NetworkManager/libnm-util/nm-setting-bond.c

/* -*- 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 2011 - 2013 Red Hat, Inc.
 */

#include "nm-default.h"

#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <dbus/dbus-glib.h>

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

/**
 * SECTION:nm-setting-bond
 * @short_description: Describes connection properties for bonds
 * @include: nm-setting-bond.h
 *
 * The #NMSettingBond object is a #NMSetting subclass that describes properties
 * necessary for bond connections.
 **/

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

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


G_DEFINE_TYPE_WITH_CODE (NMSettingBond, nm_setting_bond, NM_TYPE_SETTING,
                         _nm_register_setting (NM_SETTING_BOND_SETTING_NAME,
                                               g_define_type_id,
                                               1,
                                               NM_SETTING_BOND_ERROR))
NM_SETTING_REGISTER_TYPE (NM_TYPE_SETTING_BOND)

#define NM_SETTING_BOND_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_SETTING_BOND, NMSettingBondPrivate))

typedef struct {
	char *interface_name;
	GHashTable *options;
} NMSettingBondPrivate;

enum {
	PROP_0,
	PROP_INTERFACE_NAME,
	PROP_OPTIONS,
	LAST_PROP
};

enum {
	TYPE_INT,
	TYPE_STR,
	TYPE_BOTH,
	TYPE_IP,
	TYPE_IFNAME,
};

typedef struct {
	const char *opt;
	const char *val;
	guint opt_type;
	guint min;
	guint max;
	char *list[10];
} BondDefault;

static const BondDefault defaults[] = {
	{ NM_SETTING_BOND_OPTION_MODE,             "balance-rr", TYPE_BOTH, 0, 6,
	  { "balance-rr", "active-backup", "balance-xor", "broadcast", "802.3ad", "balance-tlb", "balance-alb", NULL } },
	{ NM_SETTING_BOND_OPTION_MIIMON,           "100",        TYPE_INT, 0, G_MAXINT },
	{ NM_SETTING_BOND_OPTION_DOWNDELAY,        "0",          TYPE_INT, 0, G_MAXINT },
	{ NM_SETTING_BOND_OPTION_UPDELAY,          "0",          TYPE_INT, 0, G_MAXINT },
	{ NM_SETTING_BOND_OPTION_ARP_INTERVAL,     "0",          TYPE_INT, 0, G_MAXINT },
	{ NM_SETTING_BOND_OPTION_ARP_IP_TARGET,    "",           TYPE_IP },
	{ NM_SETTING_BOND_OPTION_ARP_VALIDATE,     "0",          TYPE_BOTH, 0, 3,
	  { "none", "active", "backup", "all", NULL } },
	{ NM_SETTING_BOND_OPTION_PRIMARY,          "",           TYPE_IFNAME },
	{ NM_SETTING_BOND_OPTION_PRIMARY_RESELECT, "0",          TYPE_BOTH, 0, 2,
	  { "always", "better", "failure", NULL } },
	{ NM_SETTING_BOND_OPTION_FAIL_OVER_MAC,    "0",          TYPE_BOTH, 0, 2,
	  { "none", "active", "follow", NULL } },
	{ NM_SETTING_BOND_OPTION_USE_CARRIER,      "1",          TYPE_INT, 0, 1 },
	{ NM_SETTING_BOND_OPTION_AD_SELECT,        "0",          TYPE_BOTH, 0, 2,
	  { "stable", "bandwidth", "count", NULL } },
	{ NM_SETTING_BOND_OPTION_XMIT_HASH_POLICY, "0",          TYPE_BOTH, 0, 2,
	  { "layer2", "layer3+4", "layer2+3", NULL } },
	{ NM_SETTING_BOND_OPTION_RESEND_IGMP,      "1",          TYPE_INT, 0, 255 },
	{ NM_SETTING_BOND_OPTION_LACP_RATE,        "0",          TYPE_BOTH, 0, 1,
	  { "slow", "fast", NULL } },
};

/**
 * nm_setting_bond_new:
 *
 * Creates a new #NMSettingBond object with default values.
 *
 * Returns: (transfer full): the new empty #NMSettingBond object
 **/
NMSetting *
nm_setting_bond_new (void)
{
	return (NMSetting *) g_object_new (NM_TYPE_SETTING_BOND, NULL);
}

/**
 * nm_setting_bond_get_interface_name:
 * @setting: the #NMSettingBond
 *
 * Returns: the #NMSettingBond:interface-name property of the setting
 **/
const char *
nm_setting_bond_get_interface_name (NMSettingBond *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_BOND (setting), NULL);

	return NM_SETTING_BOND_GET_PRIVATE (setting)->interface_name;
}

/**
 * nm_setting_bond_get_num_options:
 * @setting: the #NMSettingBond
 *
 * Returns the number of options that should be set for this bond when it
 * is activated. This can be used to retrieve each option individually
 * using nm_setting_bond_get_option().
 *
 * Returns: the number of bonding options
 **/
guint32
nm_setting_bond_get_num_options (NMSettingBond *setting)
{
	g_return_val_if_fail (NM_IS_SETTING_BOND (setting), 0);

	return g_hash_table_size (NM_SETTING_BOND_GET_PRIVATE (setting)->options);
}

/**
 * nm_setting_bond_get_option:
 * @setting: the #NMSettingBond
 * @idx: index of the desired option, from 0 to
 * nm_setting_bond_get_num_options() - 1
 * @out_name: (out): on return, the name of the bonding option; this
 * value is owned by the setting and should not be modified
 * @out_value: (out): on return, the value of the name of the bonding
 * option; this value is owned by the setting and should not be modified
 *
 * Given an index, return the value of the bonding option at that index.  Indexes
 * are *not* guaranteed to be static across modifications to options done by
 * nm_setting_bond_add_option() and nm_setting_bond_remove_option(),
 * and should not be used to refer to options except for short periods of time
 * such as during option iteration.
 *
 * Returns: %TRUE on success if the index was valid and an option was found,
 * %FALSE if the index was invalid (ie, greater than the number of options
 * currently held by the setting)
 **/
gboolean
nm_setting_bond_get_option (NMSettingBond *setting,
                            guint32 idx,
                            const char **out_name,
                            const char **out_value)
{
	NMSettingBondPrivate *priv;
	GList *keys;
	const char *_key = NULL, *_value = NULL;

	g_return_val_if_fail (NM_IS_SETTING_BOND (setting), FALSE);

	priv = NM_SETTING_BOND_GET_PRIVATE (setting);

	if (idx >= nm_setting_bond_get_num_options (setting))
		return FALSE;

	keys = g_hash_table_get_keys (priv->options);
	_key = g_list_nth_data (keys, idx);
	_value = g_hash_table_lookup (priv->options, _key);

	if (out_name)
		*out_name = _key;
	if (out_value)
		*out_value = _value;

	g_list_free (keys);
	return TRUE;
}

static gboolean
validate_int (const char *name, const char *value, const BondDefault *def)
{
	glong num;
	guint i;

	for (i = 0; i < strlen (value); i++) {
		if (!g_ascii_isdigit (value[i]) && value[i] != '-')
			return FALSE;
	}

	errno = 0;
	num = strtol (value, NULL, 10);
	if (errno)
		return FALSE;
	if (num < def->min || num > def->max)
		return FALSE;

	return TRUE;
}

static gboolean
validate_list (const char *name, const char *value, const BondDefault *def)
{
	guint i;

	for (i = 0; i < G_N_ELEMENTS (def->list) && def->list[i]; i++) {
		if (g_strcmp0 (def->list[i], value) == 0)
			return TRUE;
	}

	/* empty validation list means all values pass */
	return def->list[0] == NULL ? TRUE : FALSE;
}

static gboolean
validate_ip (const char *name, const char *value)
{
	char **ips, **iter;
	gboolean success = TRUE;
	struct in_addr addr;

	if (!value || !value[0])
		return FALSE;

	ips = g_strsplit_set (value, ",", 0);
	for (iter = ips; iter && *iter && success; iter++)
		success = !!inet_aton (*iter, &addr);
	g_strfreev (ips);

	return success;
}

static gboolean
validate_ifname (const char *name, const char *value)
{
	if (!value || !value[0])
		return FALSE;

	return nm_utils_iface_valid_name (value);
}

/**
 * nm_setting_bond_validate_option:
 * @name: the name of the option to validate
 * @value: the value of the option to validate
 *
 * Checks whether @name is a valid bond option and @value is a valid value for
 * the @name. If @value is %NULL, the function only validates the option name.
 *
 * Returns: %TRUE, if the @value is valid for the given name.
 * If the @name is not a valid option, %FALSE will be returned.
 *
 * Since: 0.9.10
 **/
gboolean
nm_setting_bond_validate_option (const char *name,
                                 const char *value)
{
	guint i;

	if (!name || !name[0])
		return FALSE;

	for (i = 0; i < G_N_ELEMENTS (defaults); i++) {
		if (g_strcmp0 (defaults[i].opt, name) == 0) {
			if (value == NULL)
				return TRUE;
			switch (defaults[i].opt_type) {
			case TYPE_INT:
				return validate_int (name, value, &defaults[i]);
			case TYPE_STR:
				return validate_list (name, value, &defaults[i]);
			case TYPE_BOTH:
				return (   validate_int (name, value, &defaults[i])
				        || validate_list (name, value, &defaults[i]));
			case TYPE_IP:
				return validate_ip (name, value);
			case TYPE_IFNAME:
				return validate_ifname (name, value);
			}
			return FALSE;
		}
	}
	return FALSE;
}

/**
 * nm_setting_bond_get_option_by_name:
 * @setting: the #NMSettingBond
 * @name: the option name for which to retrieve the value
 *
 * Returns the value associated with the bonding option specified by
 * @name, if it exists.
 *
 * Returns: the value, or %NULL if the key/value pair was never added to the
 * setting; the value is owned by the setting and must not be modified
 **/
const char *
nm_setting_bond_get_option_by_name (NMSettingBond *setting,
                                    const char *name)
{
	g_return_val_if_fail (NM_IS_SETTING_BOND (setting), NULL);

	if (!nm_setting_bond_validate_option (name, NULL))
		return NULL;

	return g_hash_table_lookup (NM_SETTING_BOND_GET_PRIVATE (setting)->options, name);
}

/**
 * nm_setting_bond_add_option:
 * @setting: the #NMSettingBond
 * @name: name for the option
 * @value: value for the option
 *
 * Add an option to the table.  The option is compared to an internal list
 * of allowed options.  Option names may contain only alphanumeric characters
 * (ie [a-zA-Z0-9]).  Adding a new name replaces any existing name/value pair
 * that may already exist.
 *
 * The order of how to set several options is relevant because there are options
 * that conflict with each other.
 *
 * Returns: %TRUE if the option was valid and was added to the internal option
 * list, %FALSE if it was not.
 **/
gboolean
nm_setting_bond_add_option (NMSettingBond *setting,
                            const char *name,
                            const char *value)
{
	NMSettingBondPrivate *priv;

	g_return_val_if_fail (NM_IS_SETTING_BOND (setting), FALSE);

	if (!value || !nm_setting_bond_validate_option (name, value))
		return FALSE;

	priv = NM_SETTING_BOND_GET_PRIVATE (setting);

	g_hash_table_insert (priv->options, g_strdup (name), g_strdup (value));

	if (   !strcmp (name, NM_SETTING_BOND_OPTION_MIIMON)
	    && strcmp (value, "0") != 0) {
		g_hash_table_remove (priv->options, NM_SETTING_BOND_OPTION_ARP_INTERVAL);
		g_hash_table_remove (priv->options, NM_SETTING_BOND_OPTION_ARP_IP_TARGET);
	} else if (   !strcmp (name, NM_SETTING_BOND_OPTION_ARP_INTERVAL)
	           && strcmp (value, "0") != 0) {
		g_hash_table_remove (priv->options, NM_SETTING_BOND_OPTION_MIIMON);
		g_hash_table_remove (priv->options, NM_SETTING_BOND_OPTION_DOWNDELAY);
		g_hash_table_remove (priv->options, NM_SETTING_BOND_OPTION_UPDELAY);
	}

	g_object_notify (G_OBJECT (setting), NM_SETTING_BOND_OPTIONS);

	return TRUE;
}

/**
 * nm_setting_bond_remove_option:
 * @setting: the #NMSettingBond
 * @name: name of the option to remove
 *
 * Remove the bonding option referenced by @name from the internal option
 * list.
 *
 * Returns: %TRUE if the option was found and removed from the internal option
 * list, %FALSE if it was not.
 **/
gboolean
nm_setting_bond_remove_option (NMSettingBond *setting,
                               const char *name)
{
	gboolean found;

	g_return_val_if_fail (NM_IS_SETTING_BOND (setting), FALSE);

	if (!nm_setting_bond_validate_option (name, NULL))
		return FALSE;

	found = g_hash_table_remove (NM_SETTING_BOND_GET_PRIVATE (setting)->options, name);
	if (found)
		g_object_notify (G_OBJECT (setting), NM_SETTING_BOND_OPTIONS);
	return found;
}

/**
 * nm_setting_bond_get_valid_options:
 * @setting: the #NMSettingBond
 *
 * Returns a list of valid bond options.
 *
 * Returns: (transfer none): a %NULL-terminated array of strings of valid bond options.
 **/
const char **
nm_setting_bond_get_valid_options  (NMSettingBond *setting)
{
	static const char *array[G_N_ELEMENTS (defaults) + 1] = { NULL };
	int i;

	/* initialize the array once */
	if (G_UNLIKELY (array[0] == NULL)) {
		for (i = 0; i < G_N_ELEMENTS (defaults); i++)
			array[i] = defaults[i].opt;
		array[i] = NULL;
	}
	return array;
}

/**
 * nm_setting_bond_get_option_default:
 * @setting: the #NMSettingBond
 * @name: the name of the option
 *
 * Returns: the value of the bond option if not overridden by an entry in
 *   the #NMSettingBond:options property.
 **/
const char *
nm_setting_bond_get_option_default (NMSettingBond *setting, const char *name)
{
	guint i;

	g_return_val_if_fail (NM_IS_SETTING_BOND (setting), NULL);
	g_return_val_if_fail (nm_setting_bond_validate_option (name, NULL), NULL);

	for (i = 0; i < G_N_ELEMENTS (defaults); i++) {
		if (g_strcmp0 (defaults[i].opt, name) == 0)
			return defaults[i].val;
	}
	/* Any option that passes nm_setting_bond_validate_option() should also be found in defaults */
	g_assert_not_reached ();
}

static gboolean
verify (NMSetting *setting, GSList *all_settings, GError **error)
{
	NMSettingBondPrivate *priv = NM_SETTING_BOND_GET_PRIVATE (setting);
	GHashTableIter iter;
	const char *key, *value;
	const char *valid_modes[] = { "balance-rr",
	                              "active-backup",
	                              "balance-xor",
	                              "broadcast",
	                              "802.3ad",
	                              "balance-tlb",
	                              "balance-alb",
	                              NULL };
	int miimon = 0, arp_interval = 0;
	const char *arp_ip_target = NULL;
	const char *lacp_rate;
	const char *primary;

	g_hash_table_iter_init (&iter, priv->options);
	while (g_hash_table_iter_next (&iter, (gpointer) &key, (gpointer) &value)) {
		if (!value[0] || !nm_setting_bond_validate_option (key, value)) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("invalid option '%s' or its value '%s'"),
			             key, value);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
	}

	value = g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_MIIMON);
	if (value)
		miimon = atoi (value);
	value = g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_ARP_INTERVAL);
	if (value)
		arp_interval = atoi (value);

	/* Can only set one of miimon and arp_interval */
	if (miimon > 0 && arp_interval > 0) {
		g_set_error (error,
		             NM_SETTING_BOND_ERROR,
		             NM_SETTING_BOND_ERROR_INVALID_OPTION,
		             _("only one of '%s' and '%s' can be set"),
		             NM_SETTING_BOND_OPTION_MIIMON,
		             NM_SETTING_BOND_OPTION_ARP_INTERVAL);
		g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
	}

	value = g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_MODE);
	if (!value) {
		g_set_error (error,
		             NM_SETTING_BOND_ERROR,
		             NM_SETTING_BOND_ERROR_MISSING_OPTION,
		             _("mandatory option '%s' is missing"),
		             NM_SETTING_BOND_OPTION_MODE);
		g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
		return FALSE;
	}
	if (!_nm_utils_string_in_list (value, valid_modes)) {
		g_set_error (error,
		             NM_SETTING_BOND_ERROR,
		             NM_SETTING_BOND_ERROR_INVALID_OPTION,
		             _("'%s' is not a valid value for '%s'"),
		             value, NM_SETTING_BOND_OPTION_MODE);
		g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
		return FALSE;
	}

	/* Make sure mode is compatible with other settings */
	if (   strcmp (value, "balance-alb") == 0
	    || strcmp (value, "balance-tlb") == 0) {
		if (arp_interval > 0) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s=%s' is incompatible with '%s > 0'"),
			             NM_SETTING_BOND_OPTION_MODE, value, NM_SETTING_BOND_OPTION_ARP_INTERVAL);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
	}

	primary = g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_PRIMARY);
	if (strcmp (value, "active-backup") == 0) {
		if (primary && !nm_utils_iface_valid_name (primary)) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s' is not a valid interface name for '%s' option"),
			             primary, NM_SETTING_BOND_OPTION_PRIMARY);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
	} else {
		if (primary) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s' option is only valid for '%s=%s'"),
			             NM_SETTING_BOND_OPTION_PRIMARY,
			             NM_SETTING_BOND_OPTION_MODE, "active-backup");
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
	}

	if (nm_setting_find_in_list (all_settings, NM_SETTING_INFINIBAND_SETTING_NAME)) {
		if (strcmp (value, "active-backup") != 0) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s=%s' is not a valid configuration for '%s'"),
			             NM_SETTING_BOND_OPTION_MODE, value, NM_SETTING_INFINIBAND_SETTING_NAME);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
	}

	if (miimon == 0) {
		/* updelay and downdelay can only be used with miimon */
		if (g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_UPDELAY)) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s' option requires '%s' option to be set"),
			             NM_SETTING_BOND_OPTION_UPDELAY, NM_SETTING_BOND_OPTION_MIIMON);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
		if (g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_DOWNDELAY)) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s' option requires '%s' option to be set"),
			             NM_SETTING_BOND_OPTION_DOWNDELAY, NM_SETTING_BOND_OPTION_MIIMON);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
	}

	/* arp_ip_target can only be used with arp_interval, and must
	 * contain a comma-separated list of IPv4 addresses.
	 */
	arp_ip_target = g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_ARP_IP_TARGET);
	if (arp_interval > 0) {
		char **addrs;
		guint32 addr;
		int i;

		if (!arp_ip_target) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_MISSING_OPTION,
			             _("'%s' option requires '%s' option to be set"),
			             NM_SETTING_BOND_OPTION_ARP_INTERVAL, NM_SETTING_BOND_OPTION_ARP_IP_TARGET);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}

		addrs = g_strsplit (arp_ip_target, ",", -1);
		if (!addrs[0]) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s' option is empty"),
			             NM_SETTING_BOND_OPTION_ARP_IP_TARGET);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			g_strfreev (addrs);
			return FALSE;
		}

		for (i = 0; addrs[i]; i++) {
			if (!inet_pton (AF_INET, addrs[i], &addr)) {
				g_set_error (error,
				             NM_SETTING_BOND_ERROR,
				             NM_SETTING_BOND_ERROR_INVALID_OPTION,
				             _("'%s' is not a valid IPv4 address for '%s' option"),
				             NM_SETTING_BOND_OPTION_ARP_IP_TARGET, addrs[i]);
				g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
				g_strfreev (addrs);
				return FALSE;
			}
		}
		g_strfreev (addrs);
	} else {
		if (arp_ip_target) {
			g_set_error (error,
			             NM_SETTING_BOND_ERROR,
			             NM_SETTING_BOND_ERROR_INVALID_OPTION,
			             _("'%s' option requires '%s' option to be set"),
			             NM_SETTING_BOND_OPTION_ARP_IP_TARGET, NM_SETTING_BOND_OPTION_ARP_INTERVAL);
			g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
			return FALSE;
		}
	}

	lacp_rate = g_hash_table_lookup (priv->options, NM_SETTING_BOND_OPTION_LACP_RATE);
	if (   lacp_rate
	    && (g_strcmp0 (value, "802.3ad") != 0 && g_strcmp0 (value, "4") != 0)
	    && (strcmp (lacp_rate, "slow") != 0 && strcmp (lacp_rate, "0") != 0)) {
		g_set_error (error,
		             NM_SETTING_BOND_ERROR,
		             NM_SETTING_BOND_ERROR_INVALID_OPTION,
		             _("'%s' option is only valid with mode '%s'"),
		             NM_SETTING_BOND_OPTION_LACP_RATE, "802.3ad");
		g_prefix_error (error, "%s.%s: ", NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_OPTIONS);
		return FALSE;
	}

	return _nm_setting_verify_deprecated_virtual_iface_name (
	         priv->interface_name, FALSE,
	         NM_SETTING_BOND_SETTING_NAME, NM_SETTING_BOND_INTERFACE_NAME,
	         NM_SETTING_BOND_ERROR,
	         NM_SETTING_BOND_ERROR_INVALID_PROPERTY,
	         NM_SETTING_BOND_ERROR_MISSING_PROPERTY,
	         all_settings, error);
}

static const char *
get_virtual_iface_name (NMSetting *setting)
{
	NMSettingBond *self = NM_SETTING_BOND (setting);

	return nm_setting_bond_get_interface_name (self);
}

static void
nm_setting_bond_init (NMSettingBond *setting)
{
	NMSettingBondPrivate *priv = NM_SETTING_BOND_GET_PRIVATE (setting);

	priv->options = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);

	/* Default values: */
	nm_setting_bond_add_option (setting, NM_SETTING_BOND_OPTION_MODE, "balance-rr");
}

static void
finalize (GObject *object)
{
	NMSettingBondPrivate *priv = NM_SETTING_BOND_GET_PRIVATE (object);

	g_free (priv->interface_name);
	g_hash_table_destroy (priv->options);

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

static void
copy_hash (gpointer key, gpointer value, gpointer user_data)
{
	g_hash_table_insert ((GHashTable *) user_data, g_strdup (key), g_strdup (value));
}

static void
set_property (GObject *object, guint prop_id,
              const GValue *value, GParamSpec *pspec)
{
	NMSettingBondPrivate *priv = NM_SETTING_BOND_GET_PRIVATE (object);
	GHashTable *new_hash;

	switch (prop_id) {
	case PROP_INTERFACE_NAME:
		g_free (priv->interface_name);
		priv->interface_name = g_value_dup_string (value);
		break;
	case PROP_OPTIONS:
		/* Must make a deep copy of the hash table here... */
		g_hash_table_remove_all (priv->options);
		new_hash = g_value_get_boxed (value);
		if (new_hash)
			g_hash_table_foreach (new_hash, copy_hash, priv->options);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
get_property (GObject *object, guint prop_id,
              GValue *value, GParamSpec *pspec)
{
	NMSettingBondPrivate *priv = NM_SETTING_BOND_GET_PRIVATE (object);
	NMSettingBond *setting = NM_SETTING_BOND (object);

	switch (prop_id) {
	case PROP_INTERFACE_NAME:
		g_value_set_string (value, nm_setting_bond_get_interface_name (setting));
		break;
	case PROP_OPTIONS:
		g_value_set_boxed (value, priv->options);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
nm_setting_bond_class_init (NMSettingBondClass *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 (NMSettingBondPrivate));

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

	/* Properties */
	/**
	 * NMSettingBond:interface-name:
	 *
	 * The name of the virtual in-kernel bonding network interface
	 **/
	g_object_class_install_property
		(object_class, PROP_INTERFACE_NAME,
		 g_param_spec_string (NM_SETTING_BOND_INTERFACE_NAME, "", "",
		                      NULL,
		                      G_PARAM_READWRITE |
		                      NM_SETTING_PARAM_INFERRABLE |
		                      G_PARAM_STATIC_STRINGS));

	/**
	 * NMSettingBond:options:
	 *
	 * Dictionary of key/value pairs of bonding options.  Both keys and values
	 * must be strings. Option names must contain only alphanumeric characters
	 * (ie, [a-zA-Z0-9]).
	 **/
	 g_object_class_install_property
		 (object_class, PROP_OPTIONS,
		 _nm_param_spec_specialized (NM_SETTING_BOND_OPTIONS, "", "",
		                             DBUS_TYPE_G_MAP_OF_STRING,
		                             G_PARAM_READWRITE |
		                             NM_SETTING_PARAM_INFERRABLE |
		                             G_PARAM_STATIC_STRINGS));
}