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/*
* Copyright (C) 2014 Jens Georg.
*
* Author: Jens Georg <mail@jensge.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#include <netinet/ip.h>
#include "gssdp-pktinfo-message.h"
G_DEFINE_TYPE (GSSDPPktinfoMessage,
gssdp_pktinfo_message,
G_TYPE_SOCKET_CONTROL_MESSAGE)
struct _GSSDPPktinfoMessagePrivate
{
GInetAddress *pkt_addr;
GInetAddress *iface_addr;
gint index;
};
enum {
PROP_0,
PROP_PKT_ADDR,
PROP_IFACE_ADDR,
PROP_INDEX
};
static gsize
gssdp_pktinfo_message_get_size (GSocketControlMessage *msg)
{
return sizeof (struct in_pktinfo);
}
static int
gssdp_pktinfo_message_get_level (GSocketControlMessage *msg)
{
return IPPROTO_IP;
}
static int
gssdp_pktinfo_message_get_msg_type (GSocketControlMessage *msg)
{
return IP_PKTINFO;
}
static void
gssdp_pktinfo_message_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GSSDPPktinfoMessage *self;
self = GSSDP_PKTINFO_MESSAGE (object);
switch (property_id)
{
case PROP_IFACE_ADDR:
g_value_set_object (value, self->priv->iface_addr);
break;
case PROP_INDEX:
g_value_set_uint (value, self->priv->index);
break;
case PROP_PKT_ADDR:
g_value_set_object (value, self->priv->pkt_addr);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gssdp_pktinfo_message_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GSSDPPktinfoMessage *self;
self = GSSDP_PKTINFO_MESSAGE (object);
switch (property_id)
{
case PROP_IFACE_ADDR:
self->priv->iface_addr = g_value_get_object (value);
break;
case PROP_INDEX:
self->priv->index = g_value_get_int (value);
break;
case PROP_PKT_ADDR:
self->priv->pkt_addr = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gssdp_pktinfo_dispose (GObject *object)
{
GSSDPPktinfoMessage *self = GSSDP_PKTINFO_MESSAGE (object);
g_clear_object (&self->priv->iface_addr);
g_clear_object (&self->priv->pkt_addr);
}
static GSocketControlMessage *
gssdp_pktinfo_message_deserialize (int level,
int type,
gsize size,
gpointer data)
{
GSocketControlMessage *message;
GInetAddress *addr, *dst;
struct in_pktinfo *info = (struct in_pktinfo *) data;
const guint8 *bytes;
if (level != IPPROTO_IP || type != IP_PKTINFO)
return NULL;
bytes = (const guint8 *)&(info->ipi_addr.s_addr);
addr = g_inet_address_new_from_bytes(bytes, G_SOCKET_FAMILY_IPV4);
bytes = (const guint8 *)&(info->ipi_spec_dst.s_addr);
dst = g_inet_address_new_from_bytes (bytes, G_SOCKET_FAMILY_IPV4);
message = gssdp_pktinfo_message_new (addr, dst, info->ipi_ifindex);
return message;
}
static void
gssdp_pktinfo_message_init (GSSDPPktinfoMessage *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
GSSDP_TYPE_PKTINFO_MESSAGE,
GSSDPPktinfoMessagePrivate);
}
static void
gssdp_pktinfo_message_class_init (GSSDPPktinfoMessageClass *klass)
{
GSocketControlMessageClass *scm_class =
G_SOCKET_CONTROL_MESSAGE_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GSSDPPktinfoMessagePrivate));
scm_class->get_size = gssdp_pktinfo_message_get_size;
scm_class->get_level = gssdp_pktinfo_message_get_level;
scm_class->get_type = gssdp_pktinfo_message_get_msg_type;
scm_class->deserialize = gssdp_pktinfo_message_deserialize;
object_class->get_property = gssdp_pktinfo_message_get_property;
object_class->set_property = gssdp_pktinfo_message_set_property;
object_class->dispose = gssdp_pktinfo_dispose;
g_object_class_install_property
(object_class,
PROP_IFACE_ADDR,
g_param_spec_object ("iface-address",
"iface-address",
"IP v4 Address of the interface this packet was received on",
G_TYPE_INET_ADDRESS,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(object_class,
PROP_INDEX,
g_param_spec_uint ("index",
"index",
"Network interface index",
0,
G_MAXUINT,
0,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(object_class,
PROP_IFACE_ADDR,
g_param_spec_object ("pkt-address",
"pkt-address",
"IP v4 destination Address of the packet",
G_TYPE_INET_ADDRESS,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
}
GSocketControlMessage *
gssdp_pktinfo_message_new (GInetAddress *addr, GInetAddress *dst, gint ifindex)
{
GSSDPPktinfoMessage *msg;
msg = GSSDP_PKTINFO_MESSAGE (
g_object_new (GSSDP_TYPE_PKTINFO_MESSAGE,
"iface-address", dst,
"index", ifindex,
"pkt-address", addr,
NULL));
return G_SOCKET_CONTROL_MESSAGE (msg);
}
gint
gssdp_pktinfo_message_get_ifindex (GSSDPPktinfoMessage *message)
{
g_return_val_if_fail (GSSDP_IS_PKTINFO_MESSAGE (message), -1);
return message->priv->index;
}
GInetAddress *
gssdp_pktinfo_message_get_local_addr (GSSDPPktinfoMessage *message)
{
return message->priv->iface_addr;
}
GInetAddress *
gssdp_pktinfo_message_get_pkt_addr (GSSDPPktinfoMessage *message)
{
return message->priv->pkt_addr;
}
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