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Side by Side Diff: net/ssl/ssl_config_service.h

Issue 208713004: Move SSLConfig class from ssl_config_service.h to ssl_config.h (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 9 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef NET_SSL_SSL_CONFIG_SERVICE_H_ 5 #ifndef NET_SSL_SSL_CONFIG_SERVICE_H_
6 #define NET_SSL_SSL_CONFIG_SERVICE_H_ 6 #define NET_SSL_SSL_CONFIG_SERVICE_H_
7 7
8 #include <vector> 8 #include <vector>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
11 #include "base/memory/ref_counted.h" 11 #include "base/memory/ref_counted.h"
12 #include "base/observer_list.h" 12 #include "base/observer_list.h"
13 #include "base/strings/string_piece.h" 13 #include "base/strings/string_piece.h"
14 #include "net/base/net_export.h" 14 #include "net/base/net_export.h"
15 #include "net/cert/cert_status_flags.h" 15 #include "net/cert/cert_status_flags.h"
wtc 2014/03/22 01:29:41 We should be able to remove "base/basictypes.h",
Sergey Ulanov 2014/03/22 01:49:00 Done.
16 #include "net/cert/crl_set.h" 16 #include "net/cert/crl_set.h"
17 #include "net/cert/x509_certificate.h" 17 #include "net/ssl/ssl_config.h"
18 18
19 namespace net { 19 namespace net {
20 20
21 // Various TLS/SSL ProtocolVersion values encoded as uint16
22 // struct {
23 // uint8 major;
24 // uint8 minor;
25 // } ProtocolVersion;
26 // The most significant byte is |major|, and the least significant byte
27 // is |minor|.
28 enum {
29 SSL_PROTOCOL_VERSION_SSL3 = 0x0300,
30 SSL_PROTOCOL_VERSION_TLS1 = 0x0301,
31 SSL_PROTOCOL_VERSION_TLS1_1 = 0x0302,
32 SSL_PROTOCOL_VERSION_TLS1_2 = 0x0303,
33 };
34
35 // A collection of SSL-related configuration settings.
36 struct NET_EXPORT SSLConfig {
37 // Default to revocation checking.
38 // Default to SSL 3.0 ~ default_version_max() on.
39 SSLConfig();
40 ~SSLConfig();
41
42 // Returns true if |cert| is one of the certs in |allowed_bad_certs|.
43 // The expected cert status is written to |cert_status|. |*cert_status| can
44 // be NULL if user doesn't care about the cert status.
45 bool IsAllowedBadCert(X509Certificate* cert, CertStatus* cert_status) const;
46
47 // Same as above except works with DER encoded certificates instead
48 // of X509Certificate.
49 bool IsAllowedBadCert(const base::StringPiece& der_cert,
50 CertStatus* cert_status) const;
51
52 // rev_checking_enabled is true if online certificate revocation checking is
53 // enabled (i.e. OCSP and CRL fetching).
54 //
55 // Regardless of this flag, CRLSet checking is always enabled and locally
56 // cached revocation information will be considered.
57 bool rev_checking_enabled;
58
59 // rev_checking_required_local_anchors is true if revocation checking is
60 // required to succeed when certificates chain to local trust anchors (that
61 // is, non-public CAs). If revocation information cannot be obtained, such
62 // certificates will be treated as revoked ("hard-fail").
63 // Note: This is distinct from rev_checking_enabled. If true, it is
64 // equivalent to also setting rev_checking_enabled, but only when the
65 // certificate chain chains to a local (non-public) trust anchor.
66 bool rev_checking_required_local_anchors;
67
68 // The minimum and maximum protocol versions that are enabled.
69 // SSL 3.0 is 0x0300, TLS 1.0 is 0x0301, TLS 1.1 is 0x0302, and so on.
70 // (Use the SSL_PROTOCOL_VERSION_xxx enumerators defined above.)
71 // SSL 2.0 is not supported. If version_max < version_min, it means no
72 // protocol versions are enabled.
73 uint16 version_min;
74 uint16 version_max;
75
76 // Presorted list of cipher suites which should be explicitly prevented from
77 // being used in addition to those disabled by the net built-in policy.
78 //
79 // By default, all cipher suites supported by the underlying SSL
80 // implementation will be enabled except for:
81 // - Null encryption cipher suites.
82 // - Weak cipher suites: < 80 bits of security strength.
83 // - FORTEZZA cipher suites (obsolete).
84 // - IDEA cipher suites (RFC 5469 explains why).
85 // - Anonymous cipher suites.
86 // - ECDSA cipher suites on platforms that do not support ECDSA signed
87 // certificates, as servers may use the presence of such ciphersuites as a
88 // hint to send an ECDSA certificate.
89 // The ciphers listed in |disabled_cipher_suites| will be removed in addition
90 // to the above list.
91 //
92 // Though cipher suites are sent in TLS as "uint8 CipherSuite[2]", in
93 // big-endian form, they should be declared in host byte order, with the
94 // first uint8 occupying the most significant byte.
95 // Ex: To disable TLS_RSA_WITH_RC4_128_MD5, specify 0x0004, while to
96 // disable TLS_ECDH_ECDSA_WITH_RC4_128_SHA, specify 0xC002.
97 std::vector<uint16> disabled_cipher_suites;
98
99 bool channel_id_enabled; // True if TLS channel ID extension is enabled.
100 bool false_start_enabled; // True if we'll use TLS False Start.
101 // True if the Certificate Transparency signed_certificate_timestamp
102 // TLS extension is enabled.
103 bool signed_cert_timestamps_enabled;
104
105 // require_forward_secrecy, if true, causes only (EC)DHE cipher suites to be
106 // enabled. NOTE: this only applies to server sockets currently, although
107 // that could be extended if needed.
108 bool require_forward_secrecy;
109
110 // If |unrestricted_ssl3_fallback_enabled| is true, SSL 3.0 fallback will be
111 // enabled for all sites.
112 // If |unrestricted_ssl3_fallback_enabled| is false, SSL 3.0 fallback will be
113 // disabled for a site pinned to the Google pin list (indicating that it is a
114 // Google site).
115 bool unrestricted_ssl3_fallback_enabled;
116
117 // TODO(wtc): move the following members to a new SSLParams structure. They
118 // are not SSL configuration settings.
119
120 struct NET_EXPORT CertAndStatus {
121 CertAndStatus();
122 ~CertAndStatus();
123
124 std::string der_cert;
125 CertStatus cert_status;
126 };
127
128 // Add any known-bad SSL certificate (with its cert status) to
129 // |allowed_bad_certs| that should not trigger an ERR_CERT_* error when
130 // calling SSLClientSocket::Connect. This would normally be done in
131 // response to the user explicitly accepting the bad certificate.
132 std::vector<CertAndStatus> allowed_bad_certs;
133
134 // True if we should send client_cert to the server.
135 bool send_client_cert;
136
137 bool verify_ev_cert; // True if we should verify the certificate for EV.
138
139 bool version_fallback; // True if we are falling back to an older protocol
140 // version (one still needs to decrement
141 // version_max).
142
143 // If cert_io_enabled is false, then certificate verification will not
144 // result in additional HTTP requests. (For example: to fetch missing
145 // intermediates or to perform OCSP/CRL fetches.) It also implies that online
146 // revocation checking is disabled.
147 // NOTE: Only used by NSS.
148 bool cert_io_enabled;
149
150 // The list of application level protocols supported. If set, this will
151 // enable Next Protocol Negotiation (if supported). The order of the
152 // protocols doesn't matter expect for one case: if the server supports Next
153 // Protocol Negotiation, but there is no overlap between the server's and
154 // client's protocol sets, then the first protocol in this list will be
155 // requested by the client.
156 std::vector<std::string> next_protos;
157
158 scoped_refptr<X509Certificate> client_cert;
159 };
160
161 // The interface for retrieving the SSL configuration. This interface 21 // The interface for retrieving the SSL configuration. This interface
162 // does not cover setting the SSL configuration, as on some systems, the 22 // does not cover setting the SSL configuration, as on some systems, the
163 // SSLConfigService objects may not have direct access to the configuration, or 23 // SSLConfigService objects may not have direct access to the configuration, or
164 // live longer than the configuration preferences. 24 // live longer than the configuration preferences.
165 class NET_EXPORT SSLConfigService 25 class NET_EXPORT SSLConfigService
166 : public base::RefCountedThreadSafe<SSLConfigService> { 26 : public base::RefCountedThreadSafe<SSLConfigService> {
167 public: 27 public:
168 // Observer is notified when SSL config settings have changed. 28 // Observer is notified when SSL config settings have changed.
169 class NET_EXPORT Observer { 29 class NET_EXPORT Observer {
170 public: 30 public:
(...skipping 15 matching lines...) Expand all
186 46
187 SSLConfigService(); 47 SSLConfigService();
188 48
189 // May not be thread-safe, should only be called on the IO thread. 49 // May not be thread-safe, should only be called on the IO thread.
190 virtual void GetSSLConfig(SSLConfig* config) = 0; 50 virtual void GetSSLConfig(SSLConfig* config) = 0;
191 51
192 // Sets and gets the current, global CRL set. 52 // Sets and gets the current, global CRL set.
193 static void SetCRLSet(scoped_refptr<CRLSet> crl_set); 53 static void SetCRLSet(scoped_refptr<CRLSet> crl_set);
194 static scoped_refptr<CRLSet> GetCRLSet(); 54 static scoped_refptr<CRLSet> GetCRLSet();
195 55
196 // Gets the default minimum protocol version.
197 static uint16 default_version_min();
198
199 // Gets the default maximum protocol version.
200 static uint16 default_version_max();
201
202 // Is SNI available in this configuration? 56 // Is SNI available in this configuration?
203 static bool IsSNIAvailable(SSLConfigService* service); 57 static bool IsSNIAvailable(SSLConfigService* service);
204 58
205 // Add an observer of this service. 59 // Add an observer of this service.
206 void AddObserver(Observer* observer); 60 void AddObserver(Observer* observer);
207 61
208 // Remove an observer of this service. 62 // Remove an observer of this service.
209 void RemoveObserver(Observer* observer); 63 void RemoveObserver(Observer* observer);
210 64
211 // Calls the OnSSLConfigChanged method of registered observers. Should only be 65 // Calls the OnSSLConfigChanged method of registered observers. Should only be
212 // called on the IO thread. 66 // called on the IO thread.
213 void NotifySSLConfigChange(); 67 void NotifySSLConfigChange();
214 68
215 protected: 69 protected:
216 friend class base::RefCountedThreadSafe<SSLConfigService>; 70 friend class base::RefCountedThreadSafe<SSLConfigService>;
217 71
218 virtual ~SSLConfigService(); 72 virtual ~SSLConfigService();
219 73
220 // Process before/after config update. 74 // Process before/after config update.
221 void ProcessConfigUpdate(const SSLConfig& orig_config, 75 void ProcessConfigUpdate(const SSLConfig& orig_config,
222 const SSLConfig& new_config); 76 const SSLConfig& new_config);
223 77
224 private: 78 private:
225 ObserverList<Observer> observer_list_; 79 ObserverList<Observer> observer_list_;
226 }; 80 };
227 81
228 } // namespace net 82 } // namespace net
229 83
230 #endif // NET_SSL_SSL_CONFIG_SERVICE_H_ 84 #endif // NET_SSL_SSL_CONFIG_SERVICE_H_
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