*/
#include <stdio.h>
-#include "cryptlib.h"
-#include <sys/types.h>
#include <time.h>
-#include "rand.h"
+#include "cryptlib.h"
+#include <openssl/rand.h>
+#include "rand_lcl.h"
+#ifdef OPENSSL_FIPS
+#include <openssl/fips.h>
+#include <openssl/fips_rand.h>
+#endif
+
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
+
+static const RAND_METHOD *default_RAND_meth = NULL;
+
+#ifdef OPENSSL_FIPS
+
+static int fips_RAND_set_rand_method(const RAND_METHOD *meth,
+ const RAND_METHOD **pmeth)
+ {
+ *pmeth = meth;
+ return 1;
+ }
+
+static const RAND_METHOD *fips_RAND_get_rand_method(const RAND_METHOD **pmeth)
+ {
+ if (!*pmeth)
+ {
+ if(FIPS_mode())
+ *pmeth=FIPS_rand_method();
+ else
+ *pmeth = RAND_SSLeay();
+ }
+
+ if(FIPS_mode()
+ && *pmeth != FIPS_rand_check())
+ {
+ RANDerr(RAND_F_FIPS_RAND_GET_RAND_METHOD,RAND_R_NON_FIPS_METHOD);
+ return 0;
+ }
+
+ return *pmeth;
+ }
+
+static int (*RAND_set_rand_method_func)(const RAND_METHOD *meth,
+ const RAND_METHOD **pmeth)
+ = fips_RAND_set_rand_method;
+static const RAND_METHOD *(*RAND_get_rand_method_func)
+ (const RAND_METHOD **pmeth)
+ = fips_RAND_get_rand_method;
+
+#ifndef OPENSSL_NO_ENGINE
+void int_RAND_set_callbacks(
+ int (*set_rand_func)(const RAND_METHOD *meth,
+ const RAND_METHOD **pmeth),
+ const RAND_METHOD *(*get_rand_func)
+ (const RAND_METHOD **pmeth))
+ {
+ RAND_set_rand_method_func = set_rand_func;
+ RAND_get_rand_method_func = get_rand_func;
+ }
+#endif
+
+int RAND_set_rand_method(const RAND_METHOD *meth)
+ {
+ return RAND_set_rand_method_func(meth, &default_RAND_meth);
+ }
+
+const RAND_METHOD *RAND_get_rand_method(void)
+ {
+ return RAND_get_rand_method_func(&default_RAND_meth);
+ }
-#ifdef NO_RAND
-static RAND_METHOD *rand_meth=NULL;
#else
-extern RAND_METHOD rand_ssleay;
-static RAND_METHOD *rand_meth= &rand_ssleay;
+
+#ifndef OPENSSL_NO_ENGINE
+/* non-NULL if default_RAND_meth is ENGINE-provided */
+static ENGINE *funct_ref =NULL;
#endif
-void RAND_set_rand_method(meth)
-RAND_METHOD *meth;
+int RAND_set_rand_method(const RAND_METHOD *meth)
{
- rand_meth=meth;
+#ifndef OPENSSL_NO_ENGINE
+ if(funct_ref)
+ {
+ ENGINE_finish(funct_ref);
+ funct_ref = NULL;
+ }
+#endif
+ default_RAND_meth = meth;
+ return 1;
}
-RAND_METHOD *RAND_get_rand_method()
+const RAND_METHOD *RAND_get_rand_method(void)
{
- return(rand_meth);
+ if (!default_RAND_meth)
+ {
+#ifndef OPENSSL_NO_ENGINE
+ ENGINE *e = ENGINE_get_default_RAND();
+ if(e)
+ {
+ default_RAND_meth = ENGINE_get_RAND(e);
+ if(!default_RAND_meth)
+ {
+ ENGINE_finish(e);
+ e = NULL;
+ }
+ }
+ if(e)
+ funct_ref = e;
+ else
+#endif
+ default_RAND_meth = RAND_SSLeay();
+ }
+ return default_RAND_meth;
}
-void RAND_cleanup()
+#ifndef OPENSSL_NO_ENGINE
+int RAND_set_rand_engine(ENGINE *engine)
{
- if (rand_meth != NULL)
- rand_meth->cleanup();
+ const RAND_METHOD *tmp_meth = NULL;
+ if(engine)
+ {
+ if(!ENGINE_init(engine))
+ return 0;
+ tmp_meth = ENGINE_get_RAND(engine);
+ if(!tmp_meth)
+ {
+ ENGINE_finish(engine);
+ return 0;
+ }
+ }
+ /* This function releases any prior ENGINE so call it first */
+ RAND_set_rand_method(tmp_meth);
+ funct_ref = engine;
+ return 1;
}
+#endif
-void RAND_seed(buf,num)
-unsigned char *buf;
-int num;
+#endif
+
+void RAND_cleanup(void)
{
- if (rand_meth != NULL)
- rand_meth->seed(buf,num);
+ const RAND_METHOD *meth = RAND_get_rand_method();
+ if (meth && meth->cleanup)
+ meth->cleanup();
+ RAND_set_rand_method(NULL);
}
-void RAND_bytes(buf,num)
-unsigned char *buf;
-int num;
+void RAND_seed(const void *buf, int num)
{
- if (rand_meth != NULL)
- rand_meth->bytes(buf,num);
+ const RAND_METHOD *meth = RAND_get_rand_method();
+ if (meth && meth->seed)
+ meth->seed(buf,num);
}
+void RAND_add(const void *buf, int num, double entropy)
+ {
+ const RAND_METHOD *meth = RAND_get_rand_method();
+ if (meth && meth->add)
+ meth->add(buf,num,entropy);
+ }
+
+int RAND_bytes(unsigned char *buf, int num)
+ {
+ const RAND_METHOD *meth = RAND_get_rand_method();
+ if (meth && meth->bytes)
+ return meth->bytes(buf,num);
+ return(-1);
+ }
+
+int RAND_pseudo_bytes(unsigned char *buf, int num)
+ {
+ const RAND_METHOD *meth = RAND_get_rand_method();
+ if (meth && meth->pseudorand)
+ return meth->pseudorand(buf,num);
+ return(-1);
+ }
+
+int RAND_status(void)
+ {
+ const RAND_METHOD *meth = RAND_get_rand_method();
+ if (meth && meth->status)
+ return meth->status();
+ return 0;
+ }