112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/* Copyright (c) 2016-2017, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file hs_circuitmap.h
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* \brief Header file for hs_circuitmap.c.
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**/
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#ifndef TOR_HS_CIRCUITMAP_H
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#define TOR_HS_CIRCUITMAP_H
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typedef HT_HEAD(hs_circuitmap_ht, circuit_t) hs_circuitmap_ht;
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typedef struct hs_token_s hs_token_t;
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struct or_circuit_t;
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struct origin_circuit_t;
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/** Public HS circuitmap API: */
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/** Public relay-side API: */
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struct or_circuit_t *
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hs_circuitmap_get_intro_circ_v3_relay_side(const
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ed25519_public_key_t *auth_key);
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struct or_circuit_t *
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hs_circuitmap_get_intro_circ_v2_relay_side(const uint8_t *digest);
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struct or_circuit_t *
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hs_circuitmap_get_rend_circ_relay_side(const uint8_t *cookie);
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void hs_circuitmap_register_rend_circ_relay_side(struct or_circuit_t *circ,
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const uint8_t *cookie);
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void hs_circuitmap_register_intro_circ_v2_relay_side(struct or_circuit_t *circ,
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const uint8_t *digest);
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void hs_circuitmap_register_intro_circ_v3_relay_side(struct or_circuit_t *circ,
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const ed25519_public_key_t *auth_key);
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/** Public service-side API: */
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struct origin_circuit_t *
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hs_circuitmap_get_intro_circ_v3_service_side(const
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ed25519_public_key_t *auth_key);
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struct origin_circuit_t *
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hs_circuitmap_get_intro_circ_v2_service_side(const uint8_t *digest);
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struct origin_circuit_t *
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hs_circuitmap_get_rend_circ_service_side(const uint8_t *cookie);
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struct origin_circuit_t *
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hs_circuitmap_get_rend_circ_client_side(const uint8_t *cookie);
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void hs_circuitmap_register_intro_circ_v2_service_side(
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struct origin_circuit_t *circ,
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const uint8_t *digest);
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void hs_circuitmap_register_intro_circ_v3_service_side(
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struct origin_circuit_t *circ,
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const ed25519_public_key_t *auth_key);
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void hs_circuitmap_register_rend_circ_service_side(
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struct origin_circuit_t *circ,
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const uint8_t *cookie);
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void hs_circuitmap_register_rend_circ_client_side(
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struct origin_circuit_t *circ,
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const uint8_t *cookie);
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void hs_circuitmap_remove_circuit(struct circuit_t *circ);
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void hs_circuitmap_init(void);
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void hs_circuitmap_free_all(void);
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#ifdef HS_CIRCUITMAP_PRIVATE
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/** Represents the type of HS token. */
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typedef enum {
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/** A rendezvous cookie on a relay (128bit)*/
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HS_TOKEN_REND_RELAY_SIDE,
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/** A v2 introduction point pubkey on a relay (160bit) */
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HS_TOKEN_INTRO_V2_RELAY_SIDE,
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/** A v3 introduction point pubkey on a relay (256bit) */
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HS_TOKEN_INTRO_V3_RELAY_SIDE,
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/** A rendezvous cookie on a hidden service (128bit)*/
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HS_TOKEN_REND_SERVICE_SIDE,
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/** A v2 introduction point pubkey on a hidden service (160bit) */
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HS_TOKEN_INTRO_V2_SERVICE_SIDE,
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/** A v3 introduction point pubkey on a hidden service (256bit) */
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HS_TOKEN_INTRO_V3_SERVICE_SIDE,
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/** A rendezvous cookie on the client side (128bit) */
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HS_TOKEN_REND_CLIENT_SIDE,
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} hs_token_type_t;
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/** Represents a token used in the HS protocol. Each such token maps to a
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* specific introduction or rendezvous circuit. */
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struct hs_token_s {
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/* Type of HS token. */
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hs_token_type_t type;
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/* The size of the token (depends on the type). */
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size_t token_len;
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/* The token itself. Memory allocated at runtime. */
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uint8_t *token;
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};
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#endif /* defined(HS_CIRCUITMAP_PRIVATE) */
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#ifdef TOR_UNIT_TESTS
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hs_circuitmap_ht *get_hs_circuitmap(void);
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#endif /* TOR_UNIT_TESTS */
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#endif /* !defined(TOR_HS_CIRCUITMAP_H) */
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