/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2005 - 2017 Red Hat, Inc.
 * Copyright (C) 2006 - 2008 Novell, Inc.
 */

#ifndef __NETWORKMANAGER_DEVICE_H__
#define __NETWORKMANAGER_DEVICE_H__

#include <netinet/in.h>

#include "nm-setting-connection.h"
#include "nm-dbus-object.h"
#include "nm-dbus-interface.h"
#include "nm-connection.h"
#include "nm-rfkill-manager.h"
#include "NetworkManagerUtils.h"
#include "nm-device-utils.h"

/* Properties */
#define NM_DEVICE_UDI                   "udi"
#define NM_DEVICE_PATH                  "path"
#define NM_DEVICE_IFACE                 "interface"
#define NM_DEVICE_IP_IFACE              "ip-interface"
#define NM_DEVICE_DRIVER                "driver"
#define NM_DEVICE_DRIVER_VERSION        "driver-version"
#define NM_DEVICE_FIRMWARE_VERSION      "firmware-version"
#define NM_DEVICE_CAPABILITIES          "capabilities"
#define NM_DEVICE_CARRIER               "carrier"
#define NM_DEVICE_IP4_ADDRESS           "ip4-address"
#define NM_DEVICE_IP4_CONFIG            "ip4-config"
#define NM_DEVICE_DHCP4_CONFIG          "dhcp4-config"
#define NM_DEVICE_IP6_CONFIG            "ip6-config"
#define NM_DEVICE_DHCP6_CONFIG          "dhcp6-config"
#define NM_DEVICE_STATE                 "state"
#define NM_DEVICE_STATE_REASON          "state-reason"
#define NM_DEVICE_ACTIVE_CONNECTION     "active-connection"
#define NM_DEVICE_DEVICE_TYPE           "device-type" /* ugh */
#define NM_DEVICE_LINK_TYPE             "link-type"
#define NM_DEVICE_MANAGED               "managed"
#define NM_DEVICE_AUTOCONNECT           "autoconnect"
#define NM_DEVICE_FIRMWARE_MISSING      "firmware-missing"
#define NM_DEVICE_NM_PLUGIN_MISSING     "nm-plugin-missing"
#define NM_DEVICE_AVAILABLE_CONNECTIONS "available-connections"
#define NM_DEVICE_PHYSICAL_PORT_ID      "physical-port-id"
#define NM_DEVICE_MTU                   "mtu"
#define NM_DEVICE_HW_ADDRESS            "hw-address"

/* "perm-hw-address" is exposed on D-Bus both for NMDeviceEthernet
 * and NMDeviceWifi. */
#define NM_DEVICE_PERM_HW_ADDRESS "perm-hw-address"

#define NM_DEVICE_METERED        "metered"
#define NM_DEVICE_LLDP_NEIGHBORS "lldp-neighbors"
#define NM_DEVICE_REAL           "real"

/* "parent" is exposed on D-Bus by subclasses like NMDeviceIPTunnel */
#define NM_DEVICE_PARENT "parent"

/* the "slaves" property is internal in the parent class, but exposed
 * by the derived classes NMDeviceBond, NMDeviceBridge, NMDeviceTeam,
 * NMDeviceOvsBridge and NMDeviceOvsPort. */
#define NM_DEVICE_SLAVES "slaves" /* partially internal */

#define NM_DEVICE_TYPE_DESC          "type-desc"          /* Internal only */
#define NM_DEVICE_RFKILL_TYPE        "rfkill-type"        /* Internal only */
#define NM_DEVICE_IFINDEX            "ifindex"            /* Internal only */
#define NM_DEVICE_MASTER             "master"             /* Internal only */
#define NM_DEVICE_HAS_PENDING_ACTION "has-pending-action" /* Internal only */

/* Internal signals */
#define NM_DEVICE_DNS_LOOKUP_DONE       "dns-lookup-done"
#define NM_DEVICE_IP4_CONFIG_CHANGED    "ip4-config-changed"
#define NM_DEVICE_IP6_CONFIG_CHANGED    "ip6-config-changed"
#define NM_DEVICE_IP6_PREFIX_DELEGATED  "ip6-prefix-delegated"
#define NM_DEVICE_IP6_SUBNET_NEEDED     "ip6-subnet-needed"
#define NM_DEVICE_REMOVED               "removed"
#define NM_DEVICE_RECHECK_AUTO_ACTIVATE "recheck-auto-activate"
#define NM_DEVICE_RECHECK_ASSUME        "recheck-assume"
#define NM_DEVICE_STATE_CHANGED         "state-changed"
#define NM_DEVICE_LINK_INITIALIZED      "link-initialized"
#define NM_DEVICE_AUTOCONNECT_ALLOWED   "autoconnect-allowed"

#define NM_DEVICE_STATISTICS_REFRESH_RATE_MS "refresh-rate-ms"
#define NM_DEVICE_STATISTICS_TX_BYTES        "tx-bytes"
#define NM_DEVICE_STATISTICS_RX_BYTES        "rx-bytes"

#define NM_DEVICE_IP4_CONNECTIVITY "ip4-connectivity"
#define NM_DEVICE_IP6_CONNECTIVITY "ip6-connectivity"
#define NM_DEVICE_INTERFACE_FLAGS  "interface-flags"

#define NM_TYPE_DEVICE            (nm_device_get_type())
#define NM_DEVICE(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_DEVICE, NMDevice))
#define NM_DEVICE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_DEVICE, NMDeviceClass))
#define NM_IS_DEVICE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_DEVICE))
#define NM_IS_DEVICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_DEVICE))
#define NM_DEVICE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_DEVICE, NMDeviceClass))

typedef enum NMActStageReturn NMActStageReturn;

/* These flags affect whether a connection is considered available on a device
 * (check_connection_available()). The flags should have the meaning of relaxing
 * a condition, so that adding a flag might make a connection available that would
 * not be available otherwise. Adding a flag should never make a connection
 * not available if it would be available otherwise. */
typedef enum { /*< skip >*/
               NM_DEVICE_CHECK_CON_AVAILABLE_NONE = 0,

               /* since NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST is a collection of flags with more fine grained
     * parts, this flag in general indicates that this is a user-request. */
               _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST = (1L << 0),

               /* we also consider devices which have no carrier but are still waiting for the driver
     * to detect carrier. Usually, such devices are not yet available, however for a user-request
     * they are. They might fail later if carrier doesn't come. */
               _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST_WAITING_CARRIER = (1L << 1),

               /* usually, a profile is only available if the Wi-Fi AP is in range. For an
     * explicit user request, we also consider profiles for APs that are not (yet)
     * visible. */
               _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST_IGNORE_AP = (1L << 2),

               /* a device can be marked as unmanaged for various reasons. Some of these reasons
     * are authoritative, others not. Non-authoritative reasons can be overruled by
     * `nmcli device set $DEVICE managed yes`. Also, for an explicit user activation
     * request we may want to consider the device as managed. This flag makes devices
     * that are unmanaged appear available. */
               _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST_OVERRULE_UNMANAGED = (1L << 3),

               /* a collection of flags, that are commonly set for an explicit user-request. */
               NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST =
                   _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST
                   | _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST_WAITING_CARRIER
                   | _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST_IGNORE_AP
                   | _NM_DEVICE_CHECK_CON_AVAILABLE_FOR_USER_REQUEST_OVERRULE_UNMANAGED,

               NM_DEVICE_CHECK_CON_AVAILABLE_ALL = (1L << 4) - 1,
} NMDeviceCheckConAvailableFlags;

struct _NMDevicePrivate;

struct _NMDevice {
    NMDBusObject             parent;
    struct _NMDevicePrivate *_priv;
    CList                    devices_lst;
};

/* The flags have an relaxing meaning, that means, specifying more flags, can make
 * a device appear more available. It can never make a device less available. */
typedef enum { /*< skip >*/
               NM_DEVICE_CHECK_DEV_AVAILABLE_NONE = 0,

               /* the device is considered available, even if it has no carrier.
     *
     * For various device types (software devices) we ignore carrier based
     * on the type. So, for them, this flag has no effect anyway. */
               _NM_DEVICE_CHECK_DEV_AVAILABLE_IGNORE_CARRIER = (1L << 0),

               NM_DEVICE_CHECK_DEV_AVAILABLE_FOR_USER_REQUEST =
                   _NM_DEVICE_CHECK_DEV_AVAILABLE_IGNORE_CARRIER,

               NM_DEVICE_CHECK_DEV_AVAILABLE_ALL = (1L << 1) - 1,
} NMDeviceCheckDevAvailableFlags;

typedef void (*NMDeviceDeactivateCallback)(NMDevice *self, GError *error, gpointer user_data);

typedef struct _NMDeviceClass {
    NMDBusObjectClass parent;

    struct _NMDeviceClass *default_type_description_klass;
    const char *           default_type_description;

    const char *connection_type_supported;

    /* most device types, can only handle profiles of a particular type. This
     * is the connection.type setting, as checked by nm_device_check_connection_compatible() */
    const char *connection_type_check_compatible;

    const NMLinkType *link_types;

    /* if the device MTU is set based on parent's one, this specifies
     * a delta in the MTU allowed value due the encapsulation overhead */
    guint16 mtu_parent_delta;

    /* Whether the device type is a master-type. This depends purely on the
     * type (NMDeviceClass), not the actual device instance. */
    bool is_master : 1;

    /* Force setting the MTU actually means first setting the MTU
     * to (desired_MTU-1) and then setting the desired_MTU
     * so that kernel actually applies the MTU, otherwise
     * kernel will ignore the request if the link's MTU is the
     * same as the desired one.
     *
     * This is just a workaround made for bridges (ATM) that employ
     * a auto-MTU adjust mechanism if no MTU is manually set.
     */
    bool mtu_force_set : 1;

    /* Control whether to call stage1 and stage2 callbacks also for assuming
     * a device or for external activations. In this case, the callback must
     * take care not to touch the device's configuration. */
    bool act_stage1_prepare_also_for_external_or_assume : 1;
    bool act_stage2_config_also_for_external_or_assume : 1;

    bool act_stage1_prepare_set_hwaddr_ethernet : 1;

    bool can_reapply_change_ovs_external_ids : 1;

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

    void (*link_changed)(NMDevice *self, const NMPlatformLink *pllink);

    /**
     * create_and_realize():
     * @self: the #NMDevice
     * @connection: the #NMConnection being activated
     * @parent: the parent #NMDevice, if any
     * @out_plink: on success, a backing kernel network device if one exists.
     *   The returned pointer is owned by platform and only valid until the
     *   next platform operation.
     * @error: location to store error, or %NULL
     *
     * Create any backing resources (kernel devices, etc) required for this
     * device to activate @connection.  If the device is backed by a kernel
     * network device, that device should be returned in @out_plink after
     * being created.
     *
     * Returns: %TRUE on success, %FALSE on error
     */
    gboolean (*create_and_realize)(NMDevice *             self,
                                   NMConnection *         connection,
                                   NMDevice *             parent,
                                   const NMPlatformLink **out_plink,
                                   GError **              error);

    /**
     * realize_start_notify():
     * @self: the #NMDevice
     * @pllink: the #NMPlatformLink if backed by a kernel netdevice
     *
     * Hook for derived classes to be notfied during realize_start_setup()
     * and perform additional setup.
     *
     * The default implementation of NMDevice calls link_changed().
     */
    void (*realize_start_notify)(NMDevice *self, const NMPlatformLink *pllink);

    /**
     * unrealize():
     * @self: the #NMDevice
     *
     * Remove the device backing resources.
     */
    gboolean (*unrealize)(NMDevice *self, GError **error);

    /**
     * unrealize_notify():
     * @self: the #NMDevice
     *
     * Hook for derived classes to clear any properties that depend on backing resources
     * (kernel devices, etc). This is called by nm_device_unrealize() during unrealization.
     */
    void (*unrealize_notify)(NMDevice *self);

    /* Hardware state (IFF_UP) */
    gboolean (*can_unmanaged_external_down)(NMDevice *self);

    /* Carrier state (IFF_LOWER_UP) */
    void (*carrier_changed_notify)(NMDevice *, gboolean carrier);

    gboolean (*get_ip_iface_identifier)(NMDevice *self, NMUtilsIPv6IfaceId *out_iid);

    NMDeviceCapabilities (*get_generic_capabilities)(NMDevice *self);

    gboolean (*is_available)(NMDevice *self, NMDeviceCheckDevAvailableFlags flags);

    gboolean (*get_enabled)(NMDevice *self);

    void (*set_enabled)(NMDevice *self, gboolean enabled);

    /* let the subclass return additional NMPlatformRoutingRule (in form of NMPObject
     * pointers) that shall be added to the rules provided by this device.
     * The returned GPtrArray will be g_ptr_array_unref()'ed. The subclass may or
     * may not keep an additional reference and return this array again and again. */
    GPtrArray *(*get_extra_rules)(NMDevice *self);

    /* allow derived classes to override the result of nm_device_autoconnect_allowed().
     * If the value changes, the class should call nm_device_emit_recheck_auto_activate(),
     * which emits NM_DEVICE_RECHECK_AUTO_ACTIVATE signal. */
    gboolean (*get_autoconnect_allowed)(NMDevice *self);

    gboolean (*can_auto_connect)(NMDevice *            self,
                                 NMSettingsConnection *sett_conn,
                                 char **               specific_object);

    guint32 (*get_configured_mtu)(NMDevice *         self,
                                  NMDeviceMtuSource *out_source,
                                  gboolean *         out_force);

    /* allow the subclass to overwrite the routing table. This is mainly useful
     * to change from partial mode (route-table=0) to full-sync mode (route-table=254). */
    guint32 (*coerce_route_table)(NMDevice *self,
                                  int       addr_family,
                                  guint32   route_table,
                                  gboolean  is_user_config);

    const char *(*get_auto_ip_config_method)(NMDevice *self, int addr_family);

    /* Checks whether the connection is compatible with the device using
     * only the devices type and characteristics.  Does not use any live
     * network information like Wi-Fi scan lists etc.
     */
    gboolean (*check_connection_compatible)(NMDevice *    self,
                                            NMConnection *connection,
                                            GError **     error);

    /* Checks whether the connection is likely available to be activated,
     * including any live network information like scan lists.  The connection
     * is checked against the object defined by @specific_object, if given.
     * Returns TRUE if the connection is available; FALSE if not.
     *
     * The passed @flags affect whether a connection is considered
     * available or not. Adding more flags, means the connection is
     * *more* available.
     *
     * Specifying @specific_object can only reduce the availability of a connection.
     */
    gboolean (*check_connection_available)(NMDevice *                     self,
                                           NMConnection *                 connection,
                                           NMDeviceCheckConAvailableFlags flags,
                                           const char *                   specific_object,
                                           GError **                      error);

    gboolean (*complete_connection)(NMDevice *           self,
                                    NMConnection *       connection,
                                    const char *         specific_object,
                                    NMConnection *const *existing_connections,
                                    GError **            error);

    NMActStageReturn (*act_stage1_prepare)(NMDevice *self, NMDeviceStateReason *out_failure_reason);
    NMActStageReturn (*act_stage2_config)(NMDevice *self, NMDeviceStateReason *out_failure_reason);
    NMActStageReturn (*act_stage3_ip_config_start)(NMDevice *           self,
                                                   int                  addr_family,
                                                   gpointer *           out_config,
                                                   NMDeviceStateReason *out_failure_reason);
    NMActStageReturn (*act_stage4_ip_config_timeout)(NMDevice *           self,
                                                     int                  addr_family,
                                                     NMDeviceStateReason *out_failure_reason);

    void (*ip4_config_pre_commit)(NMDevice *self, NMIP4Config *config);

    /* Async deactivating (in the DEACTIVATING phase) */
    void (*deactivate_async)(NMDevice *                 self,
                             GCancellable *             cancellable,
                             NMDeviceDeactivateCallback callback,
                             gpointer                   user_data);

    void (*deactivate_reset_hw_addr)(NMDevice *self);

    /* Sync deactivating (in the DISCONNECTED phase) */
    void (*deactivate)(NMDevice *self);

    const char *(*get_type_description)(NMDevice *self);

    const char *(*get_s390_subchannels)(NMDevice *self);

    /* Update the connection with currently configured L2 settings */
    void (*update_connection)(NMDevice *device, NMConnection *connection);

    gboolean (*master_update_slave_connection)(NMDevice *    self,
                                               NMDevice *    slave,
                                               NMConnection *connection,
                                               GError **     error);

    gboolean (*enslave_slave)(NMDevice *    self,
                              NMDevice *    slave,
                              NMConnection *connection,
                              gboolean      configure);

    void (*release_slave)(NMDevice *self, NMDevice *slave, gboolean configure);

    void (*parent_changed_notify)(NMDevice *self,
                                  int       old_ifindex,
                                  NMDevice *old_parent,
                                  int       new_ifindex,
                                  NMDevice *new_parent);

    gboolean (*owns_iface)(NMDevice *self, const char *iface);

    NMConnection *(*new_default_connection)(NMDevice *self);

    gboolean (*unmanaged_on_quit)(NMDevice *self);

    gboolean (*can_reapply_change)(NMDevice *  self,
                                   const char *setting_name,
                                   NMSetting * s_old,
                                   NMSetting * s_new,
                                   GHashTable *diffs,
                                   GError **   error);

    void (*reapply_connection)(NMDevice *self, NMConnection *con_old, NMConnection *con_new);

    guint32 (*get_dhcp_timeout_for_device)(NMDevice *self, int addr_family);

    gboolean (*get_guessed_metered)(NMDevice *self);

    gboolean (*can_update_from_platform_link)(NMDevice *self, const NMPlatformLink *plink);

    gboolean (*set_platform_mtu)(NMDevice *self, guint32 mtu);

    const char *(*get_dhcp_anycast_address)(NMDevice *self);

} NMDeviceClass;

GType nm_device_get_type(void);

struct _NMDedupMultiIndex *nm_device_get_multi_index(NMDevice *self);
NMNetns *                  nm_device_get_netns(NMDevice *self);
NMPlatform *               nm_device_get_platform(NMDevice *self);

const char *nm_device_get_udi(NMDevice *dev);
const char *nm_device_get_iface(NMDevice *dev);

static inline const char *
_nm_device_get_iface(NMDevice *device)
{
    /* like nm_device_get_iface(), but gracefully accept NULL without
     * asserting. */
    return device ? nm_device_get_iface(device) : NULL;
}

int          nm_device_get_ifindex(NMDevice *dev);
gboolean     nm_device_is_software(NMDevice *dev);
gboolean     nm_device_is_real(NMDevice *dev);
const char * nm_device_get_ip_iface(NMDevice *dev);
const char * nm_device_get_ip_iface_from_platform(NMDevice *dev);
int          nm_device_get_ip_ifindex(const NMDevice *dev);
const char * nm_device_get_driver(NMDevice *dev);
const char * nm_device_get_driver_version(NMDevice *dev);
const char * nm_device_get_type_desc(NMDevice *dev);
const char * nm_device_get_type_description(NMDevice *dev);
NMDeviceType nm_device_get_device_type(NMDevice *dev);
NMLinkType   nm_device_get_link_type(NMDevice *dev);
NMMetered    nm_device_get_metered(NMDevice *dev);

guint32 nm_device_get_route_table(NMDevice *self, int addr_family);
guint32 nm_device_get_route_metric(NMDevice *dev, int addr_family);

guint32 nm_device_get_route_metric_default(NMDeviceType device_type);

const char *nm_device_get_hw_address(NMDevice *dev);
const char *nm_device_get_permanent_hw_address(NMDevice *self);
const char *nm_device_get_permanent_hw_address_full(NMDevice *self,
                                                    gboolean  force_freeze,
                                                    gboolean *out_is_fake);
const char *nm_device_get_initial_hw_address(NMDevice *dev);

NMProxyConfig *nm_device_get_proxy_config(NMDevice *dev);

NMDhcpConfig *nm_device_get_dhcp_config(NMDevice *dev, int addr_family);
NMIP4Config * nm_device_get_ip4_config(NMDevice *dev);
void          nm_device_replace_vpn4_config(NMDevice *dev, NMIP4Config *old, NMIP4Config *config);

NMIP6Config *nm_device_get_ip6_config(NMDevice *dev);
void         nm_device_replace_vpn6_config(NMDevice *dev, NMIP6Config *old, NMIP6Config *config);

void nm_device_capture_initial_config(NMDevice *dev);

int       nm_device_parent_get_ifindex(NMDevice *dev);
NMDevice *nm_device_parent_get_device(NMDevice *dev);
void      nm_device_parent_set_ifindex(NMDevice *self, int parent_ifindex);
gboolean  nm_device_parent_notify_changed(NMDevice *self,
                                          NMDevice *change_candidate,
                                          gboolean  device_removed);

const char *nm_device_parent_find_for_connection(NMDevice *  self,
                                                 const char *current_setting_parent);

/* Master */
gboolean nm_device_is_master(NMDevice *dev);

/* Slave */
NMDevice *nm_device_get_master(NMDevice *dev);

NMActRequest *         nm_device_get_act_request(NMDevice *dev);
NMSettingsConnection * nm_device_get_settings_connection(NMDevice *dev);
NMConnection *         nm_device_get_settings_connection_get_connection(NMDevice *self);
NMConnection *         nm_device_get_applied_connection(NMDevice *dev);
gboolean               nm_device_has_unmodified_applied_connection(NMDevice *            self,
                                                                   NMSettingCompareFlags compare_flags);
NMActivationStateFlags nm_device_get_activation_state_flags(NMDevice *self);

gpointer /* (NMSetting *) */ nm_device_get_applied_setting(NMDevice *dev, GType setting_type);

void nm_device_removed(NMDevice *self, gboolean unconfigure_ip_config);

gboolean nm_device_ignore_carrier_by_default(NMDevice *self);

gboolean nm_device_is_available(NMDevice *dev, NMDeviceCheckDevAvailableFlags flags);
gboolean nm_device_has_carrier(NMDevice *dev);

NMConnection *nm_device_generate_connection(NMDevice *self,
                                            NMDevice *master,
                                            gboolean *out_maybe_later,
                                            GError ** error);

gboolean nm_device_master_update_slave_connection(NMDevice *    master,
                                                  NMDevice *    slave,
                                                  NMConnection *connection,
                                                  GError **     error);

gboolean
nm_device_can_auto_connect(NMDevice *self, NMSettingsConnection *sett_conn, char **specific_object);

gboolean nm_device_complete_connection(NMDevice *           device,
                                       NMConnection *       connection,
                                       const char *         specific_object,
                                       NMConnection *const *existing_connections,
                                       GError **            error);

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

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

gboolean nm_device_can_assume_connections(NMDevice *self);
gboolean nm_device_unmanage_on_quit(NMDevice *self);

gboolean nm_device_spec_match_list(NMDevice *device, const GSList *specs);
int      nm_device_spec_match_list_full(NMDevice *self, const GSList *specs, int no_match_value);

gboolean nm_device_is_activating(NMDevice *dev);
gboolean nm_device_autoconnect_allowed(NMDevice *self);

NMDeviceState nm_device_get_state(NMDevice *device);

gboolean nm_device_get_enabled(NMDevice *device);

void nm_device_set_enabled(NMDevice *device, gboolean enabled);

RfKillType nm_device_get_rfkill_type(NMDevice *device);

/* IPv6 prefix delegation */

void nm_device_request_ip6_prefixes(NMDevice *self, int needed_prefixes);

gboolean nm_device_needs_ip6_subnet(NMDevice *self);

void nm_device_use_ip6_subnet(NMDevice *self, const NMPlatformIP6Address *subnet);

void nm_device_copy_ip6_dns_config(NMDevice *self, NMDevice *from_device);

/**
 * NMUnmanagedFlags:
 * @NM_UNMANAGED_NONE: placeholder value
 * @NM_UNMANAGED_SLEEPING: %TRUE when unmanaged because NM is sleeping.
 * @NM_UNMANAGED_QUITTING: %TRUE when unmanaged because NM is shutting down.
 * @NM_UNMANAGED_PARENT: %TRUE when unmanaged due to parent device being unmanaged
 * @NM_UNMANAGED_BY_TYPE: %TRUE for unmanaging device by type, like loopback.
 * @NM_UNMANAGED_PLATFORM_INIT: %TRUE when unmanaged because platform link not
 *   yet initialized. Unrealized device are also unmanaged for this reason.
 * @NM_UNMANAGED_USER_EXPLICIT: %TRUE when unmanaged by explicit user decision
 *   (e.g. via a D-Bus command)
 * @NM_UNMANAGED_USER_SETTINGS: %TRUE when unmanaged by user decision via
 *   the settings plugin (for example keyfile.unmanaged-devices or ifcfg-rh's
 *   NM_CONTROLLED=no). Although this is user-configuration (provided from
 *   the settings plugins, such as NM_CONTROLLED=no in ifcfg-rh), it cannot
 *   be overruled and is authoritative. That is because users may depend on
 *   dropping a ifcfg-rh file to ensure the device is unmanaged.
 * @NM_UNMANAGED_USER_CONF: %TRUE when unmanaged by user decision via
 *   the NetworkManager.conf ("unmanaged" in the [device] section).
 *   Contray to @NM_UNMANAGED_USER_SETTINGS, this can be overwritten via
 *   D-Bus.
 * @NM_UNMANAGED_BY_DEFAULT: %TRUE for certain device types where we unmanage
 *   them by default
 * @NM_UNMANAGED_USER_UDEV: %TRUE when unmanaged by user decision (via UDev rule)
 * @NM_UNMANAGED_EXTERNAL_DOWN: %TRUE when unmanaged because !IFF_UP and not created by NM
 * @NM_UNMANAGED_IS_SLAVE: indicates that the device is enslaved. Note that
 *   setting the NM_UNMANAGED_IS_SLAVE to %TRUE makes no sense, this flag has only
 *   meaning to set a slave device as managed if the parent is managed too.
 */
typedef enum {
    NM_UNMANAGED_NONE = 0,

    /* these flags are authoritative. If one of them is set,
     * the device cannot be managed. */
    NM_UNMANAGED_SLEEPING      = (1LL << 0),
    NM_UNMANAGED_QUITTING      = (1LL << 1),
    NM_UNMANAGED_PARENT        = (1LL << 2),
    NM_UNMANAGED_BY_TYPE       = (1LL << 3),
    NM_UNMANAGED_PLATFORM_INIT = (1LL << 4),
    NM_UNMANAGED_USER_EXPLICIT = (1LL << 5),
    NM_UNMANAGED_USER_SETTINGS = (1LL << 6),

    /* These flags can be non-effective and be overwritten
     * by other flags. */
    NM_UNMANAGED_BY_DEFAULT    = (1LL << 7),
    NM_UNMANAGED_USER_CONF     = (1LL << 8),
    NM_UNMANAGED_USER_UDEV     = (1LL << 9),
    NM_UNMANAGED_EXTERNAL_DOWN = (1LL << 10),
    NM_UNMANAGED_IS_SLAVE      = (1LL << 11),

    NM_UNMANAGED_ALL = ((1LL << 12) - 1),
} NMUnmanagedFlags;

typedef enum {
    NM_UNMAN_FLAG_OP_SET_MANAGED   = FALSE,
    NM_UNMAN_FLAG_OP_SET_UNMANAGED = TRUE,
    NM_UNMAN_FLAG_OP_FORGET        = 2,
} NMUnmanFlagOp;

const char *nm_unmanaged_flags2str(NMUnmanagedFlags flags, char *buf, gsize len);

gboolean         nm_device_get_managed(NMDevice *device, gboolean for_user_request);
NMUnmanagedFlags nm_device_get_unmanaged_mask(NMDevice *device, NMUnmanagedFlags flag);
NMUnmanagedFlags nm_device_get_unmanaged_flags(NMDevice *device, NMUnmanagedFlags flag);
void nm_device_set_unmanaged_flags(NMDevice *device, NMUnmanagedFlags flags, NMUnmanFlagOp set_op);
void nm_device_set_unmanaged_by_flags(NMDevice *          device,
                                      NMUnmanagedFlags    flags,
                                      NMUnmanFlagOp       set_op,
                                      NMDeviceStateReason reason);
void nm_device_set_unmanaged_by_flags_queue(NMDevice *          self,
                                            NMUnmanagedFlags    flags,
                                            NMUnmanFlagOp       set_op,
                                            NMDeviceStateReason reason);
void nm_device_set_unmanaged_by_user_settings(NMDevice *self);
void nm_device_set_unmanaged_by_user_udev(NMDevice *self);
void nm_device_set_unmanaged_by_user_conf(NMDevice *self);
void nm_device_set_unmanaged_by_quitting(NMDevice *device);

gboolean nm_device_check_unrealized_device_managed(NMDevice *self);

gboolean nm_device_is_nm_owned(NMDevice *device);

gboolean nm_device_has_capability(NMDevice *self, NMDeviceCapabilities caps);

/*****************************************************************************/

void nm_device_assume_state_get(NMDevice *   self,
                                gboolean *   out_assume_state_guess_assume,
                                const char **out_assume_state_connection_uuid);
void nm_device_assume_state_reset(NMDevice *self);

/*****************************************************************************/

gboolean nm_device_realize_start(NMDevice *            device,
                                 const NMPlatformLink *plink,
                                 gboolean              assume_state_guess_assume,
                                 const char *          assume_state_connection_uuid,
                                 gboolean              set_nm_owned,
                                 NMUnmanFlagOp         unmanaged_user_explicit,
                                 gboolean *            out_compatible,
                                 GError **             error);
void     nm_device_realize_finish(NMDevice *self, const NMPlatformLink *plink);
gboolean nm_device_create_and_realize(NMDevice *    self,
                                      NMConnection *connection,
                                      NMDevice *    parent,
                                      GError **     error);
gboolean nm_device_unrealize(NMDevice *device, gboolean remove_resources, GError **error);

void nm_device_update_from_platform_link(NMDevice *self, const NMPlatformLink *plink);

typedef enum {
    NM_DEVICE_AUTOCONNECT_BLOCKED_NONE = 0,

    NM_DEVICE_AUTOCONNECT_BLOCKED_USER = (1LL << 0),

    NM_DEVICE_AUTOCONNECT_BLOCKED_WRONG_PIN         = (1LL << 1),
    NM_DEVICE_AUTOCONNECT_BLOCKED_MANUAL_DISCONNECT = (1LL << 2),
    NM_DEVICE_AUTOCONNECT_BLOCKED_SIM_MISSING       = (1LL << 3),
    NM_DEVICE_AUTOCONNECT_BLOCKED_INIT_FAILED       = (1LL << 4),

    _NM_DEVICE_AUTOCONNECT_BLOCKED_LAST,

    NM_DEVICE_AUTOCONNECT_BLOCKED_ALL = (((_NM_DEVICE_AUTOCONNECT_BLOCKED_LAST - 1) << 1) - 1),

    NM_DEVICE_AUTOCONNECT_BLOCKED_INTERNAL =
        NM_DEVICE_AUTOCONNECT_BLOCKED_ALL & ~NM_DEVICE_AUTOCONNECT_BLOCKED_USER,
} NMDeviceAutoconnectBlockedFlags;

NMDeviceAutoconnectBlockedFlags
nm_device_autoconnect_blocked_get(NMDevice *device, NMDeviceAutoconnectBlockedFlags mask);

void nm_device_autoconnect_blocked_set_full(NMDevice *                      device,
                                            NMDeviceAutoconnectBlockedFlags mask,
                                            NMDeviceAutoconnectBlockedFlags values);

static inline void
nm_device_autoconnect_blocked_set(NMDevice *device, NMDeviceAutoconnectBlockedFlags mask)
{
    nm_device_autoconnect_blocked_set_full(device, mask, mask);
}

static inline void
nm_device_autoconnect_blocked_unset(NMDevice *device, NMDeviceAutoconnectBlockedFlags mask)
{
    nm_device_autoconnect_blocked_set_full(device, mask, NM_DEVICE_AUTOCONNECT_BLOCKED_NONE);
}

void nm_device_emit_recheck_auto_activate(NMDevice *device);

NMDeviceSysIfaceState nm_device_sys_iface_state_get(NMDevice *device);

gboolean nm_device_sys_iface_state_is_external(NMDevice *self);
gboolean nm_device_sys_iface_state_is_external_or_assume(NMDevice *self);

void nm_device_sys_iface_state_set(NMDevice *device, NMDeviceSysIfaceState sys_iface_state);

void nm_device_state_changed(NMDevice *device, NMDeviceState state, NMDeviceStateReason reason);

void nm_device_queue_state(NMDevice *self, NMDeviceState state, NMDeviceStateReason reason);

gboolean nm_device_get_firmware_missing(NMDevice *self);

void nm_device_disconnect_active_connection(NMActiveConnection *          active,
                                            NMDeviceStateReason           device_reason,
                                            NMActiveConnectionStateReason active_reason);

void nm_device_queue_activation(NMDevice *device, NMActRequest *req);

gboolean nm_device_supports_vlans(NMDevice *device);

gboolean
nm_device_add_pending_action(NMDevice *device, const char *action, gboolean assert_not_yet_pending);
gboolean
nm_device_remove_pending_action(NMDevice *device, const char *action, gboolean assert_is_pending);
const char *nm_device_has_pending_action_reason(NMDevice *device);

static inline gboolean
nm_device_has_pending_action(NMDevice *device)
{
    return !!nm_device_has_pending_action_reason(device);
}

NMSettingsConnection *
nm_device_get_best_connection(NMDevice *device, const char *specific_object, GError **error);

gboolean nm_device_check_connection_available(NMDevice *                     device,
                                              NMConnection *                 connection,
                                              NMDeviceCheckConAvailableFlags flags,
                                              const char *                   specific_object,
                                              GError **                      error);

void nm_device_notify_availability_maybe_changed(NMDevice *self);

gboolean nm_device_owns_iface(NMDevice *device, const char *iface);

NMConnection *nm_device_new_default_connection(NMDevice *self);

const NMPObject *nm_device_get_best_default_route(NMDevice *self, int addr_family);

void nm_device_spawn_iface_helper(NMDevice *self);

gboolean nm_device_reapply(NMDevice *self, NMConnection *connection, GError **error);
void     nm_device_reapply_settings_immediately(NMDevice *self);

void nm_device_update_firewall_zone(NMDevice *self);
void nm_device_update_metered(NMDevice *self);
void nm_device_reactivate_ip_config(NMDevice *         device,
                                    int                addr_family,
                                    NMSettingIPConfig *s_ip_old,
                                    NMSettingIPConfig *s_ip_new);

gboolean nm_device_update_hw_address(NMDevice *self);
void     nm_device_update_initial_hw_address(NMDevice *self);
void     nm_device_update_permanent_hw_address(NMDevice *self, gboolean force_freeze);
void     nm_device_update_dynamic_ip_setup(NMDevice *self);
guint    nm_device_get_supplicant_timeout(NMDevice *self);

gboolean nm_device_auth_retries_try_next(NMDevice *self);

gboolean nm_device_hw_addr_get_cloned(NMDevice *    self,
                                      NMConnection *connection,
                                      gboolean      is_wifi,
                                      char **       hwaddr,
                                      gboolean *    preserve,
                                      GError **     error);

typedef struct _NMDeviceConnectivityHandle NMDeviceConnectivityHandle;

typedef void (*NMDeviceConnectivityCallback)(NMDevice *                  self,
                                             NMDeviceConnectivityHandle *handle,
                                             NMConnectivityState         state,
                                             GError *                    error,
                                             gpointer                    user_data);

void nm_device_check_connectivity_update_interval(NMDevice *self);

NMDeviceConnectivityHandle *nm_device_check_connectivity(NMDevice *                   self,
                                                         int                          addr_family,
                                                         NMDeviceConnectivityCallback callback,
                                                         gpointer                     user_data);

void nm_device_check_connectivity_cancel(NMDeviceConnectivityHandle *handle);

NMConnectivityState nm_device_get_connectivity_state(NMDevice *self, int addr_family);

typedef struct _NMBtVTableNetworkServer NMBtVTableNetworkServer;

typedef void (*NMBtVTableRegisterCallback)(GError *error, gpointer user_data);

struct _NMBtVTableNetworkServer {
    gboolean (*is_available)(const NMBtVTableNetworkServer *vtable,
                             const char *                   addr,
                             NMDevice *                     device_accept_busy);

    gboolean (*register_bridge)(const NMBtVTableNetworkServer *vtable,
                                const char *                   addr,
                                NMDevice *                     device,
                                GCancellable *                 cancellable,
                                NMBtVTableRegisterCallback     callback,
                                gpointer                       callback_user_data,
                                GError **                      error);
    gboolean (*unregister_bridge)(const NMBtVTableNetworkServer *vtable, NMDevice *device);
};

gboolean nm_device_is_vpn(NMDevice *self);

const char *
nm_device_get_hostname_from_dns_lookup(NMDevice *self, int addr_family, gboolean *out_pending);

void nm_device_clear_dns_lookup_data(NMDevice *self);

#endif /* __NETWORKMANAGER_DEVICE_H__ */
