GitHub - ljianhui/NetworkSniffer: This is a network sniffer program, such as tcpdump.

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This is a network sniffer program, such as tcpdump.

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Name		Name	Last commit message	Last commit date
Latest commit History 18 Commits
Gui		Gui
.gitignore		.gitignore
README		README
analysis.cpp		analysis.cpp
analysis.h		analysis.h
analysistree.cpp		analysistree.cpp
analysistree.h		analysistree.h
arpanalysis.cpp		arpanalysis.cpp
arpanalysis.h		arpanalysis.h
ethernetanalysis.cpp		ethernetanalysis.cpp
ethernetanalysis.h		ethernetanalysis.h
icmpanalysis.cpp		icmpanalysis.cpp
icmpanalysis.h		icmpanalysis.h
ipanalysis.cpp		ipanalysis.cpp
ipanalysis.h		ipanalysis.h
main.cpp		main.cpp
makefile		makefile
rawsocket.cpp		rawsocket.cpp
rawsocket.h		rawsocket.h
tcpanalysis.cpp		tcpanalysis.cpp
tcpanalysis.h		tcpanalysis.h
typedef.h		typedef.h
udpanalysis.cpp		udpanalysis.cpp
udpanalysis.h		udpanalysis.h

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This is a network sniffer program, such as tcpdump.

Program name: netsniffer

Development environment:
	linux 2.6.32 + g++ 4.4.7 + raw socket 


Class view:
	Analysis
	   |
	   |------EthernetAnalysis
	   |
	   |------ArpAnalysis
	   |
	   |------IpAnalysis
	   |
	   |------TcpAnalysis
	   |
	   |------UdpAnalysis
	   |
	   |------IcmpAnalysis

	RowSocket
	AnaylsisTree

Protocol Analysis tree:

	EthernetAnalysis
		/\
	       /  \
	      /	   \
	     /	    \
	    /	     \
       ArpAnalysis  IpAnalysis
			/|\
		       / | \
		      /  |  \
		     /   |   \
		    /    |    \
		   /     |     \
		  /      |      \
		 /       |       \
		/        |        \
       IcmpAnalysis TcpAnalysis  UdpAnalysis  

Core design thinking:
	Composite patterns
		
help:
	-i(interface) : the name of network interface, such as -i eth0, catch the packet of eth0

	-p(protocol) : set protocol filter, such as -p tcp, view the tcp packet

	-g(Gui) : use the gui view, ps: the app ./netsniffer and ./NetSnifferGui must in the same dir