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 2022 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_CIPHERS,
165 	SMB_CI_NETLOGON_FLAGS,
166 	SMB_CI_SHORT_NAMES,
167 
168 	SMB_CI_MAX
169 } smb_cfg_id_t;
170 
171 /* SMF helper functions */
172 extern smb_scfhandle_t *smb_smf_scf_init(char *);
173 extern void smb_smf_scf_fini(smb_scfhandle_t *);
174 extern int smb_smf_start_transaction(smb_scfhandle_t *);
175 extern int smb_smf_end_transaction(smb_scfhandle_t *);
176 extern int smb_smf_set_string_property(smb_scfhandle_t *, char *, char *);
177 extern int smb_smf_get_string_property(smb_scfhandle_t *, char *,
178     char *, size_t);
179 extern int smb_smf_set_integer_property(smb_scfhandle_t *, char *, int64_t);
180 extern int smb_smf_get_integer_property(smb_scfhandle_t *, char *, int64_t *);
181 extern int smb_smf_set_boolean_property(smb_scfhandle_t *, char *, uint8_t);
182 extern int smb_smf_get_boolean_property(smb_scfhandle_t *, char *, uint8_t *);
183 extern int smb_smf_set_opaque_property(smb_scfhandle_t *, char *,
184     void *, size_t);
185 extern int smb_smf_get_opaque_property(smb_scfhandle_t *, char *,
186     void *, size_t);
187 extern int smb_smf_create_service_pgroup(smb_scfhandle_t *, char *);
188 extern int smb_smf_delete_property(smb_scfhandle_t *, char *);
189 extern int smb_smf_restart_service(void);
190 extern int smb_smf_maintenance_mode(void);
191 
192 /* ZFS interface */
193 struct libzfs_handle;
194 int smb_getdataset(struct libzfs_handle *, const char *, char *, size_t);
195 
196 /* Configuration management functions  */
197 extern int smb_config_get(smb_cfg_id_t, char *, int);
198 extern char *smb_config_getname(smb_cfg_id_t);
199 extern int smb_config_getstr(smb_cfg_id_t, char *, int);
200 extern int smb_config_getnum(smb_cfg_id_t, int64_t *);
201 extern boolean_t smb_config_getbool(smb_cfg_id_t);
202 
203 extern int smb_config_set(smb_cfg_id_t, char *);
204 extern int smb_config_setstr(smb_cfg_id_t, char *);
205 extern int smb_config_setnum(smb_cfg_id_t, int64_t);
206 extern int smb_config_setbool(smb_cfg_id_t, boolean_t);
207 
208 extern boolean_t smb_config_get_ads_enable(void);
209 extern int smb_config_get_debug(void);
210 extern uint8_t smb_config_get_fg_flag(void);
211 extern char *smb_config_get_localsid(void);
212 extern int smb_config_get_localuuid(uuid_t);
213 extern int smb_config_secmode_fromstr(char *);
214 extern char *smb_config_secmode_tostr(int);
215 extern int smb_config_get_secmode(void);
216 extern int smb_config_set_secmode(int);
217 extern int smb_config_set_idmap_domain(char *);
218 extern int smb_config_refresh_idmap(void);
219 extern int smb_config_getip(smb_cfg_id_t, smb_inaddr_t *);
220 extern void smb_config_get_version(smb_version_t *);
221 uint32_t smb_config_get_execinfo(char *, char *, size_t);
222 extern void smb_config_get_negtok(uchar_t *, uint32_t *);
223 
224 extern uint32_t smb_config_get_max_protocol(void);
225 extern uint32_t smb_config_get_min_protocol(void);
226 extern uint32_t smb_convert_version_str(const char *);
227 extern void smb_config_upgrade(void);
228 extern uint32_t smb_config_get_encrypt_ciphers(void);
229 extern int smb_convert_encrypt_ciphers(char *);
230 
231 extern smb_cfg_val_t smb_config_get_require(smb_cfg_id_t);
232 
233 extern void smb_load_kconfig(smb_kmod_cfg_t *kcfg);
234 extern uint32_t smb_crc_gen(uint8_t *, size_t);
235 
236 extern boolean_t smb_match_netlogon_seqnum(void);
237 extern int smb_setdomainprops(char *, char *, char *);
238 extern void smb_update_netlogon_seqnum(void);
239 
240 /* maximum password length on Windows 2000 and above */
241 #define	SMB_PASSWD_MAXLEN	127
242 #define	SMB_USERNAME_MAXLEN	40
243 
244 /* See also: smb_joininfo_xdr() */
245 typedef struct smb_joininfo {
246 	uint32_t mode;
247 	char domain_name[MAXHOSTNAMELEN];
248 	char container_name[MAXHOSTNAMELEN];
249 	char domain_username[SMB_USERNAME_MAXLEN + 1];
250 	char domain_passwd[SMB_PASSWD_MAXLEN + 1];
251 } smb_joininfo_t;
252 
253 /* See also: smb_joinres_xdr() */
254 typedef struct smb_joinres {
255 	uint32_t status;
256 	int join_err;
257 	char dc_name[MAXHOSTNAMELEN];
258 } smb_joinres_t;
259 
260 /* APIs to communicate with SMB daemon via door calls */
261 int smb_join(smb_joininfo_t *, smb_joinres_t *info);
262 bool_t smb_joininfo_xdr(XDR *, smb_joininfo_t *);
263 bool_t smb_joinres_xdr(XDR *, smb_joinres_t *);
264 boolean_t smb_find_ads_server(char *, char *, int);
265 int smb_notify_dc_changed(void);
266 
267 extern void smb_config_getdomaininfo(char *, char *, char *, char *, char *);
268 extern void smb_config_setdomaininfo(char *, char *, char *, char *, char *);
269 extern uint32_t smb_get_dcinfo(char *, uint32_t, smb_inaddr_t *);
270 
271 /*
272  * buffer context structure. This is used to keep track of the buffer
273  * context.
274  *
275  * basep:  points to the beginning of the buffer
276  * curp:   points to the current offset
277  * endp:   points to the limit of the buffer
278  */
279 typedef struct {
280 	unsigned char *basep;
281 	unsigned char *curp;
282 	unsigned char *endp;
283 } smb_ctxbuf_t;
284 
285 extern int smb_ctxbuf_init(smb_ctxbuf_t *ctx, unsigned char *buf,
286     size_t buflen);
287 extern int smb_ctxbuf_len(smb_ctxbuf_t *ctx);
288 extern int smb_ctxbuf_printf(smb_ctxbuf_t *ctx, const char *fmt, ...);
289 
290 void smb_idmap_check(const char *, idmap_stat);
291 
292 /* Miscellaneous functions */
293 extern void hexdump(unsigned char *, int);
294 extern size_t bintohex(const char *, size_t, char *, size_t);
295 extern size_t hextobin(const char *, size_t, char *, size_t);
296 extern char *strstrip(char *, const char *);
297 extern char *strtrim(char *, const char *);
298 extern char *trim_whitespace(char *);
299 extern void randomize(char *, unsigned);
300 extern void rand_hash(unsigned char *, size_t, unsigned char *, size_t);
301 
302 extern int smb_getdomainname(char *, size_t);
303 extern int smb_getfqdomainname(char *, size_t);
304 
305 typedef enum smb_caseconv {
306 	SMB_CASE_PRESERVE = 0,
307 	SMB_CASE_UPPER,
308 	SMB_CASE_LOWER
309 } smb_caseconv_t;
310 
311 extern int smb_gethostname(char *, size_t, smb_caseconv_t);
312 extern int smb_getfqhostname(char *, size_t);
313 extern int smb_getnetbiosname(char *, size_t);
314 extern struct hostent *smb_gethostbyname(const char *, int *);
315 extern struct hostent *smb_gethostbyaddr(const char *, int, int, int *);
316 
317 #define	SMB_SAMACCT_MAXLEN	(NETBIOS_NAME_SZ + 1)
318 extern int smb_getsamaccount(char *, size_t);
319 
320 extern int smb_get_nameservers(smb_inaddr_t *, int);
321 extern void smb_tonetbiosname(char *, char *, char);
322 
323 extern int smb_chk_hostaccess(smb_inaddr_t *, char *);
324 
325 extern int smb_getnameinfo(smb_inaddr_t *, char *, int, int);
326 
327 extern uint32_t smb_get_netlogon_flags(void);
328 
329 void smb_trace(const char *s);
330 void smb_tracef(const char *fmt, ...);
331 
332 const char *xlate_nt_status(unsigned int);
333 
334 void libsmb_redirect_syslog(__FILE_TAG *fp, int priority);
335 
336 /*
337  * Authentication
338  */
339 
340 #define	SMBAUTH_LM_MAGIC_STR	"KGS!@#$%"
341 
342 #define	SMBAUTH_HASH_SZ		16	/* also LM/NTLM/NTLMv2 Hash size */
343 #define	SMBAUTH_LM_RESP_SZ	24	/* also NTLM Response size */
344 #define	SMBAUTH_LM_PWD_SZ	14	/* LM password size */
345 #define	SMBAUTH_CHAL_SZ		 8	/* both LMv2 and NTLMv2 */
346 #define	SMBAUTH_SESSION_KEY_SZ	SMBAUTH_HASH_SZ
347 #define	SMBAUTH_HEXHASH_SZ	(SMBAUTH_HASH_SZ * 2)
348 
349 #define	SMBAUTH_RETRY		2
350 #define	SMBAUTH_FAILURE		1
351 #define	SMBAUTH_SUCCESS		0
352 #define	MD_DIGEST_LEN		16
353 
354 /*
355  * Name Types
356  *
357  * The list of names near the end of the data blob (i.e. the ndb_names
358  * field of the smb_auth_data_blob_t data structure) can be classify into
359  * the following types:
360  *
361  * 0x0000 Indicates the end of the list.
362  * 0x0001 The name is a NetBIOS machine name (e.g. server name)
363  * 0x0002 The name is an NT Domain NetBIOS name.
364  * 0x0003 The name is the server's DNS hostname.
365  * 0x0004 The name is a W2K Domain name (a DNS name).
366  */
367 #define	SMBAUTH_NAME_TYPE_LIST_END		0x0000
368 #define	SMBAUTH_NAME_TYPE_SERVER_NETBIOS	0x0001
369 #define	SMBAUTH_NAME_TYPE_DOMAIN_NETBIOS	0x0002
370 #define	SMBAUTH_NAME_TYPE_SERVER_DNS		0x0003
371 #define	SMBAUTH_NAME_TYPE_DOMAIN_DNS		0x0004
372 
373 /*
374  * smb_auth_name_entry_t
375  *
376  * Each name entry in the data blob consists of the following 3 fields:
377  *
378  * nne_type - name type
379  * nne_len  - the length of the name
380  * nne_name - the name, in uppercase UCS-2LE Unicode format
381  */
382 typedef struct smb_auth_name_entry {
383 	unsigned short nne_type;
384 	unsigned short nne_len;
385 	smb_wchar_t nne_name[SMB_PI_MAX_DOMAIN * 2];
386 } smb_auth_name_entry_t;
387 
388 /*
389  * smb_auth_data_blob
390  *
391  * The format of this NTLMv2 data blob structure is as follow:
392  *
393  *	- Blob Signature 0x01010000 (4 bytes)
394  * - Reserved (0x00000000) (4 bytes)
395  * - Timestamp Little-endian, 64-bit signed value representing
396  *   the number of tenths of a microsecond since January 1, 1601.
397  *   (8 bytes)
398  * - Client Challenge (8 bytes)
399  * - Unknown1 (4 bytes)
400  * - List of Target Information (variable length)
401  * - Unknown2 (4 bytes)
402  */
403 typedef struct smb_auth_data_blob {
404 	unsigned char ndb_signature[4];
405 	unsigned char ndb_reserved[4];
406 	uint64_t ndb_timestamp;
407 	unsigned char ndb_clnt_challenge[SMBAUTH_CHAL_SZ];
408 	unsigned char ndb_unknown[4];
409 	smb_auth_name_entry_t ndb_names[2];
410 	unsigned char ndb_unknown2[4];
411 } smb_auth_data_blob_t;
412 
413 #define	SMBAUTH_BLOB_MAXLEN (sizeof (smb_auth_data_blob_t))
414 #define	SMBAUTH_CI_MAXLEN   SMBAUTH_LM_RESP_SZ
415 #define	SMBAUTH_CS_MAXLEN   (SMBAUTH_BLOB_MAXLEN + SMBAUTH_HASH_SZ)
416 
417 /*
418  * smb_auth_info_t
419  *
420  * The structure contains all the authentication information
421  * needed for the preparaton of the SMBSessionSetupAndx request
422  * and the user session key.
423  *
424  * hash      - NTLM hash
425  * hash_v2   - NTLMv2 hash
426  * ci_len    - the length of the case-insensitive password
427  * ci        - case-insensitive password
428  *             (If NTLMv2 authentication mechanism is used, it
429  *              represents the LMv2 response. Otherwise, it
430  *              is empty.)
431  * cs_len    - the length of the case-sensitive password
432  * cs        - case-sensitive password
433  *             (If NTLMv2 authentication mechanism is used, it
434  *              represents the NTLMv2 response. Otherwise, it
435  *              represents the NTLM response.)
436  * data_blob - NTLMv2 data blob
437  */
438 typedef struct smb_auth_info {
439 	unsigned char hash[SMBAUTH_HASH_SZ];
440 	unsigned char hash_v2[SMBAUTH_HASH_SZ];
441 	unsigned short ci_len;
442 	unsigned char ci[SMBAUTH_CI_MAXLEN];
443 	unsigned short cs_len;
444 	unsigned char cs[SMBAUTH_CS_MAXLEN];
445 	int lmcompatibility_lvl;
446 	smb_auth_data_blob_t data_blob;
447 } smb_auth_info_t;
448 
449 /*
450  * SMB password management
451  */
452 
453 #define	SMB_PWF_LM	0x01	/* LM hash is present */
454 #define	SMB_PWF_NT	0x02	/* NT hash is present */
455 #define	SMB_PWF_DISABLE	0x04	/* Account is disabled */
456 
457 typedef struct smb_passwd {
458 	uid_t		pw_uid;
459 	uint32_t	pw_flags;
460 	char		pw_name[SMB_USERNAME_MAXLEN];
461 	uint8_t		pw_lmhash[SMBAUTH_HASH_SZ];
462 	uint8_t		pw_nthash[SMBAUTH_HASH_SZ];
463 } smb_passwd_t;
464 
465 /*
466  * Control flags passed to smb_pwd_setcntl
467  */
468 #define	SMB_PWC_DISABLE	0x01
469 #define	SMB_PWC_ENABLE	0x02
470 #define	SMB_PWC_NOLM	0x04
471 #define	SMB_PWC_DELETE	0x08
472 
473 #define	SMB_PWE_SUCCESS		0
474 #define	SMB_PWE_USER_UNKNOWN	1
475 #define	SMB_PWE_USER_DISABLE	2
476 #define	SMB_PWE_CLOSE_FAILED	3
477 #define	SMB_PWE_OPEN_FAILED	4
478 #define	SMB_PWE_WRITE_FAILED	6
479 #define	SMB_PWE_UPDATE_FAILED	7
480 #define	SMB_PWE_STAT_FAILED	8
481 #define	SMB_PWE_BUSY		9
482 #define	SMB_PWE_DENIED		10
483 #define	SMB_PWE_SYSTEM_ERROR	11
484 #define	SMB_PWE_INVALID_PARAM	12
485 #define	SMB_PWE_NO_MEMORY	13
486 #define	SMB_PWE_MAX		14
487 
488 typedef struct smb_pwditer {
489 	void *spi_next;
490 } smb_pwditer_t;
491 
492 typedef struct smb_luser {
493 	char *su_name;
494 	char *su_fullname;
495 	char *su_desc;
496 	uint32_t su_rid;
497 	uint32_t su_ctrl;
498 } smb_luser_t;
499 
500 extern void smb_pwd_init(boolean_t);
501 extern void smb_pwd_fini(void);
502 extern smb_passwd_t *smb_pwd_getpwnam(const char *, smb_passwd_t *);
503 extern smb_passwd_t *smb_pwd_getpwuid(uid_t, smb_passwd_t *);
504 extern int smb_pwd_setpasswd(const char *, const char *);
505 extern int smb_pwd_setcntl(const char *, int);
506 
507 extern int smb_pwd_iteropen(smb_pwditer_t *);
508 extern smb_luser_t *smb_pwd_iterate(smb_pwditer_t *);
509 extern void smb_pwd_iterclose(smb_pwditer_t *);
510 
511 extern int smb_auth_qnd_unicode(smb_wchar_t *, const char *, int);
512 extern int smb_auth_hmac_md5(unsigned char *, int, unsigned char *, int,
513     unsigned char *);
514 
515 /*
516  * A variation on HMAC-MD5 known as HMACT64 is used by Windows systems.
517  * The HMACT64() function is the same as the HMAC-MD5() except that
518  * it truncates the input key to 64 bytes rather than hashing it down
519  * to 16 bytes using the MD5() function.
520  */
521 #define	SMBAUTH_HMACT64(D, Ds, K, Ks, digest) \
522 	smb_auth_hmac_md5(D, Ds, K, (Ks > 64) ? 64 : Ks, digest)
523 
524 extern int smb_auth_DES(unsigned char *, int, unsigned char *, int,
525     unsigned char *, int);
526 extern int smb_auth_RC4(unsigned char *, int, unsigned char *, int,
527     unsigned char *, int);
528 
529 extern int smb_auth_md4(unsigned char *, unsigned char *, int);
530 extern int smb_auth_lm_hash(const char *, unsigned char *);
531 extern int smb_auth_ntlm_hash(const char *, unsigned char *);
532 extern void smb_auth_ntlm2_mkchallenge(char *, const char *, const char *);
533 extern void smb_auth_ntlm2_kxkey(unsigned char *, const char *, const char *,
534     unsigned char *);
535 
536 extern int smb_auth_set_info(char *, char *,
537     unsigned char *, char *, unsigned char *,
538     int, int, smb_auth_info_t *);
539 
540 extern int smb_auth_ntlmv2_hash(unsigned char *,
541 	char *, char *, unsigned char *);
542 
543 boolean_t smb_auth_validate(smb_passwd_t *, char *, char *,
544     uchar_t *, uint_t, uchar_t *, uint_t, uchar_t *, uint_t, uchar_t *);
545 
546 int smb_gen_random_passwd(char *passwd, size_t bufsz);
547 
548 /*
549  * SMB authenticated IPC
550  */
551 extern void smb_ipc_commit(void);
552 extern void smb_ipc_get_user(char *, size_t);
553 extern void smb_ipc_get_passwd(uint8_t *, size_t);
554 extern void smb_ipc_init(void);
555 extern void smb_ipc_rollback(void);
556 extern void smb_ipc_set(char *, uint8_t *);
557 
558 /*
559  * Signing flags:
560  *
561  * SMB_SCF_ENABLE                 Signing is enabled.
562  *
563  * SMB_SCF_REQUIRED               Signing is enabled and required.
564  *                                This flag shouldn't be set if
565  *                                SMB_SCF_ENABLE isn't set.
566  *
567  * SMB_SCF_STARTED                Signing will start after receiving
568  *                                the first non-anonymous SessionSetup
569  *                                request.
570  *
571  * SMB_SCF_KEY_ISSET_THIS_LOGON   Indicates whether the MAC key has just
572  *                                been set for this logon. (prior to
573  *                                sending the SMBSessionSetup request)
574  *
575  */
576 #define	SMB_SCF_ENABLE		0x01
577 #define	SMB_SCF_REQUIRED	0x02
578 #define	SMB_SCF_STARTED		0x04
579 #define	SMB_SCF_KEY_ISSET_THIS_LOGON	0x08
580 
581 /*
582  * Each domain is categorized using the enum values below.
583  * The local domain refers to the local machine and is named
584  * after the local hostname. The primary domain is the domain
585  * that the system joined. All other domains are either
586  * trusted or untrusted, as defined by the primary domain PDC.
587  */
588 typedef enum smb_domain_type {
589 	SMB_DOMAIN_NULL,
590 	SMB_DOMAIN_BUILTIN,
591 	SMB_DOMAIN_LOCAL,
592 	SMB_DOMAIN_PRIMARY,
593 	SMB_DOMAIN_ACCOUNT,
594 	SMB_DOMAIN_TRUSTED,
595 	SMB_DOMAIN_UNTRUSTED,
596 	SMB_DOMAIN_NUM_TYPES
597 } smb_domain_type_t;
598 
599 /*
600  * Information specific to trusted domains
601  */
602 typedef struct smb_domain_trust {
603 	uint32_t		dti_trust_direction;
604 	uint32_t		dti_trust_type;
605 	uint32_t		dti_trust_attrs;
606 } smb_domain_trust_t;
607 
608 /*
609  * DNS information for domain types that this info is
610  * obtained/available. Currently this is only obtained
611  * for the primary domain.
612  */
613 typedef struct smb_domain_dns {
614 	char			ddi_forest[MAXHOSTNAMELEN];
615 	char			ddi_guid[UUID_PRINTABLE_STRING_LENGTH];
616 } smb_domain_dns_t;
617 
618 /*
619  * This is the information that is held about each domain.
620  */
621 typedef struct smb_domain {
622 	list_node_t		di_lnd;
623 	smb_domain_type_t	di_type;
624 	char			di_sid[SMB_SID_STRSZ];
625 	char			di_nbname[NETBIOS_NAME_SZ];
626 	char			di_fqname[MAXHOSTNAMELEN];
627 	smb_sid_t		*di_binsid;
628 	union {
629 		smb_domain_dns_t	di_dns;
630 		smb_domain_trust_t	di_trust;
631 	} di_u;
632 } smb_domain_t;
633 
634 typedef struct smb_trusted_domains {
635 	uint32_t	td_num;
636 	smb_domain_t	*td_domains;
637 } smb_trusted_domains_t;
638 
639 #define	SMB_DOMAIN_SUCCESS		0
640 #define	SMB_DOMAIN_NOMACHINE_SID	1
641 #define	SMB_DOMAIN_NODOMAIN_SID		2
642 #define	SMB_DOMAIN_NODOMAIN_NAME	3
643 #define	SMB_DOMAIN_INTERNAL_ERR		4
644 #define	SMB_DOMAIN_INVALID_ARG		5
645 #define	SMB_DOMAIN_NO_MEMORY		6
646 #define	SMB_DOMAIN_NO_CACHE		7
647 
648 typedef struct smb_dcinfo {
649 	char			dc_name[MAXHOSTNAMELEN];
650 	smb_inaddr_t		dc_addr;
651 	uint32_t		dc_flags;
652 } smb_dcinfo_t;
653 
654 /*
655  * This structure could contain information about
656  * the primary domain the name of selected domain controller
657  * for the primary domain and a list of trusted domains if
658  * any. The "ex" in the structure name stands for extended.
659  * This is to differentiate this structure from smb_domain_t
660  * which only contains information about a single domain.
661  */
662 typedef struct smb_domainex {
663 	smb_dcinfo_t		d_dci;
664 	smb_domain_t		d_primary;
665 	smb_trusted_domains_t	d_trusted;
666 } smb_domainex_t;
667 
668 int smb_domain_init(uint32_t);
669 void smb_domain_fini(void);
670 void smb_domain_show(void);
671 void smb_domain_save(void);
672 boolean_t smb_domain_lookup_name(char *, smb_domain_t *);
673 boolean_t smb_domain_lookup_sid(smb_sid_t *, smb_domain_t *);
674 boolean_t smb_domain_lookup_type(smb_domain_type_t, smb_domain_t *);
675 boolean_t smb_domain_getinfo(smb_domainex_t *);
676 void smb_domain_update(smb_domainex_t *);
677 uint32_t smb_domain_start_update(void);
678 void smb_domain_end_update(void);
679 void smb_domain_set_basic_info(char *, char *, char *, smb_domain_t *);
680 void smb_domain_set_dns_info(char *, char *, char *, char *, char *,
681     smb_domain_t *);
682 void smb_domain_set_trust_info(char *, char *, char *,
683     uint32_t, uint32_t, uint32_t, smb_domain_t *);
684 void smb_domain_current_dc(smb_dcinfo_t *);
685 void smb_domain_bad_dc(void);
686 
687 typedef struct smb_gsid {
688 	smb_sid_t *gs_sid;
689 	uint16_t gs_type;
690 } smb_gsid_t;
691 
692 struct sqlite_vm;
693 struct sqlite;
694 
695 typedef struct smb_giter {
696 	struct sqlite_vm	*sgi_vm;
697 	struct sqlite		*sgi_db;
698 	uint32_t		sgi_nerr;
699 } smb_giter_t;
700 
701 typedef struct smb_group {
702 	char			*sg_name;
703 	char			*sg_cmnt;
704 	uint32_t		sg_attr;
705 	uint32_t		sg_rid;
706 	smb_gsid_t		sg_id;
707 	smb_domain_type_t	sg_domain;
708 	smb_privset_t		*sg_privs;
709 	uint32_t		sg_nmembers;
710 	smb_gsid_t		*sg_members;
711 } smb_group_t;
712 
713 int smb_lgrp_start(void);
714 void smb_lgrp_stop(void);
715 int smb_lgrp_add(char *, char *);
716 int smb_lgrp_rename(char *, char *);
717 int smb_lgrp_delete(char *);
718 int smb_lgrp_setcmnt(char *, char *);
719 int smb_lgrp_getcmnt(char *, char **);
720 int smb_lgrp_getpriv(char *, uint8_t, boolean_t *);
721 int smb_lgrp_setpriv(char *, uint8_t, boolean_t);
722 int smb_lgrp_add_member(char *, smb_sid_t *, uint16_t);
723 int smb_lgrp_del_member(char *, smb_sid_t *, uint16_t);
724 int smb_lgrp_getbyname(char *, smb_group_t *);
725 int smb_lgrp_getbyrid(uint32_t, smb_domain_type_t, smb_group_t *);
726 void smb_lgrp_free(smb_group_t *);
727 uint32_t smb_lgrp_err_to_ntstatus(uint32_t);
728 boolean_t smb_lgrp_is_member(smb_group_t *, smb_sid_t *);
729 char *smb_lgrp_strerror(int);
730 int smb_lgrp_iteropen(smb_giter_t *);
731 void smb_lgrp_iterclose(smb_giter_t *);
732 boolean_t smb_lgrp_itererror(smb_giter_t *);
733 int smb_lgrp_iterate(smb_giter_t *, smb_group_t *);
734 
735 int smb_lookup_sid(const char *, lsa_account_t *);
736 int smb_lookup_lsid(const char *, lsa_account_t *);
737 int smb_lookup_name(const char *, sid_type_t, lsa_account_t *);
738 int smb_lookup_lname(const char *, sid_type_t, lsa_account_t *);
739 
740 #define	SMB_LGRP_SUCCESS		0
741 #define	SMB_LGRP_INVALID_ARG		1
742 #define	SMB_LGRP_INVALID_MEMBER		2
743 #define	SMB_LGRP_INVALID_NAME		3
744 #define	SMB_LGRP_NOT_FOUND		4
745 #define	SMB_LGRP_EXISTS			5
746 #define	SMB_LGRP_NO_SID			6
747 #define	SMB_LGRP_NO_LOCAL_SID		7
748 #define	SMB_LGRP_SID_NOTLOCAL		8
749 #define	SMB_LGRP_WKSID			9
750 #define	SMB_LGRP_NO_MEMORY		10
751 #define	SMB_LGRP_DB_ERROR		11
752 #define	SMB_LGRP_DBINIT_ERROR		12
753 #define	SMB_LGRP_INTERNAL_ERROR		13
754 #define	SMB_LGRP_MEMBER_IN_GROUP	14
755 #define	SMB_LGRP_MEMBER_NOT_IN_GROUP	15
756 #define	SMB_LGRP_NO_SUCH_PRIV		16
757 #define	SMB_LGRP_NO_SUCH_DOMAIN		17
758 #define	SMB_LGRP_PRIV_HELD		18
759 #define	SMB_LGRP_PRIV_NOT_HELD		19
760 #define	SMB_LGRP_BAD_DATA		20
761 #define	SMB_LGRP_NO_MORE		21
762 #define	SMB_LGRP_DBOPEN_FAILED		22
763 #define	SMB_LGRP_DBEXEC_FAILED		23
764 #define	SMB_LGRP_DBINIT_FAILED		24
765 #define	SMB_LGRP_DOMLKP_FAILED		25
766 #define	SMB_LGRP_DOMINS_FAILED		26
767 #define	SMB_LGRP_INSERT_FAILED		27
768 #define	SMB_LGRP_DELETE_FAILED		28
769 #define	SMB_LGRP_UPDATE_FAILED		29
770 #define	SMB_LGRP_LOOKUP_FAILED		30
771 #define	SMB_LGRP_NOT_SUPPORTED		31
772 #define	SMB_LGRP_OFFLINE		32
773 #define	SMB_LGRP_POSIXCREATE_FAILED	33
774 
775 #define	SMB_LGRP_COMMENT_MAX	256
776 
777 /*
778  * values for smb_nic_t.smbflags
779  */
780 #define	SMB_NICF_NBEXCL		0x01	/* Excluded from Netbios activities */
781 #define	SMB_NICF_ALIAS		0x02	/* This is an alias */
782 
783 /*
784  * smb_nic_t
785  *     nic_host		actual host name
786  *     nic_nbname	16-byte NetBIOS host name
787  */
788 typedef struct {
789 	char		nic_host[MAXHOSTNAMELEN];
790 	char		nic_nbname[NETBIOS_NAME_SZ];
791 	char		nic_cmnt[SMB_PI_MAX_COMMENT];
792 	char		nic_ifname[LIFNAMSIZ];
793 	smb_inaddr_t	nic_ip;
794 	uint32_t	nic_mask;
795 	uint32_t	nic_bcast;
796 	uint32_t	nic_smbflags;
797 	uint64_t	nic_sysflags;
798 } smb_nic_t;
799 
800 typedef struct smb_niciter {
801 	smb_nic_t ni_nic;
802 	int ni_cookie;
803 	int ni_seqnum;
804 } smb_niciter_t;
805 
806 /* NIC config functions */
807 int smb_nic_init(void);
808 void smb_nic_fini(void);
809 int smb_nic_getnum(char *);
810 int smb_nic_addhost(const char *, const char *, int, const char **);
811 int smb_nic_delhost(const char *);
812 int smb_nic_getfirst(smb_niciter_t *);
813 int smb_nic_getnext(smb_niciter_t *);
814 boolean_t smb_nic_is_local(smb_inaddr_t *);
815 boolean_t smb_nic_is_same_subnet(smb_inaddr_t *);
816 
817 #define	SMB_NIC_SUCCESS			0
818 #define	SMB_NIC_INVALID_ARG		1
819 #define	SMB_NIC_NOT_FOUND		2
820 #define	SMB_NIC_NO_HOST			3
821 #define	SMB_NIC_NO_MEMORY		4
822 #define	SMB_NIC_DB_ERROR		5
823 #define	SMB_NIC_DBINIT_ERROR		6
824 #define	SMB_NIC_BAD_DATA		7
825 #define	SMB_NIC_NO_MORE			8
826 #define	SMB_NIC_DBOPEN_FAILED		9
827 #define	SMB_NIC_DBEXEC_FAILED		10
828 #define	SMB_NIC_DBINIT_FAILED		11
829 #define	SMB_NIC_INSERT_FAILED		12
830 #define	SMB_NIC_DELETE_FAILED		13
831 #define	SMB_NIC_SOCK			14
832 #define	SMB_NIC_IOCTL			15
833 #define	SMB_NIC_CHANGED			16
834 
835 /*
836  * Well-known account structure
837  *
838  * A security identifier (SID) is a unique value of variable length that
839  * is used to identify a security principal or security group in
840  * Windows. Well-known SIDs are a group of SIDs that identify generic
841  * users or generic groups. Their values remain constant across all
842  * operating systems.
843  *
844  * This structure is defined to store these SIDs and other related
845  * information about them (e.g. account and domain names) in a
846  * predefined table.
847  */
848 typedef struct smb_wka {
849 	uint8_t		wka_domidx;
850 	char		*wka_sid;
851 	char		*wka_name;
852 	uint16_t	wka_type;
853 	uint16_t	wka_flags;
854 	char		*wka_desc;
855 	smb_sid_t	*wka_binsid;
856 } smb_wka_t;
857 
858 /*
859  * Defined values for smb_wka.wka_flags
860  *
861  * SMB_WKAFLG_LGRP_ENABLE		Can be added as local group
862  */
863 #define	SMB_WKAFLG_LGRP_ENABLE	0x1
864 
865 /*
866  * Well-known account interfaces
867  */
868 smb_wka_t *smb_wka_lookup_builtin(const char *);
869 smb_wka_t *smb_wka_lookup_name(const char *);
870 smb_wka_t *smb_wka_lookup_sid(smb_sid_t *);
871 smb_sid_t *smb_wka_get_sid(const char *);
872 char *smb_wka_get_domain(int);
873 uint32_t smb_wka_token_groups(uint32_t, smb_ids_t *);
874 
875 /*
876  * In memory account representation
877  */
878 typedef struct smb_account {
879 	char		*a_name;
880 	char		*a_domain;
881 	uint16_t	a_type;
882 	smb_sid_t	*a_sid;
883 	smb_sid_t	*a_domsid;
884 	uint32_t	a_rid;
885 	uint32_t	a_flags;
886 } smb_account_t;
887 
888 uint32_t smb_sam_lookup_name(char *, char *, uint16_t, smb_account_t *);
889 uint32_t smb_sam_lookup_sid(smb_sid_t *, smb_account_t *);
890 int smb_sam_usr_cnt(void);
891 uint32_t smb_sam_usr_groups(smb_sid_t *, smb_ids_t *);
892 int smb_sam_grp_cnt(smb_domain_type_t);
893 void smb_account_free(smb_account_t *);
894 boolean_t smb_account_validate(smb_account_t *);
895 
896 /*
897  * Security Descriptor functions.
898  */
899 uint32_t smb_sd_read(char *path, smb_sd_t *, uint32_t);
900 uint32_t smb_sd_write(char *path, smb_sd_t *, uint32_t);
901 uint32_t smb_sd_fromfs(smb_fssd_t *, smb_sd_t *);
902 
903 /* Kernel Module Interface */
904 int smb_kmod_bind(void);
905 boolean_t smb_kmod_isbound(void);
906 int smb_kmod_setcfg(smb_kmod_cfg_t *);
907 int smb_kmod_setgmtoff(int32_t);
908 int smb_kmod_start(int, int, int);
909 void smb_kmod_stop(void);
910 int smb_kmod_event_notify(uint32_t);
911 void smb_kmod_unbind(void);
912 int smb_kmod_share(nvlist_t *);
913 int smb_kmod_unshare(nvlist_t *);
914 int smb_kmod_shareinfo(char *, boolean_t *);
915 int smb_kmod_get_open_num(smb_opennum_t *);
916 int smb_kmod_enum(smb_netsvc_t *);
917 smb_netsvc_t *smb_kmod_enum_init(smb_svcenum_t *);
918 void smb_kmod_enum_fini(smb_netsvc_t *);
919 int smb_kmod_session_close(const char *, const char *);
920 int smb_kmod_file_close(uint32_t);
921 int smb_kmod_get_spool_doc(uint32_t *, char *, char *, smb_inaddr_t *);
922 
923 void smb_name_parse(char *, char **, char **);
924 uint32_t smb_name_validate_share(const char *);
925 uint32_t smb_name_validate_account(const char *);
926 uint32_t smb_name_validate_domain(const char *);
927 uint32_t smb_name_validate_nbdomain(const char *);
928 uint32_t smb_name_validate_workgroup(const char *);
929 uint32_t smb_name_validate_rpath(const char *);
930 
931 /*
932  * Interposer library validation
933  */
934 #define	SMBEX_VERSION	1
935 #define	SMBEX_KEY	"82273fdc-e32a-18c3-3f78-827929dc23ea"
936 typedef struct smbex_version {
937 	uint32_t v_version;
938 	uuid_t v_uuid;
939 } smbex_version_t;
940 void *smb_dlopen(void);
941 void smb_dlclose(void *);
942 
943 /*
944  * General purpose multi-thread safe cache based on
945  * AVL tree
946  */
947 typedef struct smb_cache {
948 	avl_tree_t	ch_cache;
949 	rwlock_t	ch_cache_lck;
950 	uint32_t	ch_state;
951 	uint32_t	ch_nops;
952 	uint32_t	ch_wait;
953 	uint32_t	ch_sequence;
954 	size_t		ch_datasz;
955 	mutex_t		ch_mtx;
956 	cond_t		ch_cv;
957 	void		(*ch_free)(void *);
958 	void		(*ch_copy)(const void *, void *, size_t);
959 } smb_cache_t;
960 
961 typedef struct smb_cache_node {
962 	avl_node_t	cn_link;
963 	void		*cn_data;
964 } smb_cache_node_t;
965 
966 typedef struct smb_cache_cursor {
967 	void		*cc_next;
968 	uint32_t	cc_sequence;
969 } smb_cache_cursor_t;
970 
971 /*
972  * flags used with smb_cache_add()
973  *
974  * SMB_CACHE_ADD	If object doesn't exist add, otherwise fail
975  * SMB_CACHE_REPLACE	If object doesn't exist add, otherwise replace
976  */
977 #define	SMB_CACHE_ADD		1
978 #define	SMB_CACHE_REPLACE	2
979 
980 void smb_cache_create(smb_cache_t *, uint32_t,
981     int (*cmpfn) (const void *, const void *), void (*freefn)(void *),
982     void (*copyfn)(const void *, void *, size_t), size_t);
983 void smb_cache_destroy(smb_cache_t *);
984 void smb_cache_flush(smb_cache_t *);
985 uint32_t smb_cache_num(smb_cache_t *);
986 int smb_cache_refreshing(smb_cache_t *);
987 void smb_cache_ready(smb_cache_t *);
988 int smb_cache_add(smb_cache_t *, const void *, int);
989 void smb_cache_remove(smb_cache_t *, const void *);
990 void smb_cache_iterinit(smb_cache_t *, smb_cache_cursor_t *);
991 boolean_t smb_cache_iterate(smb_cache_t *, smb_cache_cursor_t *, void *);
992 
993 /*
994  * Values returned by smb_reparse_stat()
995  */
996 #define	SMB_REPARSE_NOTFOUND	1	/* object does not exist */
997 #define	SMB_REPARSE_NOTREPARSE	2	/* object is NOT a reparse point */
998 #define	SMB_REPARSE_ISREPARSE	3	/* object is a reparse point */
999 
1000 /*
1001  * Reparse Point API
1002  */
1003 int smb_reparse_stat(const char *, uint32_t *);
1004 int smb_reparse_svcadd(const char *, const char *, const char *);
1005 int smb_reparse_svcdel(const char *, const char *);
1006 int smb_reparse_svcget(const char *, const char *, char **);
1007 
1008 uint32_t smb_get_txid(void);
1009 
1010 void smb_syslog(int, const char *, ...);
1011 void smb_vsyslog(int, const char *, va_list ap);
1012 char *smb_syslog_fmt_m(char *, int, const char *, int);
1013 
1014 #ifdef	__cplusplus
1015 }
1016 #endif
1017 
1018 #endif	/* _LIBSMB_H */
1019