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c1d93242 JY |
1 | /** @file\r |
2 | Implement TPM2 DictionaryAttack related command.\r | |
3 | \r | |
7ae130da | 4 | Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved. <BR>\r |
289b714b | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
c1d93242 JY |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include <IndustryStandard/UefiTcgPlatform.h>\r | |
10 | #include <Library/Tpm2CommandLib.h>\r | |
11 | #include <Library/Tpm2DeviceLib.h>\r | |
12 | #include <Library/BaseMemoryLib.h>\r | |
13 | #include <Library/BaseLib.h>\r | |
14 | #include <Library/DebugLib.h>\r | |
15 | \r | |
16 | #pragma pack(1)\r | |
17 | \r | |
18 | typedef struct {\r | |
c411b485 MK |
19 | TPM2_COMMAND_HEADER Header;\r |
20 | TPMI_RH_LOCKOUT LockHandle;\r | |
21 | UINT32 AuthSessionSize;\r | |
22 | TPMS_AUTH_COMMAND AuthSession;\r | |
c1d93242 JY |
23 | } TPM2_DICTIONARY_ATTACK_LOCK_RESET_COMMAND;\r |
24 | \r | |
25 | typedef struct {\r | |
c411b485 MK |
26 | TPM2_RESPONSE_HEADER Header;\r |
27 | UINT32 AuthSessionSize;\r | |
28 | TPMS_AUTH_RESPONSE AuthSession;\r | |
c1d93242 JY |
29 | } TPM2_DICTIONARY_ATTACK_LOCK_RESET_RESPONSE;\r |
30 | \r | |
31 | typedef struct {\r | |
c411b485 MK |
32 | TPM2_COMMAND_HEADER Header;\r |
33 | TPMI_RH_LOCKOUT LockHandle;\r | |
34 | UINT32 AuthSessionSize;\r | |
35 | TPMS_AUTH_COMMAND AuthSession;\r | |
36 | UINT32 NewMaxTries;\r | |
37 | UINT32 NewRecoveryTime;\r | |
38 | UINT32 LockoutRecovery;\r | |
c1d93242 JY |
39 | } TPM2_DICTIONARY_ATTACK_PARAMETERS_COMMAND;\r |
40 | \r | |
41 | typedef struct {\r | |
c411b485 MK |
42 | TPM2_RESPONSE_HEADER Header;\r |
43 | UINT32 AuthSessionSize;\r | |
44 | TPMS_AUTH_RESPONSE AuthSession;\r | |
c1d93242 JY |
45 | } TPM2_DICTIONARY_ATTACK_PARAMETERS_RESPONSE;\r |
46 | \r | |
47 | #pragma pack()\r | |
48 | \r | |
49 | /**\r | |
50 | This command cancels the effect of a TPM lockout due to a number of successive authorization failures.\r | |
51 | If this command is properly authorized, the lockout counter is set to zero.\r | |
52 | \r | |
53 | @param[in] LockHandle TPM_RH_LOCKOUT\r | |
54 | @param[in] AuthSession Auth Session context\r | |
55 | \r | |
56 | @retval EFI_SUCCESS Operation completed successfully.\r | |
57 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
58 | **/\r | |
59 | EFI_STATUS\r | |
60 | EFIAPI\r | |
61 | Tpm2DictionaryAttackLockReset (\r | |
c411b485 MK |
62 | IN TPMI_RH_LOCKOUT LockHandle,\r |
63 | IN TPMS_AUTH_COMMAND *AuthSession\r | |
c1d93242 JY |
64 | )\r |
65 | {\r | |
c411b485 MK |
66 | EFI_STATUS Status;\r |
67 | TPM2_DICTIONARY_ATTACK_LOCK_RESET_COMMAND SendBuffer;\r | |
68 | TPM2_DICTIONARY_ATTACK_LOCK_RESET_RESPONSE RecvBuffer;\r | |
69 | UINT32 SendBufferSize;\r | |
70 | UINT32 RecvBufferSize;\r | |
71 | UINT8 *Buffer;\r | |
72 | UINT32 SessionInfoSize;\r | |
c1d93242 JY |
73 | \r |
74 | //\r | |
75 | // Construct command\r | |
76 | //\r | |
c411b485 MK |
77 | SendBuffer.Header.tag = SwapBytes16 (TPM_ST_SESSIONS);\r |
78 | SendBuffer.Header.commandCode = SwapBytes32 (TPM_CC_DictionaryAttackLockReset);\r | |
c1d93242 JY |
79 | \r |
80 | SendBuffer.LockHandle = SwapBytes32 (LockHandle);\r | |
81 | \r | |
82 | //\r | |
83 | // Add in Auth session\r | |
84 | //\r | |
85 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
86 | \r | |
87 | // sessionInfoSize\r | |
c411b485 MK |
88 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r |
89 | Buffer += SessionInfoSize;\r | |
90 | SendBuffer.AuthSessionSize = SwapBytes32 (SessionInfoSize);\r | |
c1d93242 | 91 | \r |
c411b485 | 92 | SendBufferSize = (UINT32)((UINTN)Buffer - (UINTN)&SendBuffer);\r |
c1d93242 JY |
93 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r |
94 | \r | |
95 | //\r | |
96 | // send Tpm command\r | |
97 | //\r | |
98 | RecvBufferSize = sizeof (RecvBuffer);\r | |
c411b485 | 99 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r |
c1d93242 | 100 | if (EFI_ERROR (Status)) {\r |
7ae130da | 101 | goto Done;\r |
c1d93242 JY |
102 | }\r |
103 | \r | |
104 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
e905fbb0 | 105 | DEBUG ((DEBUG_ERROR, "Tpm2DictionaryAttackLockReset - RecvBufferSize Error - %x\n", RecvBufferSize));\r |
7ae130da JY |
106 | Status = EFI_DEVICE_ERROR;\r |
107 | goto Done;\r | |
c1d93242 | 108 | }\r |
c411b485 MK |
109 | \r |
110 | if (SwapBytes32 (RecvBuffer.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
111 | DEBUG ((DEBUG_ERROR, "Tpm2DictionaryAttackLockReset - responseCode - %x\n", SwapBytes32 (RecvBuffer.Header.responseCode)));\r | |
7ae130da JY |
112 | Status = EFI_DEVICE_ERROR;\r |
113 | goto Done;\r | |
c1d93242 JY |
114 | }\r |
115 | \r | |
7ae130da JY |
116 | Done:\r |
117 | //\r | |
118 | // Clear AuthSession Content\r | |
119 | //\r | |
c411b485 MK |
120 | ZeroMem (&SendBuffer, sizeof (SendBuffer));\r |
121 | ZeroMem (&RecvBuffer, sizeof (RecvBuffer));\r | |
7ae130da | 122 | return Status;\r |
c1d93242 JY |
123 | }\r |
124 | \r | |
125 | /**\r | |
126 | This command cancels the effect of a TPM lockout due to a number of successive authorization failures.\r | |
127 | If this command is properly authorized, the lockout counter is set to zero.\r | |
128 | \r | |
129 | @param[in] LockHandle TPM_RH_LOCKOUT\r | |
130 | @param[in] AuthSession Auth Session context\r | |
131 | @param[in] NewMaxTries Count of authorization failures before the lockout is imposed\r | |
132 | @param[in] NewRecoveryTime Time in seconds before the authorization failure count is automatically decremented\r | |
133 | @param[in] LockoutRecovery Time in seconds after a lockoutAuth failure before use of lockoutAuth is allowed\r | |
134 | \r | |
135 | @retval EFI_SUCCESS Operation completed successfully.\r | |
136 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
137 | **/\r | |
138 | EFI_STATUS\r | |
139 | EFIAPI\r | |
140 | Tpm2DictionaryAttackParameters (\r | |
c411b485 MK |
141 | IN TPMI_RH_LOCKOUT LockHandle,\r |
142 | IN TPMS_AUTH_COMMAND *AuthSession,\r | |
143 | IN UINT32 NewMaxTries,\r | |
144 | IN UINT32 NewRecoveryTime,\r | |
145 | IN UINT32 LockoutRecovery\r | |
c1d93242 JY |
146 | )\r |
147 | {\r | |
c411b485 MK |
148 | EFI_STATUS Status;\r |
149 | TPM2_DICTIONARY_ATTACK_PARAMETERS_COMMAND SendBuffer;\r | |
150 | TPM2_DICTIONARY_ATTACK_PARAMETERS_RESPONSE RecvBuffer;\r | |
151 | UINT32 SendBufferSize;\r | |
152 | UINT32 RecvBufferSize;\r | |
153 | UINT8 *Buffer;\r | |
154 | UINT32 SessionInfoSize;\r | |
c1d93242 JY |
155 | \r |
156 | //\r | |
157 | // Construct command\r | |
158 | //\r | |
c411b485 MK |
159 | SendBuffer.Header.tag = SwapBytes16 (TPM_ST_SESSIONS);\r |
160 | SendBuffer.Header.commandCode = SwapBytes32 (TPM_CC_DictionaryAttackParameters);\r | |
c1d93242 JY |
161 | \r |
162 | SendBuffer.LockHandle = SwapBytes32 (LockHandle);\r | |
163 | \r | |
164 | //\r | |
165 | // Add in Auth session\r | |
166 | //\r | |
167 | Buffer = (UINT8 *)&SendBuffer.AuthSession;\r | |
168 | \r | |
169 | // sessionInfoSize\r | |
c411b485 MK |
170 | SessionInfoSize = CopyAuthSessionCommand (AuthSession, Buffer);\r |
171 | Buffer += SessionInfoSize;\r | |
172 | SendBuffer.AuthSessionSize = SwapBytes32 (SessionInfoSize);\r | |
c1d93242 JY |
173 | \r |
174 | //\r | |
175 | // Real data\r | |
176 | //\r | |
c411b485 MK |
177 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32 (NewMaxTries));\r |
178 | Buffer += sizeof (UINT32);\r | |
179 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32 (NewRecoveryTime));\r | |
180 | Buffer += sizeof (UINT32);\r | |
181 | WriteUnaligned32 ((UINT32 *)Buffer, SwapBytes32 (LockoutRecovery));\r | |
182 | Buffer += sizeof (UINT32);\r | |
c1d93242 | 183 | \r |
c411b485 | 184 | SendBufferSize = (UINT32)((UINTN)Buffer - (UINTN)&SendBuffer);\r |
c1d93242 JY |
185 | SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);\r |
186 | \r | |
187 | //\r | |
188 | // send Tpm command\r | |
189 | //\r | |
190 | RecvBufferSize = sizeof (RecvBuffer);\r | |
c411b485 | 191 | Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer, &RecvBufferSize, (UINT8 *)&RecvBuffer);\r |
c1d93242 | 192 | if (EFI_ERROR (Status)) {\r |
7ae130da | 193 | goto Done;\r |
c1d93242 JY |
194 | }\r |
195 | \r | |
196 | if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {\r | |
e905fbb0 | 197 | DEBUG ((DEBUG_ERROR, "Tpm2DictionaryAttackParameters - RecvBufferSize Error - %x\n", RecvBufferSize));\r |
7ae130da JY |
198 | Status = EFI_DEVICE_ERROR;\r |
199 | goto Done;\r | |
c1d93242 | 200 | }\r |
c411b485 MK |
201 | \r |
202 | if (SwapBytes32 (RecvBuffer.Header.responseCode) != TPM_RC_SUCCESS) {\r | |
203 | DEBUG ((DEBUG_ERROR, "Tpm2DictionaryAttackParameters - responseCode - %x\n", SwapBytes32 (RecvBuffer.Header.responseCode)));\r | |
7ae130da JY |
204 | Status = EFI_DEVICE_ERROR;\r |
205 | goto Done;\r | |
c1d93242 JY |
206 | }\r |
207 | \r | |
7ae130da JY |
208 | Done:\r |
209 | //\r | |
210 | // Clear AuthSession Content\r | |
211 | //\r | |
c411b485 MK |
212 | ZeroMem (&SendBufferSize, sizeof (SendBufferSize));\r |
213 | ZeroMem (&RecvBuffer, sizeof (RecvBuffer));\r | |
7ae130da | 214 | return Status;\r |
c1d93242 | 215 | }\r |