[mirror_zfs-debian.git] / lib / libzfs / include / libzfs_impl.h

/*
 * CDDL HEADER SART
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef	_LIBFS_IMPL_H
#define	_LIBFS_IMPL_H

#include <sys/dmu.h>
#include <sys/fs/zfs.h>
#include <sys/zfs_ioctl.h>
#include <sys/spa.h>
#include <sys/nvpair.h>

#include <libuutil.h>
#include <libzfs.h>
#include <libshare.h>

#if defined(HAVE_LIBTOPO)
#include <fm/libtopo.h>
#endif /* HAVE_LIBTOPO */

#ifdef	__cplusplus
extern "C" {
#endif

#ifdef	VERIFY
#undef	VERIFY
#endif
#define	VERIFY	verify

typedef struct libzfs_fru {
	char *zf_device;
	char *zf_fru;
	struct libzfs_fru *zf_chain;
	struct libzfs_fru *zf_next;
} libzfs_fru_t;

struct libzfs_handle {
	int libzfs_error;
	int libzfs_fd;
	FILE *libzfs_mnttab;
	FILE *libzfs_sharetab;
	zpool_handle_t *libzfs_pool_handles;
	uu_avl_pool_t *libzfs_ns_avlpool;
	uu_avl_t *libzfs_ns_avl;
	uint64_t libzfs_ns_gen;
	int libzfs_desc_active;
	char libzfs_action[1024];
	char libzfs_desc[1024];
	char *libzfs_log_str;
	int libzfs_printerr;
	int libzfs_storeerr; /* stuff error messages into buffer */
	void *libzfs_sharehdl; /* libshare handle */
	uint_t libzfs_shareflags;
	boolean_t libzfs_mnttab_enable;
	avl_tree_t libzfs_mnttab_cache;
	int libzfs_pool_iter;
#if defined(HAVE_LIBTOPO)
	topo_hdl_t *libzfs_topo_hdl;
	libzfs_fru_t **libzfs_fru_hash;
	libzfs_fru_t *libzfs_fru_list;
#endif /* HAVE_LIBTOPO */
	char libzfs_chassis_id[256];
};

#define	ZFSSHARE_MISS	0x01	/* Didn't find entry in cache */

struct zfs_handle {
	libzfs_handle_t *zfs_hdl;
	zpool_handle_t *zpool_hdl;
	char zfs_name[ZFS_MAXNAMELEN];
	zfs_type_t zfs_type; /* type including snapshot */
	zfs_type_t zfs_head_type; /* type excluding snapshot */
	dmu_objset_stats_t zfs_dmustats;
	nvlist_t *zfs_props;
	nvlist_t *zfs_user_props;
	nvlist_t *zfs_recvd_props;
	boolean_t zfs_mntcheck;
	char *zfs_mntopts;
	uint8_t *zfs_props_table;
};

/*
 * This is different from checking zfs_type, because it will also catch
 * snapshots of volumes.
 */
#define	ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME)

struct zpool_handle {
	libzfs_handle_t *zpool_hdl;
	zpool_handle_t *zpool_next;
	char zpool_name[ZPOOL_MAXNAMELEN];
	int zpool_state;
	size_t zpool_config_size;
	nvlist_t *zpool_config;
	nvlist_t *zpool_old_config;
	nvlist_t *zpool_props;
	diskaddr_t zpool_start_block;
};

typedef  enum {
	PROTO_NFS = 0,
	PROTO_SMB = 1,
	PROTO_END = 2
} zfs_share_proto_t;

/*
 * The following can be used as a bitmask and any new values
 * added must preserve that capability.
 */
typedef enum {
	SHARED_NOT_SHARED = 0x0,
	SHARED_NFS = 0x2,
	SHARED_SMB = 0x4
} zfs_share_type_t;

int zfs_error(libzfs_handle_t *, int, const char *);
int zfs_error_fmt(libzfs_handle_t *, int, const char *, ...);
void zfs_error_aux(libzfs_handle_t *, const char *, ...);
void *zfs_alloc(libzfs_handle_t *, size_t);
void *zfs_realloc(libzfs_handle_t *, void *, size_t, size_t);
char *zfs_asprintf(libzfs_handle_t *, const char *, ...);
char *zfs_strdup(libzfs_handle_t *, const char *);
int no_memory(libzfs_handle_t *);

int zfs_standard_error(libzfs_handle_t *, int, const char *);
int zfs_standard_error_fmt(libzfs_handle_t *, int, const char *, ...);
int zpool_standard_error(libzfs_handle_t *, int, const char *);
int zpool_standard_error_fmt(libzfs_handle_t *, int, const char *, ...);

int get_dependents(libzfs_handle_t *, boolean_t, const char *, char ***,
    size_t *);


int zprop_parse_value(libzfs_handle_t *, nvpair_t *, int, zfs_type_t,
    nvlist_t *, char **, uint64_t *, const char *);
int zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp,
    zfs_type_t type);

/*
 * Use this changelist_gather() flag to force attempting mounts
 * on each change node regardless of whether or not it is currently
 * mounted.
 */
#define	CL_GATHER_MOUNT_ALWAYS	1

typedef struct prop_changelist prop_changelist_t;

int zcmd_alloc_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, size_t);
int zcmd_write_src_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *);
int zcmd_write_conf_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *);
int zcmd_expand_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *);
int zcmd_read_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t **);
void zcmd_free_nvlists(zfs_cmd_t *);

int changelist_prefix(prop_changelist_t *);
int changelist_postfix(prop_changelist_t *);
void changelist_rename(prop_changelist_t *, const char *, const char *);
void changelist_remove(prop_changelist_t *, const char *);
void changelist_free(prop_changelist_t *);
prop_changelist_t *changelist_gather(zfs_handle_t *, zfs_prop_t, int, int);
int changelist_unshare(prop_changelist_t *, zfs_share_proto_t *);
int changelist_haszonedchild(prop_changelist_t *);

void remove_mountpoint(zfs_handle_t *);
int create_parents(libzfs_handle_t *, char *, int);
boolean_t isa_child_of(const char *dataset, const char *parent);

zfs_handle_t *make_dataset_handle(libzfs_handle_t *, const char *);

int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **);

int zvol_create_link(libzfs_handle_t *, const char *);
int zvol_remove_link(libzfs_handle_t *, const char *);
boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *);

int zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type,
    boolean_t modifying);

void namespace_clear(libzfs_handle_t *);

/*
 * libshare (sharemgr) interfaces used internally.
 */

extern int zfs_init_libshare(libzfs_handle_t *, int);
extern void zfs_uninit_libshare(libzfs_handle_t *);
extern int zfs_parse_options(char *, zfs_share_proto_t);

extern int zfs_unshare_proto(zfs_handle_t *,
    const char *, zfs_share_proto_t *);

extern void libzfs_fru_clear(libzfs_handle_t *, boolean_t);

#ifdef	__cplusplus
}
#endif

#endif	/* _LIBFS_IMPL_H */
Commit	Line	Data
34dc7c2f BB	1	/*
	2	* CDDL HEADER SART
	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	/*
572e2857	23	* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
34dc7c2f BB	24	*/
	25
	26	#ifndef _LIBFS_IMPL_H
	27	#define _LIBFS_IMPL_H
	28
34dc7c2f BB	29	#include <sys/dmu.h>
	30	#include <sys/fs/zfs.h>
	31	#include <sys/zfs_ioctl.h>
34dc7c2f BB	32	#include <sys/spa.h>
	33	#include <sys/nvpair.h>
	34
	35	#include <libuutil.h>
	36	#include <libzfs.h>
	37	#include <libshare.h>
	38
6b003d7c	39	#if defined(HAVE_LIBTOPO)
428870ff	40	#include <fm/libtopo.h>
6b003d7c	41	#endif /* HAVE_LIBTOPO */
428870ff	42
34dc7c2f BB	43	#ifdef __cplusplus
	44	extern "C" {
	45	#endif
	46
	47	#ifdef VERIFY
	48	#undef VERIFY
	49	#endif
	50	#define VERIFY verify
	51
428870ff BB	52	typedef struct libzfs_fru {
	53	char *zf_device;
	54	char *zf_fru;
	55	struct libzfs_fru *zf_chain;
	56	struct libzfs_fru *zf_next;
	57	} libzfs_fru_t;
	58
34dc7c2f BB	59	struct libzfs_handle {
	60	int libzfs_error;
	61	int libzfs_fd;
	62	FILE *libzfs_mnttab;
	63	FILE *libzfs_sharetab;
b128c09f	64	zpool_handle_t *libzfs_pool_handles;
34dc7c2f BB	65	uu_avl_pool_t *libzfs_ns_avlpool;
	66	uu_avl_t *libzfs_ns_avl;
	67	uint64_t libzfs_ns_gen;
	68	int libzfs_desc_active;
	69	char libzfs_action[1024];
	70	char libzfs_desc[1024];
	71	char *libzfs_log_str;
	72	int libzfs_printerr;
572e2857	73	int libzfs_storeerr; /* stuff error messages into buffer */
34dc7c2f BB	74	void libzfs_sharehdl; / libshare handle */
34dc7c2f BB	75	uint_t libzfs_shareflags;
9babb374	76	boolean_t libzfs_mnttab_enable;
fb5f0bc8	77	avl_tree_t libzfs_mnttab_cache;
428870ff	78	int libzfs_pool_iter;
6b003d7c	79	#if defined(HAVE_LIBTOPO)
428870ff BB	80	topo_hdl_t *libzfs_topo_hdl;
	81	libzfs_fru_t **libzfs_fru_hash;
	82	libzfs_fru_t *libzfs_fru_list;
6b003d7c	83	#endif /* HAVE_LIBTOPO */
428870ff	84	char libzfs_chassis_id[256];
34dc7c2f	85	};
428870ff	86
34dc7c2f BB	87	#define ZFSSHARE_MISS 0x01 /* Didn't find entry in cache */
	88
	89	struct zfs_handle {
	90	libzfs_handle_t *zfs_hdl;
b128c09f	91	zpool_handle_t *zpool_hdl;
34dc7c2f BB	92	char zfs_name[ZFS_MAXNAMELEN];
	93	zfs_type_t zfs_type; /* type including snapshot */
	94	zfs_type_t zfs_head_type; /* type excluding snapshot */
	95	dmu_objset_stats_t zfs_dmustats;
	96	nvlist_t *zfs_props;
	97	nvlist_t *zfs_user_props;
428870ff	98	nvlist_t *zfs_recvd_props;
34dc7c2f BB	99	boolean_t zfs_mntcheck;
34dc7c2f BB	100	char *zfs_mntopts;
9babb374	101	uint8_t *zfs_props_table;
34dc7c2f BB	102	};
	103
	104	/*
	105	* This is different from checking zfs_type, because it will also catch
	106	* snapshots of volumes.
	107	*/
	108	#define ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME)
	109
	110	struct zpool_handle {
	111	libzfs_handle_t *zpool_hdl;
b128c09f	112	zpool_handle_t *zpool_next;
34dc7c2f BB	113	char zpool_name[ZPOOL_MAXNAMELEN];
	114	int zpool_state;
	115	size_t zpool_config_size;
	116	nvlist_t *zpool_config;
	117	nvlist_t *zpool_old_config;
	118	nvlist_t *zpool_props;
	119	diskaddr_t zpool_start_block;
	120	};
	121
	122	typedef enum {
	123	PROTO_NFS = 0,
	124	PROTO_SMB = 1,
	125	PROTO_END = 2
	126	} zfs_share_proto_t;
	127
	128	/*
	129	* The following can be used as a bitmask and any new values
	130	* added must preserve that capability.
	131	*/
	132	typedef enum {
	133	SHARED_NOT_SHARED = 0x0,
34dc7c2f BB	134	SHARED_NFS = 0x2,
	135	SHARED_SMB = 0x4
	136	} zfs_share_type_t;
	137
	138	int zfs_error(libzfs_handle_t , int, const char );
	139	int zfs_error_fmt(libzfs_handle_t , int, const char , ...);
	140	void zfs_error_aux(libzfs_handle_t , const char , ...);
	141	void zfs_alloc(libzfs_handle_t , size_t);
	142	void zfs_realloc(libzfs_handle_t , void *, size_t, size_t);
572e2857	143	char zfs_asprintf(libzfs_handle_t , const char *, ...);
34dc7c2f BB	144	char zfs_strdup(libzfs_handle_t , const char *);
	145	int no_memory(libzfs_handle_t *);
	146
	147	int zfs_standard_error(libzfs_handle_t , int, const char );
	148	int zfs_standard_error_fmt(libzfs_handle_t , int, const char , ...);
	149	int zpool_standard_error(libzfs_handle_t , int, const char );
	150	int zpool_standard_error_fmt(libzfs_handle_t , int, const char , ...);
	151
	152	int get_dependents(libzfs_handle_t , boolean_t, const char , char ***,
	153	size_t *);
	154
	155
	156	int zprop_parse_value(libzfs_handle_t , nvpair_t , int, zfs_type_t,
	157	nvlist_t , char , uint64_t , const char *);
	158	int zprop_expand_list(libzfs_handle_t hdl, zprop_list_t *plp,
	159	zfs_type_t type);
	160
b128c09f BB	161	/*
	162	* Use this changelist_gather() flag to force attempting mounts
	163	* on each change node regardless of whether or not it is currently
	164	* mounted.
	165	*/
	166	#define CL_GATHER_MOUNT_ALWAYS 1
	167
34dc7c2f BB	168	typedef struct prop_changelist prop_changelist_t;
	169
	170	int zcmd_alloc_dst_nvlist(libzfs_handle_t , zfs_cmd_t , size_t);
	171	int zcmd_write_src_nvlist(libzfs_handle_t , zfs_cmd_t , nvlist_t *);
	172	int zcmd_write_conf_nvlist(libzfs_handle_t , zfs_cmd_t , nvlist_t *);
	173	int zcmd_expand_dst_nvlist(libzfs_handle_t , zfs_cmd_t );
	174	int zcmd_read_dst_nvlist(libzfs_handle_t , zfs_cmd_t , nvlist_t **);
	175	void zcmd_free_nvlists(zfs_cmd_t *);
	176
	177	int changelist_prefix(prop_changelist_t *);
	178	int changelist_postfix(prop_changelist_t *);
	179	void changelist_rename(prop_changelist_t , const char , const char *);
	180	void changelist_remove(prop_changelist_t , const char );
	181	void changelist_free(prop_changelist_t *);
b128c09f	182	prop_changelist_t changelist_gather(zfs_handle_t , zfs_prop_t, int, int);
34dc7c2f BB	183	int changelist_unshare(prop_changelist_t , zfs_share_proto_t );
	184	int changelist_haszonedchild(prop_changelist_t *);
	185
	186	void remove_mountpoint(zfs_handle_t *);
	187	int create_parents(libzfs_handle_t , char , int);
	188	boolean_t isa_child_of(const char dataset, const char parent);
	189
	190	zfs_handle_t make_dataset_handle(libzfs_handle_t , const char *);
	191
	192	int zpool_open_silent(libzfs_handle_t , const char , zpool_handle_t **);
	193
d603ed6c BB	194	int zvol_create_link(libzfs_handle_t , const char );
d603ed6c BB	195	int zvol_remove_link(libzfs_handle_t , const char );
34dc7c2f BB	196	boolean_t zpool_name_valid(libzfs_handle_t , boolean_t, const char );
34dc7c2f BB	197
572e2857 BB	198	int zfs_validate_name(libzfs_handle_t hdl, const char path, int type,
	199	boolean_t modifying);
	200
34dc7c2f BB	201	void namespace_clear(libzfs_handle_t *);
	202
	203	/*
	204	* libshare (sharemgr) interfaces used internally.
	205	*/
	206
	207	extern int zfs_init_libshare(libzfs_handle_t *, int);
	208	extern void zfs_uninit_libshare(libzfs_handle_t *);
	209	extern int zfs_parse_options(char *, zfs_share_proto_t);
	210
9babb374	211	extern int zfs_unshare_proto(zfs_handle_t *,
34dc7c2f	212	const char , zfs_share_proto_t );
428870ff BB	213
	214	extern void libzfs_fru_clear(libzfs_handle_t *, boolean_t);
	215
34dc7c2f BB	216	#ifdef __cplusplus
	217	}
	218	#endif
	219
	220	#endif /* _LIBFS_IMPL_H */