1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_BASE_SERVER_BOUND_CERT_SERVICE_H_
#define NET_BASE_SERVER_BOUND_CERT_SERVICE_H_
#pragma once
#include <map>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/threading/non_thread_safe.h"
#include "base/time.h"
#include "net/base/completion_callback.h"
#include "net/base/net_export.h"
#include "net/base/ssl_client_cert_type.h"
namespace base {
class TaskRunner;
}
namespace net {
class ServerBoundCertServiceJob;
class ServerBoundCertServiceWorker;
class ServerBoundCertStore;
// A class for creating and fetching server bound certs.
// Inherits from NonThreadSafe in order to use the function
// |CalledOnValidThread|.
class NET_EXPORT ServerBoundCertService
: NON_EXPORTED_BASE(public base::NonThreadSafe) {
public:
// Opaque type used to cancel a request.
typedef void* RequestHandle;
// Password used on EncryptedPrivateKeyInfo data stored in EC private_key
// values. (This is not used to provide any security, but to workaround NSS
// being unable to import unencrypted PrivateKeyInfo for EC keys.)
static const char kEPKIPassword[];
// This object owns |server_bound_cert_store|. |task_runner| will
// be used to post certificate generation worker tasks. The tasks are
// safe for use with WorkerPool and SequencedWorkerPool::CONTINUE_ON_SHUTDOWN.
ServerBoundCertService(
ServerBoundCertStore* server_bound_cert_store,
const scoped_refptr<base::TaskRunner>& task_runner);
~ServerBoundCertService();
// Returns the domain to be used for |host|. The domain is the
// "registry controlled domain", or the "ETLD + 1" where one exists, or
// the origin otherwise.
static std::string GetDomainForHost(const std::string& host);
// Fetches the domain bound cert for the specified origin of the specified
// type if one exists and creates one otherwise. Returns OK if successful or
// an error code upon failure.
//
// |requested_types| is a list of the TLS ClientCertificateTypes the site will
// accept, ordered from most preferred to least preferred. Types we don't
// support will be ignored. See ssl_client_cert_type.h.
//
// On successful completion, |private_key| stores a DER-encoded
// PrivateKeyInfo struct, and |cert| stores a DER-encoded certificate, and
// |type| specifies the type of certificate that was returned.
//
// |callback| must not be null. ERR_IO_PENDING is returned if the operation
// could not be completed immediately, in which case the result code will
// be passed to the callback when available.
//
// |*out_req| will be filled with a handle to the async request. This handle
// is not valid after the request has completed.
int GetDomainBoundCert(
const std::string& origin,
const std::vector<uint8>& requested_types,
SSLClientCertType* type,
std::string* private_key,
std::string* cert,
const CompletionCallback& callback,
RequestHandle* out_req);
// Cancels the specified request. |req| is the handle returned by
// GetDomainBoundCert(). After a request is canceled, its completion
// callback will not be called.
void CancelRequest(RequestHandle req);
// Returns the backing ServerBoundCertStore.
ServerBoundCertStore* GetCertStore();
// Public only for unit testing.
int cert_count();
uint64 requests() const { return requests_; }
uint64 cert_store_hits() const { return cert_store_hits_; }
uint64 inflight_joins() const { return inflight_joins_; }
private:
friend class ServerBoundCertServiceWorker; // Calls HandleResult.
// On success, |private_key| stores a DER-encoded PrivateKeyInfo
// struct, |cert| stores a DER-encoded certificate, |creation_time| stores the
// start of the validity period of the certificate and |expiration_time|
// stores the expiration time of the certificate. Returns OK if successful and
// an error code otherwise.
// |serial_number| is passed in because it is created with the function
// base::RandInt, which opens the file /dev/urandom. /dev/urandom is opened
// with a LazyInstance, which is not allowed on a worker thread.
static int GenerateCert(const std::string& server_identifier,
SSLClientCertType type,
uint32 serial_number,
base::Time* creation_time,
base::Time* expiration_time,
std::string* private_key,
std::string* cert);
void HandleResult(const std::string& server_identifier,
int error,
SSLClientCertType type,
base::Time creation_time,
base::Time expiration_time,
const std::string& private_key,
const std::string& cert);
scoped_ptr<ServerBoundCertStore> server_bound_cert_store_;
scoped_refptr<base::TaskRunner> task_runner_;
// inflight_ maps from a server to an active generation which is taking
// place.
std::map<std::string, ServerBoundCertServiceJob*> inflight_;
uint64 requests_;
uint64 cert_store_hits_;
uint64 inflight_joins_;
DISALLOW_COPY_AND_ASSIGN(ServerBoundCertService);
};
} // namespace net
#endif // NET_BASE_SERVER_BOUND_CERT_SERVICE_H_
|
