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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #include "chromeos/tpm/tpm_token_info_getter.h" | 5 #include "chromeos/tpm/tpm_token_info_getter.h" |
6 | 6 |
| 7 #include <stdint.h> |
| 8 |
7 #include "base/bind.h" | 9 #include "base/bind.h" |
8 #include "base/location.h" | 10 #include "base/location.h" |
9 #include "chromeos/dbus/cryptohome_client.h" | 11 #include "chromeos/dbus/cryptohome_client.h" |
10 | 12 |
11 namespace { | 13 namespace { |
12 | 14 |
13 const int64 kInitialRequestDelayMs = 100; | 15 const int64_t kInitialRequestDelayMs = 100; |
14 const int64 kMaxRequestDelayMs = 300000; // 5 minutes | 16 const int64_t kMaxRequestDelayMs = 300000; // 5 minutes |
15 | 17 |
16 // Calculates the delay before running next attempt to initiatialize the TPM | 18 // Calculates the delay before running next attempt to initiatialize the TPM |
17 // token, if |last_delay| was the last or initial delay. | 19 // token, if |last_delay| was the last or initial delay. |
18 base::TimeDelta GetNextRequestDelayMs(base::TimeDelta last_delay) { | 20 base::TimeDelta GetNextRequestDelayMs(base::TimeDelta last_delay) { |
19 // This implements an exponential backoff, as we don't know in which order of | 21 // This implements an exponential backoff, as we don't know in which order of |
20 // magnitude the TPM token changes it's state. | 22 // magnitude the TPM token changes it's state. |
21 base::TimeDelta next_delay = last_delay * 2; | 23 base::TimeDelta next_delay = last_delay * 2; |
22 | 24 |
23 // Cap the delay to prevent an overflow. This threshold is arbitrarily chosen. | 25 // Cap the delay to prevent an overflow. This threshold is arbitrarily chosen. |
24 const base::TimeDelta max_delay = | 26 const base::TimeDelta max_delay = |
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153 TPMTokenInfo token_info; | 155 TPMTokenInfo token_info; |
154 token_info.tpm_is_enabled = true; | 156 token_info.tpm_is_enabled = true; |
155 token_info.token_name = token_name; | 157 token_info.token_name = token_name; |
156 token_info.user_pin = user_pin; | 158 token_info.user_pin = user_pin; |
157 token_info.token_slot_id = token_slot_id; | 159 token_info.token_slot_id = token_slot_id; |
158 | 160 |
159 callback_.Run(token_info); | 161 callback_.Run(token_info); |
160 } | 162 } |
161 | 163 |
162 } // namespace chromeos | 164 } // namespace chromeos |
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