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      1 #! /bin/sh
      2 
      3 # LINUX2 - shell script to set up a Postfix chroot jail for Linux
      4 # Tested on SuSE Linux 5.3 (libc5) and 7.0 (glibc2.1)
      5 
      6 # Other testers reported as working:
      7 #
      8 # 2001-01-15 Debian sid (unstable)
      9 #            Christian Kurz <shorty (at] getuid.de>
     10 
     11 # Copyright (c) 2000 - 2001 by Matthias Andree
     12 # Redistributable unter the MIT-style license that follows:
     13 # Abstract: "do whatever you want except hold somebody liable or change
     14 # the copyright information".
     15 
     16 # Permission is hereby granted, free of charge, to any person obtaining a copy
     17 # of this software and associated documentation files (the "Software"), to
     18 # deal in the Software without restriction, including without limitation the
     19 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
     20 # sell copies of the Software, and to permit persons to whom the Software is
     21 # furnished to do so, subject to the following conditions:
     22 #
     23 # The above copyright notice and this permission notice shall be included in
     24 # all copies or substantial portions of the Software.
     25 #
     26 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     27 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     28 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     29 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     30 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     31 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     32 # IN THE SOFTWARE.
     33 
     34 # 2000-09-29
     35 # v0.1: initial release
     36 
     37 # 2000-12-05
     38 # v0.2: copy libdb.* for libnss_db.so
     39 #       remove /etc/localtime in case it's a broken symlink
     40 #       restrict find to maxdepth 1 (faster)
     41 
     42 # Revision 1.4  2001/01/15 09:36:35  emma
     43 # add note it was successfully tested on Debian sid
     44 #
     45 # 20060101 /lib64 support by Keith Owens.
     46 #
     47 
     48 CP="cp -p"
     49 
     50 cond_copy() {
     51   # find files as per pattern in $1
     52   # if any, copy to directory $2
     53   dir=`dirname "$1"`
     54   pat=`basename "$1"`
     55   lr=`find "$dir" -maxdepth 1 -name "$pat"`
     56   if test ! -d "$2" ; then exit 1 ; fi
     57   if test "x$lr" != "x" ; then $CP $1 "$2" ; fi
     58 } 
     59 
     60 set -e
     61 umask 022
     62 
     63 POSTFIX_DIR=${POSTFIX_DIR-/var/spool/postfix}
     64 cd ${POSTFIX_DIR}
     65 
     66 mkdir -p etc lib usr/lib/zoneinfo
     67 test -d /lib64 && mkdir -p lib64
     68 
     69 # find localtime (SuSE 5.3 does not have /etc/localtime)
     70 lt=/etc/localtime
     71 if test ! -f $lt ; then lt=/usr/lib/zoneinfo/localtime ; fi
     72 if test ! -f $lt ; then lt=/usr/share/zoneinfo/localtime ; fi
     73 if test ! -f $lt ; then echo "cannot find localtime" ; exit 1 ; fi
     74 rm -f etc/localtime
     75 
     76 # copy localtime and some other system files into the chroot's etc
     77 $CP -f $lt /etc/services /etc/resolv.conf /etc/nsswitch.conf etc
     78 $CP -f /etc/host.conf /etc/hosts /etc/passwd etc
     79 ln -s -f /etc/localtime usr/lib/zoneinfo
     80 
     81 # copy required libraries into the chroot
     82 cond_copy '/lib/libnss_*.so*' lib
     83 cond_copy '/lib/libresolv.so*' lib
     84 cond_copy '/lib/libdb.so*' lib
     85 if test -d /lib64; then
     86   cond_copy '/lib64/libnss_*.so*' lib64
     87   cond_copy '/lib64/libresolv.so*' lib64
     88   cond_copy '/lib64/libdb.so*' lib64
     89 fi
     90 
     91 postfix reload
     92