lib/libnfs-sync.c

   1 /*
   2    Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as published by
   6    the Free Software Foundation; either version 2.1 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program; if not, see <http://www.gnu.org/licenses/>.
  16 */
  17 /*
  18  * High level api to nfs filesystems
  19  */
  20 #ifdef WIN32
  21 #include "win32_compat.h"
  22 #define DllExport
  23 #else
  24 #include <strings.h>
  25 #include <unistd.h>
  26 #include <sys/statvfs.h>
  27 #include <poll.h>
  28 #include <sys/ioctl.h>
  29 #include <netdb.h>
  30 #include <sys/socket.h>
  31 #include <net/if.h>
  32 #endif
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include "config.h"
  36 #endif
  37
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <sys/types.h>
  42 #include <sys/stat.h>
  43 #include <fcntl.h>
  44 #include <errno.h>
  45
  46 #ifdef HAVE_SYS_SOCKIO_H
  47 #include <sys/sockio.h>
  48 #endif
  49
  50 #include "libnfs.h"
  51 #include "libnfs-raw.h"
  52 #include "libnfs-raw-mount.h"
  53 #include "libnfs-raw-nfs.h"
  54 #include "libnfs-private.h"
  55
  56 struct sync_cb_data {
  57        int is_finished;
  58        int status;
  59        off_t offset;
  60        void *return_data;
  61        int return_int;
  62 };
  63
  64
  65 static void wait_for_reply(struct rpc_context *rpc, struct sync_cb_data *cb_data)
  66 {
  67         struct pollfd pfd;
  68
  69         while (!cb_data->is_finished) {
  70
  71                 pfd.fd = rpc_get_fd(rpc);
  72                 pfd.events = rpc_which_events(rpc);
  73                 if (poll(&pfd, 1, -1) < 0) {
  74                         rpc_set_error(rpc, "Poll failed");
  75                         cb_data->status = -EIO;
  76                         break;
  77                 }
  78                 if (rpc_service(rpc, pfd.revents) < 0) {
  79                         rpc_set_error(rpc, "rpc_service failed");
  80                         cb_data->status = -EIO;
  81                         break;
  82                 }
  83                 if (rpc_get_fd(rpc) == -1) {
  84                         rpc_set_error(rpc, "Socket closed\n");
  85                         break;
  86                 }
  87         }
  88 }
  89
  90 static void wait_for_nfs_reply(struct nfs_context *nfs, struct sync_cb_data *cb_data)
  91 {
  92         struct pollfd pfd;
  93
  94         while (!cb_data->is_finished) {
  95
  96                 pfd.fd = nfs_get_fd(nfs);
  97                 pfd.events = nfs_which_events(nfs);
  98                 if (poll(&pfd, 1, -1) < 0) {
  99                         nfs_set_error(nfs, "Poll failed");
 100                         cb_data->status = -EIO;
 101                         break;
 102                 }
 103                 if (nfs_service(nfs, pfd.revents) < 0) {
 104                         nfs_set_error(nfs, "nfs_service failed");
 105                         cb_data->status = -EIO;
 106                         break;
 107                 }
 108         }
 109 }
 110
 111
 112
 113
 114
 115
 116 /*
 117  * connect to the server and mount the export
 118  */
 119 static void mount_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 120 {
 121         struct sync_cb_data *cb_data = private_data;
 122
 123         cb_data->is_finished = 1;
 124         cb_data->status = status;
 125
 126         if (status < 0) {
 127                 nfs_set_error(nfs, "mount/mnt call failed with \"%s\"", (char *)data);
 128                 return;
 129         }
 130 }
 131
 132 int nfs_mount(struct nfs_context *nfs, const char *server, const char *export)
 133 {
 134         struct sync_cb_data cb_data;
 135         struct rpc_context *rpc = nfs_get_rpc_context(nfs);
 136
 137         cb_data.is_finished = 0;
 138
 139         if (nfs_mount_async(nfs, server, export, mount_cb, &cb_data) != 0) {
 140                 nfs_set_error(nfs, "nfs_mount_async failed");
 141                 return -1;
 142         }
 143
 144         wait_for_nfs_reply(nfs, &cb_data);
 145
 146         /* Dont want any more callbacks even if the socket is closed */
 147         rpc->connect_cb = NULL;
 148
 149         return cb_data.status;
 150 }
 151
 152
 153 /*
 154  * stat()
 155  */
 156 static void stat_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 157 {
 158         struct sync_cb_data *cb_data = private_data;
 159
 160         cb_data->is_finished = 1;
 161         cb_data->status = status;
 162
 163         if (status < 0) {
 164                 nfs_set_error(nfs, "stat call failed with \"%s\"", (char *)data);
 165                 return;
 166         }
 167
 168         memcpy(cb_data->return_data, data, sizeof(struct stat));
 169 }
 170
 171 int nfs_stat(struct nfs_context *nfs, const char *path, struct stat *st)
 172 {
 173         struct sync_cb_data cb_data;
 174
 175         cb_data.is_finished = 0;
 176         cb_data.return_data = st;
 177
 178         if (nfs_stat_async(nfs, path, stat_cb, &cb_data) != 0) {
 179                 nfs_set_error(nfs, "nfs_stat_async failed");
 180                 return -1;
 181         }
 182
 183         wait_for_nfs_reply(nfs, &cb_data);
 184
 185         return cb_data.status;
 186 }
 187
 188
 189
 190
 191 /*
 192  * open()
 193  */
 194 static void open_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 195 {
 196         struct sync_cb_data *cb_data = private_data;
 197         struct nfsfh *fh, **nfsfh;
 198
 199         cb_data->is_finished = 1;
 200         cb_data->status = status;
 201
 202         if (status < 0) {
 203                 nfs_set_error(nfs, "open call failed with \"%s\"", (char *)data);
 204                 return;
 205         }
 206
 207         fh    = data;
 208         nfsfh = cb_data->return_data;
 209         *nfsfh = fh;
 210 }
 211
 212 int nfs_open(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh)
 213 {
 214         struct sync_cb_data cb_data;
 215
 216         cb_data.is_finished = 0;
 217         cb_data.return_data = nfsfh;
 218
 219         if (nfs_open_async(nfs, path, mode, open_cb, &cb_data) != 0) {
 220                 nfs_set_error(nfs, "nfs_open_async failed");
 221                 return -1;
 222         }
 223
 224         wait_for_nfs_reply(nfs, &cb_data);
 225
 226         return cb_data.status;
 227 }
 228
 229
 230
 231
 232 /*
 233  * pread()
 234  */
 235 static void pread_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 236 {
 237         struct sync_cb_data *cb_data = private_data;
 238         char *buffer;
 239         cb_data->is_finished = 1;
 240         cb_data->status = status;
 241
 242         if (status < 0) {
 243                 nfs_set_error(nfs, "pread call failed with \"%s\"", (char *)data);
 244                 return;
 245         }
 246
 247         buffer = cb_data->return_data;
 248         memcpy(buffer, (char *)data, status);
 249 }
 250
 251 int nfs_pread(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buffer)
 252 {
 253         struct sync_cb_data cb_data;
 254
 255         cb_data.is_finished = 0;
 256         cb_data.return_data = buffer;
 257
 258         if (nfs_pread_async(nfs, nfsfh, offset, count, pread_cb, &cb_data) != 0) {
 259                 nfs_set_error(nfs, "nfs_pread_async failed");
 260                 return -1;
 261         }
 262
 263         wait_for_nfs_reply(nfs, &cb_data);
 264
 265         return cb_data.status;
 266 }
 267
 268 /*
 269  * read()
 270  */
 271 int nfs_read(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buffer)
 272 {
 273         return nfs_pread(nfs, nfsfh, nfs_get_current_offset(nfsfh), count, buffer);
 274 }
 275
 276 /*
 277  * close()
 278  */
 279 static void close_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 280 {
 281         struct sync_cb_data *cb_data = private_data;
 282         cb_data->is_finished = 1;
 283         cb_data->status = status;
 284
 285         if (status < 0) {
 286                 nfs_set_error(nfs, "close call failed with \"%s\"", (char *)data);
 287                 return;
 288         }
 289 }
 290
 291 int nfs_close(struct nfs_context *nfs, struct nfsfh *nfsfh)
 292 {
 293         struct sync_cb_data cb_data;
 294
 295         cb_data.is_finished = 0;
 296
 297         if (nfs_close_async(nfs, nfsfh, close_cb, &cb_data) != 0) {
 298                 nfs_set_error(nfs, "nfs_close_async failed");
 299                 return -1;
 300         }
 301
 302         wait_for_nfs_reply(nfs, &cb_data);
 303
 304         return cb_data.status;
 305 }
 306
 307
 308
 309
 310 /*
 311  * fstat()
 312  */
 313 int nfs_fstat(struct nfs_context *nfs, struct nfsfh *nfsfh, struct stat *st)
 314 {
 315         struct sync_cb_data cb_data;
 316
 317         cb_data.is_finished = 0;
 318         cb_data.return_data = st;
 319
 320         if (nfs_fstat_async(nfs, nfsfh, stat_cb, &cb_data) != 0) {
 321                 nfs_set_error(nfs, "nfs_fstat_async failed");
 322                 return -1;
 323         }
 324
 325         wait_for_nfs_reply(nfs, &cb_data);
 326
 327         return cb_data.status;
 328 }
 329
 330
 331 /*
 332  * pwrite()
 333  */
 334 static void pwrite_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 335 {
 336         struct sync_cb_data *cb_data = private_data;
 337         cb_data->is_finished = 1;
 338         cb_data->status = status;
 339
 340         if (status < 0) {
 341                 nfs_set_error(nfs, "pwrite call failed with \"%s\"", (char *)data);
 342                 return;
 343         }
 344 }
 345
 346 int nfs_pwrite(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf)
 347 {
 348         struct sync_cb_data cb_data;
 349
 350         cb_data.is_finished = 0;
 351
 352         if (nfs_pwrite_async(nfs, nfsfh, offset, count, buf, pwrite_cb, &cb_data) != 0) {
 353                 nfs_set_error(nfs, "nfs_pwrite_async failed");
 354                 return -1;
 355         }
 356
 357         wait_for_nfs_reply(nfs, &cb_data);
 358
 359         return cb_data.status;
 360 }
 361
 362 /*
 363  * write()
 364  */
 365 int nfs_write(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf)
 366 {
 367         return nfs_pwrite(nfs, nfsfh, nfs_get_current_offset(nfsfh), count, buf);
 368 }
 369
 370
 371 /*
 372  * fsync()
 373  */
 374 static void fsync_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 375 {
 376         struct sync_cb_data *cb_data = private_data;
 377         cb_data->is_finished = 1;
 378         cb_data->status = status;
 379
 380         if (status < 0) {
 381                 nfs_set_error(nfs, "fsync call failed with \"%s\"", (char *)data);
 382                 return;
 383         }
 384 }
 385
 386 int nfs_fsync(struct nfs_context *nfs, struct nfsfh *nfsfh)
 387 {
 388         struct sync_cb_data cb_data;
 389
 390         cb_data.is_finished = 0;
 391
 392         if (nfs_fsync_async(nfs, nfsfh, fsync_cb, &cb_data) != 0) {
 393                 nfs_set_error(nfs, "nfs_fsync_async failed");
 394                 return -1;
 395         }
 396
 397         wait_for_nfs_reply(nfs, &cb_data);
 398
 399         return cb_data.status;
 400 }
 401
 402
 403
 404
 405 /*
 406  * ftruncate()
 407  */
 408 static void ftruncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 409 {
 410         struct sync_cb_data *cb_data = private_data;
 411         cb_data->is_finished = 1;
 412         cb_data->status = status;
 413
 414         if (status < 0) {
 415                 nfs_set_error(nfs, "ftruncate call failed with \"%s\"", (char *)data);
 416                 return;
 417         }
 418 }
 419
 420 int nfs_ftruncate(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length)
 421 {
 422         struct sync_cb_data cb_data;
 423
 424         cb_data.is_finished = 0;
 425
 426         if (nfs_ftruncate_async(nfs, nfsfh, length, ftruncate_cb, &cb_data) != 0) {
 427                 nfs_set_error(nfs, "nfs_ftruncate_async failed");
 428                 return -1;
 429         }
 430
 431         wait_for_nfs_reply(nfs, &cb_data);
 432
 433         return cb_data.status;
 434 }
 435
 436
 437
 438 /*
 439  * truncate()
 440  */
 441 static void truncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 442 {
 443         struct sync_cb_data *cb_data = private_data;
 444         cb_data->is_finished = 1;
 445         cb_data->status = status;
 446
 447         if (status < 0) {
 448                 nfs_set_error(nfs, "truncate call failed with \"%s\"", (char *)data);
 449                 return;
 450         }
 451 }
 452
 453 int nfs_truncate(struct nfs_context *nfs, const char *path, off_t length)
 454 {
 455         struct sync_cb_data cb_data;
 456
 457         cb_data.is_finished = 0;
 458
 459         if (nfs_truncate_async(nfs, path, length, truncate_cb, &cb_data) != 0) {
 460                 nfs_set_error(nfs, "nfs_ftruncate_async failed");
 461                 return -1;
 462         }
 463
 464         wait_for_nfs_reply(nfs, &cb_data);
 465
 466         return cb_data.status;
 467 }
 468
 469
 470
 471
 472
 473 /*
 474  * mkdir()
 475  */
 476 static void mkdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 477 {
 478         struct sync_cb_data *cb_data = private_data;
 479         cb_data->is_finished = 1;
 480         cb_data->status = status;
 481
 482         if (status < 0) {
 483                 nfs_set_error(nfs, "mkdir call failed with \"%s\"", (char *)data);
 484                 return;
 485         }
 486 }
 487
 488 int nfs_mkdir(struct nfs_context *nfs, const char *path)
 489 {
 490         struct sync_cb_data cb_data;
 491
 492         cb_data.is_finished = 0;
 493
 494         if (nfs_mkdir_async(nfs, path, mkdir_cb, &cb_data) != 0) {
 495                 nfs_set_error(nfs, "nfs_mkdir_async failed");
 496                 return -1;
 497         }
 498
 499         wait_for_nfs_reply(nfs, &cb_data);
 500
 501         return cb_data.status;
 502 }
 503
 504
 505
 506
 507
 508 /*
 509  * rmdir()
 510  */
 511 static void rmdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 512 {
 513         struct sync_cb_data *cb_data = private_data;
 514         cb_data->is_finished = 1;
 515         cb_data->status = status;
 516
 517         if (status < 0) {
 518                 nfs_set_error(nfs, "rmdir call failed with \"%s\"", (char *)data);
 519                 return;
 520         }
 521 }
 522
 523 int nfs_rmdir(struct nfs_context *nfs, const char *path)
 524 {
 525         struct sync_cb_data cb_data;
 526
 527         cb_data.is_finished = 0;
 528
 529         if (nfs_rmdir_async(nfs, path, rmdir_cb, &cb_data) != 0) {
 530                 nfs_set_error(nfs, "nfs_rmdir_async failed");
 531                 return -1;
 532         }
 533
 534         wait_for_nfs_reply(nfs, &cb_data);
 535
 536         return cb_data.status;
 537 }
 538
 539
 540
 541 /*
 542  * creat()
 543  */
 544 static void creat_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 545 {
 546         struct sync_cb_data *cb_data = private_data;
 547         struct nfsfh *fh, **nfsfh;
 548
 549         cb_data->is_finished = 1;
 550         cb_data->status = status;
 551
 552         if (status < 0) {
 553                 nfs_set_error(nfs, "creat call failed with \"%s\"", (char *)data);
 554                 return;
 555         }
 556
 557         fh    = data;
 558         nfsfh = cb_data->return_data;
 559         *nfsfh = fh;
 560 }
 561
 562 int nfs_creat(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh)
 563 {
 564         struct sync_cb_data cb_data;
 565
 566         cb_data.is_finished = 0;
 567         cb_data.return_data = nfsfh;
 568
 569         if (nfs_creat_async(nfs, path, mode, creat_cb, &cb_data) != 0) {
 570                 nfs_set_error(nfs, "nfs_creat_async failed");
 571                 return -1;
 572         }
 573
 574         wait_for_nfs_reply(nfs, &cb_data);
 575
 576         return cb_data.status;
 577 }
 578
 579
 580
 581
 582 /*
 583  * unlink()
 584  */
 585 static void unlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 586 {
 587         struct sync_cb_data *cb_data = private_data;
 588
 589         cb_data->is_finished = 1;
 590         cb_data->status = status;
 591
 592         if (status < 0) {
 593                 nfs_set_error(nfs, "unlink call failed with \"%s\"", (char *)data);
 594                 return;
 595         }
 596 }
 597
 598 int nfs_unlink(struct nfs_context *nfs, const char *path)
 599 {
 600         struct sync_cb_data cb_data;
 601
 602         cb_data.is_finished = 0;
 603
 604         if (nfs_unlink_async(nfs, path, unlink_cb, &cb_data) != 0) {
 605                 nfs_set_error(nfs, "nfs_unlink_async failed");
 606                 return -1;
 607         }
 608
 609         wait_for_nfs_reply(nfs, &cb_data);
 610
 611         return cb_data.status;
 612 }
 613
 614
 615
 616 /*
 617  * opendir()
 618  */
 619 static void opendir_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 620 {
 621         struct sync_cb_data *cb_data = private_data;
 622         struct nfsdir *dir, **nfsdir;
 623
 624         cb_data->is_finished = 1;
 625         cb_data->status = status;
 626
 627         if (status < 0) {
 628                 nfs_set_error(nfs, "opendir call failed with \"%s\"", (char *)data);
 629                 return;
 630         }
 631
 632         dir     = data;
 633         nfsdir  = cb_data->return_data;
 634         *nfsdir = dir;
 635 }
 636
 637 int nfs_opendir(struct nfs_context *nfs, const char *path, struct nfsdir **nfsdir)
 638 {
 639         struct sync_cb_data cb_data;
 640
 641         cb_data.is_finished = 0;
 642         cb_data.return_data = nfsdir;
 643
 644         if (nfs_opendir_async(nfs, path, opendir_cb, &cb_data) != 0) {
 645                 nfs_set_error(nfs, "nfs_opendir_async failed");
 646                 return -1;
 647         }
 648
 649         wait_for_nfs_reply(nfs, &cb_data);
 650
 651         return cb_data.status;
 652 }
 653
 654
 655 /*
 656  * lseek()
 657  */
 658 static void lseek_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 659 {
 660         struct sync_cb_data *cb_data = private_data;
 661
 662         cb_data->is_finished = 1;
 663         cb_data->status = status;
 664
 665         if (status < 0) {
 666                 nfs_set_error(nfs, "lseek call failed with \"%s\"", (char *)data);
 667                 return;
 668         }
 669
 670         if (cb_data->return_data != NULL) {
 671                 memcpy(cb_data->return_data, data, sizeof(off_t));
 672         }
 673 }
 674
 675 int nfs_lseek(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, off_t *current_offset)
 676 {
 677         struct sync_cb_data cb_data;
 678
 679         cb_data.is_finished = 0;
 680         cb_data.return_data = current_offset;
 681
 682         if (nfs_lseek_async(nfs, nfsfh, offset, whence, lseek_cb, &cb_data) != 0) {
 683                 nfs_set_error(nfs, "nfs_lseek_async failed");
 684                 return -1;
 685         }
 686
 687         wait_for_nfs_reply(nfs, &cb_data);
 688
 689         return cb_data.status;
 690 }
 691
 692
 693
 694 /*
 695  * statvfs()
 696  */
 697 static void statvfs_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 698 {
 699         struct sync_cb_data *cb_data = private_data;
 700
 701         cb_data->is_finished = 1;
 702         cb_data->status = status;
 703
 704         if (status < 0) {
 705                 nfs_set_error(nfs, "statvfs call failed with \"%s\"", (char *)data);
 706                 return;
 707         }
 708
 709         memcpy(cb_data->return_data, data, sizeof(struct statvfs));
 710 }
 711
 712 int nfs_statvfs(struct nfs_context *nfs, const char *path, struct statvfs *svfs)
 713 {
 714         struct sync_cb_data cb_data;
 715
 716         cb_data.is_finished = 0;
 717         cb_data.return_data = svfs;
 718
 719         if (nfs_statvfs_async(nfs, path, statvfs_cb, &cb_data) != 0) {
 720                 nfs_set_error(nfs, "nfs_statvfs_async failed");
 721                 return -1;
 722         }
 723
 724         wait_for_nfs_reply(nfs, &cb_data);
 725
 726         return cb_data.status;
 727 }
 728
 729
 730
 731
 732
 733 /*
 734  * readlink()
 735  */
 736 static void readlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 737 {
 738         struct sync_cb_data *cb_data = private_data;
 739
 740         cb_data->is_finished = 1;
 741         cb_data->status = status;
 742
 743         if (status < 0) {
 744                 nfs_set_error(nfs, "readlink call failed with \"%s\"", (char *)data);
 745                 return;
 746         }
 747
 748         if (strlen(data) > (size_t)cb_data->return_int) {
 749                 nfs_set_error(nfs, "Too small buffer for readlink");
 750                 cb_data->status = -ENAMETOOLONG;
 751                 return;
 752         }
 753
 754         memcpy(cb_data->return_data, data, strlen(data)+1);
 755 }
 756
 757 int nfs_readlink(struct nfs_context *nfs, const char *path, char *buf, int bufsize)
 758 {
 759         struct sync_cb_data cb_data;
 760
 761         cb_data.is_finished = 0;
 762         cb_data.return_data = buf;
 763         cb_data.return_int  = bufsize;
 764
 765         if (nfs_readlink_async(nfs, path, readlink_cb, &cb_data) != 0) {
 766                 nfs_set_error(nfs, "nfs_readlink_async failed");
 767                 return -1;
 768         }
 769
 770         wait_for_nfs_reply(nfs, &cb_data);
 771
 772         return cb_data.status;
 773 }
 774
 775
 776
 777 /*
 778  * chmod()
 779  */
 780 static void chmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 781 {
 782         struct sync_cb_data *cb_data = private_data;
 783
 784         cb_data->is_finished = 1;
 785         cb_data->status = status;
 786
 787         if (status < 0) {
 788                 nfs_set_error(nfs, "chmod call failed with \"%s\"", (char *)data);
 789                 return;
 790         }
 791 }
 792
 793 int nfs_chmod(struct nfs_context *nfs, const char *path, int mode)
 794 {
 795         struct sync_cb_data cb_data;
 796
 797         cb_data.is_finished = 0;
 798
 799         if (nfs_chmod_async(nfs, path, mode, chmod_cb, &cb_data) != 0) {
 800                 nfs_set_error(nfs, "nfs_chmod_async failed");
 801                 return -1;
 802         }
 803
 804         wait_for_nfs_reply(nfs, &cb_data);
 805
 806         return cb_data.status;
 807 }
 808
 809
 810
 811
 812 /*
 813  * fchmod()
 814  */
 815 static void fchmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 816 {
 817         struct sync_cb_data *cb_data = private_data;
 818
 819         cb_data->is_finished = 1;
 820         cb_data->status = status;
 821
 822         if (status < 0) {
 823                 nfs_set_error(nfs, "fchmod call failed with \"%s\"", (char *)data);
 824                 return;
 825         }
 826 }
 827
 828 int nfs_fchmod(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode)
 829 {
 830         struct sync_cb_data cb_data;
 831
 832         cb_data.is_finished = 0;
 833
 834         if (nfs_fchmod_async(nfs, nfsfh, mode, fchmod_cb, &cb_data) != 0) {
 835                 nfs_set_error(nfs, "nfs_fchmod_async failed");
 836                 return -1;
 837         }
 838
 839         wait_for_nfs_reply(nfs, &cb_data);
 840
 841         return cb_data.status;
 842 }
 843
 844
 845
 846
 847 /*
 848  * chown()
 849  */
 850 static void chown_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 851 {
 852         struct sync_cb_data *cb_data = private_data;
 853
 854         cb_data->is_finished = 1;
 855         cb_data->status = status;
 856
 857         if (status < 0) {
 858                 nfs_set_error(nfs, "chown call failed with \"%s\"", (char *)data);
 859                 return;
 860         }
 861 }
 862
 863 int nfs_chown(struct nfs_context *nfs, const char *path, int uid, int gid)
 864 {
 865         struct sync_cb_data cb_data;
 866
 867         cb_data.is_finished = 0;
 868
 869         if (nfs_chown_async(nfs, path, uid, gid, chown_cb, &cb_data) != 0) {
 870                 nfs_set_error(nfs, "nfs_chown_async failed");
 871                 return -1;
 872         }
 873
 874         wait_for_nfs_reply(nfs, &cb_data);
 875
 876         return cb_data.status;
 877 }
 878
 879 /*
 880  * fchown()
 881  */
 882 static void fchown_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 883 {
 884         struct sync_cb_data *cb_data = private_data;
 885
 886         cb_data->is_finished = 1;
 887         cb_data->status = status;
 888
 889         if (status < 0) {
 890                 nfs_set_error(nfs, "fchown call failed with \"%s\"", (char *)data);
 891                 return;
 892         }
 893 }
 894
 895 int nfs_fchown(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid)
 896 {
 897         struct sync_cb_data cb_data;
 898
 899         cb_data.is_finished = 0;
 900
 901         if (nfs_fchown_async(nfs, nfsfh, uid, gid, fchown_cb, &cb_data) != 0) {
 902                 nfs_set_error(nfs, "nfs_fchown_async failed");
 903                 return -1;
 904         }
 905
 906         wait_for_nfs_reply(nfs, &cb_data);
 907
 908         return cb_data.status;
 909 }
 910
 911
 912
 913 /*
 914  * utimes()
 915  */
 916 static void utimes_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 917 {
 918         struct sync_cb_data *cb_data = private_data;
 919
 920         cb_data->is_finished = 1;
 921         cb_data->status = status;
 922
 923         if (status < 0) {
 924                 nfs_set_error(nfs, "utimes call failed with \"%s\"", (char *)data);
 925                 return;
 926         }
 927 }
 928
 929 int nfs_utimes(struct nfs_context *nfs, const char *path, struct timeval *times)
 930 {
 931         struct sync_cb_data cb_data;
 932
 933         cb_data.is_finished = 0;
 934
 935         if (nfs_utimes_async(nfs, path, times, utimes_cb, &cb_data) != 0) {
 936                 nfs_set_error(nfs, "nfs_utimes_async failed");
 937                 return -1;
 938         }
 939
 940         wait_for_nfs_reply(nfs, &cb_data);
 941
 942         return cb_data.status;
 943 }
 944
 945
 946
 947 /*
 948  * utime()
 949  */
 950 static void utime_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 951 {
 952         struct sync_cb_data *cb_data = private_data;
 953
 954         cb_data->is_finished = 1;
 955         cb_data->status = status;
 956
 957         if (status < 0) {
 958                 nfs_set_error(nfs, "utime call failed with \"%s\"", (char *)data);
 959                 return;
 960         }
 961 }
 962
 963 int nfs_utime(struct nfs_context *nfs, const char *path, struct utimbuf *times)
 964 {
 965         struct sync_cb_data cb_data;
 966
 967         cb_data.is_finished = 0;
 968
 969         if (nfs_utime_async(nfs, path, times, utime_cb, &cb_data) != 0) {
 970                 nfs_set_error(nfs, "nfs_utimes_async failed");
 971                 return -1;
 972         }
 973
 974         wait_for_nfs_reply(nfs, &cb_data);
 975
 976         return cb_data.status;
 977 }
 978
 979
 980
 981
 982 /*
 983  * access()
 984  */
 985 static void access_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
 986 {
 987         struct sync_cb_data *cb_data = private_data;
 988
 989         cb_data->is_finished = 1;
 990         cb_data->status = status;
 991
 992         if (status < 0) {
 993                 nfs_set_error(nfs, "access call failed with \"%s\"", (char *)data);
 994                 return;
 995         }
 996 }
 997
 998 int nfs_access(struct nfs_context *nfs, const char *path, int mode)
 999 {
1000         struct sync_cb_data cb_data;
1001
1002         cb_data.is_finished = 0;
1003
1004         if (nfs_access_async(nfs, path, mode, access_cb, &cb_data) != 0) {
1005                 nfs_set_error(nfs, "nfs_access_async failed");
1006                 return -1;
1007         }
1008
1009         wait_for_nfs_reply(nfs, &cb_data);
1010
1011         return cb_data.status;
1012 }
1013
1014
1015
1016 /*
1017  * symlink()
1018  */
1019 static void symlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1020 {
1021         struct sync_cb_data *cb_data = private_data;
1022
1023         cb_data->is_finished = 1;
1024         cb_data->status = status;
1025
1026         if (status < 0) {
1027                 nfs_set_error(nfs, "symlink call failed with \"%s\"", (char *)data);
1028                 return;
1029         }
1030 }
1031
1032 int nfs_symlink(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1033 {
1034         struct sync_cb_data cb_data;
1035
1036         cb_data.is_finished = 0;
1037
1038         if (nfs_symlink_async(nfs, oldpath, newpath, symlink_cb, &cb_data) != 0) {
1039                 nfs_set_error(nfs, "nfs_symlink_async failed");
1040                 return -1;
1041         }
1042
1043         wait_for_nfs_reply(nfs, &cb_data);
1044
1045         return cb_data.status;
1046 }
1047
1048
1049
1050 /*
1051  * rename()
1052  */
1053 static void rename_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1054 {
1055         struct sync_cb_data *cb_data = private_data;
1056
1057         cb_data->is_finished = 1;
1058         cb_data->status = status;
1059
1060         if (status < 0) {
1061                 nfs_set_error(nfs, "rename call failed with \"%s\"", (char *)data);
1062                 return;
1063         }
1064 }
1065
1066 int nfs_rename(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1067 {
1068         struct sync_cb_data cb_data;
1069
1070         cb_data.is_finished = 0;
1071
1072         if (nfs_rename_async(nfs, oldpath, newpath, rename_cb, &cb_data) != 0) {
1073                 nfs_set_error(nfs, "nfs_rename_async failed");
1074                 return -1;
1075         }
1076
1077         wait_for_nfs_reply(nfs, &cb_data);
1078
1079         return cb_data.status;
1080 }
1081
1082
1083
1084 /*
1085  * link()
1086  */
1087 static void link_cb(int status, struct nfs_context *nfs, void *data, void *private_data)
1088 {
1089         struct sync_cb_data *cb_data = private_data;
1090
1091         cb_data->is_finished = 1;
1092         cb_data->status = status;
1093
1094         if (status < 0) {
1095                 nfs_set_error(nfs, "link call failed with \"%s\"", (char *)data);
1096                 return;
1097         }
1098 }
1099
1100 int nfs_link(struct nfs_context *nfs, const char *oldpath, const char *newpath)
1101 {
1102         struct sync_cb_data cb_data;
1103
1104         cb_data.is_finished = 0;
1105
1106         if (nfs_link_async(nfs, oldpath, newpath, link_cb, &cb_data) != 0) {
1107                 nfs_set_error(nfs, "nfs_link_async failed");
1108                 return -1;
1109         }
1110
1111         wait_for_nfs_reply(nfs, &cb_data);
1112
1113         return cb_data.status;
1114 }
1115
1116 void mount_getexports_cb(struct rpc_context *mount_context, int status, void *data, void *private_data)
1117 {
1118         struct sync_cb_data *cb_data = private_data;
1119         exports export = *(exports *)data;
1120
1121         cb_data->is_finished = 1;
1122         cb_data->status = status;
1123         cb_data->return_data = NULL;
1124
1125         if (status != 0) {
1126                 rpc_set_error(mount_context, "mount/export call failed with \"%s\"", (char *)data);
1127                 return;
1128         }
1129
1130         while (export != NULL) {
1131                 exports new_export;
1132
1133                 new_export = malloc(sizeof(*new_export));
1134                 memset(new_export, 0, sizeof(*new_export));
1135                 new_export->ex_dir  = strdup(export->ex_dir);
1136                 new_export->ex_next = cb_data->return_data;
1137
1138                 cb_data->return_data = new_export;
1139
1140                 export = export->ex_next;
1141         }
1142 }
1143
1144 struct exportnode *mount_getexports(const char *server)
1145 {
1146         struct sync_cb_data cb_data;
1147         struct rpc_context *rpc;
1148
1149
1150         cb_data.is_finished = 0;
1151         cb_data.return_data = NULL;
1152
1153         rpc = rpc_init_context();
1154         if (mount_getexports_async(rpc, server, mount_getexports_cb, &cb_data) != 0) {
1155                 rpc_destroy_context(rpc);
1156                 return NULL;
1157         }
1158
1159         wait_for_reply(rpc, &cb_data);
1160         rpc_destroy_context(rpc);
1161
1162         return cb_data.return_data;
1163 }
1164
1165 void mount_free_export_list(struct exportnode *exports)
1166 {
1167         struct exportnode *tmp;
1168
1169         while ((tmp = exports)) {
1170                 exports = exports->ex_next;
1171                 free(tmp->ex_dir);
1172                 free(tmp);
1173         }
1174 }
1175
1176
1177
1178 void free_nfs_srvr_list(struct nfs_server_list *srv)
1179 {
1180         while (srv != NULL) {
1181                 struct nfs_server_list *next = srv->next;
1182
1183                 free(srv->addr);
1184                 free(srv);
1185                 srv = next;
1186         }
1187 }
1188
1189 struct nfs_list_data {
1190        int status;
1191        struct nfs_server_list *srvrs;
1192 };
1193
1194 void callit_cb(struct rpc_context *rpc, int status, void *data _U_, void *private_data)
1195 {
1196         struct nfs_list_data *srv_data = private_data;
1197         struct sockaddr *sin;
1198         char hostdd[16];
1199         struct nfs_server_list *srvr;
1200
1201         if (status == RPC_STATUS_CANCEL) {
1202                 return;
1203         }
1204         if (status != 0) {
1205                 srv_data->status = -1;
1206                 return;
1207         }
1208
1209         sin = rpc_get_recv_sockaddr(rpc);
1210         if (sin == NULL) {
1211                 rpc_set_error(rpc, "failed to get sockaddr in CALLIT callback");
1212                 srv_data->status = -1;
1213                 return;
1214         }
1215
1216         if (getnameinfo(sin, sizeof(struct sockaddr_in), &hostdd[0], sizeof(hostdd), NULL, 0, NI_NUMERICHOST) < 0) {
1217                 rpc_set_error(rpc, "getnameinfo failed in CALLIT callback");
1218                 srv_data->status = -1;
1219                 return;
1220         }
1221
1222         /* check for dupes */
1223         for (srvr = srv_data->srvrs; srvr; srvr = srvr->next) {
1224                 if (!strcmp(hostdd, srvr->addr)) {
1225                         return;
1226                 }
1227         }
1228
1229         srvr = malloc(sizeof(struct nfs_server_list));
1230         if (srvr == NULL) {
1231                 rpc_set_error(rpc, "Malloc failed when allocating server structure");
1232                 srv_data->status = -1;
1233                 return;
1234         }
1235
1236         srvr->addr = strdup(hostdd);
1237         if (srvr->addr == NULL) {
1238                 rpc_set_error(rpc, "Strdup failed when allocating server structure");
1239                 free(srvr);
1240                 srv_data->status = -1;
1241                 return;
1242         }
1243
1244         srvr->next = srv_data->srvrs;
1245         srv_data->srvrs = srvr;
1246 }
1247
1248 #ifdef WIN32
1249
1250 static int send_nfsd_probes(struct rpc_context *rpc, INTERFACE_INFO *InterfaceList, int numIfs, struct nfs_list_data *data)
1251 {
1252   int i=0;
1253
1254   for(i = 0; i < numIfs; i++)
1255   {
1256     SOCKADDR *pAddress;
1257     char bcdd[16];
1258     unsigned long nFlags = 0;
1259
1260     pAddress = (SOCKADDR *) & (InterfaceList[i].iiBroadcastAddress);
1261
1262     if(pAddress->sa_family != AF_INET)
1263       continue;
1264
1265     nFlags = InterfaceList[i].iiFlags;
1266
1267     if (!(nFlags & IFF_UP))
1268     {
1269       continue;
1270     }
1271
1272     if (nFlags & IFF_LOOPBACK)
1273     {
1274       continue;
1275     }
1276
1277     if (!(nFlags & IFF_BROADCAST))
1278     {
1279       continue;
1280     }
1281
1282     if (getnameinfo(pAddress, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0)
1283     {
1284       continue;
1285     }
1286
1287     if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0)
1288     {
1289       return -1;
1290     }
1291
1292     if (rpc_pmap_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, callit_cb, data) < 0)
1293     {
1294       return -1;
1295     }
1296   }
1297   return 0;
1298 }
1299
1300 struct nfs_server_list *nfs_find_local_servers(void)
1301 {
1302   struct rpc_context *rpc;
1303   struct nfs_list_data data = {0, NULL};
1304   struct timeval tv_start, tv_current;
1305   int loop;
1306   struct pollfd pfd;
1307   INTERFACE_INFO InterfaceList[20];
1308   unsigned long nBytesReturned;
1309   int nNumInterfaces = 0;
1310
1311   rpc = rpc_init_udp_context();
1312   if (rpc == NULL)
1313   {
1314     return NULL;
1315   }
1316
1317   if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0)
1318   {
1319     rpc_destroy_context(rpc);
1320     return NULL;
1321   }
1322
1323   if (WSAIoctl(rpc_get_fd(rpc), SIO_GET_INTERFACE_LIST, 0, 0, &InterfaceList, sizeof(InterfaceList), &nBytesReturned, 0, 0) == SOCKET_ERROR)
1324   {
1325     return NULL;
1326   }
1327
1328   nNumInterfaces = nBytesReturned / sizeof(INTERFACE_INFO);
1329
1330   for (loop=0; loop<3; loop++)
1331   {
1332     if (send_nfsd_probes(rpc, InterfaceList, nNumInterfaces, &data) != 0)
1333     {
1334       rpc_destroy_context(rpc);
1335       return NULL;
1336     }
1337
1338     win32_gettimeofday(&tv_start, NULL);
1339     for(;;)
1340     {
1341       int mpt;
1342
1343       pfd.fd = rpc_get_fd(rpc);
1344       pfd.events = rpc_which_events(rpc);
1345
1346       win32_gettimeofday(&tv_current, NULL);
1347       mpt = 1000
1348       -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
1349       +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
1350
1351       if (poll(&pfd, 1, mpt) < 0)
1352       {
1353         free_nfs_srvr_list(data.srvrs);
1354         rpc_destroy_context(rpc);
1355         return NULL;
1356       }
1357       if (pfd.revents == 0)
1358       {
1359         break;
1360       }
1361
1362       if (rpc_service(rpc, pfd.revents) < 0)
1363       {
1364         break;
1365       }
1366     }
1367   }
1368
1369   rpc_destroy_context(rpc);
1370
1371   if (data.status != 0)
1372   {
1373     free_nfs_srvr_list(data.srvrs);
1374     return NULL;
1375   }
1376   return data.srvrs;
1377 }
1378 #else
1379
1380 static int send_nfsd_probes(struct rpc_context *rpc, struct ifconf *ifc, struct nfs_list_data *data)
1381 {
1382         char *ptr;
1383
1384         for (ptr =(char *)(ifc->ifc_buf); ptr < (char *)(ifc->ifc_buf) + ifc->ifc_len; ) {
1385                 struct ifreq *ifr;
1386                 char bcdd[16];
1387
1388                 ifr = (struct ifreq *)ptr;
1389 #ifdef HAVE_SOCKADDR_LEN
1390                 if (ifr->ifr_addr.sa_len > sizeof(struct sockaddr)) {
1391                         ptr += sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len;
1392                 } else {
1393                         ptr += sizeof(ifr->ifr_name) + sizeof(struct sockaddr);
1394                 }
1395 #else
1396                 ptr += sizeof(struct ifreq);
1397 #endif
1398
1399                 if (ifr->ifr_addr.sa_family != AF_INET) {
1400                         continue;
1401                 }
1402                 if (ioctl(rpc_get_fd(rpc), SIOCGIFFLAGS, ifr) < 0) {
1403                         return -1;
1404                 }
1405                 if (!(ifr->ifr_flags & IFF_UP)) {
1406                         continue;
1407                 }
1408                 if (ifr->ifr_flags & IFF_LOOPBACK) {
1409                         continue;
1410                 }
1411                 if (!(ifr->ifr_flags & IFF_BROADCAST)) {
1412                         continue;
1413                 }
1414                 if (ioctl(rpc_get_fd(rpc), SIOCGIFBRDADDR, ifr) < 0) {
1415                         continue;
1416                 }
1417                 if (getnameinfo(&ifr->ifr_broadaddr, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0) {
1418                         continue;
1419                 }
1420                 if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0) {
1421                         return -1;
1422                 }
1423
1424                 if (rpc_pmap_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, callit_cb, data) < 0) {
1425                         return -1;
1426                 }
1427         }
1428
1429         return 0;
1430 }
1431
1432 struct nfs_server_list *nfs_find_local_servers(void)
1433 {
1434         struct rpc_context *rpc;
1435         struct nfs_list_data data = {0, NULL};
1436         struct timeval tv_start, tv_current;
1437         struct ifconf ifc;
1438         int size, loop;
1439         struct pollfd pfd;
1440
1441         rpc = rpc_init_udp_context();
1442         if (rpc == NULL) {
1443                 return NULL;
1444         }
1445
1446         if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0) {
1447                 rpc_destroy_context(rpc);
1448                 return NULL;
1449         }
1450
1451
1452         /* get list of all interfaces */
1453         size = sizeof(struct ifreq);
1454         ifc.ifc_buf = NULL;
1455         ifc.ifc_len = size;
1456
1457         while(ifc.ifc_len > (size - sizeof(struct ifreq))) {
1458                 size *= 2;
1459
1460                 free(ifc.ifc_buf);
1461                 ifc.ifc_len = size;
1462                 ifc.ifc_buf = malloc(size);
1463                 memset(ifc.ifc_buf, 0, size);
1464                 if (ioctl(rpc_get_fd(rpc), SIOCGIFCONF, (caddr_t)&ifc) < 0) {
1465                         rpc_destroy_context(rpc);
1466                         free(ifc.ifc_buf);
1467                         return NULL;
1468                 }
1469         }
1470
1471         for (loop=0; loop<3; loop++) {
1472                 if (send_nfsd_probes(rpc, &ifc, &data) != 0) {
1473                         rpc_destroy_context(rpc);
1474                         free(ifc.ifc_buf);
1475                         return NULL;
1476                 }
1477
1478                 gettimeofday(&tv_start, NULL);
1479                 for(;;) {
1480                         int mpt;
1481
1482                         pfd.fd = rpc_get_fd(rpc);
1483                         pfd.events = rpc_which_events(rpc);
1484
1485                         gettimeofday(&tv_current, NULL);
1486                         mpt = 1000
1487                         -    (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000)
1488                         +    (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000);
1489
1490                         if (poll(&pfd, 1, mpt) < 0) {
1491                                 free_nfs_srvr_list(data.srvrs);
1492                                 rpc_destroy_context(rpc);
1493                                 return NULL;
1494                         }
1495                         if (pfd.revents == 0) {
1496                                 break;
1497                         }
1498
1499                         if (rpc_service(rpc, pfd.revents) < 0) {
1500                                 break;
1501                         }
1502                 }
1503         }
1504
1505         free(ifc.ifc_buf);
1506         rpc_destroy_context(rpc);
1507
1508         if (data.status != 0) {
1509                 free_nfs_srvr_list(data.srvrs);
1510                 return NULL;
1511         }
1512         return data.srvrs;
1513 }
1514 #endif//WIN32