1 /* 2 * Fundamental constants relating to UDP Protocol 3 * 4 * Portions of this code are copyright (c) 2022 Cypress Semiconductor Corporation 5 * 6 * Copyright (C) 1999-2017, Broadcom Corporation 7 * 8 * Unless you and Broadcom execute a separate written software license 9 * agreement governing use of this software, this software is licensed to you 10 * under the terms of the GNU General Public License version 2 (the "GPL"), 11 * available at http://www.broadcom.com/licenses/GPLv2.php, with the 12 * following added to such license: 13 * 14 * As a special exception, the copyright holders of this software give you 15 * permission to link this software with independent modules, and to copy and 16 * distribute the resulting executable under terms of your choice, provided that 17 * you also meet, for each linked independent module, the terms and conditions of 18 * the license of that module. An independent module is a module which is not 19 * derived from this software. The special exception does not apply to any 20 * modifications of the software. 21 * 22 * Notwithstanding the above, under no circumstances may you combine this 23 * software in any way with any other Broadcom software provided under a license 24 * other than the GPL, without Broadcom's express prior written consent. 25 * 26 * 27 * <<Broadcom-WL-IPTag/Open:>> 28 * 29 * $Id$ 30 */ 31 32 #ifndef _bcmudp_h_ 33 #define _bcmudp_h_ 34 35 #ifndef _TYPEDEFS_H_ 36 #include <typedefs.h> 37 #endif // endif 38 39 /* This marks the start of a packed structure section. */ 40 #include <packed_section_start.h> 41 42 /* UDP header */ 43 #define UDP_DEST_PORT_OFFSET 2 /* UDP dest port offset */ 44 #define UDP_LEN_OFFSET 4 /* UDP length offset */ 45 #define UDP_CHKSUM_OFFSET 6 /* UDP body checksum offset */ 46 47 #define UDP_HDR_LEN 8 /* UDP header length */ 48 #define UDP_PORT_LEN 2 /* UDP port length */ 49 50 /* These fields are stored in network order */ 51 BWL_PRE_PACKED_STRUCT struct bcmudp_hdr 52 { 53 uint16 src_port; /* Source Port Address */ 54 uint16 dst_port; /* Destination Port Address */ 55 uint16 len; /* Number of bytes in datagram including header */ 56 uint16 chksum; /* entire datagram checksum with pseudoheader */ 57 } BWL_POST_PACKED_STRUCT; 58 59 /* This marks the end of a packed structure section. */ 60 #include <packed_section_end.h> 61 62 #endif /* #ifndef _bcmudp_h_ */ 63