Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / samples / bpf / sockex1_user.c

diff --git a/kernel/samples/bpf/sockex1_user.c b/kernel/samples/bpf/sockex1_user.c
new file mode 100644 (file)
index 0000000..678ce46
--- /dev/null
+++ b/kernel/samples/bpf/sockex1_user.c
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <assert.h>
+#include <linux/bpf.h>
+#include "libbpf.h"
+#include "bpf_load.h"
+#include <unistd.h>
+#include <arpa/inet.h>
+
+int main(int ac, char **argv)
+{
+       char filename[256];
+       FILE *f;
+       int i, sock;
+
+       snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
+
+       if (load_bpf_file(filename)) {
+               printf("%s", bpf_log_buf);
+               return 1;
+       }
+
+       sock = open_raw_sock("lo");
+
+       assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
+                         sizeof(prog_fd[0])) == 0);
+
+       f = popen("ping -c5 localhost", "r");
+       (void) f;
+
+       for (i = 0; i < 5; i++) {
+               long long tcp_cnt, udp_cnt, icmp_cnt;
+               int key;
+
+               key = IPPROTO_TCP;
+               assert(bpf_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0);
+
+               key = IPPROTO_UDP;
+               assert(bpf_lookup_elem(map_fd[0], &key, &udp_cnt) == 0);
+
+               key = IPPROTO_ICMP;
+               assert(bpf_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0);
+
+               printf("TCP %lld UDP %lld ICMP %lld bytes\n",
+                      tcp_cnt, udp_cnt, icmp_cnt);
+               sleep(1);
+       }
+
+       return 0;
+}