[PATCH] vmdk: allow specification of tools version

["Thomas Weißschuh" <thomas.weissschuh.ext@zeiss.com>]

VMDK files support an attribute that represents the version of the guest
tools that are installed on the disk.
This attribute is used by vSphere before a machine has been started to
determine if the VM has the guest tools installed.
This is important when configuring "Operating system customizations" in
vSphere, as it checks for the presence of the guest tools before
allowing those customizations.
Thus when the VM has not yet booted normally it would be impossible to
customize it, therefore preventing a customized first-boot.

The attribute should not hurt on disks that do not have the guest tools
installed and indeed the VMware tools also unconditionally add this
attribute.
(Defaulting to the value "2147483647", as is done in this patch)

Signed-off-by: Thomas Weißschuh <thomas.weissschuh.ext@zeiss.com>
---
 block/vmdk.c         | 24 ++++++++++++++++++++----
 qapi/block-core.json |  2 ++
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/block/vmdk.c b/block/vmdk.c
index 4499f136bd..93ef6426b0 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -60,6 +60,7 @@
 #define VMDK_ZEROED  (-3)
 
 #define BLOCK_OPT_ZEROED_GRAIN "zeroed_grain"
+#define BLOCK_OPT_TOOLSVERSION "toolsversion"
 
 typedef struct {
     uint32_t version;
@@ -2344,6 +2345,7 @@ static int coroutine_fn vmdk_co_do_create(int64_t size,
                                           BlockdevVmdkAdapterType adapter_type,
                                           const char *backing_file,
                                           const char *hw_version,
+                                          const char *toolsversion,
                                           bool compat6,
                                           bool zeroed_grain,
                                           vmdk_create_extent_fn extent_fn,
@@ -2384,7 +2386,8 @@ static int coroutine_fn vmdk_co_do_create(int64_t size,
         "ddb.geometry.cylinders = \"%" PRId64 "\"\n"
         "ddb.geometry.heads = \"%" PRIu32 "\"\n"
         "ddb.geometry.sectors = \"63\"\n"
-        "ddb.adapterType = \"%s\"\n";
+        "ddb.adapterType = \"%s\"\n"
+        "ddb.toolsVersion = \"%s\"\n";
 
     ext_desc_lines = g_string_new(NULL);
 
@@ -2401,6 +2404,9 @@ static int coroutine_fn vmdk_co_do_create(int64_t size,
     if (!hw_version) {
         hw_version = "4";
     }
+    if (!toolsversion) {
+        toolsversion = "2147483647";
+    }
 
     if (adapter_type != BLOCKDEV_VMDK_ADAPTER_TYPE_IDE) {
         /* that's the number of heads with which vmware operates when
@@ -2525,7 +2531,8 @@ static int coroutine_fn vmdk_co_do_create(int64_t size,
                            size /
                                (int64_t)(63 * number_heads * BDRV_SECTOR_SIZE),
                            number_heads,
-                           BlockdevVmdkAdapterType_str(adapter_type));
+                           BlockdevVmdkAdapterType_str(adapter_type),
+                           toolsversion);
     desc_len = strlen(desc);
     /* the descriptor offset = 0x200 */
     if (!split && !flat) {
@@ -2617,6 +2624,7 @@ static int coroutine_fn vmdk_co_create_opts(BlockDriver *drv,
     BlockdevVmdkAdapterType adapter_type_enum;
     char *backing_file = NULL;
     char *hw_version = NULL;
+    char *toolsversion = NULL;
     char *fmt = NULL;
     BlockdevVmdkSubformat subformat;
     int ret = 0;
@@ -2649,6 +2657,7 @@ static int coroutine_fn vmdk_co_create_opts(BlockDriver *drv,
     adapter_type = qemu_opt_get_del(opts, BLOCK_OPT_ADAPTER_TYPE);
     backing_file = qemu_opt_get_del(opts, BLOCK_OPT_BACKING_FILE);
     hw_version = qemu_opt_get_del(opts, BLOCK_OPT_HWVERSION);
+    toolsversion = qemu_opt_get_del(opts, BLOCK_OPT_TOOLSVERSION);
     compat6 = qemu_opt_get_bool_del(opts, BLOCK_OPT_COMPAT6, false);
     if (strcmp(hw_version, "undefined") == 0) {
         g_free(hw_version);
@@ -2692,14 +2701,15 @@ static int coroutine_fn vmdk_co_create_opts(BlockDriver *drv,
         .opts = opts,
     };
     ret = vmdk_co_do_create(total_size, subformat, adapter_type_enum,
-                            backing_file, hw_version, compat6, zeroed_grain,
-                            vmdk_co_create_opts_cb, &data, errp);
+                            backing_file, hw_version, toolsversion, compat6,
+                            zeroed_grain, vmdk_co_create_opts_cb, &data, errp);
 
 exit:
     g_free(backing_fmt);
     g_free(adapter_type);
     g_free(backing_file);
     g_free(hw_version);
+    g_free(toolsversion);
     g_free(fmt);
     g_free(desc);
     g_free(path);
@@ -2782,6 +2792,7 @@ static int coroutine_fn vmdk_co_create(BlockdevCreateOptions *create_options,
                             opts->adapter_type,
                             opts->backing_file,
                             opts->hwversion,
+                            opts->toolsversion,
                             false,
                             opts->zeroed_grain,
                             vmdk_co_create_cb,
@@ -3031,6 +3042,11 @@ static QemuOptsList vmdk_create_opts = {
             .help = "VMDK hardware version",
             .def_value_str = "undefined"
         },
+        {
+            .name = BLOCK_OPT_TOOLSVERSION,
+            .type = QEMU_OPT_STRING,
+            .help = "VMware guest tools version",
+        },
         {
             .name = BLOCK_OPT_SUBFMT,
             .type = QEMU_OPT_STRING,
diff --git a/qapi/block-core.json b/qapi/block-core.json
index c8ce1d9d5d..b530d4a333 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -4597,6 +4597,7 @@
 # @adapter-type: The adapter type used to fill in the descriptor. Default: ide.
 # @hwversion: Hardware version. The meaningful options are "4" or "6".
 #             Default: "4".
+# @toolsversion: VMware guest tools version.
 # @zeroed-grain: Whether to enable zeroed-grain feature for sparse subformats.
 #                Default: false.
 #
@@ -4610,6 +4611,7 @@
             '*backing-file':    'str',
             '*adapter-type':    'BlockdevVmdkAdapterType',
             '*hwversion':       'str',
+            '*toolsversion':    'str',
             '*zeroed-grain':    'bool' } }
 
 
-- 
2.17.1