external/boringssl: Sync to 2c1523733a71166943e52da11ac2eae82b0227b8.
This includes the following changes:
https://boringssl.googlesource.com/boringssl/+log/2c45fa0b90f61b27973fa81893e014fc8c8e8999..2c1523733a71166943e52da11ac2eae82b0227b8
Test: Boringssl CTS Presubmits
Change-Id: I3dd86f480a6498f78b7b0cce8278179b7201107c
diff --git a/src/crypto/rand_extra/fuchsia.c b/src/crypto/rand_extra/fuchsia.c
new file mode 100644
index 0000000..fae2989
--- /dev/null
+++ b/src/crypto/rand_extra/fuchsia.c
@@ -0,0 +1,43 @@
+/* Copyright (c) 2017, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/rand.h>
+
+#if defined(OPENSSL_FUCHSIA) && !defined(BORINGSSL_UNSAFE_DETERMINISTIC_MODE)
+
+#include <limits.h>
+#include <stdlib.h>
+
+#include <magenta/syscalls.h>
+
+#include "../fipsmodule/rand/internal.h"
+
+void CRYPTO_sysrand(uint8_t *out, size_t requested) {
+ while (requested > 0) {
+ size_t output_bytes_this_pass = MX_CPRNG_DRAW_MAX_LEN;
+ if (requested < output_bytes_this_pass) {
+ output_bytes_this_pass = requested;
+ }
+ size_t bytes_drawn;
+ mx_status_t status =
+ mx_cprng_draw(out, output_bytes_this_pass, &bytes_drawn);
+ if (status != NO_ERROR) {
+ abort();
+ }
+ requested -= bytes_drawn;
+ out += bytes_drawn;
+ }
+}
+
+#endif /* OPENSSL_FUCHSIA && !BORINGSSL_UNSAFE_DETERMINISTIC_MODE */