Imported Upstream version 4.8.0.309

Former-commit-id: 5f9c6ae75f295e057a7d2971f3a6df4656fa8850
2016-11-10 13:04:39 +00:00
parent ee1447783b
commit 94b2861243
4912 changed files with 390737 additions and 49310 deletions
--- a/external/boringssl/ssl/s3_enc.c
+++ b/external/boringssl/ssl/s3_enc.c
@@ -0,0 +1,394 @@
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * 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 (tjh@cryptsoft.com).
+ *
+ * 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 (eay@cryptsoft.com)"
+ *    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 (tjh@cryptsoft.com)"
+ *
+ * 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.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2007 The OpenSSL Project.  All rights reserved.
+ *
+ * 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 above 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 acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2005 Nokia. All rights reserved.
+ *
+ * The portions of the attached software ("Contribution") is developed by
+ * Nokia Corporation and is licensed pursuant to the OpenSSL open source
+ * license.
+ *
+ * The Contribution, originally written by Mika Kousa and Pasi Eronen of
+ * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
+ * support (see RFC 4279) to OpenSSL.
+ *
+ * No patent licenses or other rights except those expressly stated in
+ * the OpenSSL open source license shall be deemed granted or received
+ * expressly, by implication, estoppel, or otherwise.
+ *
+ * No assurances are provided by Nokia that the Contribution does not
+ * infringe the patent or other intellectual property rights of any third
+ * party or that the license provides you with all the necessary rights
+ * to make use of the Contribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
+ * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
+ * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
+ * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
+ * OTHERWISE. */
+
+#include <openssl/ssl.h>
+
+#include <assert.h>
+#include <string.h>
+
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/mem.h>
+#include <openssl/md5.h>
+#include <openssl/nid.h>
+
+#include "internal.h"
+
+
+static int ssl3_handshake_mac(SSL *ssl, int md_nid, const char *sender,
+                              size_t sender_len, uint8_t *p);
+
+static int ssl3_prf(const SSL *ssl, uint8_t *out, size_t out_len,
+                    const uint8_t *secret, size_t secret_len, const char *label,
+                    size_t label_len, const uint8_t *seed1, size_t seed1_len,
+                    const uint8_t *seed2, size_t seed2_len) {
+  EVP_MD_CTX md5;
+  EVP_MD_CTX sha1;
+  uint8_t buf[16], smd[SHA_DIGEST_LENGTH];
+  uint8_t c = 'A';
+  size_t i, j, k;
+
+  k = 0;
+  EVP_MD_CTX_init(&md5);
+  EVP_MD_CTX_init(&sha1);
+  for (i = 0; i < out_len; i += MD5_DIGEST_LENGTH) {
+    k++;
+    if (k > sizeof(buf)) {
+      /* bug: 'buf' is too small for this ciphersuite */
+      OPENSSL_PUT_ERROR(SSL, ERR_R_INTERNAL_ERROR);
+      return 0;
+    }
+
+    for (j = 0; j < k; j++) {
+      buf[j] = c;
+    }
+    c++;
+    if (!EVP_DigestInit_ex(&sha1, EVP_sha1(), NULL)) {
+      OPENSSL_PUT_ERROR(SSL, ERR_LIB_EVP);
+      return 0;
+    }
+    EVP_DigestUpdate(&sha1, buf, k);
+    EVP_DigestUpdate(&sha1, secret, secret_len);
+    /* |label| is ignored for SSLv3. */
+    if (seed1_len) {
+      EVP_DigestUpdate(&sha1, seed1, seed1_len);
+    }
+    if (seed2_len) {
+      EVP_DigestUpdate(&sha1, seed2, seed2_len);
+    }
+    EVP_DigestFinal_ex(&sha1, smd, NULL);
+
+    if (!EVP_DigestInit_ex(&md5, EVP_md5(), NULL)) {
+      OPENSSL_PUT_ERROR(SSL, ERR_LIB_EVP);
+      return 0;
+    }
+    EVP_DigestUpdate(&md5, secret, secret_len);
+    EVP_DigestUpdate(&md5, smd, SHA_DIGEST_LENGTH);
+    if (i + MD5_DIGEST_LENGTH > out_len) {
+      EVP_DigestFinal_ex(&md5, smd, NULL);
+      memcpy(out, smd, out_len - i);
+    } else {
+      EVP_DigestFinal_ex(&md5, out, NULL);
+    }
+
+    out += MD5_DIGEST_LENGTH;
+  }
+
+  OPENSSL_cleanse(smd, SHA_DIGEST_LENGTH);
+  EVP_MD_CTX_cleanup(&md5);
+  EVP_MD_CTX_cleanup(&sha1);
+
+  return 1;
+}
+
+void ssl3_cleanup_key_block(SSL *ssl) {
+  if (ssl->s3->tmp.key_block != NULL) {
+    OPENSSL_cleanse(ssl->s3->tmp.key_block, ssl->s3->tmp.key_block_length);
+    OPENSSL_free(ssl->s3->tmp.key_block);
+    ssl->s3->tmp.key_block = NULL;
+  }
+  ssl->s3->tmp.key_block_length = 0;
+}
+
+int ssl3_init_handshake_buffer(SSL *ssl) {
+  ssl3_free_handshake_buffer(ssl);
+  ssl3_free_handshake_hash(ssl);
+  ssl->s3->handshake_buffer = BUF_MEM_new();
+  return ssl->s3->handshake_buffer != NULL;
+}
+
+/* init_digest_with_data calls |EVP_DigestInit_ex| on |ctx| with |md| and then
+ * writes the data in |buf| to it. */
+static int init_digest_with_data(EVP_MD_CTX *ctx, const EVP_MD *md,
+                                 const BUF_MEM *buf) {
+  if (!EVP_DigestInit_ex(ctx, md, NULL)) {
+    return 0;
+  }
+  EVP_DigestUpdate(ctx, buf->data, buf->length);
+  return 1;
+}
+
+int ssl3_init_handshake_hash(SSL *ssl) {
+  ssl3_free_handshake_hash(ssl);
+
+  uint32_t algorithm_prf = ssl_get_algorithm_prf(ssl);
+  if (!init_digest_with_data(&ssl->s3->handshake_hash,
+                             ssl_get_handshake_digest(algorithm_prf),
+                             ssl->s3->handshake_buffer)) {
+    return 0;
+  }
+
+  if (algorithm_prf == SSL_HANDSHAKE_MAC_DEFAULT &&
+      !init_digest_with_data(&ssl->s3->handshake_md5, EVP_md5(),
+                             ssl->s3->handshake_buffer)) {
+    return 0;
+  }
+
+  return 1;
+}
+
+void ssl3_free_handshake_hash(SSL *ssl) {
+  EVP_MD_CTX_cleanup(&ssl->s3->handshake_hash);
+  EVP_MD_CTX_cleanup(&ssl->s3->handshake_md5);
+}
+
+void ssl3_free_handshake_buffer(SSL *ssl) {
+  BUF_MEM_free(ssl->s3->handshake_buffer);
+  ssl->s3->handshake_buffer = NULL;
+}
+
+int ssl3_update_handshake_hash(SSL *ssl, const uint8_t *in, size_t in_len) {
+  /* Depending on the state of the handshake, either the handshake buffer may be
+   * active, the rolling hash, or both. */
+
+  if (ssl->s3->handshake_buffer != NULL) {
+    size_t new_len = ssl->s3->handshake_buffer->length + in_len;
+    if (new_len < in_len) {
+      OPENSSL_PUT_ERROR(SSL, ERR_R_OVERFLOW);
+      return 0;
+    }
+    if (!BUF_MEM_grow(ssl->s3->handshake_buffer, new_len)) {
+      return 0;
+    }
+    memcpy(ssl->s3->handshake_buffer->data + new_len - in_len, in, in_len);
+  }
+
+  if (EVP_MD_CTX_md(&ssl->s3->handshake_hash) != NULL) {
+    EVP_DigestUpdate(&ssl->s3->handshake_hash, in, in_len);
+  }
+  if (EVP_MD_CTX_md(&ssl->s3->handshake_md5) != NULL) {
+    EVP_DigestUpdate(&ssl->s3->handshake_md5, in, in_len);
+  }
+  return 1;
+}
+
+static int ssl3_cert_verify_mac(SSL *ssl, int md_nid, uint8_t *p) {
+  return ssl3_handshake_mac(ssl, md_nid, NULL, 0, p);
+}
+
+static int ssl3_final_finish_mac(SSL *ssl, int from_server, uint8_t *out) {
+  const char *sender = from_server ? SSL3_MD_SERVER_FINISHED_CONST
+                                   : SSL3_MD_CLIENT_FINISHED_CONST;
+  const size_t sender_len = 4;
+  int ret, sha1len;
+  ret = ssl3_handshake_mac(ssl, NID_md5, sender, sender_len, out);
+  if (ret == 0) {
+    return 0;
+  }
+
+  out += ret;
+
+  sha1len = ssl3_handshake_mac(ssl, NID_sha1, sender, sender_len, out);
+  if (sha1len == 0) {
+    return 0;
+  }
+
+  ret += sha1len;
+  return ret;
+}
+
+static int ssl3_handshake_mac(SSL *ssl, int md_nid, const char *sender,
+                              size_t sender_len, uint8_t *p) {
+  unsigned int ret;
+  size_t npad, n;
+  unsigned int i;
+  uint8_t md_buf[EVP_MAX_MD_SIZE];
+  EVP_MD_CTX ctx;
+  const EVP_MD_CTX *ctx_template;
+
+  if (md_nid == NID_md5) {
+    ctx_template = &ssl->s3->handshake_md5;
+  } else if (md_nid == EVP_MD_CTX_type(&ssl->s3->handshake_hash)) {
+    ctx_template = &ssl->s3->handshake_hash;
+  } else {
+    OPENSSL_PUT_ERROR(SSL, SSL_R_NO_REQUIRED_DIGEST);
+    return 0;
+  }
+
+  EVP_MD_CTX_init(&ctx);
+  if (!EVP_MD_CTX_copy_ex(&ctx, ctx_template)) {
+    EVP_MD_CTX_cleanup(&ctx);
+    OPENSSL_PUT_ERROR(SSL, ERR_LIB_EVP);
+    return 0;
+  }
+
+  static const uint8_t kPad1[48] = {
+      0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+      0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+      0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+      0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+  };
+
+  static const uint8_t kPad2[48] = {
+      0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+      0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+      0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+      0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+  };
+
+  n = EVP_MD_CTX_size(&ctx);
+
+  npad = (48 / n) * n;
+  if (sender != NULL) {
+    EVP_DigestUpdate(&ctx, sender, sender_len);
+  }
+  EVP_DigestUpdate(&ctx, ssl->session->master_key,
+                   ssl->session->master_key_length);
+  EVP_DigestUpdate(&ctx, kPad1, npad);
+  EVP_DigestFinal_ex(&ctx, md_buf, &i);
+
+  if (!EVP_DigestInit_ex(&ctx, EVP_MD_CTX_md(&ctx), NULL)) {
+    EVP_MD_CTX_cleanup(&ctx);
+    OPENSSL_PUT_ERROR(SSL, ERR_LIB_EVP);
+    return 0;
+  }
+  EVP_DigestUpdate(&ctx, ssl->session->master_key,
+                   ssl->session->master_key_length);
+  EVP_DigestUpdate(&ctx, kPad2, npad);
+  EVP_DigestUpdate(&ctx, md_buf, i);
+  EVP_DigestFinal_ex(&ctx, p, &ret);
+
+  EVP_MD_CTX_cleanup(&ctx);
+
+  return ret;
+}
+
+
+
+const SSL3_ENC_METHOD SSLv3_enc_data = {
+    ssl3_prf,
+    ssl3_final_finish_mac,
+    ssl3_cert_verify_mac,
+};