[NETFILTER]: ebt_mark: add or/and/xor action support to mark target

#ifndef __LINUX_BRIDGE_EBT_MARK_T_H

#define __LINUX_BRIDGE_EBT_MARK_T_H

/* The target member is reused for adding new actions, the

 * value of the real target is -1 to -NUM_STANDARD_TARGETS.

 * For backward compatibility, the 4 lsb (2 would be enough,

 * but let's play it safe) are kept to designate this target.

 * The remaining bits designate the action. By making the set

 * action 0xfffffff0, the result will look ok for older

 * versions. [September 2006] */

#define MARK_SET_VALUE (0xfffffff0)

#define MARK_OR_VALUE  (0xffffffe0)

#define MARK_AND_VALUE (0xffffffd0)

#define MARK_XOR_VALUE (0xffffffc0)

struct ebt_mark_t_info

{

	unsigned long mark;

   const void *data, unsigned int datalen)

{

	struct ebt_mark_t_info *info = (struct ebt_mark_t_info *)data;

	int action = info->target & -16;

	if ((*pskb)->nfmark != info->mark)

	if (action == MARK_SET_VALUE)

		(*pskb)->nfmark = info->mark;

	else if (action == MARK_OR_VALUE)

		(*pskb)->nfmark |= info->mark;

	else if (action == MARK_AND_VALUE)

		(*pskb)->nfmark &= info->mark;

	else

		(*pskb)->nfmark ^= info->mark;

	return info->target;

	return info->target | -16;

}

static int ebt_target_mark_check(const char *tablename, unsigned int hookmask,

   const struct ebt_entry *e, void *data, unsigned int datalen)

{

	struct ebt_mark_t_info *info = (struct ebt_mark_t_info *)data;

	int tmp;

	if (datalen != EBT_ALIGN(sizeof(struct ebt_mark_t_info)))

		return -EINVAL;

	if (BASE_CHAIN && info->target == EBT_RETURN)

	tmp = info->target | -16;

	if (BASE_CHAIN && tmp == EBT_RETURN)

		return -EINVAL;

	CLEAR_BASE_CHAIN_BIT;

	if (INVALID_TARGET)

	if (tmp < -NUM_STANDARD_TARGETS || tmp >= 0)

		return -EINVAL;

	tmp = info->target & -16;

	if (tmp != MARK_SET_VALUE && tmp != MARK_OR_VALUE &&

	    tmp != MARK_AND_VALUE && tmp != MARK_XOR_VALUE)

		return -EINVAL;

	return 0;

}