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/* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2020, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file routerset.h
* \brief Header file for routerset.c
**/
#ifndef TOR_ROUTERSET_H
#define TOR_ROUTERSET_H
routerset_t *routerset_new(void);
void routerset_refresh_countries(routerset_t *rs);
int routerset_parse(routerset_t *target, const char *s,
const char *description);
void routerset_union(routerset_t *target, const routerset_t *source);
int routerset_is_list(const routerset_t *set);
int routerset_needs_geoip(const routerset_t *set);
int routerset_is_empty(const routerset_t *set);
int routerset_contains_router(const routerset_t *set, const routerinfo_t *ri,
country_t country);
int routerset_contains_routerstatus(const routerset_t *set,
const routerstatus_t *rs,
country_t country);
int routerset_contains_extendinfo(const routerset_t *set,
const extend_info_t *ei);
struct bridge_info_t;
int routerset_contains_bridge(const routerset_t *set,
const struct bridge_info_t *bridge);
int routerset_contains_node(const routerset_t *set, const node_t *node);
void routerset_get_all_nodes(smartlist_t *out, const routerset_t *routerset,
const routerset_t *excludeset,
int running_only);
int routerset_add_unknown_ccs(routerset_t **setp, int only_if_some_cc_set);
void routerset_subtract_nodes(smartlist_t *out,
const routerset_t *routerset);
char *routerset_to_string(const routerset_t *routerset);
int routerset_equal(const routerset_t *old, const routerset_t *new);
void routerset_free_(routerset_t *routerset);
#define routerset_free(rs) FREE_AND_NULL(routerset_t, routerset_free_, (rs))
int routerset_len(const routerset_t *set);
struct var_type_def_t;
extern const struct var_type_def_t ROUTERSET_type_defn;
typedef routerset_t *config_decl_ROUTERSET;
#ifdef ROUTERSET_PRIVATE
#include "lib/container/bitarray.h"
STATIC char * routerset_get_countryname(const char *c);
STATIC int routerset_contains(const routerset_t *set, const tor_addr_t *addr,
uint16_t orport,
const char *nickname, const char *id_digest,
country_t country);
/** A routerset specifies constraints on a set of possible routerinfos, based
* on their names, identities, or addresses. It is optimized for determining
* whether a router is a member or not, in O(1+P) time, where P is the number
* of address policy constraints. */
struct routerset_t {
/** A list of strings for the elements of the policy. Each string is either
* a nickname, a hexadecimal identity fingerprint, or an address policy. A
* router belongs to the set if its nickname OR its identity OR its address
* matches an entry here. */
smartlist_t *list;
/** A map from lowercase nicknames of routers in the set to (void*)1 */
strmap_t *names;
/** A map from identity digests routers in the set to (void*)1 */
digestmap_t *digests;
/** An address policy for routers in the set. For implementation reasons,
* a router belongs to the set if it is _rejected_ by this policy. */
smartlist_t *policies;
/** A human-readable description of what this routerset is for. Used in
* log messages. */
char *description;
/** A list of the country codes in this set. */
smartlist_t *country_names;
/** Total number of countries we knew about when we built <b>countries</b>.*/
int n_countries;
/** Bit array mapping the return value of geoip_get_country() to 1 iff the
* country is a member of this routerset. Note that we MUST call
* routerset_refresh_countries() whenever the geoip country list is
* reloaded. */
bitarray_t *countries;
};
#endif /* defined(ROUTERSET_PRIVATE) */
#endif /* !defined(TOR_ROUTERSET_H) */
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