BoringSSL as optional cryptobackend for ngtcp2

PR добавляет возможность использовать BoringSSL в ngtcp2 в качестве криптобиблиотеки. Для проектов в Аркадии, уже зависящих от ngtcp2, добавлена явная зависимость от слоя абстракции quictls (сейчас в транке ngtcp2 собирается с quictls).
commit_hash:3d6607abecfcff2157859acbdd18f9d0345ac485

1 files changed, 34 insertions, 0 deletions

diff --git a/contrib/restricted/google/boringssl/crypto/rand_extra/ios.c b/contrib/restricted/google/boringssl/crypto/rand_extra/ios.c
new file mode 100644
index 00000000000..adbaced0ca5
--- /dev/null
+++ b/contrib/restricted/google/boringssl/crypto/rand_extra/ios.c
@@ -0,0 +1,34 @@
+/* Copyright (c) 2023, 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 <contrib/restricted/google/boringssl/include/openssl/rand.h>
+
+#include "../fipsmodule/rand/internal.h"
+
+#if defined(OPENSSL_RAND_IOS)
+#include <stdlib.h>
+
+#include <CommonCrypto/CommonRandom.h>
+
+void CRYPTO_sysrand(uint8_t *out, size_t requested) {
+  if (CCRandomGenerateBytes(out, requested) != kCCSuccess) {
+    abort();
+  }
+}
+
+void CRYPTO_sysrand_for_seed(uint8_t *out, size_t requested) {
+  CRYPTO_sysrand(out, requested);
+}
+
+#endif  // OPENSSL_RAND_IOS