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#define __NET_PACKET_HEADER_H__
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#define __NET_PACKET_HEADER_H__
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#include "packet.h"
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#include "packet.h"
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/** Returns the actual packet data length.
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/** Returns the actual packet data length.
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 *  @param header The packet header. Input parameter.
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 *  @param[in] header The packet header.
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 */
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 */
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#define PACKET_DATA_LENGTH( header )        (( header )->data_end - ( header )->data_start )
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#define PACKET_DATA_LENGTH( header )        (( header )->data_end - ( header )->data_start )
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/** Returns the maximum packet address length.
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/** Returns the maximum packet address length.
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 *  @param header The packet header. Input parameter.
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 *  @param[in] header The packet header.
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 */
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 */
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#define PACKET_MAX_ADDRESS_LENGTH( header )     (( header )->dest_addr - ( header )->src_addr )
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#define PACKET_MAX_ADDRESS_LENGTH( header )     (( header )->dest_addr - ( header )->src_addr )
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/** Returns the minimum packet suffix.
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/** Returns the minimum packet suffix.
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 *  @param header The packet header. Input parameter.
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 *  @param[in] header The packet header.
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 */
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 */
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#define PACKET_MIN_SUFFIX( header )     (( header )->length - ( header )->data_start - ( header )->max_content )
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#define PACKET_MIN_SUFFIX( header )     (( header )->length - ( header )->data_start - ( header )->max_content )
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/** Packet integrity check magic value.
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/** Packet integrity check magic value.
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 */
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 */
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     */
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     */
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    int             magic_value;
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    int             magic_value;
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};
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};
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/** Returns whether the packet is valid.
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/** Returns whether the packet is valid.
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 *  @param packet The packet to be checked. Input parameter.
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 *  @param[in] packet The packet to be checked.
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 *  @returns true if the packet is not NULL and the magic value is correct.
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 *  @returns true if the packet is not NULL and the magic value is correct.
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 *  @returns false otherwise.
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 *  @returns false otherwise.
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 */
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 */
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static inline int   packet_is_valid( const packet_t packet ){
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static inline int   packet_is_valid( const packet_t packet ){
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    return packet && ( packet->magic_value == PACKET_MAGIC_VALUE );
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    return packet && ( packet->magic_value == PACKET_MAGIC_VALUE );