Files
NetworkManager/libnm/nm-device-modem.c
Thomas Haller 57aa5e2a9d libnm: hide GObject structs from public API and embed private data
These types are all subclasses of NMObject. These instances are commonly
created by NMClient itself. It makes no sense that a user would
instantiate the type. Much less does it make sense to subclass them.

Hide the object and class structures from public API.

This is an API and ABI break, but of something that is very likely
unused.

This is mainly done to embed the private structure in the object itself.
This has benefits for performance and debugability. But most
importantly, we can obtain a static offset where to access the private data.
That means, we can use the information to access the data pointer
generically, as we will need later.

This is not done for the internal types NMManager, NMRemoteSettings,
and NMDnsManager. These types will be dropped later.
2019-10-22 10:58:52 +02:00

359 lines
10 KiB
C

// SPDX-License-Identifier: LGPL-2.1+
/*
* Copyright (C) 2011 - 2012 Red Hat, Inc.
* Copyright (C) 2008 Novell, Inc.
*/
#include "nm-default.h"
#include "nm-device-modem.h"
#include "nm-setting-connection.h"
#include "nm-setting-gsm.h"
#include "nm-setting-cdma.h"
#include "nm-object-private.h"
#include "nm-enum-types.h"
/*****************************************************************************/
NM_GOBJECT_PROPERTIES_DEFINE_BASE (
PROP_MODEM_CAPABILITIES,
PROP_CURRENT_CAPABILITIES,
PROP_DEVICE_ID,
PROP_OPERATOR_CODE,
PROP_APN,
);
typedef struct {
NMDeviceModemCapabilities caps;
NMDeviceModemCapabilities current_caps;
char *device_id;
char *operator_code;
char *apn;
} NMDeviceModemPrivate;
struct _NMDeviceModem {
NMDevice parent;
NMDeviceModemPrivate _priv;
};
struct _NMDeviceModemClass {
NMDeviceClass parent;
};
G_DEFINE_TYPE (NMDeviceModem, nm_device_modem, NM_TYPE_DEVICE)
#define NM_DEVICE_MODEM_GET_PRIVATE(self) _NM_GET_PRIVATE(self, NMDeviceModem, NM_IS_DEVICE_MODEM, NMObject, NMDevice)
/*****************************************************************************/
/**
* nm_device_modem_get_modem_capabilities:
* @self: a #NMDeviceModem
*
* Returns a bitfield of the generic access technology families the modem
* supports. Not all capabilities are available concurrently however; some
* may require a firmware reload or reinitialization.
*
* Returns: the generic access technology families the modem supports
**/
NMDeviceModemCapabilities
nm_device_modem_get_modem_capabilities (NMDeviceModem *self)
{
g_return_val_if_fail (NM_IS_DEVICE_MODEM (self), NM_DEVICE_MODEM_CAPABILITY_NONE);
return NM_DEVICE_MODEM_GET_PRIVATE (self)->caps;
}
/**
* nm_device_modem_get_current_capabilities:
* @self: a #NMDeviceModem
*
* Returns a bitfield of the generic access technology families the modem
* supports without a firmware reload or reinitialization. This value
* represents the network types the modem can immediately connect to.
*
* Returns: the generic access technology families the modem supports without
* a firmware reload or other reinitialization
**/
NMDeviceModemCapabilities
nm_device_modem_get_current_capabilities (NMDeviceModem *self)
{
g_return_val_if_fail (NM_IS_DEVICE_MODEM (self), NM_DEVICE_MODEM_CAPABILITY_NONE);
return NM_DEVICE_MODEM_GET_PRIVATE (self)->current_caps;
}
/**
* nm_device_modem_get_device_id:
* @self: a #NMDeviceModem
*
* An identifier used by the modem backend (ModemManager) that aims to
* uniquely identify the a device. Can be used to match a connection to a
* particular device.
*
* Returns: a device-id string
*
* Since: 1.20
**/
const char *
nm_device_modem_get_device_id (NMDeviceModem *self)
{
g_return_val_if_fail (NM_IS_DEVICE_MODEM (self), NULL);
return NM_DEVICE_MODEM_GET_PRIVATE (self)->device_id;
}
/**
* nm_device_modem_get_operator_code:
* @self: a #NMDeviceModem
*
* The MCC and MNC (concatenated) of the network the modem is connected to.
*
* Returns: the operator code or %NULL if disconnected or not a 3GPP modem.
*
* Since: 1.20
**/
const char *
nm_device_modem_get_operator_code (NMDeviceModem *self)
{
g_return_val_if_fail (NM_IS_DEVICE_MODEM (self), NULL);
return NM_DEVICE_MODEM_GET_PRIVATE (self)->operator_code;
}
/**
* nm_device_modem_get_apn:
* @self: a #NMDeviceModem
*
* The access point name the modem is connected to.
*
* Returns: the APN name or %NULL if disconnected
*
* Since: 1.20
**/
const char *
nm_device_modem_get_apn (NMDeviceModem *self)
{
g_return_val_if_fail (NM_IS_DEVICE_MODEM (self), NULL);
return NM_DEVICE_MODEM_GET_PRIVATE (self)->apn;
}
static const char *
get_type_description (NMDevice *device)
{
NMDeviceModemCapabilities caps;
caps = nm_device_modem_get_current_capabilities (NM_DEVICE_MODEM (device));
if (caps & NM_DEVICE_MODEM_CAPABILITY_GSM_UMTS)
return "gsm";
else if (caps & NM_DEVICE_MODEM_CAPABILITY_CDMA_EVDO)
return "cdma";
else
return NULL;
}
#define MODEM_CAPS_3GPP(caps) (caps & (NM_DEVICE_MODEM_CAPABILITY_GSM_UMTS | \
NM_DEVICE_MODEM_CAPABILITY_LTE))
#define MODEM_CAPS_3GPP2(caps) (caps & (NM_DEVICE_MODEM_CAPABILITY_CDMA_EVDO))
static gboolean
connection_compatible (NMDevice *device, NMConnection *connection, GError **error)
{
NMSettingGsm *s_gsm;
NMSettingCdma *s_cdma;
NMDeviceModemCapabilities current_caps;
if (!NM_DEVICE_CLASS (nm_device_modem_parent_class)->connection_compatible (device, connection, error))
return FALSE;
if ( !nm_connection_is_type (connection, NM_SETTING_GSM_SETTING_NAME)
&& !nm_connection_is_type (connection, NM_SETTING_CDMA_SETTING_NAME)) {
g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
_("The connection was not a modem connection."));
return FALSE;
}
s_gsm = nm_connection_get_setting_gsm (connection);
s_cdma = nm_connection_get_setting_cdma (connection);
if (!s_cdma && !s_gsm) {
g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INVALID_CONNECTION,
_("The connection was not a valid modem connection."));
return FALSE;
}
current_caps = nm_device_modem_get_current_capabilities (NM_DEVICE_MODEM (device));
if (!(s_gsm && MODEM_CAPS_3GPP (current_caps)) && !(s_cdma && MODEM_CAPS_3GPP2 (current_caps))) {
g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
_("The device is lacking capabilities required by the connection."));
return FALSE;
}
return TRUE;
}
static GType
get_setting_type (NMDevice *device)
{
NMDeviceModemCapabilities caps;
caps = nm_device_modem_get_current_capabilities (NM_DEVICE_MODEM (device));
if (caps & (NM_DEVICE_MODEM_CAPABILITY_GSM_UMTS | NM_DEVICE_MODEM_CAPABILITY_LTE))
return NM_TYPE_SETTING_GSM;
else if (caps & NM_DEVICE_MODEM_CAPABILITY_CDMA_EVDO)
return NM_TYPE_SETTING_CDMA;
else
return G_TYPE_INVALID;
}
/*****************************************************************************/
static void
nm_device_modem_init (NMDeviceModem *device)
{
}
static void
init_dbus (NMObject *object)
{
NMDeviceModemPrivate *priv = NM_DEVICE_MODEM_GET_PRIVATE (object);
const NMPropertiesInfo property_info[] = {
{ NM_DEVICE_MODEM_MODEM_CAPABILITIES, &priv->caps },
{ NM_DEVICE_MODEM_CURRENT_CAPABILITIES, &priv->current_caps },
{ NM_DEVICE_MODEM_DEVICE_ID, &priv->device_id },
{ NM_DEVICE_MODEM_OPERATOR_CODE, &priv->operator_code },
{ NM_DEVICE_MODEM_APN, &priv->apn },
{ NULL },
};
NM_OBJECT_CLASS (nm_device_modem_parent_class)->init_dbus (object);
_nm_object_register_properties (object,
NM_DBUS_INTERFACE_DEVICE_MODEM,
property_info);
}
static void
finalize (GObject *object)
{
NMDeviceModemPrivate *priv = NM_DEVICE_MODEM_GET_PRIVATE (object);
g_free (priv->device_id);
g_free (priv->operator_code);
g_free (priv->apn);
G_OBJECT_CLASS (nm_device_modem_parent_class)->finalize (object);
}
static void
get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
NMDeviceModem *self = NM_DEVICE_MODEM (object);
switch (prop_id) {
case PROP_MODEM_CAPABILITIES:
g_value_set_flags (value, nm_device_modem_get_modem_capabilities (self));
break;
case PROP_CURRENT_CAPABILITIES:
g_value_set_flags (value, nm_device_modem_get_current_capabilities (self));
break;
case PROP_DEVICE_ID:
g_value_set_string (value, nm_device_modem_get_device_id (self));
break;
case PROP_OPERATOR_CODE:
g_value_set_string (value, nm_device_modem_get_operator_code (self));
break;
case PROP_APN:
g_value_set_string (value, nm_device_modem_get_apn (self));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
nm_device_modem_class_init (NMDeviceModemClass *modem_class)
{
GObjectClass *object_class = G_OBJECT_CLASS (modem_class);
NMObjectClass *nm_object_class = NM_OBJECT_CLASS (modem_class);
NMDeviceClass *device_class = NM_DEVICE_CLASS (modem_class);
object_class->get_property = get_property;
object_class->finalize = finalize;
nm_object_class->init_dbus = init_dbus;
device_class->get_type_description = get_type_description;
device_class->connection_compatible = connection_compatible;
device_class->get_setting_type = get_setting_type;
/**
* NMDeviceModem:modem-capabilities:
*
* The generic family of access technologies the modem supports. Not all
* capabilities are available at the same time however; some modems require
* a firmware reload or other reinitialization to switch between eg
* CDMA/EVDO and GSM/UMTS.
**/
obj_properties[PROP_MODEM_CAPABILITIES] =
g_param_spec_flags (NM_DEVICE_MODEM_MODEM_CAPABILITIES, "", "",
NM_TYPE_DEVICE_MODEM_CAPABILITIES,
NM_DEVICE_MODEM_CAPABILITY_NONE,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
/**
* NMDeviceModem:current-capabilities:
*
* The generic family of access technologies the modem currently supports
* without a firmware reload or reinitialization.
**/
obj_properties[PROP_CURRENT_CAPABILITIES] =
g_param_spec_flags (NM_DEVICE_MODEM_CURRENT_CAPABILITIES, "", "",
NM_TYPE_DEVICE_MODEM_CAPABILITIES,
NM_DEVICE_MODEM_CAPABILITY_NONE,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
/**
* NMDeviceModem:device-id:
*
* Since: 1.20
**/
obj_properties[PROP_DEVICE_ID] =
g_param_spec_string (NM_DEVICE_MODEM_DEVICE_ID, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
/**
* NMDeviceModem:operator-code:
*
* Since: 1.20
**/
obj_properties[PROP_OPERATOR_CODE] =
g_param_spec_string (NM_DEVICE_MODEM_OPERATOR_CODE, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
/**
* NMDeviceModem:apn:
*
* Since: 1.20
**/
obj_properties[PROP_APN] =
g_param_spec_string (NM_DEVICE_MODEM_APN, "", "",
NULL,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);
}