 struct nfs_context *nfs = data->nfs;
2585 char *str = data->continue_data;
2586
2587 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2588
2589 str = &str[strlen(str) + 1];
2590
2591 if (status == RPC_STATUS_ERROR) {
2592 data->cb(-EFAULT, nfs, command_data, data->private_data);
2593 free_nfs_cb_data(data);
2594 return;
2595 }
2596 if (status == RPC_STATUS_CANCEL) {
2597 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2598 free_nfs_cb_data(data);
2599 return;
2600 }
2601
2602 res = command_data;
2603 if (res->status != NFS3_OK) {
2604 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));
2605 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2606 free_nfs_cb_data(data);
2607 return;
2608 }
2609
2610 data->cb(0, nfs, NULL, data->private_data);
2611 free_nfs_cb_data(data);
2612 }
2613
2614 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
2615 {
2616 char *str = data->continue_data;
2617 MKDIR3args args;
2618
2619 str = &str[strlen(str) + 1];
2620
2621 memset(&args, 0, sizeof(MKDIR3args));
2622 args.where.dir = data->fh;
2623 args.where.name = str;
2624 args.attributes.mode.set_it = 1;
2625 args.attributes.mode.set_mode3_u.mode = 0755;
2626
2627 if (rpc_nfs3_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
2628 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
2629 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2630 free_nfs_cb_data(data);
2631 return -1;
2632 }
2633 return 0;
2634 }
2635
2636 int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2637 {
2638 char *new_path;
2639 char *ptr;
2640
2641 new_path = strdup(path);
2642 if (new_path == NULL) {
2643 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2644 return -1;
2645 }
2646
2647 ptr = strrchr(new_path, '/');
2648 if (ptr == NULL) {
2649 free(new_path);
2650 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2651 return -1;
2652 }
2653 *ptr = 0;
2654
2655 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2656 if (nfs_lookuppath_async(nfs, new_path, 0, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
2657 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
2658 return -1;
2659 }
2660
2661 return 0;
2662 }
2663
2664
2665
2666
2667
2668 /*
2669 * Async rmdir()
2670 */
2671 static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2672 {
2673 RMDIR3res *res;
2674 struct nfs_cb_data *data = private_data;
2675 struct nfs_context *nfs = data->nfs;
2676 char *str = data->continue_data;
2677
2678 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2679
2680 str = &str[strlen(str) + 1];
2681
2682 if (status == RPC_STATUS_ERROR) {
2683 data->cb(-EFAULT, nfs, command_data, data->private_data);
2684 free_nfs_cb_data(data);
2685 return;
2686 }
2687 if (status == RPC_STATUS_CANCEL) {
2688 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2689 free_nfs_cb_data(data);
2690 return;
2691 }
2692
2693 res = command_data;
2694 if (res->status != NFS3_OK) {
2695 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));
2696 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2697 free_nfs_cb_data(data);
2698 return;
2699 }
2700
2701 data->cb(0, nfs, NULL, data->private_data);
2702 free_nfs_cb_data(data);
2703 }
2704
2705 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
2706 {
2707 char *str = data->continue_data;
2708 RMDIR3args args;
2709
2710 str = &str[strlen(str) + 1];
2711
2712 args.object.dir = data->fh;
2713 args.object.name = str;
2714 if (rpc_nfs3_rmdir_async(nfs->rpc, nfs_rmdir_cb, &args, data) != 0) {
2715 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
2716 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2717 free_nfs_cb_data(data);
2718 return -1;
2719 }
2720 return 0;
2721 }
2722
2723 int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2724 {
2725 char *new_path;
2726 char *ptr;
2727
2728 new_path = strdup(path);
2729 if (new_path == NULL) {
2730 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2731 return -1;
2732 }
2733
2734 ptr = strrchr(new_path, '/');
2735 if (ptr == NULL) {
2736 free(new_path);
2737 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2738 return -1;
2739 }
2740 *ptr = 0;
2741
2742 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2743 if (nfs_lookuppath_async(nfs, new_path, 0, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
2744 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2745 return -1;
2746 }
2747
2748 return 0;
2749 }
2750
2751
2752
2753
2754 /*
2755 * Async creat()
2756 */
2757 struct create_cb_data {
2758 char *path;
2759 int flags;
2760 int mode;
2761 };
2762
2763 static void free_create_cb_data(void *ptr)
2764 {
2765 struct create_cb_data *data = ptr;
2766
2767 free(data->path);
2768 free(data);
2769 }
2770
2771 static void nfs_create_trunc_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2772 {
2773 struct nfs_cb_data *data = private_data;
2774 struct nfs_context *nfs = data->nfs;
2775 struct nfsfh *nfsfh = data->nfsfh;
2776 SETATTR3res *res;
2777
2778 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2779
2780 if (status == RPC_STATUS_ERROR) {
2781 data->cb(-EFAULT, nfs, command_data, data->private_data);
2782 free_nfs_cb_data(data);
2783 free_nfsfh(nfsfh);
2784 return;
2785 }
2786 if (status == RPC_STATUS_CANCEL) {
2787 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2788 free_nfs_cb_data(data);
2789 free_nfsfh(nfsfh);
2790 return;
2791 }
2792
2793 res = command_data;
2794 if (res->status != NFS3_OK) {
2795 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2796 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2797 free_nfs_cb_data(data);
2798 free_nfsfh(nfsfh);
2799 return;
2800 }
2801
2802 data->cb(0, nfs, nfsfh, data->private_data);
2803 free_nfs_cb_data(data);
2804 }
2805
2806 static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2807 {
2808 LOOKUP3res *res;
2809 struct nfs_cb_data *data = private_data;
2810 struct nfs_context *nfs = data->nfs;
2811 struct nfsfh *nfsfh;
2812 struct create_cb_data *cb_data = data->continue_data;
2813 char *str = cb_data->path;
2814
2815 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2816
2817 if (status == RPC_STATUS_ERROR) {
2818 data->cb(-EFAULT, nfs, command_data, data->private_data);
2819 free_nfs_cb_data(data);
2820 return;
2821 }
2822 if (status == RPC_STATUS_CANCEL) {
2823 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2824 free_nfs_cb_data(data);
2825 return;
2826 }
2827
2828 str = &str[strlen(str) + 1];
2829 res = command_data;
2830 if (res->status != NFS3_OK) {
2831 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));
2832 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2833
2834 return;
2835 }
2836
2837 nfsfh = malloc(sizeof(struct nfsfh));
2838 if (nfsfh == NULL) {
2839 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
2840 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2841 free_nfs_cb_data(data);
2842 return;
2843 }
2844 memset(nfsfh, 0, sizeof(struct nfsfh));
2845
2846 if (cb_data->flags & O_SYNC) {
2847 nfsfh->is_sync = 1;
2848 }
2849 if (cb_data->flags & O_APPEND) {
2850 nfsfh->is_append = 1;
2851 }
2852
2853 /* copy the filehandle */
2854 nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
2855 nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
2856 if (nfsfh->fh.data.data_val == NULL) {
2857 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh structure");
2858 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2859 free_nfs_cb_data(data);
2860 free(nfsfh);
2861 return;
2862 }
2863 memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
2864
2865 /* Try to truncate it if we were requested to */
2866 if (cb_data->flags & O_TRUNC) {
2867 SETATTR3args args;
2868
2869 data->nfsfh = nfsfh;
2870
2871 memset(&args, 0, sizeof(SETATTR3args));
2872 args.object = nfsfh->fh;
2873 args.new_attributes.size.set_it = 1;
2874 args.new_attributes.size.set_size3_u.size = 0;
2875
2876 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_create_trunc_cb,
2877 &args, data) != 0) {
2878 rpc_set_error(nfs->rpc, "RPC error: Failed to send "
2879 "SETATTR call for %s", data->path);
2880 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
2881 data->private_data);
2882 free_nfs_cb_data(data);
2883 free_nfsfh(nfsfh);
2884 return;
2885 }
2886 return;
2887 }
2888
2889 data->cb(0, nfs, nfsfh, data->private_data);
2890 free_nfs_cb_data(data);
2891 }
2892
2893
2894
2895 static void nfs_create_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2896 {
2897 CREATE3res *res;
2898 struct nfs_cb_data *data = private_data;
2899 struct nfs_context *nfs = data->nfs;
2900 struct create_cb_data *cb_data = data->continue_data;
2901 char *str = cb_data->path;
2902 LOOKUP3args args;
2903
2904 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2905
2906 if (status == RPC_STATUS_ERROR) {
2907 data->cb(-EFAULT, nfs, command_data, data->private_data);
2908 free_nfs_cb_data(data);
2909 return;
2910 }
2911 if (status == RPC_STATUS_CANCEL) {
2912 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2913 free_nfs_cb_data(data);
2914 return;
2915 }
2916
2917 str = &str[strlen(str) + 1];
2918 res = command_data;
2919 if (res->status != NFS3_OK) {
2920 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));
2921 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2922 free_nfs_cb_data(data);
2923 return;
2924 }
2925
2926 memset(&args, 0, sizeof(LOOKUP3args));
2927 args.what.dir = data->fh;
2928 args.what.name = str;
2929
2930 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_create_2_cb, &args, data) != 0) {
2931 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
2932 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2933 free_nfs_cb_data(data);
2934 return;
2935 }
2936 return;
2937 }
2938
2939 static int nfs_create_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
2940 {
2941 struct create_cb_data *cb_data = data->continue_data;
2942 char *str = cb_data->path;
2943 CREATE3args args;
2944
2945 str = &str[strlen(str) + 1];
2946
2947 memset(&args, 0, sizeof(CREATE3args));
2948 args.where.dir = data->fh;
2949 args.where.name = str;
2950 args.how.mode = (cb_data->flags & O_EXCL) ? GUARDED : UNCHECKED;
2951 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
2952 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = cb_data->mode;
2953
2954 if (rpc_nfs3_create_async(nfs->rpc, nfs_create_1_cb, &args, data) != 0) {
2955 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
2956 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2957 free_nfs_cb_data(data);
2958 return -1;
2959 }
2960 return 0;
2961 }
2962
2963 int nfs_create_async(struct nfs_context *nfs, const char *path, int flags, int mode, nfs_cb cb, void *private_data)
2964 {
2965 struct create_cb_data *cb_data;
2966 char *ptr;
2967
2968 cb_data = malloc(sizeof(struct create_cb_data));
2969 if (cb_data == NULL) {
2970 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
2971 return -1;
2972 }
2973
2974 cb_data->path = strdup(path);
2975 if (cb_data->path == NULL) {
2976 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2977 free(cb_data);
2978 return -1;
2979 }
2980
2981 ptr = strrchr(cb_data->path, '/');
2982 if (ptr == NULL) {
2983 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2984 free_create_cb_data(cb_data);
2985 return -1;
2986 }
2987 *ptr = 0;
2988
2989 cb_data->flags = flags;
2990 cb_data->mode = mode;
2991
2992 /* new_path now points to the parent directory, and beyond the nul terminator is the new directory to create */
2993 if (nfs_lookuppath_async(nfs, cb_data->path, 0, cb, private_data, nfs_create_continue_internal, cb_data, free_create_cb_data, 0) != 0) {
2994 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2995 return -1;
2996 }
2997
2998 return 0;
2999 }
3000
3001 int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3002 {
3003 return nfs_create_async(nfs, path, 0, mode, cb, private_data);
3004 }
3005
3006
3007
3008
3009 /*
3010 * Async unlink()
3011 */
3012 static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3013 {
3014 REMOVE3res *res;
3015 struct nfs_cb_data *data = private_data;
3016 struct nfs_context *nfs = data->nfs;
3017 char *str = data->continue_data;
3018
3019 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3020
3021 str = &str[strlen(str) + 1];
3022
3023 if (status == RPC_STATUS_ERROR) {
3024 data->cb(-EFAULT, nfs, command_data, data->private_data);
3025 free_nfs_cb_data(data);
3026 return;
3027 }
3028 if (status == RPC_STATUS_CANCEL) {
3029 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3030 free_nfs_cb_data(data);
3031 return;
3032 }
3033
3034 res = command_data;
3035 if (res->status != NFS3_OK) {
3036 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));
3037 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3038 free_nfs_cb_data(data);
3039 return;
3040 }
3041
3042 data->cb(0, nfs, NULL, data->private_data);
3043 free_nfs_cb_data(data);
3044 }
3045
3046 static int nfs_unlink_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
3047 {
3048 char *str = data->continue_data;
3049 struct REMOVE3args args;
3050
3051 str = &str[strlen(str) + 1];
3052
3053 args.object.dir = data->fh;
3054 args.object.name = str;
3055 if (rpc_nfs3_remove_async(nfs->rpc, nfs_unlink_cb, &args, data) != 0) {
3056 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
3057 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3058 free_nfs_cb_data(data);
3059 return -1;
3060 }
3061 return 0;
3062 }
3063
3064 int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
3065 {
3066 char *new_path;
3067 char *ptr;
3068
3069 new_path = strdup(path);
3070 if (new_path == NULL) {
3071 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
3072 return -1;
3073 }
3074
3075 ptr = strrchr(new_path, '/');
3076 if (ptr == NULL) {
3077 free(new_path);
3078 rpc_set_error(nfs->rpc, "Invalid path %s", path);
3079 return -1;
3080 }
3081 *ptr = 0;
3082
3083 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
3084 if (nfs_lookuppath_async(nfs, new_path, 0, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
3085 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3086 return -1;
3087 }
3088
3089 return 0;
3090 }
3091
3092
3093 /*
3094 * Async mknod()
3095 */
3096 struct mknod_cb_data {
3097 char *path;
3098 int mode;
3099 int major;
3100 int minor;
3101 };
3102
3103 static void free_mknod_cb_data(void *ptr)
3104 {
3105 struct mknod_cb_data *data = ptr;
3106
3107 free(data->path);
3108 free(data);
3109 }
3110
3111 static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3112 {
3113 MKNOD3res *res;
3114 struct nfs_cb_data *data = private_data;
3115 struct nfs_context *nfs = data->nfs;
3116 char *str = data->continue_data;
3117
3118 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3119
3120 str = &str[strlen(str) + 1];
3121
3122 if (status == RPC_STATUS_ERROR) {
3123 data->cb(-EFAULT, nfs, command_data, data->private_data);
3124 free_nfs_cb_data(data);
3125 return;
3126 }
3127 if (status == RPC_STATUS_CANCEL) {
3128 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3129 free_nfs_cb_data(data);
3130 return;
3131 }
3132
3133 res = command_data;
3134 if (res->status != NFS3_OK) {
3135 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));
3136 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3137 free_nfs_cb_data(data);
3138 return;
3139 }
3140
3141 data->cb(0, nfs, NULL, data->private_data);
3142 free_nfs_cb_data(data);
3143 }
3144
3145 static int nfs_mknod_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
3146 {
3147 struct mknod_cb_data *cb_data = data->continue_data;
3148 char *str = cb_data->path;
3149 MKNOD3args args;
3150
3151 str = &str[strlen(str) + 1];
3152
3153 args.where.dir = data->fh;
3154 args.where.name = str;
3155 switch (cb_data->mode & S_IFMT) {
3156 case S_IFCHR:
3157 args.what.type = NF3CHR;
3158 args.what.mknoddata3_u.chr_device.dev_attributes.mode.set_it = 1;
3159 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);
3160 args.what.mknoddata3_u.chr_device.spec.specdata1 = cb_data->major;
3161 args.what.mknoddata3_u.chr_device.spec.specdata2 = cb_data->minor;
3162 break;
3163 case S_IFBLK:
3164 args.what.type = NF3BLK;
3165 args.what.mknoddata3_u.blk_device.dev_attributes.mode.set_it = 1;
3166 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);
3167 args.what.mknoddata3_u.blk_device.spec.specdata1 = cb_data->major;
3168 args.what.mknoddata3_u.blk_device.spec.specdata2 = cb_data->minor;
3169 case S_IFSOCK:
3170 args.what.type = NF3SOCK;
3171 args.what.mknoddata3_u.sock_attributes.mode.set_it = 1;
3172 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);
3173 break;
3174 case S_IFIFO:
3175 args.what.type = NF3FIFO;
3176 args.what.mknoddata3_u.pipe_attributes.mode.set_it = 1;
3177 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);
3178 break;
3179 default:
3180 rpc_set_error(nfs->rpc, "Invalid file type for NFS3/MKNOD call");
3181 data->cb(-EINVAL, nfs, rpc_get_error(nfs->rpc), data->private_data);
3182 free_nfs_cb_data(data);
3183 return -1;
3184 }
3185
3186 if (rpc_nfs3_mknod_async(nfs->rpc, nfs_mknod_cb, &args, data) != 0) {
3187 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3188 free_nfs_cb_data(data);
3189 return -1;
3190 }
3191 return 0;
3192 }
3193
3194 int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
3195 {
3196 char *ptr;
3197 struct mknod_cb_data *cb_data;
3198
3199 cb_data = malloc(sizeof(struct mknod_cb_data));
3200 if (cb_data == NULL) {
3201 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
3202 return -1;
3203 }
3204
3205 cb_data->path = strdup(path);
3206 if (cb_data->path == NULL) {
3207 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
3208 free(cb_data);
3209 return -1;
3210 }
3211
3212 ptr = strrchr(cb_data->path, '/');
3213 if (ptr == NULL) {
3214 rpc_set_error(nfs->rpc, "Invalid path %s", path);
3215 free_mknod_cb_data(cb_data);
3216 return -1;
3217 }
3218 *ptr = 0;
3219
3220 cb_data->mode = mode;
3221 cb_data->major = major(dev);
3222 cb_data->minor = minor(dev);
3223
3224 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
3225 if (nfs_lookuppath_async(nfs, cb_data->path, 0, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
3226 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3227 return -1;
3228 }
3229
3230 return 0;
3231 }
3232
3233 /*
3234 * Async opendir()
3235 */
3236
3237 /* ReadDirPlus Emulation Callback data */
3238 struct rdpe_cb_data {
3239 int getattrcount;
3240 int status;
3241 struct nfs_cb_data *data;
3242 };
3243
3244 /* ReadDirPlus Emulation LOOKUP Callback data */
3245 struct rdpe_lookup_cb_data {
3246 struct rdpe_cb_data *rdpe_cb_data;
3247 struct nfsdirent *nfsdirent;
3248 };
3249
3250 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
3251 static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3252 {
3253 LOOKUP3res *res = command_data;
3254 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
3255 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
3256 struct nfs_cb_data *data = rdpe_cb_data->data;
3257 struct nfsdir *nfsdir = data->continue_data;
3258 struct nfs_context *nfs = data->nfs;
3259 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
3260
3261 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3262
3263 free(rdpe_lookup_cb_data);
3264
3265 rdpe_cb_data->getattrcount--;
3266
3267 if (status == RPC_STATUS_ERROR) {
3268 rpc_set_error(nfs->rpc, "LOOKUP during READDIRPLUS emulation "
3269 "failed with RPC_STATUS_ERROR");
3270 rdpe_cb_data->status = RPC_STATUS_ERROR;
3271 }
3272 if (status == RPC_STATUS_CANCEL) {
3273 rpc_set_error(nfs->rpc, "LOOKUP during READDIRPLUS emulation "
3274 "failed with RPC_STATUS_CANCEL");
3275 rdpe_cb_data->status = RPC_STATUS_CANCEL;
3276 }
3277 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
3278 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
3279 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
3280
3281 nfsdirent->type = attributes->type;
3282 nfsdirent->mode = attributes->mode;
3283 nfsdirent->size = attributes->size;
3284
3285 nfsdirent->atime.tv_sec = attributes->atime.seconds;
3286 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
3287 nfsdirent->atime_nsec = attributes->atime.nseconds;
3288 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
3289 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
3290 nfsdirent->mtime_nsec = attributes->mtime.nseconds;
3291 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
3292 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
3293 nfsdirent->ctime_nsec = attributes->ctime.nseconds;
3294 nfsdirent->uid = attributes->uid;
3295 nfsdirent->gid = attributes->gid;
3296 nfsdirent->nlink = attributes->nlink;
3297 nfsdirent->dev = attributes->fsid;
3298 nfsdirent->rdev = specdata3_to_rdev(&attributes->rdev);
3299 nfsdirent->blksize = NFS_BLKSIZE;
3300 nfsdirent->blocks = (attributes->used + 512 - 1) / 512;
3301 nfsdirent->used = attributes->used;
3302 }
3303 }
3304
3305 if (rdpe_cb_data->getattrcount == 0) {
3306 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
3307 rpc_set_error(nfs->rpc, "READDIRPLUS emulation "
3308 "failed: %s", rpc_get_error(rpc));
3309 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
3310 data->private_data);
3311 nfs_free_nfsdir(nfsdir);
3312 } else {
3313 data->cb(0, nfs, nfsdir, data->private_data);
3314 }
3315 free(rdpe_cb_data);
3316
3317 data->continue_data = NULL;
3318 free_nfs_cb_data(data);
3319 }
3320 }
3321
3322 static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3323 {
3324 READDIR3res *res = command_data;
3325 struct nfs_cb_data *data = private_data;
3326 struct nfs_context *nfs = data->nfs;
3327 struct nfsdir *nfsdir = data->continue_data;
3328 struct nfsdirent *nfsdirent;
3329 struct entry3 *entry;
3330 uint64_t cookie = 0;
3331 struct rdpe_cb_data *rdpe_cb_data;
3332
3333 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3334
3335 if (status == RPC_STATUS_ERROR) {
3336 data->cb(-EFAULT, nfs, command_data, data->private_data);
3337 nfs_free_nfsdir(nfsdir);
3338 data->continue_data = NULL;
3339 free_nfs_cb_data(data);
3340 return;
3341 }
3342
3343 if (status == RPC_STATUS_CANCEL) {
3344 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3345 nfs_free_nfsdir(nfsdir);
3346 data->continue_data = NULL;
3347 free_nfs_cb_data(data);
3348 return;
3349 }
3350
3351 if (res->status != NFS3_OK) {
3352 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));
3353 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3354 nfs_free_nfsdir(nfsdir);
3355 data->continue_data = NULL;
3356 free_nfs_cb_data(data);
3357 return;
3358 }
3359
3360 entry =res->READDIR3res_u.resok.reply.entries;
3361 while (entry != NULL) {
3362 nfsdirent = malloc(sizeof(struct nfsdirent));
3363 if (nfsdirent == NULL) {
3364 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
3365 nfs_free_nfsdir(nfsdir);
3366 data->continue_data = NULL;
3367 free_nfs_cb_data(data);
3368 return;
3369 }
3370 memset(nfsdirent, 0, sizeof(struct nfsdirent));
3371 nfsdirent->name = strdup(entry->name);
3372 if (nfsdirent->name == NULL) {
3373 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
3374 free(nfsdirent);
3375 nfs_free_nfsdir(nfsdir);
3376 data->continue_data = NULL;
3377 free_nfs_cb_data(data);
3378 return;
3379 }
3380 nfsdirent->inode = entry->fileid;
3381
3382 nfsdirent->next = nfsdir->entries;
3383 nfsdir->entries = nfsdirent;
3384
3385 cookie = entry->cookie;
3386 entry = entry->nextentry;
3387 }
3388
3389 if (res->READDIR3res_u.resok.reply.eof == 0) {
3390 READDIR3args args;
3391
3392 args.dir = data->fh;
3393 args.cookie = cookie;
3394 memcpy(&args.cookieverf, res->READDIR3res_u.resok.cookieverf, sizeof(cookieverf3));
3395 args.count = 8192;
3396
3397 if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
3398 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
3399 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3400 nfs_free_nfsdir(nfsdir);
3401 data->continue_data = NULL;
3402 free_nfs_cb_data(data);
3403 return;
3404 }
3405 return;
3406 }
3407
3408 if (res->READDIR3res_u.resok.dir_attributes.attributes_follow)
3409 nfsdir->attr = res->READDIR3res_u.resok.dir_attributes.post_op_attr_u.attributes;
3410
3411 /* steal the dirhandle */
3412 nfsdir->current = nfsdir->entries;
3413
3414 if (nfsdir->entries) {
3415 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
3416 rdpe_cb_data->getattrcount = 0;
3417 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
3418 rdpe_cb_data->data = data;
3419 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
3420 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
3421 LOOKUP3args args;
3422
3423 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
3424 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
3425 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
3426
3427 memset(&args, 0, sizeof(LOOKUP3args));
3428 args.what.dir = data->fh;
3429 args.what.name = nfsdirent->name;
3430
3431 if (rpc_nfs3_lookup_async(nfs->rpc, nfs_opendir3_cb, &args, rdpe_lookup_cb_data) != 0) {
3432 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
3433
3434 /* if we have already commands in flight, we cant just stop, we have to wait for the
3435 * commands in flight to complete
3436 */
3437 if (rdpe_cb_data->getattrcount > 0) {
3438 nfs_free_nfsdir(nfsdir);
3439 data->continue_data = NULL;
3440 free_nfs_cb_data(data);
3441 rdpe_cb_data->status = RPC_STATUS_ERROR;
3442 free(rdpe_lookup_cb_data);
3443 return;
3444 }
3445
3446 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3447 nfs_free_nfsdir(nfsdir);
3448 data->continue_data = NULL;
3449 free_nfs_cb_data(data);
3450 free(rdpe_lookup_cb_data);
3451 free(rdpe_cb_data);
3452 return;
3453 }
3454 rdpe_cb_data->getattrcount++;
3455 }
3456 }
3457 }
3458
3459 static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3460 {
3461 READDIRPLUS3res *res = command_data;
3462 struct nfs_cb_data *data = private_data;
3463 struct nfs_context *nfs = data->nfs;
3464 struct nfsdir *nfsdir = data->continue_data;
3465 struct entryplus3 *entry;
3466 uint64_t cookie = 0;
3467
3468 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3469
3470 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
3471 READDIR3args args;
3472
3473 args.dir = data->fh;
3474 args.cookie = cookie;
3475 memset(&args.cookieverf, 0, sizeof(cookieverf3));
3476 args.count = 8192;
3477
3478 if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
3479 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
3480 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3481 nfs_free_nfsdir(nfsdir);
3482 data->continue_data = NULL;
3483 free_nfs_cb_data(data);
3484 return;
3485 }
3486 return;
3487 }
3488
3489 if (status == RPC_STATUS_CANCEL) {
3490 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3491 nfs_free_nfsdir(nfsdir);
3492 data->continue_data = NULL;
3493 free_nfs_cb_data(data);
3494 return;
3495 }
3496
3497 if (res->status != NFS3_OK) {
3498 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));
3499 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3500 nfs_free_nfsdir(nfsdir);
3501 data->continue_data = NULL;
3502 free_nfs_cb_data(data);
3503 return;
3504 }
3505
3506 entry =res->READDIRPLUS3res_u.resok.reply.entries;
3507 while (entry != NULL) {
3508 struct nfsdirent *nfsdirent;
3509
3510 nfsdirent = malloc(sizeof(struct nfsdirent));
3511 if (nfsdirent == NULL) {
3512 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
3513 nfs_free_nfsdir(nfsdir);
3514 data->continue_data = NULL;
3515 free_nfs_cb_data(data);
3516 return;
3517 }
3518 memset(nfsdirent, 0, sizeof(struct nfsdirent));
3519 nfsdirent->name = strdup(entry->name);
3520 if (nfsdirent->name == NULL) {
3521 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
3522 free(nfsdirent);
3523 nfs_free_nfsdir(nfsdir);
3524 data->continue_data = NULL;
3525 free_nfs_cb_data(data);
3526 return;
3527 }
3528 nfsdirent->inode = entry->fileid;
3529 if (entry->name_attributes.attributes_follow) {
3530 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
3531 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
3532 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
3533
3534 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
3535 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
3536 nfsdirent->atime_nsec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds;
3537 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
3538 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
3539 nfsdirent->mtime_nsec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds;
3540 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
3541 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
3542 nfsdirent->ctime_nsec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds;
3543 nfsdirent->uid = entry->name_attributes.post_op_attr_u.attributes.uid;
3544 nfsdirent->gid = entry->name_attributes.post_op_attr_u.attributes.gid;
3545 nfsdirent->nlink = entry->name_attributes.post_op_attr_u.attributes.nlink;
3546 nfsdirent->dev = entry->name_attributes.post_op_attr_u.attributes.fsid;
3547 nfsdirent->rdev = specdata3_to_rdev(&entry->name_attributes.post_op_attr_u.attributes.rdev);
3548 nfsdirent->blksize = NFS_BLKSIZE;
3549 nfsdirent->blocks = (entry->name_attributes.post_op_attr_u.attributes.used + 512 - 1) / 512;
3550 nfsdirent->used = entry->name_attributes.post_op_attr_u.attributes.used;
3551 }
3552
3553 nfsdirent->next = nfsdir->entries;
3554 nfsdir->entries = nfsdirent;
3555
3556 cookie = entry->cookie;
3557 entry = entry->nextentry;
3558 }
3559
3560 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
3561 READDIRPLUS3args args;
3562
3563 args.dir = data->fh;
3564 args.cookie = cookie;
3565 memcpy(&args.cookieverf, res->READDIRPLUS3res_u.resok.cookieverf, sizeof(cookieverf3));
3566 args.dircount = 8192;
3567 args.maxcount = 8192;
3568
3569 if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
3570 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
3571 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3572 nfs_free_nfsdir(nfsdir);
3573 data->continue_data = NULL;
3574 free_nfs_cb_data(data);
3575 return;
3576 }
3577 return;
3578 }
3579
3580 if (res->READDIRPLUS3res_u.resok.dir_attributes.attributes_follow)
3581 nfsdir->attr = res->READDIRPLUS3res_u.resok.dir_attributes.post_op_attr_u.attributes;
3582
3583 /* steal the dirhandle */
3584 data->continue_data = NULL;
3585 nfsdir->current = nfsdir->entries;
3586
3587 data->cb(0, nfs, nfsdir, data->private_data);
3588 free_nfs_cb_data(data);
3589 }
3590
3591 static int nfs_opendir_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
3592 {
3593 READDIRPLUS3args args;
3594 struct nfsdir *nfsdir = data->continue_data;;
3595 struct nfsdir *cached;
3596
3597 cached = nfs_dircache_find(nfs, &data->fh);
3598 if (cached) {
3599 if (attr && attr->mtime.seconds == cached->attr.mtime.seconds) {
3600 cached->current = cached->entries;
3601 data->cb(0, nfs, cached, data->private_data);
3602 free_nfs_cb_data(data);
3603 return 0;
3604 } else {
3605 /* cache must be stale */
3606 nfs_free_nfsdir(cached);
3607 }
3608 }
3609
3610 nfsdir->fh.data.data_len = data->fh.data.data_len;
3611 nfsdir->fh.data.data_val = malloc(nfsdir->fh.data.data_len);
3612 if (nfsdir->fh.data.data_val == NULL) {
3613 rpc_set_error(nfs->rpc, "OOM when allocating fh for nfsdir");
3614 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3615 free_nfs_cb_data(data);
3616 return -1;
3617 }
3618 memcpy(nfsdir->fh.data.data_val, data->fh.data.data_val, data->fh.data.data_len);
3619
3620 args.dir = data->fh;
3621 args.cookie = 0;
3622 memset(&args.cookieverf, 0, sizeof(cookieverf3));
3623 args.dircount = 8192;
3624 args.maxcount = 8192;
3625 if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
3626 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
3627 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3628 free_nfs_cb_data(data);
3629 return -1;
3630 }
3631 return 0;
3632 }
3633
3634 int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
3635 {
3636 struct nfsdir *nfsdir;
3637
3638 nfsdir = malloc(sizeof(struct nfsdir));
3639 if (nfsdir == NULL) {
3640 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
3641 return -1;
3642 }
3643 memset(nfsdir, 0, sizeof(struct nfsdir));
3644
3645 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
3646 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3647 return -1;
3648 }
3649
3650 return 0;
3651 }
3652
3653
3654 struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
3655 {
3656 struct nfsdirent *nfsdirent = nfsdir->current;
3657
3658 if (nfsdir->current != NULL) {
3659 nfsdir->current = nfsdir->current->next;
3660 }
3661 return nfsdirent;
3662 }
3663
3664
3665 /*
3666 * closedir()
3667 */
3668 void nfs_closedir(struct nfs_context *nfs, struct nfsdir *nfsdir)
3669 {
3670 nfs_dircache_add(nfs, nfsdir);
3671 }
3672
3673
3674 /*
3675 * getcwd()
3676 */
3677 void nfs_getcwd(struct nfs_context *nfs, const char **cwd)
3678 {
3679 if (cwd) {
3680 *cwd = nfs->cwd;
3681 }
3682 }
3683
3684
3685 /*
3686 * Async lseek()
3687 */
3688 struct lseek_cb_data {
3689 struct nfs_context *nfs;
3690 struct nfsfh *nfsfh;
3691 int64_t offset;
3692 nfs_cb cb;
3693 void *private_data;
3694 };
3695
3696 static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3697 {
3698 GETATTR3res *res;
3699 struct lseek_cb_data *data = private_data;
3700 struct nfs_context *nfs = data->nfs;
3701 uint64_t size = 0;
3702
3703 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3704
3705 if (status == RPC_STATUS_ERROR) {
3706 data->cb(-EFAULT, nfs, command_data, data->private_data);
3707 free(data);
3708 return;
3709 }
3710 if (status == RPC_STATUS_CANCEL) {
3711 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3712 free(data);
3713 return;
3714 }
3715
3716 res = command_data;
3717 if (res->status != NFS3_OK) {
3718 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3719 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3720 free(data);
3721 return;
3722 }
3723
3724 size = res->GETATTR3res_u.resok.obj_attributes.size;
3725
3726 if (data->offset < 0 &&
3727 (uint64_t)(-data->offset) > size) {
3728 data->cb(-EINVAL, nfs, &data->nfsfh->offset, data->private_data);
3729 } else {
3730 data->nfsfh->offset = data->offset + size;
3731 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
3732 }
3733
3734 free(data);
3735 }
3736
3737 int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int64_t offset, int whence, nfs_cb cb, void *private_data)
3738 {
3739 struct lseek_cb_data *data;
3740 struct GETATTR3args args;
3741
3742 if (whence == SEEK_SET) {
3743 if (offset < 0) {
3744 cb(-EINVAL, nfs, &nfsfh->offset, private_data);
3745 } else {
3746 nfsfh->offset = offset;
3747 cb(0, nfs, &nfsfh->offset, private_data);
3748 }
3749 return 0;
3750 }
3751 if (whence == SEEK_CUR) {
3752 if (offset < 0 &&
3753 nfsfh->offset < (uint64_t)(-offset)) {
3754 cb(-EINVAL, nfs, &nfsfh->offset, private_data);
3755 } else {
3756 nfsfh->offset += offset;
3757 cb(0, nfs, &nfsfh->offset, private_data);
3758 }
3759 return 0;
3760 }
3761
3762 data = malloc(sizeof(struct lseek_cb_data));
3763 if (data == NULL) {
3764 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
3765 return -1;
3766 }
3767
3768 data->nfs = nfs;
3769 data->nfsfh = nfsfh;
3770 data->offset = offset;
3771 data->cb = cb;
3772 data->private_data = private_data;
3773
3774 memset(&args, 0, sizeof(GETATTR3args));
3775 args.object = nfsfh->fh;
3776
3777 if (rpc_nfs3_getattr_async(nfs->rpc, nfs_lseek_1_cb, &args, data) != 0) {
3778 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
3779 free(data);
3780 return -1;
3781 }
3782 return 0;
3783 }
3784
3785
3786
3787
3788 /*
3789 * Async statvfs()
3790 */
3791 static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3792 {
3793 FSSTAT3res *res;
3794 struct nfs_cb_data *data = private_data;
3795 struct nfs_context *nfs = data->nfs;
3796 struct statvfs svfs;
3797
3798 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3799
3800 if (status == RPC_STATUS_ERROR) {
3801 data->cb(-EFAULT, nfs, command_data, data->private_data);
3802 free_nfs_cb_data(data);
3803 return;
3804 }
3805 if (status == RPC_STATUS_CANCEL) {
3806 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3807 free_nfs_cb_data(data);
3808 return;
3809 }
3810
3811 res = command_data;
3812 if (res->status != NFS3_OK) {
3813 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));
3814 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3815 free_nfs_cb_data(data);
3816 return;
3817 }
3818
3819 svfs.f_bsize = NFS_BLKSIZE;
3820 svfs.f_frsize = NFS_BLKSIZE;
3821 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/NFS_BLKSIZE;
3822 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/NFS_BLKSIZE;
3823 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/NFS_BLKSIZE;
3824 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
3825 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
3826 #if !defined(ANDROID)
3827 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
3828 svfs.f_fsid = 0;
3829 svfs.f_flag = 0;
3830 svfs.f_namemax = 256;
3831 #endif
3832
3833 data->cb(0, nfs, &svfs, data->private_data);
3834 free_nfs_cb_data(data);
3835 }
3836
3837 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
3838 {
3839 FSSTAT3args args;
3840
3841 args.fsroot = data->fh;
3842 if (rpc_nfs3_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &args, data) != 0) {
3843 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
3844 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3845 free_nfs_cb_data(data);
3846 return -1;
3847 }
3848 return 0;
3849 }
3850
3851 int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
3852 {
3853 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
3854 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3855 return -1;
3856 }
3857
3858 return 0;
3859 }
3860
3861
3862
3863
3864 /*
3865 * Async readlink()
3866 */
3867 static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3868 {
3869 READLINK3res *res;
3870 struct nfs_cb_data *data = private_data;
3871 struct nfs_context *nfs = data->nfs;
3872
3873 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3874
3875 if (status == RPC_STATUS_ERROR) {
3876 data->cb(-EFAULT, nfs, command_data, data->private_data);
3877 free_nfs_cb_data(data);
3878 return;
3879 }
3880 if (status == RPC_STATUS_CANCEL) {
3881 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3882 free_nfs_cb_data(data);
3883 return;
3884 }
3885
3886 res = command_data;
3887 if (res->status != NFS3_OK) {
3888 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));
3889 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3890 free_nfs_cb_data(data);
3891 return;
3892 }
3893
3894
3895 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
3896 free_nfs_cb_data(data);
3897 }
3898
3899 static int nfs_readlink_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
3900 {
3901 READLINK3args args;
3902
3903 args.symlink = data->fh;
3904
3905 if (rpc_nfs3_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
3906 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
3907 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3908 free_nfs_cb_data(data);
3909 return -1;
3910 }
3911 return 0;
3912 }
3913
3914 int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
3915 {
3916 if (nfs_lookuppath_async(nfs, path, 1, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
3917 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3918 return -1;
3919 }
3920
3921 return 0;
3922 }
3923
3924
3925
3926
3927 /*
3928 * Async chmod()
3929 */
3930 static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3931 {
3932 struct nfs_cb_data *data = private_data;
3933 struct nfs_context *nfs = data->nfs;
3934 SETATTR3res *res;
3935
3936 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3937
3938 if (status == RPC_STATUS_ERROR) {
3939 data->cb(-EFAULT, nfs, command_data, data->private_data);
3940 free_nfs_cb_data(data);
3941 return;
3942 }
3943 if (status == RPC_STATUS_CANCEL) {
3944 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3945 free_nfs_cb_data(data);
3946 return;
3947 }
3948
3949 res = command_data;
3950 if (res->status != NFS3_OK) {
3951 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3952 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3953 free_nfs_cb_data(data);
3954 return;
3955 }
3956
3957 data->cb(0, nfs, NULL, data->private_data);
3958 free_nfs_cb_data(data);
3959 }
3960
3961 static int nfs_chmod_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
3962 {
3963 SETATTR3args args;
3964
3965 memset(&args, 0, sizeof(SETATTR3args));
3966 args.object = data->fh;
3967 args.new_attributes.mode.set_it = 1;
3968 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
3969
3970 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
3971 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3972 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3973 free_nfs_cb_data(data);
3974 return -1;
3975 }
3976 return 0;
3977 }
3978
3979
3980 int nfs_chmod_async_internal(struct nfs_context *nfs, const char *path, int no_follow, int mode, nfs_cb cb, void *private_data)
3981 {
3982 if (nfs_lookuppath_async(nfs, path, no_follow, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
3983 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3984 return -1;
3985 }
3986
3987 return 0;
3988 }
3989
3990 int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3991 {
3992 return nfs_chown_async_internal(nfs, path, 0, mode, cb, private_data);
3993 }
3994
3995 int nfs_lchmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3996 {
3997 return nfs_chown_async_internal(nfs, path, 1, mode, cb, private_data);
3998 }
3999
4000 /*
4001 * Async fchmod()
4002 */
4003 int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
4004 {
4005 struct nfs_cb_data *data;
4006
4007 data = malloc(sizeof(struct nfs_cb_data));
4008 if (data == NULL) {
4009 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
4010 return -1;
4011 }
4012 memset(data, 0, sizeof(struct nfs_cb_data));
4013 data->nfs = nfs;
4014 data->cb = cb;
4015 data->private_data = private_data;
4016 data->continue_int = mode;
4017 data->fh.data.data_len = nfsfh->fh.data.data_len;
4018 data->fh.data.data_val = malloc(data->fh.data.data_len);
4019 if (data->fh.data.data_val == NULL) {
4020 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
4021 free_nfs_cb_data(data);
4022 return -1;
4023 }
4024 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
4025
4026 if (nfs_chmod_continue_internal(nfs, NULL, data) != 0) {
4027 return -1;
4028 }
4029
4030 return 0;
4031 }
4032
4033
4034
4035 /*
4036 * Async chown()
4037 */
4038 static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4039 {
4040 struct nfs_cb_data *data = private_data;
4041 struct nfs_context *nfs = data->nfs;
4042 SETATTR3res *res;
4043
4044 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4045
4046 if (status == RPC_STATUS_ERROR) {
4047 data->cb(-EFAULT, nfs, command_data, data->private_data);
4048 free_nfs_cb_data(data);
4049 return;
4050 }
4051 if (status == RPC_STATUS_CANCEL) {
4052 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
4053 free_nfs_cb_data(data);
4054 return;
4055 }
4056
4057 res = command_data;
4058 if (res->status != NFS3_OK) {
4059 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
4060 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
4061 free_nfs_cb_data(data);
4062 return;
4063 }
4064
4065 data->cb(0, nfs, NULL, data->private_data);
4066 free_nfs_cb_data(data);
4067 }
4068
4069 struct nfs_chown_data {
4070 uid_t uid;
4071 gid_t gid;
4072 };
4073
4074 static int nfs_chown_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4075 {
4076 SETATTR3args args;
4077 struct nfs_chown_data *chown_data = data->continue_data;
4078
4079 memset(&args, 0, sizeof(SETATTR3args));
4080 args.object = data->fh;
4081 if (chown_data->uid != (uid_t)-1) {
4082 args.new_attributes.uid.set_it = 1;
4083 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
4084 }
4085 if (chown_data->gid != (gid_t)-1) {
4086 args.new_attributes.gid.set_it = 1;
4087 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
4088 }
4089
4090 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
4091 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
4092 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4093 free_nfs_cb_data(data);
4094 return -1;
4095 }
4096 return 0;
4097 }
4098
4099
4100 int nfs_chown_async_internal(struct nfs_context *nfs, const char *path, int no_follow, int uid, int gid, nfs_cb cb, void *private_data)
4101 {
4102 struct nfs_chown_data *chown_data;
4103
4104 chown_data = malloc(sizeof(struct nfs_chown_data));
4105 if (chown_data == NULL) {
4106 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
4107 return -1;
4108 }
4109
4110 chown_data->uid = uid;
4111 chown_data->gid = gid;
4112
4113 if (nfs_lookuppath_async(nfs, path, no_follow, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
4114 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4115 return -1;
4116 }
4117
4118 return 0;
4119 }
4120
4121 int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
4122 {
4123 return nfs_chown_async_internal(nfs, path, 0, uid, gid, cb, private_data);
4124 }
4125
4126 int nfs_lchown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
4127 {
4128 return nfs_chown_async_internal(nfs, path, 1, uid, gid, cb, private_data);
4129 }
4130
4131 /*
4132 * Async fchown()
4133 */
4134 int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
4135 {
4136 struct nfs_cb_data *data;
4137 struct nfs_chown_data *chown_data;
4138
4139 chown_data = malloc(sizeof(struct nfs_chown_data));
4140 if (chown_data == NULL) {
4141 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
4142 return -1;
4143 }
4144
4145 chown_data->uid = uid;
4146 chown_data->gid = gid;
4147
4148 data = malloc(sizeof(struct nfs_cb_data));
4149 if (data == NULL) {
4150 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
4151 free(chown_data);
4152 return -1;
4153 }
4154 memset(data, 0, sizeof(struct nfs_cb_data));
4155 data->nfs = nfs;
4156 data->cb = cb;
4157 data->private_data = private_data;
4158 data->continue_data = chown_data;
4159 data->free_continue_data = free;
4160 data->fh.data.data_len = nfsfh->fh.data.data_len;
4161 data->fh.data.data_val = malloc(data->fh.data.data_len);
4162 if (data->fh.data.data_val == NULL) {
4163 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
4164 free_nfs_cb_data(data);
4165 return -1;
4166 }
4167 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
4168
4169 if (nfs_chown_continue_internal(nfs, NULL, data) != 0) {
4170 return -1;
4171 }
4172
4173 return 0;
4174 }
4175
4176
4177
4178
4179
4180 /*
4181 * Async utimes()
4182 */
4183 static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4184 {
4185 struct nfs_cb_data *data = private_data;
4186 struct nfs_context *nfs = data->nfs;
4187 SETATTR3res *res;
4188
4189 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4190
4191 if (status == RPC_STATUS_ERROR) {
4192 data->cb(-EFAULT, nfs, command_data, data->private_data);
4193 free_nfs_cb_data(data);
4194 return;
4195 }
4196 if (status == RPC_STATUS_CANCEL) {
4197 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
4198 free_nfs_cb_data(data);
4199 return;
4200 }
4201
4202 res = command_data;
4203 if (res->status != NFS3_OK) {
4204 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
4205 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
4206 free_nfs_cb_data(data);
4207 return;
4208 }
4209
4210 data->cb(0, nfs, NULL, data->private_data);
4211 free_nfs_cb_data(data);
4212 }
4213
4214 static int nfs_utimes_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4215 {
4216 SETATTR3args args;
4217 struct timeval *utimes_data = data->continue_data;
4218
4219 memset(&args, 0, sizeof(SETATTR3args));
4220 args.object = data->fh;
4221 if (utimes_data != NULL) {
4222 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
4223 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
4224 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
4225 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
4226 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
4227 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
4228 } else {
4229 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
4230 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
4231 }
4232
4233 if (rpc_nfs3_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
4234 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
4235 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4236 free_nfs_cb_data(data);
4237 return -1;
4238 }
4239 return 0;
4240 }
4241
4242 int nfs_utimes_async_internal(struct nfs_context *nfs, const char *path, int no_follow, struct timeval *times, nfs_cb cb, void *private_data)
4243 {
4244 struct timeval *new_times = NULL;
4245
4246 if (times != NULL) {
4247 new_times = malloc(sizeof(struct timeval)*2);
4248 if (new_times == NULL) {
4249 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
4250 return -1;
4251 }
4252
4253 memcpy(new_times, times, sizeof(struct timeval)*2);
4254 }
4255
4256 if (nfs_lookuppath_async(nfs, path, no_follow, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
4257 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4258 return -1;
4259 }
4260
4261 return 0;
4262 }
4263
4264 int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
4265 {
4266 return nfs_utimes_async_internal(nfs, path, 0, times, cb, private_data);
4267 }
4268
4269 int nfs_lutimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
4270 {
4271 return nfs_utimes_async_internal(nfs, path, 1, times, cb, private_data);
4272 }
4273
4274 /*
4275 * Async utime()
4276 */
4277 int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
4278 {
4279 struct timeval *new_times = NULL;
4280
4281 if (times != NULL) {
4282 new_times = malloc(sizeof(struct timeval)*2);
4283 if (new_times == NULL) {
4284 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
4285 return -1;
4286 }
4287
4288 new_times[0].tv_sec = times->actime;
4289 new_times[0].tv_usec = 0;
4290 new_times[1].tv_sec = times->modtime;
4291 new_times[1].tv_usec = 0;
4292 }
4293
4294 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
4295 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4296 return -1;
4297 }
4298
4299 return 0;
4300 }
4301
4302
4303 /*
4304 * Async access()
4305 */
4306 static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4307 {
4308 ACCESS3res *res;
4309 struct nfs_cb_data *data = private_data;
4310 struct nfs_context *nfs = data->nfs;
4311 unsigned int nfsmode = 0;
4312
4313 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4314
4315 if (status == RPC_STATUS_ERROR) {
4316 data->cb(-EFAULT, nfs, command_data, data->private_data);
4317 free_nfs_cb_data(data);
4318 return;
4319 }
4320 if (status == RPC_STATUS_CANCEL) {
4321 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
4322 free_nfs_cb_data(data);
4323 return;
4324 }
4325
4326 res = command_data;
4327 if (res->status != NFS3_OK) {
4328 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));
4329 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
4330 free_nfs_cb_data(data);
4331 return;
4332 }
4333
4334 if (data->continue_int & R_OK) {
4335 nfsmode |= ACCESS3_READ;
4336 }
4337 if (data->continue_int & W_OK) {
4338 nfsmode |= ACCESS3_MODIFY;
4339 }
4340 if (data->continue_int & X_OK) {
4341 nfsmode |= ACCESS3_EXECUTE;
4342 }
4343
4344 if (res->ACCESS3res_u.resok.access != nfsmode) {
4345 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
4346 nfsmode&ACCESS3_READ?'r':'-',
4347 nfsmode&ACCESS3_MODIFY?'w':'-',
4348 nfsmode&ACCESS3_EXECUTE?'x':'-',
4349 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
4350 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
4351 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
4352 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
4353 free_nfs_cb_data(data);
4354 return;
4355 }
4356
4357 data->cb(0, nfs, NULL, data->private_data);
4358 free_nfs_cb_data(data);
4359 }
4360
4361 static int nfs_access_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4362 {
4363 int nfsmode = 0;
4364 ACCESS3args args;
4365
4366 if (data->continue_int & R_OK) {
4367 nfsmode |= ACCESS3_READ;
4368 }
4369 if (data->continue_int & W_OK) {
4370 nfsmode |= ACCESS3_MODIFY;
4371 }
4372 if (data->continue_int & X_OK) {
4373 nfsmode |= ACCESS3_EXECUTE;
4374 }
4375
4376 memset(&args, 0, sizeof(ACCESS3args));
4377 args.object = data->fh;
4378 args.access = nfsmode;
4379
4380 if (rpc_nfs3_access_async(nfs->rpc, nfs_access_cb, &args, data) != 0) {
4381 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
4382 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4383 free_nfs_cb_data(data);
4384 return -1;
4385 }
4386 return 0;
4387 }
4388
4389 int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
4390 {
4391 if (nfs_lookuppath_async(nfs, path, 0, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
4392 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4393 return -1;
4394 }
4395
4396 return 0;
4397 }
4398
4399
4400
4401 /*
4402 * Async symlink()
4403 */
4404 struct nfs_symlink_data {
4405 char *oldpath;
4406 char *newpathparent;
4407 char *newpathobject;
4408 };
4409
4410 static void free_nfs_symlink_data(void *mem)
4411 {
4412 struct nfs_symlink_data *data = mem;
4413
4414 if (data->oldpath != NULL) {
4415 free(data->oldpath);
4416 }
4417 if (data->newpathparent != NULL) {
4418 free(data->newpathparent);
4419 }
4420 if (data->newpathobject != NULL) {
4421 free(data->newpathobject);
4422 }
4423 free(data);
4424 }
4425
4426 static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4427 {
4428 SYMLINK3res *res;
4429 struct nfs_cb_data *data = private_data;
4430 struct nfs_context *nfs = data->nfs;
4431 struct nfs_symlink_data *symlink_data = data->continue_data;
4432
4433 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4434
4435 if (status == RPC_STATUS_ERROR) {
4436 data->cb(-EFAULT, nfs, command_data, data->private_data);
4437 free_nfs_cb_data(data);
4438 return;
4439 }
4440 if (status == RPC_STATUS_CANCEL) {
4441 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
4442 free_nfs_cb_data(data);
4443 return;
4444 }
4445
4446 res = command_data;
4447 if (res->status != NFS3_OK) {
4448 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));
4449 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
4450 free_nfs_cb_data(data);
4451 return;
4452 }
4453
4454 data->cb(0, nfs, NULL, data->private_data);
4455 free_nfs_cb_data(data);
4456 }
4457
4458 static int nfs_symlink_continue_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4459 {
4460 struct nfs_symlink_data *symlink_data = data->continue_data;
4461 SYMLINK3args args;
4462
4463 memset(&args, 0, sizeof(SYMLINK3args));
4464 args.where.dir = data->fh;
4465 args.where.name = symlink_data->newpathobject;
4466 args.symlink.symlink_attributes.mode.set_it = 1;
4467 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;
4468 args.symlink.symlink_data = symlink_data->oldpath;
4469
4470 if (rpc_nfs3_symlink_async(nfs->rpc, nfs_symlink_cb, &args, data) != 0) {
4471 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
4472 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4473 free_nfs_cb_data(data);
4474 return -1;
4475 }
4476 return 0;
4477 }
4478
4479 int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
4480 {
4481 char *ptr;
4482 struct nfs_symlink_data *symlink_data;
4483
4484 symlink_data = malloc(sizeof(struct nfs_symlink_data));
4485 if (symlink_data == NULL) {
4486 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
4487 return -1;
4488 }
4489 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
4490
4491 symlink_data->oldpath = strdup(oldpath);
4492 if (symlink_data->oldpath == NULL) {
4493 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
4494 free_nfs_symlink_data(symlink_data);
4495 return -1;
4496 }
4497
4498 symlink_data->newpathparent = strdup(newpath);
4499 if (symlink_data->newpathparent == NULL) {
4500 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
4501 free_nfs_symlink_data(symlink_data);
4502 return -1;
4503 }
4504
4505 ptr = strrchr(symlink_data->newpathparent, '/');
4506 if (ptr == NULL) {
4507 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
4508 free_nfs_symlink_data(symlink_data);
4509 return -1;
4510 }
4511 *ptr = 0;
4512 ptr++;
4513
4514 symlink_data->newpathobject = strdup(ptr);
4515 if (symlink_data->newpathobject == NULL) {
4516 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
4517 free_nfs_symlink_data(symlink_data);
4518 return -1;
4519 }
4520
4521 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, 0, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
4522 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4523 return -1;
4524 }
4525
4526 return 0;
4527 }
4528
4529
4530
4531 /*
4532 * Async rename()
4533 */
4534 struct nfs_rename_data {
4535 char *oldpath;
4536 char *oldobject;
4537 struct nfs_fh3 olddir;
4538 char *newpath;
4539 char *newobject;
4540 struct nfs_fh3 newdir;
4541 };
4542
4543 static void free_nfs_rename_data(void *mem)
4544 {
4545 struct nfs_rename_data *data = mem;
4546
4547 if (data->oldpath != NULL) {
4548 free(data->oldpath);
4549 }
4550 if (data->olddir.data.data_val != NULL) {
4551 free(data->olddir.data.data_val);
4552 }
4553 if (data->newpath != NULL) {
4554 free(data->newpath);
4555 }
4556 if (data->newdir.data.data_val != NULL) {
4557 free(data->newdir.data.data_val);
4558 }
4559 free(data);
4560 }
4561
4562 static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4563 {
4564 RENAME3res *res;
4565 struct nfs_cb_data *data = private_data;
4566 struct nfs_context *nfs = data->nfs;
4567 struct nfs_rename_data *rename_data = data->continue_data;
4568
4569 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4570
4571 if (status == RPC_STATUS_ERROR) {
4572 data->cb(-EFAULT, nfs, command_data, data->private_data);
4573 free_nfs_cb_data(data);
4574 return;
4575 }
4576 if (status == RPC_STATUS_CANCEL) {
4577 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
4578 free_nfs_cb_data(data);
4579 return;
4580 }
4581
4582 res = command_data;
4583 if (res->status != NFS3_OK) {
4584 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));
4585 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
4586 free_nfs_cb_data(data);
4587 return;
4588 }
4589
4590 data->cb(0, nfs, NULL, data->private_data);
4591 free_nfs_cb_data(data);
4592 }
4593
4594 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4595 {
4596 struct nfs_rename_data *rename_data = data->continue_data;
4597 RENAME3args args;
4598
4599 /* steal the filehandle */
4600 rename_data->newdir = data->fh;
4601 data->fh.data.data_val = NULL;
4602
4603 args.from.dir = rename_data->olddir;
4604 args.from.name = rename_data->oldobject;
4605 args.to.dir = rename_data->newdir;
4606 args.to.name = rename_data->newobject;
4607 if (rpc_nfs3_rename_async(nfs->rpc, nfs_rename_cb, &args, data) != 0) {
4608 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
4609 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4610 free_nfs_cb_data(data);
4611 return -1;
4612 }
4613 return 0;
4614 }
4615
4616
4617 static int nfs_rename_continue_1_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4618 {
4619 struct nfs_rename_data *rename_data = data->continue_data;
4620 char* newpath = strdup(rename_data->newpath);
4621 if (!newpath) {
4622 rpc_set_error(nfs->rpc, "Out of memory. Could not allocate memory to store target path for rename");
4623 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4624 free_nfs_cb_data(data);
4625 return -1;
4626 }
4627
4628 /* steal the filehandle */
4629 rename_data->olddir = data->fh;
4630 data->fh.data.data_val = NULL;
4631
4632 if (nfs_lookuppath_async(nfs, rename_data->newpath, 0, data->cb, data->private_data, nfs_rename_continue_2_internal, rename_data, free_nfs_rename_data, 0) != 0) {
4633 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", newpath);
4634 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4635 free_nfs_cb_data(data);
4636 free(newpath);
4637 return -1;
4638 }
4639 data->continue_data = NULL;
4640 free_nfs_cb_data(data);
4641 free(newpath);
4642
4643 return 0;
4644 }
4645
4646
4647 int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
4648 {
4649 char *ptr;
4650 struct nfs_rename_data *rename_data;
4651
4652 rename_data = malloc(sizeof(struct nfs_rename_data));
4653 if (rename_data == NULL) {
4654 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
4655 return -1;
4656 }
4657 memset(rename_data, 0, sizeof(struct nfs_rename_data));
4658
4659 rename_data->oldpath = strdup(oldpath);
4660 if (rename_data->oldpath == NULL) {
4661 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
4662 free_nfs_rename_data(rename_data);
4663 return -1;
4664 }
4665 ptr = strrchr(rename_data->oldpath, '/');
4666 if (ptr == NULL) {
4667 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
4668 free_nfs_rename_data(rename_data);
4669 return -1;
4670 }
4671 *ptr = 0;
4672 ptr++;
4673 rename_data->oldobject = ptr;
4674
4675
4676 rename_data->newpath = strdup(newpath);
4677 if (rename_data->newpath == NULL) {
4678 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
4679 free_nfs_rename_data(rename_data);
4680 return -1;
4681 }
4682 ptr = strrchr(rename_data->newpath, '/');
4683 if (ptr == NULL) {
4684 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
4685 free_nfs_rename_data(rename_data);
4686 return -1;
4687 }
4688 *ptr = 0;
4689 ptr++;
4690 rename_data->newobject = ptr;
4691
4692
4693 if (nfs_lookuppath_async(nfs, rename_data->oldpath, 0, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
4694 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4695 return -1;
4696 }
4697
4698 return 0;
4699 }
4700
4701
4702 /*
4703 * Async link()
4704 */
4705 struct nfs_link_data {
4706 char *oldpath;
4707 struct nfs_fh3 oldfh;
4708 char *newpath;
4709 char *newobject;
4710 struct nfs_fh3 newdir;
4711 };
4712
4713 static void free_nfs_link_data(void *mem)
4714 {
4715 struct nfs_link_data *data = mem;
4716
4717 if (data->oldpath != NULL) {
4718 free(data->oldpath);
4719 }
4720 if (data->oldfh.data.data_val != NULL) {
4721 free(data->oldfh.data.data_val);
4722 }
4723 if (data->newpath != NULL) {
4724 free(data->newpath);
4725 }
4726 if (data->newdir.data.data_val != NULL) {
4727 free(data->newdir.data.data_val);
4728 }
4729 free(data);
4730 }
4731
4732 static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4733 {
4734 LINK3res *res;
4735 struct nfs_cb_data *data = private_data;
4736 struct nfs_context *nfs = data->nfs;
4737 struct nfs_link_data *link_data = data->continue_data;
4738
4739 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4740
4741 if (status == RPC_STATUS_ERROR) {
4742 data->cb(-EFAULT, nfs, command_data, data->private_data);
4743 free_nfs_cb_data(data);
4744 return;
4745 }
4746 if (status == RPC_STATUS_CANCEL) {
4747 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
4748 free_nfs_cb_data(data);
4749 return;
4750 }
4751
4752 res = command_data;
4753 if (res->status != NFS3_OK) {
4754 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));
4755 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
4756 free_nfs_cb_data(data);
4757 return;
4758 }
4759
4760 data->cb(0, nfs, NULL, data->private_data);
4761 free_nfs_cb_data(data);
4762 }
4763
4764 static int nfs_link_continue_2_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4765 {
4766 struct nfs_link_data *link_data = data->continue_data;
4767 LINK3args args;
4768
4769 /* steal the filehandle */
4770 link_data->newdir = data->fh;
4771 data->fh.data.data_val = NULL;
4772
4773 memset(&args, 0, sizeof(LINK3args));
4774 args.file = link_data->oldfh;
4775 args.link.dir = link_data->newdir;
4776 args.link.name = link_data->newobject;
4777 if (rpc_nfs3_link_async(nfs->rpc, nfs_link_cb, &args, data) != 0) {
4778 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
4779 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4780 free_nfs_cb_data(data);
4781 return -1;
4782 }
4783 return 0;
4784 }
4785
4786
4787 static int nfs_link_continue_1_internal(struct nfs_context *nfs, fattr3 *attr _U_, struct nfs_cb_data *data)
4788 {
4789 struct nfs_link_data *link_data = data->continue_data;
4790
4791 /* steal the filehandle */
4792 link_data->oldfh = data->fh;
4793 data->fh.data.data_val = NULL;
4794
4795 if (nfs_lookuppath_async(nfs, link_data->newpath, 0, data->cb, data->private_data, nfs_link_continue_2_internal, link_data, free_nfs_link_data, 0) != 0) {
4796 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
4797 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
4798 free_nfs_cb_data(data);
4799 return -1;
4800 }
4801 data->continue_data = NULL;
4802 free_nfs_cb_data(data);
4803
4804 return 0;
4805 }
4806
4807
4808 int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
4809 {
4810 char *ptr;
4811 struct nfs_link_data *link_data;
4812
4813 link_data = malloc(sizeof(struct nfs_link_data));
4814 if (link_data == NULL) {
4815 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
4816 return -1;
4817 }
4818 memset(link_data, 0, sizeof(struct nfs_link_data));
4819
4820 link_data->oldpath = strdup(oldpath);
4821 if (link_data->oldpath == NULL) {
4822 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
4823 free_nfs_link_data(link_data);
4824 return -1;
4825 }
4826
4827 link_data->newpath = strdup(newpath);
4828 if (link_data->newpath == NULL) {
4829 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
4830 free_nfs_link_data(link_data);
4831 return -1;
4832 }
4833 ptr = strrchr(link_data->newpath, '/');
4834 if (ptr == NULL) {
4835 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
4836 free_nfs_link_data(link_data);
4837 return -1;
4838 }
4839 *ptr = 0;
4840 ptr++;
4841 link_data->newobject = ptr;
4842
4843
4844 if (nfs_lookuppath_async(nfs, link_data->oldpath, 0, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
4845 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
4846 return -1;
4847 }
4848
4849 return 0;
4850 }
4851
4852
4853 //qqq replace later with lseek()
4854 uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
4855 {
4856 return nfsfh->offset;
4857 }
4858
4859
4860
4861 /*
4862 * Get the maximum supported READ3 size by the server
4863 */
4864 uint64_t nfs_get_readmax(struct nfs_context *nfs)
4865 {
4866 return nfs->readmax;
4867 }
4868
4869 /*
4870 * Get the maximum supported WRITE3 size by the server
4871 */
4872 uint64_t nfs_get_writemax(struct nfs_context *nfs)
4873 {
4874 return nfs->writemax;
4875 }
4876
4877 void nfs_set_tcp_syncnt(struct nfs_context *nfs, int v) {
4878 rpc_set_tcp_syncnt(nfs->rpc, v);
4879 }
4880
4881 void nfs_set_uid(struct nfs_context *nfs, int uid) {
4882 rpc_set_uid(nfs->rpc, uid);
4883 }
4884
4885 void nfs_set_gid(struct nfs_context *nfs, int gid) {
4886 rpc_set_gid(nfs->rpc, gid);
4887 }
4888
4889 void nfs_set_readahead(struct nfs_context *nfs, uint32_t v) {
4890 rpc_set_readahead(nfs->rpc, v);
4891 }
4892
4893 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
4894 {
4895 va_list ap;
4896 char *str = NULL;
4897
4898 va_start(ap, error_string);
4899 str = malloc(1024);
4900 vsnprintf(str, 1024, error_string, ap);
4901 if (nfs->rpc->error_string != NULL) {
4902 free(nfs->rpc->error_string);
4903 }
4904 nfs->rpc->error_string = str;
4905 va_end(ap);
4906 }
4907
4908
4909
4910 struct mount_cb_data {
4911 rpc_cb cb;
4912 void *private_data;
4913 char *server;
4914 };
4915
4916 static void free_mount_cb_data(struct mount_cb_data *data)
4917 {
4918 if (data->server != NULL) {
4919 free(data->server);
4920 data->server = NULL;
4921 }
4922
4923 free(data);
4924 }
4925
4926 static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4927 {
4928 struct mount_cb_data *data = private_data;
4929
4930 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4931
4932 if (status == RPC_STATUS_ERROR) {
4933 data->cb(rpc, -EFAULT, command_data, data->private_data);
4934 free_mount_cb_data(data);
4935 return;
4936 }
4937 if (status == RPC_STATUS_CANCEL) {
4938 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4939 free_mount_cb_data(data);
4940 return;
4941 }
4942
4943 data->cb(rpc, 0, command_data, data->private_data);
4944 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
4945 rpc_set_error(rpc, "Failed to disconnect\n");
4946 }
4947 free_mount_cb_data(data);
4948 }
4949
4950 static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
4951 {
4952 struct mount_cb_data *data = private_data;
4953
4954 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4955
4956 /* Dont want any more callbacks even if the socket is closed */
4957 rpc->connect_cb = NULL;
4958
4959 if (status == RPC_STATUS_ERROR) {
4960 data->cb(rpc, -EFAULT, command_data, data->private_data);
4961 free_mount_cb_data(data);
4962 return;
4963 }
4964 if (status == RPC_STATUS_CANCEL) {
4965 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
4966 free_mount_cb_data(data);
4967 return;
4968 }
4969
4970 if (rpc_mount3_export_async(rpc, mount_export_5_cb, data) != 0) {
4971 data->cb(rpc, -ENOMEM, command_data, data->private_data);
4972 free_mount_cb_data(data);
4973 return;
4974 }
4975 }
4976
4977 int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
4978 {
4979 struct mount_cb_data *data;
4980
4981 assert(rpc->magic == RPC_CONTEXT_MAGIC);
4982
4983 data = malloc(sizeof(struct mount_cb_data));
4984 if (data == NULL) {
4985 return -1;
4986 }
4987 memset(data, 0, sizeof(struct mount_cb_data));
4988 data->cb = cb;
4989 data->private_data = private_data;
4990 data->server = strdup(server);
4991 if (data->server == NULL) {
4992 free_mount_cb_data(data);
4993 return -1;
4994 }
4995 if (rpc_connect_program_async(rpc, data->server, MOUNT_PROGRAM, MOUNT_V3, mount_export_4_cb, data) != 0) {
4996 rpc_set_error(rpc, "Failed to start connection");
4997 free_mount_cb_data(data);
4998 return -1;
4999 }
5000
5001 return 0;
5002 }
5003
5004 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
5005 {
5006 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
5007 return nfs->rpc;
5008 }
5009
5010 const char *nfs_get_server(struct nfs_context *nfs) {
5011 return nfs->server;
5012 }
5013
5014 const char *nfs_get_export(struct nfs_context *nfs) {
5015 return nfs->export;
5016 }
5017
5018 const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
5019 return &nfs->rootfh;
5020 }
5021
5022 struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
5023 return &nfsfh->fh;
5024 }
libnfs Piment Noir Debian package repository