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/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* @file dir_connection_st.h
* @brief Client/server directory connection structure.
**/
#ifndef DIR_CONNECTION_ST_H
#define DIR_CONNECTION_ST_H
#include "core/or/connection_st.h"
struct tor_compress_state_t;
/** Subtype of connection_t for an "directory connection" -- that is, an HTTP
* connection to retrieve or serve directory material. */
struct dir_connection_t {
connection_t base_;
/** Which 'resource' did we ask the directory for? This is typically the part
* of the URL string that defines, relative to the directory conn purpose,
* what thing we want. For example, in router descriptor downloads by
* descriptor digest, it contains "d/", then one or more +-separated
* fingerprints.
**/
char *requested_resource;
/** Is this dirconn direct, or via a multi-hop Tor circuit?
* Direct connections can use the DirPort, or BEGINDIR over the ORPort. */
unsigned int dirconn_direct:1;
/** If we're fetching descriptors, what router purpose shall we assign
* to them? */
uint8_t router_purpose;
/** List of spooled_resource_t for objects that we're spooling. We use
* it from back to front. */
smartlist_t *spool;
/** The compression object doing on-the-fly compression for spooled data. */
struct tor_compress_state_t *compress_state;
/** What rendezvous service are we querying for? */
rend_data_t *rend_data;
/* Hidden service connection identifier for dir connections: Used by HS
client-side code to fetch HS descriptors, and by the service-side code to
upload descriptors. */
struct hs_ident_dir_conn_t *hs_ident;
/** If this is a one-hop connection, tracks the state of the directory guard
* for this connection (if any). */
struct circuit_guard_state_t *guard_state;
char identity_digest[DIGEST_LEN]; /**< Hash of the public RSA key for
* the directory server's signing key. */
/** Unique ID for directory requests; this used to be in connection_t, but
* that's going away and being used on channels instead. The dirserver still
* needs this for the incoming side, so it's moved here. */
uint64_t dirreq_id;
#ifdef MEASUREMENTS_21206
/** Number of RELAY_DATA cells received. */
uint32_t data_cells_received;
/** Number of RELAY_DATA cells sent. */
uint32_t data_cells_sent;
#endif /* defined(MEASUREMENTS_21206) */
};
#endif /* !defined(DIR_CONNECTION_ST_H) */
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