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/* Copyright (c) 2016, 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
/* Authentication key type in an ESTABLISH_INTRO cell. */
enum hs_intro_auth_key_type {
HS_INTRO_AUTH_KEY_TYPE_LEGACY0 = 0x00,
HS_INTRO_AUTH_KEY_TYPE_LEGACY1 = 0x01,
HS_INTRO_AUTH_KEY_TYPE_ED25519 = 0x02,
};
/* INTRODUCE_ACK status code. */
typedef enum {
HS_INTRO_ACK_STATUS_SUCCESS = 0x0000,
HS_INTRO_ACK_STATUS_UNKNOWN_ID = 0x0001,
HS_INTRO_ACK_STATUS_BAD_FORMAT = 0x0002,
HS_INTRO_ACK_STATUS_CANT_RELAY = 0x0003,
} hs_intro_ack_status_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);
#ifdef HS_INTROPOINT_PRIVATE
#include "hs/cell_establish_intro.h"
#include "hs/cell_introduce1.h"
STATIC int
verify_establish_intro_cell(const hs_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 hs_cell_introduce1_t *cell);
STATIC int circuit_is_suitable_for_introduce1(const or_circuit_t *circ);
#endif /* HS_INTROPOINT_PRIVATE */
#endif /* TOR_HS_INTRO_H */
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