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- /*
- * Fundamental constants relating to ARP Protocol
- *
- * Portions of this code are copyright (c) 2020 Cypress Semiconductor Corporation
- *
- * Copyright (C) 1999-2020, Broadcom Corporation
- *
- * Unless you and Broadcom execute a separate written software license
- * agreement governing use of this software, this software is licensed to you
- * under the terms of the GNU General Public License version 2 (the "GPL"),
- * available at http://www.broadcom.com/licenses/GPLv2.php, with the
- * following added to such license:
- *
- * As a special exception, the copyright holders of this software give you
- * permission to link this software with independent modules, and to copy and
- * distribute the resulting executable under terms of your choice, provided that
- * you also meet, for each linked independent module, the terms and conditions of
- * the license of that module. An independent module is a module which is not
- * derived from this software. The special exception does not apply to any
- * modifications of the software.
- *
- * Notwithstanding the above, under no circumstances may you combine this
- * software in any way with any other Broadcom software provided under a license
- * other than the GPL, without Broadcom's express prior written consent.
- *
- *
- * <<Broadcom-WL-IPTag/Open:>>
- *
- * $Id: bcmarp.h 681867 2018-01-03 12:34:41Z $
- */
- #ifndef _bcmarp_h_
- #define _bcmarp_h_
- #ifndef _TYPEDEFS_H_
- #include <typedefs.h>
- #endif // endif
- #include <bcmip.h>
- /* This marks the start of a packed structure section. */
- #include <packed_section_start.h>
- #define ARP_OPC_OFFSET 6 /* option code offset */
- #define ARP_SRC_ETH_OFFSET 8 /* src h/w address offset */
- #define ARP_SRC_IP_OFFSET 14 /* src IP address offset */
- #define ARP_TGT_ETH_OFFSET 18 /* target h/w address offset */
- #define ARP_TGT_IP_OFFSET 24 /* target IP address offset */
- #define ARP_OPC_REQUEST 1 /* ARP request */
- #define ARP_OPC_REPLY 2 /* ARP reply */
- #define ARP_DATA_LEN 28 /* ARP data length */
- #define HTYPE_ETHERNET 1 /* htype for ethernet */
- BWL_PRE_PACKED_STRUCT struct bcmarp {
- uint16 htype; /* Header type (1 = ethernet) */
- uint16 ptype; /* Protocol type (0x800 = IP) */
- uint8 hlen; /* Hardware address length (Eth = 6) */
- uint8 plen; /* Protocol address length (IP = 4) */
- uint16 oper; /* ARP_OPC_... */
- uint8 src_eth[ETHER_ADDR_LEN]; /* Source hardware address */
- uint8 src_ip[IPV4_ADDR_LEN]; /* Source protocol address (not aligned) */
- uint8 dst_eth[ETHER_ADDR_LEN]; /* Destination hardware address */
- uint8 dst_ip[IPV4_ADDR_LEN]; /* Destination protocol address */
- } BWL_POST_PACKED_STRUCT;
- /* Ethernet header + Arp message */
- BWL_PRE_PACKED_STRUCT struct bcmetharp {
- struct ether_header eh;
- struct bcmarp arp;
- } BWL_POST_PACKED_STRUCT;
- /* IPv6 Neighbor Advertisement */
- #define NEIGHBOR_ADVERTISE_SRC_IPV6_OFFSET 8 /* src IPv6 address offset */
- #define NEIGHBOR_ADVERTISE_TYPE_OFFSET 40 /* type offset */
- #define NEIGHBOR_ADVERTISE_CHECKSUM_OFFSET 42 /* check sum offset */
- #define NEIGHBOR_ADVERTISE_FLAGS_OFFSET 44 /* R,S and O flags offset */
- #define NEIGHBOR_ADVERTISE_TGT_IPV6_OFFSET 48 /* target IPv6 address offset */
- #define NEIGHBOR_ADVERTISE_OPTION_OFFSET 64 /* options offset */
- #define NEIGHBOR_ADVERTISE_TYPE 136
- #define NEIGHBOR_SOLICITATION_TYPE 135
- #define OPT_TYPE_SRC_LINK_ADDR 1
- #define OPT_TYPE_TGT_LINK_ADDR 2
- #define NEIGHBOR_ADVERTISE_DATA_LEN 72 /* neighbor advertisement data length */
- #define NEIGHBOR_ADVERTISE_FLAGS_VALUE 0x60 /* R=0, S=1 and O=1 */
- /* This marks the end of a packed structure section. */
- #include <packed_section_end.h>
- #endif /* !defined(_bcmarp_h_) */
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