mutter/SOURCES/add-unsafe-mode-property.patch

From d89c71ed2bdb18e9b01891d6b999c44f955778dc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Wed, 1 Sep 2021 21:12:03 +0200
Subject: [PATCH 1/2] context: Add :unsafe-mode property

We are going to restrict several sensitive D-Bus APIs to a set
of allowed callers (like Settings or portal implementations).

Add an :unsafe-mode property to the context to allow turning off
those restrictions temporarily, in order to not get in the way
of development/debugging.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3943

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1983>
---
 src/backends/meta-backend-private.h |  4 ++
 src/backends/meta-backend.c         | 83 +++++++++++++++++++++++++++++
 2 files changed, 87 insertions(+)

diff --git a/src/backends/meta-backend-private.h b/src/backends/meta-backend-private.h
index b930462b2..583d4e151 100644
--- a/src/backends/meta-backend-private.h
+++ b/src/backends/meta-backend-private.h
@@ -133,6 +133,10 @@ void meta_backend_foreach_device_monitor (MetaBackend *backend,
                                           GFunc        func,
                                           gpointer     user_data);
 
+gboolean meta_backend_get_unsafe_mode (MetaBackend *backend);
+void meta_backend_set_unsafe_mode (MetaBackend *backend,
+                                   gboolean     enable);
+
 META_EXPORT_TEST
 MetaMonitorManager * meta_backend_get_monitor_manager (MetaBackend *backend);
 MetaOrientationManager * meta_backend_get_orientation_manager (MetaBackend *backend);
diff --git a/src/backends/meta-backend.c b/src/backends/meta-backend.c
index ff84bfe6a..18bee2484 100644
--- a/src/backends/meta-backend.c
+++ b/src/backends/meta-backend.c
@@ -88,6 +88,17 @@
 #include "wayland/meta-wayland.h"
 #endif
 
+enum
+{
+  PROP_0,
+
+  PROP_UNSAFE_MODE,
+
+  N_PROPS
+};
+
+static GParamSpec *obj_props[N_PROPS];
+
 enum
 {
   KEYMAP_CHANGED,
@@ -158,6 +169,8 @@ struct _MetaBackendPrivate
 
   gboolean is_pointer_position_initialized;
 
+  gboolean unsafe_mode;
+
   guint device_update_idle_id;
 
   GHashTable *device_monitors;
@@ -814,6 +827,64 @@ upower_vanished (GDBusConnection *connection,
   g_clear_object (&priv->upower_proxy);
 }
 
+gboolean
+meta_backend_get_unsafe_mode (MetaBackend *backend)
+{
+  MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
+
+  return priv->unsafe_mode;
+}
+
+void
+meta_backend_set_unsafe_mode (MetaBackend *backend,
+                              gboolean     enable)
+{
+  MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
+
+  if (priv->unsafe_mode == enable)
+    return;
+
+  priv->unsafe_mode = enable;
+  g_object_notify_by_pspec (G_OBJECT (backend), obj_props[PROP_UNSAFE_MODE]);
+}
+
+static void
+meta_backend_get_property (GObject    *object,
+                           guint       prop_id,
+                           GValue     *value,
+                           GParamSpec *pspec)
+{
+  MetaBackend *backend = META_BACKEND (object);
+  MetaBackendPrivate *priv = meta_backend_get_instance_private (backend);
+
+  switch (prop_id)
+    {
+    case PROP_UNSAFE_MODE:
+      g_value_set_boolean (value, priv->unsafe_mode);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+meta_backend_set_property (GObject      *object,
+                           guint         prop_id,
+                           const GValue *value,
+                           GParamSpec   *pspec)
+{
+  MetaBackend *backend = META_BACKEND (object);
+
+  switch (prop_id)
+    {
+    case PROP_UNSAFE_MODE:
+      meta_backend_set_unsafe_mode (backend, g_value_get_boolean (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
 static void
 meta_backend_constructed (GObject *object)
 {
@@ -851,6 +922,8 @@ meta_backend_class_init (MetaBackendClass *klass)
 
   object_class->dispose = meta_backend_dispose;
   object_class->constructed = meta_backend_constructed;
+  object_class->get_property = meta_backend_get_property;
+  object_class->set_property = meta_backend_set_property;
 
   klass->post_init = meta_backend_real_post_init;
   klass->grab_device = meta_backend_real_grab_device;
@@ -907,6 +980,16 @@ meta_backend_class_init (MetaBackendClass *klass)
                   NULL, NULL, NULL,
                   G_TYPE_NONE, 0);
 
+  obj_props[PROP_UNSAFE_MODE] =
+    g_param_spec_boolean ("unsafe-mode",
+                          "unsafe mode",
+                          "Unsafe mode",
+                          FALSE,
+                          G_PARAM_READWRITE |
+                          G_PARAM_EXPLICIT_NOTIFY |
+                          G_PARAM_STATIC_STRINGS);
+  g_object_class_install_properties (object_class, N_PROPS, obj_props);
+
   mutter_stage_views = g_getenv ("MUTTER_STAGE_VIEWS");
   stage_views_disabled = g_strcmp0 (mutter_stage_views, "0") == 0;
 }
-- 
2.35.1


From dc69aa57be79fa7f371788c852f6e23cf0d261cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Thu, 2 Sep 2021 18:41:16 +0200
Subject: [PATCH 2/2] context: Add (hidden) --unsafe-mode option

When running gnome-shell, it is possible to toggle unsafe-mode in
looking glass. We'll eventually start using the property in mutter
as well, so to make stand-alone debugging easier, also expose it
as a hidden command line option.

https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3943

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1983>
---
 src/core/main.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/core/main.c b/src/core/main.c
index 0d241f952..991d583a0 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -218,6 +218,7 @@ static char     *opt_wayland_display;
 static gboolean  opt_display_server;
 static gboolean  opt_headless;
 #endif
+static gboolean  opt_unsafe_mode;
 static gboolean  opt_x11;
 
 #ifdef HAVE_NATIVE_BACKEND
@@ -306,6 +307,11 @@ static GOptionEntry meta_options[] = {
     N_("Add persistent virtual monitor (WxH or WxH@R)")
   },
 #endif
+  {
+    "unsafe-mode", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE,
+    &opt_unsafe_mode,
+    "Run in unsafe mode"
+  },
   {
     "x11", 0, 0, G_OPTION_ARG_NONE,
     &opt_x11,
@@ -865,6 +871,7 @@ meta_init (void)
   add_persistent_virtual_monitors ();
 #endif
 
+  meta_backend_set_unsafe_mode (meta_get_backend(), opt_unsafe_mode);
   meta_set_syncing (opt_sync || (g_getenv ("MUTTER_SYNC") != NULL));
 
   if (opt_replace_wm)
-- 
2.35.1