113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
/*
|
|
|
|
Copyright (c) 2007-2016, Arvid Norberg
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in
|
|
the documentation and/or other materials provided with the distribution.
|
|
* Neither the name of the author nor the names of its
|
|
contributors may be used to endorse or promote products derived
|
|
from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
#ifndef TORRENT_KADEMLIA_MSG_HPP
|
|
#define TORRENT_KADEMLIA_MSG_HPP
|
|
|
|
#include <string>
|
|
#include "libtorrent/socket.hpp"
|
|
#include "libtorrent/kademlia/node_id.hpp"
|
|
|
|
namespace libtorrent {
|
|
|
|
struct bdecode_node;
|
|
class entry;
|
|
|
|
namespace dht {
|
|
|
|
typedef std::vector<char> packet_t;
|
|
typedef std::vector<node_entry> nodes_t;
|
|
typedef std::vector<tcp::endpoint> peers_t;
|
|
|
|
struct msg
|
|
{
|
|
msg(bdecode_node const& m, udp::endpoint const& ep): message(m), addr(ep) {}
|
|
// the message
|
|
bdecode_node const& message;
|
|
|
|
// the address of the process sending or receiving
|
|
// the message.
|
|
udp::endpoint addr;
|
|
private:
|
|
// explicitly disallow assignment, to silence msvc warning
|
|
msg& operator=(msg const&);
|
|
};
|
|
|
|
struct key_desc_t
|
|
{
|
|
char const* name;
|
|
int type;
|
|
int size;
|
|
int flags;
|
|
|
|
enum {
|
|
// this argument is optional, parsing will not
|
|
// fail if it's not present
|
|
optional = 1,
|
|
// for dictionaries, the following entries refer
|
|
// to child nodes to this node, up until and including
|
|
// the next item that has the last_child flag set.
|
|
// these flags are nestable
|
|
parse_children = 2,
|
|
// this is the last item in a child dictionary
|
|
last_child = 4,
|
|
// the size argument refers to that the size
|
|
// has to be divisible by the number, instead
|
|
// of having that exact size
|
|
size_divisible = 8
|
|
};
|
|
};
|
|
|
|
// generate an error response message
|
|
void incoming_error(entry& e, char const* msg, int error_code = 203);
|
|
|
|
// given a redundant name to avoid clashing with libtorrent::detail
|
|
namespace dht_detail {
|
|
|
|
TORRENT_EXPORT bool verify_message(bdecode_node const& msg, key_desc_t const desc[]
|
|
, bdecode_node ret[], int size, char* error, int error_size);
|
|
|
|
}
|
|
|
|
// verifies that a message has all the required
|
|
// entries and returns them in ret
|
|
template <int Size>
|
|
bool verify_message(bdecode_node const& msg, key_desc_t const (&desc)[Size]
|
|
, bdecode_node (&ret)[Size], char* error, int error_size)
|
|
{
|
|
return dht_detail::verify_message(msg, desc, ret, Size, error, error_size);
|
|
}
|
|
|
|
} }
|
|
|
|
#endif
|