Functions | Variables
crypto_openssl_mgt.c File Reference
#include "lib/crypt_ops/compat_openssl.h"
#include "lib/crypt_ops/crypto_openssl_mgt.h"
#include "lib/crypt_ops/crypto_rand.h"
#include "lib/crypt_ops/aes.h"
#include "lib/string/util_string.h"
#include "lib/lock/compat_mutex.h"
#include "lib/log/log.h"
#include "lib/log/util_bug.h"
#include "lib/testsupport/testsupport.h"
#include "lib/thread/threads.h"
#include <openssl/err.h>
#include <openssl/rsa.h>
#include <openssl/pem.h>
#include <openssl/evp.h>
#include <openssl/engine.h>
#include <openssl/rand.h>
#include <openssl/bn.h>
#include <openssl/dh.h>
#include <openssl/conf.h>
#include <openssl/hmac.h>
#include <openssl/crypto.h>
#include <openssl/ssl.h>
#include <string.h>

Go to the source code of this file.


STATIC char * parse_openssl_version_str (const char *raw_version)
STATIC void openssl_locking_cb_ (int mode, int n, const char *file, int line)
STATIC void tor_set_openssl_thread_id (CRYPTO_THREADID *threadid)
void crypto_openssl_log_errors (int severity, const char *doing)
const char * crypto_openssl_get_version_str (void)
const char * crypto_openssl_get_header_version_str (void)
static int setup_openssl_threading (void)
static void crypto_openssl_free_all (void)
void crypto_openssl_early_init (void)
static ENGINE * try_load_engine (const char *path, const char *engine)
static void log_engine (const char *fn, ENGINE *e)
static void crypto_openssl_init_engines (const char *accelName, const char *accelDir)
int crypto_openssl_late_init (int useAccel, const char *accelName, const char *accelDir)
void crypto_openssl_thread_cleanup (void)
void crypto_openssl_global_cleanup (void)


static tor_mutex_t ** openssl_mutexes_ = NULL
static int n_openssl_mutexes_ = 0
static char * crypto_openssl_version_str = NULL
static char * crypto_openssl_header_version_str = NULL

Detailed Description

Block of functions related to operations from OpenSSL.

Definition in file crypto_openssl_mgt.c.

Function Documentation

◆ crypto_openssl_early_init()

void crypto_openssl_early_init ( void  )

Perform early (pre-configuration) initialization tasks for OpenSSL.

Definition at line 196 of file crypto_openssl_mgt.c.

References setup_openssl_threading().

Referenced by crypto_early_init().

◆ crypto_openssl_free_all()

static void crypto_openssl_free_all ( void  )

free OpenSSL variables

Definition at line 174 of file crypto_openssl_mgt.c.

References tor_free.

Referenced by crypto_openssl_global_cleanup().

◆ crypto_openssl_global_cleanup()

void crypto_openssl_global_cleanup ( void  )

Clean up global resources held by openssl.

Definition at line 374 of file crypto_openssl_mgt.c.

References crypto_openssl_free_all().

◆ crypto_openssl_init_engines()

static void crypto_openssl_init_engines ( const char *  accelName,
const char *  accelDir 

Initialize engines for openssl (if enabled).

Definition at line 274 of file crypto_openssl_mgt.c.

Referenced by crypto_openssl_late_init().

◆ crypto_openssl_late_init()

int crypto_openssl_late_init ( int  useAccel,
const char *  accelName,
const char *  accelDir 

Perform late (post-init) initialization tasks for OpenSSL

Definition at line 343 of file crypto_openssl_mgt.c.

References crypto_openssl_init_engines().

◆ crypto_openssl_log_errors()

void crypto_openssl_log_errors ( int  severity,
const char *  doing 

Log all pending crypto errors at level severity. Use doing to describe our current activities.

Definition at line 61 of file crypto_openssl_mgt.c.

Referenced by crypto_dh_generate_public(), and new_openssl_dh_from_params().

◆ crypto_openssl_thread_cleanup()

void crypto_openssl_thread_cleanup ( void  )

Free crypto resources held by this thread.

Definition at line 365 of file crypto_openssl_mgt.c.

Referenced by crypto_thread_cleanup().

◆ log_engine()

static void log_engine ( const char *  fn,
ENGINE *  e 

Log any OpenSSL engines we're using at NOTICE.

Definition at line 258 of file crypto_openssl_mgt.c.

◆ openssl_locking_cb_()

STATIC void openssl_locking_cb_ ( int  mode,
int  n,
const char *  file,
int  line 

Helper: OpenSSL uses this callback to manipulate mutexes.

Definition at line 132 of file crypto_openssl_mgt.c.

References openssl_mutexes_, tor_mutex_acquire(), and tor_mutex_release().

◆ parse_openssl_version_str()

STATIC char * parse_openssl_version_str ( const char *  raw_version)

Declare STATIC functions

Definition at line 82 of file crypto_openssl_mgt.c.

References strcmpstart().

◆ setup_openssl_threading()

static int setup_openssl_threading ( void  )

Helper: Construct mutexes, and set callbacks to help OpenSSL handle being multithreaded. Returns 0.

Definition at line 157 of file crypto_openssl_mgt.c.

References n_openssl_mutexes_, and openssl_mutexes_.

Referenced by crypto_openssl_early_init().

◆ try_load_engine()

static ENGINE* try_load_engine ( const char *  path,
const char *  engine 

Try to load an engine in a shared library via fully qualified path.

Definition at line 239 of file crypto_openssl_mgt.c.

Variable Documentation

◆ n_openssl_mutexes_

int n_openssl_mutexes_ = 0

How many mutexes have we allocated for use by OpenSSL?

Definition at line 47 of file crypto_openssl_mgt.c.

Referenced by setup_openssl_threading().

◆ openssl_mutexes_

tor_mutex_t** openssl_mutexes_ = NULL

A number of preallocated mutexes for use by OpenSSL.

Definition at line 45 of file crypto_openssl_mgt.c.

Referenced by openssl_locking_cb_(), and setup_openssl_threading().