int xt_check_match(const struct xt_match *match, unsigned short family,
                   unsigned int size, const char *table, unsigned int hook_mask,
		   unsigned short proto, int inv_proto)
{
	if (XT_ALIGN(match->matchsize) != size) {
		printk("%s_tables: %s match: invalid size %Zu != %u\n",
		       xt_prefix[family], match->name,
		       XT_ALIGN(match->matchsize), size);
		return -EINVAL;
	}
	if (match->table && strcmp(match->table, table)) {
		printk("%s_tables: %s match: only valid in %s table, not %s\n",
		       xt_prefix[family], match->name, match->table, table);
		return -EINVAL;
	}
	if (match->hooks && (hook_mask & ~match->hooks) != 0) {
		printk("%s_tables: %s match: bad hook_mask %u\n",
		       xt_prefix[family], match->name, hook_mask);
		return -EINVAL;
	}
	if (match->proto && (match->proto != proto || inv_proto)) {
		printk("%s_tables: %s match: only valid for protocol %u\n",
		       xt_prefix[family], match->name, match->proto);
		return -EINVAL;
	}
	return 0;
}
int xt_check_match(const struct xt_match *match, unsigned short family,
                   unsigned int size, const char *table, unsigned int hook_mask,
		   unsigned short proto, int inv_proto)
{
	if (XT_ALIGN(match->matchsize) != size) {
		printk("%s_tables: %s match: invalid size %Zu != %u\n",
		       xt_prefix[family], match->name,
		       XT_ALIGN(match->matchsize), size);
		return -EINVAL;
	}
	if (match->table && strcmp(match->table, table)) {
		printk("%s_tables: %s match: only valid in %s table, not %s\n",
		       xt_prefix[family], match->name, match->table, table);
		return -EINVAL;
	}
	if (match->hooks && (hook_mask & ~match->hooks) != 0) {
		printk("%s_tables: %s match: bad hook_mask %u\n",
		       xt_prefix[family], match->name, hook_mask);
		return -EINVAL;
	}
	if (match->proto && (match->proto != proto || inv_proto)) {
		printk("%s_tables: %s match: only valid for protocol %u\n",
		       xt_prefix[family], match->name, match->proto);
		return -EINVAL;
	}
	return 0;
}