xref: /titanic_41/usr/src/uts/common/sharefs/share.h (revision a3175730a459223fb8f26a2915aa0a31f6b36f98)
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