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This commit is contained in:
Markus
2017-12-25 10:17:23 +01:00
committed by GitHub
parent 7b95647613
commit c6de494f33
100 changed files with 66174 additions and 0 deletions
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48
include/udp.h Normal file
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/*
* File: udp.h
* Purpose: User Datagram Protocol, UDP, data definitions
*
* Notes:
*/
#ifndef _UDP_H
#define _UDP_H
/********************************************************************/
typedef struct
{
uint16_t src_port;
uint16_t dest_port;
uint16_t length;
uint16_t chksum;
} udp_frame_hdr;
#define UDP_SOURCE(a) (a->src_port)
#define UDP_DEST(a) (a->dest_port)
#define UDP_LENGTH(a) (a->length)
#define UDP_CHKSUM(a) (a->chksum)
#define DEFAULT_UDP_PORT (0x4321)
#define UDP_PORT_TELNET (23)
#define UDP_PORT_FTP (21)
#define UDP_PORT_TFTP (69)
/* Protocol Header information */
#define UDP_HDR_OFFSET (ETH_HDR_LEN + IP_HDR_SIZE)
#define UDP_HDR_SIZE 8
/********************************************************************/
extern void udp_init(void);
extern void udp_prime_port(uint16_t);
extern uint16_t udp_obtain_free_port(void);
extern void udp_bind_port( uint16_t, void (*)(NIF *,NBUF *));
extern void udp_free_port(uint16_t);
extern int udp_send(NIF *, uint8_t *, int, int, NBUF *);
extern void udp_handler(NIF *, NBUF *);
/********************************************************************/
#endif /* _UDP_H */