Myra::L3_IPv4 Namespace Reference

Layer 3 is IPv4. More...

Classes
struct	Header
	Layer 3 IPv4 header. More...

Typedefs
typedef L3_IP::Protocol	Protocol
	Pull into L3_IPv4 the IP protocol declaration to use in L3_IPv4::Header::protocol. More...

Functions
const Header *	get_header (const uint8_t *ptr)
	Get the L3_IPv4 header. More...
const Header *	get_header (const L2::Header *l2)
	Get the L3_IPv4 header. More...
Protocol	get_protocol (const Header *header)
	Get the protocol from the header to determine how to interpret layer 4. More...
int	get_version (const Header *header)
	Get the high 4 bits from Header::ver_and_ihl. More...
int	get_ihl (const Header *header)
	Get the low 4 bits from Header::ver_and_ihl. More...
uint16_t	get_header_length (const Header *header)
	32 bit words, but 8 bits per byte. More...
uint16_t	get_total_length (const Header *header)
	Get the total length of layer 3+. More...
uint16_t	get_payload_length (const Header *header)
	Number of bytes in layer 4+. More...
const uint8_t *	get_L4_pointer (const Header *header)
	Get a pointer to the start of layer 4. More...
bool	is_known_protocol (const Header *header)
	Determine if the protocol is a known value. More...
bool	is_unknown_protocol (const Header *header)
	Determine if the protocol is unknown. More...
std::string	to_string (const Protocol &proto)
	Return a simple text string that represents the IP protocol name. More...
bool	protocol_is_ICMP (const Protocol &protocol)
	Determine if a packet's layer 4 is UDP. More...
bool	protocol_is_ICMP (const L3_IPv4::Header *l3)
	Determine if a packet's layer 4 is UDP. More...
bool	protocol_is_TCP (const Protocol &protocol)
	Determine if a packet's layer 4 is TCP. More...
bool	protocol_is_TCP (const L3_IPv4::Header *l3)
	Determine if a packet's layer 4 is TCP. More...
bool	protocol_is_UDP (const Protocol &protocol)
	Determine if a packet's layer 4 is UDP. More...
bool	protocol_is_UDP (const L3_IPv4::Header *l3)
	Determine if a packet's layer 4 is UDP. More...

Detailed Description

Layer 3 is IPv4.

See also

L3_IP

Typedef Documentation

typedef L3_IP::Protocol Myra::L3_IPv4::Protocol

Pull into L3_IPv4 the IP protocol declaration to use in L3_IPv4::Header::protocol.

Function Documentation

const Header* Myra::L3_IPv4::get_header ( const uint8_t *  ptr )

inline

Get the L3_IPv4 header.

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const Header* Myra::L3_IPv4::get_header ( const L2::Header *  l2 )

inline

Get the L3_IPv4 header.

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uint16_t Myra::L3_IPv4::get_header_length ( const Header *  header )

inline

32 bit words, but 8 bits per byte.

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int Myra::L3_IPv4::get_ihl ( const Header *  header )

inline

Get the low 4 bits from Header::ver_and_ihl.

See also

L3_IPv4::get_header_length()

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const uint8_t* Myra::L3_IPv4::get_L4_pointer ( const Header *  header )

inline

Get a pointer to the start of layer 4.

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uint16_t Myra::L3_IPv4::get_payload_length ( const Header *  header )

inline

Number of bytes in layer 4+.

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Protocol Myra::L3_IPv4::get_protocol ( const Header *  header )

inline

Get the protocol from the header to determine how to interpret layer 4.

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uint16_t Myra::L3_IPv4::get_total_length ( const Header *  header )

inline

Get the total length of layer 3+.

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int Myra::L3_IPv4::get_version ( const Header *  header )

inline

Get the high 4 bits from Header::ver_and_ihl.

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bool Myra::L3_IPv4::is_known_protocol ( const Header *  header )

inline

Determine if the protocol is a known value.

See also

L3_IP::is_known_protocol()

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bool Myra::L3_IPv4::is_unknown_protocol ( const Header *  header )

inline

Determine if the protocol is unknown.

See also

L3_IP::is_unknown_protocol()

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bool Myra::L3_IPv4::protocol_is_ICMP ( const Protocol &  protocol )

inline

Determine if a packet's layer 4 is UDP.

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bool Myra::L3_IPv4::protocol_is_ICMP ( const L3_IPv4::Header *  l3 )

inline

Determine if a packet's layer 4 is UDP.

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bool Myra::L3_IPv4::protocol_is_TCP ( const Protocol &  protocol )

inline

Determine if a packet's layer 4 is TCP.

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bool Myra::L3_IPv4::protocol_is_TCP ( const L3_IPv4::Header *  l3 )

inline

Determine if a packet's layer 4 is TCP.

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bool Myra::L3_IPv4::protocol_is_UDP ( const Protocol &  protocol )

inline

Determine if a packet's layer 4 is UDP.

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bool Myra::L3_IPv4::protocol_is_UDP ( const L3_IPv4::Header *  l3 )

inline

Determine if a packet's layer 4 is UDP.

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std::string Myra::L3_IPv4::to_string ( const Protocol &  proto )

inline

Return a simple text string that represents the IP protocol name.

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