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 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2015 Nexenta Systems, Inc. All rights reserved. 24 */ 25 26 #include <sys/types.h> 27 #include <sys/sockio.h> 28 #include <sys/socket.h> 29 #include <sys/utsname.h> 30 31 #include <stdarg.h> 32 #include <unistd.h> 33 #include <stdlib.h> 34 #include <time.h> 35 #include <synch.h> 36 #include <syslog.h> 37 #include <string.h> 38 #include <strings.h> 39 #include <errno.h> 40 #include <net/if.h> 41 #include <netdb.h> 42 #include <netinet/in.h> 43 #include <arpa/nameser.h> 44 #include <resolv.h> 45 46 #include <smbsrv/smbinfo.h> 47 #include <smbsrv/netbios.h> 48 #include <smbsrv/libsmb.h> 49 #include <assert.h> 50 51 static mutex_t seqnum_mtx; 52 53 /* 54 * IPC connection information that may be passed to the SMB Redirector. 55 */ 56 typedef struct { 57 char user[SMB_USERNAME_MAXLEN]; 58 uint8_t passwd[SMBAUTH_HASH_SZ]; 59 } smb_ipc_t; 60 61 static smb_ipc_t ipc_info; 62 static smb_ipc_t ipc_orig_info; 63 static rwlock_t smb_ipc_lock; 64 65 /* 66 * These three parameters are all related: 67 * skc_initial_credits 68 * skc_maximum_credits 69 * skc_maxworkers (max worker threads) 70 * They must be in non-decreasing order. Get the values in order: 71 * maxworkers, maximum_credits, initial_credits 72 * enforcing maximum values and relations as we go. Then in the 73 * opposite order check minimum values and relations. 74 * 75 * smb_config_getnum puts a zero in the &citem if it fails getting 76 * the parameter value. When fetch parameters for which zero is OK, 77 * the return code is intentionally ignored. 78 */ 79 void 80 smb_load_kconfig(smb_kmod_cfg_t *kcfg) 81 { 82 struct utsname uts; 83 int64_t citem; 84 int rc; 85 86 bzero(kcfg, sizeof (smb_kmod_cfg_t)); 87 88 /* 89 * skc_maxworkers (max. no. of taskq worker threads) 90 */ 91 rc = smb_config_getnum(SMB_CI_MAX_WORKERS, &citem); 92 if (rc != SMBD_SMF_OK) 93 citem = SMB_PI_MAX_WORKERS_DEF; 94 if (citem > SMB_PI_MAX_WORKERS_MAX) 95 citem = SMB_PI_MAX_WORKERS_MAX; 96 kcfg->skc_maxworkers = (uint32_t)citem; 97 98 /* 99 * The largest number of credits we let a single client have. 100 * It never makes sense for this to be > max_workers 101 */ 102 rc = smb_config_getnum(SMB_CI_MAXIMUM_CREDITS, &citem); 103 if (rc != SMBD_SMF_OK) 104 citem = SMB_PI_MAXIMUM_CREDITS_DEF; 105 if (citem > SMB_PI_MAXIMUM_CREDITS_MAX) 106 citem = SMB_PI_MAXIMUM_CREDITS_MAX; 107 kcfg->skc_maximum_credits = (uint16_t)citem; 108 if (kcfg->skc_maximum_credits > kcfg->skc_maxworkers) 109 kcfg->skc_maximum_credits = (uint16_t)kcfg->skc_maxworkers; 110 111 /* 112 * The number of credits we give a client initially. 113 * Should be enough for a "light" workload, as the 114 * client will request additional credits when the 115 * workload increases. Must be <= maximum_credits. 116 */ 117 rc = smb_config_getnum(SMB_CI_INITIAL_CREDITS, &citem); 118 if (rc != SMBD_SMF_OK) 119 citem = SMB_PI_INITIAL_CREDITS_DEF; 120 if (citem > SMB_PI_INITIAL_CREDITS_MAX) 121 citem = SMB_PI_INITIAL_CREDITS_MAX; 122 kcfg->skc_initial_credits = (uint16_t)citem; 123 if (kcfg->skc_initial_credits > kcfg->skc_maximum_credits) 124 kcfg->skc_initial_credits = kcfg->skc_maximum_credits; 125 126 /* 127 * Now enforce minimums, smaller to larger. 128 */ 129 if (kcfg->skc_initial_credits < SMB_PI_INITIAL_CREDITS_MIN) 130 kcfg->skc_initial_credits = SMB_PI_INITIAL_CREDITS_MIN; 131 132 if (kcfg->skc_maximum_credits < SMB_PI_MAXIMUM_CREDITS_MIN) 133 kcfg->skc_maximum_credits = SMB_PI_MAXIMUM_CREDITS_MIN; 134 if (kcfg->skc_maximum_credits < kcfg->skc_initial_credits) 135 kcfg->skc_maximum_credits = kcfg->skc_initial_credits; 136 137 if (kcfg->skc_maxworkers < SMB_PI_MAX_WORKERS_MIN) 138 kcfg->skc_maxworkers = SMB_PI_MAX_WORKERS_MIN; 139 if (kcfg->skc_maxworkers < kcfg->skc_maximum_credits) 140 kcfg->skc_maxworkers = kcfg->skc_maximum_credits; 141 142 (void) smb_config_getnum(SMB_CI_KEEPALIVE, &citem); 143 kcfg->skc_keepalive = (uint32_t)citem; 144 if ((kcfg->skc_keepalive != 0) && 145 (kcfg->skc_keepalive < SMB_PI_KEEP_ALIVE_MIN)) 146 kcfg->skc_keepalive = SMB_PI_KEEP_ALIVE_MIN; 147 148 (void) smb_config_getnum(SMB_CI_MAX_CONNECTIONS, &citem); 149 kcfg->skc_maxconnections = (uint32_t)citem; 150 kcfg->skc_restrict_anon = smb_config_getbool(SMB_CI_RESTRICT_ANON); 151 kcfg->skc_signing_enable = smb_config_getbool(SMB_CI_SIGNING_ENABLE); 152 kcfg->skc_signing_required = smb_config_getbool(SMB_CI_SIGNING_REQD); 153 kcfg->skc_netbios_enable = smb_config_getbool(SMB_CI_NETBIOS_ENABLE); 154 kcfg->skc_ipv6_enable = smb_config_getbool(SMB_CI_IPV6_ENABLE); 155 kcfg->skc_print_enable = smb_config_getbool(SMB_CI_PRINT_ENABLE); 156 kcfg->skc_oplock_enable = smb_config_getbool(SMB_CI_OPLOCK_ENABLE); 157 kcfg->skc_sync_enable = smb_config_getbool(SMB_CI_SYNC_ENABLE); 158 kcfg->skc_traverse_mounts = smb_config_getbool(SMB_CI_TRAVERSE_MOUNTS); 159 kcfg->skc_max_protocol = smb_config_get_max_protocol(); 160 kcfg->skc_secmode = smb_config_get_secmode(); 161 162 (void) smb_getdomainname(kcfg->skc_nbdomain, 163 sizeof (kcfg->skc_nbdomain)); 164 (void) smb_getfqdomainname(kcfg->skc_fqdn, 165 sizeof (kcfg->skc_fqdn)); 166 (void) smb_getnetbiosname(kcfg->skc_hostname, 167 sizeof (kcfg->skc_hostname)); 168 (void) smb_config_getstr(SMB_CI_SYS_CMNT, kcfg->skc_system_comment, 169 sizeof (kcfg->skc_system_comment)); 170 smb_config_get_version(&kcfg->skc_version); 171 kcfg->skc_execflags = smb_config_get_execinfo(NULL, NULL, 0); 172 if (smb_config_get_localuuid(kcfg->skc_machine_uuid) < 0) { 173 syslog(LOG_ERR, "smb_load_kconfig: no machine_uuid"); 174 uuid_generate_time(kcfg->skc_machine_uuid); 175 } 176 /* skc_negtok, skc_negtok_len: see smbd_authsvc.c */ 177 178 (void) uname(&uts); 179 (void) snprintf(kcfg->skc_native_os, sizeof (kcfg->skc_native_os), 180 "%s %s %s", uts.sysname, uts.release, uts.version); 181 182 (void) strlcpy(kcfg->skc_native_lm, "Native SMB service", 183 sizeof (kcfg->skc_native_lm)); 184 } 185 186 /* 187 * Get the current system NetBIOS name. The hostname is truncated at 188 * the first `.` or 15 bytes, whichever occurs first, and converted 189 * to uppercase (by smb_gethostname). Text that appears after the 190 * first '.' is considered to be part of the NetBIOS scope. 191 * 192 * Returns 0 on success, otherwise -1 to indicate an error. 193 */ 194 int 195 smb_getnetbiosname(char *buf, size_t buflen) 196 { 197 if (smb_gethostname(buf, buflen, SMB_CASE_UPPER) != 0) 198 return (-1); 199 200 if (buflen >= NETBIOS_NAME_SZ) 201 buf[NETBIOS_NAME_SZ - 1] = '\0'; 202 203 return (0); 204 } 205 206 /* 207 * Get the SAM account of the current system. 208 * Returns 0 on success, otherwise, -1 to indicate an error. 209 */ 210 int 211 smb_getsamaccount(char *buf, size_t buflen) 212 { 213 if (smb_getnetbiosname(buf, buflen - 1) != 0) 214 return (-1); 215 216 (void) strlcat(buf, "$", buflen); 217 return (0); 218 } 219 220 /* 221 * Get the current system node name. The returned name is guaranteed 222 * to be null-terminated (gethostname may not null terminate the name). 223 * If the hostname has been fully-qualified for some reason, the domain 224 * part will be removed. The returned hostname is converted to the 225 * specified case (lower, upper, or preserved). 226 * 227 * If gethostname fails, the returned buffer will contain an empty 228 * string. 229 */ 230 int 231 smb_gethostname(char *buf, size_t buflen, smb_caseconv_t which) 232 { 233 char *p; 234 235 if (buf == NULL || buflen == 0) 236 return (-1); 237 238 if (gethostname(buf, buflen) != 0) { 239 *buf = '\0'; 240 return (-1); 241 } 242 243 buf[buflen - 1] = '\0'; 244 245 if ((p = strchr(buf, '.')) != NULL) 246 *p = '\0'; 247 248 switch (which) { 249 case SMB_CASE_LOWER: 250 (void) smb_strlwr(buf); 251 break; 252 253 case SMB_CASE_UPPER: 254 (void) smb_strupr(buf); 255 break; 256 257 case SMB_CASE_PRESERVE: 258 default: 259 break; 260 } 261 262 return (0); 263 } 264 265 /* 266 * Obtain the fully-qualified name for this machine in lower case. If 267 * the hostname is fully-qualified, accept it. Otherwise, try to find an 268 * appropriate domain name to append to the hostname. 269 */ 270 int 271 smb_getfqhostname(char *buf, size_t buflen) 272 { 273 char hostname[MAXHOSTNAMELEN]; 274 char domain[MAXHOSTNAMELEN]; 275 276 hostname[0] = '\0'; 277 domain[0] = '\0'; 278 279 if (smb_gethostname(hostname, MAXHOSTNAMELEN, 280 SMB_CASE_LOWER) != 0) 281 return (-1); 282 283 if (smb_getfqdomainname(domain, MAXHOSTNAMELEN) != 0) 284 return (-1); 285 286 if (hostname[0] == '\0') 287 return (-1); 288 289 if (domain[0] == '\0') { 290 (void) strlcpy(buf, hostname, buflen); 291 return (0); 292 } 293 294 (void) snprintf(buf, buflen, "%s.%s", hostname, domain); 295 return (0); 296 } 297 298 /* 299 * smb_getdomainname 300 * 301 * Returns NETBIOS name of the domain if the system is in domain 302 * mode. Or returns workgroup name if the system is in workgroup 303 * mode. 304 */ 305 int 306 smb_getdomainname(char *buf, size_t buflen) 307 { 308 int rc; 309 310 if (buf == NULL || buflen == 0) 311 return (-1); 312 313 *buf = '\0'; 314 rc = smb_config_getstr(SMB_CI_DOMAIN_NAME, buf, buflen); 315 316 if ((rc != SMBD_SMF_OK) || (*buf == '\0')) 317 return (-1); 318 319 return (0); 320 } 321 322 /* 323 * smb_getfqdomainname 324 * 325 * In the system is in domain mode, the dns_domain property value 326 * is returned. Otherwise, it returns the local domain obtained via 327 * resolver. 328 * 329 * Returns 0 upon success. Otherwise, returns -1. 330 */ 331 int 332 smb_getfqdomainname(char *buf, size_t buflen) 333 { 334 struct __res_state res_state; 335 int rc; 336 337 if (buf == NULL || buflen == 0) 338 return (-1); 339 340 *buf = '\0'; 341 if (smb_config_get_secmode() == SMB_SECMODE_DOMAIN) { 342 rc = smb_config_getstr(SMB_CI_DOMAIN_FQDN, buf, buflen); 343 344 if ((rc != SMBD_SMF_OK) || (*buf == '\0')) 345 return (-1); 346 } else { 347 bzero(&res_state, sizeof (struct __res_state)); 348 if (res_ninit(&res_state)) 349 return (-1); 350 351 if (*res_state.defdname == '\0') { 352 res_ndestroy(&res_state); 353 return (-1); 354 } 355 356 (void) strlcpy(buf, res_state.defdname, buflen); 357 res_ndestroy(&res_state); 358 rc = 0; 359 } 360 361 return (rc); 362 } 363 364 365 /* 366 * smb_set_machine_passwd 367 * 368 * This function should be used when setting the machine password property. 369 * The associated sequence number is incremented. 370 */ 371 static int 372 smb_set_machine_passwd(char *passwd) 373 { 374 int64_t num; 375 int rc = -1; 376 377 if (smb_config_set(SMB_CI_MACHINE_PASSWD, passwd) != SMBD_SMF_OK) 378 return (-1); 379 380 (void) mutex_lock(&seqnum_mtx); 381 (void) smb_config_getnum(SMB_CI_KPASSWD_SEQNUM, &num); 382 if (smb_config_setnum(SMB_CI_KPASSWD_SEQNUM, ++num) 383 == SMBD_SMF_OK) 384 rc = 0; 385 (void) mutex_unlock(&seqnum_mtx); 386 return (rc); 387 } 388 389 static int 390 smb_get_machine_passwd(uint8_t *buf, size_t buflen) 391 { 392 char pwd[SMB_PASSWD_MAXLEN + 1]; 393 int rc; 394 395 if (buflen < SMBAUTH_HASH_SZ) 396 return (-1); 397 398 rc = smb_config_getstr(SMB_CI_MACHINE_PASSWD, pwd, sizeof (pwd)); 399 if ((rc != SMBD_SMF_OK) || *pwd == '\0') 400 return (-1); 401 402 if (smb_auth_ntlm_hash(pwd, buf) != 0) 403 return (-1); 404 405 return (rc); 406 } 407 408 /* 409 * Set up IPC connection credentials. 410 */ 411 void 412 smb_ipc_init(void) 413 { 414 int rc; 415 416 (void) rw_wrlock(&smb_ipc_lock); 417 bzero(&ipc_info, sizeof (smb_ipc_t)); 418 bzero(&ipc_orig_info, sizeof (smb_ipc_t)); 419 420 (void) smb_getsamaccount(ipc_info.user, SMB_USERNAME_MAXLEN); 421 rc = smb_get_machine_passwd(ipc_info.passwd, SMBAUTH_HASH_SZ); 422 if (rc != 0) 423 *ipc_info.passwd = 0; 424 (void) rw_unlock(&smb_ipc_lock); 425 426 } 427 428 /* 429 * Set the IPC username and password hash in memory. If the domain 430 * join succeeds, the credentials will be committed for use with 431 * authenticated IPC. Otherwise, they should be rolled back. 432 */ 433 void 434 smb_ipc_set(char *plain_user, uint8_t *passwd_hash) 435 { 436 (void) rw_wrlock(&smb_ipc_lock); 437 (void) strlcpy(ipc_info.user, plain_user, sizeof (ipc_info.user)); 438 (void) memcpy(ipc_info.passwd, passwd_hash, SMBAUTH_HASH_SZ); 439 (void) rw_unlock(&smb_ipc_lock); 440 441 } 442 443 /* 444 * Save the host credentials to be used for authenticated IPC. 445 * The credentials are also saved to the original IPC info as 446 * rollback data in case the join domain process fails later. 447 */ 448 void 449 smb_ipc_commit(void) 450 { 451 (void) rw_wrlock(&smb_ipc_lock); 452 (void) smb_getsamaccount(ipc_info.user, SMB_USERNAME_MAXLEN); 453 (void) smb_get_machine_passwd(ipc_info.passwd, SMBAUTH_HASH_SZ); 454 (void) memcpy(&ipc_orig_info, &ipc_info, sizeof (smb_ipc_t)); 455 (void) rw_unlock(&smb_ipc_lock); 456 } 457 458 /* 459 * Restore the original credentials 460 */ 461 void 462 smb_ipc_rollback(void) 463 { 464 (void) rw_wrlock(&smb_ipc_lock); 465 (void) strlcpy(ipc_info.user, ipc_orig_info.user, 466 sizeof (ipc_info.user)); 467 (void) memcpy(ipc_info.passwd, ipc_orig_info.passwd, 468 sizeof (ipc_info.passwd)); 469 (void) rw_unlock(&smb_ipc_lock); 470 } 471 472 void 473 smb_ipc_get_user(char *buf, size_t buflen) 474 { 475 (void) rw_rdlock(&smb_ipc_lock); 476 (void) strlcpy(buf, ipc_info.user, buflen); 477 (void) rw_unlock(&smb_ipc_lock); 478 } 479 480 void 481 smb_ipc_get_passwd(uint8_t *buf, size_t buflen) 482 { 483 if (buflen < SMBAUTH_HASH_SZ) 484 return; 485 486 (void) rw_rdlock(&smb_ipc_lock); 487 (void) memcpy(buf, ipc_info.passwd, SMBAUTH_HASH_SZ); 488 (void) rw_unlock(&smb_ipc_lock); 489 } 490 491 /* 492 * smb_match_netlogon_seqnum 493 * 494 * A sequence number is associated with each machine password property 495 * update and the netlogon credential chain setup. If the 496 * sequence numbers don't match, a NETLOGON credential chain 497 * establishment is required. 498 * 499 * Returns 0 if kpasswd_seqnum equals to netlogon_seqnum. Otherwise, 500 * returns -1. 501 */ 502 boolean_t 503 smb_match_netlogon_seqnum(void) 504 { 505 int64_t setpasswd_seqnum; 506 int64_t netlogon_seqnum; 507 508 (void) mutex_lock(&seqnum_mtx); 509 (void) smb_config_getnum(SMB_CI_KPASSWD_SEQNUM, &setpasswd_seqnum); 510 (void) smb_config_getnum(SMB_CI_NETLOGON_SEQNUM, &netlogon_seqnum); 511 (void) mutex_unlock(&seqnum_mtx); 512 return (setpasswd_seqnum == netlogon_seqnum); 513 } 514 515 /* 516 * smb_setdomainprops 517 * 518 * This function should be called after joining an AD to 519 * set all the domain related SMF properties. 520 * 521 * The kpasswd_domain property is the AD domain to which the system 522 * is joined via kclient. If this function is invoked by the SMB 523 * daemon, fqdn should be set to NULL. 524 */ 525 int 526 smb_setdomainprops(char *fqdn, char *server, char *passwd) 527 { 528 if (server == NULL || passwd == NULL) 529 return (-1); 530 531 if ((*server == '\0') || (*passwd == '\0')) 532 return (-1); 533 534 if (fqdn && (smb_config_set(SMB_CI_KPASSWD_DOMAIN, fqdn) != 0)) 535 return (-1); 536 537 if (smb_config_set(SMB_CI_KPASSWD_SRV, server) != 0) 538 return (-1); 539 540 if (smb_set_machine_passwd(passwd) != 0) { 541 syslog(LOG_ERR, "smb_setdomainprops: failed to set" 542 " machine account password"); 543 return (-1); 544 } 545 546 /* 547 * If we successfully create a trust account, we mark 548 * ourselves as a domain member in the environment so 549 * that we use the SAMLOGON version of the NETLOGON 550 * PDC location protocol. 551 */ 552 (void) smb_config_setbool(SMB_CI_DOMAIN_MEMB, B_TRUE); 553 554 return (0); 555 } 556 557 /* 558 * smb_update_netlogon_seqnum 559 * 560 * This function should only be called upon a successful netlogon 561 * credential chain establishment to set the sequence number of the 562 * netlogon to match with that of the kpasswd. 563 */ 564 void 565 smb_update_netlogon_seqnum(void) 566 { 567 int64_t num; 568 569 (void) mutex_lock(&seqnum_mtx); 570 (void) smb_config_getnum(SMB_CI_KPASSWD_SEQNUM, &num); 571 (void) smb_config_setnum(SMB_CI_NETLOGON_SEQNUM, num); 572 (void) mutex_unlock(&seqnum_mtx); 573 } 574 575 576 /* 577 * Temporary fbt for dtrace until user space sdt enabled. 578 */ 579 void 580 smb_tracef(const char *fmt, ...) 581 { 582 va_list ap; 583 char buf[128]; 584 585 va_start(ap, fmt); 586 (void) vsnprintf(buf, 128, fmt, ap); 587 va_end(ap); 588 589 smb_trace(buf); 590 } 591 592 /* 593 * Temporary fbt for dtrace until user space sdt enabled. 594 * 595 * This function is designed to be used with dtrace, i.e. see: 596 * usr/src/cmd/smbsrv/dtrace/smbd-all.d 597 * 598 * Outside of dtrace, the messages passed to this function usually 599 * lack sufficient context to be useful, so we don't log them. 600 */ 601 /* ARGSUSED */ 602 void 603 smb_trace(const char *s) 604 { 605 } 606 607 /* 608 * smb_tonetbiosname 609 * 610 * Creates a NetBIOS name based on the given name and suffix. 611 * NetBIOS name is 15 capital characters, padded with space if needed 612 * and the 16th byte is the suffix. 613 */ 614 void 615 smb_tonetbiosname(char *name, char *nb_name, char suffix) 616 { 617 char tmp_name[NETBIOS_NAME_SZ]; 618 smb_wchar_t wtmp_name[NETBIOS_NAME_SZ]; 619 int len; 620 size_t rc; 621 622 len = 0; 623 rc = smb_mbstowcs(wtmp_name, (const char *)name, NETBIOS_NAME_SZ); 624 625 if (rc != (size_t)-1) { 626 wtmp_name[NETBIOS_NAME_SZ - 1] = 0; 627 rc = ucstooem(tmp_name, wtmp_name, NETBIOS_NAME_SZ, 628 OEM_CPG_850); 629 if (rc > 0) 630 len = strlen(tmp_name); 631 } 632 633 (void) memset(nb_name, ' ', NETBIOS_NAME_SZ - 1); 634 if (len) { 635 (void) smb_strupr(tmp_name); 636 (void) memcpy(nb_name, tmp_name, len); 637 } 638 nb_name[NETBIOS_NAME_SZ - 1] = suffix; 639 } 640 641 int 642 smb_get_nameservers(smb_inaddr_t *ips, int sz) 643 { 644 union res_sockaddr_union set[MAXNS]; 645 int i, cnt; 646 struct __res_state res_state; 647 char ipstr[INET6_ADDRSTRLEN]; 648 649 if (ips == NULL) 650 return (0); 651 652 bzero(&res_state, sizeof (struct __res_state)); 653 if (res_ninit(&res_state) < 0) 654 return (0); 655 656 cnt = res_getservers(&res_state, set, MAXNS); 657 for (i = 0; i < cnt; i++) { 658 if (i >= sz) 659 break; 660 ips[i].a_family = AF_INET; 661 bcopy(&set[i].sin.sin_addr, &ips[i].a_ipv4, NS_INADDRSZ); 662 if (inet_ntop(AF_INET, &ips[i].a_ipv4, ipstr, 663 INET_ADDRSTRLEN)) { 664 syslog(LOG_DEBUG, "Found %s name server\n", ipstr); 665 continue; 666 } 667 ips[i].a_family = AF_INET6; 668 bcopy(&set[i].sin.sin_addr, &ips[i].a_ipv6, NS_IN6ADDRSZ); 669 if (inet_ntop(AF_INET6, &ips[i].a_ipv6, ipstr, 670 INET6_ADDRSTRLEN)) { 671 syslog(LOG_DEBUG, "Found %s name server\n", ipstr); 672 } 673 } 674 res_ndestroy(&res_state); 675 return (i); 676 } 677 678 /* 679 * smb_gethostbyname 680 * 681 * Looks up a host by the given name. The host entry can come 682 * from any of the sources for hosts specified in the 683 * /etc/nsswitch.conf and the NetBIOS cache. 684 * 685 * XXX Invokes nbt_name_resolve API once the NBTD is integrated 686 * to look in the NetBIOS cache if getipnodebyname fails. 687 * 688 * Caller should invoke freehostent to free the returned hostent. 689 */ 690 struct hostent * 691 smb_gethostbyname(const char *name, int *err_num) 692 { 693 struct hostent *h; 694 695 h = getipnodebyname(name, AF_INET, 0, err_num); 696 if ((h == NULL) || h->h_length != INADDRSZ) 697 h = getipnodebyname(name, AF_INET6, AI_DEFAULT, err_num); 698 return (h); 699 } 700 701 /* 702 * smb_gethostbyaddr 703 * 704 * Looks up a host by the given IP address. The host entry can come 705 * from any of the sources for hosts specified in the 706 * /etc/nsswitch.conf and the NetBIOS cache. 707 * 708 * XXX Invokes nbt API to resolve name by IP once the NBTD is integrated 709 * to look in the NetBIOS cache if getipnodebyaddr fails. 710 * 711 * Caller should invoke freehostent to free the returned hostent. 712 */ 713 struct hostent * 714 smb_gethostbyaddr(const char *addr, int len, int type, int *err_num) 715 { 716 struct hostent *h; 717 718 h = getipnodebyaddr(addr, len, type, err_num); 719 720 return (h); 721 } 722