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) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright 2017 Nexenta Systems, Inc. All rights reserved. 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 <libscf_priv.h> 48 #include <strings.h> 49 #include "libshare_smb.h" 50 #include <rpcsvc/daemon_utils.h> 51 #include <smbsrv/smb_share.h> 52 #include <smbsrv/smbinfo.h> 53 #include <smbsrv/libsmb.h> 54 #include <libdlpi.h> 55 56 #define SMB_CSC_BUFSZ 64 57 58 #define SMB_VALID_SUB_CHRS "UDhMLmIiSPu" /* substitution characters */ 59 60 /* internal functions */ 61 static int smb_share_init(void); 62 static void smb_share_fini(void); 63 static int smb_enable_share(sa_share_t); 64 static int smb_share_changed(sa_share_t); 65 static int smb_resource_changed(sa_resource_t); 66 static int smb_rename_resource(sa_handle_t, sa_resource_t, char *); 67 static int smb_disable_share(sa_share_t share, char *); 68 static int smb_validate_property(sa_handle_t, sa_property_t, sa_optionset_t); 69 static int smb_set_proto_prop(sa_property_t); 70 static sa_protocol_properties_t smb_get_proto_set(void); 71 static char *smb_get_status(void); 72 static int smb_parse_optstring(sa_group_t, char *); 73 static char *smb_format_options(sa_group_t, int); 74 75 static int smb_enable_service(void); 76 77 static int range_check_validator(int, char *); 78 static int range_check_validator_zero_ok(int, char *); 79 static int string_length_check_validator(int, char *); 80 static int print_enable_validator(int, char *); 81 static int true_false_validator(int, char *); 82 static int ipv4_validator(int, char *); 83 static int hostname_validator(int, char *); 84 static int path_validator(int, char *); 85 static int cmd_validator(int, char *); 86 static int disposition_validator(int, char *); 87 static int protocol_validator(int, char *); 88 static int require_validator(int, char *); 89 90 static int smb_enable_resource(sa_resource_t); 91 static int smb_disable_resource(sa_resource_t); 92 static uint64_t smb_share_features(void); 93 static int smb_list_transient(sa_handle_t); 94 95 static int smb_build_shareinfo(sa_share_t, sa_resource_t, smb_share_t *); 96 static void smb_csc_option(const char *, smb_share_t *); 97 static char *smb_csc_name(const smb_share_t *); 98 static sa_group_t smb_get_defaultgrp(sa_handle_t); 99 static int interface_validator(int, char *); 100 static int smb_update_optionset_props(sa_handle_t, sa_resource_t, nvlist_t *); 101 102 static boolean_t smb_saprop_getbool(sa_optionset_t, char *, boolean_t); 103 static boolean_t smb_saprop_getstr(sa_optionset_t, char *, char *, size_t); 104 105 static struct { 106 char *value; 107 uint32_t flag; 108 } cscopt[] = { 109 { "disabled", SMB_SHRF_CSC_DISABLED }, 110 { "manual", SMB_SHRF_CSC_MANUAL }, 111 { "auto", SMB_SHRF_CSC_AUTO }, 112 { "vdo", SMB_SHRF_CSC_VDO } 113 }; 114 115 /* size of basic format allocation */ 116 #define OPT_CHUNK 1024 117 118 /* size of string for types - big enough to hold "dependency" */ 119 #define SCFTYPE_LEN 32 120 121 /* 122 * Indexes of entries in smb_proto_options table. 123 * Changes to smb_proto_options table may require 124 * an update to these values. 125 */ 126 #define PROTO_OPT_WINS1 6 127 #define PROTO_OPT_WINS_EXCLUDE 8 128 129 typedef struct smb_hostifs_walker { 130 const char *hiw_ifname; 131 boolean_t hiw_matchfound; 132 } smb_hostifs_walker_t; 133 134 135 /* 136 * ops vector that provides the protocol specific info and operations 137 * for share management. 138 */ 139 140 struct sa_plugin_ops sa_plugin_ops = { 141 SA_PLUGIN_VERSION, 142 SMB_PROTOCOL_NAME, 143 smb_share_init, 144 smb_share_fini, 145 smb_enable_share, 146 smb_disable_share, 147 smb_validate_property, 148 NULL, /* valid_space */ 149 NULL, /* security_prop */ 150 smb_parse_optstring, 151 smb_format_options, 152 smb_set_proto_prop, 153 smb_get_proto_set, 154 smb_get_status, 155 NULL, /* space_alias */ 156 NULL, /* update_legacy */ 157 NULL, /* delete_legacy */ 158 smb_share_changed, 159 smb_enable_resource, 160 smb_disable_resource, 161 smb_share_features, 162 smb_list_transient, 163 smb_resource_changed, 164 smb_rename_resource, 165 NULL, /* run_command */ 166 NULL, /* command_help */ 167 NULL /* delete_proto_section */ 168 }; 169 170 struct option_defs optdefs[] = { 171 { SHOPT_AD_CONTAINER, OPT_TYPE_STRING }, 172 { SHOPT_ABE, OPT_TYPE_BOOLEAN }, 173 { SHOPT_NAME, OPT_TYPE_NAME }, 174 { SHOPT_RO, OPT_TYPE_ACCLIST }, 175 { SHOPT_RW, OPT_TYPE_ACCLIST }, 176 { SHOPT_NONE, OPT_TYPE_ACCLIST }, 177 { SHOPT_CATIA, OPT_TYPE_BOOLEAN }, 178 { SHOPT_CSC, OPT_TYPE_CSC }, 179 { SHOPT_GUEST, OPT_TYPE_BOOLEAN }, 180 { SHOPT_DFSROOT, OPT_TYPE_BOOLEAN }, 181 { SHOPT_DESCRIPTION, OPT_TYPE_STRING }, 182 { SHOPT_CA, OPT_TYPE_BOOLEAN }, 183 { SHOPT_FSO, OPT_TYPE_BOOLEAN }, 184 { SHOPT_QUOTAS, OPT_TYPE_BOOLEAN }, 185 { SHOPT_ENCRYPT, OPT_TYPE_STRING }, 186 { NULL, 0 } 187 }; 188 189 /* 190 * findopt(name) 191 * 192 * Lookup option "name" in the option table and return the table 193 * index. 194 */ 195 static int 196 findopt(char *name) 197 { 198 int i; 199 if (name != NULL) { 200 for (i = 0; optdefs[i].tag != NULL; i++) { 201 if (strcmp(optdefs[i].tag, name) == 0) 202 return (i); 203 } 204 } 205 return (-1); 206 } 207 208 /* 209 * is_a_number(number) 210 * 211 * is the string a number in one of the forms we want to use? 212 */ 213 static boolean_t 214 is_a_number(char *number) 215 { 216 boolean_t isnum = B_TRUE; 217 boolean_t ishex = B_FALSE; 218 219 if (number == NULL || *number == '\0') 220 return (B_FALSE); 221 222 if (strncasecmp(number, "0x", 2) == 0) { 223 number += 2; 224 ishex = B_TRUE; 225 } else if (*number == '-') { 226 number++; 227 } 228 229 while (isnum && (*number != '\0')) { 230 isnum = (ishex) ? isxdigit(*number) : isdigit(*number); 231 number++; 232 } 233 234 return (isnum); 235 } 236 237 /* 238 * check ro vs rw values. Over time this may get beefed up. 239 * for now it just does simple checks. 240 */ 241 242 static int 243 check_rorw(char *v1, char *v2) 244 { 245 int ret = SA_OK; 246 if (strcmp(v1, v2) == 0) 247 ret = SA_VALUE_CONFLICT; 248 return (ret); 249 } 250 251 /* 252 * validresource(name) 253 * 254 * Check that name only has valid characters in it. The current valid 255 * set are the printable characters but not including: 256 * " / \ [ ] : | < > + ; , ? * = \t 257 * Note that space is included and there is a maximum length. 258 */ 259 static boolean_t 260 validresource(const char *name) 261 { 262 const char *cp; 263 size_t len; 264 265 if (name == NULL) 266 return (B_FALSE); 267 268 len = strlen(name); 269 if (len == 0 || len > SA_MAX_RESOURCE_NAME) 270 return (B_FALSE); 271 272 if (strpbrk(name, "\"/\\[]:|<>+;,?*=\t") != NULL) { 273 return (B_FALSE); 274 } 275 276 for (cp = name; *cp != '\0'; cp++) 277 if (iscntrl(*cp)) 278 return (B_FALSE); 279 280 return (B_TRUE); 281 } 282 283 /* 284 * Check that the client-side caching (CSC) option value is valid. 285 */ 286 static boolean_t 287 validcsc(const char *value) 288 { 289 int i; 290 291 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 292 if (strcasecmp(value, cscopt[i].value) == 0) 293 return (B_TRUE); 294 } 295 296 return (B_FALSE); 297 } 298 299 /* 300 * smb_isonline() 301 * 302 * Determine if the SMF service instance is in the online state or 303 * not. A number of operations depend on this state. 304 */ 305 static boolean_t 306 smb_isonline(void) 307 { 308 char *str; 309 boolean_t ret = B_FALSE; 310 311 if ((str = smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI)) != NULL) { 312 ret = (strcmp(str, SCF_STATE_STRING_ONLINE) == 0); 313 free(str); 314 } 315 return (ret); 316 } 317 318 /* 319 * smb_isdisabled() 320 * 321 * Determine if the SMF service instance is in the disabled state or 322 * not. A number of operations depend on this state. 323 */ 324 static boolean_t 325 smb_isdisabled(void) 326 { 327 char *str; 328 boolean_t ret = B_FALSE; 329 330 if ((str = smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI)) != NULL) { 331 ret = (strcmp(str, SCF_STATE_STRING_DISABLED) == 0); 332 free(str); 333 } 334 return (ret); 335 } 336 337 /* 338 * smb_isautoenable() 339 * 340 * Determine if the SMF service instance auto_enabled set or not. A 341 * number of operations depend on this state. The property not being 342 * set or being set to true means autoenable. Only being set to false 343 * is not autoenabled. 344 */ 345 static boolean_t 346 smb_isautoenable(void) 347 { 348 boolean_t ret = B_TRUE; 349 scf_simple_prop_t *prop; 350 uint8_t *retstr; 351 352 prop = scf_simple_prop_get(NULL, SMBD_DEFAULT_INSTANCE_FMRI, 353 "application", "auto_enable"); 354 if (prop != NULL) { 355 retstr = scf_simple_prop_next_boolean(prop); 356 ret = *retstr != 0; 357 scf_simple_prop_free(prop); 358 } 359 return (ret); 360 } 361 362 /* 363 * smb_ismaint() 364 * 365 * Determine if the SMF service instance is in the disabled state or 366 * not. A number of operations depend on this state. 367 */ 368 static boolean_t 369 smb_ismaint(void) 370 { 371 char *str; 372 boolean_t ret = B_FALSE; 373 374 if ((str = smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI)) != NULL) { 375 ret = (strcmp(str, SCF_STATE_STRING_MAINT) == 0); 376 free(str); 377 } 378 return (ret); 379 } 380 381 /* 382 * smb_enable_share tells the implementation that it is to enable the share. 383 * This entails converting the path and options into the appropriate ioctl 384 * calls. It is assumed that all error checking of paths, etc. were 385 * done earlier. 386 */ 387 static int 388 smb_enable_share(sa_share_t share) 389 { 390 char *path; 391 smb_share_t si; 392 sa_resource_t resource; 393 boolean_t iszfs; 394 int err = SA_OK; 395 boolean_t online; 396 397 /* 398 * Don't support Trusted Extensions. 399 */ 400 if (is_system_labeled()) { 401 (void) printf(dgettext(TEXT_DOMAIN, 402 "SMB: service not supported with Trusted Extensions\n")); 403 return (SA_NOT_SUPPORTED); 404 } 405 406 /* get the path since it is important in several places */ 407 path = sa_get_share_attr(share, "path"); 408 if (path == NULL) 409 return (SA_NO_SUCH_PATH); 410 411 /* 412 * If administratively disabled, don't try to start anything. 413 */ 414 online = smb_isonline(); 415 if (!online && !smb_isautoenable() && smb_isdisabled()) 416 goto done; 417 418 iszfs = sa_path_is_zfs(path); 419 420 if (!online) { 421 err = smb_enable_service(); 422 if (err != SA_OK) { 423 (void) printf(dgettext(TEXT_DOMAIN, 424 "SMB: Unable to enable service\n")); 425 } else { 426 online = B_TRUE; 427 } 428 } 429 430 /* 431 * Don't bother trying to start shares if the service isn't 432 * running. 433 */ 434 if (!online) 435 goto done; 436 437 /* Each share can have multiple resources */ 438 for (resource = sa_get_share_resource(share, NULL); 439 resource != NULL; 440 resource = sa_get_next_resource(resource)) { 441 err = smb_build_shareinfo(share, resource, &si); 442 if (err != SA_OK) { 443 sa_free_attr_string(path); 444 return (err); 445 } 446 447 if (!iszfs) { 448 err = smb_share_create(&si); 449 } else { 450 share_t sh; 451 452 (void) sa_sharetab_fill_zfs(share, &sh, "smb"); 453 err = sa_share_zfs(share, resource, (char *)path, &sh, 454 &si, ZFS_SHARE_SMB); 455 if (err != SA_OK) { 456 errno = err; 457 err = -1; 458 } 459 sa_emptyshare(&sh); 460 } 461 } 462 if (!iszfs) 463 (void) sa_update_sharetab(share, "smb"); 464 done: 465 sa_free_attr_string(path); 466 467 return (err == NERR_DuplicateShare ? 0 : err); 468 } 469 470 /* 471 * This is the share for CIFS all shares have resource names. 472 * Enable tells the smb server to update its hash. If it fails 473 * because smb server is down, we just ignore as smb server loads 474 * the resources from sharemanager at startup. 475 */ 476 477 static int 478 smb_enable_resource(sa_resource_t resource) 479 { 480 sa_share_t share; 481 smb_share_t si; 482 int ret = SA_OK; 483 int err; 484 boolean_t isonline; 485 486 share = sa_get_resource_parent(resource); 487 if (share == NULL) 488 return (SA_NO_SUCH_PATH); 489 490 /* 491 * If administratively disabled, don't try to start anything. 492 */ 493 isonline = smb_isonline(); 494 if (!isonline && !smb_isautoenable() && smb_isdisabled()) 495 return (SA_OK); 496 497 if (!isonline) { 498 (void) smb_enable_service(); 499 500 if (!smb_isonline()) 501 return (SA_OK); 502 } 503 504 if ((ret = smb_build_shareinfo(share, resource, &si)) != SA_OK) 505 return (ret); 506 507 /* 508 * Attempt to add the share. Any error that occurs if it was 509 * online is an error but don't count NERR_DuplicateName if 510 * smb/server had to be brought online since bringing the 511 * service up will enable the share that was just added prior 512 * to the attempt to enable. 513 */ 514 err = smb_share_create(&si); 515 if (err == NERR_Success || !(!isonline && err == NERR_DuplicateName)) 516 (void) sa_update_sharetab(share, "smb"); 517 else 518 return (SA_NOT_SHARED); 519 520 return (SA_OK); 521 } 522 523 /* 524 * Remove it from smb server hash. 525 */ 526 static int 527 smb_disable_resource(sa_resource_t resource) 528 { 529 char *rname; 530 uint32_t res; 531 sa_share_t share; 532 533 rname = sa_get_resource_attr(resource, "name"); 534 if (rname == NULL) 535 return (SA_NO_SUCH_RESOURCE); 536 537 if (smb_isonline()) { 538 res = smb_share_delete(rname); 539 if (res != NERR_Success && 540 res != NERR_NetNameNotFound) { 541 sa_free_attr_string(rname); 542 return (SA_CONFIG_ERR); 543 } 544 } 545 546 sa_free_attr_string(rname); 547 548 share = sa_get_resource_parent(resource); 549 if (share != NULL) { 550 rname = sa_get_share_attr(share, "path"); 551 if (rname != NULL) { 552 sa_handle_t handle; 553 554 handle = sa_find_group_handle((sa_group_t)resource); 555 (void) sa_delete_sharetab(handle, rname, "smb"); 556 sa_free_attr_string(rname); 557 } 558 } 559 /* 560 * Always return OK as smb/server may be down and 561 * Shares will be picked up when loaded. 562 */ 563 return (SA_OK); 564 } 565 566 /* 567 * smb_share_changed(sa_share_t share) 568 * 569 * The specified share has changed. 570 */ 571 static int 572 smb_share_changed(sa_share_t share) 573 { 574 char *path; 575 sa_resource_t resource; 576 577 if (!smb_isonline()) 578 return (SA_OK); 579 580 /* get the path since it is important in several places */ 581 path = sa_get_share_attr(share, "path"); 582 if (path == NULL) 583 return (SA_NO_SUCH_PATH); 584 585 for (resource = sa_get_share_resource(share, NULL); 586 resource != NULL; 587 resource = sa_get_next_resource(resource)) 588 (void) smb_resource_changed(resource); 589 590 sa_free_attr_string(path); 591 592 return (SA_OK); 593 } 594 595 /* 596 * smb_resource_changed(sa_resource_t resource) 597 * 598 * The specified resource has changed. 599 */ 600 static int 601 smb_resource_changed(sa_resource_t resource) 602 { 603 uint32_t res; 604 sa_share_t share; 605 smb_share_t si; 606 607 if (!smb_isonline()) 608 return (SA_OK); 609 610 if ((share = sa_get_resource_parent(resource)) == NULL) 611 return (SA_CONFIG_ERR); 612 613 if ((res = smb_build_shareinfo(share, resource, &si)) != SA_OK) 614 return (res); 615 616 res = smb_share_modify(&si); 617 618 if (res != NERR_Success) 619 return (SA_CONFIG_ERR); 620 621 return (smb_enable_service()); 622 } 623 624 /* 625 * smb_disable_share(sa_share_t share, char *path) 626 * 627 * Unshare the specified share. Note that "path" is the same 628 * path as what is in the "share" object. It is passed in to avoid an 629 * additional lookup. A missing "path" value makes this a no-op 630 * function. 631 */ 632 static int 633 smb_disable_share(sa_share_t share, char *path) 634 { 635 char *rname; 636 sa_resource_t resource; 637 sa_group_t parent; 638 boolean_t iszfs; 639 int err = SA_OK; 640 int ret = SA_OK; 641 sa_handle_t handle; 642 boolean_t first = B_TRUE; /* work around sharetab issue */ 643 644 if (path == NULL) 645 return (ret); 646 647 /* 648 * If the share is in a ZFS group we need to handle it 649 * differently. Just being on a ZFS file system isn't 650 * enough since we may be in a legacy share case. 651 */ 652 parent = sa_get_parent_group(share); 653 iszfs = sa_group_is_zfs(parent); 654 655 if (!smb_isonline()) 656 goto done; 657 658 for (resource = sa_get_share_resource(share, NULL); 659 resource != NULL; 660 resource = sa_get_next_resource(resource)) { 661 rname = sa_get_resource_attr(resource, "name"); 662 if (rname == NULL) { 663 continue; 664 } 665 if (!iszfs) { 666 err = smb_share_delete(rname); 667 switch (err) { 668 case NERR_NetNameNotFound: 669 case NERR_Success: 670 err = SA_OK; 671 break; 672 default: 673 err = SA_CONFIG_ERR; 674 break; 675 } 676 } else { 677 share_t sh; 678 679 (void) sa_sharetab_fill_zfs(share, &sh, "smb"); 680 err = sa_share_zfs(share, resource, (char *)path, &sh, 681 rname, ZFS_UNSHARE_SMB); 682 if (err != SA_OK) { 683 switch (err) { 684 case EINVAL: 685 case ENOENT: 686 err = SA_OK; 687 break; 688 default: 689 /* 690 * If we are no longer the first case, 691 * we don't care about the sa_share_zfs 692 * err if it is -1. This works around 693 * a problem in sharefs and should be 694 * removed when sharefs supports 695 * multiple entries per path. 696 */ 697 if (!first) 698 err = SA_OK; 699 else 700 err = SA_SYSTEM_ERR; 701 break; 702 } 703 } 704 705 first = B_FALSE; 706 707 sa_emptyshare(&sh); 708 } 709 710 if (err != SA_OK) 711 ret = err; 712 sa_free_attr_string(rname); 713 } 714 done: 715 if (!iszfs) { 716 handle = sa_find_group_handle((sa_group_t)share); 717 if (handle != NULL) 718 (void) sa_delete_sharetab(handle, path, "smb"); 719 else 720 ret = SA_SYSTEM_ERR; 721 } 722 return (ret); 723 } 724 725 /* 726 * smb_validate_property(handle, property, parent) 727 * 728 * Check that the property has a legitimate value for its type. 729 * Handle isn't currently used but may need to be in the future. 730 */ 731 732 /*ARGSUSED*/ 733 static int 734 smb_validate_property(sa_handle_t handle, sa_property_t property, 735 sa_optionset_t parent) 736 { 737 int ret = SA_OK; 738 char *propname; 739 int optindex; 740 sa_group_t parent_group; 741 char *value; 742 char *other; 743 744 propname = sa_get_property_attr(property, "type"); 745 746 if ((optindex = findopt(propname)) < 0) 747 ret = SA_NO_SUCH_PROP; 748 749 /* need to validate value range here as well */ 750 if (ret == SA_OK) { 751 parent_group = sa_get_parent_group((sa_share_t)parent); 752 if (optdefs[optindex].share && !sa_is_share(parent_group)) 753 ret = SA_PROP_SHARE_ONLY; 754 } 755 if (ret != SA_OK) { 756 if (propname != NULL) 757 sa_free_attr_string(propname); 758 return (ret); 759 } 760 761 value = sa_get_property_attr(property, "value"); 762 if (value != NULL) { 763 /* first basic type checking */ 764 switch (optdefs[optindex].type) { 765 case OPT_TYPE_NUMBER: 766 /* check that the value is all digits */ 767 if (!is_a_number(value)) 768 ret = SA_BAD_VALUE; 769 break; 770 case OPT_TYPE_BOOLEAN: 771 ret = true_false_validator(0, value); 772 break; 773 case OPT_TYPE_NAME: 774 /* 775 * Make sure no invalid characters 776 */ 777 if (!validresource(value)) 778 ret = SA_BAD_VALUE; 779 break; 780 case OPT_TYPE_STRING: 781 /* whatever is here should be ok */ 782 break; 783 case OPT_TYPE_CSC: 784 if (!validcsc(value)) 785 ret = SA_BAD_VALUE; 786 break; 787 case OPT_TYPE_ACCLIST: { 788 sa_property_t oprop; 789 char *ovalue; 790 /* 791 * access list handling. Should eventually 792 * validate that all the values make sense. 793 * Also, ro and rw may have cross value 794 * conflicts. 795 */ 796 if (parent == NULL) 797 break; 798 if (strcmp(propname, SHOPT_RO) == 0) 799 other = SHOPT_RW; 800 else if (strcmp(propname, SHOPT_RW) == 0) 801 other = SHOPT_RO; 802 else 803 other = NULL; 804 if (other == NULL) 805 break; 806 807 /* compare rw(ro) with ro(rw) */ 808 oprop = sa_get_property(parent, other); 809 if (oprop == NULL) 810 break; 811 /* 812 * only potential 813 * confusion if other 814 * exists 815 */ 816 ovalue = sa_get_property_attr(oprop, "value"); 817 if (ovalue != NULL) { 818 ret = check_rorw(value, ovalue); 819 sa_free_attr_string(ovalue); 820 } 821 break; 822 } 823 default: 824 break; 825 } 826 } 827 828 if (value != NULL) 829 sa_free_attr_string(value); 830 if (ret == SA_OK && optdefs[optindex].check != NULL) 831 /* do the property specific check */ 832 ret = optdefs[optindex].check(property); 833 834 if (propname != NULL) 835 sa_free_attr_string(propname); 836 return (ret); 837 } 838 839 /* 840 * Protocol management functions 841 * 842 * properties defined in the default files are defined in 843 * proto_option_defs for parsing and validation. 844 */ 845 846 struct smb_proto_option_defs { 847 int smb_index; 848 int32_t minval; 849 int32_t maxval; /* In case of length of string this should be max */ 850 int (*validator)(int, char *); 851 int32_t refresh; 852 } smb_proto_options[] = { 853 { SMB_CI_SYS_CMNT, 0, MAX_VALUE_BUFLEN, 854 string_length_check_validator, SMB_REFRESH_REFRESH }, 855 { SMB_CI_MAX_WORKERS, SMB_PI_MAX_WORKERS_MIN, SMB_PI_MAX_WORKERS_MAX, 856 range_check_validator, SMB_REFRESH_REFRESH }, 857 { SMB_CI_NETBIOS_ENABLE, 0, 0, true_false_validator, 858 SMB_REFRESH_REFRESH }, 859 { SMB_CI_NBSCOPE, 0, MAX_VALUE_BUFLEN, 860 string_length_check_validator, 0 }, 861 { SMB_CI_LM_LEVEL, 2, 5, range_check_validator, 0 }, 862 { SMB_CI_KEEPALIVE, 20, 5400, range_check_validator_zero_ok, 863 SMB_REFRESH_REFRESH }, 864 { SMB_CI_WINS_SRV1, 0, MAX_VALUE_BUFLEN, 865 ipv4_validator, SMB_REFRESH_REFRESH }, 866 { SMB_CI_WINS_SRV2, 0, MAX_VALUE_BUFLEN, 867 ipv4_validator, SMB_REFRESH_REFRESH }, 868 { SMB_CI_WINS_EXCL, 0, MAX_VALUE_BUFLEN, 869 interface_validator, SMB_REFRESH_REFRESH }, 870 { SMB_CI_SIGNING_ENABLE, 0, 0, true_false_validator, 871 SMB_REFRESH_REFRESH }, 872 { SMB_CI_SIGNING_REQD, 0, 0, true_false_validator, 873 SMB_REFRESH_REFRESH }, 874 { SMB_CI_RESTRICT_ANON, 0, 0, true_false_validator, 875 SMB_REFRESH_REFRESH }, 876 { SMB_CI_DOMAIN_SRV, 0, MAX_VALUE_BUFLEN, 877 hostname_validator, SMB_REFRESH_REFRESH }, 878 { SMB_CI_ADS_SITE, 0, MAX_VALUE_BUFLEN, 879 string_length_check_validator, SMB_REFRESH_REFRESH }, 880 { SMB_CI_DYNDNS_ENABLE, 0, 0, true_false_validator, 0 }, 881 { SMB_CI_AUTOHOME_MAP, 0, MAX_VALUE_BUFLEN, path_validator, 0 }, 882 { SMB_CI_IPV6_ENABLE, 0, 0, true_false_validator, 883 SMB_REFRESH_REFRESH }, 884 { SMB_CI_PRINT_ENABLE, 0, 0, print_enable_validator, 885 SMB_REFRESH_REFRESH }, 886 { SMB_CI_TRAVERSE_MOUNTS, 0, 0, true_false_validator, 887 SMB_REFRESH_REFRESH }, 888 { SMB_CI_MAP, 0, MAX_VALUE_BUFLEN, cmd_validator, SMB_REFRESH_REFRESH }, 889 { SMB_CI_UNMAP, 0, MAX_VALUE_BUFLEN, cmd_validator, 890 SMB_REFRESH_REFRESH }, 891 { SMB_CI_DISPOSITION, 0, MAX_VALUE_BUFLEN, 892 disposition_validator, SMB_REFRESH_REFRESH }, 893 { SMB_CI_MIN_PROTOCOL, 0, MAX_VALUE_BUFLEN, protocol_validator, 894 SMB_REFRESH_REFRESH }, 895 { SMB_CI_MAX_PROTOCOL, 0, MAX_VALUE_BUFLEN, protocol_validator, 896 SMB_REFRESH_REFRESH }, 897 { SMB_CI_ENCRYPT, 0, MAX_VALUE_BUFLEN, require_validator, 898 SMB_REFRESH_REFRESH }, 899 { SMB_CI_BYPASS_TRAVERSE_CHECKING, 0, 0, true_false_validator, 900 SMB_REFRESH_REFRESH }, 901 { SMB_CI_OPLOCK_ENABLE, 0, 0, true_false_validator, 902 SMB_REFRESH_REFRESH }, 903 }; 904 905 #define SMB_OPT_NUM \ 906 (sizeof (smb_proto_options) / sizeof (smb_proto_options[0])) 907 908 static int 909 require_validator(int index, char *value) 910 { 911 if (string_length_check_validator(index, value) != SA_OK) 912 return (SA_BAD_VALUE); 913 914 if (strcmp(value, "required") == 0) 915 return (SA_OK); 916 917 if (strcmp(value, "disabled") == 0) 918 return (SA_OK); 919 920 if (strcmp(value, "enabled") == 0) 921 return (SA_OK); 922 923 return (SA_BAD_VALUE); 924 } 925 926 /* 927 * Check the range of value as int range. 928 */ 929 static int 930 range_check_validator(int index, char *value) 931 { 932 int ret = SA_OK; 933 934 if (!is_a_number(value)) { 935 ret = SA_BAD_VALUE; 936 } else { 937 int val; 938 val = strtoul(value, NULL, 0); 939 if (val < smb_proto_options[index].minval || 940 val > smb_proto_options[index].maxval) 941 ret = SA_BAD_VALUE; 942 } 943 return (ret); 944 } 945 946 /* 947 * Check the range of value as int range. 948 */ 949 static int 950 range_check_validator_zero_ok(int index, char *value) 951 { 952 int ret = SA_OK; 953 954 if (!is_a_number(value)) { 955 ret = SA_BAD_VALUE; 956 } else { 957 int val; 958 val = strtoul(value, NULL, 0); 959 if (val == 0) 960 ret = SA_OK; 961 else { 962 if (val < smb_proto_options[index].minval || 963 val > smb_proto_options[index].maxval) 964 ret = SA_BAD_VALUE; 965 } 966 } 967 return (ret); 968 } 969 970 /* 971 * Check the length of the string 972 */ 973 static int 974 string_length_check_validator(int index, char *value) 975 { 976 int ret = SA_OK; 977 978 if (value == NULL) 979 return (SA_BAD_VALUE); 980 if (strlen(value) > smb_proto_options[index].maxval) 981 ret = SA_BAD_VALUE; 982 return (ret); 983 } 984 985 /* 986 * Check yes/no 987 */ 988 /*ARGSUSED*/ 989 static int 990 true_false_validator(int index, char *value) 991 { 992 if (value == NULL) 993 return (SA_BAD_VALUE); 994 if ((strcasecmp(value, "true") == 0) || 995 (strcasecmp(value, "false") == 0)) 996 return (SA_OK); 997 return (SA_BAD_VALUE); 998 } 999 1000 /* 1001 * If printing support is compiled in, this is the same as: 1002 * true_false_validator. Otherwise, only allow false. 1003 */ 1004 /*ARGSUSED*/ 1005 static int 1006 print_enable_validator(int index, char *value) 1007 { 1008 if (value == NULL) 1009 return (SA_BAD_VALUE); 1010 1011 #ifdef HAVE_CUPS 1012 if (strcasecmp(value, "true") == 0) 1013 return (SA_OK); 1014 #endif 1015 if (strcasecmp(value, "false") == 0) 1016 return (SA_OK); 1017 1018 return (SA_BAD_VALUE); 1019 } 1020 1021 /* 1022 * Check IP v4 address. 1023 */ 1024 /*ARGSUSED*/ 1025 static int 1026 ipv4_validator(int index, char *value) 1027 { 1028 char sbytes[16]; 1029 1030 if (value == NULL) 1031 return (SA_OK); 1032 1033 if (strlen(value) == 0) 1034 return (SA_OK); 1035 1036 if (inet_pton(AF_INET, value, (void *)sbytes) != 1) 1037 return (SA_BAD_VALUE); 1038 1039 return (SA_OK); 1040 } 1041 1042 /* 1043 * Check that the specified name is an IP address (v4 or v6) or a hostname. 1044 * Per RFC 1035 and 1123, names may contain alphanumeric characters, hyphens 1045 * and dots. The first and last character of a label must be alphanumeric. 1046 * Interior characters may be alphanumeric or hypens. 1047 * 1048 * Domain names should not contain underscores but we allow them because 1049 * Windows names are often in non-compliance with this rule. 1050 */ 1051 /*ARGSUSED*/ 1052 static int 1053 hostname_validator(int index, char *value) 1054 { 1055 char sbytes[INET6_ADDRSTRLEN]; 1056 boolean_t new_label = B_TRUE; 1057 char *p; 1058 char label_terminator; 1059 int len; 1060 1061 if (value == NULL) 1062 return (SA_OK); 1063 1064 if ((len = strlen(value)) == 0) 1065 return (SA_OK); 1066 1067 if (inet_pton(AF_INET, value, (void *)sbytes) == 1) 1068 return (SA_OK); 1069 1070 if (inet_pton(AF_INET6, value, (void *)sbytes) == 1) 1071 return (SA_OK); 1072 1073 if (len >= MAXHOSTNAMELEN) 1074 return (SA_BAD_VALUE); 1075 1076 if (strspn(value, "0123456789.") == len) 1077 return (SA_BAD_VALUE); 1078 1079 label_terminator = *value; 1080 1081 for (p = value; *p != '\0'; ++p) { 1082 if (new_label) { 1083 if (!isalnum(*p)) 1084 return (SA_BAD_VALUE); 1085 new_label = B_FALSE; 1086 label_terminator = *p; 1087 continue; 1088 } 1089 1090 if (*p == '.') { 1091 if (!isalnum(label_terminator)) 1092 return (SA_BAD_VALUE); 1093 new_label = B_TRUE; 1094 label_terminator = *p; 1095 continue; 1096 } 1097 1098 label_terminator = *p; 1099 1100 if (isalnum(*p) || *p == '-' || *p == '_') 1101 continue; 1102 1103 return (SA_BAD_VALUE); 1104 } 1105 1106 if (!isalnum(label_terminator)) 1107 return (SA_BAD_VALUE); 1108 1109 return (SA_OK); 1110 } 1111 1112 /* 1113 * Call back function for dlpi_walk. 1114 * Returns TRUE if interface name exists on the host. 1115 */ 1116 static boolean_t 1117 smb_get_interface(const char *ifname, void *arg) 1118 { 1119 smb_hostifs_walker_t *iterp = arg; 1120 1121 iterp->hiw_matchfound = (strcmp(ifname, iterp->hiw_ifname) == 0); 1122 1123 return (iterp->hiw_matchfound); 1124 } 1125 1126 /* 1127 * Checks to see if the input interface exists on the host. 1128 * Returns B_TRUE if the match is found, B_FALSE otherwise. 1129 */ 1130 static boolean_t 1131 smb_validate_interface(const char *ifname) 1132 { 1133 smb_hostifs_walker_t iter; 1134 1135 if ((ifname == NULL) || (*ifname == '\0')) 1136 return (B_FALSE); 1137 1138 iter.hiw_ifname = ifname; 1139 iter.hiw_matchfound = B_FALSE; 1140 dlpi_walk(smb_get_interface, &iter, 0); 1141 1142 return (iter.hiw_matchfound); 1143 } 1144 1145 /* 1146 * Check valid interfaces. Interface names value can be NULL or empty. 1147 * Returns SA_BAD_VALUE if interface cannot be found on the host. 1148 */ 1149 /*ARGSUSED*/ 1150 static int 1151 interface_validator(int index, char *value) 1152 { 1153 char buf[16]; 1154 int ret = SA_OK; 1155 char *ifname, *tmp, *p; 1156 1157 if (value == NULL || *value == '\0') 1158 return (ret); 1159 1160 if (strlen(value) > MAX_VALUE_BUFLEN) 1161 return (SA_BAD_VALUE); 1162 1163 if ((p = strdup(value)) == NULL) 1164 return (SA_NO_MEMORY); 1165 1166 tmp = p; 1167 while ((ifname = strsep(&tmp, ",")) != NULL) { 1168 if (*ifname == '\0') { 1169 ret = SA_BAD_VALUE; 1170 break; 1171 } 1172 1173 if (!smb_validate_interface(ifname)) { 1174 if (inet_pton(AF_INET, ifname, (void *)buf) == 0) { 1175 ret = SA_BAD_VALUE; 1176 break; 1177 } 1178 } 1179 } 1180 1181 free(p); 1182 return (ret); 1183 } 1184 1185 /* 1186 * Check path 1187 */ 1188 /*ARGSUSED*/ 1189 static int 1190 path_validator(int index, char *path) 1191 { 1192 struct stat buffer; 1193 int fd, status; 1194 1195 if (path == NULL) 1196 return (SA_BAD_VALUE); 1197 1198 fd = open(path, O_RDONLY); 1199 if (fd < 0) 1200 return (SA_BAD_VALUE); 1201 1202 status = fstat(fd, &buffer); 1203 (void) close(fd); 1204 1205 if (status < 0) 1206 return (SA_BAD_VALUE); 1207 1208 if (buffer.st_mode & S_IFDIR) 1209 return (SA_OK); 1210 return (SA_BAD_VALUE); 1211 } 1212 1213 /* 1214 * the protoset holds the defined options so we don't have to read 1215 * them multiple times 1216 */ 1217 static sa_protocol_properties_t protoset; 1218 1219 static int 1220 findprotoopt(char *name) 1221 { 1222 int i; 1223 char *sc_name; 1224 1225 for (i = 0; i < SMB_OPT_NUM; i++) { 1226 sc_name = smb_config_getname(smb_proto_options[i].smb_index); 1227 if (strcasecmp(sc_name, name) == 0) 1228 return (i); 1229 } 1230 1231 return (-1); 1232 } 1233 1234 /* 1235 * smb_load_proto_properties() 1236 * 1237 * read the smb config values from SMF. 1238 */ 1239 1240 static int 1241 smb_load_proto_properties() 1242 { 1243 sa_property_t prop; 1244 char value[MAX_VALUE_BUFLEN]; 1245 char *name; 1246 int index; 1247 int ret = SA_OK; 1248 int rc; 1249 1250 protoset = sa_create_protocol_properties(SMB_PROTOCOL_NAME); 1251 if (protoset == NULL) 1252 return (SA_NO_MEMORY); 1253 1254 for (index = 0; index < SMB_OPT_NUM && ret == SA_OK; index++) { 1255 rc = smb_config_get(smb_proto_options[index].smb_index, 1256 value, sizeof (value)); 1257 if (rc != SMBD_SMF_OK) 1258 continue; 1259 name = smb_config_getname(smb_proto_options[index].smb_index); 1260 prop = sa_create_property(name, value); 1261 if (prop != NULL) 1262 ret = sa_add_protocol_property(protoset, prop); 1263 else 1264 ret = SA_NO_MEMORY; 1265 } 1266 return (ret); 1267 } 1268 1269 /* 1270 * smb_share_init() 1271 * 1272 * Initialize the smb plugin. 1273 */ 1274 1275 static int 1276 smb_share_init(void) 1277 { 1278 if (sa_plugin_ops.sa_init != smb_share_init) 1279 return (SA_SYSTEM_ERR); 1280 1281 smb_share_door_clnt_init(); 1282 return (smb_load_proto_properties()); 1283 } 1284 1285 /* 1286 * smb_share_fini() 1287 * 1288 */ 1289 static void 1290 smb_share_fini(void) 1291 { 1292 xmlFreeNode(protoset); 1293 protoset = NULL; 1294 1295 smb_share_door_clnt_fini(); 1296 } 1297 1298 /* 1299 * smb_get_proto_set() 1300 * 1301 * Return an optionset with all the protocol specific properties in 1302 * it. 1303 */ 1304 static sa_protocol_properties_t 1305 smb_get_proto_set(void) 1306 { 1307 return (protoset); 1308 } 1309 1310 /* 1311 * smb_enable_dependencies() 1312 * 1313 * SMBD_DEFAULT_INSTANCE_FMRI may have some dependencies that aren't 1314 * enabled. This will attempt to enable all of them. 1315 */ 1316 static void 1317 smb_enable_dependencies(const char *fmri) 1318 { 1319 scf_handle_t *handle; 1320 scf_service_t *service; 1321 scf_instance_t *inst = NULL; 1322 scf_iter_t *iter; 1323 scf_property_t *prop; 1324 scf_value_t *value; 1325 scf_propertygroup_t *pg; 1326 scf_scope_t *scope; 1327 char type[SCFTYPE_LEN]; 1328 char *dependency; 1329 char *servname; 1330 int maxlen; 1331 1332 /* 1333 * Get all required handles and storage. 1334 */ 1335 handle = scf_handle_create(SCF_VERSION); 1336 if (handle == NULL) 1337 return; 1338 1339 if (scf_handle_bind(handle) != 0) { 1340 scf_handle_destroy(handle); 1341 return; 1342 } 1343 1344 maxlen = scf_limit(SCF_LIMIT_MAX_VALUE_LENGTH); 1345 if (maxlen == (ssize_t)-1) 1346 maxlen = MAXPATHLEN; 1347 1348 dependency = malloc(maxlen); 1349 1350 service = scf_service_create(handle); 1351 1352 iter = scf_iter_create(handle); 1353 1354 pg = scf_pg_create(handle); 1355 1356 prop = scf_property_create(handle); 1357 1358 value = scf_value_create(handle); 1359 1360 scope = scf_scope_create(handle); 1361 1362 if (service == NULL || iter == NULL || pg == NULL || prop == NULL || 1363 value == NULL || scope == NULL || dependency == NULL) 1364 goto done; 1365 1366 /* 1367 * We passed in the FMRI for the default instance but for 1368 * some things we need the simple form so construct it. Since 1369 * we reuse the storage that dependency points to, we need to 1370 * use the servname early. 1371 */ 1372 (void) snprintf(dependency, maxlen, "%s", fmri + sizeof ("svc:")); 1373 servname = strrchr(dependency, ':'); 1374 if (servname == NULL) 1375 goto done; 1376 *servname = '\0'; 1377 servname = dependency; 1378 1379 /* 1380 * Setup to iterate over the service property groups, only 1381 * looking at those that are "dependency" types. The "entity" 1382 * property will have the FMRI of the service we are dependent 1383 * on. 1384 */ 1385 if (scf_handle_get_scope(handle, SCF_SCOPE_LOCAL, scope) != 0) 1386 goto done; 1387 1388 if (scf_scope_get_service(scope, servname, service) != 0) 1389 goto done; 1390 1391 if (scf_iter_service_pgs(iter, service) != 0) 1392 goto done; 1393 1394 while (scf_iter_next_pg(iter, pg) > 0) { 1395 char *services[2]; 1396 /* 1397 * Have a property group for the service. See if it is 1398 * a dependency pg and only do operations on those. 1399 */ 1400 if (scf_pg_get_type(pg, type, SCFTYPE_LEN) <= 0) 1401 continue; 1402 1403 if (strncmp(type, SCF_GROUP_DEPENDENCY, SCFTYPE_LEN) != 0) 1404 continue; 1405 /* 1406 * Have a dependency. Attempt to enable it. 1407 */ 1408 if (scf_pg_get_property(pg, SCF_PROPERTY_ENTITIES, prop) != 0) 1409 continue; 1410 1411 if (scf_property_get_value(prop, value) != 0) 1412 continue; 1413 1414 services[1] = NULL; 1415 1416 if (scf_value_get_as_string(value, dependency, maxlen) > 0) { 1417 services[0] = dependency; 1418 _check_services(services); 1419 } 1420 } 1421 1422 done: 1423 if (dependency != NULL) 1424 free(dependency); 1425 if (value != NULL) 1426 scf_value_destroy(value); 1427 if (prop != NULL) 1428 scf_property_destroy(prop); 1429 if (pg != NULL) 1430 scf_pg_destroy(pg); 1431 if (iter != NULL) 1432 scf_iter_destroy(iter); 1433 if (scope != NULL) 1434 scf_scope_destroy(scope); 1435 if (inst != NULL) 1436 scf_instance_destroy(inst); 1437 if (service != NULL) 1438 scf_service_destroy(service); 1439 1440 (void) scf_handle_unbind(handle); 1441 scf_handle_destroy(handle); 1442 } 1443 1444 /* 1445 * How long to wait for service to come online 1446 */ 1447 #define WAIT_FOR_SERVICE 15 1448 1449 /* 1450 * smb_enable_service() 1451 * 1452 */ 1453 static int 1454 smb_enable_service(void) 1455 { 1456 int i; 1457 int ret = SA_OK; 1458 char *service[] = { SMBD_DEFAULT_INSTANCE_FMRI, NULL }; 1459 1460 if (!smb_isonline()) { 1461 /* 1462 * Attempt to start the idmap, and other dependent 1463 * services, first. If it fails, the SMB service will 1464 * ultimately fail so we use that as the error. If we 1465 * don't try to enable idmap, smb won't start the 1466 * first time unless the admin has done it 1467 * manually. The service could be administratively 1468 * disabled so we won't always get started. 1469 */ 1470 smb_enable_dependencies(SMBD_DEFAULT_INSTANCE_FMRI); 1471 _check_services(service); 1472 1473 /* Wait for service to come online */ 1474 for (i = 0; i < WAIT_FOR_SERVICE; i++) { 1475 if (smb_isonline()) { 1476 ret = SA_OK; 1477 break; 1478 } else if (smb_ismaint()) { 1479 /* maintenance requires help */ 1480 ret = SA_SYSTEM_ERR; 1481 break; 1482 } else { 1483 /* try another time */ 1484 ret = SA_BUSY; 1485 (void) sleep(1); 1486 } 1487 } 1488 } 1489 return (ret); 1490 } 1491 1492 /* 1493 * smb_set_proto_prop(prop) 1494 * 1495 * check that prop is valid. 1496 */ 1497 /*ARGSUSED*/ 1498 static int 1499 smb_set_proto_prop(sa_property_t prop) 1500 { 1501 int ret = SA_OK; 1502 char *name; 1503 char *value; 1504 int index = -1; 1505 struct smb_proto_option_defs *opt; 1506 1507 name = sa_get_property_attr(prop, "type"); 1508 value = sa_get_property_attr(prop, "value"); 1509 if (name == NULL || value == NULL) { 1510 ret = SA_NO_SUCH_PROP; 1511 goto out; 1512 } 1513 1514 index = findprotoopt(name); 1515 if (index < 0) { 1516 ret = SA_NO_SUCH_PROP; 1517 goto out; 1518 } 1519 opt = &smb_proto_options[index]; 1520 1521 /* 1522 * When setting max_protocol or min_protocol, 1523 * allow"3.1.1" as an alias for "3.11". 1524 */ 1525 if (opt->smb_index == SMB_CI_MAX_PROTOCOL || 1526 opt->smb_index == SMB_CI_MIN_PROTOCOL) 1527 if (strcmp(value, "3.1.1") == 0) 1528 strcpy(value, "3.11"); 1529 1530 /* Test for valid value */ 1531 if (opt->validator != NULL && 1532 (ret = opt->validator(index, value)) != SA_OK) 1533 goto out; 1534 1535 /* Save to SMF */ 1536 if (smb_config_set(opt->smb_index, value) != 0) { 1537 ret = SA_BAD_VALUE; 1538 goto out; 1539 } 1540 1541 /* 1542 * Specialized refresh mechanisms can 1543 * be flagged in the proto_options and 1544 * processed here. 1545 */ 1546 if (opt->refresh & SMB_REFRESH_REFRESH) 1547 (void) smf_refresh_instance( 1548 SMBD_DEFAULT_INSTANCE_FMRI); 1549 else if (opt->refresh & SMB_REFRESH_RESTART) 1550 (void) smf_restart_instance( 1551 SMBD_DEFAULT_INSTANCE_FMRI); 1552 1553 out: 1554 if (name != NULL) 1555 sa_free_attr_string(name); 1556 if (value != NULL) 1557 sa_free_attr_string(value); 1558 1559 return (ret); 1560 } 1561 1562 /* 1563 * smb_get_status() 1564 * 1565 * What is the current status of the smbd? We use the SMF state here. 1566 * Caller must free the returned value. 1567 */ 1568 1569 static char * 1570 smb_get_status(void) 1571 { 1572 return (smf_get_state(SMBD_DEFAULT_INSTANCE_FMRI)); 1573 } 1574 1575 /* 1576 * This protocol plugin require resource names 1577 */ 1578 static uint64_t 1579 smb_share_features(void) 1580 { 1581 return (SA_FEATURE_RESOURCE | SA_FEATURE_ALLOWSUBDIRS | 1582 SA_FEATURE_ALLOWPARDIRS | SA_FEATURE_SERVER); 1583 } 1584 1585 /* 1586 * This should be used to convert smb_share_t to sa_resource_t 1587 * Should only be needed to build transient shares/resources to be 1588 * supplied to sharemgr to display. 1589 */ 1590 static int 1591 smb_add_transient(sa_handle_t handle, smb_share_t *si) 1592 { 1593 int err; 1594 sa_share_t share; 1595 sa_group_t group; 1596 sa_resource_t resource; 1597 nvlist_t *nvl; 1598 char *opt; 1599 1600 if (si == NULL) 1601 return (SA_INVALID_NAME); 1602 1603 if ((share = sa_find_share(handle, si->shr_path)) == NULL) { 1604 if ((group = smb_get_defaultgrp(handle)) == NULL) 1605 return (SA_NO_SUCH_GROUP); 1606 1607 share = sa_get_share(group, si->shr_path); 1608 if (share == NULL) { 1609 share = sa_add_share(group, si->shr_path, 1610 SA_SHARE_TRANSIENT, &err); 1611 if (share == NULL) 1612 return (SA_NO_SUCH_PATH); 1613 } 1614 } 1615 1616 /* 1617 * Now handle the resource. Make sure that the resource is 1618 * transient and added to the share. 1619 */ 1620 resource = sa_get_share_resource(share, si->shr_name); 1621 if (resource == NULL) { 1622 resource = sa_add_resource(share, 1623 si->shr_name, SA_SHARE_TRANSIENT, &err); 1624 if (resource == NULL) 1625 return (SA_NO_SUCH_RESOURCE); 1626 } 1627 1628 if (si->shr_cmnt[0] != '\0') 1629 (void) sa_set_resource_description(resource, si->shr_cmnt); 1630 1631 if (si->shr_container[0] != '\0') 1632 (void) sa_set_resource_attr(resource, SHOPT_AD_CONTAINER, 1633 si->shr_container); 1634 1635 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 1636 return (SA_NO_MEMORY); 1637 1638 if ((opt = smb_csc_name(si)) != NULL) 1639 err |= nvlist_add_string(nvl, SHOPT_CSC, opt); 1640 1641 opt = (si->shr_flags & SMB_SHRF_ABE) ? "true" : "false"; 1642 err |= nvlist_add_string(nvl, SHOPT_ABE, opt); 1643 1644 if ((si->shr_flags & SMB_SHRF_AUTOHOME) == 0) { 1645 opt = (si->shr_flags & SMB_SHRF_GUEST_OK) ? "true" : "false"; 1646 err |= nvlist_add_string(nvl, SHOPT_GUEST, opt); 1647 } 1648 1649 if (si->shr_access_ro[0] != '\0') 1650 err |= nvlist_add_string(nvl, SHOPT_RO, si->shr_access_ro); 1651 1652 if (si->shr_access_rw[0] != '\0') 1653 err |= nvlist_add_string(nvl, SHOPT_RW, si->shr_access_rw); 1654 1655 if (si->shr_access_none[0] != '\0') 1656 err |= nvlist_add_string(nvl, SHOPT_NONE, si->shr_access_none); 1657 1658 if (err) { 1659 nvlist_free(nvl); 1660 return (SA_CONFIG_ERR); 1661 } 1662 1663 err = smb_update_optionset_props(handle, resource, nvl); 1664 1665 nvlist_free(nvl); 1666 return (err); 1667 } 1668 1669 /* 1670 * Return smb transient shares. 1671 */ 1672 static int 1673 smb_list_transient(sa_handle_t handle) 1674 { 1675 int i, offset; 1676 smb_shrlist_t list; 1677 int res; 1678 1679 if (smb_share_count() <= 0) 1680 return (SA_OK); 1681 1682 offset = 0; 1683 while (smb_share_list(offset, &list) == NERR_Success) { 1684 if (list.sl_cnt == 0) 1685 break; 1686 1687 for (i = 0; i < list.sl_cnt; i++) { 1688 res = smb_add_transient(handle, &(list.sl_shares[i])); 1689 if (res != SA_OK) 1690 return (res); 1691 } 1692 offset += list.sl_cnt; 1693 } 1694 1695 return (SA_OK); 1696 } 1697 1698 /* 1699 * fix_resource_name(share, name, prefix) 1700 * 1701 * Construct a name where the ZFS dataset has the prefix replaced with "name". 1702 */ 1703 static char * 1704 fix_resource_name(sa_share_t share, char *name, char *prefix) 1705 { 1706 char buf[SA_MAX_RESOURCE_NAME + 1]; 1707 char *dataset; 1708 size_t bufsz = SA_MAX_RESOURCE_NAME + 1; 1709 size_t prelen; 1710 1711 if (prefix == NULL) 1712 return (strdup(name)); 1713 1714 dataset = sa_get_share_attr(share, "dataset"); 1715 if (dataset == NULL) 1716 return (strdup(name)); 1717 1718 (void) strlcpy(buf, name, bufsz); 1719 prelen = strlen(prefix); 1720 1721 if (strncmp(dataset, prefix, prelen) == 0) 1722 (void) strlcat(buf, dataset + prelen, bufsz); 1723 1724 sa_free_attr_string(dataset); 1725 sa_fix_resource_name(buf); 1726 return (strdup(buf)); 1727 } 1728 1729 /* 1730 * smb_parse_optstring(group, options) 1731 * 1732 * parse a compact option string into individual options. This allows 1733 * ZFS sharesmb and sharemgr "share" command to work. group can be a 1734 * group, a share or a resource. 1735 */ 1736 static int 1737 smb_parse_optstring(sa_group_t group, char *options) 1738 { 1739 char *dup; 1740 char *base; 1741 char *lasts; 1742 char *token; 1743 sa_optionset_t optionset; 1744 sa_group_t parent = NULL; 1745 sa_resource_t resource = NULL; 1746 int iszfs = 0; 1747 int persist = 0; 1748 int need_optionset = 0; 1749 int ret = SA_OK; 1750 sa_property_t prop; 1751 1752 /* 1753 * In order to not attempt to change ZFS properties unless 1754 * absolutely necessary, we never do it in the legacy parsing 1755 * so we need to keep track of this. 1756 */ 1757 if (sa_is_share(group)) { 1758 char *zfs; 1759 1760 parent = sa_get_parent_group(group); 1761 if (parent != NULL) { 1762 zfs = sa_get_group_attr(parent, "zfs"); 1763 if (zfs != NULL) { 1764 sa_free_attr_string(zfs); 1765 iszfs = 1; 1766 } 1767 } 1768 } else { 1769 iszfs = sa_group_is_zfs(group); 1770 /* 1771 * If a ZFS group, then we need to see if a resource 1772 * name is being set. If so, bail with 1773 * SA_PROP_SHARE_ONLY, so we come back in with a share 1774 * instead of a group. 1775 */ 1776 if (iszfs || 1777 strncmp(options, "name=", sizeof ("name=") - 1) == 0 || 1778 strstr(options, ",name=") != NULL) { 1779 return (SA_PROP_SHARE_ONLY); 1780 } 1781 } 1782 1783 /* do we have an existing optionset? */ 1784 optionset = sa_get_optionset(group, "smb"); 1785 if (optionset == NULL) { 1786 /* didn't find existing optionset so create one */ 1787 optionset = sa_create_optionset(group, "smb"); 1788 if (optionset == NULL) 1789 return (SA_NO_MEMORY); 1790 } else { 1791 /* 1792 * If an optionset already exists, we've come through 1793 * twice so ignore the second time. 1794 */ 1795 return (ret); 1796 } 1797 1798 /* We need a copy of options for the next part. */ 1799 dup = strdup(options); 1800 if (dup == NULL) 1801 return (SA_NO_MEMORY); 1802 1803 /* 1804 * SMB properties are straightforward and are strings, 1805 * integers or booleans. Properties are separated by 1806 * commas. It will be necessary to parse quotes due to some 1807 * strings not having a restricted characters set. 1808 * 1809 * Note that names will create a resource. For now, if there 1810 * is a set of properties "before" the first name="", those 1811 * properties will be placed on the group. 1812 */ 1813 persist = sa_is_persistent(group); 1814 base = dup; 1815 token = dup; 1816 lasts = NULL; 1817 while (token != NULL && ret == SA_OK) { 1818 ret = SA_OK; 1819 token = strtok_r(base, ",", &lasts); 1820 base = NULL; 1821 if (token != NULL) { 1822 char *value; 1823 /* 1824 * All SMB properties have values so there 1825 * MUST be an '=' character. If it doesn't, 1826 * it is a syntax error. 1827 */ 1828 value = strchr(token, '='); 1829 if (value != NULL) { 1830 *value++ = '\0'; 1831 } else { 1832 ret = SA_SYNTAX_ERR; 1833 break; 1834 } 1835 /* 1836 * We may need to handle a "name" property 1837 * that is a ZFS imposed resource name. Each 1838 * name would trigger getting a new "resource" 1839 * to put properties on. For now, assume no 1840 * "name" property for special handling. 1841 */ 1842 1843 if (strcmp(token, SHOPT_NAME) == 0) { 1844 char *prefix; 1845 char *name = NULL; 1846 /* 1847 * We have a name, so now work on the 1848 * resource level. We have a "share" 1849 * in "group" due to the caller having 1850 * added it. If we are called with a 1851 * group, the check for group/share 1852 * at the beginning of this function 1853 * will bail out the parse if there is a 1854 * "name" but no share. 1855 */ 1856 if (!iszfs) { 1857 ret = SA_SYNTAX_ERR; 1858 break; 1859 } 1860 /* 1861 * Make sure the parent group has the 1862 * "prefix" property since we will 1863 * need to use this for constructing 1864 * inherited name= values. 1865 */ 1866 prefix = sa_get_group_attr(parent, "prefix"); 1867 if (prefix == NULL) { 1868 prefix = sa_get_group_attr(parent, 1869 "name"); 1870 if (prefix != NULL) { 1871 (void) sa_set_group_attr(parent, 1872 "prefix", prefix); 1873 } 1874 } 1875 name = fix_resource_name((sa_share_t)group, 1876 value, prefix); 1877 if (name != NULL) { 1878 resource = sa_add_resource( 1879 (sa_share_t)group, name, 1880 SA_SHARE_TRANSIENT, &ret); 1881 sa_free_attr_string(name); 1882 } else { 1883 ret = SA_NO_MEMORY; 1884 } 1885 if (prefix != NULL) 1886 sa_free_attr_string(prefix); 1887 1888 /* A resource level optionset is needed */ 1889 1890 need_optionset = 1; 1891 if (resource == NULL) { 1892 ret = SA_NO_MEMORY; 1893 break; 1894 } 1895 continue; 1896 } 1897 1898 if (iszfs && strcmp(token, SHOPT_DESCRIPTION) == 0) { 1899 if (resource == NULL) 1900 (void) sa_set_share_description( 1901 (sa_share_t)group, value); 1902 else 1903 (void) sa_set_resource_description( 1904 resource, value); 1905 continue; 1906 } 1907 1908 if (need_optionset) { 1909 optionset = sa_create_optionset(resource, 1910 "smb"); 1911 need_optionset = 0; 1912 } 1913 1914 prop = sa_create_property(token, value); 1915 if (prop == NULL) 1916 ret = SA_NO_MEMORY; 1917 else 1918 ret = sa_add_property(optionset, prop); 1919 if (ret != SA_OK) 1920 break; 1921 if (!iszfs) 1922 ret = sa_commit_properties(optionset, !persist); 1923 } 1924 } 1925 free(dup); 1926 return (ret); 1927 } 1928 1929 /* 1930 * smb_sprint_option(rbuff, rbuffsize, incr, prop, sep) 1931 * 1932 * provides a mechanism to format SMB properties into legacy output 1933 * format. If the buffer would overflow, it is reallocated and grown 1934 * as appropriate. Special cases of converting internal form of values 1935 * to those used by "share" are done. this function does one property 1936 * at a time. 1937 */ 1938 1939 static void 1940 smb_sprint_option(char **rbuff, size_t *rbuffsize, size_t incr, 1941 sa_property_t prop, int sep) 1942 { 1943 char *name; 1944 char *value; 1945 int curlen; 1946 char *buff = *rbuff; 1947 size_t buffsize = *rbuffsize; 1948 1949 name = sa_get_property_attr(prop, "type"); 1950 value = sa_get_property_attr(prop, "value"); 1951 if (buff != NULL) 1952 curlen = strlen(buff); 1953 else 1954 curlen = 0; 1955 if (name != NULL) { 1956 int len; 1957 len = strlen(name) + sep; 1958 1959 /* 1960 * A future RFE would be to replace this with more 1961 * generic code and to possibly handle more types. 1962 * 1963 * For now, everything else is treated as a string. If 1964 * we get any properties that aren't exactly 1965 * name/value pairs, we may need to 1966 * interpret/transform. 1967 */ 1968 if (value != NULL) 1969 len += 1 + strlen(value); 1970 1971 while (buffsize <= (curlen + len)) { 1972 /* need more room */ 1973 buffsize += incr; 1974 buff = realloc(buff, buffsize); 1975 *rbuff = buff; 1976 *rbuffsize = buffsize; 1977 if (buff == NULL) { 1978 /* realloc failed so free everything */ 1979 if (*rbuff != NULL) 1980 free(*rbuff); 1981 goto err; 1982 } 1983 } 1984 if (buff == NULL) 1985 goto err; 1986 (void) snprintf(buff + curlen, buffsize - curlen, 1987 "%s%s=%s", sep ? "," : "", 1988 name, value != NULL ? value : "\"\""); 1989 1990 } 1991 err: 1992 if (name != NULL) 1993 sa_free_attr_string(name); 1994 if (value != NULL) 1995 sa_free_attr_string(value); 1996 } 1997 1998 /* 1999 * smb_format_resource_options(resource, hier) 2000 * 2001 * format all the options on the group into a flattened option 2002 * string. If hier is non-zero, walk up the tree to get inherited 2003 * options. 2004 */ 2005 2006 static char * 2007 smb_format_options(sa_group_t group, int hier) 2008 { 2009 sa_optionset_t options = NULL; 2010 sa_property_t prop; 2011 int sep = 0; 2012 char *buff; 2013 size_t buffsize; 2014 2015 2016 buff = malloc(OPT_CHUNK); 2017 if (buff == NULL) 2018 return (NULL); 2019 2020 buff[0] = '\0'; 2021 buffsize = OPT_CHUNK; 2022 2023 /* 2024 * We may have a an optionset relative to this item. format 2025 * these if we find them and then add any security definitions. 2026 */ 2027 2028 options = sa_get_derived_optionset(group, "smb", hier); 2029 2030 /* 2031 * do the default set first but skip any option that is also 2032 * in the protocol specific optionset. 2033 */ 2034 if (options != NULL) { 2035 for (prop = sa_get_property(options, NULL); 2036 prop != NULL; prop = sa_get_next_property(prop)) { 2037 /* 2038 * use this one since we skipped any 2039 * of these that were also in 2040 * optdefault 2041 */ 2042 smb_sprint_option(&buff, &buffsize, OPT_CHUNK, 2043 prop, sep); 2044 if (buff == NULL) { 2045 /* 2046 * buff could become NULL if there 2047 * isn't enough memory for 2048 * smb_sprint_option to realloc() 2049 * as necessary. We can't really 2050 * do anything about it at this 2051 * point so we return NULL. The 2052 * caller should handle the 2053 * failure. 2054 */ 2055 if (options != NULL) 2056 sa_free_derived_optionset( 2057 options); 2058 return (buff); 2059 } 2060 sep = 1; 2061 } 2062 } 2063 2064 if (options != NULL) 2065 sa_free_derived_optionset(options); 2066 return (buff); 2067 } 2068 2069 /* 2070 * smb_rename_resource(resource, newname) 2071 * 2072 * Change the current exported name of the resource to newname. 2073 */ 2074 /*ARGSUSED*/ 2075 int 2076 smb_rename_resource(sa_handle_t handle, sa_resource_t resource, char *newname) 2077 { 2078 int ret = SA_OK; 2079 int err; 2080 char *oldname; 2081 2082 if (!smb_isonline()) 2083 return (SA_OK); 2084 2085 oldname = sa_get_resource_attr(resource, "name"); 2086 if (oldname == NULL) 2087 return (SA_NO_SUCH_RESOURCE); 2088 2089 err = smb_share_rename(oldname, newname); 2090 2091 sa_free_attr_string(oldname); 2092 2093 /* improve error values somewhat */ 2094 switch (err) { 2095 case NERR_Success: 2096 break; 2097 case NERR_InternalError: 2098 ret = SA_SYSTEM_ERR; 2099 break; 2100 case NERR_DuplicateShare: 2101 ret = SA_DUPLICATE_NAME; 2102 break; 2103 default: 2104 ret = SA_CONFIG_ERR; 2105 break; 2106 } 2107 2108 return (ret); 2109 } 2110 2111 static int 2112 smb_build_shareinfo(sa_share_t share, sa_resource_t resource, smb_share_t *si) 2113 { 2114 sa_optionset_t opts; 2115 char *path; 2116 char *rname; 2117 char *val = NULL; 2118 char csc_value[SMB_CSC_BUFSZ]; 2119 char strbuf[sizeof ("required")]; 2120 2121 bzero(si, sizeof (smb_share_t)); 2122 2123 if ((path = sa_get_share_attr(share, "path")) == NULL) 2124 return (SA_NO_SUCH_PATH); 2125 2126 if ((rname = sa_get_resource_attr(resource, "name")) == NULL) { 2127 sa_free_attr_string(path); 2128 return (SA_NO_SUCH_RESOURCE); 2129 } 2130 2131 (void) strlcpy(si->shr_path, path, sizeof (si->shr_path)); 2132 (void) strlcpy(si->shr_name, rname, sizeof (si->shr_name)); 2133 sa_free_attr_string(path); 2134 sa_free_attr_string(rname); 2135 2136 val = sa_get_resource_description(resource); 2137 if (val == NULL) 2138 val = sa_get_share_description(share); 2139 2140 if (val != NULL) { 2141 (void) strlcpy(si->shr_cmnt, val, sizeof (si->shr_cmnt)); 2142 sa_free_share_description(val); 2143 } 2144 2145 si->shr_flags = (sa_is_persistent(share)) 2146 ? SMB_SHRF_PERM : SMB_SHRF_TRANS; 2147 2148 opts = sa_get_derived_optionset(resource, SMB_PROTOCOL_NAME, 1); 2149 if (opts == NULL) 2150 return (SA_OK); 2151 2152 if (smb_saprop_getbool(opts, SHOPT_CATIA, B_FALSE)) 2153 si->shr_flags |= SMB_SHRF_CATIA; 2154 2155 if (smb_saprop_getbool(opts, SHOPT_ABE, B_FALSE)) 2156 si->shr_flags |= SMB_SHRF_ABE; 2157 2158 if (smb_saprop_getbool(opts, SHOPT_GUEST, B_FALSE)) 2159 si->shr_flags |= SMB_SHRF_GUEST_OK; 2160 2161 if (smb_saprop_getbool(opts, SHOPT_DFSROOT, B_FALSE)) 2162 si->shr_flags |= SMB_SHRF_DFSROOT; 2163 2164 if (smb_saprop_getbool(opts, SHOPT_CA, B_FALSE)) 2165 si->shr_flags |= SMB_SHRF_CA; 2166 2167 if (smb_saprop_getbool(opts, SHOPT_FSO, B_FALSE)) 2168 si->shr_flags |= SMB_SHRF_FSO; 2169 2170 /* Quotas are enabled by default. */ 2171 if (smb_saprop_getbool(opts, SHOPT_QUOTAS, B_TRUE)) 2172 si->shr_flags |= SMB_SHRF_QUOTAS; 2173 2174 if (smb_saprop_getstr(opts, SHOPT_ENCRYPT, strbuf, sizeof (strbuf))) 2175 smb_cfg_set_require(strbuf, &si->shr_encrypt); 2176 2177 (void) smb_saprop_getstr(opts, SHOPT_AD_CONTAINER, si->shr_container, 2178 sizeof (si->shr_container)); 2179 2180 if (smb_saprop_getstr(opts, SHOPT_CSC, csc_value, sizeof (csc_value))) 2181 smb_csc_option(csc_value, si); 2182 2183 if (smb_saprop_getstr(opts, SHOPT_RO, si->shr_access_ro, 2184 sizeof (si->shr_access_ro))) 2185 si->shr_flags |= SMB_SHRF_ACC_RO; 2186 2187 if (smb_saprop_getstr(opts, SHOPT_RW, si->shr_access_rw, 2188 sizeof (si->shr_access_rw))) 2189 si->shr_flags |= SMB_SHRF_ACC_RW; 2190 2191 if (smb_saprop_getstr(opts, SHOPT_NONE, si->shr_access_none, 2192 sizeof (si->shr_access_none))) 2193 si->shr_flags |= SMB_SHRF_ACC_NONE; 2194 2195 sa_free_derived_optionset(opts); 2196 return (SA_OK); 2197 } 2198 2199 /* 2200 * Map a client-side caching (CSC) option to the appropriate share 2201 * flag. Only one option is allowed; an error will be logged if 2202 * multiple options have been specified. We don't need to do anything 2203 * about multiple values here because the SRVSVC will not recognize 2204 * a value containing multiple flags and will return the default value. 2205 * 2206 * If the option value is not recognized, it will be ignored: invalid 2207 * values will typically be caught and rejected by sharemgr. 2208 */ 2209 static void 2210 smb_csc_option(const char *value, smb_share_t *si) 2211 { 2212 char buf[SMB_CSC_BUFSZ]; 2213 int i; 2214 2215 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 2216 if (strcasecmp(value, cscopt[i].value) == 0) { 2217 si->shr_flags |= cscopt[i].flag; 2218 break; 2219 } 2220 } 2221 2222 switch (si->shr_flags & SMB_SHRF_CSC_MASK) { 2223 case 0: 2224 case SMB_SHRF_CSC_DISABLED: 2225 case SMB_SHRF_CSC_MANUAL: 2226 case SMB_SHRF_CSC_AUTO: 2227 case SMB_SHRF_CSC_VDO: 2228 break; 2229 2230 default: 2231 buf[0] = '\0'; 2232 2233 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 2234 if (si->shr_flags & cscopt[i].flag) { 2235 (void) strlcat(buf, " ", SMB_CSC_BUFSZ); 2236 (void) strlcat(buf, cscopt[i].value, 2237 SMB_CSC_BUFSZ); 2238 } 2239 } 2240 2241 syslog(LOG_ERR, "csc option conflict:%s", buf); 2242 break; 2243 } 2244 } 2245 2246 /* 2247 * Return the option name for the first CSC flag (there should be only 2248 * one) encountered in the share flags. 2249 */ 2250 static char * 2251 smb_csc_name(const smb_share_t *si) 2252 { 2253 int i; 2254 2255 for (i = 0; i < (sizeof (cscopt) / sizeof (cscopt[0])); ++i) { 2256 if (si->shr_flags & cscopt[i].flag) 2257 return (cscopt[i].value); 2258 } 2259 2260 return (NULL); 2261 } 2262 2263 /* 2264 * smb_get_defaultgrp 2265 * 2266 * If default group for CIFS shares (i.e. "smb") exists 2267 * then it will return the group handle, otherwise it will 2268 * create the group and return the handle. 2269 * 2270 * All the shares created by CIFS clients (this is only possible 2271 * via RPC) will be added to "smb" groups. 2272 */ 2273 static sa_group_t 2274 smb_get_defaultgrp(sa_handle_t handle) 2275 { 2276 sa_group_t group = NULL; 2277 int err; 2278 2279 group = sa_get_group(handle, SMB_DEFAULT_SHARE_GROUP); 2280 if (group != NULL) 2281 return (group); 2282 2283 group = sa_create_group(handle, SMB_DEFAULT_SHARE_GROUP, &err); 2284 if (group == NULL) 2285 return (NULL); 2286 2287 if (sa_create_optionset(group, SMB_DEFAULT_SHARE_GROUP) == NULL) { 2288 (void) sa_remove_group(group); 2289 group = NULL; 2290 } 2291 2292 return (group); 2293 } 2294 2295 /* 2296 * Checks to see if the command args are the supported substitution specifier. 2297 * i.e. <cmd> %U %S 2298 */ 2299 static int 2300 cmd_validator(int index, char *value) 2301 { 2302 char cmd[MAXPATHLEN]; 2303 char *ptr, *v; 2304 boolean_t skip_cmdname; 2305 2306 if (string_length_check_validator(index, value) != SA_OK) 2307 return (SA_BAD_VALUE); 2308 2309 if (*value == '\0') 2310 return (SA_OK); 2311 2312 (void) strlcpy(cmd, value, sizeof (cmd)); 2313 2314 ptr = cmd; 2315 skip_cmdname = B_TRUE; 2316 do { 2317 if ((v = strsep(&ptr, " ")) == NULL) 2318 break; 2319 2320 if (*v != '\0') { 2321 2322 if (skip_cmdname) { 2323 skip_cmdname = B_FALSE; 2324 continue; 2325 } 2326 2327 if ((strlen(v) != 2) || *v != '%') 2328 return (SA_BAD_VALUE); 2329 2330 if (strpbrk(v, SMB_VALID_SUB_CHRS) == NULL) 2331 return (SA_BAD_VALUE); 2332 } 2333 2334 } while (v != NULL); 2335 2336 /* 2337 * If skip_cmdname is still true then the string contains 2338 * only spaces. Don't allow such a string. 2339 */ 2340 if (skip_cmdname) 2341 return (SA_BAD_VALUE); 2342 2343 return (SA_OK); 2344 } 2345 2346 /*ARGSUSED*/ 2347 static int 2348 disposition_validator(int index, char *value) 2349 { 2350 if (value == NULL) 2351 return (SA_BAD_VALUE); 2352 2353 if (*value == '\0') 2354 return (SA_OK); 2355 2356 if ((strcasecmp(value, SMB_EXEC_DISP_CONTINUE) == 0) || 2357 (strcasecmp(value, SMB_EXEC_DISP_TERMINATE) == 0)) 2358 return (SA_OK); 2359 2360 return (SA_BAD_VALUE); 2361 } 2362 2363 static int 2364 protocol_validator(int index, char *value) 2365 { 2366 struct smb_proto_option_defs *opt; 2367 smb_cfg_val_t encrypt; 2368 uint32_t max; 2369 uint32_t min; 2370 uint32_t val; 2371 2372 if (value == NULL) 2373 return (SA_BAD_VALUE); 2374 2375 /* Allow setting back to empty (use defaults) */ 2376 if (*value == '\0') 2377 return (SA_OK); 2378 2379 val = smb_convert_version_str(value); 2380 if (val == 0) 2381 return (SA_BAD_VALUE); 2382 2383 /* 2384 * We don't want people who care enough about protecting their data 2385 * by requiring encryption to accidentally expose their data by 2386 * lowering the max protocol, so prevent them from going below 3.0 2387 * if encryption is required. 2388 * Also, ensure that max_protocol >= min_protocol. 2389 */ 2390 opt = &smb_proto_options[index]; 2391 switch (opt->smb_index) { 2392 2393 case SMB_CI_MAX_PROTOCOL: 2394 2395 encrypt = smb_config_get_require(SMB_CI_ENCRYPT); 2396 if (encrypt == SMB_CONFIG_REQUIRED && val < SMB_VERS_3_0) { 2397 syslog(LOG_ERR, "Cannot set smbd/max_protocol below 3.0" 2398 " while smbd/encrypt == required."); 2399 return (SA_VALUE_CONFLICT); 2400 } 2401 min = smb_config_get_min_protocol(); 2402 if (val < min) { 2403 syslog(LOG_ERR, "Cannot set smbd/max_protocol to less" 2404 " than smbd/min_protocol."); 2405 return (SA_VALUE_CONFLICT); 2406 } 2407 break; 2408 2409 case SMB_CI_MIN_PROTOCOL: 2410 2411 max = smb_config_get_max_protocol(); 2412 if (val > max) { 2413 syslog(LOG_ERR, "Cannot set smbd/min_protocol to more" 2414 " than smbd/max_protocol."); 2415 return (SA_VALUE_CONFLICT); 2416 } 2417 break; 2418 2419 default: 2420 syslog(LOG_ERR, "Unexpected smb protocol validator index %d", 2421 opt->smb_index); 2422 return (SA_BAD_VALUE); 2423 } 2424 2425 return (SA_OK); 2426 } 2427 2428 /* 2429 * Updates the optionset properties of the share resource. 2430 * The properties are given as a list of name-value pair. 2431 * The name argument should be the optionset property name and the value 2432 * should be a valid value for the specified property. 2433 * 2434 * When calling this function for permanent shares, the caller must also 2435 * call sa_commit_properties() to commit the changes to SMF. 2436 */ 2437 static int 2438 smb_update_optionset_props(sa_handle_t handle, sa_resource_t resource, 2439 nvlist_t *nvl) 2440 { 2441 sa_property_t prop; 2442 sa_optionset_t opts; 2443 int err = SA_OK; 2444 nvpair_t *cur; 2445 char *name, *val; 2446 2447 if ((opts = sa_get_optionset(resource, SMB_PROTOCOL_NAME)) == NULL) { 2448 opts = sa_create_optionset(resource, SMB_PROTOCOL_NAME); 2449 if (opts == NULL) 2450 return (SA_CONFIG_ERR); 2451 } 2452 2453 cur = nvlist_next_nvpair(nvl, NULL); 2454 while (cur != NULL) { 2455 name = nvpair_name(cur); 2456 err = nvpair_value_string(cur, &val); 2457 if ((err != 0) || (name == NULL) || (val == NULL)) { 2458 err = SA_CONFIG_ERR; 2459 break; 2460 } 2461 2462 prop = NULL; 2463 if ((prop = sa_get_property(opts, name)) == NULL) { 2464 prop = sa_create_property(name, val); 2465 if (prop != NULL) { 2466 err = sa_valid_property(handle, opts, 2467 SMB_PROTOCOL_NAME, prop); 2468 if (err != SA_OK) { 2469 (void) sa_remove_property(prop); 2470 break; 2471 } 2472 } 2473 err = sa_add_property(opts, prop); 2474 if (err != SA_OK) 2475 break; 2476 } else { 2477 err = sa_update_property(prop, val); 2478 if (err != SA_OK) 2479 break; 2480 } 2481 2482 cur = nvlist_next_nvpair(nvl, cur); 2483 } 2484 2485 return (err); 2486 } 2487 2488 static boolean_t 2489 smb_saprop_getbool(sa_optionset_t opts, char *propname, boolean_t def) 2490 { 2491 sa_property_t prop; 2492 char *val; 2493 boolean_t ret = def; 2494 2495 prop = sa_get_property(opts, propname); 2496 if ((val = sa_get_property_attr(prop, "value")) != NULL) { 2497 if (def) { 2498 /* Default is true, ret false if... */ 2499 if ((strcasecmp(val, "false") == 0) || 2500 (strcmp(val, "0") == 0)) 2501 ret = B_FALSE; 2502 } else { 2503 /* Default is false, ret true if... */ 2504 if ((strcasecmp(val, "true") == 0) || 2505 (strcmp(val, "1") == 0)) 2506 ret = B_TRUE; 2507 } 2508 free(val); 2509 } 2510 2511 return (ret); 2512 } 2513 2514 static boolean_t 2515 smb_saprop_getstr(sa_optionset_t opts, char *propname, char *buf, size_t bufsz) 2516 { 2517 sa_property_t prop; 2518 char *val; 2519 2520 prop = sa_get_property(opts, propname); 2521 if ((val = sa_get_property_attr(prop, "value")) != NULL) { 2522 (void) strlcpy(buf, val, bufsz); 2523 free(val); 2524 return (B_TRUE); 2525 } 2526 2527 return (B_FALSE); 2528 } 2529