ex_network_alpn.c File Reference

#include "nilorea/n_common.h"
#include "nilorea/n_http2_server.h"
#include "nilorea/n_log.h"
#include "nilorea/n_network.h"
#include "nilorea/n_str.h"
#include "nilorea/n_x509.h"
#include <getopt.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <openssl/ssl.h>

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Data Structures
struct	CA_CTX
	CA used by the server to mint per-host leaves. More...
struct	SRV
	server worker context More...

Macros
#define	ALPN_HOST   "alpn.host.example"
	the host name the client requests via SNI
#define	H2_REPLY   "served-over-h2"
	the body the HTTP/2 handler answers with
#define	ROUNDS   3
	how many connections the server accepts before it stops

Functions
static NETWORK *	bind_free (char *port_out, size_t port_out_len)
static NETWORK *	client_connect (const char *port, const char *const *protos, size_t count, char *got, size_t got_len)
static int	h2_client_get (NETWORK *c, const char *path, int *status, char *body, size_t body_cap)
static int	h2_on_request (void *ud, N_H2_SERVER *srv, const N_H2_REQUEST *req)
int	main (int argc, char **argv)
static int	pick_cb (const char *sni, N_STR **cert_pem, N_STR **key_pem, void *user_data)
void	process_args (int argc, char **argv)
static void *	server_fn (void *p)
static ssize_t	tls_read (void *io, void *buf, size_t len)
static ssize_t	tls_write (void *io, const void *buf, size_t len)

Variables
static int	failures = 0

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Data Structure Documentation

CA_CTX

struct CA_CTX

CA used by the server to mint per-host leaves.

Examples

ex_network_alpn.c, and ex_network_sni.c.

Definition at line 61 of file ex_network_alpn.c.

Collaboration diagram for CA_CTX:

Data Fields
N_STR *	cert	the CA certificate PEM
N_STR *	key	the CA private key PEM

SRV

struct SRV

server worker context

Examples

ex_network_alpn.c, ex_network_sni.c, and ex_network_ssl_nonblock.c.

Definition at line 67 of file ex_network_alpn.c.

Collaboration diagram for SRV:

Data Fields
CA_CTX *	ca	the CA to mint leaves with
SSL_CTX *	ctx	shared server ctx (owned by main)
char	h2_path[128]	the :path of the last HTTP/2 request
int	h2_requests	requests served over HTTP/2
NETWORK *	listen	the listening socket listening NETWORK
int	ok	set to 1 once the server completed the exchange
int	rounds_done	how many connections it served
char	selected[3][32]	what ALPN the server answered per round

Macro Definition Documentation

ALPN_HOST

#define ALPN_HOST   "alpn.host.example"

the host name the client requests via SNI

Examples

ex_network_alpn.c.

Definition at line 52 of file ex_network_alpn.c.

Referenced by client_connect(), and h2_client_get().

H2_REPLY

#define H2_REPLY   "served-over-h2"

the body the HTTP/2 handler answers with

Examples

ex_network_alpn.c.

Definition at line 56 of file ex_network_alpn.c.

Referenced by h2_on_request(), and main().

ROUNDS

#define ROUNDS   3

how many connections the server accepts before it stops

Examples

ex_network_alpn.c.

Definition at line 54 of file ex_network_alpn.c.

Referenced by main(), and server_fn().

Function Documentation

bind_free()

NETWORK * bind_free ( char * port_out, size_t port_out_len )

static

Examples

ex_network_alpn.c, ex_network_sni.c, and ex_network_ssl_nonblock.c.

Definition at line 295 of file ex_network_alpn.c.

References netw_close(), netw_make_listening(), and NETWORK_IPALL.

Referenced by main().

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client_connect()

NETWORK * client_connect ( const char * port, const char *const * protos, size_t count, char * got, size_t got_len )

static

Examples

ex_network_alpn.c.

Definition at line 276 of file ex_network_alpn.c.

References ALPN_HOST, netw_close(), netw_ssl_connect_client_to(), netw_ssl_do_handshake(), netw_ssl_get_alpn(), netw_ssl_set_alpn(), netw_ssl_set_verify(), NETWORK_IPALL, and port.

Referenced by main().

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h2_client_get()

int h2_client_get ( NETWORK * c, const char * path, int * status, char * body, size_t body_cap )

static

< SETTINGS

< HEADERS

< HEADERS/PUSH_PROMISE/CONTINUATION: header block complete

< DATA/HEADERS: last frame of the stream

< HEADERS

< DATA

< DATA/HEADERS: last frame of the stream

Examples

ex_network_alpn.c.

Definition at line 194 of file ex_network_alpn.c.

References ALPN_HOST, done, N_H2_FRAME::flags, N_H2_FRAME::length, N_H2_DATA, N_H2_FLAG_END_HEADERS, N_H2_FLAG_END_STREAM, N_H2_FRAME_HEADER_LEN, N_H2_HEADERS, N_H2_PREFACE, N_H2_SETTINGS, n_http2_frame_build_header(), n_http2_frame_parse(), n_http2_hpack_decode(), n_http2_hpack_encode(), n_http2_hpack_free(), n_http2_hpack_headers_free(), n_http2_hpack_new(), N_H2_HEADER::name, N_H2_FRAME::payload, N_H2_FRAME::stream_id, tls_read(), tls_write(), N_H2_FRAME::type, and N_H2_HEADER::value.

Referenced by main().

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h2_on_request()

int h2_on_request ( void * ud, N_H2_SERVER * srv, const N_H2_REQUEST * req )

static

Examples

ex_network_alpn.c.

Definition at line 138 of file ex_network_alpn.c.

References failures, SRV::h2_path, H2_REPLY, SRV::h2_requests, n_http2_server_respond(), N_H2_HEADER::name, N_H2_REQUEST::path, N_H2_REQUEST::stream_id, and N_H2_HEADER::value.

Referenced by server_fn().

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main()

int main	(	int	argc,
		char **	argv )

Definition at line 311 of file ex_network_alpn.c.

References bind_free(), SRV::ca, CA_CTX::cert, client_connect(), failures, free_nstr, h2_client_get(), SRV::h2_path, H2_REPLY, SRV::h2_requests, CA_CTX::key, SRV::listen, LOG_ERR, LOG_NOTICE, n_log, n_x509_generate_ca(), netw_close(), netw_init_openssl(), netw_ssl_get_alpn(), netw_ssl_server_handshake_ex(), netw_ssl_set_alpn(), netw_unload_openssl(), pick_cb(), port, process_args(), ROUNDS, SRV::rounds_done, SRV::selected, server_fn(), set_log_level(), NETWORK::ssl, and tls_write().

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pick_cb()

int pick_cb ( const char * sni, N_STR ** cert_pem, N_STR ** key_pem, void * user_data )

static

Examples

ex_network_alpn.c, and ex_network_sni.c.

Definition at line 105 of file ex_network_alpn.c.

References CA_CTX::cert, CA_CTX::key, and n_x509_mint_host_cert().

Referenced by main(), server_fn(), and server_fn().

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process_args()

void process_args	(	int	argc,
		char **	argv )

Definition at line 77 of file ex_network_alpn.c.

References LOG_DEBUG, LOG_ERR, LOG_INFO, LOG_NOTICE, LOG_NULL, and set_log_level().

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server_fn()

void * server_fn ( void * p )

static

Examples

ex_network_alpn.c, ex_network_sni.c, and ex_network_ssl_nonblock.c.

Definition at line 153 of file ex_network_alpn.c.

References _str, SRV::ca, failures, h2_on_request(), SRV::listen, LOG_ERR, n_http2_server_error(), n_http2_server_free(), n_http2_server_handshake(), n_http2_server_new(), n_http2_server_run(), n_log, netw_accept_from(), netw_close(), netw_ssl_get_alpn(), netw_ssl_server_handshake_ex(), pick_cb(), ROUNDS, SRV::rounds_done, SRV::selected, NETWORK::ssl, tls_read(), and tls_write().

Referenced by main().

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tls_read()

ssize_t tls_read ( void * io, void * buf, size_t len )

static

Examples

ex_network_alpn.c.

Definition at line 115 of file ex_network_alpn.c.

References NETWORK::ssl.

Referenced by h2_client_get(), and server_fn().

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tls_write()

ssize_t tls_write ( void * io, const void * buf, size_t len )

static

Examples

ex_network_alpn.c.

Definition at line 121 of file ex_network_alpn.c.

References NETWORK::ssl.

Referenced by h2_client_get(), main(), and server_fn().

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Variable Documentation

failures

int failures = 0

static

Definition at line 58 of file ex_network_alpn.c.