mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-09-22 14:04:58 +02:00
a0f0897795
Previously the client would ask the bridge for microdescriptors, which are only supported in 0.2.3.x and later, and then fail to bootstrap when it didn't get the answers it wanted. Fixes bug 4013; bugfix on 0.2.3.2-alpha. The fix here is to revert to using normal descriptors if any of our bridges are known to not support microdescs. This is not ideal, a) because we'll start downloading a microdesc consensus as soon as we get a bridge descriptor, and that will waste time if we later get a bridge descriptor that tells us we don't like microdescriptors; and b) by changing our mind we're leaking to our other bridges that we have an old-version bridge. The alternate fix would have been to change we_use_microdescriptors_for_circuits() to ask if *any* of our bridges can support microdescriptors, and then change the directory logic that picks a bridge to only select from those that do. For people living in the future, where 0.2.2.x is obsolete, there won't be a difference. Note that in either of these potential fixes, we have risk of oscillation if our one funny-looking bridges goes away / comes back.
89 lines
4.6 KiB
C
89 lines
4.6 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) 2007-2011, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file routerparse.h
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* \brief Header file for routerparse.c.
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**/
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#ifndef _TOR_ROUTERPARSE_H
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#define _TOR_ROUTERPARSE_H
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int router_get_router_hash(const char *s, size_t s_len, char *digest);
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int router_get_dir_hash(const char *s, char *digest);
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int router_get_runningrouters_hash(const char *s, char *digest);
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int router_get_networkstatus_v2_hash(const char *s, char *digest);
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int router_get_networkstatus_v3_hash(const char *s, char *digest,
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digest_algorithm_t algorithm);
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int router_get_networkstatus_v3_hashes(const char *s, digests_t *digests);
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int router_get_extrainfo_hash(const char *s, char *digest);
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#define DIROBJ_MAX_SIG_LEN 256
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int router_append_dirobj_signature(char *buf, size_t buf_len,
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const char *digest,
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size_t digest_len,
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crypto_pk_t *private_key);
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int router_parse_list_from_string(const char **s, const char *eos,
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smartlist_t *dest,
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saved_location_t saved_location,
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int is_extrainfo,
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int allow_annotations,
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const char *prepend_annotations);
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int router_parse_runningrouters(const char *str);
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int router_parse_directory(const char *str);
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routerinfo_t *router_parse_entry_from_string(const char *s, const char *end,
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int cache_copy,
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int allow_annotations,
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const char *prepend_annotations);
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extrainfo_t *extrainfo_parse_entry_from_string(const char *s, const char *end,
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int cache_copy, struct digest_ri_map_t *routermap);
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addr_policy_t *router_parse_addr_policy_item_from_string(const char *s,
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int assume_action);
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version_status_t tor_version_is_obsolete(const char *myversion,
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const char *versionlist);
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int tor_version_supports_microdescriptors(const char *platform);
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int tor_version_as_new_as(const char *platform, const char *cutoff);
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int tor_version_parse(const char *s, tor_version_t *out);
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int tor_version_compare(tor_version_t *a, tor_version_t *b);
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int tor_version_same_series(tor_version_t *a, tor_version_t *b);
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void sort_version_list(smartlist_t *lst, int remove_duplicates);
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void assert_addr_policy_ok(smartlist_t *t);
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void dump_distinct_digest_count(int severity);
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int compare_routerstatus_entries(const void **_a, const void **_b);
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networkstatus_v2_t *networkstatus_v2_parse_from_string(const char *s);
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int networkstatus_verify_bw_weights(networkstatus_t *ns);
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networkstatus_t *networkstatus_parse_vote_from_string(const char *s,
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const char **eos_out,
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networkstatus_type_t ns_type);
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ns_detached_signatures_t *networkstatus_parse_detached_signatures(
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const char *s, const char *eos);
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smartlist_t *microdescs_parse_from_string(const char *s, const char *eos,
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int allow_annotations,
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int copy_body);
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authority_cert_t *authority_cert_parse_from_string(const char *s,
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const char **end_of_string);
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int rend_parse_v2_service_descriptor(rend_service_descriptor_t **parsed_out,
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char *desc_id_out,
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char **intro_points_encrypted_out,
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size_t *intro_points_encrypted_size_out,
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size_t *encoded_size_out,
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const char **next_out, const char *desc);
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int rend_decrypt_introduction_points(char **ipos_decrypted,
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size_t *ipos_decrypted_size,
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const char *descriptor_cookie,
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const char *ipos_encrypted,
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size_t ipos_encrypted_size);
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int rend_parse_introduction_points(rend_service_descriptor_t *parsed,
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const char *intro_points_encoded,
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size_t intro_points_encoded_size);
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int rend_parse_client_keys(strmap_t *parsed_clients, const char *str);
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#endif
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