BRDGGFILT
if (do_cmd(sock, bridge, BRDGGFILT, ¶m, sizeof(param), 0) < 0) {
if (do_cmd(sock, bridge, BRDGGFILT, ¶m, sizeof(param), 0) < 0)
[BRDGGFILT] = {bridge_ioctl_gfilt, sizeof(struct ifbrparam), BC_F_COPYOUT},