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Remove the _sync postfix for the synchronous functions
[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 */
20
21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24#include <strings.h>
25#include <errno.h>
26#include <sys/types.h>
27#include <sys/stat.h>
28#include <sys/statvfs.h>
29#include <utime.h>
30#include <unistd.h>
31#include <fcntl.h>
32#include "libnfs.h"
33#include "libnfs-raw.h"
34#include "libnfs-raw-mount.h"
35#include "libnfs-raw-nfs.h"
36
37struct nfsfh {
38 struct nfs_fh3 fh;
39 int is_sync;
40 off_t offset;
41};
42
43struct nfsdir {
44 struct nfsdirent *entries;
45 struct nfsdirent *current;
46};
47
48void nfs_free_nfsdir(struct nfsdir *nfsdir)
49{
50 while (nfsdir->entries) {
51 struct nfsdirent *dirent = nfsdir->entries->next;
52 if (nfsdir->entries->name != NULL) {
53 free(nfsdir->entries->name);
54 }
55 free(nfsdir->entries);
56 nfsdir->entries = dirent;
57 }
58 free(nfsdir);
59}
60
61struct nfs_context {
62 struct rpc_context *rpc;
63 char *server;
64 char *export;
65 struct nfs_fh3 rootfh;
17ef62fa
RS		 66 size_t readmax;
67 size_t writemax;
84004dbf
RS		 68};
69
70struct nfs_cb_data;
71typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
72
73struct nfs_cb_data {
74 struct nfs_context *nfs;
75 struct nfsfh *nfsfh;
76 char *saved_path, *path;
77
78 nfs_cb cb;
79 void *private_data;
80
81 continue_func continue_cb;
82 void *continue_data;
83 void (*free_continue_data)(void *);
84 int continue_int;
85
86 struct nfs_fh3 fh;
87};
88
89static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
90
91
92void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
93{
94 return rpc_set_auth(nfs->rpc, auth);
95}
96
97int nfs_get_fd(struct nfs_context *nfs)
98{
99 return rpc_get_fd(nfs->rpc);
100}
101
102int nfs_which_events(struct nfs_context *nfs)
103{
104 return rpc_which_events(nfs->rpc);
105}
106
107int nfs_service(struct nfs_context *nfs, int revents)
108{
109 return rpc_service(nfs->rpc, revents);
110}
111
112char *nfs_get_error(struct nfs_context *nfs)
113{
114 return rpc_get_error(nfs->rpc);
115};
116
117struct nfs_context *nfs_init_context(void)
118{
119 struct nfs_context *nfs;
120
121 nfs = malloc(sizeof(struct nfs_context));
122 if (nfs == NULL) {
123 printf("Failed to allocate nfs context\n");
124 return NULL;
125 }
126 nfs->rpc = rpc_init_context();
127 if (nfs->rpc == NULL) {
128 printf("Failed to allocate rpc sub-context\n");
129 free(nfs);
130 return NULL;
131 }
132
133 return nfs;
134}
135
136void nfs_destroy_context(struct nfs_context *nfs)
137{
138 rpc_destroy_context(nfs->rpc);
139 nfs->rpc = NULL;
140
141 if (nfs->server) {
142 free(nfs->server);
143 nfs->server = NULL;
144 }
145
146 if (nfs->export) {
147 free(nfs->export);
148 nfs->export = NULL;
149 }
150
151 if (nfs->rootfh.data.data_val != NULL) {
152 free(nfs->rootfh.data.data_val);
153 nfs->rootfh.data.data_val = NULL;
154 }
155
156 free(nfs);
157}
158
159void free_nfs_cb_data(struct nfs_cb_data *data)
160{
161 if (data->saved_path != NULL) {
162 free(data->saved_path);
163 data->saved_path = NULL;
164 }
165
166 if (data->continue_data != NULL) {
167 data->free_continue_data(data->continue_data);
168 data->continue_data = NULL;
169 }
170
171 if (data->fh.data.data_val != NULL) {
172 free(data->fh.data.data_val);
173 data->fh.data.data_val = NULL;
174 }
175
176 free(data);
177}
178
179
180
181
182
17ef62fa 183static void nfs_mount_10_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
84004dbf
RS		 184{
185 struct nfs_cb_data *data = private_data;
186 struct nfs_context *nfs = data->nfs;
187
188 if (status == RPC_STATUS_ERROR) {
189 data->cb(-EFAULT, nfs, command_data, data->private_data);
190 free_nfs_cb_data(data);
191 return;
192 }
193 if (status == RPC_STATUS_CANCEL) {
194 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
195 free_nfs_cb_data(data);
196 return;
197 }
198
199 data->cb(0, nfs, NULL, data->private_data);
200 free_nfs_cb_data(data);
201}
202
17ef62fa 203static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 204{
205 struct nfs_cb_data *data = private_data;
206 struct nfs_context *nfs = data->nfs;
17ef62fa 207 FSINFO3res *res = command_data;
84004dbf
RS		 208
209 if (status == RPC_STATUS_ERROR) {
210 data->cb(-EFAULT, nfs, command_data, data->private_data);
211 free_nfs_cb_data(data);
212 return;
213 }
214 if (status == RPC_STATUS_CANCEL) {
215 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
216 free_nfs_cb_data(data);
217 return;
218 }
219
17ef62fa
RS		 220 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
221 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
84004dbf 222
17ef62fa 223 if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
84004dbf
RS		 224 data->cb(-ENOMEM, nfs, command_data, data->private_data);
225 free_nfs_cb_data(data);
226 return;
227 }
228}
229
17ef62fa
RS		 230static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
231{
232 struct nfs_cb_data *data = private_data;
233 struct nfs_context *nfs = data->nfs;
234
235 if (status == RPC_STATUS_ERROR) {
236 data->cb(-EFAULT, nfs, command_data, data->private_data);
237 free_nfs_cb_data(data);
238 return;
239 }
240 if (status == RPC_STATUS_CANCEL) {
241 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
242 free_nfs_cb_data(data);
243 return;
244 }
245
246 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
247 data->cb(-ENOMEM, nfs, command_data, data->private_data);
248 free_nfs_cb_data(data);
249 return;
250 }
251}
252
253
84004dbf
RS		 254static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
255{
256 struct nfs_cb_data *data = private_data;
257 struct nfs_context *nfs = data->nfs;
258
259 if (status == RPC_STATUS_ERROR) {
260 data->cb(-EFAULT, nfs, command_data, data->private_data);
261 free_nfs_cb_data(data);
262 return;
263 }
264 if (status == RPC_STATUS_CANCEL) {
265 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
266 free_nfs_cb_data(data);
267 return;
268 }
269
270 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
271 data->cb(-ENOMEM, nfs, command_data, data->private_data);
272 free_nfs_cb_data(data);
273 return;
274 }
275}
276
277
278static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
279{
280 struct nfs_cb_data *data = private_data;
281 struct nfs_context *nfs = data->nfs;
282 mountres3 *res;
283
284 if (status == RPC_STATUS_ERROR) {
285 data->cb(-EFAULT, nfs, command_data, data->private_data);
286 free_nfs_cb_data(data);
287 return;
288 }
289 if (status == RPC_STATUS_CANCEL) {
290 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
291 free_nfs_cb_data(data);
292 return;
293 }
294
295 res = command_data;
296 if (res->fhs_status != MNT3_OK) {
297 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));
298 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
299 free_nfs_cb_data(data);
300 return;
301 }
302
303 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
304 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
305 if (nfs->rootfh.data.data_val == NULL) {
306 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
307 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
308 free_nfs_cb_data(data);
309 return;
310 }
311 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
312
313 rpc_disconnect(rpc, "normal disconnect");
314 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
315 data->cb(-ENOMEM, nfs, command_data, data->private_data);
316 free_nfs_cb_data(data);
317 return;
318 }
319}
320
321
322static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
323{
324 struct nfs_cb_data *data = private_data;
325 struct nfs_context *nfs = data->nfs;
326
327 if (status == RPC_STATUS_ERROR) {
328 data->cb(-EFAULT, nfs, command_data, data->private_data);
329 free_nfs_cb_data(data);
330 return;
331 }
332 if (status == RPC_STATUS_CANCEL) {
333 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
334 free_nfs_cb_data(data);
335 return;
336 }
337
338 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
339 data->cb(-ENOMEM, nfs, command_data, data->private_data);
340 free_nfs_cb_data(data);
341 return;
342 }
343}
344
345static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
346{
347 struct nfs_cb_data *data = private_data;
348 struct nfs_context *nfs = data->nfs;
349
350 if (status == RPC_STATUS_ERROR) {
351 data->cb(-EFAULT, nfs, command_data, data->private_data);
352 free_nfs_cb_data(data);
353 return;
354 }
355 if (status == RPC_STATUS_CANCEL) {
356 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
357 free_nfs_cb_data(data);
358 return;
359 }
360
361 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
362 data->cb(-ENOMEM, nfs, command_data, data->private_data);
363 free_nfs_cb_data(data);
364 return;
365 }
366}
367
368static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
369{
370 struct nfs_cb_data *data = private_data;
371 struct nfs_context *nfs = data->nfs;
372 uint32_t mount_port;
373
374 if (status == RPC_STATUS_ERROR) {
375 data->cb(-EFAULT, nfs, command_data, data->private_data);
376 free_nfs_cb_data(data);
377 return;
378 }
379 if (status == RPC_STATUS_CANCEL) {
380 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
381 free_nfs_cb_data(data);
382 return;
383 }
384
385 mount_port = *(uint32_t *)command_data;
386 if (mount_port == 0) {
387 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
388 data->cb(-ENOENT, nfs, command_data, data->private_data);
389 free_nfs_cb_data(data);
390 return;
391 }
392
393 rpc_disconnect(rpc, "normal disconnect");
394 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
395 data->cb(-ENOMEM, nfs, command_data, data->private_data);
396 free_nfs_cb_data(data);
397 return;
398 }
399}
400
401
402static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
403{
404 struct nfs_cb_data *data = private_data;
405 struct nfs_context *nfs = data->nfs;
406
407 if (status == RPC_STATUS_ERROR) {
408 data->cb(-EFAULT, nfs, command_data, data->private_data);
409 free_nfs_cb_data(data);
410 return;
411 }
412 if (status == RPC_STATUS_CANCEL) {
413 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
414 free_nfs_cb_data(data);
415 return;
416 }
417
418 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, nfs_mount_3_cb, private_data) != 0) {
419 data->cb(-ENOMEM, nfs, command_data, data->private_data);
420 free_nfs_cb_data(data);
421 return;
422 }
423}
424
425static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
426{
427 struct nfs_cb_data *data = private_data;
428 struct nfs_context *nfs = data->nfs;
429
430 if (status == RPC_STATUS_ERROR) {
431 data->cb(-EFAULT, nfs, command_data, data->private_data);
432 free_nfs_cb_data(data);
433 return;
434 }
435 if (status == RPC_STATUS_CANCEL) {
436 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
437 free_nfs_cb_data(data);
438 return;
439 }
440
441 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
442 data->cb(-ENOMEM, nfs, command_data, data->private_data);
443 free_nfs_cb_data(data);
444 return;
445 }
446}
447
448/*
449 * Async call for mounting an nfs share and geting the root filehandle
450 */
451int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
452{
453 struct nfs_cb_data *data;
454
455 data = malloc(sizeof(struct nfs_cb_data));
456 if (data == NULL) {
457 rpc_set_error(nfs->rpc, "out of memory");
458 printf("failed to allocate memory for nfs mount data\n");
459 return -1;
460 }
461 bzero(data, sizeof(struct nfs_cb_data));
462 nfs->server = strdup(server);
463 nfs->export = strdup(export);
464 data->nfs = nfs;
465 data->cb = cb;
466 data->private_data = private_data;
467
468 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
469 printf("Failed to start connection\n");
470 free_nfs_cb_data(data);
471 return -4;
472 }
473
474 return 0;
475}
476
477
478
479/*
480 * Functions to first look up a path, component by component, and then finally call a specific function once
481 * the filehandle for the final component is found.
482 */
483static void nfs_lookup_path_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
484{
485 struct nfs_cb_data *data = private_data;
486 struct nfs_context *nfs = data->nfs;
487 LOOKUP3res *res;
488
489 if (status == RPC_STATUS_ERROR) {
490 data->cb(-EFAULT, nfs, command_data, data->private_data);
491 free_nfs_cb_data(data);
492 return;
493 }
494 if (status == RPC_STATUS_CANCEL) {
495 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
496 free_nfs_cb_data(data);
497 return;
498 }
499
500 res = command_data;
501 if (res->status != NFS3_OK) {
502 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));
503 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
504 free_nfs_cb_data(data);
505 return;
506 }
507
508 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
509 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
510 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
511 free_nfs_cb_data(data);
512 return;
513 }
514}
515
516static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
517{
518 char *path, *str;
519
520 while (*data->path == '/') {
521 data->path++;
522 }
523
524 path = data->path;
525 str = index(path, '/');
526 if (str != NULL) {
527 *str = 0;
528 data->path = str+1;
529 } else {
530 while (*data->path != 0) {
531 data->path++;
532 }
533 }
534
535 if (*path == 0) {
536 data->fh.data.data_len = fh->data.data_len;
537 data->fh.data.data_val = malloc(data->fh.data.data_len);
538 if (data->fh.data.data_val == NULL) {
539 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
540 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
541 free_nfs_cb_data(data);
542 return -1;
543 }
544 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
545 data->continue_cb(nfs, data);
546 return 0;
547 }
548
549 if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
550 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
551 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
552 free_nfs_cb_data(data);
553 return -1;
554 }
555 return 0;
556}
557
558static 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)
559{
560 struct nfs_cb_data *data;
561
562 if (path[0] != '/') {
563 rpc_set_error(nfs->rpc, "Pathname is not absulute %s", path);
564 return -1;
565 }
566
567 data = malloc(sizeof(struct nfs_cb_data));
568 if (data == NULL) {
569 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
570 printf("failed to allocate memory for nfs cb data\n");
571 free_nfs_cb_data(data);
572 return -2;
573 }
574 bzero(data, sizeof(struct nfs_cb_data));
575 data->nfs = nfs;
576 data->cb = cb;
577 data->continue_cb = continue_cb;
578 data->continue_data = continue_data;
579 data->free_continue_data = free_continue_data;
580 data->continue_int = continue_int;
581 data->private_data = private_data;
582 data->saved_path = strdup(path);
583 if (data->saved_path == NULL) {
584 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
585 printf("failed to allocate memory for path string\n");
586 free_nfs_cb_data(data);
587 return -2;
588 }
589 data->path = data->saved_path;
590
591 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
592 printf("failed to lookup path\n");
593 /* return 0 here since the callback will be invoked if there is a failure */
594 return 0;
595 }
596 return 0;
597}
598
599
600
601
602
603/*
604 * Async stat()
605 */
606static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
607{
608 GETATTR3res *res;
609 struct nfs_cb_data *data = private_data;
610 struct nfs_context *nfs = data->nfs;
611 struct stat st;
612
613 if (status == RPC_STATUS_ERROR) {
614 data->cb(-EFAULT, nfs, command_data, data->private_data);
615 free_nfs_cb_data(data);
616 return;
617 }
618 if (status == RPC_STATUS_CANCEL) {
619 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
620 free_nfs_cb_data(data);
621 return;
622 }
623
624 res = command_data;
625 if (res->status != NFS3_OK) {
626 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));
627 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
628 free_nfs_cb_data(data);
629 return;
630 }
631
632 st.st_dev = -1;
633 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
634 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
635 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
636 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
637 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
638 st.st_rdev = 0;
639 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
640 st.st_blksize = 4096;
641 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
642 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
643 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
644 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
645
646 data->cb(0, nfs, &st, data->private_data);
647 free_nfs_cb_data(data);
648}
649
650static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
651{
652 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
653 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
654 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
655 free_nfs_cb_data(data);
656 return -1;
657 }
658 return 0;
659}
660
661int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
662{
663 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
664 printf("Out of memory: failed to start parsing the path components\n");
665 return -1;
666 }
667
668 return 0;
669}
670
671
672
673
674
675/*
676 * Async open()
677 */
678static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
679{
680 ACCESS3res *res;
681 struct nfs_cb_data *data = private_data;
682 struct nfs_context *nfs = data->nfs;
683 struct nfsfh *nfsfh;
684 unsigned int nfsmode = 0;
685
686 if (status == RPC_STATUS_ERROR) {
687 data->cb(-EFAULT, nfs, command_data, data->private_data);
688 free_nfs_cb_data(data);
689 return;
690 }
691 if (status == RPC_STATUS_CANCEL) {
692 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
693 free_nfs_cb_data(data);
694 return;
695 }
696
697 res = command_data;
698 if (res->status != NFS3_OK) {
699 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));
700 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
701 free_nfs_cb_data(data);
702 return;
703 }
704
705 if (data->continue_int & O_WRONLY) {
706 nfsmode |= ACCESS3_MODIFY;
707 }
708 if (data->continue_int & O_RDWR) {
709 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
710 }
711 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
712 nfsmode |= ACCESS3_READ;
713 }
714
715
716 if (res->ACCESS3res_u.resok.access != nfsmode) {
717 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
718 nfsmode&ACCESS3_READ?'r':'-',
719 nfsmode&ACCESS3_MODIFY?'w':'-',
720 nfsmode&ACCESS3_EXECUTE?'x':'-',
721 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
722 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
723 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
724 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
725 free_nfs_cb_data(data);
726 return;
727 }
728
729 nfsfh = malloc(sizeof(struct nfsfh));
730 if (nfsfh == NULL) {
731 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
732 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
733 free_nfs_cb_data(data);
734 return;
735 }
736 bzero(nfsfh, sizeof(struct nfsfh));
737
738 if (data->continue_int & O_SYNC) {
739 nfsfh->is_sync = 1;
740 }
741
742 /* steal the filehandle */
743 nfsfh->fh.data.data_len = data->fh.data.data_len;
744 nfsfh->fh.data.data_val = data->fh.data.data_val;
745 data->fh.data.data_val = NULL;
746
747 data->cb(0, nfs, nfsfh, data->private_data);
748 free_nfs_cb_data(data);
749}
750
751static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
752{
753 int nfsmode = 0;
754
755 if (data->continue_int & O_WRONLY) {
756 nfsmode |= ACCESS3_MODIFY;
757 }
758 if (data->continue_int & O_RDWR) {
759 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
760 }
761 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
762 nfsmode |= ACCESS3_READ;
763 }
764
765 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
766 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
767 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
768 free_nfs_cb_data(data);
769 return -1;
770 }
771 return 0;
772}
773
774int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
775{
776 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
777 printf("Out of memory: failed to start parsing the path components\n");
778 return -2;
779 }
780
781 return 0;
782}
783
784
785
786
787
788/*
789 * Async pread()
790 */
791static void nfs_pread_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
792{
793 struct nfs_cb_data *data = private_data;
794 struct nfs_context *nfs = data->nfs;
795 READ3res *res;
796
797 if (status == RPC_STATUS_ERROR) {
798 data->cb(-EFAULT, nfs, command_data, data->private_data);
799 free_nfs_cb_data(data);
800 return;
801 }
802 if (status == RPC_STATUS_CANCEL) {
803 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
804 free_nfs_cb_data(data);
805 return;
806 }
807
808 res = command_data;
809 if (res->status != NFS3_OK) {
810 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
811 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
812 free_nfs_cb_data(data);
813 return;
814 }
815
816 data->nfsfh->offset += res->READ3res_u.resok.count;
817 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
818 free_nfs_cb_data(data);
819}
820
821int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, nfs_cb cb, void *private_data)
822{
823 struct nfs_cb_data *data;
824
825 data = malloc(sizeof(struct nfs_cb_data));
826 if (data == NULL) {
827 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
828 printf("failed to allocate memory for nfs cb data\n");
829 free_nfs_cb_data(data);
830 return -1;
831 }
832 bzero(data, sizeof(struct nfs_cb_data));
833 data->nfs = nfs;
834 data->cb = cb;
835 data->private_data = private_data;
836 data->nfsfh = nfsfh;
837
838 nfsfh->offset = offset;
839 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
840 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
841 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
842 free_nfs_cb_data(data);
843 return -1;
844 }
845 return 0;
846}
847
848/*
849 * Async read()
850 */
851int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, nfs_cb cb, void *private_data)
852{
853 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
854}
855
856
857
858/*
859 * Async pwrite()
860 */
861static void nfs_pwrite_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
862{
863 struct nfs_cb_data *data = private_data;
864 struct nfs_context *nfs = data->nfs;
865 WRITE3res *res;
866
867 if (status == RPC_STATUS_ERROR) {
868 data->cb(-EFAULT, nfs, command_data, data->private_data);
869 free_nfs_cb_data(data);
870 return;
871 }
872 if (status == RPC_STATUS_CANCEL) {
873 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
874 free_nfs_cb_data(data);
875 return;
876 }
877
878 res = command_data;
879 if (res->status != NFS3_OK) {
880 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
881 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
882 free_nfs_cb_data(data);
883 return;
884 }
885
886 data->nfsfh->offset += res->WRITE3res_u.resok.count;
887 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
888 free_nfs_cb_data(data);
889}
890
891int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf, nfs_cb cb, void *private_data)
892{
893 struct nfs_cb_data *data;
894
895 data = malloc(sizeof(struct nfs_cb_data));
896 if (data == NULL) {
897 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
898 printf("failed to allocate memory for nfs cb data\n");
899 free_nfs_cb_data(data);
900 return -1;
901 }
902 bzero(data, sizeof(struct nfs_cb_data));
903 data->nfs = nfs;
904 data->cb = cb;
905 data->private_data = private_data;
906 data->nfsfh = nfsfh;
907
908 nfsfh->offset = offset;
909 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
910 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
911 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
912 free_nfs_cb_data(data);
913 return -1;
914 }
915 return 0;
916}
917
918/*
919 * Async write()
920 */
921int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf, nfs_cb cb, void *private_data)
922{
923 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
924}
925
926
927
928
929/*
930 * close
931 */
932
933int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
934{
935 if (nfsfh->fh.data.data_val != NULL){
936 free(nfsfh->fh.data.data_val);
937 nfsfh->fh.data.data_val = NULL;
938 }
939 free(nfsfh);
940
941 cb(0, nfs, NULL, private_data);
942 return 0;
943};
944
945
946
947
948
949/*
950 * Async fstat()
951 */
952int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
953{
954 struct nfs_cb_data *data;
955
956 data = malloc(sizeof(struct nfs_cb_data));
957 if (data == NULL) {
958 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
959 printf("failed to allocate memory for nfs cb data\n");
960 free_nfs_cb_data(data);
961 return -1;
962 }
963 bzero(data, sizeof(struct nfs_cb_data));
964 data->nfs = nfs;
965 data->cb = cb;
966 data->private_data = private_data;
967
968 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
969 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
970 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
971 free_nfs_cb_data(data);
972 return -1;
973 }
974 return 0;
975}
976
977
978
979/*
980 * Async fsync()
981 */
982static void nfs_fsync_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
983{
984 struct nfs_cb_data *data = private_data;
985 struct nfs_context *nfs = data->nfs;
986 COMMIT3res *res;
987
988 if (status == RPC_STATUS_ERROR) {
989 data->cb(-EFAULT, nfs, command_data, data->private_data);
990 free_nfs_cb_data(data);
991 return;
992 }
993 if (status == RPC_STATUS_CANCEL) {
994 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
995 free_nfs_cb_data(data);
996 return;
997 }
998
999 res = command_data;
1000 if (res->status != NFS3_OK) {
1001 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1002 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1003 free_nfs_cb_data(data);
1004 return;
1005 }
1006
1007 data->cb(0, nfs, NULL, data->private_data);
1008 free_nfs_cb_data(data);
1009}
1010
1011int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1012{
1013 struct nfs_cb_data *data;
1014
1015 data = malloc(sizeof(struct nfs_cb_data));
1016 if (data == NULL) {
1017 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1018 printf("failed to allocate memory for nfs cb data\n");
1019 free_nfs_cb_data(data);
1020 return -1;
1021 }
1022 bzero(data, sizeof(struct nfs_cb_data));
1023 data->nfs = nfs;
1024 data->cb = cb;
1025 data->private_data = private_data;
1026
1027 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1028 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1029 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1030 free_nfs_cb_data(data);
1031 return -1;
1032 }
1033 return 0;
1034}
1035
1036
1037
1038
1039/*
1040 * Async ftruncate()
1041 */
1042static void nfs_ftruncate_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1043{
1044 struct nfs_cb_data *data = private_data;
1045 struct nfs_context *nfs = data->nfs;
1046 SETATTR3res *res;
1047
1048 if (status == RPC_STATUS_ERROR) {
1049 data->cb(-EFAULT, nfs, command_data, data->private_data);
1050 free_nfs_cb_data(data);
1051 return;
1052 }
1053 if (status == RPC_STATUS_CANCEL) {
1054 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1055 free_nfs_cb_data(data);
1056 return;
1057 }
1058
1059 res = command_data;
1060 if (res->status != NFS3_OK) {
1061 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1062 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1063 free_nfs_cb_data(data);
1064 return;
1065 }
1066
1067 data->cb(0, nfs, NULL, data->private_data);
1068 free_nfs_cb_data(data);
1069}
1070
1071int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length, nfs_cb cb, void *private_data)
1072{
1073 struct nfs_cb_data *data;
1074 SETATTR3args args;
1075
1076 data = malloc(sizeof(struct nfs_cb_data));
1077 if (data == NULL) {
1078 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
1079 printf("failed to allocate memory for nfs cb data\n");
1080 free_nfs_cb_data(data);
1081 return -1;
1082 }
1083 bzero(data, sizeof(struct nfs_cb_data));
1084 data->nfs = nfs;
1085 data->cb = cb;
1086 data->private_data = private_data;
1087
1088 bzero(&args, sizeof(SETATTR3args));
1089 args.object.data.data_len = nfsfh->fh.data.data_len;
1090 args.object.data.data_val = nfsfh->fh.data.data_val;
1091 args.new_attributes.size.set_it = 1;
1092 args.new_attributes.size.set_size3_u.size = length;
1093
1094 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1095 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1096 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1097 free_nfs_cb_data(data);
1098 return -1;
1099 }
1100 return 0;
1101}
1102
1103
1104/*
1105 * Async truncate()
1106 */
1107static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1108{
1109 off_t offset = data->continue_int;
1110 struct nfsfh nfsfh;
1111
1112 nfsfh.fh.data.data_val = data->fh.data.data_val;
1113 nfsfh.fh.data.data_len = data->fh.data.data_len;
1114
1115 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1116 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1117 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1118 free_nfs_cb_data(data);
1119 return -1;
1120 }
1121 free_nfs_cb_data(data);
1122 return 0;
1123}
1124
1125int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length, nfs_cb cb, void *private_data)
1126{
1127 off_t offset;
1128
1129 offset = length;
1130
1131 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
1132 printf("Out of memory: failed to start parsing the path components\n");
1133 return -2;
1134 }
1135
1136 return 0;
1137}
1138
1139
1140
1141
1142/*
1143 * Async mkdir()
1144 */
1145static void nfs_mkdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1146{
1147 MKDIR3res *res;
1148 struct nfs_cb_data *data = private_data;
1149 struct nfs_context *nfs = data->nfs;
1150 char *str = data->continue_data;
1151
1152 str = &str[strlen(str) + 1];
1153
1154 if (status == RPC_STATUS_ERROR) {
1155 data->cb(-EFAULT, nfs, command_data, data->private_data);
1156 free_nfs_cb_data(data);
1157 return;
1158 }
1159 if (status == RPC_STATUS_CANCEL) {
1160 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1161 free_nfs_cb_data(data);
1162 return;
1163 }
1164
1165 res = command_data;
1166 if (res->status != NFS3_OK) {
1167 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));
1168 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1169 free_nfs_cb_data(data);
1170 return;
1171 }
1172
1173 data->cb(0, nfs, NULL, data->private_data);
1174 free_nfs_cb_data(data);
1175}
1176
1177static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1178{
1179 char *str = data->continue_data;
1180
1181 str = &str[strlen(str) + 1];
1182
1183 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &data->fh, str, data) != 0) {
1184 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1185 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1186 free_nfs_cb_data(data);
1187 return -1;
1188 }
1189 return 0;
1190}
1191
1192int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1193{
1194 char *new_path;
1195 char *ptr;
1196
1197 new_path = strdup(path);
1198 if (new_path == NULL) {
1199 printf("Out of memory, failed to allocate mode buffer for path\n");
1200 return -1;
1201 }
1202
1203 ptr = rindex(new_path, '/');
1204 if (ptr == NULL) {
1205 printf("Invalid path %s\n", path);
1206 return -2;
1207 }
1208 *ptr = 0;
1209
1210 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1211 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
1212 printf("Out of memory: failed to start parsing the path components\n");
1213 return -3;
1214 }
1215
1216 return 0;
1217}
1218
1219
1220
1221
1222
1223/*
1224 * Async rmdir()
1225 */
1226static void nfs_rmdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1227{
1228 RMDIR3res *res;
1229 struct nfs_cb_data *data = private_data;
1230 struct nfs_context *nfs = data->nfs;
1231 char *str = data->continue_data;
1232
1233 str = &str[strlen(str) + 1];
1234
1235 if (status == RPC_STATUS_ERROR) {
1236 data->cb(-EFAULT, nfs, command_data, data->private_data);
1237 free_nfs_cb_data(data);
1238 return;
1239 }
1240 if (status == RPC_STATUS_CANCEL) {
1241 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1242 free_nfs_cb_data(data);
1243 return;
1244 }
1245
1246 res = command_data;
1247 if (res->status != NFS3_OK) {
1248 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));
1249 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1250 free_nfs_cb_data(data);
1251 return;
1252 }
1253
1254 data->cb(0, nfs, NULL, data->private_data);
1255 free_nfs_cb_data(data);
1256}
1257
1258static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1259{
1260 char *str = data->continue_data;
1261
1262 str = &str[strlen(str) + 1];
1263
1264 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1265 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1266 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1267 free_nfs_cb_data(data);
1268 return -1;
1269 }
1270 return 0;
1271}
1272
1273int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1274{
1275 char *new_path;
1276 char *ptr;
1277
1278 new_path = strdup(path);
1279 if (new_path == NULL) {
1280 printf("Out of memory, failed to allocate mode buffer for path\n");
1281 return -1;
1282 }
1283
1284 ptr = rindex(new_path, '/');
1285 if (ptr == NULL) {
1286 printf("Invalid path %s\n", path);
1287 return -2;
1288 }
1289 *ptr = 0;
1290
1291 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1292 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
1293 printf("Out of memory: failed to start parsing the path components\n");
1294 return -3;
1295 }
1296
1297 return 0;
1298}
1299
1300
1301
1302
1303/*
1304 * Async creat()
1305 */
1306static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1307{
1308 LOOKUP3res *res;
1309 struct nfs_cb_data *data = private_data;
1310 struct nfs_context *nfs = data->nfs;
1311 struct nfsfh *nfsfh;
1312 char *str = data->continue_data;
1313
1314 if (status == RPC_STATUS_ERROR) {
1315 data->cb(-EFAULT, nfs, command_data, data->private_data);
1316 free_nfs_cb_data(data);
1317 return;
1318 }
1319 if (status == RPC_STATUS_CANCEL) {
1320 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1321 free_nfs_cb_data(data);
1322 return;
1323 }
1324
1325 str = &str[strlen(str) + 1];
1326 res = command_data;
1327 if (res->status != NFS3_OK) {
1328 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));
1329 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1330
1331 return;
1332 }
1333
1334 nfsfh = malloc(sizeof(struct nfsfh));
1335 if (nfsfh == NULL) {
1336 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1337 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1338 free_nfs_cb_data(data);
1339 return;
1340 }
1341 bzero(nfsfh, sizeof(struct nfsfh));
1342
1343 /* steal the filehandle */
1344 nfsfh->fh.data.data_len = data->fh.data.data_len;
1345 nfsfh->fh.data.data_val = data->fh.data.data_val;
1346 data->fh.data.data_val = NULL;
1347
1348 data->cb(0, nfs, nfsfh, data->private_data);
1349 free_nfs_cb_data(data);
1350}
1351
1352
1353
1354static void nfs_creat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1355{
1356 CREATE3res *res;
1357 struct nfs_cb_data *data = private_data;
1358 struct nfs_context *nfs = data->nfs;
1359 char *str = data->continue_data;
1360
1361 if (status == RPC_STATUS_ERROR) {
1362 data->cb(-EFAULT, nfs, command_data, data->private_data);
1363 free_nfs_cb_data(data);
1364 return;
1365 }
1366 if (status == RPC_STATUS_CANCEL) {
1367 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1368 free_nfs_cb_data(data);
1369 return;
1370 }
1371
1372 str = &str[strlen(str) + 1];
1373 res = command_data;
1374 if (res->status != NFS3_OK) {
1375 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));
1376 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1377
1378 return;
1379 }
1380
1381 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
1382 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
1383 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1384 free_nfs_cb_data(data);
1385 return;
1386 }
1387 return;
1388}
1389
1390static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1391{
1392 char *str = data->continue_data;
1393
1394 str = &str[strlen(str) + 1];
1395
1396 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &data->fh, str, data->continue_int, data) != 0) {
1397 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
1398 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1399 free_nfs_cb_data(data);
1400 return -1;
1401 }
1402 return 0;
1403}
1404
1405int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1406{
1407 char *new_path;
1408 char *ptr;
1409
1410 new_path = strdup(path);
1411 if (new_path == NULL) {
1412 printf("Out of memory, failed to allocate mode buffer for path\n");
1413 return -1;
1414 }
1415
1416 ptr = rindex(new_path, '/');
1417 if (ptr == NULL) {
1418 printf("Invalid path %s\n", path);
1419 return -2;
1420 }
1421 *ptr = 0;
1422
1423 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1424 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
1425 printf("Out of memory: failed to start parsing the path components\n");
1426 return -3;
1427 }
1428
1429 return 0;
1430}
1431
1432
1433
1434
1435/*
1436 * Async unlink()
1437 */
1438static void nfs_unlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1439{
1440 REMOVE3res *res;
1441 struct nfs_cb_data *data = private_data;
1442 struct nfs_context *nfs = data->nfs;
1443 char *str = data->continue_data;
1444
1445 str = &str[strlen(str) + 1];
1446
1447 if (status == RPC_STATUS_ERROR) {
1448 data->cb(-EFAULT, nfs, command_data, data->private_data);
1449 free_nfs_cb_data(data);
1450 return;
1451 }
1452 if (status == RPC_STATUS_CANCEL) {
1453 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1454 free_nfs_cb_data(data);
1455 return;
1456 }
1457
1458 res = command_data;
1459 if (res->status != NFS3_OK) {
1460 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));
1461 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1462 free_nfs_cb_data(data);
1463 return;
1464 }
1465
1466 data->cb(0, nfs, NULL, data->private_data);
1467 free_nfs_cb_data(data);
1468}
1469
1470static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1471{
1472 char *str = data->continue_data;
1473
1474 str = &str[strlen(str) + 1];
1475
1476 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
1477 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
1478 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1479 free_nfs_cb_data(data);
1480 return -1;
1481 }
1482 return 0;
1483}
1484
1485int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1486{
1487 char *new_path;
1488 char *ptr;
1489
1490 new_path = strdup(path);
1491 if (new_path == NULL) {
1492 printf("Out of memory, failed to allocate mode buffer for path\n");
1493 return -1;
1494 }
1495
1496 ptr = rindex(new_path, '/');
1497 if (ptr == NULL) {
1498 printf("Invalid path %s\n", path);
1499 return -2;
1500 }
1501 *ptr = 0;
1502
1503 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1504 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
1505 printf("Out of memory: failed to start parsing the path components\n");
1506 return -3;
1507 }
1508
1509 return 0;
1510}
1511
1512
1513
1514
1515
1516/*
1517 * Async opendir()
1518 */
1519static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1520{
1521 READDIR3res *res;
1522 struct nfs_cb_data *data = private_data;
1523 struct nfs_context *nfs = data->nfs;
1524 struct nfsdir *nfsdir = data->continue_data;;
1525 struct entry3 *entry;
1526 uint64_t cookie;
1527
1528 if (status == RPC_STATUS_ERROR) {
1529 data->cb(-EFAULT, nfs, command_data, data->private_data);
1530 nfs_free_nfsdir(nfsdir);
1531 data->continue_data = NULL;
1532 free_nfs_cb_data(data);
1533 return;
1534 }
1535 if (status == RPC_STATUS_CANCEL) {
1536 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1537 nfs_free_nfsdir(nfsdir);
1538 data->continue_data = NULL;
1539 free_nfs_cb_data(data);
1540 return;
1541 }
1542
1543 res = command_data;
1544 if (res->status != NFS3_OK) {
1545 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));
1546 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1547 nfs_free_nfsdir(nfsdir);
1548 data->continue_data = NULL;
1549 free_nfs_cb_data(data);
1550 return;
1551 }
1552
1553 entry =res->READDIR3res_u.resok.reply.entries;
1554 while (entry != NULL) {
1555 struct nfsdirent *nfsdirent;
1556
1557 nfsdirent = malloc(sizeof(struct nfsdirent));
1558 if (nfsdirent == NULL) {
1559 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
1560 nfs_free_nfsdir(nfsdir);
1561 data->continue_data = NULL;
1562 free_nfs_cb_data(data);
1563 return;
1564 }
1565 bzero(nfsdirent, sizeof(struct nfsdirent));
1566 nfsdirent->name = strdup(entry->name);
1567 if (nfsdirent->name == NULL) {
1568 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
1569 nfs_free_nfsdir(nfsdir);
1570 data->continue_data = NULL;
1571 free_nfs_cb_data(data);
1572 return;
1573 }
1574 nfsdirent->inode = entry->fileid;
1575 nfsdirent->next = nfsdir->entries;
1576 nfsdir->entries = nfsdirent;
1577
1578 cookie = entry->cookie;
1579 entry = entry->nextentry;
1580 }
1581
1582 if (res->READDIR3res_u.resok.reply.eof == 0) {
1583 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 20000, data) != 0) {
1584 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
1585 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1586 nfs_free_nfsdir(nfsdir);
1587 data->continue_data = NULL;
1588 free_nfs_cb_data(data);
1589 return;
1590 }
1591 return;
1592 }
1593
1594 /* steal the dirhandle */
1595 data->continue_data = NULL;
1596 nfsdir->current = nfsdir->entries;
1597
1598 data->cb(0, nfs, nfsdir, data->private_data);
1599 free_nfs_cb_data(data);
1600}
1601
1602static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1603{
1604 cookieverf3 cv;
1605
1606 bzero(cv, sizeof(cookieverf3));
1607 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 20000, data) != 0) {
1608 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
1609 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1610 free_nfs_cb_data(data);
1611 return -1;
1612 }
1613 return 0;
1614}
1615
1616int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1617{
1618 struct nfsdir *nfsdir;
1619
1620 nfsdir = malloc(sizeof(struct nfsdir));
1621 if (nfsdir == NULL) {
1622 printf("failed to allocate buffer for nfsdir\n");
1623 return -1;
1624 }
1625 bzero(nfsdir, sizeof(struct nfsdir));
1626
1627 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
1628 printf("Out of memory: failed to start parsing the path components\n");
1629 return -2;
1630 }
1631
1632 return 0;
1633}
1634
1635
1636struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1637{
1638 struct nfsdirent *nfsdirent = nfsdir->current;
1639
1640 if (nfsdir->current != NULL) {
1641 nfsdir->current = nfsdir->current->next;
1642 }
1643 return nfsdirent;
1644}
1645
1646
1647void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1648{
1649 nfs_free_nfsdir(nfsdir);
1650}
1651
1652
1653
1654
1655
1656
1657
1658/*
1659 * Async lseek()
1660 */
1661struct lseek_cb_data {
1662 struct nfs_context *nfs;
1663 struct nfsfh *nfsfh;
1664 off_t offset;
1665 nfs_cb cb;
1666 void *private_data;
1667};
1668
1669static void nfs_lseek_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1670{
1671 GETATTR3res *res;
1672 struct lseek_cb_data *data = private_data;
1673 struct nfs_context *nfs = data->nfs;
1674
1675 if (status == RPC_STATUS_ERROR) {
1676 data->cb(-EFAULT, nfs, command_data, data->private_data);
1677 free(data);
1678 return;
1679 }
1680 if (status == RPC_STATUS_CANCEL) {
1681 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1682 free(data);
1683 return;
1684 }
1685
1686 res = command_data;
1687 if (res->status != NFS3_OK) {
1688 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1689 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1690 free(data);
1691 return;
1692 }
1693
1694 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
1695 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
1696 free(data);
1697}
1698
1699int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, nfs_cb cb, void *private_data)
1700{
1701 struct lseek_cb_data *data;
1702
1703 if (whence == SEEK_SET) {
1704 nfsfh->offset = offset;
1705 cb(0, nfs, &nfsfh->offset, private_data);
1706 return 0;
1707 }
1708 if (whence == SEEK_CUR) {
1709 nfsfh->offset += offset;
1710 cb(0, nfs, &nfsfh->offset, private_data);
1711 return 0;
1712 }
1713
1714 data = malloc(sizeof(struct lseek_cb_data));
1715 if (data == NULL) {
1716 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
1717 return -1;
1718 }
1719
1720 data->nfs = nfs;
1721 data->nfsfh = nfsfh;
1722 data->offset = offset;
1723 data->cb = cb;
1724 data->private_data = private_data;
1725
1726 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
1727 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
1728 free(data);
1729 return -2;
1730 }
1731 return 0;
1732}
1733
1734
1735
1736
1737/*
1738 * Async statvfs()
1739 */
1740static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1741{
1742 FSSTAT3res *res;
1743 struct nfs_cb_data *data = private_data;
1744 struct nfs_context *nfs = data->nfs;
1745 struct statvfs svfs;
1746
1747 if (status == RPC_STATUS_ERROR) {
1748 data->cb(-EFAULT, nfs, command_data, data->private_data);
1749 free_nfs_cb_data(data);
1750 return;
1751 }
1752 if (status == RPC_STATUS_CANCEL) {
1753 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1754 free_nfs_cb_data(data);
1755 return;
1756 }
1757
1758 res = command_data;
1759 if (res->status != NFS3_OK) {
1760 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));
1761 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1762 free_nfs_cb_data(data);
1763 return;
1764 }
1765
1766 svfs.f_bsize = 4096;
1767 svfs.f_frsize = 4096;
1768 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
1769 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
1770 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
1771 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
1772 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
1773 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
1774 svfs.f_fsid = 0;
1775 svfs.f_flag = 0;
1776 svfs.f_namemax = 256;
1777
1778 data->cb(0, nfs, &svfs, data->private_data);
1779 free_nfs_cb_data(data);
1780}
1781
1782static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1783{
1784 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
1785 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
1786 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1787 free_nfs_cb_data(data);
1788 return -1;
1789 }
1790 return 0;
1791}
1792
1793int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1794{
1795 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
1796 printf("Out of memory: failed to start parsing the path components\n");
1797 return -1;
1798 }
1799
1800 return 0;
1801}
1802
1803
1804
1805
1806/*
1807 * Async readlink()
1808 */
1809static void nfs_readlink_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1810{
1811 READLINK3res *res;
1812 struct nfs_cb_data *data = private_data;
1813 struct nfs_context *nfs = data->nfs;
1814
1815 if (status == RPC_STATUS_ERROR) {
1816 data->cb(-EFAULT, nfs, command_data, data->private_data);
1817 free_nfs_cb_data(data);
1818 return;
1819 }
1820 if (status == RPC_STATUS_CANCEL) {
1821 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1822 free_nfs_cb_data(data);
1823 return;
1824 }
1825
1826 res = command_data;
1827 if (res->status != NFS3_OK) {
1828 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));
1829 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1830 free_nfs_cb_data(data);
1831 return;
1832 }
1833
1834
1835 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
1836 free_nfs_cb_data(data);
1837}
1838
1839static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1840{
1841 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &data->fh, data) != 0) {
1842 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
1843 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1844 free_nfs_cb_data(data);
1845 return -1;
1846 }
1847 return 0;
1848}
1849
1850int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1851{
1852 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
1853 printf("Out of memory: failed to start parsing the path components\n");
1854 return -1;
1855 }
1856
1857 return 0;
1858}
1859
1860
1861
1862
1863/*
1864 * Async chmod()
1865 */
1866static void nfs_chmod_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1867{
1868 struct nfs_cb_data *data = private_data;
1869 struct nfs_context *nfs = data->nfs;
1870 SETATTR3res *res;
1871
1872 if (status == RPC_STATUS_ERROR) {
1873 data->cb(-EFAULT, nfs, command_data, data->private_data);
1874 free_nfs_cb_data(data);
1875 return;
1876 }
1877 if (status == RPC_STATUS_CANCEL) {
1878 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1879 free_nfs_cb_data(data);
1880 return;
1881 }
1882
1883 res = command_data;
1884 if (res->status != NFS3_OK) {
1885 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1886 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1887 free_nfs_cb_data(data);
1888 return;
1889 }
1890
1891 data->cb(0, nfs, NULL, data->private_data);
1892 free_nfs_cb_data(data);
1893}
1894
1895static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1896{
1897 SETATTR3args args;
1898
1899 bzero(&args, sizeof(SETATTR3args));
1900 args.object.data.data_len = data->fh.data.data_len;
1901 args.object.data.data_val = data->fh.data.data_val;
1902 args.new_attributes.mode.set_it = 1;
1903 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
1904
1905 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
1906 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1907 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1908 free_nfs_cb_data(data);
1909 return -1;
1910 }
1911 return 0;
1912}
1913
1914
1915int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1916{
1917 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
1918 printf("Out of memory: failed to start parsing the path components\n");
1919 return -1;
1920 }
1921
1922 return 0;
1923}
1924
1925/*
1926 * Async fchmod()
1927 */
1928int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
1929{
1930 struct nfs_cb_data *data;
1931
1932 data = malloc(sizeof(struct nfs_cb_data));
1933 if (data == NULL) {
1934 rpc_set_error(nfs->rpc, "out of memory");
1935 printf("failed to allocate memory for nfs mount data\n");
1936 return -1;
1937 }
1938 bzero(data, sizeof(struct nfs_cb_data));
1939 data->nfs = nfs;
1940 data->cb = cb;
1941 data->private_data = private_data;
1942 data->continue_int = mode;
1943 data->fh.data.data_len = nfsfh->fh.data.data_len;
1944 data->fh.data.data_val = malloc(data->fh.data.data_len);
1945 if (data->fh.data.data_val == NULL) {
1946 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
1947 free_nfs_cb_data(data);
1948 return -1;
1949 }
1950 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
1951
1952 if (nfs_chmod_continue_internal(nfs, data) != 0) {
1953 free_nfs_cb_data(data);
1954 return -1;
1955 }
1956
1957 return 0;
1958}
1959
1960
1961
1962/*
1963 * Async chown()
1964 */
1965static void nfs_chown_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1966{
1967 struct nfs_cb_data *data = private_data;
1968 struct nfs_context *nfs = data->nfs;
1969 SETATTR3res *res;
1970
1971 if (status == RPC_STATUS_ERROR) {
1972 data->cb(-EFAULT, nfs, command_data, data->private_data);
1973 free_nfs_cb_data(data);
1974 return;
1975 }
1976 if (status == RPC_STATUS_CANCEL) {
1977 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1978 free_nfs_cb_data(data);
1979 return;
1980 }
1981
1982 res = command_data;
1983 if (res->status != NFS3_OK) {
1984 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1985 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1986 free_nfs_cb_data(data);
1987 return;
1988 }
1989
1990 data->cb(0, nfs, NULL, data->private_data);
1991 free_nfs_cb_data(data);
1992}
1993
1994struct nfs_chown_data {
1995 uid_t uid;
1996 gid_t gid;
1997};
1998
1999static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2000{
2001 SETATTR3args args;
2002 struct nfs_chown_data *chown_data = data->continue_data;
2003
2004 bzero(&args, sizeof(SETATTR3args));
2005 args.object.data.data_len = data->fh.data.data_len;
2006 args.object.data.data_val = data->fh.data.data_val;
2007 if (chown_data->uid != (uid_t)-1) {
2008 args.new_attributes.uid.set_it = 1;
2009 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2010 }
2011 if (chown_data->gid != (gid_t)-1) {
2012 args.new_attributes.gid.set_it = 1;
2013 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2014 }
2015
2016 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2017 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2018 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2019 free_nfs_cb_data(data);
2020 return -1;
2021 }
2022 return 0;
2023}
2024
2025
2026int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
2027{
2028 struct nfs_chown_data *chown_data;
2029
2030 chown_data = malloc(sizeof(struct nfs_chown_data));
2031 if (chown_data == NULL) {
2032 printf("Failed to allocate memory for chown data structure\n");
2033 return -1;
2034 }
2035
2036 chown_data->uid = uid;
2037 chown_data->gid = gid;
2038
2039 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
2040 printf("Out of memory: failed to start parsing the path components\n");
2041 return -1;
2042 }
2043
2044 return 0;
2045}
2046
2047
2048/*
2049 * Async fchown()
2050 */
2051int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
2052{
2053 struct nfs_cb_data *data;
2054 struct nfs_chown_data *chown_data;
2055
2056 chown_data = malloc(sizeof(struct nfs_chown_data));
2057 if (chown_data == NULL) {
2058 printf("Failed to allocate memory for chown data structure\n");
2059 return -1;
2060 }
2061
2062 chown_data->uid = uid;
2063 chown_data->gid = gid;
2064
2065
2066 data = malloc(sizeof(struct nfs_cb_data));
2067 if (data == NULL) {
2068 rpc_set_error(nfs->rpc, "out of memory");
2069 printf("failed to allocate memory for fchown data\n");
2070 return -1;
2071 }
2072 bzero(data, sizeof(struct nfs_cb_data));
2073 data->nfs = nfs;
2074 data->cb = cb;
2075 data->private_data = private_data;
2076 data->continue_data = chown_data;
2077 data->fh.data.data_len = nfsfh->fh.data.data_len;
2078 data->fh.data.data_val = malloc(data->fh.data.data_len);
2079 if (data->fh.data.data_val == NULL) {
2080 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2081 free_nfs_cb_data(data);
2082 return -1;
2083 }
2084 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2085
2086
2087 if (nfs_chown_continue_internal(nfs, data) != 0) {
2088 free_nfs_cb_data(data);
2089 return -1;
2090 }
2091
2092 return 0;
2093}
2094
2095
2096
2097
2098
2099/*
2100 * Async utimes()
2101 */
2102static void nfs_utimes_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2103{
2104 struct nfs_cb_data *data = private_data;
2105 struct nfs_context *nfs = data->nfs;
2106 SETATTR3res *res;
2107
2108 if (status == RPC_STATUS_ERROR) {
2109 data->cb(-EFAULT, nfs, command_data, data->private_data);
2110 free_nfs_cb_data(data);
2111 return;
2112 }
2113 if (status == RPC_STATUS_CANCEL) {
2114 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2115 free_nfs_cb_data(data);
2116 return;
2117 }
2118
2119 res = command_data;
2120 if (res->status != NFS3_OK) {
2121 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2122 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2123 free_nfs_cb_data(data);
2124 return;
2125 }
2126
2127 data->cb(0, nfs, NULL, data->private_data);
2128 free_nfs_cb_data(data);
2129}
2130
2131static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2132{
2133 SETATTR3args args;
2134 struct timeval *utimes_data = data->continue_data;
2135
2136 bzero(&args, sizeof(SETATTR3args));
2137 args.object.data.data_len = data->fh.data.data_len;
2138 args.object.data.data_val = data->fh.data.data_val;
2139 if (utimes_data != NULL) {
2140 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
2141 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
2142 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
2143 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
2144 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
2145 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
2146 } else {
2147 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
2148 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
2149 }
2150
2151 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
2152 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2153 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2154 free_nfs_cb_data(data);
2155 return -1;
2156 }
2157 return 0;
2158}
2159
2160
2161int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
2162{
2163 struct timeval *new_times = NULL;
2164
2165 if (times != NULL) {
2166 new_times = malloc(sizeof(struct timeval)*2);
2167 if (new_times == NULL) {
2168 printf("Failed to allocate memory for timeval structure\n");
2169 return -1;
2170 }
2171
2172 memcpy(new_times, times, sizeof(struct timeval)*2);
2173 }
2174
2175 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2176 printf("Out of memory: failed to start parsing the path components\n");
2177 return -1;
2178 }
2179
2180 return 0;
2181}
2182
2183/*
2184 * Async utime()
2185 */
2186int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
2187{
2188 struct timeval *new_times = NULL;
2189
2190 if (times != NULL) {
2191 new_times = malloc(sizeof(struct timeval)*2);
2192 if (new_times == NULL) {
2193 printf("Failed to allocate memory for timeval structure\n");
2194 return -1;
2195 }
2196
2197 new_times[0].tv_sec = times->actime;
2198 new_times[0].tv_usec = 0;
2199 new_times[1].tv_sec = times->modtime;
2200 new_times[1].tv_usec = 0;
2201 }
2202
2203 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
2204 printf("Out of memory: failed to start parsing the path components\n");
2205 return -1;
2206 }
2207
2208 return 0;
2209}
2210
2211
2212
2213
2214
2215/*
2216 * Async access()
2217 */
2218static void nfs_access_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2219{
2220 ACCESS3res *res;
2221 struct nfs_cb_data *data = private_data;
2222 struct nfs_context *nfs = data->nfs;
2223 unsigned int nfsmode = 0;
2224
2225 if (status == RPC_STATUS_ERROR) {
2226 data->cb(-EFAULT, nfs, command_data, data->private_data);
2227 free_nfs_cb_data(data);
2228 return;
2229 }
2230 if (status == RPC_STATUS_CANCEL) {
2231 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2232 free_nfs_cb_data(data);
2233 return;
2234 }
2235
2236 res = command_data;
2237 if (res->status != NFS3_OK) {
2238 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));
2239 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2240 free_nfs_cb_data(data);
2241 return;
2242 }
2243
2244 if (data->continue_int & R_OK) {
2245 nfsmode |= ACCESS3_READ;
2246 }
2247 if (data->continue_int & W_OK) {
2248 nfsmode |= ACCESS3_MODIFY;
2249 }
2250 if (data->continue_int & X_OK) {
2251 nfsmode |= ACCESS3_EXECUTE;
2252 }
2253
2254 if (res->ACCESS3res_u.resok.access != nfsmode) {
2255 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
2256 nfsmode&ACCESS3_READ?'r':'-',
2257 nfsmode&ACCESS3_MODIFY?'w':'-',
2258 nfsmode&ACCESS3_EXECUTE?'x':'-',
2259 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
2260 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
2261 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
2262 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
2263 free_nfs_cb_data(data);
2264 return;
2265 }
2266
2267 data->cb(0, nfs, NULL, data->private_data);
2268 free_nfs_cb_data(data);
2269}
2270
2271static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2272{
2273 int nfsmode = 0;
2274
2275 if (data->continue_int & R_OK) {
2276 nfsmode |= ACCESS3_READ;
2277 }
2278 if (data->continue_int & W_OK) {
2279 nfsmode |= ACCESS3_MODIFY;
2280 }
2281 if (data->continue_int & X_OK) {
2282 nfsmode |= ACCESS3_EXECUTE;
2283 }
2284
2285 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
2286 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
2287 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2288 free_nfs_cb_data(data);
2289 return -1;
2290 }
2291 return 0;
2292}
2293
2294int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2295{
2296 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
2297 printf("Out of memory: failed to start parsing the path components\n");
2298 return -2;
2299 }
2300
2301 return 0;
2302}
2303
2304
2305
2306/*
2307 * Async symlink()
2308 */
2309struct nfs_symlink_data {
2310 char *oldpath;
2311 char *newpathparent;
2312 char *newpathobject;
2313};
2314
2315static void free_nfs_symlink_data(void *mem)
2316{
2317 struct nfs_symlink_data *data = mem;
2318
2319 if (data->oldpath != NULL) {
2320 free(data->oldpath);
2321 }
2322 if (data->newpathparent != NULL) {
2323 free(data->newpathparent);
2324 }
2325 if (data->newpathobject != NULL) {
2326 free(data->newpathobject);
2327 }
2328 free(data);
2329}
2330
2331static void nfs_symlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2332{
2333 SYMLINK3res *res;
2334 struct nfs_cb_data *data = private_data;
2335 struct nfs_context *nfs = data->nfs;
2336 struct nfs_symlink_data *symlink_data = data->continue_data;
2337
2338 if (status == RPC_STATUS_ERROR) {
2339 data->cb(-EFAULT, nfs, command_data, data->private_data);
2340 free_nfs_cb_data(data);
2341 return;
2342 }
2343 if (status == RPC_STATUS_CANCEL) {
2344 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2345 free_nfs_cb_data(data);
2346 return;
2347 }
2348
2349 res = command_data;
2350 if (res->status != NFS3_OK) {
2351 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));
2352 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2353 free_nfs_cb_data(data);
2354 return;
2355 }
2356
2357 data->cb(0, nfs, NULL, data->private_data);
2358 free_nfs_cb_data(data);
2359}
2360
2361static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2362{
2363 struct nfs_symlink_data *symlink_data = data->continue_data;
2364
2365 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &data->fh, symlink_data->newpathobject, symlink_data->oldpath, data) != 0) {
2366 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
2367 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2368 free_nfs_cb_data(data);
2369 return -1;
2370 }
2371 return 0;
2372}
2373
2374int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2375{
2376 char *ptr;
2377 struct nfs_symlink_data *symlink_data;
2378
2379 symlink_data = malloc(sizeof(struct nfs_symlink_data));
2380 if (symlink_data == NULL) {
2381 printf("Out of memory, failed to allocate buffer for symlink data\n");
2382 return -1;
2383 }
2384 bzero(symlink_data, sizeof(struct nfs_symlink_data));
2385
2386 symlink_data->oldpath = strdup(oldpath);
2387 if (symlink_data->oldpath == NULL) {
2388 printf("Out of memory, failed to allocate buffer for oldpath\n");
2389 free_nfs_symlink_data(symlink_data);
2390 return -2;
2391 }
2392
2393 symlink_data->newpathparent = strdup(newpath);
2394 if (symlink_data->newpathparent == NULL) {
2395 printf("Out of memory, failed to allocate mode buffer for new path\n");
2396 free_nfs_symlink_data(symlink_data);
2397 return -3;
2398 }
2399
2400 ptr = rindex(symlink_data->newpathparent, '/');
2401 if (ptr == NULL) {
2402 printf("Invalid path %s\n", oldpath);
2403 free_nfs_symlink_data(symlink_data);
2404 return -4;
2405 }
2406 *ptr = 0;
2407 ptr++;
2408
2409 symlink_data->newpathobject = strdup(ptr);
2410 if (symlink_data->newpathobject == NULL) {
2411 printf("Out of memory, failed to allocate mode buffer for new path\n");
2412 free_nfs_symlink_data(symlink_data);
2413 return -5;
2414 }
2415
2416 if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
2417 printf("Out of memory: failed to start parsing the path components\n");
2418 return -6;
2419 }
2420
2421 return 0;
2422}
2423
2424
2425
2426/*
2427 * Async rename()
2428 */
2429struct nfs_rename_data {
2430 char *oldpath;
2431 char *oldobject;
2432 struct nfs_fh3 olddir;
2433 char *newpath;
2434 char *newobject;
2435 struct nfs_fh3 newdir;
2436};
2437
2438static void free_nfs_rename_data(void *mem)
2439{
2440 struct nfs_rename_data *data = mem;
2441
2442 if (data->oldpath != NULL) {
2443 free(data->oldpath);
2444 }
2445 if (data->olddir.data.data_val != NULL) {
2446 free(data->olddir.data.data_val);
2447 }
2448 if (data->newpath != NULL) {
2449 free(data->newpath);
2450 }
2451 if (data->newdir.data.data_val != NULL) {
2452 free(data->newdir.data.data_val);
2453 }
2454 free(data);
2455}
2456
2457static void nfs_rename_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2458{
2459 RENAME3res *res;
2460 struct nfs_cb_data *data = private_data;
2461 struct nfs_context *nfs = data->nfs;
2462 struct nfs_rename_data *rename_data = data->continue_data;
2463
2464 if (status == RPC_STATUS_ERROR) {
2465 data->cb(-EFAULT, nfs, command_data, data->private_data);
2466 free_nfs_cb_data(data);
2467 return;
2468 }
2469 if (status == RPC_STATUS_CANCEL) {
2470 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2471 free_nfs_cb_data(data);
2472 return;
2473 }
2474
2475 res = command_data;
2476 if (res->status != NFS3_OK) {
2477 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));
2478 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2479 free_nfs_cb_data(data);
2480 return;
2481 }
2482
2483 data->cb(0, nfs, NULL, data->private_data);
2484 free_nfs_cb_data(data);
2485}
2486
2487static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2488{
2489 struct nfs_rename_data *rename_data = data->continue_data;
2490
2491 /* steal the filehandle */
2492 rename_data->newdir.data.data_len = data->fh.data.data_len;
2493 rename_data->newdir.data.data_val = data->fh.data.data_val;
2494 data->fh.data.data_val = NULL;
2495
2496 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
2497 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
2498 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2499 free_nfs_cb_data(data);
2500 return -1;
2501 }
2502 return 0;
2503}
2504
2505
2506static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2507{
2508 struct nfs_rename_data *rename_data = data->continue_data;
2509
2510 /* steal the filehandle */
2511 rename_data->olddir.data.data_len = data->fh.data.data_len;
2512 rename_data->olddir.data.data_val = data->fh.data.data_val;
2513 data->fh.data.data_val = NULL;
2514
2515 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) {
2516 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
2517 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2518 free_nfs_cb_data(data);
2519 return -1;
2520 }
2521 data->continue_data = NULL;
2522 free_nfs_cb_data(data);
2523
2524 return 0;
2525}
2526
2527
2528int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2529{
2530 char *ptr;
2531 struct nfs_rename_data *rename_data;
2532
2533 rename_data = malloc(sizeof(struct nfs_rename_data));
2534 if (rename_data == NULL) {
2535 printf("Out of memory, failed to allocate buffer for rename data\n");
2536 return -1;
2537 }
2538 bzero(rename_data, sizeof(struct nfs_rename_data));
2539
2540 rename_data->oldpath = strdup(oldpath);
2541 if (rename_data->oldpath == NULL) {
2542 printf("Out of memory, failed to allocate buffer for oldpath\n");
2543 free_nfs_rename_data(rename_data);
2544 return -2;
2545 }
2546 ptr = rindex(rename_data->oldpath, '/');
2547 if (ptr == NULL) {
2548 printf("Invalid path %s\n", oldpath);
2549 free_nfs_rename_data(rename_data);
2550 return -3;
2551 }
2552 *ptr = 0;
2553 ptr++;
2554 rename_data->oldobject = ptr;
2555
2556
2557 rename_data->newpath = strdup(newpath);
2558 if (rename_data->newpath == NULL) {
2559 printf("Out of memory, failed to allocate buffer for newpath\n");
2560 free_nfs_rename_data(rename_data);
2561 return -4;
2562 }
2563 ptr = rindex(rename_data->newpath, '/');
2564 if (ptr == NULL) {
2565 printf("Invalid path %s\n", newpath);
2566 free_nfs_rename_data(rename_data);
2567 return -5;
2568 }
2569 *ptr = 0;
2570 ptr++;
2571 rename_data->newobject = ptr;
2572
2573
2574 if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
2575 printf("Out of memory: failed to start parsing the path components\n");
2576 return -6;
2577 }
2578
2579 return 0;
2580}
2581
2582
2583/*
2584 * Async link()
2585 */
2586struct nfs_link_data {
2587 char *oldpath;
2588 struct nfs_fh3 oldfh;
2589 char *newpath;
2590 char *newobject;
2591 struct nfs_fh3 newdir;
2592};
2593
2594static void free_nfs_link_data(void *mem)
2595{
2596 struct nfs_link_data *data = mem;
2597
2598 if (data->oldpath != NULL) {
2599 free(data->oldpath);
2600 }
2601 if (data->oldfh.data.data_val != NULL) {
2602 free(data->oldfh.data.data_val);
2603 }
2604 if (data->newpath != NULL) {
2605 free(data->newpath);
2606 }
2607 if (data->newdir.data.data_val != NULL) {
2608 free(data->newdir.data.data_val);
2609 }
2610 free(data);
2611}
2612
2613static void nfs_link_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2614{
2615 LINK3res *res;
2616 struct nfs_cb_data *data = private_data;
2617 struct nfs_context *nfs = data->nfs;
2618 struct nfs_link_data *link_data = data->continue_data;
2619
2620 if (status == RPC_STATUS_ERROR) {
2621 data->cb(-EFAULT, nfs, command_data, data->private_data);
2622 free_nfs_cb_data(data);
2623 return;
2624 }
2625 if (status == RPC_STATUS_CANCEL) {
2626 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2627 free_nfs_cb_data(data);
2628 return;
2629 }
2630
2631 res = command_data;
2632 if (res->status != NFS3_OK) {
2633 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));
2634 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2635 free_nfs_cb_data(data);
2636 return;
2637 }
2638
2639 data->cb(0, nfs, NULL, data->private_data);
2640 free_nfs_cb_data(data);
2641}
2642
2643static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2644{
2645 struct nfs_link_data *link_data = data->continue_data;
2646
2647 /* steal the filehandle */
2648 link_data->newdir.data.data_len = data->fh.data.data_len;
2649 link_data->newdir.data.data_val = data->fh.data.data_val;
2650 data->fh.data.data_val = NULL;
2651
2652 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
2653 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
2654 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2655 free_nfs_cb_data(data);
2656 return -1;
2657 }
2658 return 0;
2659}
2660
2661
2662static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2663{
2664 struct nfs_link_data *link_data = data->continue_data;
2665
2666 /* steal the filehandle */
2667 link_data->oldfh.data.data_len = data->fh.data.data_len;
2668 link_data->oldfh.data.data_val = data->fh.data.data_val;
2669 data->fh.data.data_val = NULL;
2670
2671 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) {
2672 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
2673 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2674 free_nfs_cb_data(data);
2675 return -1;
2676 }
2677 data->continue_data = NULL;
2678 free_nfs_cb_data(data);
2679
2680 return 0;
2681}
2682
2683
2684int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2685{
2686 char *ptr;
2687 struct nfs_link_data *link_data;
2688
2689 link_data = malloc(sizeof(struct nfs_link_data));
2690 if (link_data == NULL) {
2691 printf("Out of memory, failed to allocate buffer for link data\n");
2692 return -1;
2693 }
2694 bzero(link_data, sizeof(struct nfs_link_data));
2695
2696 link_data->oldpath = strdup(oldpath);
2697 if (link_data->oldpath == NULL) {
2698 printf("Out of memory, failed to allocate buffer for oldpath\n");
2699 free_nfs_link_data(link_data);
2700 return -2;
2701 }
2702
2703 link_data->newpath = strdup(newpath);
2704 if (link_data->newpath == NULL) {
2705 printf("Out of memory, failed to allocate buffer for newpath\n");
2706 free_nfs_link_data(link_data);
2707 return -4;
2708 }
2709 ptr = rindex(link_data->newpath, '/');
2710 if (ptr == NULL) {
2711 printf("Invalid path %s\n", newpath);
2712 free_nfs_link_data(link_data);
2713 return -5;
2714 }
2715 *ptr = 0;
2716 ptr++;
2717 link_data->newobject = ptr;
2718
2719
2720 if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
2721 printf("Out of memory: failed to start parsing the path components\n");
2722 return -6;
2723 }
2724
2725 return 0;
2726}
2727
2728
2729//qqq replace later with lseek()
2730off_t nfs_get_current_offset(struct nfsfh *nfsfh)
2731{
2732 return nfsfh->offset;
2733}
2734
17ef62fa
RS		 2735
2736
2737/*
2738 * Get the maximum supported READ3 size by the server
2739 */
2740size_t nfs_get_readmax(struct nfs_context *nfs)
2741{
2742 return nfs->readmax;
2743}
2744
2745/*
2746 * Get the maximum supported WRITE3 size by the server
2747 */
2748size_t nfs_get_writemax(struct nfs_context *nfs)
2749{
2750 return nfs->writemax;
2751}
libnfs Piment Noir Debian package repository