include/libnfs.h

   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  * This is the highlevel interface to access NFS resources using a posix-like interface
  19  */
  20 #include <stdint.h>
  21
  22 struct nfs_context;
  23 struct rpc_context;
  24
  25 #if defined(WIN32)
  26 #define EXTERN __declspec( dllexport )
  27 #else
  28 #define EXTERN
  29 #endif
  30
  31 #if defined(WIN32)
  32 struct statvfs {
  33         uint32_t        f_bsize;
  34         uint32_t        f_frsize;
  35         uint64_t        f_blocks;
  36         uint64_t        f_bfree;
  37         uint64_t        f_bavail;
  38         uint32_t        f_files;
  39         uint32_t        f_ffree;
  40         uint32_t        f_favail;
  41         uint32_t        f_fsid;
  42         uint32_t        f_flag;
  43         uint32_t        f_namemax;
  44 };
  45 struct utimbuf {
  46         time_t actime;
  47         time_t modtime;
  48 };
  49 #define R_OK    4
  50 #define W_OK    2
  51 #define X_OK    1
  52 #endif
  53
  54 /*
  55  * Used for interfacing the async version of the api into an external eventsystem
  56  */
  57 EXTERN int nfs_get_fd(struct nfs_context *nfs);
  58 EXTERN int nfs_which_events(struct nfs_context *nfs);
  59 EXTERN int nfs_service(struct nfs_context *nfs, int revents);
  60
  61 /*
  62  * Used if you need different credentials than the default for the current user.
  63  */
  64 struct AUTH;
  65 EXTERN void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth);
  66
  67
  68 /*
  69  * When an operation failed, this function can extract a detailed error string.
  70  */
  71 EXTERN char *nfs_get_error(struct nfs_context *nfs);
  72
  73
  74 /*
  75  * Callback for all ASYNC nfs functions
  76  */
  77 typedef void (*nfs_cb)(int err, struct nfs_context *nfs, void *data, void *private_data);
  78
  79 /*
  80  * Callback for all ASYNC rpc functions
  81  */
  82 typedef void (*rpc_cb)(struct rpc_context *rpc, int status, void *data, void *private_data);
  83
  84
  85
  86 /*
  87  * NFS CONTEXT.
  88  */
  89 /*
  90  * Create an NFS c, the context.
  91  * Function returns
  92  *  NULL : Failed to create a context.
  93  *  *nfs : A pointer to an nfs context.
  94  */
  95 EXTERN struct nfs_context *nfs_init_context(void);
  96 /*
  97  * Destroy an nfs context.
  98  */
  99 EXTERN void nfs_destroy_context(struct nfs_context *nfs);
 100
 101
 102 struct nfsfh;
 103
 104 /*
 105  * Get the maximum supported READ3 size by the server
 106  */
 107 EXTERN size_t nfs_get_readmax(struct nfs_context *nfs);
 108
 109 /*
 110  * Get the maximum supported WRITE3 size by the server
 111  */
 112 EXTERN size_t nfs_get_writemax(struct nfs_context *nfs);
 113
 114
 115 /*
 116  * MOUNT THE EXPORT
 117  */
 118 /*
 119  * Async nfs mount.
 120  * Function returns
 121  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 122  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 123  *
 124  * When the callback is invoked, status indicates the result:
 125  *      0 : Success.
 126  *          data is NULL
 127  * -errno : An error occured.
 128  *          data is the error string.
 129  */
 130 EXTERN int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *exportname, nfs_cb cb, void *private_data);
 131 /*
 132  * Sync nfs mount.
 133  * Function returns
 134  *      0 : The operation was successfull.
 135  * -errno : The command failed.
 136  */
 137 EXTERN int nfs_mount(struct nfs_context *nfs, const char *server, const char *exportname);
 138
 139
 140
 141
 142 /*
 143  * STAT()
 144  */
 145 /*
 146  * Async stat(<filename>)
 147  * Function returns
 148  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 149  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 150  *
 151  * When the callback is invoked, status indicates the result:
 152  *      0 : Success.
 153  *          data is struct stat *
 154  * -errno : An error occured.
 155  *          data is the error string.
 156  */
 157 struct stat;
 158 EXTERN int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
 159 /*
 160  * Sync stat(<filename>)
 161  * Function returns
 162  *      0 : The operation was successfull.
 163  * -errno : The command failed.
 164  */
 165 EXTERN int nfs_stat(struct nfs_context *nfs, const char *path, struct stat *st);
 166
 167
 168 /*
 169  * FSTAT()
 170  */
 171 /*
 172  * Async fstat(nfsfh *)
 173  * Function returns
 174  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 175  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 176  *
 177  * When the callback is invoked, status indicates the result:
 178  *      0 : Success.
 179  *          data is struct stat *
 180  * -errno : An error occured.
 181  *          data is the error string.
 182  */
 183 EXTERN int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data);
 184 /*
 185  * Sync fstat(nfsfh *)
 186  * Function returns
 187  *      0 : The operation was successfull.
 188  * -errno : The command failed.
 189  */
 190 EXTERN int nfs_fstat(struct nfs_context *nfs, struct nfsfh *nfsfh, struct stat *st);
 191
 192
 193
 194 /*
 195  * OPEN()
 196  */
 197 /*
 198  * Async open(<filename>)
 199  *
 200  * mode is a combination of the flags : O_RDOLNY, O_WRONLY, O_RDWR , O_SYNC
 201  *
 202  * Function returns
 203  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 204  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 205  *
 206  * When the callback is invoked, status indicates the result:
 207  *      0 : Success.
 208  *          data is a struct *nfsfh;
 209  *          The nfsfh is close using nfs_close().
 210  * -errno : An error occured.
 211  *          data is the error string.
 212  */
 213 EXTERN int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data);
 214 /*
 215  * Sync stat(<filename>)
 216  * Function returns
 217  *      0 : The operation was successfull. *nfsfh is filled in.
 218  * -errno : The command failed.
 219  */
 220 EXTERN int nfs_open(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh);
 221
 222
 223
 224
 225 /*
 226  * CLOSE
 227  */
 228 /*
 229  * Async close(nfsfh)
 230  *
 231  * Function returns
 232  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 233  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 234  *
 235  * When the callback is invoked, status indicates the result:
 236  *      0 : Success.
 237  *          data is NULL.
 238  * -errno : An error occured.
 239  *          data is the error string.
 240  */
 241 EXTERN int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data);
 242 /*
 243  * Sync close(nfsfh)
 244  * Function returns
 245  *      0 : The operation was successfull.
 246  * -errno : The command failed.
 247  */
 248 EXTERN int nfs_close(struct nfs_context *nfs, struct nfsfh *nfsfh);
 249
 250
 251 /*
 252  * PREAD()
 253  */
 254 /*
 255  * Async pread()
 256  *
 257  * Function returns
 258  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 259  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 260  *
 261  * When the callback is invoked, status indicates the result:
 262  *    >=0 : Success.
 263  *          status is numer of bytes read.
 264  *          data is a pointer to the returned data.
 265  * -errno : An error occured.
 266  *          data is the error string.
 267  */
 268 EXTERN int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, nfs_cb cb, void *private_data);
 269 /*
 270  * Sync pread()
 271  * Function returns
 272  *    >=0 : numer of bytes read.
 273  * -errno : An error occured.
 274  */
 275 EXTERN int nfs_pread(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf);
 276
 277
 278
 279 /*
 280  * READ()
 281  */
 282 /*
 283  * Async read()
 284  *
 285  * Function returns
 286  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 287  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 288  *
 289  * When the callback is invoked, status indicates the result:
 290  *    >=0 : Success.
 291  *          status is numer of bytes read.
 292  *          data is a pointer to the returned data.
 293  * -errno : An error occured.
 294  *          data is the error string.
 295  */
 296 EXTERN int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, nfs_cb cb, void *private_data);
 297 /*
 298  * Sync read()
 299  * Function returns
 300  *    >=0 : numer of bytes read.
 301  * -errno : An error occured.
 302  */
 303 EXTERN int nfs_read(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf);
 304
 305
 306
 307
 308 /*
 309  * PWRITE()
 310  */
 311 /*
 312  * Async pwrite()
 313  *
 314  * Function returns
 315  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 316  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 317  *
 318  * When the callback is invoked, status indicates the result:
 319  *    >=0 : Success.
 320  *          status is numer of bytes written.
 321  * -errno : An error occured.
 322  *          data is the error string.
 323  */
 324 EXTERN int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf, nfs_cb cb, void *private_data);
 325 /*
 326  * Sync pwrite()
 327  * Function returns
 328  *    >=0 : numer of bytes written.
 329  * -errno : An error occured.
 330  */
 331 EXTERN int nfs_pwrite(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf);
 332
 333
 334 /*
 335  * WRITE()
 336  */
 337 /*
 338  * Async write()
 339  *
 340  * Function returns
 341  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 342  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 343  *
 344  * When the callback is invoked, status indicates the result:
 345  *    >=0 : Success.
 346  *          status is numer of bytes written.
 347  * -errno : An error occured.
 348  *          data is the error string.
 349  */
 350 EXTERN int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf, nfs_cb cb, void *private_data);
 351 /*
 352  * Sync write()
 353  * Function returns
 354  *    >=0 : numer of bytes written.
 355  * -errno : An error occured.
 356  */
 357 EXTERN int nfs_write(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf);
 358
 359
 360 /*
 361  * LSEEK()
 362  */
 363 /*
 364  * Async lseek()
 365  *
 366  * Function returns
 367  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 368  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 369  *
 370  * When the callback is invoked, status indicates the result:
 371  *    >=0 : Success.
 372  *          data is off_t * for the current position.
 373  * -errno : An error occured.
 374  *          data is the error string.
 375  */
 376 EXTERN int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, nfs_cb cb, void *private_data);
 377 /*
 378  * Sync lseek()
 379  * Function returns
 380  *    >=0 : numer of bytes read.
 381  * -errno : An error occured.
 382  */
 383 EXTERN int nfs_lseek(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, off_t *current_offset);
 384
 385
 386 /*
 387  * FSYNC()
 388  */
 389 /*
 390  * Async fsync()
 391  *
 392  * Function returns
 393  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 394  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 395  *
 396  * When the callback is invoked, status indicates the result:
 397  *      0 : Success.
 398  * -errno : An error occured.
 399  *          data is the error string.
 400  */
 401 EXTERN int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data);
 402 /*
 403  * Sync fsync()
 404  * Function returns
 405  *      0 : Success
 406  * -errno : An error occured.
 407  */
 408 EXTERN int nfs_fsync(struct nfs_context *nfs, struct nfsfh *nfsfh);
 409
 410
 411
 412 /*
 413  * TRUNCATE()
 414  */
 415 /*
 416  * Async truncate()
 417  *
 418  * Function returns
 419  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 420  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 421  *
 422  * When the callback is invoked, status indicates the result:
 423  *      0 : Success.
 424  * -errno : An error occured.
 425  *          data is the error string.
 426  */
 427 EXTERN int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length, nfs_cb cb, void *private_data);
 428 /*
 429  * Sync truncate()
 430  * Function returns
 431  *      0 : Success
 432  * -errno : An error occured.
 433  */
 434 EXTERN int nfs_truncate(struct nfs_context *nfs, const char *path, off_t length);
 435
 436
 437
 438 /*
 439  * FTRUNCATE()
 440  */
 441 /*
 442  * Async ftruncate()
 443  *
 444  * Function returns
 445  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 446  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 447  *
 448  * When the callback is invoked, status indicates the result:
 449  *      0 : Success.
 450  * -errno : An error occured.
 451  *          data is the error string.
 452  */
 453 EXTERN int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length, nfs_cb cb, void *private_data);
 454 /*
 455  * Sync ftruncate()
 456  * Function returns
 457  *      0 : Success
 458  * -errno : An error occured.
 459  */
 460 EXTERN int nfs_ftruncate(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length);
 461
 462
 463
 464
 465
 466
 467 /*
 468  * MKDIR()
 469  */
 470 /*
 471  * Async mkdir()
 472  *
 473  * Function returns
 474  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 475  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 476  *
 477  * When the callback is invoked, status indicates the result:
 478  *      0 : Success.
 479  * -errno : An error occured.
 480  *          data is the error string.
 481  */
 482 EXTERN int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
 483 /*
 484  * Sync mkdir()
 485  * Function returns
 486  *      0 : Success
 487  * -errno : An error occured.
 488  */
 489 EXTERN int nfs_mkdir(struct nfs_context *nfs, const char *path);
 490
 491
 492
 493 /*
 494  * RMDIR()
 495  */
 496 /*
 497  * Async rmdir()
 498  *
 499  * Function returns
 500  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 501  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 502  *
 503  * When the callback is invoked, status indicates the result:
 504  *      0 : Success.
 505  * -errno : An error occured.
 506  *          data is the error string.
 507  */
 508 EXTERN int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
 509 /*
 510  * Sync rmdir()
 511  * Function returns
 512  *      0 : Success
 513  * -errno : An error occured.
 514  */
 515 EXTERN int nfs_rmdir(struct nfs_context *nfs, const char *path);
 516
 517
 518
 519
 520 /*
 521  * CREAT()
 522  */
 523 /*
 524  * Async creat()
 525  *
 526  * Function returns
 527  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 528  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 529  *
 530  * When the callback is invoked, status indicates the result:
 531  *      0 : Success.
 532  *          data is a struct *nfsfh;
 533  * -errno : An error occured.
 534  *          data is the error string.
 535  */
 536 EXTERN int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data);
 537 /*
 538  * Sync creat()
 539  * Function returns
 540  *      0 : Success
 541  * -errno : An error occured.
 542  */
 543 EXTERN int nfs_creat(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh);
 544
 545
 546
 547
 548
 549 /*
 550  * UNLINK()
 551  */
 552 /*
 553  * Async unlink()
 554  *
 555  * Function returns
 556  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 557  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 558  *
 559  * When the callback is invoked, status indicates the result:
 560  *      0 : Success.
 561  *          data is NULL
 562  * -errno : An error occured.
 563  *          data is the error string.
 564  */
 565 EXTERN int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
 566 /*
 567  * Sync unlink()
 568  * Function returns
 569  *      0 : Success
 570  * -errno : An error occured.
 571  */
 572 EXTERN int nfs_unlink(struct nfs_context *nfs, const char *path);
 573
 574
 575
 576
 577 /*
 578  * OPENDIR()
 579  */
 580 struct nfsdir;
 581 /*
 582  * Async opendir()
 583  *
 584  * Function returns
 585  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 586  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 587  *
 588  * When struct nfsdir * is returned, this resource is closed/freed by calling nfs_closedir()
 589  *
 590  * When the callback is invoked, status indicates the result:
 591  *      0 : Success.
 592  *          data is struct nfsdir *
 593  * -errno : An error occured.
 594  *          data is the error string.
 595  */
 596 EXTERN int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
 597 /*
 598  * Sync opendir()
 599  * Function returns
 600  *      0 : Success
 601  * -errno : An error occured.
 602  */
 603 EXTERN int nfs_opendir(struct nfs_context *nfs, const char *path, struct nfsdir **nfsdir);
 604
 605
 606
 607 /*
 608  * READDIR()
 609  */
 610 struct nfsdirent  {
 611        struct nfsdirent *next;
 612        char *name;
 613        uint64_t inode;
 614 };
 615 /*
 616  * nfs_readdir() never blocks, so no special sync/async versions are available
 617  */
 618 EXTERN struct nfsdirent *nfs_readdir(struct nfs_context *nfs, struct nfsdir *nfsdir);
 619
 620
 621
 622 /*
 623  * READDIR()
 624  */
 625 /*
 626  * nfs_closedir() never blocks, so no special sync/async versions are available
 627  */
 628 EXTERN void nfs_closedir(struct nfs_context *nfs, struct nfsdir *nfsdir);
 629
 630
 631
 632 /*
 633  * STATVFS()
 634  */
 635 /*
 636  * Async statvfs(<dirname>)
 637  * Function returns
 638  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 639  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 640  *
 641  * When the callback is invoked, status indicates the result:
 642  *      0 : Success.
 643  *          data is struct statvfs *
 644  * -errno : An error occured.
 645  *          data is the error string.
 646  */
 647 struct statvfs;
 648 EXTERN int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
 649 /*
 650  * Sync statvfs(<dirname>)
 651  * Function returns
 652  *      0 : The operation was successfull.
 653  * -errno : The command failed.
 654  */
 655 EXTERN int nfs_statvfs(struct nfs_context *nfs, const char *path, struct statvfs *svfs);
 656
 657
 658 /*
 659  * READLINK()
 660  */
 661 /*
 662  * Async readlink(<name>)
 663  * Function returns
 664  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 665  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 666  *
 667  * When the callback is invoked, status indicates the result:
 668  *      0 : Success.
 669  *          data is a char *
 670  *          data is only valid during the callback and is automatically freed when the callback returns.
 671  * -errno : An error occured.
 672  *          data is the error string.
 673  */
 674 struct statvfs;
 675 EXTERN int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data);
 676 /*
 677  * Sync readlink(<name>)
 678  * Function returns
 679  *      0 : The operation was successfull.
 680  * -errno : The command failed.
 681  */
 682 EXTERN int nfs_readlink(struct nfs_context *nfs, const char *path, char *buf, int bufsize);
 683
 684
 685
 686 /*
 687  * CHMOD()
 688  */
 689 /*
 690  * Async chmod(<name>)
 691  * Function returns
 692  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 693  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 694  *
 695  * When the callback is invoked, status indicates the result:
 696  *      0 : Success.
 697  *          data is NULL
 698  * -errno : An error occured.
 699  *          data is the error string.
 700  */
 701 EXTERN int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data);
 702 /*
 703  * Sync chmod(<name>)
 704  * Function returns
 705  *      0 : The operation was successfull.
 706  * -errno : The command failed.
 707  */
 708 EXTERN int nfs_chmod(struct nfs_context *nfs, const char *path, int mode);
 709
 710
 711
 712 /*
 713  * FCHMOD()
 714  */
 715 /*
 716  * Async fchmod(<handle>)
 717  * Function returns
 718  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 719  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 720  *
 721  * When the callback is invoked, status indicates the result:
 722  *      0 : Success.
 723  *          data is NULL
 724  * -errno : An error occured.
 725  *          data is the error string.
 726  */
 727 EXTERN int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data);
 728 /*
 729  * Sync fchmod(<handle>)
 730  * Function returns
 731  *      0 : The operation was successfull.
 732  * -errno : The command failed.
 733  */
 734 EXTERN int nfs_fchmod(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode);
 735
 736
 737
 738 /*
 739  * CHOWN()
 740  */
 741 /*
 742  * Async chown(<name>)
 743  * Function returns
 744  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 745  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 746  *
 747  * When the callback is invoked, status indicates the result:
 748  *      0 : Success.
 749  *          data is NULL
 750  * -errno : An error occured.
 751  *          data is the error string.
 752  */
 753 EXTERN int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data);
 754 /*
 755  * Sync chown(<name>)
 756  * Function returns
 757  *      0 : The operation was successfull.
 758  * -errno : The command failed.
 759  */
 760 EXTERN int nfs_chown(struct nfs_context *nfs, const char *path, int uid, int gid);
 761
 762
 763
 764 /*
 765  * FCHOWN()
 766  */
 767 /*
 768  * Async fchown(<handle>)
 769  * Function returns
 770  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 771  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 772  *
 773  * When the callback is invoked, status indicates the result:
 774  *      0 : Success.
 775  *          data is NULL
 776  * -errno : An error occured.
 777  *          data is the error string.
 778  */
 779 EXTERN int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data);
 780 /*
 781  * Sync fchown(<handle>)
 782  * Function returns
 783  *      0 : The operation was successfull.
 784  * -errno : The command failed.
 785  */
 786 EXTERN int nfs_fchown(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid);
 787
 788
 789
 790
 791 /*
 792  * UTIMES()
 793  */
 794 /*
 795  * Async utimes(<path>)
 796  * Function returns
 797  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 798  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 799  *
 800  * When the callback is invoked, status indicates the result:
 801  *      0 : Success.
 802  *          data is NULL
 803  * -errno : An error occured.
 804  *          data is the error string.
 805  */
 806 EXTERN int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data);
 807 /*
 808  * Sync utimes(<path>)
 809  * Function returns
 810  *      0 : The operation was successfull.
 811  * -errno : The command failed.
 812  */
 813 EXTERN int nfs_utimes(struct nfs_context *nfs, const char *path, struct timeval *times);
 814
 815
 816 /*
 817  * UTIME()
 818  */
 819 /*
 820  * Async utime(<path>)
 821  * Function returns
 822  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 823  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 824  *
 825  * When the callback is invoked, status indicates the result:
 826  *      0 : Success.
 827  *          data is NULL
 828  * -errno : An error occured.
 829  *          data is the error string.
 830  */
 831 struct utimbuf;
 832 EXTERN int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data);
 833 /*
 834  * Sync utime(<path>)
 835  * Function returns
 836  *      0 : The operation was successfull.
 837  * -errno : The command failed.
 838  */
 839 EXTERN int nfs_utime(struct nfs_context *nfs, const char *path, struct utimbuf *times);
 840
 841
 842
 843
 844 /*
 845  * ACCESS()
 846  */
 847 /*
 848  * Async access(<path>)
 849  * Function returns
 850  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 851  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 852  *
 853  * When the callback is invoked, status indicates the result:
 854  *      0 : Success.
 855  *          data is NULL
 856  * -errno : An error occured.
 857  *          data is the error string.
 858  */
 859 EXTERN int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data);
 860 /*
 861  * Sync access(<path>)
 862  * Function returns
 863  *      0 : The operation was successfull.
 864  * -errno : The command failed.
 865  */
 866 EXTERN int nfs_access(struct nfs_context *nfs, const char *path, int mode);
 867
 868
 869
 870
 871 /*
 872  * SYMLINK()
 873  */
 874 /*
 875  * Async symlink(<path>)
 876  * Function returns
 877  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 878  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 879  *
 880  * When the callback is invoked, status indicates the result:
 881  *      0 : Success.
 882  *          data is NULL
 883  * -errno : An error occured.
 884  *          data is the error string.
 885  */
 886 EXTERN int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data);
 887 /*
 888  * Sync symlink(<path>)
 889  * Function returns
 890  *      0 : The operation was successfull.
 891  * -errno : The command failed.
 892  */
 893 EXTERN int nfs_symlink(struct nfs_context *nfs, const char *oldpath, const char *newpath);
 894
 895
 896 /*
 897  * RENAME()
 898  */
 899 /*
 900  * Async rename(<oldpath>, <newpath>)
 901  * Function returns
 902  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 903  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 904  *
 905  * When the callback is invoked, status indicates the result:
 906  *      0 : Success.
 907  *          data is NULL
 908  * -errno : An error occured.
 909  *          data is the error string.
 910  */
 911 EXTERN int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data);
 912 /*
 913  * Sync rename(<oldpath>, <newpath>)
 914  * Function returns
 915  *      0 : The operation was successfull.
 916  * -errno : The command failed.
 917  */
 918 EXTERN int nfs_rename(struct nfs_context *nfs, const char *oldpath, const char *newpath);
 919
 920
 921
 922 /*
 923  * LINK()
 924  */
 925 /*
 926  * Async link(<oldpath>, <newpath>)
 927  * Function returns
 928  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 929  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 930  *
 931  * When the callback is invoked, status indicates the result:
 932  *      0 : Success.
 933  *          data is NULL
 934  * -errno : An error occured.
 935  *          data is the error string.
 936  */
 937 EXTERN int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data);
 938 /*
 939  * Sync link(<oldpath>, <newpath>)
 940  * Function returns
 941  *      0 : The operation was successfull.
 942  * -errno : The command failed.
 943  */
 944 EXTERN int nfs_link(struct nfs_context *nfs, const char *oldpath, const char *newpath);
 945
 946
 947 /*
 948  * GETEXPORTS()
 949  */
 950 /*
 951  * Async getexports()
 952  * NOTE: You must include 'libnfs-raw-mount.h' to get the definitions of the
 953  * returned structures.
 954  *
 955  * This function will return the list of exports from an NFS server.
 956  *
 957  * Function returns
 958  *  0 : The operation was initiated. Once the operation finishes, the callback will be invoked.
 959  * <0 : An error occured when trying to set up the operation. The callback will not be invoked.
 960  *
 961  * When the callback is invoked, status indicates the result:
 962  *      0 : Success.
 963  *          data is a pointer to an exports pointer:
 964  *          exports export = *(exports *)data;
 965  * -errno : An error occured.
 966  *          data is the error string.
 967  */
 968 EXTERN int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb cb, void *private_data);
 969 /*
 970  * Sync getexports(<server>)
 971  * Function returns
 972  *            NULL : something failed
 973  *  exports export : a linked list of exported directories
 974  *
 975  * returned data must be freed by calling mount_free_export_list(exportnode);
 976  */
 977 EXTERN struct exportnode *mount_getexports(const char *server);
 978
 979 EXTERN void mount_free_export_list(struct exportnode *exports);
 980
 981
 982 //qqq replace later with lseek(cur, 0)
 983 off_t nfs_get_current_offset(struct nfsfh *nfsfh);
 984
 985
 986
 987
 988
 989 struct nfs_server_list {
 990        struct nfs_server_list *next;
 991        char *addr;
 992 };
 993
 994 /*
 995  * Sync find_local_servers(<server>)
 996  * This function will probe all local networks for NFS server. This function will
 997  * block for one second while awaiting for all nfs servers to respond.
 998  *
 999  * Function returns
1000  * NULL : something failed
1001  *
1002  * struct nfs_server_list : a linked list of all discovered servers
1003  *
1004  * returned data must be freed by nfs_free_srvr_list(srv);
1005  */
1006 struct nfs_server_list *nfs_find_local_servers(void);
1007 void free_nfs_srvr_list(struct nfs_server_list *srv);