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add TPM2_SelfTest and TPM2_GetTestResult #319

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add TPM2_SelfTest and TPM2_GetTestResult #319

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2 changes: 2 additions & 0 deletions tpm2/constants.go
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Original file line number Diff line number Diff line change
Expand Up @@ -456,6 +456,7 @@ const (
CmdPCREvent tpmutil.Command = 0x0000013C
CmdPCRReset tpmutil.Command = 0x0000013D
CmdSequenceComplete tpmutil.Command = 0x0000013E
CmdSelfTest tpmutil.Command = 0x00000143
CmdStartup tpmutil.Command = 0x00000144
CmdShutdown tpmutil.Command = 0x00000145
CmdActivateCredential tpmutil.Command = 0x00000147
Expand Down Expand Up @@ -489,6 +490,7 @@ const (
CmdStartAuthSession tpmutil.Command = 0x00000176
CmdGetCapability tpmutil.Command = 0x0000017A
CmdGetRandom tpmutil.Command = 0x0000017B
CmdGetTestResult tpmutil.Command = 0x0000017C
CmdHash tpmutil.Command = 0x0000017D
CmdPCRRead tpmutil.Command = 0x0000017E
CmdPolicyPCR tpmutil.Command = 0x0000017F
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26 changes: 26 additions & 0 deletions tpm2/tpm2.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,32 @@ import (
"github.com/google/go-tpm/tpmutil"
)

func SelfTest(rw io.ReadWriter, fullTest bool) error {
var yesno uint8
if fullTest {
yesno = 1
}
_, err := runCommand(rw, TagNoSessions, CmdSelfTest, yesno)
if err != nil {
return err
}

return nil
}

func GetTestResult(rw io.ReadWriter) ([]byte, error) {
resp, err := runCommand(rw, TagNoSessions, CmdGetTestResult)
if err != nil {
return nil, err
}

var testResult tpmutil.U16Bytes
if _, err := tpmutil.Unpack(resp, &testResult); err != nil {
return nil, err
}
return testResult, nil
}

// GetRandom gets random bytes from the TPM.
func GetRandom(rw io.ReadWriter, size uint16) ([]byte, error) {
resp, err := runCommand(rw, TagNoSessions, CmdGetRandom, size)
Expand Down