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 2016 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 kcfg->skc_encrypt = smb_config_get_require(SMB_CI_ENCRYPT); 162 163 (void) smb_getdomainname(kcfg->skc_nbdomain, 164 sizeof (kcfg->skc_nbdomain)); 165 (void) smb_getfqdomainname(kcfg->skc_fqdn, 166 sizeof (kcfg->skc_fqdn)); 167 (void) smb_getnetbiosname(kcfg->skc_hostname, 168 sizeof (kcfg->skc_hostname)); 169 (void) smb_config_getstr(SMB_CI_SYS_CMNT, kcfg->skc_system_comment, 170 sizeof (kcfg->skc_system_comment)); 171 smb_config_get_version(&kcfg->skc_version); 172 kcfg->skc_execflags = smb_config_get_execinfo(NULL, NULL, 0); 173 if (smb_config_get_localuuid(kcfg->skc_machine_uuid) < 0) { 174 syslog(LOG_ERR, "smb_load_kconfig: no machine_uuid"); 175 uuid_generate_time(kcfg->skc_machine_uuid); 176 } 177 /* skc_negtok, skc_negtok_len: see smbd_authsvc.c */ 178 179 (void) uname(&uts); 180 (void) snprintf(kcfg->skc_native_os, sizeof (kcfg->skc_native_os), 181 "%s %s %s", uts.sysname, uts.release, uts.version); 182 183 (void) strlcpy(kcfg->skc_native_lm, "Native SMB service", 184 sizeof (kcfg->skc_native_lm)); 185 } 186 187 /* 188 * Get the current system NetBIOS name. The hostname is truncated at 189 * the first `.` or 15 bytes, whichever occurs first, and converted 190 * to uppercase (by smb_gethostname). Text that appears after the 191 * first '.' is considered to be part of the NetBIOS scope. 192 * 193 * Returns 0 on success, otherwise -1 to indicate an error. 194 */ 195 int 196 smb_getnetbiosname(char *buf, size_t buflen) 197 { 198 if (smb_gethostname(buf, buflen, SMB_CASE_UPPER) != 0) 199 return (-1); 200 201 if (buflen >= NETBIOS_NAME_SZ) 202 buf[NETBIOS_NAME_SZ - 1] = '\0'; 203 204 return (0); 205 } 206 207 /* 208 * Get the SAM account of the current system. 209 * Returns 0 on success, otherwise, -1 to indicate an error. 210 */ 211 int 212 smb_getsamaccount(char *buf, size_t buflen) 213 { 214 if (smb_getnetbiosname(buf, buflen - 1) != 0) 215 return (-1); 216 217 (void) strlcat(buf, "$", buflen); 218 return (0); 219 } 220 221 /* 222 * Get the current system node name. The returned name is guaranteed 223 * to be null-terminated (gethostname may not null terminate the name). 224 * If the hostname has been fully-qualified for some reason, the domain 225 * part will be removed. The returned hostname is converted to the 226 * specified case (lower, upper, or preserved). 227 * 228 * If gethostname fails, the returned buffer will contain an empty 229 * string. 230 */ 231 int 232 smb_gethostname(char *buf, size_t buflen, smb_caseconv_t which) 233 { 234 char *p; 235 236 if (buf == NULL || buflen == 0) 237 return (-1); 238 239 if (gethostname(buf, buflen) != 0) { 240 *buf = '\0'; 241 return (-1); 242 } 243 244 buf[buflen - 1] = '\0'; 245 246 if ((p = strchr(buf, '.')) != NULL) 247 *p = '\0'; 248 249 switch (which) { 250 case SMB_CASE_LOWER: 251 (void) smb_strlwr(buf); 252 break; 253 254 case SMB_CASE_UPPER: 255 (void) smb_strupr(buf); 256 break; 257 258 case SMB_CASE_PRESERVE: 259 default: 260 break; 261 } 262 263 return (0); 264 } 265 266 /* 267 * Obtain the fully-qualified name for this machine in lower case. If 268 * the hostname is fully-qualified, accept it. Otherwise, try to find an 269 * appropriate domain name to append to the hostname. 270 */ 271 int 272 smb_getfqhostname(char *buf, size_t buflen) 273 { 274 char hostname[MAXHOSTNAMELEN]; 275 char domain[MAXHOSTNAMELEN]; 276 277 hostname[0] = '\0'; 278 domain[0] = '\0'; 279 280 if (smb_gethostname(hostname, MAXHOSTNAMELEN, 281 SMB_CASE_LOWER) != 0) 282 return (-1); 283 284 if (smb_getfqdomainname(domain, MAXHOSTNAMELEN) != 0) 285 return (-1); 286 287 if (hostname[0] == '\0') 288 return (-1); 289 290 if (domain[0] == '\0') { 291 (void) strlcpy(buf, hostname, buflen); 292 return (0); 293 } 294 295 (void) snprintf(buf, buflen, "%s.%s", hostname, domain); 296 return (0); 297 } 298 299 /* 300 * smb_getdomainname 301 * 302 * Returns NETBIOS name of the domain if the system is in domain 303 * mode. Or returns workgroup name if the system is in workgroup 304 * mode. 305 */ 306 int 307 smb_getdomainname(char *buf, size_t buflen) 308 { 309 int rc; 310 311 if (buf == NULL || buflen == 0) 312 return (-1); 313 314 *buf = '\0'; 315 rc = smb_config_getstr(SMB_CI_DOMAIN_NAME, buf, buflen); 316 317 if ((rc != SMBD_SMF_OK) || (*buf == '\0')) 318 return (-1); 319 320 return (0); 321 } 322 323 /* 324 * smb_getfqdomainname 325 * 326 * In the system is in domain mode, the dns_domain property value 327 * is returned. Otherwise, it returns the local domain obtained via 328 * resolver. 329 * 330 * Returns 0 upon success. Otherwise, returns -1. 331 */ 332 int 333 smb_getfqdomainname(char *buf, size_t buflen) 334 { 335 struct __res_state res_state; 336 int rc; 337 338 if (buf == NULL || buflen == 0) 339 return (-1); 340 341 *buf = '\0'; 342 if (smb_config_get_secmode() == SMB_SECMODE_DOMAIN) { 343 rc = smb_config_getstr(SMB_CI_DOMAIN_FQDN, buf, buflen); 344 345 if ((rc != SMBD_SMF_OK) || (*buf == '\0')) 346 return (-1); 347 } else { 348 bzero(&res_state, sizeof (struct __res_state)); 349 if (res_ninit(&res_state)) 350 return (-1); 351 352 if (*res_state.defdname == '\0') { 353 res_ndestroy(&res_state); 354 return (-1); 355 } 356 357 (void) strlcpy(buf, res_state.defdname, buflen); 358 res_ndestroy(&res_state); 359 rc = 0; 360 } 361 362 return (rc); 363 } 364 365 366 /* 367 * smb_set_machine_passwd 368 * 369 * This function should be used when setting the machine password property. 370 * The associated sequence number is incremented. 371 */ 372 static int 373 smb_set_machine_passwd(char *passwd) 374 { 375 int64_t num; 376 int rc = -1; 377 378 if (smb_config_set(SMB_CI_MACHINE_PASSWD, passwd) != SMBD_SMF_OK) 379 return (-1); 380 381 (void) mutex_lock(&seqnum_mtx); 382 (void) smb_config_getnum(SMB_CI_KPASSWD_SEQNUM, &num); 383 if (smb_config_setnum(SMB_CI_KPASSWD_SEQNUM, ++num) 384 == SMBD_SMF_OK) 385 rc = 0; 386 (void) mutex_unlock(&seqnum_mtx); 387 return (rc); 388 } 389 390 static int 391 smb_get_machine_passwd(uint8_t *buf, size_t buflen) 392 { 393 char pwd[SMB_PASSWD_MAXLEN + 1]; 394 int rc; 395 396 if (buflen < SMBAUTH_HASH_SZ) 397 return (-1); 398 399 rc = smb_config_getstr(SMB_CI_MACHINE_PASSWD, pwd, sizeof (pwd)); 400 if ((rc != SMBD_SMF_OK) || *pwd == '\0') 401 return (-1); 402 403 if (smb_auth_ntlm_hash(pwd, buf) != 0) 404 return (-1); 405 406 return (rc); 407 } 408 409 /* 410 * Set up IPC connection credentials. 411 */ 412 void 413 smb_ipc_init(void) 414 { 415 int rc; 416 417 (void) rw_wrlock(&smb_ipc_lock); 418 bzero(&ipc_info, sizeof (smb_ipc_t)); 419 bzero(&ipc_orig_info, sizeof (smb_ipc_t)); 420 421 (void) smb_getsamaccount(ipc_info.user, SMB_USERNAME_MAXLEN); 422 rc = smb_get_machine_passwd(ipc_info.passwd, SMBAUTH_HASH_SZ); 423 if (rc != 0) 424 *ipc_info.passwd = 0; 425 (void) rw_unlock(&smb_ipc_lock); 426 427 } 428 429 /* 430 * Set the IPC username and password hash in memory. If the domain 431 * join succeeds, the credentials will be committed for use with 432 * authenticated IPC. Otherwise, they should be rolled back. 433 */ 434 void 435 smb_ipc_set(char *plain_user, uint8_t *passwd_hash) 436 { 437 (void) rw_wrlock(&smb_ipc_lock); 438 (void) strlcpy(ipc_info.user, plain_user, sizeof (ipc_info.user)); 439 (void) memcpy(ipc_info.passwd, passwd_hash, SMBAUTH_HASH_SZ); 440 (void) rw_unlock(&smb_ipc_lock); 441 442 } 443 444 /* 445 * Save the host credentials to be used for authenticated IPC. 446 * The credentials are also saved to the original IPC info as 447 * rollback data in case the join domain process fails later. 448 */ 449 void 450 smb_ipc_commit(void) 451 { 452 (void) rw_wrlock(&smb_ipc_lock); 453 (void) smb_getsamaccount(ipc_info.user, SMB_USERNAME_MAXLEN); 454 (void) smb_get_machine_passwd(ipc_info.passwd, SMBAUTH_HASH_SZ); 455 (void) memcpy(&ipc_orig_info, &ipc_info, sizeof (smb_ipc_t)); 456 (void) rw_unlock(&smb_ipc_lock); 457 } 458 459 /* 460 * Restore the original credentials 461 */ 462 void 463 smb_ipc_rollback(void) 464 { 465 (void) rw_wrlock(&smb_ipc_lock); 466 (void) strlcpy(ipc_info.user, ipc_orig_info.user, 467 sizeof (ipc_info.user)); 468 (void) memcpy(ipc_info.passwd, ipc_orig_info.passwd, 469 sizeof (ipc_info.passwd)); 470 (void) rw_unlock(&smb_ipc_lock); 471 } 472 473 void 474 smb_ipc_get_user(char *buf, size_t buflen) 475 { 476 (void) rw_rdlock(&smb_ipc_lock); 477 (void) strlcpy(buf, ipc_info.user, buflen); 478 (void) rw_unlock(&smb_ipc_lock); 479 } 480 481 void 482 smb_ipc_get_passwd(uint8_t *buf, size_t buflen) 483 { 484 if (buflen < SMBAUTH_HASH_SZ) 485 return; 486 487 (void) rw_rdlock(&smb_ipc_lock); 488 (void) memcpy(buf, ipc_info.passwd, SMBAUTH_HASH_SZ); 489 (void) rw_unlock(&smb_ipc_lock); 490 } 491 492 /* 493 * smb_match_netlogon_seqnum 494 * 495 * A sequence number is associated with each machine password property 496 * update and the netlogon credential chain setup. If the 497 * sequence numbers don't match, a NETLOGON credential chain 498 * establishment is required. 499 * 500 * Returns 0 if kpasswd_seqnum equals to netlogon_seqnum. Otherwise, 501 * returns -1. 502 */ 503 boolean_t 504 smb_match_netlogon_seqnum(void) 505 { 506 int64_t setpasswd_seqnum; 507 int64_t netlogon_seqnum; 508 509 (void) mutex_lock(&seqnum_mtx); 510 (void) smb_config_getnum(SMB_CI_KPASSWD_SEQNUM, &setpasswd_seqnum); 511 (void) smb_config_getnum(SMB_CI_NETLOGON_SEQNUM, &netlogon_seqnum); 512 (void) mutex_unlock(&seqnum_mtx); 513 return (setpasswd_seqnum == netlogon_seqnum); 514 } 515 516 /* 517 * smb_setdomainprops 518 * 519 * This function should be called after joining an AD to 520 * set all the domain related SMF properties. 521 * 522 * The kpasswd_domain property is the AD domain to which the system 523 * is joined via kclient. If this function is invoked by the SMB 524 * daemon, fqdn should be set to NULL. 525 */ 526 int 527 smb_setdomainprops(char *fqdn, char *server, char *passwd) 528 { 529 if (server == NULL || passwd == NULL) 530 return (-1); 531 532 if ((*server == '\0') || (*passwd == '\0')) 533 return (-1); 534 535 if (fqdn && (smb_config_set(SMB_CI_KPASSWD_DOMAIN, fqdn) != 0)) 536 return (-1); 537 538 if (smb_config_set(SMB_CI_KPASSWD_SRV, server) != 0) 539 return (-1); 540 541 if (smb_set_machine_passwd(passwd) != 0) { 542 syslog(LOG_ERR, "smb_setdomainprops: failed to set" 543 " machine account password"); 544 return (-1); 545 } 546 547 /* 548 * If we successfully create a trust account, we mark 549 * ourselves as a domain member in the environment so 550 * that we use the SAMLOGON version of the NETLOGON 551 * PDC location protocol. 552 */ 553 (void) smb_config_setbool(SMB_CI_DOMAIN_MEMB, B_TRUE); 554 555 return (0); 556 } 557 558 /* 559 * smb_update_netlogon_seqnum 560 * 561 * This function should only be called upon a successful netlogon 562 * credential chain establishment to set the sequence number of the 563 * netlogon to match with that of the kpasswd. 564 */ 565 void 566 smb_update_netlogon_seqnum(void) 567 { 568 int64_t num; 569 570 (void) mutex_lock(&seqnum_mtx); 571 (void) smb_config_getnum(SMB_CI_KPASSWD_SEQNUM, &num); 572 (void) smb_config_setnum(SMB_CI_NETLOGON_SEQNUM, num); 573 (void) mutex_unlock(&seqnum_mtx); 574 } 575 576 577 /* 578 * Temporary fbt for dtrace until user space sdt enabled. 579 */ 580 void 581 smb_tracef(const char *fmt, ...) 582 { 583 va_list ap; 584 char buf[128]; 585 586 va_start(ap, fmt); 587 (void) vsnprintf(buf, 128, fmt, ap); 588 va_end(ap); 589 590 smb_trace(buf); 591 } 592 593 /* 594 * Temporary fbt for dtrace until user space sdt enabled. 595 * 596 * This function is designed to be used with dtrace, i.e. see: 597 * usr/src/cmd/smbsrv/dtrace/smbd-all.d 598 * 599 * Outside of dtrace, the messages passed to this function usually 600 * lack sufficient context to be useful, so we don't log them. 601 */ 602 /* ARGSUSED */ 603 void 604 smb_trace(const char *s) 605 { 606 } 607 608 /* 609 * smb_tonetbiosname 610 * 611 * Creates a NetBIOS name based on the given name and suffix. 612 * NetBIOS name is 15 capital characters, padded with space if needed 613 * and the 16th byte is the suffix. 614 */ 615 void 616 smb_tonetbiosname(char *name, char *nb_name, char suffix) 617 { 618 char tmp_name[NETBIOS_NAME_SZ]; 619 smb_wchar_t wtmp_name[NETBIOS_NAME_SZ]; 620 int len; 621 size_t rc; 622 623 len = 0; 624 rc = smb_mbstowcs(wtmp_name, (const char *)name, NETBIOS_NAME_SZ); 625 626 if (rc != (size_t)-1) { 627 wtmp_name[NETBIOS_NAME_SZ - 1] = 0; 628 rc = ucstooem(tmp_name, wtmp_name, NETBIOS_NAME_SZ, 629 OEM_CPG_850); 630 if (rc > 0) 631 len = strlen(tmp_name); 632 } 633 634 (void) memset(nb_name, ' ', NETBIOS_NAME_SZ - 1); 635 if (len) { 636 (void) smb_strupr(tmp_name); 637 (void) memcpy(nb_name, tmp_name, len); 638 } 639 nb_name[NETBIOS_NAME_SZ - 1] = suffix; 640 } 641 642 int 643 smb_get_nameservers(smb_inaddr_t *ips, int sz) 644 { 645 union res_sockaddr_union set[MAXNS]; 646 int i, cnt; 647 struct __res_state res_state; 648 char ipstr[INET6_ADDRSTRLEN]; 649 650 if (ips == NULL) 651 return (0); 652 653 bzero(&res_state, sizeof (struct __res_state)); 654 if (res_ninit(&res_state) < 0) 655 return (0); 656 657 cnt = res_getservers(&res_state, set, MAXNS); 658 for (i = 0; i < cnt; i++) { 659 if (i >= sz) 660 break; 661 ips[i].a_family = AF_INET; 662 bcopy(&set[i].sin.sin_addr, &ips[i].a_ipv4, NS_INADDRSZ); 663 if (inet_ntop(AF_INET, &ips[i].a_ipv4, ipstr, 664 INET_ADDRSTRLEN)) { 665 syslog(LOG_DEBUG, "Found %s name server\n", ipstr); 666 continue; 667 } 668 ips[i].a_family = AF_INET6; 669 bcopy(&set[i].sin.sin_addr, &ips[i].a_ipv6, NS_IN6ADDRSZ); 670 if (inet_ntop(AF_INET6, &ips[i].a_ipv6, ipstr, 671 INET6_ADDRSTRLEN)) { 672 syslog(LOG_DEBUG, "Found %s name server\n", ipstr); 673 } 674 } 675 res_ndestroy(&res_state); 676 return (i); 677 } 678 679 /* 680 * smb_gethostbyname 681 * 682 * Looks up a host by the given name. The host entry can come 683 * from any of the sources for hosts specified in the 684 * /etc/nsswitch.conf and the NetBIOS cache. 685 * 686 * XXX Invokes nbt_name_resolve API once the NBTD is integrated 687 * to look in the NetBIOS cache if getipnodebyname fails. 688 * 689 * Caller should invoke freehostent to free the returned hostent. 690 */ 691 struct hostent * 692 smb_gethostbyname(const char *name, int *err_num) 693 { 694 struct hostent *h; 695 696 h = getipnodebyname(name, AF_INET, 0, err_num); 697 if ((h == NULL) || h->h_length != INADDRSZ) 698 h = getipnodebyname(name, AF_INET6, AI_DEFAULT, err_num); 699 return (h); 700 } 701 702 /* 703 * smb_gethostbyaddr 704 * 705 * Looks up a host by the given IP address. The host entry can come 706 * from any of the sources for hosts specified in the 707 * /etc/nsswitch.conf and the NetBIOS cache. 708 * 709 * XXX Invokes nbt API to resolve name by IP once the NBTD is integrated 710 * to look in the NetBIOS cache if getipnodebyaddr fails. 711 * 712 * Caller should invoke freehostent to free the returned hostent. 713 */ 714 struct hostent * 715 smb_gethostbyaddr(const char *addr, int len, int type, int *err_num) 716 { 717 struct hostent *h; 718 719 h = getipnodebyaddr(addr, len, type, err_num); 720 721 return (h); 722 } 723