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NMDevice

NMDevice

Synopsis

enum                NMDeviceError;
#define             NM_DEVICE_ERROR
GQuark              nm_device_error_quark               (void);
#define             NM_DEVICE_DEVICE_TYPE
#define             NM_DEVICE_UDI
#define             NM_DEVICE_INTERFACE
#define             NM_DEVICE_IP_INTERFACE
#define             NM_DEVICE_DRIVER
#define             NM_DEVICE_DRIVER_VERSION
#define             NM_DEVICE_FIRMWARE_VERSION
#define             NM_DEVICE_CAPABILITIES
#define             NM_DEVICE_MANAGED
#define             NM_DEVICE_AUTOCONNECT
#define             NM_DEVICE_FIRMWARE_MISSING
#define             NM_DEVICE_IP4_CONFIG
#define             NM_DEVICE_DHCP4_CONFIG
#define             NM_DEVICE_IP6_CONFIG
#define             NM_DEVICE_DHCP6_CONFIG
#define             NM_DEVICE_STATE
#define             NM_DEVICE_STATE_REASON
#define             NM_DEVICE_ACTIVE_CONNECTION
#define             NM_DEVICE_AVAILABLE_CONNECTIONS
#define             NM_DEVICE_VENDOR
#define             NM_DEVICE_PRODUCT
#define             NM_DEVICE_PHYSICAL_PORT_ID
#define             NM_DEVICE_MTU
                    NMDevice;
                    NMDeviceClass;
GObject *           nm_device_new                       (DBusGConnection *connection,
                                                         const char *path);
const char *        nm_device_get_iface                 (NMDevice *device);
const char *        nm_device_get_ip_iface              (NMDevice *device);
NMDeviceType        nm_device_get_device_type           (NMDevice *device);
const char *        nm_device_get_udi                   (NMDevice *device);
const char *        nm_device_get_driver                (NMDevice *device);
const char *        nm_device_get_driver_version        (NMDevice *device);
const char *        nm_device_get_firmware_version      (NMDevice *device);
const char *        nm_device_get_type_description      (NMDevice *device);
const char *        nm_device_get_hw_address            (NMDevice *device);
NMDeviceCapabilities nm_device_get_capabilities         (NMDevice *device);
gboolean            nm_device_get_managed               (NMDevice *device);
gboolean            nm_device_get_autoconnect           (NMDevice *device);
void                nm_device_set_autoconnect           (NMDevice *device,
                                                         gboolean autoconnect);
gboolean            nm_device_get_firmware_missing      (NMDevice *device);
NMIP4Config *       nm_device_get_ip4_config            (NMDevice *device);
NMDHCP4Config *     nm_device_get_dhcp4_config          (NMDevice *device);
NMIP6Config *       nm_device_get_ip6_config            (NMDevice *device);
NMDHCP6Config *     nm_device_get_dhcp6_config          (NMDevice *device);
NMDeviceState       nm_device_get_state                 (NMDevice *device);
NMDeviceState       nm_device_get_state_reason          (NMDevice *device,
                                                         NMDeviceStateReason *reason);
NMActiveConnection * nm_device_get_active_connection    (NMDevice *device);
const GPtrArray *   nm_device_get_available_connections (NMDevice *device);
const char *        nm_device_get_physical_port_id      (NMDevice *device);
guint32             nm_device_get_mtu                   (NMDevice *device);
const char *        nm_device_get_product               (NMDevice *device);
const char *        nm_device_get_vendor                (NMDevice *device);
const char *        nm_device_get_description           (NMDevice *device);
char **             nm_device_disambiguate_names        (NMDevice **devices,
                                                         int num_devices);
void                (*NMDeviceDeactivateFn)             (NMDevice *device,
                                                         GError *error,
                                                         gpointer user_data);
void                nm_device_disconnect                (NMDevice *device,
                                                         NMDeviceDeactivateFn callback,
                                                         gpointer user_data);
GSList *            nm_device_filter_connections        (NMDevice *device,
                                                         const GSList *connections);
gboolean            nm_device_connection_valid          (NMDevice *device,
                                                         NMConnection *connection);
gboolean            nm_device_connection_compatible     (NMDevice *device,
                                                         NMConnection *connection,
                                                         GError **error);
GType               nm_device_get_setting_type          (NMDevice *device);

Object Hierarchy

  GObject
   +----NMObject
         +----NMDevice
               +----NMDeviceEthernet
               +----NMDeviceWifi
               +----NMDeviceModem
               +----NMDeviceBt
               +----NMDeviceWimax
               +----NMDeviceOlpcMesh
               +----NMDeviceAdsl
               +----NMDeviceInfiniband
               +----NMDeviceBond
               +----NMDeviceBridge
               +----NMDeviceTeam
               +----NMDeviceGeneric
               +----NMDeviceVlan

Implemented Interfaces

NMDevice implements GInitable and GAsyncInitable.

Properties

  "active-connection"        NMActiveConnection*   : Read
  "autoconnect"              gboolean              : Read / Write
  "available-connections"    NMObjectArray*        : Read
  "capabilities"             guint                 : Read
  "device-type"              guint                 : Read
  "dhcp4-config"             NMDHCP4Config*        : Read
  "dhcp6-config"             NMDHCP6Config*        : Read
  "driver"                   gchar*                : Read
  "driver-version"           gchar*                : Read
  "firmware-missing"         gboolean              : Read
  "firmware-version"         gchar*                : Read
  "interface"                gchar*                : Read
  "ip-interface"             gchar*                : Read
  "ip4-config"               NMIP4Config*          : Read
  "ip6-config"               NMIP6Config*          : Read
  "managed"                  gboolean              : Read
  "mtu"                      guint                 : Read
  "physical-port-id"         gchar*                : Read
  "product"                  gchar*                : Read
  "state"                    guint                 : Read
  "state-reason"             GValueArray_guint+guint_*  : Read
  "udi"                      gchar*                : Read
  "vendor"                   gchar*                : Read

Signals

  "state-changed"                                  : Run First

Description

Details

enum NMDeviceError

typedef enum {
	NM_DEVICE_ERROR_UNKNOWN = 0,        /*< nick=UnknownError >*/
	NM_DEVICE_ERROR_INTERFACE_MISMATCH, /*< nick=InterfaceMismatch >*/
} NMDeviceError;

NM_DEVICE_ERROR_UNKNOWN

 unknown or unclassified error

NM_DEVICE_ERROR_INTERFACE_MISMATCH

 the interface names of the connection and the device mismatched

NM_DEVICE_ERROR

#define NM_DEVICE_ERROR nm_device_error_quark ()

nm_device_error_quark ()

GQuark              nm_device_error_quark               (void);

Registers an error quark for NMDevice if necessary.

Returns :

 the error quark used for NMDevice errors.

Since 0.9.10

NM_DEVICE_DEVICE_TYPE

#define NM_DEVICE_DEVICE_TYPE "device-type"

NM_DEVICE_UDI

#define NM_DEVICE_UDI "udi"

NM_DEVICE_INTERFACE

#define NM_DEVICE_INTERFACE "interface"

NM_DEVICE_IP_INTERFACE

#define NM_DEVICE_IP_INTERFACE "ip-interface"

NM_DEVICE_DRIVER

#define NM_DEVICE_DRIVER "driver"

NM_DEVICE_DRIVER_VERSION

#define NM_DEVICE_DRIVER_VERSION "driver-version"

NM_DEVICE_FIRMWARE_VERSION

#define NM_DEVICE_FIRMWARE_VERSION "firmware-version"

NM_DEVICE_CAPABILITIES

#define NM_DEVICE_CAPABILITIES "capabilities"

NM_DEVICE_MANAGED

#define NM_DEVICE_MANAGED "managed"

NM_DEVICE_AUTOCONNECT

#define NM_DEVICE_AUTOCONNECT "autoconnect"

NM_DEVICE_FIRMWARE_MISSING

#define NM_DEVICE_FIRMWARE_MISSING "firmware-missing"

NM_DEVICE_IP4_CONFIG

#define NM_DEVICE_IP4_CONFIG "ip4-config"

NM_DEVICE_DHCP4_CONFIG

#define NM_DEVICE_DHCP4_CONFIG "dhcp4-config"

NM_DEVICE_IP6_CONFIG

#define NM_DEVICE_IP6_CONFIG "ip6-config"

NM_DEVICE_DHCP6_CONFIG

#define NM_DEVICE_DHCP6_CONFIG "dhcp6-config"

NM_DEVICE_STATE

#define NM_DEVICE_STATE "state"

NM_DEVICE_STATE_REASON

#define NM_DEVICE_STATE_REASON "state-reason"

NM_DEVICE_ACTIVE_CONNECTION

#define NM_DEVICE_ACTIVE_CONNECTION "active-connection"

NM_DEVICE_AVAILABLE_CONNECTIONS

#define NM_DEVICE_AVAILABLE_CONNECTIONS "available-connections"

NM_DEVICE_VENDOR

#define NM_DEVICE_VENDOR "vendor"

NM_DEVICE_PRODUCT

#define NM_DEVICE_PRODUCT "product"

NM_DEVICE_PHYSICAL_PORT_ID

#define NM_DEVICE_PHYSICAL_PORT_ID "physical-port-id"

NM_DEVICE_MTU

#define NM_DEVICE_MTU "mtu"

NMDevice

typedef struct _NMDevice NMDevice;

NMDeviceClass

typedef struct {
	NMObjectClass parent;

	/* Signals */
	void (*state_changed) (NMDevice *device,
	                       NMDeviceState new_state,
	                       NMDeviceState old_state,
	                       NMDeviceStateReason reason);

	gboolean (*connection_compatible) (NMDevice *device,
	                                   NMConnection *connection,
	                                   GError **error);

	const char * (*get_type_description) (NMDevice *device);
	const char * (*get_hw_address) (NMDevice *device);

	GType (*get_setting_type) (NMDevice *device);

	/* Padding for future expansion */
	void (*_reserved1) (void);
	void (*_reserved2) (void);
	void (*_reserved3) (void);
} NMDeviceClass;

nm_device_new ()

GObject *           nm_device_new                       (DBusGConnection *connection,
                                                         const char *path);

Creates a new NMDevice.

connection :

 the DBusGConnection

path :

 the DBus object path of the device

Returns :

 a new device. [transfer full]

nm_device_get_iface ()

const char *        nm_device_get_iface                 (NMDevice *device);

Gets the interface name of the NMDevice.

device :

 a NMDevice

Returns :

 the interface of the device. This is the internal string used by the device, and must not be modified.

nm_device_get_ip_iface ()

const char *        nm_device_get_ip_iface              (NMDevice *device);

Gets the IP interface name of the NMDevice over which IP traffic flows when the device is in the ACTIVATED state.

device :

 a NMDevice

Returns :

 the IP traffic interface of the device. This is the internal string used by the device, and must not be modified.

nm_device_get_device_type ()

NMDeviceType        nm_device_get_device_type           (NMDevice *device);

Returns the numeric type of the NMDevice, ie Ethernet, Wi-Fi, etc.

device :

 a NMDevice

Returns :

 the device type

nm_device_get_udi ()

const char *        nm_device_get_udi                   (NMDevice *device);

Gets the Unique Device Identifier of the NMDevice.

device :

 a NMDevice

Returns :

 the Unique Device Identifier of the device. This identifier may be used to gather more information about the device from various operating system services like udev or sysfs.

nm_device_get_driver ()

const char *        nm_device_get_driver                (NMDevice *device);

Gets the driver of the NMDevice.

device :

 a NMDevice

Returns :

 the driver of the device. This is the internal string used by the device, and must not be modified.

nm_device_get_driver_version ()

const char *        nm_device_get_driver_version        (NMDevice *device);

Gets the driver version of the NMDevice.

device :

 a NMDevice

Returns :

 the version of the device driver. This is the internal string used by the device, and must not be modified.

nm_device_get_firmware_version ()

const char *        nm_device_get_firmware_version      (NMDevice *device);

Gets the firmware version of the NMDevice.

device :

 a NMDevice

Returns :

 the firmware version of the device. This is the internal string used by the device, and must not be modified.

nm_device_get_type_description ()

const char *        nm_device_get_type_description      (NMDevice *device);

Gets a (non-localized) description of the type of device that device is.

device :

 a NMDevice

Returns :

 the type description of the device. This is the internal string used by the device, and must not be modified.

Since 0.9.10

nm_device_get_hw_address ()

const char *        nm_device_get_hw_address            (NMDevice *device);

Gets the current a hardware address (MAC) for the device.

device :

 a NMDevice

Returns :

 the current MAC of the device, or NULL. This is the internal string used by the device, and must not be modified.

Since 0.9.10

nm_device_get_capabilities ()

NMDeviceCapabilities nm_device_get_capabilities         (NMDevice *device);

Gets the device' capabilities.

device :

 a NMDevice

Returns :

 the capabilities

nm_device_get_managed ()

gboolean            nm_device_get_managed               (NMDevice *device);

Whether the NMDevice is managed by NetworkManager.

device :

 a NMDevice

Returns :

 TRUE if the device is managed by NetworkManager

nm_device_get_autoconnect ()

gboolean            nm_device_get_autoconnect           (NMDevice *device);

Whether the NMDevice can be autoconnected.

device :

 a NMDevice

Returns :

 TRUE if the device is allowed to be autoconnected

nm_device_set_autoconnect ()

void                nm_device_set_autoconnect           (NMDevice *device,
                                                         gboolean autoconnect);

Enables or disables automatic activation of the NMDevice.

device :

 a NMDevice

autoconnect :

 TRUE to enable autoconnecting

nm_device_get_firmware_missing ()

gboolean            nm_device_get_firmware_missing      (NMDevice *device);

Indicates that firmware required for the device's operation is likely to be missing.

device :

 a NMDevice

Returns :

 TRUE if firmware required for the device's operation is likely to be missing.

nm_device_get_ip4_config ()

NMIP4Config *       nm_device_get_ip4_config            (NMDevice *device);

Gets the current NMIP4Config associated with the NMDevice.

Note that as of NetworkManager 0.9.10, you can alternatively use nm_active_connection_get_ip4_config(), which also works with VPN connections.

device :

 a NMDevice

Returns :

 the NMIP4Config or NULL if the device is not activated. [transfer none]

nm_device_get_dhcp4_config ()

NMDHCP4Config *     nm_device_get_dhcp4_config          (NMDevice *device);

Gets the current NMDHCP4Config associated with the NMDevice.

Note that as of NetworkManager 0.9.10, you can alternatively use nm_active_connection_get_dhcp4_config(), which also works with VPN connections.

device :

 a NMDevice

Returns :

 the NMDHCP4Config or NULL if the device is not activated or not using DHCP. [transfer none]

nm_device_get_ip6_config ()

NMIP6Config *       nm_device_get_ip6_config            (NMDevice *device);

Gets the current NMIP6Config associated with the NMDevice.

Note that as of NetworkManager 0.9.10, you can alternatively use nm_active_connection_get_ip6_config(), which also works with VPN connections.

device :

 a NMDevice

Returns :

 the NMIP6Config or NULL if the device is not activated. [transfer none]

nm_device_get_dhcp6_config ()

NMDHCP6Config *     nm_device_get_dhcp6_config          (NMDevice *device);

Gets the current NMDHCP6Config associated with the NMDevice.

Note that as of NetworkManager 0.9.10, you can alternatively use nm_active_connection_get_dhcp6_config(), which also works with VPN connections.

device :

 a NMDevice

Returns :

 the NMDHCP6Config or NULL if the device is not activated or not using DHCP. [transfer none]

nm_device_get_state ()

NMDeviceState       nm_device_get_state                 (NMDevice *device);

Gets the current NMDevice state.

device :

 a NMDevice

Returns :

 the current device state

nm_device_get_state_reason ()

NMDeviceState       nm_device_get_state_reason          (NMDevice *device,
                                                         NMDeviceStateReason *reason);

Gets the current NMDevice state (return value) and the reason for entering the state (reason argument).

device :

 a NMDevice

reason :

 location to store reason (NMDeviceStateReason), or NULL. [out][allow-none]

Returns :

 the current device state

nm_device_get_active_connection ()

NMActiveConnection * nm_device_get_active_connection    (NMDevice *device);

Gets the NMActiveConnection object which owns this device during activation.

device :

 a NMDevice

Returns :

 the NMActiveConnection or NULL if the device is not part of an active connection. [transfer none]

nm_device_get_available_connections ()

const GPtrArray *   nm_device_get_available_connections (NMDevice *device);

Gets the NMRemoteConnections currently known to the daemon that could be activated on device.

device :

 a NMDevice

Returns :

 the GPtrArray containing NMRemoteConnections. This is the internal copy used by the connection, and must not be modified. [element-type NMClient.RemoteConnection]

Since 0.9.8

nm_device_get_physical_port_id ()

const char *        nm_device_get_physical_port_id      (NMDevice *device);

Gets the physical port ID of the NMDevice. If non-NULL, this is an opaque string that can be used to recognize when seemingly-unrelated NMDevices are actually just different virtual ports on a single physical port. (Eg, NPAR / SR-IOV.)

device :

 a NMDevice

Returns :

 the physical port ID of the device, or NULL if the port ID is unknown. This is the internal string used by the device and must not be modified.

Since 0.9.10

nm_device_get_mtu ()

guint32             nm_device_get_mtu                   (NMDevice *device);

Gets the MTU of the NMDevice.

device :

 a NMDevice

Returns :

 the MTU of the device.

Since 0.9.10

nm_device_get_product ()

const char *        nm_device_get_product               (NMDevice *device);

Gets the product string of the NMDevice.

device :

 a NMDevice

Returns :

 the product name of the device. This is the internal string used by the device, and must not be modified.

nm_device_get_vendor ()

const char *        nm_device_get_vendor                (NMDevice *device);

Gets the vendor string of the NMDevice.

device :

 a NMDevice

Returns :

 the vendor name of the device. This is the internal string used by the device, and must not be modified.

nm_device_get_description ()

const char *        nm_device_get_description           (NMDevice *device);

Gets a description of device, incorporating the results of nm_device_get_short_vendor() and nm_device_get_short_product().

device :

 an NMDevice

Returns :

 a description of device. If either the vendor or the product name is unknown, this returns the interface name.

Since 0.9.10

nm_device_disambiguate_names ()

char **             nm_device_disambiguate_names        (NMDevice **devices,
                                                         int num_devices);

Generates a list of short-ish unique presentation names for the devices in devices.

devices :

 an array of NMDevice. [array length=num_devices]

num_devices :

 length of devices

Returns :

 the device names. [transfer full][array zero-terminated=1]

Since 0.9.10

NMDeviceDeactivateFn ()

void                (*NMDeviceDeactivateFn)             (NMDevice *device,
                                                         GError *error,
                                                         gpointer user_data);

nm_device_disconnect ()

void                nm_device_disconnect                (NMDevice *device,
                                                         NMDeviceDeactivateFn callback,
                                                         gpointer user_data);

Disconnects the device if currently connected, and prevents the device from automatically connecting to networks until the next manual network connection request.

device :

 a NMDevice

callback :

 callback to be called when disconnect operation completes. [scope async][allow-none]

user_data :

 caller-specific data passed to callback. [closure]

nm_device_filter_connections ()

GSList *            nm_device_filter_connections        (NMDevice *device,
                                                         const GSList *connections);

Filters a given list of connections for a given NMDevice object and return connections which may be activated with the device. For example if device is a Wi-Fi device that supports only WEP encryption, the returned list will contain any Wi-Fi connections in connections that allow connection to unencrypted or WEP-enabled SSIDs. The returned list will not contain Ethernet, Bluetooth, Wi-Fi WPA connections, or any other connection that is incompatible with the device. To get the full list of connections see nm_remote_settings_list_connections().

device :

 an NMDevice to filter connections for

connections :

 a list of NMConnection objects to filter. [element-type NetworkManager.Connection]

Returns :

 a list of NMConnection objects that could be activated with the given device. The elements of the list are owned by their creator and should not be freed by the caller, but the returned list itself is owned by the caller and should be freed with g_slist_free() when it is no longer required. [transfer container][element-type NetworkManager.Connection]

nm_device_connection_valid ()

gboolean            nm_device_connection_valid          (NMDevice *device,
                                                         NMConnection *connection);

Validates a given connection for a given NMDevice object and returns whether the connection may be activated with the device. For example if device is a Wi-Fi device that supports only WEP encryption, the connection will only be valid if it is a Wi-Fi connection which describes a WEP or open network, and will not be valid if it describes a WPA network, or if it is an Ethernet, Bluetooth, WWAN, etc connection that is incompatible with the device.

device :

 an NMDevice to validate connection against

connection :

 an NMConnection to validate against device

Returns :

 TRUE if the connection may be activated with this device, FALSE if is incompatible with the device's capabilities and characteristics.

nm_device_connection_compatible ()

gboolean            nm_device_connection_compatible     (NMDevice *device,
                                                         NMConnection *connection,
                                                         GError **error);

Validates a given connection for a given NMDevice object and returns whether the connection may be activated with the device. For example if device is a Wi-Fi device that supports only WEP encryption, the connection will only be valid if it is a Wi-Fi connection which describes a WEP or open network, and will not be valid if it describes a WPA network, or if it is an Ethernet, Bluetooth, WWAN, etc connection that is incompatible with the device.

This function does the same as nm_device_connection_valid(), i.e. checking compatibility of the given device and connection. But, in addition, it sets GError when FALSE is returned.

device :

 an NMDevice to validate connection against

connection :

 an NMConnection to validate against device

error :

 return location for a GError, or NULL

Returns :

 TRUE if the connection may be activated with this device, FALSE if is incompatible with the device's capabilities and characteristics.

nm_device_get_setting_type ()

GType               nm_device_get_setting_type          (NMDevice *device);

Gets the (primary) NMSetting subtype associated with connections that can be used on device.

device :

 an NMDevice

Returns :

 device's associated NMSetting type

Since 0.9.10

Property Details

The "active-connection" property

  "active-connection"        NMActiveConnection*   : Read

The NMActiveConnection object that "owns" this device during activation.

The "autoconnect" property

  "autoconnect"              gboolean              : Read / Write

Whether the device can auto-activate a connection.

Default value: TRUE

The "available-connections" property

  "available-connections"    NMObjectArray*        : Read

The available connections (NMRemoteConnection) of the device

Since 0.9.8

The "capabilities" property

  "capabilities"             guint                 : Read

The capabilities of the device.

Default value: 0

The "device-type" property

  "device-type"              guint                 : Read

The numeric type of the device.

Default value: 0

The "dhcp4-config" property

  "dhcp4-config"             NMDHCP4Config*        : Read

The NMDHCP4Config of the device.

The "dhcp6-config" property

  "dhcp6-config"             NMDHCP6Config*        : Read

The NMDHCP6Config of the device.

The "driver" property

  "driver"                   gchar*                : Read

The driver of the device.

Default value: NULL

The "driver-version" property

  "driver-version"           gchar*                : Read

The version of the device driver.

Default value: NULL

The "firmware-missing" property

  "firmware-missing"         gboolean              : Read

When TRUE indicates the device is likely missing firmware required for its operation.

Default value: FALSE

The "firmware-version" property

  "firmware-version"         gchar*                : Read

The firmware version of the device.

Default value: NULL

The "interface" property

  "interface"                gchar*                : Read

The interface of the device.

Default value: NULL

The "ip-interface" property

  "ip-interface"             gchar*                : Read

The IP interface of the device which should be used for all IP-related operations like addressing and routing.

Default value: NULL

The "ip4-config" property

  "ip4-config"               NMIP4Config*          : Read

The NMIP4Config of the device.

The "ip6-config" property

  "ip6-config"               NMIP6Config*          : Read

The NMIP6Config of the device.

The "managed" property

  "managed"                  gboolean              : Read

Whether the device is managed by NetworkManager.

Default value: FALSE

The "mtu" property

  "mtu"                      guint                 : Read

The MTU of the device.

Default value: 1500

Since 0.9.10

The "physical-port-id" property

  "physical-port-id"         gchar*                : Read

The physical port ID of the device. (See nm_device_get_physical_port_id().)

Default value: NULL

Since 0.9.10

The "product" property

  "product"                  gchar*                : Read

The product string of the device.

Default value: NULL

The "state" property

  "state"                    guint                 : Read

The state of the device.

Default value: 0

The "state-reason" property

  "state-reason"             GValueArray_guint+guint_*  : Read

The state and reason of the device.

The "udi" property

  "udi"                      gchar*                : Read

An operating-system specific device hardware identifier; this is not unique to a specific hardware device across reboots or hotplugs. It is an opaque string which for some device types (Bluetooth, Modem) contains an identifier provided by the underlying hardware service daemon such as Bluez or ModemManager, and clients can use this property to request more information about the device from those services.

Default value: NULL

The "vendor" property

  "vendor"                   gchar*                : Read

The vendor string of the device.

Default value: NULL

Signal Details

The "state-changed" signal

void                user_function                      (NMDevice *device,
                                                        guint     new_state,
                                                        guint     old_state,
                                                        guint     reason,
                                                        gpointer  user_data)      : Run First

Notifies the state change of a NMDevice.

device :

 the device object that received the signal

new_state :

 the new state of the device

old_state :

 the previous state of the device

reason :

 the reason describing the state change

user_data :

 user data set when the signal handler was connected.
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