tls_openssl.c File Reference

TLS implementation with OpenSSL. More...

Data Structures
struct	tls_t

Macros
#define	TLS_ERROR_STR(error, table)    _tls_error_str(error, table, ARRAY_SIZE(table))
#define	TLS_ERROR_FIELD(x)   [x] = #x

Enumerations
enum	{ TLS_SHUTDOWN_MAX_RETRIES = 10 , TLS_TIMEOUT_SEC = 0 , TLS_TIMEOUT_USEC = 100000 }

Functions
static const unsigned char *	ASN1_STRING_get0_data (ASN1_STRING *asn1)
static int	GENERAL_NAME_get0_otherName (const GENERAL_NAME *gen, ASN1_OBJECT **poid, ASN1_TYPE **pvalue)
static void	_tls_sock_wait (tls_t *tls, int error)
static const char *	_tls_error_str (int error, const char **tbl, size_t tbl_size)
static void	_tls_set_error (tls_t *tls, int error)
static void	_tls_log_error (xmpp_ctx_t *ctx)
static void	_tls_dump_cert_info (tls_t *tls)
static X509 *	_tls_cert_read (xmpp_conn_t *conn)
static int	_tls_xaddr_nid (void)
static int	_tls_xmppaddr_to_string (GENERAL_NAME *name, char **res)
	Convert GENERAL_NAME* to a string. More...
static int	_tls_dnsname_to_string (GENERAL_NAME *name, char **res)
static GENERAL_NAMES *	_tls_conn_get_names (xmpp_conn_t *conn)
static GENERAL_NAMES *	_tls_cert_get_names (X509 *client_cert)
void	tls_initialize (void)
void	tls_shutdown (void)
int	tls_error (tls_t *tls)
char *	tls_id_on_xmppaddr (xmpp_conn_t *conn, unsigned int n)
	Search through the SubjectAlternativeNames and return the next id-on-xmppAddr element starting from n. More...
unsigned int	tls_id_on_xmppaddr_num (xmpp_conn_t *conn)
static int	_convert_ASN1TIME (ASN1_TIME *ansi_time, char *buf, size_t len)
static char *	_asn1_time_to_str (const xmpp_ctx_t *ctx, ASN1_TIME *t)
static char *	_get_fingerprint (const xmpp_ctx_t *ctx, X509 *err_cert, xmpp_cert_element_t el)
static char *	_get_alg (const xmpp_ctx_t *ctx, X509 *err_cert, xmpp_cert_element_t el)
static xmpp_tlscert_t *	_x509_to_tlscert (xmpp_ctx_t *ctx, X509 *cert)
static int	_tls_verify (int preverify_ok, X509_STORE_CTX *x509_ctx)
tls_t *	tls_new (xmpp_conn_t *conn)
void	tls_free (tls_t *tls)
xmpp_tlscert_t *	tls_peer_cert (xmpp_conn_t *conn)
int	tls_set_credentials (tls_t *tls, const char *cafilename)
int	tls_start (tls_t *tls)
int	tls_stop (tls_t *tls)
int	tls_is_recoverable (int error)
int	tls_pending (tls_t *tls)
int	tls_read (tls_t *tls, void *buff, size_t len)
int	tls_write (tls_t *tls, const void *buff, size_t len)
int	tls_clear_pending_write (tls_t *tls)

Variables
const char *	tls_errors []
const char *	cert_errors []

Detailed Description

TLS implementation with OpenSSL.

Macro Definition Documentation

TLS_ERROR_STR

#define TLS_ERROR_STR	(		error,
			table
	)		_tls_error_str(error, table, ARRAY_SIZE(table))

TLS_ERROR_FIELD

#define TLS_ERROR_FIELD

(

x

)

[x] = #x

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
TLS_SHUTDOWN_MAX_RETRIES
TLS_TIMEOUT_SEC
TLS_TIMEOUT_USEC

Function Documentation

ASN1_STRING_get0_data()

static const unsigned char * ASN1_STRING_get0_data ( ASN1_STRING *  asn1 )

static

GENERAL_NAME_get0_otherName()

static int GENERAL_NAME_get0_otherName ( const GENERAL_NAME *  gen, ASN1_OBJECT **  poid, ASN1_TYPE **  pvalue  )

static

_tls_sock_wait()

static void _tls_sock_wait ( tls_t *  tls, int  error  )

static

_tls_error_str()

static const char * _tls_error_str ( int  error, const char **  tbl, size_t  tbl_size  )

static

_tls_set_error()

static void _tls_set_error ( tls_t *  tls, int  error  )

static

_tls_log_error()

static void _tls_log_error ( xmpp_ctx_t *  ctx )

static

_tls_dump_cert_info()

static void _tls_dump_cert_info ( tls_t *  tls )

static

_tls_cert_read()

static X509 * _tls_cert_read ( xmpp_conn_t *  conn )

static

_tls_xaddr_nid()

static int _tls_xaddr_nid ( void  )

static

_tls_xmppaddr_to_string()

static int _tls_xmppaddr_to_string ( GENERAL_NAME *  name, char **  res  )

static

Convert GENERAL_NAME* to a string.

This checks whether the GENERAL_NAME* that is given has the correct id-on-xmppAddr set and then optionally converts this form ASN.1 to a string/char*.

When res pointer is set to NULL this method doesn't allocate the result but only checks whether it is in the correct format.

Parameters

name	Pointer to the GENERAL_NAME that shall be converted
res	Result-pointer (optional, can be NULL)

Returns

classic Unix style - 0=success, 1=error

_tls_dnsname_to_string()

static int _tls_dnsname_to_string ( GENERAL_NAME *  name, char **  res  )

static

_tls_conn_get_names()

static GENERAL_NAMES * _tls_conn_get_names ( xmpp_conn_t *  conn )

static

_tls_cert_get_names()

static GENERAL_NAMES * _tls_cert_get_names ( X509 *  client_cert )

static

tls_initialize()

void tls_initialize

(

void

)

tls_shutdown()

void tls_shutdown

(

void

)

tls_error()

int tls_error

(

tls_t *

tls

)

tls_id_on_xmppaddr()

char * tls_id_on_xmppaddr	(	xmpp_conn_t *	conn,
		unsigned int	n
	)

Search through the SubjectAlternativeNames and return the next id-on-xmppAddr element starting from n.

tls_id_on_xmppaddr_num()

unsigned int tls_id_on_xmppaddr_num

(

xmpp_conn_t *

conn

)

_convert_ASN1TIME()

static int _convert_ASN1TIME ( ASN1_TIME *  ansi_time, char *  buf, size_t  len  )

static

_asn1_time_to_str()

static char * _asn1_time_to_str ( const xmpp_ctx_t *  ctx, ASN1_TIME *  t  )

static

_get_fingerprint()

static char * _get_fingerprint ( const xmpp_ctx_t *  ctx, X509 *  err_cert, xmpp_cert_element_t  el  )

static

_get_alg()

static char * _get_alg ( const xmpp_ctx_t *  ctx, X509 *  err_cert, xmpp_cert_element_t  el  )

static

_x509_to_tlscert()

static xmpp_tlscert_t * _x509_to_tlscert ( xmpp_ctx_t *  ctx, X509 *  cert  )

static

_tls_verify()

static int _tls_verify ( int  preverify_ok, X509_STORE_CTX *  x509_ctx  )

static

tls_new()

tls_t * tls_new

(

xmpp_conn_t *

conn

)

tls_free()

void tls_free

(

tls_t *

tls

)

tls_peer_cert()

xmpp_tlscert_t * tls_peer_cert

(

xmpp_conn_t *

conn

)

tls_set_credentials()

int tls_set_credentials	(	tls_t *	tls,
		const char *	cafilename
	)

tls_start()

int tls_start

(

tls_t *

tls

)

tls_stop()

int tls_stop

(

tls_t *

tls

)

tls_is_recoverable()

int tls_is_recoverable

(

int

error

)

tls_pending()

int tls_pending

(

tls_t *

tls

)

tls_read()

int tls_read	(	tls_t *	tls,
		void *	buff,
		size_t	len
	)

tls_write()

int tls_write	(	tls_t *	tls,
		const void *	buff,
		size_t	len
	)

tls_clear_pending_write()

int tls_clear_pending_write

(

tls_t *

tls

)

Variable Documentation

tls_errors

const char* tls_errors[]

Initial value:

= {
    TLS_ERROR_FIELD(SSL_ERROR_NONE),
    TLS_ERROR_FIELD(SSL_ERROR_SSL),
    TLS_ERROR_FIELD(SSL_ERROR_WANT_READ),
    TLS_ERROR_FIELD(SSL_ERROR_WANT_WRITE),
    TLS_ERROR_FIELD(SSL_ERROR_WANT_X509_LOOKUP),
    TLS_ERROR_FIELD(SSL_ERROR_SYSCALL),
    TLS_ERROR_FIELD(SSL_ERROR_ZERO_RETURN),
    TLS_ERROR_FIELD(SSL_ERROR_WANT_CONNECT),
    TLS_ERROR_FIELD(SSL_ERROR_WANT_ACCEPT),
 
 
 
 
 
 
 
 
 
}

cert_errors

const char* cert_errors[]