xref: /titanic_41/usr/src/uts/common/sharefs/share.h (revision f48205be61a214698b763ff550ab9e657525104c)
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 2007 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SHAREFS_SHARE_H
28 #define	_SHAREFS_SHARE_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
36 /*
37  * struct share defines the format of an exported filesystem.
38  *
39  * It is also the interface between the userland tools and
40  * the kernel.
41  */
42 typedef struct share {
43 	char		*sh_path;
44 	char		*sh_res;
45 	char		*sh_fstype;
46 	char		*sh_opts;
47 	char		*sh_descr;
48 	size_t		sh_size;
49 	struct share	*sh_next;
50 } share_t;
51 
52 #ifdef _SYSCALL32
53 typedef struct share32 {
54 	caddr32_t	sh_path;
55 	caddr32_t	sh_res;
56 	caddr32_t	sh_fstype;
57 	caddr32_t	sh_opts;
58 	caddr32_t	sh_descr;
59 	size32_t	sh_size;
60 	caddr32_t	sh_next;
61 } share32_t;
62 #endif /* _SYSCALL32 */
63 
64 #define	SHARETAB	"/etc/dfs/sharetab"
65 #define	MAXBUFSIZE	65536
66 
67 /*
68  * Flavors of the system call.
69  */
70 enum sharefs_sys_op { SHAREFS_ADD, SHAREFS_REMOVE, SHAREFS_REPLACE };
71 
72 #ifdef _KERNEL
73 
74 extern int	sharefs(enum sharefs_sys_op opcode, struct share *sh,
75 			uint32_t iMaxLen);
76 
77 #else
78 
79 extern int	sharefs(enum sharefs_sys_op opcode, struct share *sh);
80 
81 #endif
82 
83 #ifdef __cplusplus
84 }
85 #endif
86 
87 #endif /* !_SHAREFS_SHARE_H */
88