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#include <openssl/crypto.h>
/*
* Threaded operation requires locking callbacks
* Based from /crypto/cryptlib.c of OpenSSL and NSOpenSSL.
*/
#ifndef CRYPTO_NUM_LOCKS
#define CRYPTO_NUM_LOCKS 128
#endif
static Tcl_Mutex locks[CRYPTO_NUM_LOCKS];
static Tcl_Mutex init_mx;
static void CryptoThreadLockCallback (int mode, int n, const char *file, int line);
static unsigned long CryptoThreadIdCallback (void);
static void
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*/
static int
VerifyCallback(int ok, X509_STORE_CTX *ctx)
{
Tcl_Obj *cmdPtr, *result;
char *errStr, *string;
int length;
SSL *ssl = (SSL*)X509_STORE_CTX_get_app_data(ctx);
SSL *ssl = (SSL*)X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
X509 *cert = X509_STORE_CTX_get_current_cert(ctx);
State *statePtr = (State*)SSL_get_app_data(ssl);
int depth = X509_STORE_CTX_get_error_depth(ctx);
int err = X509_STORE_CTX_get_error(ctx);
dprintf("Verify: %d", ok);
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*
*------------------------------------------------------*
*/
static int TlsLibInit (void) {
static int initialized = 0;
int i;
char rnd_seed[16] = "GrzSlplKqUdnnzP!"; /* 16 bytes */
int status=TCL_OK;
int status = TCL_OK;
if (initialized) {
return status;
return(status);
}
initialized = 1;
#if defined(OPENSSL_THREADS) && defined(TCL_THREADS)
size_t num_locks;
Tcl_MutexLock(&init_mx);
#endif
if (CRYPTO_set_mem_functions((void *(*)(size_t))Tcl_Alloc,
(void *(*)(void *, size_t))Tcl_Realloc,
(void(*)(void *))Tcl_Free) == 0) {
/* Not using Tcl's mem functions ... not critical */
}
/* should we consider allocating mutexes? */
num_locks = CRYPTO_num_locks();
if (num_locks > CRYPTO_NUM_LOCKS) {
status=TCL_ERROR;
goto done;
}
CRYPTO_set_locking_callback(CryptoThreadLockCallback);
CRYPTO_set_id_callback(CryptoThreadIdCallback);
if (SSL_library_init() != 1) {
status=TCL_ERROR;
goto done;
}
SSL_load_error_strings();
ERR_load_crypto_strings();
/*
* Seed the random number generator in the SSL library,
* using the do/while construct because of the bug note in the
* OpenSSL FAQ at http://www.openssl.org/support/faq.html#USER1
*
* The crux of the problem is that Solaris 7 does not have a
* /dev/random or /dev/urandom device so it cannot gather enough
* entropy from the RAND_seed() when TLS initializes and refuses
* to go further. Earlier versions of OpenSSL carried on regardless.
*/
srand((unsigned int) time((time_t *) NULL));
do {
for (i = 0; i < 16; i++) {
rnd_seed[i] = 1 + (char) (255.0 * rand()/(RAND_MAX+1.0));
}
RAND_seed(rnd_seed, sizeof(rnd_seed));
} while (RAND_status() != 1);
Tcl_MutexUnlock(&init_mx);
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