xref: /illumos-gate/usr/src/lib/libshare/common/libshare_impl.h (revision e9610e3e86cbfb5fd6797a438c65b493250b4219)
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 2009 Sun Microsystems, Inc.  All rights reserved.
24   * Use is subject to license terms.
25   * Copyright (c) 2016 by Delphix. All rights reserved.
26   */
27  
28  /*
29   * basic declarations for implementation of the share management
30   * libraries.
31   */
32  
33  #ifndef _LIBSHARE_IMPL_H
34  #define	_LIBSHARE_IMPL_H
35  
36  #include <libshare.h>
37  #include <libscf.h>
38  #include <scfutil.h>
39  #include <libzfs.h>
40  #include <sharefs/share.h>
41  #include <sharefs/sharetab.h>
42  
43  #ifdef	__cplusplus
44  extern "C" {
45  #endif
46  
47  /* directory to find plugin modules in */
48  #define	SA_LIB_DIR	"/usr/lib/fs"
49  
50  /* default group name for dfstab file */
51  #define	SA_DEFAULT_FILE_GRP	"sys"
52  
53  typedef void *sa_phandle_t;
54  
55  #define	SA_PLUGIN_VERSION	1
56  struct sa_plugin_ops {
57  	int	sa_version;			/* version number */
58  	char	*sa_protocol;			/* protocol name */
59  	int	(*sa_init)();
60  	void	(*sa_fini)();
61  	int	(*sa_share)(sa_share_t);	/* start sharing */
62  	int	(*sa_unshare)(sa_share_t, char *); /* stop sharing */
63  	int	(*sa_valid_prop)(sa_handle_t, sa_property_t,
64  	    sa_optionset_t); /* validate */
65  	int	(*sa_valid_space)(char *);	/* is name valid optionspace? */
66  	int	(*sa_security_prop)(char *);	/* property is security */
67  	int	(*sa_legacy_opts)(sa_group_t, char *); /* parse legacy opts */
68  	char   *(*sa_legacy_format)(sa_group_t, int);
69  	int	(*sa_set_proto_prop)(sa_property_t);	/* set a property */
70  	sa_protocol_properties_t (*sa_get_proto_set)();	/* get properties */
71  	char   *(*sa_get_proto_status)();
72  	char   *(*sa_space_alias)(char *);
73  	int	(*sa_update_legacy)(sa_share_t);
74  	int	(*sa_delete_legacy)(sa_share_t);
75  	int	(*sa_change_notify)(sa_share_t);
76  	int	(*sa_enable_resource)(sa_resource_t);
77  	int	(*sa_disable_resource)(sa_resource_t);
78  	uint64_t (*sa_features)(void);
79  	int	(*sa_get_transient_shares)(sa_handle_t); /* add transients */
80  	int	(*sa_notify_resource)(sa_resource_t);
81  	int	(*sa_rename_resource)(sa_handle_t, sa_resource_t, char *);
82  	int	(*sa_run_command)(int, int, char **); /* proto specific */
83  	int	(*sa_command_help)();
84  	int	(*sa_delete_proto_section)(char *);
85  };
86  
87  struct sa_proto_handle {
88  	int			sa_num_proto;
89  	char			**sa_proto;
90  	struct sa_plugin_ops	**sa_ops;
91  };
92  
93  typedef struct propertylist {
94  	struct propertylist	*pl_next;
95  	int			pl_type;
96  	union propval {
97  	    sa_optionset_t	pl_optionset;
98  	    sa_security_t	pl_security;
99  	    void		*pl_void;
100  	}			pl_value;
101  } property_list_t;
102  
103  /* internal version of sa_handle_t */
104  typedef struct sa_handle_impl {
105  	uint64_t	flags;
106  	scfutilhandle_t	*scfhandle;
107  	libzfs_handle_t *zfs_libhandle;
108  	zfs_handle_t	**zfs_list;
109  	size_t		zfs_list_count;
110  	xmlNodePtr	tree;
111  	xmlDocPtr	doc;
112  	uint64_t	tssharetab;
113  	uint64_t	tstrans;
114  	int		sa_service;
115  } *sa_handle_impl_t;
116  
117  extern int sa_proto_share(char *, sa_share_t);
118  extern int sa_proto_unshare(sa_share_t, char *, char *);
119  extern int sa_proto_valid_prop(sa_handle_t, char *, sa_property_t,
120      sa_optionset_t);
121  extern int sa_proto_security_prop(char *, char *);
122  extern int sa_proto_legacy_opts(char *, sa_group_t, char *);
123  extern int sa_proto_share_resource(char *, sa_resource_t);
124  extern int sa_proto_unshare_resource(char *, sa_resource_t);
125  
126  /* internal utility functions */
127  extern sa_optionset_t sa_get_derived_optionset(sa_group_t, char *, int);
128  extern void sa_free_derived_optionset(sa_optionset_t);
129  extern sa_optionset_t sa_get_all_security_types(void *, char *, int);
130  extern sa_security_t sa_get_derived_security(void *, char *, char *, int);
131  extern void sa_free_derived_security(sa_security_t);
132  extern sa_protocol_properties_t sa_create_protocol_properties(char *);
133  extern int sa_start_transaction(scfutilhandle_t *, char *);
134  extern int sa_end_transaction(scfutilhandle_t *, sa_handle_impl_t);
135  extern void sa_abort_transaction(scfutilhandle_t *);
136  extern int sa_commit_share(scfutilhandle_t *, sa_group_t, sa_share_t);
137  extern int sa_set_property(scfutilhandle_t *, char *, char *);
138  extern void sa_free_fstype(char *fstyp);
139  extern int sa_delete_share(scfutilhandle_t *, sa_group_t, sa_share_t);
140  extern int sa_delete_instance(scfutilhandle_t *, char *);
141  extern int sa_create_pgroup(scfutilhandle_t *, char *);
142  extern int sa_delete_pgroup(scfutilhandle_t *, char *);
143  extern void sa_fillshare(sa_share_t share, char *proto, struct share *sh);
144  extern void sa_emptyshare(struct share *sh);
145  
146  /* ZFS functions */
147  extern int sa_get_one_zfs_share(sa_handle_t, char *, sa_init_selective_arg_t *,
148      char ***, size_t *);
149  extern int sa_get_zfs_shares(sa_handle_t, char *);
150  extern int sa_get_zfs_share_for_name(sa_handle_t, char *, const char *, char *);
151  extern int sa_zfs_update(sa_share_t);
152  extern int sa_share_zfs(sa_share_t, sa_resource_t, char *, share_t *,
153      void *, zfs_share_op_t);
154  extern int sa_sharetab_fill_zfs(sa_share_t share, struct share *sh,
155      char *proto);
156  
157  /* plugin specific functions */
158  extern int proto_plugin_init();
159  extern void proto_plugin_fini();
160  extern int sa_proto_set_property(char *, sa_property_t);
161  extern int sa_proto_delete_legacy(char *, sa_share_t);
162  extern int sa_proto_update_legacy(char *, sa_share_t);
163  extern int sa_proto_rename_resource(sa_handle_t, char *,
164      sa_resource_t, char *);
165  
166  #define	PL_TYPE_PROPERTY	0
167  #define	PL_TYPE_SECURITY	1
168  
169  /* values only used by the internal dfstab/sharetab parser */
170  #define	SA_SHARE_PARSER		0x1000
171  
172  /* plugin handler only */
173  struct sa_proto_plugin {
174  	struct sa_proto_plugin	*plugin_next;
175  	struct sa_plugin_ops	*plugin_ops;
176  	void			*plugin_handle;
177  };
178  
179  #define	TSTAMP(tm)	(uint64_t)(((uint64_t)tm.tv_sec << 32) | \
180  					(tm.tv_nsec & 0xffffffff))
181  
182  
183  #ifdef	__cplusplus
184  }
185  #endif
186  
187  #endif /* _LIBSHARE_IMPL_H */
188