xt_bpf_info
const struct xt_bpf_info *info = par->matchinfo;
.matchsize = sizeof(struct xt_bpf_info),
.usersize = offsetof(struct xt_bpf_info, filter),
struct xt_bpf_info *info = par->matchinfo;
const struct xt_bpf_info *info = par->matchinfo;