New API: guestfs_inspect_get_product_variant

This returns a product variant for inspected operating systems.  In
practice this is a useful way to distinguish between consumer and
enterprise/server versions of Windows that otherwise have the same
version number.

generator/generator_actions.ml

@@ -1,5 +1,5 @@
 (* libguestfs
- * Copyright (C) 2009-2010 Red Hat Inc.
+ * Copyright (C) 2009-2011 Red Hat Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -1417,6 +1417,36 @@ L<guestfs(3)/ATTACHING TO RUNNING DAEMONS>.
    "\
 Return the current attach method.  See C<guestfs_set_attach_method>.");
 
+  ("inspect_get_product_variant", (RString "variant", [Device "root"], []), -1, [],
+   [],
+   "get product variant of inspected operating system",
+   "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns the product variant of the inspected operating
+system.
+
+For Windows guests, this returns the contents of the Registry key
+C<HKLM\\Software\\Microsoft\\Windows NT\\CurrentVersion>
+C<InstallationType> which is usually a string such as
+C<Client> or C<Server> (other values are possible).  This
+can be used to distinguish consumer and enterprise versions
+of Windows that have the same version number (for example,
+Windows 7 and Windows 2008 Server are both version 6.1,
+but the former is C<Client> and the latter is C<Server>).
+
+For enterprise Linux guests, in future we intend this to return
+the product variant such as C<Desktop>, C<Server> and so on.  But
+this is not implemented at present.
+
+If the product variant could not be determined, then the
+string C<unknown> is returned.
+
+Please read L<guestfs(3)/INSPECTION> for more details.
+See also C<guestfs_inspect_get_product_name>,
+C<guestfs_inspect_get_major_version>.");
+
 ]
 
 (* daemon_functions are any functions which cause some action

images/guest-aux/windows-software.reg

@@ -5,6 +5,7 @@
 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
 "ProductName"=str(1):"Microsoft Windows 7 Phony Edition"
 "CurrentVersion"=str(1):"6.1"
+"InstallationType"=str(1):"Client"
 
 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows]
 

inspector/example-windows.xml

@@ -6,9 +6,11 @@
     <arch>i386</arch>
     <distro>windows</distro>
     <product_name>Microsoft Windows 7 Phony Edition</product_name>
+    <product_variant>Client</product_variant>
     <major_version>6</major_version>
     <minor_version>1</minor_version>
     <windows_systemroot>/Windows</windows_systemroot>
+    <format>installed</format>
     <mountpoints>
       <mountpoint dev="/dev/sda2">/</mountpoint>
     </mountpoints>

inspector/virt-inspector.c

@@ -1,5 +1,5 @@
 /* virt-inspector
- * Copyright (C) 2010 Red Hat Inc.
+ * Copyright (C) 2010-2011 Red Hat Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -373,6 +373,13 @@ output_root (xmlTextWriterPtr xo, char *root)
       xmlTextWriterWriteElement (xo, BAD_CAST "product_name", BAD_CAST str));
   free (str);
 
+  str = guestfs_inspect_get_product_variant (g, root);
+  if (!str) exit (EXIT_FAILURE);
+  if (STRNEQ (str, "unknown"))
+    XMLERROR (-1,
+      xmlTextWriterWriteElement (xo, BAD_CAST "product_variant", BAD_CAST str));
+  free (str);
+
   i = guestfs_inspect_get_major_version (g, root);
   snprintf (buf, sizeof buf, "%d", i);
   XMLERROR (-1,

inspector/virt-inspector.pod

@@ -165,6 +165,7 @@ describe the operating system, its architecture, the descriptive
      <arch>i386</arch>
      <distro>windows</distro>
      <product_name>Windows 7 Enterprise</product_name>
+     <product_variant>Client</product_variant>
      <major_version>6</major_version>
      <minor_version>1</minor_version>
      <windows_systemroot>/Windows</windows_systemroot>
@@ -317,7 +318,7 @@ Matthew Booth L<mbooth@redhat.com>
 
 =head1 COPYRIGHT
 
-Copyright (C) 2010 Red Hat Inc.
+Copyright (C) 2010-2011 Red Hat Inc.
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by

inspector/virt-inspector.rng

@@ -33,6 +33,7 @@
             <optional><element name="arch"><text/></element></optional>
             <optional><element name="distro"><text/></element></optional>
             <optional><element name="product_name"><text/></element></optional>
+            <optional><element name="product_variant"><text/></element></optional>
             <element name="major_version"><text/></element>
             <element name="minor_version"><text/></element>
             <optional><element name="windows_systemroot"><text/></element></optional>

src/guestfs-internal.h

@@ -244,6 +244,7 @@ struct inspect_fs {
   enum inspect_os_package_format package_format;
   enum inspect_os_package_management package_management;
   char *product_name;
+  char *product_variant;
   int major_version;
   int minor_version;
   char *arch;

src/inspect.c

@@ -1558,6 +1558,14 @@ check_windows_software_registry (guestfs_h *g, struct inspect_fs *fs)
 
       free (version);
     }
+    else if (STRCASEEQ (key, "InstallationType")) {
+      fs->product_variant = hivex_value_string (h, values[i]);
+      if (!fs->product_variant) {
+        perrorf (g, "hivex_value_string");
+        free (key);
+        goto out;
+      }
+    }
 
     free (key);
   }
@@ -1965,6 +1973,16 @@ guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
   return safe_strdup (g, fs->product_name ? : "unknown");
 }
 
+char *
+guestfs__inspect_get_product_variant (guestfs_h *g, const char *root)
+{
+  struct inspect_fs *fs = search_for_root (g, root);
+  if (!fs)
+    return NULL;
+
+  return safe_strdup (g, fs->product_variant ? : "unknown");
+}
+
 char *
 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
 {
@@ -2849,6 +2867,12 @@ guestfs__inspect_get_product_name (guestfs_h *g, const char *root)
   NOT_IMPL(NULL);
 }
 
+char *
+guestfs__inspect_get_product_variant (guestfs_h *g, const char *root)
+{
+  NOT_IMPL(NULL);
+}
+
 char *
 guestfs__inspect_get_windows_systemroot (guestfs_h *g, const char *root)
 {
@@ -2924,6 +2948,7 @@ guestfs___free_inspect_info (guestfs_h *g)
   for (i = 0; i < g->nr_fses; ++i) {
     free (g->fses[i].device);
     free (g->fses[i].product_name);
+    free (g->fses[i].product_variant);
     free (g->fses[i].arch);
     free (g->fses[i].hostname);
     free (g->fses[i].windows_systemroot);