108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
/*
|
|
Copyright © 2022 - 2025 SUSE LLC
|
|
|
|
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 dmidecode
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"os/exec"
|
|
"strings"
|
|
|
|
values "github.com/rancher/wrangler/v2/pkg/data"
|
|
"github.com/rancher/wrangler/v2/pkg/kv"
|
|
)
|
|
|
|
var smbiosTypes = []string{
|
|
"0", // BIOS info
|
|
"1", // System information
|
|
"2", // Base Board Information
|
|
"3", // Chassis Information
|
|
"4", // Processor information
|
|
"11", // OEM strings
|
|
}
|
|
|
|
func Decode() (map[string]interface{}, error) {
|
|
buf := &bytes.Buffer{}
|
|
for _, handle := range smbiosTypes {
|
|
tempBuf := &bytes.Buffer{}
|
|
cmd := exec.Command("dmidecode", "-t", handle)
|
|
cmd.Stdout = tempBuf
|
|
|
|
if err := cmd.Run(); err != nil {
|
|
return nil, fmt.Errorf("looking up SMBIOS tables (using dmidecode): %w", err)
|
|
}
|
|
buf.Write(tempBuf.Bytes())
|
|
}
|
|
|
|
return dmiOutputToMap(buf), nil
|
|
}
|
|
|
|
func dmiOutputToMap(buf io.Reader) map[string]interface{} {
|
|
var (
|
|
result = map[string]interface{}{}
|
|
scanner = bufio.NewScanner(buf)
|
|
start = false
|
|
lastKey []string
|
|
stopLines = map[string]bool{
|
|
"OEM-specific Type": true,
|
|
"End Of Table": true,
|
|
}
|
|
)
|
|
|
|
for scanner.Scan() {
|
|
line := scanner.Text()
|
|
if strings.HasPrefix(line, "Handle ") {
|
|
start = true
|
|
continue
|
|
} else if strings.TrimSpace(line) == "" || !start || stopLines[line] {
|
|
start = false
|
|
continue
|
|
}
|
|
|
|
var key []string
|
|
for strings.HasPrefix(line, "\t") {
|
|
line = strings.TrimPrefix(line, "\t")
|
|
if len(lastKey) > len(key) {
|
|
key = append(key, lastKey[len(key)])
|
|
}
|
|
}
|
|
name, value := kv.Split(line, ": ")
|
|
key = append(key, name)
|
|
|
|
if strings.TrimSpace(value) != "" || strings.Contains(line, ":") {
|
|
values.PutValue(result, value, key...)
|
|
} else if len(key) > 1 {
|
|
parentKey := key[:len(key)-1]
|
|
parentValue := values.GetValueN(result, parentKey...)
|
|
if parentSlice, ok := parentValue.([]interface{}); ok {
|
|
parentValue = append(parentSlice, name)
|
|
} else {
|
|
parentValue = []interface{}{name}
|
|
}
|
|
values.PutValue(result, parentValue, parentKey...)
|
|
} else {
|
|
values.PutValue(result, map[string]interface{}{}, key...)
|
|
}
|
|
|
|
lastKey = key
|
|
}
|
|
|
|
return result
|
|
}
|