lib/libshare/libshare.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright (c) 2011 Gunnar Beutner
  25  */
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <errno.h>
  30 #include <strings.h>
  31 #include <libintl.h>
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34 #include <unistd.h>
  35 #include <libzfs.h>
  36 #include <libshare.h>
  37 #include "libshare_impl.h"
  38 #include "nfs.h"
  39
  40 static sa_share_impl_t find_share(sa_handle_impl_t handle,
  41     const char *sharepath);
  42 static sa_share_impl_t alloc_share(const char *sharepath);
  43 static void free_share(sa_share_impl_t share);
  44
  45 static void parse_sharetab(sa_handle_impl_t impl_handle);
  46 static int process_share(sa_handle_impl_t impl_handle,
  47     sa_share_impl_t impl_share, char *pathname, char *resource,
  48     char *fstype, char *options, char *description,
  49     char *dataset, boolean_t from_sharetab);
  50 static void update_sharetab(sa_handle_impl_t impl_handle);
  51
  52 static int update_zfs_share(sa_share_impl_t impl_handle, const char *proto);
  53 static int update_zfs_shares(sa_handle_impl_t impl_handle, const char *proto);
  54
  55 static int fstypes_count;
  56 static sa_fstype_t *fstypes;
  57
  58 sa_fstype_t *
  59 register_fstype(const char *name, const sa_share_ops_t *ops)
  60 {
  61         sa_fstype_t *fstype;
  62
  63         fstype = calloc(sizeof (sa_fstype_t), 1);
  64
  65         if (fstype == NULL)
  66                 return NULL;
  67
  68         fstype->name = name;
  69         fstype->ops = ops;
  70         fstype->fsinfo_index = fstypes_count;
  71
  72         fstypes_count++;
  73
  74         fstype->next = fstypes;
  75         fstypes = fstype;
  76
  77         return fstype;
  78 }
  79
  80 sa_handle_t
  81 sa_init(int init_service)
  82 {
  83         sa_handle_impl_t impl_handle;
  84
  85         impl_handle = calloc(sizeof (struct sa_handle_impl), 1);
  86
  87         if (impl_handle == NULL)
  88                 return NULL;
  89
  90         impl_handle->zfs_libhandle = libzfs_init();
  91
  92         if (impl_handle->zfs_libhandle != NULL) {
  93                 libzfs_print_on_error(impl_handle->zfs_libhandle, B_TRUE);
  94         }
  95
  96         parse_sharetab(impl_handle);
  97         update_zfs_shares(impl_handle, NULL);
  98
  99         return ((sa_handle_t)impl_handle);
 100 }
 101
 102 __attribute__((constructor)) static void
 103 libshare_init(void)
 104 {
 105         libshare_nfs_init();
 106
 107         /*
 108          * This bit causes /etc/dfs/sharetab to be updated before libzfs gets a
 109          * chance to read that file; this is necessary because the sharetab file
 110          * might be out of sync with the NFS kernel exports (e.g. due to reboots
 111          * or users manually removing shares)
 112          */
 113         sa_fini(sa_init(0));
 114 }
 115
 116 static void
 117 parse_sharetab(sa_handle_impl_t impl_handle) {
 118         FILE *fp;
 119         char line[512];
 120         char *eol, *pathname, *resource, *fstype, *options, *description;
 121
 122         fp = fopen("/etc/dfs/sharetab", "r");
 123
 124         if (fp == NULL)
 125                 return;
 126
 127         while (fgets(line, sizeof (line), fp) != NULL) {
 128                 eol = line + strlen(line) - 1;
 129
 130                 while (eol >= line) {
 131                         if (*eol != '\r' && *eol != '\n')
 132                                 break;
 133
 134                         *eol = '\0';
 135                         eol--;
 136                 }
 137
 138                 pathname = line;
 139
 140                 if ((resource = strchr(pathname, '\t')) == NULL)
 141                         continue;
 142
 143                 *resource = '\0';
 144                 resource++;
 145
 146                 if ((fstype = strchr(resource, '\t')) == NULL)
 147                         continue;
 148
 149                 *fstype = '\0';
 150                 fstype++;
 151
 152                 if ((options = strchr(fstype, '\t')) == NULL)
 153                         continue;
 154
 155                 *options = '\0';
 156                 options++;
 157
 158                 if ((description = strchr(fstype, '\t')) != NULL) {
 159                         *description = '\0';
 160                         description++;
 161                 }
 162
 163                 if (strcmp(resource, "-") == 0)
 164                         resource = NULL;
 165
 166                 (void) process_share(impl_handle, NULL, pathname, resource,
 167                     fstype, options, description, NULL, B_TRUE);
 168         }
 169
 170         fclose(fp);
 171 }
 172
 173 static void
 174 update_sharetab(sa_handle_impl_t impl_handle)
 175 {
 176         sa_share_impl_t impl_share;
 177         int temp_fd;
 178         FILE *temp_fp;
 179         char tempfile[] = "/etc/dfs/sharetab.XXXXXX";
 180         sa_fstype_t *fstype;
 181         const char *resource;
 182
 183         if (mkdir("/etc/dfs", 0755) < 0 && errno != EEXIST) {
 184                 return;
 185         }
 186
 187         temp_fd = mkstemp(tempfile);
 188
 189         if (temp_fd < 0)
 190                 return;
 191
 192         temp_fp = fdopen(temp_fd, "w");
 193
 194         if (temp_fp == NULL)
 195                 return;
 196
 197         impl_share = impl_handle->shares;
 198         while (impl_share != NULL) {
 199                 fstype = fstypes;
 200                 while (fstype != NULL) {
 201                         if (FSINFO(impl_share, fstype)->active &&
 202                             FSINFO(impl_share, fstype)->shareopts != NULL) {
 203                                 resource = FSINFO(impl_share, fstype)->resource;
 204
 205                                 if (resource == NULL)
 206                                         resource = "-";
 207
 208                                 fprintf(temp_fp, "%s\t%s\t%s\t%s\n",
 209                                     impl_share->sharepath, resource,
 210                                     fstype->name,
 211                                     FSINFO(impl_share, fstype)->shareopts);
 212                         }
 213
 214                         fstype = fstype->next;
 215                 }
 216
 217                 impl_share = impl_share->next;
 218         }
 219
 220         fflush(temp_fp);
 221         fsync(temp_fd);
 222         fclose(temp_fp);
 223
 224         rename(tempfile, "/etc/dfs/sharetab");
 225 }
 226
 227 typedef struct update_cookie_s {
 228         sa_handle_impl_t handle;
 229         const char *proto;
 230 } update_cookie_t;
 231
 232 static int
 233 update_zfs_shares_cb(zfs_handle_t *zhp, void *pcookie)
 234 {
 235         update_cookie_t *udata = (update_cookie_t *)pcookie;
 236         char mountpoint[ZFS_MAXPROPLEN];
 237         char shareopts[ZFS_MAXPROPLEN];
 238         char *dataset;
 239         zfs_type_t type = zfs_get_type(zhp);
 240
 241         if (type == ZFS_TYPE_FILESYSTEM &&
 242             zfs_iter_filesystems(zhp, update_zfs_shares_cb, pcookie) != 0) {
 243                 zfs_close(zhp);
 244                 return 1;
 245         }
 246
 247         if (type != ZFS_TYPE_FILESYSTEM) {
 248                 zfs_close(zhp);
 249                 return 0;
 250         }
 251
 252         if (zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint,
 253             sizeof (mountpoint), NULL, NULL, 0, B_FALSE) != 0) {
 254                 zfs_close(zhp);
 255                 return 0;
 256         }
 257
 258         dataset = (char *)zfs_get_name(zhp);
 259
 260         if (dataset == NULL) {
 261                 zfs_close(zhp);
 262                 return 0;
 263         }
 264
 265         if (!zfs_is_mounted(zhp, NULL)) {
 266                 zfs_close(zhp);
 267                 return 0;
 268         }
 269
 270         if ((udata->proto == NULL || strcmp(udata->proto, "nfs") == 0) &&
 271             zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts,
 272             sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0 &&
 273             strcmp(shareopts, "off") != 0) {
 274                 (void) process_share(udata->handle, NULL, mountpoint, NULL,
 275                     "nfs", shareopts, NULL, dataset, B_FALSE);
 276         }
 277
 278         if ((udata->proto == NULL || strcmp(udata->proto, "smb") == 0) &&
 279             zfs_prop_get(zhp, ZFS_PROP_SHARESMB, shareopts,
 280             sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0 &&
 281             strcmp(shareopts, "off") != 0) {
 282                 (void) process_share(udata->handle, NULL, mountpoint, NULL,
 283                     "smb", shareopts, NULL, dataset, B_FALSE);
 284         }
 285
 286         zfs_close(zhp);
 287
 288         return 0;
 289 }
 290
 291 static int
 292 update_zfs_share(sa_share_impl_t impl_share, const char *proto)
 293 {
 294         sa_handle_impl_t impl_handle = impl_share->handle;
 295         zfs_handle_t *zhp;
 296         update_cookie_t udata;
 297
 298         if (impl_handle->zfs_libhandle == NULL)
 299                         return SA_SYSTEM_ERR;
 300
 301         assert(impl_share->dataset != NULL);
 302
 303         zhp = zfs_open(impl_share->handle->zfs_libhandle, impl_share->dataset,
 304             ZFS_TYPE_FILESYSTEM);
 305
 306         if (zhp == NULL)
 307                 return SA_SYSTEM_ERR;
 308
 309         udata.handle = impl_handle;
 310         udata.proto = proto;
 311         (void) update_zfs_shares_cb(zhp, &udata);
 312
 313         return SA_OK;
 314 }
 315
 316 static int
 317 update_zfs_shares(sa_handle_impl_t impl_handle, const char *proto)
 318 {
 319         update_cookie_t udata;
 320
 321         if (impl_handle->zfs_libhandle == NULL)
 322                 return SA_SYSTEM_ERR;
 323
 324         udata.handle = impl_handle;
 325         udata.proto = proto;
 326         (void) zfs_iter_root(impl_handle->zfs_libhandle, update_zfs_shares_cb,
 327             &udata);
 328
 329         return SA_OK;
 330 }
 331
 332 static int
 333 process_share(sa_handle_impl_t impl_handle, sa_share_impl_t impl_share,
 334     char *pathname, char *resource, char *proto,
 335     char *options, char *description, char *dataset,
 336     boolean_t from_sharetab)
 337 {
 338         struct stat statbuf;
 339         int rc;
 340         char *resource_dup = NULL, *dataset_dup = NULL;
 341         boolean_t new_share;
 342         sa_fstype_t *fstype;
 343
 344         new_share = B_FALSE;
 345
 346         if (impl_share == NULL)
 347                 impl_share = find_share(impl_handle, pathname);
 348
 349         if (impl_share == NULL) {
 350                 if (lstat(pathname, &statbuf) != 0 ||
 351                     !S_ISDIR(statbuf.st_mode))
 352                         return SA_BAD_PATH;
 353
 354                 impl_share = alloc_share(pathname);
 355
 356                 if (impl_share == NULL) {
 357                         rc = SA_NO_MEMORY;
 358                         goto err;
 359                 }
 360
 361                 new_share = B_TRUE;
 362         }
 363
 364         if (dataset != NULL) {
 365                 dataset_dup = strdup(dataset);
 366
 367                 if (dataset_dup == NULL) {
 368                         rc = SA_NO_MEMORY;
 369                         goto err;
 370                 }
 371         }
 372
 373         free(impl_share->dataset);
 374         impl_share->dataset = dataset_dup;
 375
 376         rc = SA_INVALID_PROTOCOL;
 377
 378         fstype = fstypes;
 379         while (fstype != NULL) {
 380                 if (strcmp(fstype->name, proto) == 0) {
 381                         if (resource != NULL) {
 382                                 resource_dup = strdup(resource);
 383
 384                                 if (resource_dup == NULL) {
 385                                         rc = SA_NO_MEMORY;
 386                                         goto err;
 387                                 }
 388                         }
 389
 390                         free(FSINFO(impl_share, fstype)->resource);
 391                         FSINFO(impl_share, fstype)->resource = resource_dup;
 392
 393                         rc = fstype->ops->update_shareopts(impl_share,
 394                             resource, options);
 395
 396                         if (rc == SA_OK && from_sharetab)
 397                                 FSINFO(impl_share, fstype)->active = B_TRUE;
 398
 399                         break;
 400                 }
 401
 402                 fstype = fstype->next;
 403         }
 404
 405         if (rc != SA_OK)
 406                 goto err;
 407
 408         if (new_share) {
 409                 impl_share->handle = impl_handle;
 410
 411                 impl_share->next = impl_handle->shares;
 412                 impl_handle->shares = impl_share;
 413
 414         }
 415
 416 err:
 417         if (rc != SA_OK) {
 418                 if (new_share)
 419                         free_share(impl_share);
 420         }
 421
 422         return rc;
 423 }
 424
 425 void
 426 sa_fini(sa_handle_t handle)
 427 {
 428         sa_handle_impl_t impl_handle = (sa_handle_impl_t)handle;
 429         sa_share_impl_t impl_share, next;
 430         sa_share_impl_t *pcurr;
 431
 432         if (impl_handle == NULL)
 433                 return;
 434
 435         /*
 436          * clean up shares which don't have a non-NULL dataset property,
 437          * which means they're in sharetab but we couldn't find their
 438          * ZFS dataset.
 439          */
 440         pcurr = &(impl_handle->shares);
 441         impl_share = *pcurr;
 442         while (impl_share != NULL) {
 443                 next = impl_share->next;
 444
 445                 if (impl_share->dataset == NULL) {
 446                         /* remove item from the linked list */
 447                         *pcurr = next;
 448
 449                         sa_disable_share(impl_share, NULL);
 450
 451                         free_share(impl_share);
 452                 } else {
 453                         pcurr = &(impl_share->next);
 454                 }
 455
 456                 impl_share = next;
 457         }
 458
 459         update_sharetab(impl_handle);
 460
 461         if (impl_handle->zfs_libhandle != NULL)
 462                 libzfs_fini(impl_handle->zfs_libhandle);
 463
 464         impl_share = impl_handle->shares;
 465         while (impl_share != NULL) {
 466                 next = impl_share->next;
 467                 free_share(impl_share);
 468                 impl_share = next;
 469         }
 470
 471         free(impl_handle);
 472 }
 473
 474 static sa_share_impl_t
 475 find_share(sa_handle_impl_t impl_handle, const char *sharepath)
 476 {
 477         sa_share_impl_t impl_share;
 478
 479         impl_share = impl_handle->shares;
 480         while (impl_share != NULL) {
 481                 if (strcmp(impl_share->sharepath, sharepath) == 0) {
 482                         break;
 483                 }
 484
 485                 impl_share = impl_share->next;
 486         }
 487
 488         return impl_share;
 489 }
 490
 491 sa_share_t
 492 sa_find_share(sa_handle_t handle, char *sharepath)
 493 {
 494         return (sa_share_t)find_share((sa_handle_impl_t)handle, sharepath);
 495 }
 496
 497 int
 498 sa_enable_share(sa_share_t share, char *protocol)
 499 {
 500         sa_share_impl_t impl_share = (sa_share_impl_t)share;
 501         int rc, ret;
 502         boolean_t found_protocol;
 503         sa_fstype_t *fstype;
 504
 505 #ifdef DEBUG
 506         fprintf(stderr, "sa_enable_share: share->sharepath=%s, protocol=%s\n",
 507                 impl_share->sharepath, protocol);
 508 #endif
 509
 510         assert(impl_share->handle != NULL);
 511
 512         ret = SA_OK;
 513         found_protocol = B_FALSE;
 514
 515         fstype = fstypes;
 516         while (fstype != NULL) {
 517                 if (protocol == NULL || strcmp(fstype->name, protocol) == 0) {
 518                         update_zfs_share(impl_share, fstype->name);
 519
 520                         rc = fstype->ops->enable_share(impl_share);
 521
 522                         if (rc != SA_OK)
 523                                 ret = rc;
 524                         else
 525                                 FSINFO(impl_share, fstype)->active = B_TRUE;
 526
 527                         found_protocol = B_TRUE;
 528                 }
 529
 530                 fstype = fstype->next;
 531         }
 532
 533         update_sharetab(impl_share->handle);
 534
 535         return (found_protocol ? ret : SA_INVALID_PROTOCOL);
 536 }
 537
 538 int
 539 sa_disable_share(sa_share_t share, char *protocol)
 540 {
 541         sa_share_impl_t impl_share = (sa_share_impl_t)share;
 542         int rc, ret;
 543         boolean_t found_protocol;
 544         sa_fstype_t *fstype;
 545
 546 #ifdef DEBUG
 547         fprintf(stderr, "sa_disable_share: share->sharepath=%s, protocol=%s\n",
 548                 impl_share->sharepath, protocol);
 549 #endif
 550
 551         ret = SA_OK;
 552         found_protocol = B_FALSE;
 553
 554         fstype = fstypes;
 555         while (fstype != NULL) {
 556                 if (protocol == NULL || strcmp(fstype->name, protocol) == 0) {
 557                         rc = fstype->ops->disable_share(impl_share);
 558
 559                         if (rc == SA_OK) {
 560                                 fstype->ops->clear_shareopts(impl_share);
 561
 562                                 FSINFO(impl_share, fstype)->active = B_FALSE;
 563                         } else
 564                                 ret = rc;
 565
 566                         found_protocol = B_TRUE;
 567                 }
 568
 569                 fstype = fstype->next;
 570         }
 571
 572         update_sharetab(impl_share->handle);
 573
 574         return (found_protocol ? ret : SA_INVALID_PROTOCOL);
 575 }
 576
 577 /*
 578  * sa_errorstr(err)
 579  *
 580  * convert an error value to an error string
 581  */
 582 char *
 583 sa_errorstr(int err)
 584 {
 585         static char errstr[32];
 586         char *ret = NULL;
 587
 588         switch (err) {
 589         case SA_OK:
 590                 ret = dgettext(TEXT_DOMAIN, "ok");
 591                 break;
 592         case SA_NO_SUCH_PATH:
 593                 ret = dgettext(TEXT_DOMAIN, "path doesn't exist");
 594                 break;
 595         case SA_NO_MEMORY:
 596                 ret = dgettext(TEXT_DOMAIN, "no memory");
 597                 break;
 598         case SA_DUPLICATE_NAME:
 599                 ret = dgettext(TEXT_DOMAIN, "name in use");
 600                 break;
 601         case SA_BAD_PATH:
 602                 ret = dgettext(TEXT_DOMAIN, "bad path");
 603                 break;
 604         case SA_NO_SUCH_GROUP:
 605                 ret = dgettext(TEXT_DOMAIN, "no such group");
 606                 break;
 607         case SA_CONFIG_ERR:
 608                 ret = dgettext(TEXT_DOMAIN, "configuration error");
 609                 break;
 610         case SA_SYSTEM_ERR:
 611                 ret = dgettext(TEXT_DOMAIN, "system error");
 612                 break;
 613         case SA_SYNTAX_ERR:
 614                 ret = dgettext(TEXT_DOMAIN, "syntax error");
 615                 break;
 616         case SA_NO_PERMISSION:
 617                 ret = dgettext(TEXT_DOMAIN, "no permission");
 618                 break;
 619         case SA_BUSY:
 620                 ret = dgettext(TEXT_DOMAIN, "busy");
 621                 break;
 622         case SA_NO_SUCH_PROP:
 623                 ret = dgettext(TEXT_DOMAIN, "no such property");
 624                 break;
 625         case SA_INVALID_NAME:
 626                 ret = dgettext(TEXT_DOMAIN, "invalid name");
 627                 break;
 628         case SA_INVALID_PROTOCOL:
 629                 ret = dgettext(TEXT_DOMAIN, "invalid protocol");
 630                 break;
 631         case SA_NOT_ALLOWED:
 632                 ret = dgettext(TEXT_DOMAIN, "operation not allowed");
 633                 break;
 634         case SA_BAD_VALUE:
 635                 ret = dgettext(TEXT_DOMAIN, "bad property value");
 636                 break;
 637         case SA_INVALID_SECURITY:
 638                 ret = dgettext(TEXT_DOMAIN, "invalid security type");
 639                 break;
 640         case SA_NO_SUCH_SECURITY:
 641                 ret = dgettext(TEXT_DOMAIN, "security type not found");
 642                 break;
 643         case SA_VALUE_CONFLICT:
 644                 ret = dgettext(TEXT_DOMAIN, "property value conflict");
 645                 break;
 646         case SA_NOT_IMPLEMENTED:
 647                 ret = dgettext(TEXT_DOMAIN, "not implemented");
 648                 break;
 649         case SA_INVALID_PATH:
 650                 ret = dgettext(TEXT_DOMAIN, "invalid path");
 651                 break;
 652         case SA_NOT_SUPPORTED:
 653                 ret = dgettext(TEXT_DOMAIN, "operation not supported");
 654                 break;
 655         case SA_PROP_SHARE_ONLY:
 656                 ret = dgettext(TEXT_DOMAIN, "property not valid for group");
 657                 break;
 658         case SA_NOT_SHARED:
 659                 ret = dgettext(TEXT_DOMAIN, "not shared");
 660                 break;
 661         case SA_NO_SUCH_RESOURCE:
 662                 ret = dgettext(TEXT_DOMAIN, "no such resource");
 663                 break;
 664         case SA_RESOURCE_REQUIRED:
 665                 ret = dgettext(TEXT_DOMAIN, "resource name required");
 666                 break;
 667         case SA_MULTIPLE_ERROR:
 668                 ret = dgettext(TEXT_DOMAIN, "errors from multiple protocols");
 669                 break;
 670         case SA_PATH_IS_SUBDIR:
 671                 ret = dgettext(TEXT_DOMAIN, "path is a subpath of share");
 672                 break;
 673         case SA_PATH_IS_PARENTDIR:
 674                 ret = dgettext(TEXT_DOMAIN, "path is parent of a share");
 675                 break;
 676         case SA_NO_SECTION:
 677                 ret = dgettext(TEXT_DOMAIN, "protocol requires a section");
 678                 break;
 679         case SA_NO_PROPERTIES:
 680                 ret = dgettext(TEXT_DOMAIN, "properties not found");
 681                 break;
 682         case SA_NO_SUCH_SECTION:
 683                 ret = dgettext(TEXT_DOMAIN, "section not found");
 684                 break;
 685         case SA_PASSWORD_ENC:
 686                 ret = dgettext(TEXT_DOMAIN, "passwords must be encrypted");
 687                 break;
 688         case SA_SHARE_EXISTS:
 689                 ret = dgettext(TEXT_DOMAIN, "path or file is already shared");
 690                 break;
 691         default:
 692                 (void) snprintf(errstr, sizeof (errstr),
 693                     dgettext(TEXT_DOMAIN, "unknown %d"), err);
 694                 ret = errstr;
 695         }
 696         return (ret);
 697 }
 698
 699 int
 700 sa_parse_legacy_options(sa_group_t group, char *options, char *proto)
 701 {
 702         sa_fstype_t *fstype;
 703
 704 #ifdef DEBUG
 705         fprintf(stderr, "sa_parse_legacy_options: options=%s, proto=%s\n",
 706                 options, proto);
 707 #endif
 708
 709         fstype = fstypes;
 710         while (fstype != NULL) {
 711                 if (strcmp(fstype->name, proto) != 0) {
 712                         fstype = fstype->next;
 713                         continue;
 714                 }
 715
 716                 return fstype->ops->validate_shareopts(options);
 717         }
 718
 719         return SA_INVALID_PROTOCOL;
 720 }
 721
 722 boolean_t
 723 sa_needs_refresh(sa_handle_t handle)
 724 {
 725         return B_TRUE;
 726 }
 727
 728 libzfs_handle_t *
 729 sa_get_zfs_handle(sa_handle_t handle)
 730 {
 731         sa_handle_impl_t impl_handle = (sa_handle_impl_t)handle;
 732
 733         if (impl_handle == NULL)
 734                 return NULL;
 735
 736         return impl_handle->zfs_libhandle;
 737 }
 738
 739 static sa_share_impl_t
 740 alloc_share(const char *sharepath)
 741 {
 742         sa_share_impl_t impl_share;
 743
 744         impl_share = calloc(sizeof (struct sa_share_impl), 1);
 745
 746         if (impl_share == NULL)
 747                 return NULL;
 748
 749         impl_share->sharepath = strdup(sharepath);
 750
 751         if (impl_share->sharepath == NULL) {
 752                 free(impl_share);
 753                 return NULL;
 754         }
 755
 756         impl_share->fsinfo = calloc(sizeof (sa_share_fsinfo_t), fstypes_count);
 757
 758         if (impl_share->fsinfo == NULL) {
 759                 free(impl_share->sharepath);
 760                 free(impl_share);
 761                 return NULL;
 762         }
 763
 764         return impl_share;
 765 }
 766
 767 static void
 768 free_share(sa_share_impl_t impl_share) {
 769         sa_fstype_t *fstype;
 770
 771         fstype = fstypes;
 772         while (fstype != NULL) {
 773                 fstype->ops->clear_shareopts(impl_share);
 774
 775                 free(FSINFO(impl_share, fstype)->resource);
 776
 777                 fstype = fstype->next;
 778         }
 779
 780         free(impl_share->sharepath);
 781         free(impl_share->dataset);
 782         free(impl_share->fsinfo);
 783         free(impl_share);
 784 }
 785
 786 int
 787 sa_zfs_process_share(sa_handle_t handle, sa_group_t group, sa_share_t share,
 788     char *mountpoint, char *proto, zprop_source_t source, char *shareopts,
 789     char *sourcestr, char *dataset)
 790 {
 791         sa_handle_impl_t impl_handle = (sa_handle_impl_t)handle;
 792         sa_share_impl_t impl_share = (sa_share_impl_t)share;
 793
 794 #ifdef DEBUG
 795         fprintf(stderr, "sa_zfs_process_share: mountpoint=%s, proto=%s, "
 796             "shareopts=%s, sourcestr=%s, dataset=%s\n", mountpoint, proto,
 797             shareopts, sourcestr, dataset);
 798 #endif
 799
 800         return process_share(impl_handle, impl_share, mountpoint, NULL,
 801             proto, shareopts, NULL, dataset, B_FALSE);
 802 }
 803
 804 void
 805 sa_update_sharetab_ts(sa_handle_t handle)
 806 {
 807         sa_handle_impl_t impl_handle = (sa_handle_impl_t)handle;
 808
 809         update_sharetab(impl_handle);
 810 }