The Hull is the base class for both the client and server. More...

#include "Hull.hpp"

Inheritance diagram for EPS::Hull:

Collaboration diagram for EPS::Hull:

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Public Member Functions
	Hull (const EPS::EMode m, int argc, char **argv)
	Constructor. More...

virtual	~Hull (void)
	Destructor. More...

void	stop_asio (void)
	Attempt to cleanly shutdown/close all ASIO activity. More...

void	start_signal_handling (void)
	Start/initialize the signal handling for the hull. More...

void	get_uuid (void)
	Get the UUID from the configuration file, or generate a new one if necessary. More...

void	save_uuid (void)
	Save the UUID into the configuration file. More...

void	write_blank_configuration_file (void)
	Create a new blank configuration file template with helpful comments. More...

void	read_configuration_file (void)
	Read, parse, and store the configuration file. More...

void	parse_options (void)
	Parse command-line options. More...

void	run_first_stage (void)
	Called by main() to setup exception handling and calls run_second_stage(). More...

void	setup_encryption_and_decryption (void)
	Initialize what we need for OpenSSL encryption/decryption. More...

virtual void	run_second_stage (void)=0
	Pure virtual to run EPS. More...

void	readComm (const EPS::TConnPtr &connection)
	Read (async) a communication command from the peer and act on it. More...

virtual void	processComm (const EPS::TConnPtr &connection, EPS::NetBuffer *nb)
	Process a communication command that has already been read by readComm(). More...

virtual void	processComm (const EPS::TConnPtr &connection, EPS::NetBuffer nb, const EPS::CommHeader1 header, const EPS::ECommType type)=0
	Derived classes can use this method to get a callback when a communication command is received. More...

void	start_connect_timer (void)
	See if we have peers to which we want to connect. More...

void	send_stats (void)
	Send the latest statistics to the server. More...

void	start_stats_timer (void)
	Start an asynchronous wait on the stats timer. More...

void	setup_listener (void)
	Setup socket listener. More...

void	start_async_accept (void)
	Make the necessary calls to asynchronously accept a new TCP beam. More...


virtual void	connection_failed (const EPS::TConnPtr &connection)=0
	Callback when a connection has failed and needs to be cleaned up. More...

virtual void	connection_failed (EPS::TCPConnection *connection)
	Callback when a connection has failed and needs to be cleaned up. More...


void	validate_new_connection (const EPS::TConnPtr &connection)
	Exchange information and validate connection to peer. More...

void	validate_new_connection (EPS::TCPConnection *connection)
	Exchange information and validate connection to peer. More...

void	async_write (const EPS::TConnPtr &connection, EPS::NetBuffer *nb)
	Asynchronous write of the buffer. More...

void	async_write (const EPS::TConnPtr &connection)
	Exchange information and validate connection to peer. More...

Static Public Member Functions
static Hull &	get (void)
	Returns the single instance of Hull, which is at time necessary since the asio service_io is part of the hull. More...

Public Attributes
const EPS::EMode	mode
	client or server mode More...

const std::string	mode_string
	client or server mode string More...

bool	done
	EPS will exit when this is set to `TRUE` More...

int	signal_number
	set by the signal handler for logging purposes if a fatal signal is raised More...

int	ac
	argc More...

char **	av
	argv More...

const std::chrono::seconds	seconds_between_retries

EC	ec
	boost error code More...

EPS::StrMap	configuration
	the content of the configuration file More...

UUID	uuid
	uuid for this EPS instance More...

boost::asio::io_service	io_service
	boost::asio's link to the operating system's I/O services More...

boost::asio::signal_set	signal_set
	register (through asio) for signal handling More...

boost::asio::ip::tcp::resolver	tcp_resolver
	tcp resolver for async name resolution More...

boost::asio::ip::tcp::acceptor	acceptor
	accept incoming client connections More...

EPS::IPv4	address
	EPS address, e.g. 192.168.43.12. More...

EPS::IPv4	network
	EPS network, e.g. 192.168.43.0. More...

EPS::IPv4	netmask
	EPS netmask, e.g. 255.255.255.0. More...

EPS::Tracker	tracker
	keep track of all clients, uuids, and ip addresses More...

EPS::IPv4Set	local_addresses
	set of all interesting local addresses More...

boost::asio::system_timer	connect_timer
	see if we have new connections to establish to create the mesh More...

boost::asio::system_timer	stats_timer
	statistics timer which is triggered every 60 seconds More...

EPS::Stats	stats
	statistics are updated every minute when stats_timer expires More...

IPv4Vec	ipv4_pool
	pool of available addresses to give to clients More...

EPS::UUIDSet	pending_uuids
	set of UUIDs to which we'd like to connect More...

EPS::TCPConns	server_conns
	server connections More...

time_t	start_time
	when EPS was started More...


boost::asio::system_timer	upnp_renew_timer
	UPnP information. More...

EPS::IPv4	upnp_lan_address
	LAN ip address according to UPnP. More...

EPS::IPv4	upnp_wan_address
	WAN ip address according to UPnP. More...

uint16_t	upnp_wan_port
	port opened up on WAN side of UPnP device More...

UPNPDev *	upnp_dev
	structure used by libminiupnpc More...

UPNPUrls	upnp_urls
	structure used by libminiupnpc More...

IGDdatas	upnp_data
	structure used by libminiupnpc More...

Static Public Attributes

static std::string	addr = ""
	Configuration item read from CLI or eps.conf file. More...

static uint16_t	port = 0
	TCP/UDP port to which we'll connect. More...

static std::string	network_str = ""
	network (with optional mask) to create for the EPS conduit network More...

static std::string	scorecard = ""
	filename of the scorecard where stats are written More...

static bool	sequential = false
	should IP addresses be assigned in a sequential manner to new clients More...

static std::string	conf_filename = "/etc/eps.conf"
	name of the configuration file More...

static std::string	log_filename = ""
	name of the file to which log entries will be written More...

static std::string	gv_filename = ""
	name of the graphviz network diagram file More...

static bool	upnp_enabled = false
	whether UPnP is enabled/disabled More...

static int	upnp_timeout = 1000
	number of seconds to wait for UPnP (or -1 to disable) More...

Detailed Description

The Hull is the base class for both the client and server.

See also: EPS::ClientHull; EPS::ServerHull

Constructor & Destructor Documentation

◆ Hull()

EPS::Hull::Hull	(	const EPS::EMode	m,
		int	argc,
		char **	argv
	)

Constructor.

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◆ ~Hull()

EPS::Hull::~Hull ( void )

virtual

Destructor.

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Member Function Documentation

◆ async_write() [1/2]

void EPS::Hull::async_write	(	const EPS::TConnPtr &	connection,
		EPS::NetBuffer *	nb
	)

Asynchronous write of the buffer.

The de-allocation of the NetBuffer parameter will be handled by this method once the write has completed. The NetBuffer must not be modified after this method is called.

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◆ async_write() [2/2]

void EPS::Hull::async_write ( const EPS::TConnPtr & connection )

Exchange information and validate connection to peer.

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◆ connection_failed() [1/2]

virtual void EPS::Hull::connection_failed ( const EPS::TConnPtr & connection )

pure virtual

Callback when a connection has failed and needs to be cleaned up.

Implemented in EPS::ServerHull, and EPS::ClientHull.

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◆ connection_failed() [2/2]

void EPS::Hull::connection_failed ( EPS::TCPConnection * connection )

virtual

Callback when a connection has failed and needs to be cleaned up.

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◆ get()

EPS::Hull & EPS::Hull::get ( void )

static

Returns the single instance of Hull, which is at time necessary since the asio service_io is part of the hull.

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◆ get_uuid()

void EPS::Hull::get_uuid ( void )

Get the UUID from the configuration file, or generate a new one if necessary.

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◆ parse_options()

void EPS::Hull::parse_options ( void )

Parse command-line options.

For historical reasons, not all of the configuration settings are read/parsed using boost::program_options. For example, see the UUID values as well as cipher_iv and cipher_key in EPS::Hull::read_configuration_file().

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◆ processComm() [1/2]

void EPS::Hull::processComm	(	const EPS::TConnPtr &	connection,
		EPS::NetBuffer *	nb
	)

virtual

Process a communication command that has already been read by readComm().

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◆ processComm() [2/2]

virtual void EPS::Hull::processComm	(	const EPS::TConnPtr &	connection,
		EPS::NetBuffer *	nb,
		const EPS::CommHeader1 *	header,
		const EPS::ECommType	type
	)

pure virtual

Derived classes can use this method to get a callback when a communication command is received.

Implemented in EPS::ServerHull, and EPS::ClientHull.

◆ read_configuration_file()

void EPS::Hull::read_configuration_file ( void )

Read, parse, and store the configuration file.

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◆ readComm()

void EPS::Hull::readComm ( const EPS::TConnPtr & connection )

Read (async) a communication command from the peer and act on it.

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◆ run_first_stage()

void EPS::Hull::run_first_stage ( void )

Called by main() to setup exception handling and calls run_second_stage().

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◆ run_second_stage()

virtual void EPS::Hull::run_second_stage ( void )

pure virtual

Pure virtual to run EPS.

See also: EPS::ClientHull::run_second_stage(); EPS::ServerHull::run_second_stage()

Implemented in EPS::ServerHull, and EPS::ClientHull.

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◆ save_uuid()

void EPS::Hull::save_uuid ( void )

Save the UUID into the configuration file.

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◆ send_stats()

void EPS::Hull::send_stats ( void )

Send the latest statistics to the server.

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◆ setup_encryption_and_decryption()

void EPS::Hull::setup_encryption_and_decryption ( void )

Initialize what we need for OpenSSL encryption/decryption.

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◆ setup_listener()

void EPS::Hull::setup_listener ( void )

Setup socket listener.

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◆ start_async_accept()

void EPS::Hull::start_async_accept ( void )

Make the necessary calls to asynchronously accept a new TCP beam.

Todo:: fixme: even if the pool is empty, if this client has a reserved ip address we still need to accept it

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◆ start_connect_timer()

void EPS::Hull::start_connect_timer ( void )

See if we have peers to which we want to connect.

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◆ start_signal_handling()

void EPS::Hull::start_signal_handling ( void )

Start/initialize the signal handling for the hull.

Todo:: define our own error category derived from error_category

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◆ start_stats_timer()

void EPS::Hull::start_stats_timer ( void )

Start an asynchronous wait on the stats timer.

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◆ stop_asio()

void EPS::Hull::stop_asio ( void )

Attempt to cleanly shutdown/close all ASIO activity.

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◆ validate_new_connection() [1/2]

void EPS::Hull::validate_new_connection ( const EPS::TConnPtr & connection )

Exchange information and validate connection to peer.

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◆ validate_new_connection() [2/2]

void EPS::Hull::validate_new_connection ( EPS::TCPConnection * connection )

Exchange information and validate connection to peer.

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◆ write_blank_configuration_file()

void EPS::Hull::write_blank_configuration_file ( void )

Create a new blank configuration file template with helpful comments.

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Member Data Documentation

◆ ac

int EPS::Hull::ac

argc

◆ acceptor

boost::asio::ip::tcp::acceptor EPS::Hull::acceptor

accept incoming client connections

◆ addr

std::string EPS::Hull::addr = ""

static

Configuration item read from CLI or eps.conf file.

name or ip address to which the client will connect

See also: --server

◆ address

EPS::IPv4 EPS::Hull::address

EPS address, e.g. 192.168.43.12.

◆ av

char** EPS::Hull::av

argv

◆ conf_filename

std::string EPS::Hull::conf_filename = "/etc/eps.conf"

static

name of the configuration file

See also: --conf

◆ configuration

EPS::StrMap EPS::Hull::configuration

the content of the configuration file

◆ connect_timer

boost::asio::system_timer EPS::Hull::connect_timer

see if we have new connections to establish to create the mesh

See also: pending_uuids

◆ done

bool EPS::Hull::done

EPS will exit when this is set to TRUE

◆ ec

EC EPS::Hull::ec

boost error code

◆ gv_filename

std::string EPS::Hull::gv_filename = ""

static

name of the graphviz network diagram file

See also: --graphviz

◆ io_service

boost::asio::io_service EPS::Hull::io_service

boost::asio's link to the operating system's I/O services

◆ ipv4_pool

IPv4Vec EPS::Hull::ipv4_pool

pool of available addresses to give to clients

◆ local_addresses

EPS::IPv4Set EPS::Hull::local_addresses

set of all interesting local addresses

◆ log_filename

std::string EPS::Hull::log_filename = ""

static

name of the file to which log entries will be written

See also: --log

◆ mode

const EPS::EMode EPS::Hull::mode

client or server mode

◆ mode_string

const std::string EPS::Hull::mode_string

client or server mode string

See also: EPS::mode_to_string()

◆ netmask

EPS::IPv4 EPS::Hull::netmask

EPS netmask, e.g. 255.255.255.0.

◆ network

EPS::IPv4 EPS::Hull::network

EPS network, e.g. 192.168.43.0.

◆ network_str

std::string EPS::Hull::network_str = ""

static

network (with optional mask) to create for the EPS conduit network

See also: --network

◆ pending_uuids

EPS::UUIDSet EPS::Hull::pending_uuids

set of UUIDs to which we'd like to connect

See also: connect_timer

◆ port

uint16_t EPS::Hull::port = 0

static

TCP/UDP port to which we'll connect.

See also: --port

◆ scorecard

std::string EPS::Hull::scorecard = ""

static

filename of the scorecard where stats are written

See also: --scorecard

◆ seconds_between_retries

const std::chrono::seconds EPS::Hull::seconds_between_retries

◆ sequential

bool EPS::Hull::sequential = false

static

should IP addresses be assigned in a sequential manner to new clients

See also: --sequential

◆ server_conns

EPS::TCPConns EPS::Hull::server_conns

server connections

◆ signal_number

int EPS::Hull::signal_number

set by the signal handler for logging purposes if a fatal signal is raised

◆ signal_set

boost::asio::signal_set EPS::Hull::signal_set

register (through asio) for signal handling

◆ start_time

time_t EPS::Hull::start_time

when EPS was started

◆ stats

EPS::Stats EPS::Hull::stats

statistics are updated every minute when stats_timer expires

◆ stats_timer

boost::asio::system_timer EPS::Hull::stats_timer

statistics timer which is triggered every 60 seconds

◆ tcp_resolver

boost::asio::ip::tcp::resolver EPS::Hull::tcp_resolver

tcp resolver for async name resolution

◆ tracker

EPS::Tracker EPS::Hull::tracker

keep track of all clients, uuids, and ip addresses

◆ upnp_data

IGDdatas EPS::Hull::upnp_data

structure used by libminiupnpc

◆ upnp_dev

UPNPDev* EPS::Hull::upnp_dev

structure used by libminiupnpc

◆ upnp_enabled

bool EPS::Hull::upnp_enabled = false

static

whether UPnP is enabled/disabled

See also: --upnptimeout

◆ upnp_lan_address

EPS::IPv4 EPS::Hull::upnp_lan_address

LAN ip address according to UPnP.

◆ upnp_renew_timer

boost::asio::system_timer EPS::Hull::upnp_renew_timer

UPnP information.

timer used to regularly attempt to renew any UPnP port mappings

◆ upnp_timeout

int EPS::Hull::upnp_timeout = 1000

static

number of seconds to wait for UPnP (or -1 to disable)

in milliseconds

See also: --upnptimeout

◆ upnp_urls

UPNPUrls EPS::Hull::upnp_urls

structure used by libminiupnpc

◆ upnp_wan_address

EPS::IPv4 EPS::Hull::upnp_wan_address

WAN ip address according to UPnP.

◆ upnp_wan_port

uint16_t EPS::Hull::upnp_wan_port

port opened up on WAN side of UPnP device

◆ uuid

UUID EPS::Hull::uuid

uuid for this EPS instance

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Hull()

◆ ~Hull()

Member Function Documentation

◆ async_write() [1/2]

◆ async_write() [2/2]

◆ connection_failed() [1/2]

◆ connection_failed() [2/2]

◆ get()

◆ get_uuid()

◆ parse_options()

◆ processComm() [1/2]

◆ processComm() [2/2]

◆ read_configuration_file()

◆ readComm()

◆ run_first_stage()

◆ run_second_stage()

◆ save_uuid()

◆ send_stats()

◆ setup_encryption_and_decryption()

◆ setup_listener()

◆ start_async_accept()

◆ start_connect_timer()

◆ start_signal_handling()

◆ start_stats_timer()

◆ stop_asio()

◆ validate_new_connection() [1/2]

◆ validate_new_connection() [2/2]

◆ write_blank_configuration_file()

Member Data Documentation

◆ ac

◆ acceptor

◆ addr

◆ address

◆ av

◆ conf_filename

◆ configuration

◆ connect_timer

◆ done

◆ ec

◆ gv_filename

◆ io_service

◆ ipv4_pool

◆ local_addresses

◆ log_filename

◆ mode

◆ mode_string

◆ netmask

◆ network

◆ network_str

◆ pending_uuids

◆ port

◆ scorecard

◆ seconds_between_retries

◆ sequential

◆ server_conns

◆ signal_number

◆ signal_set

◆ start_time

◆ stats

◆ stats_timer

◆ tcp_resolver

◆ tracker

◆ upnp_data

◆ upnp_dev

◆ upnp_enabled

◆ upnp_lan_address

◆ upnp_renew_timer

◆ upnp_timeout

◆ upnp_urls

◆ upnp_wan_address

◆ upnp_wan_port

◆ uuid