forked from Green-Sky/tomato
596ea37298
e58eb27a8 fix(toxav): remove extra copy of video frame on encode Tested and works, but there might be alignment issues and other stuff. 206ea3530 refactor: Explicitly pass dependencies to constructors. 7cefa93cf fix(toxencryptsave): Wipe salt and passkey after usage. 7c3be2342 refactor: Add file/line to tox-bootstrapd logging. f84e8cdce refactor: Move loglogdata out of network.c. 390f7db06 refactor: Move random and memory OS-specifics to `os_*` files. REVERT: 640e6cace fix(toxav): remove extra copy of video frame on encode Tested and works, but there might be alignment issues and other stuff. git-subtree-dir: external/toxcore/c-toxcore git-subtree-split: e58eb27a84f9fa0cd996868e079f39e90a5c04b6
132 lines
6.9 KiB
C
132 lines
6.9 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2016-2025 The TokTok team.
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* Copyright © 2013 Tox project.
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*/
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/**
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* Implementation of the announce part of docs/Prevent_Tracking.txt
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*/
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#ifndef C_TOXCORE_TOXCORE_ONION_ANNOUNCE_H
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#define C_TOXCORE_TOXCORE_ONION_ANNOUNCE_H
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#include "DHT.h"
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#include "attributes.h"
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#include "crypto_core.h"
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#include "logger.h"
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#include "mem.h"
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#include "mono_time.h"
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#include "network.h"
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#include "onion.h"
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#include "timed_auth.h"
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#define ONION_ANNOUNCE_MAX_ENTRIES 160
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#define ONION_ANNOUNCE_TIMEOUT 300
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#define ONION_PING_ID_SIZE TIMED_AUTH_SIZE
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#define ONION_MAX_EXTRA_DATA_SIZE 136
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#define ONION_ANNOUNCE_SENDBACK_DATA_LENGTH (sizeof(uint64_t))
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#define MAX_SENT_GC_NODES 1
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#define ONION_ANNOUNCE_REQUEST_MIN_SIZE (1 + CRYPTO_NONCE_SIZE + CRYPTO_PUBLIC_KEY_SIZE + ONION_PING_ID_SIZE + CRYPTO_PUBLIC_KEY_SIZE + CRYPTO_PUBLIC_KEY_SIZE + ONION_ANNOUNCE_SENDBACK_DATA_LENGTH + CRYPTO_MAC_SIZE)
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#define ONION_ANNOUNCE_REQUEST_MAX_SIZE (ONION_ANNOUNCE_REQUEST_MIN_SIZE + ONION_MAX_EXTRA_DATA_SIZE)
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#define ONION_ANNOUNCE_RESPONSE_MIN_SIZE (2 + ONION_ANNOUNCE_SENDBACK_DATA_LENGTH + CRYPTO_NONCE_SIZE + ONION_PING_ID_SIZE + CRYPTO_MAC_SIZE)
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#define ONION_ANNOUNCE_RESPONSE_MAX_SIZE (ONION_ANNOUNCE_RESPONSE_MIN_SIZE + ONION_MAX_EXTRA_DATA_SIZE * MAX_SENT_NODES)
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/* TODO: DEPRECATE */
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#define ONION_ANNOUNCE_REQUEST_SIZE (1 + CRYPTO_NONCE_SIZE + CRYPTO_PUBLIC_KEY_SIZE + ONION_PING_ID_SIZE + CRYPTO_PUBLIC_KEY_SIZE + CRYPTO_PUBLIC_KEY_SIZE + ONION_ANNOUNCE_SENDBACK_DATA_LENGTH + CRYPTO_MAC_SIZE)
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#define ONION_DATA_RESPONSE_MIN_SIZE (1 + CRYPTO_NONCE_SIZE + CRYPTO_PUBLIC_KEY_SIZE + CRYPTO_MAC_SIZE)
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#define ONION_DATA_REQUEST_MIN_SIZE (1 + CRYPTO_PUBLIC_KEY_SIZE + CRYPTO_NONCE_SIZE + CRYPTO_PUBLIC_KEY_SIZE + CRYPTO_MAC_SIZE)
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#define MAX_DATA_REQUEST_SIZE (ONION_MAX_DATA_SIZE - ONION_DATA_REQUEST_MIN_SIZE)
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typedef struct Onion_Announce Onion_Announce;
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/** These two are not public; they are for tests only! */
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uint8_t *_Nullable onion_announce_entry_public_key(Onion_Announce *_Nonnull onion_a, uint32_t entry);
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void onion_announce_entry_set_time(Onion_Announce *_Nonnull onion_a, uint32_t entry, uint64_t announce_time);
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/** @brief Create an onion announce request packet in packet of max_packet_length.
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*
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* Recommended value for max_packet_length is ONION_ANNOUNCE_REQUEST_MIN_SIZE.
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*
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* dest_client_id is the public key of the node the packet will be sent to.
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* public_key and secret_key is the kepair which will be used to encrypt the request.
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* ping_id is the ping id that will be sent in the request.
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* client_id is the client id of the node we are searching for.
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* data_public_key is the public key we want others to encrypt their data packets with.
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* sendback_data is the data of ONION_ANNOUNCE_SENDBACK_DATA_LENGTH length that we expect to
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* receive back in the response.
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*
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* return -1 on failure.
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* return packet length on success.
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*/
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int create_announce_request(const Memory *_Nonnull mem, const Random *_Nonnull rng, uint8_t *_Nonnull packet, uint16_t max_packet_length, const uint8_t *_Nonnull dest_client_id,
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const uint8_t *_Nonnull public_key, const uint8_t *_Nonnull secret_key, const uint8_t *_Nonnull ping_id, const uint8_t *_Nonnull client_id, const uint8_t *_Nonnull data_public_key,
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uint64_t sendback_data);
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/** @brief Create an onion data request packet in packet of max_packet_length.
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*
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* Recommended value for max_packet_length is ONION_ANNOUNCE_REQUEST_SIZE.
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*
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* public_key is the real public key of the node which we want to send the data of length length to.
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* encrypt_public_key is the public key used to encrypt the data packet.
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*
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* nonce is the nonce to encrypt this packet with
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*
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* return -1 on failure.
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* return 0 on success.
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*/
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int create_data_request(const Memory *_Nonnull mem, const Random *_Nonnull rng, uint8_t *_Nonnull packet, uint16_t max_packet_length, const uint8_t *_Nonnull public_key,
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const uint8_t *_Nonnull encrypt_public_key, const uint8_t *_Nonnull nonce, const uint8_t *_Nonnull data, uint16_t length);
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/** @brief Create and send an onion announce request packet.
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*
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* path is the path the request will take before it is sent to dest.
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*
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* public_key and secret_key is the kepair which will be used to encrypt the request.
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* ping_id is the ping id that will be sent in the request.
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* client_id is the client id of the node we are searching for.
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* data_public_key is the public key we want others to encrypt their data packets with.
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* sendback_data is the data of ONION_ANNOUNCE_SENDBACK_DATA_LENGTH length that we expect to
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* receive back in the response.
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*
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* return -1 on failure.
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* return 0 on success.
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*/
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int send_announce_request(const Logger *_Nonnull log, const Memory *_Nonnull mem, const Networking_Core *_Nonnull net, const Random *_Nonnull rng, const Onion_Path *_Nonnull path,
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const Node_format *_Nonnull dest, const uint8_t *_Nonnull public_key, const uint8_t *_Nonnull secret_key, const uint8_t *_Nonnull ping_id, const uint8_t *_Nonnull client_id,
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const uint8_t *_Nonnull data_public_key, uint64_t sendback_data);
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/** @brief Create and send an onion data request packet.
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*
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* path is the path the request will take before it is sent to dest.
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* (if dest knows the person with the public_key they should
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* send the packet to that person in the form of a response)
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*
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* public_key is the real public key of the node which we want to send the data of length length to.
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* encrypt_public_key is the public key used to encrypt the data packet.
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*
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* nonce is the nonce to encrypt this packet with
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*
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* The maximum length of data is MAX_DATA_REQUEST_SIZE.
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*
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* return -1 on failure.
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* return 0 on success.
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*/
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int send_data_request(const Logger *_Nonnull log, const Memory *_Nonnull mem, const Networking_Core *_Nonnull net, const Random *_Nonnull rng, const Onion_Path *_Nonnull path,
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const IP_Port *_Nonnull dest, const uint8_t *_Nonnull public_key, const uint8_t *_Nonnull encrypt_public_key, const uint8_t *_Nonnull nonce, const uint8_t *_Nonnull data, uint16_t length);
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typedef int pack_extra_data_cb(void *_Nonnull object, const Logger *_Nonnull logger, const Memory *_Nonnull mem, const Mono_Time *_Nonnull mono_time,
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uint8_t num_nodes, uint8_t *_Nonnull plain, uint16_t plain_size,
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uint8_t *_Nonnull response, uint16_t response_size, uint16_t offset);
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void onion_announce_extra_data_callback(Onion_Announce *_Nonnull onion_a, uint16_t extra_data_max_size, pack_extra_data_cb *_Nonnull extra_data_callback, void *_Nonnull extra_data_object);
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Onion_Announce *_Nullable new_onion_announce(const Logger *_Nonnull log, const Memory *_Nonnull mem, const Random *_Nonnull rng, const Mono_Time *_Nonnull mono_time, DHT *_Nonnull dht,
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Networking_Core *_Nonnull net);
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void kill_onion_announce(Onion_Announce *_Nullable onion_a);
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#endif /* C_TOXCORE_TOXCORE_ONION_ANNOUNCE_H */
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