mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-10-01 01:36:09 -04:00
390 lines
11 KiB
Go
390 lines
11 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package cmd
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import (
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"bytes"
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"context"
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"errors"
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"net"
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"strconv"
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"testing"
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"github.com/edgelesssys/constellation/cli/internal/cloudcmd"
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"github.com/edgelesssys/constellation/disk-mapper/recoverproto"
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"github.com/edgelesssys/constellation/internal/cloud/cloudprovider"
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"github.com/edgelesssys/constellation/internal/config"
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"github.com/edgelesssys/constellation/internal/constants"
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"github.com/edgelesssys/constellation/internal/crypto/testvector"
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"github.com/edgelesssys/constellation/internal/file"
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"github.com/edgelesssys/constellation/internal/grpc/atlscredentials"
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"github.com/edgelesssys/constellation/internal/grpc/dialer"
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"github.com/edgelesssys/constellation/internal/grpc/testdialer"
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"github.com/edgelesssys/constellation/internal/state"
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"github.com/spf13/afero"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"google.golang.org/grpc"
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)
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func TestRecoverCmdArgumentValidation(t *testing.T) {
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testCases := map[string]struct {
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args []string
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wantErr bool
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}{
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"no args": {[]string{}, false},
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"too many arguments": {[]string{"abc"}, true},
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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 := assert.New(t)
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cmd := NewRecoverCmd()
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err := cmd.ValidateArgs(tc.args)
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if tc.wantErr {
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assert.Error(err)
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} else {
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assert.NoError(err)
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}
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})
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}
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}
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func TestRecover(t *testing.T) {
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validState := state.ConstellationState{CloudProvider: "GCP"}
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invalidCSPState := state.ConstellationState{CloudProvider: "invalid"}
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successActions := []func(stream recoverproto.API_RecoverServer) error{
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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func(stream recoverproto.API_RecoverServer) error {
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return stream.Send(&recoverproto.RecoverResponse{
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DiskUuid: "00000000-0000-0000-0000-000000000000",
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})
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},
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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}
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testCases := map[string]struct {
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existingState state.ConstellationState
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recoverServerAPI *stubRecoveryServer
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masterSecret testvector.HKDF
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endpointFlag string
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masterSecretFlag string
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configFlag string
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stateless bool
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wantErr bool
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}{
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"works": {
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existingState: validState,
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recoverServerAPI: &stubRecoveryServer{actions: successActions},
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endpointFlag: "192.0.2.1",
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masterSecret: testvector.HKDFZero,
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},
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"missing flags": {
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recoverServerAPI: &stubRecoveryServer{actions: successActions},
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wantErr: true,
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},
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"missing config": {
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recoverServerAPI: &stubRecoveryServer{actions: successActions},
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endpointFlag: "192.0.2.1",
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masterSecret: testvector.HKDFZero,
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configFlag: "nonexistent-config",
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wantErr: true,
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},
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"missing state": {
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existingState: validState,
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recoverServerAPI: &stubRecoveryServer{actions: successActions},
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endpointFlag: "192.0.2.1",
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masterSecret: testvector.HKDFZero,
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stateless: true,
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wantErr: true,
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},
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"invalid cloud provider": {
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existingState: invalidCSPState,
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recoverServerAPI: &stubRecoveryServer{actions: successActions},
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endpointFlag: "192.0.2.1",
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masterSecret: testvector.HKDFZero,
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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 := assert.New(t)
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require := require.New(t)
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cmd := NewRecoverCmd()
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cmd.SetContext(context.Background())
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cmd.Flags().String("config", constants.ConfigFilename, "") // register persistent flag manually
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out := &bytes.Buffer{}
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cmd.SetOut(out)
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cmd.SetErr(&bytes.Buffer{})
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if tc.endpointFlag != "" {
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require.NoError(cmd.Flags().Set("endpoint", tc.endpointFlag))
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}
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if tc.masterSecretFlag != "" {
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require.NoError(cmd.Flags().Set("master-secret", tc.masterSecretFlag))
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}
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if tc.configFlag != "" {
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require.NoError(cmd.Flags().Set("config", tc.configFlag))
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}
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fs := afero.NewMemMapFs()
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fileHandler := file.NewHandler(fs)
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config := defaultConfigWithExpectedMeasurements(t, config.Default(), cloudprovider.FromString(tc.existingState.CloudProvider))
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require.NoError(fileHandler.WriteYAML(constants.ConfigFilename, config))
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require.NoError(fileHandler.WriteJSON(
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"constellation-mastersecret.json",
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masterSecret{Key: tc.masterSecret.Secret, Salt: tc.masterSecret.Salt},
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file.OptNone,
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))
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if !tc.stateless {
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require.NoError(fileHandler.WriteJSON(
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constants.StateFilename,
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tc.existingState,
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file.OptNone,
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))
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}
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netDialer := testdialer.NewBufconnDialer()
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newDialer := func(*cloudcmd.Validator) *dialer.Dialer {
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return dialer.New(nil, nil, netDialer)
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}
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serverCreds := atlscredentials.New(nil, nil)
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recoverServer := grpc.NewServer(grpc.Creds(serverCreds))
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recoverproto.RegisterAPIServer(recoverServer, tc.recoverServerAPI)
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listener := netDialer.GetListener(net.JoinHostPort("192.0.2.1", strconv.Itoa(constants.RecoveryPort)))
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go recoverServer.Serve(listener)
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defer recoverServer.GracefulStop()
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err := recover(cmd, fileHandler, newDialer)
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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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assert.NoError(err)
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assert.Contains(out.String(), "Pushed recovery key.")
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})
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}
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}
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func TestParseRecoverFlags(t *testing.T) {
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testCases := map[string]struct {
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args []string
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wantFlags recoverFlags
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wantErr bool
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}{
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"no flags": {
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wantErr: true,
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},
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"invalid ip": {
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args: []string{"-e", "192.0.2.1:2:2"},
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wantErr: true,
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},
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"minimal args set": {
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args: []string{"-e", "192.0.2.1:2"},
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wantFlags: recoverFlags{
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endpoint: "192.0.2.1:2",
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secretPath: "constellation-mastersecret.json",
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},
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},
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"all args set": {
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args: []string{"-e", "192.0.2.1:2", "--config", "config-path", "--master-secret", "/path/super-secret.json"},
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wantFlags: recoverFlags{
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endpoint: "192.0.2.1:2",
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secretPath: "/path/super-secret.json",
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configPath: "config-path",
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},
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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 := assert.New(t)
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require := require.New(t)
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cmd := NewRecoverCmd()
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cmd.Flags().String("config", "", "") // register persistent flag manually
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require.NoError(cmd.ParseFlags(tc.args))
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flags, err := parseRecoverFlags(cmd)
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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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assert.NoError(err)
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assert.Equal(tc.wantFlags, flags)
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})
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}
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}
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func TestDoRecovery(t *testing.T) {
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someErr := errors.New("error")
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testCases := map[string]struct {
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recoveryServer *stubRecoveryServer
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wantErr bool
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}{
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"success": {
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recoveryServer: &stubRecoveryServer{actions: []func(stream recoverproto.API_RecoverServer) error{
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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func(stream recoverproto.API_RecoverServer) error {
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return stream.Send(&recoverproto.RecoverResponse{
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DiskUuid: "00000000-0000-0000-0000-000000000000",
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})
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},
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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}},
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},
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"error on first recv": {
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recoveryServer: &stubRecoveryServer{actions: []func(stream recoverproto.API_RecoverServer) error{
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func(stream recoverproto.API_RecoverServer) error {
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return someErr
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},
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}},
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wantErr: true,
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},
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"error on send": {
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recoveryServer: &stubRecoveryServer{actions: []func(stream recoverproto.API_RecoverServer) error{
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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func(stream recoverproto.API_RecoverServer) error {
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return someErr
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},
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}},
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wantErr: true,
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},
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"error on second recv": {
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recoveryServer: &stubRecoveryServer{actions: []func(stream recoverproto.API_RecoverServer) error{
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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func(stream recoverproto.API_RecoverServer) error {
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return stream.Send(&recoverproto.RecoverResponse{
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DiskUuid: "00000000-0000-0000-0000-000000000000",
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})
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},
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func(stream recoverproto.API_RecoverServer) error {
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return someErr
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},
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}},
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wantErr: true,
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},
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"final message is an error": {
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recoveryServer: &stubRecoveryServer{actions: []func(stream recoverproto.API_RecoverServer) error{
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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func(stream recoverproto.API_RecoverServer) error {
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return stream.Send(&recoverproto.RecoverResponse{
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DiskUuid: "00000000-0000-0000-0000-000000000000",
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})
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},
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func(stream recoverproto.API_RecoverServer) error {
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_, err := stream.Recv()
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return err
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},
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func(stream recoverproto.API_RecoverServer) error {
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return someErr
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},
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}},
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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 := assert.New(t)
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netDialer := testdialer.NewBufconnDialer()
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serverCreds := atlscredentials.New(nil, nil)
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recoverServer := grpc.NewServer(grpc.Creds(serverCreds))
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recoverproto.RegisterAPIServer(recoverServer, tc.recoveryServer)
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addr := net.JoinHostPort("192.0.2.1", strconv.Itoa(constants.RecoveryPort))
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listener := netDialer.GetListener(addr)
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go recoverServer.Serve(listener)
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defer recoverServer.GracefulStop()
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recoverDoer := &recoverDoer{
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dialer: dialer.New(nil, nil, netDialer),
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endpoint: addr,
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measurementSecret: []byte("measurement-secret"),
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getDiskKey: func(string) ([]byte, error) {
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return []byte("disk-key"), nil
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},
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}
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err := recoverDoer.Do(context.Background())
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if tc.wantErr {
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assert.Error(err)
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} else {
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assert.NoError(err)
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}
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})
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}
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}
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func TestDeriveStateDiskKey(t *testing.T) {
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testCases := map[string]struct {
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masterSecret testvector.HKDF
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}{
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"all zero": {
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masterSecret: testvector.HKDFZero,
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},
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"all 0xff": {
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masterSecret: testvector.HKDF0xFF,
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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 := assert.New(t)
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getKeyFunc := getStateDiskKeyFunc(tc.masterSecret.Secret, tc.masterSecret.Salt)
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stateDiskKey, err := getKeyFunc(tc.masterSecret.Info)
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assert.NoError(err)
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assert.Equal(tc.masterSecret.Output, stateDiskKey)
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})
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}
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}
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type stubRecoveryServer struct {
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actions []func(recoverproto.API_RecoverServer) error
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recoverproto.UnimplementedAPIServer
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}
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func (s *stubRecoveryServer) Recover(stream recoverproto.API_RecoverServer) error {
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for _, action := range s.actions {
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if err := action(stream); err != nil {
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return err
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}
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}
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return nil
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}
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