Branch data Line data Source code
1 : : // Copyright (c) 2012 Pieter Wuille
2 : : // Copyright (c) 2012-2022 The Bitcoin Core developers
3 : : // Distributed under the MIT software license, see the accompanying
4 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 : :
6 : : #include <addrman.h>
7 : : #include <addrman_impl.h>
8 : :
9 : : #include <hash.h>
10 : : #include <logging.h>
11 : : #include <logging/timer.h>
12 : : #include <netaddress.h>
13 : : #include <protocol.h>
14 : : #include <random.h>
15 : : #include <serialize.h>
16 : : #include <streams.h>
17 : : #include <tinyformat.h>
18 : : #include <uint256.h>
19 : : #include <util/check.h>
20 : : #include <util/time.h>
21 : :
22 : : #include <cmath>
23 : : #include <optional>
24 : :
25 : : /** Over how many buckets entries with tried addresses from a single group (/16 for IPv4) are spread */
26 : : static constexpr uint32_t ADDRMAN_TRIED_BUCKETS_PER_GROUP{8};
27 : : /** Over how many buckets entries with new addresses originating from a single group are spread */
28 : : static constexpr uint32_t ADDRMAN_NEW_BUCKETS_PER_SOURCE_GROUP{64};
29 : : /** Maximum number of times an address can occur in the new table */
30 : : static constexpr int32_t ADDRMAN_NEW_BUCKETS_PER_ADDRESS{8};
31 : : /** How old addresses can maximally be */
32 : : static constexpr auto ADDRMAN_HORIZON{30 * 24h};
33 : : /** After how many failed attempts we give up on a new node */
34 : : static constexpr int32_t ADDRMAN_RETRIES{3};
35 : : /** How many successive failures are allowed ... */
36 : : static constexpr int32_t ADDRMAN_MAX_FAILURES{10};
37 : : /** ... in at least this duration */
38 : : static constexpr auto ADDRMAN_MIN_FAIL{7 * 24h};
39 : : /** How recent a successful connection should be before we allow an address to be evicted from tried */
40 : : static constexpr auto ADDRMAN_REPLACEMENT{4h};
41 : : /** The maximum number of tried addr collisions to store */
42 : : static constexpr size_t ADDRMAN_SET_TRIED_COLLISION_SIZE{10};
43 : : /** The maximum time we'll spend trying to resolve a tried table collision */
44 : : static constexpr auto ADDRMAN_TEST_WINDOW{40min};
45 : :
46 : 0 : int AddrInfo::GetTriedBucket(const uint256& nKey, const NetGroupManager& netgroupman) const
47 : : {
48 [ # # ][ # # ]: 0 : uint64_t hash1 = (HashWriter{} << nKey << GetKey()).GetCheapHash();
49 [ # # ][ # # ]: 0 : uint64_t hash2 = (HashWriter{} << nKey << netgroupman.GetGroup(*this) << (hash1 % ADDRMAN_TRIED_BUCKETS_PER_GROUP)).GetCheapHash();
[ # # ]
50 : 0 : return hash2 % ADDRMAN_TRIED_BUCKET_COUNT;
51 : 0 : }
52 : :
53 : 0 : int AddrInfo::GetNewBucket(const uint256& nKey, const CNetAddr& src, const NetGroupManager& netgroupman) const
54 : : {
55 : 0 : std::vector<unsigned char> vchSourceGroupKey = netgroupman.GetGroup(src);
56 [ # # ][ # # ]: 0 : uint64_t hash1 = (HashWriter{} << nKey << netgroupman.GetGroup(*this) << vchSourceGroupKey).GetCheapHash();
[ # # ][ # # ]
[ # # ][ # # ]
57 [ # # ][ # # ]: 0 : uint64_t hash2 = (HashWriter{} << nKey << vchSourceGroupKey << (hash1 % ADDRMAN_NEW_BUCKETS_PER_SOURCE_GROUP)).GetCheapHash();
[ # # ][ # # ]
[ # # ]
58 : 0 : return hash2 % ADDRMAN_NEW_BUCKET_COUNT;
59 : 0 : }
60 : :
61 : 0 : int AddrInfo::GetBucketPosition(const uint256& nKey, bool fNew, int bucket) const
62 : : {
63 [ # # ][ # # ]: 0 : uint64_t hash1 = (HashWriter{} << nKey << (fNew ? uint8_t{'N'} : uint8_t{'K'}) << bucket << GetKey()).GetCheapHash();
64 : 0 : return hash1 % ADDRMAN_BUCKET_SIZE;
65 : 0 : }
66 : :
67 : 0 : bool AddrInfo::IsTerrible(NodeSeconds now) const
68 : : {
69 [ # # ]: 0 : if (now - m_last_try <= 1min) { // never remove things tried in the last minute
70 : 0 : return false;
71 : : }
72 : :
73 [ # # ]: 0 : if (nTime > now + 10min) { // came in a flying DeLorean
74 : 0 : return true;
75 : : }
76 : :
77 [ # # ]: 0 : if (now - nTime > ADDRMAN_HORIZON) { // not seen in recent history
78 : 0 : return true;
79 : : }
80 : :
81 [ # # ][ # # ]: 0 : if (TicksSinceEpoch<std::chrono::seconds>(m_last_success) == 0 && nAttempts >= ADDRMAN_RETRIES) { // tried N times and never a success
82 : 0 : return true;
83 : : }
84 : :
85 [ # # ][ # # ]: 0 : if (now - m_last_success > ADDRMAN_MIN_FAIL && nAttempts >= ADDRMAN_MAX_FAILURES) { // N successive failures in the last week
86 : 0 : return true;
87 : : }
88 : :
89 : 0 : return false;
90 : 0 : }
91 : :
92 : 0 : double AddrInfo::GetChance(NodeSeconds now) const
93 : : {
94 : 0 : double fChance = 1.0;
95 : :
96 : : // deprioritize very recent attempts away
97 [ # # ]: 0 : if (now - m_last_try < 10min) {
98 : 0 : fChance *= 0.01;
99 : 0 : }
100 : :
101 : : // deprioritize 66% after each failed attempt, but at most 1/28th to avoid the search taking forever or overly penalizing outages.
102 : 0 : fChance *= pow(0.66, std::min(nAttempts, 8));
103 : :
104 : 0 : return fChance;
105 : : }
106 : :
107 [ # # ]: 0 : AddrManImpl::AddrManImpl(const NetGroupManager& netgroupman, bool deterministic, int32_t consistency_check_ratio)
108 : 0 : : insecure_rand{deterministic}
109 [ # # ][ # # ]: 0 : , nKey{deterministic ? uint256{1} : insecure_rand.rand256()}
110 : 0 : , m_consistency_check_ratio{consistency_check_ratio}
111 : 0 : , m_netgroupman{netgroupman}
112 : : {
113 [ # # ]: 0 : for (auto& bucket : vvNew) {
114 [ # # ]: 0 : for (auto& entry : bucket) {
115 : 0 : entry = -1;
116 : : }
117 : : }
118 [ # # ]: 0 : for (auto& bucket : vvTried) {
119 [ # # ]: 0 : for (auto& entry : bucket) {
120 : 0 : entry = -1;
121 : : }
122 : : }
123 : 0 : }
124 : :
125 : 0 : AddrManImpl::~AddrManImpl()
126 : : {
127 [ # # ]: 0 : nKey.SetNull();
128 : 0 : }
129 : :
130 : : template <typename Stream>
131 : 0 : void AddrManImpl::Serialize(Stream& s_) const
132 : : {
133 : 0 : LOCK(cs);
134 : :
135 : : /**
136 : : * Serialized format.
137 : : * * format version byte (@see `Format`)
138 : : * * lowest compatible format version byte. This is used to help old software decide
139 : : * whether to parse the file. For example:
140 : : * * Bitcoin Core version N knows how to parse up to format=3. If a new format=4 is
141 : : * introduced in version N+1 that is compatible with format=3 and it is known that
142 : : * version N will be able to parse it, then version N+1 will write
143 : : * (format=4, lowest_compatible=3) in the first two bytes of the file, and so
144 : : * version N will still try to parse it.
145 : : * * Bitcoin Core version N+2 introduces a new incompatible format=5. It will write
146 : : * (format=5, lowest_compatible=5) and so any versions that do not know how to parse
147 : : * format=5 will not try to read the file.
148 : : * * nKey
149 : : * * nNew
150 : : * * nTried
151 : : * * number of "new" buckets XOR 2**30
152 : : * * all new addresses (total count: nNew)
153 : : * * all tried addresses (total count: nTried)
154 : : * * for each new bucket:
155 : : * * number of elements
156 : : * * for each element: index in the serialized "all new addresses"
157 : : * * asmap checksum
158 : : *
159 : : * 2**30 is xorred with the number of buckets to make addrman deserializer v0 detect it
160 : : * as incompatible. This is necessary because it did not check the version number on
161 : : * deserialization.
162 : : *
163 : : * vvNew, vvTried, mapInfo, mapAddr and vRandom are never encoded explicitly;
164 : : * they are instead reconstructed from the other information.
165 : : *
166 : : * This format is more complex, but significantly smaller (at most 1.5 MiB), and supports
167 : : * changes to the ADDRMAN_ parameters without breaking the on-disk structure.
168 : : *
169 : : * We don't use SERIALIZE_METHODS since the serialization and deserialization code has
170 : : * very little in common.
171 : : */
172 : :
173 : : // Always serialize in the latest version (FILE_FORMAT).
174 [ # # ][ # # ]: 0 : ParamsStream s{CAddress::V2_DISK, s_};
175 : :
176 [ # # ][ # # ]: 0 : s << static_cast<uint8_t>(FILE_FORMAT);
177 : :
178 : : // Increment `lowest_compatible` iff a newly introduced format is incompatible with
179 : : // the previous one.
180 : : static constexpr uint8_t lowest_compatible = Format::V4_MULTIPORT;
181 [ # # ][ # # ]: 0 : s << static_cast<uint8_t>(INCOMPATIBILITY_BASE + lowest_compatible);
182 : :
183 [ # # ][ # # ]: 0 : s << nKey;
184 [ # # ][ # # ]: 0 : s << nNew;
185 [ # # ][ # # ]: 0 : s << nTried;
186 : :
187 : 0 : int nUBuckets = ADDRMAN_NEW_BUCKET_COUNT ^ (1 << 30);
188 [ # # ][ # # ]: 0 : s << nUBuckets;
189 : 0 : std::unordered_map<int, int> mapUnkIds;
190 : 0 : int nIds = 0;
191 [ # # ][ # # ]: 0 : for (const auto& entry : mapInfo) {
192 [ # # ][ # # ]: 0 : mapUnkIds[entry.first] = nIds;
193 : 0 : const AddrInfo& info = entry.second;
194 [ # # ][ # # ]: 0 : if (info.nRefCount) {
195 [ # # ][ # # ]: 0 : assert(nIds != nNew); // this means nNew was wrong, oh ow
196 [ # # ][ # # ]: 0 : s << info;
197 : 0 : nIds++;
198 : 0 : }
199 : : }
200 : 0 : nIds = 0;
201 [ # # ][ # # ]: 0 : for (const auto& entry : mapInfo) {
202 : 0 : const AddrInfo& info = entry.second;
203 [ # # ][ # # ]: 0 : if (info.fInTried) {
204 [ # # ][ # # ]: 0 : assert(nIds != nTried); // this means nTried was wrong, oh ow
205 [ # # ][ # # ]: 0 : s << info;
206 : 0 : nIds++;
207 : 0 : }
208 : : }
209 [ # # ][ # # ]: 0 : for (int bucket = 0; bucket < ADDRMAN_NEW_BUCKET_COUNT; bucket++) {
[ # # ][ # # ]
210 : 0 : int nSize = 0;
211 [ # # ][ # # ]: 0 : for (int i = 0; i < ADDRMAN_BUCKET_SIZE; i++) {
212 [ # # ][ # # ]: 0 : if (vvNew[bucket][i] != -1)
213 : 0 : nSize++;
214 : 0 : }
215 [ # # ][ # # ]: 0 : s << nSize;
216 [ # # ][ # # ]: 0 : for (int i = 0; i < ADDRMAN_BUCKET_SIZE; i++) {
217 [ # # ][ # # ]: 0 : if (vvNew[bucket][i] != -1) {
218 [ # # ][ # # ]: 0 : int nIndex = mapUnkIds[vvNew[bucket][i]];
219 [ # # ][ # # ]: 0 : s << nIndex;
220 : 0 : }
221 : 0 : }
222 : 0 : }
223 : : // Store asmap checksum after bucket entries so that it
224 : : // can be ignored by older clients for backward compatibility.
225 [ # # ][ # # ]: 0 : s << m_netgroupman.GetAsmapChecksum();
[ # # ][ # # ]
226 : 0 : }
227 : :
228 : : template <typename Stream>
229 : 0 : void AddrManImpl::Unserialize(Stream& s_)
230 : : {
231 : 0 : LOCK(cs);
232 : :
233 [ # # ][ # # ]: 0 : assert(vRandom.empty());
[ # # ][ # # ]
234 : :
235 : : Format format;
236 [ # # ][ # # ]: 0 : s_ >> Using<CustomUintFormatter<1>>(format);
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
237 : :
238 [ # # ][ # # ]: 0 : const auto ser_params = (format >= Format::V3_BIP155 ? CAddress::V2_DISK : CAddress::V1_DISK);
[ # # ][ # # ]
239 [ # # ][ # # ]: 0 : ParamsStream s{ser_params, s_};
[ # # ][ # # ]
240 : :
241 : : uint8_t compat;
242 [ # # ][ # # ]: 0 : s >> compat;
[ # # ][ # # ]
243 [ # # ][ # # ]: 0 : if (compat < INCOMPATIBILITY_BASE) {
[ # # ][ # # ]
244 [ # # ][ # # ]: 0 : throw std::ios_base::failure(strprintf(
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
245 : : "Corrupted addrman database: The compat value (%u) "
246 : : "is lower than the expected minimum value %u.",
247 : : compat, INCOMPATIBILITY_BASE));
248 : : }
249 : 0 : const uint8_t lowest_compatible = compat - INCOMPATIBILITY_BASE;
250 [ # # ][ # # ]: 0 : if (lowest_compatible > FILE_FORMAT) {
[ # # ][ # # ]
251 [ # # ][ # # ]: 0 : throw InvalidAddrManVersionError(strprintf(
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
252 : : "Unsupported format of addrman database: %u. It is compatible with formats >=%u, "
253 : : "but the maximum supported by this version of %s is %u.",
254 : 0 : uint8_t{format}, lowest_compatible, PACKAGE_NAME, uint8_t{FILE_FORMAT}));
255 : : }
256 : :
257 [ # # ][ # # ]: 0 : s >> nKey;
[ # # ][ # # ]
258 [ # # ][ # # ]: 0 : s >> nNew;
[ # # ][ # # ]
259 [ # # ][ # # ]: 0 : s >> nTried;
[ # # ][ # # ]
260 : 0 : int nUBuckets = 0;
261 [ # # ][ # # ]: 0 : s >> nUBuckets;
[ # # ][ # # ]
262 [ # # ][ # # ]: 0 : if (format >= Format::V1_DETERMINISTIC) {
[ # # ][ # # ]
263 : 0 : nUBuckets ^= (1 << 30);
264 : 0 : }
265 : :
266 [ # # ][ # # ]: 0 : if (nNew > ADDRMAN_NEW_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE || nNew < 0) {
[ # # ][ # # ]
267 [ # # ][ # # ]: 0 : throw std::ios_base::failure(
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
268 [ # # ][ # # ]: 0 : strprintf("Corrupt AddrMan serialization: nNew=%d, should be in [0, %d]",
[ # # ][ # # ]
269 : 0 : nNew,
270 : 0 : ADDRMAN_NEW_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE));
271 : : }
272 : :
273 [ # # ][ # # ]: 0 : if (nTried > ADDRMAN_TRIED_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE || nTried < 0) {
[ # # ][ # # ]
274 [ # # ][ # # ]: 0 : throw std::ios_base::failure(
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
275 [ # # ][ # # ]: 0 : strprintf("Corrupt AddrMan serialization: nTried=%d, should be in [0, %d]",
[ # # ][ # # ]
276 : 0 : nTried,
277 : 0 : ADDRMAN_TRIED_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE));
278 : : }
279 : :
280 : : // Deserialize entries from the new table.
281 [ # # ][ # # ]: 0 : for (int n = 0; n < nNew; n++) {
[ # # ][ # # ]
282 [ # # ][ # # ]: 0 : AddrInfo& info = mapInfo[n];
[ # # ][ # # ]
283 [ # # ][ # # ]: 0 : s >> info;
[ # # ][ # # ]
284 [ # # ][ # # ]: 0 : mapAddr[info] = n;
[ # # ][ # # ]
285 : 0 : info.nRandomPos = vRandom.size();
286 [ # # ][ # # ]: 0 : vRandom.push_back(n);
[ # # ][ # # ]
287 [ # # ][ # # ]: 0 : m_network_counts[info.GetNetwork()].n_new++;
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
288 : 0 : }
289 : 0 : nIdCount = nNew;
290 : :
291 : : // Deserialize entries from the tried table.
292 : 0 : int nLost = 0;
293 [ # # ][ # # ]: 0 : for (int n = 0; n < nTried; n++) {
[ # # ][ # # ]
294 [ # # ][ # # ]: 0 : AddrInfo info;
[ # # ][ # # ]
295 [ # # ][ # # ]: 0 : s >> info;
[ # # ][ # # ]
296 [ # # ][ # # ]: 0 : int nKBucket = info.GetTriedBucket(nKey, m_netgroupman);
[ # # ][ # # ]
297 [ # # ][ # # ]: 0 : int nKBucketPos = info.GetBucketPosition(nKey, false, nKBucket);
[ # # ][ # # ]
298 [ # # ][ # # ]: 0 : if (info.IsValid()
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
299 [ # # ][ # # ]: 0 : && vvTried[nKBucket][nKBucketPos] == -1) {
[ # # ][ # # ]
300 : 0 : info.nRandomPos = vRandom.size();
301 : 0 : info.fInTried = true;
302 [ # # ][ # # ]: 0 : vRandom.push_back(nIdCount);
[ # # ][ # # ]
303 [ # # ][ # # ]: 0 : mapInfo[nIdCount] = info;
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
304 [ # # ][ # # ]: 0 : mapAddr[info] = nIdCount;
[ # # ][ # # ]
305 : 0 : vvTried[nKBucket][nKBucketPos] = nIdCount;
306 : 0 : nIdCount++;
307 [ # # ][ # # ]: 0 : m_network_counts[info.GetNetwork()].n_tried++;
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
308 : 0 : } else {
309 : 0 : nLost++;
310 : : }
311 : 0 : }
312 : 0 : nTried -= nLost;
313 : :
314 : : // Store positions in the new table buckets to apply later (if possible).
315 : : // An entry may appear in up to ADDRMAN_NEW_BUCKETS_PER_ADDRESS buckets,
316 : : // so we store all bucket-entry_index pairs to iterate through later.
317 : 0 : std::vector<std::pair<int, int>> bucket_entries;
318 : :
319 [ # # ][ # # ]: 0 : for (int bucket = 0; bucket < nUBuckets; ++bucket) {
[ # # ][ # # ]
320 : 0 : int num_entries{0};
321 [ # # ][ # # ]: 0 : s >> num_entries;
[ # # ][ # # ]
322 [ # # ][ # # ]: 0 : for (int n = 0; n < num_entries; ++n) {
[ # # ][ # # ]
323 : 0 : int entry_index{0};
324 [ # # ][ # # ]: 0 : s >> entry_index;
[ # # ][ # # ]
325 [ # # ][ # # ]: 0 : if (entry_index >= 0 && entry_index < nNew) {
[ # # ][ # # ]
326 [ # # ][ # # ]: 0 : bucket_entries.emplace_back(bucket, entry_index);
[ # # ][ # # ]
327 : 0 : }
328 : 0 : }
329 : 0 : }
330 : :
331 : : // If the bucket count and asmap checksum haven't changed, then attempt
332 : : // to restore the entries to the buckets/positions they were in before
333 : : // serialization.
334 [ # # ][ # # ]: 0 : uint256 supplied_asmap_checksum{m_netgroupman.GetAsmapChecksum()};
[ # # ][ # # ]
335 [ # # ][ # # ]: 0 : uint256 serialized_asmap_checksum;
[ # # ][ # # ]
336 [ # # ][ # # ]: 0 : if (format >= Format::V2_ASMAP) {
[ # # ][ # # ]
337 [ # # ][ # # ]: 0 : s >> serialized_asmap_checksum;
[ # # ][ # # ]
338 : 0 : }
339 [ # # ][ # # ]: 0 : const bool restore_bucketing{nUBuckets == ADDRMAN_NEW_BUCKET_COUNT &&
[ # # ][ # # ]
340 [ # # ][ # # ]: 0 : serialized_asmap_checksum == supplied_asmap_checksum};
[ # # ][ # # ]
341 : :
342 [ # # ][ # # ]: 0 : if (!restore_bucketing) {
[ # # ][ # # ]
343 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Bucketing method was updated, re-bucketing addrman entries from disk\n");
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
344 : 0 : }
345 : :
346 [ # # ][ # # ]: 0 : for (auto bucket_entry : bucket_entries) {
[ # # ][ # # ]
347 : 0 : int bucket{bucket_entry.first};
348 : 0 : const int entry_index{bucket_entry.second};
349 [ # # ][ # # ]: 0 : AddrInfo& info = mapInfo[entry_index];
[ # # ][ # # ]
350 : :
351 : : // Don't store the entry in the new bucket if it's not a valid address for our addrman
352 [ # # ][ # # ]: 0 : if (!info.IsValid()) continue;
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
353 : :
354 : : // The entry shouldn't appear in more than
355 : : // ADDRMAN_NEW_BUCKETS_PER_ADDRESS. If it has already, just skip
356 : : // this bucket_entry.
357 [ # # ][ # # ]: 0 : if (info.nRefCount >= ADDRMAN_NEW_BUCKETS_PER_ADDRESS) continue;
[ # # ][ # # ]
358 : :
359 [ # # ][ # # ]: 0 : int bucket_position = info.GetBucketPosition(nKey, true, bucket);
[ # # ][ # # ]
360 [ # # ][ # # ]: 0 : if (restore_bucketing && vvNew[bucket][bucket_position] == -1) {
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
361 : : // Bucketing has not changed, using existing bucket positions for the new table
362 : 0 : vvNew[bucket][bucket_position] = entry_index;
363 : 0 : ++info.nRefCount;
364 : 0 : } else {
365 : : // In case the new table data cannot be used (bucket count wrong or new asmap),
366 : : // try to give them a reference based on their primary source address.
367 [ # # ][ # # ]: 0 : bucket = info.GetNewBucket(nKey, m_netgroupman);
[ # # ][ # # ]
368 [ # # ][ # # ]: 0 : bucket_position = info.GetBucketPosition(nKey, true, bucket);
[ # # ][ # # ]
369 [ # # ][ # # ]: 0 : if (vvNew[bucket][bucket_position] == -1) {
[ # # ][ # # ]
370 : 0 : vvNew[bucket][bucket_position] = entry_index;
371 : 0 : ++info.nRefCount;
372 : 0 : }
373 : : }
374 : : }
375 : :
376 : : // Prune new entries with refcount 0 (as a result of collisions or invalid address).
377 : 0 : int nLostUnk = 0;
378 [ # # ][ # # ]: 0 : for (auto it = mapInfo.cbegin(); it != mapInfo.cend(); ) {
[ # # ][ # # ]
379 [ # # ][ # # ]: 0 : if (it->second.fInTried == false && it->second.nRefCount == 0) {
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
380 : 0 : const auto itCopy = it++;
381 [ # # ][ # # ]: 0 : Delete(itCopy->first);
[ # # ][ # # ]
382 : 0 : ++nLostUnk;
383 : 0 : } else {
384 : 0 : ++it;
385 : : }
386 : : }
387 [ # # ][ # # ]: 0 : if (nLost + nLostUnk > 0) {
[ # # ][ # # ]
388 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "addrman lost %i new and %i tried addresses due to collisions or invalid addresses\n", nLostUnk, nLost);
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
389 : 0 : }
390 : :
391 [ # # ][ # # ]: 0 : const int check_code{CheckAddrman()};
[ # # ][ # # ]
392 [ # # ][ # # ]: 0 : if (check_code != 0) {
[ # # ][ # # ]
393 [ # # ][ # # ]: 0 : throw std::ios_base::failure(strprintf(
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
394 : : "Corrupt data. Consistency check failed with code %s",
395 : : check_code));
396 : : }
397 : 0 : }
398 : :
399 : 0 : AddrInfo* AddrManImpl::Find(const CService& addr, int* pnId)
400 : : {
401 : 0 : AssertLockHeld(cs);
402 : :
403 : 0 : const auto it = mapAddr.find(addr);
404 [ # # ]: 0 : if (it == mapAddr.end())
405 : 0 : return nullptr;
406 [ # # ]: 0 : if (pnId)
407 : 0 : *pnId = (*it).second;
408 : 0 : const auto it2 = mapInfo.find((*it).second);
409 [ # # ]: 0 : if (it2 != mapInfo.end())
410 : 0 : return &(*it2).second;
411 : 0 : return nullptr;
412 : 0 : }
413 : :
414 : 0 : AddrInfo* AddrManImpl::Create(const CAddress& addr, const CNetAddr& addrSource, int* pnId)
415 : : {
416 : 0 : AssertLockHeld(cs);
417 : :
418 : 0 : int nId = nIdCount++;
419 [ # # ]: 0 : mapInfo[nId] = AddrInfo(addr, addrSource);
420 : 0 : mapAddr[addr] = nId;
421 : 0 : mapInfo[nId].nRandomPos = vRandom.size();
422 : 0 : vRandom.push_back(nId);
423 : 0 : nNew++;
424 : 0 : m_network_counts[addr.GetNetwork()].n_new++;
425 [ # # ]: 0 : if (pnId)
426 : 0 : *pnId = nId;
427 : 0 : return &mapInfo[nId];
428 : 0 : }
429 : :
430 : 0 : void AddrManImpl::SwapRandom(unsigned int nRndPos1, unsigned int nRndPos2) const
431 : : {
432 : 0 : AssertLockHeld(cs);
433 : :
434 [ # # ]: 0 : if (nRndPos1 == nRndPos2)
435 : 0 : return;
436 : :
437 [ # # ][ # # ]: 0 : assert(nRndPos1 < vRandom.size() && nRndPos2 < vRandom.size());
438 : :
439 : 0 : int nId1 = vRandom[nRndPos1];
440 : 0 : int nId2 = vRandom[nRndPos2];
441 : :
442 : 0 : const auto it_1{mapInfo.find(nId1)};
443 : 0 : const auto it_2{mapInfo.find(nId2)};
444 [ # # ]: 0 : assert(it_1 != mapInfo.end());
445 [ # # ]: 0 : assert(it_2 != mapInfo.end());
446 : :
447 : 0 : it_1->second.nRandomPos = nRndPos2;
448 : 0 : it_2->second.nRandomPos = nRndPos1;
449 : :
450 : 0 : vRandom[nRndPos1] = nId2;
451 : 0 : vRandom[nRndPos2] = nId1;
452 : 0 : }
453 : :
454 : 0 : void AddrManImpl::Delete(int nId)
455 : : {
456 : 0 : AssertLockHeld(cs);
457 : :
458 [ # # ]: 0 : assert(mapInfo.count(nId) != 0);
459 : 0 : AddrInfo& info = mapInfo[nId];
460 [ # # ]: 0 : assert(!info.fInTried);
461 [ # # ]: 0 : assert(info.nRefCount == 0);
462 : :
463 : 0 : SwapRandom(info.nRandomPos, vRandom.size() - 1);
464 : 0 : m_network_counts[info.GetNetwork()].n_new--;
465 : 0 : vRandom.pop_back();
466 : 0 : mapAddr.erase(info);
467 : 0 : mapInfo.erase(nId);
468 : 0 : nNew--;
469 : 0 : }
470 : :
471 : 0 : void AddrManImpl::ClearNew(int nUBucket, int nUBucketPos)
472 : : {
473 : 0 : AssertLockHeld(cs);
474 : :
475 : : // if there is an entry in the specified bucket, delete it.
476 [ # # ]: 0 : if (vvNew[nUBucket][nUBucketPos] != -1) {
477 : 0 : int nIdDelete = vvNew[nUBucket][nUBucketPos];
478 : 0 : AddrInfo& infoDelete = mapInfo[nIdDelete];
479 [ # # ]: 0 : assert(infoDelete.nRefCount > 0);
480 : 0 : infoDelete.nRefCount--;
481 : 0 : vvNew[nUBucket][nUBucketPos] = -1;
482 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Removed %s from new[%i][%i]\n", infoDelete.ToStringAddrPort(), nUBucket, nUBucketPos);
[ # # ][ # # ]
[ # # ]
483 [ # # ]: 0 : if (infoDelete.nRefCount == 0) {
484 : 0 : Delete(nIdDelete);
485 : 0 : }
486 : 0 : }
487 : 0 : }
488 : :
489 : 0 : void AddrManImpl::MakeTried(AddrInfo& info, int nId)
490 : : {
491 : 0 : AssertLockHeld(cs);
492 : :
493 : : // remove the entry from all new buckets
494 : 0 : const int start_bucket{info.GetNewBucket(nKey, m_netgroupman)};
495 [ # # ]: 0 : for (int n = 0; n < ADDRMAN_NEW_BUCKET_COUNT; ++n) {
496 : 0 : const int bucket{(start_bucket + n) % ADDRMAN_NEW_BUCKET_COUNT};
497 : 0 : const int pos{info.GetBucketPosition(nKey, true, bucket)};
498 [ # # ]: 0 : if (vvNew[bucket][pos] == nId) {
499 : 0 : vvNew[bucket][pos] = -1;
500 : 0 : info.nRefCount--;
501 [ # # ]: 0 : if (info.nRefCount == 0) break;
502 : 0 : }
503 : 0 : }
504 : 0 : nNew--;
505 : 0 : m_network_counts[info.GetNetwork()].n_new--;
506 : :
507 [ # # ]: 0 : assert(info.nRefCount == 0);
508 : :
509 : : // which tried bucket to move the entry to
510 : 0 : int nKBucket = info.GetTriedBucket(nKey, m_netgroupman);
511 : 0 : int nKBucketPos = info.GetBucketPosition(nKey, false, nKBucket);
512 : :
513 : : // first make space to add it (the existing tried entry there is moved to new, deleting whatever is there).
514 [ # # ]: 0 : if (vvTried[nKBucket][nKBucketPos] != -1) {
515 : : // find an item to evict
516 : 0 : int nIdEvict = vvTried[nKBucket][nKBucketPos];
517 [ # # ]: 0 : assert(mapInfo.count(nIdEvict) == 1);
518 : 0 : AddrInfo& infoOld = mapInfo[nIdEvict];
519 : :
520 : : // Remove the to-be-evicted item from the tried set.
521 : 0 : infoOld.fInTried = false;
522 : 0 : vvTried[nKBucket][nKBucketPos] = -1;
523 : 0 : nTried--;
524 : 0 : m_network_counts[infoOld.GetNetwork()].n_tried--;
525 : :
526 : : // find which new bucket it belongs to
527 : 0 : int nUBucket = infoOld.GetNewBucket(nKey, m_netgroupman);
528 : 0 : int nUBucketPos = infoOld.GetBucketPosition(nKey, true, nUBucket);
529 : 0 : ClearNew(nUBucket, nUBucketPos);
530 [ # # ]: 0 : assert(vvNew[nUBucket][nUBucketPos] == -1);
531 : :
532 : : // Enter it into the new set again.
533 : 0 : infoOld.nRefCount = 1;
534 : 0 : vvNew[nUBucket][nUBucketPos] = nIdEvict;
535 : 0 : nNew++;
536 : 0 : m_network_counts[infoOld.GetNetwork()].n_new++;
537 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Moved %s from tried[%i][%i] to new[%i][%i] to make space\n",
[ # # ][ # # ]
[ # # ]
538 : : infoOld.ToStringAddrPort(), nKBucket, nKBucketPos, nUBucket, nUBucketPos);
539 : 0 : }
540 [ # # ]: 0 : assert(vvTried[nKBucket][nKBucketPos] == -1);
541 : :
542 : 0 : vvTried[nKBucket][nKBucketPos] = nId;
543 : 0 : nTried++;
544 : 0 : info.fInTried = true;
545 : 0 : m_network_counts[info.GetNetwork()].n_tried++;
546 : 0 : }
547 : :
548 : 0 : bool AddrManImpl::AddSingle(const CAddress& addr, const CNetAddr& source, std::chrono::seconds time_penalty)
549 : : {
550 : 0 : AssertLockHeld(cs);
551 : :
552 [ # # ]: 0 : if (!addr.IsRoutable())
553 : 0 : return false;
554 : :
555 : : int nId;
556 : 0 : AddrInfo* pinfo = Find(addr, &nId);
557 : :
558 : : // Do not set a penalty for a source's self-announcement
559 [ # # ]: 0 : if (addr == source) {
560 : 0 : time_penalty = 0s;
561 : 0 : }
562 : :
563 [ # # ]: 0 : if (pinfo) {
564 : : // periodically update nTime
565 : 0 : const bool currently_online{NodeClock::now() - addr.nTime < 24h};
566 [ # # ]: 0 : const auto update_interval{currently_online ? 1h : 24h};
567 [ # # ]: 0 : if (pinfo->nTime < addr.nTime - update_interval - time_penalty) {
568 : 0 : pinfo->nTime = std::max(NodeSeconds{0s}, addr.nTime - time_penalty);
569 : 0 : }
570 : :
571 : : // add services
572 : 0 : pinfo->nServices = ServiceFlags(pinfo->nServices | addr.nServices);
573 : :
574 : : // do not update if no new information is present
575 [ # # ]: 0 : if (addr.nTime <= pinfo->nTime) {
576 : 0 : return false;
577 : : }
578 : :
579 : : // do not update if the entry was already in the "tried" table
580 [ # # ]: 0 : if (pinfo->fInTried)
581 : 0 : return false;
582 : :
583 : : // do not update if the max reference count is reached
584 [ # # ]: 0 : if (pinfo->nRefCount == ADDRMAN_NEW_BUCKETS_PER_ADDRESS)
585 : 0 : return false;
586 : :
587 : : // stochastic test: previous nRefCount == N: 2^N times harder to increase it
588 : 0 : int nFactor = 1;
589 [ # # ]: 0 : for (int n = 0; n < pinfo->nRefCount; n++)
590 : 0 : nFactor *= 2;
591 [ # # ][ # # ]: 0 : if (nFactor > 1 && (insecure_rand.randrange(nFactor) != 0))
592 : 0 : return false;
593 : 0 : } else {
594 : 0 : pinfo = Create(addr, source, &nId);
595 : 0 : pinfo->nTime = std::max(NodeSeconds{0s}, pinfo->nTime - time_penalty);
596 : : }
597 : :
598 : 0 : int nUBucket = pinfo->GetNewBucket(nKey, source, m_netgroupman);
599 : 0 : int nUBucketPos = pinfo->GetBucketPosition(nKey, true, nUBucket);
600 : 0 : bool fInsert = vvNew[nUBucket][nUBucketPos] == -1;
601 [ # # ]: 0 : if (vvNew[nUBucket][nUBucketPos] != nId) {
602 [ # # ]: 0 : if (!fInsert) {
603 : 0 : AddrInfo& infoExisting = mapInfo[vvNew[nUBucket][nUBucketPos]];
604 [ # # ][ # # ]: 0 : if (infoExisting.IsTerrible() || (infoExisting.nRefCount > 1 && pinfo->nRefCount == 0)) {
[ # # ]
605 : : // Overwrite the existing new table entry.
606 : 0 : fInsert = true;
607 : 0 : }
608 : 0 : }
609 [ # # ]: 0 : if (fInsert) {
610 : 0 : ClearNew(nUBucket, nUBucketPos);
611 : 0 : pinfo->nRefCount++;
612 : 0 : vvNew[nUBucket][nUBucketPos] = nId;
613 : 0 : const auto mapped_as{m_netgroupman.GetMappedAS(addr)};
614 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Added %s%s to new[%i][%i]\n",
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
615 : : addr.ToStringAddrPort(), (mapped_as ? strprintf(" mapped to AS%i", mapped_as) : ""), nUBucket, nUBucketPos);
616 : 0 : } else {
617 [ # # ]: 0 : if (pinfo->nRefCount == 0) {
618 : 0 : Delete(nId);
619 : 0 : }
620 : : }
621 : 0 : }
622 : 0 : return fInsert;
623 : 0 : }
624 : :
625 : 0 : bool AddrManImpl::Good_(const CService& addr, bool test_before_evict, NodeSeconds time)
626 : : {
627 : 0 : AssertLockHeld(cs);
628 : :
629 : : int nId;
630 : :
631 : 0 : m_last_good = time;
632 : :
633 : 0 : AddrInfo* pinfo = Find(addr, &nId);
634 : :
635 : : // if not found, bail out
636 [ # # ]: 0 : if (!pinfo) return false;
637 : :
638 : 0 : AddrInfo& info = *pinfo;
639 : :
640 : : // update info
641 : 0 : info.m_last_success = time;
642 : 0 : info.m_last_try = time;
643 : 0 : info.nAttempts = 0;
644 : : // nTime is not updated here, to avoid leaking information about
645 : : // currently-connected peers.
646 : :
647 : : // if it is already in the tried set, don't do anything else
648 [ # # ]: 0 : if (info.fInTried) return false;
649 : :
650 : : // if it is not in new, something bad happened
651 [ # # ]: 0 : if (!Assume(info.nRefCount > 0)) return false;
652 : :
653 : :
654 : : // which tried bucket to move the entry to
655 : 0 : int tried_bucket = info.GetTriedBucket(nKey, m_netgroupman);
656 : 0 : int tried_bucket_pos = info.GetBucketPosition(nKey, false, tried_bucket);
657 : :
658 : : // Will moving this address into tried evict another entry?
659 [ # # ][ # # ]: 0 : if (test_before_evict && (vvTried[tried_bucket][tried_bucket_pos] != -1)) {
660 [ # # ]: 0 : if (m_tried_collisions.size() < ADDRMAN_SET_TRIED_COLLISION_SIZE) {
661 : 0 : m_tried_collisions.insert(nId);
662 : 0 : }
663 : : // Output the entry we'd be colliding with, for debugging purposes
664 : 0 : auto colliding_entry = mapInfo.find(vvTried[tried_bucket][tried_bucket_pos]);
665 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Collision with %s while attempting to move %s to tried table. Collisions=%d\n",
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
666 : : colliding_entry != mapInfo.end() ? colliding_entry->second.ToStringAddrPort() : "",
667 : : addr.ToStringAddrPort(),
668 : : m_tried_collisions.size());
669 : 0 : return false;
670 : : } else {
671 : : // move nId to the tried tables
672 : 0 : MakeTried(info, nId);
673 : 0 : const auto mapped_as{m_netgroupman.GetMappedAS(addr)};
674 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Moved %s%s to tried[%i][%i]\n",
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
[ # # ][ # # ]
675 : : addr.ToStringAddrPort(), (mapped_as ? strprintf(" mapped to AS%i", mapped_as) : ""), tried_bucket, tried_bucket_pos);
676 : 0 : return true;
677 : : }
678 : 0 : }
679 : :
680 : 0 : bool AddrManImpl::Add_(const std::vector<CAddress>& vAddr, const CNetAddr& source, std::chrono::seconds time_penalty)
681 : : {
682 : 0 : int added{0};
683 [ # # ]: 0 : for (std::vector<CAddress>::const_iterator it = vAddr.begin(); it != vAddr.end(); it++) {
684 : 0 : added += AddSingle(*it, source, time_penalty) ? 1 : 0;
685 : 0 : }
686 [ # # ]: 0 : if (added > 0) {
687 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Added %i addresses (of %i) from %s: %i tried, %i new\n", added, vAddr.size(), source.ToStringAddr(), nTried, nNew);
[ # # ][ # # ]
[ # # ]
688 : 0 : }
689 : 0 : return added > 0;
690 : 0 : }
691 : :
692 : 0 : void AddrManImpl::Attempt_(const CService& addr, bool fCountFailure, NodeSeconds time)
693 : : {
694 : 0 : AssertLockHeld(cs);
695 : :
696 : 0 : AddrInfo* pinfo = Find(addr);
697 : :
698 : : // if not found, bail out
699 [ # # ]: 0 : if (!pinfo)
700 : 0 : return;
701 : :
702 : 0 : AddrInfo& info = *pinfo;
703 : :
704 : : // update info
705 : 0 : info.m_last_try = time;
706 [ # # ][ # # ]: 0 : if (fCountFailure && info.m_last_count_attempt < m_last_good) {
707 : 0 : info.m_last_count_attempt = time;
708 : 0 : info.nAttempts++;
709 : 0 : }
710 : 0 : }
711 : :
712 : 0 : std::pair<CAddress, NodeSeconds> AddrManImpl::Select_(bool new_only, std::optional<Network> network) const
713 : : {
714 : 0 : AssertLockHeld(cs);
715 : :
716 [ # # ]: 0 : if (vRandom.empty()) return {};
717 : :
718 : 0 : size_t new_count = nNew;
719 : 0 : size_t tried_count = nTried;
720 : :
721 [ # # ]: 0 : if (network.has_value()) {
722 : 0 : auto it = m_network_counts.find(*network);
723 [ # # ]: 0 : if (it == m_network_counts.end()) return {};
724 : :
725 : 0 : auto counts = it->second;
726 : 0 : new_count = counts.n_new;
727 : 0 : tried_count = counts.n_tried;
728 : 0 : }
729 : :
730 [ # # ][ # # ]: 0 : if (new_only && new_count == 0) return {};
731 [ # # ]: 0 : if (new_count + tried_count == 0) return {};
732 : :
733 : : // Decide if we are going to search the new or tried table
734 : : // If either option is viable, use a 50% chance to choose
735 : : bool search_tried;
736 [ # # ][ # # ]: 0 : if (new_only || tried_count == 0) {
737 : 0 : search_tried = false;
738 [ # # ]: 0 : } else if (new_count == 0) {
739 : 0 : search_tried = true;
740 : 0 : } else {
741 : 0 : search_tried = insecure_rand.randbool();
742 : : }
743 : :
744 : 0 : const int bucket_count{search_tried ? ADDRMAN_TRIED_BUCKET_COUNT : ADDRMAN_NEW_BUCKET_COUNT};
745 : :
746 : : // Loop through the addrman table until we find an appropriate entry
747 : 0 : double chance_factor = 1.0;
748 : 0 : while (1) {
749 : : // Pick a bucket, and an initial position in that bucket.
750 : 0 : int bucket = insecure_rand.randrange(bucket_count);
751 : 0 : int initial_position = insecure_rand.randrange(ADDRMAN_BUCKET_SIZE);
752 : :
753 : : // Iterate over the positions of that bucket, starting at the initial one,
754 : : // and looping around.
755 : : int i, position, node_id;
756 [ # # ]: 0 : for (i = 0; i < ADDRMAN_BUCKET_SIZE; ++i) {
757 : 0 : position = (initial_position + i) % ADDRMAN_BUCKET_SIZE;
758 : 0 : node_id = GetEntry(search_tried, bucket, position);
759 [ # # ]: 0 : if (node_id != -1) {
760 [ # # ]: 0 : if (network.has_value()) {
761 : 0 : const auto it{mapInfo.find(node_id)};
762 [ # # ][ # # ]: 0 : if (Assume(it != mapInfo.end()) && it->second.GetNetwork() == *network) break;
763 : 0 : } else {
764 : 0 : break;
765 : : }
766 : 0 : }
767 : 0 : }
768 : :
769 : : // If the bucket is entirely empty, start over with a (likely) different one.
770 [ # # ]: 0 : if (i == ADDRMAN_BUCKET_SIZE) continue;
771 : :
772 : : // Find the entry to return.
773 : 0 : const auto it_found{mapInfo.find(node_id)};
774 [ # # ]: 0 : assert(it_found != mapInfo.end());
775 : 0 : const AddrInfo& info{it_found->second};
776 : :
777 : : // With probability GetChance() * chance_factor, return the entry.
778 [ # # ]: 0 : if (insecure_rand.randbits(30) < chance_factor * info.GetChance() * (1 << 30)) {
779 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Selected %s from %s\n", info.ToStringAddrPort(), search_tried ? "tried" : "new");
[ # # ][ # # ]
[ # # ]
780 : 0 : return {info, info.m_last_try};
781 : : }
782 : :
783 : : // Otherwise start over with a (likely) different bucket, and increased chance factor.
784 : 0 : chance_factor *= 1.2;
785 : : }
786 : 0 : }
787 : :
788 : 0 : int AddrManImpl::GetEntry(bool use_tried, size_t bucket, size_t position) const
789 : : {
790 : 0 : AssertLockHeld(cs);
791 : :
792 [ # # ]: 0 : if (use_tried) {
793 [ # # ][ # # ]: 0 : if (Assume(position < ADDRMAN_BUCKET_SIZE) && Assume(bucket < ADDRMAN_TRIED_BUCKET_COUNT)) {
794 : 0 : return vvTried[bucket][position];
795 : : }
796 : 0 : } else {
797 [ # # ][ # # ]: 0 : if (Assume(position < ADDRMAN_BUCKET_SIZE) && Assume(bucket < ADDRMAN_NEW_BUCKET_COUNT)) {
798 : 0 : return vvNew[bucket][position];
799 : : }
800 : : }
801 : :
802 : 0 : return -1;
803 : 0 : }
804 : :
805 : 0 : std::vector<CAddress> AddrManImpl::GetAddr_(size_t max_addresses, size_t max_pct, std::optional<Network> network, const bool filtered) const
806 : : {
807 : 0 : AssertLockHeld(cs);
808 : :
809 : 0 : size_t nNodes = vRandom.size();
810 [ # # ]: 0 : if (max_pct != 0) {
811 : 0 : nNodes = max_pct * nNodes / 100;
812 : 0 : }
813 [ # # ]: 0 : if (max_addresses != 0) {
814 : 0 : nNodes = std::min(nNodes, max_addresses);
815 : 0 : }
816 : :
817 : : // gather a list of random nodes, skipping those of low quality
818 : 0 : const auto now{Now<NodeSeconds>()};
819 : 0 : std::vector<CAddress> addresses;
820 [ # # ]: 0 : for (unsigned int n = 0; n < vRandom.size(); n++) {
821 [ # # ]: 0 : if (addresses.size() >= nNodes)
822 : 0 : break;
823 : :
824 : 0 : int nRndPos = insecure_rand.randrange(vRandom.size() - n) + n;
825 [ # # ]: 0 : SwapRandom(n, nRndPos);
826 [ # # ]: 0 : const auto it{mapInfo.find(vRandom[n])};
827 [ # # ]: 0 : assert(it != mapInfo.end());
828 : :
829 : 0 : const AddrInfo& ai{it->second};
830 : :
831 : : // Filter by network (optional)
832 [ # # ][ # # ]: 0 : if (network != std::nullopt && ai.GetNetClass() != network) continue;
[ # # ][ # # ]
833 : :
834 : : // Filter for quality
835 [ # # ][ # # ]: 0 : if (ai.IsTerrible(now) && filtered) continue;
[ # # ]
836 : :
837 [ # # ]: 0 : addresses.push_back(ai);
838 : 0 : }
839 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "GetAddr returned %d random addresses\n", addresses.size());
[ # # ][ # # ]
[ # # ]
840 : 0 : return addresses;
841 [ # # ]: 0 : }
842 : :
843 : 0 : std::vector<std::pair<AddrInfo, AddressPosition>> AddrManImpl::GetEntries_(bool from_tried) const
844 : : {
845 : 0 : AssertLockHeld(cs);
846 : :
847 : 0 : const int bucket_count = from_tried ? ADDRMAN_TRIED_BUCKET_COUNT : ADDRMAN_NEW_BUCKET_COUNT;
848 : 0 : std::vector<std::pair<AddrInfo, AddressPosition>> infos;
849 [ # # ]: 0 : for (int bucket = 0; bucket < bucket_count; ++bucket) {
850 [ # # ]: 0 : for (int position = 0; position < ADDRMAN_BUCKET_SIZE; ++position) {
851 [ # # ]: 0 : int id = GetEntry(from_tried, bucket, position);
852 [ # # ]: 0 : if (id >= 0) {
853 [ # # ][ # # ]: 0 : AddrInfo info = mapInfo.at(id);
854 [ # # ]: 0 : AddressPosition location = AddressPosition(
855 : 0 : from_tried,
856 [ # # ]: 0 : /*multiplicity_in=*/from_tried ? 1 : info.nRefCount,
857 : 0 : bucket,
858 : 0 : position);
859 [ # # ]: 0 : infos.emplace_back(info, location);
860 : 0 : }
861 : 0 : }
862 : 0 : }
863 : :
864 : 0 : return infos;
865 [ # # ]: 0 : }
866 : :
867 : 0 : void AddrManImpl::Connected_(const CService& addr, NodeSeconds time)
868 : : {
869 : 0 : AssertLockHeld(cs);
870 : :
871 : 0 : AddrInfo* pinfo = Find(addr);
872 : :
873 : : // if not found, bail out
874 [ # # ]: 0 : if (!pinfo)
875 : 0 : return;
876 : :
877 : 0 : AddrInfo& info = *pinfo;
878 : :
879 : : // update info
880 : 0 : const auto update_interval{20min};
881 [ # # ]: 0 : if (time - info.nTime > update_interval) {
882 : 0 : info.nTime = time;
883 : 0 : }
884 : 0 : }
885 : :
886 : 0 : void AddrManImpl::SetServices_(const CService& addr, ServiceFlags nServices)
887 : : {
888 : 0 : AssertLockHeld(cs);
889 : :
890 : 0 : AddrInfo* pinfo = Find(addr);
891 : :
892 : : // if not found, bail out
893 [ # # ]: 0 : if (!pinfo)
894 : 0 : return;
895 : :
896 : 0 : AddrInfo& info = *pinfo;
897 : :
898 : : // update info
899 : 0 : info.nServices = nServices;
900 : 0 : }
901 : :
902 : 0 : void AddrManImpl::ResolveCollisions_()
903 : : {
904 : 0 : AssertLockHeld(cs);
905 : :
906 [ # # ]: 0 : for (std::set<int>::iterator it = m_tried_collisions.begin(); it != m_tried_collisions.end();) {
907 : 0 : int id_new = *it;
908 : :
909 : 0 : bool erase_collision = false;
910 : :
911 : : // If id_new not found in mapInfo remove it from m_tried_collisions
912 [ # # ]: 0 : if (mapInfo.count(id_new) != 1) {
913 : 0 : erase_collision = true;
914 : 0 : } else {
915 : 0 : AddrInfo& info_new = mapInfo[id_new];
916 : :
917 : : // Which tried bucket to move the entry to.
918 : 0 : int tried_bucket = info_new.GetTriedBucket(nKey, m_netgroupman);
919 : 0 : int tried_bucket_pos = info_new.GetBucketPosition(nKey, false, tried_bucket);
920 [ # # ]: 0 : if (!info_new.IsValid()) { // id_new may no longer map to a valid address
921 : 0 : erase_collision = true;
922 [ # # ]: 0 : } else if (vvTried[tried_bucket][tried_bucket_pos] != -1) { // The position in the tried bucket is not empty
923 : :
924 : : // Get the to-be-evicted address that is being tested
925 : 0 : int id_old = vvTried[tried_bucket][tried_bucket_pos];
926 : 0 : AddrInfo& info_old = mapInfo[id_old];
927 : :
928 : 0 : const auto current_time{Now<NodeSeconds>()};
929 : :
930 : : // Has successfully connected in last X hours
931 [ # # ]: 0 : if (current_time - info_old.m_last_success < ADDRMAN_REPLACEMENT) {
932 : 0 : erase_collision = true;
933 [ # # ]: 0 : } else if (current_time - info_old.m_last_try < ADDRMAN_REPLACEMENT) { // attempted to connect and failed in last X hours
934 : :
935 : : // Give address at least 60 seconds to successfully connect
936 [ # # ]: 0 : if (current_time - info_old.m_last_try > 60s) {
937 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Replacing %s with %s in tried table\n", info_old.ToStringAddrPort(), info_new.ToStringAddrPort());
[ # # ][ # # ]
[ # # ][ # # ]
938 : :
939 : : // Replaces an existing address already in the tried table with the new address
940 : 0 : Good_(info_new, false, current_time);
941 : 0 : erase_collision = true;
942 : 0 : }
943 [ # # ]: 0 : } else if (current_time - info_new.m_last_success > ADDRMAN_TEST_WINDOW) {
944 : : // If the collision hasn't resolved in some reasonable amount of time,
945 : : // just evict the old entry -- we must not be able to
946 : : // connect to it for some reason.
947 [ # # ][ # # ]: 0 : LogPrint(BCLog::ADDRMAN, "Unable to test; replacing %s with %s in tried table anyway\n", info_old.ToStringAddrPort(), info_new.ToStringAddrPort());
[ # # ][ # # ]
[ # # ][ # # ]
948 : 0 : Good_(info_new, false, current_time);
949 : 0 : erase_collision = true;
950 : 0 : }
951 : 0 : } else { // Collision is not actually a collision anymore
952 : 0 : Good_(info_new, false, Now<NodeSeconds>());
953 : 0 : erase_collision = true;
954 : : }
955 : : }
956 : :
957 [ # # ]: 0 : if (erase_collision) {
958 : 0 : m_tried_collisions.erase(it++);
959 : 0 : } else {
960 : 0 : it++;
961 : : }
962 : : }
963 : 0 : }
964 : :
965 : 0 : std::pair<CAddress, NodeSeconds> AddrManImpl::SelectTriedCollision_()
966 : : {
967 : 0 : AssertLockHeld(cs);
968 : :
969 [ # # ]: 0 : if (m_tried_collisions.size() == 0) return {};
970 : :
971 : 0 : std::set<int>::iterator it = m_tried_collisions.begin();
972 : :
973 : : // Selects a random element from m_tried_collisions
974 : 0 : std::advance(it, insecure_rand.randrange(m_tried_collisions.size()));
975 : 0 : int id_new = *it;
976 : :
977 : : // If id_new not found in mapInfo remove it from m_tried_collisions
978 [ # # ]: 0 : if (mapInfo.count(id_new) != 1) {
979 : 0 : m_tried_collisions.erase(it);
980 : 0 : return {};
981 : : }
982 : :
983 : 0 : const AddrInfo& newInfo = mapInfo[id_new];
984 : :
985 : : // which tried bucket to move the entry to
986 : 0 : int tried_bucket = newInfo.GetTriedBucket(nKey, m_netgroupman);
987 : 0 : int tried_bucket_pos = newInfo.GetBucketPosition(nKey, false, tried_bucket);
988 : :
989 : 0 : const AddrInfo& info_old = mapInfo[vvTried[tried_bucket][tried_bucket_pos]];
990 : 0 : return {info_old, info_old.m_last_try};
991 : 0 : }
992 : :
993 : 0 : std::optional<AddressPosition> AddrManImpl::FindAddressEntry_(const CAddress& addr)
994 : : {
995 : 0 : AssertLockHeld(cs);
996 : :
997 : 0 : AddrInfo* addr_info = Find(addr);
998 : :
999 [ # # ]: 0 : if (!addr_info) return std::nullopt;
1000 : :
1001 [ # # ]: 0 : if(addr_info->fInTried) {
1002 : 0 : int bucket{addr_info->GetTriedBucket(nKey, m_netgroupman)};
1003 : 0 : return AddressPosition(/*tried_in=*/true,
1004 : : /*multiplicity_in=*/1,
1005 : 0 : /*bucket_in=*/bucket,
1006 : 0 : /*position_in=*/addr_info->GetBucketPosition(nKey, false, bucket));
1007 : : } else {
1008 : 0 : int bucket{addr_info->GetNewBucket(nKey, m_netgroupman)};
1009 : 0 : return AddressPosition(/*tried_in=*/false,
1010 : 0 : /*multiplicity_in=*/addr_info->nRefCount,
1011 : 0 : /*bucket_in=*/bucket,
1012 : 0 : /*position_in=*/addr_info->GetBucketPosition(nKey, true, bucket));
1013 : : }
1014 : 0 : }
1015 : :
1016 : 0 : size_t AddrManImpl::Size_(std::optional<Network> net, std::optional<bool> in_new) const
1017 : : {
1018 : 0 : AssertLockHeld(cs);
1019 : :
1020 [ # # ]: 0 : if (!net.has_value()) {
1021 [ # # ]: 0 : if (in_new.has_value()) {
1022 [ # # ]: 0 : return *in_new ? nNew : nTried;
1023 : : } else {
1024 : 0 : return vRandom.size();
1025 : : }
1026 : : }
1027 [ # # ]: 0 : if (auto it = m_network_counts.find(*net); it != m_network_counts.end()) {
1028 : 0 : auto net_count = it->second;
1029 [ # # ]: 0 : if (in_new.has_value()) {
1030 [ # # ]: 0 : return *in_new ? net_count.n_new : net_count.n_tried;
1031 : : } else {
1032 : 0 : return net_count.n_new + net_count.n_tried;
1033 : : }
1034 : : }
1035 : 0 : return 0;
1036 : 0 : }
1037 : :
1038 : 0 : void AddrManImpl::Check() const
1039 : : {
1040 : 0 : AssertLockHeld(cs);
1041 : :
1042 : : // Run consistency checks 1 in m_consistency_check_ratio times if enabled
1043 [ # # ]: 0 : if (m_consistency_check_ratio == 0) return;
1044 [ # # ]: 0 : if (insecure_rand.randrange(m_consistency_check_ratio) >= 1) return;
1045 : :
1046 : 0 : const int err{CheckAddrman()};
1047 [ # # ]: 0 : if (err) {
1048 [ # # ][ # # ]: 0 : LogPrintf("ADDRMAN CONSISTENCY CHECK FAILED!!! err=%i\n", err);
[ # # ]
1049 : 0 : assert(false);
1050 : : }
1051 : 0 : }
1052 : :
1053 : 0 : int AddrManImpl::CheckAddrman() const
1054 : : {
1055 : 0 : AssertLockHeld(cs);
1056 : :
1057 [ # # ][ # # ]: 0 : LOG_TIME_MILLIS_WITH_CATEGORY_MSG_ONCE(
[ # # ]
1058 : : strprintf("new %i, tried %i, total %u", nNew, nTried, vRandom.size()), BCLog::ADDRMAN);
1059 : :
1060 : 0 : std::unordered_set<int> setTried;
1061 : 0 : std::unordered_map<int, int> mapNew;
1062 : 0 : std::unordered_map<Network, NewTriedCount> local_counts;
1063 : :
1064 [ # # ]: 0 : if (vRandom.size() != (size_t)(nTried + nNew))
1065 : 0 : return -7;
1066 : :
1067 [ # # ]: 0 : for (const auto& entry : mapInfo) {
1068 : 0 : int n = entry.first;
1069 : 0 : const AddrInfo& info = entry.second;
1070 [ # # ]: 0 : if (info.fInTried) {
1071 [ # # ][ # # ]: 0 : if (!TicksSinceEpoch<std::chrono::seconds>(info.m_last_success)) {
1072 : 0 : return -1;
1073 : : }
1074 [ # # ]: 0 : if (info.nRefCount)
1075 : 0 : return -2;
1076 [ # # ]: 0 : setTried.insert(n);
1077 [ # # ][ # # ]: 0 : local_counts[info.GetNetwork()].n_tried++;
1078 : 0 : } else {
1079 [ # # ][ # # ]: 0 : if (info.nRefCount < 0 || info.nRefCount > ADDRMAN_NEW_BUCKETS_PER_ADDRESS)
1080 : 0 : return -3;
1081 [ # # ]: 0 : if (!info.nRefCount)
1082 : 0 : return -4;
1083 [ # # ]: 0 : mapNew[n] = info.nRefCount;
1084 [ # # ][ # # ]: 0 : local_counts[info.GetNetwork()].n_new++;
1085 : : }
1086 [ # # ]: 0 : const auto it{mapAddr.find(info)};
1087 [ # # ][ # # ]: 0 : if (it == mapAddr.end() || it->second != n) {
1088 : 0 : return -5;
1089 : : }
1090 [ # # ][ # # ]: 0 : if (info.nRandomPos < 0 || (size_t)info.nRandomPos >= vRandom.size() || vRandom[info.nRandomPos] != n)
[ # # ]
1091 : 0 : return -14;
1092 [ # # ][ # # ]: 0 : if (info.m_last_try < NodeSeconds{0s}) {
[ # # ][ # # ]
1093 : 0 : return -6;
1094 : : }
1095 [ # # ][ # # ]: 0 : if (info.m_last_success < NodeSeconds{0s}) {
[ # # ][ # # ]
1096 : 0 : return -8;
1097 : : }
1098 : : }
1099 : :
1100 [ # # ]: 0 : if (setTried.size() != (size_t)nTried)
1101 : 0 : return -9;
1102 [ # # ]: 0 : if (mapNew.size() != (size_t)nNew)
1103 : 0 : return -10;
1104 : :
1105 [ # # ]: 0 : for (int n = 0; n < ADDRMAN_TRIED_BUCKET_COUNT; n++) {
1106 [ # # ]: 0 : for (int i = 0; i < ADDRMAN_BUCKET_SIZE; i++) {
1107 [ # # ]: 0 : if (vvTried[n][i] != -1) {
1108 [ # # ][ # # ]: 0 : if (!setTried.count(vvTried[n][i]))
1109 : 0 : return -11;
1110 [ # # ]: 0 : const auto it{mapInfo.find(vvTried[n][i])};
1111 [ # # ][ # # ]: 0 : if (it == mapInfo.end() || it->second.GetTriedBucket(nKey, m_netgroupman) != n) {
[ # # ]
1112 : 0 : return -17;
1113 : : }
1114 [ # # ][ # # ]: 0 : if (it->second.GetBucketPosition(nKey, false, n) != i) {
1115 : 0 : return -18;
1116 : : }
1117 [ # # ]: 0 : setTried.erase(vvTried[n][i]);
1118 : 0 : }
1119 : 0 : }
1120 : 0 : }
1121 : :
1122 [ # # ]: 0 : for (int n = 0; n < ADDRMAN_NEW_BUCKET_COUNT; n++) {
1123 [ # # ]: 0 : for (int i = 0; i < ADDRMAN_BUCKET_SIZE; i++) {
1124 [ # # ]: 0 : if (vvNew[n][i] != -1) {
1125 [ # # ][ # # ]: 0 : if (!mapNew.count(vvNew[n][i]))
1126 : 0 : return -12;
1127 [ # # ]: 0 : const auto it{mapInfo.find(vvNew[n][i])};
1128 [ # # ][ # # ]: 0 : if (it == mapInfo.end() || it->second.GetBucketPosition(nKey, true, n) != i) {
[ # # ]
1129 : 0 : return -19;
1130 : : }
1131 [ # # ][ # # ]: 0 : if (--mapNew[vvNew[n][i]] == 0)
1132 [ # # ]: 0 : mapNew.erase(vvNew[n][i]);
1133 : 0 : }
1134 : 0 : }
1135 : 0 : }
1136 : :
1137 [ # # ]: 0 : if (setTried.size())
1138 : 0 : return -13;
1139 [ # # ]: 0 : if (mapNew.size())
1140 : 0 : return -15;
1141 [ # # ][ # # ]: 0 : if (nKey.IsNull())
1142 : 0 : return -16;
1143 : :
1144 : : // It's possible that m_network_counts may have all-zero entries that local_counts
1145 : : // doesn't have if addrs from a network were being added and then removed again in the past.
1146 [ # # ]: 0 : if (m_network_counts.size() < local_counts.size()) {
1147 : 0 : return -20;
1148 : : }
1149 [ # # ]: 0 : for (const auto& [net, count] : m_network_counts) {
1150 [ # # ][ # # ]: 0 : if (local_counts[net].n_new != count.n_new || local_counts[net].n_tried != count.n_tried) {
[ # # ][ # # ]
[ # # ][ # # ]
1151 : 0 : return -21;
1152 : : }
1153 : : }
1154 : :
1155 : 0 : return 0;
1156 : 0 : }
1157 : :
1158 : 0 : size_t AddrManImpl::Size(std::optional<Network> net, std::optional<bool> in_new) const
1159 : : {
1160 : 0 : LOCK(cs);
1161 [ # # ]: 0 : Check();
1162 [ # # ]: 0 : auto ret = Size_(net, in_new);
1163 [ # # ]: 0 : Check();
1164 : 0 : return ret;
1165 : 0 : }
1166 : :
1167 : 0 : bool AddrManImpl::Add(const std::vector<CAddress>& vAddr, const CNetAddr& source, std::chrono::seconds time_penalty)
1168 : : {
1169 : 0 : LOCK(cs);
1170 [ # # ]: 0 : Check();
1171 [ # # ]: 0 : auto ret = Add_(vAddr, source, time_penalty);
1172 [ # # ]: 0 : Check();
1173 : 0 : return ret;
1174 : 0 : }
1175 : :
1176 : 0 : bool AddrManImpl::Good(const CService& addr, NodeSeconds time)
1177 : : {
1178 : 0 : LOCK(cs);
1179 [ # # ]: 0 : Check();
1180 [ # # ]: 0 : auto ret = Good_(addr, /*test_before_evict=*/true, time);
1181 [ # # ]: 0 : Check();
1182 : 0 : return ret;
1183 : 0 : }
1184 : :
1185 : 0 : void AddrManImpl::Attempt(const CService& addr, bool fCountFailure, NodeSeconds time)
1186 : : {
1187 : 0 : LOCK(cs);
1188 [ # # ]: 0 : Check();
1189 [ # # ]: 0 : Attempt_(addr, fCountFailure, time);
1190 [ # # ]: 0 : Check();
1191 : 0 : }
1192 : :
1193 : 0 : void AddrManImpl::ResolveCollisions()
1194 : : {
1195 : 0 : LOCK(cs);
1196 [ # # ]: 0 : Check();
1197 [ # # ]: 0 : ResolveCollisions_();
1198 [ # # ]: 0 : Check();
1199 : 0 : }
1200 : :
1201 : 0 : std::pair<CAddress, NodeSeconds> AddrManImpl::SelectTriedCollision()
1202 : : {
1203 : 0 : LOCK(cs);
1204 [ # # ]: 0 : Check();
1205 [ # # ]: 0 : auto ret = SelectTriedCollision_();
1206 [ # # ]: 0 : Check();
1207 : 0 : return ret;
1208 [ # # ]: 0 : }
1209 : :
1210 : 0 : std::pair<CAddress, NodeSeconds> AddrManImpl::Select(bool new_only, std::optional<Network> network) const
1211 : : {
1212 : 0 : LOCK(cs);
1213 [ # # ]: 0 : Check();
1214 [ # # ]: 0 : auto addrRet = Select_(new_only, network);
1215 [ # # ]: 0 : Check();
1216 : 0 : return addrRet;
1217 [ # # ]: 0 : }
1218 : :
1219 : 0 : std::vector<CAddress> AddrManImpl::GetAddr(size_t max_addresses, size_t max_pct, std::optional<Network> network, const bool filtered) const
1220 : : {
1221 : 0 : LOCK(cs);
1222 [ # # ]: 0 : Check();
1223 [ # # ]: 0 : auto addresses = GetAddr_(max_addresses, max_pct, network, filtered);
1224 [ # # ]: 0 : Check();
1225 : 0 : return addresses;
1226 [ # # ]: 0 : }
1227 : :
1228 : 0 : std::vector<std::pair<AddrInfo, AddressPosition>> AddrManImpl::GetEntries(bool from_tried) const
1229 : : {
1230 : 0 : LOCK(cs);
1231 [ # # ]: 0 : Check();
1232 [ # # ]: 0 : auto addrInfos = GetEntries_(from_tried);
1233 [ # # ]: 0 : Check();
1234 : 0 : return addrInfos;
1235 [ # # ]: 0 : }
1236 : :
1237 : 0 : void AddrManImpl::Connected(const CService& addr, NodeSeconds time)
1238 : : {
1239 : 0 : LOCK(cs);
1240 [ # # ]: 0 : Check();
1241 [ # # ]: 0 : Connected_(addr, time);
1242 [ # # ]: 0 : Check();
1243 : 0 : }
1244 : :
1245 : 0 : void AddrManImpl::SetServices(const CService& addr, ServiceFlags nServices)
1246 : : {
1247 : 0 : LOCK(cs);
1248 [ # # ]: 0 : Check();
1249 [ # # ]: 0 : SetServices_(addr, nServices);
1250 [ # # ]: 0 : Check();
1251 : 0 : }
1252 : :
1253 : 0 : std::optional<AddressPosition> AddrManImpl::FindAddressEntry(const CAddress& addr)
1254 : : {
1255 : 0 : LOCK(cs);
1256 [ # # ]: 0 : Check();
1257 [ # # ]: 0 : auto entry = FindAddressEntry_(addr);
1258 [ # # ]: 0 : Check();
1259 : : return entry;
1260 : 0 : }
1261 : :
1262 : 0 : AddrMan::AddrMan(const NetGroupManager& netgroupman, bool deterministic, int32_t consistency_check_ratio)
1263 : 0 : : m_impl(std::make_unique<AddrManImpl>(netgroupman, deterministic, consistency_check_ratio)) {}
1264 : :
1265 : 0 : AddrMan::~AddrMan() = default;
1266 : :
1267 : : template <typename Stream>
1268 : 0 : void AddrMan::Serialize(Stream& s_) const
1269 : : {
1270 : 0 : m_impl->Serialize<Stream>(s_);
1271 : 0 : }
1272 : :
1273 : : template <typename Stream>
1274 : 0 : void AddrMan::Unserialize(Stream& s_)
1275 : : {
1276 : 0 : m_impl->Unserialize<Stream>(s_);
1277 : 0 : }
1278 : :
1279 : : // explicit instantiation
1280 : : template void AddrMan::Serialize(HashedSourceWriter<AutoFile>&) const;
1281 : : template void AddrMan::Serialize(DataStream&) const;
1282 : : template void AddrMan::Unserialize(AutoFile&);
1283 : : template void AddrMan::Unserialize(HashVerifier<AutoFile>&);
1284 : : template void AddrMan::Unserialize(DataStream&);
1285 : : template void AddrMan::Unserialize(HashVerifier<DataStream>&);
1286 : :
1287 : 0 : size_t AddrMan::Size(std::optional<Network> net, std::optional<bool> in_new) const
1288 : : {
1289 : 0 : return m_impl->Size(net, in_new);
1290 : : }
1291 : :
1292 : 0 : bool AddrMan::Add(const std::vector<CAddress>& vAddr, const CNetAddr& source, std::chrono::seconds time_penalty)
1293 : : {
1294 : 0 : return m_impl->Add(vAddr, source, time_penalty);
1295 : : }
1296 : :
1297 : 0 : bool AddrMan::Good(const CService& addr, NodeSeconds time)
1298 : : {
1299 : 0 : return m_impl->Good(addr, time);
1300 : : }
1301 : :
1302 : 0 : void AddrMan::Attempt(const CService& addr, bool fCountFailure, NodeSeconds time)
1303 : : {
1304 : 0 : m_impl->Attempt(addr, fCountFailure, time);
1305 : 0 : }
1306 : :
1307 : 0 : void AddrMan::ResolveCollisions()
1308 : : {
1309 : 0 : m_impl->ResolveCollisions();
1310 : 0 : }
1311 : :
1312 : 0 : std::pair<CAddress, NodeSeconds> AddrMan::SelectTriedCollision()
1313 : : {
1314 : 0 : return m_impl->SelectTriedCollision();
1315 : : }
1316 : :
1317 : 0 : std::pair<CAddress, NodeSeconds> AddrMan::Select(bool new_only, std::optional<Network> network) const
1318 : : {
1319 : 0 : return m_impl->Select(new_only, network);
1320 : : }
1321 : :
1322 : 0 : std::vector<CAddress> AddrMan::GetAddr(size_t max_addresses, size_t max_pct, std::optional<Network> network, const bool filtered) const
1323 : : {
1324 : 0 : return m_impl->GetAddr(max_addresses, max_pct, network, filtered);
1325 : : }
1326 : :
1327 : 0 : std::vector<std::pair<AddrInfo, AddressPosition>> AddrMan::GetEntries(bool use_tried) const
1328 : : {
1329 : 0 : return m_impl->GetEntries(use_tried);
1330 : : }
1331 : :
1332 : 0 : void AddrMan::Connected(const CService& addr, NodeSeconds time)
1333 : : {
1334 : 0 : m_impl->Connected(addr, time);
1335 : 0 : }
1336 : :
1337 : 0 : void AddrMan::SetServices(const CService& addr, ServiceFlags nServices)
1338 : : {
1339 : 0 : m_impl->SetServices(addr, nServices);
1340 : 0 : }
1341 : :
1342 : 0 : std::optional<AddressPosition> AddrMan::FindAddressEntry(const CAddress& addr)
1343 : : {
1344 : 0 : return m_impl->FindAddressEntry(addr);
1345 : : }
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