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/* sha1.h

Copyright (c) 2005 Michael D. Leonhard

http://tamale.net/

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

*/

#ifndef SHA1_HEADER
typedef unsigned int Uint32;

class SHA1
{
	private:
		// fields
		Uint32 H0, H1, H2, H3, H4;
		unsigned char bytes[64];
		int unprocessedBytes;
		Uint32 size;
		void process();
	public:
		SHA1();
		~SHA1();
		void addBytes( const char* data, int num );
		unsigned char* getDigest();
		// utility methods
		static Uint32 lrot( Uint32 x, int bits );
		static void storeBigEndianUint32( unsigned char* byte, Uint32 num );
		static void hexPrinter( unsigned char* c, int l );
};

#define SHA1_HEADER
#endif
eceived a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #pragma once #include <cassert> #include "threading/thread.h" #include "connection.h" namespace con { class Connection; class ConnectionSendThread : public Thread { public: friend class UDPPeer; ConnectionSendThread(unsigned int max_packet_size, float timeout); void *run(); void Trigger(); void setParent(Connection *parent) { assert(parent != NULL); // Pre-condition m_connection = parent; } void setPeerTimeout(float peer_timeout) { m_timeout = peer_timeout; } private: void runTimeouts(float dtime); void rawSend(const BufferedPacket &packet); bool rawSendAsPacket(session_t peer_id, u8 channelnum, const SharedBuffer<u8> &data, bool reliable); void processReliableCommand(ConnectionCommand &c); void processNonReliableCommand(ConnectionCommand &c); void serve(Address bind_address); void connect(Address address); void disconnect(); void disconnect_peer(session_t peer_id); void send(session_t peer_id, u8 channelnum, const SharedBuffer<u8> &data); void sendReliable(ConnectionCommand &c); void sendToAll(u8 channelnum, const SharedBuffer<u8> &data); void sendToAllReliable(ConnectionCommand &c); void sendPackets(float dtime); void sendAsPacket(session_t peer_id, u8 channelnum, const SharedBuffer<u8> &data, bool ack = false); void sendAsPacketReliable(BufferedPacket &p, Channel *channel); bool packetsQueued(); Connection *m_connection = nullptr; unsigned int m_max_packet_size; float m_timeout; std::queue<OutgoingPacket> m_outgoing_queue; Semaphore m_send_sleep_semaphore; unsigned int m_iteration_packets_avaialble; unsigned int m_max_commands_per_iteration = 1; unsigned int m_max_data_packets_per_iteration; unsigned int m_max_packets_requeued = 256; }; class ConnectionReceiveThread : public Thread { public: ConnectionReceiveThread(unsigned int max_packet_size); void *run(); void setParent(Connection *parent) { assert(parent); // Pre-condition m_connection = parent; } private: void receive(SharedBuffer<u8> &packetdata, bool &packet_queued); // Returns next data from a buffer if possible // If found, returns true; if not, false. // If found, sets peer_id and dst bool getFromBuffers(session_t &peer_id, SharedBuffer<u8> &dst); bool checkIncomingBuffers( Channel *channel, session_t &peer_id, SharedBuffer<u8> &dst); /* Processes a packet with the basic header stripped out. Parameters: packetdata: Data in packet (with no base headers) peer_id: peer id of the sender of the packet in question channelnum: channel on which the packet was sent reliable: true if recursing into a reliable packet */ SharedBuffer<u8> processPacket(Channel *channel, const SharedBuffer<u8> &packetdata, session_t peer_id, u8 channelnum, bool reliable); SharedBuffer<u8> handlePacketType_Control(Channel *channel, const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum, bool reliable); SharedBuffer<u8> handlePacketType_Original(Channel *channel, const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum, bool reliable); SharedBuffer<u8> handlePacketType_Split(Channel *channel, const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum, bool reliable); SharedBuffer<u8> handlePacketType_Reliable(Channel *channel, const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum, bool reliable); struct PacketTypeHandler { SharedBuffer<u8> (ConnectionReceiveThread::*handler)(Channel *channel, const SharedBuffer<u8> &packet, Peer *peer, u8 channelnum, bool reliable); }; static const PacketTypeHandler packetTypeRouter[PACKET_TYPE_MAX]; Connection *m_connection = nullptr; }; }