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Bug #1598

SHL4 C3 FEP2.1win 3控4CCTV通道会出现socketListen数据链路ESTABLISHED残留-导致再也不能接受3#线的链路请求-zfCascoCctv.cpp协议处理漏洞

Added by yufeng wu over 3 years ago. Updated over 3 years ago.

Status:
Resolved
Priority:
High
Assignee:
yufeng wu
Start date:
08/30/2021
Due date:
08/30/2021
% Done:

0%

Estimated time:

Description

SHL4 C3 FEP2.1win
RTU23采用zfCctvCasco协议，通道开启520端口Listen服务
卡斯柯以客户端方式请求链接，与我FEP进行通讯
当卡斯柯方在正常通讯时，突然禁用网卡，也就是我FEP不能收到socket的FIN结束命令时，
我FEP主机netstat显示任然ESTABLISHED链接残留，协议已长时间未收到数据，也没有通知em_daq关闭socket重启Listen

Files

zfCascoCctv.cpp (8.98 KB) zfCascoCctv.cpp yufeng wu, 08/31/2021 08:53 AM
zfCctvCasco.dll (112 KB) zfCctvCasco.dll yufeng wu, 08/31/2021 08:55 AM

History

#1

Updated by yufeng wu over 3 years ago

  • File zfCascoCctv.cpp zfCascoCctv.cpp added
  • Subject changed from SHL4 C3 FEP2.1win 3控4CCTV通道会出现socketListen数据链路ESTABLISHED残留-导致再也不能接受3#线的链路请求 to SHL4 C3 FEP2.1win 3控4CCTV通道会出现socketListen数据链路ESTABLISHED残留-导致再也不能接受3#线的链路请求-zfCascoCctv.cpp协议处理漏洞
  • Status changed from New to Resolved

临时增加长时间无数据接收，上报em_daq链路超时标志
rtu默认设置，3次超时，迫使端口listen释放重建

#3

Updated by yufeng wu over 3 years ago

现场临时更新投用
与卡斯柯测试验证ok

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