/*-
* Copyright (c) 2005 Ivan Voras <ivoras@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 AUTHORS 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 AUTHORS 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/param.h>
#include <sys/endian.h>
#include <geom/virstor/g_virstor_md.h>
#include <geom/virstor/binstream.h>
/*
* Encode data from g_virstor_metadata structure into a endian-independant
* byte stream.
*/
void
virstor_metadata_encode(struct g_virstor_metadata *md, unsigned char *data)
{
bin_stream_t bs;
bs_open(&bs, data);
bs_write_buf(&bs, md->md_magic, sizeof(md->md_magic));
bs_write_u32(&bs, md->md_version);
bs_write_buf(&bs, md->md_name, sizeof(md->md_name));
bs_write_u64(&bs, md->md_virsize);
bs_write_u32(&bs, md->md_chunk_size);
bs_write_u32(&bs, md->md_id);
bs_write_u16(&bs, md->md_count);
bs_write_buf(&bs, md->provider, sizeof(md->provider));
bs_write_u16(&bs, md->no);
bs_write_u64(&bs, md->provsize);
bs_write_u32(&bs, md->chunk_count);
bs_write_u32(&bs, md->chunk_next);
bs_write_u16(&bs, md->chunk_reserved);
bs_write_u16(&bs, md->flags);
}
/*
* Decode data from endian-independant byte stream into g_virstor_metadata
* structure.
*/
void
virstor_metadata_decode(unsigned char *data, struct g_virstor_metadata *md)
{
bin_stream_t bs;
bs_open(&bs, (char *)(data));
bs_read_buf(&bs, md->md_magic, sizeof(md->md_magic));
md->md_version = bs_read_u32(&bs);
bs_read_buf(&bs, md->md_name, sizeof(md->md_name));
md->md_virsize = bs_read_u64(&bs);
md->md_chunk_size = bs_read_u32(&bs);
md->md_id = bs_read_u32(&bs);
md->md_count = bs_read_u16(&bs);
bs_read_buf(&bs, md->provider, sizeof(md->provider));
md->no = bs_read_u16(&bs);
md->provsize = bs_read_u64(&bs);
md->chunk_count = bs_read_u32(&bs);
md->chunk_next = bs_read_u32(&bs);
md->chunk_reserved = bs_read_u16(&bs);
md->flags = bs_read_u16(&bs);
}
