Blob Blame History Raw
diff --git a/configure.ac b/configure.ac
index 20370ae..9e4272e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -235,6 +235,14 @@ AC_ARG_ENABLE(
    [enable_tests="$enableval"],
    [enable_tests="auto"])
 
+AC_ARG_ENABLE(
+   resolutionkms,
+   AS_HELP_STRING(
+      [--enable-resolutionkms],
+      [build the linux / unix resolutionkms module.]),
+   [],
+   [enable_resolutionkms="auto"])
+
 AM_INIT_AUTOMAKE
 
 ###
@@ -792,6 +800,7 @@ AC_CHECK_FUNCS(
       [VIX_LIBADD="$VIX_LIBADD -ldl"
        LIBVMTOOLS_LIBADD="$LIBVMTOOLS_LIBADD -ldl"
        VGAUTH_LIBADD="$VGAUTH_LIBADD -ldl"
+       RESOLUTIONSET_LIBADD="$RESOLUTIONSET_LIBADD -ldl"
       ],
       [AC_MSG_ERROR(
          [dlopen was not found, but is required for open-vm-tools to function properly. Please contact your OS vendor.])])])
@@ -1265,6 +1274,15 @@ if test "$os" = "linux"; then
       MODULES="$MODULES vmblock vmsync"
    fi
    buildHgfsmounter=yes
+   if test "x$enable_resolutionkms" != "xno"; then
+      PKG_CHECK_MODULES(
+         [LIBUDEV],
+         libdrm libudev,
+         [LIBUDEV_CFLAGS="$LIBUDEV_CFLAGS -DHAVE_LIBUDEV"],
+         [AC_MSG_WARN(
+	    [Missing libdrm or libudev. The resolutionKMS plugin will search for them at run-time.])])
+      enable_resolutionkms="yes"
+   fi
 fi
 
 if test "$os" = "freebsd" || test "$os" = "kfreebsd-gnu"; then
@@ -1352,6 +1370,14 @@ else
     UDEVRULESDIR=""
 fi
 
+if test "x$enable_resolutionkms" = "xauto"; then
+   enable_resolutionkms="no"
+fi
+
+if test "x$enable_resolutionkms" = "xyes"; then
+   CPPFLAGS="$CPPFLAGS -DENABLE_RESOLUTIONKMS"
+fi
+
 AM_CONDITIONAL(BUILD_HGFSMOUNTER, test "$buildHgfsmounter" = "yes")
 AM_CONDITIONAL(LINUX, test "$os" = "linux")
 AM_CONDITIONAL(SOLARIS, test "$os" = "solaris")
@@ -1382,6 +1408,7 @@ AM_CONDITIONAL(ENABLE_CAF, test "$enable_caf" = "yes")
 AM_CONDITIONAL(HAVE_VSOCK, test "$os" = "linux")
 AM_CONDITIONAL(HAVE_MKDTEMP, test "$have_mkdtemp" = "yes")
 AM_CONDITIONAL(HAVE_UDEV, test "$have_udev" = "yes")
+AM_CONDITIONAL(ENABLE_RESOLUTIONKMS, test "x$enable_resolutionkms" = "xyes")
 
 if test "$have_xsm" != "yes"; then
 AC_DEFINE([NO_XSM], 1, [])
@@ -1492,6 +1519,7 @@ AC_SUBST([LIB_AUTH_CPPFLAGS])
 AC_SUBST([LIB_IMPERSONATE_CPPFLAGS])
 AC_SUBST([LIB_USER_CPPFLAGS])
 AC_SUBST([LIBVMTOOLS_LIBADD])
+AC_SUBST([RESOLUTIONSET_LIBADD])
 
 ### Program substs
 
@@ -1564,6 +1592,7 @@ AC_CONFIG_FILES([                      \
    services/plugins/hgfsServer/Makefile \
    services/plugins/powerOps/Makefile  \
    services/plugins/resolutionSet/Makefile \
+   services/plugins/resolutionKMS/Makefile \
    services/plugins/timeSync/Makefile  \
    services/plugins/vix/Makefile       \
    services/plugins/vmbackup/Makefile  \
diff --git a/services/plugins/Makefile.am b/services/plugins/Makefile.am
index 5d75718..5deb281 100644
--- a/services/plugins/Makefile.am
+++ b/services/plugins/Makefile.am
@@ -34,6 +34,14 @@ endif
 if HAVE_X11
    SUBDIRS += resolutionSet
 endif
+if ENABLE_RESOLUTIONKMS
+if !HAVE_X11
+# resolutionKMS needs resolutionCommon, which lives in
+# the resolutionSet sub directory
+   SUBDIRS += resolutionSet
+endif
+SUBDIRS += resolutionKMS
+endif
 SUBDIRS += timeSync
 SUBDIRS += vix
 SUBDIRS += vmbackup
diff --git a/services/plugins/resolutionKMS/COPYING b/services/plugins/resolutionKMS/COPYING
new file mode 100644
index 0000000..9c6a6cc
--- /dev/null
+++ b/services/plugins/resolutionKMS/COPYING
@@ -0,0 +1,502 @@
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
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+
+[This is the first released version of the Lesser GPL.  It also counts
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+
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+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the
+  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+  <signature of Ty Coon>, 1 April 1990
+  Ty Coon, President of Vice
+
+That's all there is to it!
diff --git a/services/plugins/resolutionKMS/Makefile.am b/services/plugins/resolutionKMS/Makefile.am
new file mode 100644
index 0000000..4503dc6
--- /dev/null
+++ b/services/plugins/resolutionKMS/Makefile.am
@@ -0,0 +1,37 @@
+################################################################################
+### Copyright (C) 2009-2016 VMware, Inc.  All rights reserved.
+###
+### This program is free software; you can redistribute it and/or modify
+### it under the terms of version 2 of the GNU General Public License as
+### published by the Free Software Foundation.
+###
+### This program is distributed in the hope that it will be useful,
+### but WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+### GNU General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with this program; if not, write to the Free Software
+### Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+################################################################################
+
+plugindir = @VMSVC_PLUGIN_INSTALLDIR@
+plugin_LTLIBRARIES = libresolutionKMS.la
+
+libresolutionKMS_la_CPPFLAGS =
+libresolutionKMS_la_CPPFLAGS += @LIBUDEV_CFLAGS@
+libresolutionKMS_la_CPPFLAGS += @PLUGIN_CPPFLAGS@
+
+libresolutionKMS_la_LDFLAGS =
+libresolutionKMS_la_LDFLAGS += @PLUGIN_LDFLAGS@
+
+libresolutionKMS_la_LIBADD =
+libresolutionKMS_la_LIBADD += @VMTOOLS_LIBS@
+libresolutionKMS_la_LIBADD += @RESOLUTIONSET_LIBADD@
+libresolutionKMS_la_LIBADD += $(top_builddir)/services/plugins/resolutionSet/libresolutionCommon.la
+
+libresolutionKMS_la_SOURCES =
+libresolutionKMS_la_SOURCES += resolutionKMS.c
+
+libresolutionKMS_la_DEPENDENCIES =
+libresolutionKMS_la_DEPENDENCIES += $(top_builddir)/services/plugins/resolutionSet/libresolutionCommon.la
diff --git a/services/plugins/resolutionKMS/resolutionKMS.c b/services/plugins/resolutionKMS/resolutionKMS.c
new file mode 100644
index 0000000..6aff018
--- /dev/null
+++ b/services/plugins/resolutionKMS/resolutionKMS.c
@@ -0,0 +1,465 @@
+/*********************************************************
+ * Copyright (C) 2008-2016 VMware, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation version 2.1 and no later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the Lesser GNU General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA.
+ *
+ *********************************************************/
+
+/**
+ * @file resolutionKMS.c --
+ *
+ * Plugin to communicate GUI topology to the vmwgfx drm device through a
+ * control node. This file is a modified version of resolutionSet.c
+ */
+
+#define G_LOG_DOMAIN "resolutionKMS"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "vmware.h"
+#include "debug.h"
+#include "rpcout.h"
+#include "str.h"
+#include "strutil.h"
+
+#include "xdrutil.h"
+#include "vmware/guestrpc/tclodefs.h"
+#include "vmware/tools/plugin.h"
+#include "vmware/tools/utils.h"
+#include "../resolutionSet/resolutionCommon.h"
+#include "../resolutionSet/resolutionDL.h"
+
+#include "vm_version.h"
+#include "embed_version.h"
+#include "vmtoolsd_version.h"
+VM_EMBED_VERSION(VMTOOLSD_VERSION_STRING);
+
+/*
+ * The maximum number of capabilities we can set.
+ *
+ * See ResolutionSetCapabilities().
+ */
+#define RESOLUTION_SET_CAPABILITIES_MAX 5
+
+/*
+ * Global information about the communication state
+ */
+typedef struct {
+   gboolean initialized;       // Whether the plugin is already initialized.
+   int fd;                     // File descriptor to the DRM device.
+} KMSInfoType;
+
+/*
+ * Internal global variables
+ */
+KMSInfoType kmsInfo;
+
+/*
+ * The name of the RPC channel we're using, e.g. TOOLS_DAEMON_NAME. Used by
+ * ResolutionSet_SetServerCapability() to determine which capability to set.
+ */
+static const char *rpcChannelName = NULL;
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResolutionWriteToKernel --
+ *
+ *     Write GUI topology info to the drm device.
+ *
+ * Results:
+ *     TRUE on success, FALSE on failure.
+ *
+ * Side effects:
+ *     The drm device will send an uevent and expose the new
+ *     topology.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static gboolean
+ResolutionWriteToKernel(const struct drm_vmw_rect *rects, // IN: Screen rects
+			unsigned int num_rects)           // IN: Number of
+                                                          // rects
+{
+   struct drm_vmw_update_layout_arg arg;
+   int ret;
+
+   memset(&arg, 0, sizeof arg);
+   arg.num_outputs = num_rects;
+   arg.rects = (unsigned long) rects;
+
+   ret = drmCommandWrite(kmsInfo.fd, DRM_VMW_UPDATE_LAYOUT, &arg, sizeof arg);
+   if (ret < 0) {
+      g_debug("%s: FAIL! Resolutionset write to kernel failed: %d\n",
+              __FUNCTION__, ret);
+      return FALSE;
+   }
+
+   return TRUE;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResolutionResolutionSetCB --
+ *
+ *     Handler for TCLO 'Resolution_Set'.
+ *     Routine unmarshals RPC arguments and passes over to back-end
+ *     ResolutionWriteToKernel().
+ *
+ * Results:
+ *     TRUE if we can reply, FALSE otherwise.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static gboolean
+ResolutionResolutionSetCB(RpcInData *data) // IN: The RPC data
+{
+   struct drm_vmw_rect rect;
+   unsigned int index = 0;
+   gboolean retval = FALSE;
+
+   if (!kmsInfo.initialized) {
+      g_debug("%s: FAIL! Request for resolution set but plugin is not initialized\n",
+              __FUNCTION__);
+      return RPCIN_SETRETVALS(data, "Invalid guest state: resolution set not initialized", FALSE);
+   }
+
+   rect.x = 0;
+   rect.y = 0;
+
+   /* parse the width and height */
+   if (!StrUtil_GetNextUintToken(&rect.w, &index, data->args, " ")) {
+      goto invalid_arguments;
+   }
+   if (!StrUtil_GetNextUintToken(&rect.h, &index, data->args, "")) {
+      goto invalid_arguments;
+   }
+
+   retval = ResolutionWriteToKernel(&rect, 1);
+
+invalid_arguments:
+   return RPCIN_SETRETVALS(data, retval ? "" : "Invalid arguments", retval);
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResolutionDisplayTopologySetCB --
+ *
+ *     Handler for TCLO 'DisplayTopology_Set'.
+ *     Routine unmarshals RPC arguments and passes over to back-end
+ *     ResolutionWriteToKernel().
+ *
+ * Results:
+ *     TRUE if we can reply, FALSE otherwise.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static gboolean
+ResolutionDisplayTopologySetCB(RpcInData *data)
+{
+   struct drm_vmw_rect *rects = NULL;
+   unsigned int count, i;
+   gboolean success = FALSE;
+   const char *p;
+
+   if (!kmsInfo.initialized) {
+      g_debug("%s: FAIL! Request for topology set but plugin is not initialized\n",
+              __FUNCTION__);
+      RPCIN_SETRETVALS(data, "Invalid guest state: topology set not initialized", FALSE);
+      goto out;
+   }
+
+   /*
+    * The argument string will look something like:
+    *   <count> [ , <x> <y> <w> <h> ] * count.
+    *
+    * e.g.
+    *    3 , 0 0 640 480 , 640 0 800 600 , 0 480 640 480
+    */
+
+   if (sscanf(data->args, "%u", &count) != 1) {
+      return RPCIN_SETRETVALS(data,
+                              "Invalid arguments. Expected \"count\"",
+                              FALSE);
+   }
+
+   rects = malloc(sizeof *rects * count);
+   if (!rects) {
+      RPCIN_SETRETVALS(data,
+                       "Failed to alloc buffer for display info",
+                       FALSE);
+      return FALSE;
+   }
+
+   for (p = data->args, i = 0; i < count; i++) {
+      p = strchr(p, ',');
+      if (!p) {
+         RPCIN_SETRETVALS(data,
+                          "Expected comma separated display list",
+                          FALSE);
+         goto out;
+      }
+      p++; /* Skip past the , */
+
+      if (sscanf(p, " %d %d %d %d ", &rects[i].x,
+                 &rects[i].y, &rects[i].w, &rects[i].h) != 4) {
+         RPCIN_SETRETVALS(data,
+                          "Expected x, y, w, h in display entry",
+                          FALSE);
+         goto out;
+      }
+   }
+
+   success = ResolutionWriteToKernel(rects, count);
+   RPCIN_SETRETVALS(data, success ? "" : "ResolutionSetTopology failed", success);
+out:
+   free(rects);
+   return success;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResolutionKMSServerCapability --
+ *
+ * Sends the tools.capability.resolution_server RPC to the VMX.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+ResolutionKMSServerCapability(RpcChannel *chan,   // IN: The RPC channel.
+                              unsigned int value) // IN: The value to send for
+                                                  // the capability bit.
+{
+   gchar *msg;
+
+   if (!rpcChannelName) {
+      g_debug("Channel name is null, RPC not sent.\n");
+      return;
+   }
+
+   msg = g_strdup_printf("tools.capability.resolution_server %s %d",
+			 rpcChannelName,
+			 value);
+   if (!RpcChannel_Send(chan, msg, strlen(msg), NULL, NULL)) {
+      g_warning("%s: Unable to set tools.capability.resolution_server\n",
+                __FUNCTION__);
+   }
+   g_free(msg);
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResolutionKMSShutdown --
+ *
+ * Cleans up internal data on shutdown.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static void
+ResolutionKMSShutdown(gpointer src,     // IN: Unused.
+                      ToolsAppCtx *ctx, // IN: The app context.
+                      gpointer data)    // IN: Unused.
+{
+   if (kmsInfo.initialized && ctx && ctx->rpc && ctx->isVMware) {
+      ResolutionKMSServerCapability(ctx->rpc, 0);
+   }
+
+   if (kmsInfo.initialized) {
+      resolutionDRMClose(kmsInfo.fd);
+      kmsInfo.initialized = FALSE;
+   }
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ResolutionKMSCapabilities --
+ *
+ * Cleans up internal data on shutdown.
+ *
+ * Results:
+ *     An array of capabilities
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+static GArray *
+ResolutionKMSCapabilities(gpointer src,     // IN: The source object.
+                          ToolsAppCtx *ctx, // IN: The app context.
+                          gboolean set,     // IN: Whether setting or unsetting
+			                    // the capability.
+                          gpointer data)    // Unused.
+{
+   /* The array of capabilities to return to the tools service. */
+   ToolsAppCapability capabilityArray[RESOLUTION_SET_CAPABILITIES_MAX];
+
+   /* The next unused entry in the capabilities array. */
+   unsigned int capabilityCount = 0;
+
+   g_debug("%s: enter\n", __FUNCTION__);
+
+   /*
+    * We must register display_topology_set before resolution_set to avoid
+    * a race condition in the host. See bug 472343.
+    */
+
+   /*
+    * We use a value of '2' here because, for historical reasons, the
+    * Workstation/Fusion UI will treat a value of 1 for this capability
+    * as unsupported. See bug 149541.
+    */
+   capabilityArray[capabilityCount].type  = TOOLS_CAP_OLD;
+   capabilityArray[capabilityCount].name  = "display_topology_set";
+   capabilityArray[capabilityCount].index = 0;
+   capabilityArray[capabilityCount].value = set ? 2 : 0;
+   capabilityCount++;
+
+   capabilityArray[capabilityCount].type  = TOOLS_CAP_OLD;
+   capabilityArray[capabilityCount].name  = "display_global_offset";
+   capabilityArray[capabilityCount].index = 0;
+   capabilityArray[capabilityCount].value = set ? 1 : 0;
+   capabilityCount++;
+
+   capabilityArray[capabilityCount].type  = TOOLS_CAP_OLD;
+   capabilityArray[capabilityCount].name  = "resolution_set";
+   capabilityArray[capabilityCount].index = 0;
+   capabilityArray[capabilityCount].value = set ? 1 : 0;
+   capabilityCount++;
+
+      /*
+       * Send the resolution_server RPC to the VMX.
+       *
+       * XXX: We need to send this ourselves, instead of including it in the
+       *      capability array, because the resolution_server RPC includes the
+       *      name of the RPC channel that the VMX should use when sending
+       *      resolution set RPCs as an argument.
+       */
+
+   if (kmsInfo.initialized && ctx && ctx->rpc && ctx->isVMware) {
+      ResolutionKMSServerCapability(ctx->rpc, set ? 1:0);
+   }
+
+   ASSERT(capabilityCount <= RESOLUTION_SET_CAPABILITIES_MAX);
+
+   return VMTools_WrapArray(capabilityArray,
+                            sizeof *capabilityArray,
+                            capabilityCount);
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * ToolsOnLoad --
+ *
+ * Plugin entry point
+ *
+ * Results:
+ *     The registration data.
+ *
+ * Side effects:
+ *     Initializes internal plugin state.
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+TOOLS_MODULE_EXPORT ToolsPluginData *
+ToolsOnLoad(ToolsAppCtx *ctx)
+{
+   RpcChannelCallback rpcs[] = {
+      { "Resolution_Set",               &ResolutionResolutionSetCB },
+      { "DisplayTopology_Set",          &ResolutionDisplayTopologySetCB },
+   };
+
+   static ToolsPluginData regData = {
+      "resolutionKMS",
+      NULL,
+      NULL
+   };
+
+   ToolsPluginSignalCb sigs[] = {
+      { TOOLS_CORE_SIG_CAPABILITIES, ResolutionKMSCapabilities, &regData },
+      { TOOLS_CORE_SIG_SHUTDOWN, ResolutionKMSShutdown, &regData }
+   };
+
+   ToolsAppReg regs[] = {
+      { TOOLS_APP_GUESTRPC, NULL },
+      { TOOLS_APP_SIGNALS, VMTools_WrapArray(sigs, sizeof *sigs, ARRAYSIZE(sigs)) }
+   };
+
+   /*
+    * If we aren't running in a VM (e.g., running in bootcamp natively on
+    * a Mac), then just return NULL.
+    */
+   if (!ctx->isVMware) {
+      return NULL;
+   }
+
+   kmsInfo.fd = resolutionCheckForKMS(ctx);
+   if (kmsInfo.fd < 0) {
+      return NULL;
+   }
+   kmsInfo.initialized = TRUE;
+
+   /*
+    * Save the RPC channel name from the ToolsAppCtx so that we can use it later
+    * in calls to ResolutionSetServerCapability().
+    */
+
+   if (strcmp(ctx->name, VMTOOLS_GUEST_SERVICE) == 0) {
+      rpcChannelName = TOOLS_DAEMON_NAME;
+   } else if (strcmp(ctx->name, VMTOOLS_USER_SERVICE) == 0) {
+      rpcChannelName = TOOLS_DND_NAME;
+   } else {
+      NOT_REACHED();
+   }
+
+   regs[0].data = VMTools_WrapArray(rpcs, sizeof *rpcs, ARRAYSIZE(rpcs));
+   regData.regs = VMTools_WrapArray(regs, sizeof *regs, ARRAYSIZE(regs));
+   return &regData;
+}
diff --git a/services/plugins/resolutionSet/Makefile.am b/services/plugins/resolutionSet/Makefile.am
index 3d8dbc4..b3cf81e 100644
--- a/services/plugins/resolutionSet/Makefile.am
+++ b/services/plugins/resolutionSet/Makefile.am
@@ -16,6 +16,9 @@
 ################################################################################
 
 plugindir = @VMUSR_PLUGIN_INSTALLDIR@
+noinst_LTLIBRARIES = libresolutionCommon.la
+
+if HAVE_X11
 plugin_LTLIBRARIES = libresolutionSet.la
 
 libresolutionSet_la_CPPFLAGS =
@@ -30,10 +33,27 @@ libresolutionSet_la_LIBADD =
 libresolutionSet_la_LIBADD += @COMMON_XLIBS@
 libresolutionSet_la_LIBADD += @GTK_LIBS@
 libresolutionSet_la_LIBADD += @VMTOOLS_LIBS@
+libresolutionSet_la_LIBADD += @RESOLUTIONSET_LIBADD@
+libresolutionSet_la_LIBADD += libresolutionCommon.la
 
 libresolutionSet_la_SOURCES =
 libresolutionSet_la_SOURCES += libvmwarectrl.c
 libresolutionSet_la_SOURCES += resolutionSet.c
 libresolutionSet_la_SOURCES += resolutionX11.c
 libresolutionSet_la_SOURCES += resolutionRandR12.c
+endif
+
+libresolutionCommon_la_CPPFLAGS =
+libresolutionCommon_la_CPPFLAGS += @PLUGIN_CPPFLAGS@
+libresolutionCommon_la_CPPFLAGS += @LIBUDEV_CFLAGS@
+
+libresolutionCommon_la_SOURCES =
+libresolutionCommon_la_SOURCES += resolutionCommon.c
+libresolutionCommon_la_SOURCES += resolutionCommon.h
+libresolutionCommon_la_SOURCES += resolutionDL.c
+libresolutionCommon_la_SOURCES += resolutionDL.h
+libresolutionCommon_la_LDFLAGS =
+libresolutionCommon_la_LDFLAGS += @PLUGIN_LDFLAGS@
 
+libresolutionCommon_la_LIBADD =
+libresolutionCommon_la_LIBADD += @LIBUDEV_LIBS@
diff --git a/services/plugins/resolutionSet/resolutionCommon.c b/services/plugins/resolutionSet/resolutionCommon.c
new file mode 100644
index 0000000..9a076e3
--- /dev/null
+++ b/services/plugins/resolutionSet/resolutionCommon.c
@@ -0,0 +1,430 @@
+/*********************************************************
+ * Copyright (C) 2016 VMware, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation version 2.1 and no later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the Lesser GNU General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA.
+ *
+ *********************************************************/
+/* Authors:
+ * Thomas Hellstrom <thellstrom@vmware.com>
+ */
+
+#define G_LOG_DOMAIN "resolutionCommon"
+
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include "resolutionDL.h"
+#include "vmware/tools/plugin.h"
+#include "vmware/tools/utils.h"
+#include "resolutionCommon.h"
+
+#ifdef ENABLE_RESOLUTIONKMS
+
+/* The DRM device we are looking for */
+#define RESOLUTION_VENDOR     "0x15ad"
+#define RESOLUTION_DEVICE     "0x0405"
+
+/* Required DRM version for resolutionKMS */
+#define RESOLUTION_DRM_MAJOR  2
+#define RESOLUTION_DRM_MINOR  12
+
+/* Required Xorg driver version for resolutionKMS default on */
+#define RESOLUTION_XORG_MAJOR 13
+#define RESOLUTION_XORG_MINOR 2
+
+/* Recognition token for Xorg driver version scanner */
+#define RESOLUTION_XORG_VERSTRING "version="
+
+/*
+ * Xorg driver file names to scan for. Only the first found will be
+ * scanned for version info.
+ */
+static const char *driverNames[]= {
+  "/usr/lib64/xorg/modules/drivers/vmware_drv.so",
+  "/usr/lib/xorg/modules/drivers/vmware_drv.so"
+};
+
+static const int numDriverNames = 2;
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionOpenDRM --
+ *
+ *     Opens a file descriptor on the indicated node to the first SVGA2 device.
+ *
+ * Results:
+ *     Returns a positive file descriptor on success. Otherwise returns -1.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+static int
+resolutionOpenDRM(const char *node) // IN: Device node base name.
+{
+    struct udev *udev;
+    struct udev_enumerate *enumerate;
+    struct udev_list_entry *devices, *devListEntry;
+    struct udev_device *dev;
+    int fd = -1;
+    const char *devNode = NULL;
+
+    udev = udev_new();
+    if (!udev)
+	return -1;
+
+    /*
+     * Udev error return codes that are not caught immediately are
+     * typically caught in the input argument check in the udev
+     * function calls following the failing call!
+     */
+    enumerate = udev_enumerate_new(udev);
+    if (udev_enumerate_add_match_subsystem(enumerate, "drm"))
+	goto outErr;
+    if (udev_enumerate_add_match_property(enumerate, "DEVTYPE", "drm_minor"))
+	goto outErr;
+    if (udev_enumerate_scan_devices(enumerate))
+	goto outErr;
+
+    devices = udev_enumerate_get_list_entry(enumerate);
+    udev_list_entry_foreach(devListEntry, devices) {
+	const char *path, *vendor, *device;
+	struct udev_device *parent;
+
+	path = udev_list_entry_get_name(devListEntry);
+	if (!path)
+	    continue;
+	if (!strstr(path, node))
+	    continue;
+
+	dev = udev_device_new_from_syspath(udev, path);
+	if (!dev)
+	    goto outErr;
+
+	parent = udev_device_get_parent_with_subsystem_devtype(dev,
+							       "pci",
+							       NULL);
+	if (!parent)
+	    goto skipCheck;
+
+	vendor = udev_device_get_sysattr_value(parent, "vendor");
+	device = udev_device_get_sysattr_value(parent, "device");
+	if (!vendor || !device)
+	    goto skipCheck;
+
+	if (strcmp(vendor, RESOLUTION_VENDOR) ||
+	    strcmp(device, RESOLUTION_DEVICE))
+	    goto skipCheck;
+
+	devNode = udev_device_get_devnode(dev);
+	if (!devNode)
+	    goto outFound;
+
+	fd = open(devNode, O_RDWR);
+	udev_device_unref(dev);
+	break;
+
+skipCheck:
+	udev_device_unref(dev);
+    }
+
+    udev_enumerate_unref(enumerate);
+    udev_unref(udev);
+
+    return fd;
+
+  outFound:
+    udev_device_unref(dev);
+  outErr:
+    udev_enumerate_unref(enumerate);
+    udev_unref(udev);
+
+    return -1;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionDRMCheckVersion --
+ *
+ *     Check that the drm version supports GUI topology communication.
+ *
+ *     Checks that the DRM device supports setting GUI topology from the
+ *     control node, and also that the topology is communicated on the
+ *     modesetting connectors.
+ *
+ * Results:
+ *     0 if DRM device is usable for communicating GUI topology.
+ *     -1 otherwise.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+static int
+resolutionDRMCheckVersion(int fd)  // IN: An open DRM file descriptor.
+{
+    drmVersionPtr ver = drmGetVersion(fd);
+
+    if (!ver) {
+	g_debug("%s: Failed to get DRM version.\n", __func__);
+	return -1;
+    }
+
+    if (ver->version_major != RESOLUTION_DRM_MAJOR ||
+	ver->version_minor < RESOLUTION_DRM_MINOR) {
+       g_debug("%s: Insufficient DRM version %d.%d for resolutionKMS.\n",
+               __func__, ver->version_major, ver->version_minor);
+       drmFreeVersion(ver);
+       return -1;
+    }
+
+    drmFreeVersion(ver);
+    return 0;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionDRMRPrimaryCheckOpen --
+ *
+ *     First tries to open a render node to DRM, and if that fails opens a
+ *     primary node, and drops master. Then checks that drm supports GUI
+ *     topology communication.
+ *
+ * Results:
+ *     If succesful returns a positive open file descriptor. Otherwise
+ *     returns -1.
+ *
+ * Side effects:
+ *      May temporarily become drm master if render nodes are not available,
+ *      and thus race with the X server.
+ *
+ *-----------------------------------------------------------------------------
+ */
+static int
+resolutionDRMRPrimaryCheckOpen(void)
+{
+    int fd = -1;
+
+    fd = resolutionOpenDRM("renderD");
+    if (fd < 0) {
+	g_debug("%s: Failed to open DRM render node.\n", __func__);
+	fd = resolutionOpenDRM("card");
+	if (fd >= 0)
+	    (void) drmDropMaster(fd);
+    }
+    if (fd < 0) {
+	g_debug("%s: Failed to open DRM card node.\n", __func__);
+	goto outErr;
+    }
+
+    if (!resolutionDRMCheckVersion(fd)) {
+	return fd;
+    }
+
+    close(fd);
+  outErr:
+    return -1;
+}
+
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionCheckForKMS --
+ *
+ *     Checks whether the vmwgfx DRM is present and supports exposing
+ *     layout information through connector properties and preferred modes.
+ *
+ * Results:
+ *     If succesful returns a positive number representing an open file
+ *     descriptor to the node indicated by the control argument. If
+ *     unsuccessful returns -1.
+ *
+ * Side effects:
+ *     Opens a file to DRM. The file descriptor should be closed with
+ *     resolutionDRMClose() when needed.
+ *
+ *-----------------------------------------------------------------------------
+ */
+int
+resolutionCheckForKMS(ToolsAppCtx *ctx)  // IN: The ToolsAppCtx for
+		                         // configuration db access.
+{
+    GError *err = NULL;
+    gboolean doResolutionKMS;
+    int fd;
+
+    doResolutionKMS = g_key_file_get_boolean(ctx->config, "resolutionKMS",
+					     "enable", &err);
+    if (err) {
+	/*
+	 * If there is nothing in the configuration file, require
+	 * at least Xorg driver version 13.2.0, which has the autolayout
+	 * feature, to enable resolutionKMS.
+	 */
+	int major, minor, level;
+	g_clear_error(&err);
+	doResolutionKMS = FALSE;
+	if (!resolutionXorgDriverVersion(numDriverNames, driverNames,
+					 RESOLUTION_XORG_VERSTRING, &major,
+					 &minor, &level) &&
+	    (major > RESOLUTION_XORG_MAJOR ||
+	     (major == RESOLUTION_XORG_MAJOR &&
+	      minor >= RESOLUTION_XORG_MINOR))) {
+	    doResolutionKMS = TRUE;
+	    g_debug("%s: ResolutionKMS enabled based on Xorg driver version.\n",
+		    __func__);
+	} else {
+	    g_debug("%s: ResolutionKMS disabled. (No configuration).\n",
+		__func__);
+	    doResolutionKMS = FALSE;
+	}
+    } else {
+	g_debug("%s: ResolutionKMS %s using configuration file info.\n",
+		__func__, (doResolutionKMS) ? "enabled" : "disabled");
+    }
+
+    if (!doResolutionKMS)
+	return -1;
+
+    if (resolutionDLOpen()) {
+	g_warning("%s: Failed to find needed system libraries for "
+		  "resolutionKMS.\n", __func__);
+	return -1;
+    } else {
+	g_message("%s: dlopen succeeded.\n", __func__);
+    }
+
+    fd = resolutionDRMRPrimaryCheckOpen();
+
+    if (fd < 0)
+	g_warning("%s: No system support for resolutionKMS.\n", __func__);
+    else
+	g_message("%s: System support available for resolutionKMS.\n",
+		  __func__);
+
+    return fd;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionDRMClose --
+ *
+ *     Scans for VMWare Xorg driver files and tries to determine the Xorg
+ *     driver version.
+ *
+ * Results:
+ *     If succesful returns zero and outputs the driver version in the
+ *     parameters major, minor and level. If not successful, returns -1.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+void
+resolutionDRMClose(int fd)
+{
+    close(fd);
+    resolutionDLClose();
+}
+
+#endif /* ENABLE_RESOLUTIONKMS */
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionXorgDriverVersion --
+ *
+ *     Scans for VMWare Xorg driver files and tries to determine the Xorg
+ *     driver version.
+ *
+ * Results:
+ *     If succesful returns zero and outputs the driver version in the
+ *     parameters major, minor and level. If not successful, returns -1.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+int
+resolutionXorgDriverVersion(int numPaths,               // IN: Number of strings
+			                                // in paths.
+			    const char *paths[],        // IN: Possible driver
+			                                // paths.
+			    const char versionString[], // IN: Version token.
+			    int *major,                 // OUT: Major version #
+			    int *minor,                 // OUT: Minor version #
+			    int *level)                 // OUT: Patchlevel
+                                                        // version #
+{
+   FILE *driver = NULL;
+   const char *curMatch;
+   char curFileChar;
+   int i;
+
+   g_debug("%s: Scanning for VMWare Xorg drivers.\n", __func__);
+   for(i = 0; i < numPaths; ++i) {
+       g_debug("%s: Looking for \"%s\".\n", __func__, paths[i]);
+       driver = fopen(paths[i], "r");
+       if (driver)
+	   break;
+   }
+
+   if (!driver) {
+       g_debug("%s: No driver found.\n",  __func__);
+       return -1;
+   }
+
+   g_debug("%s: Driver found. Looking for version info.\n", __func__);
+   curMatch = versionString;
+   while (*curMatch) {
+      if (feof(driver))
+	 goto outNotFound;
+
+      curFileChar = fgetc(driver);
+      if (curFileChar == *curMatch) {
+	 curMatch++;
+	 continue;
+      } else if (curMatch != versionString) {
+	 curMatch = versionString;
+	 (void) ungetc(curFileChar, driver);
+      }
+   }
+
+   if (fscanf(driver, "%d.%d.%d", major, minor, level) != 3)
+      goto outNotFound;
+
+   fclose(driver);
+   g_debug("%s: Version info found: %d.%d.%d\n", __func__, *major, *minor,
+	   *level);
+   return 0;
+
+ outNotFound:
+   fclose(driver);
+   g_debug("%s: No version info found.\n", __func__);
+   return -1;
+}
diff --git a/services/plugins/resolutionSet/resolutionCommon.h b/services/plugins/resolutionSet/resolutionCommon.h
new file mode 100644
index 0000000..6565190
--- /dev/null
+++ b/services/plugins/resolutionSet/resolutionCommon.h
@@ -0,0 +1,53 @@
+/*********************************************************
+ * Copyright (C) 2016 VMware, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation version 2.1 and no later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the Lesser GNU General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA.
+ *
+ *********************************************************/
+/* Authors:
+ * Thomas Hellstrom <thellstrom@vmware.com>
+ */
+
+#ifndef _RESOLUTION_COMMON_H_
+#define _RESOLUTION_COMMON_H_
+
+#define INCLUDE_ALLOW_USERLEVEL
+#define INCLUDE_ALLOW_DISTRIBUTE
+#include "includeCheck.h"
+#include "vmware/tools/plugin.h"
+#ifdef ENABLE_RESOLUTIONKMS
+
+int resolutionCheckForKMS(ToolsAppCtx *ctx);
+void resolutionDRMClose(int fd);
+
+#else
+
+static inline int resolutionCheckForKMS(ToolsAppCtx *ctx)
+{
+    return -1;
+}
+
+static inline void resolutionDRMClose(int fd) {}
+
+#endif /* !ENABLE_RESOLUTIONKMS */
+
+int
+resolutionXorgDriverVersion(int numPaths,
+			    const char *paths[],
+			    const char versionString[],
+			    int *major,
+			    int *minor,
+			    int *level);
+
+#endif /*  _RESOLUTION_COMMON_H_ */
diff --git a/services/plugins/resolutionSet/resolutionDL.c b/services/plugins/resolutionSet/resolutionDL.c
new file mode 100644
index 0000000..5ec0abb
--- /dev/null
+++ b/services/plugins/resolutionSet/resolutionDL.c
@@ -0,0 +1,206 @@
+/*********************************************************
+ * Copyright (C) 2016 VMware, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation version 2.1 and no later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the Lesser GNU General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA.
+ *
+ *********************************************************/
+/* Authors:
+ * Thomas Hellstrom <thellstrom@vmware.com>
+ */
+
+#ifdef ENABLE_RESOLUTIONKMS
+#ifndef HAVE_LIBUDEV
+
+#include "resolutionDL.h"
+#include "vmware.h"
+#include <dlfcn.h>
+#include <stddef.h>
+#include <stdlib.h>
+
+#define G_LOG_DOMAIN "resolutionCommon"
+#include "vmware/tools/plugin.h"
+#include "vmware/tools/utils.h"
+
+
+struct FuncToResolv {
+    size_t offset;
+    const char *name;
+};
+
+#define UDEV_RESOLV(_name) \
+    {.offset = offsetof(struct Udev1Interface, _name), \
+	    .name = "udev"#_name}
+
+#define LIBDRM_RESOLV(_name) \
+    {.offset = offsetof(struct Drm2Interface, _name), \
+	    .name = "drm"#_name}
+
+
+static struct FuncToResolv udev1Table[] = {
+    UDEV_RESOLV(_device_get_devnode),
+    UDEV_RESOLV(_device_get_parent_with_subsystem_devtype),
+    UDEV_RESOLV(_device_get_sysattr_value),
+    UDEV_RESOLV(_device_new_from_syspath),
+    UDEV_RESOLV(_device_unref),
+    UDEV_RESOLV(_enumerate_add_match_property),
+    UDEV_RESOLV(_enumerate_add_match_subsystem),
+    UDEV_RESOLV(_enumerate_get_list_entry),
+    UDEV_RESOLV(_enumerate_new),
+    UDEV_RESOLV(_enumerate_scan_devices),
+    UDEV_RESOLV(_enumerate_unref),
+    UDEV_RESOLV(_list_entry_get_name),
+    UDEV_RESOLV(_list_entry_get_next),
+    UDEV_RESOLV(_new),
+    UDEV_RESOLV(_unref)
+};
+
+static struct FuncToResolv drm2Table[] = {
+    LIBDRM_RESOLV(GetVersion),
+    LIBDRM_RESOLV(FreeVersion),
+    LIBDRM_RESOLV(DropMaster),
+    LIBDRM_RESOLV(CommandWrite)
+};
+
+struct Udev1Interface *udevi = NULL;
+struct Drm2Interface *drmi = NULL;
+
+static void *dlhandle;
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionDLClose --
+ *
+ *     Removes any dynamic library reference and frees any resource
+ *     allocated by resolutionDLOpen.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+void
+resolutionDLClose(void)
+{
+    if (udevi) {
+	free(udevi);
+	udevi = NULL;
+    }
+
+    if (drmi) {
+	free(drmi);
+	drmi = NULL;
+    }
+
+    if (dlhandle) {
+	dlclose(dlhandle);
+	dlhandle = NULL;
+    }
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionDLResolve --
+ *
+ *     Tries to open and resolve needed symbols of a single shared library.
+ *
+ * Results:
+ *     If succesful returns zero, otherwise returns -1.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+static int
+resolutionDLResolve(void **ptr,                        // OUT: pointer to
+		                                       // function table.
+		    size_t size,                       // IN: Size of ft.
+		    const char name[],                 // IN: Library name.
+		    const struct FuncToResolv table[], // IN: Table of name-
+		                                       // offset pairs
+		    int numEntries)                    // IN: Num entries in
+                                                       // table.
+{
+    void **func_ptr;
+    int i;
+
+    if (*ptr)
+	return 0;
+
+    *ptr = malloc(size);
+    if (!*ptr)
+	return -1;
+
+    dlhandle = dlopen(name, RTLD_NOW);
+    if (!dlhandle) {
+	g_debug("%s: Failed to open shared library \"%s\".\n", __func__,
+		name);
+	goto out_err;
+    }
+
+    for (i = 0; i < numEntries; ++i) {
+	func_ptr = (void *) ((unsigned long) *ptr + table[i].offset);
+	*func_ptr = dlsym(dlhandle, table[i].name);
+	if (!*func_ptr) {
+	    g_debug("%s: Failed to resolve %s symbol \"%s\".\n", __func__,
+		    name,table[i].name);
+	    goto out_err;
+	}
+    }
+
+    return 0;
+
+  out_err:
+    resolutionDLClose();
+
+    return -1;
+}
+
+/*
+ *-----------------------------------------------------------------------------
+ *
+ * resolutionDLOpen --
+ *
+ *     Tries to open and create a reference to distribution shared libraries
+ *     needed for the resolutionKMS functionality.
+ *
+ * Results:
+ *     If succesful returns zero, otherwise returns -1.
+ *
+ * Side effects:
+ *     None.
+ *
+ *-----------------------------------------------------------------------------
+ */
+int
+resolutionDLOpen(void)
+{
+    /* We support libudev major versions 0 and 1 for now. */
+    if (resolutionDLResolve((void **)&udevi, sizeof(*udevi), "libudev.so.1",
+			    udev1Table, ARRAYSIZE(udev1Table)) &&
+	resolutionDLResolve((void **)&udevi, sizeof(*udevi), "libudev.so.0",
+			    udev1Table, ARRAYSIZE(udev1Table)))
+	return -1;
+
+    if (resolutionDLResolve((void **)&drmi, sizeof(*drmi), "libdrm.so.2",
+			    drm2Table, ARRAYSIZE(drm2Table)))
+	return -1;
+
+    return 0;
+}
+
+#endif /* !HAVE_LIBUDEV */
+#endif /* ENABLE_RESOLUTIONKMS */
diff --git a/services/plugins/resolutionSet/resolutionDL.h b/services/plugins/resolutionSet/resolutionDL.h
new file mode 100644
index 0000000..f0d8c6d
--- /dev/null
+++ b/services/plugins/resolutionSet/resolutionDL.h
@@ -0,0 +1,217 @@
+/*********************************************************
+ * Copyright (C) 2016 VMware, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation version 2.1 and no later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the Lesser GNU General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA.
+ *
+ *********************************************************/
+/* Authors:
+ * Thomas Hellstrom <thellstrom@vmware.com>
+ */
+
+#ifndef _RESOLUTION_DL_H_
+#define _RESOLUTION_DL_H_
+#ifdef ENABLE_RESOLUTIONKMS
+
+#define INCLUDE_ALLOW_USERLEVEL
+#define INCLUDE_ALLOW_DISTRIBUTE
+#include "includeCheck.h"
+
+#ifndef HAVE_LIBUDEV
+
+#include <stdint.h>
+
+struct udev;
+struct udev_device;
+struct udev_enumerate;
+
+/*
+ * This struct holds the function pointers we use in libudev.1. Libudev is
+ * Lgpl 2.1 (or later) licensed, and according to lgpl 2.1, section 5, while
+ * we use materials copied from header files, we restrict ourselves to
+ * data structure layouts and small macros and thus, while this should be
+ * considered a derivative work, the use of the object file is unrestricted.
+ * An executable linked with libudev is however subject to lgpl license
+ * restrictions.
+ */
+struct Udev1Interface {
+    const char *
+    (*_device_get_devnode)(struct udev_device *);
+    struct udev_device *
+    (*_device_get_parent_with_subsystem_devtype)(struct udev_device *,
+						 const char *, const char *);
+    const char *
+    (*_device_get_sysattr_value)(struct udev_device *, const char *);
+    struct udev_device *
+    (*_device_new_from_syspath)(struct udev *, const char *);
+    struct udev_device *
+    (*_device_unref)(struct udev_device *);
+    int
+    (*_enumerate_add_match_property)(struct udev_enumerate *,const char *,
+				      const char *);
+    int
+    (*_enumerate_add_match_subsystem)(struct udev_enumerate *,const char *);
+    struct udev_list_entry *
+    (*_enumerate_get_list_entry)(struct udev_enumerate *);
+    struct udev_enumerate *
+    (*_enumerate_new)(struct udev *udev);
+    int
+    (*_enumerate_scan_devices)(struct udev_enumerate *);
+    struct udev_enumerate *
+    (*_enumerate_unref)(struct udev_enumerate *);
+    const char *
+    (*_list_entry_get_name)(struct udev_list_entry *);
+    struct udev_list_entry *
+    (*_list_entry_get_next)(struct udev_list_entry *);
+    struct udev *
+    (*_new)(void);
+    struct udev *
+    (*_unref)(struct udev *);
+};
+
+#define udevi_list_entry_foreach(_udevi, list_entry, first_entry)	\
+    for (list_entry = first_entry;					\
+	 list_entry != NULL;						\
+	 list_entry = (_udevi)->_list_entry_get_next(list_entry))
+
+/*
+ * This struct is originally defined in xf86drm.h which is MIT licenced.
+ * However, this should not be considered a substantial part of the software,
+ * and this struct is not subject to the license header of this file.
+ */
+typedef struct _drmVersion {
+    int     version_major;        /* Major version */
+    int     version_minor;        /* Minor version */
+    int     version_patchlevel;   /* Patch level */
+    int     name_len;	          /* Length of name buffer */
+    char    *name;	          /* Name of driver */
+    int     date_len;             /* Length of date buffer */
+    char    *date;                /* User-space buffer to hold date */
+    int     desc_len;	          /* Length of desc buffer */
+    char    *desc;                /* User-space buffer to hold desc */
+} drmVersion, *drmVersionPtr;
+
+#define DRM_VMW_UPDATE_LAYOUT        20
+
+/*
+ * These structs are originally defined in vmwgfx_drm.h, which is dual
+ * MIT and GPLv2 licenced. However, VMWare Inc. owns the copyright and it's
+ * should not be considered a substantial part of the software.
+ * However this struct is not subject to the license header of this file.
+ */
+/**
+ * struct drm_vmw_rect
+ *
+ * Defines a rectangle. Used in the overlay ioctl to define
+ * source and destination rectangle.
+ */
+
+struct drm_vmw_rect {
+	int32_t x;
+	int32_t y;
+	uint32_t w;
+	uint32_t h;
+};
+
+/**
+ * struct drm_vmw_update_layout_arg
+ *
+ * @num_outputs: number of active connectors
+ * @rects: pointer to array of drm_vmw_rect cast to an uint64_t
+ *
+ * Input argument to the DRM_VMW_UPDATE_LAYOUT Ioctl.
+ */
+struct drm_vmw_update_layout_arg {
+	uint32_t num_outputs;
+	uint32_t pad64;
+	uint64_t rects;
+};
+
+/*
+ * This struct holds the function pointers we use in libdrm.2. The
+ * libdrm API is MIT licenced and what we do here should not be considered
+ * a substantial part of the software:
+ * However this struct is not subject to the license header of this file.
+ */
+struct Drm2Interface {
+    drmVersionPtr (*GetVersion)(int fd);
+    void (*FreeVersion)(drmVersionPtr);
+    int (*DropMaster)(int fd);
+    int (*CommandWrite)(int fd, unsigned long drmCommandIndex, void *data,
+			unsigned long size);
+};
+
+extern struct Udev1Interface *udevi;
+extern struct Drm2Interface *drmi;
+
+void resolutionDLClose(void);
+int resolutionDLOpen(void);
+
+#define udev_device_get_devnode \
+    udevi->_device_get_devnode
+#define udev_device_get_parent_with_subsystem_devtype \
+    udevi->_device_get_parent_with_subsystem_devtype
+#define udev_device_get_sysattr_value \
+    udevi->_device_get_sysattr_value
+#define udev_device_new_from_syspath \
+    udevi->_device_new_from_syspath
+#define udev_device_unref \
+    udevi->_device_unref
+#define udev_enumerate_add_match_property \
+    udevi->_enumerate_add_match_property
+#define udev_enumerate_add_match_subsystem \
+    udevi->_enumerate_add_match_subsystem
+#define udev_enumerate_get_list_entry \
+    udevi->_enumerate_get_list_entry
+#define udev_enumerate_new \
+    udevi->_enumerate_new
+#define udev_enumerate_scan_devices \
+    udevi->_enumerate_scan_devices
+#define udev_enumerate_unref \
+    udevi->_enumerate_unref
+#define udev_list_entry_get_name \
+    udevi->_list_entry_get_name
+#define udev_list_entry_get_next \
+    udevi->_list_entry_get_next
+#define udev_new \
+    udevi->_new
+#define udev_unref \
+    udevi->_unref
+#define udev_list_entry_foreach(_a, _b)\
+    udevi_list_entry_foreach(udevi, _a, _b)
+
+#define drmGetVersion \
+    drmi->GetVersion
+#define drmFreeVersion \
+    drmi->FreeVersion
+#define drmDropMaster \
+    drmi->DropMaster
+#define drmCommandWrite \
+    drmi->CommandWrite
+
+#else /* HAVE_LIBUDEV */
+
+#include <libudev.h>
+#include <xf86drm.h>
+#include <vmwgfx_drm.h>
+
+/* Work around an incorrect define in old libdrm */
+#undef DRM_VMW_UPDATE_LAYOUT
+#define DRM_VMW_UPDATE_LAYOUT        20
+
+static inline void resolutionDLClose(void) {}
+static inline int resolutionDLOpen(void) {return 0;}
+
+#endif /* HAVE_LIBUDEV */
+#endif /* ENABLE_RESOLUTIONKMS */
+#endif
diff --git a/services/plugins/resolutionSet/resolutionInt.h b/services/plugins/resolutionSet/resolutionInt.h
index 55bb704..877a7bc 100644
--- a/services/plugins/resolutionSet/resolutionInt.h
+++ b/services/plugins/resolutionSet/resolutionInt.h
@@ -74,13 +74,20 @@ typedef struct {
 
 extern ResolutionInfoType resolutionInfo;
 
+#if defined(G_LOG_DOMAIN)
+#error Please include this file before glib.h
+#endif
+#define G_LOG_DOMAIN "resolutionSet"
+
+#include "vmware/tools/plugin.h"
+
 /*
  * Global functions
  */
 
 /* Functions defined by back-end. */
 Bool ResolutionBackendInit(InitHandle handle);
-InitHandle ResolutionToolkitInit(void);
+InitHandle ResolutionToolkitInit(ToolsAppCtx *ctx);
 void ResolutionBackendCleanup(void);
 Bool ResolutionSetResolution(uint32 width, uint32 height);
 #if defined(RESOLUTION_WIN32)
@@ -90,9 +97,4 @@ void ResolutionSetSessionChange(DWORD code, DWORD sessionID);
 Bool ResolutionSetTopology(unsigned int ndisplays, DisplayTopologyInfo displays[]);
 Bool ResolutionSetTopologyModes(unsigned int screen, unsigned int cmd, unsigned int ndisplays, DisplayTopologyInfo displays[]);
 
-#if defined(G_LOG_DOMAIN)
-#error Please include this file before glib.h
-#endif
-#define G_LOG_DOMAIN "resolutionSet"
-
 #endif // ifndef _LIB_RESOLUTIONINT_H_
diff --git a/services/plugins/resolutionSet/resolutionSet.c b/services/plugins/resolutionSet/resolutionSet.c
index 96c8349..52e0c5b 100644
--- a/services/plugins/resolutionSet/resolutionSet.c
+++ b/services/plugins/resolutionSet/resolutionSet.c
@@ -584,9 +584,10 @@ ToolsOnLoad(ToolsAppCtx *ctx)
    /*
     * XXX move to some shared lib or plugin
     */
-   handle = ResolutionToolkitInit();
+   handle = ResolutionToolkitInit(ctx);
 
-   ResolutionInit(handle);
+   if (!ResolutionInit(handle))
+      return NULL;
 
    regs[0].data = VMTools_WrapArray(rpcs, sizeof *rpcs, ARRAYSIZE(rpcs));
    regData.regs = VMTools_WrapArray(regs, sizeof *regs, ARRAYSIZE(regs));
diff --git a/services/plugins/resolutionSet/resolutionX11.c b/services/plugins/resolutionSet/resolutionX11.c
index 3c5c120..ae42617 100644
--- a/services/plugins/resolutionSet/resolutionX11.c
+++ b/services/plugins/resolutionSet/resolutionX11.c
@@ -45,6 +45,7 @@
 #include "strutil.h"
 #include "util.h"
 #include "posix.h"
+#include "resolutionCommon.h"
 
 #define VMWAREDRV_PATH_64   "/usr/X11R6/lib64/modules/drivers/vmware_drv.o"
 #define VMWAREDRV_PATH      "/usr/X11R6/lib/modules/drivers/vmware_drv.o"
@@ -105,8 +106,9 @@ ResolutionBackendInit(InitHandle handle)
    resInfoX->display = handle;
 
    if (resInfoX->display == NULL) {
-      g_warning("%s: Called with invalid X display!\n", __func__);
-      return FALSE;
+      resInfo->canSetResolution = FALSE;
+      resInfo->canSetTopology = FALSE;
+      return TRUE;
    }
 
    resInfoX->display = handle;
@@ -335,15 +337,10 @@ static Bool
 ResolutionCanSet(void)
 {
    ResolutionInfoX11Type *resInfoX = &resolutionInfoX11;
-   int fd = -1;
-   off_t filePos = 0;
-   Bool keepSearching = TRUE;
-   Bool found = FALSE;
-   char buf[sizeof VERSION_STRING + 10]; // size of VERSION_STRING plus some extra for the version number
-   const char versionString[] = VERSION_STRING;
-   ssize_t bytesRead;
-   int32 major, minor, level;
-   unsigned int tokPos;
+   int major, minor, level;
+   static const char *driverPaths[] = {
+      VMWAREDRV_PATH_64,
+      VMWAREDRV_PATH};
 
    /* See if the randr X module is loaded */
    if (!XRRQueryVersion(resInfoX->display, &major, &minor) ) {
@@ -411,55 +408,9 @@ ResolutionCanSet(void)
     * 6.9/7.0, we can instead just use the VMWARE_CTRL check.
     */
 
-   buf[sizeof buf - 1] = '\0';
-   fd = Posix_Open(VMWAREDRV_PATH_64, O_RDONLY);
-   if (fd == -1) {
-      fd = Posix_Open(VMWAREDRV_PATH, O_RDONLY);
-   }
-   if (fd != -1) {
-      /*
-       * One of the opens succeeded, so start searching thru the file.
-       */
-      while (keepSearching) {
-         bytesRead = read(fd, buf, sizeof buf - 1);
-         if (bytesRead == -1 || bytesRead < sizeof buf -1 ) {
-            keepSearching = FALSE;
-         } else {
-            if (Str_Strncmp(versionString, buf, sizeof versionString - 1) == 0) {
-               keepSearching = FALSE;
-               found = TRUE;
-            }
-         }
-         filePos = lseek(fd, filePos+1, SEEK_SET);
-         if (filePos == -1) {
-            keepSearching = FALSE;
-         }
-      }
-      close(fd);
-      if (found) {
-         /*
-          * We NUL-terminated buf earlier, but Coverity really wants it to
-          * be NUL-terminated after the call to read (because
-          * read doesn't NUL-terminate). So we'll do it again.
-          */
-         buf[sizeof buf - 1] = '\0';
-
-         /*
-          * Try and parse the major, minor and level versions
-          */
-         tokPos = sizeof versionString - 1;
-         if (!StrUtil_GetNextIntToken(&major, &tokPos, buf, ".- ")) {
-            return FALSE;
-         }
-         if (!StrUtil_GetNextIntToken(&minor, &tokPos, buf, ".- ")) {
-            return FALSE;
-         }
-         if (!StrUtil_GetNextIntToken(&level, &tokPos, buf, ".- ")) {
-            return FALSE;
-         }
-
-         return ((major > 10) || (major == 10 && minor >= 11));
-      }
+   if (!resolutionXorgDriverVersion(2, driverPaths, VERSION_STRING,
+				    &major, &minor, &level)) {
+      return ((major > 10) || (major == 10 && minor >= 11));
    }
    return FALSE;
 }
@@ -633,12 +584,20 @@ ResolutionX11ErrorHandler(Display *d,      // IN: Pointer to display connection
  */
 
 InitHandle
-ResolutionToolkitInit(void)
+ResolutionToolkitInit(ToolsAppCtx *ctx) // IN: For config database access
 {
    int argc = 1;
    char *argv[] = {"", NULL};
    GtkWidget *wnd;
    Display *display;
+   int fd;
+
+   fd = resolutionCheckForKMS(ctx);
+   if (fd >= 0) {
+      resolutionDRMClose(fd);
+      g_message("%s: Backing off for resolutionKMS.\n", __func__);
+      return (InitHandle) 0;
+   }
 
    XSetErrorHandler(ResolutionX11ErrorHandler);
    gtk_init(&argc, (char ***) &argv);
@@ -648,5 +607,9 @@ ResolutionToolkitInit(void)
 #else
    display = GDK_WINDOW_XDISPLAY(gtk_widget_get_window(wnd));
 #endif
+
+   if (!display)
+      g_error("%s: Invalid display detected.\n", __func__);
+
    return (InitHandle) display;
 }