91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
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#ifndef _UDP_API_H
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#define _UDP_API_H
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#include "pxe_cmn.h"
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/* = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = */
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/* #defines and constants
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*/
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/* One of the following command op-codes needs to be loaded into the
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* op-code register (BX) before making a call a UDP API service.
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*/
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#define PXENV_UDP_OPEN 0x30
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#define PXENV_UDP_CLOSE 0x31
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#define PXENV_UDP_READ 0x32
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#define PXENV_UDP_WRITE 0x33
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typedef struct s_PXENV_UDP_OPEN {
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UINT16 Status; /* Out: See PXENV_STATUS_xxx */
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/* constants. */
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UINT8 SrcIp[4]; /* Out: 32-bit IP address of this station. */
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} t_PXENV_UDP_OPEN;
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typedef struct s_PXENV_UDP_CLOSE {
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UINT16 Status; /* Out: See PXENV_STATUS_xxx */
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/* constants. */
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} t_PXENV_UDP_CLOSE;
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typedef struct s_PXENV_UDP_READ {
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UINT16 Status; /* Out: See PXENV_STATUS_xxx #defines. */
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UINT8 SrcIp[4]; /* Out: See description below */
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UINT8 DestIp[4]; /* In/Out: See description below */
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UINT16 SrcPort; /* Out: See description below */
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UINT16 DestPort; /* In/Out: See description below */
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UINT16 BufferSize; /* In: Size of receive buffer. */
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/* Out: Length of packet written into */
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/* receive buffer. */
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UINT16 BufferOffset; /* In: Segment/Selector and offset */
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UINT16 BufferSegment; /* of receive buffer. */
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} t_PXENV_UDP_READ;
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/*
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src_ip: (Output)
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======
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UDP_READ fills this value on return with the 32-bit IP address
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of the sender.
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dest_ip: (Input/Output)
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=======
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If this field is non-zero then UDP_READ will filter the incoming
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packets and accept those that are sent to this IP address.
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If this field is zero then UDP_READ will accept any incoming
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packet and return it's destination IP address in this field.
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s_port: (Output)
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=======
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UDP_READ fills this value on return with the UDP port number
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of the sender.
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d_port: (Input/Output)
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=======
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If this field is non-zero then UDP_READ will filter the incoming
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packets and accept those that are sent to this UDP port.
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If this field is zero then UDP_READ will accept any incoming
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packet and return it's destination UDP port in this field.
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*/
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typedef struct s_PXENV_UDP_WRITE {
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UINT16 Status; /* Out: See PXENV_STATUS_xxx */
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/* constants. */
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UINT8 DestIp[4]; /* In: 32-bit server IP address. */
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UINT8 GatewayIp[4]; /* In: 32-bit gateway IP address. */
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UINT16 SrcPort; /* In: Source UDP port. */
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UINT16 DestPort; /* In: Destination UDP port. */
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UINT16 BufferSize; /* In: Length of packet in buffer. */
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UINT16 BufferOffset; /* In: Segment/Selector and */
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UINT16 BufferSegment; /* offset of transmit buffer. */
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} t_PXENV_UDP_WRITE;
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#endif /* _UDP_API_H */
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