88 lines
3.4 KiB
C
88 lines
3.4 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_common.h
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* \brief Header file containing common data for the whole HS subsytem.
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**/
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#ifndef TOR_HS_COMMON_H
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#define TOR_HS_COMMON_H
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#include "or.h"
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/* Protocol version 2. Use this instead of hardcoding "2" in the code base,
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* this adds a clearer semantic to the value when used. */
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#define HS_VERSION_TWO 2
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/* Version 3 of the protocol (prop224). */
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#define HS_VERSION_THREE 3
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/** Try to maintain this many intro points per service by default. */
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#define NUM_INTRO_POINTS_DEFAULT 3
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/** Maximum number of intro points per service. */
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#define NUM_INTRO_POINTS_MAX 10
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/** Number of extra intro points we launch if our set of intro nodes is empty.
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* See proposal 155, section 4. */
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#define NUM_INTRO_POINTS_EXTRA 2
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/** If we can't build our intro circuits, don't retry for this long. */
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#define INTRO_CIRC_RETRY_PERIOD (60*5)
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/** Don't try to build more than this many circuits before giving up for a
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* while.*/
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#define MAX_INTRO_CIRCS_PER_PERIOD 10
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/** How many times will a hidden service operator attempt to connect to a
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* requested rendezvous point before giving up? */
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#define MAX_REND_FAILURES 1
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/** How many seconds should we spend trying to connect to a requested
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* rendezvous point before giving up? */
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#define MAX_REND_TIMEOUT 30
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/* String prefix for the signature of ESTABLISH_INTRO */
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#define ESTABLISH_INTRO_SIG_PREFIX "Tor establish-intro cell v1"
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/* The default HS time period length */
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#define HS_TIME_PERIOD_LENGTH_DEFAULT 1440 /* 1440 minutes == one day */
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/* The minimum time period length as seen in prop224 section [TIME-PERIODS] */
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#define HS_TIME_PERIOD_LENGTH_MIN 30 /* minutes */
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/* The minimum time period length as seen in prop224 section [TIME-PERIODS] */
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#define HS_TIME_PERIOD_LENGTH_MAX (60 * 24 * 10) /* 10 days or 14400 minutes */
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/* The time period rotation offset as seen in prop224 section [TIME-PERIODS] */
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#define HS_TIME_PERIOD_ROTATION_OFFSET (12 * 60) /* minutes */
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int hs_check_service_private_dir(const char *username, const char *path,
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unsigned int dir_group_readable,
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unsigned int create);
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int hs_get_service_max_rend_failures(void);
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void rend_data_free(rend_data_t *data);
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rend_data_t *rend_data_dup(const rend_data_t *data);
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rend_data_t *rend_data_client_create(const char *onion_address,
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const char *desc_id,
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const char *cookie,
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rend_auth_type_t auth_type);
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rend_data_t *rend_data_service_create(const char *onion_address,
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const char *pk_digest,
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const uint8_t *cookie,
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rend_auth_type_t auth_type);
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const char *rend_data_get_address(const rend_data_t *rend_data);
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const char *rend_data_get_desc_id(const rend_data_t *rend_data,
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uint8_t replica, size_t *len_out);
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const uint8_t *rend_data_get_pk_digest(const rend_data_t *rend_data,
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size_t *len_out);
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uint64_t hs_get_next_time_period_num(time_t now);
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#ifdef HS_COMMON_PRIVATE
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#ifdef TOR_UNIT_TESTS
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STATIC uint64_t get_time_period_length(void);
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STATIC uint64_t get_time_period_num(time_t now);
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#endif /* TOR_UNIT_TESTS */
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#endif /* HS_COMMON_PRIVATE */
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#endif /* TOR_HS_COMMON_H */
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