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纯Golang实现的dmidecode, 零依赖, 支持Linux, Unix, Windows

License: MIT License

Go 99.22% Makefile 0.78%

dmidecode smbios dmi hardware device-management golang-dmidecode golang-library

dmidecode's Introduction

dmidecode

纯Golang实现的dmidecode, 零依赖, 支持Linux, Unix, Windows

功能和命令行的dmidecode工具一样, 使用方式参考: example

开发过程相关小博客: 使用Golang重新实现dmidecode

安装方式

$ go get "github.com/yumaojun03/dmidecode"

使用样例

package main

import (
	"fmt"
	"os"

	"github.com/yumaojun03/dmidecode"
)

func checkError(err error) {
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}

func main() {
	dmi, err := dmidecode.New()
	checkError(err)

	infos, err := dmi.BIOS()
	// 支持以下类型的解析
	// dmi.BaseBoard()
	// dmi.Chassis()
	// dmi.MemoryArray()
	// dmi.MemoryDevice()
	// dmi.Onboard()
	// dmi.PortConnector()
	// dmi.Processor()
	// dmi.ProcessorCache()
	// dmi.Slot()
	// dmi.System()
	checkError(err)

	for i := range infos {
		fmt.Println(infos[i])
	}
}

CLI 使用

$ go run cmd/main.go -d -t [bios, system, baseboard, chassis, onboard, port, processor, memory, slot]

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dmidecode's Issues

读取设备信息时报错

设备信息

谢谢

机载设备获取不正确，On Board Device获取不出来

我的命令行输出：
On Board Device 1 Information
Type: Video
Status: Disabled
Description: VMware SVGA II
On Board Device 2 Information
Type: Sound
Status: Disabled
Description: ES1371
使用dmi.Onboard()获取失败：
获取出来是这个：SMBIOS 2.7.0 - table: address: 0xe0010, size: 28932

about the question “ROM Size:0”

为什么不返回一个对象，而返回一个数组呢？

dmi, _ := dmidecode.New()
infos, _ :=dmi.System()

infos为什么不返回一个对象，而返回一个数组呢？
想读取UUID或其他特定一个值的时候很不方便

feature request: Obtain OEM info

sudo dmidecode -t 11

output like:

# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.2.0 present.

Handle 0x0B00, DMI type 11, 5 bytes
OEM Strings
	String 1: Dell System
	String 2: 5[0000]
	String 3: 14[1]
	String 4: 26[0]
	String 5: 17[A4B60183CF8FDCD8]
	String 6: 17[A6BDC5E1EE433F13]
	String 7: 18[0]
	String 8: 19[1]
	String 9: 19[1]

获取OEM信息时候报错

dmi.OEM undefined (type *dmidecode.Decoder has no field or method OEM)
大佬帮看看。

wrong system-uuid

As of version 2.6 of the SMBIOS specification, the first 3 fields of the UUID are supposed to be encoded on little-endian.

the version should be SMBIOS version, not system-version.

可以默认不打印SMBIOS版本信息吗？

dmidecode/smbios/structure.go

Line 73 in 3e5ab70

fmt.Printf("SMBIOS %d.%d.%d - table: address: %#x, size: %d\n",

调用库的时候，老是输出版本信息，可以默认去掉吗？

parse的时候有panic的情况，我觉得应该处理一下panic的情况！

Hello， smbios/structrue.go的GetString函数可能数组越界panic

func (s *Structure) GetString(offset int) string {
if offset > s.FormattedCount()-1 {
return "Unknown"
}

index := s.Formatted[offset]

if index == 0 {
	return "Unknown"
}

return s.Strings[index-1]  // 这里是否需要判断下是否越界，否则异常下会直接panic？

}

cpuid似乎解析的不对

命令：dmidecode -t 4

dmidecode 3.2

Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0004, DMI type 4, 42 bytes
Processor Information
Socket Designation: CPU #000
Type: Central Processor
Family: Unknown
Manufacturer: GenuineIntel
ID: EA 06 09 00 FF FB 8B 1F
Version: Intel(R) Core(TM) i5-8500 CPU @ 3.00GHz
Voltage: 3.3 V
External Clock: Unknown
Max Speed: 30000 MHz
Current Speed: 3000 MHz
Status: Populated, Enabled
Upgrade: ZIF Socket
L1 Cache Handle: 0x0094
L2 Cache Handle: 0x0114
L3 Cache Handle: Not Provided
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 2
Core Enabled: 2
Characteristics:
64-bit capable
Multi-Core
Execute Protection
这是我命令行返回的CPU信息，我获取到的ID是0，我想获取的是这个 ID: EA 06 09 00 FF FB 8B 1F

dmidecode -t processor bug

cmd/main.go

	case "processor":
		infos, err := decoder.Processor()
		checkDecodeErr(t, err)
		for i := range infos {
			fmt.Println(infos[i])
		}
		pcinfos, err := decoder.ProcessorCache()
		checkDecodeErr(t, err)
		for i := range infos {
			fmt.Println(pcinfos[i])
		}

should be

	case "processor":
		infos, err := decoder.Processor()
		checkDecodeErr(t, err)
		for i := range infos {
			fmt.Println(infos[i])
		}
		pcinfos, err := decoder.ProcessorCache()
		checkDecodeErr(t, err)
		for i := range pcinfos {
			fmt.Println(pcinfos[i])
		}

centos6下执行报错

SMBIOS 2.7.0 - table: address: 0xcf42c000, size: 4858
panic: runtime error: index out of range [36] with length 36

goroutine 1 [running]:
github.com/yumaojun03/dmidecode/parser/processor.ParseProcessor(0xc0002ca980, 0xc0002ca980, 0x2, 0xc00023b8a0)
	/data/apps/gopath/pkg/mod/github.com/yumaojun03/[email protected]/parser/processor/parse.go:47 +0x8ef
github.com/yumaojun03/dmidecode.(*Decoder).Processor(0xc000222280, 0xc00021d904, 0x4, 0xc00021d904, 0x4, 0x4)
	/data/apps/gopath/pkg/mod/github.com/yumaojun03/[email protected]/decoder.go:195 +0x115

permission denied

failed to open stream: open /sys/firmware/dmi/tables/smbios_entry_point: permission denied
这个该怎么解决，已经加过777的权限了

runtime error: invalid memory address or nil pointer

env:
Red Hat Enterprise Linux Server release 6.10 (Santiago)
Linux version 2.6.32-754.el6.x86_64 ([email protected]) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-23) (GCC) ) #1 SMP Thu May 24 18:18:25 EDT 2018

error:
failed to open stream: no SMBIOS entry point found in memorypanic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x38 pc=0x9c5449]

goroutine 1 [running]:
github.com/yumaojun03/dmidecode.(*Decoder).System(0x0, 0xc00000e018, 0xc000575d70, 0x1, 0x1, 0x3c)
C:/Users/ss/go/pkg/mod/github.com/yumaojun03/[email protected]/decoder.go:104 +0x29

Is it not supported by the system or for other reasons?

友善R1S开发板不行

ARM64，UBUNTU
failed to open stream: read /dev/mem: bad address

应该是dmi, err := dmidecode.New()就报错了

ls -l /dev/mem
crw-r----- 1 root kmem 1, 1 Feb 12 2016 /dev/mem

dmidecode 报

dmidecode 3.0

No SMBIOS nor DMI entry point found, sorry.