Bug 254586 – iwl3945 Fix for Ad-hoc Networking (sys-kernel/gentoo-sources-2.6.27-r7)

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Iskren Slavov 2009-01-11 20:31:49 UTC]

With the default iwl3945 driver when you try to create an Ad-hoc network with WEP encryption it constantly reconnects. And the Ad-hoc network is unusable. This patch for the kernel driver fixes it. 

Reproducible: Always

Steps to Reproduce:
1. Create your home Ad-hoc network like this:
/etc/conf.d/net:

modules=( "iwconfig" )
config_wlan0=( "192.168.0.1 netmask 255.255.255.0" )
scan_mode_wlan0="ad-hoc"
mode_wlan0="ad-hoc"
essid_wlan0="foo"
adhoc_essid_wlan0="foo"
key_foo="s:testnetkey enc open"

2. Start your wireless card:
/etc/init.d/net.wlan0 start

3. Connect a client to the Ad-hoc network and start using the network.

4. Look at all the pretty disconnects.
Actual Results:  
The client (Windows XP machine) kept disconnecting and reconnecting to the Ad-hoc network constantly.

Expected Results:  
The network shuld have been usable. That's why I looked at the git sources and found this patch. When I applied the patch all was fixed and the Ad-hoc network became usable.

Portage 2.1.6.4 (default/linux/x86/2008.0, gcc-4.1.2, glibc-2.6.1-r0, 2.6.27-gentoo-r7 i686)
=================================================================
System uname: Linux-2.6.27-gentoo-r7-i686-Genuine_Intel-R-_CPU_T2500_@_2.00GHz-with-glibc2.0
Timestamp of tree: Sun, 11 Jan 2009 15:45:01 +0000
ccache version 2.4 [enabled]
app-shells/bash:     3.2_p39
dev-java/java-config: 1.3.7-r1, 2.1.6-r1
dev-lang/python:     2.5.2-r7
dev-util/ccache:     2.4-r7
sys-apps/baselayout: 1.12.11.1
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.63
sys-devel/automake:  1.7.9-r1, 1.9.6-r2, 1.10.2
sys-devel/binutils:  2.18-r3
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   1.5.26
virtual/os-headers:  2.6.27-r2
ACCEPT_KEYWORDS="x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -mtune=prescott -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-O2 -mtune=prescott -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="ccache distlocks fixpackages parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch"
GENTOO_MIRRORS="http://distfiles.gentoo.bg/  http://mirrors.ludost.net/gentoo/  http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/"
LDFLAGS="-Wl,-O1"
LINGUAS="en us uk"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="X aac acl alsa amr berkdb bzip2 cli cracklib crypt cups custom-cflags custom-cpuopts custom-optimization dbus dri flac fortran gdbm gif gpm gtk hal iconv ipv6 isdnlog jpeg midi mp3 mudflap ncurses nls nptl nptlonly opengl openmp pam pcre perl pppd python rar readline reflection session spl ssl startup-notification svg sysfs tcpd tiff unicode v4l2 vorbis win32codecs x264 x86 xcomposite xorg xulrunner xvid zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en us uk" USERLAND="GNU" VIDEO_CARDS="nvidia nv fbdev vesa"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, MAKEOPTS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY

[Comment 1 Iskren Slavov 2009-01-11 20:33:26 UTC]

Created attachment 178116 [details, diff]
Patch to fix Ad-hoc network for kernel 2.6.27

patch using this line:
patch -p0 < iwl3945-ad-hoc-patch.diff

[Comment 2 Daniel Drake (RETIRED) 2009-01-19 12:57:19 UTC]

fixed in gentoo-sources-2.6.27-r8 and gentoo-sources-2.6.28-r1

[Comment 3 Denilson Sá Maia 2009-03-04 05:47:36 UTC]

Do you know if/when this patch will be added to the mainline (vanilla) kernel?

(yeah, I know vanilla-sources are unsupported; I just want to know when this will be fixed "upstream")