#include <stdio.h>
#include <bpf/libbpf.h>
#include "bridge_xdp.h"

int main(int argc, char **argv)
{
    if (argc != 2) {
        printf("Uso: %s <interface>\n", argv[0]);
        return 1;
    }

    // Carregar programa XDP
    struct bpf_object *obj = bpf_object__open("bridge_xdp.o");
    if (!obj) {
        printf("Erro ao abrir objeto BPF\n");
        return 1;
    }

    if (bpf_object__load(obj)) {
        printf("Erro ao carregar objeto BPF\n");
        return 1;
    }

    // Anexar à interface
    int prog_fd = bpf_program__fd(bpf_object__find_program_by_name(obj, "bridge_filter"));
    if (bpf_xdp_attach(if_nametoindex(argv[1]), prog_fd, XDP_FLAGS_SKB_MODE, NULL) != 0) {
        printf("Erro ao anexar XDP\n");
        return 1;
    }

    printf("XDP anexado com sucesso à interface %s\n", argv[1]);
    return 0;
}