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0f0cda49a7
If we hit any error while running the cryptosetup commands we are logging only the error message. with only error message it is difficult to analyze the problem, logging the stdError will help us to check what is the problem. updates: #2610 Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
88 lines
2.5 KiB
Go
88 lines
2.5 KiB
Go
/*
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Copyright 2019 The Ceph-CSI Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"bytes"
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"fmt"
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"os/exec"
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"strings"
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)
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// LuksFormat sets up volume as an encrypted LUKS partition.
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func LuksFormat(devicePath, passphrase string) (string, string, error) {
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return execCryptsetupCommand(
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&passphrase,
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"-q",
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"luksFormat",
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"--type",
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"luks2",
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"--hash",
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"sha256",
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devicePath,
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"-d",
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"/dev/stdin")
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}
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// LuksOpen opens LUKS encrypted partition and sets up a mapping.
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func LuksOpen(devicePath, mapperFile, passphrase string) (string, string, error) {
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// cryptsetup option --disable-keyring (introduced with cryptsetup v2.0.0)
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// will be ignored with luks1
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return execCryptsetupCommand(&passphrase, "luksOpen", devicePath, mapperFile, "--disable-keyring", "-d", "/dev/stdin")
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}
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// LuksResize resizes LUKS encrypted partition.
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func LuksResize(mapperFile string) (string, string, error) {
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return execCryptsetupCommand(nil, "resize", mapperFile)
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}
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// LuksClose removes existing mapping.
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func LuksClose(mapperFile string) (string, string, error) {
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return execCryptsetupCommand(nil, "luksClose", mapperFile)
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}
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// LuksStatus returns encryption status of a provided device.
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func LuksStatus(mapperFile string) (string, string, error) {
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return execCryptsetupCommand(nil, "status", mapperFile)
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}
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func execCryptsetupCommand(stdin *string, args ...string) (string, string, error) {
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var (
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program = "cryptsetup"
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cmd = exec.Command(program, args...) // #nosec:G204, commands executing not vulnerable.
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sanitizedArgs = StripSecretInArgs(args)
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stdoutBuf bytes.Buffer
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stderrBuf bytes.Buffer
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)
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cmd.Stdout = &stdoutBuf
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cmd.Stderr = &stderrBuf
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if stdin != nil {
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cmd.Stdin = strings.NewReader(*stdin)
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}
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err := cmd.Run()
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stdout := stdoutBuf.String()
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stderr := stderrBuf.String()
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if err != nil {
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return stdout, stderr, fmt.Errorf("an error (%v)"+
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" occurred while running %s args: %v", err, program, sanitizedArgs)
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}
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return stdout, stderr, err
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}
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