Diff: ip.h

Revision:

0:cf255d2aa92f

Child:

2:98b11b7dd7b2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ip.h	Sun Feb 13 01:18:38 2011 +0000
@@ -0,0 +1,79 @@
+/*
+* Copyright or © or Copr. 2010, Thomas SOETE
+* 
+* Author e-mail: thomas@soete.org
+* Library website : http://mbed.org/users/Alkorin/libraries/SimpleLib/
+* 
+* This software is governed by the CeCILL license under French law and
+* abiding by the rules of distribution of free software.  You can  use, 
+* modify and/ or redistribute the software under the terms of the CeCILL
+* license as circulated by CEA, CNRS and INRIA at the following URL
+* "http://www.cecill.info". 
+* 
+* As a counterpart to the access to the source code and  rights to copy,
+* modify and redistribute granted by the license, users are provided only
+* with a limited warranty  and the software's author,  the holder of the
+* economic rights,  and the successive licensors  have only  limited
+* liability. 
+* 
+* In this respect, the user's attention is drawn to the risks associated
+* with loading,  using,  modifying and/or developing or reproducing the
+* software by the user in light of its specific status of free software,
+* that may mean  that it is complicated to manipulate,  and  that  also
+* therefore means  that it is reserved for developers  and  experienced
+* professionals having in-depth computer knowledge. Users are therefore
+* encouraged to load and test the software's suitability as regards their
+* requirements in conditions enabling the security of their systems and/or 
+* data to be ensured and,  more generally, to use and operate it in the 
+* same conditions as regards security. 
+* 
+* The fact that you are presently reading this means that you have had
+* knowledge of the CeCILL license and that you accept its terms.
+*/
+
+#ifndef __SIMPLELIB_IP_H__
+#define __SIMPLELIB_IP_H__
+
+#include "ip.h"
+
+typedef __packed struct {
+    unsigned char version:4;
+    unsigned char length:4;
+    unsigned char services;
+    uint16_t total_length;
+    uint16_t identification;
+    unsigned int flags:3;
+    unsigned fragment_offset:13;
+    unsigned char ttl;
+    unsigned char protocol;
+    uint16_t header_checksum;
+    unsigned char source[4];
+    unsigned char destination[4];
+} s_ip;
+
+typedef __packed struct {
+    ethernet_packet eth;
+    s_ip ip;
+} ipv4_packet;
+#define asIPV4(x) ((ipv4_packet*)(x))
+
+#define PROTO_ICMP  0x01
+
+typedef __packed struct {
+    ethernet_packet eth;
+    s_ip ip;
+    __packed struct {
+        unsigned char type;
+        unsigned char code;
+        uint16_t checksum;
+        uint16_t identifier;
+        uint16_t sequence_number;
+        unsigned char data[];
+    } icmp;
+} icmp_packet;
+#define asICMP(x) ((icmp_packet*)(x))
+
+#define ICMP_REQUEST 0x08
+#define ICMP_REPLY   0x00
+
+#endif
\ No newline at end of file