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/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* High-level firmware API for loading and verifying rewritable firmware.
* (Firmware portion)
*/
#include "sysincludes.h"
#include "bmpblk_header.h"
#include "region.h"
#include "gbb_access.h"
#include "gbb_header.h"
#include "load_kernel_fw.h"
#include "utility.h"
#include "vboot_api.h"
#include "vboot_struct.h"
VbError_t VbRegionReadData(VbCommonParams *cparams,
enum vb_firmware_region region, uint32_t offset,
uint32_t size, void *buf)
{
/* This is the old API, for backwards compatibility */
if (region == VB_REGION_GBB && cparams->gbb_data) {
if (offset + size > cparams->gbb_size)
return VBERROR_INVALID_GBB;
Memcpy(buf, cparams->gbb_data + offset, size);
} else
#ifdef REGION_READ
{
VbError_t ret;
ret = VbExRegionRead(cparams, region, offset, size, buf);
if (ret)
return ret;
}
#else
return VBERROR_INVALID_GBB;
#endif
return VBERROR_SUCCESS;
}
VbError_t VbGbbReadHeader_static(VbCommonParams *cparams,
GoogleBinaryBlockHeader *gbb)
{
return VbRegionReadData(cparams, VB_REGION_GBB, 0,
sizeof(GoogleBinaryBlockHeader), gbb);
}
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