Linux-Development-Sys Digest #110, Volume #7 Thu, 26 Aug 99 00:14:20 EDT
Contents:
Re: strcmp in kernel (Peter Samuelson)
firewire -> VXI (Stephen Gibson)
Re: what about SGI's xfs? (Christopher Browne)
tomsrtbt 1.7.140 with kernel 2.0.37, many fixes (Thomas A. Oehser)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Peter Samuelson)
Subject: Re: strcmp in kernel
Date: 25 Aug 1999 21:25:36 -0500
Reply-To: Peter Samuelson <[EMAIL PROTECTED]>
[[EMAIL PROTECTED]]
> > I can't use strcmp in my device driver even if i include
> > <linux/string.h>. The compiler says implicit declaratiion of
> > function.
> > How do i use strcmp a device driver?
[Peter Pointner <[EMAIL PROTECTED]>]
> strcmp might be defined as inline function. Use at least gcc -O when
> compiling your driver to make the inline functions work.
Yes, you do need -O or -O2 due to inlines, but if that were the problem
it wouldn't show up until link time (i.e. insmod time), I believe.
My theory is that you're not using the right kernel header files. You
need to use "-I/usr/src/linux/include" or wherever your kernel source
tree resides. Once upon a time you could omit that flag because
/usr/include had symlinks for the necessary directories, but if you use
libc6 you may well have real directories there instead, populated by
glibc's version of the kernel headers.
--
Peter Samuelson
<sampo.creighton.edu!psamuels>
------------------------------
Date: Thu, 26 Aug 1999 12:28:55 +1000
From: Stephen Gibson <[EMAIL PROTECTED]>
Subject: firewire -> VXI
Hi, this question is not Linux development specific, but perhaps this
group
could help.
We have recently purchased a HP E8491A firewire to VXI controller,
which links a PC via firewire (IEEE1394) to a VXI crate.
PC VXI rack
+------+
+---------------------------------------------+
|Linux | --- IEEE1394 ----> |HP E8491A ---> Tek
TVS621 |
+------+ | ---> Device
2 |
|
: |
| ---> Device
n |
+---------------------------------------------+
We would like to control the VXI rack with the PC running Linux
(currently RedHat 6.0, kernel 2.2.11).
The Linux firewire interface works fine (thanks Emanuel Pirker +
others).
However, we donot know the HP protocols for controlling the
VXI rack, eg. selecting devices within the rack.
The software supplied with the HP device runs only under win95/NT.
It uses a standard interface control library (SICL), with commands
like:
dev_controller = iopen ("vxi");
dev_1 = iopen ("vxi",24);
other commands are then device specific eg.
iprint (dev_2,"RESET\n");
Does anyone have any ideas as to what character strings need to be
sent down the firewire cable to cause the HP controller to select
a device in the VXI rack?
Thanks for any help,
Steve.
--
Stephen T. Gibson |
UV Physics Unit |
Research School of Physical | Email : [EMAIL PROTECTED]
Sciences and Engineering | URL :
http://rsphysse.anu.edu.au/AMPL/uvphys
Australian National University | Phone : +61 2 6249 2296
Canberra ACT 0200, Australia | FAX : +61 2 6249 0390
------------------------------
From: [EMAIL PROTECTED] (Christopher Browne)
Subject: Re: what about SGI's xfs?
Reply-To: [EMAIL PROTECTED]
Date: Thu, 26 Aug 1999 03:06:02 GMT
On 24 Aug 1999 20:10:06 -0500, Peter Samuelson <[EMAIL PROTECTED]> wrote:
>[Christopher Browne <[EMAIL PROTECTED]>]
>> When the code isn't yet available, and the development team is
>> apparently trying to start thinking about a "freeze" in preparation
>> for 2.4, it seems unlikely for XFS to make it in before 2.5.
>
>Right; apparently the freeze is set to go into effect any day now.
>
>> ACLs may provide the ability to more precisely "tie down" security
>> than is possible with UGO; it is not, however, obvious that there are
>> good usage models available to make them usable.
>
>By "usage models" do you mean management utilities? Those are trivial
>to write and rewrite. Or do you mean things like the semantics of ACL
>inheritance, how to copy them when you copy files, how to back them up,
>etc? *Those* are the thorny issues.
Inheritance is a good one; the overall thinking on how to apply ACLs
to (let's say) a Linux distribution as a whole is the other one.
I'm not thinking so much of the "purely technical" issues here as I am
of the three killer questions:
- What to secure?
- Why it needs to be secured?
- How to most appropriately secure it?
An intelligent use of inheritance will be real crucial to this.
>> I'd argue that it needs to be looked at further, perhaps with a view
>> to a capabilities-based approach, perhaps as was used with TOPS-10
>> with FILDAE, before jumping into implementing anything.
>
>I think (as often) I agree with Linus. For a lot of system development
>issues, a prototype implementation can be the best way to start
>discussing issues. In the present case, however, you may be right
>because ACL's affect enough different subsystems that the patches
>necessary to get the prototype would be nontrivial.
Prototypes are a good thing, I agree. *Nothing* will proceed without
a prototype of some sort.
The problem as I see it is that there are a number of competing
security models, and it's not clear from the present incomplete
perspective which will be preferable once you get to looking at the
wider scope of what impact it has on the installation of a complete
Linux distribution.
The other problem is that a prototype in hand tends to be worth three
or more in the bush; once one alternative gets prototyped, there is
likely to be a fair bit of pressure to pick that approach.
--
"Interfaces keep things tidy, but don't accelerate growth: functions
do." -- Alan Perlis
[EMAIL PROTECTED] <http://www.ntlug.org/~cbbrowne/linuxkernel.html>
------------------------------
From: [EMAIL PROTECTED] (Thomas A. Oehser)
Crossposted-To: comp.os.linux.misc,dc.org.linux-users
Subject: tomsrtbt 1.7.140 with kernel 2.0.37, many fixes
Date: 25 Aug 1999 23:10:25 -0400
I've released a new 2.0.37 based tomsrtbt-1.7.140, .dos.zip and .tar.gz.
It is available from http://metalab.unc.edu/pub/Linux/system.recovery,
and will soon be on all the mirrors which of course should be used.
It is also up at http://www.toms.net/rb/, where there is some other stuff.
It's a boot/root rescue/emergency floppy image with more stuff than can fit.
Bzip2, 1722Mb formatting, and tight compilation options helped jam a lot on.
It is useful for "learn unix on a floppy" as it runs from ramdisk, includes
the man-pages for everything, and behaves in a generally predictable way.
See the FAQ below or at http://www.toms.net/rb for a list of recent
enhancements and fixes. There are *IMPORTANT BUG FIXES IN THIS VERSION*.
LSM, FAQ including feature list, and available add-ons follow:
============================ tomsrtbt=1.7.140.lsm ==========================:
Begin3
Title: tomsrtbt
Version: 1.7.140
Entered-date: 25AUG99
Description: "The most Linux on one floppy." (distribution or panic disk).
1.72MB boot/root rescue/tools diskette for your shirt pockets.
Supports ide, scsi, tape, network adaptors, PCMCIA, much more.
About 100 utility programs and tools for fixing and restoring.
See tomsrtbt.FAQ for a list of stuff that is included. Not a
script, just the diskette image packed up chock full of stuff.
Easy to customize startup and scripts for complete rebuilding.
Also good as learn-unix-on-a-floppy as it has mostly what you
expect- vi, emacs, awk, sed, sh, manpages- loaded on ramdisks.
There is one installer that runs under Linux, another for DOS.
Keywords: rescue recovery emergency floppy panic bootdisk tomsrtbt help
Author: [EMAIL PROTECTED] (Tom Oehser)
Maintained-by: [EMAIL PROTECTED] (Tom Oehser)
Primary-site: www.toms.net /rb
1 kB home.html
Alternate-site: sunsite.unc.edu /pub/Linux/system/recovery
1722 kB tomsrtbt-1.7.140.tar.gz
1722 kB tomsrtbt-1.7.140.dos.zip
Copying-policy: GPL
End
======================== tomsrtbt.FAQ ========================:
Contents:
1) tomsrtbt is
2) Design goals
3) Contents
4) Linux installation
5) DOS installation
6) Customizing
7) Support
8) Tips
9) Copyright
10) ChangeLog
11) ToDo
1) tomsrtbt is
"The most Linux on one floppy disk" for:
rescue recovery panic & emergencies
tools to keep in your shirt pockets
whenever you can't use a hard drive
2) Design goals
as much stuff as possible on 1 floppy disk
keep it self contained, build under itself
try to make it behave like a normal system
rescue and recovery functions get priority
3) Contents
Stuff (modules, manpages, scripts, binaries, kernel):
2.0.37 3c589_cs BusLogic CVF DEC_ELCP EEXPRESS EEXPRESS_PRO
EL2 EL3 EXT2 FAT FAT32 FD IDE IDECD IDEFLOPPY IDEPCMCIA
IDETAPE ISO9660 JOLIET LOOP MATH_EMULATION MINIX MSDOS
NE2000 NFS PROC RAM SD SERIAL SLIP SMC SR TR ULTRA VFAT
VORTEX WD80x3 ah152x_cs aha152x aha1542 aic7xxx ash awk
badblocks bdflush bzip2 cardbus cardmgr cat ce ce.help chattr
chgrp chmod chown chroot clear cmp cp cpio cut date dd ddate
debugfs df dirname dmesg dmsdos ds du dumpe2fs dutil e2fsck
eata echo egrep elvis emacs extend false fdflush fdformat
fdisk fdomain filesize find fmt fsck.ext2 fsck.msdos fstab
grep gzip halt head hexedit hostname i82365 ifconfig ifport
ile init inittab insmod kill killall5 ksyms length less
libc.so.5.4.13 lilo lilo.conf ln loadkeys login losetup ls
lsattr mawk memtest mingetty miterm mkdir mkdosfs mke2fs
mkfifo mkfs.minix mklost+found mknod mkswap mnsed more mount
mt mv nc ncr53c8xx nmclan_cs ntfs pax pcmcia pcmcia_core
pcnet_cs ping plip ppa printf ps pwd qlogic_cs qlogicfas
reboot reset rm rmdir rmmod route rsh rshd script scsi_info
seagate sed serial_cs setserial sh slattach sleep slip snarf
sort split stty swapoff swapon sync tail tar tcic tee telnet
test touch tune2fs umount update vi vi.help wc
Linux package
buildit.s build
clone.s duplicate
fdflush flush floppy cache
fdformat format floppy 1.7M
install.s install
settings.s used by build
tomsrtbt.FAQ documentation
tomsrtbt.raw <== This is it
unpack.s unpack
DOS package
initrd.img installer image
install.bat install it
loadlin.exe starts linux from DOS
tomsrtbt.FAQ documentation
zimage installer kernel
4) Linux installation
a) extract the .tar.gz archive
b) Be root
c) Be in the tomsrtbt-<version> directory
d) Have a blank floppy with no bad sectors
e) Do './install.s'
The script assumes you have ELF and that your 3.5" 1.44M floppy is on fd0.
Virtually all 1.44 drives support 1.722 just fine, but it is possible for
an extended format to break a floppy drive, use tomsrtbt at your own risk.
The install does mknod to make /dev/fd0u1722 if you don't have it already.
If you use libc.so.6 / glibc, you might need something like:
LD_LIBRARY_PATH=/usr/i486-linux-libc5/lib; ./fdformat /dev/fd0u1722
Umount any mounted floppies before installing.
5) DOS installation
a) Pkunzip it
b) If you are running Windows-95, do "shutdown and restart in msdos mode".
You have to be in really-DOS mode. Not a DOS session under Windows-95.
c) CD to the directory you pkunzipped it into.
d) "install".
(This boots a Linux with prompts to make the diskette.)
This is for installing tomsrtbt when you don't already have Linux.
If you have tomsrtbt on a floppy, don't use this, and if
you already have Linux, don't use this, use the .tar.gz.
If you have problems boot with no config.sys or autoexec.bat.
6) Customizing
If you have problems, try doing it under tomsrtbt instead
of on your own system. I test and support it under itself!
To customize startup, edit settings.s and rc.custom.gz on the floppy.
Of course you have to "gzip -d" rc.custom.gz to edit it.
Use /dev/fd0u1722 to mount it, /dev/fd0 or /dev/fd0H1440 will not work.
Typical uses: insmod, ifconfig, route, resolv.conf, hosts, mount, etc.
For full customization, such as, anything,
(Be logged somewhere with 10+ meg of linux filesystem space)
unpack.s # unbuilds it into <name>.unpacked
# do what thou wilt
2/usr/doc/buildit.s # rebuilds out of 1, 2 directories
There is lots of room, delete useless stuff like dmsdos and ce.
NOTE: You need space to DO the customizations. Rc.custom.gz can be
unpacked into /tmp, edited, gzipped, copied back. Buildit.s
needs drive space. If you only have FAT, use the loop device.
When customizing, edit the settings.s under "1/", not other copies.
7) Support
Start at the homepage at http://www.toms.net/rb/
My email address is [EMAIL PROTECTED]
I am not a Unix teacher, questions should be tomsrtbt-specific.
Tell me what problems you have and what you would like added.
8) Tips
'Login as root' means the USER ID is "root"! I thought it was obvious...
Use "man command" if a command acts strangely
"snarf" does ftp, gopher, http, & finger
/ is full. /usr is full. /tmp has room.
tar and cpio are 'pax' and differ from gnu-tar and gnu-cpio.
Instead of:
tar -xvzf /dev/st0
Use this:
gzip -d < /dev/st0 | tar -xvf -
To run programs from your hard drive:
-ELF libc5 stuff should all work.
-For a.out programs, install binfmt_aout.o.
-For glibc6 programs, something like:
ln -s /mnt/lib/ld-linux.so.2 /lib/ld-linux.so.2
edit ld.so.conf then ldconfig or maybe LD_LIBRARY_PATH
or, "chroot <mounted glibc root> bash" then whatever...
Command history is via ile from /bin/login, see "man ile" and /bin/login.
You must use insmod for:
BusLogic aha152x aha1542 aic7xxx dmsdos eata fdomain
ncr53c8xx ntfs plip ppa qlogicfas seagate
Adaptec 2940 etc. is aic7xxx
If something is missing, look in http://www.toms.net/rb/add-ons/.
Try "pcmcia start". If you add pcmcia modules, fix /etc/pcmcia/config also.
To use lilo, mount the floppy to get at zImage & boot.b, chain.b is in etc.
The lilo you run must have the same version as the boot.b it runs against.
wc login man shutdown ps split telnet tee & head are scripts or awks.
edit rc.custom.gz to enable rshd or dialin or 'telnetd'.
For the fake telnetd, use 'mode character' and 'set binary'...
If you need to not be root, use a suid shell. Login won't do it.
Instead of rdev use lilo, for examples see the mailing list archive.
To copy between 2 tomsrtbt systems, use something like:
find <path> | cpio -o | rsh <system> cd <path> ";" cpio -iumd
Support for 4M machines in borderline, see the list archive for help.
I have never used "Red Hat", please do not ask me questions about it.
Ditto: "Mandrake".
9) Copyright
Almost the only originality is arrangement, construction, and scripts.
I did write 'tomshexd' from scratch.
It is all on sunsite.unc.edu, tsx-11.mit.edu, ftp.debian.org, or ftp.lth.se.
I changed:
mnsed fixing 'l'
snarf adding ftp USER and PASS via getenv
busybox taking out applets
ile fixing tty bugs
dd adding lseek for BLK, progress indicator, no conv
The .diffs are in http://www.toms.net/rb/add-ons/*.diff.bz2
'miterm' is thanks to Robert de Bath, [EMAIL PROTECTED]
*******************************************************************************
* If you base something on it, use any of the scripts, distribute binaries or *
* libraries from it, or distribute customized versions of it: You must credit *
* tomsrtbt and include a pointer to http://www.toms.net/rb/ and [EMAIL PROTECTED], *
* and include this notice verbatim. Copyright Tom Oehser 1999. This notice in *
* no way supercedes or nullifies any other protections on the component parts *
* such as the BSD and GPL copyrights which apply to practically everything!!! *
* Within these strictures you may redistribute, incorporate, copy, modify, or *
* do anything else to it or with it that you like. Tomsrtbt has no warranties *
* not even implied fitness or usefulness. If it breaks you keep both pieces. *
*******************************************************************************
10) ChangeLog
1.6.70 add ile shell command history
1.6.151 script fixes, wc tee dirname -> awk
1.6.165 rep gnu fmt w/ elvis' fmt
1.6.167 rm mkdmsdosfs fsck, add ntfs.o, head -> awk
1.6.193 cut -> awk
1.6.200 rm smc-ultra32
1.6.225 script and settings changes, enhance telnet, remove rlogin
1.6.249 add tulip
1.6.268 grep -> awk, add 3c59x
1.6.275 superformat -> fdformat, util2.8, prompt for keytable,
add BusLogic.o (no FlashPoint...), IDEPCMCIA.
1.6.335 fix cpio bugs, BSD mt-st -> gnu-mt, 2.4.2-20 (debian)
1.6.336 fix ile tty handling
1.6.346 pcmcia-3.05, del aha152x_cs, add cardbus
1.6.358 fix ile high-bit char handling
1.6.362 tcic_opts fix, DOS installer fix
1.6.370 replace cpio with pax/tar/cpio
1.6.375 fix fake telnetd
1.7.0 kernel 2.0.36
1.7.14 customize dd, cd func PS1, more.help, docs, pax 2.(>1)
1.7.29 many pax, tar, cpio fixes
1.7.30 add hexedit, add split
1.7.40 add aha152x_cs, trim elvis
1.7.52 BusLogic, seagate -> modules, bzImage -> zImage
1.7.75 trim libc, 26 sectors free! bugfixes
1.7.88 add setserial, play with inode calculations
1.7.90 make scsi modules, make network builtin
1.7.95 plip has to be module, script fixes
1.7.100 add real dhcpcd NOTE: this is temporary, I will replace this with a
faked or reduced dhcp and this will go away! But why not put it on
there for now since I have the space...
1.7.102 new mkdosfs
1.7.104 minor fixes
1.7.115 rows/columns fix
1.7.119 fix pax buildit.s unpack.s pty devs; del ibmtr symlks; 2.0.36>zImage
1.7.135 kernel 2.0.37, random urandom & sr1, fix pax bug
11) ToDo
Com TypEffPriDes
.deb e m 2 unpacker
4M e l 9 more aliases, etc?
ash b h 4 echo won't allow both -e AND -n
ash b h 6 bizarre 'read' bug
ash b l 6 manpage omits $$, $_, etc.
ash b h 7 fix or doc builtin "test" bug
awks e m 5 clean up, do more..
awks e m 5 write 'strings' in awk
busybox b m 4 fix monadic to handle -fr
busybox b m 2 kill doesn't support named signals
busybox e h 4 hack in more stuff, revamp and redo
busybox e h 7 new version?
crtn.o b h 5 ?4-K overhead from for every program?
crunch e h 5 BSD program that auto-combines binaries?
cut b m 4 fix -b, -c N-..
dhcpd e h 2 make a really small one
doc b l 5 update manpage for (gnucpio)mt
doc e m 6 busybox man pages
doc e m 2 faq>/,.s>bin,settings>etc
floppy e h 8 mess with higher formats like 1840?
generic- e m 8 which one?
hexedit e m 4 wrapper for diskediting
insmod b h 9 newer version failed?
isapnp e h 4 no
kbd e m 4 make keymaps with only changes
libc e h 9 convert to glibc6
lrp e m 4 crib from
md e m 8 check size, need
more b h 2 fix console bug, smooth scroll backwards
mount e l 3 update man pages
mount b h 6 -O2 breaks '-t nfs', -O1 works, why?
ntfs e m 4 newer version
passwd e m 2 crypt in awk, better fake login
pax e h 3 enhance to do gnu-tar and gnu-cpio opts
pax e h 3 try to break, build verification suite.
pax e h 3 add support for SVR4 formats
pcmcia e m 5 cleanup, docs, trim, test
smbfs e m 7 check size
sort e m 4 remove or replace with an awk
startup e h 2 test initrd, root.gz->minixfs ideas
xtea e m 2 do this
telnet e m 5 improve
telnetd e m 5 improve
termcap e l 4 man page w/ setterm fake shortcuts i.e. ^V^[[?5h
termcap b h 7 rebuild lib
trinux e m 4 crib from
wget e m 3 compare to snarf
================ available add=ons ===================================:
3c501.o.bz2 3c505.o.bz2 3c507.o.bz2
3c515.o.bz2 3c574_cs.o.bz2 3c575_cb.o.bz2
3c589_cs.o.bz2 53c7,8xx.o.bz2 8390.o.bz2
AM53C974.o.bz2 BLOCK_MODULES.bz2 BusLogic.o.bz2
CDROM_MODULES.bz2 ElTorito.288.bz2 FS_MODULES.bz2
NCR53c406a.o.bz2 NET_MISC_MODULES.bz2 NET_MODULES.bz2
PARIDE_MODULES.bz2 SCSI_MODULES.bz2 advansys.o.bz2
aha152x.o.bz2 aha152x_cs.o.bz2 aha1542.o.bz2
aha1740.o.bz2 aic7xxx.o.bz2 at1700.o.bz2
binfmt_aout.o.bz2 bpck-fdc.o.bz2 bsd_comp.o.bz2
bulkmem.o.bz2 busybox.diff.bz2 cardbus.o.bz2
cb_enabler.o.bz2 cistpl.o.bz2 cs.o.bz2
dd.diff.bz2 de4x5.o.bz2 depca.o.bz2
dgrs.o.bz2 dlci.o.bz2 ds.o.bz2
dtc.o.bz2 dummy.o.bz2 dummy_cs.o.bz2
dump.bz2 dvorak.map.gz e2100.o.bz2
eata.o.bz2 eepro100.o.bz2 epic100.o.bz2
epic_cb.o.bz2 eql.o.bz2 eth16i.o.bz2
ewrk3.o.bz2 fdomain.o.bz2 fdomain_cs.o.bz2
fmv18x.o.bz2 fmvj18x_cs.o.bz2 ftape-internal.o.bz2
ftape.o.bz2 ftl_cs.o.bz2 g_NCR5380.o.bz2
gdth.o.bz2 hp-plus.o.bz2 hp.o.bz2
hp100.o.bz2 hpfs.o.bz2 i82365.o.bz2
ibmtr.o.bz2 ibmtr_cs.o.bz2 ide_cs.o.bz2
iflash2+_mtd.o.bz2 iflash2_mtd.o.bz2 ile-2.7.tar.gz
imm.o.bz2 in2000.o.bz2 ipx.o.bz2
kernel.config.bz2 lance.o.bz2 lp.o.bz2
memory_cb.o.bz2 memory_cs.o.bz2 misc.o.bz2
miterm.c.bz2 mnsed.diff.bz2 ncpfs.o.bz2
ncr53c8xx.o.bz2 ne2k-pci.o.bz2 netwave_cs.o.bz2
ni52.o.bz2 ni65.o.bz2 nmclan_cs.o.bz2
paride.o.bz2 pas16.o.bz2 pax-2.2.beta9.tar.gz
pcmcia-full-config.bz2 pcmcia_core.o.bz2 pcnet32.o.bz2
pcnet_cs.o.bz2 plip.o.bz2 ppa.o.bz2
ppp.o.bz2 psaux.o.bz2 qlogic.o.bz2
qlogic_cs.o.bz2 qlogicfas.o.bz2 qlogicisp.o.bz2
restore.bz2 rsrc_mgr.o.bz2 rtl8139.o.bz2
sbpcd.o.bz2 sdla.o.bz2 seagate.o.bz2
serial_cb.o.bz2 serial_cs.o.bz2 slhc.o.bz2
smbfs.o.bz2 smc-ultra32.o.bz2 smc9194.o.bz2
smc91c92_cs.o.bz2 snarf.diff.bz2 sram_mtd.o.bz2
t128.o.bz2 tcic.o.bz2 tlan.o.bz2
tmscsim.o.bz2 tomshexd.c.bz2 trakker.o.bz2
tulip_cb.o.bz2 u14-34f.o.bz2 ufs.o.bz2
ultrastor.o.bz2 via-rhine.o.bz2 wavelan_cs.o.bz2
wd7000.o.bz2 xirc2ps_cs.o.bz2 yellowfin.o.bz2
zft-compressor.o.bz2 zftape.o.bz2
=====================================
-Tom Oehser, [EMAIL PROTECTED]
------------------------------
** FOR YOUR REFERENCE **
The service address, to which questions about the list itself and requests
to be added to or deleted from it should be directed, is:
Internet: [EMAIL PROTECTED]
You can send mail to the entire list (and comp.os.linux.development.system) via:
Internet: [EMAIL PROTECTED]
Linux may be obtained via one of these FTP sites:
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End of Linux-Development-System Digest
******************************
