NetworkManager/src/core/nm-dhcp-config.c

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

#include "src/core/nm-default-daemon.h"

#include "nm-dhcp-config.h"

#include "nm-dbus-interface.h"
#include "nm-utils.h"
#include "nm-dbus-object.h"
#include "nm-core-utils.h"

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

#define NM_TYPE_DHCP4_CONFIG (nm_dhcp4_config_get_type())
#define NM_DHCP4_CONFIG(obj) \
    (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_DHCP4_CONFIG, NMDhcp4Config))
#define NM_DHCP4_CONFIG_CLASS(klass) \
    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_DHCP4_CONFIG, NMDhcp4ConfigClass))
#define NM_IS_DHCP4_CONFIG(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_DHCP4_CONFIG))
#define NM_IS_DHCP4_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_DHCP4_CONFIG))
#define NM_DHCP4_CONFIG_GET_CLASS(obj) \
    (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_DHCP4_CONFIG, NMDhcp4ConfigClass))

typedef struct _NMDhcp4Config      NMDhcp4Config;
typedef struct _NMDhcp4ConfigClass NMDhcp4ConfigClass;

static GType nm_dhcp4_config_get_type(void);

#define NM_TYPE_DHCP6_CONFIG (nm_dhcp6_config_get_type())
#define NM_DHCP6_CONFIG(obj) \
    (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_DHCP6_CONFIG, NMDhcp6Config))
#define NM_DHCP6_CONFIG_CLASS(klass) \
    (G_TYPE_CHECK_CLASS_CAST((klass), NM_TYPE_DHCP6_CONFIG, NMDhcp6ConfigClass))
#define NM_IS_DHCP6_CONFIG(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj), NM_TYPE_DHCP6_CONFIG))
#define NM_IS_DHCP6_CONFIG_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), NM_TYPE_DHCP6_CONFIG))
#define NM_DHCP6_CONFIG_GET_CLASS(obj) \
    (G_TYPE_INSTANCE_GET_CLASS((obj), NM_TYPE_DHCP6_CONFIG, NMDhcp6ConfigClass))

typedef struct _NMDhcp6Config      NMDhcp6Config;
typedef struct _NMDhcp6ConfigClass NMDhcp6ConfigClass;

static GType nm_dhcp6_config_get_type(void);

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

NM_GOBJECT_PROPERTIES_DEFINE(NMDhcpConfig, PROP_OPTIONS, );

typedef struct {
    GVariant *options;
} NMDhcpConfigPrivate;

struct _NMDhcpConfig {
    NMDBusObject        parent;
    NMDhcpConfigPrivate _priv;
};

struct _NMDhcpConfigClass {
    NMDBusObjectClass parent;
    int               addr_family;
};

G_DEFINE_ABSTRACT_TYPE(NMDhcpConfig, nm_dhcp_config, NM_TYPE_DBUS_OBJECT)

#define NM_DHCP_CONFIG_GET_PRIVATE(self) _NM_GET_PRIVATE(self, NMDhcpConfig, NM_IS_DHCP_CONFIG)

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

int
nm_dhcp_config_get_addr_family(NMDhcpConfig *self)
{
    return NM_DHCP_CONFIG_GET_CLASS(self)->addr_family;
}

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

void
nm_dhcp_config_set_options(NMDhcpConfig *self, GHashTable *options)
{
    NMDhcpConfigPrivate *priv;

    g_return_if_fail(NM_IS_DHCP_CONFIG(self));
    g_return_if_fail(options);

    priv = NM_DHCP_CONFIG_GET_PRIVATE(self);

    nm_g_variant_unref(priv->options);
    priv->options = g_variant_ref_sink(nm_strdict_to_variant_asv(options));
    _notify(self, PROP_OPTIONS);
}

const char *
nm_dhcp_config_get_option(NMDhcpConfig *self, const char *key)
{
    NMDhcpConfigPrivate *priv;
    const char *         value;

    g_return_val_if_fail(NM_IS_DHCP_CONFIG(self), NULL);
    g_return_val_if_fail(key, NULL);

    priv = NM_DHCP_CONFIG_GET_PRIVATE(self);

    if (priv->options && g_variant_lookup(priv->options, key, "&s", &value))
        return value;
    else
        return NULL;
}

GVariant *
nm_dhcp_config_get_options(NMDhcpConfig *self)
{
    g_return_val_if_fail(NM_IS_DHCP_CONFIG(self), NULL);

    return NM_DHCP_CONFIG_GET_PRIVATE(self)->options;
}

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

static void
get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NMDhcpConfigPrivate *priv = NM_DHCP_CONFIG_GET_PRIVATE(object);

    switch (prop_id) {
    case PROP_OPTIONS:
        g_value_set_variant(value, priv->options ?: nm_g_variant_singleton_aLsvI());
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

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

static void
nm_dhcp_config_init(NMDhcpConfig *self)
{}

NMDhcpConfig *
nm_dhcp_config_new(int addr_family)
{
    nm_assert_addr_family(addr_family);

    return g_object_new(addr_family != AF_INET ? NM_TYPE_DHCP6_CONFIG : NM_TYPE_DHCP4_CONFIG, NULL);
}

static void
finalize(GObject *object)
{
    NMDhcpConfigPrivate *priv = NM_DHCP_CONFIG_GET_PRIVATE(object);

    nm_g_variant_unref(priv->options);

    G_OBJECT_CLASS(nm_dhcp_config_parent_class)->finalize(object);
}

static void
nm_dhcp_config_class_init(NMDhcpConfigClass *config_class)
{
    GObjectClass *object_class = G_OBJECT_CLASS(config_class);

    object_class->get_property = get_property;
    object_class->finalize     = finalize;

    obj_properties[PROP_OPTIONS] = g_param_spec_variant(NM_DHCP_CONFIG_OPTIONS,
                                                        "",
                                                        "",
                                                        G_VARIANT_TYPE("a{sv}"),
                                                        NULL,
                                                        G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);

    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);
}

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

struct _NMDhcp4Config {
    NMDhcpConfig parent;
};

struct _NMDhcp4ConfigClass {
    NMDhcpConfigClass parent;
};

G_DEFINE_TYPE(NMDhcp4Config, nm_dhcp4_config, NM_TYPE_DHCP_CONFIG)

static void
nm_dhcp4_config_init(NMDhcp4Config *self)
{}

static const NMDBusInterfaceInfoExtended interface_info_dhcp4_config = {
    .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT(
        NM_DBUS_INTERFACE_DHCP4_CONFIG,
        .properties = NM_DEFINE_GDBUS_PROPERTY_INFOS(
            NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE("Options",
                                                           "a{sv}",
                                                           NM_DHCP_CONFIG_OPTIONS), ), ),
};

static void
nm_dhcp4_config_class_init(NMDhcp4ConfigClass *klass)
{
    NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS(klass);
    NMDhcpConfigClass *dhcp_config_class = NM_DHCP_CONFIG_CLASS(klass);

    dbus_object_class->export_path     = NM_DBUS_EXPORT_PATH_NUMBERED(NM_DBUS_PATH "/DHCP4Config");
    dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS(&interface_info_dhcp4_config);
    dbus_object_class->export_on_construction = TRUE;

    dhcp_config_class->addr_family = AF_INET;
}

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

struct _NMDhcp6Config {
    NMDhcpConfig parent;
};

struct _NMDhcp6ConfigClass {
    NMDhcpConfigClass parent;
};

G_DEFINE_TYPE(NMDhcp6Config, nm_dhcp6_config, NM_TYPE_DHCP_CONFIG)

static void
nm_dhcp6_config_init(NMDhcp6Config *self)
{}

static const NMDBusInterfaceInfoExtended interface_info_dhcp6_config = {
    .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT(
        NM_DBUS_INTERFACE_DHCP6_CONFIG,
        .properties = NM_DEFINE_GDBUS_PROPERTY_INFOS(
            NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE("Options",
                                                           "a{sv}",
                                                           NM_DHCP_CONFIG_OPTIONS), ), ),
};

static void
nm_dhcp6_config_class_init(NMDhcp6ConfigClass *klass)
{
    NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS(klass);
    NMDhcpConfigClass *dhcp_config_class = NM_DHCP_CONFIG_CLASS(klass);

    dbus_object_class->export_path     = NM_DBUS_EXPORT_PATH_NUMBERED(NM_DBUS_PATH "/DHCP6Config");
    dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS(&interface_info_dhcp6_config);
    dbus_object_class->export_on_construction = TRUE;

    dhcp_config_class->addr_family = AF_INET6;
}