int main(){
int fd, connfd;
struct sockaddr_in cliaddr;
socklen_t cliaddrlen = sizeof(cliaddr);
/* Attempt to connect to socket */
if((fd = connsock(8080)) == -1){
perror("Connection to socket failed\n");
return -1;
}
/*Create thread pool with 64 threads */
ThreadPool * tp = init(64);
if (tp == NULL){
#ifdef SERVER_DEBUG
perror("Could not create ThreadPool");
#endif
return -1;
}
for(;;){
/* Try to accept a connection */
if((connfd = accept(fd, (struct sockaddr *) &cliaddr, &cliaddrlen)) == -1){
perror("Could not accept a connection");
close(fd);
return -1;
}
/* Add connection to stack inside Thread Pool for processing */
if (addWaiting(tp,connfd)<0){
perror("Could not add connection to stack");
}
#ifdef SERVER_DEBUG
printf("MAIN: New client added to work queue\n\n");
#endif
}
return 1;
}
int
main(int argc, char **argv)
{
char *dev, *capfile, *bpf_prog;
extern char *optarg;
extern int optind;
extern char *__progname;
int ch, dontfork_flag, r;
pcap_t *pcap = NULL;
struct sockaddr_storage dest, src;
socklen_t destlen, srclen;
#ifdef NF9
int opt =0;
#endif
bpf_prog = NULL;
dev = capfile = NULL;
dontfork_flag = 0;
memset(&dest, '\0', sizeof(dest));
memset(&src, '\0', sizeof(src));
destlen = 0;
srclen = 0;
#ifdef NF9
while ((ch = getopt(argc, argv, "hdDi:n:r:S:s:v:m:p:e:")) != -1)
{
#else
while ((ch = getopt(argc, argv, "hdDi:n:r:S:v:")) != -1)
{
#endif /*NF9*/
switch (ch)
{
case 'h':
usage();
return (0);
case 'S':
if (strcasecmp(optarg, "any") == 0)
{
direction = 0;
break;
}
if (strcasecmp(optarg, "in") == 0)
{
direction = PF_IN;
break;
}
if (strcasecmp(optarg, "out") == 0)
{
direction = PF_OUT;
break;
}
usage();
return (0);
case 'D':
verbose_flag = 1;
/* FALLTHROUGH */
case 'd':
dontfork_flag = 1;
break;
case 'i':
if (capfile != NULL || dev != NULL)
{
fprintf(stderr, "Packet source already specified.\n\n");
usage();
exit(1);
}
dev = optarg;
break;
case 'n':
/* Will exit on failure */
destlen = sizeof(dest);
parse_hostport(optarg, (struct sockaddr *)&dest,
&destlen);
break;
case 'r':
if (capfile != NULL || dev != NULL)
{
fprintf(stderr, "Packet source already specified.\n\n");
usage();
exit(1);
}
capfile = optarg;
dontfork_flag = 1;
break;
case 's':
/* Will exit on failure */
srclen = sizeof(src);
parse_host(optarg, (struct sockaddr *)&src,
&srclen);
break;
case 'v':
switch((export_version = atoi(optarg)))
{
case 1:
case 5:
#ifdef NF9
case NF9_VERSION:
#endif /*NF9*/
break;
default:
fprintf(stderr, "Invalid NetFlow version\n");
exit(1);
}
break;
#ifdef NF9
case 'm':
{
opt= atoi(optarg);
if(opt>=0)
refresh_minutes_interval=opt;
}
break;
case 'p':
{
opt= atoi(optarg);
if(opt>0)
refresh_packets_interval=opt;
}
break;
case 'e':
source_id = atoi(optarg);
break;
#endif /*NF9*/
default:
fprintf(stderr, "Invalid commandline option.\n");
usage();
exit(1);
}
}
if (capfile == NULL && dev == NULL)
dev = DEFAULT_INTERFACE;
/* join remaining arguments (if any) into bpf program */
bpf_prog = argv_join(argc - optind, argv + optind);
/* Will exit on failure */
setup_packet_capture(&pcap, dev, capfile, bpf_prog);
/* Netflow send socket */
if (dest.ss_family != 0 && src.ss_family != 0)
netflow_socket = connsock_bind((struct sockaddr *)&dest, destlen, (struct sockaddr *)&src, srclen);
else if (dest.ss_family != 0)
netflow_socket = connsock((struct sockaddr *)&dest, destlen);
else
{
fprintf(stderr, "No export target defined\n");
if (!verbose_flag)
exit(1);
}
if (dontfork_flag)
{
if (!verbose_flag)
drop_privs();
openlog(__progname, LOG_PID|LOG_PERROR, LOG_DAEMON);
}
else
{
daemon(0, 0);
openlog(__progname, LOG_PID, LOG_DAEMON);
if (pidfile(NULL) == -1)
{
syslog(LOG_WARNING, "Couldn't write pidfile: %s",
strerror(errno));
}
/* Close and reopen syslog to pickup chrooted /dev/log */
closelog();
openlog(__progname, LOG_PID, LOG_DAEMON);
drop_privs();
signal(SIGINT, sighand_exit);
signal(SIGTERM, sighand_exit);
}
if (dev != NULL)
syslog(LOG_NOTICE, "%s listening on %s", __progname, dev);
/* Main processing loop */
gettimeofday(&start_time, NULL);
r = pcap_loop(pcap, -1, packet_cb, NULL);
if (r == -1)
{
syslog(LOG_ERR, "pcap_dispatch: %s", pcap_geterr(pcap));
exit(1);
}
if (r == 0 && capfile == NULL)
syslog(LOG_NOTICE, "Exiting on pcap EOF");
exit(0);
}
