xref: /titanic_44/usr/src/lib/libbe/common/libbe_priv.h (revision c3e9074d863038c38dc15c3af85b017f42133816)
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  */
25 
26 #ifndef	_LIBBE_PRIV_H
27 #define	_LIBBE_PRIV_H
28 
29 #include <libnvpair.h>
30 #include <libzfs.h>
31 #include <instzones_api.h>
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 #define	ARCH_LENGTH		MAXNAMELEN
38 #define	BE_AUTO_NAME_MAX_TRY	3
39 #define	BE_AUTO_NAME_DELIM	'-'
40 #define	BE_CONTAINER_DS_NAME	"ROOT"
41 #define	BE_POLICY_PROPERTY	"org.opensolaris.libbe:policy"
42 #define	BE_UUID_PROPERTY	"org.opensolaris.libbe:uuid"
43 #define	BE_PLCY_STATIC		"static"
44 #define	BE_PLCY_VOLATILE	"volatile"
45 #define	BE_GRUB_MENU		"/boot/grub/menu.lst"
46 #define	BE_SPARC_MENU		"/boot/menu.lst"
47 #define	BE_GRUB_COMMENT		"#============ End of LIBBE entry ============="
48 #define	BE_WHITE_SPACE		" \t\r\n"
49 #define	BE_CAP_FILE		"/boot/grub/capability"
50 #define	BE_INSTALL_GRUB		"/sbin/installgrub"
51 #define	BE_STAGE_1		"/boot/grub/stage1"
52 #define	BE_STAGE_2		"/boot/grub/stage2"
53 #define	ZFS_CLOSE(_zhp) \
54 	if (_zhp) { \
55 		zfs_close(_zhp); \
56 		_zhp = NULL; \
57 	}
58 
59 #define	BE_ZONE_PARENTBE_PROPERTY	"org.opensolaris.libbe:parentbe"
60 #define	BE_ZONE_ACTIVE_PROPERTY		"org.opensolaris.libbe:active"
61 #define	BE_ZONE_SUPPORTED_BRANDS	"ipkg labeled"
62 #define	BE_ZONE_SUPPORTED_BRANDS_DELIM	" "
63 
64 /* Maximum length for the BE name. */
65 #define	BE_NAME_MAX_LEN		64
66 
67 #define	MAX(a, b) ((a) > (b) ? (a) : (b))
68 #define	MIN(a, b) ((a) < (b) ? (a) : (b))
69 
70 typedef struct be_transaction_data {
71 	char		*obe_name;	/* Original BE name */
72 	char		*obe_root_ds;	/* Original BE root dataset */
73 	char		*obe_zpool;	/* Original BE pool */
74 	char		*obe_snap_name;	/* Original BE snapshot name */
75 	char		*obe_altroot;	/* Original BE altroot */
76 	char 		*nbe_name;	/* New BE name */
77 	char		*nbe_root_ds;	/* New BE root dataset */
78 	char		*nbe_zpool;	/* New BE pool */
79 	char		*nbe_desc;	/* New BE description */
80 	nvlist_t	*nbe_zfs_props;	/* New BE dataset properties */
81 	char		*policy;	/* BE policy type */
82 } be_transaction_data_t;
83 
84 typedef struct be_mount_data {
85 	char		*altroot;	/* Location of where to mount BE */
86 	boolean_t	shared_fs;	/* Mount shared file sytsems */
87 	boolean_t	shared_rw;	/* Mount shared file systems rw */
88 } be_mount_data_t;
89 
90 typedef struct be_unmount_data {
91 	char		*altroot;	/* Location of where BE is mounted */
92 	boolean_t	force;		/* Forcibly unmount */
93 } be_unmount_data_t;
94 
95 typedef struct be_destroy_data {
96 	boolean_t	destroy_snaps;	/* Destroy snapshots of BE */
97 	boolean_t	force_unmount;	/* Forcibly unmount BE if mounted */
98 	uuid_t		gz_be_uuid;	/* UUID of the global zone BE */
99 } be_destroy_data_t;
100 
101 typedef struct be_demote_data {
102 	zfs_handle_t	*clone_zhp;	/* clone dataset to promote */
103 	time_t		origin_creation; /* snapshot creation time of clone */
104 	const char	*snapshot;	/* snapshot of dataset being demoted */
105 	boolean_t	find_in_BE;	/* flag noting to find clone in BE */
106 } be_demote_data_t;
107 
108 typedef struct be_fs_list_data {
109 	char		*altroot;
110 	char		**fs_list;
111 	int		fs_num;
112 } be_fs_list_data_t;
113 
114 typedef struct be_plcy_list {
115 	char			*be_plcy_name;
116 	int			be_num_max;
117 	int			be_num_min;
118 	time_t			be_age_max;
119 	int			be_usage_pcnt;
120 	struct be_plcy_list	*be_next_plcy;
121 }be_plcy_list_t;
122 
123 /* Library globals */
124 extern libzfs_handle_t *g_zfs;
125 extern boolean_t do_print;
126 
127 /* be_create.c */
128 int be_set_uuid(char *);
129 int be_get_uuid(const char *, uuid_t *);
130 
131 /* be_list.c */
132 int _be_list(char *, be_node_list_t **);
133 int be_get_zone_be_list(char *, char *, be_node_list_t **);
134 
135 /* be_mount.c */
136 int _be_mount(char *, char **, int);
137 int _be_unmount(char *, int);
138 int be_mount_pool(zfs_handle_t *, char **, char **, boolean_t *);
139 int be_unmount_pool(zfs_handle_t *, char *, char *);
140 int be_mount_zone_root(zfs_handle_t *, be_mount_data_t *);
141 int be_unmount_zone_root(zfs_handle_t *, be_unmount_data_t *);
142 int be_get_legacy_fs(char *, char *, char *, char *, be_fs_list_data_t *);
143 void be_free_fs_list(be_fs_list_data_t *);
144 char *be_get_ds_from_dir(char *);
145 int be_make_tmp_mountpoint(char **);
146 
147 /* be_snapshot.c */
148 int _be_create_snapshot(char *, char **, char *);
149 int _be_destroy_snapshot(char *, char *);
150 
151 /* be_utils.c */
152 boolean_t be_zfs_init(void);
153 void be_zfs_fini(void);
154 void be_make_root_ds(const char *, const char *, char *, int);
155 void be_make_container_ds(const char *, char *, int);
156 char *be_make_name_from_ds(const char *, char *);
157 int be_append_menu(char *, char *, char *, char *, char *);
158 int be_remove_menu(char *, char *, char *);
159 int be_update_menu(char *, char *, char *, char *);
160 int be_default_grub_bootfs(const char *, char **);
161 boolean_t be_has_menu_entry(char *, char *, int *);
162 int be_run_cmd(char *, char *, int, char *, int);
163 int be_change_grub_default(char *, char *);
164 int be_update_vfstab(char *, char *, char *, be_fs_list_data_t *, char *);
165 int be_update_zone_vfstab(zfs_handle_t *, char *, char *, char *,
166     be_fs_list_data_t *);
167 int be_maxsize_avail(zfs_handle_t *, uint64_t *);
168 char *be_auto_snap_name(void);
169 char *be_auto_be_name(char *);
170 char *be_auto_zone_be_name(char *, char *);
171 char *be_default_policy(void);
172 boolean_t valid_be_policy(char *);
173 boolean_t be_valid_auto_snap_name(char *);
174 boolean_t be_valid_be_name(const char *);
175 void be_print_err(char *, ...);
176 int be_find_current_be(be_transaction_data_t *);
177 int zfs_err_to_be_err(libzfs_handle_t *);
178 int errno_to_be_err(int);
179 
180 /* be_activate.c */
181 int _be_activate(char *);
182 int be_activate_current_be(void);
183 boolean_t be_is_active_on_boot(char *);
184 
185 /* be_zones.c */
186 void be_make_zoneroot(char *, char *, int);
187 int be_find_active_zone_root(zfs_handle_t *, char *, char *, int);
188 int be_find_mounted_zone_root(char *, char *, char *, int);
189 boolean_t be_zone_supported(char *);
190 zoneBrandList_t *be_get_supported_brandlist(void);
191 int be_zone_get_parent_uuid(const char *, uuid_t *);
192 
193 /* check architecture functions */
194 char *be_get_default_isa(void);
195 boolean_t be_is_isa(char *);
196 boolean_t be_has_grub(void);
197 
198 /* callback functions */
199 int be_exists_callback(zpool_handle_t *, void *);
200 int be_find_zpool_callback(zpool_handle_t *, void *);
201 int be_zpool_find_current_be_callback(zpool_handle_t *, void *);
202 int be_zfs_find_current_be_callback(zfs_handle_t *, void *);
203 int be_check_be_roots_callback(zpool_handle_t *, void *);
204 
205 #ifdef __cplusplus
206 }
207 #endif
208 
209 #endif	/* _LIBBE_PRIV_H */
210