sync

[l2tpns.git] / test / bounce.c

diff --git a/test/bounce.c b/test/bounce.c
new file mode 100644 (file)
index 0000000..5443b67
--- /dev/null
+++ b/test/bounce.c
@@ -0,0 +1,96 @@
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/if.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <signal.h>
+#include <getopt.h>
+
+#define PORT   39000
+
+void sigalarm(int junk);
+unsigned long long recv_count = 0;
+unsigned long pps = 0;
+unsigned long bytes = 0;
+unsigned long dropped = 0, seq = 0;
+unsigned port = PORT;
+
+int main(int argc, char *argv[])
+{
+       int on = 1;
+       struct sockaddr_in addr;
+       int s;
+       char *packet;
+
+       while ((s = getopt(argc, argv, "?p:")) > 0)
+       {
+               switch (s)
+               {
+                       case 'p' :
+                               port = atoi(optarg);
+                               break;
+                       case '?' :
+                               printf("Options:\n");
+                               printf("\t-p port to listen on\n");
+                               return(0);
+                               break;
+               }
+       }
+
+       memset(&addr, 0, sizeof(addr));
+       addr.sin_family = AF_INET;
+       addr.sin_port = htons(port);
+
+       s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+       setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+       if (bind(s, (void *) &addr, sizeof(addr)) < 0)
+       {
+               perror("bind");
+               return -1;
+       }
+
+       signal(SIGALRM, sigalarm);
+       alarm(1);
+
+       printf("Waiting on port %d\n", port);
+       packet = (char *)malloc(65535);
+       while (1)
+       {
+               struct sockaddr_in addr;
+               int alen = sizeof(addr), l;
+               unsigned int iseq;
+
+               l = recvfrom(s, packet, 65535, 0, (void *) &addr, &alen);
+               if (l < 0) continue;
+               recv_count++;
+               pps++;
+               bytes += l;
+               iseq =  *((unsigned int *)  packet);
+               if (seq != iseq)
+                       dropped += (iseq - seq);
+               seq = iseq + 1;
+
+               sendto(s, packet, l, 0, (struct sockaddr *)&addr, alen);
+       }
+
+       free(packet);
+}
+
+void sigalarm(int junk)
+{
+       printf("Recv: %10llu %0.1fMbits/s (%lu pps) (%5ld dropped)\n", recv_count, (bytes / 1024.0 / 1024.0 * 8), pps, dropped);
+       pps = bytes = 0;
+       alarm(1);
+}
+