an ip filter source code c works can be seen as a simple firewall, and I hope to be helpful

ip过滤源代码
............\DrvFltIp_FirewallFHK
............\....................\DrvFltIp_source
............\....................\...............\Debug
............\....................\...............\DrvFltIp.c
............\....................\...............\DrvFltIp.dsp
............\....................\...............\DrvFltIp.dsw
............\....................\...............\DrvFltIp.h
............\....................\...............\DrvFltIp.ncb
............\....................\...............\DrvFltIp.opt
............\....................\...............\DrvFltIp.plg
............\....................\...............\DrvFltIp.stc
............\....................\...............\DrvFltIp.sys
............\....................\...............\makefile
............\....................\...............\sources
............\....................\...............\testDrv
............\....................\...............\.......\res

............\....................\...............\.......\...\testDrv.rc2
............\....................\...............\.......\resource.h
............\....................\...............\.......\sockUtil.cpp
............\....................\...............\.......\sockutil.h
............\....................\...............\.......\StdAfx.cpp
............\....................\...............\.......\StdAfx.h
............\....................\...............\.......\TDriver.cpp
............\....................\...............\.......\TDriver.h
............\....................\...............\.......\testDrv.cpp
............\....................\...............\.......\testDrv.dsp
............\....................\...............\.......\testDrv.h
............\....................\...............\.......\testDrv.rc
............\....................\...............\.......\testDrv.stc
............\....................\...............\.......\testDrvDlg.cpp
............\....................\...............\.......\testDrvDlg.h
............\....................\...............\testDrv.exe
............\....................\DrvFltIp_source.zip
............\....................\FirewallFHK_src
............\....................\...............\Debug
............\....................\...............\DrvFltIp.h
............\....................\...............\DrvFltIp.sys
............\....................\...............\Firewall.exe
............\....................\...............\FirewallApp.clw
............\....................\...............\FirewallApp.cpp
............\....................\...............\FirewallApp.dsp
............\....................\...............\FirewallApp.dsw
............\....................\...............\FirewallApp.h
............\....................\...............\FirewallApp.ncb
............\....................\...............\FirewallApp.opt
............\....................\...............\FirewallApp.plg
............\....................\...............\FirewallApp.rc
............\....................\...............\FirewallAppDoc.cpp
............\....................\...............\FirewallAppDoc.h
............\....................\...............\FirewallAppView.cpp
............\....................\...............\FirewallAppView.h
............\....................\...............\MainFrm.cpp
............\....................\...............\MainFrm.h
............\....................\...............\res

............\....................\...............\...\FirewallApp.rc2



............\....................\...............\resource.h
............\....................\...............\RuleDlg.cpp
............\....................\...............\RuleDlg.h
............\....................\...............\rules.h
............\....................\...............\sockUtil.cpp
............\....................\...............\sockutil.h
............\....................\...............\StdAfx.cpp
............\....................\...............\StdAfx.h
............\....................\...............\TDriver.cpp
............\..........

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