/*
* Slitheen - a decoy routing system for censorship resistance
* Copyright (C) 2017 Cecylia Bocovich (cbocovic@uwaterloo.ca)
*
* This program 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, version 3.
*
* This program 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 this program. If not, see .
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining
* it with the OpenSSL library (or a modified version of that library),
* containing parts covered by the terms of [name of library's license],
* the licensors of this Program grant you additional permission to convey
* the resulting work. {Corresponding Source for a non-source form of such
* a combination shall include the source code for the parts of the OpenSSL
* library used as well as that of the covered work.}
*/
#ifndef _SOCKS5PROXY_H_
#define _SOCKS5PROXY_H_
#include
#define SLITHEEN_ID_LEN 28
#define SLITHEEN_SUPER_SECRET_SIZE 16
#define SLITHEEN_SUPER_CONST "SLITHEEN_SUPER_ENCRYPT"
#define SLITHEEN_SUPER_CONST_SIZE 22
void *demultiplex_data();
void *multiplex_data();
void *ous_IO();
int remove_connection(uint16_t stream_id);
struct __attribute__ ((__packed__)) slitheen_hdr {
uint64_t counter;
uint16_t stream_id;
uint16_t len;
uint16_t garbage;
uint16_t zeros;
};
#define SLITHEEN_HEADER_LEN 16
struct __attribute__ ((__packed__)) slitheen_up_hdr{
uint16_t stream_id;
uint16_t len;
};
#define NEW_STREAM 0
#define NEGOTIATED 1
#define CONNECTED 2
typedef struct connection_st{
uint16_t stream_id;
int32_t socket;
uint8_t state;
struct connection_st *next;
} connection;
typedef struct connection_table_st{
connection *first;
} connection_table;
typedef struct data_block_st {
uint64_t count;
uint8_t *data;
uint16_t len;
int32_t socket;
struct data_block_st *next;
} data_block;
struct socks_method_req {
uint8_t version;
uint8_t num_methods;
};
struct socks_req {
uint8_t version;
uint8_t cmd;
uint8_t rsvd;
uint8_t addr_type;
};
#endif /* _SOCKS5PROXY_H_ */