h2_protocol.c File Reference

#include <assert.h>
#include <apr_strings.h>
#include <apr_optional.h>
#include <apr_optional_hooks.h>
#include <httpd.h>
#include <http_core.h>
#include <http_config.h>
#include <http_connection.h>
#include <http_protocol.h>
#include <http_request.h>
#include <http_ssl.h>
#include <http_log.h>
#include "mod_http2.h"
#include "h2_private.h"
#include "h2_bucket_beam.h"
#include "h2_stream.h"
#include "h2_c2.h"
#include "h2_config.h"
#include "h2_conn_ctx.h"
#include "h2_c1.h"
#include "h2_request.h"
#include "h2_headers.h"
#include "h2_session.h"
#include "h2_util.h"
#include "h2_protocol.h"

Go to the source code of this file.

Functions
const char *	h2_protocol_err_description (unsigned int h2_error)
static void	cipher_init (apr_pool_t *pool)
static int	cipher_is_blacklisted (const char *cipher, const char **psource)
apr_status_t	h2_protocol_init (apr_pool_t *pool, server_rec *s)
int	h2_protocol_is_acceptable_c1 (conn_rec *c, request_rec *r, int require_all)

Variables
const char *	h2_protocol_ids_tls []
const char *	h2_protocol_ids_clear []
const char *	H2_MAGIC_TOKEN = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
static const char *	h2_err_descr []
static const char *	RFC7540_names []
static size_t	RFC7540_names_LEN = sizeof(RFC7540_names)/sizeof(RFC7540_names[0])
static apr_hash_t *	BLCNames

Function Documentation

cipher_init()

static void cipher_init ( apr_pool_t *  pool )

static

Definition at line 403 of file h2_protocol.c.

cipher_is_blacklisted()

static int cipher_is_blacklisted ( const char *  cipher, const char **  psource  )

static

Definition at line 417 of file h2_protocol.c.

h2_protocol_err_description()

const char * h2_protocol_err_description

(

unsigned int

h2_error

)

Provide a user readable description of the HTTP/2 error code-

Parameters

h2_error

http/2 error code, as in rfc 7540, ch. 7

Returns

textual description of code or that it is unknown.

Definition at line 78 of file h2_protocol.c.

h2_protocol_init()

apr_status_t h2_protocol_init	(	apr_pool_t *	pool,
		server_rec *	s
	)

Definition at line 423 of file h2_protocol.c.

h2_protocol_is_acceptable_c1()

int h2_protocol_is_acceptable_c1	(	conn_rec *	c,
		request_rec *	r,
		int	require_all
	)

Check if the given primary connection fulfills the protocol requirements for HTTP/2.

Parameters

c	the connection
require_all	!= 0 iff any missing connection properties make the test fail. For example, a cipher might not have been selected while the handshake is still ongoing.

Returns

!= 0 iff protocol requirements are met

Definition at line 432 of file h2_protocol.c.

Variable Documentation

BLCNames

apr_hash_t* BLCNames

static

Definition at line 401 of file h2_protocol.c.

h2_err_descr

const char* h2_err_descr[]

static

Initial value:

= {
    "no error",                    
    "protocol error",
    "internal error",
    "flow control error",
    "settings timeout",
    "stream closed",               
    "frame size error",
    "refused stream",
    "cancel",
    "compression error",
    "connect error",               
    "enhance your calm",
    "inadequate security",
    "http/1.1 required",
}

Definition at line 61 of file h2_protocol.c.

H2_MAGIC_TOKEN

const char* H2_MAGIC_TOKEN = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"

The magic PRIamble of RFC 7540 that is always sent when starting a h2 communication.

Definition at line 56 of file h2_protocol.c.

h2_protocol_ids_clear

const char* h2_protocol_ids_clear[]

Initial value:

= {
    "h2c", NULL
}

List of protocol identifiers that we support in cleartext negotiations. NULL terminated.

Definition at line 52 of file h2_protocol.c.

h2_protocol_ids_tls

const char* h2_protocol_ids_tls[]

Initial value:

= {
    "h2", NULL
}

List of protocol identifiers that we support in TLS encrypted negotiations (ALPN). NULL terminated.

Definition at line 48 of file h2_protocol.c.

RFC7540_names

const char* RFC7540_names[]

static

Definition at line 94 of file h2_protocol.c.

RFC7540_names_LEN

size_t RFC7540_names_LEN = sizeof(RFC7540_names)/sizeof(RFC7540_names[0])

static

Definition at line 398 of file h2_protocol.c.