xref: /titanic_52/usr/src/lib/smbsrv/libmlsvc/common/libmlsvc.h (revision 8e4728571e959f3afb368407b22125278412c9d4)
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 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_LIBMLSVC_H
27 #define	_LIBMLSVC_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #include <sys/types.h>
32 #include <smbsrv/ntsid.h>
33 #include <smbsrv/hash_table.h>
34 #include <smbsrv/smb_token.h>
35 #include <smbsrv/smb_privilege.h>
36 #include <smbsrv/lmshare.h>
37 #include <smbsrv/libsmb.h>
38 
39 #ifdef	__cplusplus
40 extern "C" {
41 #endif
42 
43 extern int mlsvc_init(void);
44 extern int mlsvc_is_local_domain(const char *);
45 extern DWORD lsa_query_primary_domain_info(void);
46 extern DWORD lsa_query_account_domain_info(void);
47 extern DWORD lsa_enum_trusted_domains(void);
48 
49 extern boolean_t locate_resource_pdc(char *);
50 
51 #define	SMB_AUTOHOME_FILE	"smbautohome"
52 #define	SMB_AUTOHOME_PATH	"/etc"
53 
54 typedef struct smb_autohome {
55 	struct smb_autohome *ah_next;
56 	uint32_t ah_hits;
57 	time_t ah_timestamp;
58 	char *ah_name;		/* User account name */
59 	char *ah_path;		/* Home directory path */
60 	char *ah_container;	/* ADS container distinguished name */
61 } smb_autohome_t;
62 
63 extern int smb_autohome_add(const char *);
64 extern int smb_autohome_remove(const char *);
65 extern int smb_is_autohome(const lmshare_info_t *);
66 extern void smb_autohome_setent(void);
67 extern void smb_autohome_endent(void);
68 extern smb_autohome_t *smb_autohome_getent(const char *name);
69 extern smb_autohome_t *smb_autohome_lookup(const char *name);
70 
71 /*
72  * Local groups
73  */
74 #define	NT_GROUP_FMRI_PREFIX	"network/smb/group"
75 
76 typedef enum {
77 	RWLOCK_NONE,
78 	RWLOCK_WRITER,
79 	RWLOCK_READER
80 } krwmode_t;
81 
82 typedef struct nt_group_data {
83 	void *data;
84 	int size;
85 } nt_group_data_t;
86 
87 /*
88  * IMPORTANT NOTE:
89  * If you change nt_group_member_t, nt_group_members_t, or nt_group_t
90  * structures, you MIGHT have to change following functions accordingly:
91  *	nt_group_setfields
92  *	nt_group_init_size
93  * 	nt_group_init
94  */
95 typedef struct nt_group_member {
96 	uint16_t	info_size;	/* size of the whole structure */
97 	uint16_t	sid_name_use;	/* type of the specified SID */
98 	char		*account;	/* Pointer to account name of member */
99 	nt_sid_t 	sid;		/* Variable length */
100 } nt_group_member_t;
101 
102 typedef struct nt_group_members {
103 	uint32_t		size;		/* in bytes */
104 	uint32_t		count;
105 	nt_group_member_t	list[ANY_SIZE_ARRAY];
106 } nt_group_members_t;
107 
108 typedef struct nt_group {
109 	time_t			age;
110 	nt_group_data_t		info;
111 	/*
112 	 * following fields point to a contigous block
113 	 * of memory that is read and written from/to DB
114 	 */
115 	uint32_t		*attr;
116 	uint16_t		*sid_name_use;
117 	char			*name;
118 	char			*comment;
119 	nt_sid_t		*sid;
120 	smb_privset_t		*privileges;
121 	nt_group_members_t 	*members;
122 } nt_group_t;
123 
124 typedef struct nt_group_iterator {
125 	HT_ITERATOR *iterator;
126 	int iteration;
127 } nt_group_iterator_t;
128 
129 extern int 	nt_group_num_groups(void);
130 extern uint32_t	nt_group_add(char *, char *);
131 extern uint32_t	nt_group_modify(char *, char *, char *);
132 extern uint32_t	nt_group_delete(char *);
133 extern nt_group_t *nt_group_getinfo(char *, krwmode_t);
134 extern void 	nt_group_putinfo(nt_group_t *);
135 
136 extern int	nt_group_getpriv(nt_group_t *, uint32_t);
137 extern uint32_t	nt_group_setpriv(nt_group_t *, uint32_t, uint32_t);
138 
139 /* Member manipulation functions */
140 extern int 	nt_group_is_member(nt_group_t *, nt_sid_t *);
141 extern uint32_t	nt_group_del_member(nt_group_t *, void *, int);
142 extern uint32_t	nt_group_add_member(nt_group_t *, nt_sid_t *, uint16_t, char *);
143 extern int 	nt_group_num_members(nt_group_t *);
144 
145 extern void nt_group_ht_lock(krwmode_t);
146 extern void nt_group_ht_unlock(void);
147 
148 extern nt_group_iterator_t *nt_group_open_iterator(void);
149 extern void nt_group_close_iterator(nt_group_iterator_t *);
150 extern nt_group_t *nt_group_iterate(nt_group_iterator_t *);
151 
152 extern int nt_group_cache_size(void);
153 
154 extern int nt_group_member_list(int offset, nt_group_t *grp,
155     ntgrp_member_list_t *rmembers);
156 extern void nt_group_list(int offset, char *pattern, ntgrp_list_t *list);
157 
158 extern uint32_t sam_init(void);
159 
160 extern uint32_t	nt_group_add_member_byname(char *, char *);
161 extern uint32_t	nt_group_del_member_byname(nt_group_t *, char *);
162 extern void 	nt_group_add_groupprivs(nt_group_t *, smb_privset_t *);
163 
164 extern uint32_t	nt_groups_member_privs(nt_sid_t *, smb_privset_t *);
165 extern int 	nt_groups_member_ngroups(nt_sid_t *);
166 extern uint32_t nt_groups_member_groups(nt_sid_t *, smb_id_t *, int);
167 extern nt_group_t *nt_groups_lookup_rid(uint32_t);
168 extern int 	nt_groups_count(int);
169 
170 /*
171  * source for account name size is MSDN
172  */
173 #define	NT_GROUP_NAME_CHAR_MAX		32
174 #define	NT_GROUP_NAME_MAX		(NT_GROUP_NAME_CHAR_MAX * 3 + 1)
175 #define	NT_GROUP_USER_NAME_MAX		(NT_GROUP_NAME_CHAR_MAX * 3 + 1)
176 #define	NT_GROUP_MEMBER_NAME_MAX	(NT_GROUP_NAME_CHAR_MAX * 3 + 1)
177 #define	NT_GROUP_COMMENT_MAX		256
178 
179 /*
180  * flags for count operation
181  */
182 #define	NT_GROUP_CNT_BUILTIN		1
183 #define	NT_GROUP_CNT_LOCAL		2
184 #define	NT_GROUP_CNT_ALL		3
185 
186 /*
187  * flag to distinguish between add and modify
188  * operations.
189  */
190 #define	NT_GROUP_OP_CHANGE		1
191 #define	NT_GROUP_OP_SYNC		2
192 
193 /*
194  * specify key type for deleting a member i.e.
195  * whether it's member's name or member's SID.
196  */
197 #define	NT_GROUP_KEY_SID	1
198 #define	NT_GROUP_KEY_NAME	2
199 
200 /* Macro for walking members */
201 #define	NEXT_MEMBER(m) (nt_group_member_t *)((char *)(m) + (m)->info_size)
202 
203 /*
204  * When NT requests the security descriptor for a local file that
205  * doesn't already have a one, we generate one on-the-fly. The SD
206  * contains both user and group SIDs. The problem is that we need a
207  * way to distinguish a user SID from a group SID when NT performs a
208  * subsequent SID lookup to obtain the appropriate name to display.
209  * The following macros are used to map to and from an external
210  * representation so that we can tell the difference between UIDs
211  * and GIDs. The local UID/GID is shifted left and the LSB is used
212  * to distinguish the id type before it is inserted into the SID.
213  * We can then use this type identifier during lookup operations.
214  */
215 #define	SAM_MIN_RID				1000
216 #define	SAM_RT_ERROR				-1
217 #define	SAM_RT_UNIX_UID				0
218 #define	SAM_RT_UNIX_GID				1
219 #define	SAM_RT_NT_UID				2
220 #define	SAM_RT_NT_GID				3
221 #define	SAM_RT_MASK				0x3
222 #define	SAM_RT_EVERYONE				4
223 #define	SAM_RT_UNKNOWN				5
224 
225 #define	SAM_RID_TYPE(rid)		((rid) & SAM_RT_MASK)
226 #define	SAM_DECODE_RID(rid)		(((rid) - SAM_MIN_RID) >> 2)
227 #define	SAM_ENCODE_RID(type, id)	((((id) << 2) | type) + SAM_MIN_RID)
228 #define	SAM_ENCODE_UXUID(id)		SAM_ENCODE_RID(SAM_RT_UNIX_UID, id)
229 #define	SAM_ENCODE_UXGID(id)		SAM_ENCODE_RID(SAM_RT_UNIX_GID, id)
230 #define	SAM_ENCODE_NTUID(id)		SAM_ENCODE_RID(SAM_RT_NT_UID, id)
231 #define	SAM_ENCODE_NTGID(id)		SAM_ENCODE_RID(SAM_RT_NT_GID, id)
232 
233 #ifdef	__cplusplus
234 }
235 #endif
236 
237 #endif	/* _LIBMLSVC_H */
238