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 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * SMB specific functions 29 */ 30 #include <stdio.h> 31 #include <string.h> 32 #include <ctype.h> 33 #include <stdlib.h> 34 #include <unistd.h> 35 #include <zone.h> 36 #include <errno.h> 37 #include <locale.h> 38 #include <fcntl.h> 39 #include <sys/types.h> 40 #include <sys/stat.h> 41 #include <syslog.h> 42 #include "libshare.h" 43 #include "libshare_impl.h" 44 #include <pwd.h> 45 #include <limits.h> 46 #include <libscf.h> 47 #include <strings.h> 48 #include "libshare_smb.h" 49 #include <rpcsvc/daemon_utils.h> 50 #include <smbsrv/smb_share.h> 51 #include <smbsrv/smbinfo.h> 52 #include <smbsrv/libsmb.h> 53 #include <libdlpi.h> 54 55 #define SMB_CSC_BUFSZ 64 56 57 /* internal functions */ 58 static int smb_share_init(void); 59 static void smb_share_fini(void); 60 static int smb_enable_share(sa_share_t); 61 static int smb_share_changed(sa_share_t); 62 static int smb_resource_changed(sa_resource_t); 63 static int smb_rename_resource(sa_handle_t, sa_resource_t, char *); 64 static int smb_disable_share(sa_share_t share, char *); 65 static int smb_validate_property(sa_handle_t, sa_property_t, sa_optionset_t); 66 static int smb_set_proto_prop(sa_property_t); 67 static sa_protocol_properties_t smb_get_proto_set(void); 68 static char *smb_get_status(void); 69 static int smb_parse_optstring(sa_group_t, char *); 70 static char *smb_format_options(sa_group_t, int); 71 72 static int smb_enable_service(void); 73 74 static int range_check_validator(int, char *); 75 static int range_check_validator_zero_ok(int, char *); 76 static int string_length_check_validator(int, char *); 77 static int true_false_validator(int, char *); 78 static int ip_address_validator_empty_ok(int, char *); 79 static int path_validator(int, char *); 80 81 static int smb_enable_resource(sa_resource_t); 82 static int smb_disable_resource(sa_resource_t); 83 static uint64_t smb_share_features(void); 84 static int smb_list_transient(sa_handle_t); 85 86 static int smb_build_shareinfo(sa_share_t, sa_resource_t, smb_share_t *); 87 static void smb_csc_option(const char *, smb_share_t *); 88 static char *smb_csc_name(const smb_share_t *); 89 static sa_group_t smb_get_defaultgrp(sa_handle_t); 90 static int interface_validator(int, char *); 91 92 static struct { 93 char *value; 94 uint32_t flag; 95 } cscopt[] = { 96 { "disabled", SMB_SHRF_CSC_DISABLED }, 97 { "manual", SMB_SHRF_CSC_MANUAL }, 98 { "auto", SMB_SHRF_CSC_AUTO }, 99 { "vdo", SMB_SHRF_CSC_VDO } 100 }; 101 102 /* size of basic format allocation */ 103 #define OPT_CHUNK 1024 104 105 /* size of string for types - big enough to hold "dependency" */ 106 #define SCFTYPE_LEN 32 107 108 /* 109 * Indexes of entries in smb_proto_options table. 110 * Changes to smb_proto_options table may require 111 * an update to these values. 112 */ 113 #define PROTO_OPT_WINS1 6 114 #define PROTO_OPT_WINS_EXCLUDE 8 115 116 typedef struct smb_hostifs_walker { 117 const char *hiw_ifname; 118 boolean_t hiw_matchfound; 119 } smb_hostifs_walker_t; 120 121 122 /* 123 * ops vector that provides the protocol specific info and operations 124 * for share management. 125 */ 126 127 struct sa_plugin_ops sa_plugin_ops = { 128 SA_PLUGIN_VERSION, 129 SMB_PROTOCOL_NAME, 130 smb_share_init, 131 smb_share_fini, 132 smb_enable_share, 133 smb_disable_share, 134 smb_validate_property, 135 NULL, /* valid_space */ 136 NULL, /* security_prop */ 137 smb_parse_optstring, 138 smb_format_options, 139 smb_set_proto_prop, 140 smb_get_proto_set, 141 smb_get_status, 142 NULL, /* space_alias */ 143 NULL, /* update_legacy */ 144 NULL, /* delete_legacy */ 145 smb_share_changed, 146 smb_enable_resource, 147 smb_disable_resource, 148 smb_share_features, 149 smb_list_transient, 150 smb_resource_changed, 151 smb_rename_resource, 152 NULL, /* run_command */ 153 NULL, /* command_help */ 154 NULL /* delete_proto_section */ 155 }; 156 157 struct option_defs optdefs[] = { 158 { SHOPT_AD_CONTAINER, OPT_TYPE_STRING }, 159 { SHOPT_NAME, OPT_TYPE_NAME }, 160 { SHOPT_RO, OPT_TYPE_ACCLIST }, 161 { SHOPT_RW, OPT_TYPE_ACCLIST }, 162 { SHOPT_NONE, OPT_TYPE_ACCLIST }, 163 { SHOPT_CSC, OPT_TYPE_CSC }, 164 { NULL, NULL } 165 }; 166 167 /* 168 * findopt(name) 169 * 170 * Lookup option "name" in the option table and return the table 171 * index. 172 */ 173 static int 174 findopt(char *name) 175 { 176 int i; 177 if (name != NULL) { 178 for (i = 0; optdefs[i].tag != NULL; i++) { 179 if (strcmp(optdefs[i].tag, name) == 0) 180 return (i); 181 } 182 } 183 return (-1); 184 } 185 186 /* 187 * is_a_number(number) 188 * 189 * is the string a number in one of the forms we want to use? 190 */ 191 static boolean_t 192 is_a_number(char *number) 193 { 194 boolean_t isnum = B_TRUE; 195 boolean_t ishex = B_FALSE; 196 197 if (number == NULL || *number == '\0') 198 return (B_FALSE); 199 200 if (strncasecmp(number, "0x", 2) == 0) { 201 number += 2; 202 ishex = B_TRUE; 203 } else if (*number == '-') { 204 number++; 205 } 206 207 while (isnum && (*number != '\0')) { 208 isnum = (ishex) ? isxdigit(*number) : isdigit(*number); 209 number++; 210 } 211 212 return (isnum); 213 } 214 215 /* 216 * check ro vs rw values. Over time this may get beefed up. 217 * for now it just does simple checks. 218 */ 219 220 static int 221 check_rorw(char *v1, char *v2) 222 { 223 int ret = SA_OK; 224 if (strcmp(v1, v2) == 0) 225 ret = SA_VALUE_CONFLICT; 226 return (ret); 227 } 228 229 /* 230 * validresource(name) 231 * 232 * Check that name only has valid characters in it. The current valid 233 * set are the printable characters but not including: 234 * " / \ [ ] : | < > + ; , ? * = \t 235 * Note that space is included and there is a maximum length. 236 */ 237 static boolean_t 238 validresource(const char *name) 239 { 240 const char *cp; 241 size_t len; 242 243 if (name == NULL) 244 return (B_FALSE); 245 246 len = strlen(name); 247 if (len == 0 || len > SA_MAX_RESOURCE_NAME) 248 return (B_FALSE); 249 250 if (strpbrk(name, "\"/\\[]:|<>+;,?*=\t") != NULL) { 251 return (B_FALSE); 252 } 253 254 for (cp = name; *cp != '\0'; cp++) 255 if (iscntrl(*cp)) 256 return (B_FALSE); 257 258 return (B_TRUE); 259 } 260 261 /* 262 * Check that the client-side caching (CSC) option value is valid. 263 */ 264 static boolean_t 265 validcsc(const char *value) 266 { 267 int i; 268 269 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 270 if (strcasecmp(value, cscopt[i].value) == 0) 271 return (B_TRUE); 272 } 273 274 return (B_FALSE); 275 } 276 277 /* 278 * smb_isonline() 279 * 280 * Determine if the SMF service instance is in the online state or 281 * not. A number of operations depend on this state. 282 */ 283 static boolean_t 284 smb_isonline(void) 285 { 286 char *str; 287 boolean_t ret = B_FALSE; 288 289 if ((str = smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI)) != NULL) { 290 ret = (strcmp(str, SCF_STATE_STRING_ONLINE) == 0); 291 free(str); 292 } 293 return (ret); 294 } 295 296 /* 297 * smb_isdisabled() 298 * 299 * Determine if the SMF service instance is in the disabled state or 300 * not. A number of operations depend on this state. 301 */ 302 static boolean_t 303 smb_isdisabled(void) 304 { 305 char *str; 306 boolean_t ret = B_FALSE; 307 308 if ((str = smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI)) != NULL) { 309 ret = (strcmp(str, SCF_STATE_STRING_DISABLED) == 0); 310 free(str); 311 } 312 return (ret); 313 } 314 315 /* 316 * smb_isautoenable() 317 * 318 * Determine if the SMF service instance auto_enabled set or not. A 319 * number of operations depend on this state. The property not being 320 * set or being set to true means autoenable. Only being set to false 321 * is not autoenabled. 322 */ 323 static boolean_t 324 smb_isautoenable(void) 325 { 326 boolean_t ret = B_TRUE; 327 scf_simple_prop_t *prop; 328 uint8_t *retstr; 329 330 prop = scf_simple_prop_get(NULL, SMBD_DEFAULT_INSTANCE_FMRI, 331 "application", "auto_enable"); 332 if (prop != NULL) { 333 retstr = scf_simple_prop_next_boolean(prop); 334 ret = *retstr != 0; 335 scf_simple_prop_free(prop); 336 } 337 return (ret); 338 } 339 340 /* 341 * smb_ismaint() 342 * 343 * Determine if the SMF service instance is in the disabled state or 344 * not. A number of operations depend on this state. 345 */ 346 static boolean_t 347 smb_ismaint(void) 348 { 349 char *str; 350 boolean_t ret = B_FALSE; 351 352 if ((str = smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI)) != NULL) { 353 ret = (strcmp(str, SCF_STATE_STRING_MAINT) == 0); 354 free(str); 355 } 356 return (ret); 357 } 358 359 /* 360 * smb_enable_share tells the implementation that it is to enable the share. 361 * This entails converting the path and options into the appropriate ioctl 362 * calls. It is assumed that all error checking of paths, etc. were 363 * done earlier. 364 */ 365 static int 366 smb_enable_share(sa_share_t share) 367 { 368 char *path; 369 smb_share_t si; 370 sa_resource_t resource; 371 boolean_t iszfs; 372 boolean_t privileged; 373 int err = SA_OK; 374 priv_set_t *priv_effective; 375 boolean_t online; 376 377 /* 378 * We only start in the global zone and only run if we aren't 379 * running Trusted Extensions. 380 */ 381 if (getzoneid() != GLOBAL_ZONEID) { 382 (void) printf(dgettext(TEXT_DOMAIN, 383 "SMB: service not supported in local zone\n")); 384 return (SA_NOT_SUPPORTED); 385 } 386 if (is_system_labeled()) { 387 (void) printf(dgettext(TEXT_DOMAIN, 388 "SMB: service not supported with Trusted Extensions\n")); 389 return (SA_NOT_SUPPORTED); 390 } 391 392 priv_effective = priv_allocset(); 393 (void) getppriv(PRIV_EFFECTIVE, priv_effective); 394 privileged = (priv_isfullset(priv_effective) == B_TRUE); 395 priv_freeset(priv_effective); 396 397 /* get the path since it is important in several places */ 398 path = sa_get_share_attr(share, "path"); 399 if (path == NULL) 400 return (SA_NO_SUCH_PATH); 401 402 /* 403 * If administratively disabled, don't try to start anything. 404 */ 405 online = smb_isonline(); 406 if (!online && !smb_isautoenable() && smb_isdisabled()) 407 goto done; 408 409 iszfs = sa_path_is_zfs(path); 410 411 if (iszfs) { 412 413 if (privileged == B_FALSE && !online) { 414 415 if (!online) { 416 (void) printf(dgettext(TEXT_DOMAIN, 417 "SMB: Cannot share remove " 418 "file system: %s\n"), path); 419 (void) printf(dgettext(TEXT_DOMAIN, 420 "SMB: Service needs to be enabled " 421 "by a privileged user\n")); 422 err = SA_NO_PERMISSION; 423 errno = EPERM; 424 } 425 if (err) { 426 sa_free_attr_string(path); 427 return (err); 428 } 429 430 } 431 } 432 433 if (privileged == B_TRUE && !online) { 434 err = smb_enable_service(); 435 if (err != SA_OK) { 436 (void) printf(dgettext(TEXT_DOMAIN, 437 "SMB: Unable to enable service\n")); 438 /* 439 * For now, it is OK to not be able to enable 440 * the service. 441 */ 442 if (err == SA_BUSY || err == SA_SYSTEM_ERR) 443 err = SA_OK; 444 } else { 445 online = B_TRUE; 446 } 447 } 448 449 /* 450 * Don't bother trying to start shares if the service isn't 451 * running. 452 */ 453 if (!online) 454 goto done; 455 456 /* Each share can have multiple resources */ 457 for (resource = sa_get_share_resource(share, NULL); 458 resource != NULL; 459 resource = sa_get_next_resource(resource)) { 460 err = smb_build_shareinfo(share, resource, &si); 461 if (err != SA_OK) { 462 sa_free_attr_string(path); 463 return (err); 464 } 465 466 if (!iszfs) { 467 err = smb_share_create(&si); 468 } else { 469 share_t sh; 470 471 sa_sharetab_fill_zfs(share, &sh, "smb"); 472 err = sa_share_zfs(share, resource, (char *)path, &sh, 473 &si, ZFS_SHARE_SMB); 474 sa_emptyshare(&sh); 475 } 476 } 477 if (!iszfs) 478 (void) sa_update_sharetab(share, "smb"); 479 done: 480 sa_free_attr_string(path); 481 482 return (err == NERR_DuplicateShare ? 0 : err); 483 } 484 485 /* 486 * This is the share for CIFS all shares have resource names. 487 * Enable tells the smb server to update its hash. If it fails 488 * because smb server is down, we just ignore as smb server loads 489 * the resources from sharemanager at startup. 490 */ 491 492 static int 493 smb_enable_resource(sa_resource_t resource) 494 { 495 sa_share_t share; 496 smb_share_t si; 497 int ret = SA_OK; 498 int err; 499 boolean_t isonline; 500 501 share = sa_get_resource_parent(resource); 502 if (share == NULL) 503 return (SA_NO_SUCH_PATH); 504 505 /* 506 * If administratively disabled, don't try to start anything. 507 */ 508 isonline = smb_isonline(); 509 if (!isonline && !smb_isautoenable() && smb_isdisabled()) 510 return (SA_OK); 511 512 if (!isonline) { 513 (void) smb_enable_service(); 514 515 if (!smb_isonline()) 516 return (SA_OK); 517 } 518 519 if ((ret = smb_build_shareinfo(share, resource, &si)) != SA_OK) 520 return (ret); 521 522 /* 523 * Attempt to add the share. Any error that occurs if it was 524 * online is an error but don't count NERR_DuplicateName if 525 * smb/server had to be brought online since bringing the 526 * service up will enable the share that was just added prior 527 * to the attempt to enable. 528 */ 529 err = smb_share_create(&si); 530 if (err == NERR_Success || !(!isonline && err == NERR_DuplicateName)) 531 (void) sa_update_sharetab(share, "smb"); 532 else 533 return (SA_NOT_SHARED); 534 535 return (SA_OK); 536 } 537 538 /* 539 * Remove it from smb server hash. 540 */ 541 static int 542 smb_disable_resource(sa_resource_t resource) 543 { 544 char *rname; 545 uint32_t res; 546 sa_share_t share; 547 548 rname = sa_get_resource_attr(resource, "name"); 549 if (rname == NULL) 550 return (SA_NO_SUCH_RESOURCE); 551 552 if (smb_isonline()) { 553 res = smb_share_delete(rname); 554 if (res != NERR_Success) { 555 sa_free_attr_string(rname); 556 return (SA_CONFIG_ERR); 557 } 558 } 559 560 sa_free_attr_string(rname); 561 562 share = sa_get_resource_parent(resource); 563 if (share != NULL) { 564 rname = sa_get_share_attr(share, "path"); 565 if (rname != NULL) { 566 sa_handle_t handle; 567 568 handle = sa_find_group_handle((sa_group_t)resource); 569 (void) sa_delete_sharetab(handle, rname, "smb"); 570 sa_free_attr_string(rname); 571 } 572 } 573 /* 574 * Always return OK as smb/server may be down and 575 * Shares will be picked up when loaded. 576 */ 577 return (SA_OK); 578 } 579 580 /* 581 * smb_share_changed(sa_share_t share) 582 * 583 * The specified share has changed. 584 */ 585 static int 586 smb_share_changed(sa_share_t share) 587 { 588 char *path; 589 sa_resource_t resource; 590 591 if (!smb_isonline()) 592 return (SA_OK); 593 594 /* get the path since it is important in several places */ 595 path = sa_get_share_attr(share, "path"); 596 if (path == NULL) 597 return (SA_NO_SUCH_PATH); 598 599 for (resource = sa_get_share_resource(share, NULL); 600 resource != NULL; 601 resource = sa_get_next_resource(resource)) 602 (void) smb_resource_changed(resource); 603 604 sa_free_attr_string(path); 605 606 return (SA_OK); 607 } 608 609 /* 610 * smb_resource_changed(sa_resource_t resource) 611 * 612 * The specified resource has changed. 613 */ 614 static int 615 smb_resource_changed(sa_resource_t resource) 616 { 617 uint32_t res; 618 sa_share_t share; 619 smb_share_t si; 620 621 if (!smb_isonline()) 622 return (SA_OK); 623 624 if ((share = sa_get_resource_parent(resource)) == NULL) 625 return (SA_CONFIG_ERR); 626 627 if ((res = smb_build_shareinfo(share, resource, &si)) != SA_OK) 628 return (res); 629 630 res = smb_share_modify(&si); 631 632 if (res != NERR_Success) 633 return (SA_CONFIG_ERR); 634 635 return (smb_enable_service()); 636 } 637 638 /* 639 * smb_disable_share(sa_share_t share, char *path) 640 * 641 * Unshare the specified share. Note that "path" is the same 642 * path as what is in the "share" object. It is passed in to avoid an 643 * additional lookup. A missing "path" value makes this a no-op 644 * function. 645 */ 646 static int 647 smb_disable_share(sa_share_t share, char *path) 648 { 649 char *rname; 650 sa_resource_t resource; 651 sa_group_t parent; 652 boolean_t iszfs; 653 int err = SA_OK; 654 sa_handle_t handle; 655 boolean_t first = B_TRUE; /* work around sharetab issue */ 656 657 if (path == NULL) 658 return (err); 659 660 /* 661 * If the share is in a ZFS group we need to handle it 662 * differently. Just being on a ZFS file system isn't 663 * enough since we may be in a legacy share case. 664 */ 665 parent = sa_get_parent_group(share); 666 iszfs = sa_group_is_zfs(parent); 667 668 if (!smb_isonline()) 669 goto done; 670 671 for (resource = sa_get_share_resource(share, NULL); 672 resource != NULL || err != SA_OK; 673 resource = sa_get_next_resource(resource)) { 674 rname = sa_get_resource_attr(resource, "name"); 675 if (rname == NULL) { 676 continue; 677 } 678 if (!iszfs) { 679 err = smb_share_delete(rname); 680 switch (err) { 681 case NERR_NetNameNotFound: 682 case NERR_Success: 683 err = SA_OK; 684 break; 685 default: 686 err = SA_CONFIG_ERR; 687 break; 688 } 689 } else { 690 share_t sh; 691 692 sa_sharetab_fill_zfs(share, &sh, "smb"); 693 err = sa_share_zfs(share, resource, (char *)path, &sh, 694 rname, ZFS_UNSHARE_SMB); 695 /* 696 * If we are no longer the first case, we 697 * don't care about the sa_share_zfs err if it 698 * is -1. This works around a problem in 699 * sharefs and should be removed when sharefs 700 * supports multiple entries per path. 701 */ 702 if (!first && err == -1) 703 err = SA_OK; 704 first = B_FALSE; 705 706 sa_emptyshare(&sh); 707 } 708 sa_free_attr_string(rname); 709 } 710 done: 711 if (!iszfs) { 712 handle = sa_find_group_handle((sa_group_t)share); 713 if (handle != NULL) 714 (void) sa_delete_sharetab(handle, path, "smb"); 715 else 716 err = SA_SYSTEM_ERR; 717 } 718 return (err); 719 } 720 721 /* 722 * smb_validate_property(handle, property, parent) 723 * 724 * Check that the property has a legitimate value for its type. 725 * Handle isn't currently used but may need to be in the future. 726 */ 727 728 /*ARGSUSED*/ 729 static int 730 smb_validate_property(sa_handle_t handle, sa_property_t property, 731 sa_optionset_t parent) 732 { 733 int ret = SA_OK; 734 char *propname; 735 int optindex; 736 sa_group_t parent_group; 737 char *value; 738 char *other; 739 740 propname = sa_get_property_attr(property, "type"); 741 742 if ((optindex = findopt(propname)) < 0) 743 ret = SA_NO_SUCH_PROP; 744 745 /* need to validate value range here as well */ 746 if (ret == SA_OK) { 747 parent_group = sa_get_parent_group((sa_share_t)parent); 748 if (optdefs[optindex].share && !sa_is_share(parent_group)) 749 ret = SA_PROP_SHARE_ONLY; 750 } 751 if (ret != SA_OK) { 752 if (propname != NULL) 753 sa_free_attr_string(propname); 754 return (ret); 755 } 756 757 value = sa_get_property_attr(property, "value"); 758 if (value != NULL) { 759 /* first basic type checking */ 760 switch (optdefs[optindex].type) { 761 case OPT_TYPE_NUMBER: 762 /* check that the value is all digits */ 763 if (!is_a_number(value)) 764 ret = SA_BAD_VALUE; 765 break; 766 case OPT_TYPE_BOOLEAN: 767 if (strlen(value) == 0 || 768 strcasecmp(value, "true") == 0 || 769 strcmp(value, "1") == 0 || 770 strcasecmp(value, "false") == 0 || 771 strcmp(value, "0") == 0) { 772 ret = SA_OK; 773 } else { 774 ret = SA_BAD_VALUE; 775 } 776 break; 777 case OPT_TYPE_NAME: 778 /* 779 * Make sure no invalid characters 780 */ 781 if (validresource(value) == B_FALSE) 782 ret = SA_BAD_VALUE; 783 break; 784 case OPT_TYPE_STRING: 785 /* whatever is here should be ok */ 786 break; 787 case OPT_TYPE_CSC: 788 if (validcsc(value) == B_FALSE) 789 ret = SA_BAD_VALUE; 790 break; 791 case OPT_TYPE_ACCLIST: { 792 sa_property_t oprop; 793 char *ovalue; 794 /* 795 * access list handling. Should eventually 796 * validate that all the values make sense. 797 * Also, ro and rw may have cross value 798 * conflicts. 799 */ 800 if (parent == NULL) 801 break; 802 if (strcmp(propname, SHOPT_RO) == 0) 803 other = SHOPT_RW; 804 else if (strcmp(propname, SHOPT_RW) == 0) 805 other = SHOPT_RO; 806 else 807 other = NULL; 808 if (other == NULL) 809 break; 810 811 /* compare rw(ro) with ro(rw) */ 812 oprop = sa_get_property(parent, other); 813 if (oprop == NULL) 814 break; 815 /* 816 * only potential 817 * confusion if other 818 * exists 819 */ 820 ovalue = sa_get_property_attr(oprop, "value"); 821 if (ovalue != NULL) { 822 ret = check_rorw(value, ovalue); 823 sa_free_attr_string(ovalue); 824 } 825 break; 826 } 827 default: 828 break; 829 } 830 } 831 832 if (value != NULL) 833 sa_free_attr_string(value); 834 if (ret == SA_OK && optdefs[optindex].check != NULL) 835 /* do the property specific check */ 836 ret = optdefs[optindex].check(property); 837 838 if (propname != NULL) 839 sa_free_attr_string(propname); 840 return (ret); 841 } 842 843 /* 844 * Protocol management functions 845 * 846 * properties defined in the default files are defined in 847 * proto_option_defs for parsing and validation. 848 */ 849 850 struct smb_proto_option_defs { 851 int smb_index; 852 int32_t minval; 853 int32_t maxval; /* In case of length of string this should be max */ 854 int (*validator)(int, char *); 855 int32_t refresh; 856 } smb_proto_options[] = { 857 { SMB_CI_SYS_CMNT, 0, MAX_VALUE_BUFLEN, 858 string_length_check_validator, SMB_REFRESH_REFRESH }, 859 { SMB_CI_MAX_WORKERS, 64, 1024, range_check_validator, 860 SMB_REFRESH_REFRESH }, 861 { SMB_CI_NBSCOPE, 0, MAX_VALUE_BUFLEN, 862 string_length_check_validator, 0 }, 863 { SMB_CI_LM_LEVEL, 2, 5, range_check_validator, 0 }, 864 { SMB_CI_KEEPALIVE, 20, 5400, range_check_validator_zero_ok, 865 SMB_REFRESH_REFRESH }, 866 { SMB_CI_WINS_SRV1, 0, MAX_VALUE_BUFLEN, 867 ip_address_validator_empty_ok, SMB_REFRESH_REFRESH }, 868 { SMB_CI_WINS_SRV2, 0, MAX_VALUE_BUFLEN, 869 ip_address_validator_empty_ok, SMB_REFRESH_REFRESH }, 870 { SMB_CI_WINS_EXCL, 0, MAX_VALUE_BUFLEN, 871 interface_validator, SMB_REFRESH_REFRESH }, 872 { SMB_CI_SIGNING_ENABLE, 0, 0, true_false_validator, 873 SMB_REFRESH_REFRESH }, 874 { SMB_CI_SIGNING_REQD, 0, 0, true_false_validator, 875 SMB_REFRESH_REFRESH }, 876 { SMB_CI_RESTRICT_ANON, 0, 0, true_false_validator, 877 SMB_REFRESH_REFRESH }, 878 { SMB_CI_DOMAIN_SRV, 0, MAX_VALUE_BUFLEN, 879 ip_address_validator_empty_ok, 0 }, 880 { SMB_CI_ADS_SITE, 0, MAX_VALUE_BUFLEN, 881 string_length_check_validator, SMB_REFRESH_REFRESH }, 882 { SMB_CI_DYNDNS_ENABLE, 0, 0, true_false_validator, 0 }, 883 { SMB_CI_AUTOHOME_MAP, 0, MAX_VALUE_BUFLEN, path_validator, 0 }, 884 { SMB_CI_IPV6_ENABLE, 0, 0, true_false_validator, 885 SMB_REFRESH_REFRESH }, 886 }; 887 888 #define SMB_OPT_NUM \ 889 (sizeof (smb_proto_options) / sizeof (smb_proto_options[0])) 890 891 /* 892 * Check the range of value as int range. 893 */ 894 static int 895 range_check_validator(int index, char *value) 896 { 897 int ret = SA_OK; 898 899 if (!is_a_number(value)) { 900 ret = SA_BAD_VALUE; 901 } else { 902 int val; 903 val = strtoul(value, NULL, 0); 904 if (val < smb_proto_options[index].minval || 905 val > smb_proto_options[index].maxval) 906 ret = SA_BAD_VALUE; 907 } 908 return (ret); 909 } 910 911 /* 912 * Check the range of value as int range. 913 */ 914 static int 915 range_check_validator_zero_ok(int index, char *value) 916 { 917 int ret = SA_OK; 918 919 if (!is_a_number(value)) { 920 ret = SA_BAD_VALUE; 921 } else { 922 int val; 923 val = strtoul(value, NULL, 0); 924 if (val == 0) 925 ret = SA_OK; 926 else { 927 if (val < smb_proto_options[index].minval || 928 val > smb_proto_options[index].maxval) 929 ret = SA_BAD_VALUE; 930 } 931 } 932 return (ret); 933 } 934 935 /* 936 * Check the length of the string 937 */ 938 static int 939 string_length_check_validator(int index, char *value) 940 { 941 int ret = SA_OK; 942 943 if (value == NULL) 944 return (SA_BAD_VALUE); 945 if (strlen(value) > smb_proto_options[index].maxval) 946 ret = SA_BAD_VALUE; 947 return (ret); 948 } 949 950 /* 951 * Check yes/no 952 */ 953 /*ARGSUSED*/ 954 static int 955 true_false_validator(int index, char *value) 956 { 957 if (value == NULL) 958 return (SA_BAD_VALUE); 959 if ((strcasecmp(value, "true") == 0) || 960 (strcasecmp(value, "false") == 0)) 961 return (SA_OK); 962 return (SA_BAD_VALUE); 963 } 964 965 /* 966 * Check IP address. 967 */ 968 /*ARGSUSED*/ 969 static int 970 ip_address_validator_empty_ok(int index, char *value) 971 { 972 char sbytes[16]; 973 int len; 974 975 if (value == NULL) 976 return (SA_OK); 977 len = strlen(value); 978 if (len == 0) 979 return (SA_OK); 980 if (inet_pton(AF_INET, value, (void *)sbytes) != 1) 981 return (SA_BAD_VALUE); 982 983 return (SA_OK); 984 } 985 986 /* 987 * Call back function for dlpi_walk. 988 * Returns TRUE if interface name exists on the host. 989 */ 990 static boolean_t 991 smb_get_interface(const char *ifname, void *arg) 992 { 993 smb_hostifs_walker_t *iterp = arg; 994 995 iterp->hiw_matchfound = (strcmp(ifname, iterp->hiw_ifname) == 0); 996 997 return (iterp->hiw_matchfound); 998 } 999 1000 /* 1001 * Checks to see if the input interface exists on the host. 1002 * Returns B_TRUE if the match is found, B_FALSE otherwise. 1003 */ 1004 static boolean_t 1005 smb_validate_interface(const char *ifname) 1006 { 1007 smb_hostifs_walker_t iter; 1008 1009 if ((ifname == NULL) || (*ifname == '\0')) 1010 return (B_FALSE); 1011 1012 iter.hiw_ifname = ifname; 1013 iter.hiw_matchfound = B_FALSE; 1014 dlpi_walk(smb_get_interface, &iter, 0); 1015 1016 return (iter.hiw_matchfound); 1017 } 1018 1019 /* 1020 * Check valid interfaces. Interface names value can be NULL or empty. 1021 * Returns SA_BAD_VALUE if interface cannot be found on the host. 1022 */ 1023 /*ARGSUSED*/ 1024 static int 1025 interface_validator(int index, char *value) 1026 { 1027 char buf[16]; 1028 int ret = SA_OK; 1029 char *ifname, *tmp, *p; 1030 1031 if (value == NULL || *value == '\0') 1032 return (ret); 1033 1034 if (strlen(value) > MAX_VALUE_BUFLEN) 1035 return (SA_BAD_VALUE); 1036 1037 if ((p = strdup(value)) == NULL) 1038 return (SA_NO_MEMORY); 1039 1040 tmp = p; 1041 while ((ifname = strsep(&tmp, ",")) != NULL) { 1042 if (*ifname == '\0') { 1043 ret = SA_BAD_VALUE; 1044 break; 1045 } 1046 1047 if (!smb_validate_interface(ifname)) { 1048 if (inet_pton(AF_INET, ifname, (void *)buf) == 0) { 1049 ret = SA_BAD_VALUE; 1050 break; 1051 } 1052 } 1053 } 1054 1055 free(p); 1056 return (ret); 1057 } 1058 1059 /* 1060 * Check path 1061 */ 1062 /*ARGSUSED*/ 1063 static int 1064 path_validator(int index, char *path) 1065 { 1066 struct stat buffer; 1067 int fd, status; 1068 1069 if (path == NULL) 1070 return (SA_BAD_VALUE); 1071 1072 fd = open(path, O_RDONLY); 1073 if (fd < 0) 1074 return (SA_BAD_VALUE); 1075 1076 status = fstat(fd, &buffer); 1077 (void) close(fd); 1078 1079 if (status < 0) 1080 return (SA_BAD_VALUE); 1081 1082 if (buffer.st_mode & S_IFDIR) 1083 return (SA_OK); 1084 return (SA_BAD_VALUE); 1085 } 1086 1087 /* 1088 * the protoset holds the defined options so we don't have to read 1089 * them multiple times 1090 */ 1091 static sa_protocol_properties_t protoset; 1092 1093 static int 1094 findprotoopt(char *name) 1095 { 1096 int i; 1097 char *sc_name; 1098 1099 for (i = 0; i < SMB_OPT_NUM; i++) { 1100 sc_name = smb_config_getname(smb_proto_options[i].smb_index); 1101 if (strcasecmp(sc_name, name) == 0) 1102 return (i); 1103 } 1104 1105 return (-1); 1106 } 1107 1108 /* 1109 * smb_load_proto_properties() 1110 * 1111 * read the smb config values from SMF. 1112 */ 1113 1114 static int 1115 smb_load_proto_properties() 1116 { 1117 sa_property_t prop; 1118 char value[MAX_VALUE_BUFLEN]; 1119 char *name; 1120 int index; 1121 int ret = SA_OK; 1122 int rc; 1123 1124 protoset = sa_create_protocol_properties(SMB_PROTOCOL_NAME); 1125 if (protoset == NULL) 1126 return (SA_NO_MEMORY); 1127 1128 for (index = 0; index < SMB_OPT_NUM && ret == SA_OK; index++) { 1129 rc = smb_config_get(smb_proto_options[index].smb_index, 1130 value, sizeof (value)); 1131 if (rc != SMBD_SMF_OK) 1132 continue; 1133 name = smb_config_getname(smb_proto_options[index].smb_index); 1134 prop = sa_create_property(name, value); 1135 if (prop != NULL) 1136 ret = sa_add_protocol_property(protoset, prop); 1137 else 1138 ret = SA_NO_MEMORY; 1139 } 1140 return (ret); 1141 } 1142 1143 /* 1144 * smb_share_init() 1145 * 1146 * Initialize the smb plugin. 1147 */ 1148 1149 static int 1150 smb_share_init(void) 1151 { 1152 if (sa_plugin_ops.sa_init != smb_share_init) 1153 return (SA_SYSTEM_ERR); 1154 1155 smb_share_door_clnt_init(); 1156 return (smb_load_proto_properties()); 1157 } 1158 1159 /* 1160 * smb_share_fini() 1161 * 1162 */ 1163 static void 1164 smb_share_fini(void) 1165 { 1166 xmlFreeNode(protoset); 1167 protoset = NULL; 1168 1169 smb_share_door_clnt_fini(); 1170 } 1171 1172 /* 1173 * smb_get_proto_set() 1174 * 1175 * Return an optionset with all the protocol specific properties in 1176 * it. 1177 */ 1178 static sa_protocol_properties_t 1179 smb_get_proto_set(void) 1180 { 1181 return (protoset); 1182 } 1183 1184 /* 1185 * smb_enable_dependencies() 1186 * 1187 * SMBD_DEFAULT_INSTANCE_FMRI may have some dependencies that aren't 1188 * enabled. This will attempt to enable all of them. 1189 */ 1190 static void 1191 smb_enable_dependencies(const char *fmri) 1192 { 1193 scf_handle_t *handle; 1194 scf_service_t *service; 1195 scf_instance_t *inst = NULL; 1196 scf_iter_t *iter; 1197 scf_property_t *prop; 1198 scf_value_t *value; 1199 scf_propertygroup_t *pg; 1200 scf_scope_t *scope; 1201 char type[SCFTYPE_LEN]; 1202 char *dependency; 1203 char *servname; 1204 int maxlen; 1205 1206 /* 1207 * Get all required handles and storage. 1208 */ 1209 handle = scf_handle_create(SCF_VERSION); 1210 if (handle == NULL) 1211 return; 1212 1213 if (scf_handle_bind(handle) != 0) { 1214 scf_handle_destroy(handle); 1215 return; 1216 } 1217 1218 maxlen = scf_limit(SCF_LIMIT_MAX_VALUE_LENGTH); 1219 if (maxlen == (ssize_t)-1) 1220 maxlen = MAXPATHLEN; 1221 1222 dependency = malloc(maxlen); 1223 1224 service = scf_service_create(handle); 1225 1226 iter = scf_iter_create(handle); 1227 1228 pg = scf_pg_create(handle); 1229 1230 prop = scf_property_create(handle); 1231 1232 value = scf_value_create(handle); 1233 1234 scope = scf_scope_create(handle); 1235 1236 if (service == NULL || iter == NULL || pg == NULL || prop == NULL || 1237 value == NULL || scope == NULL || dependency == NULL) 1238 goto done; 1239 1240 /* 1241 * We passed in the FMRI for the default instance but for 1242 * some things we need the simple form so construct it. Since 1243 * we reuse the storage that dependency points to, we need to 1244 * use the servname early. 1245 */ 1246 (void) snprintf(dependency, maxlen, "%s", fmri + sizeof ("svc:")); 1247 servname = strrchr(dependency, ':'); 1248 if (servname == NULL) 1249 goto done; 1250 *servname = '\0'; 1251 servname = dependency; 1252 1253 /* 1254 * Setup to iterate over the service property groups, only 1255 * looking at those that are "dependency" types. The "entity" 1256 * property will have the FMRI of the service we are dependent 1257 * on. 1258 */ 1259 if (scf_handle_get_scope(handle, SCF_SCOPE_LOCAL, scope) != 0) 1260 goto done; 1261 1262 if (scf_scope_get_service(scope, servname, service) != 0) 1263 goto done; 1264 1265 if (scf_iter_service_pgs(iter, service) != 0) 1266 goto done; 1267 1268 while (scf_iter_next_pg(iter, pg) > 0) { 1269 char *services[2]; 1270 /* 1271 * Have a property group for the service. See if it is 1272 * a dependency pg and only do operations on those. 1273 */ 1274 if (scf_pg_get_type(pg, type, SCFTYPE_LEN) <= 0) 1275 continue; 1276 1277 if (strncmp(type, SCF_GROUP_DEPENDENCY, SCFTYPE_LEN) != 0) 1278 continue; 1279 /* 1280 * Have a dependency. Attempt to enable it. 1281 */ 1282 if (scf_pg_get_property(pg, SCF_PROPERTY_ENTITIES, prop) != 0) 1283 continue; 1284 1285 if (scf_property_get_value(prop, value) != 0) 1286 continue; 1287 1288 services[1] = NULL; 1289 1290 if (scf_value_get_as_string(value, dependency, maxlen) > 0) { 1291 services[0] = dependency; 1292 _check_services(services); 1293 } 1294 } 1295 1296 done: 1297 if (dependency != NULL) 1298 free(dependency); 1299 if (value != NULL) 1300 scf_value_destroy(value); 1301 if (prop != NULL) 1302 scf_property_destroy(prop); 1303 if (pg != NULL) 1304 scf_pg_destroy(pg); 1305 if (iter != NULL) 1306 scf_iter_destroy(iter); 1307 if (scope != NULL) 1308 scf_scope_destroy(scope); 1309 if (inst != NULL) 1310 scf_instance_destroy(inst); 1311 if (service != NULL) 1312 scf_service_destroy(service); 1313 1314 (void) scf_handle_unbind(handle); 1315 scf_handle_destroy(handle); 1316 } 1317 1318 /* 1319 * How long to wait for service to come online 1320 */ 1321 #define WAIT_FOR_SERVICE 15 1322 1323 /* 1324 * smb_enable_service() 1325 * 1326 */ 1327 static int 1328 smb_enable_service(void) 1329 { 1330 int i; 1331 int ret = SA_OK; 1332 char *service[] = { SMBD_DEFAULT_INSTANCE_FMRI, NULL }; 1333 1334 if (!smb_isonline()) { 1335 /* 1336 * Attempt to start the idmap, and other dependent 1337 * services, first. If it fails, the SMB service will 1338 * ultimately fail so we use that as the error. If we 1339 * don't try to enable idmap, smb won't start the 1340 * first time unless the admin has done it 1341 * manually. The service could be administratively 1342 * disabled so we won't always get started. 1343 */ 1344 smb_enable_dependencies(SMBD_DEFAULT_INSTANCE_FMRI); 1345 _check_services(service); 1346 1347 /* Wait for service to come online */ 1348 for (i = 0; i < WAIT_FOR_SERVICE; i++) { 1349 if (smb_isonline()) { 1350 ret = SA_OK; 1351 break; 1352 } else if (smb_ismaint()) { 1353 /* maintenance requires help */ 1354 ret = SA_SYSTEM_ERR; 1355 break; 1356 } else if (smb_isdisabled()) { 1357 /* disabled is ok */ 1358 ret = SA_OK; 1359 break; 1360 } else { 1361 /* try another time */ 1362 ret = SA_BUSY; 1363 (void) sleep(1); 1364 } 1365 } 1366 } 1367 return (ret); 1368 } 1369 1370 /* 1371 * smb_validate_proto_prop(index, name, value) 1372 * 1373 * Verify that the property specified by name can take the new 1374 * value. This is a sanity check to prevent bad values getting into 1375 * the default files. 1376 */ 1377 static int 1378 smb_validate_proto_prop(int index, char *name, char *value) 1379 { 1380 if ((name == NULL) || (index < 0)) 1381 return (SA_BAD_VALUE); 1382 1383 if (smb_proto_options[index].validator == NULL) 1384 return (SA_OK); 1385 1386 if (smb_proto_options[index].validator(index, value) == SA_OK) 1387 return (SA_OK); 1388 return (SA_BAD_VALUE); 1389 } 1390 1391 /* 1392 * smb_set_proto_prop(prop) 1393 * 1394 * check that prop is valid. 1395 */ 1396 /*ARGSUSED*/ 1397 static int 1398 smb_set_proto_prop(sa_property_t prop) 1399 { 1400 int ret = SA_OK; 1401 char *name; 1402 char *value; 1403 int index = -1; 1404 struct smb_proto_option_defs *opt; 1405 1406 name = sa_get_property_attr(prop, "type"); 1407 value = sa_get_property_attr(prop, "value"); 1408 if (name != NULL && value != NULL) { 1409 index = findprotoopt(name); 1410 if (index >= 0) { 1411 /* should test for valid value */ 1412 ret = smb_validate_proto_prop(index, name, value); 1413 if (ret == SA_OK) { 1414 opt = &smb_proto_options[index]; 1415 1416 /* Save to SMF */ 1417 (void) smb_config_set(opt->smb_index, value); 1418 /* 1419 * Specialized refresh mechanisms can 1420 * be flagged in the proto_options and 1421 * processed here. 1422 */ 1423 if (opt->refresh & SMB_REFRESH_REFRESH) 1424 (void) smf_refresh_instance( 1425 SMBD_DEFAULT_INSTANCE_FMRI); 1426 else if (opt->refresh & SMB_REFRESH_RESTART) 1427 (void) smf_restart_instance( 1428 SMBD_DEFAULT_INSTANCE_FMRI); 1429 } 1430 } 1431 } 1432 1433 if (name != NULL) 1434 sa_free_attr_string(name); 1435 if (value != NULL) 1436 sa_free_attr_string(value); 1437 1438 return (ret); 1439 } 1440 1441 /* 1442 * smb_get_status() 1443 * 1444 * What is the current status of the smbd? We use the SMF state here. 1445 * Caller must free the returned value. 1446 */ 1447 1448 static char * 1449 smb_get_status(void) 1450 { 1451 char *state = NULL; 1452 state = smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI); 1453 return (state != NULL ? state : "-"); 1454 } 1455 1456 /* 1457 * This protocol plugin require resource names 1458 */ 1459 static uint64_t 1460 smb_share_features(void) 1461 { 1462 return (SA_FEATURE_RESOURCE | SA_FEATURE_ALLOWSUBDIRS | 1463 SA_FEATURE_ALLOWPARDIRS | SA_FEATURE_SERVER); 1464 } 1465 1466 /* 1467 * This should be used to convert smb_share_t to sa_resource_t 1468 * Should only be needed to build transient shares/resources to be 1469 * supplied to sharemgr to display. 1470 */ 1471 static int 1472 smb_add_transient(sa_handle_t handle, smb_share_t *si) 1473 { 1474 int err; 1475 sa_share_t share; 1476 sa_group_t group; 1477 sa_resource_t resource; 1478 char *cscopt; 1479 1480 if (si == NULL) 1481 return (SA_INVALID_NAME); 1482 1483 if ((share = sa_find_share(handle, si->shr_path)) == NULL) { 1484 if ((group = smb_get_defaultgrp(handle)) == NULL) 1485 return (SA_NO_SUCH_GROUP); 1486 1487 share = sa_get_share(group, si->shr_path); 1488 if (share == NULL) { 1489 share = sa_add_share(group, si->shr_path, 1490 SA_SHARE_TRANSIENT, &err); 1491 if (share == NULL) 1492 return (SA_NO_SUCH_PATH); 1493 } 1494 } 1495 1496 /* 1497 * Now handle the resource. Make sure that the resource is 1498 * transient and added to the share. 1499 */ 1500 resource = sa_get_share_resource(share, si->shr_name); 1501 if (resource == NULL) { 1502 resource = sa_add_resource(share, 1503 si->shr_name, SA_SHARE_TRANSIENT, &err); 1504 if (resource == NULL) 1505 return (SA_NO_SUCH_RESOURCE); 1506 } 1507 1508 if (si->shr_cmnt[0] != '\0') 1509 (void) sa_set_resource_description(resource, si->shr_cmnt); 1510 if (si->shr_container[0] != '\0') 1511 (void) sa_set_resource_attr(resource, SHOPT_AD_CONTAINER, 1512 si->shr_container); 1513 if ((cscopt = smb_csc_name(si)) != NULL) 1514 (void) sa_set_resource_attr(resource, SHOPT_CSC, cscopt); 1515 1516 return (SA_OK); 1517 } 1518 1519 /* 1520 * Return smb transient shares. 1521 */ 1522 static int 1523 smb_list_transient(sa_handle_t handle) 1524 { 1525 int i, offset; 1526 smb_shrlist_t list; 1527 int res; 1528 1529 if (smb_share_count() <= 0) 1530 return (SA_OK); 1531 1532 offset = 0; 1533 while (smb_share_list(offset, &list) == NERR_Success) { 1534 if (list.sl_cnt == 0) 1535 break; 1536 1537 for (i = 0; i < list.sl_cnt; i++) { 1538 res = smb_add_transient(handle, &(list.sl_shares[i])); 1539 if (res != SA_OK) 1540 return (res); 1541 } 1542 offset += list.sl_cnt; 1543 } 1544 1545 return (SA_OK); 1546 } 1547 1548 /* 1549 * fix_resource_name(share, name, prefix) 1550 * 1551 * Construct a name where the ZFS dataset has the prefix replaced with "name". 1552 */ 1553 static char * 1554 fix_resource_name(sa_share_t share, char *name, char *prefix) 1555 { 1556 char buf[SA_MAX_RESOURCE_NAME + 1]; 1557 char *dataset; 1558 size_t bufsz = SA_MAX_RESOURCE_NAME + 1; 1559 size_t prelen; 1560 1561 dataset = sa_get_share_attr(share, "dataset"); 1562 if (dataset == NULL) 1563 return (strdup(name)); 1564 1565 (void) strlcpy(buf, name, bufsz); 1566 prelen = strlen(prefix); 1567 1568 if (strncmp(dataset, prefix, prelen) == 0) 1569 (void) strlcat(buf, dataset + prelen, bufsz); 1570 1571 sa_free_attr_string(dataset); 1572 sa_fix_resource_name(buf); 1573 return (strdup(buf)); 1574 } 1575 1576 /* 1577 * smb_parse_optstring(group, options) 1578 * 1579 * parse a compact option string into individual options. This allows 1580 * ZFS sharesmb and sharemgr "share" command to work. group can be a 1581 * group, a share or a resource. 1582 */ 1583 static int 1584 smb_parse_optstring(sa_group_t group, char *options) 1585 { 1586 char *dup; 1587 char *base; 1588 char *lasts; 1589 char *token; 1590 sa_optionset_t optionset; 1591 sa_group_t parent = NULL; 1592 sa_resource_t resource = NULL; 1593 int iszfs = 0; 1594 int persist = 0; 1595 int need_optionset = 0; 1596 int ret = SA_OK; 1597 sa_property_t prop; 1598 1599 /* 1600 * In order to not attempt to change ZFS properties unless 1601 * absolutely necessary, we never do it in the legacy parsing 1602 * so we need to keep track of this. 1603 */ 1604 if (sa_is_share(group)) { 1605 char *zfs; 1606 1607 parent = sa_get_parent_group(group); 1608 if (parent != NULL) { 1609 zfs = sa_get_group_attr(parent, "zfs"); 1610 if (zfs != NULL) { 1611 sa_free_attr_string(zfs); 1612 iszfs = 1; 1613 } 1614 } 1615 } else { 1616 iszfs = sa_group_is_zfs(group); 1617 /* 1618 * If a ZFS group, then we need to see if a resource 1619 * name is being set. If so, bail with 1620 * SA_PROP_SHARE_ONLY, so we come back in with a share 1621 * instead of a group. 1622 */ 1623 if (strncmp(options, "name=", sizeof ("name=") - 1) == 0 || 1624 strstr(options, ",name=") != NULL) { 1625 return (SA_PROP_SHARE_ONLY); 1626 } 1627 } 1628 1629 /* do we have an existing optionset? */ 1630 optionset = sa_get_optionset(group, "smb"); 1631 if (optionset == NULL) { 1632 /* didn't find existing optionset so create one */ 1633 optionset = sa_create_optionset(group, "smb"); 1634 if (optionset == NULL) 1635 return (SA_NO_MEMORY); 1636 } else { 1637 /* 1638 * If an optionset already exists, we've come through 1639 * twice so ignore the second time. 1640 */ 1641 return (ret); 1642 } 1643 1644 /* We need a copy of options for the next part. */ 1645 dup = strdup(options); 1646 if (dup == NULL) 1647 return (SA_NO_MEMORY); 1648 1649 /* 1650 * SMB properties are straightforward and are strings, 1651 * integers or booleans. Properties are separated by 1652 * commas. It will be necessary to parse quotes due to some 1653 * strings not having a restricted characters set. 1654 * 1655 * Note that names will create a resource. For now, if there 1656 * is a set of properties "before" the first name="", those 1657 * properties will be placed on the group. 1658 */ 1659 persist = sa_is_persistent(group); 1660 base = dup; 1661 token = dup; 1662 lasts = NULL; 1663 while (token != NULL && ret == SA_OK) { 1664 ret = SA_OK; 1665 token = strtok_r(base, ",", &lasts); 1666 base = NULL; 1667 if (token != NULL) { 1668 char *value; 1669 /* 1670 * All SMB properties have values so there 1671 * MUST be an '=' character. If it doesn't, 1672 * it is a syntax error. 1673 */ 1674 value = strchr(token, '='); 1675 if (value != NULL) { 1676 *value++ = '\0'; 1677 } else { 1678 ret = SA_SYNTAX_ERR; 1679 break; 1680 } 1681 /* 1682 * We may need to handle a "name" property 1683 * that is a ZFS imposed resource name. Each 1684 * name would trigger getting a new "resource" 1685 * to put properties on. For now, assume no 1686 * "name" property for special handling. 1687 */ 1688 1689 if (strcmp(token, "name") == 0) { 1690 char *prefix; 1691 char *name = NULL; 1692 /* 1693 * We have a name, so now work on the 1694 * resource level. We have a "share" 1695 * in "group" due to the caller having 1696 * added it. If we are called with a 1697 * group, the check for group/share 1698 * at the beginning of this function 1699 * will bail out the parse if there is a 1700 * "name" but no share. 1701 */ 1702 if (!iszfs) { 1703 ret = SA_SYNTAX_ERR; 1704 break; 1705 } 1706 /* 1707 * Make sure the parent group has the 1708 * "prefix" property since we will 1709 * need to use this for constructing 1710 * inherited name= values. 1711 */ 1712 prefix = sa_get_group_attr(parent, "prefix"); 1713 if (prefix == NULL) { 1714 prefix = sa_get_group_attr(parent, 1715 "name"); 1716 if (prefix != NULL) { 1717 (void) sa_set_group_attr(parent, 1718 "prefix", prefix); 1719 } 1720 } 1721 name = fix_resource_name((sa_share_t)group, 1722 value, prefix); 1723 if (name != NULL) { 1724 resource = sa_add_resource( 1725 (sa_share_t)group, name, 1726 SA_SHARE_TRANSIENT, &ret); 1727 sa_free_attr_string(name); 1728 } else { 1729 ret = SA_NO_MEMORY; 1730 } 1731 if (prefix != NULL) 1732 sa_free_attr_string(prefix); 1733 1734 /* A resource level optionset is needed */ 1735 1736 need_optionset = 1; 1737 if (resource == NULL) { 1738 ret = SA_NO_MEMORY; 1739 break; 1740 } 1741 continue; 1742 } 1743 1744 if (need_optionset) { 1745 optionset = sa_create_optionset(resource, 1746 "smb"); 1747 need_optionset = 0; 1748 } 1749 1750 prop = sa_create_property(token, value); 1751 if (prop == NULL) 1752 ret = SA_NO_MEMORY; 1753 else 1754 ret = sa_add_property(optionset, prop); 1755 if (ret != SA_OK) 1756 break; 1757 if (!iszfs) 1758 ret = sa_commit_properties(optionset, !persist); 1759 } 1760 } 1761 free(dup); 1762 return (ret); 1763 } 1764 1765 /* 1766 * smb_sprint_option(rbuff, rbuffsize, incr, prop, sep) 1767 * 1768 * provides a mechanism to format SMB properties into legacy output 1769 * format. If the buffer would overflow, it is reallocated and grown 1770 * as appropriate. Special cases of converting internal form of values 1771 * to those used by "share" are done. this function does one property 1772 * at a time. 1773 */ 1774 1775 static void 1776 smb_sprint_option(char **rbuff, size_t *rbuffsize, size_t incr, 1777 sa_property_t prop, int sep) 1778 { 1779 char *name; 1780 char *value; 1781 int curlen; 1782 char *buff = *rbuff; 1783 size_t buffsize = *rbuffsize; 1784 1785 name = sa_get_property_attr(prop, "type"); 1786 value = sa_get_property_attr(prop, "value"); 1787 if (buff != NULL) 1788 curlen = strlen(buff); 1789 else 1790 curlen = 0; 1791 if (name != NULL) { 1792 int len; 1793 len = strlen(name) + sep; 1794 1795 /* 1796 * A future RFE would be to replace this with more 1797 * generic code and to possibly handle more types. 1798 * 1799 * For now, everything else is treated as a string. If 1800 * we get any properties that aren't exactly 1801 * name/value pairs, we may need to 1802 * interpret/transform. 1803 */ 1804 if (value != NULL) 1805 len += 1 + strlen(value); 1806 1807 while (buffsize <= (curlen + len)) { 1808 /* need more room */ 1809 buffsize += incr; 1810 buff = realloc(buff, buffsize); 1811 *rbuff = buff; 1812 *rbuffsize = buffsize; 1813 if (buff == NULL) { 1814 /* realloc failed so free everything */ 1815 if (*rbuff != NULL) 1816 free(*rbuff); 1817 goto err; 1818 } 1819 } 1820 if (buff == NULL) 1821 goto err; 1822 (void) snprintf(buff + curlen, buffsize - curlen, 1823 "%s%s=%s", sep ? "," : "", 1824 name, value != NULL ? value : "\"\""); 1825 1826 } 1827 err: 1828 if (name != NULL) 1829 sa_free_attr_string(name); 1830 if (value != NULL) 1831 sa_free_attr_string(value); 1832 } 1833 1834 /* 1835 * smb_format_resource_options(resource, hier) 1836 * 1837 * format all the options on the group into a flattened option 1838 * string. If hier is non-zero, walk up the tree to get inherited 1839 * options. 1840 */ 1841 1842 static char * 1843 smb_format_options(sa_group_t group, int hier) 1844 { 1845 sa_optionset_t options = NULL; 1846 sa_property_t prop; 1847 int sep = 0; 1848 char *buff; 1849 size_t buffsize; 1850 1851 1852 buff = malloc(OPT_CHUNK); 1853 if (buff == NULL) 1854 return (NULL); 1855 1856 buff[0] = '\0'; 1857 buffsize = OPT_CHUNK; 1858 1859 /* 1860 * We may have a an optionset relative to this item. format 1861 * these if we find them and then add any security definitions. 1862 */ 1863 1864 options = sa_get_derived_optionset(group, "smb", hier); 1865 1866 /* 1867 * do the default set first but skip any option that is also 1868 * in the protocol specific optionset. 1869 */ 1870 if (options != NULL) { 1871 for (prop = sa_get_property(options, NULL); 1872 prop != NULL; prop = sa_get_next_property(prop)) { 1873 /* 1874 * use this one since we skipped any 1875 * of these that were also in 1876 * optdefault 1877 */ 1878 smb_sprint_option(&buff, &buffsize, OPT_CHUNK, 1879 prop, sep); 1880 if (buff == NULL) { 1881 /* 1882 * buff could become NULL if there 1883 * isn't enough memory for 1884 * smb_sprint_option to realloc() 1885 * as necessary. We can't really 1886 * do anything about it at this 1887 * point so we return NULL. The 1888 * caller should handle the 1889 * failure. 1890 */ 1891 if (options != NULL) 1892 sa_free_derived_optionset( 1893 options); 1894 return (buff); 1895 } 1896 sep = 1; 1897 } 1898 } 1899 1900 if (options != NULL) 1901 sa_free_derived_optionset(options); 1902 return (buff); 1903 } 1904 1905 /* 1906 * smb_rename_resource(resource, newname) 1907 * 1908 * Change the current exported name of the resource to newname. 1909 */ 1910 /*ARGSUSED*/ 1911 int 1912 smb_rename_resource(sa_handle_t handle, sa_resource_t resource, char *newname) 1913 { 1914 int ret = SA_OK; 1915 int err; 1916 char *oldname; 1917 1918 if (!smb_isonline()) 1919 return (SA_OK); 1920 1921 oldname = sa_get_resource_attr(resource, "name"); 1922 if (oldname == NULL) 1923 return (SA_NO_SUCH_RESOURCE); 1924 1925 err = smb_share_rename(oldname, newname); 1926 1927 /* improve error values somewhat */ 1928 switch (err) { 1929 case NERR_Success: 1930 break; 1931 case NERR_InternalError: 1932 ret = SA_SYSTEM_ERR; 1933 break; 1934 case NERR_DuplicateShare: 1935 ret = SA_DUPLICATE_NAME; 1936 break; 1937 default: 1938 ret = SA_CONFIG_ERR; 1939 break; 1940 } 1941 1942 return (ret); 1943 } 1944 1945 static int 1946 smb_build_shareinfo(sa_share_t share, sa_resource_t resource, smb_share_t *si) 1947 { 1948 sa_property_t prop; 1949 sa_optionset_t opts; 1950 char *path; 1951 char *rname; 1952 char *val = NULL; 1953 1954 bzero(si, sizeof (smb_share_t)); 1955 1956 if ((path = sa_get_share_attr(share, "path")) == NULL) 1957 return (SA_NO_SUCH_PATH); 1958 1959 if ((rname = sa_get_resource_attr(resource, "name")) == NULL) { 1960 sa_free_attr_string(path); 1961 return (SA_NO_SUCH_RESOURCE); 1962 } 1963 1964 si->shr_flags = (sa_is_persistent(share)) 1965 ? SMB_SHRF_PERM : SMB_SHRF_TRANS; 1966 1967 (void) strlcpy(si->shr_path, path, sizeof (si->shr_path)); 1968 (void) strlcpy(si->shr_name, rname, sizeof (si->shr_name)); 1969 sa_free_attr_string(path); 1970 sa_free_attr_string(rname); 1971 1972 val = sa_get_resource_description(resource); 1973 if (val == NULL) 1974 val = sa_get_share_description(share); 1975 1976 if (val != NULL) { 1977 (void) strlcpy(si->shr_cmnt, val, sizeof (si->shr_cmnt)); 1978 sa_free_share_description(val); 1979 } 1980 1981 opts = sa_get_derived_optionset(resource, SMB_PROTOCOL_NAME, 1); 1982 if (opts == NULL) 1983 return (SA_OK); 1984 1985 prop = sa_get_property(opts, SHOPT_AD_CONTAINER); 1986 if (prop != NULL) { 1987 if ((val = sa_get_property_attr(prop, "value")) != NULL) { 1988 (void) strlcpy(si->shr_container, val, 1989 sizeof (si->shr_container)); 1990 free(val); 1991 } 1992 } 1993 1994 prop = sa_get_property(opts, SHOPT_CSC); 1995 if (prop != NULL) { 1996 if ((val = sa_get_property_attr(prop, "value")) != NULL) { 1997 smb_csc_option(val, si); 1998 free(val); 1999 } 2000 } 2001 2002 prop = sa_get_property(opts, SHOPT_RO); 2003 if (prop != NULL) { 2004 if ((val = sa_get_property_attr(prop, "value")) != NULL) { 2005 (void) strlcpy(si->shr_access_ro, val, 2006 sizeof (si->shr_access_ro)); 2007 free(val); 2008 si->shr_flags |= SMB_SHRF_ACC_RO; 2009 } 2010 } 2011 2012 prop = sa_get_property(opts, SHOPT_RW); 2013 if (prop != NULL) { 2014 if ((val = sa_get_property_attr(prop, "value")) != NULL) { 2015 (void) strlcpy(si->shr_access_rw, val, 2016 sizeof (si->shr_access_rw)); 2017 free(val); 2018 si->shr_flags |= SMB_SHRF_ACC_RW; 2019 } 2020 } 2021 2022 prop = sa_get_property(opts, SHOPT_NONE); 2023 if (prop != NULL) { 2024 if ((val = sa_get_property_attr(prop, "value")) != NULL) { 2025 (void) strlcpy(si->shr_access_none, val, 2026 sizeof (si->shr_access_none)); 2027 free(val); 2028 si->shr_flags |= SMB_SHRF_ACC_NONE; 2029 } 2030 } 2031 2032 sa_free_derived_optionset(opts); 2033 return (SA_OK); 2034 } 2035 2036 /* 2037 * Map a client-side caching (CSC) option to the appropriate share 2038 * flag. Only one option is allowed; an error will be logged if 2039 * multiple options have been specified. We don't need to do anything 2040 * about multiple values here because the SRVSVC will not recognize 2041 * a value containing multiple flags and will return the default value. 2042 * 2043 * If the option value is not recognized, it will be ignored: invalid 2044 * values will typically be caught and rejected by sharemgr. 2045 */ 2046 static void 2047 smb_csc_option(const char *value, smb_share_t *si) 2048 { 2049 char buf[SMB_CSC_BUFSZ]; 2050 int i; 2051 2052 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 2053 if (strcasecmp(value, cscopt[i].value) == 0) { 2054 si->shr_flags |= cscopt[i].flag; 2055 break; 2056 } 2057 } 2058 2059 switch (si->shr_flags & SMB_SHRF_CSC_MASK) { 2060 case 0: 2061 case SMB_SHRF_CSC_DISABLED: 2062 case SMB_SHRF_CSC_MANUAL: 2063 case SMB_SHRF_CSC_AUTO: 2064 case SMB_SHRF_CSC_VDO: 2065 break; 2066 2067 default: 2068 buf[0] = '\0'; 2069 2070 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 2071 if (si->shr_flags & cscopt[i].flag) { 2072 (void) strlcat(buf, " ", SMB_CSC_BUFSZ); 2073 (void) strlcat(buf, cscopt[i].value, 2074 SMB_CSC_BUFSZ); 2075 } 2076 } 2077 2078 syslog(LOG_ERR, "csc option conflict:%s", buf); 2079 break; 2080 } 2081 } 2082 2083 /* 2084 * Return the option name for the first CSC flag (there should be only 2085 * one) encountered in the share flags. 2086 */ 2087 static char * 2088 smb_csc_name(const smb_share_t *si) 2089 { 2090 int i; 2091 2092 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 2093 if (si->shr_flags & cscopt[i].flag) 2094 return (cscopt[i].value); 2095 } 2096 2097 return (NULL); 2098 } 2099 2100 /* 2101 * smb_get_defaultgrp 2102 * 2103 * If default group for CIFS shares (i.e. "smb") exists 2104 * then it will return the group handle, otherwise it will 2105 * create the group and return the handle. 2106 * 2107 * All the shares created by CIFS clients (this is only possible 2108 * via RPC) will be added to "smb" groups. 2109 */ 2110 static sa_group_t 2111 smb_get_defaultgrp(sa_handle_t handle) 2112 { 2113 sa_group_t group = NULL; 2114 int err; 2115 2116 group = sa_get_group(handle, SMB_DEFAULT_SHARE_GROUP); 2117 if (group != NULL) 2118 return (group); 2119 2120 group = sa_create_group(handle, SMB_DEFAULT_SHARE_GROUP, &err); 2121 if (group == NULL) 2122 return (NULL); 2123 2124 if (sa_create_optionset(group, SMB_DEFAULT_SHARE_GROUP) == NULL) { 2125 (void) sa_remove_group(group); 2126 group = NULL; 2127 } 2128 2129 return (group); 2130 } 2131