| 1 | /* |
| 2 | Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com> |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU Lesser General Public License as published by |
| 6 | the Free Software Foundation; either version 2.1 of the License, or |
| 7 | (at your option) any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public License |
| 15 | along with this program; if not, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | /* |
| 18 | * High level api to nfs filesystems |
| 19 | */ |
| 20 | |
| 21 | #if defined (WIN32) |
| 22 | #include <winsock2.h> |
| 23 | #define DllExport |
| 24 | #else |
| 25 | #include <strings.h> |
| 26 | #include <unistd.h> |
| 27 | #include <sys/statvfs.h> |
| 28 | #include <poll.h> |
| 29 | #include <sys/ioctl.h> |
| 30 | #include <netdb.h> |
| 31 | #include <sys/socket.h> |
| 32 | #include <net/if.h> |
| 33 | #endif |
| 34 | |
| 35 | #ifdef HAVE_CONFIG_H |
| 36 | #include "config.h" |
| 37 | #endif |
| 38 | |
| 39 | #include <stdio.h> |
| 40 | #include <stdlib.h> |
| 41 | #include <string.h> |
| 42 | #include <sys/types.h> |
| 43 | #include <sys/stat.h> |
| 44 | #include <fcntl.h> |
| 45 | #include <errno.h> |
| 46 | #include <poll.h> |
| 47 | #include <sys/socket.h> |
| 48 | #include <net/if.h> |
| 49 | #include <netdb.h> |
| 50 | #ifdef HAVE_SYS_SOCKIO_H |
| 51 | #include <sys/sockio.h> |
| 52 | #endif |
| 53 | #include "libnfs.h" |
| 54 | #include "libnfs-raw.h" |
| 55 | #include "libnfs-raw-mount.h" |
| 56 | #include "libnfs-raw-nfs.h" |
| 57 | #include "libnfs-private.h" |
| 58 | |
| 59 | struct sync_cb_data { |
| 60 | int is_finished; |
| 61 | int status; |
| 62 | off_t offset; |
| 63 | void *return_data; |
| 64 | int return_int; |
| 65 | }; |
| 66 | |
| 67 | |
| 68 | static void wait_for_reply(struct rpc_context *rpc, struct sync_cb_data *cb_data) |
| 69 | { |
| 70 | struct pollfd pfd; |
| 71 | |
| 72 | while (!cb_data->is_finished) { |
| 73 | |
| 74 | pfd.fd = rpc_get_fd(rpc); |
| 75 | pfd.events = rpc_which_events(rpc); |
| 76 | if (poll(&pfd, 1, -1) < 0) { |
| 77 | rpc_set_error(rpc, "Poll failed"); |
| 78 | cb_data->status = -EIO; |
| 79 | break; |
| 80 | } |
| 81 | if (rpc_service(rpc, pfd.revents) < 0) { |
| 82 | rpc_set_error(rpc, "rpc_service failed"); |
| 83 | cb_data->status = -EIO; |
| 84 | break; |
| 85 | } |
| 86 | if (rpc_get_fd(rpc) == -1) { |
| 87 | rpc_set_error(rpc, "Socket closed\n"); |
| 88 | break; |
| 89 | } |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | static void wait_for_nfs_reply(struct nfs_context *nfs, struct sync_cb_data *cb_data) |
| 94 | { |
| 95 | struct pollfd pfd; |
| 96 | |
| 97 | while (!cb_data->is_finished) { |
| 98 | |
| 99 | pfd.fd = nfs_get_fd(nfs); |
| 100 | pfd.events = nfs_which_events(nfs); |
| 101 | if (poll(&pfd, 1, -1) < 0) { |
| 102 | nfs_set_error(nfs, "Poll failed"); |
| 103 | cb_data->status = -EIO; |
| 104 | break; |
| 105 | } |
| 106 | if (nfs_service(nfs, pfd.revents) < 0) { |
| 107 | nfs_set_error(nfs, "nfs_service failed"); |
| 108 | cb_data->status = -EIO; |
| 109 | break; |
| 110 | } |
| 111 | if (nfs_get_fd(nfs) == -1) { |
| 112 | char *server = strdup(nfs_get_server(nfs)); |
| 113 | char *export = strdup(nfs_get_export(nfs)); |
| 114 | |
| 115 | if (nfs_mount(nfs, server, export) != 0) { |
| 116 | nfs_set_error(nfs, "Failed to reconnect to nfs server %s", nfs_get_error(nfs)); |
| 117 | free(server); |
| 118 | free(export); |
| 119 | break; |
| 120 | } |
| 121 | free(server); |
| 122 | free(export); |
| 123 | } |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | |
| 128 | |
| 129 | |
| 130 | |
| 131 | |
| 132 | /* |
| 133 | * connect to the server and mount the export |
| 134 | */ |
| 135 | static void mount_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 136 | { |
| 137 | struct sync_cb_data *cb_data = private_data; |
| 138 | |
| 139 | cb_data->is_finished = 1; |
| 140 | cb_data->status = status; |
| 141 | |
| 142 | if (status < 0) { |
| 143 | nfs_set_error(nfs, "mount/mnt call failed with \"%s\"", (char *)data); |
| 144 | return; |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | int nfs_mount(struct nfs_context *nfs, const char *server, const char *export) |
| 149 | { |
| 150 | struct sync_cb_data cb_data; |
| 151 | |
| 152 | cb_data.is_finished = 0; |
| 153 | |
| 154 | if (nfs_mount_async(nfs, server, export, mount_cb, &cb_data) != 0) { |
| 155 | nfs_set_error(nfs, "nfs_mount_async failed"); |
| 156 | return -1; |
| 157 | } |
| 158 | |
| 159 | wait_for_nfs_reply(nfs, &cb_data); |
| 160 | |
| 161 | return cb_data.status; |
| 162 | } |
| 163 | |
| 164 | |
| 165 | /* |
| 166 | * stat() |
| 167 | */ |
| 168 | static void stat_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 169 | { |
| 170 | struct sync_cb_data *cb_data = private_data; |
| 171 | |
| 172 | cb_data->is_finished = 1; |
| 173 | cb_data->status = status; |
| 174 | |
| 175 | if (status < 0) { |
| 176 | nfs_set_error(nfs, "stat call failed with \"%s\"", (char *)data); |
| 177 | return; |
| 178 | } |
| 179 | |
| 180 | memcpy(cb_data->return_data, data, sizeof(struct stat)); |
| 181 | } |
| 182 | |
| 183 | int nfs_stat(struct nfs_context *nfs, const char *path, struct stat *st) |
| 184 | { |
| 185 | struct sync_cb_data cb_data; |
| 186 | |
| 187 | cb_data.is_finished = 0; |
| 188 | cb_data.return_data = st; |
| 189 | |
| 190 | if (nfs_stat_async(nfs, path, stat_cb, &cb_data) != 0) { |
| 191 | nfs_set_error(nfs, "nfs_stat_async failed"); |
| 192 | return -1; |
| 193 | } |
| 194 | |
| 195 | wait_for_nfs_reply(nfs, &cb_data); |
| 196 | |
| 197 | return cb_data.status; |
| 198 | } |
| 199 | |
| 200 | |
| 201 | |
| 202 | |
| 203 | /* |
| 204 | * open() |
| 205 | */ |
| 206 | static void open_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 207 | { |
| 208 | struct sync_cb_data *cb_data = private_data; |
| 209 | struct nfsfh *fh, **nfsfh; |
| 210 | |
| 211 | cb_data->is_finished = 1; |
| 212 | cb_data->status = status; |
| 213 | |
| 214 | if (status < 0) { |
| 215 | nfs_set_error(nfs, "open call failed with \"%s\"", (char *)data); |
| 216 | return; |
| 217 | } |
| 218 | |
| 219 | fh = data; |
| 220 | nfsfh = cb_data->return_data; |
| 221 | *nfsfh = fh; |
| 222 | } |
| 223 | |
| 224 | int nfs_open(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh) |
| 225 | { |
| 226 | struct sync_cb_data cb_data; |
| 227 | |
| 228 | cb_data.is_finished = 0; |
| 229 | cb_data.return_data = nfsfh; |
| 230 | |
| 231 | if (nfs_open_async(nfs, path, mode, open_cb, &cb_data) != 0) { |
| 232 | nfs_set_error(nfs, "nfs_open_async failed"); |
| 233 | return -1; |
| 234 | } |
| 235 | |
| 236 | wait_for_nfs_reply(nfs, &cb_data); |
| 237 | |
| 238 | return cb_data.status; |
| 239 | } |
| 240 | |
| 241 | |
| 242 | |
| 243 | |
| 244 | /* |
| 245 | * pread() |
| 246 | */ |
| 247 | static void pread_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 248 | { |
| 249 | struct sync_cb_data *cb_data = private_data; |
| 250 | char *buffer; |
| 251 | cb_data->is_finished = 1; |
| 252 | cb_data->status = status; |
| 253 | |
| 254 | if (status < 0) { |
| 255 | nfs_set_error(nfs, "pread call failed with \"%s\"", (char *)data); |
| 256 | return; |
| 257 | } |
| 258 | |
| 259 | buffer = cb_data->return_data; |
| 260 | memcpy(buffer, (char *)data, status); |
| 261 | } |
| 262 | |
| 263 | int nfs_pread(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buffer) |
| 264 | { |
| 265 | struct sync_cb_data cb_data; |
| 266 | |
| 267 | cb_data.is_finished = 0; |
| 268 | cb_data.return_data = buffer; |
| 269 | |
| 270 | if (nfs_pread_async(nfs, nfsfh, offset, count, pread_cb, &cb_data) != 0) { |
| 271 | nfs_set_error(nfs, "nfs_pread_async failed"); |
| 272 | return -1; |
| 273 | } |
| 274 | |
| 275 | wait_for_nfs_reply(nfs, &cb_data); |
| 276 | |
| 277 | return cb_data.status; |
| 278 | } |
| 279 | |
| 280 | /* |
| 281 | * read() |
| 282 | */ |
| 283 | int nfs_read(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buffer) |
| 284 | { |
| 285 | return nfs_pread(nfs, nfsfh, nfs_get_current_offset(nfsfh), count, buffer); |
| 286 | } |
| 287 | |
| 288 | /* |
| 289 | * close() |
| 290 | */ |
| 291 | static void close_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 292 | { |
| 293 | struct sync_cb_data *cb_data = private_data; |
| 294 | cb_data->is_finished = 1; |
| 295 | cb_data->status = status; |
| 296 | |
| 297 | if (status < 0) { |
| 298 | nfs_set_error(nfs, "close call failed with \"%s\"", (char *)data); |
| 299 | return; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | int nfs_close(struct nfs_context *nfs, struct nfsfh *nfsfh) |
| 304 | { |
| 305 | struct sync_cb_data cb_data; |
| 306 | |
| 307 | cb_data.is_finished = 0; |
| 308 | |
| 309 | if (nfs_close_async(nfs, nfsfh, close_cb, &cb_data) != 0) { |
| 310 | nfs_set_error(nfs, "nfs_close_async failed"); |
| 311 | return -1; |
| 312 | } |
| 313 | |
| 314 | wait_for_nfs_reply(nfs, &cb_data); |
| 315 | |
| 316 | return cb_data.status; |
| 317 | } |
| 318 | |
| 319 | |
| 320 | |
| 321 | |
| 322 | /* |
| 323 | * fstat() |
| 324 | */ |
| 325 | int nfs_fstat(struct nfs_context *nfs, struct nfsfh *nfsfh, struct stat *st) |
| 326 | { |
| 327 | struct sync_cb_data cb_data; |
| 328 | |
| 329 | cb_data.is_finished = 0; |
| 330 | cb_data.return_data = st; |
| 331 | |
| 332 | if (nfs_fstat_async(nfs, nfsfh, stat_cb, &cb_data) != 0) { |
| 333 | nfs_set_error(nfs, "nfs_fstat_async failed"); |
| 334 | return -1; |
| 335 | } |
| 336 | |
| 337 | wait_for_nfs_reply(nfs, &cb_data); |
| 338 | |
| 339 | return cb_data.status; |
| 340 | } |
| 341 | |
| 342 | |
| 343 | /* |
| 344 | * pwrite() |
| 345 | */ |
| 346 | static void pwrite_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 347 | { |
| 348 | struct sync_cb_data *cb_data = private_data; |
| 349 | cb_data->is_finished = 1; |
| 350 | cb_data->status = status; |
| 351 | |
| 352 | if (status < 0) { |
| 353 | nfs_set_error(nfs, "pwrite call failed with \"%s\"", (char *)data); |
| 354 | return; |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | int nfs_pwrite(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf) |
| 359 | { |
| 360 | struct sync_cb_data cb_data; |
| 361 | |
| 362 | cb_data.is_finished = 0; |
| 363 | |
| 364 | if (nfs_pwrite_async(nfs, nfsfh, offset, count, buf, pwrite_cb, &cb_data) != 0) { |
| 365 | nfs_set_error(nfs, "nfs_pwrite_async failed"); |
| 366 | return -1; |
| 367 | } |
| 368 | |
| 369 | wait_for_nfs_reply(nfs, &cb_data); |
| 370 | |
| 371 | return cb_data.status; |
| 372 | } |
| 373 | |
| 374 | /* |
| 375 | * write() |
| 376 | */ |
| 377 | int nfs_write(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf) |
| 378 | { |
| 379 | return nfs_pwrite(nfs, nfsfh, nfs_get_current_offset(nfsfh), count, buf); |
| 380 | } |
| 381 | |
| 382 | |
| 383 | /* |
| 384 | * fsync() |
| 385 | */ |
| 386 | static void fsync_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 387 | { |
| 388 | struct sync_cb_data *cb_data = private_data; |
| 389 | cb_data->is_finished = 1; |
| 390 | cb_data->status = status; |
| 391 | |
| 392 | if (status < 0) { |
| 393 | nfs_set_error(nfs, "fsync call failed with \"%s\"", (char *)data); |
| 394 | return; |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | int nfs_fsync(struct nfs_context *nfs, struct nfsfh *nfsfh) |
| 399 | { |
| 400 | struct sync_cb_data cb_data; |
| 401 | |
| 402 | cb_data.is_finished = 0; |
| 403 | |
| 404 | if (nfs_fsync_async(nfs, nfsfh, fsync_cb, &cb_data) != 0) { |
| 405 | nfs_set_error(nfs, "nfs_fsync_async failed"); |
| 406 | return -1; |
| 407 | } |
| 408 | |
| 409 | wait_for_nfs_reply(nfs, &cb_data); |
| 410 | |
| 411 | return cb_data.status; |
| 412 | } |
| 413 | |
| 414 | |
| 415 | |
| 416 | |
| 417 | /* |
| 418 | * ftruncate() |
| 419 | */ |
| 420 | static void ftruncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 421 | { |
| 422 | struct sync_cb_data *cb_data = private_data; |
| 423 | cb_data->is_finished = 1; |
| 424 | cb_data->status = status; |
| 425 | |
| 426 | if (status < 0) { |
| 427 | nfs_set_error(nfs, "ftruncate call failed with \"%s\"", (char *)data); |
| 428 | return; |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | int nfs_ftruncate(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length) |
| 433 | { |
| 434 | struct sync_cb_data cb_data; |
| 435 | |
| 436 | cb_data.is_finished = 0; |
| 437 | |
| 438 | if (nfs_ftruncate_async(nfs, nfsfh, length, ftruncate_cb, &cb_data) != 0) { |
| 439 | nfs_set_error(nfs, "nfs_ftruncate_async failed"); |
| 440 | return -1; |
| 441 | } |
| 442 | |
| 443 | wait_for_nfs_reply(nfs, &cb_data); |
| 444 | |
| 445 | return cb_data.status; |
| 446 | } |
| 447 | |
| 448 | |
| 449 | |
| 450 | /* |
| 451 | * truncate() |
| 452 | */ |
| 453 | static void truncate_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 454 | { |
| 455 | struct sync_cb_data *cb_data = private_data; |
| 456 | cb_data->is_finished = 1; |
| 457 | cb_data->status = status; |
| 458 | |
| 459 | if (status < 0) { |
| 460 | nfs_set_error(nfs, "truncate call failed with \"%s\"", (char *)data); |
| 461 | return; |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | int nfs_truncate(struct nfs_context *nfs, const char *path, off_t length) |
| 466 | { |
| 467 | struct sync_cb_data cb_data; |
| 468 | |
| 469 | cb_data.is_finished = 0; |
| 470 | |
| 471 | if (nfs_truncate_async(nfs, path, length, truncate_cb, &cb_data) != 0) { |
| 472 | nfs_set_error(nfs, "nfs_ftruncate_async failed"); |
| 473 | return -1; |
| 474 | } |
| 475 | |
| 476 | wait_for_nfs_reply(nfs, &cb_data); |
| 477 | |
| 478 | return cb_data.status; |
| 479 | } |
| 480 | |
| 481 | |
| 482 | |
| 483 | |
| 484 | |
| 485 | /* |
| 486 | * mkdir() |
| 487 | */ |
| 488 | static void mkdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 489 | { |
| 490 | struct sync_cb_data *cb_data = private_data; |
| 491 | cb_data->is_finished = 1; |
| 492 | cb_data->status = status; |
| 493 | |
| 494 | if (status < 0) { |
| 495 | nfs_set_error(nfs, "mkdir call failed with \"%s\"", (char *)data); |
| 496 | return; |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | int nfs_mkdir(struct nfs_context *nfs, const char *path) |
| 501 | { |
| 502 | struct sync_cb_data cb_data; |
| 503 | |
| 504 | cb_data.is_finished = 0; |
| 505 | |
| 506 | if (nfs_mkdir_async(nfs, path, mkdir_cb, &cb_data) != 0) { |
| 507 | nfs_set_error(nfs, "nfs_mkdir_async failed"); |
| 508 | return -1; |
| 509 | } |
| 510 | |
| 511 | wait_for_nfs_reply(nfs, &cb_data); |
| 512 | |
| 513 | return cb_data.status; |
| 514 | } |
| 515 | |
| 516 | |
| 517 | |
| 518 | |
| 519 | |
| 520 | /* |
| 521 | * rmdir() |
| 522 | */ |
| 523 | static void rmdir_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 524 | { |
| 525 | struct sync_cb_data *cb_data = private_data; |
| 526 | cb_data->is_finished = 1; |
| 527 | cb_data->status = status; |
| 528 | |
| 529 | if (status < 0) { |
| 530 | nfs_set_error(nfs, "rmdir call failed with \"%s\"", (char *)data); |
| 531 | return; |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | int nfs_rmdir(struct nfs_context *nfs, const char *path) |
| 536 | { |
| 537 | struct sync_cb_data cb_data; |
| 538 | |
| 539 | cb_data.is_finished = 0; |
| 540 | |
| 541 | if (nfs_rmdir_async(nfs, path, rmdir_cb, &cb_data) != 0) { |
| 542 | nfs_set_error(nfs, "nfs_rmdir_async failed"); |
| 543 | return -1; |
| 544 | } |
| 545 | |
| 546 | wait_for_nfs_reply(nfs, &cb_data); |
| 547 | |
| 548 | return cb_data.status; |
| 549 | } |
| 550 | |
| 551 | |
| 552 | |
| 553 | /* |
| 554 | * creat() |
| 555 | */ |
| 556 | static void creat_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 557 | { |
| 558 | struct sync_cb_data *cb_data = private_data; |
| 559 | struct nfsfh *fh, **nfsfh; |
| 560 | |
| 561 | cb_data->is_finished = 1; |
| 562 | cb_data->status = status; |
| 563 | |
| 564 | if (status < 0) { |
| 565 | nfs_set_error(nfs, "creat call failed with \"%s\"", (char *)data); |
| 566 | return; |
| 567 | } |
| 568 | |
| 569 | fh = data; |
| 570 | nfsfh = cb_data->return_data; |
| 571 | *nfsfh = fh; |
| 572 | } |
| 573 | |
| 574 | int nfs_creat(struct nfs_context *nfs, const char *path, int mode, struct nfsfh **nfsfh) |
| 575 | { |
| 576 | struct sync_cb_data cb_data; |
| 577 | |
| 578 | cb_data.is_finished = 0; |
| 579 | cb_data.return_data = nfsfh; |
| 580 | |
| 581 | if (nfs_creat_async(nfs, path, mode, creat_cb, &cb_data) != 0) { |
| 582 | nfs_set_error(nfs, "nfs_creat_async failed"); |
| 583 | return -1; |
| 584 | } |
| 585 | |
| 586 | wait_for_nfs_reply(nfs, &cb_data); |
| 587 | |
| 588 | return cb_data.status; |
| 589 | } |
| 590 | |
| 591 | |
| 592 | |
| 593 | |
| 594 | /* |
| 595 | * unlink() |
| 596 | */ |
| 597 | static void unlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 598 | { |
| 599 | struct sync_cb_data *cb_data = private_data; |
| 600 | |
| 601 | cb_data->is_finished = 1; |
| 602 | cb_data->status = status; |
| 603 | |
| 604 | if (status < 0) { |
| 605 | nfs_set_error(nfs, "unlink call failed with \"%s\"", (char *)data); |
| 606 | return; |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | int nfs_unlink(struct nfs_context *nfs, const char *path) |
| 611 | { |
| 612 | struct sync_cb_data cb_data; |
| 613 | |
| 614 | cb_data.is_finished = 0; |
| 615 | |
| 616 | if (nfs_unlink_async(nfs, path, unlink_cb, &cb_data) != 0) { |
| 617 | nfs_set_error(nfs, "nfs_unlink_async failed"); |
| 618 | return -1; |
| 619 | } |
| 620 | |
| 621 | wait_for_nfs_reply(nfs, &cb_data); |
| 622 | |
| 623 | return cb_data.status; |
| 624 | } |
| 625 | |
| 626 | |
| 627 | |
| 628 | /* |
| 629 | * opendir() |
| 630 | */ |
| 631 | static void opendir_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 632 | { |
| 633 | struct sync_cb_data *cb_data = private_data; |
| 634 | struct nfsdir *dir, **nfsdir; |
| 635 | |
| 636 | cb_data->is_finished = 1; |
| 637 | cb_data->status = status; |
| 638 | |
| 639 | if (status < 0) { |
| 640 | nfs_set_error(nfs, "opendir call failed with \"%s\"", (char *)data); |
| 641 | return; |
| 642 | } |
| 643 | |
| 644 | dir = data; |
| 645 | nfsdir = cb_data->return_data; |
| 646 | *nfsdir = dir; |
| 647 | } |
| 648 | |
| 649 | int nfs_opendir(struct nfs_context *nfs, const char *path, struct nfsdir **nfsdir) |
| 650 | { |
| 651 | struct sync_cb_data cb_data; |
| 652 | |
| 653 | cb_data.is_finished = 0; |
| 654 | cb_data.return_data = nfsdir; |
| 655 | |
| 656 | if (nfs_opendir_async(nfs, path, opendir_cb, &cb_data) != 0) { |
| 657 | nfs_set_error(nfs, "nfs_opendir_async failed"); |
| 658 | return -1; |
| 659 | } |
| 660 | |
| 661 | wait_for_nfs_reply(nfs, &cb_data); |
| 662 | |
| 663 | return cb_data.status; |
| 664 | } |
| 665 | |
| 666 | |
| 667 | /* |
| 668 | * lseek() |
| 669 | */ |
| 670 | static void lseek_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 671 | { |
| 672 | struct sync_cb_data *cb_data = private_data; |
| 673 | |
| 674 | cb_data->is_finished = 1; |
| 675 | cb_data->status = status; |
| 676 | |
| 677 | if (status < 0) { |
| 678 | nfs_set_error(nfs, "lseek call failed with \"%s\"", (char *)data); |
| 679 | return; |
| 680 | } |
| 681 | |
| 682 | if (cb_data->return_data != NULL) { |
| 683 | memcpy(cb_data->return_data, data, sizeof(off_t)); |
| 684 | } |
| 685 | } |
| 686 | |
| 687 | int nfs_lseek(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, off_t *current_offset) |
| 688 | { |
| 689 | struct sync_cb_data cb_data; |
| 690 | |
| 691 | cb_data.is_finished = 0; |
| 692 | cb_data.return_data = current_offset; |
| 693 | |
| 694 | if (nfs_lseek_async(nfs, nfsfh, offset, whence, lseek_cb, &cb_data) != 0) { |
| 695 | nfs_set_error(nfs, "nfs_lseek_async failed"); |
| 696 | return -1; |
| 697 | } |
| 698 | |
| 699 | wait_for_nfs_reply(nfs, &cb_data); |
| 700 | |
| 701 | return cb_data.status; |
| 702 | } |
| 703 | |
| 704 | |
| 705 | |
| 706 | /* |
| 707 | * statvfs() |
| 708 | */ |
| 709 | static void statvfs_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 710 | { |
| 711 | struct sync_cb_data *cb_data = private_data; |
| 712 | |
| 713 | cb_data->is_finished = 1; |
| 714 | cb_data->status = status; |
| 715 | |
| 716 | if (status < 0) { |
| 717 | nfs_set_error(nfs, "statvfs call failed with \"%s\"", (char *)data); |
| 718 | return; |
| 719 | } |
| 720 | |
| 721 | memcpy(cb_data->return_data, data, sizeof(struct statvfs)); |
| 722 | } |
| 723 | |
| 724 | int nfs_statvfs(struct nfs_context *nfs, const char *path, struct statvfs *svfs) |
| 725 | { |
| 726 | struct sync_cb_data cb_data; |
| 727 | |
| 728 | cb_data.is_finished = 0; |
| 729 | cb_data.return_data = svfs; |
| 730 | |
| 731 | if (nfs_statvfs_async(nfs, path, statvfs_cb, &cb_data) != 0) { |
| 732 | nfs_set_error(nfs, "nfs_statvfs_async failed"); |
| 733 | return -1; |
| 734 | } |
| 735 | |
| 736 | wait_for_nfs_reply(nfs, &cb_data); |
| 737 | |
| 738 | return cb_data.status; |
| 739 | } |
| 740 | |
| 741 | |
| 742 | |
| 743 | |
| 744 | |
| 745 | /* |
| 746 | * readlink() |
| 747 | */ |
| 748 | static void readlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 749 | { |
| 750 | struct sync_cb_data *cb_data = private_data; |
| 751 | |
| 752 | cb_data->is_finished = 1; |
| 753 | cb_data->status = status; |
| 754 | |
| 755 | if (status < 0) { |
| 756 | nfs_set_error(nfs, "readlink call failed with \"%s\"", (char *)data); |
| 757 | return; |
| 758 | } |
| 759 | |
| 760 | if (strlen(data) > (size_t)cb_data->return_int) { |
| 761 | nfs_set_error(nfs, "Too small buffer for readlink"); |
| 762 | cb_data->status = -ENAMETOOLONG; |
| 763 | return; |
| 764 | } |
| 765 | |
| 766 | memcpy(cb_data->return_data, data, strlen(data)+1); |
| 767 | } |
| 768 | |
| 769 | int nfs_readlink(struct nfs_context *nfs, const char *path, char *buf, int bufsize) |
| 770 | { |
| 771 | struct sync_cb_data cb_data; |
| 772 | |
| 773 | cb_data.is_finished = 0; |
| 774 | cb_data.return_data = buf; |
| 775 | cb_data.return_int = bufsize; |
| 776 | |
| 777 | if (nfs_readlink_async(nfs, path, readlink_cb, &cb_data) != 0) { |
| 778 | nfs_set_error(nfs, "nfs_readlink_async failed"); |
| 779 | return -1; |
| 780 | } |
| 781 | |
| 782 | wait_for_nfs_reply(nfs, &cb_data); |
| 783 | |
| 784 | return cb_data.status; |
| 785 | } |
| 786 | |
| 787 | |
| 788 | |
| 789 | /* |
| 790 | * chmod() |
| 791 | */ |
| 792 | static void chmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 793 | { |
| 794 | struct sync_cb_data *cb_data = private_data; |
| 795 | |
| 796 | cb_data->is_finished = 1; |
| 797 | cb_data->status = status; |
| 798 | |
| 799 | if (status < 0) { |
| 800 | nfs_set_error(nfs, "chmod call failed with \"%s\"", (char *)data); |
| 801 | return; |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | int nfs_chmod(struct nfs_context *nfs, const char *path, int mode) |
| 806 | { |
| 807 | struct sync_cb_data cb_data; |
| 808 | |
| 809 | cb_data.is_finished = 0; |
| 810 | |
| 811 | if (nfs_chmod_async(nfs, path, mode, chmod_cb, &cb_data) != 0) { |
| 812 | nfs_set_error(nfs, "nfs_chmod_async failed"); |
| 813 | return -1; |
| 814 | } |
| 815 | |
| 816 | wait_for_nfs_reply(nfs, &cb_data); |
| 817 | |
| 818 | return cb_data.status; |
| 819 | } |
| 820 | |
| 821 | |
| 822 | |
| 823 | |
| 824 | /* |
| 825 | * fchmod() |
| 826 | */ |
| 827 | static void fchmod_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 828 | { |
| 829 | struct sync_cb_data *cb_data = private_data; |
| 830 | |
| 831 | cb_data->is_finished = 1; |
| 832 | cb_data->status = status; |
| 833 | |
| 834 | if (status < 0) { |
| 835 | nfs_set_error(nfs, "fchmod call failed with \"%s\"", (char *)data); |
| 836 | return; |
| 837 | } |
| 838 | } |
| 839 | |
| 840 | int nfs_fchmod(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode) |
| 841 | { |
| 842 | struct sync_cb_data cb_data; |
| 843 | |
| 844 | cb_data.is_finished = 0; |
| 845 | |
| 846 | if (nfs_fchmod_async(nfs, nfsfh, mode, fchmod_cb, &cb_data) != 0) { |
| 847 | nfs_set_error(nfs, "nfs_fchmod_async failed"); |
| 848 | return -1; |
| 849 | } |
| 850 | |
| 851 | wait_for_nfs_reply(nfs, &cb_data); |
| 852 | |
| 853 | return cb_data.status; |
| 854 | } |
| 855 | |
| 856 | |
| 857 | |
| 858 | |
| 859 | /* |
| 860 | * chown() |
| 861 | */ |
| 862 | static void chown_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 863 | { |
| 864 | struct sync_cb_data *cb_data = private_data; |
| 865 | |
| 866 | cb_data->is_finished = 1; |
| 867 | cb_data->status = status; |
| 868 | |
| 869 | if (status < 0) { |
| 870 | nfs_set_error(nfs, "chown call failed with \"%s\"", (char *)data); |
| 871 | return; |
| 872 | } |
| 873 | } |
| 874 | |
| 875 | int nfs_chown(struct nfs_context *nfs, const char *path, int uid, int gid) |
| 876 | { |
| 877 | struct sync_cb_data cb_data; |
| 878 | |
| 879 | cb_data.is_finished = 0; |
| 880 | |
| 881 | if (nfs_chown_async(nfs, path, uid, gid, chown_cb, &cb_data) != 0) { |
| 882 | nfs_set_error(nfs, "nfs_chown_async failed"); |
| 883 | return -1; |
| 884 | } |
| 885 | |
| 886 | wait_for_nfs_reply(nfs, &cb_data); |
| 887 | |
| 888 | return cb_data.status; |
| 889 | } |
| 890 | |
| 891 | /* |
| 892 | * fchown() |
| 893 | */ |
| 894 | static void fchown_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 895 | { |
| 896 | struct sync_cb_data *cb_data = private_data; |
| 897 | |
| 898 | cb_data->is_finished = 1; |
| 899 | cb_data->status = status; |
| 900 | |
| 901 | if (status < 0) { |
| 902 | nfs_set_error(nfs, "fchown call failed with \"%s\"", (char *)data); |
| 903 | return; |
| 904 | } |
| 905 | } |
| 906 | |
| 907 | int nfs_fchown(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid) |
| 908 | { |
| 909 | struct sync_cb_data cb_data; |
| 910 | |
| 911 | cb_data.is_finished = 0; |
| 912 | |
| 913 | if (nfs_fchown_async(nfs, nfsfh, uid, gid, fchown_cb, &cb_data) != 0) { |
| 914 | nfs_set_error(nfs, "nfs_fchown_async failed"); |
| 915 | return -1; |
| 916 | } |
| 917 | |
| 918 | wait_for_nfs_reply(nfs, &cb_data); |
| 919 | |
| 920 | return cb_data.status; |
| 921 | } |
| 922 | |
| 923 | |
| 924 | |
| 925 | /* |
| 926 | * utimes() |
| 927 | */ |
| 928 | static void utimes_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 929 | { |
| 930 | struct sync_cb_data *cb_data = private_data; |
| 931 | |
| 932 | cb_data->is_finished = 1; |
| 933 | cb_data->status = status; |
| 934 | |
| 935 | if (status < 0) { |
| 936 | nfs_set_error(nfs, "utimes call failed with \"%s\"", (char *)data); |
| 937 | return; |
| 938 | } |
| 939 | } |
| 940 | |
| 941 | int nfs_utimes(struct nfs_context *nfs, const char *path, struct timeval *times) |
| 942 | { |
| 943 | struct sync_cb_data cb_data; |
| 944 | |
| 945 | cb_data.is_finished = 0; |
| 946 | |
| 947 | if (nfs_utimes_async(nfs, path, times, utimes_cb, &cb_data) != 0) { |
| 948 | nfs_set_error(nfs, "nfs_utimes_async failed"); |
| 949 | return -1; |
| 950 | } |
| 951 | |
| 952 | wait_for_nfs_reply(nfs, &cb_data); |
| 953 | |
| 954 | return cb_data.status; |
| 955 | } |
| 956 | |
| 957 | |
| 958 | |
| 959 | /* |
| 960 | * utime() |
| 961 | */ |
| 962 | static void utime_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 963 | { |
| 964 | struct sync_cb_data *cb_data = private_data; |
| 965 | |
| 966 | cb_data->is_finished = 1; |
| 967 | cb_data->status = status; |
| 968 | |
| 969 | if (status < 0) { |
| 970 | nfs_set_error(nfs, "utime call failed with \"%s\"", (char *)data); |
| 971 | return; |
| 972 | } |
| 973 | } |
| 974 | |
| 975 | int nfs_utime(struct nfs_context *nfs, const char *path, struct utimbuf *times) |
| 976 | { |
| 977 | struct sync_cb_data cb_data; |
| 978 | |
| 979 | cb_data.is_finished = 0; |
| 980 | |
| 981 | if (nfs_utime_async(nfs, path, times, utime_cb, &cb_data) != 0) { |
| 982 | nfs_set_error(nfs, "nfs_utimes_async failed"); |
| 983 | return -1; |
| 984 | } |
| 985 | |
| 986 | wait_for_nfs_reply(nfs, &cb_data); |
| 987 | |
| 988 | return cb_data.status; |
| 989 | } |
| 990 | |
| 991 | |
| 992 | |
| 993 | |
| 994 | /* |
| 995 | * access() |
| 996 | */ |
| 997 | static void access_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 998 | { |
| 999 | struct sync_cb_data *cb_data = private_data; |
| 1000 | |
| 1001 | cb_data->is_finished = 1; |
| 1002 | cb_data->status = status; |
| 1003 | |
| 1004 | if (status < 0) { |
| 1005 | nfs_set_error(nfs, "access call failed with \"%s\"", (char *)data); |
| 1006 | return; |
| 1007 | } |
| 1008 | } |
| 1009 | |
| 1010 | int nfs_access(struct nfs_context *nfs, const char *path, int mode) |
| 1011 | { |
| 1012 | struct sync_cb_data cb_data; |
| 1013 | |
| 1014 | cb_data.is_finished = 0; |
| 1015 | |
| 1016 | if (nfs_access_async(nfs, path, mode, access_cb, &cb_data) != 0) { |
| 1017 | nfs_set_error(nfs, "nfs_access_async failed"); |
| 1018 | return -1; |
| 1019 | } |
| 1020 | |
| 1021 | wait_for_nfs_reply(nfs, &cb_data); |
| 1022 | |
| 1023 | return cb_data.status; |
| 1024 | } |
| 1025 | |
| 1026 | |
| 1027 | |
| 1028 | /* |
| 1029 | * symlink() |
| 1030 | */ |
| 1031 | static void symlink_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 1032 | { |
| 1033 | struct sync_cb_data *cb_data = private_data; |
| 1034 | |
| 1035 | cb_data->is_finished = 1; |
| 1036 | cb_data->status = status; |
| 1037 | |
| 1038 | if (status < 0) { |
| 1039 | nfs_set_error(nfs, "symlink call failed with \"%s\"", (char *)data); |
| 1040 | return; |
| 1041 | } |
| 1042 | } |
| 1043 | |
| 1044 | int nfs_symlink(struct nfs_context *nfs, const char *oldpath, const char *newpath) |
| 1045 | { |
| 1046 | struct sync_cb_data cb_data; |
| 1047 | |
| 1048 | cb_data.is_finished = 0; |
| 1049 | |
| 1050 | if (nfs_symlink_async(nfs, oldpath, newpath, symlink_cb, &cb_data) != 0) { |
| 1051 | nfs_set_error(nfs, "nfs_symlink_async failed"); |
| 1052 | return -1; |
| 1053 | } |
| 1054 | |
| 1055 | wait_for_nfs_reply(nfs, &cb_data); |
| 1056 | |
| 1057 | return cb_data.status; |
| 1058 | } |
| 1059 | |
| 1060 | |
| 1061 | |
| 1062 | /* |
| 1063 | * rename() |
| 1064 | */ |
| 1065 | static void rename_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 1066 | { |
| 1067 | struct sync_cb_data *cb_data = private_data; |
| 1068 | |
| 1069 | cb_data->is_finished = 1; |
| 1070 | cb_data->status = status; |
| 1071 | |
| 1072 | if (status < 0) { |
| 1073 | nfs_set_error(nfs, "rename call failed with \"%s\"", (char *)data); |
| 1074 | return; |
| 1075 | } |
| 1076 | } |
| 1077 | |
| 1078 | int nfs_rename(struct nfs_context *nfs, const char *oldpath, const char *newpath) |
| 1079 | { |
| 1080 | struct sync_cb_data cb_data; |
| 1081 | |
| 1082 | cb_data.is_finished = 0; |
| 1083 | |
| 1084 | if (nfs_rename_async(nfs, oldpath, newpath, rename_cb, &cb_data) != 0) { |
| 1085 | nfs_set_error(nfs, "nfs_rename_async failed"); |
| 1086 | return -1; |
| 1087 | } |
| 1088 | |
| 1089 | wait_for_nfs_reply(nfs, &cb_data); |
| 1090 | |
| 1091 | return cb_data.status; |
| 1092 | } |
| 1093 | |
| 1094 | |
| 1095 | |
| 1096 | /* |
| 1097 | * link() |
| 1098 | */ |
| 1099 | static void link_cb(int status, struct nfs_context *nfs, void *data, void *private_data) |
| 1100 | { |
| 1101 | struct sync_cb_data *cb_data = private_data; |
| 1102 | |
| 1103 | cb_data->is_finished = 1; |
| 1104 | cb_data->status = status; |
| 1105 | |
| 1106 | if (status < 0) { |
| 1107 | nfs_set_error(nfs, "link call failed with \"%s\"", (char *)data); |
| 1108 | return; |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | int nfs_link(struct nfs_context *nfs, const char *oldpath, const char *newpath) |
| 1113 | { |
| 1114 | struct sync_cb_data cb_data; |
| 1115 | |
| 1116 | cb_data.is_finished = 0; |
| 1117 | |
| 1118 | if (nfs_link_async(nfs, oldpath, newpath, link_cb, &cb_data) != 0) { |
| 1119 | nfs_set_error(nfs, "nfs_link_async failed"); |
| 1120 | return -1; |
| 1121 | } |
| 1122 | |
| 1123 | wait_for_nfs_reply(nfs, &cb_data); |
| 1124 | |
| 1125 | return cb_data.status; |
| 1126 | } |
| 1127 | |
| 1128 | void mount_getexports_cb(struct rpc_context *mount_context, int status, void *data, void *private_data) |
| 1129 | { |
| 1130 | struct sync_cb_data *cb_data = private_data; |
| 1131 | exports export = *(exports *)data; |
| 1132 | |
| 1133 | cb_data->is_finished = 1; |
| 1134 | cb_data->status = status; |
| 1135 | cb_data->return_data = NULL; |
| 1136 | |
| 1137 | if (status != 0) { |
| 1138 | rpc_set_error(mount_context, "mount/export call failed with \"%s\"", (char *)data); |
| 1139 | return; |
| 1140 | } |
| 1141 | |
| 1142 | while (export != NULL) { |
| 1143 | exports new_export; |
| 1144 | |
| 1145 | new_export = malloc(sizeof(*new_export)); |
| 1146 | memset(new_export, 0, sizeof(*new_export)); |
| 1147 | new_export->ex_dir = strdup(export->ex_dir); |
| 1148 | new_export->ex_next = cb_data->return_data; |
| 1149 | |
| 1150 | cb_data->return_data = new_export; |
| 1151 | |
| 1152 | export = export->ex_next; |
| 1153 | } |
| 1154 | } |
| 1155 | |
| 1156 | struct exportnode *mount_getexports(const char *server) |
| 1157 | { |
| 1158 | struct sync_cb_data cb_data; |
| 1159 | struct rpc_context *rpc; |
| 1160 | |
| 1161 | |
| 1162 | cb_data.is_finished = 0; |
| 1163 | cb_data.return_data = NULL; |
| 1164 | |
| 1165 | rpc = rpc_init_context(); |
| 1166 | if (mount_getexports_async(rpc, server, mount_getexports_cb, &cb_data) != 0) { |
| 1167 | rpc_destroy_context(rpc); |
| 1168 | return NULL; |
| 1169 | } |
| 1170 | |
| 1171 | wait_for_reply(rpc, &cb_data); |
| 1172 | rpc_destroy_context(rpc); |
| 1173 | |
| 1174 | return cb_data.return_data; |
| 1175 | } |
| 1176 | |
| 1177 | void mount_free_export_list(struct exportnode *exports) |
| 1178 | { |
| 1179 | struct exportnode *tmp; |
| 1180 | |
| 1181 | while ((tmp = exports)) { |
| 1182 | exports = exports->ex_next; |
| 1183 | free(tmp->ex_dir); |
| 1184 | free(tmp); |
| 1185 | } |
| 1186 | } |
| 1187 | |
| 1188 | |
| 1189 | |
| 1190 | #if !defined(WIN32) |
| 1191 | void free_nfs_srvr_list(struct nfs_server_list *srv) |
| 1192 | { |
| 1193 | while (srv != NULL) { |
| 1194 | struct nfs_server_list *next = srv->next; |
| 1195 | |
| 1196 | free(srv->addr); |
| 1197 | free(srv); |
| 1198 | srv = next; |
| 1199 | } |
| 1200 | } |
| 1201 | |
| 1202 | struct nfs_list_data { |
| 1203 | int status; |
| 1204 | struct nfs_server_list *srvrs; |
| 1205 | }; |
| 1206 | |
| 1207 | void callit_cb(struct rpc_context *rpc, int status, void *data _U_, void *private_data) |
| 1208 | { |
| 1209 | struct nfs_list_data *srv_data = private_data; |
| 1210 | struct sockaddr *sin; |
| 1211 | char hostdd[16]; |
| 1212 | struct nfs_server_list *srvr; |
| 1213 | |
| 1214 | if (status == RPC_STATUS_CANCEL) { |
| 1215 | return; |
| 1216 | } |
| 1217 | if (status != 0) { |
| 1218 | srv_data->status = -1; |
| 1219 | return; |
| 1220 | } |
| 1221 | |
| 1222 | sin = rpc_get_recv_sockaddr(rpc); |
| 1223 | if (sin == NULL) { |
| 1224 | rpc_set_error(rpc, "failed to get sockaddr in CALLIT callback"); |
| 1225 | srv_data->status = -1; |
| 1226 | return; |
| 1227 | } |
| 1228 | |
| 1229 | if (getnameinfo(sin, sizeof(struct sockaddr_in), &hostdd[0], sizeof(hostdd), NULL, 0, NI_NUMERICHOST) < 0) { |
| 1230 | rpc_set_error(rpc, "getnameinfo failed in CALLIT callback"); |
| 1231 | srv_data->status = -1; |
| 1232 | return; |
| 1233 | } |
| 1234 | |
| 1235 | /* check for dupes */ |
| 1236 | for (srvr = srv_data->srvrs; srvr; srvr = srvr->next) { |
| 1237 | if (!strcmp(hostdd, srvr->addr)) { |
| 1238 | return; |
| 1239 | } |
| 1240 | } |
| 1241 | |
| 1242 | srvr = malloc(sizeof(struct nfs_server_list)); |
| 1243 | if (srvr == NULL) { |
| 1244 | rpc_set_error(rpc, "Malloc failed when allocating server structure"); |
| 1245 | srv_data->status = -1; |
| 1246 | return; |
| 1247 | } |
| 1248 | |
| 1249 | srvr->addr = strdup(hostdd); |
| 1250 | if (srvr->addr == NULL) { |
| 1251 | rpc_set_error(rpc, "Strdup failed when allocating server structure"); |
| 1252 | free(srvr); |
| 1253 | srv_data->status = -1; |
| 1254 | return; |
| 1255 | } |
| 1256 | |
| 1257 | srvr->next = srv_data->srvrs; |
| 1258 | srv_data->srvrs = srvr; |
| 1259 | } |
| 1260 | |
| 1261 | static int send_nfsd_probes(struct rpc_context *rpc, struct ifconf *ifc, struct nfs_list_data *data) |
| 1262 | { |
| 1263 | char *ptr; |
| 1264 | |
| 1265 | for (ptr =(char *)(ifc->ifc_buf); ptr < (char *)(ifc->ifc_buf) + ifc->ifc_len; ) { |
| 1266 | struct ifreq *ifr; |
| 1267 | char bcdd[16]; |
| 1268 | |
| 1269 | ifr = (struct ifreq *)ptr; |
| 1270 | #ifdef HAVE_SOCKADDR_LEN |
| 1271 | if (ifr->ifr_addr.sa_len > sizeof(struct sockaddr)) { |
| 1272 | ptr += sizeof(ifr->ifr_name) + ifr->ifr_addr.sa_len; |
| 1273 | } else { |
| 1274 | ptr += sizeof(ifr->ifr_name) + sizeof(struct sockaddr); |
| 1275 | } |
| 1276 | #else |
| 1277 | ptr += sizeof(struct ifreq); |
| 1278 | #endif |
| 1279 | |
| 1280 | if (ifr->ifr_addr.sa_family != AF_INET) { |
| 1281 | continue; |
| 1282 | } |
| 1283 | if (ioctl(rpc_get_fd(rpc), SIOCGIFFLAGS, ifr) < 0) { |
| 1284 | return -1; |
| 1285 | } |
| 1286 | if (!(ifr->ifr_flags & IFF_UP)) { |
| 1287 | continue; |
| 1288 | } |
| 1289 | if (ifr->ifr_flags & IFF_LOOPBACK) { |
| 1290 | continue; |
| 1291 | } |
| 1292 | if (!(ifr->ifr_flags & IFF_BROADCAST)) { |
| 1293 | continue; |
| 1294 | } |
| 1295 | if (ioctl(rpc_get_fd(rpc), SIOCGIFBRDADDR, ifr) < 0) { |
| 1296 | continue; |
| 1297 | } |
| 1298 | if (getnameinfo(&ifr->ifr_broadaddr, sizeof(struct sockaddr_in), &bcdd[0], sizeof(bcdd), NULL, 0, NI_NUMERICHOST) < 0) { |
| 1299 | continue; |
| 1300 | } |
| 1301 | if (rpc_set_udp_destination(rpc, bcdd, 111, 1) < 0) { |
| 1302 | return -1; |
| 1303 | } |
| 1304 | |
| 1305 | if (rpc_pmap_callit_async(rpc, MOUNT_PROGRAM, 2, 0, NULL, 0, callit_cb, data) < 0) { |
| 1306 | return -1; |
| 1307 | } |
| 1308 | } |
| 1309 | |
| 1310 | return 0; |
| 1311 | } |
| 1312 | |
| 1313 | struct nfs_server_list *nfs_find_local_servers(void) |
| 1314 | { |
| 1315 | struct rpc_context *rpc; |
| 1316 | struct nfs_list_data data = {0, NULL}; |
| 1317 | struct timeval tv_start, tv_current; |
| 1318 | struct ifconf ifc; |
| 1319 | int size, loop; |
| 1320 | struct pollfd pfd; |
| 1321 | |
| 1322 | rpc = rpc_init_udp_context(); |
| 1323 | if (rpc == NULL) { |
| 1324 | return NULL; |
| 1325 | } |
| 1326 | |
| 1327 | if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0) { |
| 1328 | rpc_destroy_context(rpc); |
| 1329 | return NULL; |
| 1330 | } |
| 1331 | |
| 1332 | |
| 1333 | /* get list of all interfaces */ |
| 1334 | size = sizeof(struct ifreq); |
| 1335 | ifc.ifc_buf = NULL; |
| 1336 | ifc.ifc_len = size; |
| 1337 | |
| 1338 | while(ifc.ifc_len > (size - sizeof(struct ifreq))) { |
| 1339 | size *= 2; |
| 1340 | |
| 1341 | free(ifc.ifc_buf); |
| 1342 | ifc.ifc_len = size; |
| 1343 | ifc.ifc_buf = malloc(size); |
| 1344 | memset(ifc.ifc_buf, 0, size); |
| 1345 | if (ioctl(rpc_get_fd(rpc), SIOCGIFCONF, (caddr_t)&ifc) < 0) { |
| 1346 | rpc_destroy_context(rpc); |
| 1347 | free(ifc.ifc_buf); |
| 1348 | return NULL; |
| 1349 | } |
| 1350 | } |
| 1351 | |
| 1352 | for (loop=0; loop<3; loop++) { |
| 1353 | if (send_nfsd_probes(rpc, &ifc, &data) != 0) { |
| 1354 | rpc_destroy_context(rpc); |
| 1355 | free(ifc.ifc_buf); |
| 1356 | return NULL; |
| 1357 | } |
| 1358 | |
| 1359 | gettimeofday(&tv_start, NULL); |
| 1360 | for(;;) { |
| 1361 | int mpt; |
| 1362 | |
| 1363 | pfd.fd = rpc_get_fd(rpc); |
| 1364 | pfd.events = rpc_which_events(rpc); |
| 1365 | |
| 1366 | gettimeofday(&tv_current, NULL); |
| 1367 | mpt = 1000 |
| 1368 | - (tv_current.tv_sec *1000 + tv_current.tv_usec / 1000) |
| 1369 | + (tv_start.tv_sec *1000 + tv_start.tv_usec / 1000); |
| 1370 | |
| 1371 | if (poll(&pfd, 1, mpt) < 0) { |
| 1372 | free_nfs_srvr_list(data.srvrs); |
| 1373 | rpc_destroy_context(rpc); |
| 1374 | return NULL; |
| 1375 | } |
| 1376 | if (pfd.revents == 0) { |
| 1377 | break; |
| 1378 | } |
| 1379 | |
| 1380 | if (rpc_service(rpc, pfd.revents) < 0) { |
| 1381 | break; |
| 1382 | } |
| 1383 | } |
| 1384 | } |
| 1385 | |
| 1386 | free(ifc.ifc_buf); |
| 1387 | rpc_destroy_context(rpc); |
| 1388 | |
| 1389 | if (data.status != 0) { |
| 1390 | free_nfs_srvr_list(data.srvrs); |
| 1391 | return NULL; |
| 1392 | } |
| 1393 | |
| 1394 | return data.srvrs; |
| 1395 | } |
| 1396 | #endif |