Classes
class	RawTransport
	Class for interacting with raw sockets of the real network interface. More...

class	UdsClient
	Unix Domain Socket (UDS) client class. More...

class	UdsServer
	Unix Domain Socket (UDS) server class. More...

class	VirtualTransport
	Class for interaction with virtual network interface. More...

Functions
def	get_mac (interface_name)
	Get MAC address from the network interface. More...

def	get_l3_addresses_from_interface ()
	Get L3 addresses from the network interface. More...

def	get_l3_addresses_from_packet (packet)
	Ger L3 addresses from the data packet. More...

def	get_upper_proto_info (packet)
	Get L4 protocol ID and port from the data packet. More...

Variables
	TRANSPORT_LOG = routing_logging.create_routing_log("routing.transport.log", "transport")
	Global routing_logging.LogWrapper object for logging Transport activity. More...

int	TUNSETIFF = 0x400454ca
	Set tun interface ID. More...

int	IFF_TUN = 0x0001
	The tun interface flag. More...

int	SIOCSIFADDR = 0x8916
	Set the address of the device. More...

int	SIOCSIFNETMASK = 0x891C
	Set the network mask for a device. More...

int	SIOCSIFMTU = 0x8922
	Set the MTU (Maximum Transfer Unit) of a device. More...

int	SIOCSIFFLAGS = 0x8914
	Set the active flag word of the device. More...

int	IFF_UP = 0x1
	Interface is running flag. More...

int	SIOCGIFINDEX = 0x8933
	Retrieve the interface index of the interface. More...

int	SIOCGIFADDR = 0x8915
	Get the address of the device. More...

int	IP4_ID = 0x0800
	IPv4 protocol ID on the L2 layer. More...

int	IP6_ID = 0x86DD
	IPv6 protocol ID on the L2 layer. More...

dictionary	PROTOCOL_IDS = {"ICMP4": 1, "ICMP6": 58, "TCP": 6, "UDP": 17}
	Define protocols ID list over IP layer, according to the RFCs: https://en.wikipedia.org/wiki/List_of_IP_protocol_numbers. More...

Detailed Description

@package Transport
Created on Oct 8, 2014

@author: Dmitrii Dugaev


The Transport module is responsible for all the actual interaction with network interfaces (both virtual and real),
including frame generation, frame parsing, socket creation/closing/binding/receiving, raw packet processing, frame
filtering as well as providing methods for working with Linux networking stack via system calls.

Function Documentation

def Transport.get_l3_addresses_from_interface ( )

Get L3 addresses from the network interface.

Define a static function which will return a list of ip addresses assigned to the virtual interface (in a form of: [<ipv4 address>="">, <ipv6 address1>="">, <ipv6 address2>="">, <ipv6 addressn>="">]).

Returns: [<ipv4 address>="">, <ipv6 address1>="">, <ipv6 address2>="">, <ipv6 addressn>="">].

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def Transport.get_l3_addresses_from_packet ( packet )

Ger L3 addresses from the data packet.

Define a static function which will return src and dst L3 addresses of the given packet. For now, only IPv4 and IPv6 protocols are supported.

Parameters

packet Raw data packet received from network interface.

Returns: [src_ip, dst_ip].

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def Transport.get_mac ( interface_name )

Get MAC address from the network interface.

Define a static function which will return a mac address from the given network interface name.

Parameters

interface_name Name of the network interface.

Returns: MAC address in "xx:xx:xx:xx:xx:xx" format.

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def Transport.get_upper_proto_info ( packet )

Get L4 protocol ID and port from the data packet.

Define a static function which will return upper protocol ID and port number (if any) of the given packet. For now, only IPv4 and IPv6 protocols are supported on L3 layer, and UDP, TCP and ICMP on the upper level.

Parameters

packet Raw data packet received from network interface.

Returns: (L4 protocol name), (port number).

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Variable Documentation

Transport.IFF_TUN = 0x0001

The tun interface flag.

Transport.IFF_UP = 0x1

Interface is running flag.

Transport.IP4_ID = 0x0800

IPv4 protocol ID on the L2 layer.

Transport.IP6_ID = 0x86DD

IPv6 protocol ID on the L2 layer.

Transport.PROTOCOL_IDS = {"ICMP4": 1, "ICMP6": 58, "TCP": 6, "UDP": 17}

Define protocols ID list over IP layer, according to the RFCs: https://en.wikipedia.org/wiki/List_of_IP_protocol_numbers.

Transport.SIOCGIFADDR = 0x8915

Get the address of the device.

Transport.SIOCGIFINDEX = 0x8933

Retrieve the interface index of the interface.

Transport.SIOCSIFADDR = 0x8916

Set the address of the device.

Transport.SIOCSIFFLAGS = 0x8914

Set the active flag word of the device.

Transport.SIOCSIFMTU = 0x8922

Set the MTU (Maximum Transfer Unit) of a device.

Transport.SIOCSIFNETMASK = 0x891C

Set the network mask for a device.

Transport.TRANSPORT_LOG = routing_logging.create_routing_log("routing.transport.log", "transport")

Global routing_logging.LogWrapper object for logging Transport activity.

Transport.TUNSETIFF = 0x400454ca

Set tun interface ID.

Classes

Functions

Variables

Detailed Description

Function Documentation

Variable Documentation