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URL https://opencores.org/ocsvn/amber/amber/trunk

Subversion Repositories amber

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    /amber/trunk/sw
    from Rev 61 to Rev 62
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  •

Rev 61 → Rev 62

/tools/amber-pkt2mem.c
0,0 → 1,200
/*----------------------------------------------------------------
// //
// amber-bin2mem.c //
// //
// This file is part of the Amber project //
// http://www.opencores.org/project,amber //
// //
// Description //
// Read in a binary file from tcpdump and write it out in //
// in Verilog readmem format. //
// //
// Author(s): //
// - Conor Santifort, csantifort.amber@gmail.com //
// //
//////////////////////////////////////////////////////////////////
// //
// Copyright (C) 2010 Authors and OPENCORES.ORG //
// //
// This source file may be used and distributed without //
// restriction provided that this copyright statement is not //
// removed from the file and that any derivative work contains //
// the original copyright notice and the associated disclaimer. //
// //
// This source file is free software; you can redistribute it //
// and/or modify it under the terms of the GNU Lesser General //
// Public License as published by the Free Software Foundation; //
// either version 2.1 of the License, or (at your option) any //
// later version. //
// //
// This source 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 Lesser General Public License for more //
// details. //
// //
// You should have received a copy of the GNU Lesser General //
// Public License along with this source; if not, download it //
// from http://www.opencores.org/lgpl.shtml //
// //
----------------------------------------------------------------*/
 
 
#include <stdio.h>
#include <stdlib.h>
#include "../boot-loader/boot-loader.h"
 
/* Function prototypes */
int fsize(FILE *f);
int conv_hstring(char*, unsigned int*);
unsigned int buf_uint (unsigned char *buf);
 
 
int main(int argc,char *argv[])
{
FILE *infile;
char filename_mem[80], filename_nopath[80];
unsigned char *buf;
FILE *file_mem;
int infile_size, buf_size, i, j;
int ret;
int buf_pos;
unsigned int incl_len;
unsigned int orig_len;
int mem_pos = 0;
if (argc<2){
fprintf(stderr, "ERROR: no input file specified. Quitting\n");
exit(1);
}
 
 
infile=fopen(argv[1],"rb");
if(infile==NULL) {
fprintf(stderr, "ERROR: Can't open %s. Quitting\n", argv[1]);
exit(1);
}
infile_size = fsize(infile);
buf=(unsigned char*)malloc(infile_size);
buf_size=fread(buf,1,infile_size,infile);
fclose(infile);
 
if ( buf_size != infile_size ) {
fprintf(stderr, "%s ERROR: Input %s file length is %d bytes long, buffer read buf_size %d\n",
argv[0], argv[1], infile_size, buf_size);
exit(1);
}
if ( infile_size > 0x1000000 ) {
fprintf(stderr, "%s WARNING: Input %s file length is %d bytes long, greater than boot-loader can handle \n",
argv[0], argv[1], infile_size);
}
/* Start of file */
buf_pos = 6*4;
/* Main loop. once per packet */
while (buf_pos < infile_size) {
buf_pos=buf_pos+8;
incl_len = buf_uint(&buf[buf_pos]); buf_pos+=4;
orig_len = buf_uint(&buf[buf_pos]); buf_pos+=4;
/* error check included packet length */
if (incl_len != orig_len) {
fprintf(stderr, "Warning: the full packet was not captured in the tcpdump file\n");
fprintf(stderr, "incl_len %d != orig_len %d\n", incl_len, orig_len);
//goto error_return;
}
 
/* error check max packet length */
if (orig_len > 255) {
fprintf(stderr, "Error: the packet is too long. Max length is 255 bytes\n");
fprintf(stderr, "orig_len %d\n", orig_len);
goto error_return;
}
 
/* check if full packet is contained in file */
if (buf_pos + incl_len > infile_size) {
fprintf(stderr, "Error: end of current packet is after the end of the buffer\n");
goto error_return;
}
printf("// incl_len %d, orig_len %d\n", incl_len, orig_len);
printf("// ip-sa %d.%d.%d.%d, ip-da %d.%d.%d.%d, protocol %d\n",
buf[buf_pos+26], buf[buf_pos+27], buf[buf_pos+28], buf[buf_pos+29],
buf[buf_pos+30], buf[buf_pos+31], buf[buf_pos+32], buf[buf_pos+33],
buf[buf_pos+23]
);
/* First byte gives the packet length */
printf("@%04x %02x\n", mem_pos++, orig_len);
for (i=buf_pos;i<buf_pos+incl_len;i++,mem_pos++) {
printf("@%04x %02x\n", mem_pos, buf[i]);
}
/* pad out any missing bytes */
if (orig_len > incl_len) {
for (i=incl_len;i<orig_len;i++,mem_pos++) {
printf("@%04x 00\n", mem_pos);
}
}
/* advance to the start of the next entry */
buf_pos += incl_len;
}
free(buf);
return 0;
 
 
error_return:
free(buf);
return 1;
}
 
 
 
unsigned int buf_uint (unsigned char *buf)
{
return buf[3]<<24 | buf[2]<<16 | buf[1]<<8 | buf[0];
}
 
 
/* Return the buf_size of a file in bytes */
int fsize( FILE *f )
{
int end;
 
/* Set current position at end of file */
fseek( f, 0, SEEK_END );
 
/* File buf_size in bytes */
end = ftell( f );
 
/* Set current position at start of file */
fseek( f, 0, SEEK_SET );
 
return end;
}
 
 
int conv_hstring ( char *string, unsigned int * num)
{
int pos = 0;
*num = 0;
 
while (((string[pos] >= '0' && string[pos] <= '9') ||
(string[pos] >= 'a' && string[pos] <= 'f')) && pos < 9) {
if (string[pos] >= '0' && string[pos] <= '9')
*num = (*num << 4) + ( string[pos++] - '0' );
else
*num = (*num << 4) + ( string[pos++] - 'a' ) + 10;
}
return pos;
}
 

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