xref: /illumos-gate/usr/src/uts/common/smbsrv/smb_share.h (revision 74e7dc986c89efca1f2e4451c7a572e05e4a6e4f)
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 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SMB_SHARE_H
27 #define	_SMB_SHARE_H
28 
29 #pragma ident	"@(#)smb_share.h	1.7	08/08/07 SMI"
30 
31 /*
32  * This file defines the LanMan (CIFS/SMB) resource share interface.
33  */
34 
35 #include <sys/param.h>
36 #include <smbsrv/string.h>
37 #include <smbsrv/hash_table.h>
38 #include <smbsrv/wintypes.h>
39 #include <smbsrv/lmerr.h>
40 #include <smbsrv/smb_common_door.h>
41 
42 #ifndef _KERNEL
43 #include <libshare.h>
44 #else
45 #include <sys/door.h>
46 #endif
47 
48 #ifdef __cplusplus
49 extern "C" {
50 #endif
51 
52 /*
53  * The following 4 macros are mainly for sharemgr use
54  */
55 #define	SMB_SHROPT_AD_CONTAINER	"ad-container"
56 #define	SMB_SHROPT_NAME		"name"	/* name is a pseudo property */
57 
58 #define	SMB_DEFAULT_SHARE_GROUP	"smb"
59 #define	SMB_PROTOCOL_NAME	"smb"
60 
61 /*
62  * RAP protocol share related commands only understand
63  * share names in OEM format and there is a 13 char size
64  * limitation
65  */
66 #define	SMB_SHARE_OEMNAME_MAX		13
67 #define	SMB_SHARE_CMNT_MAX		(64 * MTS_MB_CHAR_MAX)
68 
69 /*
70  *	struct SHARE_INFO_1 {
71  *		char		shi1_netname[13]
72  *		char		shi1_pad;
73  *		unsigned short	shi1_type
74  *		char		*shi1_remark;
75  *	}
76  */
77 #define	SHARE_INFO_1_SIZE	(SMB_SHARE_OEMNAME_MAX + 1 + 2 + 4)
78 
79 /*
80  * Share flags:
81  *
82  * SMB_SHRF_TRANS	Transient share
83  * SMB_SHRF_PERM	Permanent share
84  * SMB_SHRF_AUTOHOME	Autohome share.
85  * SMB_SHRF_LONGNAME	Share name in OEM is longer than 13 chars
86  * SMB_SHRF_ADMIN	Admin share
87  *
88  * All autohome shares are transient but not all transient shares are autohome.
89  * IPC$ and drive letter shares (e.g. d$, e$, etc) are transient but
90  * not autohome.
91  */
92 #define	SMB_SHRF_TRANS		0x0001
93 #define	SMB_SHRF_PERM		0x0002
94 #define	SMB_SHRF_AUTOHOME	0x0004
95 #define	SMB_SHRF_LONGNAME	0x0008
96 #define	SMB_SHRF_ADMIN		0x0010
97 
98 /*
99  * refcnt is currently only used for autohome.  autohome needs a refcnt
100  * because a user can map his autohome share from more than one client
101  * at the same time and the share should only be removed when the last
102  * one is disconnected
103  */
104 typedef struct smb_share {
105 	char		shr_name[MAXNAMELEN];
106 	char		shr_path[MAXPATHLEN];
107 	char		shr_cmnt[SMB_SHARE_CMNT_MAX];
108 	char		shr_container[MAXPATHLEN];
109 	char		shr_oemname[SMB_SHARE_OEMNAME_MAX];
110 	uint32_t	shr_flags;
111 	uint32_t	shr_type;
112 	uint32_t	shr_refcnt;
113 } smb_share_t;
114 
115 typedef struct smb_shriter {
116 	smb_share_t	si_share;
117 	HT_ITERATOR	si_hashiter;
118 	boolean_t	si_first;
119 } smb_shriter_t;
120 
121 #define	LMSHARES_PER_REQUEST  10
122 typedef struct smb_shrlist {
123 	int		sl_cnt;
124 	smb_share_t	sl_shares[LMSHARES_PER_REQUEST];
125 } smb_shrlist_t;
126 
127 /*
128  * This structure is a helper for building NetShareEnum response
129  * in user space and send it back down to kernel.
130  *
131  * es_username	name of the user requesting the shares list which
132  * 		is used to detect if the user has any autohome
133  * es_bufsize	size of the response buffer
134  * es_buf	pointer to the response buffer
135  * es_ntotal	total number of shares exported by server which
136  * 		their OEM names is less then 13 chars
137  * es_nsent	number of shares that can fit in the specified buffer
138  * es_datasize	actual data size (share's data) which was encoded
139  * 		in the response buffer
140  */
141 typedef struct smb_enumshare_info {
142 	char		*es_username;
143 	uint16_t	es_bufsize;
144 	char		*es_buf;
145 	uint16_t	es_ntotal;
146 	uint16_t	es_nsent;
147 	uint16_t	es_datasize;
148 } smb_enumshare_info_t;
149 
150 /*
151  * LanMan share API (for both SMB kernel module and GUI/CLI sub-system)
152  *
153  * NOTE: If any error is encounted by either the door server or client,
154  * NERR_InternalError will be returned by most functions, smb_share_count
155  * will return -1.
156  */
157 
158 #ifndef _KERNEL
159 
160 /*
161  * CIFS share management functions exported by libmlsvc
162  */
163 int smb_shr_start(void);
164 void smb_shr_stop(void);
165 void smb_shr_iterinit(smb_shriter_t *);
166 smb_share_t *smb_shr_iterate(smb_shriter_t *);
167 void smb_shr_list(int, smb_shrlist_t *);
168 int smb_shr_count(void);
169 uint32_t smb_shr_create(smb_share_t *, boolean_t);
170 uint32_t smb_shr_delete(char *, boolean_t);
171 uint32_t smb_shr_rename(char *, char *);
172 uint32_t smb_shr_get(char *, smb_share_t *);
173 uint32_t smb_shr_modify(char *, const char *, const char *, boolean_t);
174 uint32_t smb_shr_get_realpath(const char *, char *, int);
175 
176 boolean_t smb_shr_exists(char *);
177 int smb_shr_is_special(char *);
178 boolean_t smb_shr_is_restricted(char *);
179 boolean_t smb_shr_is_admin(char *);
180 boolean_t smb_shr_chkname(char *);
181 
182 /*
183  * CIFS share management API exported for other processes
184  */
185 uint32_t smb_share_list(int, smb_shrlist_t *);
186 int smb_share_count(void);
187 uint32_t smb_share_get(char *, smb_share_t *);
188 uint32_t smb_share_delete(char *);
189 uint32_t smb_share_rename(char *, char *);
190 uint32_t smb_share_create(smb_share_t *);
191 uint32_t smb_share_modify(char *, char *, char *);
192 
193 #else
194 
195 door_handle_t smb_kshare_init(int);
196 void smb_kshare_fini(door_handle_t);
197 uint32_t smb_kshare_getinfo(door_handle_t, const char *, smb_share_t *);
198 int smb_kshare_upcall(door_handle_t, void *, boolean_t);
199 uint32_t smb_kshare_enum(door_handle_t, smb_enumshare_info_t *);
200 
201 #endif
202 
203 #define	SMB_SHARE_DNAME		"/var/run/smb_share_door"
204 #define	SMB_SHARE_DSIZE		(65 * 1024)
205 
206 /*
207  * Door interface
208  *
209  * Define door operations
210  */
211 #define	SMB_SHROP_NUM_SHARES		1
212 #define	SMB_SHROP_DELETE		2
213 #define	SMB_SHROP_RENAME		3
214 #define	SMB_SHROP_GETINFO		4
215 #define	SMB_SHROP_ADD			5
216 #define	SMB_SHROP_MODIFY		6
217 #define	SMB_SHROP_LIST			7
218 #define	SMB_SHROP_ENUM			8
219 
220 /*
221  * Door server status
222  *
223  * SMB_SHARE_DERROR is returned by the door server if there is problem
224  * with marshalling/unmarshalling. Otherwise, SMB_SHARE_DSUCCESS is
225  * returned.
226  *
227  */
228 #define	SMB_SHARE_DSUCCESS		0
229 #define	SMB_SHARE_DERROR		-1
230 
231 void smb_dr_get_share(smb_dr_ctx_t *, smb_share_t *);
232 void smb_dr_put_share(smb_dr_ctx_t *, smb_share_t *);
233 
234 void smb_share_dclose(void);
235 
236 #ifdef __cplusplus
237 }
238 #endif
239 
240 #endif /* _SMB_SHARE_H */
241