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/*
This file is part of GNUnet
(C) 2010, 2011, 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 2, or (at your
option) any later version.
GNUnet 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file include/gnunet_dns_service.h
* @brief API to access the DNS service. Not finished at all,
* currently only contains the structs for the IPC, which
* don't even belong here (legacy code in transition)
* @author Philipp Toelke
*/
#ifndef GNUNET_DNS_SERVICE_H
#define GNUNET_DNS_SERVICE_H
#include "gnunet_common.h"
GNUNET_NETWORK_STRUCT_BEGIN
struct query_packet
{
struct GNUNET_MessageHeader hdr;
/**
* The IP-Address this query was originally sent to
*/
char orig_to[16];
/**
* The IP-Address this query was originally sent from
*/
char orig_from[16];
/**
* The UDP-Portthis query was originally sent from
*/
char addrlen;
uint16_t src_port GNUNET_PACKED;
unsigned char data[1]; /* The DNS-Packet */
};
struct query_packet_list
{
struct query_packet_list *next GNUNET_PACKED;
struct query_packet_list *prev GNUNET_PACKED;
struct query_packet pkt;
};
enum GNUNET_DNS_ANSWER_Subtype
{
/**
* Answers of this type contain a dns-packet that just has to be transmitted
*/
GNUNET_DNS_ANSWER_TYPE_IP,
/**
* Answers of this type contain an incomplete dns-packet. The IP-Address
* is all 0s. The addroffset points to it.
*/
GNUNET_DNS_ANSWER_TYPE_SERVICE,
/**
* Answers of this type contain an incomplete dns-packet as answer to a
* PTR-Query. The resolved name is not allocated. The addroffset points to it.
*/
GNUNET_DNS_ANSWER_TYPE_REV,
/**
* Answers of this type contains an IP6-Address but traffic to this IP should
* be routed through the GNUNet.
*/
GNUNET_DNS_ANSWER_TYPE_REMOTE_AAAA,
/**
* Answers of this type contains an IP4-Address but traffic to this IP should
* be routed through the GNUNet.
*/
GNUNET_DNS_ANSWER_TYPE_REMOTE_A
};
struct GNUNET_vpn_service_descriptor
{
GNUNET_HashCode peer GNUNET_PACKED;
GNUNET_HashCode service_descriptor GNUNET_PACKED;
uint64_t ports GNUNET_PACKED;
uint32_t service_type GNUNET_PACKED;
};
struct answer_packet
{
/* General data */
struct GNUNET_MessageHeader hdr;
enum GNUNET_DNS_ANSWER_Subtype subtype GNUNET_PACKED;
char from[16];
char to[16];
char addrlen;
unsigned dst_port:16 GNUNET_PACKED;
/* -- */
/* Data for GNUNET_DNS_ANSWER_TYPE_SERVICE */
struct GNUNET_vpn_service_descriptor service_descr;
/* -- */
/* Data for GNUNET_DNS_ANSWER_TYPE_REV */
/* The offsett in octets from the beginning of the struct to the field
* in data where the IP-Address has to go. */
uint16_t addroffset GNUNET_PACKED;
/* -- */
/* Data for GNUNET_DNS_ANSWER_TYPE_REMOTE */
/* either 4 or 16 */
char addrsize;
unsigned char addr[16];
/* -- */
unsigned char data[1];
};
struct answer_packet_list
{
struct answer_packet_list *next GNUNET_PACKED;
struct answer_packet_list *prev GNUNET_PACKED;
struct GNUNET_SERVER_Client *client;
struct answer_packet pkt;
};
GNUNET_NETWORK_STRUCT_END
#endif
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