1// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
2// for details. All rights reserved. Use of this source code is governed by a
3// BSD-style license that can be found in the LICENSE file.
4
5#if !defined(DART_IO_SECURE_SOCKET_DISABLED)
6
7#include "platform/globals.h"
8#if defined(HOST_OS_ANDROID)
9
10#include "bin/security_context.h"
11
12#include <openssl/bio.h>
13#include <openssl/ssl.h>
14#include <openssl/x509.h>
15
16#include "bin/directory.h"
17#include "bin/file.h"
18#include "bin/secure_socket_filter.h"
19#include "bin/secure_socket_utils.h"
20#include "platform/syslog.h"
21
22namespace dart {
23namespace bin {
24
25// The security context won't necessarily use the compiled-in root certificates,
26// but since there is no way to update the size of the allocation after creating
27// the weak persistent handle, we assume that it will. Note that when the
28// root certs aren't compiled in, |root_certificates_pem_length| is 0.
29const intptr_t SSLCertContext::kApproximateSize =
30 sizeof(SSLCertContext) + root_certificates_pem_length;
31
32void SSLCertContext::TrustBuiltinRoots() {
33 // First, try to use locations specified on the command line.
34 if (root_certs_file() != NULL) {
35 LoadRootCertFile(root_certs_file());
36 return;
37 }
38 if (root_certs_cache() != NULL) {
39 LoadRootCertCache(root_certs_cache());
40 return;
41 }
42
43 // On Android, we don't compile in the trusted root certificates. Insead,
44 // we use the directory of trusted certificates already present on the device.
45 // This saves ~240KB from the size of the binary. This has the drawback that
46 // SSL_do_handshake will synchronously hit the filesystem looking for root
47 // certs during its trust evaluation. We call SSL_do_handshake directly from
48 // the Dart thread so that Dart code can be invoked from the "bad certificate"
49 // callback called by SSL_do_handshake.
50 const char* android_cacerts = "/system/etc/security/cacerts";
51 LoadRootCertCache(android_cacerts);
52 return;
53}
54
55void SSLCertContext::RegisterCallbacks(SSL* ssl) {
56 // No callbacks to register for implementations using BoringSSL's built-in
57 // verification mechanism.
58}
59
60} // namespace bin
61} // namespace dart
62
63#endif // defined(HOST_OS_ANDROID)
64
65#endif // !defined(DART_IO_SECURE_SOCKET_DISABLED)
66