/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */

/*
 * 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 2007 - 2013 Red Hat, Inc.
 * Copyright 2007 - 2008 Novell, Inc.
 */

#include "config.h"

#include <string.h>

#include "nm-utils.h"
#include "nm-dbus-glib-types.h"
#include "nm-param-spec-specialized.h"
#include "nm-setting-connection.h"
#include "nm-setting-private.h"

/**
 * SECTION:nm-setting-connection
 * @short_description: Describes general connection properties
 * @include: nm-setting-connection.h
 *
 * The #NMSettingConnection object is a #NMSetting subclass that describes
 * properties that apply to all #NMConnection objects, regardless of what type
 * of network connection they describe.  Each #NMConnection object must contain
 * a #NMSettingConnection setting.
 **/

/**
 * nm_setting_connection_error_quark:
 *
 * Registers an error quark for #NMSettingConnection if necessary.
 *
 * Returns: the error quark used for #NMSettingConnection errors.
 **/
GQuark
nm_setting_connection_error_quark (void)
{
	static GQuark quark;

	if (G_UNLIKELY (!quark))
		quark = g_quark_from_static_string ("nm-setting-connection-error-quark");
	return quark;
}


G_DEFINE_TYPE_WITH_CODE (NMSettingConnection, nm_setting_connection, NM_TYPE_SETTING,
                         _nm_register_setting (NM_SETTING_CONNECTION_SETTING_NAME,
                                               g_define_type_id,
                                               0,
                                               NM_SETTING_CONNECTION_ERROR))
NM_SETTING_REGISTER_TYPE (NM_TYPE_SETTING_CONNECTION)

#define NM_SETTING_CONNECTION_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_SETTING_CONNECTION, NMSettingConnectionPrivate))

typedef enum {
	PERM_TYPE_USER = 0,
} PermType;

typedef struct {
	guint8 ptype;
	char *item;
} Permission;

typedef struct {
	char *id;
	char *uuid;
	char *interface_name;
	char *type;
	char *master;
	char *slave_type;
	GSList *permissions; /* list of Permission structs */
	gboolean autoconnect;
	guint64 timestamp;
	gboolean read_only;
	char *zone;
	GSList *secondaries; /* secondary connections to activate with the base connection */
	guint gateway_ping_timeout;
} NMSettingConnectionPrivate;

enum {
	PROP_0,
	PROP_ID,
	PROP_UUID,
	PROP_INTERFACE_NAME,
	PROP_TYPE,
	PROP_PERMISSIONS,
	PROP_AUTOCONNECT,
	PROP_TIMESTAMP,
	PROP_READ_ONLY,
	PROP_ZONE,
	PROP_MASTER,
	PROP_SLAVE_TYPE,
	PROP_SECONDARIES,
	PROP_GATEWAY_PING_TIMEOUT,

	LAST_PROP
};

/***********************************************************************/

#define PERM_USER_PREFIX  "user:"

static Permission *
permission_new_from_str (const char *str)
{
	Permission *p;
	const char *last_colon;
	size_t ulen = 0, i;

	g_return_val_if_fail (strncmp (str, PERM_USER_PREFIX, strlen (PERM_USER_PREFIX)) == 0, NULL);
	str += strlen (PERM_USER_PREFIX);

	last_colon = strrchr (str, ':');
	if (last_colon) {
		/* Ensure that somebody didn't pass "user::" */
		g_return_val_if_fail (last_colon > str, NULL);

		/* Reject :[detail] for now */
		g_return_val_if_fail (*(last_colon + 1) == '\0', NULL);

		/* Make sure we don't include detail in the username */
		ulen = last_colon - str;
	} else
		ulen = strlen (str);

	/* Sanity check the length of the username */
	g_return_val_if_fail (ulen < 100, NULL);

	/* Make sure there's no ':' in the username */
	for (i = 0; i < ulen; i++)
		g_return_val_if_fail (str[i] != ':', NULL);

	/* And the username must be valid UTF-8 */
	g_return_val_if_fail (g_utf8_validate (str, -1, NULL) == TRUE, NULL);

	/* Yay, valid... create the new permission */
	p = g_slice_new0 (Permission);
	p->ptype = PERM_TYPE_USER;
	if (last_colon) {
		p->item = g_malloc (ulen + 1);
		memcpy (p->item, str, ulen);
		p->item[ulen] = '\0';
	} else
		p->item = g_strdup (str);

	return p;
}

static Permission *
permission_new (const char *uname)
{
	Permission *p;

	g_return_val_if_fail (uname, NULL);
	g_return_val_if_fail (uname[0] != '\0', NULL);
	g_return_val_if_fail (strchr (uname, ':') == NULL, NULL);
	g_return_val_if_fail (g_utf8_validate (uname, -1, NULL) == TRUE, NULL);

	/* Yay, valid... create the new permission */
	p = g_slice_new0 (Permission);
	p->ptype = PERM_TYPE_USER;
	p->item = g_strdup (uname);
	return p;
}

static char *
permission_to_string (Permission *p)
{
	return g_strdup_printf (PERM_USER_PREFIX "%s:", p->item);
}

static void
permission_free (Permission *p)
{
	g_free (p->item);
	memset (p, 0, sizeof (*p));
	g_slice_free (Permission, p);
}

/***********************************************************************/

/**
 * nm_setting_connection_new:
 *
 * Creates a new #NMSettingConnection object with default values.
 *
 * Returns: the new empty #NMSettingConnection object
 **/
NMSetting *nm_setting_connection_new (void)
{
	return (NMSetting *) g_object_new (NM_TYPE_SETTING_CONNECTION, NULL);
}

/**
 * nm_setting_connection_get_id:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:id property of the connection.
 *
 * Returns: the connection ID
 **/
const char *
nm_setting_connection_get_id (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->id;
}

/**
 * nm_setting_connection_get_uuid:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:uuid property of the connection.
 *
 * Returns: the connection UUID
 **/
const char *
nm_setting_connection_get_uuid (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->uuid;
}

/**
 * nm_setting_connection_get_interface_name:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:interface-name property of the connection.
 *
 * Returns: the connection's interface name
 *
 * Since: 0.9.10
 **/
const char *
nm_setting_connection_get_interface_name (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->interface_name;
}

/**
 * nm_setting_connection_get_connection_type:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:type property of the connection.
 *
 * Returns: the connection type
 **/
const char *
nm_setting_connection_get_connection_type (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->type;
}


/**
 * nm_setting_connection_get_num_permissions:
 * @setting: the #NMSettingConnection
 *
 * Returns the number of entires in the #NMSettingConnection:permissions
 * property of this setting.
 *
 * Returns: the number of permissions entires
 */
guint32
nm_setting_connection_get_num_permissions (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), 0);

	return g_slist_length (NM_SETTING_CONNECTION_GET_PRIVATE (setting)->permissions);
}

/**
 * nm_setting_connection_get_permission:
 * @setting: the #NMSettingConnection
 * @idx: the zero-based index of the permissions entry
 * @out_ptype: on return, the permission type (at this time, always "user")
 * @out_pitem: on return, the permission item (formatted accoring to @ptype, see
 * #NMSettingConnection:permissions for more detail
 * @out_detail: on return, the permission detail (at this time, always %NULL)
 *
 * Retrieve one of the entries of the #NMSettingConnection:permissions property
 * of this setting.
 *
 * Returns: %TRUE if a permission was returned, %FALSE if @idx was invalid
 */
gboolean
nm_setting_connection_get_permission (NMSettingConnection *setting,
                                      guint32 idx,
                                      const char **out_ptype,
                                      const char **out_pitem,
                                      const char **out_detail)
{
	NMSettingConnectionPrivate *priv;
	Permission *p;

	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);

	g_return_val_if_fail (idx < g_slist_length (priv->permissions), FALSE);

	p = g_slist_nth_data (priv->permissions, idx);
	if (out_ptype)
		*out_ptype = "user";
	if (out_pitem)
		*out_pitem = p->item;
	if (out_detail)
		*out_detail = NULL;

	return TRUE;
}

/**
 * nm_setting_connection_permissions_user_allowed:
 * @setting: the #NMSettingConnection
 * @uname: the user name to check permissions for
 *
 * Checks whether the given username is allowed to view/access this connection.
 *
 * Returns: %TRUE if the requested user is allowed to view this connection,
 * %FALSE if the given user is not allowed to view this connection
 */
gboolean
nm_setting_connection_permissions_user_allowed (NMSettingConnection *setting,
                                                const char *uname)
{
	NMSettingConnectionPrivate *priv;
	GSList *iter;

	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);
	g_return_val_if_fail (uname != NULL, FALSE);
	g_return_val_if_fail (*uname != '\0', FALSE);

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);

	/* If no permissions, visible to all */
	if (priv->permissions == NULL)
		return TRUE;

	/* Find the username in the permissions list */
	for (iter = priv->permissions; iter; iter = g_slist_next (iter)) {
		Permission *p = iter->data;

		if (strcmp (uname, p->item) == 0)
			return TRUE;
	}

	return FALSE;
}

/**
 * nm_setting_connection_add_permission:
 * @setting: the #NMSettingConnection
 * @ptype: the permission type; at this time only "user" is supported
 * @pitem: the permission item formatted as required for @ptype
 * @detail: (allow-none): unused at this time; must be %NULL
 *
 * Adds a permission to the connection's permission list.  At this time, only
 * the "user" permission type is supported, and @pitem must be a username. See
 * #NMSettingConnection:permissions: for more details.
 *
 * Returns: %TRUE if the permission was unique and was successfully added to the
 * list, %FALSE if @ptype or @pitem was invalid or it the permission was already
 * present in the list
 */
gboolean
nm_setting_connection_add_permission (NMSettingConnection *setting,
                                      const char *ptype,
                                      const char *pitem,
                                      const char *detail)
{
	NMSettingConnectionPrivate *priv;
	Permission *p;
	GSList *iter;

	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);
	g_return_val_if_fail (ptype, FALSE);
	g_return_val_if_fail (strlen (ptype) > 0, FALSE);
	g_return_val_if_fail (detail == NULL, FALSE);

	/* Only "user" for now... */
	g_return_val_if_fail (strcmp (ptype, "user") == 0, FALSE);

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);

	/* No dupes */
	for (iter = priv->permissions; iter; iter = g_slist_next (iter)) {
		p = iter->data;
		if (strcmp (pitem, p->item) == 0)
			return FALSE;
	}

	p = permission_new (pitem);
	g_return_val_if_fail (p != NULL, FALSE);
	priv->permissions = g_slist_append (priv->permissions, p);
	g_object_notify (G_OBJECT (setting), NM_SETTING_CONNECTION_PERMISSIONS);

	return TRUE;
}

/**
 * nm_setting_connection_remove_permission:
 * @setting: the #NMSettingConnection
 * @idx: the zero-based index of the permission to remove
 *
 * Removes the permission at index @idx from the connection.
 */
void
nm_setting_connection_remove_permission (NMSettingConnection *setting,
                                         guint32 idx)
{
	NMSettingConnectionPrivate *priv;
	GSList *iter;

	g_return_if_fail (NM_IS_SETTING_CONNECTION (setting));

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);
	iter = g_slist_nth (priv->permissions, idx);
	g_return_if_fail (iter != NULL);

	permission_free ((Permission *) iter->data);
	priv->permissions = g_slist_delete_link (priv->permissions, iter);
	g_object_notify (G_OBJECT (setting), NM_SETTING_CONNECTION_PERMISSIONS);
}

/**
 * nm_setting_connection_remove_permission_by_value:
 * @setting: the #NMSettingConnection
 * @ptype: the permission type; at this time only "user" is supported
 * @pitem: the permission item formatted as required for @ptype
 * @detail: (allow-none): unused at this time; must be %NULL
 *
 * Removes the permission from the connection.
 * At this time, only the "user" permission type is supported, and @pitem must
 * be a username. See #NMSettingConnection:permissions: for more details.
 *
 * Returns: %TRUE if the permission was found and removed; %FALSE if it was not.
 *
 * Since: 0.9.10
 */
gboolean
nm_setting_connection_remove_permission_by_value (NMSettingConnection *setting,
                                                  const char *ptype,
                                                  const char *pitem,
                                                  const char *detail)
{
	NMSettingConnectionPrivate *priv;
	Permission *p;
	GSList *iter;

	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);
	g_return_val_if_fail (ptype, FALSE);
	g_return_val_if_fail (strlen (ptype) > 0, FALSE);
	g_return_val_if_fail (detail == NULL, FALSE);

	/* Only "user" for now... */
	g_return_val_if_fail (strcmp (ptype, "user") == 0, FALSE);

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);
	for (iter = priv->permissions; iter; iter = g_slist_next (iter)) {
		p = iter->data;
		if (strcmp (pitem, p->item) == 0) {
			permission_free ((Permission *) iter->data);
			priv->permissions = g_slist_delete_link (priv->permissions, iter);
			g_object_notify (G_OBJECT (setting), NM_SETTING_CONNECTION_PERMISSIONS);
			return TRUE;
		}
	}
	return FALSE;
}

/**
 * nm_setting_connection_get_autoconnect:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:autoconnect property of the connection.
 *
 * Returns: the connection's autoconnect behavior
 **/
gboolean
nm_setting_connection_get_autoconnect (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->autoconnect;
}

/**
 * nm_setting_connection_get_timestamp:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:timestamp property of the connection.
 *
 * Returns: the connection's timestamp
 **/
guint64
nm_setting_connection_get_timestamp (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), 0);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->timestamp;
}

/**
 * nm_setting_connection_get_read_only:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:read-only property of the connection.
 *
 * Returns: %TRUE if the connection is read-only, %FALSE if it is not
 **/
gboolean
nm_setting_connection_get_read_only (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), TRUE);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->read_only;
}

/**
 * nm_setting_connection_get_zone:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:zone property of the connection.
 *
 * Returns: the trust level of a connection
 **/
const char *
nm_setting_connection_get_zone (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->zone;
}

/**
 * nm_setting_connection_get_master:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:master property of the connection.
 *
 * Returns: interface name of the master device or UUID of the master
 * connection.
 */
const char *
nm_setting_connection_get_master (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->master;
}

/**
 * nm_setting_connection_get_slave_type:
 * @setting: the #NMSettingConnection
 *
 * Returns the #NMSettingConnection:slave-type property of the connection.
 *
 * Returns: the type of slave this connection is, if any
 */
const char *
nm_setting_connection_get_slave_type (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->slave_type;
}

/**
 * nm_setting_connection_is_slave_type:
 * @setting: the #NMSettingConnection
 * @type: the setting name (ie #NM_SETTING_BOND_SETTING_NAME) to be matched
 * against @setting's slave type
 *
 * Returns: %TRUE if connection is of the given slave @type
 */
gboolean
nm_setting_connection_is_slave_type (NMSettingConnection *setting,
                                     const char *type)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);

	return !g_strcmp0 (NM_SETTING_CONNECTION_GET_PRIVATE (setting)->slave_type, type);
}

/**
 * nm_setting_connection_get_num_secondaries:
 * @setting: the #NMSettingConnection
 *
 * Returns: the number of configured secondary connection UUIDs
 *
 * Since: 0.9.8
 **/
guint32
nm_setting_connection_get_num_secondaries (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), 0);

	return g_slist_length (NM_SETTING_CONNECTION_GET_PRIVATE (setting)->secondaries);
}

/**
 * nm_setting_connection_get_secondary:
 * @setting: the #NMSettingConnection
 * @idx: the zero-based index of the secondary connection UUID entry
 *
 * Returns: the secondary connection UUID at index @idx
 *
 * Since: 0.9.8
 **/
const char *
nm_setting_connection_get_secondary (NMSettingConnection *setting, guint32 idx)
{
	NMSettingConnectionPrivate *priv;

	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), NULL);

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);
	g_return_val_if_fail (idx <= g_slist_length (priv->secondaries), NULL);

	return (const char *) g_slist_nth_data (priv->secondaries, idx);
}

/**
 * nm_setting_connection_add_secondary:
 * @setting: the #NMSettingConnection
 * @sec_uuid: the secondary connection UUID to add
 *
 * Adds a new secondary connetion UUID to the setting.
 *
 * Returns: %TRUE if the secondary connection UUID was added; %FALSE if the UUID
 * was already present
 *
 * Since: 0.9.8
 **/
gboolean
nm_setting_connection_add_secondary (NMSettingConnection *setting,
                                     const char *sec_uuid)
{
	NMSettingConnectionPrivate *priv;
	GSList *iter;

	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);
	g_return_val_if_fail (sec_uuid != NULL, FALSE);
	g_return_val_if_fail (sec_uuid[0] != '\0', FALSE);

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);
	for (iter = priv->secondaries; iter; iter = g_slist_next (iter)) {
		if (!strcmp (sec_uuid, (char *) iter->data))
			return FALSE;
	}

	priv->secondaries = g_slist_append (priv->secondaries, g_strdup (sec_uuid));
	g_object_notify (G_OBJECT (setting), NM_SETTING_CONNECTION_SECONDARIES);
	return TRUE;
}

/**
 * nm_setting_connection_remove_secondary:
 * @setting: the #NMSettingConnection
 * @idx: index number of the secondary connection UUID
 *
 * Removes the secondary coonnection UUID at index @idx.
 *
 * Since: 0.9.8
 **/
void
nm_setting_connection_remove_secondary (NMSettingConnection *setting, guint32 idx)
{
	NMSettingConnectionPrivate *priv;
	GSList *elt;

	g_return_if_fail (NM_IS_SETTING_CONNECTION (setting));

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);
	elt = g_slist_nth (priv->secondaries, idx);
	g_return_if_fail (elt != NULL);

	g_free (elt->data);
	priv->secondaries = g_slist_delete_link (priv->secondaries, elt);
	g_object_notify (G_OBJECT (setting), NM_SETTING_CONNECTION_SECONDARIES);
}

/**
 * nm_setting_connection_remove_secondary_by_value:
 * @setting: the #NMSettingConnection
 * @sec_uuid: the secondary connection UUID to remove
 *
 * Removes the secondary coonnection UUID @sec_uuid.
 *
 * Returns: %TRUE if the secondary connection UUID was found and removed; %FALSE if it was not.
 *
 * Since: 0.9.10
 **/
gboolean
nm_setting_connection_remove_secondary_by_value (NMSettingConnection *setting,
                                                 const char *sec_uuid)
{
	NMSettingConnectionPrivate *priv;
	GSList *iter;

	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), FALSE);
	g_return_val_if_fail (sec_uuid != NULL, FALSE);
	g_return_val_if_fail (sec_uuid[0] != '\0', FALSE);

	priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);
	for (iter = priv->secondaries; iter; iter = g_slist_next (iter)) {
		if (!strcmp (sec_uuid, (char *) iter->data)) {
			priv->secondaries = g_slist_delete_link (priv->secondaries, iter);
			g_object_notify (G_OBJECT (setting), NM_SETTING_CONNECTION_SECONDARIES);
			return TRUE;
		}
	}
	return FALSE;
}

/**
 * nm_setting_connection_get_gateway_ping_timeout:
 * @setting: the #NMSettingConnection
 *
 * Returns: the value contained in the #NMSettingConnection:gateway-ping-timeout
 * property.
 *
 * Since: 0.9.10
 **/
guint32
nm_setting_connection_get_gateway_ping_timeout (NMSettingConnection *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_CONNECTION (setting), 0);

	return NM_SETTING_CONNECTION_GET_PRIVATE (setting)->gateway_ping_timeout;
}


static gboolean
verify (NMSetting *setting, GSList *all_settings, GError **error)
{
	NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);
	gboolean is_slave;
	GSList *iter;

	if (!priv->id) {
		g_set_error_literal (error,
		                     NM_SETTING_CONNECTION_ERROR,
		                     NM_SETTING_CONNECTION_ERROR_MISSING_PROPERTY,
		                     _("property is missing"));
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_ID);
		return FALSE;
	} else if (!strlen (priv->id)) {
		g_set_error_literal (error,
		                     NM_SETTING_CONNECTION_ERROR,
		                     NM_SETTING_CONNECTION_ERROR_INVALID_PROPERTY,
		                     _("property is empty"));
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_ID);
		return FALSE;
	}

	if (!priv->uuid) {
		g_set_error_literal (error,
		                     NM_SETTING_CONNECTION_ERROR,
		                     NM_SETTING_CONNECTION_ERROR_MISSING_PROPERTY,
		                     _("property is missing"));
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_UUID);
		return FALSE;
	} else if (!nm_utils_is_uuid (priv->uuid)) {
		g_set_error (error,
		             NM_SETTING_CONNECTION_ERROR,
		             NM_SETTING_CONNECTION_ERROR_INVALID_PROPERTY,
		             _("'%s' is not a valid UUID"),
		             priv->uuid);
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_UUID);
		return FALSE;
	}

	/* FIXME: previously, verify() set the NMSettingConnection:interface_name property,
	 * thus modifying the setting. verify() should not do this, but keep this not to change
	 * behaviour.
	 */
	if (!priv->interface_name) {
		for (iter = all_settings; iter; iter = iter->next) {
			NMSetting *s_current = iter->data;
			char *virtual_iface_name = NULL;

			if (NM_IS_SETTING_BOND (s_current))
				g_object_get (s_current, NM_SETTING_BOND_INTERFACE_NAME, &virtual_iface_name, NULL);
			else if (NM_IS_SETTING_BRIDGE (s_current))
				g_object_get (s_current, NM_SETTING_BRIDGE_INTERFACE_NAME, &virtual_iface_name, NULL);
			else if (NM_IS_SETTING_TEAM (s_current))
				g_object_get (s_current, NM_SETTING_TEAM_INTERFACE_NAME, &virtual_iface_name, NULL);
			else if (NM_IS_SETTING_VLAN (s_current))
				g_object_get (s_current, NM_SETTING_VLAN_INTERFACE_NAME, &virtual_iface_name, NULL);
			/* For NMSettingInfiniband, virtual_iface_name has no backing field.
			 * No need to set the (unset) interface_name to the default value.
			 **/

			if (virtual_iface_name) {
				if (nm_utils_iface_valid_name (virtual_iface_name)) {
					/* found a new interface name. */
					priv->interface_name = virtual_iface_name;
					break;
				}
				g_free (virtual_iface_name);
			}
		}
	}

	if (priv->interface_name) {
		if (!nm_utils_iface_valid_name (priv->interface_name)) {
			g_set_error (error,
			             NM_SETTING_CONNECTION_ERROR,
			             NM_SETTING_CONNECTION_ERROR_INVALID_PROPERTY,
			             _("'%s' is not a valid interface name"),
			             priv->interface_name);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_INTERFACE_NAME);
			return FALSE;
		}
	}

	if (!priv->type) {
		g_set_error_literal (error,
		                     NM_SETTING_CONNECTION_ERROR,
		                     NM_SETTING_CONNECTION_ERROR_MISSING_PROPERTY,
		                     _("property is missing"));
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_TYPE);
		return FALSE;
	} else if (!strlen (priv->type)) {
		g_set_error_literal (error,
		                     NM_SETTING_CONNECTION_ERROR,
		                     NM_SETTING_CONNECTION_ERROR_INVALID_PROPERTY,
		                     _("property is empty"));
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_TYPE);
		return FALSE;
	}

	/* Make sure the corresponding 'type' item is present */
	if (all_settings && !nm_setting_find_in_list (all_settings, priv->type)) {
		g_set_error (error,
		             NM_SETTING_CONNECTION_ERROR,
		             NM_SETTING_CONNECTION_ERROR_TYPE_SETTING_NOT_FOUND,
		             _("requires presence of '%s' setting in the connection"),
		             priv->type);
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_TYPE);
		return FALSE;
	}

	is_slave = (   priv->slave_type
	            && (   !strcmp (priv->slave_type, NM_SETTING_BOND_SETTING_NAME)
	                || !strcmp (priv->slave_type, NM_SETTING_BRIDGE_SETTING_NAME)
	                || !strcmp (priv->slave_type, NM_SETTING_TEAM_SETTING_NAME)));

	if (priv->slave_type && !is_slave) {
		g_set_error (error,
		             NM_SETTING_CONNECTION_ERROR,
		             NM_SETTING_CONNECTION_ERROR_INVALID_PROPERTY,
		             _("Unknown slave type '%s'"), priv->slave_type);
		g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_SLAVE_TYPE);
		return NM_SETTING_VERIFY_ERROR;
	}

	if (is_slave) {
		if (!priv->master) {
			g_set_error (error,
			             NM_SETTING_CONNECTION_ERROR,
			             NM_SETTING_CONNECTION_ERROR_MISSING_PROPERTY,
			             _("Slave connections need a valid '%s' property"),
			             NM_SETTING_CONNECTION_MASTER);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_MASTER);
			return NM_SETTING_VERIFY_ERROR;
		}
	} else {
		if (priv->master) {
			g_set_error (error,
			             NM_SETTING_CONNECTION_ERROR,
			             NM_SETTING_CONNECTION_ERROR_MISSING_PROPERTY,
			             _("Cannot set '%s' without '%s'"),
			             NM_SETTING_CONNECTION_MASTER, NM_SETTING_CONNECTION_SLAVE_TYPE);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_CONNECTION_SETTING_NAME, NM_SETTING_CONNECTION_SLAVE_TYPE);
			return NM_SETTING_VERIFY_ERROR;
		}
	}

	return TRUE;
}

static gboolean
compare_property (NMSetting *setting,
                  NMSetting *other,
                  const GParamSpec *prop_spec,
                  NMSettingCompareFlags flags)
{
	/* Handle ignore ID */
	if (   (flags & NM_SETTING_COMPARE_FLAG_IGNORE_ID)
	    && g_strcmp0 (prop_spec->name, NM_SETTING_CONNECTION_ID) == 0)
		return TRUE;

	/* Otherwise chain up to parent to handle generic compare */
	return NM_SETTING_CLASS (nm_setting_connection_parent_class)->compare_property (setting, other, prop_spec, flags);
}

static void
nm_setting_connection_init (NMSettingConnection *setting)
{
}

static void
finalize (GObject *object)
{
	NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE (object);

	g_free (priv->id);
	g_free (priv->uuid);
	g_free (priv->interface_name);
	g_free (priv->type);
	g_free (priv->zone);
	g_free (priv->master);
	g_free (priv->slave_type);
	g_slist_free_full (priv->permissions, (GDestroyNotify) permission_free);
	g_slist_free_full (priv->secondaries, g_free);

	G_OBJECT_CLASS (nm_setting_connection_parent_class)->finalize (object);
}

static GSList *
perm_stringlist_to_permlist (GSList *strlist)
{
	GSList *list = NULL, *iter;

	for (iter = strlist; iter; iter = g_slist_next (iter)) {
		Permission *p;

		p = permission_new_from_str ((const char *) iter->data);
		if (p)
			list = g_slist_append (list, p);
	}

	return list;
}

static void
set_property (GObject *object, guint prop_id,
              const GValue *value, GParamSpec *pspec)
{
	NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE (object);

	switch (prop_id) {
	case PROP_ID:
		g_free (priv->id);
		priv->id = g_value_dup_string (value);
		break;
	case PROP_UUID:
		g_free (priv->uuid);
		priv->uuid = g_value_dup_string (value);
		break;
	case PROP_INTERFACE_NAME:
		g_free (priv->interface_name);
		priv->interface_name = g_value_dup_string (value);
		break;
	case PROP_TYPE:
		g_free (priv->type);
		priv->type = g_value_dup_string (value);
		break;
	case PROP_PERMISSIONS:
		g_slist_free_full (priv->permissions, (GDestroyNotify) permission_free);
		priv->permissions = perm_stringlist_to_permlist (g_value_get_boxed (value));
		break;
	case PROP_AUTOCONNECT:
		priv->autoconnect = g_value_get_boolean (value);
		break;
	case PROP_TIMESTAMP:
		priv->timestamp = g_value_get_uint64 (value);
		break;
	case PROP_READ_ONLY:
		priv->read_only = g_value_get_boolean (value);
		break;
	case PROP_ZONE:
		g_free (priv->zone);
		priv->zone = g_value_dup_string (value);
		break;
	case PROP_MASTER:
		g_free (priv->master);
		priv->master = g_value_dup_string (value);
		break;
	case PROP_SLAVE_TYPE:
		g_free (priv->slave_type);
		priv->slave_type = g_value_dup_string (value);
		break;
	case PROP_SECONDARIES:
		g_slist_free_full (priv->secondaries, g_free);
		priv->secondaries = g_value_dup_boxed (value);
		break;
	case PROP_GATEWAY_PING_TIMEOUT:
		priv->gateway_ping_timeout = g_value_get_uint (value);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static GSList *
perm_permlist_to_stringlist (GSList *permlist)
{
	GSList *list = NULL, *iter;

	for (iter = permlist; iter; iter = g_slist_next (iter))
		list = g_slist_append (list, permission_to_string ((Permission *) iter->data));
	return list;
}

static void
get_property (GObject *object, guint prop_id,
              GValue *value, GParamSpec *pspec)
{
	NMSettingConnection *setting = NM_SETTING_CONNECTION (object);
	NMSettingConnectionPrivate *priv = NM_SETTING_CONNECTION_GET_PRIVATE (setting);

	switch (prop_id) {
	case PROP_ID:
		g_value_set_string (value, nm_setting_connection_get_id (setting));
		break;
	case PROP_UUID:
		g_value_set_string (value, nm_setting_connection_get_uuid (setting));
		break;
	case PROP_INTERFACE_NAME:
		g_value_set_string (value, nm_setting_connection_get_interface_name (setting));
		break;
	case PROP_TYPE:
		g_value_set_string (value, nm_setting_connection_get_connection_type (setting));
		break;
	case PROP_PERMISSIONS:
		g_value_take_boxed (value, perm_permlist_to_stringlist (priv->permissions));
		break;
	case PROP_AUTOCONNECT:
		g_value_set_boolean (value, nm_setting_connection_get_autoconnect (setting));
		break;
	case PROP_TIMESTAMP:
		g_value_set_uint64 (value, nm_setting_connection_get_timestamp (setting));
		break;
	case PROP_READ_ONLY:
		g_value_set_boolean (value, nm_setting_connection_get_read_only (setting));
		break;
	case PROP_ZONE:
		g_value_set_string (value, nm_setting_connection_get_zone (setting));
		break;
	case PROP_MASTER:
		g_value_set_string (value, nm_setting_connection_get_master (setting));
		break;
	case PROP_SLAVE_TYPE:
		g_value_set_string (value, nm_setting_connection_get_slave_type (setting));
		break;
	case PROP_SECONDARIES:
		g_value_set_boxed (value, priv->secondaries);
		break;
	case PROP_GATEWAY_PING_TIMEOUT:
		g_value_set_uint (value, priv->gateway_ping_timeout);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
nm_setting_connection_class_init (NMSettingConnectionClass *setting_class)
{
	GObjectClass *object_class = G_OBJECT_CLASS (setting_class);
	NMSettingClass *parent_class = NM_SETTING_CLASS (setting_class);

	g_type_class_add_private (setting_class, sizeof (NMSettingConnectionPrivate));

	/* virtual methods */
	object_class->set_property = set_property;
	object_class->get_property = get_property;
	object_class->finalize     = finalize;
	parent_class->verify       = verify;
	parent_class->compare_property = compare_property;

	/* Properties */

	/**
	 * NMSettingConnection:id:
	 *
	 * A human readable unique identifier for the connection, like "Work Wi-Fi"
	 * or "T-Mobile 3G".
	 **/
	g_object_class_install_property
		(object_class, PROP_ID,
		 g_param_spec_string (NM_SETTING_CONNECTION_ID, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      NM_SETTING_PARAM_FUZZY_IGNORE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:uuid:
	 *
	 * A universally unique identifier for the connection, for example generated
	 * with libuuid.  It should be assigned when the connection is created, and
	 * never changed as long as the connection still applies to the same
	 * network.  For example, it should not be changed when the
	 * #NMSettingConnection:id property or #NMSettingIP4Config changes, but
	 * might need to be re-created when the Wi-Fi SSID, mobile broadband network
	 * provider, or #NMSettingConnection:type property changes.
	 *
	 * The UUID must be in the format "2815492f-7e56-435e-b2e9-246bd7cdc664"
	 * (ie, contains only hexadecimal characters and "-").  A suitable UUID may
	 * be generated by nm_utils_uuid_generate() or
	 * nm_utils_uuid_generate_from_string().
	 **/
	g_object_class_install_property
		(object_class, PROP_UUID,
		 g_param_spec_string (NM_SETTING_CONNECTION_UUID, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      NM_SETTING_PARAM_FUZZY_IGNORE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:interface-name:
	 *
	 * The name of the network interface this connection is bound to. If not
	 * set, then the connection can be attached to any interface of the
	 * appropriate type (subject to restrictions imposed by other settings).
	 *
	 * For software devices this specifies the name of the created device.
	 *
	 * For connection types where interface names cannot easily be made
	 * persistent (e.g. mobile broadband or USB Ethernet), this property should
	 * not be used. Setting this property restricts the interfaces a connection
	 * can be used with, and if interface names change or are reordered the
	 * connection may be applied to the wrong interface.
	 *
	 * Since: 0.9.10
	 **/
	g_object_class_install_property
		(object_class, PROP_INTERFACE_NAME,
		 g_param_spec_string (NM_SETTING_CONNECTION_INTERFACE_NAME, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      NM_SETTING_PARAM_INFERRABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:type:
	 *
	 * Base type of the connection. For hardware-dependent connections, should
	 * contain the setting name of the hardware-type specific setting (ie,
	 * "802-3-ethernet" or "802-11-wireless" or "bluetooth", etc), and for
	 * non-hardware dependent connections like VPN or otherwise, should contain
	 * the setting name of that setting type (ie, "vpn" or "bridge", etc).
	 **/
	g_object_class_install_property
		(object_class, PROP_TYPE,
		 g_param_spec_string (NM_SETTING_CONNECTION_TYPE, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      NM_SETTING_PARAM_INFERRABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:permissions:
	 *
	 * An array of strings defining what access a given user has to this
	 * connection.  If this is %NULL or empty, all users are allowed to access
	 * this connection.  Otherwise a user is allowed to access this connection
	 * if and only if they are in this list. Each entry is of the form
	 * "[type]:[id]:[reserved]"; for example, "user:dcbw:blah".
	 *
	 * At this time only the "user" [type] is allowed.  Any other values are
	 * ignored and reserved for future use.  [id] is the username that this
	 * permission refers to, which may not contain the ":" character. Any
	 * [reserved] information present must be ignored and is reserved for future
	 * use.  All of [type], [id], and [reserved] must be valid UTF-8.
	 */
	g_object_class_install_property
		(object_class, PROP_PERMISSIONS,
		 _nm_param_spec_specialized (NM_SETTING_CONNECTION_PERMISSIONS, "", "",
		                             DBUS_TYPE_G_LIST_OF_STRING,
		                             G_PARAM_READWRITE |
		                             G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:autoconnect:
	 *
	 * Whether or not the connection should be automatically connected by
	 * NetworkManager when the resources for the connection are available.
	 * %TRUE to automatically activate the connection, %FALSE to require manual
	 * intervention to activate the connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_AUTOCONNECT,
		 g_param_spec_boolean (NM_SETTING_CONNECTION_AUTOCONNECT, "", "",
		                       TRUE,
		                       G_PARAM_READWRITE |
		                       G_PARAM_CONSTRUCT |
		                       NM_SETTING_PARAM_FUZZY_IGNORE |
		                       G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:timestamp:
	 *
	 * The time, in seconds since the Unix Epoch, that the connection was last
	 * _successfully_ fully activated.
	 *
	 * NetworkManager updates the connection timestamp periodically when the
	 * connection is active to ensure that an active connection has the latest
	 * timestamp. The property is only meant for reading (changes to this
	 * property will not be preserved).
	 **/
	g_object_class_install_property
		(object_class, PROP_TIMESTAMP,
		 g_param_spec_uint64 (NM_SETTING_CONNECTION_TIMESTAMP, "", "",
		                      0, G_MAXUINT64, 0,
		                      G_PARAM_READWRITE |
		                      G_PARAM_CONSTRUCT |
		                      NM_SETTING_PARAM_FUZZY_IGNORE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:read-only:
	 *
	 * %FALSE if the connection can be modified using the provided settings
	 * service's D-Bus interface with the right privileges, or %TRUE if the
	 * connection is read-only and cannot be modified.
	 **/
	g_object_class_install_property
		(object_class, PROP_READ_ONLY,
		 g_param_spec_boolean (NM_SETTING_CONNECTION_READ_ONLY, "", "",
		                       FALSE,
		                       G_PARAM_READWRITE |
		                       G_PARAM_CONSTRUCT |
		                       NM_SETTING_PARAM_FUZZY_IGNORE |
		                       G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:zone:
	 *
	 * The trust level of a the connection.  Free form case-insensitive string
	 * (for example "Home", "Work", "Public").  %NULL or unspecified zone means
	 * the connection will be placed in the default zone as defined by the
	 * firewall.
	 **/
	g_object_class_install_property
		(object_class, PROP_ZONE,
		 g_param_spec_string (NM_SETTING_CONNECTION_ZONE, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      G_PARAM_CONSTRUCT |
		                      NM_SETTING_PARAM_FUZZY_IGNORE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:master:
	 *
	 * Interface name of the master device or UUID of the master connection.
	 **/
	g_object_class_install_property
		(object_class, PROP_MASTER,
		 g_param_spec_string (NM_SETTING_CONNECTION_MASTER, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      NM_SETTING_PARAM_FUZZY_IGNORE |
		                      NM_SETTING_PARAM_INFERRABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:slave-type:
	 *
	 * Setting name of the device type of this slave's master connection (eg,
	 * %NM_SETTING_BOND_SETTING_NAME), or %NULL if this connection is not a
	 * slave.
	 **/
	g_object_class_install_property
		(object_class, PROP_SLAVE_TYPE,
		 g_param_spec_string (NM_SETTING_CONNECTION_SLAVE_TYPE, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      NM_SETTING_PARAM_FUZZY_IGNORE |
		                      NM_SETTING_PARAM_INFERRABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:secondaries:
	 *
	 * List of connection UUIDs that should be activated when the base
	 * connection itself is activated. Currently only VPN connections are
	 * supported.
	 *
	 * Since: 0.9.8
	 **/
	g_object_class_install_property
		(object_class, PROP_SECONDARIES,
		 _nm_param_spec_specialized (NM_SETTING_CONNECTION_SECONDARIES, "", "",
		                             DBUS_TYPE_G_LIST_OF_STRING,
		                             G_PARAM_READWRITE |
		                             NM_SETTING_PARAM_FUZZY_IGNORE |
		                             G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingConnection:gateway-ping-timeout:
	 *
	 * If greater than zero, delay success of IP addressing until either the
	 * timeout is reached, or an IP gateway replies to a ping.
	 *
	 * Since: 0.9.10
	 **/
	g_object_class_install_property
		(object_class, PROP_GATEWAY_PING_TIMEOUT,
		 g_param_spec_uint (NM_SETTING_CONNECTION_GATEWAY_PING_TIMEOUT, "", "",
		                    0, 30, 0,
		                    G_PARAM_READWRITE |
		                    G_PARAM_CONSTRUCT |
		                    G_PARAM_STATIC_STRINGS));
}