1 /* 2 * Copyright (c) 2012 The Linux Foundation. All rights reserved. 3 * 4 * Previously licensed under the ISC license by Qualcomm Atheros, Inc. 5 * 6 * 7 * Permission to use, copy, modify, and/or distribute this software for 8 * any purpose with or without fee is hereby granted, provided that the 9 * above copyright notice and this permission notice appear in all 10 * copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 13 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 14 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 15 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 16 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 17 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 18 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 19 * PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 /* 23 * This file was originally distributed by Qualcomm Atheros, Inc. 24 * under proprietary terms before Copyright ownership was assigned 25 * to the Linux Foundation. 26 */ 27 28 #ifndef _IPV4__H_ 29 #define _IPV4__H_ 30 31 #if defined(ATH_TARGET) 32 #include <osapi.h> /* A_UINT8 */ 33 #else 34 #include <a_types.h> /* A_UINT8 */ 35 #endif 36 37 #define IPV4_ADDR_LEN 4 /* bytes */ 38 struct ipv4_hdr_t { 39 A_UINT8 ver_hdrlen; /* version and hdr length */ 40 A_UINT8 tos; /* type of service */ 41 A_UINT8 len[2]; /* total length */ 42 A_UINT8 id[2]; 43 A_UINT8 flags_fragoff[2]; /* flags and fragment offset field */ 44 A_UINT8 ttl; /* time to live */ 45 A_UINT8 protocol; 46 A_UINT8 hdr_checksum[2]; 47 A_UINT8 src_addr[IPV4_ADDR_LEN]; 48 A_UINT8 dst_addr[IPV4_ADDR_LEN]; 49 }; 50 51 #define IPV4_HDR_LEN (sizeof(struct ipv4_hdr_t)) 52 #define IPV4_HDR_OFFSET_PROTOCOL (offsetof(struct ipv4_hdr_t, protocol)) 53 #define IPV4_HDR_OFFSET_DST_ADDR (offsetof(struct ipv4_hdr_t, dst_addr[0])) 54 55 #endif /* _IPV4__H_ */ 56