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iotests/308: Test +w on read-only FUSE exports

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Test that +w on read-only FUSE exports returns an EROFS error.  u+x on
the other hand should work.  (There is no special reason to choose u+x
here, it simply is like +w another flag that is not set by default.)

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210625142317.271673-6-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2021-06-25 16:23:16 +02:00 committed by Kevin Wolf
parent 6aeeaed29c
commit f29add26d4
2 changed files with 15 additions and 0 deletions
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11
tests/qemu-iotests/308
View file

@ -170,6 +170,17 @@ fuse_export_add 'export-mp' "'mountpoint': '$EXT_MP'"
# Check that the export presents the same data as the original image
$QEMU_IMG compare -f raw -F $IMGFMT -U "$EXT_MP" "$TEST_IMG"
# Some quick chmod tests
stat -c 'Permissions pre-chmod: %a' "$EXT_MP"
# Verify that we cannot set +w
chmod u+w "$EXT_MP" 2>&1 | _filter_testdir | _filter_imgfmt
stat -c 'Permissions post-+w: %a' "$EXT_MP"
# But that we can set, say, +x (if we are so inclined)
chmod u+x "$EXT_MP" 2>&1 | _filter_testdir | _filter_imgfmt
stat -c 'Permissions post-+x: %a' "$EXT_MP"
echo
echo '=== Mount over existing file ==='

4
tests/qemu-iotests/308.out
View file

@ -50,6 +50,10 @@ wrote 67108864/67108864 bytes at offset 0
} }
{"return": {}}
Images are identical.
Permissions pre-chmod: 400
chmod: changing permissions of 'TEST_DIR/t.IMGFMT.fuse': Read-only file system
Permissions post-+w: 400
Permissions post-+x: 500
=== Mount over existing file ===
{'execute': 'block-export-add',