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#ifndef _IPXE_ICMP_H
#define _IPXE_ICMP_H
/** @file
*
* ICMP protocol
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stdint.h>
#include <ipxe/iobuf.h>
#include <ipxe/socket.h>
#include <ipxe/tcpip.h>
#include <ipxe/tables.h>
/** An ICMP header */
struct icmp_header {
/** Type */
uint8_t type;
/** Code */
uint8_t code;
/** Checksum */
uint16_t chksum;
} __attribute__ (( packed ));
/** An ICMP echo request/reply */
struct icmp_echo {
/** ICMPv6 header */
struct icmp_header icmp;
/** Identifier */
uint16_t ident;
/** Sequence number */
uint16_t sequence;
/** Data */
uint8_t data[0];
} __attribute__ (( packed ));
/** An ICMP echo protocol */
struct icmp_echo_protocol {
/** Address family */
sa_family_t family;
/** Request type */
uint8_t request;
/** Reply type */
uint8_t reply;
/** TCP/IP protocol */
struct tcpip_protocol *tcpip_protocol;
/** Include network-layer checksum within packet */
int net_checksum;
};
/** ICMP echo protocol table */
#define ICMP_ECHO_PROTOCOLS \
__table ( struct icmp_echo_protocol, "icmp_echo_protocols" )
/** Declare an ICMP echo protocol */
#define __icmp_echo_protocol __table_entry ( ICMP_ECHO_PROTOCOLS, 01 )
#define ICMP_ECHO_REPLY 0
#define ICMP_ECHO_REQUEST 8
extern int icmp_tx_echo_request ( struct io_buffer *iobuf,
struct sockaddr_tcpip *st_dest );
extern int icmp_rx_echo_request ( struct io_buffer *iobuf,
struct sockaddr_tcpip *st_src,
struct icmp_echo_protocol *echo_protocol );
extern int icmp_rx_echo_reply ( struct io_buffer *iobuf,
struct sockaddr_tcpip *st_src );
#endif /* _IPXE_ICMP_H */
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