luabind::object LuaProxy::NPC::layerObj(lua_State *L) const
{
if(!isValid_throw(L))
return luabind::object();
NPCMOB* thisnpc = ::NPC::Get(m_index);
return findlayer(((std::string)thisnpc->layerName).c_str(), L);
}
int
echo_get_id(struct datalink *dl,
struct MAC *srcmac,
struct MAC *dstmac,
uint32_t real_ip,
uint32_t src,
uint32_t *dly,
uint16_t *ip_id
)
{
struct timeval tva,tvb;
struct layer *proto;
int n;
if(gettimeofday(&tva,NULL) < 0 ){
fprintf(stderr,"gettimeofday returned error %s\n" ,strerror(errno));
return -1;
}
ICMPEchoRequest(dl,srcmac,dstmac,real_ip,src,rand()%0xFFFF
, rand()%0xffff);
proto = recvlayers(dl,&n);
if( proto == NULL ){
fprintf(stderr,"recvlayers returned error %s\n"
,strerror(errno));
return -1;
}
if(gettimeofday(&tvb,NULL) < 0 ){
fprintf(stderr,"gettimeofday returned error %s\n" ,strerror(errno));
return -1;
}
*dly = tvb.tv_usec - tva.tv_usec;
proto = findlayer(proto,LT_IP);
fprintf(stderr,"ip_id=%x\n",ntohs(((xip)proto->proto)->ip_id));
if( proto == NULL ){
fprintf(stderr,"findlayer returned error %s\n"
,strerror(errno));
return -1;
}
*ip_id = ntohs( ((xip)proto->proto)->ip_id);
return 0;
}
int
main(int argc, char **argv)
{
struct layer *head,*tcp;
struct TCPSocket ts;
struct MAC imac,dmac;
uint32_t ip,dip,gip;
uint16_t eport;
int n;
if(argc < 6)
usage(*argv);
if(if_menu(&imac) < 0)
exit(1);
str_to_ip(argv[1],&ip);
str_to_ip(argv[2],&dip);
str_to_ip(argv[5],&gip);
if( ARPRequest(&imac,&dmac,ip,gip,5) < 0 ){
fprintf(stderr,"error: no route to host.\n");
exit(1);
}
ARPReply(&imac,ip,&dmac,gip);
eport = atoi(argv[4]);
createSocket(&ts,&imac,&dmac,ip,dip,atoi(argv[3]),atoi(argv[3]));
filterDatalink("tcp");
head = NULL;
while(!kbhit()){
if(ts.hostport++ < eport)
SYN(&ts);
if( ( head = recvlayers(&n) ) == NULL)
continue;
if( (tcp = findlayer(head,LT_TCP) ) != NULL ){
struct tcphdr *t;
t = (xtcp)tcp->proto;
if( ( ( t->th_flags & TH_SYN ) == TH_SYN) && ( ( t->th_flags & TH_ACK ) == TH_ACK) ){
printf("recv: SYN-ACK from port %d\n",ntohs(t->th_sport));
printlayers(tcp);
RST(&ts);
}
}
rmlayers(head);
}
closeDatalink();
exit(0);
}
