fb_transport_mbedtls.c File Reference

Football transport implementations for mBed TLS (formerly Polar SSL). More...

#include <config.h>
#include <assert.h>
#include <errno.h>
#include "fb_public.h"
#include "fb_transport.h"
#include "fb_service.h"
#include <sys/socket.h>
#include <mbedtls/net.h>
#include <mbedtls/ssl.h>
#include <mbedtls/entropy.h>
#include <mbedtls/ctr_drbg.h>
#include <mbedtls/pem.h>
#include <mbedtls/pk.h>
#include <mbedtls/error.h>
#include <mbedtls/debug.h>

Include dependency graph for fb_transport_mbedtls.c:

Functions
static void	mbedtls_debug (void *ctx, int level, const char *file, int line, const char *str)
static void	fb_mbedtls_error (struct fb_connection_t *connection, const char *func, int error)
static void	fb_mbedtls_config_error (const char *func, int error)
bool	fb_mbedtls_configure (const FB_TLS_CONFIG_FILENAMES *path)
bool	fb_mbedtls_init (FB_CONNECTION *connection)
ssize_t	fb_mbedtls_handshake (struct fb_connection_t *connection)
ssize_t	fb_mbedtls_buffering (struct fb_connection_t *connection)
ssize_t	fb_mbedtls_read (struct fb_connection_t *connection, char *data, ssize_t byte_count)
ssize_t	fb_mbedtls_write (struct fb_connection_t *connection, const char *data, ssize_t byte_count)
void	fb_mbedtls_done (FB_CONNECTION *connection)
void	fb_mbedtls_cleanup ()

Variables
static bool	fb_tls_initialized
static mbedtls_x509_crt	tls_certificate
static mbedtls_pk_context	tls_public_key
static mbedtls_x509_crt	root_ca_certificate
static mbedtls_x509_crl	root_revokation_certificate
static mbedtls_entropy_context	entropy
static mbedtls_ctr_drbg_context	random_context
static mbedtls_ssl_config	server_config
const FB_TRANSPORT_FUNCS	fb_transport_encrypted

Detailed Description

Football transport implementations for mBed TLS (formerly Polar SSL).

• Football socket abstraction layer

  Author

  Perette Barella

  Date

  2016-03-09

  Copyright

  Copyright 2016-2017 Devious Fish. All rights reserved.

Function Documentation

fb_mbedtls_buffering()

ssize_t fb_mbedtls_buffering

(

struct fb_connection_t *

connection

)

Query number of bytes in TLS buffers. mbedtls doesn't seem to have a pending bytes function, or possibly I am unable to find it in their documentation. To simulate, we read one byte and buffer it, then tack it onto the front of the next read.

fb_mbedtls_cleanup()

void fb_mbedtls_cleanup

(

)

fb_mbedtls_config_error()

static void fb_mbedtls_config_error ( const char *  func, int  error  )

static

Here is the caller graph for this function:

fb_mbedtls_configure()

bool fb_mbedtls_configure

(

const FB_TLS_CONFIG_FILENAMES *

path

)

Load certificates and keys.

Here is the call graph for this function:

fb_mbedtls_done()

void fb_mbedtls_done

(

FB_CONNECTION *

connection

)

fb_mbedtls_error()

static void fb_mbedtls_error ( struct fb_connection_t *  connection, const char *  func, int  error  )

static

Here is the caller graph for this function:

fb_mbedtls_handshake()

ssize_t fb_mbedtls_handshake

(

struct fb_connection_t *

connection

)

Perform TLS handshaking on a new connection. Return incomplete, failure, or 0.

Here is the call graph for this function:

fb_mbedtls_init()

bool fb_mbedtls_init

(

FB_CONNECTION *

connection

)

Initialize the TLS stuff for a new connection.

Parameters

connection

The connection to initialize.

Returns

true on success, false on error.

Here is the call graph for this function:

fb_mbedtls_read()

ssize_t fb_mbedtls_read	(	struct fb_connection_t *	connection,
		char *	data,
		ssize_t	byte_count
	)

Read data from a TLS connection using mBedTLS.

Here is the call graph for this function:

fb_mbedtls_write()

ssize_t fb_mbedtls_write	(	struct fb_connection_t *	connection,
		const char *	data,
		ssize_t	byte_count
	)

Write data to a TLS connection using mBedTLS.

Here is the call graph for this function:

mbedtls_debug()

static void mbedtls_debug ( void *  ctx, int  level, const char *  file, int  line, const char *  str  )

static

Here is the caller graph for this function:

Variable Documentation

entropy

mbedtls_entropy_context entropy

static

fb_tls_initialized

bool fb_tls_initialized

static

fb_transport_encrypted

const FB_TRANSPORT_FUNCS fb_transport_encrypted

Initial value:

= {
    .configure = fb_mbedtls_configure,
    .cleanup = fb_mbedtls_cleanup,
    .init = fb_mbedtls_init,
    .handshake = fb_mbedtls_handshake,
    .buffering = fb_mbedtls_buffering,
    .read = fb_mbedtls_read,
    .write = fb_mbedtls_write,
    .done = fb_mbedtls_done
}

random_context

mbedtls_ctr_drbg_context random_context

static

root_ca_certificate

mbedtls_x509_crt root_ca_certificate

static

root_revokation_certificate

mbedtls_x509_crl root_revokation_certificate

static

server_config

mbedtls_ssl_config server_config

static

tls_certificate

mbedtls_x509_crt tls_certificate

static

tls_public_key

mbedtls_pk_context tls_public_key

static