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