agents/plugins/runas

   1 #!/bin/bash
   2 # +------------------------------------------------------------------+
   3 # |             ____ _               _        __  __ _  __           |
   4 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   5 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   6 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   7 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   8 # |                                                                  |
   9 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  10 # +------------------------------------------------------------------+
  11 #
  12 # This file is part of Check_MK.
  13 # The official homepage is at http://mathias-kettner.de/check_mk.
  14 #
  15 # check_mk is free software;  you can redistribute it and/or modify it
  16 # under the  terms of the  GNU General Public License  as published by
  17 # the Free Software Foundation in version 2.  check_mk is  distributed
  18 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  19 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  20 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  21 # tails. You should have  received  a copy of the  GNU  General Public
  22 # License along with GNU Make; see the file  COPYING.  If  not,  write
  23 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  24 # Boston, MA 02110-1301 USA.
  25
  26 # This plugin allows to execute mrpe, local and plugin skripts with a different user context
  27 # It is configured with in the file $MK_CONFDIR/runas.cfg
  28 #
  29 # Syntax:
  30 # [Script type] [User context] [File / Directory]
  31 #
  32 # Example configuration
  33 # # Execute mrpe commands in given files under specific user
  34 # # A '-' means no user context switch
  35 # mrpe ab /home/ab/mrpe_commands.cfg
  36 # mrpe lm /home/lm/mrpe_commands.cfg
  37 # mrpe - /root/mrpe/extra_commands.cfg
  38 #
  39 # Excecute -executable- files in the target directories under specific user context
  40 # plugin ab /var/ab/plugins
  41 # local ab /var/ab/local
  42 #
  43
  44 grep -Ev '^[[:space:]]*($|#)' "$MK_CONFDIR/runas.cfg" | \
  45 while read type user include
  46 do
  47     if [ -d $include -o \( "$type" == "mrpe" -a -f $include \) ] ; then
  48         PREFIX=""
  49         if [ "$user" != "-" ] ; then
  50             PREFIX="su $user -c "
  51         fi
  52
  53         # mrpe includes
  54         if [ "$type" == "mrpe" ] ; then
  55             echo "<<<mrpe>>>"
  56             grep -Ev '^[[:space:]]*($|#)' "$include" | \
  57             while read descr cmdline
  58             do
  59                 PLUGIN=${cmdline%% *}
  60                 if [ -n "$PREFIX" ] ; then
  61                     cmdline="$PREFIX\"$cmdline\""
  62                 fi
  63                 OUTPUT=$(eval "$cmdline")
  64                 echo -n "(${PLUGIN##*/}) $descr $? $OUTPUT" | tr \\n \\1
  65                 echo
  66             done
  67         # local and plugin includes
  68         elif [ "$type" == "local" -o "$type" == "plugin" ] ; then
  69             if [ "$type" == "local" ] ; then
  70                 echo "<<<local>>>"
  71             fi
  72             find $include -executable -type f | \
  73             while read filename
  74             do
  75                 if [ -n "$PREFIX" ] ; then
  76                     cmdline="$PREFIX\"$filename\""
  77                 else
  78                     cmdline=$filename
  79                 fi
  80                 $cmdline
  81             done
  82         fi
  83     fi
  84 done