mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 22:53:55 +08:00
4d18f6de6a
Currently, header inclusion in each file is inconsistent.
For example, "libbpf.h" header is included as multiple ways.
#include "bpf/libbpf.h"
#include "libbpf.h"
Due to commit b552d33c80 ("samples/bpf: fix include path
in Makefile"), $(srctree)/tools/lib/bpf/ path had been included
during build, path "bpf/" in header isn't necessary anymore.
This commit removes path "bpf/" in header inclusion.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include <linux/bpf.h>
|
|
#include <bpf/bpf.h>
|
|
#include "libbpf.h"
|
|
#include "sock_example.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};
|
|
struct bpf_object *obj;
|
|
int map_fd, prog_fd;
|
|
char filename[256];
|
|
int i, sock;
|
|
FILE *f;
|
|
|
|
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
|
|
setrlimit(RLIMIT_MEMLOCK, &r);
|
|
|
|
if (bpf_prog_load(filename, BPF_PROG_TYPE_SOCKET_FILTER,
|
|
&obj, &prog_fd))
|
|
return 1;
|
|
|
|
map_fd = bpf_object__find_map_fd_by_name(obj, "hash_map");
|
|
|
|
sock = open_raw_sock("lo");
|
|
|
|
assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd,
|
|
sizeof(prog_fd)) == 0);
|
|
|
|
f = popen("ping -4 -c5 localhost", "r");
|
|
(void) f;
|
|
|
|
for (i = 0; i < 5; i++) {
|
|
int key = 0, next_key;
|
|
struct pair value;
|
|
|
|
while (bpf_map_get_next_key(map_fd, &key, &next_key) == 0) {
|
|
bpf_map_lookup_elem(map_fd, &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;
|
|
}
|