mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-12-27 00:19:36 -05:00
101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
package vtpm
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import (
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"errors"
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"io"
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"testing"
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"github.com/edgelesssys/constellation/internal/attestation/simulator"
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"github.com/google/go-tpm-tools/client"
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"github.com/google/go-tpm/tpm2"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// simTPMNOPCloser is a wrapper for the generic TPM simulator with a NOP Close() method.
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type simTPMNOPCloser struct {
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io.ReadWriteCloser
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}
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func (s simTPMNOPCloser) Close() error {
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return nil
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}
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func TestMarkNodeAsInitialized(t *testing.T) {
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assert := assert.New(t)
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require := require.New(t)
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tpm, err := simulator.OpenSimulatedTPM()
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require.NoError(err)
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defer tpm.Close()
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pcrs, err := client.ReadAllPCRs(tpm)
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require.NoError(err)
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assert.NoError(MarkNodeAsInitialized(func() (io.ReadWriteCloser, error) {
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return &simTPMNOPCloser{tpm}, nil
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}, []byte{0x0, 0x1, 0x2, 0x3}, []byte{0x4, 0x5, 0x6, 0x7}))
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pcrsInitialized, err := client.ReadAllPCRs(tpm)
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require.NoError(err)
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for i := range pcrs {
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assert.NotEqual(pcrs[i].Pcrs[uint32(PCRIndexOwnerID)], pcrsInitialized[i].Pcrs[uint32(PCRIndexOwnerID)])
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assert.NotEqual(pcrs[i].Pcrs[uint32(PCRIndexClusterID)], pcrsInitialized[i].Pcrs[uint32(PCRIndexClusterID)])
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}
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}
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func TestFailOpener(t *testing.T) {
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assert := assert.New(t)
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assert.Error(MarkNodeAsInitialized(func() (io.ReadWriteCloser, error) { return nil, errors.New("failed") }, []byte{0x0, 0x1, 0x2, 0x3}, []byte{0x0, 0x1, 0x2, 0x3}))
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}
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func TestIsNodeInitialized(t *testing.T) {
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testCases := map[string]struct {
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pcrValueOwnerID []byte
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pcrValueClusterID []byte
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wantInitialized bool
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wantErr bool
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}{
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"uninitialized PCRs results in uninitialized node": {},
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"initializing PCRs result in initialized node": {
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pcrValueOwnerID: []byte{0x0, 0x1, 0x2, 0x3},
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pcrValueClusterID: []byte{0x4, 0x5, 0x6, 0x7},
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wantInitialized: true,
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},
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"initializing ownerID alone fails": {
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pcrValueOwnerID: []byte{0x0, 0x1, 0x2, 0x3},
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wantErr: true,
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},
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"initializing clusterID alone fails": {
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pcrValueClusterID: []byte{0x4, 0x5, 0x6, 0x7},
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wantErr: true,
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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assert := require.New(t)
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require := require.New(t)
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tpm, err := simulator.OpenSimulatedTPM()
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require.NoError(err)
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defer tpm.Close()
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if tc.pcrValueOwnerID != nil {
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require.NoError(tpm2.PCREvent(tpm, PCRIndexOwnerID, tc.pcrValueOwnerID))
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}
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if tc.pcrValueClusterID != nil {
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require.NoError(tpm2.PCREvent(tpm, PCRIndexClusterID, tc.pcrValueClusterID))
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}
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initialized, err := IsNodeInitialized(func() (io.ReadWriteCloser, error) {
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return &simTPMNOPCloser{tpm}, nil
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})
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if tc.wantErr {
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assert.Error(err)
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return
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}
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require.NoError(err)
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require.Equal(tc.wantInitialized, initialized)
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})
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}
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}
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