tests/misc/chcon.sh

   1 #!/bin/sh
   2 # exercise chcon
   3
   4 # Copyright (C) 2007-2023 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ chcon
  21 require_root_
  22 require_selinux_
  23 skip_if_mcstransd_is_running_
  24 mls_enabled_ || skip_ 'MLS is disabled'
  25
  26 mkdir -p d/sub/s2 || framework_failure_
  27 touch f g d/sub/1 d/sub/2 || framework_failure_
  28
  29
  30 # Set to a specified context.
  31 # Use root:object_r:tmp_t:s0.  It is special in that
  32 # it works even when mcstransd isn't running.
  33 u1=root
  34 r1=object_r
  35 t1=tmp_t
  36 range=s0
  37 ctx=$u1:$r1:$t1:$range
  38 chcon $ctx f || skip_ "Failed to set context: $ctx"
  39 stat --printf='f|%C\n' f > out || fail=1
  40
  41 # Use --reference.
  42 chcon --ref=f g || fail=1
  43 stat --printf='g|%C\n' g >> out || fail=1
  44
  45 # Change the individual parts of the context, one by one.
  46 u2=user_u
  47 r2=object_r
  48 t2=unlabeled_t
  49 for i in --user=$u2 --role=$r2 --type=$t2 --range=$range; do
  50   chcon $i f || fail=1
  51   stat --printf="f|$i|"'%C\n' f >> out || fail=1
  52 done
  53
  54 # Same, but change back using the short-named options.
  55 for i in -u$u1 -r$r1 -t$t1; do
  56   chcon $i f || fail=1
  57   stat --printf="f|$i|"'%C\n' f >> out || fail=1
  58 done
  59
  60 cat <<EOF > exp || framework_failure_
  61 f|$ctx
  62 g|$ctx
  63 f|--user=$u2|$u2:$r1:$t1:$range
  64 f|--role=$r2|$u2:$r2:$t1:$range
  65 f|--type=$t2|$u2:$r2:$t2:$range
  66 f|--range=$range|$u2:$r2:$t2:$range
  67 f|-uroot|root:object_r:$t2:$range
  68 f|-robject_r|root:object_r:$t2:$range
  69 f|-ttmp_t|root:object_r:tmp_t:$range
  70 EOF
  71
  72 compare exp out || fail=1
  73
  74 chcon --verbose -u$u1 f > out || fail=1
  75 echo "changing security context of 'f'" > exp || framework_failure_
  76 compare exp out || fail=1
  77
  78 Exit $fail