Your message dated Mon, 30 Aug 2010 11:29:40 +0200
with message-id <20100830092940.ge26...@prunille.vinc17.org>
and subject line Re: [Pkg-cups-devel] Bug#588150: cups no longer works with
http: HTTP/1.1 426 Upgrade Required + server DoS
has caused the Debian Bug report #588150,
regarding cups no longer works with http: HTTP/1.1 426 Upgrade Required +
server DoS
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)
--
588150: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=588150
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: cups
Version: 1.4.4-1
Severity: grave
[I'm setting the severity to "grave" mainly because cups does more
than 100 HTTP posts per second to the remote server, and this is
really bad because the server is shared amongst many users.]
While cups 1.4.3-1 works fine (I could check by downgrading to this
version), cups 1.4.4-1 no longer works with http. A strace shows
errors like:
16:07:02 sendto(3, "POST / HTTP/1.1\r\nContent-Length:"..., 153, 0, NULL, 0) =
153
16:07:02 sendto(3, "\...@\2\0\0\0\1\1g\0\22attributes-charset\0\5"..., 636, 0,
NULL, 0) = 636
16:07:02 poll([{fd=3, events=POLLIN}], 1, 1000) = 1 ([{fd=3,
revents=POLLIN|POLLERR}])
16:07:02 recvfrom(3, "HTTP/1.1 426 Upgrade Required\r\nD"..., 2048, 0, NULL,
NULL) = 787
16:07:02 close(3) = 0
with commands such as lpq, lpr, lpstat.
Sometimes there are lots of such errors. For instance, a
strace -t lpstat
shows 3868 such errors after 30 seconds (see attached strace output,
compressed with xz). Sometimes the connection freezes. For instance:
16:07:02 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
16:07:02 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
16:07:02 setsockopt(3, SOL_TCP, TCP_NODELAY, [1], 4) = 0
16:07:02 fcntl(3, F_SETFD, FD_CLOEXEC) = 0
16:07:02 connect(3, {sa_family=AF_INET, sin_port=htons(631),
sin_addr=inet_addr("140.77.14.157")}, 16) = ? ERESTARTSYS (To be restarted)
16:07:13 --- SIGINT (Interrupt) @ 0 (0) ---
16:07:13 +++ killed by SIGINT +++
Perhaps the server didn't like all the requests that were done
previously.
The only parameter in /etc/cups/client.conf is a ServerName line
with the server name.
-- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.ISO8859-1 (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/dash
Versions of packages cups depends on:
ii adduser 3.112 add and remove users and groups
ii bc 1.06.95-2 The GNU bc arbitrary precision cal
ii cups-client 1.4.4-1 Common UNIX Printing System(tm) -
ii cups-common 1.4.4-1 Common UNIX Printing System(tm) -
ii debconf [debconf-2.0] 1.5.32 Debian configuration management sy
ii ghostscript 8.70~dfsg-2.1 The GPL Ghostscript PostScript/PDF
ii libavahi-client3 0.6.25-4 Avahi client library
ii libavahi-common3 0.6.25-4 Avahi common library
ii libc6 2.11.2-2 Embedded GNU C Library: Shared lib
ii libcups2 1.4.4-1 Common UNIX Printing System(tm) -
ii libcupscgi1 1.4.4-1 Common UNIX Printing System(tm) -
ii libcupsdriver1 1.4.4-1 Common UNIX Printing System(tm) -
ii libcupsimage2 1.4.4-1 Common UNIX Printing System(tm) -
ii libcupsmime1 1.4.4-1 Common UNIX Printing System(tm) -
ii libcupsppdc1 1.4.4-1 Common UNIX Printing System(tm) -
ii libdbus-1-3 1.2.24-1 simple interprocess messaging syst
ii libgcc1 1:4.4.4-6 GCC support library
ii libgssapi-krb5-2 1.8.1+dfsg-5 MIT Kerberos runtime libraries - k
ii libijs-0.35 0.35-7 IJS raster image transport protoco
ii libkrb5-3 1.8.1+dfsg-5 MIT Kerberos runtime libraries
ii libldap-2.4-2 2.4.21-1 OpenLDAP libraries
ii libpam0g 1.1.1-3 Pluggable Authentication Modules l
ii libpaper1 1.1.24 library for handling paper charact
ii libpoppler5 0.12.4-1 PDF rendering library
ii libslp1 1.2.1-7.7 OpenSLP libraries
ii libstdc++6 4.4.4-6 The GNU Standard C++ Library v3
ii libusb-0.1-4 2:0.1.12-15 userspace USB programming library
ii lsb-base 3.2-23.1 Linux Standard Base 3.2 init scrip
ii perl-modules 5.10.1-13 Core Perl modules
ii poppler-utils 0.12.4-1 PDF utilitites (based on libpopple
ii procps 1:3.2.8-9 /proc file system utilities
ii ssl-cert 1.0.25 simple debconf wrapper for OpenSSL
ii ttf-freefont 20090104-7 Freefont Serif, Sans and Mono True
ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime
Versions of packages cups recommends:
ii cups-driver-gutenprint 5.2.5-1 printer drivers for CUPS
ii foomatic-filters 4.0-20090509-1 OpenPrinting printer support - fil
ii ghostscript-cups 8.70~dfsg-2.1 The GPL Ghostscript PostScript/PDF
Versions of packages cups suggests:
ii cups-bsd 1.4.4-1 Common UNIX Printing System(tm) -
pn cups-pdf <none> (no description available)
pn cups-ppdc <none> (no description available)
ii foomatic-db 20100630-1 OpenPrinting printer support - dat
ii foomatic-db-engine 4.0.4-1 OpenPrinting printer support - pro
ii hplip 3.10.5-4 HP Linux Printing and Imaging Syst
pn smbclient <none> (no description available)
ii udev 158-1 /dev/ and hotplug management daemo
pn xpdf-korean | xpdf-japanese | <none> (no description available)
-- debconf information:
cupsys/raw-print: true
cupsys/backend: ipp, lpd, parallel, scsi, serial, socket, usb, snmp, dnssd
lpstat-strace.xz
Description: Binary data
--- End Message ---
--- Begin Message ---
Version: 1.4.4-3
On 2010-08-30 10:38:34 +0200, Martin Pitt wrote:
> Is that still true with 1.4.4-3? -1 and -2 ended up with TLS disabled
> due to a GNUTLS change. This is fixed in version -3.
1.4.4-3 solves the problem. Closing.
--
Vincent Lefèvre <vinc...@vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
--- End Message ---
