static void sendSample(SFLReceiver *receiver)
{
/* construct and send out the sample, then reset for the next one... */
SFLAgent *agent = receiver->agent;
/* go back and fill in the header */
receiver->sampleCollector.datap = receiver->sampleCollector.data;
putNet32(receiver, SFLDATAGRAM_VERSION5);
putAddress(receiver, &agent->myIP);
putNet32(receiver, agent->subId);
putNet32(receiver, ++receiver->sampleCollector.packetSeqNo);
putNet32(receiver, (uint32_t)((agent->now - agent->bootTime) * 1000));
putNet32(receiver, receiver->sampleCollector.numSamples);
/* send */
if(agent->sendFn) (*agent->sendFn)(agent->magic,
agent,
receiver,
(u_char *)receiver->sampleCollector.data,
receiver->sampleCollector.pktlen);
else {
#ifdef SFLOW_DO_SOCKET
/* send it myself */
if (receiver->sFlowRcvrAddress.type == SFLADDRESSTYPE_IP_V6) {
uint32_t soclen = sizeof(struct sockaddr_in6);
int result = sendto(agent->receiverSocket6,
receiver->sampleCollector.data,
receiver->sampleCollector.pktlen,
0,
(struct sockaddr *)&receiver->receiver6,
soclen);
if(result == -1 && errno != EINTR) sfl_agent_sysError(agent, "receiver", "IPv6 socket sendto error");
if(result == 0) sfl_agent_error(agent, "receiver", "IPv6 socket sendto returned 0");
}
else {
uint32_t soclen = sizeof(struct sockaddr_in);
int result = sendto(agent->receiverSocket4,
receiver->sampleCollector.data,
receiver->sampleCollector.pktlen,
0,
(struct sockaddr *)&receiver->receiver4,
soclen);
if(result == -1 && errno != EINTR) sfl_agent_sysError(agent, "receiver", "socket sendto error");
if(result == 0) sfl_agent_error(agent, "receiver", "socket sendto returned 0");
}
#endif
}
/* reset for the next time */
resetSampleCollector(receiver);
}
static void sendSample(SFLReceiver *receiver)
{
/* construct and send out the sample, then reset for the next one... */
/* first fill in the header with the latest values */
/* version, agent_address and sub_agent_id were pre-set. */
u_int32_t hdrIdx = (receiver->agent->myIP.type == SFLADDRESSTYPE_IP_V6) ? 7 : 4;
receiver->sampleCollector.data[hdrIdx++] = htonl(++receiver->sampleCollector.packetSeqNo); /* seq no */
receiver->sampleCollector.data[hdrIdx++] = htonl((receiver->agent->now - receiver->agent->bootTime) * 1000); /* uptime */
receiver->sampleCollector.data[hdrIdx++] = htonl(receiver->sampleCollector.numSamples); /* num samples */
/* send */
if(receiver->agent->sendFn) (*receiver->agent->sendFn)(receiver->agent->magic,
receiver->agent,
receiver,
(u_char *)receiver->sampleCollector.data,
receiver->sampleCollector.pktlen);
else {
#ifdef SFLOW_DO_SOCKET
/* send it myself */
if (receiver->sFlowRcvrAddress.type == SFLADDRESSTYPE_IP_V6) {
u_int32_t soclen = sizeof(struct sockaddr_in6);
int result = sendto(receiver->agent->receiverSocket6,
receiver->sampleCollector.data,
receiver->sampleCollector.pktlen,
0,
(struct sockaddr *)&receiver->receiver6,
soclen);
if(result == -1 && errno != EINTR) sfl_agent_sysError(receiver->agent, "receiver", "IPv6 socket sendto error");
if(result == 0) sfl_agent_error(receiver->agent, "receiver", "IPv6 socket sendto returned 0");
}
else {
u_int32_t soclen = sizeof(struct sockaddr_in);
int result = sendto(receiver->agent->receiverSocket4,
receiver->sampleCollector.data,
receiver->sampleCollector.pktlen,
0,
(struct sockaddr *)&receiver->receiver4,
soclen);
if(result == -1 && errno != EINTR) sfl_agent_sysError(receiver->agent, "receiver", "socket sendto error");
if(result == 0) sfl_agent_error(receiver->agent, "receiver", "socket sendto returned 0");
}
#endif
}
/* reset for the next time */
resetSampleCollector(receiver);
}
static void sflError(SFLReceiver *receiver, char *msg)
{
sfl_agent_error(receiver->agent, "receiver", msg);
resetSampleCollector(receiver);
}
