MATCH_INVERT
npfctl_bpf_group_enter(ctx, (opts & MATCH_INVERT) != 0);
opts = MATCH_SRC | (fopts->fo_finvert ? MATCH_INVERT : 0);
opts = MATCH_DST | (fopts->fo_tinvert ? MATCH_INVERT : 0);
opts = MATCH_DST | (fopts->fo_tinvert ? MATCH_INVERT : 0);
opts = MATCH_SRC | (fopts->fo_finvert ? MATCH_INVERT : 0);