mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Zhihao Cheng
220b7e35fe
generic/317 will fail because execvp(cmd) is executed without permission, where cmd is '$here/src/lstat64 $file', which is called by $here/src/nsexec -s -U -M "0 $qa_user_id 1000" -G "0 $qa_user_id 1000"\ $here/src/lstat64 $file So, you will see following output: From user_ns ... +execvp: Permission denied nsexec runs the instruction '$here/src/lstat64 $file' as a regular user, the regular user may not have permission to access path in '$here'. Actually, it has been fixed in4818302fbf("xfstests: generic/317 use relative paths..."), which then been modified byb7cecbea22("fstests: Add path $here before src/<file>"). Fixes:b7cecbea22("fstests: Add path $here before src/<file>") Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
93 lines
2.2 KiB
Bash
Executable File
93 lines
2.2 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2013 Oracle, Inc. All Rights Reserved.
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#
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# FS QA Test No. 317
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#
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# Check uid/gid to/from disk with a user namespace. A new file
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# will be created from inside a userns. We check that the uid/gid
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# is correct from both inside the userns and also from init_user_ns.
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# We will then unmount and remount the file system and check the
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# uid/gid from both inside the userns and from init_user_ns to show
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# that the correct uid was flushed and brought back from disk.
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $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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_cleanup()
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{
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cd /
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_scratch_unmount >/dev/null 2>&1
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}
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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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file=$SCRATCH_MNT/file1
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# real QA test starts here
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_supported_fs generic
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# only Linux supports user namespace
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_supported_os Linux
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[ -x $lstat64 ] || _notrun "$lstat64 executable not found"
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rm -f $seqres.full
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_require_scratch
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_require_user
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_require_ugid_map
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_require_userns
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qa_user_id=`id -u $qa_user`
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_filter_output()
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{
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sed \
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-e "s/$qa_user_id/qa_user/g" \
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-e "s!$SCRATCH_MNT!\$SCRATCH_MNT!"
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}
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_print_numeric_uid()
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{
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echo "From init_user_ns"
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$here/src/lstat64 $file |head -3 |_filter_output
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echo "From user_ns"
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# don't use $here/src/lstat64, as we're running cmd(src/lstat64) in
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# nsexec as a regular user, and $here may contain path component that
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# a regular user doesn't have search permission
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$here/src/nsexec -s -U -M "0 $qa_user_id 1000" -G "0 $qa_user_id 1000" src/lstat64 $file |head -3 |_filter_output
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}
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_scratch_unmount >/dev/null 2>&1
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echo "*** MKFS ***" >>$seqres.full
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echo "" >>$seqres.full
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_scratch_mkfs >>$seqres.full 2>&1 || _fail "mkfs failed"
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_scratch_mount
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chmod 777 $SCRATCH_MNT
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# create $file as "root" in userns, which is $qa_user in parent namespace
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$here/src/nsexec -s -U -M "0 $qa_user_id 1000" -G "0 $qa_user_id 1000" touch $file
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_print_numeric_uid
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echo ""
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echo "*** Remounting ***"
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echo ""
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sync
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_scratch_cycle_mount >>$seqres.full 2>&1 || _fail "remount failed"
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_print_numeric_uid
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_scratch_unmount >/dev/null 2>&1
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status=0
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exit
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