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 2020 Tintri by DDN, Inc. All rights reserved.
25  * Copyright 2020 RackTop Systems, Inc.
26  */
27 
28 #ifndef	_LIBSMB_H
29 #define	_LIBSMB_H
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 #include <sys/types.h>
36 #include <sys/inttypes.h>
37 #include <sys/list.h>
38 #include <sys/avl.h>
39 #include <arpa/inet.h>
40 #include <net/if.h>	/* LIFNAMSIZ */
41 #include <netdb.h>
42 #include <stdlib.h>
43 #include <libscf.h>
44 #include <libshare.h>
45 #include <uuid/uuid.h>
46 #include <synch.h>
47 #include <stdarg.h>
48 
49 #include <smb/nterror.h>
50 #include <smb/ntstatus.h>
51 #include <smb/wintypes.h>
52 
53 #include <smbsrv/string.h>
54 #include <smbsrv/smb_idmap.h>
55 #include <smbsrv/netbios.h>
56 #include <smbsrv/smb_share.h>
57 #include <smbsrv/smb_door.h>
58 #include <smbsrv/alloc.h>
59 #include <smbsrv/hash_table.h>
60 #include <smbsrv/msgbuf.h>
61 #include <smbsrv/smb_xdr.h>
62 #include <smbsrv/smbinfo.h>
63 #include <smbsrv/ntifs.h>
64 
65 #define	SMB_VARSMB_DIR "/var/smb"
66 #define	SMB_VARRUN_DIR "/var/run/smb"
67 #define	SMB_CCACHE_FILE "ccache"
68 #define	SMB_CCACHE_PATH SMB_VARRUN_DIR "/" SMB_CCACHE_FILE
69 
70 
71 /* Max value length of all SMB properties */
72 #define	MAX_VALUE_BUFLEN	512
73 
74 #define	SMBD_FMRI_PREFIX		"network/smb/server"
75 #define	SMBD_DEFAULT_INSTANCE_FMRI	"svc:/network/smb/server:default"
76 #define	SMBD_PG_NAME			"smbd"
77 #define	SMBD_PROTECTED_PG_NAME		"read"
78 #define	SMBD_EXEC_PG_NAME		"exec"
79 
80 #define	SMBD_SMF_OK		0
81 #define	SMBD_SMF_NO_MEMORY	1	/* no memory for data structures */
82 #define	SMBD_SMF_SYSTEM_ERR	2	/* system error, use errno */
83 #define	SMBD_SMF_NO_PERMISSION	3	/* no permission for operation */
84 #define	SMBD_SMF_INVALID_ARG	4
85 
86 #define	SCH_STATE_UNINIT	0
87 #define	SCH_STATE_INITIALIZING	1
88 #define	SCH_STATE_INIT		2
89 
90 typedef struct smb_scfhandle {
91 	scf_handle_t		*scf_handle;
92 	int			scf_state;
93 	scf_service_t		*scf_service;
94 	scf_scope_t		*scf_scope;
95 	scf_transaction_t	*scf_trans;
96 	scf_transaction_entry_t	*scf_entry;
97 	scf_propertygroup_t	*scf_pg;
98 	scf_instance_t		*scf_instance;
99 	scf_iter_t		*scf_inst_iter;
100 	scf_iter_t		*scf_pg_iter;
101 } smb_scfhandle_t;
102 
103 /*
104  * CIFS Configuration Management
105  */
106 typedef enum {
107 	SMB_CI_VERSION = 0,
108 	SMB_CI_OPLOCK_ENABLE,
109 
110 	SMB_CI_AUTOHOME_MAP,
111 
112 	SMB_CI_DOMAIN_SID,
113 	SMB_CI_DOMAIN_MEMB,
114 	SMB_CI_DOMAIN_NAME,
115 	SMB_CI_DOMAIN_FQDN,
116 	SMB_CI_DOMAIN_FOREST,
117 	SMB_CI_DOMAIN_GUID,
118 	SMB_CI_DOMAIN_SRV,
119 
120 	SMB_CI_WINS_SRV1,
121 	SMB_CI_WINS_SRV2,
122 	SMB_CI_WINS_EXCL,
123 
124 	SMB_CI_MAX_WORKERS,
125 	SMB_CI_MAX_CONNECTIONS,
126 	SMB_CI_KEEPALIVE,
127 	SMB_CI_RESTRICT_ANON,
128 
129 	SMB_CI_SIGNING_ENABLE,
130 	SMB_CI_SIGNING_REQD,
131 
132 	SMB_CI_SYNC_ENABLE,
133 
134 	SMB_CI_SECURITY,
135 	SMB_CI_NETBIOS_ENABLE,
136 	SMB_CI_NBSCOPE,
137 	SMB_CI_SYS_CMNT,
138 	SMB_CI_LM_LEVEL,
139 
140 	SMB_CI_ADS_SITE,
141 
142 	SMB_CI_DYNDNS_ENABLE,
143 
144 	SMB_CI_MACHINE_PASSWD,
145 	SMB_CI_MACHINE_UUID,
146 	SMB_CI_KPASSWD_SRV,
147 	SMB_CI_KPASSWD_DOMAIN,
148 	SMB_CI_KPASSWD_SEQNUM,
149 	SMB_CI_NETLOGON_SEQNUM,
150 	SMB_CI_IPV6_ENABLE,
151 	SMB_CI_PRINT_ENABLE,
152 	SMB_CI_MAP,
153 	SMB_CI_UNMAP,
154 	SMB_CI_DISPOSITION,
155 	SMB_CI_DFS_STDROOT_NUM,
156 	SMB_CI_TRAVERSE_MOUNTS,
157 	SMB_CI_SMB2_ENABLE_OLD, /* obsolete */
158 	SMB_CI_INITIAL_CREDITS,
159 	SMB_CI_MAXIMUM_CREDITS,
160 	SMB_CI_MAX_PROTOCOL,
161 	SMB_CI_ENCRYPT,
162 	SMB_CI_MIN_PROTOCOL,
163 	SMB_CI_BYPASS_TRAVERSE_CHECKING,
164 	SMB_CI_ENCRYPT_CIPHER,
165 	SMB_CI_NETLOGON_FLAGS,
166 
167 	SMB_CI_MAX
168 } smb_cfg_id_t;
169 
170 /* SMF helper functions */
171 extern smb_scfhandle_t *smb_smf_scf_init(char *);
172 extern void smb_smf_scf_fini(smb_scfhandle_t *);
173 extern int smb_smf_start_transaction(smb_scfhandle_t *);
174 extern int smb_smf_end_transaction(smb_scfhandle_t *);
175 extern int smb_smf_set_string_property(smb_scfhandle_t *, char *, char *);
176 extern int smb_smf_get_string_property(smb_scfhandle_t *, char *,
177     char *, size_t);
178 extern int smb_smf_set_integer_property(smb_scfhandle_t *, char *, int64_t);
179 extern int smb_smf_get_integer_property(smb_scfhandle_t *, char *, int64_t *);
180 extern int smb_smf_set_boolean_property(smb_scfhandle_t *, char *, uint8_t);
181 extern int smb_smf_get_boolean_property(smb_scfhandle_t *, char *, uint8_t *);
182 extern int smb_smf_set_opaque_property(smb_scfhandle_t *, char *,
183     void *, size_t);
184 extern int smb_smf_get_opaque_property(smb_scfhandle_t *, char *,
185     void *, size_t);
186 extern int smb_smf_create_service_pgroup(smb_scfhandle_t *, char *);
187 extern int smb_smf_delete_property(smb_scfhandle_t *, char *);
188 extern int smb_smf_restart_service(void);
189 extern int smb_smf_maintenance_mode(void);
190 
191 /* ZFS interface */
192 struct libzfs_handle;
193 int smb_getdataset(struct libzfs_handle *, const char *, char *, size_t);
194 
195 /* Configuration management functions  */
196 extern int smb_config_get(smb_cfg_id_t, char *, int);
197 extern char *smb_config_getname(smb_cfg_id_t);
198 extern int smb_config_getstr(smb_cfg_id_t, char *, int);
199 extern int smb_config_getnum(smb_cfg_id_t, int64_t *);
200 extern boolean_t smb_config_getbool(smb_cfg_id_t);
201 
202 extern int smb_config_set(smb_cfg_id_t, char *);
203 extern int smb_config_setstr(smb_cfg_id_t, char *);
204 extern int smb_config_setnum(smb_cfg_id_t, int64_t);
205 extern int smb_config_setbool(smb_cfg_id_t, boolean_t);
206 
207 extern boolean_t smb_config_get_ads_enable(void);
208 extern int smb_config_get_debug(void);
209 extern uint8_t smb_config_get_fg_flag(void);
210 extern char *smb_config_get_localsid(void);
211 extern int smb_config_get_localuuid(uuid_t);
212 extern int smb_config_secmode_fromstr(char *);
213 extern char *smb_config_secmode_tostr(int);
214 extern int smb_config_get_secmode(void);
215 extern int smb_config_set_secmode(int);
216 extern int smb_config_set_idmap_domain(char *);
217 extern int smb_config_refresh_idmap(void);
218 extern int smb_config_getip(smb_cfg_id_t, smb_inaddr_t *);
219 extern void smb_config_get_version(smb_version_t *);
220 uint32_t smb_config_get_execinfo(char *, char *, size_t);
221 extern void smb_config_get_negtok(uchar_t *, uint32_t *);
222 
223 extern uint32_t smb_config_get_max_protocol(void);
224 extern uint32_t smb_config_get_min_protocol(void);
225 extern uint32_t smb_convert_version_str(const char *);
226 extern void smb_config_upgrade(void);
227 extern uint16_t smb31_config_get_encrypt_cipher(void);
228 
229 extern smb_cfg_val_t smb_config_get_require(smb_cfg_id_t);
230 
231 extern void smb_load_kconfig(smb_kmod_cfg_t *kcfg);
232 extern uint32_t smb_crc_gen(uint8_t *, size_t);
233 
234 extern boolean_t smb_match_netlogon_seqnum(void);
235 extern int smb_setdomainprops(char *, char *, char *);
236 extern void smb_update_netlogon_seqnum(void);
237 
238 /* maximum password length on Windows 2000 and above */
239 #define	SMB_PASSWD_MAXLEN	127
240 #define	SMB_USERNAME_MAXLEN	40
241 
242 /* See also: smb_joininfo_xdr() */
243 typedef struct smb_joininfo {
244 	uint32_t mode;
245 	char domain_name[MAXHOSTNAMELEN];
246 	char container_name[MAXHOSTNAMELEN];
247 	char domain_username[SMB_USERNAME_MAXLEN + 1];
248 	char domain_passwd[SMB_PASSWD_MAXLEN + 1];
249 } smb_joininfo_t;
250 
251 /* See also: smb_joinres_xdr() */
252 typedef struct smb_joinres {
253 	uint32_t status;
254 	int join_err;
255 	char dc_name[MAXHOSTNAMELEN];
256 } smb_joinres_t;
257 
258 /* APIs to communicate with SMB daemon via door calls */
259 int smb_join(smb_joininfo_t *, smb_joinres_t *info);
260 bool_t smb_joininfo_xdr(XDR *, smb_joininfo_t *);
261 bool_t smb_joinres_xdr(XDR *, smb_joinres_t *);
262 boolean_t smb_find_ads_server(char *, char *, int);
263 void smb_notify_dc_changed(void);
264 
265 extern void smb_config_getdomaininfo(char *, char *, char *, char *, char *);
266 extern void smb_config_setdomaininfo(char *, char *, char *, char *, char *);
267 extern uint32_t smb_get_dcinfo(char *, uint32_t, smb_inaddr_t *);
268 
269 /*
270  * buffer context structure. This is used to keep track of the buffer
271  * context.
272  *
273  * basep:  points to the beginning of the buffer
274  * curp:   points to the current offset
275  * endp:   points to the limit of the buffer
276  */
277 typedef struct {
278 	unsigned char *basep;
279 	unsigned char *curp;
280 	unsigned char *endp;
281 } smb_ctxbuf_t;
282 
283 extern int smb_ctxbuf_init(smb_ctxbuf_t *ctx, unsigned char *buf,
284     size_t buflen);
285 extern int smb_ctxbuf_len(smb_ctxbuf_t *ctx);
286 extern int smb_ctxbuf_printf(smb_ctxbuf_t *ctx, const char *fmt, ...);
287 
288 void smb_idmap_check(const char *, idmap_stat);
289 
290 /* Miscellaneous functions */
291 extern void hexdump(unsigned char *, int);
292 extern size_t bintohex(const char *, size_t, char *, size_t);
293 extern size_t hextobin(const char *, size_t, char *, size_t);
294 extern char *strstrip(char *, const char *);
295 extern char *strtrim(char *, const char *);
296 extern char *trim_whitespace(char *);
297 extern void randomize(char *, unsigned);
298 extern void rand_hash(unsigned char *, size_t, unsigned char *, size_t);
299 
300 extern int smb_getdomainname(char *, size_t);
301 extern int smb_getfqdomainname(char *, size_t);
302 
303 typedef enum smb_caseconv {
304 	SMB_CASE_PRESERVE = 0,
305 	SMB_CASE_UPPER,
306 	SMB_CASE_LOWER
307 } smb_caseconv_t;
308 
309 extern int smb_gethostname(char *, size_t, smb_caseconv_t);
310 extern int smb_getfqhostname(char *, size_t);
311 extern int smb_getnetbiosname(char *, size_t);
312 extern struct hostent *smb_gethostbyname(const char *, int *);
313 extern struct hostent *smb_gethostbyaddr(const char *, int, int, int *);
314 
315 #define	SMB_SAMACCT_MAXLEN	(NETBIOS_NAME_SZ + 1)
316 extern int smb_getsamaccount(char *, size_t);
317 
318 extern int smb_get_nameservers(smb_inaddr_t *, int);
319 extern void smb_tonetbiosname(char *, char *, char);
320 
321 extern int smb_chk_hostaccess(smb_inaddr_t *, char *);
322 
323 extern int smb_getnameinfo(smb_inaddr_t *, char *, int, int);
324 
325 extern uint32_t smb_get_netlogon_flags(void);
326 
327 void smb_trace(const char *s);
328 void smb_tracef(const char *fmt, ...);
329 
330 const char *xlate_nt_status(unsigned int);
331 
332 void libsmb_redirect_syslog(__FILE_TAG *fp, int priority);
333 
334 /*
335  * Authentication
336  */
337 
338 #define	SMBAUTH_LM_MAGIC_STR	"KGS!@#$%"
339 
340 #define	SMBAUTH_HASH_SZ		16	/* also LM/NTLM/NTLMv2 Hash size */
341 #define	SMBAUTH_LM_RESP_SZ	24	/* also NTLM Response size */
342 #define	SMBAUTH_LM_PWD_SZ	14	/* LM password size */
343 #define	SMBAUTH_CHAL_SZ		 8	/* both LMv2 and NTLMv2 */
344 #define	SMBAUTH_SESSION_KEY_SZ	SMBAUTH_HASH_SZ
345 #define	SMBAUTH_HEXHASH_SZ	(SMBAUTH_HASH_SZ * 2)
346 
347 #define	SMBAUTH_RETRY		2
348 #define	SMBAUTH_FAILURE		1
349 #define	SMBAUTH_SUCCESS		0
350 #define	MD_DIGEST_LEN		16
351 
352 /*
353  * Name Types
354  *
355  * The list of names near the end of the data blob (i.e. the ndb_names
356  * field of the smb_auth_data_blob_t data structure) can be classify into
357  * the following types:
358  *
359  * 0x0000 Indicates the end of the list.
360  * 0x0001 The name is a NetBIOS machine name (e.g. server name)
361  * 0x0002 The name is an NT Domain NetBIOS name.
362  * 0x0003 The name is the server's DNS hostname.
363  * 0x0004 The name is a W2K Domain name (a DNS name).
364  */
365 #define	SMBAUTH_NAME_TYPE_LIST_END		0x0000
366 #define	SMBAUTH_NAME_TYPE_SERVER_NETBIOS	0x0001
367 #define	SMBAUTH_NAME_TYPE_DOMAIN_NETBIOS	0x0002
368 #define	SMBAUTH_NAME_TYPE_SERVER_DNS		0x0003
369 #define	SMBAUTH_NAME_TYPE_DOMAIN_DNS		0x0004
370 
371 /*
372  * smb_auth_name_entry_t
373  *
374  * Each name entry in the data blob consists of the following 3 fields:
375  *
376  * nne_type - name type
377  * nne_len  - the length of the name
378  * nne_name - the name, in uppercase UCS-2LE Unicode format
379  */
380 typedef struct smb_auth_name_entry {
381 	unsigned short nne_type;
382 	unsigned short nne_len;
383 	smb_wchar_t nne_name[SMB_PI_MAX_DOMAIN * 2];
384 } smb_auth_name_entry_t;
385 
386 /*
387  * smb_auth_data_blob
388  *
389  * The format of this NTLMv2 data blob structure is as follow:
390  *
391  *	- Blob Signature 0x01010000 (4 bytes)
392  * - Reserved (0x00000000) (4 bytes)
393  * - Timestamp Little-endian, 64-bit signed value representing
394  *   the number of tenths of a microsecond since January 1, 1601.
395  *   (8 bytes)
396  * - Client Challenge (8 bytes)
397  * - Unknown1 (4 bytes)
398  * - List of Target Information (variable length)
399  * - Unknown2 (4 bytes)
400  */
401 typedef struct smb_auth_data_blob {
402 	unsigned char ndb_signature[4];
403 	unsigned char ndb_reserved[4];
404 	uint64_t ndb_timestamp;
405 	unsigned char ndb_clnt_challenge[SMBAUTH_CHAL_SZ];
406 	unsigned char ndb_unknown[4];
407 	smb_auth_name_entry_t ndb_names[2];
408 	unsigned char ndb_unknown2[4];
409 } smb_auth_data_blob_t;
410 
411 #define	SMBAUTH_BLOB_MAXLEN (sizeof (smb_auth_data_blob_t))
412 #define	SMBAUTH_CI_MAXLEN   SMBAUTH_LM_RESP_SZ
413 #define	SMBAUTH_CS_MAXLEN   (SMBAUTH_BLOB_MAXLEN + SMBAUTH_HASH_SZ)
414 
415 /*
416  * smb_auth_info_t
417  *
418  * The structure contains all the authentication information
419  * needed for the preparaton of the SMBSessionSetupAndx request
420  * and the user session key.
421  *
422  * hash      - NTLM hash
423  * hash_v2   - NTLMv2 hash
424  * ci_len    - the length of the case-insensitive password
425  * ci        - case-insensitive password
426  *             (If NTLMv2 authentication mechanism is used, it
427  *              represents the LMv2 response. Otherwise, it
428  *              is empty.)
429  * cs_len    - the length of the case-sensitive password
430  * cs        - case-sensitive password
431  *             (If NTLMv2 authentication mechanism is used, it
432  *              represents the NTLMv2 response. Otherwise, it
433  *              represents the NTLM response.)
434  * data_blob - NTLMv2 data blob
435  */
436 typedef struct smb_auth_info {
437 	unsigned char hash[SMBAUTH_HASH_SZ];
438 	unsigned char hash_v2[SMBAUTH_HASH_SZ];
439 	unsigned short ci_len;
440 	unsigned char ci[SMBAUTH_CI_MAXLEN];
441 	unsigned short cs_len;
442 	unsigned char cs[SMBAUTH_CS_MAXLEN];
443 	int lmcompatibility_lvl;
444 	smb_auth_data_blob_t data_blob;
445 } smb_auth_info_t;
446 
447 /*
448  * SMB password management
449  */
450 
451 #define	SMB_PWF_LM	0x01	/* LM hash is present */
452 #define	SMB_PWF_NT	0x02	/* NT hash is present */
453 #define	SMB_PWF_DISABLE	0x04	/* Account is disabled */
454 
455 typedef struct smb_passwd {
456 	uid_t		pw_uid;
457 	uint32_t	pw_flags;
458 	char		pw_name[SMB_USERNAME_MAXLEN];
459 	uint8_t		pw_lmhash[SMBAUTH_HASH_SZ];
460 	uint8_t		pw_nthash[SMBAUTH_HASH_SZ];
461 } smb_passwd_t;
462 
463 /*
464  * Control flags passed to smb_pwd_setcntl
465  */
466 #define	SMB_PWC_DISABLE	0x01
467 #define	SMB_PWC_ENABLE	0x02
468 #define	SMB_PWC_NOLM	0x04
469 #define	SMB_PWC_DELETE	0x08
470 
471 #define	SMB_PWE_SUCCESS		0
472 #define	SMB_PWE_USER_UNKNOWN	1
473 #define	SMB_PWE_USER_DISABLE	2
474 #define	SMB_PWE_CLOSE_FAILED	3
475 #define	SMB_PWE_OPEN_FAILED	4
476 #define	SMB_PWE_WRITE_FAILED	6
477 #define	SMB_PWE_UPDATE_FAILED	7
478 #define	SMB_PWE_STAT_FAILED	8
479 #define	SMB_PWE_BUSY		9
480 #define	SMB_PWE_DENIED		10
481 #define	SMB_PWE_SYSTEM_ERROR	11
482 #define	SMB_PWE_INVALID_PARAM	12
483 #define	SMB_PWE_NO_MEMORY	13
484 #define	SMB_PWE_MAX		14
485 
486 typedef struct smb_pwditer {
487 	void *spi_next;
488 } smb_pwditer_t;
489 
490 typedef struct smb_luser {
491 	char *su_name;
492 	char *su_fullname;
493 	char *su_desc;
494 	uint32_t su_rid;
495 	uint32_t su_ctrl;
496 } smb_luser_t;
497 
498 extern void smb_pwd_init(boolean_t);
499 extern void smb_pwd_fini(void);
500 extern smb_passwd_t *smb_pwd_getpwnam(const char *, smb_passwd_t *);
501 extern smb_passwd_t *smb_pwd_getpwuid(uid_t, smb_passwd_t *);
502 extern int smb_pwd_setpasswd(const char *, const char *);
503 extern int smb_pwd_setcntl(const char *, int);
504 
505 extern int smb_pwd_iteropen(smb_pwditer_t *);
506 extern smb_luser_t *smb_pwd_iterate(smb_pwditer_t *);
507 extern void smb_pwd_iterclose(smb_pwditer_t *);
508 
509 extern int smb_auth_qnd_unicode(smb_wchar_t *, const char *, int);
510 extern int smb_auth_hmac_md5(unsigned char *, int, unsigned char *, int,
511     unsigned char *);
512 
513 /*
514  * A variation on HMAC-MD5 known as HMACT64 is used by Windows systems.
515  * The HMACT64() function is the same as the HMAC-MD5() except that
516  * it truncates the input key to 64 bytes rather than hashing it down
517  * to 16 bytes using the MD5() function.
518  */
519 #define	SMBAUTH_HMACT64(D, Ds, K, Ks, digest) \
520 	smb_auth_hmac_md5(D, Ds, K, (Ks > 64) ? 64 : Ks, digest)
521 
522 extern int smb_auth_DES(unsigned char *, int, unsigned char *, int,
523     unsigned char *, int);
524 extern int smb_auth_RC4(unsigned char *, int, unsigned char *, int,
525     unsigned char *, int);
526 
527 extern int smb_auth_md4(unsigned char *, unsigned char *, int);
528 extern int smb_auth_lm_hash(const char *, unsigned char *);
529 extern int smb_auth_ntlm_hash(const char *, unsigned char *);
530 extern void smb_auth_ntlm2_mkchallenge(char *, const char *, const char *);
531 extern void smb_auth_ntlm2_kxkey(unsigned char *, const char *, const char *,
532     unsigned char *);
533 
534 extern int smb_auth_set_info(char *, char *,
535     unsigned char *, char *, unsigned char *,
536     int, int, smb_auth_info_t *);
537 
538 extern int smb_auth_ntlmv2_hash(unsigned char *,
539 	char *, char *, unsigned char *);
540 
541 boolean_t smb_auth_validate(smb_passwd_t *, char *, char *,
542     uchar_t *, uint_t, uchar_t *, uint_t, uchar_t *, uint_t, uchar_t *);
543 
544 int smb_gen_random_passwd(char *passwd, size_t bufsz);
545 
546 /*
547  * SMB authenticated IPC
548  */
549 extern void smb_ipc_commit(void);
550 extern void smb_ipc_get_user(char *, size_t);
551 extern void smb_ipc_get_passwd(uint8_t *, size_t);
552 extern void smb_ipc_init(void);
553 extern void smb_ipc_rollback(void);
554 extern void smb_ipc_set(char *, uint8_t *);
555 
556 /*
557  * Signing flags:
558  *
559  * SMB_SCF_ENABLE                 Signing is enabled.
560  *
561  * SMB_SCF_REQUIRED               Signing is enabled and required.
562  *                                This flag shouldn't be set if
563  *                                SMB_SCF_ENABLE isn't set.
564  *
565  * SMB_SCF_STARTED                Signing will start after receiving
566  *                                the first non-anonymous SessionSetup
567  *                                request.
568  *
569  * SMB_SCF_KEY_ISSET_THIS_LOGON   Indicates whether the MAC key has just
570  *                                been set for this logon. (prior to
571  *                                sending the SMBSessionSetup request)
572  *
573  */
574 #define	SMB_SCF_ENABLE		0x01
575 #define	SMB_SCF_REQUIRED	0x02
576 #define	SMB_SCF_STARTED		0x04
577 #define	SMB_SCF_KEY_ISSET_THIS_LOGON	0x08
578 
579 /*
580  * Each domain is categorized using the enum values below.
581  * The local domain refers to the local machine and is named
582  * after the local hostname. The primary domain is the domain
583  * that the system joined. All other domains are either
584  * trusted or untrusted, as defined by the primary domain PDC.
585  */
586 typedef enum smb_domain_type {
587 	SMB_DOMAIN_NULL,
588 	SMB_DOMAIN_BUILTIN,
589 	SMB_DOMAIN_LOCAL,
590 	SMB_DOMAIN_PRIMARY,
591 	SMB_DOMAIN_ACCOUNT,
592 	SMB_DOMAIN_TRUSTED,
593 	SMB_DOMAIN_UNTRUSTED,
594 	SMB_DOMAIN_NUM_TYPES
595 } smb_domain_type_t;
596 
597 /*
598  * Information specific to trusted domains
599  */
600 typedef struct smb_domain_trust {
601 	uint32_t		dti_trust_direction;
602 	uint32_t		dti_trust_type;
603 	uint32_t		dti_trust_attrs;
604 } smb_domain_trust_t;
605 
606 /*
607  * DNS information for domain types that this info is
608  * obtained/available. Currently this is only obtained
609  * for the primary domain.
610  */
611 typedef struct smb_domain_dns {
612 	char			ddi_forest[MAXHOSTNAMELEN];
613 	char			ddi_guid[UUID_PRINTABLE_STRING_LENGTH];
614 } smb_domain_dns_t;
615 
616 /*
617  * This is the information that is held about each domain.
618  */
619 typedef struct smb_domain {
620 	list_node_t		di_lnd;
621 	smb_domain_type_t	di_type;
622 	char			di_sid[SMB_SID_STRSZ];
623 	char			di_nbname[NETBIOS_NAME_SZ];
624 	char			di_fqname[MAXHOSTNAMELEN];
625 	smb_sid_t		*di_binsid;
626 	union {
627 		smb_domain_dns_t	di_dns;
628 		smb_domain_trust_t	di_trust;
629 	} di_u;
630 } smb_domain_t;
631 
632 typedef struct smb_trusted_domains {
633 	uint32_t	td_num;
634 	smb_domain_t	*td_domains;
635 } smb_trusted_domains_t;
636 
637 #define	SMB_DOMAIN_SUCCESS		0
638 #define	SMB_DOMAIN_NOMACHINE_SID	1
639 #define	SMB_DOMAIN_NODOMAIN_SID		2
640 #define	SMB_DOMAIN_NODOMAIN_NAME	3
641 #define	SMB_DOMAIN_INTERNAL_ERR		4
642 #define	SMB_DOMAIN_INVALID_ARG		5
643 #define	SMB_DOMAIN_NO_MEMORY		6
644 #define	SMB_DOMAIN_NO_CACHE		7
645 
646 typedef struct smb_dcinfo {
647 	char			dc_name[MAXHOSTNAMELEN];
648 	smb_inaddr_t		dc_addr;
649 	uint32_t		dc_flags;
650 } smb_dcinfo_t;
651 
652 /*
653  * This structure could contain information about
654  * the primary domain the name of selected domain controller
655  * for the primary domain and a list of trusted domains if
656  * any. The "ex" in the structure name stands for extended.
657  * This is to differentiate this structure from smb_domain_t
658  * which only contains information about a single domain.
659  */
660 typedef struct smb_domainex {
661 	smb_dcinfo_t		d_dci;
662 	smb_domain_t		d_primary;
663 	smb_trusted_domains_t	d_trusted;
664 } smb_domainex_t;
665 
666 int smb_domain_init(uint32_t);
667 void smb_domain_fini(void);
668 void smb_domain_show(void);
669 void smb_domain_save(void);
670 boolean_t smb_domain_lookup_name(char *, smb_domain_t *);
671 boolean_t smb_domain_lookup_sid(smb_sid_t *, smb_domain_t *);
672 boolean_t smb_domain_lookup_type(smb_domain_type_t, smb_domain_t *);
673 boolean_t smb_domain_getinfo(smb_domainex_t *);
674 void smb_domain_update(smb_domainex_t *);
675 uint32_t smb_domain_start_update(void);
676 void smb_domain_end_update(void);
677 void smb_domain_set_basic_info(char *, char *, char *, smb_domain_t *);
678 void smb_domain_set_dns_info(char *, char *, char *, char *, char *,
679     smb_domain_t *);
680 void smb_domain_set_trust_info(char *, char *, char *,
681     uint32_t, uint32_t, uint32_t, smb_domain_t *);
682 void smb_domain_current_dc(smb_dcinfo_t *);
683 void smb_domain_bad_dc(void);
684 
685 typedef struct smb_gsid {
686 	smb_sid_t *gs_sid;
687 	uint16_t gs_type;
688 } smb_gsid_t;
689 
690 struct sqlite_vm;
691 struct sqlite;
692 
693 typedef struct smb_giter {
694 	struct sqlite_vm	*sgi_vm;
695 	struct sqlite		*sgi_db;
696 	uint32_t		sgi_nerr;
697 } smb_giter_t;
698 
699 typedef struct smb_group {
700 	char			*sg_name;
701 	char			*sg_cmnt;
702 	uint32_t		sg_attr;
703 	uint32_t		sg_rid;
704 	smb_gsid_t		sg_id;
705 	smb_domain_type_t	sg_domain;
706 	smb_privset_t		*sg_privs;
707 	uint32_t		sg_nmembers;
708 	smb_gsid_t		*sg_members;
709 } smb_group_t;
710 
711 int smb_lgrp_start(void);
712 void smb_lgrp_stop(void);
713 int smb_lgrp_add(char *, char *);
714 int smb_lgrp_rename(char *, char *);
715 int smb_lgrp_delete(char *);
716 int smb_lgrp_setcmnt(char *, char *);
717 int smb_lgrp_getcmnt(char *, char **);
718 int smb_lgrp_getpriv(char *, uint8_t, boolean_t *);
719 int smb_lgrp_setpriv(char *, uint8_t, boolean_t);
720 int smb_lgrp_add_member(char *, smb_sid_t *, uint16_t);
721 int smb_lgrp_del_member(char *, smb_sid_t *, uint16_t);
722 int smb_lgrp_getbyname(char *, smb_group_t *);
723 int smb_lgrp_getbyrid(uint32_t, smb_domain_type_t, smb_group_t *);
724 void smb_lgrp_free(smb_group_t *);
725 uint32_t smb_lgrp_err_to_ntstatus(uint32_t);
726 boolean_t smb_lgrp_is_member(smb_group_t *, smb_sid_t *);
727 char *smb_lgrp_strerror(int);
728 int smb_lgrp_iteropen(smb_giter_t *);
729 void smb_lgrp_iterclose(smb_giter_t *);
730 boolean_t smb_lgrp_itererror(smb_giter_t *);
731 int smb_lgrp_iterate(smb_giter_t *, smb_group_t *);
732 
733 int smb_lookup_sid(const char *, lsa_account_t *);
734 int smb_lookup_lsid(const char *, lsa_account_t *);
735 int smb_lookup_name(const char *, sid_type_t, lsa_account_t *);
736 int smb_lookup_lname(const char *, sid_type_t, lsa_account_t *);
737 
738 #define	SMB_LGRP_SUCCESS		0
739 #define	SMB_LGRP_INVALID_ARG		1
740 #define	SMB_LGRP_INVALID_MEMBER		2
741 #define	SMB_LGRP_INVALID_NAME		3
742 #define	SMB_LGRP_NOT_FOUND		4
743 #define	SMB_LGRP_EXISTS			5
744 #define	SMB_LGRP_NO_SID			6
745 #define	SMB_LGRP_NO_LOCAL_SID		7
746 #define	SMB_LGRP_SID_NOTLOCAL		8
747 #define	SMB_LGRP_WKSID			9
748 #define	SMB_LGRP_NO_MEMORY		10
749 #define	SMB_LGRP_DB_ERROR		11
750 #define	SMB_LGRP_DBINIT_ERROR		12
751 #define	SMB_LGRP_INTERNAL_ERROR		13
752 #define	SMB_LGRP_MEMBER_IN_GROUP	14
753 #define	SMB_LGRP_MEMBER_NOT_IN_GROUP	15
754 #define	SMB_LGRP_NO_SUCH_PRIV		16
755 #define	SMB_LGRP_NO_SUCH_DOMAIN		17
756 #define	SMB_LGRP_PRIV_HELD		18
757 #define	SMB_LGRP_PRIV_NOT_HELD		19
758 #define	SMB_LGRP_BAD_DATA		20
759 #define	SMB_LGRP_NO_MORE		21
760 #define	SMB_LGRP_DBOPEN_FAILED		22
761 #define	SMB_LGRP_DBEXEC_FAILED		23
762 #define	SMB_LGRP_DBINIT_FAILED		24
763 #define	SMB_LGRP_DOMLKP_FAILED		25
764 #define	SMB_LGRP_DOMINS_FAILED		26
765 #define	SMB_LGRP_INSERT_FAILED		27
766 #define	SMB_LGRP_DELETE_FAILED		28
767 #define	SMB_LGRP_UPDATE_FAILED		29
768 #define	SMB_LGRP_LOOKUP_FAILED		30
769 #define	SMB_LGRP_NOT_SUPPORTED		31
770 #define	SMB_LGRP_OFFLINE		32
771 #define	SMB_LGRP_POSIXCREATE_FAILED	33
772 
773 #define	SMB_LGRP_COMMENT_MAX	256
774 
775 /*
776  * values for smb_nic_t.smbflags
777  */
778 #define	SMB_NICF_NBEXCL		0x01	/* Excluded from Netbios activities */
779 #define	SMB_NICF_ALIAS		0x02	/* This is an alias */
780 
781 /*
782  * smb_nic_t
783  *     nic_host		actual host name
784  *     nic_nbname	16-byte NetBIOS host name
785  */
786 typedef struct {
787 	char		nic_host[MAXHOSTNAMELEN];
788 	char		nic_nbname[NETBIOS_NAME_SZ];
789 	char		nic_cmnt[SMB_PI_MAX_COMMENT];
790 	char		nic_ifname[LIFNAMSIZ];
791 	smb_inaddr_t	nic_ip;
792 	uint32_t	nic_mask;
793 	uint32_t	nic_bcast;
794 	uint32_t	nic_smbflags;
795 	uint64_t	nic_sysflags;
796 } smb_nic_t;
797 
798 typedef struct smb_niciter {
799 	smb_nic_t ni_nic;
800 	int ni_cookie;
801 	int ni_seqnum;
802 } smb_niciter_t;
803 
804 /* NIC config functions */
805 int smb_nic_init(void);
806 void smb_nic_fini(void);
807 int smb_nic_getnum(char *);
808 int smb_nic_addhost(const char *, const char *, int, const char **);
809 int smb_nic_delhost(const char *);
810 int smb_nic_getfirst(smb_niciter_t *);
811 int smb_nic_getnext(smb_niciter_t *);
812 boolean_t smb_nic_is_local(smb_inaddr_t *);
813 boolean_t smb_nic_is_same_subnet(smb_inaddr_t *);
814 
815 #define	SMB_NIC_SUCCESS			0
816 #define	SMB_NIC_INVALID_ARG		1
817 #define	SMB_NIC_NOT_FOUND		2
818 #define	SMB_NIC_NO_HOST			3
819 #define	SMB_NIC_NO_MEMORY		4
820 #define	SMB_NIC_DB_ERROR		5
821 #define	SMB_NIC_DBINIT_ERROR		6
822 #define	SMB_NIC_BAD_DATA		7
823 #define	SMB_NIC_NO_MORE			8
824 #define	SMB_NIC_DBOPEN_FAILED		9
825 #define	SMB_NIC_DBEXEC_FAILED		10
826 #define	SMB_NIC_DBINIT_FAILED		11
827 #define	SMB_NIC_INSERT_FAILED		12
828 #define	SMB_NIC_DELETE_FAILED		13
829 #define	SMB_NIC_SOCK			14
830 #define	SMB_NIC_IOCTL			15
831 #define	SMB_NIC_CHANGED			16
832 
833 /*
834  * Well-known account structure
835  *
836  * A security identifier (SID) is a unique value of variable length that
837  * is used to identify a security principal or security group in
838  * Windows. Well-known SIDs are a group of SIDs that identify generic
839  * users or generic groups. Their values remain constant across all
840  * operating systems.
841  *
842  * This structure is defined to store these SIDs and other related
843  * information about them (e.g. account and domain names) in a
844  * predefined table.
845  */
846 typedef struct smb_wka {
847 	uint8_t		wka_domidx;
848 	char		*wka_sid;
849 	char		*wka_name;
850 	uint16_t	wka_type;
851 	uint16_t	wka_flags;
852 	char		*wka_desc;
853 	smb_sid_t	*wka_binsid;
854 } smb_wka_t;
855 
856 /*
857  * Defined values for smb_wka.wka_flags
858  *
859  * SMB_WKAFLG_LGRP_ENABLE		Can be added as local group
860  */
861 #define	SMB_WKAFLG_LGRP_ENABLE	0x1
862 
863 /*
864  * Well-known account interfaces
865  */
866 smb_wka_t *smb_wka_lookup_builtin(const char *);
867 smb_wka_t *smb_wka_lookup_name(const char *);
868 smb_wka_t *smb_wka_lookup_sid(smb_sid_t *);
869 smb_sid_t *smb_wka_get_sid(const char *);
870 char *smb_wka_get_domain(int);
871 uint32_t smb_wka_token_groups(uint32_t, smb_ids_t *);
872 
873 /*
874  * In memory account representation
875  */
876 typedef struct smb_account {
877 	char		*a_name;
878 	char		*a_domain;
879 	uint16_t	a_type;
880 	smb_sid_t	*a_sid;
881 	smb_sid_t	*a_domsid;
882 	uint32_t	a_rid;
883 	uint32_t	a_flags;
884 } smb_account_t;
885 
886 uint32_t smb_sam_lookup_name(char *, char *, uint16_t, smb_account_t *);
887 uint32_t smb_sam_lookup_sid(smb_sid_t *, smb_account_t *);
888 int smb_sam_usr_cnt(void);
889 uint32_t smb_sam_usr_groups(smb_sid_t *, smb_ids_t *);
890 int smb_sam_grp_cnt(smb_domain_type_t);
891 void smb_account_free(smb_account_t *);
892 boolean_t smb_account_validate(smb_account_t *);
893 
894 /*
895  * Security Descriptor functions.
896  */
897 uint32_t smb_sd_read(char *path, smb_sd_t *, uint32_t);
898 uint32_t smb_sd_write(char *path, smb_sd_t *, uint32_t);
899 uint32_t smb_sd_fromfs(smb_fssd_t *, smb_sd_t *);
900 
901 /* Kernel Module Interface */
902 int smb_kmod_bind(void);
903 boolean_t smb_kmod_isbound(void);
904 int smb_kmod_setcfg(smb_kmod_cfg_t *);
905 int smb_kmod_setgmtoff(int32_t);
906 int smb_kmod_start(int, int, int);
907 void smb_kmod_stop(void);
908 int smb_kmod_event_notify(uint32_t);
909 void smb_kmod_unbind(void);
910 int smb_kmod_share(nvlist_t *);
911 int smb_kmod_unshare(nvlist_t *);
912 int smb_kmod_shareinfo(char *, boolean_t *);
913 int smb_kmod_get_open_num(smb_opennum_t *);
914 int smb_kmod_enum(smb_netsvc_t *);
915 smb_netsvc_t *smb_kmod_enum_init(smb_svcenum_t *);
916 void smb_kmod_enum_fini(smb_netsvc_t *);
917 int smb_kmod_session_close(const char *, const char *);
918 int smb_kmod_file_close(uint32_t);
919 int smb_kmod_get_spool_doc(uint32_t *, char *, char *, smb_inaddr_t *);
920 
921 void smb_name_parse(char *, char **, char **);
922 uint32_t smb_name_validate_share(const char *);
923 uint32_t smb_name_validate_account(const char *);
924 uint32_t smb_name_validate_domain(const char *);
925 uint32_t smb_name_validate_nbdomain(const char *);
926 uint32_t smb_name_validate_workgroup(const char *);
927 uint32_t smb_name_validate_rpath(const char *);
928 
929 /*
930  * Interposer library validation
931  */
932 #define	SMBEX_VERSION	1
933 #define	SMBEX_KEY	"82273fdc-e32a-18c3-3f78-827929dc23ea"
934 typedef struct smbex_version {
935 	uint32_t v_version;
936 	uuid_t v_uuid;
937 } smbex_version_t;
938 void *smb_dlopen(void);
939 void smb_dlclose(void *);
940 
941 /*
942  * General purpose multi-thread safe cache based on
943  * AVL tree
944  */
945 typedef struct smb_cache {
946 	avl_tree_t	ch_cache;
947 	rwlock_t	ch_cache_lck;
948 	uint32_t	ch_state;
949 	uint32_t	ch_nops;
950 	uint32_t	ch_wait;
951 	uint32_t	ch_sequence;
952 	size_t		ch_datasz;
953 	mutex_t		ch_mtx;
954 	cond_t		ch_cv;
955 	void		(*ch_free)(void *);
956 	void		(*ch_copy)(const void *, void *, size_t);
957 } smb_cache_t;
958 
959 typedef struct smb_cache_node {
960 	avl_node_t	cn_link;
961 	void		*cn_data;
962 } smb_cache_node_t;
963 
964 typedef struct smb_cache_cursor {
965 	void		*cc_next;
966 	uint32_t	cc_sequence;
967 } smb_cache_cursor_t;
968 
969 /*
970  * flags used with smb_cache_add()
971  *
972  * SMB_CACHE_ADD	If object doesn't exist add, otherwise fail
973  * SMB_CACHE_REPLACE	If object doesn't exist add, otherwise replace
974  */
975 #define	SMB_CACHE_ADD		1
976 #define	SMB_CACHE_REPLACE	2
977 
978 void smb_cache_create(smb_cache_t *, uint32_t,
979     int (*cmpfn) (const void *, const void *), void (*freefn)(void *),
980     void (*copyfn)(const void *, void *, size_t), size_t);
981 void smb_cache_destroy(smb_cache_t *);
982 void smb_cache_flush(smb_cache_t *);
983 uint32_t smb_cache_num(smb_cache_t *);
984 int smb_cache_refreshing(smb_cache_t *);
985 void smb_cache_ready(smb_cache_t *);
986 int smb_cache_add(smb_cache_t *, const void *, int);
987 void smb_cache_remove(smb_cache_t *, const void *);
988 void smb_cache_iterinit(smb_cache_t *, smb_cache_cursor_t *);
989 boolean_t smb_cache_iterate(smb_cache_t *, smb_cache_cursor_t *, void *);
990 
991 /*
992  * Values returned by smb_reparse_stat()
993  */
994 #define	SMB_REPARSE_NOTFOUND	1	/* object does not exist */
995 #define	SMB_REPARSE_NOTREPARSE	2	/* object is NOT a reparse point */
996 #define	SMB_REPARSE_ISREPARSE	3	/* object is a reparse point */
997 
998 /*
999  * Reparse Point API
1000  */
1001 int smb_reparse_stat(const char *, uint32_t *);
1002 int smb_reparse_svcadd(const char *, const char *, const char *);
1003 int smb_reparse_svcdel(const char *, const char *);
1004 int smb_reparse_svcget(const char *, const char *, char **);
1005 
1006 uint32_t smb_get_txid(void);
1007 
1008 void smb_syslog(int, const char *, ...);
1009 void smb_vsyslog(int, const char *, va_list ap);
1010 char *smb_syslog_fmt_m(char *, int, const char *, int);
1011 
1012 #ifdef	__cplusplus
1013 }
1014 #endif
1015 
1016 #endif	/* _LIBSMB_H */
1017