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- /*
- * 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 <http://www.gnu.org/licenses/>.
- *
- * 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 <stdint.h>
- #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_ */
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