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/*
* Copyright (c) 2012 Andriy Gapon <avg@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _BOOT_LIBZFS_H_
#define _BOOT_LIBZFS_H_
#include <zfsimpl.h>
#define ZFS_MAXNAMELEN 256
/*
* ZFS fully-qualified device descriptor.
*/
struct zfs_devdesc {
struct devdesc dd; /* Must be first. */
uint64_t pool_guid;
uint64_t root_guid;
};
/* nvp implementation version */
#define NV_VERSION 0
/* nvlist persistent unique name flags, stored in nvl_nvflags */
#define NV_UNIQUE_NAME 0x1
#define NV_UNIQUE_NAME_TYPE 0x2
#define NV_ALIGN4(x) (((x) + 3) & ~3)
#define NV_ALIGN(x) (((x) + 7) & ~7)
/*
* nvlist header.
* nvlist has 4 bytes header followed by version and flags, then nvpairs
* and the list is terminated by double zero.
*/
typedef struct {
char nvh_encoding;
char nvh_endian;
char nvh_reserved1;
char nvh_reserved2;
} nvs_header_t;
typedef struct {
nvs_header_t nv_header;
size_t nv_asize;
size_t nv_size;
uint8_t *nv_data;
uint8_t *nv_idx;
} nvlist_t;
/*
* nvpair header.
* nvpair has encoded and decoded size
* name string (size and data)
* data type and number of elements
* data
*/
typedef struct {
unsigned encoded_size;
unsigned decoded_size;
} nvp_header_t;
/*
* nvlist stream head.
*/
typedef struct {
unsigned nvl_version;
unsigned nvl_nvflag;
nvp_header_t nvl_pair;
} nvs_data_t;
typedef struct {
unsigned nv_size;
uint8_t nv_data[]; /* NV_ALIGN4(string) */
} nv_string_t;
typedef struct {
unsigned nv_type; /* data_type_t */
unsigned nv_nelem; /* number of elements */
uint8_t nv_data[]; /* data stream */
} nv_pair_data_t;
nvlist_t *nvlist_create(int);
void nvlist_destroy(nvlist_t *);
nvlist_t *nvlist_import(const char *, size_t);
int nvlist_export(nvlist_t *);
int nvlist_remove(nvlist_t *, const char *, data_type_t);
int nvpair_type_from_name(const char *);
nvp_header_t *nvpair_find(nvlist_t *, const char *);
void nvpair_print(nvp_header_t *, unsigned int);
void nvlist_print(const nvlist_t *, unsigned int);
char *nvstring_get(nv_string_t *);
int nvlist_find(const nvlist_t *, const char *, data_type_t,
int *, void *, int *);
nvp_header_t *nvlist_next_nvpair(nvlist_t *, nvp_header_t *);
int nvlist_add_boolean_value(nvlist_t *, const char *, boolean_t);
int nvlist_add_byte(nvlist_t *, const char *, uint8_t);
int nvlist_add_int8(nvlist_t *, const char *, int8_t);
int nvlist_add_uint8(nvlist_t *, const char *, uint8_t);
int nvlist_add_int16(nvlist_t *, const char *, int16_t);
int nvlist_add_uint16(nvlist_t *, const char *, uint16_t);
int nvlist_add_int32(nvlist_t *, const char *, int32_t);
int nvlist_add_uint32(nvlist_t *, const char *, uint32_t);
int nvlist_add_int64(nvlist_t *, const char *, int64_t);
int nvlist_add_uint64(nvlist_t *, const char *, uint64_t);
int nvlist_add_string(nvlist_t *, const char *, const char *);
int nvlist_add_boolean_array(nvlist_t *, const char *, boolean_t *, uint32_t);
int nvlist_add_byte_array(nvlist_t *, const char *, uint8_t *, uint32_t);
int nvlist_add_int8_array(nvlist_t *, const char *, int8_t *, uint32_t);
int nvlist_add_uint8_array(nvlist_t *, const char *, uint8_t *, uint32_t);
int nvlist_add_int16_array(nvlist_t *, const char *, int16_t *, uint32_t);
int nvlist_add_uint16_array(nvlist_t *, const char *, uint16_t *, uint32_t);
int nvlist_add_int32_array(nvlist_t *, const char *, int32_t *, uint32_t);
int nvlist_add_uint32_array(nvlist_t *, const char *, uint32_t *, uint32_t);
int nvlist_add_int64_array(nvlist_t *, const char *, int64_t *, uint32_t);
int nvlist_add_uint64_array(nvlist_t *, const char *, uint64_t *, uint32_t);
int nvlist_add_string_array(nvlist_t *, const char *, char * const *, uint32_t);
int nvlist_add_nvlist(nvlist_t *, const char *, nvlist_t *);
int nvlist_add_nvlist_array(nvlist_t *, const char *, nvlist_t **, uint32_t);
int zfs_parsedev(struct zfs_devdesc *, const char *, const char **);
char *zfs_bootfs(void *);
char *zfs_fmtdev(void *);
int zfs_probe_dev(const char *, uint64_t *);
int zfs_list(const char *);
int zfs_get_bootonce(void *, const char *, char *, size_t);
int zfs_get_bootenv(void *, nvlist_t **);
int zfs_set_bootenv(void *, nvlist_t *);
int zfs_attach_nvstore(void *);
uint64_t ldi_get_size(void *);
nvlist_t *vdev_read_bootenv(vdev_t *);
extern struct devsw zfs_dev;
extern struct fs_ops zfs_fsops;
#endif /* _BOOT_LIBZFS_H_ */
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