93 lines
3.0 KiB
Go
93 lines
3.0 KiB
Go
/*
|
|
© Copyright IBM Corporation 2023
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
package fips
|
|
|
|
import (
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/ibm-messaging/mq-container/internal/command"
|
|
"github.com/ibm-messaging/mq-container/pkg/logger"
|
|
)
|
|
|
|
var (
|
|
FIPSEnabledType int
|
|
)
|
|
|
|
// FIPS has been turned off either because OS is not FIPS enabled or
|
|
// MQ_ENABLE_FIPS environment variable is set to "false"
|
|
const FIPS_ENABLED_OFF = 0
|
|
|
|
// FIPS is turned ON
|
|
const FIPS_ENABLED_ON = 1
|
|
|
|
// FIPS enabled at operating system level
|
|
const FIPS_ENABLED_PLATFORM = 1
|
|
|
|
// FIPS enabled via environment variable
|
|
const FIPS_ENABLED_ENV_VAR = 2
|
|
|
|
// Get FIPS enabled type.
|
|
func ProcessFIPSType(logs *logger.Logger) {
|
|
// Run "sysctl crypto.fips_enabled" command to determine if FIPS has been enabled
|
|
// on OS.
|
|
FIPSEnabledType = FIPS_ENABLED_OFF
|
|
|
|
out, _, err := command.Run("sysctl", "crypto.fips_enabled")
|
|
if err == nil {
|
|
// Check the output of the command for expected output
|
|
if strings.Contains(out, "crypto.fips_enabled = 1") {
|
|
FIPSEnabledType = FIPS_ENABLED_PLATFORM
|
|
}
|
|
}
|
|
|
|
// Check if we have been asked to override FIPS cryptography
|
|
fipsOverride, fipsOverrideSet := os.LookupEnv("MQ_ENABLE_FIPS")
|
|
if fipsOverrideSet {
|
|
if strings.EqualFold(fipsOverride, "false") || strings.EqualFold(fipsOverride, "0") {
|
|
FIPSEnabledType = FIPS_ENABLED_OFF
|
|
} else if strings.EqualFold(fipsOverride, "true") || strings.EqualFold(fipsOverride, "1") {
|
|
// This is the case where OS is not FIPS compliant but we have been asked to run MQ
|
|
// queue manager, web server in FIPS mode. This case can be used when running docker tests.
|
|
FIPSEnabledType = FIPS_ENABLED_ENV_VAR
|
|
} else if strings.EqualFold(fipsOverride, "auto") {
|
|
// This is the default case. Leave it to the OS default as determine above
|
|
} else {
|
|
// We don't recognise the value specified. Log a warning and carry on.
|
|
if logs != nil {
|
|
logs.Printf("Invalid value '%s' was specified for MQ_ENABLE_FIPS. The value has been ignored.\n", fipsOverride)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func IsFIPSEnabled() bool {
|
|
return FIPSEnabledType > FIPS_ENABLED_OFF
|
|
}
|
|
|
|
// Log a message on the console to indicate FIPS certified
|
|
// cryptography being used.
|
|
func PostInit(log *logger.Logger) {
|
|
message := "FIPS cryptography is not enabled."
|
|
if FIPSEnabledType == FIPS_ENABLED_PLATFORM {
|
|
message = "FIPS cryptography is enabled. FIPS cryptography setting on the host is 'true'."
|
|
} else if FIPSEnabledType == FIPS_ENABLED_ENV_VAR {
|
|
message = "FIPS cryptography is enabled. FIPS cryptography setting on the host is 'false'."
|
|
}
|
|
|
|
log.Println(message)
|
|
}
|