Package: kismet Version: 2004.04.R1-5 Severity: wishlist Hi.
After the interface name is changed with the new cisco kernel driver, the /proc/driver/aironet/<interface_name> still is the original interface name. This arguably is the kernel driver bug. Moreover, there really is no way at all to tell the old name after the renaming -- unless you have just one card on the system, that is, or You resort to some active trickery). I suggest setting the Node Name to a random magic temporarily using iwconfig foo nick <magic>, then look in through /proc/driver/aironet/*/Config:NodeName; bingo, the one with the Node Name set to this magic is the one, then reset it back. A script to outline this idea is attached; if you like it and don't want to incorporate it yourself, I probably will be likely to do it myself. Cheers, Jan. -- System Information: Debian Release: 3.1 APT prefers testing APT policy: (700, 'testing') Architecture: i386 (i686) Kernel: Linux 2.4.28-jan Locale: LANG=C, LC_CTYPE=cs_CZ.ISO-8859-2 (charmap=ISO-8859-2) Versions of packages kismet depends on: ii ethereal-common 0.10.6-1 Network traffic analyser (common f ii libbz2-1.0 1.0.2-1 A high-quality block-sorting file ii libc6 2.3.2.ds1-18 GNU C Library: Shared libraries an ii libdps1 4.3.0.dfsg.1-8 Display PostScript (DPS) client li ii libexpat1 1.95.8-1 XML parsing C library - runtime li ii libfreetype6 2.1.7-2.3 FreeType 2 font engine, shared lib ii libgcc1 1:3.4.3-6 GCC support library ii libglib1.2 1.2.10-9 The GLib library of C routines ii libgmp3 4.1.4-5 Multiprecision arithmetic library ii libice6 4.3.0.dfsg.1-8 Inter-Client Exchange library ii libjasper-1.701-1 1.701.0-2 The JasPer JPEG-2000 runtime libra ii libjpeg62 6b-9 The Independent JPEG Group's JPEG ii liblcms1 1.13-1 Color management library ii libmagick6 6:6.0.6.2-1.5 Image manipulation library ii libncurses5 5.4-4 Shared libraries for terminal hand ii libpng12-0 1.2.8rel-1 PNG library - runtime ii libsm6 4.3.0.dfsg.1-8 X Window System Session Management ii libstdc++5 1:3.3.4-13 The GNU Standard C++ Library v3 ii libtiff4 3.6.1-4 Tag Image File Format library ii libx11-6 4.3.0.dfsg.1-8 X Window System protocol client li ii libxext6 4.3.0.dfsg.1-8 X Window System miscellaneous exte ii libxml2 2.6.11-5 GNOME XML library ii libxt6 4.3.0.dfsg.1-8 X Toolkit Intrinsics ii wireless-tools 27-1 Tools for manipulating Linux Wirel ii xlibs 4.3.0.dfsg.1-8 X Window System client libraries m ii zlib1g 1:1.2.2-3 compression library - runtime -- no debconf information -- )^o-o^| jabber: [EMAIL PROTECTED] | .v K e-mail: jjminar FastMail FM ` - .' phone: +44(0)7981 738 696 \ __/Jan icq: 345 355 493 __|o|__Minář irc: [EMAIL PROTECTED]
#!/bin/sh
#
# get_orig_airo_if_name -- print the original aironet interface name on stdout
#
# Usage: get_orig_airo_if_name <current_if_name>
#
# Note that we need the capability to set a device nickname, which typically
# requires being root, as well as read access to $PROCDIR, which may not be
# world-readable on a given system.
#
# Exit code: 0 on success, non-0 otherwise
set -e
[ "$#" -ne 1 ] && {
echo "Usage: get_orig_airo_if_name <interface>" >&2
exit 1
}
IF="$1"
# XXX Scrap this when the iwconfig invocation below is fixed
case "$IF" in --help)
{
echo "Yes, \`$IF' is a fair device name, but iwconfig would"
echo "choke on it. See Debian Bug#289657. Aborting."
} >&2
exit 1;
;;
esac
PROCDIR="/proc/driver/aironet"
# If we loop too many times, something almost certainly is wrong
TRIES=20
WE="${0##*/}"
if [ "$(ls "$PROCDIR" | wc -l)" -lt 1 ]; then
echo "$WE: Nothing in $PROCDIR, aborting." >&2
exit 1
fi
while [ "$((TRIES--))" -gt 0 ]; do
# (1) Get enough randomness, so we don't loop thru all the devices
# unnecessarily, but don't drain the entropy sources too much. This is
# kind of moot because of (3)
#
# (2) Convert the random bytes to some printable representation: md5sum
# is a part of Debian base, and is pretty light on resources.
#
# (3) The max length of a nickname is 16 bytes, AFAICT from RTFSing,
# and:
#
# # iwconfig ap0 nick `perl -e 'print "A" x 17'`
# Error for wireless request "Set Nickname" (8B1C) :
# SET failed on device ap0 ; Argument list too long.
MAGIC="`head -c 8 /dev/urandom | md5sum | head -c16`"
# XXX Should be ``iwconfig -- "$IF"'' -- see Debian Bug#289657
# Fix the above warning when this is fixed
iwconfig "$IF" nick "$MAGIC"
for a in "$PROCDIR"/*; do
# We could just ``grep "$MAGIC"'', but let's be anal
if grep "^NodeName: $MAGIC\$" "$a/Config" > /dev/null; then
echo "${a##"$PROCDIR/"}"
exit 0
fi
done
done
echo "$WE: Unable to get the original device name for \`$IF'." >&2
exit 1
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