/*      $OpenBSD: mdesc.h,v 1.4 2019/10/20 16:27:19 kettenis Exp $      */
/*
 * Copyright (c) 2009 Mark Kettenis
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

struct md_header {
        uint32_t        transport_version;
        uint32_t        node_blk_sz;
        uint32_t        name_blk_sz;
        uint32_t        data_blk_sz;
};

struct md_element {
        uint8_t         tag;
        uint8_t         name_len;
        uint16_t        _reserved_field;
        uint32_t        name_offset;
        union {
                struct {
                        uint32_t        data_len;
                        uint32_t        data_offset;
                } y;
                uint64_t        val;
        } d;
};

#ifdef _KERNEL

extern caddr_t mdesc;
extern size_t mdesc_len;

extern caddr_t pri;
extern size_t pri_len;

void     mdesc_init(void);
uint64_t mdesc_get_prop_val(int, const char *);
const char *mdesc_get_prop_str(int, const char *);
const char *mdesc_get_prop_data(int, const char *, size_t *);
int     mdesc_find(const char *, uint64_t);
int     mdesc_find_child(int, const char *, uint64_t);
int     mdesc_find_node(const char *);

#endif