block: Don't parse 'filename' option

When using the QDict option 'filename', it is supposed to be interpreted
literally. The code did correctly avoid guessing the protocol from any
string before the first colon, but it still called bdrv_parse_filename()
which would, for example, incorrectly remove a 'file:' prefix in the
raw-posix driver.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>

diff --git a/block.c b/block.c
index 7a90a1b25ee217dcef2e13edaef094f58fc4a5f4..df2b8d1b4117eed82e4764b5fd43c1ba94115ad2 100644 (file)
--- a/block.c
+++ b/block.c
@@ -968,7 +968,7 @@ static int bdrv_file_open(BlockDriverState *bs, const char *filename,
 {
     BlockDriver *drv;
     const char *drvname;
-    bool allow_protocol_prefix = false;
+    bool parse_filename = false;
     Error *local_err = NULL;
     int ret;
 
@@ -977,7 +977,7 @@ static int bdrv_file_open(BlockDriverState *bs, const char *filename,
         filename = qdict_get_try_str(*options, "filename");
     } else if (filename && !qdict_haskey(*options, "filename")) {
         qdict_put(*options, "filename", qstring_from_str(filename));
-        allow_protocol_prefix = true;
+        parse_filename = true;
     } else {
         error_setg(errp, "Can't specify 'file' and 'filename' options at the "
                    "same time");
@@ -994,7 +994,7 @@ static int bdrv_file_open(BlockDriverState *bs, const char *filename,
         }
         qdict_del(*options, "driver");
     } else if (filename) {
-        drv = bdrv_find_protocol(filename, allow_protocol_prefix);
+        drv = bdrv_find_protocol(filename, parse_filename);
         if (!drv) {
             error_setg(errp, "Unknown protocol");
         }
@@ -1010,7 +1010,7 @@ static int bdrv_file_open(BlockDriverState *bs, const char *filename,
     }
 
     /* Parse the filename and open it */
-    if (drv->bdrv_parse_filename && filename) {
+    if (drv->bdrv_parse_filename && parse_filename) {
         drv->bdrv_parse_filename(filename, *options, &local_err);
         if (local_err) {
             error_propagate(errp, local_err);

diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index 14694e176b51f71a968cf82977bbe520626ab2d7..2f79b260763b07fe3260326ab74c6ca5d37c311c 100755 (executable)
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -204,6 +204,10 @@ run_qemu -hda foo:bar
 run_qemu -drive file=foo:bar
 run_qemu -drive file.filename=foo:bar
 
+run_qemu -hda "file:$TEST_IMG"
+run_qemu -drive file="file:$TEST_IMG"
+run_qemu -drive file.filename="file:$TEST_IMG"
+
 echo
 echo === Snapshot mode ===
 echo

diff --git a/tests/qemu-iotests/051.out b/tests/qemu-iotests/051.out
index f5e33ff395d2d06c0267ffb059b45b14e25dc1f4..671ac5f03d82f3946114807a7ff9fe38d1cdd2f6 100644 (file)
--- a/tests/qemu-iotests/051.out
+++ b/tests/qemu-iotests/051.out
@@ -275,6 +275,17 @@ QEMU_PROG: -drive file=foo:bar: could not open disk image foo:bar: Unknown proto
 Testing: -drive file.filename=foo:bar
 QEMU_PROG: -drive file.filename=foo:bar: could not open disk image ide0-hd0: Could not open 'foo:bar': No such file or directory
 
+Testing: -hda file:TEST_DIR/t.qcow2
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) q\e[K\e[Dqu\e[K\e[D\e[Dqui\e[K\e[D\e[D\e[Dquit\e[K
+
+Testing: -drive file=file:TEST_DIR/t.qcow2
+QEMU X.Y.Z monitor - type 'help' for more information
+(qemu) q\e[K\e[Dqu\e[K\e[D\e[Dqui\e[K\e[D\e[D\e[Dquit\e[K
+
+Testing: -drive file.filename=file:TEST_DIR/t.qcow2
+QEMU_PROG: -drive file.filename=file:TEST_DIR/t.qcow2: could not open disk image ide0-hd0: Could not open 'file:TEST_DIR/t.qcow2': No such file or directory
+
 
 === Snapshot mode ===