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https://github.com/linux-apfs/apfstests.git
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Eric Biggers
f5413189db
This IRIX-specific test mainly tested whether a file's capabilities are cleared when it is written to. Port the test to the Linux libcap tools and update it to expect the Linux semantics which are a little simpler: capabilities are always cleared even if the program is root (or has CAP_FSETID). The test also tests that chmod doesn't affect open file descriptors; this is mostly unrelated, but keep it in for now. [eguan: add _require_test_program rule for src/writemod] Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
93 lines
2.2 KiB
Bash
Executable File
93 lines
2.2 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 093
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#
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# Test clearing of capabilities on write.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
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# Copyright (c) 2017 Google, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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here=`pwd`
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tmp=/tmp/$$
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status=1 # FAILure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/attr
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_cleanup()
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{
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[ -n "$TEST_DIR" ] && rm -f $file
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}
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filefilter()
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{
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sed -e "s#$file#file#"
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}
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_test
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_require_attrs
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_require_user
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_require_test_program "writemod"
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rm -f $seqres.full
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echo "QA output created by $seq"
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echo ""
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file=$TEST_DIR/$seq.file
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rm -f $file
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touch $file
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echo "**** Verifying that appending to file clears capabilities ****"
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setcap cap_chown+ep $file
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getcap $file | filefilter
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echo data1 >> $file
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cat $file
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getcap $file | filefilter
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echo
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echo "**** Verifying that appending to file doesn't clear other xattrs ****"
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setcap cap_chown+ep $file
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$SETFATTR_PROG -n trusted.name -v value $file
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echo data2 >> $file
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cat $file
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$GETFATTR_PROG -m '^trusted\.*' --absolute-names $file | filefilter
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echo "**** Verifying that chmod doesn't affect open file descriptors ****"
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rm -f $file
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touch $file
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chown $qa_user $file
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chmod ugo+w $TEST_DIR
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su $qa_user -c "src/writemod $file" | filefilter
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cat $file
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# success, all done
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status=0
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exit
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