/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2017 Red Hat, Inc.
*/
#include "src/core/nm-default-daemon.h"
#include "nm-manager.h"
#include "nm-ovsdb.h"
#include "nm-device-ovs-interface.h"
#include "nm-device-ovs-port.h"
#include "nm-device-ovs-bridge.h"
#include "libnm-platform/nm-platform.h"
#include "libnm-core-intern/nm-core-internal.h"
#include "settings/nm-settings.h"
#include "devices/nm-device-factory.h"
#include "devices/nm-device-private.h"
/*****************************************************************************/
typedef struct {
NMDeviceFactory parent;
} NMOvsFactory;
typedef struct {
NMDeviceFactoryClass parent;
} NMOvsFactoryClass;
#define NM_TYPE_OVS_FACTORY (nm_ovs_factory_get_type())
#define NM_OVS_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_OVS_FACTORY, NMOvsFactory))
#define NM_OVS_FACTORY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_OVS_FACTORY, NMOvsFactoryClass))
#define NM_IS_OVS_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_OVS_FACTORY))
#define NM_IS_OVS_FACTORY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_OVS_FACTORY))
#define NM_OVS_FACTORY_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_OVS_FACTORY, NMOvsFactoryClass))
static GType nm_ovs_factory_get_type(void);
G_DEFINE_TYPE(NMOvsFactory, nm_ovs_factory, NM_TYPE_DEVICE_FACTORY)
/*****************************************************************************/
#define _NMLOG_DOMAIN LOGD_DEVICE
#define _NMLOG(level, ifname, con_uuid, ...) \
G_STMT_START \
{ \
nm_log((level), \
_NMLOG_DOMAIN, \
(ifname), \
(con_uuid), \
"ovs: " _NM_UTILS_MACRO_FIRST(__VA_ARGS__) _NM_UTILS_MACRO_REST(__VA_ARGS__)); \
} \
G_STMT_END
/*****************************************************************************/
NM_DEVICE_FACTORY_DECLARE_TYPES(
NM_DEVICE_FACTORY_DECLARE_LINK_TYPES(NM_LINK_TYPE_OPENVSWITCH)
NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES(NM_SETTING_OVS_BRIDGE_SETTING_NAME,
NM_SETTING_OVS_INTERFACE_SETTING_NAME,
NM_SETTING_OVS_PORT_SETTING_NAME))
G_MODULE_EXPORT NMDeviceFactory *
nm_device_factory_create(GError **error)
{
nm_manager_set_capability(NM_MANAGER_GET, NM_CAPABILITY_OVS);
return g_object_new(NM_TYPE_OVS_FACTORY, NULL);
}
static NMDevice *
new_device_from_type(const char *name, NMDeviceType device_type)
{
GType type;
const char *type_desc;
NMLinkType link_type = NM_LINK_TYPE_NONE;
if (nm_manager_get_device(NM_MANAGER_GET, name, device_type))
return NULL;
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE) {
type = NM_TYPE_DEVICE_OVS_INTERFACE;
type_desc = "Open vSwitch Interface";
link_type = NM_LINK_TYPE_OPENVSWITCH;
} else if (device_type == NM_DEVICE_TYPE_OVS_PORT) {
type = NM_TYPE_DEVICE_OVS_PORT;
type_desc = "Open vSwitch Port";
} else if (device_type == NM_DEVICE_TYPE_OVS_BRIDGE) {
type = NM_TYPE_DEVICE_OVS_BRIDGE;
type_desc = "Open vSwitch Bridge";
} else {
return NULL;
}
return g_object_new(type,
NM_DEVICE_IFACE,
name,
NM_DEVICE_DRIVER,
"openvswitch",
NM_DEVICE_DEVICE_TYPE,
device_type,
NM_DEVICE_TYPE_DESC,
type_desc,
NM_DEVICE_LINK_TYPE,
link_type,
NULL);
}
static void
ovsdb_device_added(NMOvsdb * ovsdb,
const char * name,
guint device_type_i,
const char * subtype,
NMDeviceFactory *self)
{
const NMDeviceType device_type = device_type_i;
NMDevice * device;
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE
&& !NM_IN_STRSET(subtype, "internal", "patch")) {
/* system interfaces refer to kernel devices and
* don't need to be created by this factory. Ignore
* anything that is not an internal or patch
* interface. */
return;
}
device = new_device_from_type(name, device_type);
if (!device)
return;
g_signal_emit_by_name(self, NM_DEVICE_FACTORY_DEVICE_ADDED, device);
g_object_unref(device);
}
static void
ovsdb_device_removed(NMOvsdb * ovsdb,
const char * name,
guint device_type_i,
const char * subtype,
NMDeviceFactory *self)
{
const NMDeviceType device_type = device_type_i;
NMDevice * device = NULL;
NMDeviceState device_state;
gboolean is_system_interface = FALSE;
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE
&& !NM_IN_STRSET(subtype, "internal", "patch", "system"))
return;
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE && nm_streq0(subtype, "system")) {
NMDevice * d;
const CList * list;
NMSettingOvsInterface *s_ovs_int;
/* The device associated to an OVS system interface can be of
* any kind. Find an interface with the same name and which has
* the OVS-interface setting. */
is_system_interface = TRUE;
nm_manager_for_each_device (NM_MANAGER_GET, d, list) {
if (!nm_streq0(nm_device_get_iface(d), name))
continue;
s_ovs_int = nm_device_get_applied_setting(d, NM_TYPE_SETTING_OVS_INTERFACE);
if (!s_ovs_int)
continue;
if (!nm_streq0(nm_setting_ovs_interface_get_interface_type(s_ovs_int), "system"))
continue;
/* Failing the system interface device is almost always the right
* thing to do when the ovsdb entry is removed. However, to avoid
* that a late device-removed signal tears down a different,
* newly-activated connection, let's also check that we have a master.
* Or in alternative, that the device is assumed/external: in such
* case it's always fine to fail the device.
*/
if (!nm_device_get_master(d) && !nm_device_sys_iface_state_is_external_or_assume(d))
continue;
device = d;
}
} else {
device = nm_manager_get_device(NM_MANAGER_GET, name, device_type);
}
if (!device)
return;
device_state = nm_device_get_state(device);
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE && nm_device_get_act_request(device)
&& device_state < NM_DEVICE_STATE_DEACTIVATING) {
nm_device_state_changed(device,
NM_DEVICE_STATE_DEACTIVATING,
NM_DEVICE_STATE_REASON_REMOVED);
return;
}
/* OVS system interfaces still exist even without the ovsdb entry */
if (!is_system_interface && device_state == NM_DEVICE_STATE_UNMANAGED) {
nm_device_unrealize(device, TRUE, NULL);
}
}
static void
ovsdb_interface_failed(NMOvsdb * ovsdb,
const char * name,
const char * connection_uuid,
const char * error,
NMDeviceFactory *self)
{
NMDevice * device = NULL;
NMSettingsConnection * connection = NULL;
NMConnection * c;
const char * type;
NMSettingOvsInterface *s_ovs_int;
gboolean is_patch = FALSE;
gboolean ignore;
device = nm_manager_get_device(NM_MANAGER_GET, name, NM_DEVICE_TYPE_OVS_INTERFACE);
if (device && connection_uuid) {
connection =
nm_settings_get_connection_by_uuid(nm_device_get_settings(device), connection_uuid);
}
/* The patch interface which gets created first is expected to
* fail because the second patch doesn't exist yet. Ignore all
* failures of patch interfaces. */
if (connection && (c = nm_settings_connection_get_connection(connection))
&& (type = nm_connection_get_connection_type(c))
&& nm_streq0(type, NM_SETTING_OVS_INTERFACE_SETTING_NAME)
&& (s_ovs_int = nm_connection_get_setting_ovs_interface(c))
&& nm_streq0(nm_setting_ovs_interface_get_interface_type(s_ovs_int), "patch"))
is_patch = TRUE;
ignore = !device || is_patch;
_NMLOG(ignore ? LOGL_DEBUG : LOGL_INFO,
name,
connection_uuid,
"ovs interface \"%s\" (%s) failed%s: %s",
name,
connection_uuid,
ignore ? " (ignored)" : "",
error);
if (ignore)
return;
if (connection) {
nm_settings_connection_autoconnect_blocked_reason_set(
connection,
NM_SETTINGS_AUTO_CONNECT_BLOCKED_REASON_FAILED,
TRUE);
}
nm_device_state_changed(device, NM_DEVICE_STATE_FAILED, NM_DEVICE_STATE_REASON_OVSDB_FAILED);
}
static void
start(NMDeviceFactory *self)
{
NMOvsdb *ovsdb;
ovsdb = nm_ovsdb_get();
g_signal_connect_object(ovsdb,
NM_OVSDB_DEVICE_ADDED,
G_CALLBACK(ovsdb_device_added),
self,
(GConnectFlags) 0);
g_signal_connect_object(ovsdb,
NM_OVSDB_DEVICE_REMOVED,
G_CALLBACK(ovsdb_device_removed),
self,
(GConnectFlags) 0);
g_signal_connect_object(ovsdb,
NM_OVSDB_INTERFACE_FAILED,
G_CALLBACK(ovsdb_interface_failed),
self,
(GConnectFlags) 0);
}
static NMDevice *
create_device(NMDeviceFactory * self,
const char * iface,
const NMPlatformLink *plink,
NMConnection * connection,
gboolean * out_ignore)
{
NMDeviceType device_type = NM_DEVICE_TYPE_UNKNOWN;
const char * connection_type = NULL;
if (g_strcmp0(iface, "ovs-system") == 0) {
*out_ignore = TRUE;
return NULL;
}
if (connection)
connection_type = nm_connection_get_connection_type(connection);
if (plink)
device_type = NM_DEVICE_TYPE_OVS_INTERFACE;
else if (g_strcmp0(connection_type, NM_SETTING_OVS_INTERFACE_SETTING_NAME) == 0)
device_type = NM_DEVICE_TYPE_OVS_INTERFACE;
else if (g_strcmp0(connection_type, NM_SETTING_OVS_PORT_SETTING_NAME) == 0)
device_type = NM_DEVICE_TYPE_OVS_PORT;
else if (g_strcmp0(connection_type, NM_SETTING_OVS_BRIDGE_SETTING_NAME) == 0)
device_type = NM_DEVICE_TYPE_OVS_BRIDGE;
return new_device_from_type(iface, device_type);
}
static void
nm_ovs_factory_init(NMOvsFactory *self)
{}
static void
nm_ovs_factory_class_init(NMOvsFactoryClass *klass)
{
NMDeviceFactoryClass *factory_class = NM_DEVICE_FACTORY_CLASS(klass);
factory_class->get_supported_types = get_supported_types;
factory_class->start = start;
factory_class->create_device = create_device;
}