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
9 static 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
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