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WIP: print supported tpm commands

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This commit is contained in:
Andrew Lytvynov 2025-06-17 14:39:15 -07:00
parent 939355f667
commit 3c7fce72b2
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1 changed files with 39 additions and 0 deletions
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39
feature/tpm/tpm.go
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@ -5,6 +5,7 @@
package tpm
import (
"log"
"slices"
"sync"
@ -63,6 +64,44 @@ func infoFromCapabilities(tpm transport.TPM) *tailcfg.TPMInfo {
}
cap.apply(info, props.TPMProperty[0].Value)
}
{
resp, err := tpm2.GetCapability{
Capability: tpm2.TPMCapCommands,
Property: 0,
PropertyCount: (1024 - 4 - 4) / 4,
}.Execute(tpm)
if err != nil {
log.Printf("GetCapability: %v", err)
return info
}
cmd, err := resp.CapabilityData.Data.Command()
if err != nil {
log.Printf("Data.Command: %v", err)
return info
}
for _, cc := range cmd.CommandAttributes {
log.Printf("supported command 0x%x", cc.CommandIndex)
}
}
{
resp, err := tpm2.GetCapability{
Capability: tpm2.TPMCapAlgs,
Property: 0,
PropertyCount: (1024 - 4 - 4) / 4,
}.Execute(tpm)
if err != nil {
log.Printf("GetCapability: %v", err)
return info
}
alg, err := resp.CapabilityData.Data.Algorithms()
if err != nil {
log.Printf("Data.Command: %v", err)
return info
}
for _, a := range alg.AlgProperties {
log.Printf("supported algorithm 0x%x", a.Alg)
}
}
return info
}