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examples/nfs-cp: use nfs_parse_url_full
[deb_libnfs.git] / lib / libnfs.c
CommitLineData
84004dbf
RS		 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 */
00748f36
RS		 20#ifdef HAVE_CONFIG_H
21#include "config.h"
22#endif
23
108c622a
RS		 24#ifdef AROS
25#include "aros_compat.h"
00748f36
RS		 26#endif
27
a8a1b858
M		 28#ifdef WIN32
29#include "win32_compat.h"
bff8fe46
RS		 30#endif
31
32#ifdef HAVE_UTIME_H
d7c6e9aa 33#include <utime.h>
bff8fe46 34#endif
d7c6e9aa 35
d7c6e9aa 36#ifdef ANDROID
252aa90d 37#define statvfs statfs
108c622a 38#endif
a8a1b858
M		 39
40#define _GNU_SOURCE
6874f61e 41
108c622a
RS		 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
72897005
RS		 54#ifdef HAVE_NETINET_IN_H
55#include <netinet/in.h>
56#endif
57
bff8fe46
RS		 58#ifdef HAVE_STRINGS_H
59#include <strings.h>
60#endif
61
84004dbf 62#include <stdio.h>
1896d37b 63#include <stdarg.h>
84004dbf
RS		 64#include <stdlib.h>
65#include <string.h>
f3a75078 66#include <assert.h>
84004dbf
RS		 67#include <errno.h>
68#include <sys/types.h>
69#include <sys/stat.h>
84004dbf 70#include <fcntl.h>
763cd6e3 71#include "libnfs-zdr.h"
84004dbf
RS		 72#include "libnfs.h"
73#include "libnfs-raw.h"
74#include "libnfs-raw-mount.h"
75#include "libnfs-raw-nfs.h"
1896d37b
RS		 76#include "libnfs-private.h"
77
78struct nfsdir {
79 struct nfsdirent *entries;
80 struct nfsdirent *current;
81};
84004dbf
RS		 82
83struct nfsfh {
84 struct nfs_fh3 fh;
85 int is_sync;
183451cf 86 uint64_t offset;
84004dbf
RS		 87};
88
1896d37b
RS		 89struct nfs_context {
90 struct rpc_context *rpc;
91 char *server;
92 char *export;
93 struct nfs_fh3 rootfh;
183451cf
RS		 94 uint64_t readmax;
95 uint64_t writemax;
84004dbf
RS		 96};
97
98void nfs_free_nfsdir(struct nfsdir *nfsdir)
99{
100 while (nfsdir->entries) {
101 struct nfsdirent *dirent = nfsdir->entries->next;
102 if (nfsdir->entries->name != NULL) {
103 free(nfsdir->entries->name);
104 }
105 free(nfsdir->entries);
106 nfsdir->entries = dirent;
107 }
108 free(nfsdir);
109}
110
84004dbf
RS		 111struct nfs_cb_data;
112typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
113
114struct nfs_cb_data {
115 struct nfs_context *nfs;
116 struct nfsfh *nfsfh;
117 char *saved_path, *path;
118
119 nfs_cb cb;
120 void *private_data;
121
122 continue_func continue_cb;
123 void *continue_data;
124 void (*free_continue_data)(void *);
125 int continue_int;
126
127 struct nfs_fh3 fh;
921f877b
RS		 128
129 /* for multi-read/write calls. */
130 int error;
131 int cancel;
132 int num_calls;
183451cf 133 uint64_t start_offset, max_offset;
921f877b
RS		 134 char *buffer;
135};
136
137struct nfs_mcb_data {
138 struct nfs_cb_data *data;
183451cf
RS		 139 uint64_t offset;
140 uint64_t count;
84004dbf
RS		 141};
142
143static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
144
145
67ba2239 146void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
84004dbf 147{
9896c715 148 rpc_set_auth(nfs->rpc, auth);
84004dbf
RS		 149}
150
151int nfs_get_fd(struct nfs_context *nfs)
152{
153 return rpc_get_fd(nfs->rpc);
154}
155
83aa785d
RS		 156int nfs_queue_length(struct nfs_context *nfs)
157{
158 return rpc_queue_length(nfs->rpc);
159}
160
84004dbf
RS		 161int nfs_which_events(struct nfs_context *nfs)
162{
163 return rpc_which_events(nfs->rpc);
164}
165
166int nfs_service(struct nfs_context *nfs, int revents)
167{
168 return rpc_service(nfs->rpc, revents);
169}
170
171char *nfs_get_error(struct nfs_context *nfs)
172{
173 return rpc_get_error(nfs->rpc);
174};
175
d2ec73c7
PL		 176static struct nfs_url *nfs_parse_url(struct nfs_context *nfs, char *url, int dir, int incomplete)
177{
178 struct nfs_url *urls;
179 char *strp, *flagsp, *strp2;
180
181 if (strncmp(url, "nfs://", 6)) {
182 rpc_set_error(nfs->rpc, "Invalid URL specified");
183 return NULL;
184 }
185
186 urls = malloc(sizeof(struct nfs_url));
187 if (urls == NULL) {
188 rpc_set_error(nfs->rpc, "Out of memory");
189 return NULL;
190 }
191
192 urls->server = strdup(url + 6);
193 if (urls->server == NULL) {
194 nfs_destroy_url(urls);
195 rpc_set_error(nfs->rpc, "Out of memory");
196 return NULL;
197 }
198
199 if (urls->server[0] == '/' || urls->server[0] == '\0' ||
200 urls->server[0] == '?') {
201 if (incomplete) {
202 flagsp = strchr(urls->server, '?');
203 goto flags;
204 }
205 nfs_destroy_url(urls);
206 rpc_set_error(nfs->rpc, "Invalid server string");
207 return NULL;
208 }
209
210 strp = strchr(urls->server, '/');
211 if (strp == NULL) {
212 if (incomplete) {
213 flagsp = strchr(urls->server, '?');
214 goto flags;
215 }
216 nfs_destroy_url(urls);
217 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
218 return NULL;
219 }
220
221 urls->path = strdup(strp);
222 if (urls->path == NULL) {
223 nfs_destroy_url(urls);
224 rpc_set_error(nfs->rpc, "Out of memory");
225 return NULL;
226 }
227 *strp = 0;
228
229 if (dir) {
230 flagsp = strchr(urls->path, '?');
231 goto flags;
232 }
233
234 strp = strrchr(urls->path, '/');
235 if (strp == NULL) {
236 if (incomplete) {
237 flagsp = strchr(urls->path, '?');
238 goto flags;
239 }
240 nfs_destroy_url(urls);
241 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
242 return NULL;
243 }
244 urls->file = strdup(strp);
245 if (urls->path == NULL) {
246 nfs_destroy_url(urls);
247 rpc_set_error(nfs->rpc, "Out of memory");
248 return NULL;
249 }
250 *strp = 0;
251 flagsp = strchr(urls->file, '?');
252
253flags:
254 if (flagsp) {
255 *flagsp = 0;
256 }
257
258 if (urls->file && !strlen(urls->file)) {
259 free(urls->file);
260 urls->file = NULL;
261 if (!incomplete) {
262 nfs_destroy_url(urls);
263 rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
264 return NULL;
265 }
266 }
267
268 if (urls->server && strlen(urls->server) <= 1) {
269 free(urls->server);
270 urls->server = NULL;
271 }
272
273 while (flagsp != NULL && *(flagsp+1) != 0) {
274 strp = flagsp + 1;
275 flagsp = strchr(strp, '&');
276 if (flagsp) {
277 *flagsp = 0;
278 }
279 strp2 = strchr(strp, '=');
280 if (strp2) {
281 *strp2 = 0;
282 strp2++;
1c8b4547
PL		 283 if (!strncmp(strp, "tcp-syncnt", 10)) {
284 rpc_set_tcp_syncnt(nfs->rpc, atoi(strp2));
9126c9c0
PL		 285 } else if (!strncmp(strp, "uid", 3)) {
286 rpc_set_uid(nfs->rpc, atoi(strp2));
287 } else if (!strncmp(strp, "gid", 3)) {
288 rpc_set_gid(nfs->rpc, atoi(strp2));
1c8b4547 289 }
d2ec73c7
PL		 290 }
291 }
292
293 return urls;
294}
295
296struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url)
297{
298 return nfs_parse_url(nfs, url, 0, 0);
299}
300
301struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url)
302{
303 return nfs_parse_url(nfs, url, 1, 0);
304}
305
306struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url)
307{
308 return nfs_parse_url(nfs, url, 0, 1);
309}
310
311
312void nfs_destroy_url(struct nfs_url *url)
313{
314 if (url) {
315 free(url->server);
316 free(url->path);
317 free(url->file);
318 }
319 free(url);
320}
321
84004dbf
RS		 322struct nfs_context *nfs_init_context(void)
323{
324 struct nfs_context *nfs;
325
326 nfs = malloc(sizeof(struct nfs_context));
327 if (nfs == NULL) {
84004dbf
RS		 328 return NULL;
329 }
330 nfs->rpc = rpc_init_context();
331 if (nfs->rpc == NULL) {
84004dbf
RS		 332 free(nfs);
333 return NULL;
334 }
335
b077fdeb
RS		 336 nfs->server = NULL;
337 nfs->export = NULL;
338
963c2f83
RS		 339 nfs->rootfh.data.data_len = 0;
340 nfs->rootfh.data.data_val = NULL;
341
84004dbf
RS		 342 return nfs;
343}
344
345void nfs_destroy_context(struct nfs_context *nfs)
346{
347 rpc_destroy_context(nfs->rpc);
348 nfs->rpc = NULL;
349
350 if (nfs->server) {
351 free(nfs->server);
352 nfs->server = NULL;
353 }
354
355 if (nfs->export) {
356 free(nfs->export);
357 nfs->export = NULL;
358 }
359
360 if (nfs->rootfh.data.data_val != NULL) {
361 free(nfs->rootfh.data.data_val);
362 nfs->rootfh.data.data_val = NULL;
363 }
364
365 free(nfs);
366}
367
8733f38d
RS		 368struct rpc_cb_data {
369 char *server;
370 uint32_t program;
371 uint32_t version;
372
373 rpc_cb cb;
374 void *private_data;
375};
376
377void free_rpc_cb_data(struct rpc_cb_data *data)
378{
379 free(data->server);
380 data->server = NULL;
381 free(data);
382}
383
384static void rpc_connect_program_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
385{
386 struct rpc_cb_data *data = private_data;
387
388 assert(rpc->magic == RPC_CONTEXT_MAGIC);
389
390 /* Dont want any more callbacks even if the socket is closed */
391 rpc->connect_cb = NULL;
392
393 if (status == RPC_STATUS_ERROR) {
394 data->cb(rpc, status, command_data, data->private_data);
395 free_rpc_cb_data(data);
396 return;
397 }
398 if (status == RPC_STATUS_CANCEL) {
399 data->cb(rpc, status, "Command was cancelled", data->private_data);
400 free_rpc_cb_data(data);
401 return;
402 }
403
404 data->cb(rpc, status, NULL, data->private_data);
405 free_rpc_cb_data(data);
406}
407
408static void rpc_connect_program_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
409{
410 struct rpc_cb_data *data = private_data;
411 uint32_t rpc_port;
412
413 assert(rpc->magic == RPC_CONTEXT_MAGIC);
414
415 if (status == RPC_STATUS_ERROR) {
416 data->cb(rpc, status, command_data, data->private_data);
417 free_rpc_cb_data(data);
418 return;
419 }
420 if (status == RPC_STATUS_CANCEL) {
421 data->cb(rpc, status, "Command was cancelled", data->private_data);
422 free_rpc_cb_data(data);
423 return;
424 }
425
426 rpc_port = *(uint32_t *)command_data;
427 if (rpc_port == 0) {
428 rpc_set_error(rpc, "RPC error. Program is not available on %s", data->server);
429 data->cb(rpc, RPC_STATUS_ERROR, rpc_get_error(rpc), data->private_data);
430 free_rpc_cb_data(data);
431 return;
432 }
433
434 rpc_disconnect(rpc, "normal disconnect");
435 if (rpc_connect_async(rpc, data->server, rpc_port, rpc_connect_program_4_cb, data) != 0) {
436 data->cb(rpc, status, command_data, data->private_data);
437 free_rpc_cb_data(data);
438 return;
439 }
440}
441
442static void rpc_connect_program_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
443{
444 struct rpc_cb_data *data = private_data;
445
446 assert(rpc->magic == RPC_CONTEXT_MAGIC);
447
448 if (status == RPC_STATUS_ERROR) {
449 data->cb(rpc, status, command_data, data->private_data);
450 free_rpc_cb_data(data);
451 return;
452 }
453 if (status == RPC_STATUS_CANCEL) {
454 data->cb(rpc, status, "Command was cancelled", data->private_data);
455 free_rpc_cb_data(data);
456 return;
457 }
458
459 if (rpc_pmap_getport_async(rpc, data->program, data->version, IPPROTO_TCP, rpc_connect_program_3_cb, private_data) != 0) {
460 data->cb(rpc, status, command_data, data->private_data);
461 free_rpc_cb_data(data);
462 return;
463 }
464}
465
466static void rpc_connect_program_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
467{
468 struct rpc_cb_data *data = private_data;
469
470 assert(rpc->magic == RPC_CONTEXT_MAGIC);
471
472 /* Dont want any more callbacks even if the socket is closed */
473 rpc->connect_cb = NULL;
474
475 if (status == RPC_STATUS_ERROR) {
476 data->cb(rpc, status, command_data, data->private_data);
477 free_rpc_cb_data(data);
478 return;
479 }
480 if (status == RPC_STATUS_CANCEL) {
481 data->cb(rpc, status, "Command was cancelled", data->private_data);
482 free_rpc_cb_data(data);
483 return;
484 }
485
486 if (rpc_pmap_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
487 data->cb(rpc, status, command_data, data->private_data);
488 free_rpc_cb_data(data);
489 return;
490 }
491}
492
493int rpc_connect_program_async(struct rpc_context *rpc, char *server, int program, int version, rpc_cb cb, void *private_data)
494{
495 struct rpc_cb_data *data;
496
497 data = malloc(sizeof(struct rpc_cb_data));
498 if (data == NULL) {
499 return -1;
500 }
501 memset(data, 0, sizeof(struct rpc_cb_data));
502 data->server = strdup(server);
503 data->program = program;
504 data->version = version;
505
506 data->cb = cb;
507 data->private_data = private_data;
508
509 if (rpc_connect_async(rpc, server, 111, rpc_connect_program_1_cb, data) != 0) {
510 rpc_set_error(rpc, "Failed to start connection");
511 free_rpc_cb_data(data);
512 return -1;
513 }
514 return 0;
515}
516
84004dbf
RS		 517void free_nfs_cb_data(struct nfs_cb_data *data)
518{
519 if (data->saved_path != NULL) {
520 free(data->saved_path);
521 data->saved_path = NULL;
522 }
523
524 if (data->continue_data != NULL) {
525 data->free_continue_data(data->continue_data);
526 data->continue_data = NULL;
527 }
528
529 if (data->fh.data.data_val != NULL) {
530 free(data->fh.data.data_val);
531 data->fh.data.data_val = NULL;
532 }
533
921f877b
RS		 534 if (data->buffer != NULL) {
535 free(data->buffer);
536 data->buffer = NULL;
537 }
538
84004dbf
RS		 539 free(data);
540}
541
542
543
544
545
f3a75078 546static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 547{
548 struct nfs_cb_data *data = private_data;
549 struct nfs_context *nfs = data->nfs;
550
f3a75078
RS		 551 assert(rpc->magic == RPC_CONTEXT_MAGIC);
552
84004dbf
RS		 553 if (status == RPC_STATUS_ERROR) {
554 data->cb(-EFAULT, nfs, command_data, data->private_data);
555 free_nfs_cb_data(data);
556 return;
557 }
558 if (status == RPC_STATUS_CANCEL) {
559 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
560 free_nfs_cb_data(data);
561 return;
562 }
563
564 data->cb(0, nfs, NULL, data->private_data);
565 free_nfs_cb_data(data);
566}
567
17ef62fa 568static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 569{
570 struct nfs_cb_data *data = private_data;
571 struct nfs_context *nfs = data->nfs;
17ef62fa 572 FSINFO3res *res = command_data;
84004dbf 573
f3a75078
RS		 574 assert(rpc->magic == RPC_CONTEXT_MAGIC);
575
84004dbf
RS		 576 if (status == RPC_STATUS_ERROR) {
577 data->cb(-EFAULT, nfs, command_data, data->private_data);
578 free_nfs_cb_data(data);
579 return;
580 }
581 if (status == RPC_STATUS_CANCEL) {
582 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
583 free_nfs_cb_data(data);
584 return;
585 }
586
17ef62fa
RS		 587 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
588 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
84004dbf 589
17ef62fa 590 if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
84004dbf
RS		 591 data->cb(-ENOMEM, nfs, command_data, data->private_data);
592 free_nfs_cb_data(data);
593 return;
594 }
595}
596
17ef62fa
RS		 597static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
598{
599 struct nfs_cb_data *data = private_data;
600 struct nfs_context *nfs = data->nfs;
601
f3a75078
RS		 602 assert(rpc->magic == RPC_CONTEXT_MAGIC);
603
17ef62fa
RS		 604 if (status == RPC_STATUS_ERROR) {
605 data->cb(-EFAULT, nfs, command_data, data->private_data);
606 free_nfs_cb_data(data);
607 return;
608 }
609 if (status == RPC_STATUS_CANCEL) {
610 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
611 free_nfs_cb_data(data);
612 return;
613 }
614
615 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
616 data->cb(-ENOMEM, nfs, command_data, data->private_data);
617 free_nfs_cb_data(data);
618 return;
619 }
620}
621
622
84004dbf
RS		 623static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
624{
625 struct nfs_cb_data *data = private_data;
626 struct nfs_context *nfs = data->nfs;
627
f3a75078
RS		 628 assert(rpc->magic == RPC_CONTEXT_MAGIC);
629
14a062eb
RS		 630 /* Dont want any more callbacks even if the socket is closed */
631 rpc->connect_cb = NULL;
632
84004dbf
RS		 633 if (status == RPC_STATUS_ERROR) {
634 data->cb(-EFAULT, nfs, command_data, data->private_data);
635 free_nfs_cb_data(data);
636 return;
637 }
638 if (status == RPC_STATUS_CANCEL) {
639 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
640 free_nfs_cb_data(data);
641 return;
642 }
643
644 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
645 data->cb(-ENOMEM, nfs, command_data, data->private_data);
646 free_nfs_cb_data(data);
647 return;
648 }
649}
650
651
652static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
653{
654 struct nfs_cb_data *data = private_data;
655 struct nfs_context *nfs = data->nfs;
656 mountres3 *res;
657
f3a75078
RS		 658 assert(rpc->magic == RPC_CONTEXT_MAGIC);
659
84004dbf
RS		 660 if (status == RPC_STATUS_ERROR) {
661 data->cb(-EFAULT, nfs, command_data, data->private_data);
662 free_nfs_cb_data(data);
663 return;
664 }
665 if (status == RPC_STATUS_CANCEL) {
666 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
667 free_nfs_cb_data(data);
668 return;
669 }
670
671 res = command_data;
672 if (res->fhs_status != MNT3_OK) {
673 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));
674 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
675 free_nfs_cb_data(data);
676 return;
677 }
678
679 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
680 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
681 if (nfs->rootfh.data.data_val == NULL) {
682 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
683 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
684 free_nfs_cb_data(data);
685 return;
686 }
687 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
688
689 rpc_disconnect(rpc, "normal disconnect");
690 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
691 data->cb(-ENOMEM, nfs, command_data, data->private_data);
692 free_nfs_cb_data(data);
693 return;
694 }
1744ef90
RS		 695 /* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
696 rpc_set_autoreconnect(rpc);
84004dbf
RS		 697}
698
699
700static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
701{
702 struct nfs_cb_data *data = private_data;
703 struct nfs_context *nfs = data->nfs;
704
f3a75078
RS		 705 assert(rpc->magic == RPC_CONTEXT_MAGIC);
706
84004dbf
RS		 707 if (status == RPC_STATUS_ERROR) {
708 data->cb(-EFAULT, nfs, command_data, data->private_data);
709 free_nfs_cb_data(data);
710 return;
711 }
712 if (status == RPC_STATUS_CANCEL) {
713 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
714 free_nfs_cb_data(data);
715 return;
716 }
717
718 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
719 data->cb(-ENOMEM, nfs, command_data, data->private_data);
720 free_nfs_cb_data(data);
721 return;
722 }
723}
724
725static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
726{
727 struct nfs_cb_data *data = private_data;
728 struct nfs_context *nfs = data->nfs;
729
f3a75078
RS		 730 assert(rpc->magic == RPC_CONTEXT_MAGIC);
731
14a062eb
RS		 732 /* Dont want any more callbacks even if the socket is closed */
733 rpc->connect_cb = NULL;
734
84004dbf
RS		 735 if (status == RPC_STATUS_ERROR) {
736 data->cb(-EFAULT, nfs, command_data, data->private_data);
737 free_nfs_cb_data(data);
738 return;
739 }
740 if (status == RPC_STATUS_CANCEL) {
741 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
742 free_nfs_cb_data(data);
743 return;
744 }
745
746 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
747 data->cb(-ENOMEM, nfs, command_data, data->private_data);
748 free_nfs_cb_data(data);
749 return;
750 }
751}
752
753static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
754{
755 struct nfs_cb_data *data = private_data;
756 struct nfs_context *nfs = data->nfs;
757 uint32_t mount_port;
758
f3a75078
RS		 759 assert(rpc->magic == RPC_CONTEXT_MAGIC);
760
84004dbf
RS		 761 if (status == RPC_STATUS_ERROR) {
762 data->cb(-EFAULT, nfs, command_data, data->private_data);
763 free_nfs_cb_data(data);
764 return;
765 }
766 if (status == RPC_STATUS_CANCEL) {
767 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
768 free_nfs_cb_data(data);
769 return;
770 }
771
772 mount_port = *(uint32_t *)command_data;
773 if (mount_port == 0) {
774 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
775 data->cb(-ENOENT, nfs, command_data, data->private_data);
776 free_nfs_cb_data(data);
777 return;
778 }
779
780 rpc_disconnect(rpc, "normal disconnect");
781 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
782 data->cb(-ENOMEM, nfs, command_data, data->private_data);
783 free_nfs_cb_data(data);
784 return;
785 }
786}
787
788
789static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
790{
791 struct nfs_cb_data *data = private_data;
792 struct nfs_context *nfs = data->nfs;
793
f3a75078
RS		 794 assert(rpc->magic == RPC_CONTEXT_MAGIC);
795
84004dbf
RS		 796 if (status == RPC_STATUS_ERROR) {
797 data->cb(-EFAULT, nfs, command_data, data->private_data);
798 free_nfs_cb_data(data);
799 return;
800 }
801 if (status == RPC_STATUS_CANCEL) {
802 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
803 free_nfs_cb_data(data);
804 return;
805 }
806
5c6b1176 807 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, nfs_mount_3_cb, private_data) != 0) {
84004dbf
RS		 808 data->cb(-ENOMEM, nfs, command_data, data->private_data);
809 free_nfs_cb_data(data);
810 return;
811 }
812}
813
814static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
815{
816 struct nfs_cb_data *data = private_data;
817 struct nfs_context *nfs = data->nfs;
818
f3a75078
RS		 819 assert(rpc->magic == RPC_CONTEXT_MAGIC);
820
14a062eb
RS		 821 /* Dont want any more callbacks even if the socket is closed */
822 rpc->connect_cb = NULL;
823
84004dbf
RS		 824 if (status == RPC_STATUS_ERROR) {
825 data->cb(-EFAULT, nfs, command_data, data->private_data);
826 free_nfs_cb_data(data);
827 return;
828 }
829 if (status == RPC_STATUS_CANCEL) {
830 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
831 free_nfs_cb_data(data);
832 return;
833 }
834
835 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
836 data->cb(-ENOMEM, nfs, command_data, data->private_data);
837 free_nfs_cb_data(data);
838 return;
839 }
840}
841
842/*
843 * Async call for mounting an nfs share and geting the root filehandle
844 */
845int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
846{
847 struct nfs_cb_data *data;
b077fdeb 848 char *new_server, *new_export;
84004dbf
RS		 849
850 data = malloc(sizeof(struct nfs_cb_data));
851 if (data == NULL) {
cbbf9d3e 852 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
84004dbf
RS		 853 return -1;
854 }
ea98629a 855 memset(data, 0, sizeof(struct nfs_cb_data));
b077fdeb
RS		 856 new_server = strdup(server);
857 new_export = strdup(export);
858 if (nfs->server != NULL) {
859 free(nfs->server);
b077fdeb
RS		 860 }
861 nfs->server = new_server;
862 if (nfs->export != NULL) {
863 free(nfs->export);
b077fdeb
RS		 864 }
865 nfs->export = new_export;
84004dbf
RS		 866 data->nfs = nfs;
867 data->cb = cb;
868 data->private_data = private_data;
869
870 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
cbbf9d3e 871 rpc_set_error(nfs->rpc, "Failed to start connection");
84004dbf 872 free_nfs_cb_data(data);
cbbf9d3e 873 return -1;
84004dbf
RS		 874 }
875
876 return 0;
877}
878
879
880
881/*
882 * Functions to first look up a path, component by component, and then finally call a specific function once
883 * the filehandle for the final component is found.
884 */
f3a75078 885static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 886{
887 struct nfs_cb_data *data = private_data;
888 struct nfs_context *nfs = data->nfs;
889 LOOKUP3res *res;
890
f3a75078
RS		 891 assert(rpc->magic == RPC_CONTEXT_MAGIC);
892
84004dbf
RS		 893 if (status == RPC_STATUS_ERROR) {
894 data->cb(-EFAULT, nfs, command_data, data->private_data);
895 free_nfs_cb_data(data);
896 return;
897 }
898 if (status == RPC_STATUS_CANCEL) {
899 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
900 free_nfs_cb_data(data);
901 return;
902 }
903
904 res = command_data;
905 if (res->status != NFS3_OK) {
906 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));
907 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
908 free_nfs_cb_data(data);
909 return;
910 }
911
912 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
913 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
914 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
915 free_nfs_cb_data(data);
916 return;
917 }
918}
919
920static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
921{
922 char *path, *str;
923
924 while (*data->path == '/') {
925 data->path++;
926 }
927
928 path = data->path;
93e9306f 929 str = strchr(path, '/');
84004dbf
RS		 930 if (str != NULL) {
931 *str = 0;
932 data->path = str+1;
933 } else {
934 while (*data->path != 0) {
935 data->path++;
936 }
937 }
938
939 if (*path == 0) {
940 data->fh.data.data_len = fh->data.data_len;
941 data->fh.data.data_val = malloc(data->fh.data.data_len);
942 if (data->fh.data.data_val == NULL) {
943 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
944 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
945 free_nfs_cb_data(data);
946 return -1;
947 }
948 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
949 data->continue_cb(nfs, data);
950 return 0;
951 }
952
953 if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
954 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
955 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
956 free_nfs_cb_data(data);
957 return -1;
958 }
959 return 0;
960}
961
962static int nfs_lookuppath_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data, continue_func continue_cb, void *continue_data, void (*free_continue_data)(void *), int continue_int)
963{
964 struct nfs_cb_data *data;
965
73f4ae7c
RS		 966 if (path[0] != 0 && path[0] != '/') {
967 rpc_set_error(nfs->rpc, "Pathname is not absolute %s", path);
84004dbf
RS		 968 return -1;
969 }
970
971 data = malloc(sizeof(struct nfs_cb_data));
972 if (data == NULL) {
973 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
cbbf9d3e 974 return -1;
84004dbf 975 }
ea98629a 976 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 977 data->nfs = nfs;
978 data->cb = cb;
979 data->continue_cb = continue_cb;
980 data->continue_data = continue_data;
981 data->free_continue_data = free_continue_data;
982 data->continue_int = continue_int;
983 data->private_data = private_data;
984 data->saved_path = strdup(path);
985 if (data->saved_path == NULL) {
986 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
84004dbf 987 free_nfs_cb_data(data);
cbbf9d3e 988 return -1;
84004dbf
RS		 989 }
990 data->path = data->saved_path;
991
992 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
84004dbf
RS		 993 /* return 0 here since the callback will be invoked if there is a failure */
994 return 0;
995 }
996 return 0;
997}
998
999
1000
1001
1002
1003/*
1004 * Async stat()
1005 */
f3a75078 1006static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1007{
1008 GETATTR3res *res;
1009 struct nfs_cb_data *data = private_data;
1010 struct nfs_context *nfs = data->nfs;
1011 struct stat st;
1012
f3a75078
RS		 1013 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1014
84004dbf
RS		 1015 if (status == RPC_STATUS_ERROR) {
1016 data->cb(-EFAULT, nfs, command_data, data->private_data);
1017 free_nfs_cb_data(data);
1018 return;
1019 }
1020 if (status == RPC_STATUS_CANCEL) {
1021 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1022 free_nfs_cb_data(data);
1023 return;
1024 }
1025
1026 res = command_data;
1027 if (res->status != NFS3_OK) {
1028 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));
1029 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1030 free_nfs_cb_data(data);
1031 return;
1032 }
1033
1034 st.st_dev = -1;
1035 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
1036 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
e8cab72a
RS		 1037 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
1038 st.st_mode |= S_IFDIR ;
1039 }
d7ec001f
RS		 1040 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
1041 st.st_mode |= S_IFREG ;
1042 }
84004dbf
RS		 1043 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
1044 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
1045 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
1046 st.st_rdev = 0;
1047 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
a8a1b858 1048#ifndef WIN32
84004dbf
RS		 1049 st.st_blksize = 4096;
1050 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
a8a1b858 1051#endif//WIN32
84004dbf
RS		 1052 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
1053 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
1054 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
1055
1056 data->cb(0, nfs, &st, data->private_data);
1057 free_nfs_cb_data(data);
1058}
1059
1060static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1061{
1062 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
1063 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1064 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1065 free_nfs_cb_data(data);
1066 return -1;
1067 }
1068 return 0;
1069}
1070
1071int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1072{
1073 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
cbbf9d3e 1074 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 1075 return -1;
1076 }
1077
1078 return 0;
1079}
1080
1081
1082
1083
1084
1085/*
1086 * Async open()
1087 */
f3a75078 1088static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1089{
1090 ACCESS3res *res;
1091 struct nfs_cb_data *data = private_data;
1092 struct nfs_context *nfs = data->nfs;
1093 struct nfsfh *nfsfh;
1094 unsigned int nfsmode = 0;
1095
f3a75078
RS		 1096 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1097
84004dbf
RS		 1098 if (status == RPC_STATUS_ERROR) {
1099 data->cb(-EFAULT, nfs, command_data, data->private_data);
1100 free_nfs_cb_data(data);
1101 return;
1102 }
1103 if (status == RPC_STATUS_CANCEL) {
1104 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1105 free_nfs_cb_data(data);
1106 return;
1107 }
1108
1109 res = command_data;
1110 if (res->status != NFS3_OK) {
1111 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));
1112 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1113 free_nfs_cb_data(data);
1114 return;
1115 }
1116
1117 if (data->continue_int & O_WRONLY) {
1118 nfsmode |= ACCESS3_MODIFY;
1119 }
1120 if (data->continue_int & O_RDWR) {
1121 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1122 }
1123 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1124 nfsmode |= ACCESS3_READ;
1125 }
1126
1127
1128 if (res->ACCESS3res_u.resok.access != nfsmode) {
1129 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
1130 nfsmode&ACCESS3_READ?'r':'-',
1131 nfsmode&ACCESS3_MODIFY?'w':'-',
1132 nfsmode&ACCESS3_EXECUTE?'x':'-',
1133 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
1134 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
1135 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
1136 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
1137 free_nfs_cb_data(data);
1138 return;
1139 }
1140
1141 nfsfh = malloc(sizeof(struct nfsfh));
1142 if (nfsfh == NULL) {
1143 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1144 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1145 free_nfs_cb_data(data);
1146 return;
1147 }
ea98629a 1148 memset(nfsfh, 0, sizeof(struct nfsfh));
84004dbf
RS		 1149
1150 if (data->continue_int & O_SYNC) {
1151 nfsfh->is_sync = 1;
1152 }
1153
1154 /* steal the filehandle */
1155 nfsfh->fh.data.data_len = data->fh.data.data_len;
1156 nfsfh->fh.data.data_val = data->fh.data.data_val;
1157 data->fh.data.data_val = NULL;
1158
1159 data->cb(0, nfs, nfsfh, data->private_data);
1160 free_nfs_cb_data(data);
1161}
1162
1163static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1164{
1165 int nfsmode = 0;
1166
1167 if (data->continue_int & O_WRONLY) {
1168 nfsmode |= ACCESS3_MODIFY;
1169 }
1170 if (data->continue_int & O_RDWR) {
1171 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
1172 }
1173 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
1174 nfsmode |= ACCESS3_READ;
1175 }
1176
1177 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
1178 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
1179 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1180 free_nfs_cb_data(data);
1181 return -1;
1182 }
1183 return 0;
1184}
1185
1186int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1187{
1188 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
cbbf9d3e
RS		 1189 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1190 return -1;
84004dbf
RS		 1191 }
1192
1193 return 0;
1194}
1195
1196
1197
1198
1199
1200/*
1201 * Async pread()
1202 */
f3a75078 1203static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1204{
1205 struct nfs_cb_data *data = private_data;
1206 struct nfs_context *nfs = data->nfs;
1207 READ3res *res;
1208
f3a75078
RS		 1209 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1210
84004dbf
RS		 1211 if (status == RPC_STATUS_ERROR) {
1212 data->cb(-EFAULT, nfs, command_data, data->private_data);
1213 free_nfs_cb_data(data);
1214 return;
1215 }
1216 if (status == RPC_STATUS_CANCEL) {
1217 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1218 free_nfs_cb_data(data);
1219 return;
1220 }
1221
1222 res = command_data;
1223 if (res->status != NFS3_OK) {
1224 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1225 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1226 free_nfs_cb_data(data);
1227 return;
1228 }
1229
1230 data->nfsfh->offset += res->READ3res_u.resok.count;
1231 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
1232 free_nfs_cb_data(data);
1233}
1234
f3a75078 1235static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
921f877b
RS		 1236{
1237 struct nfs_mcb_data *mdata = private_data;
1238 struct nfs_cb_data *data = mdata->data;
1239 struct nfs_context *nfs = data->nfs;
1240 READ3res *res;
1241
f3a75078
RS		 1242 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1243
921f877b
RS		 1244 data->num_calls--;
1245
1246 if (status == RPC_STATUS_ERROR) {
1247 /* flag the failure but do not invoke callback until we have received all responses */
1248 data->error = 1;
1249 }
1250 if (status == RPC_STATUS_CANCEL) {
1251 /* flag the cancellation but do not invoke callback until we have received all responses */
1252 data->cancel = 1;
1253 }
1254
1255 /* reassemble the data into the buffer */
1256 if (status == RPC_STATUS_SUCCESS) {
1257 res = command_data;
1258 if (res->status != NFS3_OK) {
1259 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1260 data->error = 1;
e4a5ba42
RS		 1261 } else {
1262 if (res->READ3res_u.resok.count > 0) {
1263 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
1264 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
1265 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
1266 }
921f877b
RS		 1267 }
1268 }
1269 }
1270
1271 if (data->num_calls > 0) {
1272 /* still waiting for more replies */
1273 free(mdata);
1274 return;
1275 }
1276
921f877b
RS		 1277 if (data->error != 0) {
1278 data->cb(-EFAULT, nfs, command_data, data->private_data);
1279 free_nfs_cb_data(data);
1280 free(mdata);
1281 return;
1282 }
1283 if (data->cancel != 0) {
1284 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1285 free_nfs_cb_data(data);
1286 free(mdata);
1287 return;
1288 }
1289
1290 data->nfsfh->offset = data->max_offset;
7ed9d87a
RS		 1291 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
1292
921f877b
RS		 1293 free_nfs_cb_data(data);
1294 free(mdata);
1295}
1296
183451cf 1297int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
84004dbf
RS		 1298{
1299 struct nfs_cb_data *data;
1300
1301 data = malloc(sizeof(struct nfs_cb_data));
1302 if (data == NULL) {
1303 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1304 return -1;
1305 }
ea98629a 1306 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 1307 data->nfs = nfs;
1308 data->cb = cb;
1309 data->private_data = private_data;
1310 data->nfsfh = nfsfh;
1311
1312 nfsfh->offset = offset;
921f877b
RS		 1313
1314 if (count <= nfs_get_readmax(nfs)) {
1315 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
1316 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1317 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1318 free_nfs_cb_data(data);
1319 return -1;
1320 }
1321 return 0;
1322 }
1323
1324 /* trying to read more than maximum server read size, we has to chop it up into smaller
1325 * reads and collect into a reassembly buffer.
cd67ec7d 1326 * we send all reads in parallel so that performance is still good.
921f877b 1327 */
7ed9d87a 1328 data->max_offset = offset;
921f877b
RS		 1329 data->start_offset = offset;
1330
1331 data->buffer = malloc(count);
1332 if (data->buffer == NULL) {
1333 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
84004dbf
RS		 1334 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1335 free_nfs_cb_data(data);
1336 return -1;
1337 }
921f877b
RS		 1338
1339 while (count > 0) {
183451cf 1340 uint64_t readcount = count;
921f877b
RS		 1341 struct nfs_mcb_data *mdata;
1342
1343 if (readcount > nfs_get_readmax(nfs)) {
1344 readcount = nfs_get_readmax(nfs);
1345 }
1346
1347 mdata = malloc(sizeof(struct nfs_mcb_data));
1348 if (mdata == NULL) {
1349 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
921f877b
RS		 1350 return -1;
1351 }
ea98629a 1352 memset(mdata, 0, sizeof(struct nfs_mcb_data));
921f877b
RS		 1353 mdata->data = data;
1354 mdata->offset = offset;
1355 mdata->count = readcount;
921f877b
RS		 1356 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
1357 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
1358 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1359 free(mdata);
1360 return -1;
1361 }
1362
1363 count -= readcount;
1364 offset += readcount;
1365 data->num_calls++;
1366 }
1367
1368 return 0;
84004dbf
RS		 1369}
1370
1371/*
1372 * Async read()
1373 */
183451cf 1374int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
84004dbf
RS		 1375{
1376 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
1377}
1378
1379
1380
1381/*
1382 * Async pwrite()
1383 */
f3a75078 1384static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1385{
1386 struct nfs_cb_data *data = private_data;
1387 struct nfs_context *nfs = data->nfs;
1388 WRITE3res *res;
1389
f3a75078
RS		 1390 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1391
84004dbf
RS		 1392 if (status == RPC_STATUS_ERROR) {
1393 data->cb(-EFAULT, nfs, command_data, data->private_data);
1394 free_nfs_cb_data(data);
1395 return;
1396 }
1397 if (status == RPC_STATUS_CANCEL) {
1398 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1399 free_nfs_cb_data(data);
1400 return;
1401 }
1402
1403 res = command_data;
1404 if (res->status != NFS3_OK) {
1405 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1406 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1407 free_nfs_cb_data(data);
1408 return;
1409 }
1410
1411 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1412 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1413 free_nfs_cb_data(data);
1414}
1415
f3a75078 1416static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
18c27b73
RS		 1417{
1418 struct nfs_mcb_data *mdata = private_data;
1419 struct nfs_cb_data *data = mdata->data;
1420 struct nfs_context *nfs = data->nfs;
1421 WRITE3res *res;
1422
f3a75078
RS		 1423 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1424
18c27b73
RS		 1425 data->num_calls--;
1426
1427 if (status == RPC_STATUS_ERROR) {
1428 /* flag the failure but do not invoke callback until we have received all responses */
1429 data->error = 1;
1430 }
1431 if (status == RPC_STATUS_CANCEL) {
1432 /* flag the cancellation but do not invoke callback until we have received all responses */
1433 data->cancel = 1;
1434 }
1435
1436 if (status == RPC_STATUS_SUCCESS) {
1437 res = command_data;
1438 if (res->status != NFS3_OK) {
1439 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1440 data->error = 1;
1441 } else {
1442 if (res->WRITE3res_u.resok.count > 0) {
1443 if ((unsigned)data->max_offset < mdata->offset + res->WRITE3res_u.resok.count) {
1444 data->max_offset = mdata->offset + res->WRITE3res_u.resok.count;
1445 }
1446 }
1447 }
1448 }
1449
1450 if (data->num_calls > 0) {
1451 /* still waiting for more replies */
1452 free(mdata);
1453 return;
1454 }
1455
1456 if (data->error != 0) {
1457 data->cb(-EFAULT, nfs, command_data, data->private_data);
1458 free_nfs_cb_data(data);
1459 free(mdata);
1460 return;
1461 }
1462 if (data->cancel != 0) {
1463 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1464 free_nfs_cb_data(data);
1465 free(mdata);
1466 return;
1467 }
1468
1469 data->nfsfh->offset = data->max_offset;
1470 data->cb(data->max_offset - data->start_offset, nfs, NULL, data->private_data);
1471
1472 free_nfs_cb_data(data);
1473 free(mdata);
1474}
1475
1476
183451cf 1477int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf, nfs_cb cb, void *private_data)
84004dbf
RS		 1478{
1479 struct nfs_cb_data *data;
1480
1481 data = malloc(sizeof(struct nfs_cb_data));
1482 if (data == NULL) {
1483 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1484 return -1;
1485 }
ea98629a 1486 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 1487 data->nfs = nfs;
1488 data->cb = cb;
1489 data->private_data = private_data;
1490 data->nfsfh = nfsfh;
1491
1492 nfsfh->offset = offset;
18c27b73
RS		 1493
1494 if (count <= nfs_get_writemax(nfs)) {
1495 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
1496 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1497 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1498 free_nfs_cb_data(data);
1499 return -1;
1500 }
1501 return 0;
84004dbf 1502 }
18c27b73
RS		 1503
1504 /* trying to write more than maximum server write size, we has to chop it up into smaller
1505 * chunks.
cd67ec7d 1506 * we send all writes in parallel so that performance is still good.
18c27b73
RS		 1507 */
1508 data->max_offset = offset;
1509 data->start_offset = offset;
1510
1511 while (count > 0) {
183451cf 1512 uint64_t writecount = count;
18c27b73
RS		 1513 struct nfs_mcb_data *mdata;
1514
1515 if (writecount > nfs_get_writemax(nfs)) {
1516 writecount = nfs_get_writemax(nfs);
1517 }
1518
1519 mdata = malloc(sizeof(struct nfs_mcb_data));
1520 if (mdata == NULL) {
1521 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
1522 return -1;
1523 }
1524 memset(mdata, 0, sizeof(struct nfs_mcb_data));
1525 mdata->data = data;
1526 mdata->offset = offset;
1527 mdata->count = writecount;
1528
1529 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_mcb, &nfsfh->fh, &buf[offset - data->start_offset], offset, writecount, nfsfh->is_sync?FILE_SYNC:UNSTABLE, mdata) != 0) {
1530 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1531 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1532 free(mdata);
1533 return -1;
1534 }
1535
1536 count -= writecount;
1537 offset += writecount;
1538 data->num_calls++;
1539 }
1540
84004dbf
RS		 1541 return 0;
1542}
1543
1544/*
1545 * Async write()
1546 */
183451cf 1547int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
84004dbf
RS		 1548{
1549 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1550}
1551
1552
1553
1554
1555/*
1556 * close
1557 */
1558
1559int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1560{
1561 if (nfsfh->fh.data.data_val != NULL){
1562 free(nfsfh->fh.data.data_val);
1563 nfsfh->fh.data.data_val = NULL;
1564 }
1565 free(nfsfh);
1566
1567 cb(0, nfs, NULL, private_data);
1568 return 0;
1569};
1570
1571
1572
1573
1574
1575/*
1576 * Async fstat()
1577 */
1578int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1579{
1580 struct nfs_cb_data *data;
1581
1582 data = malloc(sizeof(struct nfs_cb_data));
1583 if (data == NULL) {
1584 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1585 return -1;
1586 }
ea98629a 1587 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 1588 data->nfs = nfs;
1589 data->cb = cb;
1590 data->private_data = private_data;
1591
1592 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
1593 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1594 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1595 free_nfs_cb_data(data);
1596 return -1;
1597 }
1598 return 0;
1599}
1600
1601
1602
1603/*
1604 * Async fsync()
1605 */
f3a75078 1606static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1607{
1608 struct nfs_cb_data *data = private_data;
1609 struct nfs_context *nfs = data->nfs;
1610 COMMIT3res *res;
1611
f3a75078
RS		 1612 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1613
84004dbf
RS		 1614 if (status == RPC_STATUS_ERROR) {
1615 data->cb(-EFAULT, nfs, command_data, data->private_data);
1616 free_nfs_cb_data(data);
1617 return;
1618 }
1619 if (status == RPC_STATUS_CANCEL) {
1620 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1621 free_nfs_cb_data(data);
1622 return;
1623 }
1624
1625 res = command_data;
1626 if (res->status != NFS3_OK) {
1627 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1628 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1629 free_nfs_cb_data(data);
1630 return;
1631 }
1632
1633 data->cb(0, nfs, NULL, data->private_data);
1634 free_nfs_cb_data(data);
1635}
1636
1637int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1638{
1639 struct nfs_cb_data *data;
1640
1641 data = malloc(sizeof(struct nfs_cb_data));
1642 if (data == NULL) {
1643 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1644 return -1;
1645 }
ea98629a 1646 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 1647 data->nfs = nfs;
1648 data->cb = cb;
1649 data->private_data = private_data;
1650
1651 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1652 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1653 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1654 free_nfs_cb_data(data);
1655 return -1;
1656 }
1657 return 0;
1658}
1659
1660
1661
1662
1663/*
1664 * Async ftruncate()
1665 */
f3a75078 1666static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1667{
1668 struct nfs_cb_data *data = private_data;
1669 struct nfs_context *nfs = data->nfs;
1670 SETATTR3res *res;
1671
f3a75078
RS		 1672 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1673
84004dbf
RS		 1674 if (status == RPC_STATUS_ERROR) {
1675 data->cb(-EFAULT, nfs, command_data, data->private_data);
1676 free_nfs_cb_data(data);
1677 return;
1678 }
1679 if (status == RPC_STATUS_CANCEL) {
1680 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1681 free_nfs_cb_data(data);
1682 return;
1683 }
1684
1685 res = command_data;
1686 if (res->status != NFS3_OK) {
1687 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1688 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1689 free_nfs_cb_data(data);
1690 return;
1691 }
1692
1693 data->cb(0, nfs, NULL, data->private_data);
1694 free_nfs_cb_data(data);
1695}
1696
183451cf 1697int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
84004dbf
RS		 1698{
1699 struct nfs_cb_data *data;
1700 SETATTR3args args;
1701
1702 data = malloc(sizeof(struct nfs_cb_data));
1703 if (data == NULL) {
1704 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1705 return -1;
1706 }
ea98629a 1707 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 1708 data->nfs = nfs;
1709 data->cb = cb;
1710 data->private_data = private_data;
1711
ea98629a 1712 memset(&args, 0, sizeof(SETATTR3args));
84004dbf
RS		 1713 args.object.data.data_len = nfsfh->fh.data.data_len;
1714 args.object.data.data_val = nfsfh->fh.data.data_val;
1715 args.new_attributes.size.set_it = 1;
1716 args.new_attributes.size.set_size3_u.size = length;
1717
1718 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1719 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1720 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1721 free_nfs_cb_data(data);
1722 return -1;
1723 }
1724 return 0;
1725}
1726
1727
1728/*
1729 * Async truncate()
1730 */
1731static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1732{
183451cf 1733 uint64_t offset = data->continue_int;
84004dbf
RS		 1734 struct nfsfh nfsfh;
1735
1736 nfsfh.fh.data.data_val = data->fh.data.data_val;
1737 nfsfh.fh.data.data_len = data->fh.data.data_len;
1738
1739 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1740 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1741 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1742 free_nfs_cb_data(data);
1743 return -1;
1744 }
1745 free_nfs_cb_data(data);
1746 return 0;
1747}
1748
183451cf 1749int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
84004dbf 1750{
183451cf 1751 uint64_t offset;
84004dbf
RS		 1752
1753 offset = length;
1754
1755 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
cbbf9d3e
RS		 1756 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1757 return -1;
84004dbf
RS		 1758 }
1759
1760 return 0;
1761}
1762
1763
1764
1765
1766/*
1767 * Async mkdir()
1768 */
f3a75078 1769static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1770{
1771 MKDIR3res *res;
1772 struct nfs_cb_data *data = private_data;
1773 struct nfs_context *nfs = data->nfs;
1774 char *str = data->continue_data;
1775
f3a75078
RS		 1776 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1777
84004dbf
RS		 1778 str = &str[strlen(str) + 1];
1779
1780 if (status == RPC_STATUS_ERROR) {
1781 data->cb(-EFAULT, nfs, command_data, data->private_data);
1782 free_nfs_cb_data(data);
1783 return;
1784 }
1785 if (status == RPC_STATUS_CANCEL) {
1786 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1787 free_nfs_cb_data(data);
1788 return;
1789 }
1790
1791 res = command_data;
1792 if (res->status != NFS3_OK) {
1793 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));
1794 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1795 free_nfs_cb_data(data);
1796 return;
1797 }
1798
1799 data->cb(0, nfs, NULL, data->private_data);
1800 free_nfs_cb_data(data);
1801}
1802
1803static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1804{
1805 char *str = data->continue_data;
7edc9026
RS		 1806 MKDIR3args args;
1807
84004dbf
RS		 1808 str = &str[strlen(str) + 1];
1809
7edc9026
RS		 1810 memset(&args, 0, sizeof(MKDIR3args));
1811 args.where.dir.data.data_len = data->fh.data.data_len;
1812 args.where.dir.data.data_val = data->fh.data.data_val;
1813 args.where.name = str;
1814 args.attributes.mode.set_it = 1;
1815 args.attributes.mode.set_mode3_u.mode = 0755;
1816
1817 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
84004dbf
RS		 1818 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1819 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1820 free_nfs_cb_data(data);
1821 return -1;
1822 }
1823 return 0;
1824}
1825
1826int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1827{
1828 char *new_path;
1829 char *ptr;
1830
1831 new_path = strdup(path);
1832 if (new_path == NULL) {
cbbf9d3e 1833 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 1834 return -1;
1835 }
1836
93e9306f 1837 ptr = strrchr(new_path, '/');
84004dbf 1838 if (ptr == NULL) {
cbbf9d3e
RS		 1839 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1840 return -1;
84004dbf
RS		 1841 }
1842 *ptr = 0;
1843
1844 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1845 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
cbbf9d3e
RS		 1846 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1847 return -1;
84004dbf
RS		 1848 }
1849
1850 return 0;
1851}
1852
1853
1854
1855
1856
1857/*
1858 * Async rmdir()
1859 */
f3a75078 1860static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1861{
1862 RMDIR3res *res;
1863 struct nfs_cb_data *data = private_data;
1864 struct nfs_context *nfs = data->nfs;
1865 char *str = data->continue_data;
1866
f3a75078
RS		 1867 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1868
84004dbf
RS		 1869 str = &str[strlen(str) + 1];
1870
1871 if (status == RPC_STATUS_ERROR) {
1872 data->cb(-EFAULT, nfs, command_data, data->private_data);
1873 free_nfs_cb_data(data);
1874 return;
1875 }
1876 if (status == RPC_STATUS_CANCEL) {
1877 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1878 free_nfs_cb_data(data);
1879 return;
1880 }
1881
1882 res = command_data;
1883 if (res->status != NFS3_OK) {
1884 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));
1885 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1886 free_nfs_cb_data(data);
1887 return;
1888 }
1889
1890 data->cb(0, nfs, NULL, data->private_data);
1891 free_nfs_cb_data(data);
1892}
1893
1894static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1895{
1896 char *str = data->continue_data;
1897
1898 str = &str[strlen(str) + 1];
1899
1900 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1901 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1902 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1903 free_nfs_cb_data(data);
1904 return -1;
1905 }
1906 return 0;
1907}
1908
1909int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1910{
1911 char *new_path;
1912 char *ptr;
1913
1914 new_path = strdup(path);
1915 if (new_path == NULL) {
cbbf9d3e 1916 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 1917 return -1;
1918 }
1919
93e9306f 1920 ptr = strrchr(new_path, '/');
84004dbf 1921 if (ptr == NULL) {
cbbf9d3e
RS		 1922 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1923 return -1;
84004dbf
RS		 1924 }
1925 *ptr = 0;
1926
1927 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1928 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
cbbf9d3e
RS		 1929 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1930 return -1;
84004dbf
RS		 1931 }
1932
1933 return 0;
1934}
1935
1936
1937
1938
1939/*
1940 * Async creat()
1941 */
f3a75078 1942static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1943{
1944 LOOKUP3res *res;
1945 struct nfs_cb_data *data = private_data;
1946 struct nfs_context *nfs = data->nfs;
1947 struct nfsfh *nfsfh;
1948 char *str = data->continue_data;
1949
f3a75078
RS		 1950 assert(rpc->magic == RPC_CONTEXT_MAGIC);
1951
84004dbf
RS		 1952 if (status == RPC_STATUS_ERROR) {
1953 data->cb(-EFAULT, nfs, command_data, data->private_data);
1954 free_nfs_cb_data(data);
1955 return;
1956 }
1957 if (status == RPC_STATUS_CANCEL) {
1958 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1959 free_nfs_cb_data(data);
1960 return;
1961 }
1962
1963 str = &str[strlen(str) + 1];
1964 res = command_data;
1965 if (res->status != NFS3_OK) {
1966 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));
1967 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1968
1969 return;
1970 }
1971
1972 nfsfh = malloc(sizeof(struct nfsfh));
1973 if (nfsfh == NULL) {
1974 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1975 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1976 free_nfs_cb_data(data);
1977 return;
1978 }
ea98629a 1979 memset(nfsfh, 0, sizeof(struct nfsfh));
84004dbf 1980
0c1a9d7a
RS		 1981 /* copy the filehandle */
1982 nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
1983 nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
1984 memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
84004dbf
RS		 1985
1986 data->cb(0, nfs, nfsfh, data->private_data);
1987 free_nfs_cb_data(data);
1988}
1989
1990
1991
f3a75078 1992static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 1993{
1994 CREATE3res *res;
1995 struct nfs_cb_data *data = private_data;
1996 struct nfs_context *nfs = data->nfs;
1997 char *str = data->continue_data;
1998
f3a75078
RS		 1999 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2000
84004dbf
RS		 2001 if (status == RPC_STATUS_ERROR) {
2002 data->cb(-EFAULT, nfs, command_data, data->private_data);
2003 free_nfs_cb_data(data);
2004 return;
2005 }
2006 if (status == RPC_STATUS_CANCEL) {
2007 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2008 free_nfs_cb_data(data);
2009 return;
2010 }
2011
2012 str = &str[strlen(str) + 1];
2013 res = command_data;
2014 if (res->status != NFS3_OK) {
2015 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));
2016 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
fadbf8cf 2017 free_nfs_cb_data(data);
84004dbf
RS		 2018 return;
2019 }
2020
2021 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
2022 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
2023 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2024 free_nfs_cb_data(data);
2025 return;
2026 }
2027 return;
2028}
2029
2030static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2031{
2032 char *str = data->continue_data;
c985c015
RS		 2033 CREATE3args args;
2034
84004dbf
RS		 2035 str = &str[strlen(str) + 1];
2036
c985c015
RS		 2037 memset(&args, 0, sizeof(CREATE3args));
2038 args.where.dir.data.data_len = data->fh.data.data_len;
2039 args.where.dir.data.data_val = data->fh.data.data_val;
2040 args.where.name = str;
2041 args.how.mode = UNCHECKED;
2042 args.how.createhow3_u.obj_attributes.mode.set_it = 1;
2043 args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
2044
2045 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
84004dbf
RS		 2046 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
2047 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2048 free_nfs_cb_data(data);
2049 return -1;
2050 }
2051 return 0;
2052}
2053
2054int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2055{
2056 char *new_path;
2057 char *ptr;
2058
2059 new_path = strdup(path);
2060 if (new_path == NULL) {
cbbf9d3e 2061 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 2062 return -1;
2063 }
2064
93e9306f 2065 ptr = strrchr(new_path, '/');
84004dbf 2066 if (ptr == NULL) {
cbbf9d3e
RS		 2067 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2068 return -1;
84004dbf
RS		 2069 }
2070 *ptr = 0;
2071
73f4ae7c 2072 /* new_path now points to the parent directory, and beyond the nul terminator is the new directory to create */
84004dbf 2073 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
cbbf9d3e
RS		 2074 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2075 return -1;
84004dbf
RS		 2076 }
2077
2078 return 0;
2079}
2080
2081
2082
2083
2084/*
2085 * Async unlink()
2086 */
f3a75078 2087static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 2088{
2089 REMOVE3res *res;
2090 struct nfs_cb_data *data = private_data;
2091 struct nfs_context *nfs = data->nfs;
2092 char *str = data->continue_data;
2093
f3a75078
RS		 2094 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2095
84004dbf
RS		 2096 str = &str[strlen(str) + 1];
2097
2098 if (status == RPC_STATUS_ERROR) {
2099 data->cb(-EFAULT, nfs, command_data, data->private_data);
2100 free_nfs_cb_data(data);
2101 return;
2102 }
2103 if (status == RPC_STATUS_CANCEL) {
2104 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2105 free_nfs_cb_data(data);
2106 return;
2107 }
2108
2109 res = command_data;
2110 if (res->status != NFS3_OK) {
2111 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));
2112 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2113 free_nfs_cb_data(data);
2114 return;
2115 }
2116
2117 data->cb(0, nfs, NULL, data->private_data);
2118 free_nfs_cb_data(data);
2119}
2120
2121static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2122{
2123 char *str = data->continue_data;
2124
2125 str = &str[strlen(str) + 1];
2126
2127 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
2128 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
2129 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2130 free_nfs_cb_data(data);
2131 return -1;
2132 }
2133 return 0;
2134}
2135
2136int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2137{
2138 char *new_path;
2139 char *ptr;
2140
2141 new_path = strdup(path);
2142 if (new_path == NULL) {
cbbf9d3e 2143 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 2144 return -1;
2145 }
2146
93e9306f 2147 ptr = strrchr(new_path, '/');
84004dbf 2148 if (ptr == NULL) {
cbbf9d3e
RS		 2149 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2150 return -1;
84004dbf
RS		 2151 }
2152 *ptr = 0;
2153
2154 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2155 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
cbbf9d3e
RS		 2156 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2157 return -1;
84004dbf
RS		 2158 }
2159
2160 return 0;
2161}
2162
2163
1ec6b50a
RS		 2164/*
2165 * Async mknod()
2166 */
2167struct mknod_cb_data {
2168 char *path;
2169 int mode;
2170 int major;
2171 int minor;
2172};
2173
2174static void free_mknod_cb_data(void *ptr)
2175{
2176 struct mknod_cb_data *data = ptr;
2177
2178 free(data->path);
2179 free(data);
2180}
2181
f3a75078 2182static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
1ec6b50a
RS		 2183{
2184 MKNOD3res *res;
2185 struct nfs_cb_data *data = private_data;
2186 struct nfs_context *nfs = data->nfs;
2187 char *str = data->continue_data;
2188
f3a75078
RS		 2189 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2190
1ec6b50a
RS		 2191 str = &str[strlen(str) + 1];
2192
2193 if (status == RPC_STATUS_ERROR) {
2194 data->cb(-EFAULT, nfs, command_data, data->private_data);
2195 free_nfs_cb_data(data);
2196 return;
2197 }
2198 if (status == RPC_STATUS_CANCEL) {
2199 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2200 free_nfs_cb_data(data);
2201 return;
2202 }
2203
2204 res = command_data;
2205 if (res->status != NFS3_OK) {
2206 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));
2207 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2208 free_nfs_cb_data(data);
2209 return;
2210 }
2211
2212 data->cb(0, nfs, NULL, data->private_data);
2213 free_nfs_cb_data(data);
2214}
2215
2216static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2217{
2218 struct mknod_cb_data *cb_data = data->continue_data;
2219 char *str = cb_data->path;
2220
2221 str = &str[strlen(str) + 1];
2222
2223 if (rpc_nfs_mknod_async(nfs->rpc, nfs_mknod_cb, &data->fh, str, cb_data->mode, cb_data->major, cb_data->minor, data) != 0) {
2224 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2225 free_nfs_cb_data(data);
2226 return -1;
2227 }
2228 return 0;
2229}
2230
2231int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
2232{
2233 char *ptr;
2234 struct mknod_cb_data *cb_data;
2235
2236 cb_data = malloc(sizeof(struct mknod_cb_data));
2237 if (cb_data == NULL) {
2238 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
2239 return -1;
2240 }
2241
2242 cb_data->path = strdup(path);
2243 if (cb_data->path == NULL) {
2244 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
2245 free(cb_data);
2246 return -1;
2247 }
2248
2249 ptr = strrchr(cb_data->path, '/');
2250 if (ptr == NULL) {
2251 rpc_set_error(nfs->rpc, "Invalid path %s", path);
2252 return -1;
2253 }
2254 *ptr = 0;
2255
2256 cb_data->mode = mode;
2257 cb_data->major = major(dev);
2258 cb_data->minor = minor(dev);
2259
2260 /* data->path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
2261 if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
2262 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2263 free_mknod_cb_data(cb_data);
2264 return -1;
2265 }
2266
2267 return 0;
2268}
84004dbf 2269
84004dbf
RS		 2270/*
2271 * Async opendir()
2272 */
fb69c64c
RS		 2273
2274/* ReadDirPlus Emulation Callback data */
2275struct rdpe_cb_data {
2276 int getattrcount;
2277 int status;
2278 struct nfs_cb_data *data;
2279};
2280
2281/* ReadDirPlus Emulation LOOKUP Callback data */
2282struct rdpe_lookup_cb_data {
2283 struct rdpe_cb_data *rdpe_cb_data;
2284 struct nfsdirent *nfsdirent;
2285};
2286
2287/* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
f3a75078 2288static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf 2289{
fb69c64c
RS		 2290 LOOKUP3res *res = command_data;
2291 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
2292 struct rdpe_cb_data *rdpe_cb_data = rdpe_lookup_cb_data->rdpe_cb_data;
2293 struct nfs_cb_data *data = rdpe_cb_data->data;
2294 struct nfsdir *nfsdir = data->continue_data;
2295 struct nfs_context *nfs = data->nfs;
2296 struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
2297
f3a75078
RS		 2298 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2299
fb69c64c
RS		 2300 free(rdpe_lookup_cb_data);
2301
2302 rdpe_cb_data->getattrcount--;
2303
2304 if (status == RPC_STATUS_ERROR) {
2305 rdpe_cb_data->status = RPC_STATUS_ERROR;
2306 }
2307 if (status == RPC_STATUS_CANCEL) {
2308 rdpe_cb_data->status = RPC_STATUS_CANCEL;
2309 }
2310 if (status == RPC_STATUS_SUCCESS && res->status != NFS3_OK) {
2311 rdpe_cb_data->status = RPC_STATUS_ERROR;
2312 }
2313 if (status == RPC_STATUS_SUCCESS && res->status == NFS3_OK) {
2314 if (res->LOOKUP3res_u.resok.obj_attributes.attributes_follow) {
2315 fattr3 *attributes = &res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes;
2316
2317 nfsdirent->type = attributes->type;
2318 nfsdirent->mode = attributes->mode;
2319 nfsdirent->size = attributes->size;
2320
2321 nfsdirent->atime.tv_sec = attributes->atime.seconds;
2322 nfsdirent->atime.tv_usec = attributes->atime.nseconds/1000;
2323 nfsdirent->mtime.tv_sec = attributes->mtime.seconds;
2324 nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
2325 nfsdirent->ctime.tv_sec = attributes->ctime.seconds;
2326 nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
2327 }
2328 }
2329
2330 if (rdpe_cb_data->getattrcount == 0) {
2331 if (rdpe_cb_data->status != RPC_STATUS_SUCCESS) {
2332 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2333 nfs_free_nfsdir(nfsdir);
2334 } else {
2335 data->cb(0, nfs, nfsdir, data->private_data);
2336 }
2337 free(rdpe_cb_data);
2338
2339 data->continue_data = NULL;
2340 free_nfs_cb_data(data);
2341 }
2342}
2343
f3a75078 2344static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
fb69c64c
RS		 2345{
2346 READDIR3res *res = command_data;
84004dbf
RS		 2347 struct nfs_cb_data *data = private_data;
2348 struct nfs_context *nfs = data->nfs;
fb6510bb 2349 struct nfsdir *nfsdir = data->continue_data;
fb69c64c
RS		 2350 struct nfsdirent *nfsdirent;
2351 struct entry3 *entry;
84004dbf 2352 uint64_t cookie;
fb69c64c
RS		 2353 struct rdpe_cb_data *rdpe_cb_data;
2354
f3a75078
RS		 2355 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2356
84004dbf
RS		 2357 if (status == RPC_STATUS_ERROR) {
2358 data->cb(-EFAULT, nfs, command_data, data->private_data);
2359 nfs_free_nfsdir(nfsdir);
2360 data->continue_data = NULL;
2361 free_nfs_cb_data(data);
2362 return;
2363 }
fb69c64c 2364
84004dbf
RS		 2365 if (status == RPC_STATUS_CANCEL) {
2366 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2367 nfs_free_nfsdir(nfsdir);
2368 data->continue_data = NULL;
2369 free_nfs_cb_data(data);
2370 return;
2371 }
2372
84004dbf
RS		 2373 if (res->status != NFS3_OK) {
2374 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));
2375 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2376 nfs_free_nfsdir(nfsdir);
2377 data->continue_data = NULL;
2378 free_nfs_cb_data(data);
2379 return;
fb69c64c
RS		 2380 }
2381
2382 entry =res->READDIR3res_u.resok.reply.entries;
2383 while (entry != NULL) {
2384 nfsdirent = malloc(sizeof(struct nfsdirent));
2385 if (nfsdirent == NULL) {
2386 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2387 nfs_free_nfsdir(nfsdir);
2388 data->continue_data = NULL;
2389 free_nfs_cb_data(data);
2390 return;
2391 }
2392 memset(nfsdirent, 0, sizeof(struct nfsdirent));
2393 nfsdirent->name = strdup(entry->name);
2394 if (nfsdirent->name == NULL) {
2395 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2396 nfs_free_nfsdir(nfsdir);
2397 data->continue_data = NULL;
2398 free_nfs_cb_data(data);
2399 return;
2400 }
2401 nfsdirent->inode = entry->fileid;
2402
2403 nfsdirent->next = nfsdir->entries;
2404 nfsdir->entries = nfsdirent;
2405
2406 cookie = entry->cookie;
2407 entry = entry->nextentry;
2408 }
2409
2410 if (res->READDIR3res_u.resok.reply.eof == 0) {
2411 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 8192, data) != 0) {
2412 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2413 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2414 nfs_free_nfsdir(nfsdir);
2415 data->continue_data = NULL;
2416 free_nfs_cb_data(data);
2417 return;
2418 }
2419 return;
2420 }
2421
2422 /* steal the dirhandle */
2423 nfsdir->current = nfsdir->entries;
2424
2425 rdpe_cb_data = malloc(sizeof(struct rdpe_cb_data));
2426 rdpe_cb_data->getattrcount = 0;
2427 rdpe_cb_data->status = RPC_STATUS_SUCCESS;
2428 rdpe_cb_data->data = data;
2429 for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
2430 struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
2431
2432 rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
2433 rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
2434 rdpe_lookup_cb_data->nfsdirent = nfsdirent;
2435
2436 if (rpc_nfs_lookup_async(nfs->rpc, nfs_opendir3_cb, &data->fh, nfsdirent->name, rdpe_lookup_cb_data) != 0) {
2437 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
2438
2439 /* if we have already commands in flight, we cant just stop, we have to wait for the
2440 * commands in flight to complete
2441 */
2442 if (rdpe_cb_data->getattrcount > 0) {
2443 rdpe_cb_data->status = RPC_STATUS_ERROR;
2444 free(rdpe_lookup_cb_data);
2445 return;
2446 }
2447
2448 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2449 nfs_free_nfsdir(nfsdir);
2450 data->continue_data = NULL;
2451 free_nfs_cb_data(data);
2452 free(rdpe_lookup_cb_data);
2453 free(rdpe_cb_data);
2454 return;
2455 }
2456 rdpe_cb_data->getattrcount++;
2457 }
2458}
2459
2460
f3a75078 2461static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
fb69c64c
RS		 2462{
2463 READDIRPLUS3res *res = command_data;
2464 struct nfs_cb_data *data = private_data;
2465 struct nfs_context *nfs = data->nfs;
2466 struct nfsdir *nfsdir = data->continue_data;
2467 struct entryplus3 *entry;
2468 uint64_t cookie;
2469
f3a75078 2470 assert(rpc->magic == RPC_CONTEXT_MAGIC);
fb69c64c
RS		 2471
2472 if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
2473 cookieverf3 cv;
2474
2475 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2476 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
2477 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2478 nfs_free_nfsdir(nfsdir);
2479 data->continue_data = NULL;
2480 free_nfs_cb_data(data);
2481 return;
2482 }
2483 return;
2484 }
2485
2486 if (status == RPC_STATUS_CANCEL) {
2487 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2488 nfs_free_nfsdir(nfsdir);
2489 data->continue_data = NULL;
2490 free_nfs_cb_data(data);
2491 return;
2492 }
2493
2494 if (res->status != NFS3_OK) {
2495 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));
2496 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2497 nfs_free_nfsdir(nfsdir);
2498 data->continue_data = NULL;
2499 free_nfs_cb_data(data);
2500 return;
84004dbf
RS		 2501 }
2502
f390f181 2503 entry =res->READDIRPLUS3res_u.resok.reply.entries;
84004dbf
RS		 2504 while (entry != NULL) {
2505 struct nfsdirent *nfsdirent;
2506
2507 nfsdirent = malloc(sizeof(struct nfsdirent));
2508 if (nfsdirent == NULL) {
2509 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
2510 nfs_free_nfsdir(nfsdir);
2511 data->continue_data = NULL;
2512 free_nfs_cb_data(data);
2513 return;
2514 }
ea98629a 2515 memset(nfsdirent, 0, sizeof(struct nfsdirent));
84004dbf
RS		 2516 nfsdirent->name = strdup(entry->name);
2517 if (nfsdirent->name == NULL) {
2518 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
2519 nfs_free_nfsdir(nfsdir);
2520 data->continue_data = NULL;
2521 free_nfs_cb_data(data);
2522 return;
2523 }
2524 nfsdirent->inode = entry->fileid;
0804e67d
RS		 2525 if (entry->name_attributes.attributes_follow) {
2526 nfsdirent->type = entry->name_attributes.post_op_attr_u.attributes.type;
2527 nfsdirent->mode = entry->name_attributes.post_op_attr_u.attributes.mode;
2528 nfsdirent->size = entry->name_attributes.post_op_attr_u.attributes.size;
2529
2530 nfsdirent->atime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.atime.seconds;
2531 nfsdirent->atime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.atime.nseconds/1000;
2532 nfsdirent->mtime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.mtime.seconds;
2533 nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
2534 nfsdirent->ctime.tv_sec = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
2535 nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
2536 }
2537
84004dbf
RS		 2538 nfsdirent->next = nfsdir->entries;
2539 nfsdir->entries = nfsdirent;
2540
2541 cookie = entry->cookie;
2542 entry = entry->nextentry;
2543 }
2544
f390f181
RS		 2545 if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
2546 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIRPLUS3res_u.resok.cookieverf, 8192, data) != 0) {
2547 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
84004dbf
RS		 2548 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2549 nfs_free_nfsdir(nfsdir);
2550 data->continue_data = NULL;
2551 free_nfs_cb_data(data);
2552 return;
2553 }
2554 return;
2555 }
2556
2557 /* steal the dirhandle */
2558 data->continue_data = NULL;
2559 nfsdir->current = nfsdir->entries;
2560
2561 data->cb(0, nfs, nfsdir, data->private_data);
2562 free_nfs_cb_data(data);
2563}
2564
2565static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2566{
2567 cookieverf3 cv;
2568
ea98629a 2569 memset(cv, 0, sizeof(cookieverf3));
f390f181
RS		 2570 if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
2571 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
84004dbf
RS		 2572 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2573 free_nfs_cb_data(data);
2574 return -1;
2575 }
2576 return 0;
2577}
2578
2579int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2580{
2581 struct nfsdir *nfsdir;
2582
2583 nfsdir = malloc(sizeof(struct nfsdir));
2584 if (nfsdir == NULL) {
cbbf9d3e 2585 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
84004dbf
RS		 2586 return -1;
2587 }
ea98629a 2588 memset(nfsdir, 0, sizeof(struct nfsdir));
84004dbf
RS		 2589
2590 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
cbbf9d3e
RS		 2591 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2592 return -1;
84004dbf
RS		 2593 }
2594
2595 return 0;
2596}
2597
2598
2599struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2600{
2601 struct nfsdirent *nfsdirent = nfsdir->current;
2602
2603 if (nfsdir->current != NULL) {
2604 nfsdir->current = nfsdir->current->next;
2605 }
2606 return nfsdirent;
2607}
2608
2609
2610void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
2611{
2612 nfs_free_nfsdir(nfsdir);
2613}
2614
2615
2616
2617
2618
2619
2620
2621/*
2622 * Async lseek()
2623 */
2624struct lseek_cb_data {
2625 struct nfs_context *nfs;
2626 struct nfsfh *nfsfh;
183451cf 2627 uint64_t offset;
84004dbf
RS		 2628 nfs_cb cb;
2629 void *private_data;
2630};
2631
f3a75078 2632static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 2633{
2634 GETATTR3res *res;
2635 struct lseek_cb_data *data = private_data;
2636 struct nfs_context *nfs = data->nfs;
2637
f3a75078
RS		 2638 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2639
84004dbf
RS		 2640 if (status == RPC_STATUS_ERROR) {
2641 data->cb(-EFAULT, nfs, command_data, data->private_data);
2642 free(data);
2643 return;
2644 }
2645 if (status == RPC_STATUS_CANCEL) {
2646 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2647 free(data);
2648 return;
2649 }
2650
2651 res = command_data;
2652 if (res->status != NFS3_OK) {
2653 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2654 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2655 free(data);
2656 return;
2657 }
2658
2659 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
2660 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
2661 free(data);
2662}
2663
183451cf 2664int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
84004dbf
RS		 2665{
2666 struct lseek_cb_data *data;
2667
2668 if (whence == SEEK_SET) {
2669 nfsfh->offset = offset;
2670 cb(0, nfs, &nfsfh->offset, private_data);
2671 return 0;
2672 }
2673 if (whence == SEEK_CUR) {
2674 nfsfh->offset += offset;
2675 cb(0, nfs, &nfsfh->offset, private_data);
2676 return 0;
2677 }
2678
2679 data = malloc(sizeof(struct lseek_cb_data));
2680 if (data == NULL) {
2681 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
2682 return -1;
2683 }
2684
2685 data->nfs = nfs;
2686 data->nfsfh = nfsfh;
2687 data->offset = offset;
2688 data->cb = cb;
2689 data->private_data = private_data;
2690
2691 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
2692 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
2693 free(data);
cbbf9d3e 2694 return -1;
84004dbf
RS		 2695 }
2696 return 0;
2697}
2698
2699
2700
2701
2702/*
2703 * Async statvfs()
2704 */
f3a75078 2705static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 2706{
2707 FSSTAT3res *res;
2708 struct nfs_cb_data *data = private_data;
2709 struct nfs_context *nfs = data->nfs;
2710 struct statvfs svfs;
2711
f3a75078
RS		 2712 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2713
84004dbf
RS		 2714 if (status == RPC_STATUS_ERROR) {
2715 data->cb(-EFAULT, nfs, command_data, data->private_data);
2716 free_nfs_cb_data(data);
2717 return;
2718 }
2719 if (status == RPC_STATUS_CANCEL) {
2720 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2721 free_nfs_cb_data(data);
2722 return;
2723 }
2724
2725 res = command_data;
2726 if (res->status != NFS3_OK) {
2727 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));
2728 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2729 free_nfs_cb_data(data);
2730 return;
2731 }
2732
2733 svfs.f_bsize = 4096;
2734 svfs.f_frsize = 4096;
2735 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
2736 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
2737 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
2738 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
2739 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
252aa90d 2740#if !defined(ANDROID)
84004dbf
RS		 2741 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
2742 svfs.f_fsid = 0;
2743 svfs.f_flag = 0;
2744 svfs.f_namemax = 256;
252aa90d 2745#endif
84004dbf
RS		 2746
2747 data->cb(0, nfs, &svfs, data->private_data);
2748 free_nfs_cb_data(data);
2749}
2750
2751static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2752{
2753 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
2754 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
2755 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2756 free_nfs_cb_data(data);
2757 return -1;
2758 }
2759 return 0;
2760}
2761
2762int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2763{
2764 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
cbbf9d3e 2765 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 2766 return -1;
2767 }
2768
2769 return 0;
2770}
2771
2772
2773
2774
2775/*
2776 * Async readlink()
2777 */
f3a75078 2778static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 2779{
2780 READLINK3res *res;
2781 struct nfs_cb_data *data = private_data;
2782 struct nfs_context *nfs = data->nfs;
2783
f3a75078
RS		 2784 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2785
84004dbf
RS		 2786 if (status == RPC_STATUS_ERROR) {
2787 data->cb(-EFAULT, nfs, command_data, data->private_data);
2788 free_nfs_cb_data(data);
2789 return;
2790 }
2791 if (status == RPC_STATUS_CANCEL) {
2792 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2793 free_nfs_cb_data(data);
2794 return;
2795 }
2796
2797 res = command_data;
2798 if (res->status != NFS3_OK) {
2799 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));
2800 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2801 free_nfs_cb_data(data);
2802 return;
2803 }
2804
2805
2806 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
2807 free_nfs_cb_data(data);
2808}
2809
2810static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2811{
16104b27
RS		 2812 READLINK3args args;
2813
2814 args.symlink.data.data_len = data->fh.data.data_len;
2815 args.symlink.data.data_val = data->fh.data.data_val;
2816
2817 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
84004dbf
RS		 2818 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
2819 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2820 free_nfs_cb_data(data);
2821 return -1;
2822 }
2823 return 0;
2824}
2825
2826int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
2827{
2828 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
cbbf9d3e 2829 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 2830 return -1;
2831 }
2832
2833 return 0;
2834}
2835
2836
2837
2838
2839/*
2840 * Async chmod()
2841 */
f3a75078 2842static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 2843{
2844 struct nfs_cb_data *data = private_data;
2845 struct nfs_context *nfs = data->nfs;
2846 SETATTR3res *res;
2847
f3a75078
RS		 2848 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2849
84004dbf
RS		 2850 if (status == RPC_STATUS_ERROR) {
2851 data->cb(-EFAULT, nfs, command_data, data->private_data);
2852 free_nfs_cb_data(data);
2853 return;
2854 }
2855 if (status == RPC_STATUS_CANCEL) {
2856 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2857 free_nfs_cb_data(data);
2858 return;
2859 }
2860
2861 res = command_data;
2862 if (res->status != NFS3_OK) {
2863 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2864 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2865 free_nfs_cb_data(data);
2866 return;
2867 }
2868
2869 data->cb(0, nfs, NULL, data->private_data);
2870 free_nfs_cb_data(data);
2871}
2872
2873static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2874{
2875 SETATTR3args args;
2876
ea98629a 2877 memset(&args, 0, sizeof(SETATTR3args));
84004dbf
RS		 2878 args.object.data.data_len = data->fh.data.data_len;
2879 args.object.data.data_val = data->fh.data.data_val;
2880 args.new_attributes.mode.set_it = 1;
2881 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2882
2883 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2884 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2885 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2886 free_nfs_cb_data(data);
2887 return -1;
2888 }
2889 return 0;
2890}
2891
2892
2893int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2894{
2895 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
cbbf9d3e 2896 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 2897 return -1;
2898 }
2899
2900 return 0;
2901}
2902
2903/*
2904 * Async fchmod()
2905 */
2906int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2907{
2908 struct nfs_cb_data *data;
2909
2910 data = malloc(sizeof(struct nfs_cb_data));
2911 if (data == NULL) {
cbbf9d3e 2912 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
84004dbf
RS		 2913 return -1;
2914 }
ea98629a 2915 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 2916 data->nfs = nfs;
2917 data->cb = cb;
2918 data->private_data = private_data;
2919 data->continue_int = mode;
2920 data->fh.data.data_len = nfsfh->fh.data.data_len;
2921 data->fh.data.data_val = malloc(data->fh.data.data_len);
2922 if (data->fh.data.data_val == NULL) {
2923 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2924 free_nfs_cb_data(data);
2925 return -1;
2926 }
2927 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2928
2929 if (nfs_chmod_continue_internal(nfs, data) != 0) {
2930 free_nfs_cb_data(data);
2931 return -1;
2932 }
2933
2934 return 0;
2935}
2936
2937
2938
2939/*
2940 * Async chown()
2941 */
f3a75078 2942static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 2943{
2944 struct nfs_cb_data *data = private_data;
2945 struct nfs_context *nfs = data->nfs;
2946 SETATTR3res *res;
2947
f3a75078
RS		 2948 assert(rpc->magic == RPC_CONTEXT_MAGIC);
2949
84004dbf
RS		 2950 if (status == RPC_STATUS_ERROR) {
2951 data->cb(-EFAULT, nfs, command_data, data->private_data);
2952 free_nfs_cb_data(data);
2953 return;
2954 }
2955 if (status == RPC_STATUS_CANCEL) {
2956 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2957 free_nfs_cb_data(data);
2958 return;
2959 }
2960
2961 res = command_data;
2962 if (res->status != NFS3_OK) {
2963 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2964 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2965 free_nfs_cb_data(data);
2966 return;
2967 }
2968
2969 data->cb(0, nfs, NULL, data->private_data);
2970 free_nfs_cb_data(data);
2971}
2972
2973struct nfs_chown_data {
2974 uid_t uid;
2975 gid_t gid;
2976};
2977
2978static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2979{
2980 SETATTR3args args;
2981 struct nfs_chown_data *chown_data = data->continue_data;
2982
ea98629a 2983 memset(&args, 0, sizeof(SETATTR3args));
84004dbf
RS		 2984 args.object.data.data_len = data->fh.data.data_len;
2985 args.object.data.data_val = data->fh.data.data_val;
2986 if (chown_data->uid != (uid_t)-1) {
2987 args.new_attributes.uid.set_it = 1;
2988 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2989 }
2990 if (chown_data->gid != (gid_t)-1) {
2991 args.new_attributes.gid.set_it = 1;
2992 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2993 }
2994
2995 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2996 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2997 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2998 free_nfs_cb_data(data);
2999 return -1;
3000 }
3001 return 0;
3002}
3003
3004
3005int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
3006{
3007 struct nfs_chown_data *chown_data;
3008
3009 chown_data = malloc(sizeof(struct nfs_chown_data));
3010 if (chown_data == NULL) {
cbbf9d3e 3011 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
84004dbf
RS		 3012 return -1;
3013 }
3014
3015 chown_data->uid = uid;
3016 chown_data->gid = gid;
3017
3018 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
cbbf9d3e 3019 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 3020 return -1;
3021 }
3022
3023 return 0;
3024}
3025
3026
3027/*
3028 * Async fchown()
3029 */
3030int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
3031{
3032 struct nfs_cb_data *data;
3033 struct nfs_chown_data *chown_data;
3034
3035 chown_data = malloc(sizeof(struct nfs_chown_data));
3036 if (chown_data == NULL) {
cbbf9d3e 3037 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
84004dbf
RS		 3038 return -1;
3039 }
3040
3041 chown_data->uid = uid;
3042 chown_data->gid = gid;
3043
3044
3045 data = malloc(sizeof(struct nfs_cb_data));
3046 if (data == NULL) {
cbbf9d3e 3047 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
84004dbf
RS		 3048 return -1;
3049 }
ea98629a 3050 memset(data, 0, sizeof(struct nfs_cb_data));
84004dbf
RS		 3051 data->nfs = nfs;
3052 data->cb = cb;
3053 data->private_data = private_data;
3054 data->continue_data = chown_data;
3055 data->fh.data.data_len = nfsfh->fh.data.data_len;
3056 data->fh.data.data_val = malloc(data->fh.data.data_len);
3057 if (data->fh.data.data_val == NULL) {
3058 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
3059 free_nfs_cb_data(data);
3060 return -1;
3061 }
3062 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
3063
3064
3065 if (nfs_chown_continue_internal(nfs, data) != 0) {
3066 free_nfs_cb_data(data);
3067 return -1;
3068 }
3069
3070 return 0;
3071}
3072
3073
3074
3075
3076
3077/*
3078 * Async utimes()
3079 */
f3a75078 3080static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 3081{
3082 struct nfs_cb_data *data = private_data;
3083 struct nfs_context *nfs = data->nfs;
3084 SETATTR3res *res;
3085
f3a75078
RS		 3086 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3087
84004dbf
RS		 3088 if (status == RPC_STATUS_ERROR) {
3089 data->cb(-EFAULT, nfs, command_data, data->private_data);
3090 free_nfs_cb_data(data);
3091 return;
3092 }
3093 if (status == RPC_STATUS_CANCEL) {
3094 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3095 free_nfs_cb_data(data);
3096 return;
3097 }
3098
3099 res = command_data;
3100 if (res->status != NFS3_OK) {
3101 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
3102 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3103 free_nfs_cb_data(data);
3104 return;
3105 }
3106
3107 data->cb(0, nfs, NULL, data->private_data);
3108 free_nfs_cb_data(data);
3109}
3110
3111static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3112{
3113 SETATTR3args args;
3114 struct timeval *utimes_data = data->continue_data;
3115
ea98629a 3116 memset(&args, 0, sizeof(SETATTR3args));
84004dbf
RS		 3117 args.object.data.data_len = data->fh.data.data_len;
3118 args.object.data.data_val = data->fh.data.data_val;
3119 if (utimes_data != NULL) {
3120 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
3121 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
3122 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
3123 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
3124 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
3125 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
3126 } else {
3127 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
3128 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
3129 }
3130
3131 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
3132 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
3133 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3134 free_nfs_cb_data(data);
3135 return -1;
3136 }
3137 return 0;
3138}
3139
3140
3141int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
3142{
3143 struct timeval *new_times = NULL;
3144
3145 if (times != NULL) {
3146 new_times = malloc(sizeof(struct timeval)*2);
3147 if (new_times == NULL) {
cbbf9d3e 3148 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
84004dbf
RS		 3149 return -1;
3150 }
3151
3152 memcpy(new_times, times, sizeof(struct timeval)*2);
3153 }
3154
3155 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
cbbf9d3e 3156 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 3157 return -1;
3158 }
3159
3160 return 0;
3161}
3162
3163/*
3164 * Async utime()
3165 */
3166int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
3167{
3168 struct timeval *new_times = NULL;
3169
3170 if (times != NULL) {
3171 new_times = malloc(sizeof(struct timeval)*2);
3172 if (new_times == NULL) {
cbbf9d3e 3173 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
84004dbf
RS		 3174 return -1;
3175 }
3176
3177 new_times[0].tv_sec = times->actime;
3178 new_times[0].tv_usec = 0;
3179 new_times[1].tv_sec = times->modtime;
3180 new_times[1].tv_usec = 0;
3181 }
3182
3183 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
cbbf9d3e 3184 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 3185 return -1;
3186 }
3187
3188 return 0;
3189}
84004dbf
RS		 3190
3191
3192/*
3193 * Async access()
3194 */
f3a75078 3195static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 3196{
3197 ACCESS3res *res;
3198 struct nfs_cb_data *data = private_data;
3199 struct nfs_context *nfs = data->nfs;
3200 unsigned int nfsmode = 0;
3201
f3a75078
RS		 3202 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3203
84004dbf
RS		 3204 if (status == RPC_STATUS_ERROR) {
3205 data->cb(-EFAULT, nfs, command_data, data->private_data);
3206 free_nfs_cb_data(data);
3207 return;
3208 }
3209 if (status == RPC_STATUS_CANCEL) {
3210 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3211 free_nfs_cb_data(data);
3212 return;
3213 }
3214
3215 res = command_data;
3216 if (res->status != NFS3_OK) {
3217 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));
3218 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3219 free_nfs_cb_data(data);
3220 return;
3221 }
3222
3223 if (data->continue_int & R_OK) {
3224 nfsmode |= ACCESS3_READ;
3225 }
3226 if (data->continue_int & W_OK) {
3227 nfsmode |= ACCESS3_MODIFY;
3228 }
3229 if (data->continue_int & X_OK) {
3230 nfsmode |= ACCESS3_EXECUTE;
3231 }
3232
3233 if (res->ACCESS3res_u.resok.access != nfsmode) {
3234 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
3235 nfsmode&ACCESS3_READ?'r':'-',
3236 nfsmode&ACCESS3_MODIFY?'w':'-',
3237 nfsmode&ACCESS3_EXECUTE?'x':'-',
3238 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
3239 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
3240 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
3241 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
3242 free_nfs_cb_data(data);
3243 return;
3244 }
3245
3246 data->cb(0, nfs, NULL, data->private_data);
3247 free_nfs_cb_data(data);
3248}
3249
3250static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3251{
3252 int nfsmode = 0;
3253
3254 if (data->continue_int & R_OK) {
3255 nfsmode |= ACCESS3_READ;
3256 }
3257 if (data->continue_int & W_OK) {
3258 nfsmode |= ACCESS3_MODIFY;
3259 }
3260 if (data->continue_int & X_OK) {
3261 nfsmode |= ACCESS3_EXECUTE;
3262 }
3263
3264 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
3265 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
3266 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3267 free_nfs_cb_data(data);
3268 return -1;
3269 }
3270 return 0;
3271}
3272
3273int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
3274{
3275 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
cbbf9d3e
RS		 3276 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3277 return -1;
84004dbf
RS		 3278 }
3279
3280 return 0;
3281}
3282
3283
3284
3285/*
3286 * Async symlink()
3287 */
3288struct nfs_symlink_data {
3289 char *oldpath;
3290 char *newpathparent;
3291 char *newpathobject;
3292};
3293
3294static void free_nfs_symlink_data(void *mem)
3295{
3296 struct nfs_symlink_data *data = mem;
3297
3298 if (data->oldpath != NULL) {
3299 free(data->oldpath);
3300 }
3301 if (data->newpathparent != NULL) {
3302 free(data->newpathparent);
3303 }
3304 if (data->newpathobject != NULL) {
3305 free(data->newpathobject);
3306 }
3307 free(data);
3308}
3309
f3a75078 3310static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 3311{
3312 SYMLINK3res *res;
3313 struct nfs_cb_data *data = private_data;
3314 struct nfs_context *nfs = data->nfs;
3315 struct nfs_symlink_data *symlink_data = data->continue_data;
3316
f3a75078
RS		 3317 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3318
84004dbf
RS		 3319 if (status == RPC_STATUS_ERROR) {
3320 data->cb(-EFAULT, nfs, command_data, data->private_data);
3321 free_nfs_cb_data(data);
3322 return;
3323 }
3324 if (status == RPC_STATUS_CANCEL) {
3325 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3326 free_nfs_cb_data(data);
3327 return;
3328 }
3329
3330 res = command_data;
3331 if (res->status != NFS3_OK) {
3332 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));
3333 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3334 free_nfs_cb_data(data);
3335 return;
3336 }
3337
3338 data->cb(0, nfs, NULL, data->private_data);
3339 free_nfs_cb_data(data);
3340}
3341
3342static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3343{
3344 struct nfs_symlink_data *symlink_data = data->continue_data;
8e255816 3345 SYMLINK3args sa;
84004dbf 3346
8e255816
RS		 3347 memset(&sa, 0, sizeof(SYMLINK3args));
3348 sa.where.dir.data.data_len = data->fh.data.data_len;
3349 sa.where.dir.data.data_val = data->fh.data.data_val;
3350 sa.where.name = symlink_data->newpathobject;
3351 sa.symlink.symlink_attributes.mode.set_it = 1;
3352 sa.symlink.symlink_attributes.mode.set_mode3_u.mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH;
3353 sa.symlink.symlink_data = symlink_data->oldpath;
3354
3355 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &sa, data) != 0) {
84004dbf
RS		 3356 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
3357 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3358 free_nfs_cb_data(data);
3359 return -1;
3360 }
3361 return 0;
3362}
3363
3364int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3365{
3366 char *ptr;
3367 struct nfs_symlink_data *symlink_data;
3368
3369 symlink_data = malloc(sizeof(struct nfs_symlink_data));
3370 if (symlink_data == NULL) {
cbbf9d3e 3371 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
84004dbf
RS		 3372 return -1;
3373 }
ea98629a 3374 memset(symlink_data, 0, sizeof(struct nfs_symlink_data));
84004dbf
RS		 3375
3376 symlink_data->oldpath = strdup(oldpath);
3377 if (symlink_data->oldpath == NULL) {
cbbf9d3e 3378 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
84004dbf 3379 free_nfs_symlink_data(symlink_data);
cbbf9d3e 3380 return -1;
84004dbf
RS		 3381 }
3382
3383 symlink_data->newpathparent = strdup(newpath);
3384 if (symlink_data->newpathparent == NULL) {
cbbf9d3e 3385 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
84004dbf 3386 free_nfs_symlink_data(symlink_data);
cbbf9d3e 3387 return -1;
84004dbf
RS		 3388 }
3389
93e9306f 3390 ptr = strrchr(symlink_data->newpathparent, '/');
84004dbf 3391 if (ptr == NULL) {
cbbf9d3e 3392 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
84004dbf 3393 free_nfs_symlink_data(symlink_data);
cbbf9d3e 3394 return -1;
84004dbf
RS		 3395 }
3396 *ptr = 0;
3397 ptr++;
3398
3399 symlink_data->newpathobject = strdup(ptr);
3400 if (symlink_data->newpathobject == NULL) {
cbbf9d3e 3401 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
84004dbf 3402 free_nfs_symlink_data(symlink_data);
cbbf9d3e 3403 return -1;
84004dbf
RS		 3404 }
3405
3406 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
cbbf9d3e
RS		 3407 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3408 return -1;
84004dbf
RS		 3409 }
3410
3411 return 0;
3412}
3413
3414
3415
3416/*
3417 * Async rename()
3418 */
3419struct nfs_rename_data {
3420 char *oldpath;
3421 char *oldobject;
3422 struct nfs_fh3 olddir;
3423 char *newpath;
3424 char *newobject;
3425 struct nfs_fh3 newdir;
3426};
3427
3428static void free_nfs_rename_data(void *mem)
3429{
3430 struct nfs_rename_data *data = mem;
3431
3432 if (data->oldpath != NULL) {
3433 free(data->oldpath);
3434 }
3435 if (data->olddir.data.data_val != NULL) {
3436 free(data->olddir.data.data_val);
3437 }
3438 if (data->newpath != NULL) {
3439 free(data->newpath);
3440 }
3441 if (data->newdir.data.data_val != NULL) {
3442 free(data->newdir.data.data_val);
3443 }
3444 free(data);
3445}
3446
f3a75078 3447static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 3448{
3449 RENAME3res *res;
3450 struct nfs_cb_data *data = private_data;
3451 struct nfs_context *nfs = data->nfs;
3452 struct nfs_rename_data *rename_data = data->continue_data;
3453
f3a75078
RS		 3454 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3455
84004dbf
RS		 3456 if (status == RPC_STATUS_ERROR) {
3457 data->cb(-EFAULT, nfs, command_data, data->private_data);
3458 free_nfs_cb_data(data);
3459 return;
3460 }
3461 if (status == RPC_STATUS_CANCEL) {
3462 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3463 free_nfs_cb_data(data);
3464 return;
3465 }
3466
3467 res = command_data;
3468 if (res->status != NFS3_OK) {
3469 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));
3470 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3471 free_nfs_cb_data(data);
3472 return;
3473 }
3474
3475 data->cb(0, nfs, NULL, data->private_data);
3476 free_nfs_cb_data(data);
3477}
3478
3479static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3480{
3481 struct nfs_rename_data *rename_data = data->continue_data;
3482
3483 /* steal the filehandle */
3484 rename_data->newdir.data.data_len = data->fh.data.data_len;
3485 rename_data->newdir.data.data_val = data->fh.data.data_val;
3486 data->fh.data.data_val = NULL;
3487
3488 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
3489 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
3490 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3491 free_nfs_cb_data(data);
3492 return -1;
3493 }
3494 return 0;
3495}
3496
3497
3498static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3499{
3500 struct nfs_rename_data *rename_data = data->continue_data;
3501
3502 /* steal the filehandle */
3503 rename_data->olddir.data.data_len = data->fh.data.data_len;
3504 rename_data->olddir.data.data_val = data->fh.data.data_val;
3505 data->fh.data.data_val = NULL;
3506
3507 if (nfs_lookuppath_async(nfs, rename_data->newpath, data->cb, data->private_data, nfs_rename_continue_2_internal, rename_data, free_nfs_rename_data, 0) != 0) {
3508 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
3509 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3510 free_nfs_cb_data(data);
3511 return -1;
3512 }
3513 data->continue_data = NULL;
3514 free_nfs_cb_data(data);
3515
3516 return 0;
3517}
3518
3519
3520int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3521{
3522 char *ptr;
3523 struct nfs_rename_data *rename_data;
3524
3525 rename_data = malloc(sizeof(struct nfs_rename_data));
3526 if (rename_data == NULL) {
cbbf9d3e 3527 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
84004dbf
RS		 3528 return -1;
3529 }
ea98629a 3530 memset(rename_data, 0, sizeof(struct nfs_rename_data));
84004dbf
RS		 3531
3532 rename_data->oldpath = strdup(oldpath);
3533 if (rename_data->oldpath == NULL) {
cbbf9d3e 3534 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
84004dbf 3535 free_nfs_rename_data(rename_data);
cbbf9d3e 3536 return -1;
84004dbf 3537 }
93e9306f 3538 ptr = strrchr(rename_data->oldpath, '/');
84004dbf 3539 if (ptr == NULL) {
cbbf9d3e 3540 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
84004dbf 3541 free_nfs_rename_data(rename_data);
cbbf9d3e 3542 return -1;
84004dbf
RS		 3543 }
3544 *ptr = 0;
3545 ptr++;
3546 rename_data->oldobject = ptr;
3547
3548
3549 rename_data->newpath = strdup(newpath);
3550 if (rename_data->newpath == NULL) {
cbbf9d3e 3551 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
84004dbf 3552 free_nfs_rename_data(rename_data);
cbbf9d3e 3553 return -1;
84004dbf 3554 }
93e9306f 3555 ptr = strrchr(rename_data->newpath, '/');
84004dbf 3556 if (ptr == NULL) {
cbbf9d3e 3557 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
84004dbf 3558 free_nfs_rename_data(rename_data);
cbbf9d3e 3559 return -1;
84004dbf
RS		 3560 }
3561 *ptr = 0;
3562 ptr++;
3563 rename_data->newobject = ptr;
3564
3565
3566 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
cbbf9d3e
RS		 3567 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3568 return -1;
84004dbf
RS		 3569 }
3570
3571 return 0;
3572}
3573
3574
3575/*
3576 * Async link()
3577 */
3578struct nfs_link_data {
3579 char *oldpath;
3580 struct nfs_fh3 oldfh;
3581 char *newpath;
3582 char *newobject;
3583 struct nfs_fh3 newdir;
3584};
3585
3586static void free_nfs_link_data(void *mem)
3587{
3588 struct nfs_link_data *data = mem;
3589
3590 if (data->oldpath != NULL) {
3591 free(data->oldpath);
3592 }
3593 if (data->oldfh.data.data_val != NULL) {
3594 free(data->oldfh.data.data_val);
3595 }
3596 if (data->newpath != NULL) {
3597 free(data->newpath);
3598 }
3599 if (data->newdir.data.data_val != NULL) {
3600 free(data->newdir.data.data_val);
3601 }
3602 free(data);
3603}
3604
f3a75078 3605static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 3606{
3607 LINK3res *res;
3608 struct nfs_cb_data *data = private_data;
3609 struct nfs_context *nfs = data->nfs;
3610 struct nfs_link_data *link_data = data->continue_data;
3611
f3a75078
RS		 3612 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3613
84004dbf
RS		 3614 if (status == RPC_STATUS_ERROR) {
3615 data->cb(-EFAULT, nfs, command_data, data->private_data);
3616 free_nfs_cb_data(data);
3617 return;
3618 }
3619 if (status == RPC_STATUS_CANCEL) {
3620 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
3621 free_nfs_cb_data(data);
3622 return;
3623 }
3624
3625 res = command_data;
3626 if (res->status != NFS3_OK) {
3627 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));
3628 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
3629 free_nfs_cb_data(data);
3630 return;
3631 }
3632
3633 data->cb(0, nfs, NULL, data->private_data);
3634 free_nfs_cb_data(data);
3635}
3636
3637static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3638{
3639 struct nfs_link_data *link_data = data->continue_data;
3640
3641 /* steal the filehandle */
3642 link_data->newdir.data.data_len = data->fh.data.data_len;
3643 link_data->newdir.data.data_val = data->fh.data.data_val;
3644 data->fh.data.data_val = NULL;
3645
3646 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
3647 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
3648 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3649 free_nfs_cb_data(data);
3650 return -1;
3651 }
3652 return 0;
3653}
3654
3655
3656static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
3657{
3658 struct nfs_link_data *link_data = data->continue_data;
3659
3660 /* steal the filehandle */
3661 link_data->oldfh.data.data_len = data->fh.data.data_len;
3662 link_data->oldfh.data.data_val = data->fh.data.data_val;
3663 data->fh.data.data_val = NULL;
3664
3665 if (nfs_lookuppath_async(nfs, link_data->newpath, data->cb, data->private_data, nfs_link_continue_2_internal, link_data, free_nfs_link_data, 0) != 0) {
3666 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
3667 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
3668 free_nfs_cb_data(data);
3669 return -1;
3670 }
3671 data->continue_data = NULL;
3672 free_nfs_cb_data(data);
3673
3674 return 0;
3675}
3676
3677
3678int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
3679{
3680 char *ptr;
3681 struct nfs_link_data *link_data;
3682
3683 link_data = malloc(sizeof(struct nfs_link_data));
3684 if (link_data == NULL) {
cbbf9d3e 3685 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
84004dbf
RS		 3686 return -1;
3687 }
ea98629a 3688 memset(link_data, 0, sizeof(struct nfs_link_data));
84004dbf
RS		 3689
3690 link_data->oldpath = strdup(oldpath);
3691 if (link_data->oldpath == NULL) {
cbbf9d3e 3692 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
84004dbf 3693 free_nfs_link_data(link_data);
cbbf9d3e 3694 return -1;
84004dbf
RS		 3695 }
3696
3697 link_data->newpath = strdup(newpath);
3698 if (link_data->newpath == NULL) {
cbbf9d3e 3699 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
84004dbf 3700 free_nfs_link_data(link_data);
cbbf9d3e 3701 return -1;
84004dbf 3702 }
93e9306f 3703 ptr = strrchr(link_data->newpath, '/');
84004dbf 3704 if (ptr == NULL) {
cbbf9d3e 3705 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
84004dbf 3706 free_nfs_link_data(link_data);
cbbf9d3e 3707 return -1;
84004dbf
RS		 3708 }
3709 *ptr = 0;
3710 ptr++;
3711 link_data->newobject = ptr;
3712
3713
3714 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
cbbf9d3e
RS		 3715 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
3716 return -1;
84004dbf
RS		 3717 }
3718
3719 return 0;
3720}
3721
3722
3723//qqq replace later with lseek()
183451cf 3724uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
84004dbf
RS		 3725{
3726 return nfsfh->offset;
3727}
3728
17ef62fa
RS		 3729
3730
3731/*
3732 * Get the maximum supported READ3 size by the server
3733 */
183451cf 3734uint64_t nfs_get_readmax(struct nfs_context *nfs)
17ef62fa
RS		 3735{
3736 return nfs->readmax;
3737}
3738
3739/*
3740 * Get the maximum supported WRITE3 size by the server
3741 */
183451cf 3742uint64_t nfs_get_writemax(struct nfs_context *nfs)
17ef62fa 3743{
e7f3a781 3744 return nfs->writemax;
17ef62fa 3745}
1896d37b
RS		 3746
3747void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
3748{
3749 va_list ap;
1e8994af 3750 char *str = NULL;
1896d37b 3751
1e8994af 3752 va_start(ap, error_string);
2606f9bb
RS		 3753 str = malloc(1024);
3754 vsnprintf(str, 1024, error_string, ap);
1896d37b
RS		 3755 if (nfs->rpc->error_string != NULL) {
3756 free(nfs->rpc->error_string);
3757 }
1896d37b 3758 nfs->rpc->error_string = str;
a8a1b858 3759 va_end(ap);
1896d37b 3760}
7f0242ca
RS		 3761
3762
3763
3764struct mount_cb_data {
3765 rpc_cb cb;
3766 void *private_data;
3767 char *server;
3768};
3769
3770static void free_mount_cb_data(struct mount_cb_data *data)
3771{
3772 if (data->server != NULL) {
3773 free(data->server);
3774 data->server = NULL;
3775 }
3776
3777 free(data);
3778}
3779
3780static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3781{
3782 struct mount_cb_data *data = private_data;
3783
f3a75078
RS		 3784 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3785
3786 if (status == RPC_STATUS_ERROR) {
7f0242ca
RS		 3787 data->cb(rpc, -EFAULT, command_data, data->private_data);
3788 free_mount_cb_data(data);
3789 return;
3790 }
3791 if (status == RPC_STATUS_CANCEL) {
3792 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3793 free_mount_cb_data(data);
3794 return;
3795 }
3796
3797 data->cb(rpc, 0, command_data, data->private_data);
3798 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
3799 rpc_set_error(rpc, "Failed to disconnect\n");
3800 }
3801 free_mount_cb_data(data);
3802}
3803
3804static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3805{
3806 struct mount_cb_data *data = private_data;
3807
f3a75078
RS		 3808 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3809
14a062eb
RS		 3810 /* Dont want any more callbacks even if the socket is closed */
3811 rpc->connect_cb = NULL;
3812
7f0242ca
RS		 3813 if (status == RPC_STATUS_ERROR) {
3814 data->cb(rpc, -EFAULT, command_data, data->private_data);
3815 free_mount_cb_data(data);
3816 return;
3817 }
3818 if (status == RPC_STATUS_CANCEL) {
3819 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3820 free_mount_cb_data(data);
3821 return;
3822 }
3823
3824 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
3825 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3826 free_mount_cb_data(data);
3827 return;
3828 }
3829}
3830
3831static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3832{
3833 struct mount_cb_data *data = private_data;
3834 uint32_t mount_port;
3835
f3a75078
RS		 3836 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3837
3838 if (status == RPC_STATUS_ERROR) {
7f0242ca
RS		 3839 data->cb(rpc, -EFAULT, command_data, data->private_data);
3840 free_mount_cb_data(data);
3841 return;
3842 }
3843 if (status == RPC_STATUS_CANCEL) {
3844 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3845 free_mount_cb_data(data);
3846 return;
3847 }
3848
3849 mount_port = *(uint32_t *)command_data;
3850 if (mount_port == 0) {
3851 rpc_set_error(rpc, "RPC error. Mount program is not available");
3852 data->cb(rpc, -ENOENT, command_data, data->private_data);
3853 free_mount_cb_data(data);
3854 return;
3855 }
3856
3857 rpc_disconnect(rpc, "normal disconnect");
3858 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
3859 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3860 free_mount_cb_data(data);
3861 return;
3862 }
3863}
3864
3865static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3866{
3867 struct mount_cb_data *data = private_data;
3868
f3a75078
RS		 3869 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3870
7f0242ca
RS		 3871 if (status == RPC_STATUS_ERROR) {
3872 data->cb(rpc, -EFAULT, command_data, data->private_data);
3873 free_mount_cb_data(data);
3874 return;
3875 }
3876 if (status == RPC_STATUS_CANCEL) {
3877 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3878 free_mount_cb_data(data);
3879 return;
3880 }
3881
5c6b1176 3882 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
7f0242ca
RS		 3883 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3884 free_mount_cb_data(data);
3885 return;
3886 }
3887}
3888
3889static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
3890{
3891 struct mount_cb_data *data = private_data;
3892
f3a75078
RS		 3893 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3894
14a062eb
RS		 3895 /* Dont want any more callbacks even if the socket is closed */
3896 rpc->connect_cb = NULL;
3897
7f0242ca
RS		 3898 if (status == RPC_STATUS_ERROR) {
3899 data->cb(rpc, -EFAULT, command_data, data->private_data);
3900 free_mount_cb_data(data);
3901 return;
3902 }
3903 if (status == RPC_STATUS_CANCEL) {
3904 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3905 free_mount_cb_data(data);
3906 return;
3907 }
3908
3909 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
3910 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3911 free_mount_cb_data(data);
3912 return;
3913 }
3914}
3915
3916int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
3917{
3918 struct mount_cb_data *data;
3919
f3a75078
RS		 3920 assert(rpc->magic == RPC_CONTEXT_MAGIC);
3921
7f0242ca
RS		 3922 data = malloc(sizeof(struct mount_cb_data));
3923 if (data == NULL) {
3924 return -1;
3925 }
ea98629a 3926 memset(data, 0, sizeof(struct mount_cb_data));
7f0242ca
RS		 3927 data->cb = cb;
3928 data->private_data = private_data;
3929 data->server = strdup(server);
3930 if (data->server == NULL) {
3931 free_mount_cb_data(data);
3932 return -1;
3933 }
3934 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
3935 free_mount_cb_data(data);
3936 return -1;
3937 }
3938
3939 return 0;
3940}
3941
df5af25f
RS		 3942struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
3943{
f3a75078 3944 assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
df5af25f
RS		 3945 return nfs->rpc;
3946}
3947
b077fdeb
RS		 3948const char *nfs_get_server(struct nfs_context *nfs) {
3949 return nfs->server;
3950}
3951
3952const char *nfs_get_export(struct nfs_context *nfs) {
3953 return nfs->export;
3954}
0ad9a1f1 3955
8724c833
RS		 3956const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
3957 return &nfs->rootfh;
3958}
fa3c25be
RS		 3959
3960struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
3961 return &nfsfh->fh;
3962}
libnfs Piment Noir Debian package repository