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Diffstat (limited to 'libnm/nm-device-ip-tunnel.c')
| -rw-r--r-- | libnm/nm-device-ip-tunnel.c | 544 |
1 files changed, 544 insertions, 0 deletions
diff --git a/libnm/nm-device-ip-tunnel.c b/libnm/nm-device-ip-tunnel.c new file mode 100644 index 00000000..b43b0412 --- /dev/null +++ b/libnm/nm-device-ip-tunnel.c @@ -0,0 +1,544 @@ +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ +/* + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA. + * + * Copyright 2015 Red Hat, Inc. + */ + +#include "config.h" + +#include <string.h> + +#include <nm-setting-connection.h> +#include <nm-setting-ip-tunnel.h> +#include <nm-utils.h> + +#include "nm-default.h" +#include "nm-device-ip-tunnel.h" +#include "nm-device-private.h" +#include "nm-object-private.h" +#include "nm-core-internal.h" + +G_DEFINE_TYPE (NMDeviceIPTunnel, nm_device_ip_tunnel, NM_TYPE_DEVICE) + +#define NM_DEVICE_IP_TUNNEL_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_IP_TUNNEL, NMDeviceIPTunnelPrivate)) + +typedef struct { + NMIPTunnelMode mode; + NMDevice *parent; + char *local; + char *remote; + guint8 ttl; + guint8 tos; + gboolean path_mtu_discovery; + char *input_key; + char *output_key; + guint8 encap_limit; + guint32 flow_label; +} NMDeviceIPTunnelPrivate; + +enum { + PROP_0, + PROP_MODE, + PROP_PARENT, + PROP_LOCAL, + PROP_REMOTE, + PROP_TTL, + PROP_TOS, + PROP_PATH_MTU_DISCOVERY, + PROP_INPUT_KEY, + PROP_OUTPUT_KEY, + PROP_ENCAPSULATION_LIMIT, + PROP_FLOW_LABEL, + + LAST_PROP +}; + +/** + * nm_device_ip_tunnel_get_mode: + * @device: a #NMDeviceIPTunnel + * + * Returns: the tunneling mode + * + * Since: 1.2 + **/ +NMIPTunnelMode +nm_device_ip_tunnel_get_mode (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), 0); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->mode; +} + +/** + * nm_device_ip_tunnel_get_parent: + * @device: a #NMDeviceIPTunnel + * + * Returns: (transfer none): the device's parent device + * + * Since: 1.2 + **/ +NMDevice * +nm_device_ip_tunnel_get_parent (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), NULL); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->parent; +} + +/** + * nm_device_ip_tunnel_get_local: + * @device: a #NMDeviceIPTunnel + * + * Returns: the local endpoint of the tunnel + * + * Since: 1.2 + **/ +const char * +nm_device_ip_tunnel_get_local (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), NULL); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->local; +} + +/** + * nm_device_ip_tunnel_get_remote: + * @device: a #NMDeviceIPTunnel + * + * Returns: the remote endpoint of the tunnel + * + * Since: 1.2 + **/ +const char * +nm_device_ip_tunnel_get_remote (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), NULL); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->remote; +} + +/** + * nm_device_ip_tunnel_get_ttl: + * @device: a #NMDeviceIPTunnel + * + * Returns: the TTL assigned to tunneled packets + * + * Since: 1.2 + **/ +guint8 +nm_device_ip_tunnel_get_ttl (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), 0); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->ttl; +} + +/** + * nm_device_ip_tunnel_get_tos: + * @device: a #NMDeviceIPTunnel + * + * Returns: type of service (IPv4) or traffic class (IPv6) assigned + * to tunneled packets. + * + * Since: 1.2 + **/ +guint8 +nm_device_ip_tunnel_get_tos (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), 0); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->tos; +} + +/** + * nm_device_ip_tunnel_get_path_mtu_discovery: + * @device: a #NMDeviceIPTunnel + * + * Returns: whether path MTU discovery is enabled + * + * Since: 1.2 + **/ +gboolean +nm_device_ip_tunnel_get_path_mtu_discovery (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), TRUE); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->path_mtu_discovery; +} + +/** + * nm_device_ip_tunnel_get_input_key: + * @device: a #NMDeviceIPTunnel + * + * Returns: the key used for incoming packets + * + * Since: 1.2 + **/ +const char * +nm_device_ip_tunnel_get_input_key (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), NULL); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->input_key; +} + +/** + * nm_device_ip_tunnel_get_output_key: + * @device: a #NMDeviceIPTunnel + * + * Returns: the key used for outgoing packets + * + * Since: 1.2 + **/ +const char * +nm_device_ip_tunnel_get_output_key (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), NULL); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->output_key; +} + +/** + * nm_device_ip_tunnel_get_encapsulation_limit: + * @device: a #NMDeviceIPTunnel + * + * Returns: the maximum permitted encapsulation level + * + * Since: 1.2 + **/ +guint8 +nm_device_ip_tunnel_get_encapsulation_limit (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), 0); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->encap_limit; +} + +/** + * nm_device_ip_tunnel_get_flow_label: + * @device: a #NMDeviceIPTunnel + * + * Returns: the flow label assigned to tunnel packets + * + * Since: 1.2 + **/ +guint +nm_device_ip_tunnel_get_flow_label (NMDeviceIPTunnel *device) +{ + g_return_val_if_fail (NM_IS_DEVICE_IP_TUNNEL (device), 0); + + return NM_DEVICE_IP_TUNNEL_GET_PRIVATE (device)->flow_label; +} + +static gboolean +connection_compatible (NMDevice *device, NMConnection *connection, GError **error) +{ + if (!NM_DEVICE_CLASS (nm_device_ip_tunnel_parent_class)->connection_compatible (device, connection, error)) + return FALSE; + + if (!nm_connection_is_type (connection, NM_SETTING_IP_TUNNEL_SETTING_NAME)) { + g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION, + _("The connection was not an IP tunnel connection.")); + return FALSE; + } + + return TRUE; +} + +static GType +get_setting_type (NMDevice *device) +{ + return NM_TYPE_SETTING_IP_TUNNEL; +} + +/***********************************************************/ + +static void +nm_device_ip_tunnel_init (NMDeviceIPTunnel *device) +{ + _nm_device_set_device_type (NM_DEVICE (device), NM_DEVICE_TYPE_IP_TUNNEL); +} + +static void +init_dbus (NMObject *object) +{ + NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE (object); + const NMPropertiesInfo property_info[] = { + { NM_DEVICE_IP_TUNNEL_PARENT, &priv->parent, NULL, NM_TYPE_DEVICE }, + { NM_DEVICE_IP_TUNNEL_MODE, &priv->mode }, + { NM_DEVICE_IP_TUNNEL_LOCAL, &priv->local }, + { NM_DEVICE_IP_TUNNEL_REMOTE, &priv->remote }, + { NM_DEVICE_IP_TUNNEL_TTL, &priv->ttl }, + { NM_DEVICE_IP_TUNNEL_TOS, &priv->tos }, + { NM_DEVICE_IP_TUNNEL_PATH_MTU_DISCOVERY, &priv->path_mtu_discovery }, + { NM_DEVICE_IP_TUNNEL_INPUT_KEY, &priv->input_key }, + { NM_DEVICE_IP_TUNNEL_OUTPUT_KEY, &priv->output_key }, + { NM_DEVICE_IP_TUNNEL_ENCAPSULATION_LIMIT, &priv->encap_limit }, + { NM_DEVICE_IP_TUNNEL_FLOW_LABEL, &priv->flow_label }, + { NULL }, + }; + + NM_OBJECT_CLASS (nm_device_ip_tunnel_parent_class)->init_dbus (object); + + _nm_object_register_properties (object, + NM_DBUS_INTERFACE_DEVICE_IP_TUNNEL, + property_info); +} + +static void +finalize (GObject *object) +{ + NMDeviceIPTunnelPrivate *priv = NM_DEVICE_IP_TUNNEL_GET_PRIVATE (object); + + g_free (priv->local); + g_free (priv->remote); + g_free (priv->input_key); + g_free (priv->output_key); + g_clear_object (&priv->parent); + + G_OBJECT_CLASS (nm_device_ip_tunnel_parent_class)->finalize (object); +} + +static void +get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec) +{ + NMDeviceIPTunnel *device = NM_DEVICE_IP_TUNNEL (object); + + switch (prop_id) { + case PROP_PARENT: + g_value_set_object (value, nm_device_ip_tunnel_get_parent (device)); + break; + case PROP_MODE: + g_value_set_uint (value, nm_device_ip_tunnel_get_mode (device)); + break; + case PROP_LOCAL: + g_value_set_string (value, nm_device_ip_tunnel_get_local (device)); + break; + case PROP_REMOTE: + g_value_set_string (value, nm_device_ip_tunnel_get_remote (device)); + break; + case PROP_TTL: + g_value_set_uint (value, nm_device_ip_tunnel_get_ttl (device)); + break; + case PROP_TOS: + g_value_set_uint (value, nm_device_ip_tunnel_get_tos (device)); + break; + case PROP_PATH_MTU_DISCOVERY: + g_value_set_boolean (value, nm_device_ip_tunnel_get_path_mtu_discovery (device)); + break; + case PROP_INPUT_KEY: + g_value_set_string (value, nm_device_ip_tunnel_get_input_key (device)); + break; + case PROP_OUTPUT_KEY: + g_value_set_string (value, nm_device_ip_tunnel_get_output_key (device)); + break; + case PROP_ENCAPSULATION_LIMIT: + g_value_set_uint (value, nm_device_ip_tunnel_get_encapsulation_limit (device)); + break; + case PROP_FLOW_LABEL: + g_value_set_uint (value, nm_device_ip_tunnel_get_flow_label (device)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +nm_device_ip_tunnel_class_init (NMDeviceIPTunnelClass *bond_class) +{ + GObjectClass *object_class = G_OBJECT_CLASS (bond_class); + NMObjectClass *nm_object_class = NM_OBJECT_CLASS (bond_class); + NMDeviceClass *device_class = NM_DEVICE_CLASS (bond_class); + + g_type_class_add_private (bond_class, sizeof (NMDeviceIPTunnelPrivate)); + + _nm_object_class_add_interface (nm_object_class, NM_DBUS_INTERFACE_DEVICE_IP_TUNNEL); + + /* virtual methods */ + object_class->finalize = finalize; + object_class->get_property = get_property; + + nm_object_class->init_dbus = init_dbus; + + device_class->connection_compatible = connection_compatible; + device_class->get_setting_type = get_setting_type; + + /* properties */ + + /** + * NMDeviceIPTunnel:mode: + * + * The tunneling mode of the device. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_MODE, + g_param_spec_uint (NM_DEVICE_IP_TUNNEL_MODE, "", "", + 0, G_MAXUINT, 0, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:parent: + * + * The devices's parent device. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_PARENT, + g_param_spec_object (NM_DEVICE_IP_TUNNEL_PARENT, "", "", + NM_TYPE_DEVICE, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:local: + * + * The local endpoint of the tunnel. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_LOCAL, + g_param_spec_string (NM_DEVICE_IP_TUNNEL_LOCAL, "", "", + NULL, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:remote: + * + * The remote endpoint of the tunnel. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_REMOTE, + g_param_spec_string (NM_DEVICE_IP_TUNNEL_REMOTE, "", "", + NULL, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:ttl: + * + * The TTL assigned to tunneled packets. 0 is a special value + * meaning that packets inherit the TTL value + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_TTL, + g_param_spec_uchar (NM_DEVICE_IP_TUNNEL_TTL, "", "", + 0, 255, 0, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:tos: + * + * The type of service (IPv4) or traffic class (IPv6) assigned to + * tunneled packets. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_TOS, + g_param_spec_uchar (NM_DEVICE_IP_TUNNEL_TOS, "", "", + 0, 255, 0, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:path-mtu-discovery: + * + * Whether path MTU discovery is enabled on this tunnel. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_PATH_MTU_DISCOVERY, + g_param_spec_boolean (NM_DEVICE_IP_TUNNEL_PATH_MTU_DISCOVERY, "", "", + FALSE, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:input-key: + * + * The key used for tunneled input packets, if applicable. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_INPUT_KEY, + g_param_spec_string (NM_DEVICE_IP_TUNNEL_INPUT_KEY, "", "", + NULL, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:output-key: + * + * The key used for tunneled output packets, if applicable. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_OUTPUT_KEY, + g_param_spec_string (NM_DEVICE_IP_TUNNEL_OUTPUT_KEY, "", "", + NULL, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:encapsulation-limit: + * + * How many additional levels of encapsulation are permitted to + * be prepended to packets. This property applies only to IPv6 + * tunnels. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_ENCAPSULATION_LIMIT, + g_param_spec_uchar (NM_DEVICE_IP_TUNNEL_ENCAPSULATION_LIMIT, "", "", + 0, 255, 0, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); + + /** + * NMDeviceIPTunnel:flow-label: + * + * The flow label to assign to tunnel packets. This property + * applies only to IPv6 tunnels. + * + * Since: 1.2 + **/ + g_object_class_install_property + (object_class, PROP_FLOW_LABEL, + g_param_spec_uint (NM_DEVICE_IP_TUNNEL_FLOW_LABEL, "", "", + 0, (1 << 20) - 1, 0, + G_PARAM_READABLE | + G_PARAM_STATIC_STRINGS)); +} |