Add '/dev/tcm0' to default conf #841
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A standard similar to TPM has been released in China, called TCM(Trusted Cryptography Module), and its device path is /dev/tcm0. The TCM standard is compatible with TPM, and TSS can be used to manage its device path.
| * the traversal. | ||
| */ | ||
| static gint | ||
| tss2_tctildr_init(const gmain_data_t *data, TSS2_TCTI_CONTEXT **tcti_ctx) |
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put this logic in the tpm2-tss backend for the device tcti rather than tabrmd. This way everything using the tcti libraries gets this support. You'll have a dependency on the updated tpm2-tss library and tpm2-abrmd to support this.
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Thanks for your reply. TCM support has been added to tpm2-tss, see: tcti: Add '/dev/tcm0' to default conf . When the configuration of tctildr is empty, the default configuration will be automatically used to complete the initialization on the device with only tcm.
However, tpm2-abrmd specifies the configuration when initializing tctildr. If the configuration does not contain tcm, the initialization will fail on the device with only tcm, so this part of the code is added.
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So then why don't we just use NULL for the default and let the tcti-ldr search logic prevail.
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Yes, this seems feasible. I need to verify how to modify it.
A standard similar to TPM has been released in China, called TCM(Trusted Cryptography Module), and its device path is /dev/tcm0.
The TCM standard is compatible with TPM, and TSS can be used to manage its device path.