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Diffstat (limited to 'libs/libtox/src/toxcore/onion.h')
| -rw-r--r-- | libs/libtox/src/toxcore/onion.h | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/libs/libtox/src/toxcore/onion.h b/libs/libtox/src/toxcore/onion.h deleted file mode 100644 index e81b3a52ae..0000000000 --- a/libs/libtox/src/toxcore/onion.h +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Implementation of the onion part of docs/Prevent_Tracking.txt - */ - -/* - * Copyright © 2016-2017 The TokTok team. - * Copyright © 2013 Tox project. - * - * This file is part of Tox, the free peer to peer instant messenger. - * - * Tox 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 3 of the License, or - * (at your option) any later version. - * - * Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>. - */ -#ifndef ONION_H -#define ONION_H - -#include "DHT.h" - -typedef struct { - DHT *dht; - Networking_Core *net; - uint8_t secret_symmetric_key[CRYPTO_SYMMETRIC_KEY_SIZE]; - uint64_t timestamp; - - Shared_Keys shared_keys_1; - Shared_Keys shared_keys_2; - Shared_Keys shared_keys_3; - - int (*recv_1_function)(void *, IP_Port, const uint8_t *, uint16_t); - void *callback_object; -} Onion; - -#define ONION_MAX_PACKET_SIZE 1400 - -#define ONION_RETURN_1 (CRYPTO_NONCE_SIZE + SIZE_IPPORT + CRYPTO_MAC_SIZE) -#define ONION_RETURN_2 (CRYPTO_NONCE_SIZE + SIZE_IPPORT + CRYPTO_MAC_SIZE + ONION_RETURN_1) -#define ONION_RETURN_3 (CRYPTO_NONCE_SIZE + SIZE_IPPORT + CRYPTO_MAC_SIZE + ONION_RETURN_2) - -#define ONION_SEND_BASE (CRYPTO_PUBLIC_KEY_SIZE + SIZE_IPPORT + CRYPTO_MAC_SIZE) -#define ONION_SEND_3 (CRYPTO_NONCE_SIZE + ONION_SEND_BASE + ONION_RETURN_2) -#define ONION_SEND_2 (CRYPTO_NONCE_SIZE + ONION_SEND_BASE*2 + ONION_RETURN_1) -#define ONION_SEND_1 (CRYPTO_NONCE_SIZE + ONION_SEND_BASE*3) - -#define ONION_MAX_DATA_SIZE (ONION_MAX_PACKET_SIZE - (ONION_SEND_1 + 1)) -#define ONION_RESPONSE_MAX_DATA_SIZE (ONION_MAX_PACKET_SIZE - (1 + ONION_RETURN_3)) - -#define ONION_PATH_LENGTH 3 - -typedef struct { - uint8_t shared_key1[CRYPTO_SHARED_KEY_SIZE]; - uint8_t shared_key2[CRYPTO_SHARED_KEY_SIZE]; - uint8_t shared_key3[CRYPTO_SHARED_KEY_SIZE]; - - uint8_t public_key1[CRYPTO_PUBLIC_KEY_SIZE]; - uint8_t public_key2[CRYPTO_PUBLIC_KEY_SIZE]; - uint8_t public_key3[CRYPTO_PUBLIC_KEY_SIZE]; - - IP_Port ip_port1; - uint8_t node_public_key1[CRYPTO_PUBLIC_KEY_SIZE]; - - IP_Port ip_port2; - uint8_t node_public_key2[CRYPTO_PUBLIC_KEY_SIZE]; - - IP_Port ip_port3; - uint8_t node_public_key3[CRYPTO_PUBLIC_KEY_SIZE]; - - uint32_t path_num; -} Onion_Path; - -/* Create a new onion path. - * - * Create a new onion path out of nodes (nodes is a list of ONION_PATH_LENGTH nodes) - * - * new_path must be an empty memory location of atleast Onion_Path size. - * - * return -1 on failure. - * return 0 on success. - */ -int create_onion_path(const DHT *dht, Onion_Path *new_path, const Node_format *nodes); - -/* Dump nodes in onion path to nodes of length num_nodes; - * - * return -1 on failure. - * return 0 on success. - */ -int onion_path_to_nodes(Node_format *nodes, unsigned int num_nodes, const Onion_Path *path); - -/* Create a onion packet. - * - * Use Onion_Path path to create packet for data of length to dest. - * Maximum length of data is ONION_MAX_DATA_SIZE. - * packet should be at least ONION_MAX_PACKET_SIZE big. - * - * return -1 on failure. - * return length of created packet on success. - */ -int create_onion_packet(uint8_t *packet, uint16_t max_packet_length, const Onion_Path *path, IP_Port dest, - const uint8_t *data, uint16_t length); - - -/* Create a onion packet to be sent over tcp. - * - * Use Onion_Path path to create packet for data of length to dest. - * Maximum length of data is ONION_MAX_DATA_SIZE. - * packet should be at least ONION_MAX_PACKET_SIZE big. - * - * return -1 on failure. - * return length of created packet on success. - */ -int create_onion_packet_tcp(uint8_t *packet, uint16_t max_packet_length, const Onion_Path *path, IP_Port dest, - const uint8_t *data, uint16_t length); - -/* Create and send a onion packet. - * - * Use Onion_Path path to send data of length to dest. - * Maximum length of data is ONION_MAX_DATA_SIZE. - * - * return -1 on failure. - * return 0 on success. - */ -int send_onion_packet(Networking_Core *net, const Onion_Path *path, IP_Port dest, const uint8_t *data, uint16_t length); - -/* Create and send a onion response sent initially to dest with. - * Maximum length of data is ONION_RESPONSE_MAX_DATA_SIZE. - * - * return -1 on failure. - * return 0 on success. - */ -int send_onion_response(Networking_Core *net, IP_Port dest, const uint8_t *data, uint16_t length, const uint8_t *ret); - -/* Function to handle/send received decrypted versions of the packet sent with send_onion_packet. - * - * return 0 on success. - * return 1 on failure. - * - * Used to handle these packets that are received in a non traditional way (by TCP for example). - * - * Source family must be set to something else than TOX_AF_INET6 or TOX_AF_INET so that the callback gets called - * when the response is received. - */ -int onion_send_1(const Onion *onion, const uint8_t *plain, uint16_t len, IP_Port source, const uint8_t *nonce); - -/* Set the callback to be called when the dest ip_port doesn't have TOX_AF_INET6 or TOX_AF_INET as the family. - * - * Format: function(void *object, IP_Port dest, uint8_t *data, uint16_t length) - */ -void set_callback_handle_recv_1(Onion *onion, int (*function)(void *, IP_Port, const uint8_t *, uint16_t), - void *object); - -Onion *new_onion(DHT *dht); - -void kill_onion(Onion *onion); - - -#endif |