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/*-
* Copyright (c) 2006 Kip Macy
* 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <machine/cddl/mdesc.h>
#include <machine/cddl/mdesc_impl.h>
int
md_get_prop_alloc(md_t *ptr, mde_cookie_t node, char *namep, int tag_type,
uint8_t **datap)
{
mde_str_cookie_t prop_name;
md_impl_t *mdp;
mde_cookie_t elem;
int len;
mdp = (md_impl_t *)ptr;
if (node == MDE_INVAL_ELEM_COOKIE) {
return (-1);
}
prop_name = md_find_name(ptr, namep);
if (prop_name == MDE_INVAL_STR_COOKIE) {
return (-1);
}
elem = md_find_node_prop(mdp, node, prop_name, tag_type);
if (elem != MDE_INVAL_ELEM_COOKIE) {
md_element_t *mdep;
mdep = &(mdp->mdep[(int)elem]);
len = (int)MDE_PROP_DATA_LEN(mdep);
KASSERT(len > 0, ("invalid length"));
*datap = malloc(len, M_MDPROP, M_WAITOK);
bcopy(mdp->datap + (int)MDE_PROP_DATA_OFFSET(mdep), *datap, len);
return (0);
}
return (-1); /* no such property name */
}
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