std::shared_ptr<const Msg>
unmarshall(const_buffer<char> inb)
{
std::map<int, std::shared_ptr<BaseMarshall> >::iterator it;
int type=ntohl(*reinterpret_cast<const int*> (inb.addr()));
unsigned int len=ntohl(*reinterpret_cast<const unsigned int*> (inb.addr()+sizeof(int)));
it=m_map.find(type);
if(it==m_map.end())
throw std::runtime_error("marshalling:: message type not supported");
return it->second->unmarshall(const_buffer<char>(inb.addr()+HEAD_SIZE,len));
}
void UHPacket::parse_uh(const const_buffer<uint8_t> & uh_buf)
{
const uint8_t * buf = uh_buf.addr();
m_key.proto = *(buf + 0x0A);
m_key.src_port = ntohs(*((uint16_t*)(buf + 0x1C)));
m_key.dst_port = ntohs(*((uint16_t*)(buf + 0x1E)));
m_key.src_ip4 = ntohl(*((uint32_t*)(buf + 0x2C)));
m_key.dst_ip4 = ntohl(*((uint32_t*)(buf + 0x3C)));
//m_tstamp = ntohl(*((uint32_t*)(buf + 0x10))); // FIXME: retype
m_length = ntohs(*((uint16_t*)(buf + 0x0B)));
m_caplen = 0;
switch(*(buf + 0x08))
{
case 0x40:
m_pkttype = Packet::kPktTypeIP4;
break;
case 0x60:
m_pkttype = Packet::kPktTypeIP6;
break;
default:
m_pkttype = 0;
break;
}
m_iptos = *(buf + 0x1A);
m_ipttl = *(buf + 0x1B);
m_machdr_parsed = true;
m_iphdr_parsed = true;
m_ports_parsed = true;
m_l4hdr_parsed = true;
}