    /*====================================================================*
     *
     *   Copyright (c) 2013 Qualcomm Atheros, Inc.
     *
     *   All rights reserved.
     *
     *   Redistribution and use in source and binary forms, with or
     *   without modification, are permitted (subject to the limitations
     *   in the disclaimer below) provided that the following conditions
     *   are met:
     *
     *   * Redistributions of source code must retain the above copyright
     *     notice, this list of conditions and the following disclaimer.
     *
     *   * 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.
     *
     *   * Neither the name of Qualcomm Atheros nor the names of
     *     its contributors may be used to endorse or promote products
     *     derived from this software without specific prior written
     *     permission.
     *
     *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
     *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
     *   COPYRIGHT HOLDERS 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 COPYRIGHT OWNER
     *   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.
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*
     *
     *   signed pibfile2 (struct _file_ const * file);
     *
     *   pib.h
     *
     *   open a panther/lynx PIB file and validate it by
     *   checking file size, checksum and selected internal parameters;
     *   return a file descriptor on success; terminate the program on
     *   error;
     *
     *
     *   Contributor(s):
     *	Charles Maier <cmaier@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

    #ifndef PIBFILE2_SOURCE
    #define PIBFILE2_SOURCE

    #include <stdio.h>
    #include <stdint.h>
    #include <unistd.h>
    #include <memory.h>
    #include <errno.h>

    #include "../tools/memory.h"
    #include "../tools/files.h"
    #include "../tools/error.h"
    #include "../nvm/nvm.h"
    #include "../pib/pib.h"

    signed pibfile2 (struct _file_ const * file)

    {
    	struct nvm_header2 nvm_header;
    	uint32_t origin = ~0;
    	uint32_t offset = 0;
    	unsigned module = 0;
    	if (lseek (file->file, 0, SEEK_SET))
    	{
    		error (1, errno, FILE_CANTHOME, file->name);
    	}
    	do
    	{
    		if (read (file->file, &nvm_header, sizeof (nvm_header)) != sizeof (nvm_header))
    		{
    			error (1, errno, NVM_HDR_CANTREAD, file->name, module);
    		}
    		if (LE16TOH (nvm_header.MajorVersion) != 1)
    		{
    			error (1, errno, NVM_HDR_VERSION, file->name, module);
    		}
    		if (LE16TOH (nvm_header.MinorVersion) != 1)
    		{
    			error (1, errno, NVM_HDR_VERSION, file->name, module);
    		}
    		if (checksum32 (&nvm_header, sizeof (nvm_header), 0))
    		{
    			error (1, errno, NVM_HDR_CHECKSUM, file->name, module);
    		}
    		if (LE32TOH (nvm_header.PrevHeader) != origin)
    		{
    			error (1, errno, NVM_HDR_LINK, file->name, module);
    		}
    		if (LE32TOH (nvm_header.ImageType) == NVM_IMAGE_PIB)
    		{
    			if (fdchecksum32 (file->file, LE32TOH (nvm_header.ImageLength), nvm_header.ImageChecksum))
    			{
    				error (1, errno, NVM_IMG_CHECKSUM, file->name, module);
    			}
    			if (lseek (file->file, 0, SEEK_SET))
    			{
    				error (1, errno, FILE_CANTHOME, file->name);
    			}
    			return (0);
    		}
    		if (fdchecksum32 (file->file, LE32TOH (nvm_header.ImageLength), nvm_header.ImageChecksum))
    		{
    			error (1, errno, NVM_IMG_CHECKSUM, file->name, module);
    		}
    		origin = offset;
    		offset = LE32TOH (nvm_header.NextHeader);
    		module++;
    	}
    	while (~nvm_header.NextHeader);
    	if (lseek (file->file, 0, SEEK_SET))
    	{
    		error (1, errno, FILE_CANTHOME, file->name);
    	}
    	return (-1);
    }

    #endif

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