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enderunix
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Knowlan
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‎COPYING

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‎ChangeLog

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-----------------------------------------------------
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EnderUnix Knowlan - 0.1.1
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Halil Demirezen <[email protected]
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-----------------------------------------------------
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Sat, 10-01-2004 01:45:24 - Halil Demirezen <[email protected]>
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Package: knowlan, Version: 0.1.1
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* Pipeable output provided.
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Fri, 19-09-2003 14:53:00 - Halil Demirezen <[email protected]>
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Package: knowlan, Version: 0.1
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* Initial Release
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‎INSTALL

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-----------------------------------------------------
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EnderUnix Knowlan - 0.1
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Halil Demirezen <[email protected]
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-----------------------------------------------------
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Depending on being initial, knowlan can easily be
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installed. First of all,
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./configure
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Then,
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make, make install
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so knowlan is at your service.
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Not to get boring errors, check your libpcap-dev and
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libnet-dev to be installed correctly.
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‎README

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-----------------------------------------------------
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EnderUnix Knowlan - 0.1
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Halil Demirezen <[email protected]
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-----------------------------------------------------
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Knowlan is ARP protocol based Local Area Network IP and
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MAC Adress Extractor. Knowlan uses libpcap and libnet
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libraries for to be simple to handle and to have a simple
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code for any interestor to deal with the code. Pre-Stable
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Versions of Knowlan did not use libpcap and libnet
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libraries. It used pure link layer system calls to get
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settings and generate ARP PACKETs for sending and handling.
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However, everything is not so simple. For portability,
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It has been found more efficient that if we use a well
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known and portable library, we can solve portability problem.
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So, It is decided on to use libpcap and libnet libraries
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for sending and handling ARP packets and decide on them
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what to do.
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As you have already dealt with the program, It has two processess.
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One, child enters in a infinite loop for recieving ARP
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REPLY packets and then printing IP and MAC Addresses as it
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gets packet from the interface. The second process, our parent,
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get a number of maximum possible host in the LAN using netmask.
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So, then, it starts sending ARP REQUEST packets to the whole
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LAN, every ip, not knowing whether the ip address it sends
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the ARP REQUEST packet is up or not.
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Arter sending packets to whole LAN, it waits an extra 100msecs.
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for any late host to answer ARP REQUEST. So, after 100msecs
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passed, the send_arp_packet(interface) returns and that process
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then sends SIGKILL to the child to inform that there will
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be no other machine to reply. So the child quits. The IP and
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MAC addresses associated with them are all active machines
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on the LAN. Have fun with them!
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For installation please READ INSTALL.
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‎TODO

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-----------------------------------------------------
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EnderUnix Knowlan - 0.1
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Halil Demirezen <[email protected]
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-----------------------------------------------------
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TODO for closest terms.
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* Portability will be completed for *BSD platforms fully.
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* Portability for SUN Solaris platforms
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* MAC Address Vendors.
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* Hostnames
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‎configure

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#!/bin/sh
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# Let,s chect environment. For instance what we are on
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OS=`uname -s`
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MAC=`uname -m`
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RELEASE=`uname -r`
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# Whoarewe ? :)
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ME=`whoami`
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echo -n "Operating System Type: "
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if test "$OS" = Linux; then
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echo "Linux"
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elif test "$OS" = FreeBSD; then
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echo "FreeBSD"
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elif test "$OS" = OpenBSD; then
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echo "OpenBSD"
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elif test "$OS" = NetBSD; then
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echo "NetBSD"
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fi
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echo -n "testing /usr/include/stdio.h..."
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if(test -f /usr/include/stdio.h); then
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echo "ok"
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else
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exit
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fi
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echo -n "testing /usr/include/stdlib.h..."
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if(test -f /usr/include/stdlib.h); then
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echo "ok"
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else
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exit
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fi
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echo -n "testing /usr/include/errno.h..."
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if(test -f /usr/include/errno.h); then
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echo "ok"
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else
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echo "no"
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fi
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if test "$OS" = Linux; then
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echo -n "testing /usr/include/pcap.h..."
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if(test -f /usr/include/pcap.h); then
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echo "ok"
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else
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exit
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fi
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fi
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echo -n "testing /usr/include/sys/socket.h..."
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if(test -f /usr/include/sys/socket.h); then
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echo "ok"
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else
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exit;
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fi
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echo -n "testing /usr/include/netinet/in.h..."
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if(test -f /usr/include/netinet/in.h); then
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echo "ok"
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else
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exit;
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fi
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echo -n "testing /usr/include/arpa/inet.h..."
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if(test -f /usr/include/arpa/inet.h); then
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echo "ok"
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else
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exit
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fi
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echo -n "testing /usr/include/netinet/if_ether.h..."
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if(test -f /usr/include/netinet/if_ether.h); then
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echo "ok"
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else
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exit
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fi
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if test "$OS" = Linux; then
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echo -n "testing /usr/include/libnet.h..."
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if(test -f /usr/include/libnet.h); then
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echo "ok"
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else
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exit
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fi
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elif test "$OS" = FreeBSD || test "$OS" = OpenBSD || test "$OS" = NetBSD; then
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echo -n "testing /usr/local/include/libnet.h..."
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if(test -f /usr/local/include/libnet.h); then
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echo "ok"
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else
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exit
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fi
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fi
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if test "$OS" = FreeBSD || test "$OS" = OpenBSD || test "$OS" = NetBSD; then
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echo -n "testing /usr/local/lib/libnet.a..."
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if(test -f /usr/local/lib/libnet.a); then
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echo "ok"
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else
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echo "can't find required libnet.a static library"
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exit
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fi
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fi
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if test "$OS" = Linux; then
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echo -n "testing /usr/lib/libnet.a..."
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if(test -f /usr/lib/libnet.a); then
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echo "ok"
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else
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echo "can't find required libnet.a static library"
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exit
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fi
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fi
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if test "$OS" = Linux; then
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echo -n "testing /usr/lib/libpcap.a..."
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if(test -f /usr/lib/libpcap.a); then
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echo "ok"
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else
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echo "can't find required libpcap.a static library"
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exit
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fi
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fi
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echo -n "Writing MakeFile..."
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echo "#!/usr/bin/make -f" > Makefile
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echo "LIBNETDEFS = `libnet-config --defines`" >> Makefile
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echo "LIBNETLIB = `libnet-config --libs`" >> Makefile
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echo " " >> Makefile
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echo " " >> Makefile
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echo "all: kn_arp.c kn_main.c kn_defs.h" >> Makefile
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echo " gcc -Wall -c kn_main.c" >> Makefile
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if test "$OS" = Linux; then
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echo " gcc -Wall \$(LIBNETDEFS) -c kn_arp.c" >> Makefile
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echo " gcc -o knowlan kn_main.o kn_arp.o -lnet -lpcap" >> Makefile
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echo " " >> Makefile
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echo " " >> Makefile
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echo "install: knowlan" >> Makefile
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echo " /bin/cp knowlan /usr/sbin/knowlan" >> Makefile
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echo " /bin/chown root.root /usr/sbin/knowlan" >> Makefile
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echo " /bin/chmod 755 /usr/sbin/knowlan" >> Makefile
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elif test "$OS" = FreeBSD || test "$OS" = OpenBSD || test "$OS" = NetBSD; then
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echo " gcc -Wall -D__BSD__=1 -D__GLIBC__=1 -I/usr/local/include/ \$(LIBNETDEFS) -c kn_arp.c" >> Makefile
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echo " gcc -o knowlan kn_main.o kn_arp.o /usr/local/lib/libnet.a -lpcap" >> Makefile
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echo " " >> Makefile
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echo " " >> Makefile
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echo "install: knowlan" >> Makefile
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echo " /bin/cp knowlan /usr/sbin/knowlan" >> Makefile
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echo " /bin/chown root.root /usr/sbin/knowlan" >> Makefile
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echo " /bin/chmod 755 /usr/sbin/knowlan" >> Makefile
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fi
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echo "clean:" >> Makefile
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echo " find ./ -name \"*.o\" -exec rm -rf {} \;" >> Makefile
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echo " find ./ -name \"knowlan\" -exec rm -rf {} \;" >> Makefile
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echo " find ./ -name \"*core\" -exec rm -rf {} \;" >> Makefile
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echo "Done."
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