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Merge pull request #11 from Memphiz/master
[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
7f0242ca 21#define _GNU_SOURCE
84004dbf 22#include <stdio.h>
1896d37b 23#include <stdarg.h>
84004dbf
RS		 24#include <stdlib.h>
25#include <string.h>
26#include <strings.h>
27#include <errno.h>
28#include <sys/types.h>
29#include <sys/stat.h>
30#include <sys/statvfs.h>
31#include <utime.h>
32#include <unistd.h>
33#include <fcntl.h>
34#include "libnfs.h"
35#include "libnfs-raw.h"
36#include "libnfs-raw-mount.h"
37#include "libnfs-raw-nfs.h"
1896d37b
RS		 38#include "libnfs-private.h"
39
40struct nfsdir {
41 struct nfsdirent *entries;
42 struct nfsdirent *current;
43};
84004dbf
RS		 44
45struct nfsfh {
46 struct nfs_fh3 fh;
47 int is_sync;
48 off_t offset;
49};
50
1896d37b
RS		 51struct nfs_context {
52 struct rpc_context *rpc;
53 char *server;
54 char *export;
55 struct nfs_fh3 rootfh;
56 size_t readmax;
57 size_t writemax;
84004dbf
RS		 58};
59
60void nfs_free_nfsdir(struct nfsdir *nfsdir)
61{
62 while (nfsdir->entries) {
63 struct nfsdirent *dirent = nfsdir->entries->next;
64 if (nfsdir->entries->name != NULL) {
65 free(nfsdir->entries->name);
66 }
67 free(nfsdir->entries);
68 nfsdir->entries = dirent;
69 }
70 free(nfsdir);
71}
72
84004dbf
RS		 73struct nfs_cb_data;
74typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
75
76struct nfs_cb_data {
77 struct nfs_context *nfs;
78 struct nfsfh *nfsfh;
79 char *saved_path, *path;
80
81 nfs_cb cb;
82 void *private_data;
83
84 continue_func continue_cb;
85 void *continue_data;
86 void (*free_continue_data)(void *);
87 int continue_int;
88
89 struct nfs_fh3 fh;
921f877b
RS		 90
91 /* for multi-read/write calls. */
92 int error;
93 int cancel;
94 int num_calls;
95 off_t start_offset, max_offset;
96 char *buffer;
97};
98
99struct nfs_mcb_data {
100 struct nfs_cb_data *data;
101 off_t offset;
102 size_t count;
84004dbf
RS		 103};
104
105static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
106
107
108void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
109{
110 return rpc_set_auth(nfs->rpc, auth);
111}
112
113int nfs_get_fd(struct nfs_context *nfs)
114{
115 return rpc_get_fd(nfs->rpc);
116}
117
118int nfs_which_events(struct nfs_context *nfs)
119{
120 return rpc_which_events(nfs->rpc);
121}
122
123int nfs_service(struct nfs_context *nfs, int revents)
124{
125 return rpc_service(nfs->rpc, revents);
126}
127
128char *nfs_get_error(struct nfs_context *nfs)
129{
130 return rpc_get_error(nfs->rpc);
131};
132
133struct nfs_context *nfs_init_context(void)
134{
135 struct nfs_context *nfs;
136
137 nfs = malloc(sizeof(struct nfs_context));
138 if (nfs == NULL) {
84004dbf
RS		 139 return NULL;
140 }
141 nfs->rpc = rpc_init_context();
142 if (nfs->rpc == NULL) {
84004dbf
RS		 143 free(nfs);
144 return NULL;
145 }
146
147 return nfs;
148}
149
150void nfs_destroy_context(struct nfs_context *nfs)
151{
152 rpc_destroy_context(nfs->rpc);
153 nfs->rpc = NULL;
154
155 if (nfs->server) {
156 free(nfs->server);
157 nfs->server = NULL;
158 }
159
160 if (nfs->export) {
161 free(nfs->export);
162 nfs->export = NULL;
163 }
164
165 if (nfs->rootfh.data.data_val != NULL) {
166 free(nfs->rootfh.data.data_val);
167 nfs->rootfh.data.data_val = NULL;
168 }
169
170 free(nfs);
171}
172
173void free_nfs_cb_data(struct nfs_cb_data *data)
174{
175 if (data->saved_path != NULL) {
176 free(data->saved_path);
177 data->saved_path = NULL;
178 }
179
180 if (data->continue_data != NULL) {
181 data->free_continue_data(data->continue_data);
182 data->continue_data = NULL;
183 }
184
185 if (data->fh.data.data_val != NULL) {
186 free(data->fh.data.data_val);
187 data->fh.data.data_val = NULL;
188 }
189
921f877b
RS		 190 if (data->buffer != NULL) {
191 free(data->buffer);
192 data->buffer = NULL;
193 }
194
84004dbf
RS		 195 free(data);
196}
197
198
199
200
201
17ef62fa 202static void nfs_mount_10_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
84004dbf
RS		 203{
204 struct nfs_cb_data *data = private_data;
205 struct nfs_context *nfs = data->nfs;
206
207 if (status == RPC_STATUS_ERROR) {
208 data->cb(-EFAULT, nfs, command_data, data->private_data);
209 free_nfs_cb_data(data);
210 return;
211 }
212 if (status == RPC_STATUS_CANCEL) {
213 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
214 free_nfs_cb_data(data);
215 return;
216 }
217
218 data->cb(0, nfs, NULL, data->private_data);
219 free_nfs_cb_data(data);
220}
221
17ef62fa 222static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
84004dbf
RS		 223{
224 struct nfs_cb_data *data = private_data;
225 struct nfs_context *nfs = data->nfs;
17ef62fa 226 FSINFO3res *res = command_data;
84004dbf
RS		 227
228 if (status == RPC_STATUS_ERROR) {
229 data->cb(-EFAULT, nfs, command_data, data->private_data);
230 free_nfs_cb_data(data);
231 return;
232 }
233 if (status == RPC_STATUS_CANCEL) {
234 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
235 free_nfs_cb_data(data);
236 return;
237 }
238
17ef62fa
RS		 239 nfs->readmax = res->FSINFO3res_u.resok.rtmax;
240 nfs->writemax = res->FSINFO3res_u.resok.wtmax;
84004dbf 241
17ef62fa 242 if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
84004dbf
RS		 243 data->cb(-ENOMEM, nfs, command_data, data->private_data);
244 free_nfs_cb_data(data);
245 return;
246 }
247}
248
17ef62fa
RS		 249static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
250{
251 struct nfs_cb_data *data = private_data;
252 struct nfs_context *nfs = data->nfs;
253
254 if (status == RPC_STATUS_ERROR) {
255 data->cb(-EFAULT, nfs, command_data, data->private_data);
256 free_nfs_cb_data(data);
257 return;
258 }
259 if (status == RPC_STATUS_CANCEL) {
260 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
261 free_nfs_cb_data(data);
262 return;
263 }
264
265 if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
266 data->cb(-ENOMEM, nfs, command_data, data->private_data);
267 free_nfs_cb_data(data);
268 return;
269 }
270}
271
272
84004dbf
RS		 273static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
274{
275 struct nfs_cb_data *data = private_data;
276 struct nfs_context *nfs = data->nfs;
277
278 if (status == RPC_STATUS_ERROR) {
279 data->cb(-EFAULT, nfs, command_data, data->private_data);
280 free_nfs_cb_data(data);
281 return;
282 }
283 if (status == RPC_STATUS_CANCEL) {
284 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
285 free_nfs_cb_data(data);
286 return;
287 }
288
289 if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
290 data->cb(-ENOMEM, nfs, command_data, data->private_data);
291 free_nfs_cb_data(data);
292 return;
293 }
294}
295
296
297static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
298{
299 struct nfs_cb_data *data = private_data;
300 struct nfs_context *nfs = data->nfs;
301 mountres3 *res;
302
303 if (status == RPC_STATUS_ERROR) {
304 data->cb(-EFAULT, nfs, command_data, data->private_data);
305 free_nfs_cb_data(data);
306 return;
307 }
308 if (status == RPC_STATUS_CANCEL) {
309 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
310 free_nfs_cb_data(data);
311 return;
312 }
313
314 res = command_data;
315 if (res->fhs_status != MNT3_OK) {
316 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));
317 data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
318 free_nfs_cb_data(data);
319 return;
320 }
321
322 nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
323 nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
324 if (nfs->rootfh.data.data_val == NULL) {
325 rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
326 data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
327 free_nfs_cb_data(data);
328 return;
329 }
330 memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
331
332 rpc_disconnect(rpc, "normal disconnect");
333 if (rpc_connect_async(rpc, nfs->server, 2049, nfs_mount_7_cb, data) != 0) {
334 data->cb(-ENOMEM, nfs, command_data, data->private_data);
335 free_nfs_cb_data(data);
336 return;
337 }
338}
339
340
341static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
342{
343 struct nfs_cb_data *data = private_data;
344 struct nfs_context *nfs = data->nfs;
345
346 if (status == RPC_STATUS_ERROR) {
347 data->cb(-EFAULT, nfs, command_data, data->private_data);
348 free_nfs_cb_data(data);
349 return;
350 }
351 if (status == RPC_STATUS_CANCEL) {
352 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
353 free_nfs_cb_data(data);
354 return;
355 }
356
357 if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
358 data->cb(-ENOMEM, nfs, command_data, data->private_data);
359 free_nfs_cb_data(data);
360 return;
361 }
362}
363
364static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
365{
366 struct nfs_cb_data *data = private_data;
367 struct nfs_context *nfs = data->nfs;
368
369 if (status == RPC_STATUS_ERROR) {
370 data->cb(-EFAULT, nfs, command_data, data->private_data);
371 free_nfs_cb_data(data);
372 return;
373 }
374 if (status == RPC_STATUS_CANCEL) {
375 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
376 free_nfs_cb_data(data);
377 return;
378 }
379
380 if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
381 data->cb(-ENOMEM, nfs, command_data, data->private_data);
382 free_nfs_cb_data(data);
383 return;
384 }
385}
386
387static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
388{
389 struct nfs_cb_data *data = private_data;
390 struct nfs_context *nfs = data->nfs;
391 uint32_t mount_port;
392
393 if (status == RPC_STATUS_ERROR) {
394 data->cb(-EFAULT, nfs, command_data, data->private_data);
395 free_nfs_cb_data(data);
396 return;
397 }
398 if (status == RPC_STATUS_CANCEL) {
399 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
400 free_nfs_cb_data(data);
401 return;
402 }
403
404 mount_port = *(uint32_t *)command_data;
405 if (mount_port == 0) {
406 rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
407 data->cb(-ENOENT, nfs, command_data, data->private_data);
408 free_nfs_cb_data(data);
409 return;
410 }
411
412 rpc_disconnect(rpc, "normal disconnect");
413 if (rpc_connect_async(rpc, nfs->server, mount_port, nfs_mount_4_cb, data) != 0) {
414 data->cb(-ENOMEM, nfs, command_data, data->private_data);
415 free_nfs_cb_data(data);
416 return;
417 }
418}
419
420
421static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
422{
423 struct nfs_cb_data *data = private_data;
424 struct nfs_context *nfs = data->nfs;
425
426 if (status == RPC_STATUS_ERROR) {
427 data->cb(-EFAULT, nfs, command_data, data->private_data);
428 free_nfs_cb_data(data);
429 return;
430 }
431 if (status == RPC_STATUS_CANCEL) {
432 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
433 free_nfs_cb_data(data);
434 return;
435 }
436
437 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, nfs_mount_3_cb, private_data) != 0) {
438 data->cb(-ENOMEM, nfs, command_data, data->private_data);
439 free_nfs_cb_data(data);
440 return;
441 }
442}
443
444static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
445{
446 struct nfs_cb_data *data = private_data;
447 struct nfs_context *nfs = data->nfs;
448
449 if (status == RPC_STATUS_ERROR) {
450 data->cb(-EFAULT, nfs, command_data, data->private_data);
451 free_nfs_cb_data(data);
452 return;
453 }
454 if (status == RPC_STATUS_CANCEL) {
455 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
456 free_nfs_cb_data(data);
457 return;
458 }
459
460 if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
461 data->cb(-ENOMEM, nfs, command_data, data->private_data);
462 free_nfs_cb_data(data);
463 return;
464 }
465}
466
467/*
468 * Async call for mounting an nfs share and geting the root filehandle
469 */
470int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
471{
472 struct nfs_cb_data *data;
473
474 data = malloc(sizeof(struct nfs_cb_data));
475 if (data == NULL) {
cbbf9d3e 476 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
84004dbf
RS		 477 return -1;
478 }
479 bzero(data, sizeof(struct nfs_cb_data));
480 nfs->server = strdup(server);
481 nfs->export = strdup(export);
482 data->nfs = nfs;
483 data->cb = cb;
484 data->private_data = private_data;
485
486 if (rpc_connect_async(nfs->rpc, server, 111, nfs_mount_1_cb, data) != 0) {
cbbf9d3e 487 rpc_set_error(nfs->rpc, "Failed to start connection");
84004dbf 488 free_nfs_cb_data(data);
cbbf9d3e 489 return -1;
84004dbf
RS		 490 }
491
492 return 0;
493}
494
495
496
497/*
498 * Functions to first look up a path, component by component, and then finally call a specific function once
499 * the filehandle for the final component is found.
500 */
501static void nfs_lookup_path_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
502{
503 struct nfs_cb_data *data = private_data;
504 struct nfs_context *nfs = data->nfs;
505 LOOKUP3res *res;
506
507 if (status == RPC_STATUS_ERROR) {
508 data->cb(-EFAULT, nfs, command_data, data->private_data);
509 free_nfs_cb_data(data);
510 return;
511 }
512 if (status == RPC_STATUS_CANCEL) {
513 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
514 free_nfs_cb_data(data);
515 return;
516 }
517
518 res = command_data;
519 if (res->status != NFS3_OK) {
520 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));
521 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
522 free_nfs_cb_data(data);
523 return;
524 }
525
526 if (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
527 rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
528 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
529 free_nfs_cb_data(data);
530 return;
531 }
532}
533
534static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
535{
536 char *path, *str;
537
538 while (*data->path == '/') {
539 data->path++;
540 }
541
542 path = data->path;
543 str = index(path, '/');
544 if (str != NULL) {
545 *str = 0;
546 data->path = str+1;
547 } else {
548 while (*data->path != 0) {
549 data->path++;
550 }
551 }
552
553 if (*path == 0) {
554 data->fh.data.data_len = fh->data.data_len;
555 data->fh.data.data_val = malloc(data->fh.data.data_len);
556 if (data->fh.data.data_val == NULL) {
557 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
558 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
559 free_nfs_cb_data(data);
560 return -1;
561 }
562 memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
563 data->continue_cb(nfs, data);
564 return 0;
565 }
566
567 if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
568 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
569 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
570 free_nfs_cb_data(data);
571 return -1;
572 }
573 return 0;
574}
575
576static 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)
577{
578 struct nfs_cb_data *data;
579
580 if (path[0] != '/') {
581 rpc_set_error(nfs->rpc, "Pathname is not absulute %s", path);
582 return -1;
583 }
584
585 data = malloc(sizeof(struct nfs_cb_data));
586 if (data == NULL) {
587 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
cbbf9d3e 588 return -1;
84004dbf
RS		 589 }
590 bzero(data, sizeof(struct nfs_cb_data));
591 data->nfs = nfs;
592 data->cb = cb;
593 data->continue_cb = continue_cb;
594 data->continue_data = continue_data;
595 data->free_continue_data = free_continue_data;
596 data->continue_int = continue_int;
597 data->private_data = private_data;
598 data->saved_path = strdup(path);
599 if (data->saved_path == NULL) {
600 rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
84004dbf 601 free_nfs_cb_data(data);
cbbf9d3e 602 return -1;
84004dbf
RS		 603 }
604 data->path = data->saved_path;
605
606 if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
84004dbf
RS		 607 /* return 0 here since the callback will be invoked if there is a failure */
608 return 0;
609 }
610 return 0;
611}
612
613
614
615
616
617/*
618 * Async stat()
619 */
620static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
621{
622 GETATTR3res *res;
623 struct nfs_cb_data *data = private_data;
624 struct nfs_context *nfs = data->nfs;
625 struct stat st;
626
627 if (status == RPC_STATUS_ERROR) {
628 data->cb(-EFAULT, nfs, command_data, data->private_data);
629 free_nfs_cb_data(data);
630 return;
631 }
632 if (status == RPC_STATUS_CANCEL) {
633 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
634 free_nfs_cb_data(data);
635 return;
636 }
637
638 res = command_data;
639 if (res->status != NFS3_OK) {
640 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));
641 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
642 free_nfs_cb_data(data);
643 return;
644 }
645
646 st.st_dev = -1;
647 st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
648 st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
e8cab72a
RS		 649 if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
650 st.st_mode |= S_IFDIR ;
651 }
84004dbf
RS		 652 st.st_nlink = res->GETATTR3res_u.resok.obj_attributes.nlink;
653 st.st_uid = res->GETATTR3res_u.resok.obj_attributes.uid;
654 st.st_gid = res->GETATTR3res_u.resok.obj_attributes.gid;
655 st.st_rdev = 0;
656 st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
657 st.st_blksize = 4096;
658 st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
659 st.st_atime = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
660 st.st_mtime = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
661 st.st_ctime = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
662
663 data->cb(0, nfs, &st, data->private_data);
664 free_nfs_cb_data(data);
665}
666
667static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
668{
669 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
670 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
671 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
672 free_nfs_cb_data(data);
673 return -1;
674 }
675 return 0;
676}
677
678int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
679{
680 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
cbbf9d3e 681 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 682 return -1;
683 }
684
685 return 0;
686}
687
688
689
690
691
692/*
693 * Async open()
694 */
695static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
696{
697 ACCESS3res *res;
698 struct nfs_cb_data *data = private_data;
699 struct nfs_context *nfs = data->nfs;
700 struct nfsfh *nfsfh;
701 unsigned int nfsmode = 0;
702
703 if (status == RPC_STATUS_ERROR) {
704 data->cb(-EFAULT, nfs, command_data, data->private_data);
705 free_nfs_cb_data(data);
706 return;
707 }
708 if (status == RPC_STATUS_CANCEL) {
709 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
710 free_nfs_cb_data(data);
711 return;
712 }
713
714 res = command_data;
715 if (res->status != NFS3_OK) {
716 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));
717 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
718 free_nfs_cb_data(data);
719 return;
720 }
721
722 if (data->continue_int & O_WRONLY) {
723 nfsmode |= ACCESS3_MODIFY;
724 }
725 if (data->continue_int & O_RDWR) {
726 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
727 }
728 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
729 nfsmode |= ACCESS3_READ;
730 }
731
732
733 if (res->ACCESS3res_u.resok.access != nfsmode) {
734 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
735 nfsmode&ACCESS3_READ?'r':'-',
736 nfsmode&ACCESS3_MODIFY?'w':'-',
737 nfsmode&ACCESS3_EXECUTE?'x':'-',
738 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
739 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
740 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
741 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
742 free_nfs_cb_data(data);
743 return;
744 }
745
746 nfsfh = malloc(sizeof(struct nfsfh));
747 if (nfsfh == NULL) {
748 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
749 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
750 free_nfs_cb_data(data);
751 return;
752 }
753 bzero(nfsfh, sizeof(struct nfsfh));
754
755 if (data->continue_int & O_SYNC) {
756 nfsfh->is_sync = 1;
757 }
758
759 /* steal the filehandle */
760 nfsfh->fh.data.data_len = data->fh.data.data_len;
761 nfsfh->fh.data.data_val = data->fh.data.data_val;
762 data->fh.data.data_val = NULL;
763
764 data->cb(0, nfs, nfsfh, data->private_data);
765 free_nfs_cb_data(data);
766}
767
768static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
769{
770 int nfsmode = 0;
771
772 if (data->continue_int & O_WRONLY) {
773 nfsmode |= ACCESS3_MODIFY;
774 }
775 if (data->continue_int & O_RDWR) {
776 nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
777 }
778 if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
779 nfsmode |= ACCESS3_READ;
780 }
781
782 if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
783 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
784 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
785 free_nfs_cb_data(data);
786 return -1;
787 }
788 return 0;
789}
790
791int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
792{
793 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
cbbf9d3e
RS		 794 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
795 return -1;
84004dbf
RS		 796 }
797
798 return 0;
799}
800
801
802
803
804
805/*
806 * Async pread()
807 */
808static void nfs_pread_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
809{
810 struct nfs_cb_data *data = private_data;
811 struct nfs_context *nfs = data->nfs;
812 READ3res *res;
813
814 if (status == RPC_STATUS_ERROR) {
815 data->cb(-EFAULT, nfs, command_data, data->private_data);
816 free_nfs_cb_data(data);
817 return;
818 }
819 if (status == RPC_STATUS_CANCEL) {
820 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
821 free_nfs_cb_data(data);
822 return;
823 }
824
825 res = command_data;
826 if (res->status != NFS3_OK) {
827 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
828 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
829 free_nfs_cb_data(data);
830 return;
831 }
832
833 data->nfsfh->offset += res->READ3res_u.resok.count;
834 data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
835 free_nfs_cb_data(data);
836}
837
921f877b
RS		 838static void nfs_pread_mcb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
839{
840 struct nfs_mcb_data *mdata = private_data;
841 struct nfs_cb_data *data = mdata->data;
842 struct nfs_context *nfs = data->nfs;
843 READ3res *res;
844
845 data->num_calls--;
846
847 if (status == RPC_STATUS_ERROR) {
848 /* flag the failure but do not invoke callback until we have received all responses */
849 data->error = 1;
850 }
851 if (status == RPC_STATUS_CANCEL) {
852 /* flag the cancellation but do not invoke callback until we have received all responses */
853 data->cancel = 1;
854 }
855
856 /* reassemble the data into the buffer */
857 if (status == RPC_STATUS_SUCCESS) {
858 res = command_data;
859 if (res->status != NFS3_OK) {
860 rpc_set_error(nfs->rpc, "NFS: Read failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
861 data->error = 1;
e4a5ba42
RS		 862 } else {
863 if (res->READ3res_u.resok.count > 0) {
864 memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
865 if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
866 data->max_offset = mdata->offset + res->READ3res_u.resok.count;
867 }
921f877b
RS		 868 }
869 }
870 }
871
872 if (data->num_calls > 0) {
873 /* still waiting for more replies */
874 free(mdata);
875 return;
876 }
877
921f877b
RS		 878 if (data->error != 0) {
879 data->cb(-EFAULT, nfs, command_data, data->private_data);
880 free_nfs_cb_data(data);
881 free(mdata);
882 return;
883 }
884 if (data->cancel != 0) {
885 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
886 free_nfs_cb_data(data);
887 free(mdata);
888 return;
889 }
890
891 data->nfsfh->offset = data->max_offset;
7ed9d87a
RS		 892 data->cb(data->max_offset - data->start_offset, nfs, data->buffer, data->private_data);
893
921f877b
RS		 894 free_nfs_cb_data(data);
895 free(mdata);
896}
897
84004dbf
RS		 898int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, nfs_cb cb, void *private_data)
899{
900 struct nfs_cb_data *data;
901
902 data = malloc(sizeof(struct nfs_cb_data));
903 if (data == NULL) {
904 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 905 return -1;
906 }
907 bzero(data, sizeof(struct nfs_cb_data));
908 data->nfs = nfs;
909 data->cb = cb;
910 data->private_data = private_data;
911 data->nfsfh = nfsfh;
912
913 nfsfh->offset = offset;
921f877b
RS		 914
915 if (count <= nfs_get_readmax(nfs)) {
916 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
917 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
918 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
919 free_nfs_cb_data(data);
920 return -1;
921 }
922 return 0;
923 }
924
925 /* trying to read more than maximum server read size, we has to chop it up into smaller
926 * reads and collect into a reassembly buffer.
927 * we send all reads in parallell so that performance is still good.
928 */
7ed9d87a 929 data->max_offset = offset;
921f877b
RS		 930 data->start_offset = offset;
931
932 data->buffer = malloc(count);
933 if (data->buffer == NULL) {
934 rpc_set_error(nfs->rpc, "Out-Of-Memory: Failed to allocate reassembly buffer for %d bytes", (int)count);
84004dbf
RS		 935 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
936 free_nfs_cb_data(data);
937 return -1;
938 }
921f877b
RS		 939
940 while (count > 0) {
941 size_t readcount = count;
942 struct nfs_mcb_data *mdata;
943
944 if (readcount > nfs_get_readmax(nfs)) {
945 readcount = nfs_get_readmax(nfs);
946 }
947
948 mdata = malloc(sizeof(struct nfs_mcb_data));
949 if (mdata == NULL) {
950 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_mcb_data structure");
921f877b
RS		 951 return -1;
952 }
953 bzero(mdata, sizeof(struct nfs_mcb_data));
954 mdata->data = data;
955 mdata->offset = offset;
956 mdata->count = readcount;
921f877b
RS		 957 if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
958 rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
959 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
960 free(mdata);
961 return -1;
962 }
963
964 count -= readcount;
965 offset += readcount;
966 data->num_calls++;
967 }
968
969 return 0;
84004dbf
RS		 970}
971
972/*
973 * Async read()
974 */
975int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, nfs_cb cb, void *private_data)
976{
977 return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
978}
979
980
981
982/*
983 * Async pwrite()
984 */
985static void nfs_pwrite_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
986{
987 struct nfs_cb_data *data = private_data;
988 struct nfs_context *nfs = data->nfs;
989 WRITE3res *res;
990
991 if (status == RPC_STATUS_ERROR) {
992 data->cb(-EFAULT, nfs, command_data, data->private_data);
993 free_nfs_cb_data(data);
994 return;
995 }
996 if (status == RPC_STATUS_CANCEL) {
997 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
998 free_nfs_cb_data(data);
999 return;
1000 }
1001
1002 res = command_data;
1003 if (res->status != NFS3_OK) {
1004 rpc_set_error(nfs->rpc, "NFS: Write failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1005 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1006 free_nfs_cb_data(data);
1007 return;
1008 }
1009
1010 data->nfsfh->offset += res->WRITE3res_u.resok.count;
1011 data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
1012 free_nfs_cb_data(data);
1013}
1014
1015int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf, nfs_cb cb, void *private_data)
1016{
1017 struct nfs_cb_data *data;
1018
1019 data = malloc(sizeof(struct nfs_cb_data));
1020 if (data == NULL) {
1021 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1022 return -1;
1023 }
1024 bzero(data, sizeof(struct nfs_cb_data));
1025 data->nfs = nfs;
1026 data->cb = cb;
1027 data->private_data = private_data;
1028 data->nfsfh = nfsfh;
1029
1030 nfsfh->offset = offset;
1031 if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
1032 rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
1033 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1034 free_nfs_cb_data(data);
1035 return -1;
1036 }
1037 return 0;
1038}
1039
1040/*
1041 * Async write()
1042 */
1043int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf, nfs_cb cb, void *private_data)
1044{
1045 return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
1046}
1047
1048
1049
1050
1051/*
1052 * close
1053 */
1054
1055int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1056{
1057 if (nfsfh->fh.data.data_val != NULL){
1058 free(nfsfh->fh.data.data_val);
1059 nfsfh->fh.data.data_val = NULL;
1060 }
1061 free(nfsfh);
1062
1063 cb(0, nfs, NULL, private_data);
1064 return 0;
1065};
1066
1067
1068
1069
1070
1071/*
1072 * Async fstat()
1073 */
1074int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1075{
1076 struct nfs_cb_data *data;
1077
1078 data = malloc(sizeof(struct nfs_cb_data));
1079 if (data == NULL) {
1080 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 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 if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
1089 rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
1090 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1091 free_nfs_cb_data(data);
1092 return -1;
1093 }
1094 return 0;
1095}
1096
1097
1098
1099/*
1100 * Async fsync()
1101 */
1102static void nfs_fsync_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1103{
1104 struct nfs_cb_data *data = private_data;
1105 struct nfs_context *nfs = data->nfs;
1106 COMMIT3res *res;
1107
1108 if (status == RPC_STATUS_ERROR) {
1109 data->cb(-EFAULT, nfs, command_data, data->private_data);
1110 free_nfs_cb_data(data);
1111 return;
1112 }
1113 if (status == RPC_STATUS_CANCEL) {
1114 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1115 free_nfs_cb_data(data);
1116 return;
1117 }
1118
1119 res = command_data;
1120 if (res->status != NFS3_OK) {
1121 rpc_set_error(nfs->rpc, "NFS: Commit failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1122 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1123 free_nfs_cb_data(data);
1124 return;
1125 }
1126
1127 data->cb(0, nfs, NULL, data->private_data);
1128 free_nfs_cb_data(data);
1129}
1130
1131int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
1132{
1133 struct nfs_cb_data *data;
1134
1135 data = malloc(sizeof(struct nfs_cb_data));
1136 if (data == NULL) {
1137 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1138 return -1;
1139 }
1140 bzero(data, sizeof(struct nfs_cb_data));
1141 data->nfs = nfs;
1142 data->cb = cb;
1143 data->private_data = private_data;
1144
1145 if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
1146 rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
1147 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1148 free_nfs_cb_data(data);
1149 return -1;
1150 }
1151 return 0;
1152}
1153
1154
1155
1156
1157/*
1158 * Async ftruncate()
1159 */
1160static void nfs_ftruncate_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1161{
1162 struct nfs_cb_data *data = private_data;
1163 struct nfs_context *nfs = data->nfs;
1164 SETATTR3res *res;
1165
1166 if (status == RPC_STATUS_ERROR) {
1167 data->cb(-EFAULT, nfs, command_data, data->private_data);
1168 free_nfs_cb_data(data);
1169 return;
1170 }
1171 if (status == RPC_STATUS_CANCEL) {
1172 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1173 free_nfs_cb_data(data);
1174 return;
1175 }
1176
1177 res = command_data;
1178 if (res->status != NFS3_OK) {
1179 rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1180 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1181 free_nfs_cb_data(data);
1182 return;
1183 }
1184
1185 data->cb(0, nfs, NULL, data->private_data);
1186 free_nfs_cb_data(data);
1187}
1188
1189int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length, nfs_cb cb, void *private_data)
1190{
1191 struct nfs_cb_data *data;
1192 SETATTR3args args;
1193
1194 data = malloc(sizeof(struct nfs_cb_data));
1195 if (data == NULL) {
1196 rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
84004dbf
RS		 1197 return -1;
1198 }
1199 bzero(data, sizeof(struct nfs_cb_data));
1200 data->nfs = nfs;
1201 data->cb = cb;
1202 data->private_data = private_data;
1203
1204 bzero(&args, sizeof(SETATTR3args));
1205 args.object.data.data_len = nfsfh->fh.data.data_len;
1206 args.object.data.data_val = nfsfh->fh.data.data_val;
1207 args.new_attributes.size.set_it = 1;
1208 args.new_attributes.size.set_size3_u.size = length;
1209
1210 if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
1211 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1212 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1213 free_nfs_cb_data(data);
1214 return -1;
1215 }
1216 return 0;
1217}
1218
1219
1220/*
1221 * Async truncate()
1222 */
1223static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1224{
1225 off_t offset = data->continue_int;
1226 struct nfsfh nfsfh;
1227
1228 nfsfh.fh.data.data_val = data->fh.data.data_val;
1229 nfsfh.fh.data.data_len = data->fh.data.data_len;
1230
1231 if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
1232 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
1233 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1234 free_nfs_cb_data(data);
1235 return -1;
1236 }
1237 free_nfs_cb_data(data);
1238 return 0;
1239}
1240
1241int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length, nfs_cb cb, void *private_data)
1242{
1243 off_t offset;
1244
1245 offset = length;
1246
1247 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
cbbf9d3e
RS		 1248 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1249 return -1;
84004dbf
RS		 1250 }
1251
1252 return 0;
1253}
1254
1255
1256
1257
1258/*
1259 * Async mkdir()
1260 */
1261static void nfs_mkdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1262{
1263 MKDIR3res *res;
1264 struct nfs_cb_data *data = private_data;
1265 struct nfs_context *nfs = data->nfs;
1266 char *str = data->continue_data;
1267
1268 str = &str[strlen(str) + 1];
1269
1270 if (status == RPC_STATUS_ERROR) {
1271 data->cb(-EFAULT, nfs, command_data, data->private_data);
1272 free_nfs_cb_data(data);
1273 return;
1274 }
1275 if (status == RPC_STATUS_CANCEL) {
1276 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1277 free_nfs_cb_data(data);
1278 return;
1279 }
1280
1281 res = command_data;
1282 if (res->status != NFS3_OK) {
1283 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));
1284 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1285 free_nfs_cb_data(data);
1286 return;
1287 }
1288
1289 data->cb(0, nfs, NULL, data->private_data);
1290 free_nfs_cb_data(data);
1291}
1292
1293static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1294{
1295 char *str = data->continue_data;
1296
1297 str = &str[strlen(str) + 1];
1298
1299 if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &data->fh, str, data) != 0) {
1300 rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
1301 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1302 free_nfs_cb_data(data);
1303 return -1;
1304 }
1305 return 0;
1306}
1307
1308int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1309{
1310 char *new_path;
1311 char *ptr;
1312
1313 new_path = strdup(path);
1314 if (new_path == NULL) {
cbbf9d3e 1315 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 1316 return -1;
1317 }
1318
1319 ptr = rindex(new_path, '/');
1320 if (ptr == NULL) {
cbbf9d3e
RS		 1321 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1322 return -1;
84004dbf
RS		 1323 }
1324 *ptr = 0;
1325
1326 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1327 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
cbbf9d3e
RS		 1328 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path component");
1329 return -1;
84004dbf
RS		 1330 }
1331
1332 return 0;
1333}
1334
1335
1336
1337
1338
1339/*
1340 * Async rmdir()
1341 */
1342static void nfs_rmdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1343{
1344 RMDIR3res *res;
1345 struct nfs_cb_data *data = private_data;
1346 struct nfs_context *nfs = data->nfs;
1347 char *str = data->continue_data;
1348
1349 str = &str[strlen(str) + 1];
1350
1351 if (status == RPC_STATUS_ERROR) {
1352 data->cb(-EFAULT, nfs, command_data, data->private_data);
1353 free_nfs_cb_data(data);
1354 return;
1355 }
1356 if (status == RPC_STATUS_CANCEL) {
1357 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1358 free_nfs_cb_data(data);
1359 return;
1360 }
1361
1362 res = command_data;
1363 if (res->status != NFS3_OK) {
1364 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));
1365 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1366 free_nfs_cb_data(data);
1367 return;
1368 }
1369
1370 data->cb(0, nfs, NULL, data->private_data);
1371 free_nfs_cb_data(data);
1372}
1373
1374static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1375{
1376 char *str = data->continue_data;
1377
1378 str = &str[strlen(str) + 1];
1379
1380 if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
1381 rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
1382 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1383 free_nfs_cb_data(data);
1384 return -1;
1385 }
1386 return 0;
1387}
1388
1389int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1390{
1391 char *new_path;
1392 char *ptr;
1393
1394 new_path = strdup(path);
1395 if (new_path == NULL) {
cbbf9d3e 1396 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 1397 return -1;
1398 }
1399
1400 ptr = rindex(new_path, '/');
1401 if (ptr == NULL) {
cbbf9d3e
RS		 1402 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1403 return -1;
84004dbf
RS		 1404 }
1405 *ptr = 0;
1406
1407 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1408 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
cbbf9d3e
RS		 1409 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1410 return -1;
84004dbf
RS		 1411 }
1412
1413 return 0;
1414}
1415
1416
1417
1418
1419/*
1420 * Async creat()
1421 */
1422static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1423{
1424 LOOKUP3res *res;
1425 struct nfs_cb_data *data = private_data;
1426 struct nfs_context *nfs = data->nfs;
1427 struct nfsfh *nfsfh;
1428 char *str = data->continue_data;
1429
1430 if (status == RPC_STATUS_ERROR) {
1431 data->cb(-EFAULT, nfs, command_data, data->private_data);
1432 free_nfs_cb_data(data);
1433 return;
1434 }
1435 if (status == RPC_STATUS_CANCEL) {
1436 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1437 free_nfs_cb_data(data);
1438 return;
1439 }
1440
1441 str = &str[strlen(str) + 1];
1442 res = command_data;
1443 if (res->status != NFS3_OK) {
1444 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));
1445 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1446
1447 return;
1448 }
1449
1450 nfsfh = malloc(sizeof(struct nfsfh));
1451 if (nfsfh == NULL) {
1452 rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
1453 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1454 free_nfs_cb_data(data);
1455 return;
1456 }
1457 bzero(nfsfh, sizeof(struct nfsfh));
1458
1459 /* steal the filehandle */
1460 nfsfh->fh.data.data_len = data->fh.data.data_len;
1461 nfsfh->fh.data.data_val = data->fh.data.data_val;
1462 data->fh.data.data_val = NULL;
1463
1464 data->cb(0, nfs, nfsfh, data->private_data);
1465 free_nfs_cb_data(data);
1466}
1467
1468
1469
1470static void nfs_creat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1471{
1472 CREATE3res *res;
1473 struct nfs_cb_data *data = private_data;
1474 struct nfs_context *nfs = data->nfs;
1475 char *str = data->continue_data;
1476
1477 if (status == RPC_STATUS_ERROR) {
1478 data->cb(-EFAULT, nfs, command_data, data->private_data);
1479 free_nfs_cb_data(data);
1480 return;
1481 }
1482 if (status == RPC_STATUS_CANCEL) {
1483 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1484 free_nfs_cb_data(data);
1485 return;
1486 }
1487
1488 str = &str[strlen(str) + 1];
1489 res = command_data;
1490 if (res->status != NFS3_OK) {
1491 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));
1492 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1493
1494 return;
1495 }
1496
1497 if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
1498 rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
1499 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1500 free_nfs_cb_data(data);
1501 return;
1502 }
1503 return;
1504}
1505
1506static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1507{
1508 char *str = data->continue_data;
1509
1510 str = &str[strlen(str) + 1];
1511
1512 if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &data->fh, str, data->continue_int, data) != 0) {
1513 rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
1514 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1515 free_nfs_cb_data(data);
1516 return -1;
1517 }
1518 return 0;
1519}
1520
1521int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
1522{
1523 char *new_path;
1524 char *ptr;
1525
1526 new_path = strdup(path);
1527 if (new_path == NULL) {
cbbf9d3e 1528 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 1529 return -1;
1530 }
1531
1532 ptr = rindex(new_path, '/');
1533 if (ptr == NULL) {
cbbf9d3e
RS		 1534 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1535 return -1;
84004dbf
RS		 1536 }
1537 *ptr = 0;
1538
1539 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1540 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
cbbf9d3e
RS		 1541 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1542 return -1;
84004dbf
RS		 1543 }
1544
1545 return 0;
1546}
1547
1548
1549
1550
1551/*
1552 * Async unlink()
1553 */
1554static void nfs_unlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1555{
1556 REMOVE3res *res;
1557 struct nfs_cb_data *data = private_data;
1558 struct nfs_context *nfs = data->nfs;
1559 char *str = data->continue_data;
1560
1561 str = &str[strlen(str) + 1];
1562
1563 if (status == RPC_STATUS_ERROR) {
1564 data->cb(-EFAULT, nfs, command_data, data->private_data);
1565 free_nfs_cb_data(data);
1566 return;
1567 }
1568 if (status == RPC_STATUS_CANCEL) {
1569 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1570 free_nfs_cb_data(data);
1571 return;
1572 }
1573
1574 res = command_data;
1575 if (res->status != NFS3_OK) {
1576 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));
1577 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1578 free_nfs_cb_data(data);
1579 return;
1580 }
1581
1582 data->cb(0, nfs, NULL, data->private_data);
1583 free_nfs_cb_data(data);
1584}
1585
1586static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1587{
1588 char *str = data->continue_data;
1589
1590 str = &str[strlen(str) + 1];
1591
1592 if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
1593 rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE 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
1601int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1602{
1603 char *new_path;
1604 char *ptr;
1605
1606 new_path = strdup(path);
1607 if (new_path == NULL) {
cbbf9d3e 1608 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
84004dbf
RS		 1609 return -1;
1610 }
1611
1612 ptr = rindex(new_path, '/');
1613 if (ptr == NULL) {
cbbf9d3e
RS		 1614 rpc_set_error(nfs->rpc, "Invalid path %s", path);
1615 return -1;
84004dbf
RS		 1616 }
1617 *ptr = 0;
1618
1619 /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
1620 if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
cbbf9d3e
RS		 1621 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1622 return -1;
84004dbf
RS		 1623 }
1624
1625 return 0;
1626}
1627
1628
1629
1630
1631
1632/*
1633 * Async opendir()
1634 */
1635static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1636{
1637 READDIR3res *res;
1638 struct nfs_cb_data *data = private_data;
1639 struct nfs_context *nfs = data->nfs;
1640 struct nfsdir *nfsdir = data->continue_data;;
1641 struct entry3 *entry;
1642 uint64_t cookie;
1643
1644 if (status == RPC_STATUS_ERROR) {
1645 data->cb(-EFAULT, nfs, command_data, data->private_data);
1646 nfs_free_nfsdir(nfsdir);
1647 data->continue_data = NULL;
1648 free_nfs_cb_data(data);
1649 return;
1650 }
1651 if (status == RPC_STATUS_CANCEL) {
1652 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1653 nfs_free_nfsdir(nfsdir);
1654 data->continue_data = NULL;
1655 free_nfs_cb_data(data);
1656 return;
1657 }
1658
1659 res = command_data;
1660 if (res->status != NFS3_OK) {
1661 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));
1662 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1663 nfs_free_nfsdir(nfsdir);
1664 data->continue_data = NULL;
1665 free_nfs_cb_data(data);
1666 return;
1667 }
1668
1669 entry =res->READDIR3res_u.resok.reply.entries;
1670 while (entry != NULL) {
1671 struct nfsdirent *nfsdirent;
1672
1673 nfsdirent = malloc(sizeof(struct nfsdirent));
1674 if (nfsdirent == NULL) {
1675 data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
1676 nfs_free_nfsdir(nfsdir);
1677 data->continue_data = NULL;
1678 free_nfs_cb_data(data);
1679 return;
1680 }
1681 bzero(nfsdirent, sizeof(struct nfsdirent));
1682 nfsdirent->name = strdup(entry->name);
1683 if (nfsdirent->name == NULL) {
1684 data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
1685 nfs_free_nfsdir(nfsdir);
1686 data->continue_data = NULL;
1687 free_nfs_cb_data(data);
1688 return;
1689 }
1690 nfsdirent->inode = entry->fileid;
1691 nfsdirent->next = nfsdir->entries;
1692 nfsdir->entries = nfsdirent;
1693
1694 cookie = entry->cookie;
1695 entry = entry->nextentry;
1696 }
1697
1698 if (res->READDIR3res_u.resok.reply.eof == 0) {
1699 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 20000, data) != 0) {
1700 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
1701 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1702 nfs_free_nfsdir(nfsdir);
1703 data->continue_data = NULL;
1704 free_nfs_cb_data(data);
1705 return;
1706 }
1707 return;
1708 }
1709
1710 /* steal the dirhandle */
1711 data->continue_data = NULL;
1712 nfsdir->current = nfsdir->entries;
1713
1714 data->cb(0, nfs, nfsdir, data->private_data);
1715 free_nfs_cb_data(data);
1716}
1717
1718static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1719{
1720 cookieverf3 cv;
1721
1722 bzero(cv, sizeof(cookieverf3));
1723 if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 20000, data) != 0) {
1724 rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
1725 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1726 free_nfs_cb_data(data);
1727 return -1;
1728 }
1729 return 0;
1730}
1731
1732int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1733{
1734 struct nfsdir *nfsdir;
1735
1736 nfsdir = malloc(sizeof(struct nfsdir));
1737 if (nfsdir == NULL) {
cbbf9d3e 1738 rpc_set_error(nfs->rpc, "failed to allocate buffer for nfsdir");
84004dbf
RS		 1739 return -1;
1740 }
1741 bzero(nfsdir, sizeof(struct nfsdir));
1742
1743 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
cbbf9d3e
RS		 1744 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
1745 return -1;
84004dbf
RS		 1746 }
1747
1748 return 0;
1749}
1750
1751
1752struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1753{
1754 struct nfsdirent *nfsdirent = nfsdir->current;
1755
1756 if (nfsdir->current != NULL) {
1757 nfsdir->current = nfsdir->current->next;
1758 }
1759 return nfsdirent;
1760}
1761
1762
1763void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
1764{
1765 nfs_free_nfsdir(nfsdir);
1766}
1767
1768
1769
1770
1771
1772
1773
1774/*
1775 * Async lseek()
1776 */
1777struct lseek_cb_data {
1778 struct nfs_context *nfs;
1779 struct nfsfh *nfsfh;
1780 off_t offset;
1781 nfs_cb cb;
1782 void *private_data;
1783};
1784
1785static void nfs_lseek_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1786{
1787 GETATTR3res *res;
1788 struct lseek_cb_data *data = private_data;
1789 struct nfs_context *nfs = data->nfs;
1790
1791 if (status == RPC_STATUS_ERROR) {
1792 data->cb(-EFAULT, nfs, command_data, data->private_data);
1793 free(data);
1794 return;
1795 }
1796 if (status == RPC_STATUS_CANCEL) {
1797 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1798 free(data);
1799 return;
1800 }
1801
1802 res = command_data;
1803 if (res->status != NFS3_OK) {
1804 rpc_set_error(nfs->rpc, "NFS: GETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
1805 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1806 free(data);
1807 return;
1808 }
1809
1810 data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
1811 data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
1812 free(data);
1813}
1814
1815int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, nfs_cb cb, void *private_data)
1816{
1817 struct lseek_cb_data *data;
1818
1819 if (whence == SEEK_SET) {
1820 nfsfh->offset = offset;
1821 cb(0, nfs, &nfsfh->offset, private_data);
1822 return 0;
1823 }
1824 if (whence == SEEK_CUR) {
1825 nfsfh->offset += offset;
1826 cb(0, nfs, &nfsfh->offset, private_data);
1827 return 0;
1828 }
1829
1830 data = malloc(sizeof(struct lseek_cb_data));
1831 if (data == NULL) {
1832 rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
1833 return -1;
1834 }
1835
1836 data->nfs = nfs;
1837 data->nfsfh = nfsfh;
1838 data->offset = offset;
1839 data->cb = cb;
1840 data->private_data = private_data;
1841
1842 if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
1843 rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
1844 free(data);
cbbf9d3e 1845 return -1;
84004dbf
RS		 1846 }
1847 return 0;
1848}
1849
1850
1851
1852
1853/*
1854 * Async statvfs()
1855 */
1856static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1857{
1858 FSSTAT3res *res;
1859 struct nfs_cb_data *data = private_data;
1860 struct nfs_context *nfs = data->nfs;
1861 struct statvfs svfs;
1862
1863 if (status == RPC_STATUS_ERROR) {
1864 data->cb(-EFAULT, nfs, command_data, data->private_data);
1865 free_nfs_cb_data(data);
1866 return;
1867 }
1868 if (status == RPC_STATUS_CANCEL) {
1869 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1870 free_nfs_cb_data(data);
1871 return;
1872 }
1873
1874 res = command_data;
1875 if (res->status != NFS3_OK) {
1876 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));
1877 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1878 free_nfs_cb_data(data);
1879 return;
1880 }
1881
1882 svfs.f_bsize = 4096;
1883 svfs.f_frsize = 4096;
1884 svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
1885 svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
1886 svfs.f_bavail = res->FSSTAT3res_u.resok.abytes/4096;
1887 svfs.f_files = res->FSSTAT3res_u.resok.tfiles;
1888 svfs.f_ffree = res->FSSTAT3res_u.resok.ffiles;
1889 svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
1890 svfs.f_fsid = 0;
1891 svfs.f_flag = 0;
1892 svfs.f_namemax = 256;
1893
1894 data->cb(0, nfs, &svfs, data->private_data);
1895 free_nfs_cb_data(data);
1896}
1897
1898static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1899{
1900 if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
1901 rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT 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_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1910{
1911 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
cbbf9d3e 1912 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 1913 return -1;
1914 }
1915
1916 return 0;
1917}
1918
1919
1920
1921
1922/*
1923 * Async readlink()
1924 */
1925static void nfs_readlink_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1926{
1927 READLINK3res *res;
1928 struct nfs_cb_data *data = private_data;
1929 struct nfs_context *nfs = data->nfs;
1930
1931 if (status == RPC_STATUS_ERROR) {
1932 data->cb(-EFAULT, nfs, command_data, data->private_data);
1933 free_nfs_cb_data(data);
1934 return;
1935 }
1936 if (status == RPC_STATUS_CANCEL) {
1937 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1938 free_nfs_cb_data(data);
1939 return;
1940 }
1941
1942 res = command_data;
1943 if (res->status != NFS3_OK) {
1944 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));
1945 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
1946 free_nfs_cb_data(data);
1947 return;
1948 }
1949
1950
1951 data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
1952 free_nfs_cb_data(data);
1953}
1954
1955static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
1956{
1957 if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &data->fh, data) != 0) {
1958 rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
1959 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
1960 free_nfs_cb_data(data);
1961 return -1;
1962 }
1963 return 0;
1964}
1965
1966int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
1967{
1968 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
cbbf9d3e 1969 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 1970 return -1;
1971 }
1972
1973 return 0;
1974}
1975
1976
1977
1978
1979/*
1980 * Async chmod()
1981 */
1982static void nfs_chmod_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
1983{
1984 struct nfs_cb_data *data = private_data;
1985 struct nfs_context *nfs = data->nfs;
1986 SETATTR3res *res;
1987
1988 if (status == RPC_STATUS_ERROR) {
1989 data->cb(-EFAULT, nfs, command_data, data->private_data);
1990 free_nfs_cb_data(data);
1991 return;
1992 }
1993 if (status == RPC_STATUS_CANCEL) {
1994 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
1995 free_nfs_cb_data(data);
1996 return;
1997 }
1998
1999 res = command_data;
2000 if (res->status != NFS3_OK) {
2001 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2002 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2003 free_nfs_cb_data(data);
2004 return;
2005 }
2006
2007 data->cb(0, nfs, NULL, data->private_data);
2008 free_nfs_cb_data(data);
2009}
2010
2011static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2012{
2013 SETATTR3args args;
2014
2015 bzero(&args, sizeof(SETATTR3args));
2016 args.object.data.data_len = data->fh.data.data_len;
2017 args.object.data.data_val = data->fh.data.data_val;
2018 args.new_attributes.mode.set_it = 1;
2019 args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
2020
2021 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
2022 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2023 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2024 free_nfs_cb_data(data);
2025 return -1;
2026 }
2027 return 0;
2028}
2029
2030
2031int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2032{
2033 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
cbbf9d3e 2034 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 2035 return -1;
2036 }
2037
2038 return 0;
2039}
2040
2041/*
2042 * Async fchmod()
2043 */
2044int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
2045{
2046 struct nfs_cb_data *data;
2047
2048 data = malloc(sizeof(struct nfs_cb_data));
2049 if (data == NULL) {
cbbf9d3e 2050 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for nfs mount data");
84004dbf
RS		 2051 return -1;
2052 }
2053 bzero(data, sizeof(struct nfs_cb_data));
2054 data->nfs = nfs;
2055 data->cb = cb;
2056 data->private_data = private_data;
2057 data->continue_int = mode;
2058 data->fh.data.data_len = nfsfh->fh.data.data_len;
2059 data->fh.data.data_val = malloc(data->fh.data.data_len);
2060 if (data->fh.data.data_val == NULL) {
2061 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2062 free_nfs_cb_data(data);
2063 return -1;
2064 }
2065 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2066
2067 if (nfs_chmod_continue_internal(nfs, data) != 0) {
2068 free_nfs_cb_data(data);
2069 return -1;
2070 }
2071
2072 return 0;
2073}
2074
2075
2076
2077/*
2078 * Async chown()
2079 */
2080static void nfs_chown_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2081{
2082 struct nfs_cb_data *data = private_data;
2083 struct nfs_context *nfs = data->nfs;
2084 SETATTR3res *res;
2085
2086 if (status == RPC_STATUS_ERROR) {
2087 data->cb(-EFAULT, nfs, command_data, data->private_data);
2088 free_nfs_cb_data(data);
2089 return;
2090 }
2091 if (status == RPC_STATUS_CANCEL) {
2092 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2093 free_nfs_cb_data(data);
2094 return;
2095 }
2096
2097 res = command_data;
2098 if (res->status != NFS3_OK) {
2099 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2100 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2101 free_nfs_cb_data(data);
2102 return;
2103 }
2104
2105 data->cb(0, nfs, NULL, data->private_data);
2106 free_nfs_cb_data(data);
2107}
2108
2109struct nfs_chown_data {
2110 uid_t uid;
2111 gid_t gid;
2112};
2113
2114static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2115{
2116 SETATTR3args args;
2117 struct nfs_chown_data *chown_data = data->continue_data;
2118
2119 bzero(&args, sizeof(SETATTR3args));
2120 args.object.data.data_len = data->fh.data.data_len;
2121 args.object.data.data_val = data->fh.data.data_val;
2122 if (chown_data->uid != (uid_t)-1) {
2123 args.new_attributes.uid.set_it = 1;
2124 args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
2125 }
2126 if (chown_data->gid != (gid_t)-1) {
2127 args.new_attributes.gid.set_it = 1;
2128 args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
2129 }
2130
2131 if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
2132 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2133 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2134 free_nfs_cb_data(data);
2135 return -1;
2136 }
2137 return 0;
2138}
2139
2140
2141int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
2142{
2143 struct nfs_chown_data *chown_data;
2144
2145 chown_data = malloc(sizeof(struct nfs_chown_data));
2146 if (chown_data == NULL) {
cbbf9d3e 2147 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
84004dbf
RS		 2148 return -1;
2149 }
2150
2151 chown_data->uid = uid;
2152 chown_data->gid = gid;
2153
2154 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
cbbf9d3e 2155 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 2156 return -1;
2157 }
2158
2159 return 0;
2160}
2161
2162
2163/*
2164 * Async fchown()
2165 */
2166int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
2167{
2168 struct nfs_cb_data *data;
2169 struct nfs_chown_data *chown_data;
2170
2171 chown_data = malloc(sizeof(struct nfs_chown_data));
2172 if (chown_data == NULL) {
cbbf9d3e 2173 rpc_set_error(nfs->rpc, "Failed to allocate memory for chown data structure");
84004dbf
RS		 2174 return -1;
2175 }
2176
2177 chown_data->uid = uid;
2178 chown_data->gid = gid;
2179
2180
2181 data = malloc(sizeof(struct nfs_cb_data));
2182 if (data == NULL) {
cbbf9d3e 2183 rpc_set_error(nfs->rpc, "out of memory. failed to allocate memory for fchown data");
84004dbf
RS		 2184 return -1;
2185 }
2186 bzero(data, sizeof(struct nfs_cb_data));
2187 data->nfs = nfs;
2188 data->cb = cb;
2189 data->private_data = private_data;
2190 data->continue_data = chown_data;
2191 data->fh.data.data_len = nfsfh->fh.data.data_len;
2192 data->fh.data.data_val = malloc(data->fh.data.data_len);
2193 if (data->fh.data.data_val == NULL) {
2194 rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
2195 free_nfs_cb_data(data);
2196 return -1;
2197 }
2198 memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
2199
2200
2201 if (nfs_chown_continue_internal(nfs, data) != 0) {
2202 free_nfs_cb_data(data);
2203 return -1;
2204 }
2205
2206 return 0;
2207}
2208
2209
2210
2211
2212
2213/*
2214 * Async utimes()
2215 */
2216static void nfs_utimes_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2217{
2218 struct nfs_cb_data *data = private_data;
2219 struct nfs_context *nfs = data->nfs;
2220 SETATTR3res *res;
2221
2222 if (status == RPC_STATUS_ERROR) {
2223 data->cb(-EFAULT, nfs, command_data, data->private_data);
2224 free_nfs_cb_data(data);
2225 return;
2226 }
2227 if (status == RPC_STATUS_CANCEL) {
2228 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2229 free_nfs_cb_data(data);
2230 return;
2231 }
2232
2233 res = command_data;
2234 if (res->status != NFS3_OK) {
2235 rpc_set_error(nfs->rpc, "NFS: SETATTR failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
2236 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2237 free_nfs_cb_data(data);
2238 return;
2239 }
2240
2241 data->cb(0, nfs, NULL, data->private_data);
2242 free_nfs_cb_data(data);
2243}
2244
2245static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2246{
2247 SETATTR3args args;
2248 struct timeval *utimes_data = data->continue_data;
2249
2250 bzero(&args, sizeof(SETATTR3args));
2251 args.object.data.data_len = data->fh.data.data_len;
2252 args.object.data.data_val = data->fh.data.data_val;
2253 if (utimes_data != NULL) {
2254 args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
2255 args.new_attributes.atime.set_atime_u.atime.seconds = utimes_data[0].tv_sec;
2256 args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
2257 args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
2258 args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
2259 args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
2260 } else {
2261 args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
2262 args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
2263 }
2264
2265 if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
2266 rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
2267 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2268 free_nfs_cb_data(data);
2269 return -1;
2270 }
2271 return 0;
2272}
2273
2274
2275int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
2276{
2277 struct timeval *new_times = NULL;
2278
2279 if (times != NULL) {
2280 new_times = malloc(sizeof(struct timeval)*2);
2281 if (new_times == NULL) {
cbbf9d3e 2282 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
84004dbf
RS		 2283 return -1;
2284 }
2285
2286 memcpy(new_times, times, sizeof(struct timeval)*2);
2287 }
2288
2289 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
cbbf9d3e 2290 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 2291 return -1;
2292 }
2293
2294 return 0;
2295}
2296
2297/*
2298 * Async utime()
2299 */
2300int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
2301{
2302 struct timeval *new_times = NULL;
2303
2304 if (times != NULL) {
2305 new_times = malloc(sizeof(struct timeval)*2);
2306 if (new_times == NULL) {
cbbf9d3e 2307 rpc_set_error(nfs->rpc, "Failed to allocate memory for timeval structure");
84004dbf
RS		 2308 return -1;
2309 }
2310
2311 new_times[0].tv_sec = times->actime;
2312 new_times[0].tv_usec = 0;
2313 new_times[1].tv_sec = times->modtime;
2314 new_times[1].tv_usec = 0;
2315 }
2316
2317 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
cbbf9d3e 2318 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
84004dbf
RS		 2319 return -1;
2320 }
2321
2322 return 0;
2323}
2324
2325
2326
2327
2328
2329/*
2330 * Async access()
2331 */
2332static void nfs_access_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2333{
2334 ACCESS3res *res;
2335 struct nfs_cb_data *data = private_data;
2336 struct nfs_context *nfs = data->nfs;
2337 unsigned int nfsmode = 0;
2338
2339 if (status == RPC_STATUS_ERROR) {
2340 data->cb(-EFAULT, nfs, command_data, data->private_data);
2341 free_nfs_cb_data(data);
2342 return;
2343 }
2344 if (status == RPC_STATUS_CANCEL) {
2345 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2346 free_nfs_cb_data(data);
2347 return;
2348 }
2349
2350 res = command_data;
2351 if (res->status != NFS3_OK) {
2352 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));
2353 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2354 free_nfs_cb_data(data);
2355 return;
2356 }
2357
2358 if (data->continue_int & R_OK) {
2359 nfsmode |= ACCESS3_READ;
2360 }
2361 if (data->continue_int & W_OK) {
2362 nfsmode |= ACCESS3_MODIFY;
2363 }
2364 if (data->continue_int & X_OK) {
2365 nfsmode |= ACCESS3_EXECUTE;
2366 }
2367
2368 if (res->ACCESS3res_u.resok.access != nfsmode) {
2369 rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
2370 nfsmode&ACCESS3_READ?'r':'-',
2371 nfsmode&ACCESS3_MODIFY?'w':'-',
2372 nfsmode&ACCESS3_EXECUTE?'x':'-',
2373 res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
2374 res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
2375 res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
2376 data->cb(-EACCES, nfs, rpc_get_error(nfs->rpc), data->private_data);
2377 free_nfs_cb_data(data);
2378 return;
2379 }
2380
2381 data->cb(0, nfs, NULL, data->private_data);
2382 free_nfs_cb_data(data);
2383}
2384
2385static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2386{
2387 int nfsmode = 0;
2388
2389 if (data->continue_int & R_OK) {
2390 nfsmode |= ACCESS3_READ;
2391 }
2392 if (data->continue_int & W_OK) {
2393 nfsmode |= ACCESS3_MODIFY;
2394 }
2395 if (data->continue_int & X_OK) {
2396 nfsmode |= ACCESS3_EXECUTE;
2397 }
2398
2399 if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
2400 rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
2401 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2402 free_nfs_cb_data(data);
2403 return -1;
2404 }
2405 return 0;
2406}
2407
2408int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
2409{
2410 if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
cbbf9d3e
RS		 2411 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2412 return -1;
84004dbf
RS		 2413 }
2414
2415 return 0;
2416}
2417
2418
2419
2420/*
2421 * Async symlink()
2422 */
2423struct nfs_symlink_data {
2424 char *oldpath;
2425 char *newpathparent;
2426 char *newpathobject;
2427};
2428
2429static void free_nfs_symlink_data(void *mem)
2430{
2431 struct nfs_symlink_data *data = mem;
2432
2433 if (data->oldpath != NULL) {
2434 free(data->oldpath);
2435 }
2436 if (data->newpathparent != NULL) {
2437 free(data->newpathparent);
2438 }
2439 if (data->newpathobject != NULL) {
2440 free(data->newpathobject);
2441 }
2442 free(data);
2443}
2444
2445static void nfs_symlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2446{
2447 SYMLINK3res *res;
2448 struct nfs_cb_data *data = private_data;
2449 struct nfs_context *nfs = data->nfs;
2450 struct nfs_symlink_data *symlink_data = data->continue_data;
2451
2452 if (status == RPC_STATUS_ERROR) {
2453 data->cb(-EFAULT, nfs, command_data, data->private_data);
2454 free_nfs_cb_data(data);
2455 return;
2456 }
2457 if (status == RPC_STATUS_CANCEL) {
2458 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2459 free_nfs_cb_data(data);
2460 return;
2461 }
2462
2463 res = command_data;
2464 if (res->status != NFS3_OK) {
2465 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));
2466 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2467 free_nfs_cb_data(data);
2468 return;
2469 }
2470
2471 data->cb(0, nfs, NULL, data->private_data);
2472 free_nfs_cb_data(data);
2473}
2474
2475static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2476{
2477 struct nfs_symlink_data *symlink_data = data->continue_data;
2478
2479 if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &data->fh, symlink_data->newpathobject, symlink_data->oldpath, data) != 0) {
2480 rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
2481 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2482 free_nfs_cb_data(data);
2483 return -1;
2484 }
2485 return 0;
2486}
2487
2488int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2489{
2490 char *ptr;
2491 struct nfs_symlink_data *symlink_data;
2492
2493 symlink_data = malloc(sizeof(struct nfs_symlink_data));
2494 if (symlink_data == NULL) {
cbbf9d3e 2495 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for symlink data");
84004dbf
RS		 2496 return -1;
2497 }
2498 bzero(symlink_data, sizeof(struct nfs_symlink_data));
2499
2500 symlink_data->oldpath = strdup(oldpath);
2501 if (symlink_data->oldpath == NULL) {
cbbf9d3e 2502 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
84004dbf 2503 free_nfs_symlink_data(symlink_data);
cbbf9d3e 2504 return -1;
84004dbf
RS		 2505 }
2506
2507 symlink_data->newpathparent = strdup(newpath);
2508 if (symlink_data->newpathparent == NULL) {
cbbf9d3e 2509 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
84004dbf 2510 free_nfs_symlink_data(symlink_data);
cbbf9d3e 2511 return -1;
84004dbf
RS		 2512 }
2513
2514 ptr = rindex(symlink_data->newpathparent, '/');
2515 if (ptr == NULL) {
cbbf9d3e 2516 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
84004dbf 2517 free_nfs_symlink_data(symlink_data);
cbbf9d3e 2518 return -1;
84004dbf
RS		 2519 }
2520 *ptr = 0;
2521 ptr++;
2522
2523 symlink_data->newpathobject = strdup(ptr);
2524 if (symlink_data->newpathobject == NULL) {
cbbf9d3e 2525 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for new path");
84004dbf 2526 free_nfs_symlink_data(symlink_data);
cbbf9d3e 2527 return -1;
84004dbf
RS		 2528 }
2529
2530 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		 2531 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2532 return -1;
84004dbf
RS		 2533 }
2534
2535 return 0;
2536}
2537
2538
2539
2540/*
2541 * Async rename()
2542 */
2543struct nfs_rename_data {
2544 char *oldpath;
2545 char *oldobject;
2546 struct nfs_fh3 olddir;
2547 char *newpath;
2548 char *newobject;
2549 struct nfs_fh3 newdir;
2550};
2551
2552static void free_nfs_rename_data(void *mem)
2553{
2554 struct nfs_rename_data *data = mem;
2555
2556 if (data->oldpath != NULL) {
2557 free(data->oldpath);
2558 }
2559 if (data->olddir.data.data_val != NULL) {
2560 free(data->olddir.data.data_val);
2561 }
2562 if (data->newpath != NULL) {
2563 free(data->newpath);
2564 }
2565 if (data->newdir.data.data_val != NULL) {
2566 free(data->newdir.data.data_val);
2567 }
2568 free(data);
2569}
2570
2571static void nfs_rename_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2572{
2573 RENAME3res *res;
2574 struct nfs_cb_data *data = private_data;
2575 struct nfs_context *nfs = data->nfs;
2576 struct nfs_rename_data *rename_data = data->continue_data;
2577
2578 if (status == RPC_STATUS_ERROR) {
2579 data->cb(-EFAULT, nfs, command_data, data->private_data);
2580 free_nfs_cb_data(data);
2581 return;
2582 }
2583 if (status == RPC_STATUS_CANCEL) {
2584 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2585 free_nfs_cb_data(data);
2586 return;
2587 }
2588
2589 res = command_data;
2590 if (res->status != NFS3_OK) {
2591 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));
2592 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2593 free_nfs_cb_data(data);
2594 return;
2595 }
2596
2597 data->cb(0, nfs, NULL, data->private_data);
2598 free_nfs_cb_data(data);
2599}
2600
2601static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2602{
2603 struct nfs_rename_data *rename_data = data->continue_data;
2604
2605 /* steal the filehandle */
2606 rename_data->newdir.data.data_len = data->fh.data.data_len;
2607 rename_data->newdir.data.data_val = data->fh.data.data_val;
2608 data->fh.data.data_val = NULL;
2609
2610 if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
2611 rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
2612 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2613 free_nfs_cb_data(data);
2614 return -1;
2615 }
2616 return 0;
2617}
2618
2619
2620static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2621{
2622 struct nfs_rename_data *rename_data = data->continue_data;
2623
2624 /* steal the filehandle */
2625 rename_data->olddir.data.data_len = data->fh.data.data_len;
2626 rename_data->olddir.data.data_val = data->fh.data.data_val;
2627 data->fh.data.data_val = NULL;
2628
2629 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) {
2630 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
2631 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2632 free_nfs_cb_data(data);
2633 return -1;
2634 }
2635 data->continue_data = NULL;
2636 free_nfs_cb_data(data);
2637
2638 return 0;
2639}
2640
2641
2642int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2643{
2644 char *ptr;
2645 struct nfs_rename_data *rename_data;
2646
2647 rename_data = malloc(sizeof(struct nfs_rename_data));
2648 if (rename_data == NULL) {
cbbf9d3e 2649 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for rename data");
84004dbf
RS		 2650 return -1;
2651 }
2652 bzero(rename_data, sizeof(struct nfs_rename_data));
2653
2654 rename_data->oldpath = strdup(oldpath);
2655 if (rename_data->oldpath == NULL) {
cbbf9d3e 2656 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
84004dbf 2657 free_nfs_rename_data(rename_data);
cbbf9d3e 2658 return -1;
84004dbf
RS		 2659 }
2660 ptr = rindex(rename_data->oldpath, '/');
2661 if (ptr == NULL) {
cbbf9d3e 2662 rpc_set_error(nfs->rpc, "Invalid path %s", oldpath);
84004dbf 2663 free_nfs_rename_data(rename_data);
cbbf9d3e 2664 return -1;
84004dbf
RS		 2665 }
2666 *ptr = 0;
2667 ptr++;
2668 rename_data->oldobject = ptr;
2669
2670
2671 rename_data->newpath = strdup(newpath);
2672 if (rename_data->newpath == NULL) {
cbbf9d3e 2673 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
84004dbf 2674 free_nfs_rename_data(rename_data);
cbbf9d3e 2675 return -1;
84004dbf
RS		 2676 }
2677 ptr = rindex(rename_data->newpath, '/');
2678 if (ptr == NULL) {
cbbf9d3e 2679 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
84004dbf 2680 free_nfs_rename_data(rename_data);
cbbf9d3e 2681 return -1;
84004dbf
RS		 2682 }
2683 *ptr = 0;
2684 ptr++;
2685 rename_data->newobject = ptr;
2686
2687
2688 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		 2689 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2690 return -1;
84004dbf
RS		 2691 }
2692
2693 return 0;
2694}
2695
2696
2697/*
2698 * Async link()
2699 */
2700struct nfs_link_data {
2701 char *oldpath;
2702 struct nfs_fh3 oldfh;
2703 char *newpath;
2704 char *newobject;
2705 struct nfs_fh3 newdir;
2706};
2707
2708static void free_nfs_link_data(void *mem)
2709{
2710 struct nfs_link_data *data = mem;
2711
2712 if (data->oldpath != NULL) {
2713 free(data->oldpath);
2714 }
2715 if (data->oldfh.data.data_val != NULL) {
2716 free(data->oldfh.data.data_val);
2717 }
2718 if (data->newpath != NULL) {
2719 free(data->newpath);
2720 }
2721 if (data->newdir.data.data_val != NULL) {
2722 free(data->newdir.data.data_val);
2723 }
2724 free(data);
2725}
2726
2727static void nfs_link_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
2728{
2729 LINK3res *res;
2730 struct nfs_cb_data *data = private_data;
2731 struct nfs_context *nfs = data->nfs;
2732 struct nfs_link_data *link_data = data->continue_data;
2733
2734 if (status == RPC_STATUS_ERROR) {
2735 data->cb(-EFAULT, nfs, command_data, data->private_data);
2736 free_nfs_cb_data(data);
2737 return;
2738 }
2739 if (status == RPC_STATUS_CANCEL) {
2740 data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
2741 free_nfs_cb_data(data);
2742 return;
2743 }
2744
2745 res = command_data;
2746 if (res->status != NFS3_OK) {
2747 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));
2748 data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
2749 free_nfs_cb_data(data);
2750 return;
2751 }
2752
2753 data->cb(0, nfs, NULL, data->private_data);
2754 free_nfs_cb_data(data);
2755}
2756
2757static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2758{
2759 struct nfs_link_data *link_data = data->continue_data;
2760
2761 /* steal the filehandle */
2762 link_data->newdir.data.data_len = data->fh.data.data_len;
2763 link_data->newdir.data.data_val = data->fh.data.data_val;
2764 data->fh.data.data_val = NULL;
2765
2766 if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
2767 rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
2768 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2769 free_nfs_cb_data(data);
2770 return -1;
2771 }
2772 return 0;
2773}
2774
2775
2776static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
2777{
2778 struct nfs_link_data *link_data = data->continue_data;
2779
2780 /* steal the filehandle */
2781 link_data->oldfh.data.data_len = data->fh.data.data_len;
2782 link_data->oldfh.data.data_val = data->fh.data.data_val;
2783 data->fh.data.data_val = NULL;
2784
2785 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) {
2786 rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
2787 data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
2788 free_nfs_cb_data(data);
2789 return -1;
2790 }
2791 data->continue_data = NULL;
2792 free_nfs_cb_data(data);
2793
2794 return 0;
2795}
2796
2797
2798int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
2799{
2800 char *ptr;
2801 struct nfs_link_data *link_data;
2802
2803 link_data = malloc(sizeof(struct nfs_link_data));
2804 if (link_data == NULL) {
cbbf9d3e 2805 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for link data");
84004dbf
RS		 2806 return -1;
2807 }
2808 bzero(link_data, sizeof(struct nfs_link_data));
2809
2810 link_data->oldpath = strdup(oldpath);
2811 if (link_data->oldpath == NULL) {
cbbf9d3e 2812 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for oldpath");
84004dbf 2813 free_nfs_link_data(link_data);
cbbf9d3e 2814 return -1;
84004dbf
RS		 2815 }
2816
2817 link_data->newpath = strdup(newpath);
2818 if (link_data->newpath == NULL) {
cbbf9d3e 2819 rpc_set_error(nfs->rpc, "Out of memory, failed to allocate buffer for newpath");
84004dbf 2820 free_nfs_link_data(link_data);
cbbf9d3e 2821 return -1;
84004dbf
RS		 2822 }
2823 ptr = rindex(link_data->newpath, '/');
2824 if (ptr == NULL) {
cbbf9d3e 2825 rpc_set_error(nfs->rpc, "Invalid path %s", newpath);
84004dbf 2826 free_nfs_link_data(link_data);
cbbf9d3e 2827 return -1;
84004dbf
RS		 2828 }
2829 *ptr = 0;
2830 ptr++;
2831 link_data->newobject = ptr;
2832
2833
2834 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		 2835 rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
2836 return -1;
84004dbf
RS		 2837 }
2838
2839 return 0;
2840}
2841
2842
2843//qqq replace later with lseek()
2844off_t nfs_get_current_offset(struct nfsfh *nfsfh)
2845{
2846 return nfsfh->offset;
2847}
2848
17ef62fa
RS		 2849
2850
2851/*
2852 * Get the maximum supported READ3 size by the server
2853 */
2854size_t nfs_get_readmax(struct nfs_context *nfs)
2855{
2856 return nfs->readmax;
2857}
2858
2859/*
2860 * Get the maximum supported WRITE3 size by the server
2861 */
2862size_t nfs_get_writemax(struct nfs_context *nfs)
2863{
2864 return nfs->writemax;
2865}
1896d37b
RS		 2866
2867void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
2868{
2869 va_list ap;
1e8994af 2870 char *str = NULL;
1896d37b 2871
1e8994af
RS		 2872 va_start(ap, error_string);
2873 vasprintf(&str, error_string, ap);
1896d37b
RS		 2874 if (nfs->rpc->error_string != NULL) {
2875 free(nfs->rpc->error_string);
2876 }
1896d37b
RS		 2877 nfs->rpc->error_string = str;
2878 va_end(ap);
2879}
7f0242ca
RS		 2880
2881
2882
2883struct mount_cb_data {
2884 rpc_cb cb;
2885 void *private_data;
2886 char *server;
2887};
2888
2889static void free_mount_cb_data(struct mount_cb_data *data)
2890{
2891 if (data->server != NULL) {
2892 free(data->server);
2893 data->server = NULL;
2894 }
2895
2896 free(data);
2897}
2898
2899static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2900{
2901 struct mount_cb_data *data = private_data;
2902
2903 if (status == RPC_STATUS_ERROR) {
2904 data->cb(rpc, -EFAULT, command_data, data->private_data);
2905 free_mount_cb_data(data);
2906 return;
2907 }
2908 if (status == RPC_STATUS_CANCEL) {
2909 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2910 free_mount_cb_data(data);
2911 return;
2912 }
2913
2914 data->cb(rpc, 0, command_data, data->private_data);
2915 if (rpc_disconnect(rpc, "normal disconnect") != 0) {
2916 rpc_set_error(rpc, "Failed to disconnect\n");
2917 }
2918 free_mount_cb_data(data);
2919}
2920
2921static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2922{
2923 struct mount_cb_data *data = private_data;
2924
2925 if (status == RPC_STATUS_ERROR) {
2926 data->cb(rpc, -EFAULT, command_data, data->private_data);
2927 free_mount_cb_data(data);
2928 return;
2929 }
2930 if (status == RPC_STATUS_CANCEL) {
2931 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2932 free_mount_cb_data(data);
2933 return;
2934 }
2935
2936 if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
2937 data->cb(rpc, -ENOMEM, command_data, data->private_data);
2938 free_mount_cb_data(data);
2939 return;
2940 }
2941}
2942
2943static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2944{
2945 struct mount_cb_data *data = private_data;
2946 uint32_t mount_port;
2947
2948 if (status == RPC_STATUS_ERROR) {
2949 data->cb(rpc, -EFAULT, command_data, data->private_data);
2950 free_mount_cb_data(data);
2951 return;
2952 }
2953 if (status == RPC_STATUS_CANCEL) {
2954 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2955 free_mount_cb_data(data);
2956 return;
2957 }
2958
2959 mount_port = *(uint32_t *)command_data;
2960 if (mount_port == 0) {
2961 rpc_set_error(rpc, "RPC error. Mount program is not available");
2962 data->cb(rpc, -ENOENT, command_data, data->private_data);
2963 free_mount_cb_data(data);
2964 return;
2965 }
2966
2967 rpc_disconnect(rpc, "normal disconnect");
2968 if (rpc_connect_async(rpc, data->server, mount_port, mount_export_4_cb, data) != 0) {
2969 data->cb(rpc, -ENOMEM, command_data, data->private_data);
2970 free_mount_cb_data(data);
2971 return;
2972 }
2973}
2974
2975static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2976{
2977 struct mount_cb_data *data = private_data;
2978
2979 if (status == RPC_STATUS_ERROR) {
2980 data->cb(rpc, -EFAULT, command_data, data->private_data);
2981 free_mount_cb_data(data);
2982 return;
2983 }
2984 if (status == RPC_STATUS_CANCEL) {
2985 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
2986 free_mount_cb_data(data);
2987 return;
2988 }
2989
2990 if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, mount_export_3_cb, private_data) != 0) {
2991 data->cb(rpc, -ENOMEM, command_data, data->private_data);
2992 free_mount_cb_data(data);
2993 return;
2994 }
2995}
2996
2997static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
2998{
2999 struct mount_cb_data *data = private_data;
3000
3001 if (status == RPC_STATUS_ERROR) {
3002 data->cb(rpc, -EFAULT, command_data, data->private_data);
3003 free_mount_cb_data(data);
3004 return;
3005 }
3006 if (status == RPC_STATUS_CANCEL) {
3007 data->cb(rpc, -EINTR, "Command was cancelled", data->private_data);
3008 free_mount_cb_data(data);
3009 return;
3010 }
3011
3012 if (rpc_pmap_null_async(rpc, mount_export_2_cb, data) != 0) {
3013 data->cb(rpc, -ENOMEM, command_data, data->private_data);
3014 free_mount_cb_data(data);
3015 return;
3016 }
3017}
3018
3019int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data)
3020{
3021 struct mount_cb_data *data;
3022
3023 data = malloc(sizeof(struct mount_cb_data));
3024 if (data == NULL) {
3025 return -1;
3026 }
3027 bzero(data, sizeof(struct mount_cb_data));
3028 data->cb = cb;
3029 data->private_data = private_data;
3030 data->server = strdup(server);
3031 if (data->server == NULL) {
3032 free_mount_cb_data(data);
3033 return -1;
3034 }
3035 if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
3036 free_mount_cb_data(data);
3037 return -1;
3038 }
3039
3040 return 0;
3041}
3042
df5af25f
RS		 3043struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
3044{
3045 return nfs->rpc;
3046}
3047
libnfs Piment Noir Debian package repository