| /****************************************************************************** |
| * Copyright (c) 2004, 2008 IBM Corporation |
| * All rights reserved. |
| * This program and the accompanying materials |
| * are made available under the terms of the BSD License |
| * which accompanies this distribution, and is available at |
| * http://www.opensource.org/licenses/bsd-license.php |
| * |
| * Contributors: |
| * IBM Corporation - initial implementation |
| *****************************************************************************/ |
| |
| #ifndef _UDP_H |
| #define _UDP_H |
| |
| #include <stdint.h> |
| |
| #define IPTYPE_UDP 17 |
| |
| #define UDPPORT_BOOTPS 67 /**< UDP port of BootP/DHCP-server */ |
| #define UDPPORT_BOOTPC 68 /**< UDP port of BootP/DHCP-client */ |
| #define UDPPORT_DNSS 53 /**< UDP port of DNS-server */ |
| #define UDPPORT_DNSC 32769 /**< UDP port of DNS-client */ |
| #define UDPPORT_TFTPC 2001 /**< UDP port of TFTP-client */ |
| #define UDPPORT_DHCPV6C 546 /**< UDP port of DHCPv6-client */ |
| |
| /** \struct udphdr |
| * A header for UDP-packets. |
| * For more information see RFC 768. |
| */ |
| struct udphdr { |
| uint16_t uh_sport; /**< Source port */ |
| uint16_t uh_dport; /**< Destinantion port */ |
| uint16_t uh_ulen; /**< Length in octets, incl. this header and data */ |
| uint16_t uh_sum; /**< Checksum */ |
| }; |
| typedef struct udphdr udp_hdr_t; |
| |
| typedef int32_t *(*handle_upper_udp_t)(uint8_t *, int32_t); |
| typedef void *(*handle_upper_udp_dun_t)(uint8_t); |
| |
| /* Handles UDP-packets that are detected by any network layer. */ |
| extern int8_t handle_udp(int fd, uint8_t * udp_packet, uint32_t packetsize); |
| |
| /* Handles UDP related ICMP-Dest.Unreachable packets that are detected by |
| * the network layers. */ |
| extern void handle_udp_dun(uint8_t * udp_packet, uint32_t packetsize, uint8_t err_code); |
| |
| /* fills udp header */ |
| extern void fill_udphdr(uint8_t *packet, uint16_t packetsize, |
| uint16_t src_port, uint16_t dest_port); |
| |
| #endif |
