icmp.h

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#ifndef _GPXE_ICMP_H
#define _GPXE_ICMP_H

/** @file
 *
 * ICMP protocol
 *
 */

FILE_LICENCE ( GPL2_OR_LATER );

/** An ICMP header */
struct icmp_header {
        /** Type */
        uint8_t type;
        /** Code */
        uint8_t code;
        /** Checksum */
        uint16_t chksum;
} __attribute__ (( packed ));

#define ICMP_ECHO_RESPONSE 0
#define ICMP_ECHO_REQUEST 8

#endif /* _GPXE_ICMP_H */