123 lines
5.6 KiB
C
123 lines
5.6 KiB
C
/* Copyright (c) 2001 Matej Pfajfar.
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* Copyright (c) 2001-2004, Roger Dingledine.
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2013, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file directory.h
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* \brief Header file for directory.c.
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**/
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#ifndef TOR_DIRECTORY_H
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#define TOR_DIRECTORY_H
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int directories_have_accepted_server_descriptor(void);
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void directory_post_to_dirservers(uint8_t dir_purpose, uint8_t router_purpose,
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dirinfo_type_t type, const char *payload,
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size_t payload_len, size_t extrainfo_len);
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void directory_get_from_dirserver(uint8_t dir_purpose, uint8_t router_purpose,
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const char *resource,
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int pds_flags);
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void directory_get_from_all_authorities(uint8_t dir_purpose,
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uint8_t router_purpose,
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const char *resource);
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/** Enumeration of ways to connect to a directory server */
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typedef enum {
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/** Default: connect over a one-hop Tor circuit but fall back to direct
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* connection */
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DIRIND_ONEHOP=0,
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/** Connect over a multi-hop anonymizing Tor circuit */
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DIRIND_ANONYMOUS=1,
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/** Conncet to the DirPort directly */
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DIRIND_DIRECT_CONN,
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/** Connect over a multi-hop anonymizing Tor circuit to our dirport */
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DIRIND_ANON_DIRPORT,
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} dir_indirection_t;
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void directory_initiate_command_routerstatus(const routerstatus_t *status,
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uint8_t dir_purpose,
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uint8_t router_purpose,
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dir_indirection_t indirection,
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const char *resource,
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const char *payload,
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size_t payload_len,
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time_t if_modified_since);
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void directory_initiate_command_routerstatus_rend(const routerstatus_t *status,
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uint8_t dir_purpose,
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uint8_t router_purpose,
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dir_indirection_t indirection,
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const char *resource,
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const char *payload,
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size_t payload_len,
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time_t if_modified_since,
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const rend_data_t *rend_query);
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int parse_http_response(const char *headers, int *code, time_t *date,
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compress_method_t *compression, char **response);
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int connection_dir_is_encrypted(dir_connection_t *conn);
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int connection_dir_reached_eof(dir_connection_t *conn);
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int connection_dir_process_inbuf(dir_connection_t *conn);
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int connection_dir_finished_flushing(dir_connection_t *conn);
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int connection_dir_finished_connecting(dir_connection_t *conn);
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void connection_dir_about_to_close(dir_connection_t *dir_conn);
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void directory_initiate_command(const char *address, const tor_addr_t *addr,
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uint16_t or_port, uint16_t dir_port,
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const char *digest,
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uint8_t dir_purpose, uint8_t router_purpose,
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dir_indirection_t indirection,
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const char *resource,
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const char *payload, size_t payload_len,
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time_t if_modified_since);
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#define DSR_HEX (1<<0)
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#define DSR_BASE64 (1<<1)
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#define DSR_DIGEST256 (1<<2)
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#define DSR_SORT_UNIQ (1<<3)
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int dir_split_resource_into_fingerprints(const char *resource,
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smartlist_t *fp_out, int *compressed_out,
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int flags);
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int dir_split_resource_into_fingerprint_pairs(const char *res,
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smartlist_t *pairs_out);
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char *directory_dump_request_log(void);
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void note_request(const char *key, size_t bytes);
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int router_supports_extrainfo(const char *identity_digest, int is_authority);
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time_t download_status_increment_failure(download_status_t *dls,
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int status_code, const char *item,
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int server, time_t now);
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/** Increment the failure count of the download_status_t <b>dls</b>, with
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* the optional status code <b>sc</b>. */
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#define download_status_failed(dls, sc) \
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download_status_increment_failure((dls), (sc), NULL, \
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get_options()->DirPort_set, time(NULL))
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void download_status_reset(download_status_t *dls);
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static int download_status_is_ready(download_status_t *dls, time_t now,
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int max_failures);
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/** Return true iff, as of <b>now</b>, the resource tracked by <b>dls</b> is
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* ready to get its download reattempted. */
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static INLINE int
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download_status_is_ready(download_status_t *dls, time_t now,
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int max_failures)
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{
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return (dls->n_download_failures <= max_failures
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&& dls->next_attempt_at <= now);
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}
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static void download_status_mark_impossible(download_status_t *dl);
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/** Mark <b>dl</b> as never downloadable. */
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static INLINE void
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download_status_mark_impossible(download_status_t *dl)
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{
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dl->n_download_failures = IMPOSSIBLE_TO_DOWNLOAD;
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}
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int download_status_get_n_failures(const download_status_t *dls);
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#endif
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