Package: nodm Version: 0.11-1.3 Followup-For: Bug #701578 Hello,
after adding an strace to the call of nodm, I think I found the problem:
nohup strace -ff -t -o /var/tmp/nodm_$$ /etc/init.d/nodm start >
/var/tmp/nodm_$$.out 2>&1
I get at the end of /var/tmp/nodm_4218.4385 (the one of the nodm binary
according to /var/run/nodm.pid, which remains after the failed call):
11:59:28 getuid() = 103
11:59:28 write(2, "nodm: can only be run by root\n", 30) = 30
11:59:28 exit_group(1) = ?
Adding then an 'id' call to the /etc/pm/sleep.d/10_vdr-dvb, I get the
following result in /var/log/pm-suspend.log:
uid=103(vdr) gid=106(vdr) euid=0(root)
Gruppen=0(root),24(cdrom),29(audio),44(video),46(plugdev),106(vdr)
(notice the euid=0)
According to the limited understanding I got through the reading of
http://www.enggresources.com/classroom/viewans.php?qid=889
I think that the correct behavior should be to call geteuid and not getuid,
as I assume that the only intent is to check that the user has root rights
(and not that they is a specific user).
It would be really nice to fix this (a sudo-based workaround will probably
be feasible but is ugly).
Thanks, Eric
PS: I attach the complete strace output in case you'd like to analyse deeper.
-- System Information:
Debian Release: 7.0
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.6.9+vdr1 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages nodm depends on:
ii debconf [debconf-2.0] 1.5.49
ii libc6 2.13-37
ii libpam0g 1.1.3-7.1
ii libx11-6 2:1.5.0-1
ii x11-common 1:7.7+1
ii x11-xserver-utils 7.7~3
nodm recommends no packages.
nodm suggests no packages.
-- Configuration Files:
/etc/init.d/nodm changed:
set -e
set -x
PATH=/bin:/usr/bin:/sbin:/usr/sbin
DESC="Automatic Display Manager"
NAME=nodm
PIDDIR=/var/run/
PIDFILE=${PIDDIR}/${NAME}.pid
NODM_ENABLED=no
NODM_XINIT=/usr/bin/xinit
NODM_FIRST_VT=7
NODM_XSESSION=/etc/X11/Xsession
NODM_X_OPTIONS="-nolisten tcp"
NODM_USER=root
NODM_MIN_SESSION_TIME=60
if [ -f /etc/default/$NAME ]
then
. /etc/default/$NAME
fi
export NODM_XINIT NODM_XSESSION NODM_X_OPTIONS NODM_USER NODM_MIN_SESSION_TIME
NODM_FIRST_VT
[ -x /usr/sbin/nodm ] || exit 0
.. /lib/init/vars.sh
.. /lib/lsb/init-functions
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
if [ "$NODM_ENABLED" = "no" ] || [ "$NODM_ENABLED" = "false" ]
then
log_warning_msg "Not starting $NAME because
NODM_ENABLED is '$NODM_ENABLED' in /etc/default/$NAME"
else
start-stop-daemon --start --verbose --oknodo --pidfile
${PIDFILE} --make-pidfile --background --exec /usr/sbin/nodm
fi
[ "$VERBOSE" != no ] && log_end_msg $?
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
start-stop-daemon --stop --pidfile ${PIDFILE} --oknodo
rm -f ${PIDFILE}
[ "$VERBOSE" != no ] && log_end_msg $?
;;
restart|force-reload)
$0 stop
$0 start
;;
*)
log_success_msg "Usage: $0 {start|stop|restart|force-reload}"
>&2
exit 1
;;
esac
exit 0
-- debconf information:
nodm/min_session_time: 60
nodm/enabled: true
nodm/xsession: /etc/X11/Xsession
nodm/x_options: -nolisten tcp
nodm/first_vt: 7
nodm/user: vdr
nodm_4218.tgz
Description: GNU Zip compressed data
