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Code Issues Releases Wiki Activity

Null/Loopback PDUs can now be sent on *BSD.

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This commit is contained in:
Matias Fontanini
2012-12-09 13:05:39 -03:00
parent a7e0c094fb
commit c933faaf5e
2 changed files with 51 additions and 5 deletions
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27
src/loopback.cpp
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@@ -29,14 +29,19 @@
#ifndef WIN32
#include <sys/socket.h>
#ifdef BSD
#include <net/if_dl.h>
#include <netinet/in.h>
#include <net/ethernet.h>
#endif
#endif
#include <stdexcept>
#include <cassert>
#include <cstring>
#include "loopback.h"
#include "packet_sender.h"
#include "ip.h"
#include "llc.h"
#include "macros.h"
#include "rawpdu.h"
#if defined(BSD) && !defined(PF_LLC)
@@ -51,8 +56,8 @@ Loopback::Loopback()
}
Loopback::Loopback(uint32_t family_id, PDU *inner_pdu)
: PDU(inner_pdu), _family(family_id)
Loopback::Loopback(const NetworkInterface &iface, PDU *inner_pdu)
: PDU(inner_pdu), _family(), _iface(iface)
{
}
@@ -85,6 +90,10 @@ void Loopback::family(uint32_t family_id) {
_family = family_id;
}
void Loopback::iface(const NetworkInterface &new_iface) {
_iface = new_iface;
}
uint32_t Loopback::header_size() const {
return sizeof(_family);
}
@@ -92,6 +101,18 @@ uint32_t Loopback::header_size() const {
void Loopback::write_serialization(uint8_t *buffer, uint32_t total_sz, const PDU *)
{
assert(total_sz >= sizeof(_family));
if(dynamic_cast<const Tins::IP*>(inner_pdu()))
_family = PF_INET;
else if(dynamic_cast<const Tins::LLC*>(inner_pdu()))
_family = PF_LLC;
*reinterpret_cast<uint32_t*>(buffer) = _family;
}
#ifdef BSD
void Loopback::send(PacketSender &sender) {
if(!_iface)
throw std::runtime_error("Interface has not been set");
sender.send_l2(*this, 0, 0, _iface);
}
#endif // WIN32
}