testcases/audit-test/trustedprograms/tests/test_mount_context_tmpfs.bash

   1 #!/bin/bash
   2 ###############################################################################
   3 # (c) Copyright Hewlett-Packard Development Company, L.P., 2005
   4 #
   5 #   This program is free software: you can redistribute it and/or modify
   6 #   it under the terms of version 2 the GNU General Public License as
   7 #   published by the Free Software Foundation.
   8 #
   9 #   This program is distributed in the hope that it will be useful,
  10 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 #   GNU General Public License for more details.
  13 #
  14 #   You should have received a copy of the GNU General Public License
  15 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 ###############################################################################
  17 #
  18 # PURPOSE:
  19 # Verify that mount -o context=foo can override the context on tmpfs
  20
  21 source tp_mount_functions.bash || exit 2
  22
  23 # mount tmpfs on a temporary directory location.
  24 # collect the context of the root inode of this filesystem.
  25 prepend_cleanup 'umount -l $mnt'
  26 mount -t tmpfs none $mnt || exit_error "mount tmpfs failed"
  27 context1=$(get_fsobj_context $mnt/.)
  28 umount $mnt
  29
  30 # mount tmpfs using -o context= to force a context.
  31 # collect the context of the root inode of this filesystem.
  32 mount -t tmpfs -o context=staff_u:object_r:lspp_harness_tmpfs_t:s1:c1 \
  33     none $mnt || exit_error "mount tmpfs -o context failed"
  34 context2=$(get_fsobj_context $mnt/.)
  35 umount $mnt
  36
  37 # make sure context2 at least contains something that looks like a context
  38 [[ $context2 == *:* ]] || exit_error "context2=$context2"
  39
  40 # the two contexts should differ; quote RHS to guard against globs
  41 [[ $context1 != "$context2" ]] || exit_fail "both contexts are $context1"
  42
  43 exit_pass