Universal 32-bit Classifier

Collaboration diagram for Universal 32-bit Classifier:

Attribute Modifications
void	rtnl_u32_set_handle (struct rtnl_cls *cls, int htid, int hash, int nodeid)
int	rtnl_u32_set_classid (struct rtnl_cls *cls, uint32_t classid)

Selector Modifications
int	rtnl_u32_set_flags (struct rtnl_cls *cls, int flags)
int	rtnl_u32_add_key (struct rtnl_cls *cls, uint32_t val, uint32_t mask, int off, int offmask)
	Append new 32-bit key to the selector. More...
int	rtnl_u32_add_key_uint8 (struct rtnl_cls *cls, uint8_t val, uint8_t mask, int off, int offmask)
int	rtnl_u32_add_key_uint16 (struct rtnl_cls *cls, uint16_t val, uint16_t mask, int off, int offmask)
	Append new selector key to match a 16-bit number. More...
int	rtnl_u32_add_key_uint32 (struct rtnl_cls *cls, uint32_t val, uint32_t mask, int off, int offmask)
	Append new selector key to match a 32-bit number. More...
int	rtnl_u32_add_key_in_addr (struct rtnl_cls *cls, struct in_addr *addr, uint8_t bitmask, int off, int offmask)
int	rtnl_u32_add_key_in6_addr (struct rtnl_cls *cls, struct in6_addr *addr, uint8_t bitmask, int off, int offmask)

Detailed Description

Function Documentation

int rtnl_u32_add_key	(	struct rtnl_cls *	cls,
		uint32_t	val,
		uint32_t	mask,
		int	off,
		int	offmask
	)

Append new 32-bit key to the selector.

• cls classifier to be modifier
• val value to be matched (network byte-order)
• mask mask to be applied before matching (network byte-order)
• off offset, in bytes, to start matching
• offmask offset mask

General selectors define the pattern, mask and offset the pattern will be matched to the packet contents. Using the general selectors you can match virtually any single bit in the IP (or upper layer) header.

References rtnl_u32::cu_mask, rtnl_u32::cu_selector, tc_u32_sel::keys, mask, tc_u32_key::mask, tc_u32_sel::nkeys, nl_data_append(), NLE_NOMEM, NULL, tc_u32_key::off, tc_u32_key::offmask, rtnl_cls_data(), and tc_u32_key::val.

Referenced by rtnl_u32_add_key_in6_addr(), rtnl_u32_add_key_in_addr(), rtnl_u32_add_key_uint16(), rtnl_u32_add_key_uint32(), and rtnl_u32_add_key_uint8().

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int rtnl_u32_add_key_in6_addr	(	struct rtnl_cls *	cls,
		struct in6_addr *	addr,
		uint8_t	bitmask,
		int	off,
		int	offmask
	)

References mask, and rtnl_u32_add_key().

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int rtnl_u32_add_key_in_addr	(	struct rtnl_cls *	cls,
		struct in_addr *	addr,
		uint8_t	bitmask,
		int	off,
		int	offmask
	)

References mask, and rtnl_u32_add_key().

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int rtnl_u32_add_key_uint16	(	struct rtnl_cls *	cls,
		uint16_t	val,
		uint16_t	mask,
		int	off,
		int	offmask
	)

Append new selector key to match a 16-bit number.

• cls classifier to be modified
• val value to be matched (host byte-order)
• mask mask to be applied before matching (host byte-order)
• off offset, in bytes, to start matching
• offmask offset mask

References NLE_INVAL, and rtnl_u32_add_key().

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int rtnl_u32_add_key_uint32	(	struct rtnl_cls *	cls,
		uint32_t	val,
		uint32_t	mask,
		int	off,
		int	offmask
	)

Append new selector key to match a 32-bit number.

• cls classifier to be modified
• val value to be matched (host byte-order)
• mask mask to be applied before matching (host byte-order)
• off offset, in bytes, to start matching
• offmask offset mask

References rtnl_u32_add_key().

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int rtnl_u32_add_key_uint8	(	struct rtnl_cls *	cls,
		uint8_t	val,
		uint8_t	mask,
		int	off,
		int	offmask
	)

References rtnl_u32_add_key().

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int rtnl_u32_set_classid	(	struct rtnl_cls *	cls,
		uint32_t	classid
	)

References rtnl_u32::cu_classid, rtnl_u32::cu_mask, and rtnl_cls_data().

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int rtnl_u32_set_flags	(	struct rtnl_cls *	cls,
		int	flags
	)

References rtnl_u32::cu_mask, tc_u32_sel::flags, flags, NLE_NOMEM, and rtnl_cls_data().

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void rtnl_u32_set_handle	(	struct rtnl_cls *	cls,
		int	htid,
		int	hash,
		int	nodeid
	)

References tca_set_handle().

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