104 lines
4.3 KiB
C
104 lines
4.3 KiB
C
/*
|
|
* Fundamental constants relating to ARP Protocol
|
|
*
|
|
* Copyright (C) 2024 Synaptics Incorporated. All rights reserved.
|
|
*
|
|
* This software is licensed to you under the terms of the
|
|
* GNU General Public License version 2 (the "GPL") with Broadcom special exception.
|
|
*
|
|
* INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIDED "AS-IS," AND SYNAPTICS
|
|
* EXPRESSLY DISCLAIMS ALL EXPRESS AND IMPLIED WARRANTIES, INCLUDING ANY
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
|
|
* AND ANY WARRANTIES OF NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHTS.
|
|
* IN NO EVENT SHALL SYNAPTICS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION
|
|
* WITH THE USE OF THE INFORMATION CONTAINED IN THIS DOCUMENT, HOWEVER CAUSED
|
|
* AND BASED ON ANY THEORY OF LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* NEGLIGENCE OR OTHER TORTIOUS ACTION, AND EVEN IF SYNAPTICS WAS ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGE. IF A TRIBUNAL OF COMPETENT JURISDICTION
|
|
* DOES NOT PERMIT THE DISCLAIMER OF DIRECT DAMAGES OR ANY OTHER DAMAGES,
|
|
* SYNAPTICS' TOTAL CUMULATIVE LIABILITY TO ANY PARTY SHALL NOT
|
|
* EXCEED ONE HUNDRED U.S. DOLLARS
|
|
*
|
|
* Copyright (C) 2024, Broadcom.
|
|
*
|
|
* 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.
|
|
*
|
|
*
|
|
* <<Broadcom-WL-IPTag/Dual:>>
|
|
*/
|
|
|
|
#ifndef _bcmarp_h_
|
|
#define _bcmarp_h_
|
|
|
|
#ifndef _TYPEDEFS_H_
|
|
#include <typedefs.h>
|
|
#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_) */
|