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/* Copyright (c) 2016-2019, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file hs_intropoint.h
* \brief Header file for hs_intropoint.c.
**/
#ifndef TOR_HS_INTRO_H
#define TOR_HS_INTRO_H
#include "lib/crypt_ops/crypto_curve25519.h"
#include "feature/nodelist/torcert.h"
/* Object containing introduction point common data between the service and
* the client side. */
typedef struct hs_intropoint_t {
/* Does this intro point only supports legacy ID ?. */
unsigned int is_only_legacy : 1;
/* Authentication key certificate from the descriptor. */
tor_cert_t *auth_key_cert;
/* A list of link specifier. */
smartlist_t *link_specifiers;
} hs_intropoint_t;
int hs_intro_received_establish_intro(or_circuit_t *circ,
const uint8_t *request,
size_t request_len);
int hs_intro_received_introduce1(or_circuit_t *circ, const uint8_t *request,
size_t request_len);
MOCK_DECL(int, hs_intro_send_intro_established_cell,(or_circuit_t *circ));
/* also used by rendservice.c */
int hs_intro_circuit_is_suitable_for_establish_intro(const or_circuit_t *circ);
hs_intropoint_t *hs_intro_new(void);
void hs_intropoint_clear(hs_intropoint_t *ip);
#ifdef HS_INTROPOINT_PRIVATE
#include "trunnel/hs/cell_establish_intro.h"
#include "trunnel/hs/cell_introduce1.h"
STATIC int
verify_establish_intro_cell(const trn_cell_establish_intro_t *out,
const uint8_t *circuit_key_material,
size_t circuit_key_material_len);
STATIC void
get_auth_key_from_cell(ed25519_public_key_t *auth_key_out,
unsigned int cell_type, const void *cell);
STATIC int introduce1_cell_is_legacy(const uint8_t *request);
STATIC int handle_introduce1(or_circuit_t *client_circ,
const uint8_t *request, size_t request_len);
STATIC int validate_introduce1_parsed_cell(const trn_cell_introduce1_t *cell);
STATIC int circuit_is_suitable_for_introduce1(const or_circuit_t *circ);
#endif /* defined(HS_INTROPOINT_PRIVATE) */
#endif /* !defined(TOR_HS_INTRO_H) */
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