1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Fundamental constants relating to UDP Protocol 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2020, Broadcom. 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Unless you and Broadcom execute a separate written software license 7*4882a593Smuzhiyun * agreement governing use of this software, this software is licensed to you 8*4882a593Smuzhiyun * under the terms of the GNU General Public License version 2 (the "GPL"), 9*4882a593Smuzhiyun * available at http://www.broadcom.com/licenses/GPLv2.php, with the 10*4882a593Smuzhiyun * following added to such license: 11*4882a593Smuzhiyun * 12*4882a593Smuzhiyun * As a special exception, the copyright holders of this software give you 13*4882a593Smuzhiyun * permission to link this software with independent modules, and to copy and 14*4882a593Smuzhiyun * distribute the resulting executable under terms of your choice, provided that 15*4882a593Smuzhiyun * you also meet, for each linked independent module, the terms and conditions of 16*4882a593Smuzhiyun * the license of that module. An independent module is a module which is not 17*4882a593Smuzhiyun * derived from this software. The special exception does not apply to any 18*4882a593Smuzhiyun * modifications of the software. 19*4882a593Smuzhiyun * 20*4882a593Smuzhiyun * 21*4882a593Smuzhiyun * <<Broadcom-WL-IPTag/Dual:>> 22*4882a593Smuzhiyun */ 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #ifndef _bcmudp_h_ 25*4882a593Smuzhiyun #define _bcmudp_h_ 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun #ifndef _TYPEDEFS_H_ 28*4882a593Smuzhiyun #include <typedefs.h> 29*4882a593Smuzhiyun #endif 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun /* This marks the start of a packed structure section. */ 32*4882a593Smuzhiyun #include <packed_section_start.h> 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun /* UDP header */ 35*4882a593Smuzhiyun #define UDP_DEST_PORT_OFFSET 2 /* UDP dest port offset */ 36*4882a593Smuzhiyun #define UDP_LEN_OFFSET 4 /* UDP length offset */ 37*4882a593Smuzhiyun #define UDP_CHKSUM_OFFSET 6 /* UDP body checksum offset */ 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun #define UDP_HDR_LEN 8 /* UDP header length */ 40*4882a593Smuzhiyun #define UDP_PORT_LEN 2 /* UDP port length */ 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun /* These fields are stored in network order */ 43*4882a593Smuzhiyun BWL_PRE_PACKED_STRUCT struct bcmudp_hdr 44*4882a593Smuzhiyun { 45*4882a593Smuzhiyun uint16 src_port; /* Source Port Address */ 46*4882a593Smuzhiyun uint16 dst_port; /* Destination Port Address */ 47*4882a593Smuzhiyun uint16 len; /* Number of bytes in datagram including header */ 48*4882a593Smuzhiyun uint16 chksum; /* entire datagram checksum with pseudoheader */ 49*4882a593Smuzhiyun } BWL_POST_PACKED_STRUCT; 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun /* This marks the end of a packed structure section. */ 52*4882a593Smuzhiyun #include <packed_section_end.h> 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun #endif /* #ifndef _bcmudp_h_ */ 55