New upstream version 1.19.90 upstream/1.19.90

1 files changed, 178 insertions, 0 deletions

diff --git a/src/settings/nm-settings-storage.c b/src/settings/nm-settings-storage.c
new file mode 100644
index 00000000..935b5b48
--- /dev/null
+++ b/src/settings/nm-settings-storage.c
@@ -0,0 +1,178 @@
+/*
+ * This library 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; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * 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.
+ *
+ * Copyright 2018 Red Hat, Inc.
+ */
+
+#include "nm-default.h"
+
+#include "nm-settings-storage.h"
+
+#include "nm-utils.h"
+#include "nm-settings-plugin.h"
+
+#include "settings/plugins/keyfile/nms-keyfile-storage.h"
+
+/*****************************************************************************/
+
+int
+nm_settings_storage_cmp (NMSettingsStorage *a,
+                         NMSettingsStorage *b,
+                         const GSList *plugin_list)
+{
+	NMSettingsStorageClass *klass;
+
+	/* Sort by priority.
+	 *
+	 * If a > b (by priority), we return a positive number (as one
+	 * would expect by a cmp() function). */
+
+	nm_assert (NM_IS_SETTINGS_STORAGE (a));
+	nm_assert (NM_IS_SETTINGS_STORAGE (b));
+	nm_assert (a != b);
+	nm_assert (nm_streq (nm_settings_storage_get_uuid (a), nm_settings_storage_get_uuid (b)));
+
+	/* in-memory has always higher priority */
+	NM_CMP_DIRECT (nm_settings_storage_is_keyfile_run (a),
+	               nm_settings_storage_is_keyfile_run (b));
+
+	NM_CMP_RETURN (nm_settings_plugin_cmp_by_priority (nm_settings_storage_get_plugin (a),
+	                                                   nm_settings_storage_get_plugin (b),
+	                                                   plugin_list));
+
+	klass = NM_SETTINGS_STORAGE_GET_CLASS (a);
+	if (klass != NM_SETTINGS_STORAGE_GET_CLASS (b)) {
+		/* one plugin must return storages of the same type. Otherwise, it's
+		 * unclear how cmp_fcn() should compare them. */
+		nm_assert_not_reached ();
+		return 0;
+	}
+
+	if (klass->cmp_fcn)
+		NM_CMP_RETURN (klass->cmp_fcn (a, b));
+
+	return 0;
+}
+
+/*****************************************************************************/
+
+NM_GOBJECT_PROPERTIES_DEFINE_BASE (
+	PROP_PLUGIN,
+	PROP_UUID,
+	PROP_FILENAME,
+);
+
+G_DEFINE_TYPE (NMSettingsStorage, nm_settings_storage, G_TYPE_OBJECT)
+
+/*****************************************************************************/
+
+static void
+set_property (GObject *object, guint prop_id,
+              const GValue *value, GParamSpec *pspec)
+{
+	NMSettingsStorage *self = NM_SETTINGS_STORAGE (object);
+
+	switch (prop_id) {
+	case PROP_PLUGIN:
+		/* construct-only */
+		self->_plugin = g_object_ref (g_value_get_object (value));
+		nm_assert (NM_IS_SETTINGS_PLUGIN (self->_plugin));
+		break;
+	case PROP_UUID:
+		/* construct-only */
+		self->_uuid = g_value_dup_string (value);
+		nm_assert (!self->_uuid || nm_utils_is_uuid (self->_uuid));
+		break;
+	case PROP_FILENAME:
+		/* construct-only */
+		self->_filename = g_value_dup_string (value);
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+}
+
+/*****************************************************************************/
+
+static void
+nm_settings_storage_init (NMSettingsStorage *self)
+{
+	c_list_init (&self->_storage_lst);
+	c_list_init (&self->_storage_by_uuid_lst);
+}
+
+NMSettingsStorage *
+nm_settings_storage_new (NMSettingsPlugin *plugin,
+                         const char *uuid,
+                         const char *filename)
+{
+	nm_assert (NM_IS_SETTINGS_PLUGIN (plugin));
+	nm_assert (nm_utils_is_uuid (uuid));
+
+	return g_object_new (NM_TYPE_SETTINGS_STORAGE,
+	                     NM_SETTINGS_STORAGE_PLUGIN, plugin,
+	                     NM_SETTINGS_STORAGE_UUID, uuid,
+	                     NM_SETTINGS_STORAGE_FILENAME, filename,
+	                     NULL);
+}
+
+static void
+finalize (GObject *object)
+{
+	NMSettingsStorage *self = NM_SETTINGS_STORAGE (object);
+
+	c_list_unlink_stale (&self->_storage_lst);
+	c_list_unlink_stale (&self->_storage_by_uuid_lst);
+
+	g_object_unref (self->_plugin);
+	g_free (self->_uuid);
+	g_free (self->_filename);
+
+	G_OBJECT_CLASS (nm_settings_storage_parent_class)->finalize (object);
+}
+
+static void
+nm_settings_storage_class_init (NMSettingsStorageClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+	object_class->set_property = set_property;
+	object_class->finalize     = finalize;
+
+	obj_properties[PROP_PLUGIN] =
+	    g_param_spec_object (NM_SETTINGS_STORAGE_PLUGIN, "", "",
+	                         NM_TYPE_SETTINGS_PLUGIN,
+	                         G_PARAM_WRITABLE |
+	                         G_PARAM_CONSTRUCT_ONLY |
+	                         G_PARAM_STATIC_STRINGS);
+
+	obj_properties[PROP_UUID] =
+	    g_param_spec_string (NM_SETTINGS_STORAGE_UUID, "", "",
+	                         NULL,
+	                         G_PARAM_WRITABLE |
+	                         G_PARAM_CONSTRUCT_ONLY |
+	                         G_PARAM_STATIC_STRINGS);
+
+	obj_properties[PROP_FILENAME] =
+	    g_param_spec_string (NM_SETTINGS_STORAGE_FILENAME, "", "",
+	                         NULL,
+	                         G_PARAM_WRITABLE |
+	                         G_PARAM_CONSTRUCT_ONLY |
+	                         G_PARAM_STATIC_STRINGS);
+
+	g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
+}