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/*
NAST
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "include/nast.h"
#define Rst 0
#define Fin 1
int conn_len(u_long ip_src,u_long ip_dst,u_short s_port,u_short d_port, double len);
struct statistics
{
unsigned long s_ip;
unsigned long d_ip;
unsigned short s_port;
unsigned short d_port;
double tot_len;
int lin;
}
stat_conn[100];
void bytecounting ();
void n_bytecounting (); /*with graphic*/
int run_bc (char *dev, char *filter);
void ptimecounting();
int nconns = 0;
int liness = 13;
unsigned long ptime; /* parzial time of execution, in seconds */
double partial; /* partial traffic */
time_t begin; /* save begin time for calculate avarage rate */
int run_bc (char *dev, char *filter)
{
char ebuf[PCAP_ERRBUF_SIZE];
if (!dev)
{
w_error(1, "Device is null!\n");
}
#ifdef HAVE_LIBNCURSES
if (graph)
init_scr();
#endif
if (demonize)
n_print ("winfo",1,1,0,"Is very useless demonize me in finding gateway! Omit");
/* 1 to avoid inf */
ptime=1;
begin = time(NULL);
/* open pcap sniffer */
if ((pcap_lookupnet(dev, &netp, &maskp, ebuf))==-1)
{
w_error(1,"pcap_lookupnet error: %s\n\n", ebuf);
}
if ((descr = pcap_open_live(dev, BUFSIZ, PROMISC, 10, ebuf))==NULL)
{
w_error(1, "pcap_open_live error: %s\n\n", ebuf);
}
if ((offset=(device(dev,descr)))==-1) return -1;
if (strcmp (filter, "any") && strcmp (filter, "")) /* filter!="any" */
{
if ((pcap_compile (descr, &fp, filter, 0, netp))==-1)
{
w_error(0, "pcap_compile error\n\n");
return 0;
}
if ((pcap_setfilter (descr, &fp))==-1)
{
w_error(0, "pcap_setfilter error\n\n");
return 0;
}
n_print ("princ",0,1,0,"Filter \"%s\" has been applied to \"%s\"\n\n", filter, dev);
}
else
n_print ("princ",0,1,0,"Reading from \"%s\"\n\n", dev);
pthread_create (&pt[0], NULL, (void *) ptimecounting, NULL);
if(graph)
pthread_create (&pt[1], NULL, (void *) n_bytecounting, NULL);
else
bytecounting() ;
return 0;
}
void bytecounting ()
{
u_short icons;
double total;
double pspeed, tspeed; /* current and total speed */
unsigned long long number;
char *units[] =
{
"B/s", "kB/s", "MB/s", "GB/s"
};
char value[15];
int line;
total=0;
icons=0;
number=0;
partial=0;
line = 4;
n_print (NULL,0,0,0,"Packets\t\tTotal\t\tCurrent speed\t\tAvarage speed\n");
n_print (NULL,0,0,0,"---------------------------------------------------------------------\n");
while (1)
{
if ((packet = (u_char *) pcap_next (descr, &hdr))!=NULL)
{
total+=(double)(hdr.len)/1024; /* sum (Kbytes)*/
partial+=(double)(hdr.len)/1024;
++number;
/* clean line */
printf ("\r \r");
switch (icons)
{
case 0: printf ("\\ "); break;
case 1: printf ("| "); break;
case 2: printf ("/ "); break;
case 3: printf ("- "); break;
}
if (icons==3) icons=0;
else icons++;
sprintf (value, "%Ld", number);
printf (value);
/* calculate space */
if (strlen(value) < 6) printf ("\t\t");
else printf ("\t");
if (total < 1)
sprintf (value, "%.0fB", total*1024);
else if (total < 1024)
sprintf (value, "%.2fkB", total);
else if (total < 1024*1024)
sprintf (value, "%.2fMB", total/1024);
else
sprintf (value, "%.2fGB", total/1024*1024);
printf ("%s", value);
/* calculate space */
if (strlen (value) < 8) printf ("\t\t");
else printf ("\t");
pspeed = partial/ptime;
if (pspeed < 1)
sprintf (value, "%.0f%s", pspeed*1024, units[0]);
else if (pspeed < 1024)
sprintf (value, "%.2f%s", pspeed, units[1]);
else if (pspeed < 1024*1024)
sprintf (value, "%.2f%s", pspeed/1024, units[2]);
else
sprintf (value, "%.2f%s", pspeed/1024*1024, units[3]);
printf ("%s", value);
/* calculate space */
if (strlen (value) < 7) printf ("\t\t\t");
else if (strlen (value) < 13) printf ("\t\t");
else printf ("\t");
tspeed = total/((int)(time(NULL)-begin));
if (tspeed < 1)
sprintf (value, "%.0f%s", tspeed*1024, units[0]);
else if (tspeed < 1024)
sprintf (value, "%.2f%s", tspeed, units[1]);
else if (tspeed < 1024*1024)
sprintf (value, "%.2f%s", tspeed/1024, units[2]);
else
sprintf (value, "%.2f%s", tspeed/1024*1024, units[3]);
printf ("%s", value);
fflush (stdout);
}
}
pcap_close(descr);
}
void n_bytecounting()
{
u_short icons;
double total;
double tot;
double pspeed, tspeed; /* current and total speed */
unsigned long long number;
char *units[] =
{
"B/s", "kB/s", "MB/s", "GB/s"
};
char value[15];
int line, l;
int tcp,udp,icmp,igmp,arp,rarp,others;
struct libnet_ipv4_hdr *ip;
struct libnet_tcp_hdr *tcph;
u_int16_t type;
int k;
total=tot=0;
icons=0;
number=0;
partial=0;
line = 4;
l = 11;
tcp = udp = icmp = igmp = others = arp = rarp = k = 0;
for(k=0;k<100;k++)
{
memset(&stat_conn[k], 0, sizeof(stat_conn[k]));
}
n_print ("princ",1,1,0,"Packets\t\tTotal\t\tCurrent speed\t\tAvarage speed\n");
n_print ("princ",2,1,0,"-----------------------------------------------------------------------------\n");
n_print ("princ",6,1,0,"ARP RARP ICMP IGMP TCP UDP Others\n");
n_print ("princ",7,1,0,"-----------------------------------------------------------------------------\n");
n_print ("princ",11,1,0,"From Port To Port Total traffic");
n_print("princ",12,1,0,"-----------------------------------------------------------------------------\n");
while(bc_glob!=0)
{
if ((packet = (u_char *) pcap_next (descr, &hdr))!=NULL)
{
total+=(double)(hdr.len)/1024; /* sum (Kbytes)*/
partial+=(double)(hdr.len)/1024;
++number;
tot=(double)(hdr.len)/1024;
type = handle_ethernet (packet);
ip = (struct libnet_ipv4_hdr *) (packet+offset);
tcph = (struct libnet_tcp_hdr *) (packet + LIBNET_IPV4_H + offset);
switch(ip->ip_p)
{
case IPPROTO_TCP:
++tcp;
switch(tcph->th_flags)
{
case TH_SYN:
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
case TH_ACK:
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
case TH_RST:
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
case (TH_SYN|TH_ACK):
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
case (TH_ACK|TH_PUSH):
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
case (TH_URG|TH_ACK):
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
case (TH_FIN|TH_ACK):
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
case (TH_RST|TH_ACK):
conn_len(ip->ip_src.s_addr,ip->ip_dst.s_addr,htons(tcph->th_sport),htons(tcph->th_dport),tot);
break;
default:
break;
}
break;
case IPPROTO_UDP:
++udp;
break;
case IPPROTO_ICMP:
++icmp;
break;
case IPPROTO_IGMP:
++igmp;
break;
default:
if (type==ETHERTYPE_ARP)
++arp;
else if (type==ETHERTYPE_REVARP)
++rarp;
else ++others;
break;
}
n_print ("princ",8,1,0," ");
n_print ("princ",8,3,0,"%d",arp);
n_print ("princ",8,15,0,"%d",rarp);
n_print ("princ",8,27,0,"%d",icmp);
n_print ("princ",8,39,0,"%d",igmp);
n_print ("princ",8,51,0,"%d",tcp);
n_print ("princ",8,63,0,"%d",udp);
n_print ("princ",8,75,0,"%d",others);
switch (icons)
{
case 0: n_print ("princ",3,1,0,"\\ "); break;
case 1: n_print ("princ",3,1,0,"| "); break;
case 2: n_print ("princ",3,1,0,"/ "); break;
case 3: n_print ("princ",3,1,0,"- "); break;
}
if (icons==3) icons=0;
else icons++;
n_print ("princ",3,1,0," ");
sprintf (value, "%Ld", number);
n_print ("princ",3,3,0,"%s",value);
if (total < 1)
sprintf (value, "%.0fB", total*1024);
else if (total < 1024)
sprintf (value, "%.2fkB", total);
else if (total < 1024*1024)
sprintf (value, "%.2fMB", total/1024);
else
sprintf (value, "%.2fGB", total/1024*1024);
n_print ("princ",3,24,0,"%s",value);
pspeed = partial/ptime;
if (pspeed < 1)
sprintf (value, "%.0f%s", pspeed*1024, units[0]);
else if (pspeed < 1024)
sprintf (value, "%.2f%s", pspeed, units[1]);
else if (pspeed < 1024*1024)
sprintf (value, "%.2f%s", pspeed/1024, units[2]);
else
sprintf (value, "%.2f%s", pspeed/1024*1024, units[3]);
n_print ("princ",3,40,0,"%s",value);
tspeed = total/((int)(time(NULL)-begin));
if (tspeed < 1)
sprintf (value, "%.0f%s", tspeed*1024, units[0]);
else if (tspeed < 1024)
sprintf (value, "%.2f%s", tspeed, units[1]);
else if (tspeed < 1024*1024)
sprintf (value, "%.2f%s", tspeed/1024, units[2]);
else
sprintf (value, "%.2f%s", tspeed/1024*1024, units[3]);
n_print ("princ",3,64,0,"%s",value);
}
}
pcap_close(descr);
}
int conn_len(u_long ip_src,u_long ip_dst,u_short s_port,u_short d_port, double len)
{
int i;
char value[15];
for(i=0;i<100;i++)
if((ip_src==stat_conn[i].s_ip && ip_dst==stat_conn[i].d_ip && s_port==stat_conn[i].s_port && d_port==stat_conn[i].d_port) || (ip_src==stat_conn[i].d_ip && ip_dst==stat_conn[i].s_ip && s_port==stat_conn[i].d_port && d_port==stat_conn[i].s_port))
{
stat_conn[i].tot_len += len;
if (stat_conn[i].tot_len < 1)
sprintf (value, "%.0fB", stat_conn[i].tot_len*1024);
else if (stat_conn[i].tot_len < 1024)
sprintf (value, "%.2fkB", stat_conn[i].tot_len);
else if (stat_conn[i].tot_len < 1024*1024)
sprintf (value, "%.2fMB", stat_conn[i].tot_len/1024);
else
sprintf (value, "%.2fGB", stat_conn[i].tot_len/1024*1024);
n_print("princ",stat_conn[i].lin,60,0,"%s",value);
return(0); /*ce l'ho gi�(duplicato)*/
}
for(i=0;i<100;i++)/*cerco spazio vuoto*/
{
if(stat_conn[i].s_ip)continue;
else
{
stat_conn[i].s_ip = ip_src;
stat_conn[i].d_ip = ip_dst;
stat_conn[i].s_port = s_port;
stat_conn[i].d_port = d_port;
stat_conn[i].tot_len = len;
n_print("princ",liness,1,0,"%s",libnet_addr2name4(stat_conn[i].s_ip, LIBNET_DONT_RESOLVE));
n_print("princ",liness,18,0,"%d",stat_conn[i].s_port);
n_print("princ",liness,29,0,"%s",libnet_addr2name4(stat_conn[i].d_ip, LIBNET_DONT_RESOLVE));
n_print("princ",liness,49,0,"%d",stat_conn[i].d_port);
if (stat_conn[i].tot_len < 1)
sprintf (value, "%.0fB", stat_conn[i].tot_len*1024);
else if (stat_conn[i].tot_len < 1024)
sprintf (value, "%.2fkB", stat_conn[i].tot_len);
else if (stat_conn[i].tot_len < 1024*1024)
sprintf (value, "%.2fMB", stat_conn[i].tot_len/1024);
else
sprintf (value, "%.2fGB", stat_conn[i].tot_len/1024*1024);
n_print("princ",stat_conn[i].lin,60,0,"%s",value);
stat_conn[i].lin=liness;
nconns++;
liness++;
return(1);
}
}
return(0);
}
void ptimecounting()
{
for (;;)
{
sleep(1);
if (ptime==10)
{
/* refresh every X seconds */
ptime=1;
partial=0;
}
else
ptime++;
}
}
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