#include <net.h>

Inheritance diagram for FuzzedSock:

Collaboration diagram for FuzzedSock:

Public Member Functions
	FuzzedSock (FuzzedDataProvider &fuzzed_data_provider)

	~FuzzedSock () override

FuzzedSock &	operator= (Sock &&other) override
	Move assignment operator, grab the socket from another object and close ours (if set). More...

ssize_t	Send (const void *data, size_t len, int flags) const override
	send(2) wrapper. More...

ssize_t	Recv (void *buf, size_t len, int flags) const override
	recv(2) wrapper. More...

int	Connect (const sockaddr *, socklen_t) const override
	connect(2) wrapper. More...

int	Bind (const sockaddr *, socklen_t) const override
	bind(2) wrapper. More...

int	Listen (int backlog) const override
	listen(2) wrapper. More...

std::unique_ptr< Sock >	Accept (sockaddr addr, socklen_t addr_len) const override
	accept(2) wrapper. More...

int	GetSockOpt (int level, int opt_name, void opt_val, socklen_t opt_len) const override
	getsockopt(2) wrapper. More...

int	SetSockOpt (int level, int opt_name, const void *opt_val, socklen_t opt_len) const override
	setsockopt(2) wrapper. More...

int	GetSockName (sockaddr name, socklen_t name_len) const override
	getsockname(2) wrapper. More...

bool	SetNonBlocking () const override
	Set the non-blocking option on the socket. More...

bool	IsSelectable () const override
	Check if the underlying socket can be used for `select(2)` (or the `Wait()` method). More...

bool	Wait (std::chrono::milliseconds timeout, Event requested, Event *occurred=nullptr) const override
	Wait for readiness for input (recv) or output (send). More...

bool	WaitMany (std::chrono::milliseconds timeout, EventsPerSock &events_per_sock) const override
	Same as `Wait()`, but wait on many sockets within the same timeout. More...

bool	IsConnected (std::string &errmsg) const override
	Check if still connected. More...

Public Member Functions inherited from Sock
	Sock ()=delete

	Sock (SOCKET s)
	Take ownership of an existent socket. More...

	Sock (const Sock &)=delete
	Copy constructor, disabled because closing the same socket twice is undesirable. More...

	Sock (Sock &&other)
	Move constructor, grab the socket from another object and close ours (if set). More...

virtual	~Sock ()
	Destructor, close the socket or do nothing if empty. More...

Sock &	operator= (const Sock &)=delete
	Copy assignment operator, disabled because closing the same socket twice is undesirable. More...

virtual Sock &	operator= (Sock &&other)
	Move assignment operator, grab the socket from another object and close ours (if set). More...

virtual ssize_t	Send (const void *data, size_t len, int flags) const
	send(2) wrapper. More...

virtual ssize_t	Recv (void *buf, size_t len, int flags) const
	recv(2) wrapper. More...

virtual int	Connect (const sockaddr *addr, socklen_t addr_len) const
	connect(2) wrapper. More...

virtual int	Bind (const sockaddr *addr, socklen_t addr_len) const
	bind(2) wrapper. More...

virtual int	Listen (int backlog) const
	listen(2) wrapper. More...

virtual std::unique_ptr< Sock >	Accept (sockaddr addr, socklen_t addr_len) const
	accept(2) wrapper. More...

virtual int	GetSockOpt (int level, int opt_name, void opt_val, socklen_t opt_len) const
	getsockopt(2) wrapper. More...

virtual int	SetSockOpt (int level, int opt_name, const void *opt_val, socklen_t opt_len) const
	setsockopt(2) wrapper. More...

virtual int	GetSockName (sockaddr name, socklen_t name_len) const
	getsockname(2) wrapper. More...

virtual bool	SetNonBlocking () const
	Set the non-blocking option on the socket. More...

virtual bool	IsSelectable () const
	Check if the underlying socket can be used for `select(2)` (or the `Wait()` method). More...

virtual bool	Wait (std::chrono::milliseconds timeout, Event requested, Event *occurred=nullptr) const
	Wait for readiness for input (recv) or output (send). More...

virtual bool	WaitMany (std::chrono::milliseconds timeout, EventsPerSock &events_per_sock) const
	Same as `Wait()`, but wait on many sockets within the same timeout. More...

virtual void	SendComplete (Span< const unsigned char > data, std::chrono::milliseconds timeout, CThreadInterrupt &interrupt) const
	Send the given data, retrying on transient errors. More...

virtual void	SendComplete (Span< const char > data, std::chrono::milliseconds timeout, CThreadInterrupt &interrupt) const
	Convenience method, equivalent to `SendComplete(MakeUCharSpan(data), timeout, interrupt)`. More...

virtual std::string	RecvUntilTerminator (uint8_t terminator, std::chrono::milliseconds timeout, CThreadInterrupt &interrupt, size_t max_data) const
	Read from socket until a terminator character is encountered. More...

virtual bool	IsConnected (std::string &errmsg) const
	Check if still connected. More...

bool	operator== (SOCKET s) const
	Check if the internal socket is equal to `s`. More...

Private Attributes
FuzzedDataProvider &	m_fuzzed_data_provider

std::vector< uint8_t >	m_peek_data
	Data to return when `MSG_PEEK` is used as a `Recv()` flag. More...

const bool	m_selectable
	Whether to pretend that the socket is select(2)-able. More...

Additional Inherited Members
Public Types inherited from Sock
using	Event = uint8_t

using	EventsPerSock = std::unordered_map< std::shared_ptr< const Sock >, Events, HashSharedPtrSock, EqualSharedPtrSock >
	On which socket to wait for what events in `WaitMany()`. More...

Static Public Attributes inherited from Sock
static constexpr Event	RECV = 0b001
	If passed to `Wait()`, then it will wait for readiness to read from the socket. More...

static constexpr Event	SEND = 0b010
	If passed to `Wait()`, then it will wait for readiness to send to the socket. More...

static constexpr Event	ERR = 0b100
	Ignored if passed to `Wait()`, but could be set in the occurred events if an exceptional condition has occurred on the socket or if it has been disconnected. More...

Protected Attributes inherited from Sock
SOCKET	m_socket
	Contained socket. More...

Detailed Description

Definition at line 142 of file net.h.

Constructor & Destructor Documentation

◆ FuzzedSock()

FuzzedSock::FuzzedSock ( FuzzedDataProvider & fuzzed_data_provider )

explicit

Definition at line 113 of file net.cpp.

◆ ~FuzzedSock()

FuzzedSock::~FuzzedSock ( )

override

Definition at line 120 of file net.cpp.

Member Function Documentation

◆ Accept()

std::unique_ptr< Sock > FuzzedSock::Accept	(	sockaddr *	addr,
		socklen_t *	addr_len
	)		const

overridevirtual

accept(2) wrapper.

Equivalent to std::make_unique<Sock>(accept(m_socket, addr, addr_len)). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation. The returned unique_ptr is empty if accept() failed in which case errno will be set.

Reimplemented from Sock.

Definition at line 296 of file net.cpp.

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◆ Bind()

int FuzzedSock::Bind	(	const sockaddr *	addr,
		socklen_t	addr_len
	)		const

overridevirtual

bind(2) wrapper.

Equivalent to bind(m_socket, addr, addr_len). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 257 of file net.cpp.

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◆ Connect()

int FuzzedSock::Connect	(	const sockaddr *	addr,
		socklen_t	addr_len
	)		const

overridevirtual

connect(2) wrapper.

Equivalent to connect(m_socket, addr, addrlen). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 235 of file net.cpp.

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◆ GetSockName()

int FuzzedSock::GetSockName	(	sockaddr *	name,
		socklen_t *	name_len
	)		const

overridevirtual

getsockname(2) wrapper.

Equivalent to getsockname(m_socket, name, name_len). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 342 of file net.cpp.

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◆ GetSockOpt()

int FuzzedSock::GetSockOpt	(	int	level,
		int	opt_name,
		void *	opt_val,
		socklen_t *	opt_len
	)		const

overridevirtual

getsockopt(2) wrapper.

Equivalent to getsockopt(m_socket, level, opt_name, opt_val, opt_len). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 310 of file net.cpp.

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◆ IsConnected()

bool FuzzedSock::IsConnected ( std::string & errmsg ) const

overridevirtual

Check if still connected.

Parameters

[out] errmsg The error string, if the socket has been disconnected.

Returns: true if connected

Reimplemented from Sock.

Definition at line 406 of file net.cpp.

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◆ IsSelectable()

bool FuzzedSock::IsSelectable ( ) const

overridevirtual

Check if the underlying socket can be used for select(2) (or the Wait() method).

Returns: true if selectable

Reimplemented from Sock.

Definition at line 369 of file net.cpp.

◆ Listen()

int FuzzedSock::Listen ( int backlog ) const

overridevirtual

listen(2) wrapper.

Equivalent to listen(m_socket, backlog). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 277 of file net.cpp.

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◆ operator=()

FuzzedSock & FuzzedSock::operator= ( Sock && other )

overridevirtual

Move assignment operator, grab the socket from another object and close ours (if set).

Reimplemented from Sock.

Definition at line 129 of file net.cpp.

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◆ Recv()

ssize_t FuzzedSock::Recv	(	void *	buf,
		size_t	len,
		int	flags
	)		const

overridevirtual

recv(2) wrapper.

Equivalent to recv(m_socket, buf, len, flags);. Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 167 of file net.cpp.

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◆ Send()

ssize_t FuzzedSock::Send	(	const void *	data,
		size_t	len,
		int	flags
	)		const

overridevirtual

send(2) wrapper.

Equivalent to send(m_socket, data, len, flags);. Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 135 of file net.cpp.

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◆ SetNonBlocking()

bool FuzzedSock::SetNonBlocking ( ) const

overridevirtual

Set the non-blocking option on the socket.

Returns: true if set successfully

Reimplemented from Sock.

Definition at line 356 of file net.cpp.

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◆ SetSockOpt()

int FuzzedSock::SetSockOpt	(	int	level,
		int	opt_name,
		const void *	opt_val,
		socklen_t	opt_len
	)		const

overridevirtual

setsockopt(2) wrapper.

Equivalent to setsockopt(m_socket, level, opt_name, opt_val, opt_len). Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock implementation.

Reimplemented from Sock.

Definition at line 329 of file net.cpp.

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◆ Wait()

bool FuzzedSock::Wait	(	std::chrono::milliseconds	timeout,
		Event	requested,
		Event *	occurred = `nullptr`
	)		const

overridevirtual

Wait for readiness for input (recv) or output (send).

Parameters

[in]	timeout	Wait this much for at least one of the requested events to occur.
[in]	requested	Wait for those events, bitwise-or of `RECV` and `SEND`.
[out]	occurred	If not nullptr and the function returns `true`, then this indicates which of the requested events occurred (`ERR` will be added, even if not requested, if an exceptional event occurs on the socket). A timeout is indicated by return value of `true` and `occurred` being set to 0.

Returns: true on success (or timeout, if occurred of 0 is returned), false otherwise

Reimplemented from Sock.

Definition at line 374 of file net.cpp.

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◆ WaitMany()

bool FuzzedSock::WaitMany	(	std::chrono::milliseconds	timeout,
		EventsPerSock &	events_per_sock
	)		const

overridevirtual

Same as Wait(), but wait on many sockets within the same timeout.

Parameters

[in]	timeout	Wait this long for at least one of the requested events to occur.
[in,out]	events_per_sock	Wait for the requested events on these sockets and set `occurred` for the events that actually occurred.

Returns: true on success (or timeout, if all what[].occurred are returned as 0), false otherwise

Reimplemented from Sock.

Definition at line 394 of file net.cpp.

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Member Data Documentation

◆ m_fuzzed_data_provider

FuzzedDataProvider& FuzzedSock::m_fuzzed_data_provider

private

Definition at line 144 of file net.h.

◆ m_peek_data

std::vector<uint8_t> FuzzedSock::m_peek_data

mutableprivate

Data to return when MSG_PEEK is used as a Recv() flag.

If MSG_PEEK is used, then our Recv() returns some random data as usual, but on the next Recv() call we must return the same data, thus we remember it here.

Definition at line 151 of file net.h.

◆ m_selectable

const bool FuzzedSock::m_selectable

private

Whether to pretend that the socket is select(2)-able.

This is randomly set in the constructor. It should remain constant so that repeated calls to IsSelectable() return the same value.

Definition at line 158 of file net.h.

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

src/test/fuzz/util/net.h
src/test/fuzz/util/net.cpp

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FuzzedSock()

◆ ~FuzzedSock()

Member Function Documentation

◆ Accept()

◆ Bind()

◆ Connect()

◆ GetSockName()

◆ GetSockOpt()

◆ IsConnected()

◆ IsSelectable()

◆ Listen()

◆ operator=()

◆ Recv()

◆ Send()

◆ SetNonBlocking()

◆ SetSockOpt()

◆ Wait()

◆ WaitMany()

Member Data Documentation

◆ m_fuzzed_data_provider

◆ m_peek_data

◆ m_selectable