/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
#ifndef FLOW_DISSECTOR_LOAD
#define FLOW_DISSECTOR_LOAD

#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include "testing_helpers.h"

static inline int bpf_flow_load(struct bpf_object **obj,
                                const char *path,
                                const char *prog_name,
                                const char *map_name,
                                const char *keys_map_name,
                                int *prog_fd,
                                int *keys_fd)
{
        struct bpf_program *prog, *main_prog;
        struct bpf_map *prog_array, *keys;
        int prog_array_fd;
        int ret, fd, i;

        ret = bpf_prog_test_load(path, BPF_PROG_TYPE_FLOW_DISSECTOR, obj,
                            prog_fd);
        if (ret)
                return ret;

        main_prog = bpf_object__find_program_by_name(*obj, prog_name);
        if (!main_prog)
                return -1;

        *prog_fd = bpf_program__fd(main_prog);
        if (*prog_fd < 0)
                return -1;

        prog_array = bpf_object__find_map_by_name(*obj, map_name);
        if (!prog_array)
                return -1;

        prog_array_fd = bpf_map__fd(prog_array);
        if (prog_array_fd < 0)
                return -1;

        if (keys_map_name && keys_fd) {
                keys = bpf_object__find_map_by_name(*obj, keys_map_name);
                if (!keys)
                        return -1;

                *keys_fd = bpf_map__fd(keys);
                if (*keys_fd < 0)
                        return -1;
        }

        i = 0;
        bpf_object__for_each_program(prog, *obj) {
                fd = bpf_program__fd(prog);
                if (fd < 0)
                        return fd;

                if (fd != *prog_fd) {
                        bpf_map_update_elem(prog_array_fd, &i, &fd, BPF_ANY);
                        ++i;
                }
        }

        return 0;
}

#endif /* FLOW_DISSECTOR_LOAD */