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/* Copyright (C) 2000-2006 Boris Wesslowski */
/* $Id: win_xp.c,v 1.7 2006/03/08 19:36:03 bw Exp $ */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include "main.h"
#include "utils.h"
extern struct options opt;
unsigned char win_xp(char *input, int linenum)
{
char *sinputs=input, *sinpute;
int retval, year, day, month, hour, minute, second;
struct tm *t;
/* Read file header */
if(*input=='#' || !isdigit((int)*input))
return PARSE_NO_HIT;
init_line();
xstrncpy(opt.line->hostname, "-", SHORTLEN);
xstrncpy(opt.line->chainlabel, "-", SHORTLEN);
xstrncpy(opt.line->interface, "-", SHORTLEN);
/* Read time */
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
retval = sscanf(sinputs, "%4d-%2d-%2d", &year, &month, &day);
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
retval = sscanf(sinputs, "%2d:%2d:%2d", &hour, &minute, &second);
t = xmalloc(sizeof(struct tm));
t->tm_year = year-1900;
t->tm_mon = month-1;
t->tm_mday = day;
t->tm_hour = hour;
t->tm_min = minute;
t->tm_sec = second;
t->tm_isdst = -1;
opt.line->time = mktime(t);
/* Read action */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (*sinputs == '-'){
xstrncpy(opt.line->branchname, "-", SHORTLEN);
} else {
xstrncpy(opt.line->branchname, sinputs, SHORTLEN);
}
/* Read protocol */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if(strncmp(sinputs, "TCP", 3) == 0) opt.line->protocol = 6;
else if(strncmp(sinputs, "UDP", 3) == 0) opt.line->protocol = 17;
else if(strncmp(sinputs, "ICMP", 4) == 0) opt.line->protocol = 1;
else {
if(opt.verbose)
fprintf(stderr, "win_xp parse error while reading proto in line %d, ignoring.\n", linenum);
return PARSE_WRONG_FORMAT;
}
/* Read src ip */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (*sinputs != '-'){
if(convert_ip(sinputs, &opt.line->shost) == IN_ADDR_ERROR) return PARSE_NO_HIT;
} else {
if(opt.verbose)
fprintf(stderr, "win_xp parse error while reading shost in line %d, ignoring.\n", linenum);
return PARSE_WRONG_FORMAT;
}
/* Read dst ip */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (*sinputs != '-'){
if(convert_ip(sinputs, &opt.line->dhost) == IN_ADDR_ERROR) return PARSE_NO_HIT;
} else {
if(opt.verbose)
fprintf(stderr, "win_xp parse error while reading dhost in line %d, ignoring.\n", linenum);
return PARSE_WRONG_FORMAT;
}
/* Read src port */
sinpute=sinpute+1;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (isdigit((int)*sinputs)){
opt.line->sport=atoi(sinputs);
} else if (*sinputs == '-' && (opt.line->protocol == 6 || opt.line->protocol == 17)) {
if(opt.verbose)
fprintf(stderr, "win_xp parse error while reading sport in line %d, ignoring.\n", linenum);
return PARSE_WRONG_FORMAT;
}
/* Read dst port */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (isdigit((int)*sinputs)){
opt.line->dport=atoi(sinputs);
} else if (*sinputs == '-' && (opt.line->protocol == 6 || opt.line->protocol == 17)) {
if(opt.verbose)
fprintf(stderr, "win_xp parse error while reading dport in line %d, ignoring.\n", linenum);
return PARSE_WRONG_FORMAT;
}
/* Read size */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (isdigit((int)*sinputs)){
opt.line->datalen=atoi(sinputs);
} else {
opt.line->datalen=0;
}
/* Read tcp flags */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
while (*sinputs != '\0') {
switch (*sinputs) {
case '-':
opt.line->flags = 0;
break;
case 'S':
opt.line->flags = opt.line->flags | TCP_SYN;
break;
case 'A':
opt.line->flags = opt.line->flags | TCP_ACK;
break;
case 'F':
opt.line->flags = opt.line->flags | TCP_FIN;
break;
case 'P':
opt.line->flags = opt.line->flags | TCP_PSH;
break;
default:
if(opt.verbose)
fprintf(stderr, "win_xp parse error in line %d, ignoring.\n", linenum);
return PARSE_WRONG_FORMAT;
}
sinputs++;
}
/* Read tcpsyn tcpack and tcpwin, not used */
sinpute++;
sinpute = strchr(sinpute, ' ');
sinpute++;
sinpute = strchr(sinpute, ' ');
sinpute++;
sinpute = strchr(sinpute, ' ');
/* Read icmp type */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (isdigit((int)*sinputs)){
opt.line->sport=atoi(sinputs);
}
/* Read icmp code */
sinpute++;
sinputs=sinpute;
sinpute = strchr(sinputs, ' ');
if (sinpute != NULL)
*sinpute = '\0';
if (isdigit((int)*sinputs)){
opt.line->dport=atoi(sinputs);
}
/* Ignore info at end of line */
opt.line->count = 1;
return PARSE_OK;
}
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