This fixes a regression introduced in commit 2a05cbe42 ('block: Allow
block devices without files'):
$ qemu-system-x86_64 -drive driver=file
qemu-system-x86_64: block.c:892: bdrv_open_common: Assertion
`!drv->bdrv_needs_filename || filename != ((void *)0)' failed.
Now the respective check must be performed not only in bdrv_file_open(),
but also in bdrv_open().
Signed-off-by: Kevin Wolf <kw...@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
---
block.c | 11 ++++++-----
tests/qemu-iotests/051 | 12 ++++++++++++
tests/qemu-iotests/051.out | 24 ++++++++++++++++++++++++
3 files changed, 42 insertions(+), 5 deletions(-)
diff --git a/block.c b/block.c
index cb21a5f..ac0ccac 100644
--- a/block.c
+++ b/block.c
@@ -832,6 +832,12 @@ static int bdrv_open_common(BlockDriverState *bs,
BlockDriverState *file,
filename = qdict_get_try_str(options, "filename");
}
+ if (drv->bdrv_needs_filename && !filename) {
+ error_setg(errp, "The '%s' block driver requires a file name",
+ drv->format_name);
+ return -EINVAL;
+ }
+
trace_bdrv_open_common(bs, filename ?: "", flags, drv->format_name);
node_name = qdict_get_try_str(options, "node-name");
@@ -1031,11 +1037,6 @@ int bdrv_file_open(BlockDriverState **pbs, const char
*filename,
goto fail;
}
qdict_del(options, "filename");
- } else if (drv->bdrv_needs_filename && !filename) {
- error_setg(errp, "The '%s' block driver requires a file name",
- drv->format_name);
- ret = -EINVAL;
- goto fail;
}
if (!drv->bdrv_file_open) {
diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index b23d91b..46345fb 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -172,6 +172,18 @@ run_qemu -drive file="$TEST_IMG",file.driver=file
run_qemu -drive file="$TEST_IMG",file.driver=qcow2
echo
+echo === Leaving out required options ===
+echo
+
+run_qemu -drive driver=file
+run_qemu -drive driver=nbd
+run_qemu -drive driver=raw
+run_qemu -drive file.driver=file
+run_qemu -drive file.driver=nbd
+run_qemu -drive file.driver=raw
+run_qemu -drive foo=bar
+
+echo
echo === Parsing protocol from file name ===
echo
diff --git a/tests/qemu-iotests/051.out b/tests/qemu-iotests/051.out
index d0c5173..30e2dbd 100644
--- a/tests/qemu-iotests/051.out
+++ b/tests/qemu-iotests/051.out
@@ -225,6 +225,30 @@ Testing: -drive file=TEST_DIR/t.qcow2,file.driver=qcow2
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,file.driver=qcow2: could not open disk
image TEST_DIR/t.qcow2: Block format 'qcow2' used by device '' doesn't support
the option 'filename'
+=== Leaving out required options ===
+
+Testing: -drive driver=file
+QEMU_PROG: -drive driver=file: could not open disk image ide0-hd0: The 'file'
block driver requires a file name
+
+Testing: -drive driver=nbd
+QEMU_PROG: -drive driver=nbd: could not open disk image ide0-hd0: Could not
open image: Invalid argument
+
+Testing: -drive driver=raw
+QEMU_PROG: -drive driver=raw: could not open disk image ide0-hd0: Can't use
'raw' as a block driver for the protocol level
+
+Testing: -drive file.driver=file
+QEMU_PROG: -drive file.driver=file: could not open disk image ide0-hd0: The
'file' block driver requires a file name
+
+Testing: -drive file.driver=nbd
+QEMU_PROG: -drive file.driver=nbd: could not open disk image ide0-hd0: Could
not open image: Invalid argument
+
+Testing: -drive file.driver=raw
+QEMU_PROG: -drive file.driver=raw: could not open disk image ide0-hd0: Can't
use 'raw' as a block driver for the protocol level
+
+Testing: -drive foo=bar
+QEMU_PROG: -drive foo=bar: could not open disk image ide0-hd0: Must specify
either driver or file
+
+
=== Parsing protocol from file name ===
Testing: -hda foo:bar
--
1.8.1.4
