#一个简单 tcp 代理服务
##用途 这个小工具主要是用来调试 pos: (当然也可以其他)
##场景: pos 冲正测试, 需要模拟网络超时 查看 pos 机发送的原始报文(16进制)
正对上述两种测试场景, 我们公司研发/测试部门的同事门, 采用的是如下方式:
掐算好时间, 拔掉电池
用网卡抓包的方式
以上, 粗鲁的 方式确实能解决问题. 但是非常不方便.
##使用 这个小工具使用非常简单.
[appuser@pos-dev ~]$ tcpproxy
tcpproxy v1.0.2 @author yinheli
Usage of tcpproxy:
-debug
print debug message
-format hex
debug output format, hex or `string` (default "hex")
-port string
listen port, default 1234 (default "1234")
-sleep int
every transfer with sleep second(s)
-sleepLoc string
sleep position, before: before send to backend server; after: after receive data from backend; both: all (default "after")
-target string
target host and port. eg: 192.168.1.100:9001
-timeout int
timeout (second), default 60s (default 60)update to
v1.0.2add format option
一个 pos 签到的例子, 如果要测试超时, 可以添加 sleep 参数即可, 然后在收到后端 posp 的响应后 ctrl + c 关掉代理, 不给 pos 响应.
[appuser@pos-dev ~]$ tcpproxy -port=52100 -target=192.168.1.52:4007 -debug=true
tcpproxy v1.0.1 @author yinheli
**********
2014/08/01 20:27:42 start proxy: listen:52100, target:192.168.1.52:4007, timeout:60, debug:true, sleep:0, sleepLoc:after
2014/08/01 20:27:48 start: 117.136.0.61:37307 <-> 192.168.1.52:4007
2014/08/01 20:27:48 send: 117.136.0.61:37307 <-> 192.168.1.52:4007, time:319ms
00000000 00 da 60 00 06 00 00 60 31 00 31 10 03 08 00 00 |..`....`1.1.....|
00000010 20 00 00 00 c0 00 d6 00 04 63 33 30 30 30 38 37 | ........c300087|
00000020 38 38 5a 30 33 30 30 30 30 30 30 30 30 38 31 36 |88Z0300000000816|
00000030 35 00 09 56 31 2e 34 7c 56 31 2e 34 01 18 34 36 |5..V1.4|V1.4..46|
00000040 30 2c 30 30 2c 31 31 33 42 2c 35 36 32 46 2c 34 |0,00,113B,562F,4|
00000050 36 30 2c 30 30 2c 31 30 32 43 2c 32 37 46 45 2c |60,00,102C,27FE,|
00000060 34 36 30 2c 30 30 2c 31 30 32 43 2c 32 37 46 44 |460,00,102C,27FD|
00000070 2c 34 36 30 2c 30 30 2c 31 30 32 43 2c 30 30 30 |,460,00,102C,000|
00000080 30 2c 34 36 30 2c 30 30 2c 31 30 32 43 2c 42 32 |0,460,00,102C,B2|
00000090 34 37 2c 34 36 30 2c 30 30 2c 31 31 33 42 2c 32 |47,460,00,113B,2|
000000a0 41 43 32 2c 34 36 30 2c 30 30 2c 30 30 30 30 2c |AC2,460,00,0000,|
000000b0 30 30 30 30 00 11 00 00 00 02 00 10 00 25 53 65 |0000.........%Se|
000000c0 71 75 65 6e 63 65 20 4e 6f 31 32 33 31 31 36 30 |quence No1231160|
000000d0 32 30 38 34 35 31 37 00 03 30 31 20 |2084517..01 |
2014/08/01 20:27:48 recive: 192.168.1.52:4007 <-> 117.136.0.61:37307, time:361ms
00000000 00 d3 60 00 00 00 06 60 31 00 31 10 03 08 10 00 |..`....`1.1.....|
00000010 38 00 00 02 c1 00 16 00 04 63 20 27 48 08 01 30 |8........c 'H..0|
00000020 30 33 30 30 30 38 37 38 38 5a 30 33 30 30 30 30 |030008788Z030000|
00000030 30 30 30 30 38 31 36 35 01 16 43 30 31 35 5a 30 |00008165..C015Z0|
00000040 33 30 30 30 30 30 30 30 30 38 31 36 35 43 31 30 |3000000008165C10|
00000050 38 d6 d0 2a 2a 2a 2a 2a 2a 43 32 31 30 46 46 46 |8..******C210FFF|
00000060 46 46 46 46 46 46 46 43 33 30 33 30 30 30 43 34 |FFFFFFFC303000C4|
00000070 30 31 31 43 35 30 31 31 43 36 30 32 31 31 43 37 |011C5011C60211C7|
00000080 31 39 cb e6 d0 e8 b6 f8 d6 c1 20 2d 20 ca d5 b8 |19........ - ...|
00000090 b6 d7 d4 c8 e7 43 38 31 35 30 32 32 20 2d 20 32 |.....C815022 - 2|
000000a0 36 32 38 20 33 33 36 36 43 39 30 32 31 31 00 11 |628 3366C90211..|
000000b0 00 00 00 02 00 10 00 24 c4 f5 17 ac 93 4e 2f 71 |.......$.....N/q|
000000c0 c3 6c 53 05 0e 31 d0 9b 5c e1 04 99 9b 60 9f 4d |.lS..1..\....`.M|
000000d0 00 03 30 31 20 |..01 |
2014/08/01 20:27:49 end: 117.136.0.61:37307 <-> 192.168.1.52:4007, time:819ms
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##最后希望这个工具也能帮到你.
如果你懒的手动编译, 我这里在 centos 64 位下编译了一个版本. 下载地址: http://pan.baidu.com/s/1o6wRCpG