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https://github.com/ceph/ceph-csi.git
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bd204d7d45
Every Ceph CLI that is invoked at present passes the key via the --key option, and hence is exposed to key being displayed on the host using a ps command or such means. This commit addresses this issue by stashing the key in a tmp file, which is again created on a tmpfs (or empty dir backed by memory). Further using such tmp files as arguments to the --keyfile option for every CLI that is invoked. This prevents the key from being visible as part of the argument list of the invoked program on the system. Fixes: #318 Signed-off-by: ShyamsundarR <srangana@redhat.com>
84 lines
1.8 KiB
Go
84 lines
1.8 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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"strings"
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)
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const (
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keyArg = "--key="
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keyFileArg = "--keyfile="
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secretArg = "secret="
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optionsArgSeparator = ','
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strippedKey = "--key=***stripped***"
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strippedKeyFile = "--keyfile=***stripped***"
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strippedSecret = "secret=***stripped***"
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)
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// StripSecretInArgs strips values of either "--key"/"--keyfile" or "secret=".
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// `args` is left unchanged.
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// Expects only one occurrence of either "--key"/"--keyfile" or "secret=".
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func StripSecretInArgs(args []string) []string {
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out := make([]string, len(args))
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copy(out, args)
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if !stripKey(out) {
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stripSecret(out)
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}
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return out
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}
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func stripKey(out []string) bool {
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for i := range out {
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if strings.HasPrefix(out[i], keyArg) {
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out[i] = strippedKey
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return true
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}
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if strings.HasPrefix(out[i], keyFileArg) {
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out[i] = strippedKeyFile
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return true
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}
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}
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return false
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}
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func stripSecret(out []string) bool {
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for i := range out {
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arg := out[i]
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begin := strings.Index(arg, secretArg)
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if begin == -1 {
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continue
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}
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end := strings.IndexByte(arg[begin+len(secretArg):], optionsArgSeparator)
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out[i] = arg[:begin] + strippedSecret
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if end != -1 {
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out[i] += arg[end+len(secretArg):]
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}
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return true
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}
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return false
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}
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