QEMU allows and in cases where you omit the not-strictly-needed 'raw'
driver on top of raw images automatically uses the protocol name inside
of the 'backing file format' field of the qcow2 image.
Libvirt expects only format names in that field.
Add example images showing this scenario, which will be fixed later.
The qcow2 image files in this commit were formatted as:
qemu-img create -f qcow2 -F nbd -b nbd+tcp://example.org:6000/blah -u qcow2-protocol-backing-nbd.qcow2 10M
and
qemu-img create -f qcow2 -F file -b raw qcow2-protocol-backing-file.qcow2
thus using 'nbd' and 'file' as backing format respectively.
(note that '-b raw' refers to the file in the example image folder)
To satisfy the test, note that the NBD image is also rejected as we
can't probe it, thus such configuration would not work.
Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
tests/virstoragetest.c | 8 +++++++
.../images/qcow2-protocol-backing-file.qcow2 | Bin 0 -> 196616 bytes
.../images/qcow2-protocol-backing-nbd.qcow2 | Bin 0 -> 196616 bytes
.../out/qcow2-protocol-backing-file | 21 ++++++++++++++++++
4 files changed, 29 insertions(+)
create mode 100644 tests/virstoragetestdata/images/qcow2-protocol-backing-file.qcow2
create mode 100644 tests/virstoragetestdata/images/qcow2-protocol-backing-nbd.qcow2
create mode 100644 tests/virstoragetestdata/out/qcow2-protocol-backing-file
diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index c28a23e332..53533d5885 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -478,6 +478,14 @@ mymain(void)
abs_srcdir "/virstoragetestdata/images/qcow2_qcow2-auto.qcow2",
VIR_STORAGE_FILE_QCOW2, EXP_PASS);
+ /* QCOW2 with protocol recorded inside the 'backing file format field */
+ TEST_CHAIN("qcow2-protocol-backing-file",
+ abs_srcdir "/virstoragetestdata/images/qcow2-protocol-backing-file.qcow2",
+ VIR_STORAGE_FILE_QCOW2, EXP_PASS);
+ TEST_CHAIN("qcow2-protocol-backing-nbd",
+ abs_srcdir "/virstoragetestdata/images/qcow2-protocol-backing-nbd.qcow2",
+ VIR_STORAGE_FILE_QCOW2, EXP_FAIL);
+
/* Qcow2 file with missing backing file but specified type */
TEST_CHAIN("qcow2-qcow2_missing",
abs_srcdir "/virstoragetestdata/images/qcow2_qcow2-missing.qcow2",
diff --git a/tests/virstoragetestdata/images/qcow2-protocol-backing-file.qcow2 b/tests/virstoragetestdata/images/qcow2-protocol-backing-file.qcow2
new file mode 100644
index 0000000000000000000000000000000000000000..b3fe320f0f521820f2c4a614fed4cea18fdca55c
GIT binary patch
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literal 0
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diff --git a/tests/virstoragetestdata/images/qcow2-protocol-backing-nbd.qcow2 b/tests/virstoragetestdata/images/qcow2-protocol-backing-nbd.qcow2
new file mode 100644
index 0000000000000000000000000000000000000000..0ae422d8f550cc6bacf3d4d757110177ce457865
GIT binary patch
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diff --git a/tests/virstoragetestdata/out/qcow2-protocol-backing-file b/tests/virstoragetestdata/out/qcow2-protocol-backing-file
new file mode 100644
index 0000000000..b565bdba77
--- /dev/null
+++ b/tests/virstoragetestdata/out/qcow2-protocol-backing-file
@@ -0,0 +1,21 @@
+path:ABS_SRCDIR/virstoragetestdata/images/qcow2-protocol-backing-file.qcow2
+backingStoreRaw: raw
+backingStoreRawFormat: <null>(-1)
+capacity: 1024
+encryption: 0
+relPath:<null>
+type:file
+format:qcow2
+protocol:none
+hostname:<null>
+
+path:ABS_SRCDIR/virstoragetestdata/images/raw
+backingStoreRaw: <null>
+backingStoreRawFormat: none(0)
+capacity: 0
+encryption: 0
+relPath:raw
+type:file
+format:raw
+protocol:none
+hostname:<null>
--
2.42.0
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