/* Copyright (c) 2001 Matej Pfajfar. * Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. * Copyright (c) 2007-2011, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file dirserv.h * \brief Header file for dirserv.c. **/ #ifndef _TOR_DIRSERV_H #define _TOR_DIRSERV_H /** What fraction (1 over this number) of the relay ID space do we * (as a directory authority) launch connections to at each reachability * test? */ #define REACHABILITY_MODULO_PER_TEST 128 /** How often (in seconds) do we launch reachability tests? */ #define REACHABILITY_TEST_INTERVAL 10 /** How many seconds apart are the reachability tests for a given relay? */ #define REACHABILITY_TEST_CYCLE_PERIOD \ (REACHABILITY_TEST_INTERVAL*REACHABILITY_MODULO_PER_TEST) /** Maximum length of an exit policy summary. */ #define MAX_EXITPOLICY_SUMMARY_LEN 1000 /** Maximum allowable length of a version line in a networkstatus. */ #define MAX_V_LINE_LEN 128 /** Length of "r Authority BadDirectory BadExit Exit Fast Guard HSDir Named * Running Stable Unnamed V2Dir Valid\n". */ #define MAX_FLAG_LINE_LEN 96 /** Length of "w" line for weighting. Currently at most * "w Bandwidth=<uint32t> Measured=<uint32t>\n" */ #define MAX_WEIGHT_LINE_LEN (12+10+10+10+1) /** Maximum length of an exit policy summary line. */ #define MAX_POLICY_LINE_LEN (3+MAX_EXITPOLICY_SUMMARY_LEN) /** Amount of space to allocate for each entry: r, s, and v lines. */ #define RS_ENTRY_LEN \ ( /* first line */ \ MAX_NICKNAME_LEN+BASE64_DIGEST_LEN*2+ISO_TIME_LEN+INET_NTOA_BUF_LEN+ \ 5*2 /* ports */ + 10 /* punctuation */ + \ /* second line */ \ MAX_FLAG_LINE_LEN + \ /* weight line */ \ MAX_WEIGHT_LINE_LEN + \ /* p line. */ \ MAX_POLICY_LINE_LEN + \ /* v line. */ \ MAX_V_LINE_LEN \ ) int connection_dirserv_flushed_some(dir_connection_t *conn); int dirserv_add_own_fingerprint(const char *nickname, crypto_pk_env_t *pk); int dirserv_load_fingerprint_file(void); void dirserv_free_fingerprint_list(void); const char *dirserv_get_nickname_by_digest(const char *digest); enum was_router_added_t dirserv_add_multiple_descriptors( const char *desc, uint8_t purpose, const char *source, const char **msg); enum was_router_added_t dirserv_add_descriptor(routerinfo_t *ri, const char **msg, const char *source); void dirserv_set_router_is_running(routerinfo_t *router, time_t now); int list_server_status_v1(smartlist_t *routers, char **router_status_out, int for_controller); int dirserv_dump_directory_to_string(char **dir_out, crypto_pk_env_t *private_key); int directory_fetches_from_authorities(const or_options_t *options); int directory_fetches_dir_info_early(const or_options_t *options); int directory_fetches_dir_info_later(const or_options_t *options); int directory_caches_v2_dir_info(const or_options_t *options); #define directory_caches_v1_dir_info(o) directory_caches_v2_dir_info(o) int directory_caches_dir_info(const or_options_t *options); int directory_permits_begindir_requests(const or_options_t *options); int directory_permits_controller_requests(const or_options_t *options); int directory_too_idle_to_fetch_descriptors(const or_options_t *options, time_t now); void directory_set_dirty(void); cached_dir_t *dirserv_get_directory(void); cached_dir_t *dirserv_get_runningrouters(void); cached_dir_t *dirserv_get_consensus(const char *flavor_name); void dirserv_set_cached_directory(const char *directory, time_t when, int is_running_routers); void dirserv_set_cached_networkstatus_v2(const char *directory, const char *identity, time_t published); void dirserv_set_cached_consensus_networkstatus(const char *consensus, const char *flavor_name, const digests_t *digests, time_t published); void dirserv_clear_old_networkstatuses(time_t cutoff); void dirserv_clear_old_v1_info(time_t now); void dirserv_get_networkstatus_v2(smartlist_t *result, const char *key); void dirserv_get_networkstatus_v2_fingerprints(smartlist_t *result, const char *key); int dirserv_get_routerdesc_fingerprints(smartlist_t *fps_out, const char *key, const char **msg, int for_unencrypted_conn, int is_extrainfo); int dirserv_get_routerdescs(smartlist_t *descs_out, const char *key, const char **msg); void dirserv_orconn_tls_done(const char *address, uint16_t or_port, const char *digest_rcvd, int as_advertised); int dirserv_should_launch_reachability_test(const routerinfo_t *ri, const routerinfo_t *ri_old); void dirserv_single_reachability_test(time_t now, routerinfo_t *router); void dirserv_test_reachability(time_t now); int authdir_wants_to_reject_router(routerinfo_t *ri, const char **msg, int complain, int *valid_out); uint32_t dirserv_router_get_status(const routerinfo_t *router, const char **msg); void dirserv_set_node_flags_from_authoritative_status(node_t *node, uint32_t authstatus); int dirserv_would_reject_router(const routerstatus_t *rs); int dirserv_remove_old_statuses(smartlist_t *fps, time_t cutoff); int dirserv_have_any_serverdesc(smartlist_t *fps, int spool_src); int dirserv_have_any_microdesc(const smartlist_t *fps); size_t dirserv_estimate_data_size(smartlist_t *fps, int is_serverdescs, int compressed); size_t dirserv_estimate_microdesc_size(const smartlist_t *fps, int compressed); int routerstatus_format_entry(char *buf, size_t buf_len, const routerstatus_t *rs, const char *platform, routerstatus_format_type_t format); void dirserv_free_all(void); void cached_dir_decref(cached_dir_t *d); cached_dir_t *new_cached_dir(char *s, time_t published); #ifdef DIRSERV_PRIVATE int measured_bw_line_parse(measured_bw_line_t *out, const char *line); int measured_bw_line_apply(measured_bw_line_t *parsed_line, smartlist_t *routerstatuses); #endif int dirserv_read_measured_bandwidths(const char *from_file, smartlist_t *routerstatuses); #endif