1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Fundamental constants relating to 802.3 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 _802_3_h_ 25*4882a593Smuzhiyun #define _802_3_h_ 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun /* This marks the start of a packed structure section. */ 28*4882a593Smuzhiyun #include <packed_section_start.h> 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #define SNAP_HDR_LEN 6 /* 802.3 SNAP header length */ 31*4882a593Smuzhiyun #define DOT3_OUI_LEN 3 /* 802.3 oui length */ 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun BWL_PRE_PACKED_STRUCT struct dot3_mac_llc_snap_header { 34*4882a593Smuzhiyun uint8 ether_dhost[ETHER_ADDR_LEN]; /* dest mac */ 35*4882a593Smuzhiyun uint8 ether_shost[ETHER_ADDR_LEN]; /* src mac */ 36*4882a593Smuzhiyun uint16 length; /* frame length incl header */ 37*4882a593Smuzhiyun uint8 dsap; /* always 0xAA */ 38*4882a593Smuzhiyun uint8 ssap; /* always 0xAA */ 39*4882a593Smuzhiyun uint8 ctl; /* always 0x03 */ 40*4882a593Smuzhiyun uint8 oui[DOT3_OUI_LEN]; /* RFC1042: 0x00 0x00 0x00 41*4882a593Smuzhiyun * Bridge-Tunnel: 0x00 0x00 0xF8 42*4882a593Smuzhiyun */ 43*4882a593Smuzhiyun uint16 type; /* ethertype */ 44*4882a593Smuzhiyun } BWL_POST_PACKED_STRUCT; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun /* This marks the end of a packed structure section. */ 47*4882a593Smuzhiyun #include <packed_section_end.h> 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #endif /* #ifndef _802_3_h_ */ 50