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https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-12-06 19:41:15 +01:00
Nick Mathewson
de4cc126cb
With an IPv6 virtual address map, we can basically hand out a new IPv6 address for _every_ address we connect to. That'll be cool, and will let us maybe get around prop205 issues. This uses some fancy logic to try to make the code paths in the ipv4 and the ipv6 case as close as possible, and moves to randomly generated addresses so we don't need to maintain those stupid counters that will collide if Tor restarts but apps don't. Also has some XXXX items to fix to make this useful. More design needed.
61 lines
2.6 KiB
C
61 lines
2.6 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) 2007-2012, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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#ifndef TOR_ADDRESSMAP_H
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#define TOR_ADDRESSMAP_H
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void addressmap_init(void);
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void addressmap_clear_excluded_trackexithosts(const or_options_t *options);
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void addressmap_clear_invalid_automaps(const or_options_t *options);
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void addressmap_clean(time_t now);
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void addressmap_clear_configured(void);
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void addressmap_clear_transient(void);
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void addressmap_free_all(void);
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#define AMR_FLAG_USE_IPV4_DNS (1u<<0)
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#define AMR_FLAG_USE_IPV6_DNS (1u<<1)
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int addressmap_rewrite(char *address, size_t maxlen, unsigned flags,
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time_t *expires_out,
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addressmap_entry_source_t *exit_source_out);
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int addressmap_rewrite_reverse(char *address, size_t maxlen, unsigned flags,
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time_t *expires_out);
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int addressmap_have_mapping(const char *address, int update_timeout);
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void addressmap_register(const char *address, char *new_address,
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time_t expires, addressmap_entry_source_t source,
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const int address_wildcard,
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const int new_address_wildcard);
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int parse_virtual_addr_network(const char *val,
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sa_family_t family, int validate_only,
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char **msg);
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int client_dns_incr_failures(const char *address);
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void client_dns_clear_failures(const char *address);
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void client_dns_set_addressmap(entry_connection_t *for_conn,
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const char *address, const tor_addr_t *val,
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const char *exitname, int ttl);
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const char *addressmap_register_virtual_address(int type, char *new_address);
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void addressmap_get_mappings(smartlist_t *sl, time_t min_expires,
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time_t max_expires, int want_expiry);
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int address_is_in_virtual_range(const char *addr);
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void clear_trackexithost_mappings(const char *exitname);
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void client_dns_set_reverse_addressmap(entry_connection_t *for_conn,
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const char *address, const char *v,
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const char *exitname, int ttl);
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int addressmap_address_should_automap(const char *address,
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const or_options_t *options);
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#ifdef ADDRESSMAP_PRIVATE
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typedef struct virtual_addr_conf_t {
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tor_addr_t addr;
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maskbits_t bits;
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} virtual_addr_conf_t;
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void get_random_virtual_addr(const virtual_addr_conf_t *conf,
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tor_addr_t *addr_out);
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#endif
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#endif
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