xref: /titanic_41/usr/src/uts/common/smbsrv/smb_share.h (revision 7206bf49b1fe641544165ee97f63856da95e0868)
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) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
25  */
26 
27 #ifndef _SMB_SHARE_H
28 #define	_SMB_SHARE_H
29 
30 #include <sys/param.h>
31 #include <smbsrv/string.h>
32 #include <smbsrv/smb_inet.h>
33 #include <smbsrv/hash_table.h>
34 #include <smbsrv/wintypes.h>
35 #include <smb/lmerr.h>
36 
37 #if !defined(_KERNEL) && !defined(_FAKE_KERNEL)
38 #include <libshare.h>
39 #endif
40 
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44 
45 #define	SMB_CVOL		"/var/smb/cvol"
46 #define	SMB_SYSROOT		SMB_CVOL "/windows"
47 #define	SMB_SYSTEM32		SMB_SYSROOT "/system32"
48 #define	SMB_VSS			SMB_SYSTEM32 "/vss"
49 
50 /*
51  * Share Properties:
52  *
53  * name			Advertised name of the share
54  *
55  * ad-container		Active directory container in which the share
56  * 			will be published
57  *
58  * abe			Determines whether Access Based Enumeration is applied
59  *			to a share
60  *
61  * csc			Client-side caching (CSC) options applied to this share
62  * 	disabled	The client MUST NOT cache any files
63  * 	manual		The client should not automatically cache every file
64  * 			that it	opens
65  * 	auto		The client may cache every file that it opens
66  * 	vdo		The client may cache every file that it opens
67  *			and satisfy file requests from its local cache.
68  *
69  * catia		CATIA character substitution
70  *
71  * guestok		Determines whether guest access is allowed
72  *
73  * next three properties use access-list a al NFS
74  *
75  * ro			list of hosts that will have read-only access
76  * rw			list of hosts that will have read/write access
77  * none			list of hosts that won't be allowed access
78  */
79 #define	SHOPT_AD_CONTAINER	"ad-container"
80 #define	SHOPT_ABE		"abe"
81 #define	SHOPT_NAME		"name"
82 #define	SHOPT_CSC		"csc"
83 #define	SHOPT_CATIA		"catia"
84 #define	SHOPT_GUEST		"guestok"
85 #define	SHOPT_RO		"ro"
86 #define	SHOPT_RW		"rw"
87 #define	SHOPT_NONE		"none"
88 #define	SHOPT_DFSROOT		"dfsroot"
89 #define	SHOPT_DESCRIPTION	"description"
90 
91 #define	SMB_DEFAULT_SHARE_GROUP	"smb"
92 #define	SMB_PROTOCOL_NAME	"smb"
93 
94 /*
95  * RAP protocol share related commands only understand
96  * share names in OEM format and there is a 13 char size
97  * limitation
98  */
99 #define	SMB_SHARE_OEMNAME_MAX		13
100 #define	SMB_SHARE_NTNAME_MAX		81
101 #define	SMB_SHARE_CMNT_MAX		(64 * MTS_MB_CHAR_MAX)
102 
103 /*
104  *	struct SHARE_INFO_1 {
105  *		char		shi1_netname[13]
106  *		char		shi1_pad;
107  *		unsigned short	shi1_type
108  *		char		*shi1_remark;
109  *	}
110  */
111 #define	SHARE_INFO_1_SIZE	(SMB_SHARE_OEMNAME_MAX + 1 + 2 + 4)
112 
113 /*
114  * Share flags:
115  *
116  * There are two types of flags:
117  *
118  *   - flags that represent a share property
119  *   - other flags set at runtime
120  *
121  * Property flags:
122  *
123  * SMB_SHRF_CSC_DISABLED	Client-side caching is disabled for this share
124  * SMB_SHRF_CSC_MANUAL	Manual client-side caching is allowed
125  * SMB_SHRF_CSC_AUTO	Automatic client-side caching (CSC) is allowed
126  * SMB_SHRF_CSC_VDO	Automatic CSC and local cache lookup is allowed
127  * SMB_SHRF_ACC_OPEN	No restrictions set
128  * SMB_SHRF_ACC_NONE	"none" property set
129  * SMB_SHRF_ACC_RO	"ro" (readonly) property set
130  * SMB_SHRF_ACC_RW	"rw" (read/write) property set
131  * SMB_SHRF_ACC_ALL	All of the access bits
132  * SMB_SHRF_CATIA	CATIA character translation on/off
133  * SMB_SHRF_GUEST_OK	Guest access on/off
134  * SMB_SHRF_ABE		Access Based Enumeration on/off
135  * SMB_SHRF_DFSROOT	Share is a standalone DFS root
136  *
137  * Runtime flags:
138  *
139  * SMB_SHRF_TRANS	Transient share
140  * SMB_SHRF_PERM	Permanent share
141  * SMB_SHRF_AUTOHOME	Autohome share.
142  * SMB_SHRF_ADMIN	Admin share
143  *
144  * All autohome shares are transient but not all transient shares are autohome.
145  * IPC$ and drive letter shares (e.g. d$, e$, etc) are transient but
146  * not autohome.
147  */
148 
149 /*
150  * Property flags
151  */
152 #define	SMB_SHRF_DFSROOT	0x0001
153 #define	SMB_SHRF_CATIA		0x0002
154 #define	SMB_SHRF_GUEST_OK	0x0004
155 #define	SMB_SHRF_ABE		0x0008
156 
157 #define	SMB_SHRF_CSC_DISABLED	0x0010
158 #define	SMB_SHRF_CSC_MANUAL	0x0020
159 #define	SMB_SHRF_CSC_AUTO	0x0040
160 #define	SMB_SHRF_CSC_VDO	0x0080
161 #define	SMB_SHRF_CSC_MASK	0x00F0
162 
163 #define	SMB_SHRF_ACC_OPEN	0x0000
164 #define	SMB_SHRF_ACC_NONE	0x0100
165 #define	SMB_SHRF_ACC_RO		0x0200
166 #define	SMB_SHRF_ACC_RW		0x0400
167 #define	SMB_SHRF_ACC_ALL	0x0F00
168 
169 /*
170  * Runtime flags
171  */
172 #define	SMB_SHRF_ADMIN		0x01000000
173 #define	SMB_SHRF_TRANS		0x10000000
174 #define	SMB_SHRF_PERM		0x20000000
175 #define	SMB_SHRF_AUTOHOME	0x40000000
176 
177 #define	SMB_SHARE_PRINT		"print$"
178 #define	SMB_SHARE_PRINT_LEN	6
179 /*
180  * refcnt is currently only used for autohome.  autohome needs a refcnt
181  * because a user can map his autohome share from more than one client
182  * at the same time and the share should only be removed when the last
183  * one is disconnected
184  */
185 typedef struct smb_share {
186 	char		shr_name[MAXNAMELEN];
187 	char		shr_path[MAXPATHLEN];
188 	char		shr_cmnt[SMB_SHARE_CMNT_MAX];
189 	char		shr_container[MAXPATHLEN];
190 	uint32_t	shr_flags;
191 	uint32_t	shr_type;
192 	uint32_t	shr_refcnt;
193 	uint32_t	shr_access_value;	/* host return access value */
194 	uid_t		shr_uid;		/* autohome only */
195 	gid_t		shr_gid;		/* autohome only */
196 	char		shr_access_none[MAXPATHLEN];
197 	char		shr_access_ro[MAXPATHLEN];
198 	char		shr_access_rw[MAXPATHLEN];
199 } smb_share_t;
200 
201 typedef struct smb_shriter {
202 	smb_share_t	si_share;
203 	HT_ITERATOR	si_hashiter;
204 	boolean_t	si_first;
205 } smb_shriter_t;
206 
207 #define	LMSHARES_PER_REQUEST  10
208 typedef struct smb_shrlist {
209 	int		sl_cnt;
210 	smb_share_t	sl_shares[LMSHARES_PER_REQUEST];
211 } smb_shrlist_t;
212 
213 typedef struct smb_shr_execinfo {
214 	char		*e_sharename;
215 	char		*e_winname;
216 	char		*e_userdom;
217 	smb_inaddr_t	e_srv_ipaddr;
218 	smb_inaddr_t	e_cli_ipaddr;
219 	char		*e_cli_netbiosname;
220 	uid_t		e_uid;
221 	int		e_type;
222 } smb_shr_execinfo_t;
223 
224 /*
225  * LanMan share API (for both SMB kernel module and GUI/CLI sub-system)
226  *
227  * NOTE: If any error is encounted by either the door server or client,
228  * NERR_InternalError will be returned by most functions, smb_share_count
229  * will return -1.
230  */
231 
232 #if !defined(_KERNEL) && !defined(_FAKE_KERNEL)
233 
234 /*
235  * CIFS share management functions exported by libmlsvc
236  */
237 int smb_shr_start(void);
238 void smb_shr_stop(void);
239 void *smb_shr_load(void *);
240 void smb_shr_iterinit(smb_shriter_t *);
241 smb_share_t *smb_shr_iterate(smb_shriter_t *);
242 void smb_shr_list(int, smb_shrlist_t *);
243 int smb_shr_count(void);
244 uint32_t smb_shr_add(smb_share_t *);
245 uint32_t smb_shr_remove(char *);
246 uint32_t smb_shr_rename(char *, char *);
247 uint32_t smb_shr_get(char *, smb_share_t *);
248 uint32_t smb_shr_modify(smb_share_t *);
249 uint32_t smb_shr_get_realpath(const char *, char *, int);
250 uint32_t smb_shr_hostaccess(smb_inaddr_t *, char *, char *, char *, uint32_t);
251 int smb_shr_exec(smb_shr_execinfo_t *);
252 
253 boolean_t smb_shr_exists(char *);
254 int smb_shr_is_special(char *);
255 boolean_t smb_shr_is_restricted(char *);
256 boolean_t smb_shr_is_admin(char *);
257 char smb_shr_drive_letter(const char *);
258 
259 sa_handle_t smb_shr_sa_enter(void);
260 void smb_shr_sa_exit(void);
261 void smb_shr_sa_csc_option(const char *, smb_share_t *);
262 char *smb_shr_sa_csc_name(const smb_share_t *);
263 void smb_shr_sa_setflag(const char *, smb_share_t *, uint32_t);
264 
265 /*
266  * CIFS share management API exported for other processes
267  */
268 uint32_t smb_share_list(int, smb_shrlist_t *);
269 int smb_share_count(void);
270 uint32_t smb_share_delete(char *);
271 uint32_t smb_share_rename(char *, char *);
272 uint32_t smb_share_create(smb_share_t *);
273 uint32_t smb_share_modify(smb_share_t *);
274 
275 #endif	/* _KERNEL */
276 
277 #ifdef __cplusplus
278 }
279 #endif
280 
281 #endif /* _SMB_SHARE_H */
282