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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) 2007-2012, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file directory.h
* \brief Header file for directory.c.
**/
#ifndef _TOR_DIRECTORY_H
#define _TOR_DIRECTORY_H
int directories_have_accepted_server_descriptor(void);
void directory_post_to_dirservers(uint8_t dir_purpose, uint8_t router_purpose,
dirinfo_type_t type, const char *payload,
size_t payload_len, size_t extrainfo_len);
void directory_get_from_dirserver(uint8_t dir_purpose, uint8_t router_purpose,
const char *resource,
int pds_flags);
void directory_get_from_all_authorities(uint8_t dir_purpose,
uint8_t router_purpose,
const char *resource);
/** Enumeration of ways to connect to a directory server */
typedef enum {
/** Default: connect over a one-hop Tor circuit but fall back to direct
* connection */
DIRIND_ONEHOP=0,
/** Connect over a multi-hop anonymizing Tor circuit */
DIRIND_ANONYMOUS=1,
/** Conncet to the DirPort directly */
DIRIND_DIRECT_CONN,
/** Connect over a multi-hop anonymizing Tor circuit to our dirport */
DIRIND_ANON_DIRPORT,
} dir_indirection_t;
void directory_initiate_command_routerstatus(const routerstatus_t *status,
uint8_t dir_purpose,
uint8_t router_purpose,
dir_indirection_t indirection,
const char *resource,
const char *payload,
size_t payload_len,
time_t if_modified_since);
void directory_initiate_command_routerstatus_rend(const routerstatus_t *status,
uint8_t dir_purpose,
uint8_t router_purpose,
dir_indirection_t indirection,
const char *resource,
const char *payload,
size_t payload_len,
time_t if_modified_since,
const rend_data_t *rend_query);
int parse_http_response(const char *headers, int *code, time_t *date,
compress_method_t *compression, char **response);
int connection_dir_is_encrypted(dir_connection_t *conn);
int connection_dir_reached_eof(dir_connection_t *conn);
int connection_dir_process_inbuf(dir_connection_t *conn);
int connection_dir_finished_flushing(dir_connection_t *conn);
int connection_dir_finished_connecting(dir_connection_t *conn);
void connection_dir_about_to_close(dir_connection_t *dir_conn);
void directory_initiate_command(const char *address, const tor_addr_t *addr,
uint16_t or_port, uint16_t dir_port,
const char *digest,
uint8_t dir_purpose, uint8_t router_purpose,
dir_indirection_t indirection,
const char *resource,
const char *payload, size_t payload_len,
time_t if_modified_since);
#define DSR_HEX (1<<0)
#define DSR_BASE64 (1<<1)
#define DSR_DIGEST256 (1<<2)
#define DSR_SORT_UNIQ (1<<3)
int dir_split_resource_into_fingerprints(const char *resource,
smartlist_t *fp_out, int *compressed_out,
int flags);
int dir_split_resource_into_fingerprint_pairs(const char *res,
smartlist_t *pairs_out);
char *directory_dump_request_log(void);
void note_request(const char *key, size_t bytes);
int router_supports_extrainfo(const char *identity_digest, int is_authority);
time_t download_status_increment_failure(download_status_t *dls,
int status_code, const char *item,
int server, time_t now);
/** Increment the failure count of the download_status_t <b>dls</b>, with
* the optional status code <b>sc</b>. */
#define download_status_failed(dls, sc) \
download_status_increment_failure((dls), (sc), NULL, \
get_options()->DirPort_set, time(NULL))
void download_status_reset(download_status_t *dls);
static int download_status_is_ready(download_status_t *dls, time_t now,
int max_failures);
/** Return true iff, as of <b>now</b>, the resource tracked by <b>dls</b> is
* ready to get its download reattempted. */
static INLINE int
download_status_is_ready(download_status_t *dls, time_t now,
int max_failures)
{
return (dls->n_download_failures <= max_failures
&& dls->next_attempt_at <= now);
}
static void download_status_mark_impossible(download_status_t *dl);
/** Mark <b>dl</b> as never downloadable. */
static INLINE void
download_status_mark_impossible(download_status_t *dl)
{
dl->n_download_failures = IMPOSSIBLE_TO_DOWNLOAD;
}
int download_status_get_n_failures(const download_status_t *dls);
#endif
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