Files
linguist/samples/C/ip4.h

51 lines
1.2 KiB
C

#pragma once
/* Copyright © 2011 Lukas Martini
*
* This file is part of Xelix.
*
* Xelix is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Xelix is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Xelix. If not, see <http://www.gnu.org/licenses/>.
*/
#include <lib/generic.h>
#include <net/net.h>
#define IP4_TOS_ICMP 0
typedef uint32_t ip4_addr_t;
typedef struct {
unsigned int hl:4; /* both fields are 4 bits */
unsigned int version:4;
uint8_t tos;
uint16_t len;
uint16_t id;
uint16_t off;
uint8_t ttl;
uint8_t p;
uint16_t checksum;
ip4_addr_t src;
ip4_addr_t dst;
} ip4_header_t;
typedef struct {
uint8_t type;
uint8_t code;
uint16_t checksum;
uint16_t id;
uint16_t sequence;
} ip4_icmp_header_t;
void ip4_receive(net_device_t* origin, net_l2proto_t proto, size_t size, void* raw);