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259 lines
12 KiB
C
259 lines
12 KiB
C
/* Copyright (c) 2001-2004, Roger Dingledine.
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2016, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file routerlist.h
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* \brief Header file for routerlist.c.
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**/
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#ifndef TOR_ROUTERLIST_H
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#define TOR_ROUTERLIST_H
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#include "testsupport.h"
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int get_n_authorities(dirinfo_type_t type);
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int trusted_dirs_reload_certs(void);
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/*
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* Pass one of these as source to trusted_dirs_load_certs_from_string()
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* to indicate whence string originates; this controls error handling
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* behavior such as marking downloads as failed.
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*/
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#define TRUSTED_DIRS_CERTS_SRC_SELF 0
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#define TRUSTED_DIRS_CERTS_SRC_FROM_STORE 1
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#define TRUSTED_DIRS_CERTS_SRC_DL_BY_ID_DIGEST 2
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#define TRUSTED_DIRS_CERTS_SRC_DL_BY_ID_SK_DIGEST 3
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#define TRUSTED_DIRS_CERTS_SRC_FROM_VOTE 4
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int trusted_dirs_load_certs_from_string(const char *contents, int source,
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int flush, const char *source_dir);
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void trusted_dirs_flush_certs_to_disk(void);
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authority_cert_t *authority_cert_get_newest_by_id(const char *id_digest);
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authority_cert_t *authority_cert_get_by_sk_digest(const char *sk_digest);
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authority_cert_t *authority_cert_get_by_digests(const char *id_digest,
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const char *sk_digest);
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void authority_cert_get_all(smartlist_t *certs_out);
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void authority_cert_dl_failed(const char *id_digest,
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const char *signing_key_digest, int status);
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void authority_certs_fetch_missing(networkstatus_t *status, time_t now,
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const char *dir_hint);
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int router_reload_router_list(void);
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int authority_cert_dl_looks_uncertain(const char *id_digest);
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const smartlist_t *router_get_trusted_dir_servers(void);
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const smartlist_t *router_get_fallback_dir_servers(void);
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int authority_cert_is_blacklisted(const authority_cert_t *cert);
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const routerstatus_t *router_pick_directory_server(dirinfo_type_t type,
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int flags);
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dir_server_t *router_get_trusteddirserver_by_digest(const char *d);
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dir_server_t *router_get_fallback_dirserver_by_digest(
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const char *digest);
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int router_digest_is_fallback_dir(const char *digest);
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MOCK_DECL(dir_server_t *, trusteddirserver_get_by_v3_auth_digest,
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(const char *d));
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const routerstatus_t *router_pick_trusteddirserver(dirinfo_type_t type,
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int flags);
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const routerstatus_t *router_pick_fallback_dirserver(dirinfo_type_t type,
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int flags);
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int router_skip_or_reachability(const or_options_t *options, int try_ip_pref);
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int router_get_my_share_of_directory_requests(double *v3_share_out);
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void router_reset_status_download_failures(void);
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int routers_have_same_or_addrs(const routerinfo_t *r1, const routerinfo_t *r2);
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void router_add_running_nodes_to_smartlist(smartlist_t *sl, int allow_invalid,
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int need_uptime, int need_capacity,
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int need_guard, int need_desc,
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int pref_addr, int direct_conn);
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const routerinfo_t *routerlist_find_my_routerinfo(void);
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uint32_t router_get_advertised_bandwidth(const routerinfo_t *router);
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uint32_t router_get_advertised_bandwidth_capped(const routerinfo_t *router);
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const node_t *node_sl_choose_by_bandwidth(const smartlist_t *sl,
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bandwidth_weight_rule_t rule);
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double frac_nodes_with_descriptors(const smartlist_t *sl,
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bandwidth_weight_rule_t rule);
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const node_t *router_choose_random_node(smartlist_t *excludedsmartlist,
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struct routerset_t *excludedset,
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router_crn_flags_t flags);
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int router_is_named(const routerinfo_t *router);
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int router_digest_is_trusted_dir_type(const char *digest,
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dirinfo_type_t type);
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#define router_digest_is_trusted_dir(d) \
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router_digest_is_trusted_dir_type((d), NO_DIRINFO)
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int router_addr_is_trusted_dir(uint32_t addr);
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int hexdigest_to_digest(const char *hexdigest, char *digest);
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const routerinfo_t *router_get_by_id_digest(const char *digest);
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routerinfo_t *router_get_mutable_by_digest(const char *digest);
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signed_descriptor_t *router_get_by_descriptor_digest(const char *digest);
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MOCK_DECL(signed_descriptor_t *,router_get_by_extrainfo_digest,
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(const char *digest));
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signed_descriptor_t *extrainfo_get_by_descriptor_digest(const char *digest);
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const char *signed_descriptor_get_body(const signed_descriptor_t *desc);
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const char *signed_descriptor_get_annotations(const signed_descriptor_t *desc);
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routerlist_t *router_get_routerlist(void);
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void routerinfo_free(routerinfo_t *router);
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void extrainfo_free(extrainfo_t *extrainfo);
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void routerlist_free(routerlist_t *rl);
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void dump_routerlist_mem_usage(int severity);
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void routerlist_remove(routerlist_t *rl, routerinfo_t *ri, int make_old,
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time_t now);
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void routerlist_free_all(void);
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void routerlist_reset_warnings(void);
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MOCK_DECL(smartlist_t *, list_authority_ids_with_downloads, (void));
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MOCK_DECL(download_status_t *, id_only_download_status_for_authority_id,
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(const char *digest));
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MOCK_DECL(smartlist_t *, list_sk_digests_for_authority_id,
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(const char *digest));
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MOCK_DECL(download_status_t *, download_status_for_authority_id_and_sk,
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(const char *id_digest, const char *sk_digest));
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static int WRA_WAS_ADDED(was_router_added_t s);
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static int WRA_WAS_OUTDATED(was_router_added_t s);
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static int WRA_WAS_REJECTED(was_router_added_t s);
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static int WRA_NEVER_DOWNLOADABLE(was_router_added_t s);
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/** Return true iff the outcome code in <b>s</b> indicates that the descriptor
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* was added. It might still be necessary to check whether the descriptor
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* generator should be notified.
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*/
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static inline int
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WRA_WAS_ADDED(was_router_added_t s) {
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return s == ROUTER_ADDED_SUCCESSFULLY || s == ROUTER_ADDED_NOTIFY_GENERATOR;
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}
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/** Return true iff the outcome code in <b>s</b> indicates that the descriptor
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* was not added because it was either:
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* - not in the consensus
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* - neither in the consensus nor in any networkstatus document
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* - it was outdated.
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* - its certificates were expired.
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*/
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static inline int WRA_WAS_OUTDATED(was_router_added_t s)
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{
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return (s == ROUTER_WAS_TOO_OLD ||
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s == ROUTER_IS_ALREADY_KNOWN ||
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s == ROUTER_NOT_IN_CONSENSUS ||
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s == ROUTER_NOT_IN_CONSENSUS_OR_NETWORKSTATUS ||
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s == ROUTER_CERTS_EXPIRED);
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}
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/** Return true iff the outcome code in <b>s</b> indicates that the descriptor
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* was flat-out rejected. */
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static inline int WRA_WAS_REJECTED(was_router_added_t s)
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{
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return (s == ROUTER_AUTHDIR_REJECTS);
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}
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/** Return true iff the outcome code in <b>s</b> indicates that the descriptor
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* was flat-out rejected. */
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static inline int WRA_NEVER_DOWNLOADABLE(was_router_added_t s)
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{
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return (s == ROUTER_AUTHDIR_REJECTS ||
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s == ROUTER_BAD_EI ||
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s == ROUTER_WAS_TOO_OLD ||
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s == ROUTER_CERTS_EXPIRED);
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}
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was_router_added_t router_add_to_routerlist(routerinfo_t *router,
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const char **msg,
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int from_cache,
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int from_fetch);
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was_router_added_t router_add_extrainfo_to_routerlist(
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extrainfo_t *ei, const char **msg,
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int from_cache, int from_fetch);
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void routerlist_descriptors_added(smartlist_t *sl, int from_cache);
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void routerlist_remove_old_routers(void);
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int router_load_single_router(const char *s, uint8_t purpose, int cache,
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const char **msg);
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int router_load_routers_from_string(const char *s, const char *eos,
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saved_location_t saved_location,
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smartlist_t *requested_fingerprints,
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int descriptor_digests,
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const char *prepend_annotations);
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void router_load_extrainfo_from_string(const char *s, const char *eos,
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saved_location_t saved_location,
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smartlist_t *requested_fingerprints,
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int descriptor_digests);
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void routerlist_retry_directory_downloads(time_t now);
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int router_exit_policy_rejects_all(const routerinfo_t *router);
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dir_server_t *trusted_dir_server_new(const char *nickname, const char *address,
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uint16_t dir_port, uint16_t or_port,
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const tor_addr_port_t *addrport_ipv6,
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const char *digest, const char *v3_auth_digest,
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dirinfo_type_t type, double weight);
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dir_server_t *fallback_dir_server_new(const tor_addr_t *addr,
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uint16_t dir_port, uint16_t or_port,
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const tor_addr_port_t *addrport_ipv6,
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const char *id_digest, double weight);
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void dir_server_add(dir_server_t *ent);
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void authority_cert_free(authority_cert_t *cert);
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void clear_dir_servers(void);
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void update_consensus_router_descriptor_downloads(time_t now, int is_vote,
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networkstatus_t *consensus);
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void update_router_descriptor_downloads(time_t now);
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void update_all_descriptor_downloads(time_t now);
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void update_extrainfo_downloads(time_t now);
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void router_reset_descriptor_download_failures(void);
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int router_differences_are_cosmetic(const routerinfo_t *r1,
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const routerinfo_t *r2);
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int routerinfo_incompatible_with_extrainfo(const crypto_pk_t *ri,
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extrainfo_t *ei,
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signed_descriptor_t *sd,
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const char **msg);
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int routerinfo_has_curve25519_onion_key(const routerinfo_t *ri);
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int routerstatus_version_supports_ntor(const routerstatus_t *rs,
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int allow_unknown_versions);
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void routerlist_assert_ok(const routerlist_t *rl);
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const char *esc_router_info(const routerinfo_t *router);
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void routers_sort_by_identity(smartlist_t *routers);
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void refresh_all_country_info(void);
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void list_pending_microdesc_downloads(digest256map_t *result);
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void launch_descriptor_downloads(int purpose,
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smartlist_t *downloadable,
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const routerstatus_t *source,
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time_t now);
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int hex_digest_nickname_decode(const char *hexdigest,
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char *digest_out,
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char *nickname_qualifier_out,
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char *nickname_out);
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int hex_digest_nickname_matches(const char *hexdigest,
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const char *identity_digest,
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const char *nickname, int is_named);
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#ifdef ROUTERLIST_PRIVATE
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STATIC int choose_array_element_by_weight(const uint64_t *entries,
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int n_entries);
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STATIC void scale_array_elements_to_u64(uint64_t *entries_out,
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const double *entries_in,
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int n_entries,
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uint64_t *total_out);
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STATIC const routerstatus_t *router_pick_directory_server_impl(
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dirinfo_type_t auth, int flags,
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int *n_busy_out);
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MOCK_DECL(int, router_descriptor_is_older_than, (const routerinfo_t *router,
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int seconds));
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MOCK_DECL(STATIC was_router_added_t, extrainfo_insert,
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(routerlist_t *rl, extrainfo_t *ei, int warn_if_incompatible));
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MOCK_DECL(STATIC void, initiate_descriptor_downloads,
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(const routerstatus_t *source, int purpose, smartlist_t *digests,
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int lo, int hi, int pds_flags));
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STATIC int router_is_already_dir_fetching(const tor_addr_port_t *ap,
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int serverdesc, int microdesc);
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#endif
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#endif
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