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1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved. | 1 /* Copyright (c) 2010-2011 The Chromium OS 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 | 5 |
6 /* A lightweight TPM command library. | 6 /* A lightweight TPM command library. |
7 * | 7 * |
8 * The general idea is that TPM commands are array of bytes whose | 8 * The general idea is that TPM commands are array of bytes whose |
9 * fields are mostly compile-time constant. The goal is to build much | 9 * fields are mostly compile-time constant. The goal is to build much |
10 * of the commands at compile time (or build time) and change some of | 10 * of the commands at compile time (or build time) and change some of |
11 * the fields at run time as needed. The code in | 11 * the fields at run time as needed. The code in |
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318 Memcpy(&cmd, &tpm_getpermissions_cmd, sizeof(cmd)); | 318 Memcpy(&cmd, &tpm_getpermissions_cmd, sizeof(cmd)); |
319 ToTpmUint32(cmd.buffer + tpm_getpermissions_cmd.index, index); | 319 ToTpmUint32(cmd.buffer + tpm_getpermissions_cmd.index, index); |
320 result = TlclSendReceive(cmd.buffer, response, sizeof(response)); | 320 result = TlclSendReceive(cmd.buffer, response, sizeof(response)); |
321 if (result != TPM_SUCCESS) | 321 if (result != TPM_SUCCESS) |
322 return result; | 322 return result; |
323 | 323 |
324 nvdata = response + kTpmResponseHeaderLength + sizeof(size); | 324 nvdata = response + kTpmResponseHeaderLength + sizeof(size); |
325 FromTpmUint32(nvdata + kNvDataPublicPermissionsOffset, permissions); | 325 FromTpmUint32(nvdata + kNvDataPublicPermissionsOffset, permissions); |
326 return result; | 326 return result; |
327 } | 327 } |
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