forked from luck/tmp_suning_uos_patched
eb88d58559
Signed-off-by: William Tu <u9012063@gmail.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include <linux/bpf.h>
|
|
#include "libbpf.h"
|
|
#include "bpf_load.h"
|
|
#include <unistd.h>
|
|
#include <arpa/inet.h>
|
|
#include <sys/resource.h>
|
|
|
|
struct pair {
|
|
__u64 packets;
|
|
__u64 bytes;
|
|
};
|
|
|
|
int main(int ac, char **argv)
|
|
{
|
|
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
|
|
char filename[256];
|
|
FILE *f;
|
|
int i, sock;
|
|
|
|
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
|
|
setrlimit(RLIMIT_MEMLOCK, &r);
|
|
|
|
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++) {
|
|
int key = 0, next_key;
|
|
struct pair value;
|
|
|
|
while (bpf_get_next_key(map_fd[0], &key, &next_key) == 0) {
|
|
bpf_lookup_elem(map_fd[0], &next_key, &value);
|
|
printf("ip %s bytes %lld packets %lld\n",
|
|
inet_ntoa((struct in_addr){htonl(next_key)}),
|
|
value.bytes, value.packets);
|
|
key = next_key;
|
|
}
|
|
sleep(1);
|
|
}
|
|
return 0;
|
|
}
|