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1 | /** @file\r | |
2 | Implement TPM2 DictionaryAttack related command.\r | |
3 | \r | |
4 | Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <IndustryStandard/UefiTcgPlatform.h>\r | |
16 | #include <Library/Tpm2CommandLib.h>\r | |
17 | #include <Library/Tpm2DeviceLib.h>\r | |
18 | #include <Library/BaseMemoryLib.h>\r | |
19 | #include <Library/BaseLib.h>\r | |
20 | #include <Library/DebugLib.h>\r | |
21 | \r | |
22 | #pragma pack(1)\r | |
23 | \r | |
24 | typedef struct {\r | |
25 | TPM2_COMMAND_HEADER Header;\r | |
26 | TPMI_RH_LOCKOUT LockHandle;\r | |
27 | UINT32 AuthSessionSize;\r | |
28 | TPMS_AUTH_COMMAND AuthSession;\r | |
29 | } TPM2_DICTIONARY_ATTACK_LOCK_RESET_COMMAND;\r | |
30 | \r | |
31 | typedef struct {\r | |
32 | TPM2_RESPONSE_HEADER Header;\r | |
33 | UINT32 AuthSessionSize;\r | |
34 | TPMS_AUTH_RESPONSE AuthSession;\r | |
35 | } TPM2_DICTIONARY_ATTACK_LOCK_RESET_RESPONSE;\r | |
36 | \r | |
37 | typedef struct {\r | |
38 | TPM2_COMMAND_HEADER Header;\r | |
39 | TPMI_RH_LOCKOUT LockHandle;\r | |
40 | UINT32 AuthSessionSize;\r | |
41 | TPMS_AUTH_COMMAND AuthSession;\r | |
42 | UINT32 NewMaxTries;\r | |
43 | UINT32 NewRecoveryTime;\r | |
44 | UINT32 LockoutRecovery;\r | |
45 | } TPM2_DICTIONARY_ATTACK_PARAMETERS_COMMAND;\r | |
46 | \r | |
47 | typedef struct {\r | |
48 | TPM2_RESPONSE_HEADER Header;\r | |
49 | UINT32 AuthSessionSize;\r | |
50 | TPMS_AUTH_RESPONSE AuthSession;\r | |
51 | } TPM2_DICTIONARY_ATTACK_PARAMETERS_RESPONSE;\r | |
52 | \r | |
53 | #pragma pack()\r | |
54 | \r | |
55 | /**\r | |
56 | This command cancels the effect of a TPM lockout due to a number of successive authorization failures.\r | |
57 | If this command is properly authorized, the lockout counter is set to zero.\r | |
58 | \r | |
59 | @param[in] LockHandle TPM_RH_LOCKOUT\r | |
60 | @param[in] AuthSession Auth Session context\r | |
61 | \r | |
62 | @retval EFI_SUCCESS Operation completed successfully.\r | |
63 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
64 | **/\r | |
65 | EFI_STATUS\r | |
66 | EFIAPI\r | |
67 | Tpm2DictionaryAttackLockReset (\r | |
68 | IN TPMI_RH_LOCKOUT LockHandle,\r | |
69 | IN TPMS_AUTH_COMMAND *AuthSession\r | |
70 | )\r | |
71 | {\r | |
72 | EFI_STATUS Status;\r | |
73 | TPM2_DICTIONARY_ATTACK_LOCK_RESET_COMMAND SendBuffer;\r | |
74 | TPM2_DICTIONARY_ATTACK_LOCK_RESET_RESPONSE RecvBuffer;\r | |
75 | UINT32 SendBufferSize;\r | |
76 | UINT32 RecvBufferSize;\r | |
77 | UINT8 *Buffer;\r | |
78 | UINT32 SessionInfoSize;\r | |
79 | \r | |
80 | //\r | |
81 | // Construct command\r | |
82 | //\r | |
83 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
84 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_DictionaryAttackLockReset);\r | |
85 | \r | |
86 | SendBuffer.LockHandle = SwapBytes32 (LockHandle);\r | |
87 | \r | |
88 | //\r | |
89 | // Add in Auth session\r | |
90 | //\r | |
91 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
92 | \r | |
93 | // sessionInfoSize\r | |
94 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
95 | Buffer += SessionInfoSize;\r | |
96 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
97 | \r | |
98 | SendBufferSize = (UINT32)((UINTN)Buffer - (UINTN)&SendBuffer);\r | |
99 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
100 | \r | |
101 | //\r | |
102 | // send Tpm command\r | |
103 | //\r | |
104 | RecvBufferSize = sizeof (RecvBuffer);\r | |
105 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
106 | if (EFI_ERROR (Status)) {\r | |
107 | goto Done;\r | |
108 | }\r | |
109 | \r | |
110 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
111 | DEBUG ((EFI_D_ERROR, "Tpm2DictionaryAttackLockReset - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
112 | Status = EFI_DEVICE_ERROR;\r | |
113 | goto Done;\r | |
114 | }\r | |
115 | if (SwapBytes32(RecvBuffer.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
116 | DEBUG ((EFI_D_ERROR, "Tpm2DictionaryAttackLockReset - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
117 | Status = EFI_DEVICE_ERROR;\r | |
118 | goto Done;\r | |
119 | }\r | |
120 | \r | |
121 | Done:\r | |
122 | //\r | |
123 | // Clear AuthSession Content\r | |
124 | //\r | |
125 | ZeroMem (&SendBuffer, sizeof(SendBuffer));\r | |
126 | ZeroMem (&RecvBuffer, sizeof(RecvBuffer));\r | |
127 | return Status;\r | |
128 | }\r | |
129 | \r | |
130 | /**\r | |
131 | This command cancels the effect of a TPM lockout due to a number of successive authorization failures.\r | |
132 | If this command is properly authorized, the lockout counter is set to zero.\r | |
133 | \r | |
134 | @param[in] LockHandle TPM_RH_LOCKOUT\r | |
135 | @param[in] AuthSession Auth Session context\r | |
136 | @param[in] NewMaxTries Count of authorization failures before the lockout is imposed\r | |
137 | @param[in] NewRecoveryTime Time in seconds before the authorization failure count is automatically decremented\r | |
138 | @param[in] LockoutRecovery Time in seconds after a lockoutAuth failure before use of lockoutAuth is allowed\r | |
139 | \r | |
140 | @retval EFI_SUCCESS Operation completed successfully.\r | |
141 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
142 | **/\r | |
143 | EFI_STATUS\r | |
144 | EFIAPI\r | |
145 | Tpm2DictionaryAttackParameters (\r | |
146 | IN TPMI_RH_LOCKOUT LockHandle,\r | |
147 | IN TPMS_AUTH_COMMAND *AuthSession,\r | |
148 | IN UINT32 NewMaxTries,\r | |
149 | IN UINT32 NewRecoveryTime,\r | |
150 | IN UINT32 LockoutRecovery\r | |
151 | )\r | |
152 | {\r | |
153 | EFI_STATUS Status;\r | |
154 | TPM2_DICTIONARY_ATTACK_PARAMETERS_COMMAND SendBuffer;\r | |
155 | TPM2_DICTIONARY_ATTACK_PARAMETERS_RESPONSE RecvBuffer;\r | |
156 | UINT32 SendBufferSize;\r | |
157 | UINT32 RecvBufferSize;\r | |
158 | UINT8 *Buffer;\r | |
159 | UINT32 SessionInfoSize;\r | |
160 | \r | |
161 | //\r | |
162 | // Construct command\r | |
163 | //\r | |
164 | SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);\r | |
165 | SendBuffer.Header.commandCode = SwapBytes32(TPM_CC_DictionaryAttackParameters);\r | |
166 | \r | |
167 | SendBuffer.LockHandle = SwapBytes32 (LockHandle);\r | |
168 | \r | |
169 | //\r | |
170 | // Add in Auth session\r | |
171 | //\r | |
172 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
173 | \r | |
174 | // sessionInfoSize\r | |
175 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r | |
176 | Buffer += SessionInfoSize;\r | |
177 | SendBuffer.AuthSessionSize = SwapBytes32(SessionInfoSize);\r | |
178 | \r | |
179 | //\r | |
180 | // Real data\r | |
181 | //\r | |
182 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32(NewMaxTries));\r | |
183 | Buffer += sizeof(UINT32);\r | |
184 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32(NewRecoveryTime));\r | |
185 | Buffer += sizeof(UINT32);\r | |
186 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32(LockoutRecovery));\r | |
187 | Buffer += sizeof(UINT32);\r | |
188 | \r | |
189 | SendBufferSize = (UINT32)((UINTN)Buffer - (UINTN)&SendBuffer);\r | |
190 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r | |
191 | \r | |
192 | //\r | |
193 | // send Tpm command\r | |
194 | //\r | |
195 | RecvBufferSize = sizeof (RecvBuffer);\r | |
196 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r | |
197 | if (EFI_ERROR (Status)) {\r | |
198 | goto Done;\r | |
199 | }\r | |
200 | \r | |
201 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
202 | DEBUG ((EFI_D_ERROR, "Tpm2DictionaryAttackParameters - RecvBufferSize Error - %x\n", RecvBufferSize));\r | |
203 | Status = EFI_DEVICE_ERROR;\r | |
204 | goto Done;\r | |
205 | }\r | |
206 | if (SwapBytes32(RecvBuffer.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
207 | DEBUG ((EFI_D_ERROR, "Tpm2DictionaryAttackParameters - responseCode - %x\n", SwapBytes32(RecvBuffer.Header.responseCode)));\r | |
208 | Status = EFI_DEVICE_ERROR;\r | |
209 | goto Done;\r | |
210 | }\r | |
211 | \r | |
212 | Done:\r | |
213 | //\r | |
214 | // Clear AuthSession Content\r | |
215 | //\r | |
216 | ZeroMem (&SendBufferSize, sizeof(SendBufferSize));\r | |
217 | ZeroMem (&RecvBuffer, sizeof(RecvBuffer));\r | |
218 | return Status;\r | |
219 | }\r |