1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2#ifndef FLOW_DISSECTOR_LOAD
3#define FLOW_DISSECTOR_LOAD
4
5#include <bpf/bpf.h>
6#include <bpf/libbpf.h>
7#include "testing_helpers.h"
8
9static inline int bpf_flow_load(struct bpf_object **obj,
10				const char *path,
11				const char *prog_name,
12				const char *map_name,
13				const char *keys_map_name,
14				int *prog_fd,
15				int *keys_fd)
16{
17	struct bpf_program *prog, *main_prog;
18	struct bpf_map *prog_array, *keys;
19	int prog_array_fd;
20	int ret, fd, i;
21
22	ret = bpf_prog_test_load(path, BPF_PROG_TYPE_FLOW_DISSECTOR, obj,
23			    prog_fd);
24	if (ret)
25		return ret;
26
27	main_prog = bpf_object__find_program_by_name(*obj, prog_name);
28	if (!main_prog)
29		return -1;
30
31	*prog_fd = bpf_program__fd(main_prog);
32	if (*prog_fd < 0)
33		return -1;
34
35	prog_array = bpf_object__find_map_by_name(*obj, map_name);
36	if (!prog_array)
37		return -1;
38
39	prog_array_fd = bpf_map__fd(prog_array);
40	if (prog_array_fd < 0)
41		return -1;
42
43	if (keys_map_name && keys_fd) {
44		keys = bpf_object__find_map_by_name(*obj, keys_map_name);
45		if (!keys)
46			return -1;
47
48		*keys_fd = bpf_map__fd(keys);
49		if (*keys_fd < 0)
50			return -1;
51	}
52
53	i = 0;
54	bpf_object__for_each_program(prog, *obj) {
55		fd = bpf_program__fd(prog);
56		if (fd < 0)
57			return fd;
58
59		if (fd != *prog_fd) {
60			bpf_map_update_elem(prog_array_fd, &i, &fd, BPF_ANY);
61			++i;
62		}
63	}
64
65	return 0;
66}
67
68#endif /* FLOW_DISSECTOR_LOAD */
69