[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/lib/libssl/openssl-1.1.1o/test/rdrand_sanitytest.c b/ap/lib/libssl/openssl-1.1.1o/test/rdrand_sanitytest.c
new file mode 100644
index 0000000..906752a
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/test/rdrand_sanitytest.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "testutil.h"
+#include <openssl/opensslconf.h>
+
+#if (defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
+ defined(__x86_64) || defined(__x86_64__) || \
+ defined(_M_AMD64) || defined (_M_X64)) && defined(OPENSSL_CPUID_OBJ)
+
+size_t OPENSSL_ia32_rdrand_bytes(unsigned char *buf, size_t len);
+size_t OPENSSL_ia32_rdseed_bytes(unsigned char *buf, size_t len);
+
+void OPENSSL_cpuid_setup(void);
+
+extern unsigned int OPENSSL_ia32cap_P[4];
+
+static int sanity_check_bytes(size_t (*rng)(unsigned char *, size_t),
+ int rounds, int min_failures, int max_retries, int max_zero_words)
+{
+ int testresult = 0;
+ unsigned char prior[31] = {0}, buf[31] = {0}, check[7];
+ int failures = 0, zero_words = 0;
+
+ int i;
+ for (i = 0; i < rounds; i++) {
+ size_t generated = 0;
+
+ int retry;
+ for (retry = 0; retry < max_retries; retry++) {
+ generated = rng(buf, sizeof(buf));
+ if (generated == sizeof(buf))
+ break;
+ failures++;
+ }
+
+ /*-
+ * Verify that we don't have too many unexpected runs of zeroes,
+ * implying that we might be accidentally using the 32-bit RDRAND
+ * instead of the 64-bit one on 64-bit systems.
+ */
+ size_t j;
+ for (j = 0; j < sizeof(buf) - 1; j++) {
+ if (buf[j] == 0 && buf[j+1] == 0) {
+ zero_words++;
+ }
+ }
+
+ if (!TEST_int_eq(generated, sizeof(buf)))
+ goto end;
+ if (!TEST_false(!memcmp(prior, buf, sizeof(buf))))
+ goto end;
+
+ /* Verify that the last 7 bytes of buf aren't all the same value */
+ unsigned char *tail = &buf[sizeof(buf) - sizeof(check)];
+ memset(check, tail[0], 7);
+ if (!TEST_false(!memcmp(check, tail, sizeof(check))))
+ goto end;
+
+ /* Save the result and make sure it's different next time */
+ memcpy(prior, buf, sizeof(buf));
+ }
+
+ if (!TEST_int_le(zero_words, max_zero_words))
+ goto end;
+
+ if (!TEST_int_ge(failures, min_failures))
+ goto end;
+
+ testresult = 1;
+end:
+ return testresult;
+}
+
+static int sanity_check_rdrand_bytes(void)
+{
+ return sanity_check_bytes(OPENSSL_ia32_rdrand_bytes, 1000, 0, 10, 10);
+}
+
+static int sanity_check_rdseed_bytes(void)
+{
+ /*-
+ * RDSEED may take many retries to succeed; note that this is effectively
+ * multiplied by the 8x retry loop in asm, and failure probabilities are
+ * increased by the fact that we need either 4 or 8 samples depending on
+ * the platform.
+ */
+ return sanity_check_bytes(OPENSSL_ia32_rdseed_bytes, 1000, 1, 10000, 10);
+}
+
+int setup_tests(void)
+{
+ OPENSSL_cpuid_setup();
+
+ int have_rdseed = (OPENSSL_ia32cap_P[2] & (1 << 18)) != 0;
+ int have_rdrand = (OPENSSL_ia32cap_P[1] & (1 << (62 - 32))) != 0;
+
+ if (have_rdrand) {
+ ADD_TEST(sanity_check_rdrand_bytes);
+ }
+
+ if (have_rdseed) {
+ ADD_TEST(sanity_check_rdseed_bytes);
+ }
+
+ return 1;
+}
+
+
+#else
+
+int setup_tests(void)
+{
+ return 1;
+}
+
+#endif