CAP FAQ ------- Last update: Mon Aug 3 02:10:07 EST 1992 > What is CAP ? The Columbia AppleTalk Package (CAP) implements the AppleTalk protocol stack on a variety of UNIX machines. The main applications provide an AppleShare 2.0 compatible server (aufs), a LaserWriter Spooler (lwsrv) and a program to print to LaserWriters (papif). The latter can be used to talk to EtherTalk LaserWriters, LocalTalk LaserWriters used on Dayna EtherPrint cards or on a LocalTalk/EtherTalk gateway. There are also a number of contributed packages bundled with CAP (see cap60/contrib). > What extra hardware is required for CAP ? On a SUN or ULTRIX machine, CAP can speak Phase 1 or Phase 2 EtherTalk packets using packet filters based on the Stanford ENET model. Where available, CAP can also use Kernel based AppleTalk or run the UNIX AppleTalk Bridge (UAB) to act as a gateway. On other UNIX boxes you need to have a gateway that can translate IPTalk packets. Suitable candidates are Shiva FastPath, Cayman GatorBox or Webster MultiPort Gateway. > What machines will CAP run on ? The CAP Configure script has specific support for the following Operating Systems: sunos - SUN SunOS ultrixnn - DEC Ultrix 1.2, 2.0, 4.N irix - Silicon Graphics IRIS/IRIX aix - IBM AIX System V hpux - HP HP-UX 8.0 uts - Amdahl UTS aux - Apple A/UX 2.0 encore - Encore MultiMax BSD pyr - Pyramid (BSD Universe) next - NeXT/MACH dynix - Sequent Balance newsos - Sony NEWS bsd - BSD 4.2, 4.3 > What is the current CAP version ? CAP is at version 6.0 with (currently) 125 patches to be applied, most of which add extra functionality to the original. To determine the current patch level of your sources, check the cap60/README file for a line of the form o CAP Distribution 6.0, Patch Level 125, July 1992 > Where can I get CAP ? CAP can be obtained by anonymous FTP from rutgers.EDU src/{cap60.tar.Z,cap60.patches/*} munnari.OZ.AU mac/{cap60.tar.Z,cap.patches/*} gatekeeper.DEC.COM pub/net/appletalk/cap/{cap60.tar.Z,cap.patches/*} ftp.kuis.kyoto-u.AC.JP net/cap/{cap60.tar.Z,cap60.patches/*.Z} src.doc.ic.AC.UK mac/multigate/{cap60.tar.Z,cap.patches/*} Please choose an appropriate site and an off-peak time for the transfer. The patches are available individually or as the files "patches.1-75.tar.Z", "patches.76-100.tar.Z" and "patches.101-125.tar.Z". Additionally, for new users, a partially patched source file is available as "cap60.pl100.tar.Z" (the file cap60.tar.Z is unpatched). > How do I apply the patches ? To make the process of patching easier, you should get the 'patch' utility written by Larry Wall, it is normally archived at sites that archive comp.sources.unix in volume7/patch2. If you can't find anywhere closer it is on munnari.OZ.AU. CAP Version 6.1 will be 6.0 with all the patches applied and updated cap60/contrib packages. It will appear when the number of patches stabilizes. For each of the patches, run 'patch -p < cap60.patch0NN' from the top level cap60 directory, for example, in csh foreach i (cap60.patches/cap60.patch*) patch -p < $i >>& /tmp/patches end and check the /tmp/patches file for patching errors (should be none). To remove the *.orig files that patch leaves behind (containing the original version of the file), run 'make spotless' from the top level directory (note that spotless also removes all makefiles so gen.makes needs to be run to regenerate them). > I picked up CAP 6.0 from rutgers.edu, but our Unix system administrator > refuses to install it because there are 74 patches (can't say I blame him)! Sigh. Using the patch program to apply patches requires a minimal amount of time and energy. Taking time to install the patch program will pay off for CAP and other program updates. % date Sat Mar 7 23:51:05 EST 1992 % touch /tmp/patches % foreach i (cap60.patches/cap60.patch*) ? patch -p < $i >>& /tmp/patches ? end % grep rej /tmp/patches % date Sat Mar 7 23:54:26 EST 1992 It took just 3:11 to apply 75 patches to the raw CAP tar source. The extra overhead is the time to FTP 3 files, cap60.tar.Z, patches.1-74.tar.Z and cap60.patch075 and uncompress them. The total time spent on this ... 8:02. > Is CAP Public Domain ? No, CAP is distributed with the following condition on its use: Copyright (c) 1986, 1987, 1988, The Trustees of Columbia University in the City of New York. Charlie C. Kim, User Services Group, Academic Information Services Division, Libraries and Center for Computing Activities and Bill Schilit, formerly of Computer Research Facilities, Computer Science Department. Permission is granted to any individual or institution to use, copy, or redistribute this software so long as it is not sold for profit, provided that this notice and the original copyright notices are retained. Columbia University makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. Some portions of CAP have other copyrights and are suitably marked. > Is there a version of CAP available that supports Ethertalk Phase 2 ? Phase 2 support was added in CAP 6.0 patches 25, 28 & 35 for SUN NIT, ULTRIX 4.n and SUN enet driver respectively. > Can a workstation with 2 ethernet cards running Cap s/w act as a phaseII > to (phaseI or phaseII) "Gateway"? If so, what patch level of Cap do I need > to do this? The UNIX AppleTalk Bridge (UAB) is the EtherTalk gateway. It can handle multiple ethernet interfaces and gateway between them. This is its primary function but it can also be set up to provide CAP services. But ... > Does anyone have a patch that will support the phase 2 appletalk protocol > on UAB (CAP6.0). UAB is *currently* Phase 1 only. > Is there any standard way yet of implementing a execute only, copy > protected CAP AUFS server? The original method of achieving this was to removing read permission from the data fork of the Application (make it non-zero length if the file is empty). The current method involves using the Application Manager added in patch number 61. Either of these methods can be circumvented by users who are either knowledgeable or determined. > Recently I introduced a new color postscript printer, Tektronix Phaser III > 4698PXi, under one of the LocalTalks. It works fine from Macintosh's so I > tried to use it from papif but failed. CAP uses DDP checksums by default, the checksum code in the Phaser III PXi and the Apple Personal LaserWriter NTR incorrectly calculate the checksum value and the packet is dropped. The programs aufs, lwsrv, papif, atis, atlooklws and tlw now support the -k option to disable CAP checksums on a per-program basis. To disable CAP checksums completely, add the following lines to the m4.features file, rerun gen.makes and remake CAP. # + DONT_DOCHKSUM no DDP checksums (Tektronix Phaser III PXi & Apple LW NTR) define(`specialcflags',concat(specialcflags,` -DDONT_DOCHKSUM')) # No other code changes are necessary. > We've just upgraded our DECstations to version 4.2 of ULTRIX, and our CAP > distribution very neatly broke. You need to obtain the net_common.o and pfilt.o patches from DEC. Do not turn on the ifconfig copyall (stop-gap measure previously suggested on the net). Do not define ULT42PFBUG in m4.features. > When we run aarpd with a command like: > aarpd pf0 our_zone > the daemon doesn't start & we get the message 'failed to start ZIS listener'. This means that something has been allocated the UPD port 774 (768+6) by 'portmap'. You can check this with the command 'rpcinfo -p'. There are two solutions, break 'start-cap-servers' into two so that aarpd and atis is started before portmap. Alternatively, and preferably, install the NIC assigned port numbers into /etc/services. See the doc in the file cap60/doc/install.ms for more details. > I have installed the enet driver. But aarpd won't start successfully. > Instead the following error message is being printed. > unix!: # aarpd le0 EtherTalk > open: /dev/enetXX: No such file or directory The ENET drivers use devices of the form enet0, enet1 etc. Replace the string "le0" with "enet0". For more information, see the CAP60.README file in the CAP distribution. Send CAP FAQ contributions to cap@munnari.OZ.AU