6e36a6f14c
adapts to third-party code compilation. in the process of porting ConnMan, we encounter some situations where the structure is not defined, or the returned data types do not match the expectations. Refer to the common implementation of other systems and add relevant definitions. Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
139 lines
5.3 KiB
C
139 lines
5.3 KiB
C
/****************************************************************************
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* include/nuttx/net/ethernet.h
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* Macros and definitions for the Ethernet link layer.
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*
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* Copyright (C) 2007, 2009-2012, 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Derived from uIP with has a similar BSD-styple license:
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*
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* Author: Adam Dunkels <adam@dunkels.com>
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* Copyright (c) 2001-2003, Adam Dunkels.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_NET_ETHERNET_H
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#define __INCLUDE_NUTTX_NET_ETHERNET_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <net/ethernet.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Recognized values of the type bytes in the Ethernet header */
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#define ETHTYPE_ARP ETHERTYPE_ARP /* Address resolution protocol */
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#define ETHTYPE_IP ETHERTYPE_IP /* IP protocol */
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#define ETHTYPE_IP6 ETHERTYPE_IPV6 /* IP protocol version 6 */
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/* Tag protocol identifier (TPID) of 0x8100 identifies the frame as an
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* IEEE 802.1Q-tagged frame. This field is located at the same position as
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* the Ethernet type field in untagged frames and is thus used to
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* distinguish the frame from untagged frames.
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*/
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#define TPID_8021QVLAN ETHERTYPE_VLAN
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/* These are some of the types associated with QVLAN tagged
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* Ethernet packets.
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*/
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#define ETHTYPE_AVBTP 0x22f0 /* Audio/Video bridging type */
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/* Size of the Ethernet headers */
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#define ETH_HDRLEN 14 /* Header size: 2*6 + 2 */
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#define ETH_8021Q_HDRLEN 18 /* Header size: 2*6 + 4 + 2 */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* The Ethernet header -- 14 bytes. The first two fields are type 'struct
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* ether_addr but are represented as a simple byte array here because
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* some compilers refuse to pack 6 byte structures.
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*/
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struct eth_hdr_s
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{
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uint8_t dest[6]; /* Ethernet destination address (6 bytes) */
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uint8_t src[6]; /* Ethernet source address (6 bytes) */
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uint16_t type; /* Type code (2 bytes) */
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};
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/* IEEE 802.1Q adds a 32-bit field between the source MAC address and the
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* type fields of the original Ethernet header. Two bytes are used for the
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* tag protocol identifier (TPID), the other two bytes for tag control
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* information TCI). The TCI field is further divided into PCP, DEI, and
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* VID.
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*/
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struct eth_8021qhdr_s
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{
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uint8_t dest[6]; /* Ethernet destination address (6 bytes) */
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uint8_t src[6]; /* Ethernet source address (6 bytes) */
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uint16_t tpid; /* TCI: Tag protocol identifier (2 bytes) */
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uint16_t tci; /* TCI: Tag control information: PCP, DEI, VID (2 bytes) */
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uint16_t type; /* Type code (2 bytes) */
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#if defined(CONFIG_NET_ICMPv6_AUTOCONF) || defined(CONFIG_NET_ICMPv6_ROUTER)
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EXTERN const struct ether_addr g_ipv6_ethallnodes; /* All link local nodes */
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EXTERN const struct ether_addr g_ipv6_ethallrouters; /* All link local routers */
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_NUTTX_NET_ETHERNET_H */
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