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106 lines
4.4 KiB
Plaintext
106 lines
4.4 KiB
Plaintext
@(#) $Id: INSTALL,v 1.13 2000/11/23 20:07:29 leres Exp $ (LBL)
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Traceroute is known to build and run under SunOS 4.1.4 and Solaris 5.4.
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If you are running a really old kernel, see the instructions under the
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title "KERNEL MODIFICATIONS" further down.
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To build traceroute, first customize any paths in Makefile.in, then run
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"./configure" (a shell script). The configure script will determine
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your system attributes and generate an appropriate Makefile from
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Makefile.in. Next run "make". If everything goes well you can su to
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root and run "make install" and "make install-man". Note that traceroute
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must be installed setuid to root or run as root.
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If configure fails for some reason and decide to submit a bug report to
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traceroute@ee.lbl.gov, please include a copy of config.log.
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You will need an ANSI C compiler to build libpcap. The configure script
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will abort if your compiler is not ANSI compliant. If this happens, use
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the GNU C compiler, available via anonymous ftp:
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ftp://prep.ai.mit.edu/pub/gnu/gcc-*.tar.gz
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If you get the error message:
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traceroute: unknown protocol icmp
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it usually means you're missing the icmp line in /etc/protocols.
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If you are using Solaris 2.5.1 (and possibly higher), traceroute cannot
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calculate checksums; configure automatically changes the default to
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reflect this. The kernel updates the ip_id field with some unknown
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value and the ip_off field with the IP_DF bit. Also, if the the udp
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uh_sum field is non-zero, it gets updated with the value of the uh_ulen
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field... This means that the icmp echo option (-I flag) is not as
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useful.
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KERNEL MODIFICATIONS
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--------------------
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If yor have a really old system, it may be necessary to modify your
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kernel before traceroute will work. If you want to hack on your kernel,
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a modified version of the routine rip_output (normally found in the
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file /sys/netinet/raw_ip.c) can be found in rip_output.c. This code may
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or may not resemble the code in your kernel. It may offer you a place
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to start but we make no promises. If you do hack your kernel, remember
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to test everything that uses raw ip sockets (e.g., ping and
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egpup/gated) & make sure they still work. We wish you the best of luck
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and you're on your own.
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Some older kernels forward icmp packets that have a ttl of zero. If
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your system has this bug, you might want to fix it while you're in the
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kernel. (This bug appears in all releases of BSD up to but not
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including 4.3tahoe. If your version of netinet/ip_icmp.c is any earlier
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than 7.3 (April, '87), it has the bug.) The fix is just to add the
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line:
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ip->ip_ttl = MAXTTL;
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after the line:
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ip->ip_src = t;
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(or anywhere before the call to icmp_send) in routine icmp_reflect.
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If you're running this on a pre-4.3bsd system (e.g., SunOS 3) that
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strips ip headers from icmp messages, add -DARCHAIC to CFLAGS in the
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Makefile. Also note that rip_output contains a conditional for a
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4.2/4.3 change in the location of a raw socket's protocol number. I've
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checked this under 4.3 & SunOS 3 but you should double-check your
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system to make sure the appropriate branch of the #if is taken (check
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the line that assigned to ip->ip_p in your system's original
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rip_output).
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FILES
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-----
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CHANGES - description of differences between releases
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FILES - list of files exported as part of the distribution
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INSTALL - this file
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Makefile.in - compilation rules (input to the configure script)
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README - description of distribution
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VERSION - version of this release
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aclocal.m4 - autoconf macros
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config.guess - autoconf support
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config.sub - autoconf support
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configure - configure script (run this first)
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configure.in - configure script source
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findsaddr-generic.c - generic source address code
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findsaddr-linux.c - linux source address code
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findsaddr-socket.c - socket based soruce address code
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findsaddr.h - source address prototypes
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ifaddrlist.c - inet address routines
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ifaddrlist.h - inet address prototypes
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install-sh - BSD style install script
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lbl/gnuc.h - gcc macros and defines
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lbl/os-*.h - os dependent defines and prototypes
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linux-include/* - network include files missing on Linux
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mean.awk - awk script to print out the mean time along a route
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median.awk - awk script to print out the median time along a route
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mkdep - construct Makefile dependency list
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rip_output.c - sample rip_output() from /sys/netinet/raw_ip.c
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strerror.c - emulation routine
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traceroute.8 - manual entry
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traceroute.c - main program
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traceroute.h - global prototypes
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usleep.c - missing system call emulation
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