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-rw-r--r--libnm-util/nm-param-spec-specialized.c973
1 files changed, 973 insertions, 0 deletions
diff --git a/libnm-util/nm-param-spec-specialized.c b/libnm-util/nm-param-spec-specialized.c
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+++ b/libnm-util/nm-param-spec-specialized.c
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+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+
+/*
+ * Dan Williams <dcbw@redhat.com>
+ * Tambet Ingo <tambet@gmail.com>
+ *
+ * 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.
+ *
+ * (C) Copyright 2007 - 2010 Red Hat, Inc.
+ * (C) Copyright 2007 - 2008 Novell, Inc.
+ */
+
+#include "nm-param-spec-specialized.h"
+
+struct _NMParamSpecSpecialized {
+	GParamSpec parent;
+};
+
+#include <string.h>
+#include <math.h>
+#include <netinet/in.h>
+#include <dbus/dbus-glib.h>
+
+#include "nm-dbus-glib-types.h"
+
+/***********************************************************/
+/* nm_gvalues_compare */
+
+static gint nm_gvalues_compare (const GValue *value1, const GValue *value2);
+
+static gboolean
+type_is_fixed_size (GType type, gsize *tsize)
+{
+	switch (type) {
+	case G_TYPE_CHAR:
+		if (tsize) *tsize = sizeof (char);
+		return TRUE;
+	case G_TYPE_UCHAR:
+		if (tsize) *tsize = sizeof (guchar);
+		return TRUE;
+	case G_TYPE_BOOLEAN:
+		if (tsize) *tsize = sizeof (gboolean);
+		return TRUE;
+	case G_TYPE_LONG:
+		if (tsize) *tsize = sizeof (glong);
+		return TRUE;
+	case G_TYPE_ULONG:
+		if (tsize) *tsize = sizeof (gulong);
+		return TRUE;
+	case G_TYPE_INT:
+		if (tsize) *tsize = sizeof (gint);
+		return TRUE;
+	case G_TYPE_UINT:
+		if (tsize) *tsize = sizeof (guint);
+		return TRUE;
+	case G_TYPE_INT64:
+		if (tsize) *tsize = sizeof (gint64);
+		return TRUE;
+	case G_TYPE_UINT64:
+		if (tsize) *tsize = sizeof (guint64);
+		return TRUE;
+	case G_TYPE_FLOAT:
+		if (tsize) *tsize = sizeof (gfloat);
+		return TRUE;
+	case G_TYPE_DOUBLE:
+		if (tsize) *tsize = sizeof (gdouble);
+		return TRUE;
+	default:
+		return FALSE;
+	}
+}
+
+#define FLOAT_FACTOR 0.00000001
+
+static gint
+nm_gvalues_compare_fixed (const GValue *value1, const GValue *value2)
+{
+	int ret = 0;
+
+	switch (G_VALUE_TYPE (value1)) {
+	case G_TYPE_CHAR: {
+		gchar val1 = g_value_get_char (value1);
+		gchar val2 = g_value_get_char (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_UCHAR: {
+		guchar val1 = g_value_get_uchar (value1);
+		guchar val2 = g_value_get_uchar (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_BOOLEAN: {
+		gboolean val1 = g_value_get_boolean (value1);
+		gboolean val2 = g_value_get_boolean (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_LONG: {
+		glong val1 = g_value_get_long (value1);
+		glong val2 = g_value_get_long (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_ULONG: {
+		gulong val1 = g_value_get_ulong (value1);
+		gulong val2 = g_value_get_ulong (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_INT: {
+		gint val1 = g_value_get_int (value1);
+		gint val2 = g_value_get_int (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_UINT: {
+		guint val1 = g_value_get_uint (value1);
+		guint val2 = g_value_get_uint (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_INT64: {
+		gint64 val1 = g_value_get_int64 (value1);
+		gint64 val2 = g_value_get_int64 (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_UINT64: {
+		guint64 val1 = g_value_get_uint64 (value1);
+		guint64 val2 = g_value_get_uint64 (value2);
+		if (val1 != val2)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_FLOAT: {
+		gfloat val1 = g_value_get_float (value1);
+		gfloat val2 = g_value_get_float (value2);
+		/* Can't use == or != here due to inexactness of FP */
+		if (fabsf (val1 - val2) > FLOAT_FACTOR)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	case G_TYPE_DOUBLE: {
+		gdouble val1 = g_value_get_double (value1);
+		gdouble val2 = g_value_get_double (value2);
+		if (fabs (val1 - val2) > FLOAT_FACTOR)
+			ret = val1 < val2 ? -1 : val1 > val2;
+		break;
+	}
+	default:
+		g_warning ("Unhandled fixed size type '%s'", G_VALUE_TYPE_NAME (value1));
+	}
+
+	return ret;
+}
+
+static gint
+nm_gvalues_compare_string (const GValue *value1, const GValue *value2)
+{
+	const char *str1 = g_value_get_string (value1);
+	const char *str2 = g_value_get_string (value2);
+
+	if (str1 == str2)
+		return 0;
+
+	if (!str1)
+		return 1;
+	if (!str2)
+		return -1;
+
+	return strcmp (str1, str2);
+}
+
+static gint
+nm_gvalues_compare_strv (const GValue *value1, const GValue *value2)
+{
+	char **strv1;
+	char **strv2;
+	gint ret;
+	guint i = 0;
+
+	strv1 = (char **) g_value_get_boxed (value1);
+	strv2 = (char **) g_value_get_boxed (value2);
+
+	while (strv1[i] && strv2[i]) {
+		ret = strcmp (strv1[i], strv2[i]);
+		if (ret)
+			return ret;
+		i++;
+	}
+
+	if (strv1[i] == NULL && strv2[i] == NULL)
+		return 0;
+
+	if (strv1[i])
+		return 1;
+
+	return -1;
+}
+
+static void
+nm_gvalue_destroy (gpointer data)
+{
+	GValue *value = (GValue *) data;
+
+	g_value_unset (value);
+	g_slice_free (GValue, value);
+}
+
+static GValue *
+nm_gvalue_dup (const GValue *value)
+{
+	GValue *dup;
+
+	dup = g_slice_new0 (GValue);
+	g_value_init (dup, G_VALUE_TYPE (value));
+	g_value_copy (value, dup);
+
+	return dup;
+}
+
+static void
+iterate_collection (const GValue *value, gpointer user_data)
+{
+	GSList **list = (GSList **) user_data;
+	
+	*list = g_slist_prepend (*list, nm_gvalue_dup (value));
+}
+
+static gint
+nm_gvalues_compare_collection (const GValue *value1, const GValue *value2)
+{
+	gint ret;
+	guint len1;
+	guint len2;
+	GType value_type = dbus_g_type_get_collection_specialization (G_VALUE_TYPE (value1));
+	gsize element_size = 0;
+
+	if (type_is_fixed_size (value_type, &element_size)) {
+		gpointer data1 = NULL;
+		gpointer data2 = NULL;
+
+		dbus_g_type_collection_get_fixed ((GValue *) value1, &data1, &len1);
+		dbus_g_type_collection_get_fixed ((GValue *) value2, &data2, &len2);
+
+		if (len1 != len2)
+			ret = len1 < len2 ? -1 : len1 > len2;
+		else
+			ret = memcmp (data1, data2, len1 * element_size);
+	} else {
+		GSList *list1 = NULL;
+		GSList *list2 = NULL;
+
+		dbus_g_type_collection_value_iterate (value1, iterate_collection, &list1);
+		len1 = g_slist_length (list1);
+		dbus_g_type_collection_value_iterate (value2, iterate_collection, &list2);
+		len2 = g_slist_length (list2);
+
+		if (len1 != len2)
+			ret = len1 < len2 ? -1 : len1 > len2;
+		else {
+			GSList *iter1;
+			GSList *iter2;
+
+			for (iter1 = list1, iter2 = list2, ret = 0;
+				ret == 0 && iter1 && iter2; 
+				iter1 = iter1->next, iter2 = iter2->next)
+				ret = nm_gvalues_compare ((GValue *) iter1->data, (GValue *) iter2->data);
+		}
+
+		g_slist_foreach (list1, (GFunc) nm_gvalue_destroy, NULL);
+		g_slist_free (list1);
+		g_slist_foreach (list2, (GFunc) nm_gvalue_destroy, NULL);
+		g_slist_free (list2);
+	}
+
+	return ret;
+}
+
+static void
+iterate_map (const GValue *key_val,
+		   const GValue *value_val,
+		   gpointer user_data)
+{
+	GHashTable **hash = (GHashTable **) user_data;
+
+	g_hash_table_insert (*hash, g_value_dup_string (key_val), nm_gvalue_dup (value_val));
+}
+
+typedef struct {
+	GHashTable *hash2;
+	gint ret;
+} CompareMapInfo;
+
+static void
+compare_one_map_item (gpointer key, gpointer val, gpointer user_data)
+{
+	CompareMapInfo *info = (CompareMapInfo *) user_data;
+	GValue *value2;
+
+	if (info->ret)
+		return;
+
+	value2 = (GValue *) g_hash_table_lookup (info->hash2, key);
+	if (value2)
+		info->ret = nm_gvalues_compare ((GValue *) val, value2);
+	else
+		info->ret = 1;
+}
+
+static gint
+nm_gvalues_compare_map (const GValue *value1, const GValue *value2)
+{
+	GHashTable *hash1 = NULL;
+	GHashTable *hash2 = NULL;
+	guint len1;
+	guint len2;
+	gint ret = 0;
+
+	if (dbus_g_type_get_map_key_specialization (G_VALUE_TYPE (value1)) != G_TYPE_STRING) {
+		g_warning ("Can not compare maps with '%s' for keys",
+				 g_type_name (dbus_g_type_get_map_key_specialization (G_VALUE_TYPE (value1))));
+		return 0;
+	}
+
+	hash1 = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, nm_gvalue_destroy);
+	dbus_g_type_map_value_iterate (value1, iterate_map, &hash1); 
+	len1 = g_hash_table_size (hash1);
+
+	hash2 = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, nm_gvalue_destroy);
+	dbus_g_type_map_value_iterate (value2, iterate_map, &hash2);
+	len2 = g_hash_table_size (hash2);
+
+	if (len1 != len2)
+		ret = len1 < len2 ? -1 : len1 > len2;
+	else {
+		CompareMapInfo info;
+
+		info.ret = 0;
+		info.hash2 = hash2;
+		g_hash_table_foreach (hash1, compare_one_map_item, &info);
+		ret = info.ret;
+	}
+
+	g_hash_table_destroy (hash1);
+	g_hash_table_destroy (hash2);
+
+	return ret;
+}
+
+static gint
+nm_gvalue_ip6_address_compare (const GValue *value1, const GValue *value2)
+{
+	GValueArray *values1, *values2;
+	GValue *tmp_val;
+	GByteArray *addr1, *addr2;
+	guint32 prefix1, prefix2;
+	GByteArray *gw1, *gw2;
+	gint ret = 0;
+	int i;
+
+	/* IP6 addresses are GValueArrays (see nm-dbus-glib-types.h) */
+	values1 = g_value_get_boxed (value1);
+	values2 = g_value_get_boxed (value2);
+
+	/* Since they are NM IPv6 address structures, we expect both
+	 * to contain two elements as specified in nm-dbus-glib-types.h.
+	 */
+	g_return_val_if_fail (values1->n_values == 3, 0);
+	g_return_val_if_fail (values2->n_values == 3, 0);
+
+	/* First struct IPv6 address */
+	tmp_val = g_value_array_get_nth (values1, 0);
+	addr1 = g_value_get_boxed (tmp_val);
+	/* First struct IPv6 prefix */
+	tmp_val = g_value_array_get_nth (values1, 1);
+	prefix1 = g_value_get_uint (tmp_val);
+	/* First struct IPv6 gateway */
+	tmp_val = g_value_array_get_nth (values1, 2);
+	gw1 = g_value_get_boxed (tmp_val);
+
+	/* Second struct IPv6 address */
+	tmp_val = g_value_array_get_nth (values2, 0);
+	addr2 = g_value_get_boxed (tmp_val);
+	/* Second struct IPv6 prefix */
+	tmp_val = g_value_array_get_nth (values2, 1);
+	prefix2 = g_value_get_uint (tmp_val);
+	/* Second struct IPv6 gateway */
+	tmp_val = g_value_array_get_nth (values2, 2);
+	gw2 = g_value_get_boxed (tmp_val);
+
+	/* Compare IPv6 addresses */
+	if (prefix1 != prefix2)
+		return prefix1 < prefix2 ? -1 : prefix1 > prefix2;
+
+	if (!IN6_ARE_ADDR_EQUAL ((struct in6_addr *)addr1->data, (struct in6_addr *)addr2->data)) {
+		for (i = 0; ret == 0 && i < addr1->len; i++)
+			ret = addr1->data[i] < addr2->data[i] ? -1 : addr1->data[i] > addr2->data[i];
+	}
+
+	if (!IN6_ARE_ADDR_EQUAL ((struct in6_addr *) gw1->data, (struct in6_addr *) gw2->data)) {
+		for (i = 0; ret == 0 && i < gw1->len; i++)
+			ret = gw1->data[i] < gw2->data[i] ? -1 : gw1->data[i] > gw2->data[i];
+	}
+
+	return ret;
+}
+
+static gint
+nm_gvalue_ip6_route_compare (const GValue *value1, const GValue *value2)
+{
+	GValueArray *values1, *values2;
+	GValue *tmp_val;
+	GByteArray *dest1, *dest2;
+	GByteArray *next_hop1, *next_hop2;
+	guint32 prefix1, prefix2;
+	guint32 metric1, metric2;
+	gint ret = 0;
+	int i;
+
+	/* IP6 routes are GValueArrays (see nm-dbus-glib-types.h) */
+	values1 = g_value_get_boxed (value1);
+	values2 = g_value_get_boxed (value2);
+
+	/* Since they are NM IPv6 route structures, we expect both
+	 * to contain 4 elements as specified in nm-dbus-glib-types.h.
+	 */
+	g_return_val_if_fail (values1->n_values == 4, 0);
+	g_return_val_if_fail (values2->n_values == 4, 0);
+
+	/* First struct IPv6 route */
+	tmp_val = g_value_array_get_nth (values1, 0);
+	dest1 = g_value_get_boxed (tmp_val);
+	tmp_val = g_value_array_get_nth (values1, 1);
+	prefix1 = g_value_get_uint (tmp_val);
+	tmp_val = g_value_array_get_nth (values1, 2);
+	next_hop1 = g_value_get_boxed (tmp_val);
+	tmp_val = g_value_array_get_nth (values1, 3);
+	metric1 = g_value_get_uint (tmp_val);
+
+	/* Second struct IPv6 route */
+	tmp_val = g_value_array_get_nth (values2, 0);
+	dest2 = g_value_get_boxed (tmp_val);
+	tmp_val = g_value_array_get_nth (values2, 1);
+	prefix2 = g_value_get_uint (tmp_val);
+	tmp_val = g_value_array_get_nth (values2, 2);
+	next_hop2 = g_value_get_boxed (tmp_val);
+	tmp_val = g_value_array_get_nth (values2, 3);
+	metric2 = g_value_get_uint (tmp_val);
+
+	/* Compare the routes */
+	if (prefix1 != prefix2)
+		return prefix1 < prefix2 ? -1 : prefix1 > prefix2;
+
+	if (!IN6_ARE_ADDR_EQUAL ((struct in6_addr *)dest1->data, (struct in6_addr *)dest2->data)) {
+		for (i = 0; ret == 0 && i < dest1->len; i++)
+			ret = dest1->data[i] < dest2->data[i] ? -1 : dest1->data[i] > dest2->data[i];
+	}
+
+	if (!IN6_ARE_ADDR_EQUAL ((struct in6_addr *)next_hop1->data, (struct in6_addr *)next_hop2->data)) {
+		for (i = 0; ret == 0 && i < next_hop1->len; i++)
+			ret = next_hop1->data[i] < next_hop2->data[i] ? -1 : next_hop1->data[i] > next_hop2->data[i];
+	}
+
+	if (metric1 != metric2)
+		ret = metric1 < metric2 ? -1 : metric1 > metric2;
+
+	return ret;
+}
+
+static gint
+nm_gvalues_compare_struct (const GValue *value1, const GValue *value2)
+{
+	/* value1 and value2 must contain the same type since
+	 * nm_gvalues_compare() enforced that already.
+	 */
+
+	if (G_VALUE_HOLDS (value1, DBUS_TYPE_G_IP6_ADDRESS)) {
+		return nm_gvalue_ip6_address_compare (value1, value2);
+	} else if (G_VALUE_HOLDS (value1, DBUS_TYPE_G_IP6_ROUTE)) {
+		return nm_gvalue_ip6_route_compare (value1, value2);
+	} else {
+		g_warning ("Don't know how to compare structures");
+		return (value1 == value2);
+	}
+}
+
+gint
+nm_gvalues_compare (const GValue *value1, const GValue *value2)
+{
+	GType type1;
+	GType type2;
+	gint ret;
+
+	if (value1 == value2)
+		return 0;
+	if (!value1)
+		return 1;
+	if (!value2)
+		return -1;
+
+	type1 = G_VALUE_TYPE (value1);
+	type2 = G_VALUE_TYPE (value2);
+
+	if (type1 != type2)
+		return type1 < type2 ? -1 : type1 > type2;
+
+	if (type_is_fixed_size (type1, NULL))
+		ret = nm_gvalues_compare_fixed (value1, value2);
+	else if (type1 == G_TYPE_STRING) 
+		ret = nm_gvalues_compare_string (value1, value2);
+	else if (G_VALUE_HOLDS_BOXED (value1)) {
+		gpointer p1 = g_value_get_boxed (value1);
+		gpointer p2 = g_value_get_boxed (value2);
+
+		if (p1 == p2)
+			ret = 0; /* Exactly the same values */
+		else if (!p1)
+			ret = 1; /* The comparision functions below don't handle NULLs */
+		else if (!p2)
+			ret = -1; /* The comparision functions below don't handle NULLs */
+		else if (type1 == G_TYPE_STRV)
+			ret = nm_gvalues_compare_strv (value1, value2);
+		else if (dbus_g_type_is_collection (type1))
+			ret = nm_gvalues_compare_collection (value1, value2);
+		else if (dbus_g_type_is_map (type1))
+			ret = nm_gvalues_compare_map (value1, value2);
+		else if (dbus_g_type_is_struct (type1))
+			ret = nm_gvalues_compare_struct (value1, value2);
+		else if (type1 == G_TYPE_VALUE)
+			ret = nm_gvalues_compare ((GValue *) g_value_get_boxed (value1), (GValue *) g_value_get_boxed (value2));
+		else {
+			g_warning ("Don't know how to compare boxed types '%s'", g_type_name (type1));
+			ret = value1 == value2;
+		}
+	} else {
+		g_warning ("Don't know how to compare types '%s'", g_type_name (type1));
+		ret = value1 == value2;
+	}
+
+	return ret;
+}
+
+/***********************************************************/
+
+static void
+param_specialized_init (GParamSpec *pspec)
+{
+}
+
+static void
+param_specialized_set_default (GParamSpec *pspec, GValue *value)
+{
+	value->data[0].v_pointer = NULL;
+}
+
+static gboolean
+param_specialized_validate (GParamSpec *pspec, GValue *value)
+{
+	NMParamSpecSpecialized *sspec = NM_PARAM_SPEC_SPECIALIZED (pspec);
+	GType value_type = G_VALUE_TYPE (value);
+	gboolean changed = FALSE;
+
+	if (!g_value_type_compatible (value_type, G_PARAM_SPEC_VALUE_TYPE (sspec))) {
+		g_value_reset (value);
+		changed = TRUE;
+	}
+
+	return changed;
+}
+
+static gint
+param_specialized_values_cmp (GParamSpec *pspec,
+						const GValue *value1,
+						const GValue *value2)
+{
+	return nm_gvalues_compare (value1, value2);
+}
+
+GType
+_nm_param_spec_specialized_get_type (void)
+{
+	static GType type;
+
+	if (G_UNLIKELY (type) == 0) {
+		static const GParamSpecTypeInfo pspec_info = {
+			sizeof (NMParamSpecSpecialized),
+			0,
+			param_specialized_init,
+			G_TYPE_OBJECT, /* value_type */
+			NULL,          /* finalize */
+			param_specialized_set_default,
+			param_specialized_validate,
+			param_specialized_values_cmp,
+		};
+		type = g_param_type_register_static ("NMParamSpecSpecialized", &pspec_info);
+	}
+
+	return type;
+}
+
+GParamSpec *
+_nm_param_spec_specialized (const char *name,
+					  const char *nick,
+					  const char *blurb,
+					  GType specialized_type,
+					  GParamFlags flags)
+{
+	NMParamSpecSpecialized *pspec;
+
+	g_return_val_if_fail (g_type_is_a (specialized_type, G_TYPE_BOXED), NULL);
+
+	pspec = g_param_spec_internal (NM_TYPE_PARAM_SPEC_SPECIALIZED,
+							 name, nick, blurb, flags);
+
+	G_PARAM_SPEC (pspec)->value_type = specialized_type;
+
+	return G_PARAM_SPEC (pspec);
+}
+
+/***********************************************************/
+/* Tests */
+
+#if 0
+
+static void
+compare_ints (void)
+{
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+
+	g_value_init (&value1, G_TYPE_INT);
+	g_value_init (&value2, G_TYPE_INT);
+
+	g_value_set_int (&value1, 5);
+	g_value_set_int (&value2, 5);
+	g_print ("Comparing ints 5 and 5: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_int (&value2, 10);
+	g_print ("Comparing ints 5 and 10: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_int (&value2, 1);
+	g_print ("Comparing ints 5 and 1: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+static void
+compare_strings (void)
+{
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+	const char *str1 = "hello";
+	const char *str2 = "world";
+
+	g_value_init (&value1, G_TYPE_STRING);
+	g_value_init (&value2, G_TYPE_STRING);
+
+	g_value_set_string (&value1, str1);
+	g_value_set_string (&value2, str1);
+	g_print ("Comparing identical strings: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_string (&value2, str2);
+	g_print ("Comparing different strings: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+static void
+compare_strv (void)
+{
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+	char *strv1[] = { "foo", "bar", "baz", NULL };
+	char *strv2[] = { "foo", "bar", "bar", NULL };
+	char *strv3[] = { "foo", "bar", NULL };
+	char *strv4[] = { "foo", "bar", "baz", "bam", NULL };
+
+	g_value_init (&value1, G_TYPE_STRV);
+	g_value_init (&value2, G_TYPE_STRV);
+
+	g_value_set_boxed (&value1, strv1);
+	g_value_set_boxed (&value2, strv1);
+	g_print ("Comparing identical strv's: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_boxed (&value2, strv2);
+	g_print ("Comparing different strv's: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_boxed (&value2, strv3);
+	g_print ("Comparing different len (smaller) strv's: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_boxed (&value2, strv4);
+	g_print ("Comparing different len (longer) strv's: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+static void
+compare_garrays (void)
+{
+	GArray *array1;
+	GArray *array2;
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+	int i;
+
+	g_value_init (&value1, DBUS_TYPE_G_UINT_ARRAY);
+	array1 = g_array_new (FALSE, FALSE, sizeof (guint32));
+
+	g_value_init (&value2, DBUS_TYPE_G_UINT_ARRAY);
+	array2 = g_array_new (FALSE, FALSE, sizeof (guint32));
+
+	for (i = 0; i < 5; i++) {
+		g_array_append_val (array1, i);
+		g_array_append_val (array2, i);
+	}
+
+	g_value_set_boxed (&value1, array1);
+	g_value_set_boxed (&value2, array2);
+
+	g_print ("Comparing identical arrays's: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_array_remove_index (array2, 0);
+	g_value_set_boxed (&value2, array2);
+	g_print ("Comparing different length arrays's: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	i = 7;
+	g_array_prepend_val (array2, i);
+	g_value_set_boxed (&value2, array2);
+	g_print ("Comparing different arrays's: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+static void
+compare_ptrarrays (void)
+{
+	GPtrArray *array1;
+	GPtrArray *array2;
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+
+	g_value_init (&value1, dbus_g_type_get_collection ("GPtrArray", G_TYPE_STRING));
+	array1 = g_ptr_array_new ();
+
+	g_value_init (&value2, dbus_g_type_get_collection ("GPtrArray", G_TYPE_STRING));
+	array2 = g_ptr_array_new ();
+
+	g_ptr_array_add (array1, "hello");
+	g_ptr_array_add (array1, "world");
+	g_value_set_boxed (&value1, array1);
+
+	g_ptr_array_add (array2, "hello");
+	g_ptr_array_add (array2, "world");
+	g_value_set_boxed (&value2, array2);
+
+	g_print ("Comparing identical ptr arrays's: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_ptr_array_add (array2, "boo");
+	g_value_set_boxed (&value2, array2);
+	g_print ("Comparing different len ptr arrays's: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_ptr_array_add (array1, "booz");
+	g_value_set_boxed (&value1, array1);
+	g_print ("Comparing different ptr arrays's: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+static void
+compare_str_hash (void)
+{
+	GHashTable *hash1;
+	GHashTable *hash2;
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+
+	g_value_init (&value1, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_STRING));
+	g_value_init (&value2, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_STRING));
+
+	hash1 = g_hash_table_new (g_str_hash, g_str_equal);
+	hash2 = g_hash_table_new (g_str_hash, g_str_equal);
+
+	g_hash_table_insert (hash1, "key1", "hello");
+	g_hash_table_insert (hash1, "key2", "world");
+
+	g_hash_table_insert (hash2, "key1", "hello");
+	g_hash_table_insert (hash2, "key2", "world");
+
+	g_value_set_boxed (&value1, hash1);
+	g_value_set_boxed (&value2, hash2);
+	g_print ("Comparing identical str hashes: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_hash_table_remove (hash2, "key2");
+	g_value_set_boxed (&value2, hash2);
+	g_print ("Comparing different length str hashes: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_hash_table_insert (hash2, "key2", "moon");
+	g_value_set_boxed (&value2, hash2);
+	g_print ("Comparing different str hashes: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+static GValue *
+str_to_gvalue (const char *str)
+{
+	GValue *value;
+
+	value = g_slice_new0 (GValue);
+	g_value_init (value, G_TYPE_STRING);
+	g_value_set_string (value, str);
+
+	return value;
+}
+
+static GValue *
+int_to_gvalue (int i)
+{
+	GValue *value;
+
+	value = g_slice_new0 (GValue);
+	g_value_init (value, G_TYPE_INT);
+	g_value_set_int (value, i);
+
+	return value;
+}
+
+static void
+compare_gvalue_hash (void)
+{
+	GHashTable *hash1;
+	GHashTable *hash2;
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+
+	g_value_init (&value1, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_VALUE));
+	g_value_init (&value2, dbus_g_type_get_map ("GHashTable", G_TYPE_STRING, G_TYPE_VALUE));
+
+	hash1 = g_hash_table_new (g_str_hash, g_str_equal);
+	hash2 = g_hash_table_new (g_str_hash, g_str_equal);
+
+	g_hash_table_insert (hash1, "key1", str_to_gvalue ("hello"));
+	g_hash_table_insert (hash1, "key2", int_to_gvalue (5));
+
+	g_hash_table_insert (hash2, "key1", str_to_gvalue ("hello"));
+	g_hash_table_insert (hash2, "key2", int_to_gvalue (5));
+
+	g_value_set_boxed (&value1, hash1);
+	g_value_set_boxed (&value2, hash2);
+	g_print ("Comparing identical gvalue hashes: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_hash_table_remove (hash2, "key2");
+	g_value_set_boxed (&value2, hash2);
+	g_print ("Comparing different length str hashes: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_hash_table_insert (hash2, "key2", str_to_gvalue ("moon"));
+	g_value_set_boxed (&value2, hash2);
+	g_print ("Comparing different str hashes: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+static void
+compare_ip6_addresses (void)
+{
+	GValueArray *array1;
+	GValueArray *array2;
+	GValueArray *array3;
+	GByteArray *ba1;
+	GByteArray *ba2;
+	GByteArray *ba3;
+	GValue element = { 0 };
+	GValue value1 = { 0 };
+	GValue value2 = { 0 };
+	struct in6_addr addr1;
+	struct in6_addr addr2;
+	struct in6_addr addr3;
+	guint32 prefix1 = 64;
+	guint32 prefix2 = 64;
+	guint32 prefix3 = 0;
+
+	inet_pton (AF_INET6, "1:2:3:4:5:6:7:8", &addr1, sizeof (struct in6_addr));
+	inet_pton (AF_INET6, "ffff:2:3:4:5:6:7:8", &addr2, sizeof (struct in6_addr));
+	inet_pton (AF_INET6, "::", &addr3, sizeof (struct in6_addr));
+
+	/* address 1 */
+	ba1 = g_byte_array_new ();
+	array1 = g_value_array_new (2);
+	g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
+	g_byte_array_append (ba1, (guint8 *) addr1.s6_addr, 16);
+	g_value_take_boxed (&element, ba1);
+	g_value_array_append (array1, &element);
+	g_value_unset (&element);
+
+	g_value_init (&element, G_TYPE_UINT);
+	g_value_set_uint (&element, prefix1);
+	g_value_array_append (array1, &element);
+	g_value_unset (&element);
+
+	/* address 2 */
+	ba2 = g_byte_array_new ();
+	array2 = g_value_array_new (2);
+	g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
+	g_byte_array_append (ba2, (guint8 *) addr2.s6_addr, 16);
+	g_value_take_boxed (&element, ba2);
+	g_value_array_append (array2, &element);
+	g_value_unset (&element);
+
+	g_value_init (&element, G_TYPE_UINT);
+	g_value_set_uint (&element, prefix2);
+	g_value_array_append (array2, &element);
+	g_value_unset (&element);
+
+	/* address 3 */
+	ba3 = g_byte_array_new ();
+	array3 = g_value_array_new (2);
+	g_value_init (&element, DBUS_TYPE_G_UCHAR_ARRAY);
+	g_byte_array_append (ba3, (guint8 *) addr3.s6_addr, 16);
+	g_value_take_boxed (&element, ba3);
+	g_value_array_append (array3, &element);
+	g_value_unset (&element);
+
+	g_value_init (&element, G_TYPE_UINT);
+	g_value_set_uint (&element, prefix3);
+	g_value_array_append (array3, &element);
+	g_value_unset (&element);
+
+	g_value_init (&value1, DBUS_TYPE_G_IP6_ADDRESS);
+	g_value_init (&value2, DBUS_TYPE_G_IP6_ADDRESS);
+
+	g_value_set_boxed (&value1, array1);
+	g_value_set_boxed (&value2, array1);
+	g_print ("Comparing identical IPv6 address structures: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_boxed (&value1, array1);
+	g_value_set_boxed (&value2, array2);
+	g_print ("Comparing different IPv6 address structures: %d\n", nm_gvalues_compare (&value1, &value2));
+
+	g_value_set_boxed (&value1, array1);
+	g_value_set_boxed (&value2, array3);
+	g_print ("Comparing different IPv6 address structures: %d\n", nm_gvalues_compare (&value1, &value2));
+}
+
+int
+main (int argc, char *argv[])
+{
+	DBusGConnection *bus;
+
+	g_type_init ();
+	bus = dbus_g_bus_get (DBUS_BUS_SESSION, NULL);
+
+	compare_ints ();
+	compare_strings ();
+	compare_strv ();
+	compare_garrays ();
+	compare_ptrarrays ();
+	compare_str_hash ();
+	compare_gvalue_hash ();
+	compare_ip6_addresses ();
+
+	return 0;
+}
+
+#endif