lsquic/BoringSSL-based HTTP/3 server for CWIST. More...

#include <cwist/net/http/http3.h>
#include <cwist/net/http/http2.h>
#include <cwist/core/log.h>
#include <cwist/core/mem/alloc.h>
#include <cwist/core/seq/seq.h>
#include <cwist/sys/err/cwist_err.h>
#include <cwist/sys/app/shutdown.h>
#include <ttak/timing/timing.h>
#include <ttak/async/sched.h>
#include "tls_chain.h"
#include "h3_hdr_out.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <poll.h>
#include <pthread.h>
#include <ctype.h>
#include <strings.h>
#include <inttypes.h>
#include <openssl/ssl.h>
#include <openssl/x509.h>
#include <openssl/evp.h>
#include <openssl/rsa.h>
#include <openssl/bn.h>
#include <openssl/rand.h>
#include <openssl/hmac.h>
#include <lsquic.h>
#include <lsxpack_header.h>

Include dependency graph for http3.c:

Go to the source code of this file.

Macros
#define	_POSIX_C_SOURCE 200809L

#define	MSG_DONTWAIT 0

#define	H3_PSEUDO_METHOD 0x01u

#define	H3_PSEUDO_SCHEME 0x02u

#define	H3_PSEUDO_PATH 0x04u

#define	H3_PSEUDO_AUTHORITY 0x08u

#define	H3_PSEUDO_PROTOCOL 0x10u

#define	H3_MAX_HEADERS 256

#define	H3_DECODE_BUF_SIZE 131072

#define	H3_MAX_RESPONSE_HEADERS 256

#define	H3_RESPONSE_HEADER_BUF_SIZE 32768

#define	H3_FILE_CHUNKS_PER_TICK 4

Typedefs
typedef struct h3_stream_ctx	h3_stream_ctx_t

typedef struct h3_dgram_node	h3_dgram_node_t

typedef struct h3_conn_ctx	h3_conn_ctx_t

typedef struct cwist_h3_hset	cwist_h3_hset_t

typedef struct cwist_h3_ticket_key	cwist_h3_ticket_key

Functions
int	cwist_http3_normalize_response_header_name (const char name, char out, size_t out_len)
	Normalize a response header name to lowercase HTTP/3 form.

int	cwist_http3_response_header_value_is_safe (const char *value)
	Whether a response header value is safe to put on the wire.

cwist_error_t	cwist_http3_init_context (cwist_http3_context *ctx, const char cert_path, const char *key_path)
	Create an HTTP/3 server context from a certificate/key pair.

cwist_error_t	cwist_http3_init_context_ephemeral (cwist_http3_context **ctx)
	Create an HTTP/3 server context with an ephemeral self-signed certificate ("localhost", RSA-2048, 1-year validity).

void	cwist_http3_destroy_context (cwist_http3_context *ctx)
	Destroy a context: graceful engine stop, engine destroy, hset sweep, SSL_CTX and ticket-key teardown, context free.

cwist_error_t	cwist_http3_reload_context (cwist_http3_context ctx, const char cert_path, const char *key_path)
	Swap in a new certificate chain and key without dropping QUIC connections. See the public contract in http3.h.

cwist_error_t	cwist_http3_server_loop (int udp_fd, cwist_http3_context ctx, cwist_http3_request_handler_func handler, void user_ctx)
	Run the blocking HTTP/3 server loop on a UDP socket.

void	cwist_http3_set_push_enabled (cwist_http3_context *ctx, int enabled)
	Enable or disable HTTP/3 server push for this context. Takes effect at cwist_http3_server_loop() time (lsquic engine setting).

void	cwist_http3_set_early_data (cwist_http3_context *ctx, bool enabled)
	Enable or disable TLS 1.3 early data (0-RTT) on the context.

void	cwist_http3_set_early_data_guard (cwist_http3_context *ctx, int enabled)
	Enable or disable the 0-RTT replay guard.

int	cwist_http3_method_is_idempotent (const char *method_str)
	String-based idempotency check (RFC 9110), used by tests and external checks.

int	cwist_http3_push_resource (cwist_http_request req, const char path, const char *content_type)
	Promise a pushed resource from inside a request handler.

int	cwist_http3_set_stream_priority (cwist_http_request *req, unsigned priority)
	Deprecated and always refused: returns -1.

void	cwist_http3_set_webtransport_handler (cwist_http3_context *ctx, cwist_webtransport_handler_func handler)
	Register the WebTransport session handler (extended CONNECT).

void	cwist_webtransport_set_new_stream_handler (cwist_http3_context ctx, void(handler)(void stream, void user_ctx), void *user_ctx)
	Register the callback invoked for every new WebTransport stream.

ssize_t	cwist_webtransport_read (void stream, void buf, size_t len)
	Stub used when the WebTransport server is not compiled in: always -1.

ssize_t	cwist_webtransport_write (void stream, const void data, size_t len)
	Stub used when the WebTransport server is not compiled in: always -1.

int	cwist_webtransport_flush (void *stream)
	Stub used when the WebTransport server is not compiled in: always -1.

int	cwist_webtransport_close_stream (void *stream)
	Stub used when the WebTransport server is not compiled in: always -1.

int	cwist_webtransport_open_bidi_stream (void *session)
	Stub used when the WebTransport server is not compiled in: always -1.

int	cwist_webtransport_open_uni_stream (void *session)
	Stub used when the WebTransport server is not compiled in: always -1.

void	cwist_http3_set_idle_timeout (cwist_http3_context *ctx, int ms)
	Set the connection idle timeout (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

void	cwist_http3_set_handshake_timeout (cwist_http3_context *ctx, int ms)
	Set the handshake timeout (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

void	cwist_http3_set_ping_period (cwist_http3_context *ctx, int ms)
	Set the keep-alive ping period (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

void	cwist_http3_set_noprogress_timeout (cwist_http3_context *ctx, int ms)
	Set the no-progress timeout (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

void	cwist_http3_set_datagram_enabled (cwist_http3_context *ctx, int enabled)
	Enable or disable H3 datagrams for this context.

void	cwist_http3_set_datagram_callback (cwist_http3_context ctx, void(cb)(const void data, size_t len, void user_ctx), void *user_ctx)
	Register the callback for incoming H3/WebTransport datagrams.

int	cwist_http3_send_datagram (void conn, const void data, size_t len)
	Queue an outgoing H3 datagram on a connection.

ssize_t	cwist_webtransport_send_datagram (void session, const void data, size_t len)
	Stub used when the WebTransport server is not compiled in: always -1.

size_t	cwist_webtransport_max_datagram_size (void *session)
	Stub used when the WebTransport server is not compiled in: always 0.

int	cwist_webtransport_close_session (void session, uint64_t code, const char reason)
	Stub used when the WebTransport server is not compiled in: always -1.

Detailed Description

lsquic/BoringSSL-based HTTP/3 server for CWIST.

Implements a full HTTP/3 server using LiteSpeed's lsquic library linked statically against BoringSSL. Handles QUIC transport, QPACK, and HTTP/3 framing per RFC 9114.

Definition in file http3.c.

Macro Definition Documentation

◆ _POSIX_C_SOURCE

#define _POSIX_C_SOURCE 200809L

Definition at line 16 of file http3.c.

◆ H3_DECODE_BUF_SIZE

#define H3_DECODE_BUF_SIZE 131072

Definition at line 355 of file http3.c.

◆ H3_FILE_CHUNKS_PER_TICK

#define H3_FILE_CHUNKS_PER_TICK 4

◆ H3_MAX_HEADERS

#define H3_MAX_HEADERS 256

Definition at line 354 of file http3.c.

◆ H3_MAX_RESPONSE_HEADERS

#define H3_MAX_RESPONSE_HEADERS 256

Definition at line 356 of file http3.c.

◆ H3_PSEUDO_AUTHORITY

#define H3_PSEUDO_AUTHORITY 0x08u

Definition at line 135 of file http3.c.

◆ H3_PSEUDO_METHOD

#define H3_PSEUDO_METHOD 0x01u

Definition at line 132 of file http3.c.

◆ H3_PSEUDO_PATH

#define H3_PSEUDO_PATH 0x04u

Definition at line 134 of file http3.c.

◆ H3_PSEUDO_PROTOCOL

#define H3_PSEUDO_PROTOCOL 0x10u

Definition at line 136 of file http3.c.

◆ H3_PSEUDO_SCHEME

#define H3_PSEUDO_SCHEME 0x02u

Definition at line 133 of file http3.c.

◆ H3_RESPONSE_HEADER_BUF_SIZE

#define H3_RESPONSE_HEADER_BUF_SIZE 32768

Definition at line 357 of file http3.c.

◆ MSG_DONTWAIT

#define MSG_DONTWAIT 0

Definition at line 82 of file http3.c.

Typedef Documentation

◆ cwist_h3_hset_t

typedef struct cwist_h3_hset cwist_h3_hset_t

◆ cwist_h3_ticket_key

typedef struct cwist_h3_ticket_key cwist_h3_ticket_key

◆ h3_conn_ctx_t

typedef struct h3_conn_ctx h3_conn_ctx_t

◆ h3_dgram_node_t

typedef struct h3_dgram_node h3_dgram_node_t

◆ h3_stream_ctx_t

typedef struct h3_stream_ctx h3_stream_ctx_t

Function Documentation

◆ cwist_http3_destroy_context()

void cwist_http3_destroy_context ( cwist_http3_context * ctx )

Destroy a context: graceful engine stop, engine destroy, hset sweep, SSL_CTX and ticket-key teardown, context free.

Destroy an HTTP/3 context.

Parameters

ctx	Context from cwist_http3_init_context*(); may be NULL (no-op).

Releases the process-wide lsquic reference taken at init. Must not be called concurrently with cwist_http3_server_loop() on the same context.

Definition at line 2848 of file http3.c.

References cap, cwist_free(), cwist_http3_context::engine, cwist_http3_context::ssl_ctx, SSL_CTX_free, cwist_http3_context::ssl_ctx_handout, cwist_http3_context::ssl_ctx_lock, and cwist_http3_context::ticket_key.

Referenced by cwist_app_destroy().

◆ cwist_http3_init_context()

cwist_error_t cwist_http3_init_context	(	cwist_http3_context **	ctx,
		const char *	cert_path,
		const char *	key_path
	)

Create an HTTP/3 server context from a certificate/key pair.

Callback function type for handling WebTransport sessions over HTTP/3.

Parameters

ctx	Receives the new context.
cert_path	PEM file with the certificate chain.
key_path	PEM file with the private key.

Returns: err.error.err_i16 == 0 on success; -1 on bad arguments, TLS setup failure, or OOM. On failure all partial state is unwound and *ctx is untouched.

Takes a process-wide lsquic reference (released by cwist_http3_destroy_context()).

Definition at line 2673 of file http3.c.

References cap, cwist_alloc(), CWIST_ERR_INT16, make_error(), and SSL_CTX_free.

◆ cwist_http3_init_context_ephemeral()

cwist_error_t cwist_http3_init_context_ephemeral ( cwist_http3_context ** ctx )

Create an HTTP/3 server context with an ephemeral self-signed certificate ("localhost", RSA-2048, 1-year validity).

Initialize an HTTP/3 context with an ephemeral self-signed certificate.

Parameters

ctx	Receives the new context.

Returns: err.error.err_i16 == 0 on success; -1 on TLS setup failure or OOM. On failure all partial state is unwound.

Intended for tests and local deployments where provisioning a real certificate is impractical. Takes a process-wide lsquic reference (released by cwist_http3_destroy_context()).

Definition at line 2721 of file http3.c.

References cap, cwist_alloc(), CWIST_ERR_INT16, EVP_sha256, make_error(), SSL_CTX_free, and SSL_CTX_new.

◆ cwist_http3_method_is_idempotent()

int cwist_http3_method_is_idempotent ( const char * method_str )

String-based idempotency check (RFC 9110), used by tests and external checks.

Return values

1	The method is idempotent (GET/HEAD/PUT/DELETE/OPTIONS/TRACE).
0	NULL input or a non-idempotent/unknown method.

Definition at line 3448 of file http3.c.

References cap, and cwist_http_string_to_method().

◆ cwist_http3_normalize_response_header_name()

int cwist_http3_normalize_response_header_name	(	const char *	name,
		char *	out,
		size_t	out_len
	)

Normalize a response header name to lowercase HTTP/3 form.

Parameters

name	Source name.
out	Output buffer of at least `out_len` bytes.
out_len	Capacity of `out` (NUL included).

Return values

0	Name copied to `out` as lowercase NUL-terminated text.
-1	NULL/empty input, insufficient capacity, pseudo-header prefix, or a character outside the RFC 9110 field-name grammar.

Definition at line 1105 of file http3.c.

References cap.

◆ cwist_http3_push_resource()

int cwist_http3_push_resource	(	cwist_http_request *	req,
		const char *	path,
		const char *	content_type
	)

Promise a pushed resource from inside a request handler.

Push a resource to the client.

Parameters

req	Request whose stream anchors the push (must carry the lsquic stream in private_data).
path	Request path for the pushed resource.
content_type	Ignored; a response field, not valid in a push request set.

Return values

0	Push stream created.
-1	Bad arguments, no connection, or push not negotiated.

Builds a request header set (:method GET, :scheme https, :path from path, :authority copied from the original request's Host or "localhost").

Definition at line 3469 of file http3.c.

References h3_hdr_out::arr, cap, cwist_http_header_get(), cwist_http_request::headers, and cwist_http_request::private_data.

◆ cwist_http3_reload_context()

cwist_error_t cwist_http3_reload_context	(	cwist_http3_context *	ctx,
		const char *	cert_path,
		const char *	key_path
	)

Swap in a new certificate chain and key without dropping QUIC connections. See the public contract in http3.h.

Hot-reload the certificate chain and key of a live HTTP/3 context.

Definition at line 2879 of file http3.c.

References cap, CWIST_ERR_INT16, cwist_http3_context::early_data_enabled, make_error(), cwist_http3_context::ssl_ctx, SSL_CTX_free, cwist_http3_context::ssl_ctx_lock, and cwist_http3_context::ticket_key.

Referenced by cwist_app_reload_tls().

◆ cwist_http3_response_header_value_is_safe()

int cwist_http3_response_header_value_is_safe ( const char * value )

Whether a response header value is safe to put on the wire.

Return values

1	Every byte satisfies the RFC 9113/9114 field-value grammar (no CTLs including CR/LF, no DEL).
0	`value` is NULL or contains a forbidden byte; clients would reject the response as malformed.

Definition at line 1127 of file http3.c.

References cap.

◆ cwist_http3_send_datagram()

int cwist_http3_send_datagram	(	void *	conn,
		const void *	data,
		size_t	len
	)

Queue an outgoing H3 datagram on a connection.

Send an unreliable datagram over the given QUIC connection.

Parameters

conn	lsquic connection (as seen in cwist_http_request::private_data chains); used to find the per-connection queue.
data	Payload to copy.
len	Payload length.

Return values

0	Datagram queued; lsquic is signaled to drain it via the on_dg_write callback.
-1	Bad arguments, no per-connection ctx, or OOM (nothing queued).

Thread-safe: the payload is copied and appended to the connection's own mutex-guarded queue, so concurrent sends on different connections never share state and concurrent sends on one connection queue instead of clobbering each other.

Definition at line 3823 of file http3.c.

References cap.

◆ cwist_http3_server_loop()

cwist_error_t cwist_http3_server_loop	(	int	udp_fd,
		cwist_http3_context *	ctx,
		cwist_http3_request_handler_func	handler,
		void *	user_ctx
	)

Run the blocking HTTP/3 server loop on a UDP socket.

Run the HTTP/3 server event loop.

Parameters

udp_fd	Bound UDP socket; forced non-blocking here (idempotent).
ctx	Context with an initialized SSL_CTX.
handler	Request handler invoked per request (required).
user_ctx	Passed through to `handler`.

Returns: err.error.err_i16 == 0 when the loop exits cleanly (ctx->running cleared or process shutdown); -1 on invalid arguments or setup failure (socket flags, epoll, memory).

Configures lsquic engine settings from the context's knobs (push, WebTransport, datagrams, flow-control windows, timeout set), then polls the socket (epoll on Linux, poll elsewhere; recvmmsg batching when available), feeds packets to the engine, and processes connections until shutdown. Linux receive batches and the packet buffer are heap-allocated so the loop does not require an oversized thread stack. On exit the engine is gracefully stopped and destroyed. CWIST_H3_DEBUG=1 routes lsquic's logger to stderr.

Definition at line 2932 of file http3.c.

◆ cwist_http3_set_datagram_callback()

void cwist_http3_set_datagram_callback	(	cwist_http3_context *	ctx,
		void()(const void data, size_t len, void *user_ctx)	cb,
		void *	user_ctx
	)

Register the callback for incoming H3/WebTransport datagrams.

Register a callback for incoming QUIC datagrams.

Parameters

user_ctx Passed through as the last argument of cb.

Definition at line 3799 of file http3.c.

References cwist_http3_context::datagram_cb, and cwist_http3_context::datagram_user_ctx.

◆ cwist_http3_set_datagram_enabled()

void cwist_http3_set_datagram_enabled	(	cwist_http3_context *	ctx,
		int	enabled
	)

Enable or disable H3 datagrams for this context.

Enable or disable QUIC datagram extension on the given context.

Note: enabling WebTransport forces the datagram engine settings on regardless of this knob.

Definition at line 3791 of file http3.c.

References cwist_http3_context::datagram_enabled.

◆ cwist_http3_set_early_data()

void cwist_http3_set_early_data	(	cwist_http3_context *	ctx,
		bool	enabled
	)

Enable or disable TLS 1.3 early data (0-RTT) on the context.

Enable or disable server-side 0-RTT early data on the given context.

Enabling also arms the replay guard (only idempotent methods are accepted as early data) unless the application overrides it with cwist_http3_set_early_data_guard().

Definition at line 3416 of file http3.c.

References cap, cwist_http3_context::early_data_enabled, cwist_http3_context::early_data_guard, cwist_http3_context::ssl_ctx, and cwist_http3_context::ssl_ctx_lock.

◆ cwist_http3_set_early_data_guard()

void cwist_http3_set_early_data_guard	(	cwist_http3_context *	ctx,
		int	enabled
	)

Enable or disable the 0-RTT replay guard.

Enable or disable the 0-RTT replay guard (default ON when early data is enabled).

While armed, requests received while the QUIC handshake is still in progress are refused with 425 unless their method is idempotent (RFC 8470).

Definition at line 3438 of file http3.c.

References cwist_http3_context::early_data_guard.

◆ cwist_http3_set_handshake_timeout()

void cwist_http3_set_handshake_timeout	(	cwist_http3_context *	ctx,
		int	ms
	)

Set the handshake timeout (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

Set the handshake timeout.

Definition at line 3761 of file http3.c.

References cap, and cwist_http3_context::handshake_timeout_ms.

◆ cwist_http3_set_idle_timeout()

void cwist_http3_set_idle_timeout	(	cwist_http3_context *	ctx,
		int	ms
	)

Set the connection idle timeout (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

Set the idle timeout for QUIC connections.

Definition at line 3753 of file http3.c.

References cap, and cwist_http3_context::idle_timeout_ms.

◆ cwist_http3_set_noprogress_timeout()

void cwist_http3_set_noprogress_timeout	(	cwist_http3_context *	ctx,
		int	ms
	)

Set the no-progress timeout (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

Set the no-progress timeout.

Definition at line 3777 of file http3.c.

References cap, and cwist_http3_context::noprogress_timeout_ms.

◆ cwist_http3_set_ping_period()

void cwist_http3_set_ping_period	(	cwist_http3_context *	ctx,
		int	ms
	)

Set the keep-alive ping period (milliseconds, <= 0 disables). Takes effect at cwist_http3_server_loop() time.

Set the keep-alive PING period.

Definition at line 3769 of file http3.c.

References cap, and cwist_http3_context::ping_period_ms.

◆ cwist_http3_set_push_enabled()

void cwist_http3_set_push_enabled	(	cwist_http3_context *	ctx,
		int	enabled
	)

Enable or disable HTTP/3 server push for this context. Takes effect at cwist_http3_server_loop() time (lsquic engine setting).

Enable or disable HTTP/3 server push on the given context.

Definition at line 3405 of file http3.c.

References cwist_http3_context::push_enabled.

◆ cwist_http3_set_stream_priority()

int cwist_http3_set_stream_priority	(	cwist_http_request *	req,
		unsigned	priority
	)

Deprecated and always refused: returns -1.

Set stream priority for the current response.

lsquic_stream_set_priority() on a request stream emits a PRIORITY_UPDATE frame on the control stream, which violates RFC 9218 (PRIORITY_UPDATE may only reference client-opened streams). Strict stacks (Firefox/neqo) then kill the connection with H3_FRAME_UNEXPECTED. Use the RFC 9218 Priority header instead. See the deprecation note in include/cwist/net/http/http3.h.

Definition at line 3508 of file http3.c.

References cap, and CWIST_LOG_WARN.

◆ cwist_http3_set_webtransport_handler()

void cwist_http3_set_webtransport_handler	(	cwist_http3_context *	ctx,
		cwist_webtransport_handler_func	handler
	)

Register the WebTransport session handler (extended CONNECT).

Register a WebTransport session handler on the given HTTP/3 context.

When set, the server loop enables the lsquic WebTransport settings and extended-CONNECT requests with :protocol "webtransport" are handed to this handler via cwist_h3_wt_on_session_open().

Definition at line 3527 of file http3.c.

References cwist_http3_context::wt_handler.

Referenced by cwist_app_use_webtransport().

◆ cwist_webtransport_close_session()

int cwist_webtransport_close_session	(	void *	session,
		uint64_t	code,
		const char *	reason
	)

Stub used when the WebTransport server is not compiled in: always -1.

Close a WebTransport session with an application error code.

Definition at line 3996 of file http3.c.

References cap.

◆ cwist_webtransport_close_stream()

int cwist_webtransport_close_stream ( void * stream )

Stub used when the WebTransport server is not compiled in: always -1.

Close a WebTransport stream.

Definition at line 3722 of file http3.c.

References cap.

◆ cwist_webtransport_flush()

int cwist_webtransport_flush ( void * stream )

Stub used when the WebTransport server is not compiled in: always -1.

Flush any buffered data on a WebTransport stream.

Definition at line 3714 of file http3.c.

References cap.

◆ cwist_webtransport_max_datagram_size()

size_t cwist_webtransport_max_datagram_size ( void * session )

Stub used when the WebTransport server is not compiled in: always 0.

Return the current maximum WebTransport datagram payload size.

Definition at line 3988 of file http3.c.

References cap.

◆ cwist_webtransport_open_bidi_stream()

int cwist_webtransport_open_bidi_stream ( void * session )

Stub used when the WebTransport server is not compiled in: always -1.

Request a new server-initiated bidirectional WebTransport stream.

Definition at line 3730 of file http3.c.

References cap.

◆ cwist_webtransport_open_uni_stream()

int cwist_webtransport_open_uni_stream ( void * session )

Stub used when the WebTransport server is not compiled in: always -1.

Request a new server-initiated unidirectional WebTransport stream.

Definition at line 3738 of file http3.c.

References cap.

◆ cwist_webtransport_read()

ssize_t cwist_webtransport_read	(	void *	stream,
		void *	buf,
		size_t	len
	)

Stub used when the WebTransport server is not compiled in: always -1.

Read data from a WebTransport stream.

Definition at line 3694 of file http3.c.

References cap.

◆ cwist_webtransport_send_datagram()

ssize_t cwist_webtransport_send_datagram	(	void *	session,
		const void *	data,
		size_t	len
	)

Stub used when the WebTransport server is not compiled in: always -1.

Send an unreliable WebTransport datagram in session context.

Definition at line 3978 of file http3.c.

References cap.

◆ cwist_webtransport_set_new_stream_handler()

void cwist_webtransport_set_new_stream_handler	(	cwist_http3_context *	ctx,
		void()(void stream, void *user_ctx)	handler,
		void *	user_ctx
	)

Register the callback invoked for every new WebTransport stream.

Register a callback for newly created WebTransport data streams.

Parameters

user_ctx Passed through as the second argument of handler.

Definition at line 3536 of file http3.c.

References cwist_http3_context::wt_new_stream_ctx, and cwist_http3_context::wt_new_stream_handler.

◆ cwist_webtransport_write()

ssize_t cwist_webtransport_write	(	void *	stream,
		const void *	data,
		size_t	len
	)

Stub used when the WebTransport server is not compiled in: always -1.

Write data to a WebTransport stream.

Definition at line 3704 of file http3.c.

References cap.

Macros

Typedefs

Functions

Detailed Description

Macro Definition Documentation

◆ _POSIX_C_SOURCE

◆ H3_DECODE_BUF_SIZE

◆ H3_FILE_CHUNKS_PER_TICK

◆ H3_MAX_HEADERS

◆ H3_MAX_RESPONSE_HEADERS

◆ H3_PSEUDO_AUTHORITY

◆ H3_PSEUDO_METHOD

◆ H3_PSEUDO_PATH

◆ H3_PSEUDO_PROTOCOL

◆ H3_PSEUDO_SCHEME

◆ H3_RESPONSE_HEADER_BUF_SIZE

◆ MSG_DONTWAIT

Typedef Documentation

◆ cwist_h3_hset_t

◆ cwist_h3_ticket_key

◆ h3_conn_ctx_t

◆ h3_dgram_node_t

◆ h3_stream_ctx_t

Function Documentation

◆ cwist_http3_destroy_context()

◆ cwist_http3_init_context()

◆ cwist_http3_init_context_ephemeral()

◆ cwist_http3_method_is_idempotent()

◆ cwist_http3_normalize_response_header_name()

◆ cwist_http3_push_resource()

◆ cwist_http3_reload_context()

◆ cwist_http3_response_header_value_is_safe()

◆ cwist_http3_send_datagram()

◆ cwist_http3_server_loop()

◆ cwist_http3_set_datagram_callback()

◆ cwist_http3_set_datagram_enabled()

◆ cwist_http3_set_early_data()

◆ cwist_http3_set_early_data_guard()

◆ cwist_http3_set_handshake_timeout()

◆ cwist_http3_set_idle_timeout()

◆ cwist_http3_set_noprogress_timeout()

◆ cwist_http3_set_ping_period()

◆ cwist_http3_set_push_enabled()

◆ cwist_http3_set_stream_priority()

◆ cwist_http3_set_webtransport_handler()

◆ cwist_webtransport_close_session()

◆ cwist_webtransport_close_stream()

◆ cwist_webtransport_flush()

◆ cwist_webtransport_max_datagram_size()

◆ cwist_webtransport_open_bidi_stream()

◆ cwist_webtransport_open_uni_stream()

◆ cwist_webtransport_read()

◆ cwist_webtransport_send_datagram()

◆ cwist_webtransport_set_new_stream_handler()

◆ cwist_webtransport_write()