Runs Connection's bounded raw-byte scripts as HTTP/2 frames over the real in-process TLS transport. More...

#include <h2_origin_mock_server.h>

Inheritance diagram for proto_fuzzer::H2OriginMockServer:

Public Member Functions
	H2OriginMockServer (curl::fuzzer::proto::TlsCertificateChainProfile certificate_chain=curl::fuzzer::proto::TLS_CERTIFICATE_CHAIN_DEFAULT_EC, curl::fuzzer::proto::TlsGroupProfile group_profile=curl::fuzzer::proto::TLS_GROUP_X25519)
	Construct an HTTP/2 TLS peer with the selected certificate chain.
void	Install (CURL *easy) override
	Keep transport selection out of the mutation grammar.
const H2Runtime &	runtime () const
	Expose shared protocol observations without allowing carrier state changes.
std::size_t	cleaned_push_count () const
Public Member Functions inherited from proto_fuzzer::TlsMockServer
	TlsMockServer ()
	Build one reusable in-process server context per fuzz iteration.
	TlsMockServer (curl::fuzzer::proto::TlsCertificateChainProfile certificate_chain, curl::fuzzer::proto::TlsHandshakeProfile handshake_profile=curl::fuzzer::proto::TLS_HANDSHAKE_DEFAULT)
	Select one bounded certificate-chain profile for an HTTP/1.1 TLS peer.
	~TlsMockServer () override
	Release SSL objects before their owning server context.
void	Install (CURL *easy) override
	Install common socket callbacks and a stable local trust anchor.
bool	saw_live_tls_session () const
std::size_t	exported_session_count () const
std::size_t	imported_session_count () const
int	negotiated_tls_version () const
std::size_t	completed_handshake_count () const
std::size_t	reused_session_count () const
std::size_t	write_retry_count () const
std::string	negotiated_alpn () const
std::string	negotiated_group () const
int	ech_status () const
std::string	ech_inner_name () const
std::string	ech_outer_name () const
Public Member Functions inherited from proto_fuzzer::MockServer
	MockServer (MultiDrivePolicy drive_policy=MultiDrivePolicy::kPerform)
	Construct an idle MockServer with no scripted responses or open peers.
	~MockServer () override
	Default destructor; current and previous MockConnections clean up their server-side descriptors only after curl has been removed from the multi.
void	SetScripts (const curl::fuzzer::proto::Scenario &scenario)
	Build the complete borrowed script table before entering curl.
void	SetKeepConnectionsOpen (bool keep_open)
	Keep completed response sockets writable instead of half-closing them.
CURLcode	DriveEasyScenario (CURL *easy, const curl::fuzzer::proto::Scenario &scenario, bool use_events=false) override
	Preload all bounded response bytes from inside OPENSOCKETFUNCTION, where the mock still owns both socketpair ends, and half-close the peer when the preload finishes.
ConnectOnlyRunStats	DriveConnectOnlyScenario (CURL *easy, const curl::fuzzer::proto::Scenario &scenario) override
	Establish only the HTTP transport, then pass bounded application bytes through curl's public direct-I/O wrappers.
bool	DeliverNextChunk ()
	Push the next queued chunk.
bool	has_more_chunks () const
bool	ServiceConnections ()
	Service one deterministic application event-loop turn by draining all available request bytes and releasing at most one response chunk.
std::size_t	opened_connection_count () const
	Report how many peer sockets curl opened during the current script run.
Public Member Functions inherited from proto_fuzzer::MockServerBase
virtual	~MockServerBase ()
	Out-of-line destructor so MockConnection can stay forward-declared in the base header (its complete type is only needed where unique_ptr is instantiated for destruction).
virtual void	ObserveState ()
	Default no-op for peers without protocol-specific observations.
virtual void	ConfigureRequestData (ScenarioRequestData *request_data)
	Bind protocol-specific work to the request-data callbacks after their per-scenario state has been constructed.
CURLcode	DriveScenario (CURL *easy, const curl::fuzzer::proto::Scenario &scenario)
	Run 'scenario' to completion on 'easy': allocate a multi, attach 'easy', delegate protocol-specific work to RunLoop, consume its completion message, and clean up.
void	SetMultiObserver (MultiObserver observer)
	Register an observer invoked with the live multi handle after 'easy' is attached and before the drive loop starts.
MockConnection *	connection ()

Protected Member Functions
std::unique_ptr< MockConnection >	CreateConnection () override
	Attach the reusable H2 client-frame tracker after TLS decryption.
void	RunLoop (CURLM multi, CURL easy, const curl::fuzzer::proto::Scenario &scenario) override
	Run the raw HTTP/2 response driver and probe server push and upkeep APIs.
void	HandleDetachedMulti (CurlMultiPtr multi) override
	Keep the connection cache alive until this mock is destroyed, after the caller has cleaned the detached easy handle.
Protected Member Functions inherited from proto_fuzzer::TlsMockServer
	TlsMockServer (TlsApplicationProtocol protocol, curl::fuzzer::proto::TlsCertificateChainProfile certificate_chain=curl::fuzzer::proto::TLS_CERTIFICATE_CHAIN_DEFAULT_EC, TlsGroupPolicy group_policy=TlsGroupPolicy::kProviderDefault, curl::fuzzer::proto::TlsHandshakeProfile handshake_profile=curl::fuzzer::proto::TLS_HANDSHAKE_DEFAULT)
	Construct the shared TLS transport for a protocol-specific derived peer with one fixed ALPN outcome.
TlsGroupPolicy	group_policy () const
std::unique_ptr< MockConnection >	CreateConnection () override
	Wrap one socketpair server endpoint in an OpenSSL acceptor consumed by MockServer.
void	ObserveActiveTransfer (CURL *easy) override
	Query while the connection filters are attached.
Protected Member Functions inherited from proto_fuzzer::MockServer
void	ResetConnections ()
	Release all current and retired socketpairs before resetting transport- specific state.
virtual bool	SupportsRepeatedPollsetProbe () const
	Ordinary HTTP and compatibility peers retain the historical perform-only loop even if an append-only scenario field is present.
curl_socket_t	HandleOpenSocket (curlsocktype purpose=CURLSOCKTYPE_IPCXN, struct curl_sockaddr *address=nullptr) override
	Called by the OPENSOCKETFUNCTION trampoline in the base class.
void	RunLoop (CURLM multi, CURL easy, const curl::fuzzer::proto::Scenario &scenario) override
	Seed the mock from the scenario, then drive the perform loop until curl is done or a deterministic operation/idle budget is hit.
Protected Member Functions inherited from proto_fuzzer::MockServerBase
	MockServerBase (MultiDrivePolicy drive_policy=MultiDrivePolicy::kPerform)
	Construct an empty base instance with a fixed multi-drive policy.
virtual SocketSetupDisposition	GetSocketSetupDisposition (curl_socket_t curlfd, curlsocktype purpose) const
	Describe the socket returned by HandleOpenSocket without issuing native descriptor queries.
MultiSocketDriver *	multi_socket_driver ()
	Expose the callback state installed for the current socket-action drive.
std::size_t	additional_handle_cleanup_count () const
void	ResumeResponseIfRequested (CURL *easy)
	Resume receive-side callback output at one bounded drive boundary when the dedicated API plan requested it.
void	ApplyPendingBackpressure ()
	Apply the BackpressureConfig cached by DriveScenario to the new connection_.

Additional Inherited Members
Public Types inherited from proto_fuzzer::MockServerBase
using	MultiObserver = std::function<void(CURLM*)>
	Callback type used to publish the driving multi handle to observers.
Static Protected Member Functions inherited from proto_fuzzer::MockServerBase
static int	WaitOnMultiFdset (CURLM multi, CURLMcode rc)
	Wait on curl's fdset with a short timeout.
static void	ProbeMultiPollset (CURLM *multi)
	Ask curl to construct and inspect its connection-filter pollset without waiting.
static bool	MultiPollsetWantsWrite (CURLM *multi, curl_socket_t socket)
	Inspect one socket's current writable interest through curl's public multi fdset API.
static bool	UsesTimedDrive (const curl::fuzzer::proto::Scenario &scenario)
	Treat a non-default BackpressureConfig as an explicit request for the slower, timed drive policy.
Protected Attributes inherited from proto_fuzzer::MockServerBase
std::unique_ptr< MockConnection >	connection_
	The per-scenario MockConnection, lazily created by HandleOpenSocket().
int	pending_recv_buf_bytes_
	Cached SO_RCVBUF/SO_SNDBUF setting in bytes.
std::size_t	pending_drain_limit_
	Cached per-call DrainIncoming byte budget.
MultiSocketDriver *	multi_socket_driver_
	Non-owning pointer into DriveScenario's stack.
std::size_t	additional_handle_cleanup_count_
	Number of application-created handles, excluding the caller's parent, successfully removed from the current multi and cleaned up.
bool	resume_response_
	True only for an API-plan multi drive with its one-shot write callback.
MultiObserver	multi_observer_
	Observer receiving the live multi handle at the start of a drive.
Static Protected Attributes inherited from proto_fuzzer::MockServerBase
static constexpr int	kMaxDriveIterations = 512
	Hard operation budget for one scenario.
static constexpr int	kMaxIdleIterations = 8
	Consecutive no-progress budget for ordinary scenarios.
static constexpr int	kMaxTimedIdleIterations = 256
	Explicit backpressure scenarios get a larger idle budget and may use the short timed wait above.

Detailed Description

Runs Connection's bounded raw-byte scripts as HTTP/2 frames over the real in-process TLS transport.

The lane fixes protocol selection rather than relying on a mutable CURLOPT_HTTP_VERSION, and installs the public server- push callback before curl emits its initial SETTINGS frame.

Definition at line 27 of file h2_origin_mock_server.h.

Constructor & Destructor Documentation

◆ H2OriginMockServer()

proto_fuzzer::H2OriginMockServer::H2OriginMockServer	(	curl::fuzzer::proto::TlsCertificateChainProfile	certificate_chain = curl::fuzzer::proto::TLS_CERTIFICATE_CHAIN_DEFAULT_EC,
		curl::fuzzer::proto::TlsGroupProfile	group_profile = curl::fuzzer::proto::TLS_GROUP_X25519 )

explicit

Construct an HTTP/2 TLS peer with the selected certificate chain.

Parameters

certificate_chain	Fixed certificate-chain profile to present.
group_profile	Key-exchange group profile shared by both endpoints.

Definition at line 30 of file h2_origin_mock_server.cc.

Member Function Documentation

◆ cleaned_push_count()

std::size_t proto_fuzzer::H2OriginMockServer::cleaned_push_count ( ) const

Returns: Number of accepted pushed handles explicitly cleaned up.

Definition at line 93 of file h2_origin_mock_server.cc.

◆ CreateConnection()

std::unique_ptr< MockConnection > proto_fuzzer::H2OriginMockServer::CreateConnection ( )

overrideprotectedvirtual

Attach the reusable H2 client-frame tracker after TLS decryption.

Returns: Newly allocated TLS connection with the tracker attached.

Reimplemented from proto_fuzzer::MockServer.

Definition at line 57 of file h2_origin_mock_server.cc.

◆ HandleDetachedMulti()

void proto_fuzzer::H2OriginMockServer::HandleDetachedMulti ( CurlMultiPtr multi )

overrideprotectedvirtual

Keep the connection cache alive until this mock is destroyed, after the caller has cleaned the detached easy handle.

Parameters

multi Detached multi handle and its live connection cache.

Reimplemented from proto_fuzzer::MockServerBase.

Definition at line 86 of file h2_origin_mock_server.cc.

◆ Install()

void proto_fuzzer::H2OriginMockServer::Install ( CURL * easy )

overridevirtual

Keep transport selection out of the mutation grammar.

Applying Scenario options after this hook is safe because the fixed H2 policy removes HTTP_VERSION and does not expose UPKEEP_INTERVAL_MS in the structured option manifest.

Parameters

easy	Easy handle to configure.

Reimplemented from proto_fuzzer::MockServerBase.

Definition at line 46 of file h2_origin_mock_server.cc.

◆ RunLoop()

void proto_fuzzer::H2OriginMockServer::RunLoop	(	CURLM *	multi,
		CURL *	easy,
		const curl::fuzzer::proto::Scenario &	scenario )

overrideprotectedvirtual

Run the raw HTTP/2 response driver and probe server push and upkeep APIs.

Parameters

multi	Multi handle containing easy.
easy	Easy handle attached to this mock.
scenario	Source of bounded HTTP/2 response bytes.

Implements proto_fuzzer::MockServerBase.

Definition at line 67 of file h2_origin_mock_server.cc.

◆ runtime()

const H2Runtime & proto_fuzzer::H2OriginMockServer::runtime ( ) const

Expose shared protocol observations without allowing carrier state changes.

Returns: Runtime owned by this TLS carrier.

Definition at line 90 of file h2_origin_mock_server.cc.

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

proto_fuzzer/h2_origin_mock_server.h
proto_fuzzer/h2_origin_mock_server.cc

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ H2OriginMockServer()

Member Function Documentation

◆ cleaned_push_count()

◆ CreateConnection()

◆ HandleDetachedMulti()

◆ Install()

◆ RunLoop()

◆ runtime()