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/*
* CDDL HEADER START
*
* 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
* $FreeBSD$
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _MDESC_IMPL_H_
#define _MDESC_IMPL_H_
#ifdef __cplusplus
extern "C" {
#endif
#define LIBMD_MAGIC 0x4d61636844657363ULL /* MachDesc */
#ifndef _ASM
/*
* Internal definitions
*/
/*
* Each MD has the following header to
* provide information about each section of the MD.
*
* There are 3 sections:
* The description list, the name table and the data block.
*
* All values are stored in network byte order.
*
* Elements in the first (description list) section are defined by their
* index location within the node block. An index is simply the byte offset
* within the block / element size (16bytes). All elements are refered to
* by their index, to avoid bugs related to alignment etc.
*
* The name_len field holds the storage length of an ASCII name, NOT the strlen.
* The header fields are written in network
* byte order.
*/
struct md_header_s {
uint32_t transport_version;
uint32_t node_blk_sz; /* size in bytes of the node block */
uint32_t name_blk_sz; /* size in bytes of the name block */
uint32_t data_blk_sz; /* size in bytes of the data block */
};
typedef struct md_header_s md_header_t;
#if defined(_BIG_ENDIAN) && !defined(lint)
#define mdtoh8(x) ((uint8_t)(x))
#define mdtoh16(x) ((uint16_t)(x))
#define mdtoh32(x) ((uint32_t)(x))
#define mdtoh64(x) ((uint64_t)(x))
#define htomd8(x) (x)
#define htomd16(x) (x)
#define htomd32(x) (x)
#define htomd64(x) (x)
#else
#define mdtoh8(x) ((uint8_t)(x))
extern uint16_t mdtoh16(uint16_t);
extern uint32_t mdtoh32(uint32_t);
extern uint64_t mdtoh64(uint64_t);
#define htomd8(x) ((uint8_t)(x))
extern uint16_t htomd16(uint16_t);
extern uint32_t htomd32(uint32_t);
extern uint64_t htomd64(uint64_t);
#endif
struct MD_ELEMENT {
uint8_t tag;
uint8_t name_len;
uint16_t _reserved;
uint32_t name_offset; /* mde_str_cookie_t */
union {
struct {
uint32_t len;
uint32_t offset;
} prop_data; /* for PROP_DATA and PROP_STR */
uint64_t prop_val; /* for PROP_VAL */
uint64_t prop_idx; /* for PROP_ARC and NODE */
} d;
};
typedef struct MD_ELEMENT md_element_t;
struct MACHINE_DESCRIPTION {
caddr_t caddr;
void *(*allocp)(size_t);
void (*freep)(void *, size_t);
md_header_t *headerp;
md_element_t *mdep;
char *namep;
uint8_t *datap;
int node_blk_size;
int name_blk_size;
int data_blk_size;
int element_count;
int node_count;
mde_cookie_t root_node;
int size;
uint64_t gen;
uint64_t md_magic;
};
typedef struct MACHINE_DESCRIPTION md_impl_t;
#define MDE_TAG(_p) mdtoh8((_p)->tag)
#define MDE_NAME(_p) mdtoh32((_p)->name_offset)
#define MDE_NAME_LEN(_p) mdtoh32((_p)->name_len)
#define MDE_PROP_DATA_OFFSET(_p) mdtoh32((_p)->d.prop_data.offset)
#define MDE_PROP_DATA_LEN(_p) mdtoh32((_p)->d.prop_data.len)
#define MDE_PROP_VALUE(_p) mdtoh64((_p)->d.prop_val)
#define MDE_PROP_INDEX(_p) mdtoh64((_p)->d.prop_idx)
extern mde_str_cookie_t md_ident_name_str(char *);
extern mde_cookie_t md_find_node_prop(md_impl_t *,
mde_cookie_t,
mde_str_cookie_t,
int);
#endif /* _ASM */
#ifdef __cplusplus
}
#endif
#endif /* _MDESC_IMPL_H_ */
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