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authorNick Mathewson <nickm@torproject.org>2018-07-05 14:51:07 -0400
committerNick Mathewson <nickm@torproject.org>2018-07-05 14:51:07 -0400
commit0adcfbc7c8b579ebfe4c16c86700e8b466fc9a56 (patch)
treeb6bba4d836d10e6285e357de9970bfdc3eb3b8a9 /src/common
parent24c0f83185a9c5dff080b250d9a8e15bbf8e1a88 (diff)
downloadtor-0adcfbc7c8b579ebfe4c16c86700e8b466fc9a56.tar.gz
tor-0adcfbc7c8b579ebfe4c16c86700e8b466fc9a56.zip
Move address_set to src/or
This is temporary, until src/or is split. Putting this in containers would be another logical alternative, except that addresses depend on containers, and we don't like cycles.
Diffstat (limited to 'src/common')
-rw-r--r--src/common/address_set.c71
-rw-r--r--src/common/address_set.h31
-rw-r--r--src/common/include.am2
3 files changed, 0 insertions, 104 deletions
diff --git a/src/common/address_set.c b/src/common/address_set.c
deleted file mode 100644
index 1bd1462387..0000000000
--- a/src/common/address_set.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/* Copyright (c) 2018-2018, The Tor Project, Inc. */
-/* See LICENSE for licensing information */
-
-/**
- * \file address_set.c
- * \brief Implementation for a set of addresses.
- *
- * This module was first written on a semi-emergency basis to improve the
- * robustness of the anti-DoS module. As such, it's written in a pretty
- * conservative way, and should be susceptible to improvement later on.
- **/
-
-#include "orconfig.h"
-#include "common/address_set.h"
-#include "lib/net/address.h"
-#include "lib/container/bloomfilt.h"
-#include "lib/crypt_ops/crypto_rand.h"
-#include "siphash.h"
-
-/* Wrap our hash function to have the signature that the bloom filter
- * needs. */
-static uint64_t
-bloomfilt_addr_hash(const struct sipkey *key,
- const void *item)
-{
- return tor_addr_keyed_hash(key, item);
-}
-
-/**
- * Allocate and return an address_set, suitable for holding up to
- * <b>max_address_guess</b> distinct values.
- */
-address_set_t *
-address_set_new(int max_addresses_guess)
-{
- uint8_t k[BLOOMFILT_KEY_LEN];
- crypto_rand((void*)k, sizeof(k));
- return bloomfilt_new(max_addresses_guess, bloomfilt_addr_hash, k);
-}
-
-/**
- * Add <b>addr</b> to <b>set</b>.
- *
- * All future queries for <b>addr</b> in set will return true. Removing
- * items is not possible.
- */
-void
-address_set_add(address_set_t *set, const struct tor_addr_t *addr)
-{
- bloomfilt_add(set, addr);
-}
-
-/** As address_set_add(), but take an ipv4 address in host order. */
-void
-address_set_add_ipv4h(address_set_t *set, uint32_t addr)
-{
- tor_addr_t a;
- tor_addr_from_ipv4h(&a, addr);
- address_set_add(set, &a);
-}
-
-/**
- * Return true if <b>addr</b> is a member of <b>set</b>. (And probably,
- * return false if <b>addr</b> is not a member of set.)
- */
-int
-address_set_probably_contains(const address_set_t *set,
- const struct tor_addr_t *addr)
-{
- return bloomfilt_probably_contains(set, addr);
-}
diff --git a/src/common/address_set.h b/src/common/address_set.h
deleted file mode 100644
index 2efa1cb03b..0000000000
--- a/src/common/address_set.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (c) 2018-2018, The Tor Project, Inc. */
-/* See LICENSE for licensing information */
-
-/**
- * \file address_set.h
- * \brief Types to handle sets of addresses.
- **/
-
-#ifndef TOR_ADDRESS_SET_H
-#define TOR_ADDRESS_SET_H
-
-#include "orconfig.h"
-#include "lib/cc/torint.h"
-#include "lib/container/bloomfilt.h"
-
-/**
- * An address_set_t represents a set of tor_addr_t values. The implementation
- * is probabilistic: false negatives cannot occur but false positives are
- * possible.
- */
-typedef struct bloomfilt_t address_set_t;
-struct tor_addr_t;
-
-address_set_t *address_set_new(int max_addresses_guess);
-#define address_set_free(set) bloomfilt_free(set)
-void address_set_add(address_set_t *set, const struct tor_addr_t *addr);
-void address_set_add_ipv4h(address_set_t *set, uint32_t addr);
-int address_set_probably_contains(const address_set_t *set,
- const struct tor_addr_t *addr);
-
-#endif
diff --git a/src/common/include.am b/src/common/include.am
index 565482bcf9..de4ecbaeea 100644
--- a/src/common/include.am
+++ b/src/common/include.am
@@ -18,7 +18,6 @@ libor_extra_source=
endif
LIBOR_A_SRC = \
- src/common/address_set.c \
src/common/token_bucket.c \
src/common/workqueue.c \
$(libor_extra_source)
@@ -49,7 +48,6 @@ src_common_libor_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
src_common_libor_event_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS)
COMMONHEADERS = \
- src/common/address_set.h \
src/common/compat_libevent.h \
src/common/procmon.h \
src/common/timers.h \