int frame_pfring(pfring *pd, struct frame_buf *f){
fbuf = f;
pfcount = 0;
packet_direction direction = rx_and_tx_direction;
int rc;
pfring_set_direction(pd, direction);
if((rc = pfring_set_socket_mode(pd, recv_only_mode)) != 0)
fprintf(stderr, "pfring_set_socket_mode returned [rc=%d]\n", rc);
pfring_set_application_stats(pd, "statistics not yet computed, please try again...\n");
if(pfring_enable_ring(pd) != 0){
fprintf(stderr, "unable to enable ring\n");
pfring_close(pd);
return -1;
}
printf("capture start...\n");
pfring_loop(pd, pf_dummy_packet, (u_char *)NULL, 1);
pfring_close(pd);
return 0;
}
void print_stats() {
pfring_stat pfringStat;
struct timeval endTime;
double deltaMillisec;
static u_int8_t print_all;
static u_int64_t lastPkts = 0;
static u_int64_t lastBytes = 0;
double diff, bytesDiff;
static struct timeval lastTime;
char buf[256], buf1[64], buf2[64], buf3[64], timebuf[128];
u_int64_t deltaMillisecStart;
if(startTime.tv_sec == 0) {
gettimeofday(&startTime, NULL);
print_all = 0;
} else
print_all = 1;
gettimeofday(&endTime, NULL);
deltaMillisec = delta_time(&endTime, &startTime);
if(pfring_stats(pd, &pfringStat) >= 0) {
double thpt;
int i;
unsigned long long nBytes = 0, nPkts = 0, nMatches = 0;
for(i=0; i < num_threads; i++) {
nBytes += stats->numBytes[i];
nPkts += stats->numPkts[i];
nMatches += stats->numStringMatches[i];
}
deltaMillisecStart = delta_time(&endTime, &startTime);
snprintf(buf, sizeof(buf),
"Duration: %s\n"
"Packets: %lu\n"
"Dropped: %lu\n"
"Bytes: %lu\n",
msec2dhmsm(deltaMillisecStart, timebuf, sizeof(timebuf)),
(long unsigned int) pfringStat.recv,
(long unsigned int) pfringStat.drop,
(long unsigned int) nBytes);
pfring_set_application_stats(pd, buf);
thpt = ((double)8*nBytes)/(deltaMillisec*1000);
fprintf(stderr, "=========================\n"
"Absolute Stats: [%u pkts rcvd]"
"[%u pkts dropped]\n"
"Total Pkts=%u/Dropped=%.1f %%\n",
(unsigned int)pfringStat.recv,
(unsigned int)pfringStat.drop,
(unsigned int)(pfringStat.recv+pfringStat.drop),
pfringStat.drop == 0 ? 0 :
(double)(pfringStat.drop*100)/(double)(pfringStat.recv+pfringStat.drop));
fprintf(stderr, "%s pkts - %s bytes",
pfring_format_numbers((double)nPkts, buf1, sizeof(buf1), 0),
pfring_format_numbers((double)nBytes, buf2, sizeof(buf2), 0));
if(print_all)
fprintf(stderr, " [%s pkt/sec - %s Mbit/sec]\n",
pfring_format_numbers((double)(nPkts*1000)/deltaMillisec, buf1, sizeof(buf1), 1),
pfring_format_numbers(thpt, buf2, sizeof(buf2), 1));
else
fprintf(stderr, "\n");
if(automa != NULL)
fprintf(stderr, "String matched: %llu\n", nMatches);
if(print_all && (lastTime.tv_sec > 0)) {
deltaMillisec = delta_time(&endTime, &lastTime);
diff = nPkts-lastPkts;
bytesDiff = nBytes - lastBytes;
bytesDiff /= (1000*1000*1000)/8;
snprintf(buf, sizeof(buf),
"Actual Stats: %llu pkts [%s ms][%s pps/%s Gbps]",
(long long unsigned int)diff,
pfring_format_numbers(deltaMillisec, buf1, sizeof(buf1), 1),
pfring_format_numbers(((double)diff/(double)(deltaMillisec/1000)), buf2, sizeof(buf2), 1),
pfring_format_numbers(((double)bytesDiff/(double)(deltaMillisec/1000)), buf3, sizeof(buf3), 1));
fprintf(stderr, "=========================\n%s\n", buf);
}
lastPkts = nPkts, lastBytes = nBytes;
}
lastTime.tv_sec = endTime.tv_sec, lastTime.tv_usec = endTime.tv_usec;
fprintf(stderr, "=========================\n\n");
}
