xref: /illumos-gate/usr/src/lib/smbsrv/libsmb/common/smb_cfg.c (revision dfa42fab8d7071228466d2f82351da8e1a090aad)
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 2018 Nexenta Systems, Inc.  All rights reserved.
24  */
25 
26 /*
27  * CIFS configuration management library
28  */
29 
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <unistd.h>
33 #include <synch.h>
34 #include <string.h>
35 #include <strings.h>
36 #include <syslog.h>
37 #include <netdb.h>
38 #include <ctype.h>
39 #include <sys/types.h>
40 #include <libscf.h>
41 #include <assert.h>
42 #include <uuid/uuid.h>
43 #include <smbsrv/libsmb.h>
44 
45 typedef struct smb_cfg_param {
46 	smb_cfg_id_t sc_id;
47 	char *sc_name;
48 	int sc_type;
49 	uint32_t sc_flags;
50 } smb_cfg_param_t;
51 
52 struct str_val {
53 	char *str;
54 	uint32_t val;
55 };
56 
57 /*
58  * config parameter flags
59  */
60 #define	SMB_CF_PROTECTED	0x01
61 #define	SMB_CF_EXEC		0x02
62 
63 /* idmap SMF fmri and Property Group */
64 #define	IDMAP_FMRI_PREFIX		"system/idmap"
65 #define	MACHINE_SID			"machine_sid"
66 #define	MACHINE_UUID			"machine_uuid"
67 #define	IDMAP_DOMAIN			"domain_name"
68 #define	IDMAP_PREF_DC			"preferred_dc"
69 #define	IDMAP_SITE_NAME			"site_name"
70 #define	IDMAP_PG_NAME			"config"
71 
72 #define	SMB_SECMODE_WORKGRP_STR		"workgroup"
73 #define	SMB_SECMODE_DOMAIN_STR		"domain"
74 
75 #define	SMB_ENC_LEN	1024
76 #define	SMB_DEC_LEN	256
77 
78 static char *b64_data =
79 	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
80 
81 static smb_cfg_param_t smb_cfg_table[] =
82 {
83 	{SMB_CI_VERSION, "sv_version", SCF_TYPE_ASTRING, 0},
84 
85 	/* Oplock configuration, Kernel Only */
86 	{SMB_CI_OPLOCK_ENABLE, "oplock_enable", SCF_TYPE_BOOLEAN, 0},
87 
88 	/* Autohome configuration */
89 	{SMB_CI_AUTOHOME_MAP, "autohome_map", SCF_TYPE_ASTRING, 0},
90 
91 	/* Domain/PDC configuration */
92 	{SMB_CI_DOMAIN_SID, "domain_sid", SCF_TYPE_ASTRING, 0},
93 	{SMB_CI_DOMAIN_MEMB, "domain_member", SCF_TYPE_BOOLEAN, 0},
94 	{SMB_CI_DOMAIN_NAME, "domain_name", SCF_TYPE_ASTRING, 0},
95 	{SMB_CI_DOMAIN_FQDN, "fqdn", SCF_TYPE_ASTRING, 0},
96 	{SMB_CI_DOMAIN_FOREST, "forest", SCF_TYPE_ASTRING, 0},
97 	{SMB_CI_DOMAIN_GUID, "domain_guid", SCF_TYPE_ASTRING, 0},
98 	{SMB_CI_DOMAIN_SRV, "pdc", SCF_TYPE_ASTRING, 0},
99 
100 	/* WINS configuration */
101 	{SMB_CI_WINS_SRV1, "wins_server_1", SCF_TYPE_ASTRING, 0},
102 	{SMB_CI_WINS_SRV2, "wins_server_2", SCF_TYPE_ASTRING, 0},
103 	{SMB_CI_WINS_EXCL, "wins_exclude", SCF_TYPE_ASTRING, 0},
104 
105 	/* Kmod specific configuration */
106 	{SMB_CI_MAX_WORKERS, "max_workers", SCF_TYPE_INTEGER, 0},
107 	{SMB_CI_MAX_CONNECTIONS, "max_connections", SCF_TYPE_INTEGER, 0},
108 	{SMB_CI_KEEPALIVE, "keep_alive", SCF_TYPE_INTEGER, 0},
109 	{SMB_CI_RESTRICT_ANON, "restrict_anonymous", SCF_TYPE_BOOLEAN, 0},
110 
111 	{SMB_CI_SIGNING_ENABLE, "signing_enabled", SCF_TYPE_BOOLEAN, 0},
112 	{SMB_CI_SIGNING_REQD, "signing_required", SCF_TYPE_BOOLEAN, 0},
113 
114 	/* Kmod tuning configuration */
115 	{SMB_CI_SYNC_ENABLE, "sync_enable", SCF_TYPE_BOOLEAN, 0},
116 
117 	/* SMBd configuration */
118 	{SMB_CI_SECURITY, "security", SCF_TYPE_ASTRING, 0},
119 	{SMB_CI_NETBIOS_ENABLE, "netbios_enable", SCF_TYPE_BOOLEAN, 0},
120 	{SMB_CI_NBSCOPE, "netbios_scope", SCF_TYPE_ASTRING, 0},
121 	{SMB_CI_SYS_CMNT, "system_comment", SCF_TYPE_ASTRING, 0},
122 	{SMB_CI_LM_LEVEL, "lmauth_level", SCF_TYPE_INTEGER, 0},
123 
124 	/* ADS Configuration */
125 	{SMB_CI_ADS_SITE, "ads_site", SCF_TYPE_ASTRING, 0},
126 
127 	/* Dynamic DNS */
128 	{SMB_CI_DYNDNS_ENABLE, "ddns_enable", SCF_TYPE_BOOLEAN, 0},
129 
130 	{SMB_CI_MACHINE_PASSWD, "machine_passwd", SCF_TYPE_ASTRING,
131 	    SMB_CF_PROTECTED},
132 
133 	{SMB_CI_MACHINE_UUID, "machine_uuid", SCF_TYPE_ASTRING, 0},
134 	{SMB_CI_KPASSWD_SRV, "kpasswd_server", SCF_TYPE_ASTRING, 0},
135 	{SMB_CI_KPASSWD_DOMAIN, "kpasswd_domain", SCF_TYPE_ASTRING, 0},
136 	{SMB_CI_KPASSWD_SEQNUM, "kpasswd_seqnum", SCF_TYPE_INTEGER, 0},
137 	{SMB_CI_NETLOGON_SEQNUM, "netlogon_seqnum", SCF_TYPE_INTEGER, 0},
138 	{SMB_CI_IPV6_ENABLE, "ipv6_enable", SCF_TYPE_BOOLEAN, 0},
139 	{SMB_CI_PRINT_ENABLE, "print_enable", SCF_TYPE_BOOLEAN, 0},
140 	{SMB_CI_MAP, "map", SCF_TYPE_ASTRING, SMB_CF_EXEC},
141 	{SMB_CI_UNMAP, "unmap", SCF_TYPE_ASTRING, SMB_CF_EXEC},
142 	{SMB_CI_DISPOSITION, "disposition", SCF_TYPE_ASTRING, SMB_CF_EXEC},
143 	{SMB_CI_DFS_STDROOT_NUM, "dfs_stdroot_num", SCF_TYPE_INTEGER, 0},
144 	{SMB_CI_TRAVERSE_MOUNTS, "traverse_mounts", SCF_TYPE_BOOLEAN, 0},
145 	{SMB_CI_SMB2_ENABLE_OLD, "smb2_enable", SCF_TYPE_BOOLEAN, 0},
146 	{SMB_CI_INITIAL_CREDITS, "initial_credits", SCF_TYPE_INTEGER, 0},
147 	{SMB_CI_MAXIMUM_CREDITS, "maximum_credits", SCF_TYPE_INTEGER, 0},
148 	{SMB_CI_MAX_PROTOCOL, "max_protocol", SCF_TYPE_ASTRING, 0},
149 	{SMB_CI_ENCRYPT, "encrypt", SCF_TYPE_ASTRING, 0},
150 	{SMB_CI_MIN_PROTOCOL, "min_protocol", SCF_TYPE_ASTRING, 0},
151 	{SMB_CI_BYPASS_TRAVERSE_CHECKING,
152 	    "bypass_traverse_checking", SCF_TYPE_BOOLEAN, 0},
153 
154 	/* SMB_CI_MAX */
155 };
156 
157 /*
158  * We store the max SMB protocol version in SMF as a string,
159  * (for convenience of svccfg etc) but the programmatic get/set
160  * interfaces use the numeric form.
161  *
162  * The numeric values are as defined in the [MS-SMB2] spec.
163  * except for how we represent "1" (for SMB1) which is an
164  * arbitrary value below SMB2_VERS_BASE.
165  */
166 static struct str_val
167 smb_versions[] = {
168 	{ "3.02",	SMB_VERS_3_02 },
169 	{ "3.0",	SMB_VERS_3_0 },
170 	{ "2.1",	SMB_VERS_2_1 },
171 	{ "2.002",	SMB_VERS_2_002 },
172 	{ "1",		SMB_VERS_1 },
173 	{ NULL,		0 }
174 };
175 
176 static smb_cfg_param_t *smb_config_getent(smb_cfg_id_t);
177 
178 static boolean_t smb_is_base64(unsigned char c);
179 static char *smb_base64_encode(char *str_to_encode);
180 static char *smb_base64_decode(char *encoded_str);
181 static int smb_config_get_idmap_preferred_dc(char *, int);
182 static int smb_config_set_idmap_preferred_dc(char *);
183 static int smb_config_get_idmap_site_name(char *, int);
184 static int smb_config_set_idmap_site_name(char *);
185 
186 static uint32_t
187 smb_convert_version_str(const char *version)
188 {
189 	uint32_t dialect = 0;
190 	int i;
191 
192 	for (i = 0; smb_versions[i].str != NULL; i++) {
193 		if (strcmp(version, smb_versions[i].str) == 0)
194 			dialect = smb_versions[i].val;
195 	}
196 
197 	return (dialect);
198 }
199 
200 char *
201 smb_config_getname(smb_cfg_id_t id)
202 {
203 	smb_cfg_param_t *cfg;
204 	cfg = smb_config_getent(id);
205 	return (cfg->sc_name);
206 }
207 
208 static boolean_t
209 smb_is_base64(unsigned char c)
210 {
211 	return (isalnum(c) || (c == '+') || (c == '/'));
212 }
213 
214 /*
215  * smb_base64_encode
216  *
217  * Encode a string using base64 algorithm.
218  * Caller should free the returned buffer when done.
219  */
220 static char *
221 smb_base64_encode(char *str_to_encode)
222 {
223 	int ret_cnt = 0;
224 	int i = 0, j = 0;
225 	char arr_3[3], arr_4[4];
226 	int len = strlen(str_to_encode);
227 	char *ret = malloc(SMB_ENC_LEN);
228 
229 	if (ret == NULL) {
230 		return (NULL);
231 	}
232 
233 	while (len--) {
234 		arr_3[i++] = *(str_to_encode++);
235 		if (i == 3) {
236 			arr_4[0] = (arr_3[0] & 0xfc) >> 2;
237 			arr_4[1] = ((arr_3[0] & 0x03) << 4) +
238 			    ((arr_3[1] & 0xf0) >> 4);
239 			arr_4[2] = ((arr_3[1] & 0x0f) << 2) +
240 			    ((arr_3[2] & 0xc0) >> 6);
241 			arr_4[3] = arr_3[2] & 0x3f;
242 
243 			for (i = 0; i < 4; i++)
244 				ret[ret_cnt++] = b64_data[arr_4[i]];
245 			i = 0;
246 		}
247 	}
248 
249 	if (i) {
250 		for (j = i; j < 3; j++)
251 			arr_3[j] = '\0';
252 
253 		arr_4[0] = (arr_3[0] & 0xfc) >> 2;
254 		arr_4[1] = ((arr_3[0] & 0x03) << 4) +
255 		    ((arr_3[1] & 0xf0) >> 4);
256 		arr_4[2] = ((arr_3[1] & 0x0f) << 2) +
257 		    ((arr_3[2] & 0xc0) >> 6);
258 		arr_4[3] = arr_3[2] & 0x3f;
259 
260 		for (j = 0; j < (i + 1); j++)
261 			ret[ret_cnt++] = b64_data[arr_4[j]];
262 
263 		while (i++ < 3)
264 			ret[ret_cnt++] = '=';
265 	}
266 
267 	ret[ret_cnt++] = '\0';
268 	return (ret);
269 }
270 
271 /*
272  * smb_base64_decode
273  *
274  * Decode using base64 algorithm.
275  * Caller should free the returned buffer when done.
276  */
277 static char *
278 smb_base64_decode(char *encoded_str)
279 {
280 	int len = strlen(encoded_str);
281 	int i = 0, j = 0;
282 	int en_ind = 0;
283 	char arr_4[4], arr_3[3];
284 	int ret_cnt = 0;
285 	char *ret = malloc(SMB_DEC_LEN);
286 	char *p;
287 
288 	if (ret == NULL) {
289 		return (NULL);
290 	}
291 
292 	while (len-- && (encoded_str[en_ind] != '=') &&
293 	    smb_is_base64(encoded_str[en_ind])) {
294 		arr_4[i++] = encoded_str[en_ind];
295 		en_ind++;
296 		if (i == 4) {
297 			for (i = 0; i < 4; i++) {
298 				if ((p = strchr(b64_data, arr_4[i])) == NULL)
299 					return (NULL);
300 
301 				arr_4[i] = (int)(p - b64_data);
302 			}
303 
304 			arr_3[0] = (arr_4[0] << 2) +
305 			    ((arr_4[1] & 0x30) >> 4);
306 			arr_3[1] = ((arr_4[1] & 0xf) << 4) +
307 			    ((arr_4[2] & 0x3c) >> 2);
308 			arr_3[2] = ((arr_4[2] & 0x3) << 6) +
309 			    arr_4[3];
310 
311 			for (i = 0; i < 3; i++)
312 				ret[ret_cnt++] = arr_3[i];
313 
314 			i = 0;
315 		}
316 	}
317 
318 	if (i) {
319 		for (j = i; j < 4; j++)
320 			arr_4[j] = 0;
321 
322 		for (j = 0; j < 4; j++) {
323 			if ((p = strchr(b64_data, arr_4[j])) == NULL)
324 				return (NULL);
325 
326 			arr_4[j] = (int)(p - b64_data);
327 		}
328 		arr_3[0] = (arr_4[0] << 2) +
329 		    ((arr_4[1] & 0x30) >> 4);
330 		arr_3[1] = ((arr_4[1] & 0xf) << 4) +
331 		    ((arr_4[2] & 0x3c) >> 2);
332 		arr_3[2] = ((arr_4[2] & 0x3) << 6) +
333 		    arr_4[3];
334 		for (j = 0; j < (i - 1); j++)
335 			ret[ret_cnt++] = arr_3[j];
336 	}
337 
338 	ret[ret_cnt++] = '\0';
339 	return (ret);
340 }
341 
342 static char *
343 smb_config_getenv_generic(char *name, char *svc_fmri_prefix, char *svc_propgrp)
344 {
345 	smb_scfhandle_t *handle;
346 	char *value;
347 
348 	if ((value = malloc(MAX_VALUE_BUFLEN * sizeof (char))) == NULL)
349 		return (NULL);
350 
351 	handle = smb_smf_scf_init(svc_fmri_prefix);
352 	if (handle == NULL) {
353 		free(value);
354 		return (NULL);
355 	}
356 
357 	(void) smb_smf_create_service_pgroup(handle, svc_propgrp);
358 
359 	if (smb_smf_get_string_property(handle, name, value,
360 	    sizeof (char) * MAX_VALUE_BUFLEN) != 0) {
361 		smb_smf_scf_fini(handle);
362 		free(value);
363 		return (NULL);
364 	}
365 
366 	smb_smf_scf_fini(handle);
367 	return (value);
368 
369 }
370 
371 static int
372 smb_config_setenv_generic(char *svc_fmri_prefix, char *svc_propgrp,
373     char *name, char *value)
374 {
375 	smb_scfhandle_t *handle = NULL;
376 	int rc = 0;
377 
378 
379 	handle = smb_smf_scf_init(svc_fmri_prefix);
380 	if (handle == NULL) {
381 		return (1);
382 	}
383 
384 	(void) smb_smf_create_service_pgroup(handle, svc_propgrp);
385 
386 	if (smb_smf_start_transaction(handle) != SMBD_SMF_OK) {
387 		smb_smf_scf_fini(handle);
388 		return (1);
389 	}
390 
391 	if (smb_smf_set_string_property(handle, name, value) != SMBD_SMF_OK)
392 		rc = 1;
393 
394 	if (smb_smf_end_transaction(handle) != SMBD_SMF_OK)
395 		rc = 1;
396 
397 	smb_smf_scf_fini(handle);
398 	return (rc);
399 }
400 
401 /*
402  * smb_config_getstr
403  *
404  * Fetch the specified string configuration item from SMF
405  */
406 int
407 smb_config_getstr(smb_cfg_id_t id, char *cbuf, int bufsz)
408 {
409 	smb_scfhandle_t *handle;
410 	smb_cfg_param_t *cfg;
411 	int rc = SMBD_SMF_OK;
412 	char *pg;
413 	char protbuf[SMB_ENC_LEN];
414 	char *tmp;
415 
416 	*cbuf = '\0';
417 	cfg = smb_config_getent(id);
418 	assert(cfg->sc_type == SCF_TYPE_ASTRING);
419 
420 	if (id == SMB_CI_ADS_SITE)
421 		return (smb_config_get_idmap_site_name(cbuf, bufsz));
422 	if (id == SMB_CI_DOMAIN_SRV)
423 		return (smb_config_get_idmap_preferred_dc(cbuf, bufsz));
424 
425 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
426 	if (handle == NULL)
427 		return (SMBD_SMF_SYSTEM_ERR);
428 
429 	if (cfg->sc_flags & SMB_CF_PROTECTED) {
430 		if ((rc = smb_smf_create_service_pgroup(handle,
431 		    SMBD_PROTECTED_PG_NAME)) != SMBD_SMF_OK)
432 			goto error;
433 
434 		if ((rc = smb_smf_get_string_property(handle, cfg->sc_name,
435 		    protbuf, sizeof (protbuf))) != SMBD_SMF_OK)
436 			goto error;
437 
438 		if (*protbuf != '\0') {
439 			tmp = smb_base64_decode(protbuf);
440 			(void) strlcpy(cbuf, tmp, bufsz);
441 			free(tmp);
442 		}
443 	} else {
444 		pg = (cfg->sc_flags & SMB_CF_EXEC) ? SMBD_EXEC_PG_NAME :
445 		    SMBD_PG_NAME;
446 		rc = smb_smf_create_service_pgroup(handle, pg);
447 		if (rc == SMBD_SMF_OK)
448 			rc = smb_smf_get_string_property(handle, cfg->sc_name,
449 			    cbuf, bufsz);
450 	}
451 
452 error:
453 	smb_smf_scf_fini(handle);
454 	return (rc);
455 }
456 
457 /*
458  * Translate the value of an astring SMF property into a binary
459  * IP address. If the value is neither a valid IPv4 nor IPv6
460  * address, attempt to look it up as a hostname using the
461  * configured address type.
462  */
463 int
464 smb_config_getip(smb_cfg_id_t sc_id, smb_inaddr_t *ipaddr)
465 {
466 	int rc, error;
467 	int a_family;
468 	char ipstr[MAXHOSTNAMELEN];
469 	struct hostent *h;
470 	smb_cfg_param_t *cfg;
471 
472 	if (ipaddr == NULL)
473 		return (SMBD_SMF_INVALID_ARG);
474 
475 	bzero(ipaddr, sizeof (smb_inaddr_t));
476 	rc = smb_config_getstr(sc_id, ipstr, sizeof (ipstr));
477 	if (rc == SMBD_SMF_OK) {
478 		if (*ipstr == '\0')
479 			return (SMBD_SMF_INVALID_ARG);
480 
481 		if (inet_pton(AF_INET, ipstr, &ipaddr->a_ipv4) == 1) {
482 			ipaddr->a_family = AF_INET;
483 			return (SMBD_SMF_OK);
484 		}
485 
486 		if (inet_pton(AF_INET6, ipstr, &ipaddr->a_ipv6) == 1) {
487 			ipaddr->a_family = AF_INET6;
488 			return (SMBD_SMF_OK);
489 		}
490 
491 		/*
492 		 * The value is neither an IPv4 nor IPv6 address;
493 		 * so check if it's a hostname.
494 		 */
495 		a_family = smb_config_getbool(SMB_CI_IPV6_ENABLE) ?
496 		    AF_INET6 : AF_INET;
497 		h = getipnodebyname(ipstr, a_family, AI_DEFAULT,
498 		    &error);
499 		if (h != NULL) {
500 			bcopy(*(h->h_addr_list), &ipaddr->a_ip,
501 			    h->h_length);
502 			ipaddr->a_family = a_family;
503 			freehostent(h);
504 			rc = SMBD_SMF_OK;
505 		} else {
506 			cfg = smb_config_getent(sc_id);
507 			syslog(LOG_ERR, "smbd/%s: %s unable to get %s "
508 			    "address: %d", cfg->sc_name, ipstr,
509 			    a_family == AF_INET ?  "IPv4" : "IPv6", error);
510 			rc = SMBD_SMF_INVALID_ARG;
511 		}
512 	}
513 
514 	return (rc);
515 }
516 
517 /*
518  * smb_config_getnum
519  *
520  * Returns the value of a numeric config param.
521  */
522 int
523 smb_config_getnum(smb_cfg_id_t id, int64_t *cint)
524 {
525 	smb_scfhandle_t *handle;
526 	smb_cfg_param_t *cfg;
527 	int rc = SMBD_SMF_OK;
528 
529 	*cint = 0;
530 	cfg = smb_config_getent(id);
531 	assert(cfg->sc_type == SCF_TYPE_INTEGER);
532 
533 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
534 	if (handle == NULL)
535 		return (SMBD_SMF_SYSTEM_ERR);
536 
537 	rc = smb_smf_create_service_pgroup(handle, SMBD_PG_NAME);
538 	if (rc == SMBD_SMF_OK)
539 		rc = smb_smf_get_integer_property(handle, cfg->sc_name, cint);
540 	smb_smf_scf_fini(handle);
541 
542 	return (rc);
543 }
544 
545 /*
546  * smb_config_getbool
547  *
548  * Returns the value of a boolean config param.
549  */
550 boolean_t
551 smb_config_getbool(smb_cfg_id_t id)
552 {
553 	smb_scfhandle_t *handle;
554 	smb_cfg_param_t *cfg;
555 	int rc = SMBD_SMF_OK;
556 	uint8_t vbool;
557 
558 	cfg = smb_config_getent(id);
559 	assert(cfg->sc_type == SCF_TYPE_BOOLEAN);
560 
561 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
562 	if (handle == NULL)
563 		return (B_FALSE);
564 
565 	rc = smb_smf_create_service_pgroup(handle, SMBD_PG_NAME);
566 	if (rc == SMBD_SMF_OK)
567 		rc = smb_smf_get_boolean_property(handle, cfg->sc_name, &vbool);
568 	smb_smf_scf_fini(handle);
569 
570 	return ((rc == SMBD_SMF_OK) ? (vbool == 1) : B_FALSE);
571 }
572 
573 /*
574  * smb_config_get
575  *
576  * This function returns the value of the requested config
577  * iterm regardless of its type in string format. This should
578  * be used when the config item type is not known by the caller.
579  */
580 int
581 smb_config_get(smb_cfg_id_t id, char *cbuf, int bufsz)
582 {
583 	smb_cfg_param_t *cfg;
584 	int64_t cint;
585 	int rc;
586 
587 	cfg = smb_config_getent(id);
588 	switch (cfg->sc_type) {
589 	case SCF_TYPE_ASTRING:
590 		return (smb_config_getstr(id, cbuf, bufsz));
591 
592 	case SCF_TYPE_INTEGER:
593 		rc = smb_config_getnum(id, &cint);
594 		if (rc == SMBD_SMF_OK)
595 			(void) snprintf(cbuf, bufsz, "%lld", cint);
596 		return (rc);
597 
598 	case SCF_TYPE_BOOLEAN:
599 		if (smb_config_getbool(id))
600 			(void) strlcpy(cbuf, "true", bufsz);
601 		else
602 			(void) strlcpy(cbuf, "false", bufsz);
603 		return (SMBD_SMF_OK);
604 	}
605 
606 	return (SMBD_SMF_INVALID_ARG);
607 }
608 
609 /*
610  * smb_config_setstr
611  *
612  * Set the specified config param with the given
613  * value.
614  */
615 int
616 smb_config_setstr(smb_cfg_id_t id, char *value)
617 {
618 	smb_scfhandle_t *handle;
619 	smb_cfg_param_t *cfg;
620 	int rc = SMBD_SMF_OK;
621 	boolean_t protected;
622 	char *tmp = NULL;
623 	char *pg;
624 
625 	cfg = smb_config_getent(id);
626 	assert(cfg->sc_type == SCF_TYPE_ASTRING);
627 
628 	if (id == SMB_CI_ADS_SITE)
629 		return (smb_config_set_idmap_site_name(value));
630 	if (id == SMB_CI_DOMAIN_SRV)
631 		return (smb_config_set_idmap_preferred_dc(value));
632 
633 	protected = B_FALSE;
634 
635 	switch (cfg->sc_flags) {
636 	case SMB_CF_PROTECTED:
637 		protected = B_TRUE;
638 		pg = SMBD_PROTECTED_PG_NAME;
639 		break;
640 	case SMB_CF_EXEC:
641 		pg = SMBD_EXEC_PG_NAME;
642 		break;
643 	default:
644 		pg = SMBD_PG_NAME;
645 		break;
646 	}
647 
648 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
649 	if (handle == NULL)
650 		return (SMBD_SMF_SYSTEM_ERR);
651 
652 	rc = smb_smf_create_service_pgroup(handle, pg);
653 	if (rc == SMBD_SMF_OK)
654 		rc = smb_smf_start_transaction(handle);
655 
656 	if (rc != SMBD_SMF_OK) {
657 		smb_smf_scf_fini(handle);
658 		return (rc);
659 	}
660 
661 	if (protected && value && (*value != '\0')) {
662 		if ((tmp = smb_base64_encode(value)) == NULL) {
663 			(void) smb_smf_end_transaction(handle);
664 			smb_smf_scf_fini(handle);
665 			return (SMBD_SMF_NO_MEMORY);
666 		}
667 
668 		value = tmp;
669 	}
670 
671 	/*
672 	 * We don't want people who care enough about protecting their data
673 	 * by requiring encryption to accidentally expose their data
674 	 * by lowering the protocol, so prevent them from going below 3.0
675 	 * if encryption is required.
676 	 * Also, ensure that max_protocol >= min_protocol.
677 	 */
678 	if (id == SMB_CI_MAX_PROTOCOL) {
679 		smb_cfg_val_t encrypt;
680 		uint32_t min;
681 		uint32_t val;
682 
683 		encrypt = smb_config_get_require(SMB_CI_ENCRYPT);
684 		min = smb_config_get_min_protocol();
685 		val = smb_convert_version_str(value);
686 
687 		if (encrypt == SMB_CONFIG_REQUIRED &&
688 		    val < SMB_VERS_3_0) {
689 			syslog(LOG_ERR, "Cannot set smbd/max_protocol below 3.0"
690 			    " while smbd/encrypt == required.");
691 			rc = SMBD_SMF_INVALID_ARG;
692 		} else if (val < min) {
693 			syslog(LOG_ERR, "Cannot set smbd/max_protocol to less"
694 			    " than smbd/min_protocol.");
695 			rc = SMBD_SMF_INVALID_ARG;
696 		}
697 	} else if (id == SMB_CI_MIN_PROTOCOL) {
698 		uint32_t max;
699 		uint32_t val;
700 
701 		max = smb_config_get_max_protocol();
702 		val = smb_convert_version_str(value);
703 
704 		if (val > max) {
705 			syslog(LOG_ERR, "Cannot set smbd/min_protocol to more"
706 			    " than smbd/max_protocol.");
707 			rc = SMBD_SMF_INVALID_ARG;
708 		}
709 	}
710 
711 	if (rc == SMBD_SMF_OK) {
712 		rc = smb_smf_set_string_property(handle, cfg->sc_name, value);
713 	}
714 
715 	free(tmp);
716 	(void) smb_smf_end_transaction(handle);
717 	smb_smf_scf_fini(handle);
718 	return (rc);
719 }
720 
721 /*
722  * smb_config_setnum
723  *
724  * Sets a numeric configuration iterm
725  */
726 int
727 smb_config_setnum(smb_cfg_id_t id, int64_t value)
728 {
729 	smb_scfhandle_t *handle;
730 	smb_cfg_param_t *cfg;
731 	int rc = SMBD_SMF_OK;
732 
733 	cfg = smb_config_getent(id);
734 	assert(cfg->sc_type == SCF_TYPE_INTEGER);
735 
736 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
737 	if (handle == NULL)
738 		return (SMBD_SMF_SYSTEM_ERR);
739 
740 	rc = smb_smf_create_service_pgroup(handle, SMBD_PG_NAME);
741 	if (rc == SMBD_SMF_OK)
742 		rc = smb_smf_start_transaction(handle);
743 
744 	if (rc != SMBD_SMF_OK) {
745 		smb_smf_scf_fini(handle);
746 		return (rc);
747 	}
748 
749 	rc = smb_smf_set_integer_property(handle, cfg->sc_name, value);
750 
751 	(void) smb_smf_end_transaction(handle);
752 	smb_smf_scf_fini(handle);
753 	return (rc);
754 }
755 
756 /*
757  * smb_config_setbool
758  *
759  * Sets a boolean configuration iterm
760  */
761 int
762 smb_config_setbool(smb_cfg_id_t id, boolean_t value)
763 {
764 	smb_scfhandle_t *handle;
765 	smb_cfg_param_t *cfg;
766 	int rc = SMBD_SMF_OK;
767 
768 	cfg = smb_config_getent(id);
769 	assert(cfg->sc_type == SCF_TYPE_BOOLEAN);
770 
771 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
772 	if (handle == NULL)
773 		return (SMBD_SMF_SYSTEM_ERR);
774 
775 	rc = smb_smf_create_service_pgroup(handle, SMBD_PG_NAME);
776 	if (rc == SMBD_SMF_OK)
777 		rc = smb_smf_start_transaction(handle);
778 
779 	if (rc != SMBD_SMF_OK) {
780 		smb_smf_scf_fini(handle);
781 		return (rc);
782 	}
783 
784 	rc = smb_smf_set_boolean_property(handle, cfg->sc_name, value);
785 
786 	(void) smb_smf_end_transaction(handle);
787 	smb_smf_scf_fini(handle);
788 	return (rc);
789 }
790 
791 /*
792  * smb_config_set
793  *
794  * This function sets the value of the specified config
795  * iterm regardless of its type in string format. This should
796  * be used when the config item type is not known by the caller.
797  */
798 int
799 smb_config_set(smb_cfg_id_t id, char *value)
800 {
801 	smb_cfg_param_t *cfg;
802 	int64_t cint;
803 
804 	cfg = smb_config_getent(id);
805 	switch (cfg->sc_type) {
806 	case SCF_TYPE_ASTRING:
807 		return (smb_config_setstr(id, value));
808 
809 	case SCF_TYPE_INTEGER:
810 		cint = atoi(value);
811 		return (smb_config_setnum(id, cint));
812 
813 	case SCF_TYPE_BOOLEAN:
814 		return (smb_config_setbool(id, strcasecmp(value, "true") == 0));
815 	}
816 
817 	return (SMBD_SMF_INVALID_ARG);
818 }
819 
820 int
821 smb_config_get_debug()
822 {
823 	int64_t val64;
824 	int val = 0;	/* default */
825 	smb_scfhandle_t *handle = NULL;
826 
827 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
828 	if (handle == NULL) {
829 		return (val);
830 	}
831 
832 	if (smb_smf_create_service_pgroup(handle,
833 	    SMBD_PG_NAME) != SMBD_SMF_OK) {
834 		smb_smf_scf_fini(handle);
835 		return (val);
836 	}
837 
838 	if (smb_smf_get_integer_property(handle, "debug", &val64) != 0) {
839 		smb_smf_scf_fini(handle);
840 		return (val);
841 	}
842 	val = (int)val64;
843 
844 	smb_smf_scf_fini(handle);
845 
846 	return (val);
847 }
848 
849 uint8_t
850 smb_config_get_fg_flag()
851 {
852 	uint8_t run_fg = 0; /* Default is to run in daemon mode */
853 	smb_scfhandle_t *handle = NULL;
854 
855 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
856 	if (handle == NULL) {
857 		return (run_fg);
858 	}
859 
860 	if (smb_smf_create_service_pgroup(handle,
861 	    SMBD_PG_NAME) != SMBD_SMF_OK) {
862 		smb_smf_scf_fini(handle);
863 		return (run_fg);
864 	}
865 
866 	if (smb_smf_get_boolean_property(handle, "run_fg", &run_fg) != 0) {
867 		smb_smf_scf_fini(handle);
868 		return (run_fg);
869 	}
870 
871 	smb_smf_scf_fini(handle);
872 
873 	return (run_fg);
874 }
875 
876 /*
877  * smb_config_get_ads_enable
878  *
879  * Returns value of the "config/use_ads" parameter
880  * from the IDMAP SMF configuration repository.
881  *
882  */
883 boolean_t
884 smb_config_get_ads_enable(void)
885 {
886 	smb_scfhandle_t *handle = NULL;
887 	uint8_t vbool;
888 	int rc = 0;
889 
890 	handle = smb_smf_scf_init(IDMAP_FMRI_PREFIX);
891 	if (handle == NULL)
892 		return (B_FALSE);
893 
894 	rc = smb_smf_create_service_pgroup(handle, IDMAP_PG_NAME);
895 	if (rc == SMBD_SMF_OK)
896 		rc = smb_smf_get_boolean_property(handle, "use_ads", &vbool);
897 	smb_smf_scf_fini(handle);
898 
899 	return ((rc == SMBD_SMF_OK) ? (vbool == 1) : B_TRUE);
900 }
901 
902 /*
903  * smb_config_get_localsid
904  *
905  * Returns value of the "config/machine_sid" parameter
906  * from the IDMAP SMF configuration repository.
907  * Result is allocated; caller should free.
908  */
909 char *
910 smb_config_get_localsid(void)
911 {
912 	return (smb_config_getenv_generic(MACHINE_SID, IDMAP_FMRI_PREFIX,
913 	    IDMAP_PG_NAME));
914 }
915 
916 /*
917  * smb_config_get_localuuid
918  *
919  * Returns value of the "config/machine_uuid" parameter
920  * from the IDMAP SMF configuration repository.
921  *
922  */
923 int
924 smb_config_get_localuuid(uuid_t uu)
925 {
926 	char *s;
927 
928 	uuid_clear(uu);
929 	s = smb_config_getenv_generic(MACHINE_UUID, IDMAP_FMRI_PREFIX,
930 	    IDMAP_PG_NAME);
931 	if (s == NULL)
932 		return (-1);
933 
934 	if (uuid_parse(s, uu) < 0) {
935 		free(s);
936 		return (-1);
937 	}
938 
939 	return (0);
940 }
941 
942 static int
943 smb_config_get_idmap_preferred_dc(char *cbuf, int bufsz)
944 {
945 	char *s;
946 	int len, rc = -1;
947 
948 	s = smb_config_getenv_generic(IDMAP_PREF_DC,
949 	    IDMAP_FMRI_PREFIX, IDMAP_PG_NAME);
950 	if (s != NULL) {
951 		len = strlcpy(cbuf, s, bufsz);
952 		if (len < bufsz)
953 			rc = 0;
954 		free(s);
955 	}
956 	return (rc);
957 }
958 
959 static int
960 smb_config_set_idmap_preferred_dc(char *value)
961 {
962 	return (smb_config_setenv_generic(IDMAP_FMRI_PREFIX, IDMAP_PG_NAME,
963 	    IDMAP_PREF_DC, value));
964 }
965 
966 static int
967 smb_config_get_idmap_site_name(char *cbuf, int bufsz)
968 {
969 	char *s;
970 	int len, rc = -1;
971 
972 	s = smb_config_getenv_generic(IDMAP_SITE_NAME,
973 	    IDMAP_FMRI_PREFIX, IDMAP_PG_NAME);
974 	if (s != NULL) {
975 		len = strlcpy(cbuf, s, bufsz);
976 		if (len < bufsz)
977 			rc = 0;
978 		free(s);
979 	}
980 	return (rc);
981 }
982 
983 static int
984 smb_config_set_idmap_site_name(char *value)
985 {
986 	return (smb_config_setenv_generic(IDMAP_FMRI_PREFIX, IDMAP_PG_NAME,
987 	    IDMAP_SITE_NAME, value));
988 }
989 
990 /*
991  * smb_config_set_idmap_domain
992  *
993  * Set the "config/domain_name" parameter from IDMAP SMF repository.
994  */
995 int
996 smb_config_set_idmap_domain(char *value)
997 {
998 	return (smb_config_setenv_generic(IDMAP_FMRI_PREFIX, IDMAP_PG_NAME,
999 	    IDMAP_DOMAIN, value));
1000 }
1001 
1002 /*
1003  * smb_config_refresh_idmap
1004  *
1005  * Refresh IDMAP SMF service after making changes to its configuration.
1006  */
1007 int
1008 smb_config_refresh_idmap(void)
1009 {
1010 	char instance[32];
1011 
1012 	(void) snprintf(instance, sizeof (instance), "%s:default",
1013 	    IDMAP_FMRI_PREFIX);
1014 	return (smf_refresh_instance(instance));
1015 }
1016 
1017 int
1018 smb_config_secmode_fromstr(char *secmode)
1019 {
1020 	if (secmode == NULL)
1021 		return (SMB_SECMODE_WORKGRP);
1022 
1023 	if (strcasecmp(secmode, SMB_SECMODE_DOMAIN_STR) == 0)
1024 		return (SMB_SECMODE_DOMAIN);
1025 
1026 	return (SMB_SECMODE_WORKGRP);
1027 }
1028 
1029 char *
1030 smb_config_secmode_tostr(int secmode)
1031 {
1032 	if (secmode == SMB_SECMODE_DOMAIN)
1033 		return (SMB_SECMODE_DOMAIN_STR);
1034 
1035 	return (SMB_SECMODE_WORKGRP_STR);
1036 }
1037 
1038 int
1039 smb_config_get_secmode()
1040 {
1041 	char p[16];
1042 
1043 	(void) smb_config_getstr(SMB_CI_SECURITY, p, sizeof (p));
1044 	return (smb_config_secmode_fromstr(p));
1045 }
1046 
1047 int
1048 smb_config_set_secmode(int secmode)
1049 {
1050 	char *p;
1051 
1052 	p = smb_config_secmode_tostr(secmode);
1053 	return (smb_config_setstr(SMB_CI_SECURITY, p));
1054 }
1055 
1056 void
1057 smb_config_getdomaininfo(char *domain, char *fqdn, char *sid, char *forest,
1058     char *guid)
1059 {
1060 	if (domain)
1061 		(void) smb_config_getstr(SMB_CI_DOMAIN_NAME, domain,
1062 		    NETBIOS_NAME_SZ);
1063 
1064 	if (fqdn)
1065 		(void) smb_config_getstr(SMB_CI_DOMAIN_FQDN, fqdn,
1066 		    MAXHOSTNAMELEN);
1067 
1068 	if (sid)
1069 		(void) smb_config_getstr(SMB_CI_DOMAIN_SID, sid,
1070 		    SMB_SID_STRSZ);
1071 
1072 	if (forest)
1073 		(void) smb_config_getstr(SMB_CI_DOMAIN_FOREST, forest,
1074 		    MAXHOSTNAMELEN);
1075 
1076 	if (guid)
1077 		(void) smb_config_getstr(SMB_CI_DOMAIN_GUID, guid,
1078 		    UUID_PRINTABLE_STRING_LENGTH);
1079 }
1080 
1081 void
1082 smb_config_setdomaininfo(char *domain, char *fqdn, char *sid, char *forest,
1083     char *guid)
1084 {
1085 	if (domain)
1086 		(void) smb_config_setstr(SMB_CI_DOMAIN_NAME, domain);
1087 	if (fqdn)
1088 		(void) smb_config_setstr(SMB_CI_DOMAIN_FQDN, fqdn);
1089 	if (sid)
1090 		(void) smb_config_setstr(SMB_CI_DOMAIN_SID, sid);
1091 	if (forest)
1092 		(void) smb_config_setstr(SMB_CI_DOMAIN_FOREST, forest);
1093 	if (guid)
1094 		(void) smb_config_setstr(SMB_CI_DOMAIN_GUID, guid);
1095 }
1096 
1097 /*
1098  * The version stored in SMF in string format as N.N where
1099  * N is a number defined by Microsoft. The first number represents
1100  * the major version and the second number is the minor version.
1101  * Current defined values can be found here in 'ver_table'.
1102  *
1103  * This function reads the SMF string value and converts it to
1104  * two numbers returned in the given 'version' structure.
1105  * Current default version number is 5.0 which is for Windows 2000.
1106  */
1107 void
1108 smb_config_get_version(smb_version_t *version)
1109 {
1110 	smb_version_t tmpver;
1111 	char verstr[SMB_VERSTR_LEN];
1112 	char *p;
1113 	int rc, i;
1114 	static smb_version_t ver_table [] = {
1115 		{ 0, SMB_MAJOR_NT,	SMB_MINOR_NT,		1381,	0 },
1116 		{ 0, SMB_MAJOR_2000,	SMB_MINOR_2000,		2195,	0 },
1117 		{ 0, SMB_MAJOR_XP,	SMB_MINOR_XP,		2196,	0 },
1118 		{ 0, SMB_MAJOR_2003,	SMB_MINOR_2003,		2196,	0 },
1119 		{ 0, SMB_MAJOR_VISTA,	SMB_MINOR_VISTA,	6000,	0 },
1120 		{ 0, SMB_MAJOR_2008,	SMB_MINOR_2008,		6000,	0 },
1121 		{ 0, SMB_MAJOR_2008R2,	SMB_MINOR_2008R2,	7007,	0 },
1122 		{ 0, SMB_MAJOR_7,	SMB_MINOR_7,		7007,	0 }
1123 	};
1124 
1125 	*version = ver_table[1];
1126 	version->sv_size = sizeof (smb_version_t);
1127 
1128 	rc = smb_config_getstr(SMB_CI_VERSION, verstr, sizeof (verstr));
1129 	if (rc != SMBD_SMF_OK)
1130 		return;
1131 
1132 	if ((p = strchr(verstr, '.')) == NULL)
1133 		return;
1134 
1135 	*p = '\0';
1136 	tmpver.sv_major = (uint8_t)atoi(verstr);
1137 	tmpver.sv_minor = (uint8_t)atoi(p + 1);
1138 
1139 	for (i = 0; i < sizeof (ver_table)/sizeof (ver_table[0]); ++i) {
1140 		if ((tmpver.sv_major == ver_table[i].sv_major) &&
1141 		    (tmpver.sv_minor == ver_table[i].sv_minor)) {
1142 			*version = ver_table[i];
1143 			version->sv_size = sizeof (smb_version_t);
1144 			break;
1145 		}
1146 	}
1147 }
1148 
1149 /*
1150  * Reads share exec script properties
1151  */
1152 uint32_t
1153 smb_config_get_execinfo(char *map, char *unmap, size_t bufsz)
1154 {
1155 	char buf[MAXPATHLEN];
1156 	uint32_t flags = 0;
1157 
1158 	if (map == NULL) {
1159 		map = buf;
1160 		bufsz = MAXPATHLEN;
1161 	}
1162 
1163 	*map = '\0';
1164 	(void) smb_config_getstr(SMB_CI_MAP, map, bufsz);
1165 	if (*map != '\0')
1166 		flags |= SMB_EXEC_MAP;
1167 
1168 	if (unmap == NULL) {
1169 		unmap = buf;
1170 		bufsz = MAXPATHLEN;
1171 	}
1172 
1173 	*unmap = '\0';
1174 	(void) smb_config_getstr(SMB_CI_UNMAP, unmap, bufsz);
1175 	if (*unmap != '\0')
1176 		flags |= SMB_EXEC_UNMAP;
1177 
1178 	*buf = '\0';
1179 	(void) smb_config_getstr(SMB_CI_DISPOSITION, buf, sizeof (buf));
1180 	if (*buf != '\0')
1181 		if (strcasecmp(buf, SMB_EXEC_DISP_TERMINATE) == 0)
1182 			flags |= SMB_EXEC_TERM;
1183 
1184 	return (flags);
1185 }
1186 
1187 static smb_cfg_param_t *
1188 smb_config_getent(smb_cfg_id_t id)
1189 {
1190 	int i;
1191 
1192 	for (i = 0; i < SMB_CI_MAX; i++)
1193 		if (smb_cfg_table[i].sc_id == id)
1194 			return (&smb_cfg_table[id]);
1195 
1196 	assert(0);
1197 	return (NULL);
1198 }
1199 
1200 static uint32_t
1201 smb_config_get_protocol(smb_cfg_id_t id, char *name, uint32_t default_val)
1202 {
1203 	char str[SMB_VERSTR_LEN];
1204 	int rc;
1205 	uint32_t val;
1206 
1207 	rc = smb_config_getstr(id, str, sizeof (str));
1208 	if (rc == SMBD_SMF_OK) {
1209 		val = smb_convert_version_str(str);
1210 		if (val != 0)
1211 			return (val);
1212 		if (str[0] != '\0') {
1213 			syslog(LOG_ERR, "smbd/%s value invalid: %s", name, str);
1214 		}
1215 	}
1216 
1217 	return (default_val);
1218 }
1219 
1220 /*
1221  * The service manifest has empty values by default for min_protocol and
1222  * max_protocol. The expectation is that when those values are empty, we don't
1223  * constrain the range of supported protocol versions (and allow use of the
1224  * whole range that we implement). For that reason, this should usually be the
1225  * highest protocol version we implement.
1226  */
1227 uint32_t max_protocol_default = SMB_VERS_3_02;
1228 
1229 uint32_t
1230 smb_config_get_max_protocol(void)
1231 {
1232 	uint32_t max;
1233 
1234 	max = smb_config_get_protocol(SMB_CI_MAX_PROTOCOL, "max_protocol",
1235 	    max_protocol_default);
1236 
1237 	return (max);
1238 }
1239 
1240 /*
1241  * This should eventually be SMB_VERS_2_BASE
1242  */
1243 uint32_t min_protocol_default = SMB_VERS_1;
1244 
1245 uint32_t
1246 smb_config_get_min_protocol(void)
1247 {
1248 	uint32_t min;
1249 
1250 	min = smb_config_get_protocol(SMB_CI_MIN_PROTOCOL, "min_protocol",
1251 	    min_protocol_default);
1252 
1253 	return (min);
1254 }
1255 
1256 int
1257 smb_config_check_protocol(char *value)
1258 {
1259 	if (smb_convert_version_str(value) != 0)
1260 		return (0);
1261 
1262 	return (-1);
1263 }
1264 
1265 /*
1266  * If smb2_enable is present and max_protocol is empty,
1267  * set max_protocol.  Delete smb2_enable.
1268  */
1269 static void
1270 upgrade_smb2_enable()
1271 {
1272 	smb_scfhandle_t *handle;
1273 	char *s2e_name = "smb2_enable";
1274 	char *s2e_sval;
1275 	uint8_t	s2e_bval;
1276 	char *maxp_name = "max_protocol";
1277 	char *maxp_sval;
1278 	char verstr[SMB_VERSTR_LEN];
1279 	int rc;
1280 
1281 	handle = smb_smf_scf_init(SMBD_FMRI_PREFIX);
1282 	if (handle == NULL)
1283 		return;
1284 	rc = smb_smf_create_service_pgroup(handle, SMBD_PG_NAME);
1285 	if (rc != SMBD_SMF_OK)
1286 		goto out;
1287 
1288 	/* Is there an "smb2_enable" property? */
1289 	rc = smb_smf_get_boolean_property(handle, s2e_name, &s2e_bval);
1290 	if (rc != SMBD_SMF_OK) {
1291 		syslog(LOG_DEBUG, "upgrade: smb2_enable not found");
1292 		goto out;
1293 	}
1294 
1295 	/*
1296 	 * We will try to delete the smb2_enable property, so we need
1297 	 * the transaction to start now, before we modify max_protocol
1298 	 */
1299 	if ((rc = smb_smf_start_transaction(handle)) != 0) {
1300 		syslog(LOG_DEBUG, "upgrade_smb2_enable: start trans (%d)", rc);
1301 		goto out;
1302 	}
1303 
1304 	/*
1305 	 * Old (smb2_enable) property exists.
1306 	 * Does the new one? (max_protocol)
1307 	 */
1308 	rc = smb_smf_get_string_property(handle, maxp_name,
1309 	    verstr, sizeof (verstr));
1310 	if (rc == SMBD_SMF_OK && !smb_config_check_protocol(verstr)) {
1311 		syslog(LOG_DEBUG, "upgrade: found %s = %s",
1312 		    maxp_name, verstr);
1313 		/* Leave existing max_protocol as we found it. */
1314 	} else {
1315 		/*
1316 		 * New property missing or invalid.
1317 		 * Upgrade from "smb2_enable".
1318 		 */
1319 		if (s2e_bval == 0) {
1320 			s2e_sval = "false";
1321 			maxp_sval = "1";
1322 		} else {
1323 			s2e_sval = "true";
1324 			maxp_sval = "2.1";
1325 		}
1326 		/*
1327 		 * Note: Need this in the same transaction as the
1328 		 * delete of smb2_enable below.
1329 		 */
1330 		rc = smb_smf_set_string_property(handle, maxp_name, maxp_sval);
1331 		if (rc != SMBD_SMF_OK) {
1332 			syslog(LOG_ERR, "failed to set smbd/%d (%d)",
1333 			    maxp_name, rc);
1334 			goto out;
1335 		}
1336 		syslog(LOG_INFO, "upgrade smbd/smb2_enable=%s "
1337 		    "converted to smbd/max_protocol=%s",
1338 		    s2e_sval, maxp_sval);
1339 	}
1340 
1341 	/*
1342 	 * Delete the old smb2_enable property.
1343 	 */
1344 	if ((rc = smb_smf_delete_property(handle, s2e_name)) != 0) {
1345 		syslog(LOG_DEBUG, "upgrade_smb2_enable: delete prop (%d)", rc);
1346 	} else if ((rc = smb_smf_end_transaction(handle)) != 0) {
1347 		syslog(LOG_DEBUG, "upgrade_smb2_enable: end trans (%d)", rc);
1348 	}
1349 	if (rc != 0) {
1350 		syslog(LOG_ERR, "failed to delete property smbd/%d (%d)",
1351 		    s2e_name, rc);
1352 	}
1353 
1354 out:
1355 	(void) smb_smf_end_transaction(handle);
1356 	smb_smf_scf_fini(handle);
1357 }
1358 
1359 
1360 /*
1361  * Run once at startup convert old SMF settings to current.
1362  */
1363 void
1364 smb_config_upgrade(void)
1365 {
1366 	upgrade_smb2_enable();
1367 }
1368 
1369 smb_cfg_val_t
1370 smb_config_get_require(smb_cfg_id_t id)
1371 {
1372 	int rc;
1373 	char str[sizeof ("required")];
1374 
1375 	rc = smb_config_getstr(id, str, sizeof (str));
1376 	if (rc != SMBD_SMF_OK)
1377 		return (SMB_CONFIG_DISABLED);
1378 
1379 	if (strncmp(str, "required", sizeof (str)) == 0)
1380 		return (SMB_CONFIG_REQUIRED);
1381 	if (strncmp(str, "enabled", sizeof (str)) == 0)
1382 		return (SMB_CONFIG_ENABLED);
1383 
1384 	return (SMB_CONFIG_DISABLED);
1385 }
1386