Imported Upstream version 0.9.10.0 upstream/0.9.10.0

1 files changed, 612 insertions, 0 deletions

diff --git a/src/devices/nm-device-bond.c b/src/devices/nm-device-bond.c
new file mode 100644
index 00000000..6f8caeb4
--- /dev/null
+++ b/src/devices/nm-device-bond.c
@@ -0,0 +1,612 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+/* NetworkManager -- Network link manager
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Copyright 2011 - 2012 Red Hat, Inc.
+ */
+
+#include "config.h"
+
+#include <glib.h>
+#include <glib/gi18n.h>
+
+#include <netinet/ether.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include "gsystem-local-alloc.h"
+#include "nm-device-bond.h"
+#include "nm-logging.h"
+#include "nm-utils.h"
+#include "NetworkManagerUtils.h"
+#include "nm-device-private.h"
+#include "nm-platform.h"
+#include "nm-dbus-glib-types.h"
+#include "nm-dbus-manager.h"
+#include "nm-enum-types.h"
+
+#include "nm-device-bond-glue.h"
+
+
+G_DEFINE_TYPE (NMDeviceBond, nm_device_bond, NM_TYPE_DEVICE)
+
+#define NM_DEVICE_BOND_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_BOND, NMDeviceBondPrivate))
+
+#define NM_BOND_ERROR (nm_bond_error_quark ())
+
+typedef struct {
+	int dummy;
+} NMDeviceBondPrivate;
+
+enum {
+	PROP_0,
+	PROP_SLAVES,
+
+	LAST_PROP
+};
+
+/******************************************************************/
+
+static GQuark
+nm_bond_error_quark (void)
+{
+	static GQuark quark = 0;
+	if (!quark)
+		quark = g_quark_from_static_string ("nm-bond-error");
+	return quark;
+}
+
+/******************************************************************/
+
+static guint32
+get_generic_capabilities (NMDevice *dev)
+{
+	return NM_DEVICE_CAP_CARRIER_DETECT;
+}
+
+static gboolean
+is_available (NMDevice *dev)
+{
+	if (NM_DEVICE_GET_CLASS (dev)->is_up)
+		return NM_DEVICE_GET_CLASS (dev)->is_up (dev);
+	return FALSE;
+}
+
+static gboolean
+check_connection_available (NMDevice *device,
+                            NMConnection *connection,
+                            const char *specific_object)
+{
+	/* Connections are always available because the carrier state is determined
+	 * by the slave carrier states, not the bonds's state.
+	 */
+	return TRUE;
+}
+
+static gboolean
+check_connection_compatible (NMDevice *device, NMConnection *connection)
+{
+	const char *iface;
+	NMSettingBond *s_bond;
+
+	if (!NM_DEVICE_CLASS (nm_device_bond_parent_class)->check_connection_compatible (device, connection))
+		return FALSE;
+
+	s_bond = nm_connection_get_setting_bond (connection);
+	if (!s_bond || !nm_connection_is_type (connection, NM_SETTING_BOND_SETTING_NAME))
+		return FALSE;
+
+	/* Bond connections must specify the virtual interface name */
+	iface = nm_connection_get_virtual_iface_name (connection);
+	if (!iface || strcmp (nm_device_get_iface (device), iface))
+		return FALSE;
+
+	/* FIXME: match bond properties like mode, etc? */
+
+	return TRUE;
+}
+
+static gboolean
+complete_connection (NMDevice *device,
+                     NMConnection *connection,
+                     const char *specific_object,
+                     const GSList *existing_connections,
+                     GError **error)
+{
+	NMSettingBond *s_bond, *tmp;
+	guint32 i = 0;
+	char *name;
+	const GSList *iter;
+	gboolean found;
+
+	nm_utils_complete_generic (connection,
+	                           NM_SETTING_BOND_SETTING_NAME,
+	                           existing_connections,
+	                           _("Bond connection %d"),
+	                           NULL,
+	                           TRUE);
+
+	s_bond = nm_connection_get_setting_bond (connection);
+	if (!s_bond) {
+		s_bond = (NMSettingBond *) nm_setting_bond_new ();
+		nm_connection_add_setting (connection, NM_SETTING (s_bond));
+	}
+
+	/* Grab the first name that doesn't exist in either our connections
+	 * or a device on the system.
+	 */
+	while (i < 500 && !nm_setting_bond_get_interface_name (s_bond)) {
+		name = g_strdup_printf ("bond%u", i);
+		/* check interface names */
+		if (!nm_platform_link_exists (name)) {
+			/* check existing bond connections */
+			for (iter = existing_connections, found = FALSE; iter; iter = g_slist_next (iter)) {
+				NMConnection *candidate = iter->data;
+
+				tmp = nm_connection_get_setting_bond (candidate);
+				if (tmp && nm_connection_is_type (candidate, NM_SETTING_BOND_SETTING_NAME)) {
+					if (g_strcmp0 (nm_setting_bond_get_interface_name (tmp), name) == 0) {
+						found = TRUE;
+						break;
+					}
+				}
+			}
+
+			if (!found)
+				g_object_set (G_OBJECT (s_bond), NM_SETTING_BOND_INTERFACE_NAME, name, NULL);
+		}
+
+		g_free (name);
+		i++;
+	}
+
+	return TRUE;
+}
+
+/******************************************************************/
+
+static gboolean
+set_bond_attr (NMDevice *device, const char *attr, const char *value)
+{
+	gboolean ret;
+	int ifindex = nm_device_get_ifindex (device);
+
+	ret = nm_platform_master_set_option (ifindex, attr, value);
+	if (!ret) {
+		nm_log_warn (LOGD_HW, "(%s): failed to set bonding attribute "
+		             "'%s' to '%s'", nm_device_get_ip_iface (device), attr, value);
+	}
+	return ret;
+}
+
+/* Ignore certain bond options if they are zero (off/disabled) */
+static gboolean
+ignore_if_zero (const char *option, const char *value)
+{
+	if (strcmp (option, "arp_interval") &&
+	    strcmp (option, "miimon") &&
+	    strcmp (option, "downdelay") &&
+	    strcmp (option, "updelay"))
+		return FALSE;
+
+	return g_strcmp0 (value, "0") == 0 ? TRUE : FALSE;
+}
+
+static void
+update_connection (NMDevice *device, NMConnection *connection)
+{
+	NMSettingBond *s_bond = nm_connection_get_setting_bond (connection);
+	const char *ifname = nm_device_get_iface (device);
+	int ifindex = nm_device_get_ifindex (device);
+	const char **options;
+
+	if (!s_bond) {
+		s_bond = (NMSettingBond *) nm_setting_bond_new ();
+		nm_connection_add_setting (connection, (NMSetting *) s_bond);
+		g_object_set (s_bond, NM_SETTING_BOND_INTERFACE_NAME, ifname, NULL);
+	}
+
+	/* Read bond options from sysfs and update the Bond setting to match */
+	options = nm_setting_bond_get_valid_options (s_bond);
+	while (options && *options) {
+		gs_free char *value = nm_platform_master_get_option (ifindex, *options);
+		const char *defvalue = nm_setting_bond_get_option_default (s_bond, *options);
+
+		if (value && !ignore_if_zero (*options, value) && (g_strcmp0 (value, defvalue) != 0)) {
+			/* Replace " " with "," for arp_ip_targets from the kernel */
+			if (strcmp (*options, "arp_ip_target") == 0) {
+				char *p = value;
+
+				while (p && *p) {
+					if (*p == ' ')
+						*p = ',';
+					p++;
+				}
+			}
+
+			nm_setting_bond_add_option (s_bond, *options, value);
+		}
+		options++;
+	}
+}
+
+static void
+set_arp_targets (NMDevice *device,
+                 const char *value,
+                 const char *delim,
+                 const char *prefix)
+{
+	char **items, **iter, *tmp;
+
+	if (!value || !*value)
+		return;
+
+	items = g_strsplit_set (value, delim, 0);
+	for (iter = items; iter && *iter; iter++) {
+		if (*iter[0]) {
+			tmp = g_strdup_printf ("%s%s", prefix, *iter);
+			set_bond_attr (device, "arp_ip_target", tmp);
+			g_free (tmp);
+		}
+	}
+	g_strfreev (items);
+}
+
+static void
+set_simple_option (NMDevice *device,
+                   const char *attr,
+                   NMSettingBond *s_bond,
+                   const char *opt)
+{
+	const char *value;
+
+	value = nm_setting_bond_get_option_by_name (s_bond, opt);
+	if (!value)
+		value = nm_setting_bond_get_option_default (s_bond, opt);
+	set_bond_attr (device, attr, value);
+}
+
+static NMActStageReturn
+apply_bonding_config (NMDevice *device)
+{
+	NMConnection *connection;
+	NMSettingBond *s_bond;
+	int ifindex = nm_device_get_ifindex (device);
+	const char *mode, *value;
+	char *contents;
+	gboolean set_arp_interval = TRUE;
+
+	/* Option restrictions:
+	 *
+	 * arp_interval conflicts miimon > 0
+	 * arp_interval conflicts [ alb, tlb ]
+	 * arp_validate needs [ active-backup ]
+	 * downdelay needs miimon
+	 * updelay needs miimon
+	 * primary needs [ active-backup, tlb, alb ]
+	 *
+	 * clearing miimon requires that arp_interval be 0, but clearing
+	 *     arp_interval doesn't require miimon to be 0
+	 */
+
+	connection = nm_device_get_connection (device);
+	g_assert (connection);
+	s_bond = nm_connection_get_setting_bond (connection);
+	g_assert (s_bond);
+
+	mode = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_MODE);
+	if (mode == NULL)
+		mode = "balance-rr";
+
+	value = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_MIIMON);
+	if (value && atoi (value)) {
+		/* clear arp interval */
+		set_bond_attr (device, "arp_interval", "0");
+		set_arp_interval = FALSE;
+
+		set_bond_attr (device, "miimon", value);
+		set_simple_option (device, "updelay", s_bond, NM_SETTING_BOND_OPTION_UPDELAY);
+		set_simple_option (device, "downdelay", s_bond, NM_SETTING_BOND_OPTION_DOWNDELAY);
+	} else if (!value) {
+		/* If not given, and arp_interval is not given, default to 100 */
+		long int val_int;
+		char *end;
+
+		value = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_ARP_INTERVAL);
+		errno = 0;
+		val_int = strtol (value ? value : "0", &end, 10);
+		if (!value || (val_int == 0 && errno == 0 && *end == '\0'))
+			set_bond_attr (device, "miimon", "100");
+	}
+
+	/* The stuff after 'mode' requires the given mode or doesn't care */
+	set_bond_attr (device, "mode", mode);
+
+	/* arp_interval not compatible with ALB, TLB */
+	if (g_strcmp0 (mode, "balance-alb") == 0 || g_strcmp0 (mode, "balance-tlb") == 0)
+		set_arp_interval = FALSE;
+
+	if (set_arp_interval) {
+		set_simple_option (device, "arp_interval", s_bond, NM_SETTING_BOND_OPTION_ARP_INTERVAL);
+
+		/* Just let miimon get cleared automatically; even setting miimon to
+		 * 0 (disabled) clears arp_interval.
+		 */
+	}
+
+	value = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_ARP_VALIDATE);
+	/* arp_validate > 0 only valid in active-backup mode */
+	if (   value
+	    && g_strcmp0 (value, "0") != 0
+	    && g_strcmp0 (value, "none") != 0
+	    && g_strcmp0 (mode, "active-backup") == 0)
+		set_bond_attr (device, "arp_validate", value);
+	else
+		set_bond_attr (device, "arp_validate", "0");
+
+	if (   g_strcmp0 (mode, "active-backup") == 0
+	    || g_strcmp0 (mode, "balance-alb") == 0
+	    || g_strcmp0 (mode, "balance-tlb") == 0) {
+		value = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_PRIMARY);
+		set_bond_attr (device, "primary", value ? value : "");
+	}
+
+	/* Clear ARP targets */
+	contents = nm_platform_master_get_option (ifindex, "arp_ip_target");
+	set_arp_targets (device, contents, " \n", "-");
+	g_free (contents);
+
+	/* Add new ARP targets */
+	value = nm_setting_bond_get_option_by_name (s_bond, NM_SETTING_BOND_OPTION_ARP_IP_TARGET);
+	set_arp_targets (device, value, ",", "+");
+
+	set_simple_option (device, "primary_reselect", s_bond, NM_SETTING_BOND_OPTION_PRIMARY_RESELECT);
+	set_simple_option (device, "fail_over_mac", s_bond, NM_SETTING_BOND_OPTION_FAIL_OVER_MAC);
+	set_simple_option (device, "use_carrier", s_bond, NM_SETTING_BOND_OPTION_USE_CARRIER);
+	set_simple_option (device, "ad_select", s_bond, NM_SETTING_BOND_OPTION_AD_SELECT);
+	set_simple_option (device, "xmit_hash_policy", s_bond, NM_SETTING_BOND_OPTION_XMIT_HASH_POLICY);
+	set_simple_option (device, "resend_igmp", s_bond, NM_SETTING_BOND_OPTION_RESEND_IGMP);
+
+	return NM_ACT_STAGE_RETURN_SUCCESS;
+}
+
+
+static NMActStageReturn
+act_stage1_prepare (NMDevice *dev, NMDeviceStateReason *reason)
+{
+	NMActStageReturn ret = NM_ACT_STAGE_RETURN_SUCCESS;
+	gboolean no_firmware = FALSE;
+
+	g_return_val_if_fail (reason != NULL, NM_ACT_STAGE_RETURN_FAILURE);
+
+	ret = NM_DEVICE_CLASS (nm_device_bond_parent_class)->act_stage1_prepare (dev, reason);
+	if (ret != NM_ACT_STAGE_RETURN_SUCCESS)
+		return ret;
+
+	/* Interface must be down to set bond options */
+	nm_device_take_down (dev, TRUE);
+	ret = apply_bonding_config (dev);
+	nm_device_bring_up (dev, TRUE, &no_firmware);
+
+	return ret;
+}
+
+static gboolean
+enslave_slave (NMDevice *device,
+               NMDevice *slave,
+               NMConnection *connection,
+               gboolean configure)
+{
+	gboolean success = TRUE, no_firmware = FALSE;
+	const char *iface = nm_device_get_ip_iface (device);
+	const char *slave_iface = nm_device_get_ip_iface (slave);
+
+	nm_device_master_check_slave_physical_port (device, slave, LOGD_BOND);
+
+	if (configure) {
+		nm_device_take_down (slave, TRUE);
+		success = nm_platform_link_enslave (nm_device_get_ip_ifindex (device),
+		                                    nm_device_get_ip_ifindex (slave));
+		nm_device_bring_up (slave, TRUE, &no_firmware);
+
+		if (!success)
+			return FALSE;
+
+		nm_log_info (LOGD_BOND, "(%s): enslaved bond slave %s", iface, slave_iface);
+	} else
+		nm_log_info (LOGD_BOND, "(%s): bond slave %s was enslaved", iface, slave_iface);
+
+	g_object_notify (G_OBJECT (device), NM_DEVICE_BOND_SLAVES);
+	return TRUE;
+}
+
+static gboolean
+release_slave (NMDevice *device,
+               NMDevice *slave,
+               gboolean configure)
+{
+	gboolean success = TRUE, no_firmware = FALSE;
+
+	if (configure) {
+		success = nm_platform_link_release (nm_device_get_ip_ifindex (device),
+		                                    nm_device_get_ip_ifindex (slave));
+
+		if (success) {
+			nm_log_info (LOGD_BOND, "(%s): released bond slave %s",
+			             nm_device_get_ip_iface (device),
+			             nm_device_get_ip_iface (slave));
+		} else {
+			nm_log_warn (LOGD_BOND, "(%s): failed to release bond slave %s",
+			             nm_device_get_ip_iface (device),
+			             nm_device_get_ip_iface (slave));
+		}
+	} else {
+		nm_log_info (LOGD_BOND, "(%s): bond slave %s was released",
+		             nm_device_get_ip_iface (device),
+		             nm_device_get_ip_iface (slave));
+	}
+
+	if (success)
+		g_object_notify (G_OBJECT (device), NM_DEVICE_BOND_SLAVES);
+
+	if (configure) {
+		/* Kernel bonding code "closes" the slave when releasing it, (which clears
+		 * IFF_UP), so we must bring it back up here to ensure carrier changes and
+		 * other state is noticed by the now-released slave.
+		 */
+		if (!nm_device_bring_up (slave, TRUE, &no_firmware)) {
+			nm_log_warn (LOGD_BOND, "(%s): released bond slave could not be brought up.",
+			             nm_device_get_iface (slave));
+		}
+	}
+
+	return success;
+}
+
+/******************************************************************/
+
+NMDevice *
+nm_device_bond_new (NMPlatformLink *platform_device)
+{
+	g_return_val_if_fail (platform_device != NULL, NULL);
+
+	return (NMDevice *) g_object_new (NM_TYPE_DEVICE_BOND,
+	                                  NM_DEVICE_PLATFORM_DEVICE, platform_device,
+	                                  NM_DEVICE_DRIVER, "bonding",
+	                                  NM_DEVICE_TYPE_DESC, "Bond",
+	                                  NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_BOND,
+	                                  NM_DEVICE_IS_MASTER, TRUE,
+	                                  NULL);
+}
+
+NMDevice *
+nm_device_bond_new_for_connection (NMConnection *connection)
+{
+	const char *iface;
+
+	g_return_val_if_fail (connection != NULL, NULL);
+
+	iface = nm_connection_get_virtual_iface_name (connection);
+	g_return_val_if_fail (iface != NULL, NULL);
+
+	if (   !nm_platform_bond_add (iface)
+	    && nm_platform_get_error () != NM_PLATFORM_ERROR_EXISTS) {
+		nm_log_warn (LOGD_DEVICE | LOGD_BOND, "(%s): failed to create bonding master interface for '%s': %s",
+		             iface, nm_connection_get_id (connection),
+		             nm_platform_get_error_msg ());
+		return NULL;
+	}
+
+	return (NMDevice *) g_object_new (NM_TYPE_DEVICE_BOND,
+	                                  NM_DEVICE_IFACE, iface,
+	                                  NM_DEVICE_DRIVER, "bonding",
+	                                  NM_DEVICE_TYPE_DESC, "Bond",
+	                                  NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_BOND,
+	                                  NM_DEVICE_IS_MASTER, TRUE,
+	                                  NULL);
+}
+
+static void
+constructed (GObject *object)
+{
+	G_OBJECT_CLASS (nm_device_bond_parent_class)->constructed (object);
+
+	nm_log_dbg (LOGD_HW | LOGD_BOND, "(%s): kernel ifindex %d",
+	            nm_device_get_iface (NM_DEVICE (object)),
+	            nm_device_get_ifindex (NM_DEVICE (object)));
+}
+
+static void
+nm_device_bond_init (NMDeviceBond * self)
+{
+}
+
+static void
+get_property (GObject *object, guint prop_id,
+              GValue *value, GParamSpec *pspec)
+{
+	GPtrArray *slaves;
+	GSList *list, *iter;
+
+	switch (prop_id) {
+		break;
+	case PROP_SLAVES:
+		slaves = g_ptr_array_new ();
+		list = nm_device_master_get_slaves (NM_DEVICE (object));
+		for (iter = list; iter; iter = iter->next)
+			g_ptr_array_add (slaves, g_strdup (nm_device_get_path (NM_DEVICE (iter->data))));
+		g_slist_free (list);
+		g_value_take_boxed (value, slaves);
+		break;
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+}
+
+static void
+set_property (GObject *object, guint prop_id,
+			  const GValue *value, GParamSpec *pspec)
+{
+	switch (prop_id) {
+	default:
+		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+		break;
+	}
+}
+
+static void
+nm_device_bond_class_init (NMDeviceBondClass *klass)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (klass);
+	NMDeviceClass *parent_class = NM_DEVICE_CLASS (klass);
+
+	g_type_class_add_private (object_class, sizeof (NMDeviceBondPrivate));
+
+	parent_class->connection_type = NM_SETTING_BOND_SETTING_NAME;
+
+	/* virtual methods */
+	object_class->constructed = constructed;
+	object_class->get_property = get_property;
+	object_class->set_property = set_property;
+
+	parent_class->get_generic_capabilities = get_generic_capabilities;
+	parent_class->is_available = is_available;
+	parent_class->check_connection_compatible = check_connection_compatible;
+	parent_class->check_connection_available = check_connection_available;
+	parent_class->complete_connection = complete_connection;
+
+	parent_class->update_connection = update_connection;
+
+	parent_class->act_stage1_prepare = act_stage1_prepare;
+	parent_class->enslave_slave = enslave_slave;
+	parent_class->release_slave = release_slave;
+
+	/* properties */
+	g_object_class_install_property
+		(object_class, PROP_SLAVES,
+		 g_param_spec_boxed (NM_DEVICE_BOND_SLAVES,
+		                     "Slaves",
+		                     "Slaves",
+		                     DBUS_TYPE_G_ARRAY_OF_OBJECT_PATH,
+		                     G_PARAM_READABLE));
+
+	nm_dbus_manager_register_exported_type (nm_dbus_manager_get (),
+	                                        G_TYPE_FROM_CLASS (klass),
+	                                        &dbus_glib_nm_device_bond_object_info);
+
+	dbus_g_error_domain_register (NM_BOND_ERROR, NULL, NM_TYPE_BOND_ERROR);
+}