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samples: bpf: use libbpf where easy

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Some samples don't really need the magic of bpf_load,
switch them to libbpf.

v2: - specify program types.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2019-02-27 19:04:13 -08:00 • committed by Daniel Borkmann
parent f74a53d9a5
commit 1a9b268c90
4 changed files with 35 additions and 25 deletions
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10
samples/bpf/fds_example.c
View file

@ -14,8 +14,8 @@
#include <bpf/bpf.h>
#include "bpf/libbpf.h"
#include "bpf_insn.h"
#include "bpf_load.h"
#include "sock_example.h"
#define BPF_F_PIN (1 << 0)
@ -57,10 +57,14 @@ static int bpf_prog_create(const char *object)
BPF_EXIT_INSN(),
};
size_t insns_cnt = sizeof(insns) / sizeof(struct bpf_insn);
char bpf_log_buf[BPF_LOG_BUF_SIZE];
struct bpf_object *obj;
int prog_fd;
if (object) {
assert(!load_bpf_file((char *)object));
return prog_fd[0];
assert(!bpf_prog_load(object, BPF_PROG_TYPE_UNSPEC,
&obj, &prog_fd));
return prog_fd;
} else {
return bpf_load_program(BPF_PROG_TYPE_SOCKET_FILTER,
insns, insns_cnt, "GPL", 0,