1 | // =================================================================== |
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2 | // |
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3 | // Copyright (c) 2005, Intel Corp. |
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4 | // All rights reserved. |
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5 | // |
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6 | // Redistribution and use in source and binary forms, with or without |
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7 | // modification, are permitted provided that the following conditions |
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8 | // are met: |
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9 | // |
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10 | // * Redistributions of source code must retain the above copyright |
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11 | // notice, this list of conditions and the following disclaimer. |
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12 | // * Redistributions in binary form must reproduce the above |
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13 | // copyright notice, this list of conditions and the following |
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14 | // disclaimer in the documentation and/or other materials provided |
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15 | // with the distribution. |
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16 | // * Neither the name of Intel Corporation nor the names of its |
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17 | // contributors may be used to endorse or promote products derived |
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18 | // from this software without specific prior written permission. |
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19 | // |
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20 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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21 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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22 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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23 | // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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24 | // COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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25 | // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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26 | // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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27 | // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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28 | // HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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29 | // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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30 | // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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31 | // OF THE POSSIBILITY OF SUCH DAMAGE. |
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32 | // =================================================================== |
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33 | // |
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34 | // tpmpassthrough.c |
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35 | // |
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36 | // Functions regarding passing DMI requests to HWTPM |
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37 | // |
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38 | // ================================================================== |
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39 | |
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40 | #include "tcg.h" |
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41 | #include "vtpm_manager.h" |
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42 | #include "vtpmpriv.h" |
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43 | #include "vtsp.h" |
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44 | #include "log.h" |
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45 | |
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46 | TPM_RESULT VTPM_Handle_TPM_Command( VTPM_DMI_RESOURCE *dmi, |
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47 | buffer_t *inbuf, |
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48 | buffer_t *outbuf) { |
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49 | |
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50 | TPM_RESULT status = TPM_SUCCESS; |
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51 | TPM_COMMAND_CODE *ord; |
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52 | |
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53 | ord = (TPM_COMMAND_CODE *) (inbuf->bytes + sizeof(TPM_TAG) + sizeof(UINT32)); |
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54 | |
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55 | switch (*ord) { |
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56 | |
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57 | // Forbidden for DMI use |
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58 | case TPM_ORD_TakeOwnership: |
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59 | case TPM_ORD_ChangeAuthOwner: |
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60 | case TPM_ORD_DirWriteAuth: |
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61 | case TPM_ORD_DirRead: |
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62 | case TPM_ORD_AuthorizeMigrationKey: |
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63 | case TPM_ORD_CreateMaintenanceArchive: |
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64 | case TPM_ORD_LoadMaintenanceArchive: |
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65 | case TPM_ORD_KillMaintenanceFeature: |
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66 | case TPM_ORD_LoadManuMaintPub: |
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67 | case TPM_ORD_ReadManuMaintPub: |
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68 | case TPM_ORD_SelfTestFull: |
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69 | case TPM_ORD_SelfTestStartup: |
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70 | case TPM_ORD_CertifySelfTest: |
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71 | case TPM_ORD_ContinueSelfTest: |
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72 | case TPM_ORD_GetTestResult: |
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73 | case TPM_ORD_Reset: |
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74 | case TPM_ORD_OwnerClear: |
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75 | case TPM_ORD_DisableOwnerClear: |
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76 | case TPM_ORD_ForceClear: |
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77 | case TPM_ORD_DisableForceClear: |
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78 | case TPM_ORD_GetCapabilityOwner: |
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79 | case TPM_ORD_OwnerSetDisable: |
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80 | case TPM_ORD_PhysicalEnable: |
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81 | case TPM_ORD_PhysicalDisable: |
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82 | case TPM_ORD_SetOwnerInstall: |
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83 | case TPM_ORD_PhysicalSetDeactivated: |
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84 | case TPM_ORD_SetTempDeactivated: |
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85 | case TPM_ORD_CreateEndorsementKeyPair: |
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86 | case TPM_ORD_GetAuditEvent: |
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87 | case TPM_ORD_GetAuditEventSigned: |
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88 | case TPM_ORD_GetOrdinalAuditStatus: |
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89 | case TPM_ORD_SetOrdinalAuditStatus: |
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90 | case TPM_ORD_SetRedirection: |
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91 | case TPM_ORD_FieldUpgrade: |
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92 | case TSC_ORD_PhysicalPresence: |
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93 | status = TPM_DISABLED_CMD; |
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94 | goto abort_egress; |
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95 | break; |
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96 | |
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97 | } // End ORD Switch |
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98 | |
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99 | // Call TCS with command |
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100 | |
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101 | TPMTRY(TPM_IOERROR, VTSP_RawTransmit( dmi->TCSContext,inbuf, outbuf) ); |
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102 | |
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103 | goto egress; |
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104 | |
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105 | abort_egress: |
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106 | vtpmloginfo(VTPM_LOG_VTPM, "TPM Command Failed in tpmpassthrough.\n"); |
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107 | egress: |
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108 | |
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109 | return status; |
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110 | } |
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