/*
* Copyright (c) 2021 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup ethip
* @{
*/
/**
* @file
* @brief
*/
#ifndef ETHIP_H_
#define ETHIP_H_
#include <adt/list.h>
#include <async.h>
#include <inet/addr.h>
#include <inet/eth_addr.h>
#include <inet/iplink_srv.h>
#include <loc.h>
#include <stddef.h>
#include <stdint.h>
typedef struct {
link_t link;
inet_addr_t addr;
} ethip_link_addr_t;
typedef struct ethip_nic {
link_t link;
service_id_t svc_id;
char *svc_name;
async_sess_t *sess;
iplink_srv_t iplink;
service_id_t iplink_sid;
/** MAC address */
eth_addr_t mac_addr;
/**
* List of IP addresses configured on this link
* (of the type ethip_link_addr_t)
*/
list_t addr_list;
} ethip_nic_t;
/** Ethernet frame */
typedef struct {
/** Destination Address */
eth_addr_t dest;
/** Source Address */
eth_addr_t src;
/** Ethertype or Length */
uint16_t etype_len;
/** Payload */
void *data;
/** Payload size */
size_t size;
} eth_frame_t;
/** ARP opcode */
typedef enum {
/** Request */
aop_request,
/** Reply */
aop_reply
} arp_opcode_t;
/** ARP packet (for 48-bit MAC addresses and IPv4)
*
* Internal representation
*/
typedef struct {
/** Opcode */
arp_opcode_t opcode;
/** Sender hardware address */
eth_addr_t sender_hw_addr;
/** Sender protocol address */
addr32_t sender_proto_addr;
/** Target hardware address */
eth_addr_t target_hw_addr;
/** Target protocol address */
addr32_t target_proto_addr;
} arp_eth_packet_t;
/** Address translation table element */
typedef struct {
link_t atrans_list;
addr32_t ip_addr;
eth_addr_t mac_addr;
} ethip_atrans_t;
extern errno_t ethip_iplink_init(ethip_nic_t *);
extern errno_t ethip_received(iplink_srv_t *, void *, size_t);
#endif
/** @}
*/