查看“Wireshark”的源代码

Wireshark是一个开源的网路数据包分析软件，支持实时捕获数据包和离线分析。

==简介==
===时间轴===

===安装===
====Windows====
* 下载安装程序，https://www.wireshark.org/#download
* 点击安装

{{了解更多
|[https://www.wireshark.org/docs/wsug_html_chunked/ChBuildInstallWinInstall.html  Wireshark 文档：Windows下安装Wireshark]
}}


==快速入门==
* 启动wireshark
* 选择所需要抓包的网口，双击该网口就会启动实时捕获。所有经过该网口数据包都会被捕获。
* 执行操作，如在命令行输入<code>ping www.baidu.com</code> 命令。
* 过滤数据包只显示需要的数据包，在wireshark显示数据包上方的输入框中填入显示过滤器<code>ip.addr == 192.168.1.2 and icmp</code>
* 捕获完成后，可以点击停止捕获分组，点击保存捕获文件即可保存。

==捕获环境==


{{了解更多
|[https://gitlab.com/wireshark/wireshark/-/wikis/CaptureSetup Wireshark Wiki：捕获设置]
}}
==实时捕获==
===捕获过滤器===

==数据包==
===数据包详情===
数据包列表点击某个数据包，会显示详情。
{| class="wikitable" 
! 名称
! 描述
|-
| Frame
| 显示数据包概览信息。如数据包大小、接口类型、接口ID、时间等。
|-
| Ethernet II
| 显示第二层数据链路层信息， 设备MAC地址 Src, Dst 
|-
| Internet Protocol Version 4
| 显示第三层网络层信息，
|-
|Internet Control Message Protocol
| 
|-
| Transmission Control Protocol
|
|-
| 
|
|-
| 
|
|}


===数据包列表===
启动捕获时，会显示捕获到的数据包列表。查看或设置颜色规则：视图》着色规则。数据包列表每列含义：
{| class="wikitable" 
! 名称
! 描述
! 示例
|-
| No.
| 序号
| 1
|-
| Time
| 
| 
|-
| Source
| 数据包源地址
| 192.168.1.100
|-
| Destination
| 数据包目的地址
|
|-
| Protocol
| 协议名称
| TCP、TLSv1.2
|-
|Length
|
| 50
|-
| Info
| 数据包信息摘要
| Application Data
|}

==显示过滤器==
Wireshark有两种过滤器：捕获过滤器和显示过滤器。

{{了解更多
|[https://www.wireshark.org/docs/wsug_html_chunked/ChWorkDisplayFilterSection.html Wireshark 文档：查看时过滤数据包]
|[https://www.wireshark.org/docs/wsug_html_chunked/ChWorkBuildDisplayFilterSection.html Wireshark 文档：构造过滤器]
}}

===比较运算符===
{| class="wikitable" 
|-
! 名称
! 别名
! 符号
! 描述
! 示例
|-
| eq
| any_eq
| ==
| Equal (any if more than one)
| ip.src == 10.0.0.5
|-
| ne
| all_ne
| !=
| Not equal (all if more than one)
| ip.src != 10.0.0.5
|-
| 
| all_eq
| ===
| Equal (all if more than one)
| ip.src === 10.0.0.5
|-
| 
| any_ne
| !==
| Not equal (any if more than one)
| ip.src !== 10.0.0.5
|-
| gt
| 
| >
| Greater than
| frame.len > 10
|-
| lt
| 
| <
| Less than
| frame.len < 128
|-
| ge
| 
| >=
| Greater than or equal to
| frame.len ge 0x100
|-
| le
| 
| <=
| Less than or equal to
| frame.len <= 0x20
|-
| contains
| 
| 
| Protocol, field or slice contains a value
| sip.To contains "a1762"
|-
| matches
| 
| ~
| Protocol or text field matches a Perl-compatible regular expression
| <nowiki>http.host matches "acme\\.(org|com|net)"</nowiki>
|}

{{了解更多
|[https://www.wireshark.org/docs/wsug_html_chunked/ChWorkBuildDisplayFilterSection.html#_comparing_values Wireshark 文档：比较值]
}}
===逻辑运算符===
使用逻辑运算符可以将过滤器进行组合。
{| class="wikitable" 
|-
! 名称
! 运算符
! 描述
! 示例
|-
| and
| &&
| Logical AND
| ip.src==10.0.0.5 and tcp.flags.fin
|-
| or
| <nowiki>||</nowiki>
| Logical OR
| ip.src==10.0.0.5 or ip.src==192.1.1.1
|-
| xor
| ^^
| Logical XOR
| tr.dst[0:3] == 0.6.29 xor tr.src[0:3] == 0.6.29
|-
| not
| !
| Logical NOT
| not llc
|-
| […]
| 
| Subsequence
| eth.src[0:3] == 00:00:83
|-
| in
| 
| Set Membership
| http.request.method in {"HEAD", "GET"}
|}
{{了解更多
|[https://www.wireshark.org/docs/wsug_html_chunked/ChWorkBuildDisplayFilterSection.html#_combining_expressions Wireshark 文档：组合表达式]
|
}}

===函数===
{| class="wikitable" 
|-
! 函数
! 描述
! 示例
|-
| upper
| 转化为大写字母
| 
|-
| lower
| 转化为小写字母
| <code>lower(http.server) contains "apache"</code>
|-
| len
| Returns the byte length of a string or bytes field.
| 
|-
| count
| Returns the number of field occurrences in a frame.
| <code>count(ip.addr) > 2</code>
|-
| string
| Converts a non-string field to a string.
| 
|-
| max
| Return the maximum value for the arguments.
| 
|-
| min
| Return the minimum value for the arguments.
| 
|-
| abs
| Return the absolute value for the argument.
| 
|}
{{了解更多
|[https://www.wireshark.org/docs/wsug_html_chunked/ChWorkBuildDisplayFilterSection.html#_functions Wireshark 文档：函数]
}}

==资源==
===官网===
*Wireshark 官网：https://www.wireshark.org/
*Wireshark 文档：https://www.wireshark.org/docs/wsug_html_chunked/
*Wireshark 文档（单页版）：https://www.wireshark.org/docs/wsug_html/
*Wireshark 源代码：https://gitlab.com/wireshark/wireshark
*Wireshark Wiki：https://gitlab.com/wireshark/wireshark/-/wikis/home
*Wireshark Wiki：https://wiki.wireshark.org/

===网站===

[[分类:网络]]