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Code Issues Releases Wiki Activity

Added PacketSender::recv_l2. Ethernet packets can now expect a response packet. ARP response is working now.

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This commit is contained in:
matias
2011-08-16 00:36:59 -03:00
parent 5b851a9142
commit a489eab8b9
9 changed files with 190 additions and 29 deletions
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22
src/packetsender.cpp
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@@ -29,7 +29,6 @@
#include <netdb.h>
#endif
#include <assert.h>
#include <iostream> //borrar
#include <errno.h>
#include <string.h>
#include "packetsender.h"
@@ -103,10 +102,29 @@ bool Tins::PacketSender::send_l2(PDU *pdu, struct sockaddr* link_addr, uint32_t
uint8_t *buffer = pdu->serialize(sz);
bool ret_val = (sendto(sock, buffer, sz, 0, link_addr, len_link_addr) != -1);
delete[] buffer;
return ret_val;
}
Tins::PDU *Tins::PacketSender::recv_l2(PDU *pdu, struct sockaddr *link_addr, uint32_t len_link_addr) {
if(!open_l2_socket())
return 0;
uint8_t buffer[2048];
int sock = _sockets[ETHER_SOCKET];
bool done = false;
socklen_t addrlen = len_link_addr;
while(!done) {
ssize_t size = recvfrom(sock, buffer, 2048, 0, link_addr, &addrlen);
if(size == -1)
return 0;
if(pdu->matches_response(buffer, size)) {
return pdu->clone_packet(buffer, size);
}
}
return 0;
}
Tins::PDU *Tins::PacketSender::recv_l3(PDU *pdu, struct sockaddr* link_addr, uint32_t len_link_addr, SocketType type) {
if(!open_l3_socket(type))
return 0;