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, 137 insertions, 0 deletions

diff --git a/contrib/restricted/google/boringssl/include/openssl/buf.h b/contrib/restricted/google/boringssl/include/openssl/buf.h
new file mode 100644
index 00000000000..13ce8f9dda4
--- /dev/null
+++ b/contrib/restricted/google/boringssl/include/openssl/buf.h
@@ -0,0 +1,137 @@
+/* Copyright (C) 1995-1998 Eric Young ([email protected])
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young ([email protected]).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson ([email protected]).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young ([email protected])"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson ([email protected])"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.] */
+
+#ifndef OPENSSL_HEADER_BUFFER_H
+#define OPENSSL_HEADER_BUFFER_H
+
+#include <contrib/restricted/google/boringssl/include/openssl/base.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+
+// Memory and string functions, see also mem.h.
+
+
+// buf_mem_st (aka |BUF_MEM|) is a generic buffer object used by OpenSSL.
+struct buf_mem_st {
+  size_t length;  // current number of bytes
+  char *data;
+  size_t max;  // size of buffer
+};
+
+// BUF_MEM_new creates a new BUF_MEM which has no allocated data buffer.
+OPENSSL_EXPORT BUF_MEM *BUF_MEM_new(void);
+
+// BUF_MEM_free frees |buf->data| if needed and then frees |buf| itself.
+OPENSSL_EXPORT void BUF_MEM_free(BUF_MEM *buf);
+
+// BUF_MEM_reserve ensures |buf| has capacity |cap| and allocates memory if
+// needed. It returns one on success and zero on error.
+OPENSSL_EXPORT int BUF_MEM_reserve(BUF_MEM *buf, size_t cap);
+
+// BUF_MEM_grow ensures that |buf| has length |len| and allocates memory if
+// needed. If the length of |buf| increased, the new bytes are filled with
+// zeros. It returns the length of |buf|, or zero if there's an error.
+OPENSSL_EXPORT size_t BUF_MEM_grow(BUF_MEM *buf, size_t len);
+
+// BUF_MEM_grow_clean calls |BUF_MEM_grow|. BoringSSL always zeros memory
+// allocated memory on free.
+OPENSSL_EXPORT size_t BUF_MEM_grow_clean(BUF_MEM *buf, size_t len);
+
+// BUF_MEM_append appends |in| to |buf|. It returns one on success and zero on
+// error.
+OPENSSL_EXPORT int BUF_MEM_append(BUF_MEM *buf, const void *in, size_t len);
+
+
+// Deprecated functions.
+
+// BUF_strdup calls |OPENSSL_strdup|.
+OPENSSL_EXPORT char *BUF_strdup(const char *str);
+
+// BUF_strnlen calls |OPENSSL_strnlen|.
+OPENSSL_EXPORT size_t BUF_strnlen(const char *str, size_t max_len);
+
+// BUF_strndup calls |OPENSSL_strndup|.
+OPENSSL_EXPORT char *BUF_strndup(const char *str, size_t size);
+
+// BUF_memdup calls |OPENSSL_memdup|.
+OPENSSL_EXPORT void *BUF_memdup(const void *data, size_t size);
+
+// BUF_strlcpy calls |OPENSSL_strlcpy|.
+OPENSSL_EXPORT size_t BUF_strlcpy(char *dst, const char *src, size_t dst_size);
+
+// BUF_strlcat calls |OPENSSL_strlcat|.
+OPENSSL_EXPORT size_t BUF_strlcat(char *dst, const char *src, size_t dst_size);
+
+
+#if defined(__cplusplus)
+}  // extern C
+
+extern "C++" {
+
+BSSL_NAMESPACE_BEGIN
+
+BORINGSSL_MAKE_DELETER(BUF_MEM, BUF_MEM_free)
+
+BSSL_NAMESPACE_END
+
+}  // extern C++
+
+#endif
+
+#endif  // OPENSSL_HEADER_BUFFER_H