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This adds some example binaries which are useful for manual testing: - activate-volume: An example that makes use of ActivateVolumeWithTPMSealedKey and ActivateVolumeWithRecoveryKey. - change-pin: An example that makes use of ChangePIN. - provision-status: An example that makes use of ProvisionStatus. - provision-tpm: An example that makes use of ProvistionTPM. - seal-key: An example that makes use of SealKeyToTPM to seal a key to PCR7 on Ubuntu classic systems. - unseal-key: An example that makes use of SealedKeyObject.UnsealFromTPM.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,7 @@ | ||
| examples/activate-volume/activate-volume | ||
| examples/change-pin/change-pin | ||
| examples/provision-status/provision-status | ||
| examples/provision-tpm/provision-tpm | ||
| examples/seal-key/seal-key | ||
| examples/unseal-key/unseal-key | ||
| vendor/*/ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| // -*- Mode: Go; indent-tabs-mode: t -*- | ||
|
|
||
| /* | ||
| * Copyright (C) 2019 Canonical Ltd | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 3 as | ||
| * published by the Free Software Foundation. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| * | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "flag" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "strconv" | ||
| "strings" | ||
|
|
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| "github.com/snapcore/secboot" | ||
| ) | ||
|
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| func run() int { | ||
| args := flag.Args() | ||
| if len(args) == 0 { | ||
| fmt.Printf("Usage: activate-volume VOLUME SOURCE-DEVICE SEALED-KEY-FILE [AUTH-FILE] [OPTIONS]\n") | ||
| return 0 | ||
| } | ||
|
|
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| if len(args) < 3 { | ||
| fmt.Fprintf(os.Stderr, "Cannot activate device: insufficient arguments\n") | ||
| return 1 | ||
| } | ||
|
|
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| volume := args[0] | ||
| sourceDevice := args[1] | ||
|
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| var keyFilePath string | ||
| if args[2] != "" && args[2] != "-" && args[2] != "none" { | ||
| keyFilePath = args[2] | ||
| } | ||
|
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| var authFilePath string | ||
| if len(args) >= 4 && args[3] != "" && args[3] != "-" && args[3] != "none" { | ||
| authFilePath = args[3] | ||
| } | ||
|
|
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| var lock bool | ||
| var forceRecovery bool | ||
| pinTries := 1 | ||
| recoveryTries := 1 | ||
| var activateOptions []string | ||
|
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| if len(args) >= 5 && args[4] != "" && args[4] != "-" && args[4] != "none" { | ||
| opts := strings.Split(args[4], ",") | ||
| for _, opt := range opts { | ||
| switch { | ||
| case opt == "lock": | ||
| lock = true | ||
| case opt == "force-recovery": | ||
| forceRecovery = true | ||
| case strings.HasPrefix(opt, "pin-tries="): | ||
| u, err := strconv.ParseUint(strings.TrimPrefix(opt, "pin-tries="), 10, 8) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot activate device %s: invalid value for \"recovery-tries=\"\n", sourceDevice) | ||
| return 1 | ||
| } | ||
| pinTries = int(u) | ||
| case strings.HasPrefix(opt, "recovery-tries="): | ||
| u, err := strconv.ParseUint(strings.TrimPrefix(opt, "recovery-tries="), 10, 8) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot activate device %s: invalid value for \"recovery-tries=\"\n", sourceDevice) | ||
| return 1 | ||
| } | ||
| recoveryTries = int(u) | ||
| default: | ||
| activateOptions = append(activateOptions, opt) | ||
| } | ||
| } | ||
| } | ||
|
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| var authReader io.Reader | ||
| if authFilePath != "" { | ||
| f, err := os.Open(authFilePath) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot open auth file: %v\n", err) | ||
| return 1 | ||
| } | ||
| defer f.Close() | ||
| authReader = f | ||
| } | ||
|
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| if !forceRecovery { | ||
| tpm, err := secboot.ConnectToDefaultTPM() | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot connect to TPM: %v\n", err) | ||
| return 1 | ||
| } | ||
| defer tpm.Close() | ||
|
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| options := secboot.ActivateWithTPMSealedKeyOptions{ | ||
| PINTries: pinTries, | ||
| RecoveryKeyTries: recoveryTries, | ||
| ActivateOptions: activateOptions, | ||
| LockSealedKeyAccess: lock} | ||
| if success, err := secboot.ActivateVolumeWithTPMSealedKey(tpm, volume, sourceDevice, keyFilePath, authReader, &options); err != nil { | ||
| if !success { | ||
| fmt.Fprintf(os.Stderr, "Activation failed: %v\n", err) | ||
| return 1 | ||
| } | ||
| fmt.Printf("Activation succeeded with fallback recovery key: %v\n", err) | ||
| } | ||
| } else { | ||
| options := secboot.ActivateWithRecoveryKeyOptions{ | ||
| Tries: recoveryTries, | ||
| ActivateOptions: activateOptions} | ||
| if err := secboot.ActivateVolumeWithRecoveryKey(volume, sourceDevice, authReader, &options); err != nil { | ||
| fmt.Fprintf(os.Stderr, "Activation with recovery key failed: %v\n", err) | ||
| return 1 | ||
| } | ||
| } | ||
|
|
||
| return 0 | ||
| } | ||
|
|
||
| func main() { | ||
| flag.Parse() | ||
| os.Exit(run()) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| // -*- Mode: Go; indent-tabs-mode: t -*- | ||
|
|
||
| /* | ||
| * Copyright (C) 2019 Canonical Ltd | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 3 as | ||
| * published by the Free Software Foundation. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| * | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "flag" | ||
| "fmt" | ||
| "os" | ||
|
|
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| "github.com/snapcore/secboot" | ||
| ) | ||
|
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| var keyFile string | ||
| var currentPin string | ||
|
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| func init() { | ||
| flag.StringVar(¤tPin, "current-pin", "", "") | ||
| flag.StringVar(&keyFile, "key-file", "", "") | ||
| } | ||
|
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| func run() int { | ||
| if keyFile == "" { | ||
| fmt.Fprintf(os.Stderr, "Cannot change PIN: missing -key-file\n") | ||
| return 1 | ||
| } | ||
|
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| args := flag.Args() | ||
| var pin string | ||
| if len(args) > 0 { | ||
| pin = args[0] | ||
| } | ||
|
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| tpm, err := secboot.ConnectToDefaultTPM() | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot connect to TPM: %v\n", err) | ||
| return 1 | ||
| } | ||
| defer tpm.Close() | ||
|
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| if err := secboot.ChangePIN(tpm, keyFile, currentPin, pin); err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot change PIN: %v\n", err) | ||
| return 1 | ||
| } | ||
|
|
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| return 0 | ||
| } | ||
|
|
||
| func main() { | ||
| flag.Parse() | ||
| os.Exit(run()) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| // -*- Mode: Go; indent-tabs-mode: t -*- | ||
|
|
||
| /* | ||
| * Copyright (C) 2019 Canonical Ltd | ||
| * | ||
| * This program is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 3 as | ||
| * published by the Free Software Foundation. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| * | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
|
|
||
| "github.com/snapcore/secboot" | ||
| ) | ||
|
|
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| func run() int { | ||
| tpm, err := secboot.ConnectToDefaultTPM() | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot connect to TPM: %v\n", err) | ||
| return 1 | ||
| } | ||
| defer tpm.Close() | ||
|
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| status, err := secboot.ProvisionStatus(tpm) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Cannot determine status: %v\n", err) | ||
| return 1 | ||
| } | ||
|
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| if status&secboot.AttrValidSRK > 0 { | ||
| fmt.Println("Valid SRK found in TPM") | ||
| } else { | ||
| fmt.Println("** ERROR: TPM does not have a valid SRK **") | ||
| } | ||
|
|
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| if status&secboot.AttrValidEK > 0 { | ||
| fmt.Println("Valid EK found in TPM") | ||
| } else { | ||
| fmt.Println("** ERROR: TPM does not have a valid EK **") | ||
| } | ||
|
|
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| if status&secboot.AttrDAParamsOK > 0 { | ||
| fmt.Println("TPM's DA parameters are correct") | ||
| } else { | ||
| fmt.Println("** ERROR: TPM's DA parameters are not the values set during provisioning **") | ||
| } | ||
|
|
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| if status&secboot.AttrOwnerClearDisabled > 0 { | ||
| fmt.Println("TPM does not allow clearing with the lockout hierarchy authorization") | ||
| } else { | ||
| fmt.Println("** ERROR: TPM allows clearing with the lockout hierarchy authorization **") | ||
| } | ||
|
|
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| if status&secboot.AttrLockoutAuthSet > 0 { | ||
| fmt.Println("The lockout hierarchy authorization is set") | ||
| } else { | ||
| fmt.Println("** ERROR: The lockout hierarchy authorization is not set **") | ||
| } | ||
|
|
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| if status&secboot.AttrValidLockNVIndex > 0 { | ||
| fmt.Println("Valid lock NV index found in TPM") | ||
| } else { | ||
| fmt.Println("** ERROR: TPM does not have a valid lock NV index **") | ||
| } | ||
|
|
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| return 0 | ||
| } | ||
|
|
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| func main() { | ||
| os.Exit(run()) | ||
| } |
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